CN110703541A - Heat dissipation mechanism and industrial camera - Google Patents

Heat dissipation mechanism and industrial camera Download PDF

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Publication number
CN110703541A
CN110703541A CN201910892785.0A CN201910892785A CN110703541A CN 110703541 A CN110703541 A CN 110703541A CN 201910892785 A CN201910892785 A CN 201910892785A CN 110703541 A CN110703541 A CN 110703541A
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CN
China
Prior art keywords
heat
heat dissipation
assembly
fan
conduction
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Granted
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CN201910892785.0A
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Chinese (zh)
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CN110703541B (en
Inventor
张孟臣
王衍哲
陈健
张超
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Zhejiang Huarui Technology Co.,Ltd.
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Zhejiang Huarui Technology Co Ltd
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Priority to CN201910892785.0A priority Critical patent/CN110703541B/en
Publication of CN110703541A publication Critical patent/CN110703541A/en
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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B17/00Details of cameras or camera bodies; Accessories therefor
    • G03B17/55Details of cameras or camera bodies; Accessories therefor with provision for heating or cooling, e.g. in aircraft

Abstract

The invention provides a heat dissipation mechanism, which comprises a first heat dissipation assembly, a second heat dissipation assembly and a fan, wherein the first heat dissipation assembly is arranged on the first heat dissipation assembly; the first heat dissipation assembly comprises a first heat dissipation part and a second heat dissipation part, the second heat dissipation assembly comprises a third heat dissipation part and a fourth heat dissipation part, the height of the first heat dissipation part is larger than that of the second heat dissipation part, the height of the third heat dissipation part is larger than that of the fourth heat dissipation part, and the fan is at least partially accommodated between the second heat dissipation part and the fourth heat dissipation part and can cool the first heat dissipation assembly and the second heat dissipation assembly. An industrial camera is also provided. First heat radiation component and second heat radiation component all have the heat dissipation part that is step-like distribution, concentrate the heat on the source that generates heat more than at least one between higher first heat dissipation part and the third heat dissipation part to realize the convection heat dissipation through the fan, its radiating efficiency is high. In addition, the heat dissipation mechanism and the industrial camera have the advantages of reasonable and compact structure, high reliability, good temperature equalization effect and strong heat dissipation capability.

Description

Heat dissipation mechanism and industrial camera
Technical Field
The invention relates to the technical field of industrial cameras, in particular to a heat dissipation mechanism and an industrial camera.
Background
With the development of modern society and the maturity of mechanical automation technology, a machine can reach a specified position at a specified time according to a specified track through a preset program so as to complete preset operation work, an industrial camera is required to be used for identifying actions and product stations in the moving process of the machine, the industrial camera is used as a key component in a machine vision system, and the machine is widely applied to the fields of intelligent manufacturing equipment, industrial automation detection and the like.
With the rapid development of informatization and mobile internet, an industrial camera tends to have multiple functions, the requirement on the recognition speed is higher and higher, and one of the main factors influencing the processing speed is the working temperature. The power consumption and the heat flux density of the existing industrial camera are large, so that the generated heat is gathered in the camera, and if the heat cannot be quickly dissipated, the stability and the using effect of the camera are affected. High temperature will cause dead spots that reduce the camera frequency and degrade the pixel quality.
The existing industrial camera has poor heat dissipation performance of the casing, low overall heat dissipation efficiency and certain overtemperature risk.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a heat dissipation mechanism with a novel and reasonable structure and capable of effectively achieving good heat dissipation in view of the above-mentioned current state of the art.
The second technical problem to be solved by the present invention is to provide an industrial camera with a novel and reasonable structure and capable of effectively achieving good heat dissipation, so as to effectively meet the heat dissipation requirement of the industrial camera in a complex environment.
The technical scheme adopted by the invention for solving the first technical problem is as follows: the heat dissipation mechanism is used for dissipating heat of more than one heating source and comprises a first heat dissipation component, a second heat dissipation component and a fan;
the first heat dissipation assembly comprises a first heat dissipation part and a second heat dissipation part, the second heat dissipation assembly comprises a third heat dissipation part and a fourth heat dissipation part, the height of the first heat dissipation part is larger than that of the second heat dissipation part, the height of the third heat dissipation part is larger than that of the fourth heat dissipation part, and the fan is at least partially accommodated between the second heat dissipation part and the fourth heat dissipation part and can cool the first heat dissipation assembly and the second heat dissipation assembly.
In one embodiment, the first heat sink part is opposite to and spaced from the third heat sink part.
In one embodiment, the first heat sink piece and the third heat sink piece have a longitudinal gap therebetween.
In one embodiment, the first heat dissipation part comprises a plurality of first fins arranged at intervals, the third heat dissipation part comprises a plurality of third fins arranged at intervals, the first fins and the third fins are at least partially overlapped longitudinally, and a transverse gap is formed between each first fin and each third fin.
In one embodiment, the fan comprises more than one fan blade, the fan blade is provided with at least one zigzag flange, and the zigzag flanges are arranged at intervals along the length direction of the fan blade.
In one embodiment, the fan includes more than one fan blade, and the fan blade extends to the inside of the first heat dissipation element and/or the second heat dissipation element.
In one embodiment, the heat dissipation mechanism further includes a first housing, which is used to fix and carry the first heat dissipation assembly, the second heat dissipation assembly and the fan, and the first housing is respectively provided with an air inlet and an air outlet along the airflow direction of the fan.
In one embodiment, the heat dissipation mechanism further comprises a flow guide member disposed relatively close to the air inlet.
In one embodiment, the first heat dissipation assembly further includes a first substrate and a first heat conducting member, the second heat dissipation assembly further includes a second substrate and a second heat conducting member, the first heat conducting member and the first heat dissipation portion are respectively disposed opposite to the first substrate, and the second heat conducting member and the third heat dissipation portion are respectively disposed opposite to the second substrate.
In one embodiment, the first heat conduction member includes a first heat conduction portion and a second heat conduction portion, and the second heat conduction member includes a third heat conduction portion and a fourth heat conduction portion, wherein the height of the first heat conduction portion is greater than the height of the second heat conduction portion, the height of the third heat conduction portion is greater than the height of the fourth heat conduction portion, and the first heat conduction portion and the third heat conduction portion are respectively configured to contact an external heat source.
In one embodiment, the second heat conduction portion is disposed corresponding to the first heat dissipation portion, and the fourth heat conduction portion is disposed corresponding to the third heat dissipation portion.
In one embodiment, a heat conducting unit is arranged on an end face, away from the first heat dissipation part, of the first heat conducting part, and a heat conducting unit is arranged on an end face, away from the third heat dissipation part, of the third heat conducting part.
In one embodiment, the heat conducting unit is at least one selected from heat conducting silicone grease, heat conducting mud and heat conducting pad.
The technical scheme adopted by the invention for solving the second technical problem is as follows: provides an industrial camera, which comprises a second shell, a control panel, an induction plate and the heat dissipation mechanism, wherein,
a first cavity, a second cavity and a third cavity are formed in the second shell, the second cavity is located between the first cavity and the third cavity, and the heat dissipation mechanism is accommodated in the second cavity;
the induction plate is arranged in the first cavity, faces the first heat dissipation assembly and can dissipate heat into the second cavity through the first heat dissipation assembly;
the control panel set up in the third cavity, the control panel orientation the second radiator unit sets up to can pass through the second radiator unit with heat gives off extremely in the second cavity.
In one embodiment, a heat conduction unit is filled between the induction plate and the inner wall of the first chamber, and a heat conduction unit is also filled between the control plate and the inner wall of the third chamber.
In one embodiment, the industrial camera further comprises a lens assembly and a power board, the lens assembly is mounted at one end, close to the induction board, of the second shell, the power board is arranged at one end, far away from the induction board, of the second shell, and a heat conduction unit is filled between the power board and the inner wall of the second shell.
In one embodiment, a heat dissipation unit is disposed at an end of the second housing close to the power board, and the heat dissipation unit is configured to dissipate heat in the second housing to the outside of the second housing.
Compared with the prior art, the invention has the beneficial effects that:
first heat radiation component and second heat radiation component all have the heat dissipation part that is step-like distribution, concentrate the heat on the source that generates heat more than at least one between higher first heat dissipation part and the third heat dissipation part to realize the convection heat dissipation through the fan, its radiating efficiency is high. In addition, the heat dissipation mechanism and the industrial camera have the advantages of reasonable and compact structure, high reliability, good temperature equalization effect and strong heat dissipation capability.
Drawings
Fig. 1 is a schematic structural diagram of a heat dissipation mechanism according to an embodiment;
fig. 2 is a schematic view of an assembly structure of a first heat dissipation assembly and a second heat dissipation assembly according to an embodiment;
FIG. 3 is a schematic structural diagram of a heat dissipation mechanism according to an embodiment;
FIG. 4 is a schematic structural diagram of a heat dissipation mechanism according to an embodiment;
FIG. 5 is a schematic diagram illustrating an effect of the fan in a working state according to an embodiment;
FIG. 6 is a schematic structural diagram of a wind turbine according to an embodiment;
FIG. 7 is a schematic structural diagram of a heat dissipation mechanism according to an embodiment;
FIG. 8 is a schematic structural diagram of a heat dissipation mechanism according to an embodiment;
FIG. 9 is a schematic structural diagram of a wind turbine according to an embodiment;
FIG. 10 is a schematic structural diagram of a wind turbine provided in one embodiment;
FIG. 11 is a schematic structural diagram of a wind turbine according to an embodiment;
FIG. 12 is a schematic structural diagram of a wind turbine provided in one embodiment;
FIG. 13 is a schematic structural diagram of a heat dissipation mechanism according to an embodiment;
FIG. 14 is a schematic structural diagram of a heat dissipation mechanism according to an embodiment;
FIG. 15 is a schematic diagram of an industrial camera according to an embodiment;
fig. 16 is a schematic cross-sectional view of the industrial camera of fig. 15 showing a portion of the internal structure thereof along the direction a-a.
Reference numerals:
a heat dissipation mechanism-100, a first heat dissipation component-10, a first heat dissipation component-11, a first heat dissipation component-111, a first fin-111 a, a second heat dissipation component-112, a first substrate-12, a first heat conduction member-13, a first heat conduction part-131, a second heat conduction part-132, a second heat dissipation component-20, a second heat dissipation component-21, a third heat dissipation part-211, a second fin-211 a, a fourth heat dissipation part-212, a second substrate-22, a second heat conduction member-23, a third heat conduction part-231, a fourth heat conduction part-232, a fan-30, a fan blade-31, a flange-311, a flow guide member-40, a heat conduction unit-50, a first shell-60, an air inlet-61, an air outlet-62, an industrial camera-200, a heat dissipation component-111, a first heat dissipation component-111 a, a second heat dissipation component, The lens comprises a second shell-201, a first cavity-2011, a second cavity-2012, a third cavity-2013, a heat dissipation unit-2014, a control board-202, a sensing board-203, a lens assembly-204 and a power supply board-205.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 4, a heat dissipation mechanism 100 according to an embodiment of the present invention can be accommodated in an industrial camera and used for dissipating heat from more than one heat source in the industrial camera. The heat dissipation mechanism 100 may be detachably disposed inside the industrial camera, or may be integrally assembled with the industrial camera. It should be understood that the heat dissipation mechanism 100 is not limited to the application in industrial cameras, and the present embodiment is only an example of a preferred application, and the present invention is not limited thereto.
Specifically, the heat dissipation mechanism 100 includes a first heat dissipation assembly 10, a second heat dissipation assembly 20, and a fan 30. First radiator unit 10 and second radiator unit 20 are relative and looks interval setting, can be with heat conduction on the heat source and assemble between the two, again can make the heat dissipation on first radiator unit 10 and the second radiator unit 20 not influenced each other, and fan 30 inlays and locates between first radiator unit 10 and the second radiator unit 20 for make the heat of assembling take place convection current or radiation, and this radiating mode's efficiency is higher, and the space sets up comparatively rationally compactedly.
Further, the first heat dissipation assembly 10 includes a first heat dissipation member 11, a first substrate 12 and a first heat conduction member 13, wherein the first substrate 12 is substantially in a shape of a flat plate and is used for connecting and fixing the first heat dissipation member 11 and the first heat conduction member 13. The first heat conduction member 13 and the first heat dissipation member 11 are respectively disposed opposite to the first substrate 12, which is advantageous for longitudinal conduction of heat. It is understood that the first heat conduction member 13 may be disposed according to the actual heat position, for example, the first heat conduction member 13 is disposed on the side edge of the first substrate 12, or the first heat conduction member 13 is disposed on the same side of the first heat dissipation member 11, and the above arrangement is within the scope of the present invention as long as the technical effect of the heat conduction is not affected.
Similarly, the second heat dissipation assembly 20 includes a second heat dissipation member 21, a second substrate 22 and a second heat conduction member 23, and the second substrate 22 is substantially in the shape of a flat plate and is used for connecting and fixing the second heat dissipation member 21 and the second heat conduction member 23. The second heat conduction member 23 and the second heat dissipation member 21 are respectively disposed opposite to the second substrate 22, which is more advantageous for longitudinal conduction of heat. It is understood that the second heat conduction member 23 may be disposed according to the actual heat position, for example, the second heat conduction member 23 is disposed on the side edge of the second substrate 22, or the second heat conduction member 23 is disposed on the same side of the second heat dissipation member 21, and the above arrangement is within the scope of the present invention as long as the technical effect of the heat conduction is not affected.
It is understood that the first heat dissipating assembly 10 and the second heat dissipating assembly 20 may be identical or different in structure and/or size.
Further, the first heat-conducting member 13 and the second heat-conducting member 23 are respectively configured to contact an external heat-generating source, and conduct and collect heat between the first heat-dissipating member 11 and the second heat-dissipating member 21.
In one embodiment, the end surface of the first heat conduction portion 131 away from the first heat dissipation member 11 is provided with the heat conduction unit 50, and the end surface of the third heat conduction portion 231 away from the second heat dissipation member 21 is provided with the heat conduction unit 50. The heat conducting unit 50 is directly contacted with the heat source, so as to better conduct the heat from the heat source, and the heat conducting unit 50 can be attached or glued on the end surface of the heat conducting part.
Preferably, the heat conductive unit 50 is selected from at least one of heat conductive silicone grease, heat conductive mud, and heat conductive pad.
Further, the first heat dissipation member 11 and the second heat dissipation member 21 are disposed opposite to each other and spaced apart from each other, the fan 30 is accommodated between the first heat dissipation member 11 and the second heat dissipation member 21, and the fan 30 is disposed opposite to at least a portion of the first heat dissipation member 11 and the second heat dissipation member 21 and is capable of cooling the first heat dissipation assembly 10 and the second heat dissipation assembly 20.
Referring to fig. 2 in particular, in one embodiment, the first heat dissipation element 11 and/or the second heat dissipation element 21 have heat dissipation ends distributed in a step shape, that is, at least one of the first heat dissipation element 11 and the second heat dissipation element 21 is provided in a step shape, and preferably, both the first heat dissipation element 11 and the second heat dissipation element 21 are provided in a step shape.
Further, the first heat sink 11 includes a first heat sink portion 111 and a second heat sink portion 112, and the second heat sink 21 includes a third heat sink portion 211 and a fourth heat sink portion 212, wherein the height of the first heat sink portion 111 is greater than the height of the second heat sink portion 112, the height of the third heat sink portion 211 is greater than the height of the fourth heat sink portion 212, and the first heat sink portion 111 and the third heat sink portion 211 are disposed opposite to each other and spaced apart from each other.
Preferably, the first heat sink member 111 and the third heat sink member 211 have equal cross-sectional areas and are arranged correspondingly.
The heat dissipation parts of the first heat dissipation part 11 and the second heat dissipation part 21 are set to be step-shaped according to the flow path of the flow field, wherein the first heat dissipation part 111 and the third heat dissipation part 211 which are higher are used as main heat dissipation parts, the second heat dissipation part 112 and the fourth heat dissipation part 212 which are lower are used as auxiliary heat dissipation parts, the second heat dissipation part 112 and the fourth heat dissipation part 212 are also arranged oppositely, enough accommodation space can be reserved for arranging the fan 30, the arrangement mode is reasonable and compact in space utilization, and heat exchange thermal resistance during heat convection can be effectively reduced.
The preferred embodiment only illustrates the heat dissipation part having two steps, it is understood that the heat dissipation part may include more than two steps, such as three steps, four steps or more, and the number of steps is not limited in the preferred embodiment.
Referring to fig. 3, in one embodiment, a longitudinal gap is formed between the first heat sink member 111 and the third heat sink member 211. The first heat dissipation part 111 and the third heat dissipation part 211 are separated from each other through a fault and are not in contact with each other, so that mutual influence of heat from different heat sources in a heat dissipation process can be better prevented.
Further, the ratio between the heights of the first heat sink portion 111 and the third heat sink portion 211 can be distributed and adjusted according to the heat ratio of each heat source, generally speaking, the height of the heat sink portion on the side with larger heat is also higher, so that the heat sink portion has a larger heat dissipation area to meet the heat dissipation requirement of the heat sink portion, and thus, more uniform and efficient heat dissipation between the heat sources can be ensured.
Similarly, the width of the heat dissipation portion may be adjusted according to the heat rate of each heat source, and the width of the heat dissipation portion is set to be wider on the side where the heat is larger.
Referring to fig. 4, in one embodiment, the first heat sink portion 111 includes a plurality of first fins 111a arranged at intervals, the third heat sink portion 211 includes a plurality of second fins 211a arranged at intervals, the first fins 111a and the second fins 211a are at least partially overlapped in a longitudinal direction and are embedded into each other, and a transverse gap is formed between each first fin 111a and each second fin 211 a. The two heat dissipation parts are separated from each other through the gap and are not in contact with each other, so that mutual influence of heat from different heat sources in the heat dissipation process can be better blocked. It is understood that the heat dissipation portion may include, but is not limited to, heat dissipation fins.
Furthermore, the width of each radiating fin and the gap between the radiating fins can be distributed and adjusted according to the heat proportion of each heat source, namely the sparsity of the radiating fins can be adjusted and controlled according to actual requirements.
The two modes of forming the gap are used for realizing 'common-cavity separated heat dissipation'.
Further, the first heat-conducting member 13 and/or the second heat-conducting member 23 have heat radiating ends distributed in a step shape.
In one embodiment, the first heat conduction member 13 includes a first heat conduction portion 131 and a second heat conduction portion 132, and the second heat conduction member 23 includes a third heat conduction portion 231 and a fourth heat conduction portion 232, wherein the height of the first heat conduction portion 131 is greater than that of the second heat conduction portion 132, the height of the third heat conduction portion 231 is greater than that of the fourth heat conduction portion 232, and the first heat conduction portion 131 and the third heat conduction portion 231 are respectively in contact with an external heat source. The heat on the heat source is conducted to the first heat conduction part 131 and the third heat conduction part 231 through the heat conduction unit 50 with the higher height, the heat is laterally diffused on the first heat conduction part 131 and the third heat conduction part 231 respectively, and because the second heat conduction part 132 and the first heat dissipation part 111 are arranged correspondingly, the fourth heat conduction part 232 and the third heat dissipation part 211 are arranged correspondingly, the heat is further transmitted to the first heat dissipation part 111 and the third heat dissipation part 211 through the second heat conduction part 132 and the fourth heat conduction part 232, so that the thermal resistance between the heat source and the heat dissipation part can be reduced, and the heat dissipation effect is enhanced.
In one embodiment, the heat dissipation mechanism 100 further includes a first housing 60 and a guiding element 40, the first housing 60 is used for fixing and carrying the first heat dissipation assembly 10, the second heat dissipation assembly 20 and the fan 30, and the first housing 60 is respectively provided with an air inlet 61 and an air outlet 62 along the airflow direction of the fan 30. Preferably, the flow guide 40 has a plate shape and is disposed relatively close to the air inlet 61. The number of the flow guide members 40 is two, and the flow guide members are respectively provided at both sides of the blower 30. Specifically, one ends of the two flow guiding members 40 are respectively connected to the second heat dissipating part 112 and the fourth heat dissipating part 212, and the other ends of the two flow guiding members 40 are inwardly gathered along the direction of the air flow, so that the air entering the heat dissipating passage is gathered on the fan 30, thereby improving the heat dissipating efficiency of the fan 30.
In the preferred embodiment, the fan 30 is selected from at least one of a piezoelectric fan, an axial fan, and a centrifugal fan.
Further, referring to fig. 5, which is a schematic view of the piezoelectric fan in a working state, the piezoelectric fan generates periodic extension and contraction after being powered on, so as to excite the fan blade 31 to vibrate. The piezoelectric fan has good temperature resistance, good waterproof and dustproof effects and high reliability, and in addition, the fan blades 31 are small in size and are less affected by space during assembly. Fig. 1 is a schematic diagram of the heat dissipation effect of the fan 30 using a piezoelectric fan.
Referring to fig. 6, which is a schematic structural diagram of the fan 30 in one embodiment, the fan 30 includes more than one fan blade 31, and the fan blades 31 are uniformly distributed at intervals to provide a better lateral flow equalizing effect. After entering the heat dissipation cavity, the air can uniformly converge air flow into each channel under the excitation of the fan 30, thereby eliminating transverse heat dissipation dead zones and ensuring transverse homogenization of a flow field. The fan 30 is powered by a power source when in use.
Please refer to fig. 7, which is a schematic structural diagram of an axial fan as a fan 30. The axial flow fan can blow air to the fin end and can also suck air from the fin end. The axial flow fan occupies a smaller size in the transverse direction, and a larger space can be reserved for arranging the radiating fins; in addition, a plurality of axial flow fans are conveniently and transversely arranged to be used, and the requirement of occasions with high air volume requirements is met.
Fig. 8 is a schematic structural diagram of a fan 30 using a centrifugal fan. The centrifugal fan can provide higher wind pressure and can meet the requirement of occasions with higher flow resistance. In the proposal, the centrifugal fan can select a single-side air inlet type or a double-side air inlet type, but the double-side air inlet type is preferred in order to simultaneously consider the heat dissipation of heat sources at two ends. In addition, the centrifugal fan is small in longitudinal size, and a plurality of centrifugal fans can be connected in parallel in the heat dissipation cavity for use.
In one embodiment, the fan blades 31 of the fan 30 may be rectangular, as shown in FIG. 9, or irregular, as shown in FIG. 10, or irregular with a flange 311, as shown in FIGS. 11 and 12, wherein the flange 311 is generally saw-toothed. The number of the serrated flanges 311 is set to be at least one, and the multi-stage flanges 311 are formed, and the multi-stage flanges 311 are uniformly arranged at intervals along the length direction of the fan blade 31. The fan blade 31 with the flange 311 can promote part of air to diffuse towards two sides when vibrating, so as to generate better longitudinal flow equalizing effect. It is understood that the shape of the fan blade 31 can also be other shapes, such as a trapezoid, and is not limited herein.
The flange 311 is arranged on the fan blade 31, so that the heat dissipation channel has a good flow equalizing effect in the horizontal direction and the longitudinal direction, and can also be understood as three-dimensional flow equalizing.
Referring to fig. 13, in one embodiment, the fan blade 31 of the fan 30 extends and is embedded inside the first heat dissipation member 11 and/or the second heat dissipation member 21. In the preferred embodiment, the first heat dissipation element 11 and/or the second heat dissipation element 21 have heat dissipation fins inside, and the fan blades 31 directly vibrate and disturb the flow inside the heat dissipation fins, so that not only are the heat dissipation areas of the heat dissipation fins diffused, but also the inside of the heat dissipation fins has a better flow rate, a boundary layer is damaged, and the heat dissipation is enhanced.
Referring to fig. 14, in one embodiment, the number of the fans 30 is two or more, and the fans are arranged in parallel, so that a better horizontal and vertical flow equalizing effect can be achieved, and the two or more fans 30 are connected in parallel, so that the total air intake can be increased, and the heat dissipation effect can be further enhanced.
The embodiment can not only concentrate the heat on each heat source on the airflow channel to realize concentrated enhanced heat dissipation, but also avoid the mutual influence among the heat of each heat source, and has higher heat dissipation efficiency.
One embodiment of the present invention provides an industrial camera 200, which has a high signal-to-noise ratio and a high pixel value, thus having a wide application, a fast scanning speed, and a small volume. The conventional industrial camera generally comprises a lens, an image sensor, an image processor and other components, and the quality of the imaging quality of the conventional industrial camera depends on the parameter index of the image sensor, the performance of the image processor and other factors, wherein the thermal noise of the surrounding environment seriously affects the imaging quality. Therefore, it is necessary to control the temperature inside the industrial camera 200 so that the heat on the heat source can be better dissipated.
Generally, the image sensor and the image processor serve as heat sources inside the industrial camera, and further, the industrial camera is powered by a power supply during operation, and also generates heat, but the heat is small relative to the heat generated by the image sensor and the image processor.
Referring to fig. 15 and 16, fig. 15 is a schematic structural view of an industrial camera according to a preferred embodiment, and fig. 16 is a sectional view along a-a direction after an internal structure is shown on the industrial camera of fig. 15. Specifically, the industrial camera 200 of the preferred embodiment includes a second housing 201, a control board 202, a sensing board 203, a lens assembly 204, and a power board 205, and further includes the heat dissipation mechanism 100, further, a first chamber 2011, a second chamber 2012, and a third chamber 2013 are formed in the second housing 201, the second chamber 2012 is located between the first chamber 2011 and the third chamber 2013, and the heat dissipation mechanism 100 is accommodated in the second chamber 2012.
Further, the induction board 203 is disposed in the first chamber 2011, the induction board 203 faces the first heat sink assembly 10, and can radiate heat into the second chamber 2012 through the first heat sink assembly 10; the control board 202 is disposed in the third chamber 2013, and the control board 202 faces the second heat sink assembly 20 and can dissipate heat into the second chamber 2012 through the second heat sink assembly 20.
Further, the first housing 60 and the second housing 201 are integrally formed, the second chamber 2012 is formed in the second housing 201, and the air inlet 61 and the air outlet 62 are respectively opened on the side wall of the second housing 201. The air inlet 61 and the air outlet 62 are arranged in the second chamber 2012, an air flow channel is formed between the air inlet 61 and the air outlet 62, and the fan 30 is at least partially positioned in the air flow channel. The air flow enters from the air inlet 61, is excited by the fan 30, and flows in the first heat sink portion 111 and the third heat sink portion 211, so that the heat gathered therein is subjected to convection or heat radiation, and flows out through the air outlet 62, so as to achieve convection cooling inside the second chamber 2012.
In order to better realize the heat dissipation of the internal heat source of the industrial camera 200, in one embodiment, the heat conducting unit 50 is filled between the induction plate 203 and the inner wall of the first cavity 2011, so that the induction plate 203 can not only dissipate heat through the heat dissipation mechanism 100 inside the second cavity 2012, but also perform auxiliary heat dissipation outside the second housing 201 through the first cavity 2011.
Further, the heat conducting unit 50 is also filled between the control board 202 and the inner wall of the third chamber 2013, so that the control board 202 can not only dissipate heat through the heat dissipation mechanism 100 inside the second chamber 2012, but also perform auxiliary heat dissipation outside the second housing 201 through the third chamber 2013.
Also, the heat conductive unit 50 is selected from at least one of heat conductive silicone grease, heat conductive mud, and heat conductive pad.
In one embodiment, the lens assembly 204 is mounted at one end of the second housing 201 close to the sensing board 203, the power board 205 is disposed at one end of the second housing 201 far from the sensing board 203, and the heat conducting unit 50 is filled between the power board 205 and the inner wall of the second housing 201.
In one embodiment, a heat dissipating unit 2014 is disposed at an end of the second housing 201 close to the power board 205, and the heat dissipating unit 2014 is configured to dissipate heat in the second housing 201 to the outside of the second housing 201. The heat dissipating unit 2014 may include, but is not limited to, heat dissipating fins.
In the industrial camera 200 provided by the present invention, there is not only a union but also an intersection between the heat dissipation areas: when the power consumption distribution of each heat source is uniform, the partitioned heat dissipation can be realized by depending on the respective main heat dissipation areas, and when the power consumption distribution of each heat source is nonuniform, the heat source with insufficient heat dissipation can be assisted by other areas for heat dissipation, so that the partitioned cooperative heat dissipation is realized, each heat dissipation path can be utilized in a cooperative mode in an all-round manner, the whole machine is ensured not to have heat dissipation dead angles, and the good temperature equalizing effect is achieved.
In addition, the second chamber 2012 is used as a main heat dissipation chamber, and adopts a common-chamber separated type heat dissipation, so that the heat of the main heat source is gathered together and is used as a common air flow channel, and the heat dissipation modes are relatively independent and do not affect each other. The heat dissipation piece and the heat conduction piece in the heat dissipation cavity can be arranged in a step shape according to the heat conduction path and the flow path of the flow field, the cavity space of the heat dissipation cavity can be reasonably utilized, and the thermal resistance of heat conduction and convective heat transfer is reduced.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (17)

1. A heat dissipation mechanism (100) is used for dissipating heat of more than one heat source and is characterized by comprising a first heat dissipation component (10), a second heat dissipation component (20) and a fan (30);
the first heat dissipation assembly (10) comprises a first heat dissipation part (111) and a second heat dissipation part (112), the second heat dissipation assembly (20) comprises a third heat dissipation part (211) and a fourth heat dissipation part (212), the height of the first heat dissipation part (111) is larger than that of the second heat dissipation part (112), the height of the third heat dissipation part (211) is larger than that of the fourth heat dissipation part (212), and the fan (30) is at least partially accommodated between the second heat dissipation part (112) and the fourth heat dissipation part (212) and can cool the first heat dissipation assembly (10) and the second heat dissipation assembly (20).
2. The heat dissipation mechanism (100) of claim 1, wherein the first heat dissipation portion (111) is disposed opposite to and spaced apart from the third heat dissipation portion (211).
3. The heat dissipation mechanism (100) of claim 2, wherein the first heat sink piece (111) and the third heat sink piece (211) have a longitudinal gap therebetween.
4. The heat dissipation mechanism (100) of claim 2, wherein the first heat dissipation portion (111) comprises a plurality of first fins (111a) arranged at intervals, the third heat dissipation portion (211) comprises a plurality of second fins (211a) arranged at intervals, the first fins (111a) and the second fins (211a) at least partially overlap longitudinally, and a transverse gap is formed between each first fin (111a) and each second fin (211 a).
5. The industrial camera heat dissipation structure of claim 1, wherein the fan (30) comprises more than one fan blade (31), the fan blade (31) is provided with at least one saw-tooth-shaped flange (311), and the saw-tooth-shaped flanges (311) are arranged at intervals along the length direction of the fan blade (31).
6. The industrial camera heat dissipation structure according to claim 1, wherein the fan (30) comprises one or more fan blades (31), the fan blades (31) extending to an interior of the first heat dissipation member (11) and/or the second heat dissipation member (21).
7. The heat dissipation mechanism (100) according to claim 1, wherein the heat dissipation mechanism (100) further comprises a first housing (60) for fixing and carrying the first heat dissipation assembly (10), the second heat dissipation assembly (20) and the fan (30), and the first housing (60) is provided with an air inlet (61) and an air outlet (62) along an airflow direction of the fan (30), respectively.
8. The heat dissipation mechanism (100) of claim 7, wherein the heat dissipation mechanism (100) further comprises a flow guide (40), the flow guide (40) being disposed relatively close to the air inlet (61).
9. The heat dissipation mechanism (100) of claim 1, wherein the first heat dissipation assembly (10) further comprises a first substrate (12) and a first heat conductive member (13), the second heat dissipation assembly (20) further comprises a second substrate (22) and a second heat conductive member (23), the first heat conductive member (13) and the first heat dissipation portion (111) are respectively disposed opposite to the first substrate (12), and the second heat conductive member (23) and the third heat dissipation portion (211) are respectively disposed opposite to the second substrate (22).
10. The heat dissipation mechanism (100) according to claim 9, wherein the first heat conduction member (13) comprises a first heat conduction portion (131) and a second heat conduction portion (132), and the second heat conduction member (23) comprises a third heat conduction portion (231) and a fourth heat conduction portion (232), wherein the height of the first heat conduction portion (131) is greater than the height of the second heat conduction portion (132), the height of the third heat conduction portion (231) is greater than the height of the fourth heat conduction portion (232), and the first heat conduction portion (131) and the third heat conduction portion (231) are respectively configured to contact with an external heat source.
11. The heat dissipation mechanism (100) according to claim 10, wherein the second heat conduction portion (132) is provided in correspondence with the first heat dissipation portion (111), and the fourth heat conduction portion (232) is provided in correspondence with the third heat dissipation portion (211).
12. The heat dissipating mechanism (100) of claim 10, wherein the end surface of the first heat conducting portion (131) away from the first heat dissipating portion (111) is provided with a heat conducting unit (50), and the end surface of the third heat conducting portion (231) away from the third heat dissipating portion (211) is provided with a heat conducting unit (50).
13. The heat dissipation mechanism (100) of claim 12, wherein the heat conducting unit (50) is selected from at least one of a heat conducting silicone grease, a heat conducting mud, and a heat conducting pad.
14. An industrial camera (200) comprising a second housing (201), a control board (202) and an induction board (203), characterized by further comprising a heat dissipation mechanism (100) according to any one of claims 1 to 12, wherein:
a first cavity (2011), a second cavity (2012) and a third cavity (2013) are formed in the second shell (201), the second cavity (2012) is located between the first cavity (2011) and the third cavity (2013), and the heat dissipation mechanism (100) is accommodated in the second cavity (2012);
the induction plate (203) is arranged in the first chamber (2011), the induction plate (203) is arranged towards the first heat dissipation assembly (10) and can dissipate heat into the second chamber (2012) through the first heat dissipation assembly (10);
the control board (202) is arranged in the third chamber (2013), the control board (202) faces the second heat dissipation assembly (20), and heat can be dissipated into the second chamber (2012) through the second heat dissipation assembly (20).
15. The industrial camera (200) according to claim 13 or 14, characterized in that a heat conducting unit (50) is filled between the induction board (203) and the inner wall of the first chamber (2011), and a heat conducting unit (50) is also filled between the control board (202) and the inner wall of the third chamber (2013).
16. The industrial camera (200) as claimed in claim 13, further comprising a lens assembly (204) and a power board (205), wherein the lens assembly (204) is mounted at an end of the second housing (201) close to the sensing board (203), the power board (205) is disposed at an end of the second housing (201) far away from the sensing board (203), and a heat conducting unit (50) is filled between the power board (205) and an inner wall of the second housing (201).
17. The industrial camera (200) according to claim 16, wherein a heat dissipating unit (2014) is disposed at an end of the second housing (201) close to the power board (205), and the heat dissipating unit (2014) is configured to dissipate heat in the second housing (201) to the outside of the second housing (201).
CN201910892785.0A 2019-09-20 2019-09-20 Heat dissipation mechanism and industrial camera Active CN110703541B (en)

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