Air-cooled cameras

Abstract

The present application discloses an air-cooled camera, which includes a coaxial inner shell and outer shell, and the two ends of the annular space between the inner shell and the outer shell are respectively sealed with a first flange and a second flange, so that a first accommodating space is formed between the inner shell and the outer shell; the front cover assembly is plugged into the plug-in part of the outer shell, and the plug-in ring of the front cover assembly is radially concave with an accommodating groove, and the accommodating groove and the plug-in part form a second accommodating space; the first accommodating space and the second accommodating space are connected through the air outlet hole of the first flange and the through air hole of the front cover assembly mounting panel, and the second flange at the rear of the camera is provided with an air inlet hole, so that the air-cooled medium can flow through the first accommodating space and the second accommodating space in sequence from the air inlet hole, and blow the shooting window on the mounting panel through the air curtain slot on the bottom plate of the second accommodating space. The structure is simple and the installation and assembly are convenient; in addition, negative pressure phenomenon can be avoided in the shooting window, and the cooling and dust removal effects are good.

Description

Technical Field

[0001] The present invention relates to the technical field of cameras, and in particular to an air-cooled camera. Background Art

[0002] In some special environments with high ambient temperature, ordinary cameras are not suitable, and high-temperature protection cameras are needed at this time.

[0003] High-temperature protection cameras can isolate and absorb heat from high ambient temperatures through air cooling or water cooling to protect the electronic components inside the camera.

[0004] However, existing high-temperature protection cameras are complex to assemble and have high costs. Summary of the Invention

[0005] In view of this, an embodiment of the present application provides an air-cooled camera, which has a simple assembly structure, good air-cooling cooling effect, and is easy to install and use.

[0006] An embodiment of the present application provides a camera, comprising:

[0007] An inner shell and an outer shell extending along a first direction and coaxially arranged, the outer shell being fitted over the inner shell, the inner shell and the outer shell being opened at both ends along the first direction, wherein the first direction is the length direction of the camera;

[0008] a first flange and a second flange provided between the inner shell and the outer shell, wherein the first flange and the second flange are respectively located at two ends of the inner shell along the first direction, and the first flange and the second flange respectively seal the annular space between the inner shell and the outer shell, so as to form an annular first accommodating space between the inner shell and the outer shell;

[0009] A front cover assembly plugged into the housing, wherein the front cover assembly is plugged into a plug-in portion of the housing that protrudes axially from the first flange;

[0010] The front cover assembly includes a mounting panel perpendicular to the first direction, the mounting panel being provided with at least a shooting window, a plug-in ring extending along the first direction at a circumferential end portion of the mounting panel on a side of the mounting panel facing away from the first flange, a portion of the plug-in ring located above the shooting window being radially inwardly recessed to form an accommodating groove, a bottom plate of the accommodating groove being provided with an air curtain groove, the bottom plate and the air curtain groove extending along a second direction, the second direction being the width direction of the camera;

[0011] Wherein, when the front cover assembly is plugged and installed with the housing, the plug-in ring is used to circumferentially abut against the plug-in portion, and the accommodating groove is used to form a second accommodating space between the accommodating groove and the plug-in portion;

[0012] Furthermore, along the first direction, the second flange is provided with an air inlet through-hole, the first flange is provided with an air outlet through-hole, and the mounting panel is provided with a through-hole, the through-hole extending from a side of the mounting panel toward the first flange to the accommodating groove, the through-hole being coaxially arranged with the air outlet through-hole;

[0013] When the front cover assembly is plugged and installed with the plug-in part, the air-cooling medium flows from the air inlet hole through the first accommodating space and the second accommodating space in sequence, and blows the shooting window through the air curtain slot.

[0014] In one embodiment, preferably, the radial inner end and the radial outer end of the first flange are welded to the inner shell and the outer shell respectively;

[0015] The radial inner end and the radial outer end of the second flange are welded to the inner shell and the outer shell respectively;

[0016] The mounting panel is provided with screw through holes arranged along the first direction, so that the mounting screws pass through the screw through holes and fasten the mounting panel to the first flange.

[0017] In one embodiment, preferably, in the annular cross-section of the second flange, the air inlet hole is located in the middle of the arc-shaped cross-section portion at the lower end of the shooting window.

[0018] In one embodiment, preferably, the housing is a cylindrical sleeve extending along the first direction;

[0019] The inner shell includes a first flat plate and a second flat plate arranged opposite to each other, the first flat plate and the second flat plate extending along the first direction, the first flat plate and the second flat plate being perpendicular to a third direction, the third direction being the height direction of the camera, the first flat plate and the second flat plate being connected to form a circumferentially closed sleeve shape by a pair of arc-shaped walls extending along the first direction, so that the outer surfaces of the first flat plate and the second flat plate form a guide plane for the air-cooling medium.

[0020] In one embodiment, preferably, a diverter plate is provided in the first accommodating space at a position close to the air inlet hole along the first direction, the diverter plate is arranged perpendicular to the first direction, and the diverter plate is located in an arc-shaped cross-sectional portion of the annular cross-section of the first accommodating space opposite to the lower end of the shooting window;

[0021] Furthermore, the diverter plate is provided with a plurality of diverter holes, and the plurality of diverter holes are arranged along the second direction;

[0022] So that the air-cooling medium is evenly distributed in the annular cross-section of the first accommodating space.

[0023] In one embodiment, preferably, in the annular cross-section of the first flange, the air outlet hole is located in the middle of the arc-shaped cross-section portion at the upper end of the shooting window.

[0024] In one embodiment, preferably, an air guide plug is inserted into the accommodating groove, and the air guide plug includes an arc-shaped cover, wherein a first side wall of the arc-shaped cover extends along a third direction on a side close to the first flange, and a second side wall of the arc-shaped cover extends along the third direction on another side away from the first flange, so that the air guide plug is arranged in an open shape at one end facing the base plate, and the third direction is a height direction of the camera;

[0025] Furthermore, when the air guide plug is plugged into the accommodating groove, the arc-shaped cover is used to abut against the plug-in portion, and the first side wall is provided with an avoidance gap to avoid the through air hole.

[0026] In one embodiment, preferably, an air guide fillet is provided on the inner side of the second side wall and at a position corresponding to the center axis of the through air hole, so that the air-cooling medium flowing from the through air hole into the air guide plug-in is guided to the air curtain slot through the air guide fillet.

[0027] In one embodiment, preferably, a plurality of guide ribs extending along the third direction are provided on the inner side of the second side wall and in an area away from the arc-shaped cover;

[0028] Among them, several of the guide ribs are arranged in parallel, and the heights of the several guide ribs are gradually increased from the middle to both sides.

[0029] In one embodiment, preferably, the bottom plate is provided with a positioning rib, and the end of the air guide plug-in facing the bottom plate is provided with a positioning groove for the positioning rib to be inserted into.

[0030] In one embodiment, preferably, the base plate is perpendicular to the mounting panel, and the circumferential wall of the base plate forming the air curtain groove is inclined relative to a third direction, and the third direction is the height direction of the camera, so as to guide the air-cooling medium to be sprayed onto the shooting window.

[0031] In one embodiment, preferably, the interior of the inner housing is used to carry the lens assembly, the circuit board assembly and the heat dissipation plate;

[0032] Wherein, the lens assembly is mounted on a side of the mounting panel facing the first flange;

[0033] The heat dissipation plate extends along the first direction and is fixedly mounted on the inner side of the inner shell, and the heat dissipation plate is used to support the circuit board assembly;

[0034] A rear cover assembly is fixedly mounted on the outer end of the second flange, and the rear cover assembly is used to close the end of the housing.

[0035] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0036] An embodiment of the present application provides an air-cooled camera, which includes a coaxial inner shell and outer shell, and the two ends of the annular space between the inner shell and the outer shell are respectively sealed with a first flange and a second flange, so that a first accommodating space is formed between the inner shell and the outer shell; then, the front cover assembly is plugged into the plug-in part of the outer shell, and the plug-in ring of the front cover assembly is radially concave with an accommodating groove, and the accommodating groove and the plug-in part of the outer shell form a second accommodating space; and the first accommodating space and the second accommodating space are connected through the air outlet hole of the first flange and the through air hole of the front cover assembly mounting panel, and the second flange at the rear of the camera is provided with an air inlet hole, so that the air-cooled medium can flow through the first accommodating space and the second accommodating space in sequence from the air inlet hole, and blow the shooting window on the mounting panel through the air curtain slot on the bottom plate of the second accommodating space. The structure is simple and the installation and assembly are convenient.

[0037] In addition, the bottom plate of the above-mentioned second accommodating space and the air curtain slots on the bottom plate extend along the width direction of the camera, so that the air-cooling medium (also the blowing medium) can be blown from the upper part of the shooting window to cool it down, thereby avoiding negative pressure in the shooting window and achieving good cooling and dust removal effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0039] Figure 1 This is a cross-sectional view of the assembled inner housing, outer housing, and two flanges of an air-cooled camera.

[0040] Figure 2 for Figure 1 Side cross-sectional structural diagram.

[0041] Figure 3 for Figure 1 Cross-sectional view at the first flange.

[0042] Figure 4 for Figure 1 Cross-sectional view at the second flange.

[0043] Figure 5 for Figure 1 Cross-sectional view at the middle manifold.

[0044] Figure 6 It is a structural diagram of the front cover assembly.

[0045] Figure 7 Front view of the panel side with the front cover assembly installed.

[0046] Figure 8 for Figure 6 side sectional view of .

[0047] Figure 9 for Figure 8 A partial enlarged view of .

[0048] Figure 10 for Figure 8 Schematic diagram of the top view structure.

[0049] Figure 11 This is a schematic diagram of the structure of the air guide plug-in for an air-cooled camera.

[0050] Figure 12 This is an exploded view of the air-cooled camera assembly.

[0051] Figure 13 for Figure 12 Schematic diagram of the half-section structure after assembly.

[0052] Wherein, the reference numerals:

[0053] 10-inner shell, 11-first flat plate, 12-second flat plate, 13-arc wall,

[0054] 20-housing, 21-connection part,

[0055] 30-first flange, 31-air outlet hole, 32-positioning hole,

[0056] 40-second flange, 41-air inlet hole,

[0057] 50-front cover assembly, 51-installation panel, 52-plug ring, 53-accommodation groove, 54-bottom plate, 55-air curtain slot, 56-positioning rib,

[0058] 511-shooting window, 512-fill light window, 513-through air hole, 514-screw hole, 515-positioning column,

[0059] 551-long side, 552-short side,

[0060] 60-diversion plate, 61-diversion hole,

[0061] 70-air guide plug-in, 71-first side wall, 72-second side wall, 73-arc cover, 74-avoidance gap, 75-air guide fillet, 76-guide rib, 77-positioning groove,

[0062] 761-low guide rib, 762-high guide rib,

[0063] 91-lens assembly, 92-circuit board assembly, 93-heat sink, 94-back cover assembly, 95-threading tube,

[0064] 100- first accommodation space,

[0065] 200- second accommodation space,

[0066] X-first direction, Y-second direction, Z-third direction. DETAILED DESCRIPTION

[0067] In order to better understand the above technical solutions, example embodiments of the present application will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited to the exemplary embodiments described herein.

[0068] A camera is an air-cooled camera, which includes an inner shell 10 and an outer shell 20 extending along a first direction X and coaxially arranged, a first flange 30 and a second flange 40 arranged between the inner shell 10 and the outer shell 20, and a front cover assembly 50 inserted into the outer shell 20.

[0069] The outer shell 20 is placed outside the inner shell 10, and the inner shell 10 and the outer shell 20 are opened at both ends along the first direction X. Along the first direction X, the first flange 30 and the second flange 40 are respectively located at both ends of the inner shell 10, and the first flange 30 and the second flange 40 respectively seal the annular space between the inner shell 10 and the outer shell 20, so that an annular first accommodating space 100 is formed between the inner shell 10 and the outer shell 20.

[0070] The front cover assembly 50 is plugged into the plug-in portion 21 of the outer shell 20 that protrudes axially from the first flange 30; wherein, the front cover assembly 50 includes a mounting panel 51 perpendicular to the first direction X, and the mounting panel 51 is provided with at least a shooting window 511. On the side of the mounting panel 51 facing away from the first flange 30, a plug-in ring 52 is extended at the circumferential end portion of the mounting panel 51 along the first direction X. The portion of the plug-in ring 52 located at the upper end of the shooting window 511 is formed with a accommodating groove 53 by radially inward concave. The bottom plate 54 of the accommodating groove 53 is provided with an air curtain groove 55. The bottom plate 54 and the air curtain groove 55 extend along the second direction Y, and the second direction Y is the width direction of the shooting window 511. wherein, when the front cover assembly 50 is plugged and installed with the outer shell 20, the plug-in ring 52 is used to circumferentially abut against the plug-in portion 21, and the accommodating groove 53 is used to form a second accommodating space 200 between the plug-in portion 21.

[0071] Moreover, along the first direction X, the second flange 40 is provided with an air inlet hole 41, the first flange 30 is provided with an air outlet hole 31, and the mounting panel 51 is provided with a through air hole 513. The through air hole 513 extends from the mounting panel 51 toward the side of the first flange 30 to the accommodating groove 53, and the through air hole 513 is coaxially arranged with the air outlet hole 31; so that when the front cover assembly 50 is plugged and installed with the plug-in part 21, the air-cooling medium flows from the air inlet hole 41 through the first accommodating space 100 and the second accommodating space 200 in sequence, and blows the shooting window 511 through the air curtain slot 55.

[0072] The camera of this embodiment specifically relates to an air-cooled camera, which includes an inner shell, an outer shell, a first flange, a second flange, and a front cover assembly; wherein the first direction X is the length direction of the air-cooled camera, the second direction Y is the width direction of the air-cooled camera, and the third direction Z is the height direction of the air-cooled camera; for convenience of description, when the air-cooled camera is placed horizontally, the first direction X is a horizontal direction, the width direction of the air-cooled camera (i.e., the second direction Y) is another horizontal direction perpendicular to the first direction X, and the height direction of the air-cooled camera (i.e., the third direction Z) is a vertical direction.

[0073] Regarding the inner shell and outer shell, see Figure 1 The inner shell and the outer shell are, for example, both cylindrical with openings at both ends. The inner shell and the outer shell are coaxially arranged, and the outer shell is placed outside the inner shell. In this way, an annular space is formed between the inner shell and the outer shell, and extends along the first direction (i.e., the axial direction of the inner shell and the outer shell).

[0074] For the first flange and the second flange, please refer to Figure 1 、 Figure 2 , along the two ends of the first direction, a first flange and a second flange are respectively provided between the inner shell and the outer shell, for example, the front end of the camera is the first flange, and the rear end of the camera is the second flange, and the two flanges respectively seal the annular space between the inner shell and the outer shell. It can be understood that, in this way, a first annular accommodating space can be formed between the inner shell and the outer shell through the sealing of the two flanges.

[0075] Among them, regarding the front cover assembly, first refer to Figure 1 At one end where the first flange is installed, the housing includes a plug-in portion 21 axially protruding from the first flange. The plug-in portion is a circumferential wall of the housing with a certain width. The plug-in portion is used for plugging and installing the front cover assembly.

[0076] Then see Figures 6 to 10 The front cover assembly includes a mounting panel, which is, for example, in a circular shape perpendicular to the first direction. The mounting panel is used to mount the lens assembly, etc. Thus, a shooting window 511 is provided in, for example, the middle area of ​​the mounting panel. Of course, a fill light window 512 can also be provided at the lower end of the shooting window.

[0077] For details, please refer to Figure 8 On the side of the mounting panel facing away from the first flange, a plug-in ring extends along the first direction at the circumferential end of the mounting panel. The portion of the plug-in ring located above the shooting window is radially recessed to form a receiving groove 53. The bottom plate 54 of the receiving groove extends along the second direction (i.e., the width direction of the camera) and is provided with an air curtain slot 55 also extending along the second direction. In other words, in the area above the shooting window, the front cover assembly forms a receiving groove by radially recessing the plug-in ring, and the upper end of the receiving groove is open.

[0078] In this way, combined Figure 13 When the front cover assembly is plugged into the plug-in part of the shell, the mounting panel can axially abut against the first flange, the plug-in ring can circumferentially abut against the abutting part of the shell, and the upper end opening of the accommodating groove is covered by the plug-in part to form a second accommodating space 200.

[0079] Among them, regarding the air intake hole, continue to combine Figure 13 The air inlet hole is provided on the second flange, that is, the second flange provided at the rear of the air-cooled camera; and the first flange is provided with an air outlet hole, and the mounting panel is provided with a through-hole, the through-hole passes through the mounting panel toward the first flange along the first direction to the accommodating groove, and the air outlet hole of the first flange and the through-hole of the mounting panel are coaxially arranged; that is, by arranging the air outlet hole and the through-hole, the first accommodating space and the second accommodating space can be connected; in this way, the air-cooling medium first flows into the first accommodating space from the air inlet hole at the rear of the air-cooled camera, and then flows into the second accommodating space through the air outlet hole and the through-hole in turn, and is sprayed out by the air curtain slot in the second accommodating space. Since the air curtain opening is located at the upper part of the shooting window, the shooting window is blown from the upper part of the shooting window.

[0080] Thus, compared with the circular purge shooting window, the air curtain slots of the air-cooled camera in this embodiment adopt long rectangular purge, which has a large purge area and can significantly improve the negative pressure phenomenon of the shooting window, thereby improving the cooling and dust removal effects on the shooting window.

[0081] In addition, the air-cooled camera of this embodiment has a simple structure and is easy to assemble. For example, the two flanges are first welded to the inner shell, and then the outer shell is sleeved and welded to the two flanges respectively. Finally, the front cover assembly is plugged in and fastened with screws.

[0082] An embodiment of the present application provides an air-cooled camera, which includes a coaxial inner shell and outer shell, and the two ends of the annular space between the inner shell and the outer shell are respectively sealed with a first flange and a second flange, so that a first accommodating space is formed between the inner shell and the outer shell; then, the front cover assembly is plugged into the plug-in part of the outer shell, and the plug-in ring of the front cover assembly is radially concave with an accommodating groove, and the accommodating groove and the plug-in part of the outer shell form a second accommodating space; and the first accommodating space and the second accommodating space are connected through the air outlet hole of the first flange and the through air hole of the front cover assembly mounting panel, and the second flange at the rear of the camera is provided with an air inlet hole, so that the air-cooled medium can flow through the first accommodating space and the second accommodating space in sequence from the air inlet hole, and blow the shooting window on the mounting panel through the air curtain slot on the bottom plate of the second accommodating space. The structure is simple and the installation and assembly are convenient.

[0083] In addition, the bottom plate of the above-mentioned second accommodating space and the air curtain slots on the bottom plate extend along the width direction of the camera, so that the air-cooling medium (also the blowing medium) can be blown from the upper part of the shooting window to cool it down, thereby avoiding negative pressure in the shooting window and achieving good cooling and dust removal effects.

[0084] In one possible implementation, in the annular cross-section of the second flange 40 , the air inlet hole 41 is located in the middle of the arc-shaped cross-section portion at the lower end of the shooting window 511 .

[0085] Specifically, combining Figure 4 , the air intake hole can be located in the arc-shaped cross-sectional portion of the lower half of the second flange; or in other words, the cross-section of the second flange perpendicular to the first direction is annular, and the air intake hole is specifically located in the middle position of the arc-shaped cross-sectional portion at the lower end of the shooting window relative to the mounting panel; that is, at the tail of the air-cooled camera, the air-cooling medium enters the first accommodating space from the lower end of the air-cooled camera.

[0086] See Figure 4 That is, the air inlet hole 41 can be specifically located at the lower end of the second flange and arranged in the center; that is, relative to the camera, the air-cooling medium enters the accommodating space from the lower end of the rear of the camera.

[0087] In one embodiment, combined with Figure 4 The outer shell 20 is a cylindrical sleeve extending along the first direction X; the inner shell 10 includes a first flat plate 11 and a second flat plate 12 arranged opposite to each other, the first flat plate 11 and the second flat plate 12 extending along the first direction X, the first flat plate 11 and the second flat plate 12 are perpendicular to the third direction, and the first flat plate 11 and the second flat plate 12 are connected to each other in a circumferentially closed sleeve shape by a pair of arc-shaped walls 13 extending along the first direction X, so that the outer surfaces of the first flat plate and the second flat plate form a guide plane for the air-cooling medium.

[0088] It can be seen that, unlike the full-circular structure, the upper and lower ends of the inner shell in this embodiment are configured as flat plates extending along the first direction, thereby effectively improving the smooth flow of the cooling medium along the first direction.

[0089] In one embodiment, first, combining Figure 2 The first accommodating space 100 is provided with a diverter plate 60 at a position close to the air inlet hole 41 along the first direction, and the diverter plate 60 is arranged perpendicular to the first direction X; then combined Figure 5 The diverter plate 60 is located in the arc-shaped cross-sectional portion of the annular cross-sectional area of ​​the first accommodating space 100 relative to the lower end of the shooting window 511; and the diverter plate 60 is provided with a plurality of diverter holes 61, which are arranged along the second direction Y; so that the air-cooling medium is evenly distributed in the annular cross-sectional area of ​​the first accommodating space 100.

[0090] That is, in order to achieve better air-cooling, heat insulation and heat dissipation effects, this embodiment further provides a diverter plate in the first accommodating space.

[0091] Combined with Figure 1 、 Figure 2 and Figure 5 The first accommodating space is further provided with a diverter plate, which is arranged perpendicular to the first direction. Considering that the cross section of the first accommodating space perpendicular to the first direction is annular, the diverter plate is an arc-shaped plate with a certain width; and, in the annular cross section of the accommodating space, the diverter plate is located at the arc-shaped cross section portion relative to the lower end of the shooting window; for example, see Figure 5 The diverter plate is semicircular in shape, and the radial inner end and the radial outer end of the diverter plate abut against the inner shell and the outer shell respectively.

[0092] In addition, continue to see Figure 5 The diverter plate is provided with a plurality of diverter holes, and the plurality of diverter holes are arranged along the width direction (ie, the second direction) of the shooting window; for example Figure 5 There are three diversion holes, one of which is in the center and the other two are symmetrically distributed on both sides.

[0093] It can be understood that by arranging the air inlet hole at the lower end of the second flange and arranging a diverter plate in the first accommodating space, the air-cooling medium first flows into the lower end area of ​​the annular first accommodating space from the air inlet hole, and then, due to the obstruction of the diverter plate, part of the air-cooling medium flows upward and flows through the upper end area of ​​the annular first accommodating space, and part of the air-cooling medium will pass through the diverter hole of the diverter plate and continue to flow in the lower end area of ​​the first accommodating space. In this way, the air-cooling medium can be evenly distributed in the annular cross-section of the first accommodating space, thereby improving the air-cooling heat insulation and heat dissipation effects.

[0094] It should be understood that the first accommodating space circulates the air-cooling medium. On the one hand, the air-cooling medium absorbs the heat from the high-temperature environment outside the air-cooled camera to provide insulation for the electronic components inside the air-cooled camera; on the other hand, the air-cooling medium also absorbs the heat generated by the electronic components inside the air-cooled camera to provide heat dissipation.

[0095] It can be seen that in order to achieve better heat conduction from the external high-temperature environment to the air-cooling medium, and from the internal electronic components to the air-cooling medium, the above-mentioned inner shell, outer shell and two flanges usually need to be made of metal materials, while the front cover assembly can be made of high-temperature resistant plastic material for easy processing to reduce costs.

[0096] In one possible implementation, in the annular cross-section of the first flange, the air outlet hole is located in the middle of the arc-shaped cross-section portion at the upper end of the shooting window.

[0097] That is, similar to the air inlet through hole, the air outlet through hole may be located at the upper end of the first flange and arranged in the center.

[0098] In one possible embodiment, the accommodating groove 53 is plugged with an air guide plug-in 70, and the air guide plug-in 70 includes an arc-shaped cover 73, and the arc-shaped cover 73 has a first side wall 71 extending along the third direction Z on the side close to the first flange 30, and a second side wall 72 extending along the third direction Z on the other side of the arc-shaped cover 73 away from the first flange 30, so that the air guide plug-in 70 is arranged in an open shape at one end facing the base plate 54, and the third direction Z is the height direction of the camera; and when the air guide plug-in 70 is plugged into the accommodating groove 53, the arc-shaped cover 73 is used to abut against the plug-in part 21, and the first side wall 71 is provided with an avoidance gap 74 to avoid the through air hole 513.

[0099] From the previous description, it can be seen that after the air-cooling medium flows into the air inlet hole at the rear of the air-cooled camera, it first flows horizontally toward the front end of the air-cooled camera, then turns at the accommodating groove (or the second accommodating space) of the front cover assembly and flows vertically downward through the air curtain slot. In this way, in order to better guide the air-cooling medium at the turning point, this embodiment adds an air guide plug-in.

[0100] Overall, please combine Figure 6 and Figure 11 The air guide plug-in is used to be installed in the accommodating groove of the front cover assembly.

[0101] Specifically, the air guide plug includes an arcuate cover, the shape of which fits the missing portion of the plug ring due to the radial inward concave portion. In this way, when the air guide plug is plugged into the accommodating groove, the arcuate cover can fitly abut the plug-in portion of the shell.

[0102] A first side wall and a second side wall are respectively provided on the front and rear sides of the arc-shaped cover. The two side walls are, for example, arranged in parallel and both extend along a third direction; or, in other words, the two side walls extend along a plane perpendicular to the first direction; in this way, the air guide plug-in is arranged with an open lower end; and, when the air guide plug-in is inserted into the accommodating groove, a first side wall close to the first flange is provided with an avoidance gap to avoid the through air hole, so that the air-cooling medium flows out of the through air hole and then flows into the interior of the air guide plug-in.

[0103] In one embodiment, combined with Figure 11 and Figure 13 An air guide fillet 75 is provided on the inner side of the second side wall 72 and corresponding to the center axis of the through-hole, so that the air-cooling medium flowing into the air guide plug-in from the through-hole is guided to the air curtain slot through the air guide fillet.

[0104] That is, an air guide fillet is provided on the inner side of the second side wall away from the first flange, and the air guide fillet corresponds to the central axis position of the through-hole. Therefore, when the air-cooling medium flows into the air guide plug-in from the through-hole, the air guide fillet can guide the air-cooling medium vertically downward to the air curtain slot and minimize the impact on the wind speed.

[0105] In one embodiment, see Figure 11 and Figure 13 A plurality of guide ribs 76 extending along the third direction Z are provided on the inner side of the second side wall 72 and away from the arc-shaped cover 73; wherein the plurality of guide ribs 76 are arranged in parallel, and the heights of the plurality of guide ribs 76 are gradually increased from the middle to both sides.

[0106] That is, a plurality of parallel arranged guide ribs are provided in the lower area of ​​the inner side of the second side wall away from the first flange, and the height of the guide ribs is low in the middle and high on both sides; for example, see Figure 11 The second side wall is provided with four guide ribs, the two middle ones are low-position guide ribs 761, and the two sides are each a high-position guide rib 762. In this way, by setting the guide ribs, the air-cooling medium can be gathered.

[0107] In addition, return to Figure 6 and Figure 11 The above-mentioned air guide plug-in 70 is provided with a positioning groove 77 at one end facing the bottom plate, and then a positioning rib 56 is provided on the bottom plate to be plugged into the positioning groove. In this way, the air guide plug-in can be specifically installed in the accommodating groove by plugging the positioning rib into the positioning groove.

[0108] In one possible implementation, combining Figures 8 to 10 The bottom plate 54 is perpendicular to the mounting panel 51 , and the circumferential wall of the bottom plate 54 forming the air curtain slot 55 is tilted relative to the third direction (ie, the height direction of the camera) to guide the air-cooling medium to be sprayed onto the shooting window 511 .

[0109] That is, it can be understood that the bottom plate of the accommodating groove can be set perpendicular to the mounting panel, and then the air curtain slot on the bottom plate is a long rectangle extending along the width direction of the camera. In order to guide the air-cooling medium to be sprayed to the shooting window, the circumferential wall of the air curtain slot needs to be tilted relative to the vertical direction (that is, the third direction or the height direction of the camera); as for the specific tilt angle, it can be determined according to the specific structural dimensions.

[0110] For example, combining Figure 8 、 Figure 9 and Figure 10 The cross-section of the air curtain slot perpendicular to the third direction is a rectangle. Among the two opposite long sides 551, the inclination angle B of the long side close to the installation panel can be 2 degrees, and the inclination angle A of the long side away from the installation panel can be 6 degrees; the two opposite short sides 552 of the air curtain slot are inclined in a convergent shape relative to the shooting window, and the inclination angle can be 1.5 degrees.

[0111] In one possible embodiment, the radial inner end and the radial outer end of the first flange 30 are welded to the inner shell 10 and the outer shell 20, respectively; the radial inner end and the radial outer end of the second flange 40 are welded to the inner shell 10 and the outer shell 20, respectively; the mounting panel 51 is provided with screw through holes 514 arranged along the first direction X, so that the mounting screws pass through the screw through holes 514 and fasten the mounting panel 51 to the first flange 30.

[0112] That is, this embodiment specifically provides a possible assembly method for an air-cooled camera, which can be returned to refer to Figure 1 , wherein the first flange and the second flange can be welded respectively at both ends of the inner shell along the first direction, that is, the radial inner ends of the two flanges are welded to the inner shell. In addition, the diverter plate can be welded at the position between the two flanges of the inner shell; then, after the outer shell is sleeved, the radial outer ends of the two flanges are welded to the outer shell from both ends; wherein the diverter plate can be welded to the inner shell only through the radial inner end.

[0113] As for the installation of the front cover assembly, combined with Figure 6 and Figure 12 , screw through holes can be set on the mounting panel of the front cover assembly, and the screw through holes pass through the mounting panel along the first direction; in this way, the front cover assembly can be first plugged into the plug-in part of the shell. At this time, it can be understood that the mounting panel of the front cover assembly axially abuts against the first flange, and the plug-in ring of the front cover assembly circumferentially abuts against the plug-in part; then, the mounting panel is fastened to the first flange by installing screws to complete the assembly of the front cover assembly.

[0114] In one possible embodiment, the air-cooled camera also includes a lens assembly 91, a circuit board assembly 92 and a heat sink 93 located inside the inner shell 10; wherein the lens assembly 91 is installed on the side of the mounting panel 51 facing the first flange 30; the heat sink 93 extends along the first direction X and is fixedly installed on the inner side of the inner shell 10, and the heat sink 93 is used to support the circuit board assembly 92; the rear cover assembly 94 is fixedly installed on the outer end of the second flange 40, and the rear cover assembly 94 is used to close the end of the outer shell 20.

[0115] That is, combined Figure 12 and Figure 13 The lens assembly can be installed on the side of the mounting panel facing the first flange. Then, a heat sink can be welded inside the inner shell, for example, and heat conduction between the heat sink and the inner shell can be ensured. The heat sink is in the shape of a flat plate extending along the first direction, and the heat sink can specifically carry the circuit board assembly. In this way, the heat generated by the electronic components on the circuit board assembly is conducted to the inner shell through the heat sink, and then conducted to the air-cooling medium, thereby achieving heat dissipation of the electronic components.

[0116] As for the tail of the air-cooled camera, similar to the front cover assembly fastened to the first flange, the rear cover assembly can be fastened and installed on the outer end of the second flange; wherein, a wire threading tube 95 can be set in the middle position of the rear cover assembly 94, and the wire threading tube passes through the inside of the inner shell to realize the installation of cables.

[0117] In addition, understandably, combined Figure 3 and Figure 6 A positioning column 515 and a positioning hole 32 can be respectively provided between the mounting panel of the front cover assembly and the first flange to achieve positioning installation.

[0118] In addition, regarding the sizes of the above-mentioned components of the air-cooled camera, in a specific product example, the diameter of the air inlet hole can be 15.5mm, and the center distance of the air inlet hole from the center of the inner shell can be 56.7mm. Along the first direction, the length of the diverter plate from the inner side of the second flange is 40mm, the diameter of the diverter hole is 13mm, and the center distance of the two diverter holes on both sides is 45mm. The air outlet hole is centered on the first flange, the diameter of the air outlet hole is 10mm, and the center distance of the air outlet hole can be 58mm from the center of the inner shell. The length and width of the air curtain slot are 74mm×4.3mm, the diameter of the through air hole is 10mm, and the center distance of the through air hole can be 58mm from the center of the mounting panel. Among the four guide ribs, the two low-position guide ribs are 6mm apart, and the two high-position guide ribs are 20mm apart. The maximum fillet radius of the air guide corner is 8.6mm.

[0119] The basic principles of the present application have been described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, and effects mentioned in this application are merely illustrative and not restrictive, and it should not be assumed that these advantages, strengths, and effects are required of each embodiment of this application. In addition, the specific details disclosed above are merely illustrative and facilitating understanding, and are not restrictive. The above details do not limit this application to necessarily being implemented using the above specific details.

[0120] The block diagrams of the devices, devices, equipment, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As will be appreciated by those skilled in the art, these devices, devices, equipment, and systems can be connected, arranged, or configured in any manner. Words such as "include," "comprise," "have," and the like are open-ended words, meaning "including but not limited to," and can be used interchangeably therewith. The words "or" and "and" used herein refer to the words "and / or" and can be used interchangeably therewith, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to," and can be used interchangeably therewith.

[0121] It should also be noted that in the apparatus, device, and method of the present application, each component or each step can be decomposed and / or recombined, and such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0122] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0123] The above description has been provided for the purpose of illustration and description. Furthermore, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize that certain variations, modifications, alterations, additions, and sub-combinations thereof are intended to be within the scope of the present invention.

Claims

1. A camera, characterized in that: The camera comprises: An inner shell and an outer shell extending along a first direction and coaxially arranged, the outer shell being fitted over the inner shell, the inner shell and the outer shell being opened at both ends along the first direction, wherein the first direction is the length direction of the camera; a first flange and a second flange provided between the inner shell and the outer shell, wherein the first flange and the second flange are respectively located at two ends of the inner shell along the first direction, and the first flange and the second flange respectively seal the annular space between the inner shell and the outer shell, so as to form an annular first accommodating space between the inner shell and the outer shell; A front cover assembly plugged into the housing, wherein the front cover assembly is plugged into a plug-in portion of the housing that protrudes axially from the first flange; The front cover assembly includes a mounting panel perpendicular to the first direction, the mounting panel being provided with at least a shooting window, a plug-in ring extending along the first direction at a circumferential end portion of the mounting panel on a side of the mounting panel facing away from the first flange, a portion of the plug-in ring located above the shooting window being radially inwardly recessed to form an accommodating groove, a bottom plate of the accommodating groove being provided with an air curtain groove, the bottom plate and the air curtain groove extending along a second direction, the second direction being the width direction of the camera; Wherein, when the front cover assembly is plugged and installed with the housing, the plug-in ring is used to circumferentially abut against the plug-in portion, and the accommodating groove is used to form a second accommodating space between the accommodating groove and the plug-in portion; Furthermore, along the first direction, the second flange is provided with an air inlet through-hole, the first flange is provided with an air outlet through-hole, and the mounting panel is provided with a through-hole, the through-hole extending from a side of the mounting panel toward the first flange to the accommodating groove, the through-hole being coaxially arranged with the air outlet through-hole; When the front cover assembly is plugged and installed with the plug-in part, the air-cooling medium flows from the air inlet hole through the first accommodating space and the second accommodating space in sequence, and blows the shooting window through the air curtain slot.

2. The camera according to claim 1, wherein The radial inner end and the radial outer end of the first flange are welded to the inner shell and the outer shell respectively; The radial inner end and the radial outer end of the second flange are welded to the inner shell and the outer shell respectively; The mounting panel is provided with screw through holes arranged along the first direction, so that the mounting screws pass through the screw through holes and fasten the mounting panel to the first flange.

3. The camera according to claim 1, wherein In the annular cross-section of the second flange, the air inlet hole is located in the middle of the arc-shaped cross-section portion at the lower end of the shooting window.

4. The camera according to claim 3, characterized in that The housing is a cylindrical sleeve extending along the first direction; The inner shell includes a first flat plate and a second flat plate arranged opposite to each other, the first flat plate and the second flat plate extending along the first direction, the first flat plate and the second flat plate being perpendicular to a third direction, the third direction being the height direction of the camera, the first flat plate and the second flat plate being connected to form a circumferentially closed sleeve shape by a pair of arc-shaped walls extending along the first direction, so that the outer surfaces of the first flat plate and the second flat plate form a guide plane for the air-cooling medium.

5. The camera according to claim 4, characterized in that A diverter plate is provided in the first accommodating space at a position close to the air inlet hole along the first direction. The diverter plate is arranged perpendicular to the first direction and is located in an arc-shaped cross-section portion of the annular cross-section of the first accommodating space opposite to the lower end of the shooting window; Furthermore, the diverter plate is provided with a plurality of diverter holes, and the plurality of diverter holes are arranged along the second direction; So that the air-cooling medium is evenly distributed in the annular cross-section of the first accommodating space.

6. The camera according to claim 1, wherein In the annular cross-section of the first flange, the air outlet hole is located in the middle of the arc-shaped cross-section portion at the upper end of the shooting window.

7. The camera according to claim 6, characterized in that An air guide plug is inserted into the accommodating groove, and the air guide plug includes an arc-shaped cover, wherein a first side wall of the arc-shaped cover extends along a third direction on a side close to the first flange, and a second side wall of the arc-shaped cover extends along the third direction on another side away from the first flange, so that the air guide plug is arranged in an open shape at one end facing the base plate, and the third direction is a height direction of the camera; Furthermore, when the air guide plug is plugged into the accommodating groove, the arc-shaped cover is used to abut against the plug-in portion, and the first side wall is provided with an avoidance gap to avoid the through air hole.

8. The camera according to claim 7, wherein: An air guide fillet is provided on the inner side of the second side wall at a position corresponding to the central axis of the through-hole, so that the air-cooling medium flowing into the air guide plug-in from the through-hole is guided to the air curtain slot through the air guide fillet.

9. The camera according to any one of claims 7 and 8, characterized in that: A plurality of guide ribs extending along the third direction are provided on the inner side of the second side wall and in an area away from the arc-shaped cover; Among them, several of the guide ribs are arranged in parallel, and the heights of the several guide ribs are gradually increased from the middle to both sides.

10. The camera according to claim 7, wherein: The bottom plate is provided with a positioning rib, and the end of the air guide plug-in facing the bottom plate is provided with a positioning groove for the positioning rib to be inserted; The bottom plate is perpendicular to the mounting panel, and the circumferential wall of the bottom plate forming the air curtain slot is inclined relative to a third direction, which is the height direction of the camera, so as to guide the air-cooling medium to be sprayed onto the shooting window.

Images