Blowing device and camera

Abstract

The blowing device comprises a shell, a cover body, a filtering assembly and a driving assembly, the shell is provided with a filtering cavity and an assembling cavity which are communicated with each other, the shell is further provided with an air inlet and an air outlet, the shell comprises a bottom shell and a sun shade covering the bottom shell, and the sun shade is provided with a disassembling and assembling opening communicated with the filtering cavity; the cover body is arranged on the sun shade and can open / close the disassembly and assembly opening; the filtering assembly is arranged in the filtering cavity and can be disassembled through the disassembling and assembling opening; the driving assembly is arranged in the assembling cavity and used for driving air to flow into the filtering cavity from the air inlet and flow out of the air outlet after sequentially passing through the filtering assembly and the driving assembly. The filtering assembly can filter dirt such as dust in airflow flowing into the filtering cavity, so that the blowing device blows clean airflow to the camera, and the sun shade is used for shielding external strong light; the sun shade or the camera does not need to be detached when the filter assembly is replaced, operation is easy and convenient, and user maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of monitoring equipment, in particular to an air blowing device and a camera. Background Art

[0002] Since dust and other dirt may adhere to the window surface during the use of the camera, affecting the normal shooting of the camera, a filter and a fan are usually used to blow clean air to the window to remove the dust and other dirt attached to the window surface.

[0003] However, after long-term use, the filter will also be attached with a lot of dust and other dirt, resulting in reduced filtering effect, or reducing the air volume blown out by the fan, thereby affecting the dust removal effect on the window. Although in the related prior art, some cameras can replace the new filter after removing the sunshade or the entire camera, the operation is relatively cumbersome and inconvenient for users to maintain. Utility Model Content

[0004] Based on this, it is necessary to provide an air blowing device and a camera to address the above problems. The air blowing device can replace the filter assembly without disassembling the sunshade and the camera.

[0005] The utility model first provides an air blowing device, comprising: a shell, provided with a filter chamber and an assembly chamber connected to each other, the shell also provided with an air inlet connected to the filter chamber and an air outlet connected to the assembly chamber, the shell comprising a bottom shell and a sunshade cover arranged on the bottom shell, the sunshade cover provided with a disassembly port connected to the filter chamber; a cover body, arranged on the sunshade cover, and capable of opening / covering the disassembly port; a filter assembly, arranged in the filter chamber, and capable of being disassembled through the disassembly port; and a drive assembly, arranged in the assembly chamber, the drive assembly being used to drive air to flow from the air inlet into the filter chamber, and to flow out from the air outlet after passing through the filter assembly and the drive assembly in sequence.

[0006] In the above-mentioned air blowing device, the driving component drives the air in the external environment to flow into the filter cavity through the air inlet, and the filter component can filter the dust and other dirt in the air flow flowing into the filter cavity. The clean air flow after filtering flows from the air outlet to the window of the camera body after passing through the driving component to remove the dust and other dirt attached to the surface of the window. The sunshade is used to block part of the strong light from the outside such as sunlight to prevent the outside light from being too strong and affecting the shooting effect of the camera body. When the filter component is used for a long time, the cover body can be opened, the old filter component can be disassembled from the disassembly port, and the new filter component can be installed from the disassembly port into the filter cavity. After the replacement is completed, the cover body can be closed with the disassembly port. In this way, the filtering effect of the filter component can be guaranteed, and the air flow flowing out of the air outlet is guaranteed to be a clean air flow, thereby improving the dust removal effect on the window; and when replacing the filter component, there is no need to disassemble the sunshade or the camera, the operation is simple and convenient, and it is convenient for users to maintain the air blowing device and the camera.

[0007] In one of the embodiments, one end of the cover body is rotatably connected to the sunshade, and the other end of the cover body is detachably connected to the sunshade.

[0008] With such arrangement, when the cover body is opened or closed, one end of the cover body is always connected to the sunshade, and the cover body will not fall off, thereby facilitating user operation and avoiding loss of parts.

[0009] In one of the embodiments, the blowing device further comprises a snap assembly, wherein the snap assembly is disposed on one of the cover body and the sunshade, and the other of the cover body and the sunshade is provided with a snap-fitting portion capable of snapping together with the snap-fitting assembly.

[0010] With such arrangement, the buckle assembly and the clamping portion have simple structures, are easy for users to operate, and have low costs.

[0011] In one of the embodiments, the buckle assembly includes a snap-fitting member disposed on the cover body and capable of sliding relative to the cover body, the snap-fitting member includes a snap-fitting surface, and when the cover body is in a closed state, the snap-fitting surface is snap-fitted with the snap-fitting portion.

[0012] With such arrangement, the user can conveniently control the sliding of the clamping member relative to the cover body, so as to control the clamping surface of the clamping member to be engaged with or disengaged from the clamping portion of the sunshade.

[0013] In one embodiment, the clamping member also includes a guide surface facing away from the clamping surface; and / or, the cover body is provided with a slide groove, the clamping member is slidably disposed in the slide groove, and the buckle assembly also includes an elastic member arranged between the clamping member and the bottom wall of the slide groove; and / or, the inner wall of the slide groove and one of the clamping member are provided with a limiting slot hole, and the other is convexly provided with a limiting portion, and the limiting portion is slidably disposed in the limiting slot hole.

[0014] With such an arrangement, there is no need to manually control the sliding of the snap-fitting part during the process of closing the cover body, which simplifies the operating steps and makes it easier for users to control the snap-fit ​​assembly. The limiting slot hole cooperates with the limiting part to limit the range of movement of the snap-fitting part, preventing the snap-fitting part from falling out of the slide slot, thereby ensuring that the snap-fitting surface can be normally engaged with the snap-fitting part.

[0015] In one embodiment, the air inlet is arranged on the bottom wall of the bottom shell, and the filter assembly includes an outer shell, a filter element and a first seal, and the filter element is arranged in the outer shell; the first seal is arranged between the outer shell and the bottom shell, and / or the first seal is arranged between the outer shell and the sunshade.

[0016] With such arrangement, the first sealing member can ensure the sealing between the outer shell and the bottom shell and the sunshade, and prevent dirt such as dust from the external environment from entering the filter cavity or the connecting port through the gaps between the outer shell and the bottom shell and between the outer shell and the sunshade.

[0017] In one of the embodiments, the bottom wall of the bottom shell is provided with a first sealing rib located at the periphery of the air inlet and inclined toward the disassembly and assembly port, and the first sealing member includes a second sealing rib arranged at the bottom of the shell and inclined toward a side away from the disassembly and assembly port; in a closed state, the cover body pushes the filter assembly toward a side wall of the filter cavity away from the disassembly and assembly port, and the first sealing rib fits against the second sealing rib.

[0018] With such arrangement, when the cover body pushes against the filter assembly, the first sealing rib and the second sealing rib can fit more closely, so that the first sealing rib and the second sealing rib can be reliably sealed.

[0019] In one embodiment, the filter assembly further includes a handle disposed on the side of the shell facing the disassembly port, and an abutment portion is protruding from the inner wall of the cover body. In a closed state, the abutment portion pushes the handle toward a side wall of the filter cavity away from the disassembly port.

[0020] With such arrangement, the handle can facilitate the user to install or remove the filter assembly, and the stability and reliability of the cover body pushing against the filter assembly can be ensured by the abutting portion pushing the handle.

[0021] In one embodiment, the sunshade and the bottom shell are arranged to form the filter chamber and the assembly chamber, and the sunshade is provided with a connecting port connecting the filter chamber and the assembly chamber; and / or, the shell is also provided with a rectifying chamber, the two ends of the rectifying chamber are respectively connected with the assembly chamber and the air outlet, and the blowing device also includes a rectifying assembly arranged in the rectifying chamber.

[0022] Such a configuration makes the structure of the shell more compact, thereby reducing the overall thickness of the shell, and when replacing the filter assembly, dust and other dirt on the filter assembly are not easy to enter the assembly cavity through the connecting port; the rectifying assembly makes the airflow flowing out of the air outlet a clean laminar flow, and the laminar airflow can remove dust and other dirt attached to the window surface, and is not easy to cause new dirt to be adsorbed to the window surface.

[0023] The utility model also provides a camera, comprising: a camera body, provided with a viewing window; and the blowing device as described above, arranged on the top of the camera body, with the air outlet facing the viewing window.

[0024] With such arrangement, the air blowing device can blow clean air toward the window to remove dirt such as dust attached to the surface of the window, thereby ensuring the shooting effect of the camera body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of a camera according to one embodiment of the utility model;

[0027] Figure 2 The utility model provides Figure 1 Schematic diagram of the explosion of the central blowing device;

[0028] Figure 3 The utility model provides Figure 2 An air flow diagram of an air blowing device;

[0029] Figure 4 The utility model provides Figure 2 A schematic diagram of the three-dimensional structure of the blowing device;

[0030] Figure 5 The utility model provides Figure 4 A schematic diagram of the three-dimensional structure of the middle cover body in an open state;

[0031] Figure 6 The utility model provides Figure 4 A cross-sectional schematic diagram of a blowing device;

[0032] Figure 7 The utility model provides Figure 6 The enlarged schematic diagram of point A in the middle;

[0033] Figure 8 The utility model provides Figure 2 A schematic diagram of the three-dimensional structure of the mid-bottom shell;

[0034] Fig. 9 The utility model provides Figure 2 Schematic diagram of the three-dimensional structure of the filter assembly;

[0035] Fig.10 The utility model provides Figure 2 An exploded schematic diagram of the middle cover body and the buckle assembly;

[0036] Fig.11 The utility model provides Fig.10 Schematic diagram of the three-dimensional structure of the middle clamping part.

[0037] Figure numerals: 1, shell; 11, bottom shell; 111, air inlet; 112, air outlet; 113, first sealing rib; 12, sunshade; 121, disassembly port; 122, clamping part; 123, communication port; 13, filter chamber; 14, assembly chamber; 15, rectification chamber; 16, second sealing member; 2, cover; 21, slide groove; 22, limit slot; 221, limit slide groove; 222, limit through hole; 23, abutment part; 24, rotating shaft; 3, filter assembly; 31, shell; 3 2. Filter element; 33. Handle; 34. First sealing member; 341. Second sealing rib; 342. Sealing ring; 4. Driving assembly; 5. Buckle assembly; 51. Snap-fit ​​member; 511. Snap-fit ​​surface; 512. Guide surface; 513. Limiting portion; 5131. Limiting protrusion; 5132. Limiting column; 52. Elastic member; 6. Rectification assembly; 61. First rectifying member; 62. Second rectifying member; 7. Camera body; 71. Window; 72. Retaining rib; 73. Radar; 74. Fill light. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0039] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0043] Some cameras need to be used outdoors due to their working characteristics. In outdoor scenes, it is inevitable to encounter rainy weather or dusty places. For example, the air circulation in the tunnel scene is poor, and motor vehicles will raise a lot of dust when passing through the tunnel, and the exhaust emissions of motor vehicles also contain a lot of oil, which will cause the raised dust, oil and other dirt to adhere to the surface of the camera window. When the dirt attached to the window surface reaches a certain amount, the image quality captured by the camera will become blurred, thereby affecting the normal shooting of the camera. Therefore, a filter and a fan are usually used to blow clean air to the window to remove dust and other dirt attached to the window surface. However, after long-term use, the filter will also adhere to a lot of dust and other dirt, resulting in a decrease in the filtering effect, or a decrease in the amount of air blown out by the fan, thereby affecting the dust removal effect on the window. Although in the relevant prior art, some cameras can replace the new filter after disassembling the sunshade or the entire camera, the operation is relatively cumbersome and inconvenient for users to maintain.

[0044] In order to solve the above problems, Figures 1 to 11 As shown, the utility model first provides an air blowing device, which can replace the filter assembly without disassembling the sunshade and the camera, and is simple and convenient to operate and easy for users to maintain.

[0045] like Figures 2 to 5 As shown, specifically, the blowing device includes a shell 1, a cover body 2, a filter assembly 3 and a drive assembly 4, wherein: the shell 1 is provided with a filter chamber 13 and an assembly chamber 14 which are interconnected, the shell 1 is also provided with an air inlet 111 which is connected to the filter chamber 13 and an air outlet 112 which is connected to the assembly chamber 14, the shell 1 includes a bottom shell 11 and a sunshade 12 which is covered on the bottom shell 11, the sunshade 12 is provided with a disassembly port 121 which is connected to the filter chamber 13; the cover body 2 is provided on the sunshade 12, and can open or cover the disassembly port 121; the filter assembly 3 is provided in the filter chamber 13, and can be disassembled through the disassembly port 121; the drive assembly 4 is provided in the assembly chamber 14, the drive assembly 4 is used to drive the air to flow into the filter chamber 13 from the air inlet 111, and flow out from the air outlet 112 after passing through the filter assembly 3 and the drive assembly 4 in sequence.

[0046] In the blowing device provided by the embodiment of the utility model, the air outlet 112 faces the window 71 of the camera body 7, the driving component 4 drives the air in the external environment to flow into the filter chamber 13 through the air inlet 111, and the filter component 3 can filter the dust and other dirt in the airflow flowing into the filter chamber 13, and the clean airflow after filtering flows from the air outlet 112 to the window 71 after passing through the driving component 4 to remove the dust and other dirt attached to the surface of the window 71, and the sunshade 12 is used to block part of the strong light from the outside such as sunlight to prevent the outside light from being too strong and affecting the shooting effect of the lens (not shown) in the camera body 7. When the filter component 3 is used for a long time, for example, when the flow rate of the airflow flowing out of the air outlet 112 is significantly slowed down, the cover body 2 can be opened, the old filter component 3 can be removed from the disassembly and assembly port 121, and the new filter component 3 can be installed in the filter chamber 13 from the disassembly and assembly port 121, and the cover body 2 can be closed to cover the disassembly and assembly port 121 after the replacement is completed. This can ensure the filtering effect of the filter component 3 and ensure that the airflow flowing out of the air outlet 112 is a clean airflow, thereby improving the dust removal effect on the window 71; and when replacing the filter component 3, there is no need to remove the sunshade 12 or the camera, the operation is simple and convenient, and it is easy for users to maintain the blowing device and the camera.

[0047] like Figure 3 and Figure 6 As shown, in the illustrated embodiment, the sunshade 12 and the bottom shell 11 are arranged to form a filter chamber 13 and an assembly chamber 14, and the sunshade 12 is provided with a connecting port 123 connecting the filter chamber 13 and the assembly chamber 14. This makes the structure of the housing 1 more compact, thereby reducing the overall thickness of the housing 1 and avoiding increasing the overall volume of the blowing device and the camera. In addition, the connecting port 123 is located above the filter assembly 3. When the filter assembly 3 is replaced, dust and other dirt on the filter assembly 3 are not easy to enter the assembly chamber 14 through the connecting port 123. Among them, the housing 1 also includes a second sealing member 16 arranged between the sunshade 12 and the bottom shell 11 to ensure the sealing of the assembly chamber 14.

[0048] Of course, in other embodiments, the sunshade 12 and the bottom shell 11 may be arranged to enclose the filter chamber 13 , and an assembly chamber 14 connected to the filter chamber 13 through the connecting port 123 may be separately formed on the bottom shell 11 or the sunshade 12 .

[0049] like Figures 2 to 3As shown, the housing 1 is further provided with a rectifying chamber 15, the two ends of which are respectively connected to the assembly chamber 14 and the air outlet 112, and the air blowing device further comprises a rectifying assembly 6 arranged in the rectifying chamber 15. The rectifying assembly 6 can rectify the turbulent airflow flowing out of the driving assembly 4, so that the airflow flowing out of the air outlet 112 is a clean laminar flow, and the laminar flow has the characteristics of regularity and uniform flow rate, etc. The laminar airflow can remove dust and other dirt attached to the surface of the window 71, and in the process of blowing, it is not easy to cause new dirt to be adsorbed to the surface of the window 71, so as to enhance the dust removal and dust prevention effect of the window 71, and prevent dust and other dirt from adhering to the surface of the window 71 and affecting the shooting effect of the camera body 7. Among them, the rectifying chamber 15 can be formed by the sunshade 12 and the bottom shell 11, or it can be formed by the bottom shell 11 or the sunshade 12 alone.

[0050] In the illustrated embodiment, the rectifying assembly 6 includes a first rectifying member 61 and a second rectifying member 62. The first rectifying member 61 is disposed at one end of the rectifying chamber 15 close to the driving assembly 4, and the second rectifying member 62 is disposed at one end of the rectifying chamber 15 close to the air outlet 112. The first rectifying member 61 rectify the airflow immediately after it flows out of the driving assembly 4, and the second rectifying member 62 rectify the airflow when it flows out of the air outlet 112, so that the turbulent airflow flowing out of the driving assembly 4 can be rectified twice in succession, thereby improving the rectifying effect and ensuring that the airflow flowing out of the air outlet 112 is a regular laminar flow with uniform flow rate, thereby further improving the dust removal and dust prevention effect on the window 71. Among them, the first rectifying member 61 and the second rectifying member 62 can be set as rectifying nets made of aluminum alloy.

[0051] Of course, in other embodiments, under the condition that the airflow flowing out of the air outlet 112 is ensured to be uniform, the rectifying assembly 6 may also include only the first rectifying component 61 or only the second rectifying component 62 .

[0052] Furthermore, the driving component 4 can be configured as a fan or the like capable of driving the air flow in the blowing device along the air inlet 111, the filter cavity 13, the connecting port 123, the assembly cavity 14, the rectifying cavity 15 and the air outlet 112 (i.e. Figure 3 The present invention does not impose any specific limitation on the elements that flow in the Y direction as shown.

[0053] like Figure 4 , Figure 5 and Fig.10 As shown, one end of the cover body 2 is rotatably connected to the sunshade 12, and the other end of the cover body 2 is detachably connected to the sunshade 12. In this way, when the cover body 2 is opened or closed, one end of the cover body 2 is always connected to the sunshade 12, and the cover body 2 will not fall off, which is convenient for users to operate and avoids the loss of parts. Specifically, one of the cover body 2 and the sunshade 12 is provided with a rotating shaft 24, and the other is provided with a rotating shaft hole (not shown) rotatably connected to the rotating shaft 24.

[0054] like Figure 6 to Figure 7 As shown, the blowing device further includes a buckle assembly 5, which is disposed on one of the cover body 2 and the sunshade 12, and the other of the cover body 2 and the sunshade 12 is provided with a buckle portion 122 that can be buckled and matched with the buckle assembly 5. The buckle assembly 5 and the buckle portion 122 have a simple structure, are easy for users to operate, and have a low cost.

[0055] like Figure 7 and Fig.10 As shown, in the illustrated embodiment, the buckle assembly 5 includes a snap-fitting member 51 disposed on the cover body 2 and capable of sliding relative to the cover body 2. The snap-fitting member 51 includes a snap-fitting surface 511. When the cover body 2 is in the closed state, the snap-fitting surface 511 is snap-fitted with the snap-fitting portion 122. Figure 7 and Fig.10 The cover 2 slides in the ±X direction as shown. When the cover 2 needs to be opened, the clamping member 51 is controlled to slide in the +X direction so that the clamping surface 511 is disengaged from the clamping portion 122. At this time, the cover 2 can be rotated relative to the sunshade 12 to open the disassembly opening 121; when the cover 2 and the sunshade 12 need to be fixed, the cover 2 is first rotated relative to the sunshade 12 to cover the disassembly opening 121, and then the clamping member 51 is slid in the -X direction so that the clamping surface 511 is clamped with the clamping portion 122. At this time, the cover 2 cannot be rotated relative to the sunshade 12 to ensure that the cover 2 covers the disassembly opening 121 for stability and reliability, and to prevent the filter assembly 3 from accidentally falling out of the filter cavity 13 during use. The user can conveniently control the clamping member 51 to slide relative to the cover 2 to control the clamping surface 511 of the clamping member 51 to clamp or disengage with the clamping portion 122 of the sunshade 12.

[0056] like Figure 7 and Fig.11 As shown, the snap-on component 51 also includes a guide surface 512 that is away from the snap-on surface 511. In the process of rotating the cover body 2 relative to the sunshade 12 to cover the assembly and disassembly opening 121, the guide surface 512 will abut against the snap-on portion 122, so that the snap-on component 51 slides in the +X direction, avoiding interference between the snap-on component 51 and the snap-on portion 122, which causes the cover body 2 to be unable to cover the assembly and disassembly opening 121. When the cover body 2 completely covers the assembly and disassembly opening 121, the user controls the snap-on component 51 to slide in the -X direction, so that the snap-on surface 511 of the snap-on component 51 is snap-fitted with the snap-on portion 122. In this way, in the process of covering the cover body 2, there is no need to manually control the snap-on component 51 to slide in the +X direction, which simplifies the operation steps and facilitates the user to control the buckle assembly 5.

[0057] like Figure 7 and Fig.10As shown, the cover body 2 is provided with a slide groove 21, and the clip 51 is slidably arranged in the slide groove 21, and the buckle assembly 5 also includes an elastic member 52 arranged between the clip 51 and the bottom wall of the slide groove 21. When the clip 51 slides in the +X direction, the elastic member 52 is compressed and applies an elastic force toward the -X direction to the clip 51. Therefore, in the process of covering the cover body 2, when the cover body 2 completely covers the disassembly opening 121, the clip 51 can slide in the -X direction under the action of the elastic force of the elastic member 52, so that the clip surface 511 of the clip 51 is engaged with the clip portion 122. In this way, in the process of covering the cover body 2, there is no need to manually control the clip 51 to slide in the -X direction, which further simplifies the operation steps and facilitates the user to control the buckle assembly 5. Moreover, when the locking surface 511 is engaged with the locking portion 122, the elastic member 52 may also be in a compressed state and apply an elastic force toward the -X direction to the locking member 51 to improve the stability and reliability of the locking surface 511 and the locking portion 122 when they are engaged, thereby preventing the locking member 51 from accidentally detaching from the locking portion 122.

[0058] The elastic member 52 may be configured as a spring, a silicone member, a rubber member or other elastic element, and the embodiment of the utility model does not make any specific limitation thereto.

[0059] like Figure 7 , Fig.10 and Fig.11 As shown, one of the inner wall of the slide groove 21 and the clamping member 51 is provided with a limiting slot hole 22, and the other is provided with a limiting portion 513, and the limiting portion 513 is slidably disposed in the limiting slot hole 22. Specifically, the limiting slot hole 22 can be a limiting slide groove 221, and the limiting portion 513 can be a limiting protrusion 5131. The limiting slide groove 221 extends along the ±X direction, and the limiting protrusion 5131 slides in the limiting slide groove 221 along the ±X direction to limit the range of movement of the clamping member 51 in the slide groove 21, so as to prevent the clamping member 51 from falling out of the slide groove 21. The limiting slot 22 may also be a limiting through hole 222, and the limiting portion 513 may also be a limiting column 5132. The limiting column 5132 and the limiting through hole 222 both extend along the ±X direction, and the limiting column 5132 can slide in the limiting through hole 222 along the ±X direction to limit the sliding direction of the clamping member 51, thereby preventing the clamping member 51 from swinging or deviating during the sliding process, causing the clamping surface 511 to be unable to clamp with the clamping portion 122.

[0060] like Figure 2 and Figure 6As shown, the air inlet 111 is arranged on the bottom wall of the bottom shell 11, and the filter assembly 3 includes a shell 31, a filter element 32 and a first sealing member 34. The filter element 32 is arranged in the shell 31; the first sealing member 34 is arranged between the shell 31 and the bottom shell 11, or between the shell 31 and the sunshade 12. After the filter assembly 3 is used for a long time, the filter element 32 can be replaced alone or the entire filter assembly 3 can be replaced to ensure the filtering effect of the filter assembly 3. The first sealing member 34 can ensure the sealing between the shell 31 and the bottom shell 11 and the sunshade 12, and prevent dust and other dirt from the external environment from entering the filter cavity 13 or the connecting port 123 through the gap between the shell 31 and the bottom shell 11 and the gap between the shell 31 and the sunshade 12.

[0061] like Figure 2 and Figure 6 As shown, the first sealing member 34 includes a sealing ring 342, and the sealing ring 342 is arranged between the outer shell 31 and the sun shield 12. In the assembled state, the outer shell 31 and the sun shield 12 squeeze the sealing ring 342 to ensure the sealing between the outer shell 31 and the sun shield 12, and prevent dust and other dirt from the external environment from entering the connecting port 123 through the gap between the outer shell 31 and the sun shield 12.

[0062] like Figure 6 , Figure 8 and Fig. 9 As shown, the bottom wall of the bottom shell 11 is provided with a first sealing rib 113 located at the periphery of the air inlet 111 and inclined toward the disassembly port 121, and the first sealing member 34 includes a second sealing rib 341 arranged at the bottom of the shell 31 and inclined toward the side away from the disassembly port 121; in the closed state, the cover body 2 pushes the filter assembly 3 toward the side wall of the filter cavity 13 away from the disassembly port 121, and the first sealing rib 113 fits with the second sealing rib 341. Since the first sealing rib 113 and the second sealing rib 341 are both inclined, when the cover body 2 pushes the filter assembly 3 toward the side wall of the filter cavity 13 away from the disassembly port 121, the first sealing rib 113 and the second sealing rib 341 can fit more closely, so that the first sealing rib 113 and the second sealing rib 341 can be reliably sealed, thereby improving the sealing between the shell 31 and the bottom wall of the bottom shell 11, and preventing dust and other dirt from the external environment from entering the filter cavity 13 through the gap between the shell 31 and the bottom shell 11.

[0063] like Figure 7As shown, the filter assembly 3 also includes a handle 33 disposed on the side of the housing 31 facing the disassembly opening 121, and the inner wall of the cover body 2 is convexly provided with an abutment portion 23. In the closed state, the abutment portion 23 pushes the handle 33 toward a side wall of the filter chamber 13 away from the disassembly opening 121. The handle 33 can facilitate the user to install or remove the filter assembly 3. Since other structures are also provided on the inner surface of the cover body 2, or due to the structural requirements of the sunshade 12, the cover body 2 may be arranged tilted, therefore, the abutment portion 23 is provided on the inner surface of the cover body 2, and the abutment portion 23 pushes the handle 33 to ensure the stability and reliability of the cover body 2 pushing against the filter assembly 3, thereby ensuring the sealing effect of the first sealing member 34.

[0064] like Figure 1 As shown, the embodiment of the utility model further provides a camera, including a camera body 7 and the above-mentioned blowing device, the camera body 7 is provided with a viewing window 71, the blowing device is arranged at the top of the camera body 7, and the air outlet 112 faces the viewing window 71. The blowing device can blow a clean laminar airflow toward the viewing window 71 to remove dust and other dirt attached to the surface of the viewing window 71, and it is not easy to cause new dirt to be adsorbed on the surface of the viewing window 71 during the blowing process, so as to improve the dust removal effect of the viewing window 71, and the sunshade 12 can prevent the external light from being too strong to affect the shooting effect of the lens in the camera body 7.

[0065] The air blowing device can be fixedly mounted on the camera body 7 by a plurality of screws or other fasteners to ensure the stability and reliability of the connection between the air blowing device and the camera body 7. In addition, there is a certain gap between the bottom wall of the bottom shell 11 and the top wall of the camera body 7 to ensure that the air in the external environment can flow into the air inlet 111 through the gap.

[0066] like Figure 1 and Figure 3 As shown, the airflow flowing out from the air outlet 112 flows in a direction parallel to the window 71, so that the airflow flowing out from the air outlet 112 can form an air curtain on the surface of the window 71 that is parallel to the window 71 and closely attached to the window 71. The air curtain can isolate the window 71 from the external ambient air, further preventing dust and other dirt in the external environment from adhering to the surface of the window 71, thereby playing a dust-proof role.

[0067] like Figure 1 As shown, the camera body 7 also includes baffles 72 arranged on both sides of the window 71. The baffles 72 can limit the flow direction of the airflow flowing out of the air outlet 112 to prevent the airflow from diffusing outward, thereby further ensuring that a wind curtain parallel to the window 71 and tightly attached to the window 71 can be formed on the surface of the window 71, and the baffles 72 can also prevent dust and other dirt in the external environment from being adsorbed to the surface of the window 71 from both sides of the window 71, thereby improving the dust removal and dust prevention effect of the window 71.

[0068] like Figure 1 As shown, the camera body 7 may also include other functional elements such as a radar 73 and a fill light 74 .

[0069] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A blowing device, characterized in that: include: A shell (1) is provided with a filter chamber (13) and an assembly chamber (14) which are communicated with each other, the shell (1) is also provided with an air inlet (111) which is communicated with the filter chamber (13) and an air outlet (112) which is communicated with the assembly chamber (14), the shell (1) comprises a bottom shell (11) and a sunshade (12) which is arranged on the bottom shell (11), the sunshade (12) is provided with a disassembly port (121) which is communicated with the filter chamber (13); A cover body (2) is arranged on the sunshade (12) and is capable of opening / closing the disassembly opening (121); A filter assembly (3) is disposed in the filter cavity (13) and can be disassembled through the disassembly opening (121); as well as, A drive assembly (4) is arranged in the assembly cavity (14), and is used to drive air to flow from the air inlet (111) into the filter cavity (13), and then flow out from the air outlet (112) after passing through the filter assembly (3) and the drive assembly (4) in sequence.

2. The blowing device according to claim 1, characterized in that: One end of the cover body (2) is rotatably connected to the sunshade (12), and the other end of the cover body (2) is detachably connected to the sunshade (12).

3. The blowing device according to claim 2, characterized in that: The blowing device further comprises a snap assembly (5), wherein the snap assembly (5) is arranged on one of the cover body (2) and the sunshade (12), and the other of the cover body (2) and the sunshade (12) is provided with a snap-fitting portion (122) capable of snapping together with the snap assembly (5).

4. The blowing device according to claim 3, characterized in that: The buckle assembly (5) comprises a snap-fitting member (51) which is arranged on the cover body (2) and is capable of sliding relative to the cover body (2); the snap-fitting member (51) comprises a snap-fitting surface (511); when the cover body (2) is in a closed state, the snap-fitting surface (511) is snap-fitted with the snap-fitting portion (122).

5. The blowing device according to claim 4, characterized in that: The clamping member (51) further comprises a guide surface (512) facing away from the clamping surface (511); and / or, The cover body (2) is provided with a slide groove (21), the clamping member (51) is slidably arranged in the slide groove (21), and the buckle assembly (5) further comprises an elastic member (52) arranged between the clamping member (51) and the bottom wall of the slide groove (21); and / or, One of the inner wall of the slide groove (21) and the clamping member (51) is provided with a limiting slot hole (22), and the other is provided with a limiting portion (513) protruding therefrom, and the limiting portion (513) is slidably disposed in the limiting slot hole (22).

6. The blowing device according to claim 1, characterized in that: The air inlet (111) is arranged on the bottom wall of the bottom shell (11); the filter assembly (3) comprises a shell (31), a filter element (32) and a first sealing element (34); the filter element (32) is arranged in the shell (31); The first sealing member (34) is arranged between the outer shell (31) and the bottom shell (11), and / or the first sealing member is arranged between the outer shell (31) and the sunshade (12).

7. The blowing device according to claim 6, characterized in that: The bottom wall of the bottom shell (11) is provided with a first sealing rib (113) located at the periphery of the air inlet (111) and inclined toward the assembly and disassembly opening (121); the first sealing member (34) comprises a second sealing rib (341) provided at the bottom of the outer shell (31) and inclined toward a side away from the assembly and disassembly opening (121); In the closed state, the cover body (2) pushes the filter assembly (3) toward a side wall of the filter cavity (13) away from the disassembly opening (121), and the first sealing rib (113) fits with the second sealing rib (341).

8. The blowing device according to claim 7, characterized in that: The filter assembly (3) further comprises a handle (33) arranged on the side of the shell (31) facing the disassembly opening (121), and an abutment portion (23) is protrudingly provided on the inner wall of the cover body (2). In the closed state, the abutment portion (23) pushes the handle (33) toward a side wall of the filter cavity (13) away from the disassembly opening (121).

9. The blowing device according to claim 1, characterized in that: The sunshade (12) and the bottom shell (11) are arranged to form the filter cavity (13) and the assembly cavity (14), and the sunshade (12) is provided with a communication port (123) communicating with the filter cavity (13) and the assembly cavity (14); and / or, The housing (1) is further provided with a rectifying cavity (15), the two ends of which are respectively connected to the assembly cavity (14) and the air outlet (112), and the air blowing device further comprises a rectifying assembly (6) arranged in the rectifying cavity (15).

10. A camera, characterized in that: include: The camera body (7) is provided with a viewing window (71); as well as, The air blowing device according to any one of claims 1 to 9 is arranged on the top of the camera body (7), and the air outlet (112) faces the viewing window (71).

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