Camera system

Abstract

The utility model provides a camera system. The camera system comprises a camera, a mixing cavity structure, a liquid storage tank, an air injection piece and a connecting pipe. The mixing cavity is provided with an outlet, and the liquid inlet through hole and the air inlet through hole are communicated with the mixing cavity. The liquid storage tank is provided with a liquid storage cavity communicated with the mixing cavity, and the liquid storage tank sprays liquid into the mixing cavity through the liquid inlet through hole. And the gas spraying piece sprays gas into the mixing cavity through the gas inlet through hole. Two opposite ends of the connecting pipe are respectively communicated with the mixing cavity and the liquid storage cavity. And when the air spraying piece sprays air into the mixing cavity, the air pressure at the liquid inlet through hole is reduced, and liquid in the liquid storage tank enters the mixing cavity through the connecting pipe under the action of atmospheric pressure. A gas-liquid mixture sprayed out of the mixing cavity is used for flushing dirty foreign matters and cleaning a camera, especially a window, so that attachments can be effectively removed; liquid is conveyed through the air pressure difference, gas-liquid mixed high-speed airflow is achieved, additional power sources are reduced, the structure is simple, and cost is low.

Description

Technical Field

[0001] This application relates to the field of surveillance technology, and more particularly to a camera system. Background Technology

[0002] Data acquisition devices such as cameras or lidar, when used for extended periods in security and surveillance applications, accumulate dust, mud, rain, and fog on their outer surfaces, obstructing the sensing area of ​​the camera or radar and affecting the normal functioning of the equipment. Existing cleaning methods are ineffective. Utility Model Content

[0003] This application provides a camera system.

[0004] This application provides a camera system including a camera, a mixing chamber structure, a liquid storage tank, a jetting component, and a connecting pipe. The mixing chamber structure forms a mixing chamber with an outlet and a liquid inlet and an air inlet communicating with the mixing chamber. The liquid storage tank has a storage cavity communicating with the mixing chamber. The liquid storage tank sprays liquid into the mixing chamber through the liquid inlet, and the jetting component sprays gas into the mixing chamber through the air inlet. The two opposite ends of the connecting pipe are respectively connected to the mixing chamber and the liquid storage cavity. When the jetting component sprays gas into the mixing chamber, the air pressure at the liquid inlet decreases, and the liquid in the liquid storage tank enters the mixing chamber through the connecting pipe under atmospheric pressure.

[0005] The camera system of this application cleans the camera, especially the viewing window, by flushing away dirt and foreign objects through a gas-liquid mixture ejected from the mixing chamber, effectively removing adhering substances; it utilizes air pressure difference to transport liquid, achieving high-speed airflow of gas-liquid mixing, reducing the need for additional power sources, and the camera system has a simple structure and low cost. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the first embodiment of the cleaning device of this application;

[0007] Figure 2 This is a schematic diagram of a second embodiment of the cleaning device of this application;

[0008] Figure 3 yes Figure 2 An exploded view of the cleaning device shown;

[0009] Figure 4 yes Figure 2 The top view of the cleaning device after the first cover is removed;

[0010] Figure 5 yes Figure 4 A schematic cross-sectional view of the cleaning device along line AA;

[0011] Figure 6 yes Figure 5 An enlarged view of the prescription box portion of the cross-sectional schematic diagram shown;

[0012] Figure 7 yes Figure 4 A schematic cross-sectional view of the cleaning device along line BB shown;

[0013] Figure 8 yes Figure 7 An enlarged view of the circled portion at point B in the cross-sectional schematic diagram shown;

[0014] Figure 9 yes Figure 7 An enlarged view of the circled portion at point C in the cross-sectional schematic diagram shown;

[0015] Figure 10 This is a cross-sectional schematic diagram of another embodiment of the cleaning device of this application;

[0016] Figure 11 yes Figure 3 A schematic diagram of the first connecting pipe of the cleaning device shown;

[0017] Figure 12 yes Figure 3 A schematic diagram of the second connecting pipe of the cleaning device shown;

[0018] Figure 13 yes Figure 3 A schematic diagram of the control valve assembly of the cleaning device shown;

[0019] Figure 14 yes Figure 13 A schematic cross-sectional view of the control valve assembly along line CC is shown.

[0020] Figure 15 yes Figure 3 A schematic diagram of the air pump assembly of the cleaning device shown;

[0021] Figure 16 yes Figure 3 A schematic diagram of the housing of the cleaning device shown;

[0022] Figure 17 yes Figure 16 A top view of the casing shown;

[0023] Figure 18 yes Figure 16 The bottom view of the casing shown;

[0024] Figure 19 yes Figure 2 The bottom view of the cleaning device after the second cover plate has been removed;

[0025] Figure 20 yes Figure 2The diagram shows the cleaning device after it has been fixed to the mounting bracket.

[0026] Figure 21 This is an exploded view of the third embodiment of the cleaning device of this application;

[0027] Figure 22 This is another exploded view of the third embodiment of the cleaning device of this application;

[0028] Figure 23 yes Figure 21 The top view of the cleaning device after the first cover plate has been removed following assembly;

[0029] Figure 24 yes Figure 23 A schematic cross-sectional view of the cleaning device along line DD;

[0030] Figure 25 yes Figure 24 An enlarged view of the D-squared portion of the cross-sectional schematic diagram shown;

[0031] Figure 26 yes Figure 23 A schematic cross-sectional view of the cleaning device along line EE shown.

[0032] Figure 27 yes Figure 26 An enlarged view of the circled portion at point E in the cross-sectional schematic diagram shown;

[0033] Figure 28 yes Figure 22 A schematic diagram of the connecting pipes of the cleaning device shown;

[0034] Figure 29 yes Figure 2 A schematic diagram of the housing of the cleaning device shown;

[0035] Figure 30 yes Figure 29 A top view of the casing shown;

[0036] Figure 31 yes Figure 21 The bottom view of the cleaning device after the second cover plate has been removed after assembly is shown. Detailed Implementation

[0037] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0038] If there are terms related to directional indication or positional relationship in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial direction, radial direction, circumferential direction, etc.), such terms are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only for the purpose of convenient description and cannot be construed as indicating or implying relative importance.

[0039] Referring Figure 1 , in the first embodiment, the camera system of the embodiment of the present application includes a camera and a cleaning device 100. The cleaning device 100 includes a mixing cavity structure 11, a liquid storage tank 12 and a gas jetting member 2.

[0040] The mixing cavity structure 11 defines a mixing cavity 111 provided with an outlet 1110, and a liquid inlet through hole 112 and a gas inlet through hole 113 communicating with the mixing cavity 111. The liquid storage tank 12 is provided with a liquid storage cavity 121 communicating with the mixing cavity 111, and the liquid storage tank 12 sprays liquid into the mixing cavity 111 through the liquid inlet through hole 112. The gas jetting member 2 sprays gas into the mixing cavity 111 through the gas inlet through hole 113. The distance between the liquid inlet through hole 112 and the outlet 1110 is less than the distance between the gas inlet through hole 113 and the outlet 1110. The cleaning device 100 rinses dirt and foreign matters with the gas-liquid mixture sprayed in the mixing cavity 111, and can clean the object to be cleaned more effectively, having a better cleaning effect.

[0041] In addition to being applied to monitoring products to keep the window clean and reduce image interference, the cleaning device 100 of the embodiment of the present application can also be applied to products that need to be cleaned, such as lenses, sensors, etc. on automobiles, such as lenses and radar sensors on automobiles. The present application does not limit the application scenarios of the cleaning device 100. The liquid stored in the liquid storage cavity 121 can be water, cleaning liquid or a mixture of water and cleaning liquid. The present application does not limit the types of liquids.

[0042] In some embodiments, the gas jetting member 2 can be an air pump or a container for storing gas. The present application does not limit the type of the gas jetting member 2, as long as it can jet gas into the mixing cavity 111.

[0043] In some embodiments, the mixing chamber 111 extends along a first direction D1, and both the liquid inlet 112 and the air inlet 113 extend along a second direction D2. The liquid inlet 112 communicates with the liquid storage tank 12, and an angle is formed between the first and second directions. There is a gap between the axis of the liquid inlet 112 and the axis of the air inlet 113. In some embodiments, the first direction D1 is perpendicular to the second direction D2. This application does not limit the angle between the first direction D1 and the second direction D2.

[0044] Figures 2 to 20 This is an illustration of the cleaning apparatus 100 according to the second embodiment of this application. (See attached image.) Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, in the second embodiment, the cleaning device 100 includes a housing 1 that forms a mixing chamber 111. A liquid storage tank 12 is part of the housing 1. The cleaning device 100 includes a connecting pipe 3 that connects the liquid storage chamber 121 and the mixing chamber 111, and fluid in the liquid storage chamber 121 flows through the connecting pipe 3 into the mixing chamber 111.

[0045] The housing 1 also includes a gas storage chamber 114, with at least a portion of the connecting pipe 3 located within it. When the gas pressure within the gas storage chamber 114 changes, it compresses the connecting pipe 3, spraying liquid into the mixing chamber 111. To control the amount of liquid used, a high-pressure gas storage process is utilized to compress the connecting pipe 3, with the amount of liquid extruded being the volume reduction after deformation of the connecting pipe 3. Liquid usage control utilizes the method of supplying liquid by compressing the connecting pipe 3 with high-pressure gas, achieving a minimal liquid consumption and effectively reducing additional maintenance work such as manual liquid addition.

[0046] In some embodiments, when the gas storage chamber 114 is pressurized, the liquid in the connecting pipe 3 is forced into the mixing chamber 111. When gas is supplied to the mixing chamber 111, the gas disperses the small liquid droplets into a water mist, forming a gas-liquid mixture that is sprayed out from the outlet 1110. The cleaning device 100 employs a liquid-gas combination method, using a small amount of liquid to form a gas-liquid mixture, which cleans the object under high pressure. The liquid wetting reduces adhesion, and the high-pressure gas blowing removes the liquid, thereby improving the cleaning effect.

[0047] In some embodiments, outlet 1110 may be connected to a pipe of appropriate length or various nozzles to clean the object more effectively, and this application does not limit this.

[0048] In some embodiments, the connecting pipe 3 located in the gas storage cavity 114 is a flexible hose, so that the connecting pipe 3 can be deformed when squeezed by high-pressure gas, ensuring that the mixing cavity 111 can eject liquid normally, and the ejected liquid volume is the volume reduction amount after the deformation of the flexible hose. When the flexible hose is deformed by high-pressure gas, the volume inside the flexible hose becomes smaller, and the ejected liquid volume is equal to the volume reduction amount of the flexible hose. Since the volume of the flexible hose itself is small, the volume reduction amount is also small, so the ejected liquid volume is also small, thus achieving the goal of supplying a small amount of liquid. When it is necessary to adjust the liquid supply amount as needed, it can be achieved by adjusting the length and cross-sectional size of the flexible hose.

[0049] In some embodiments, the liquid storage cavity 121 and the mixing cavity 111 can also be directly connected, saving the connecting pipe 3 and space. In some embodiments, the housing 1 encloses the liquid storage cavity 121, with a compact structure and saving the processing and assembly processes.

[0050] Refer Figure 4 、 Figure 5 、 Figure 6 and Figure 7 In some embodiments, the housing 1 includes a partition 15 and a first side wall 16 extending from the partition 15. The partition 15 and the first side wall 16 enclose the gas storage cavity 114 and the liquid storage cavity 121. In some embodiments, the opening directions of the gas storage cavity 114 and the liquid storage cavity 121 are the same.

[0051] In some embodiments, the mixing cavity 111 is provided on the partition 15. In some embodiments, the partition 15 includes a first partition 151 and a second partition 152. The first partition 151 and a part of the first side wall 16 enclose the liquid storage cavity 121, and the second partition 152 and a part of the first side wall 16 enclose the gas storage cavity 114. The mixing cavity 111 is provided on the second partition 152. In some embodiments, the heights of the first partition 151 and the second partition 152 can be the same or different, and can be adjusted according to actual needs. This application does not limit this.

[0052] Refer Figure 7 As shown in FIG. [reference number], the second partition 152 is higher than the first partition 151, making the depth of the liquid storage cavity 121 deeper and the volume larger, so that more liquid can be stored, the usage time can be extended, and the increase in maintenance costs caused by frequent liquid addition can be avoided.

[0053] Refer Figure 2 、 Figure 3 、 Figure 4 and Figure 5, in some embodiments, the cleaning device 100 includes a first cover plate 41 fixed to the first side wall 16 and a seal 42 located between the first cover plate 41 and the first side wall 16 to seal the air storage cavity 114 and the liquid storage cavity 121. The first side wall 16 is provided with a receiving groove 161 for receiving the seal 42 to increase the stability and sealing performance of the seal 42. The first cover plate 41 and the first side wall 16 can be fixed by a first locking screw 410, or can be fixed by means of bonding, welding, snap connection, etc.

[0054] The first cover plate 41 is provided with a liquid adding hole 411 communicating with the liquid storage cavity 121, so that the liquid can be added into the liquid storage cavity 121 without disassembling the first cover plate 41, reducing the maintenance cost. In some embodiments, a rubber plug can be provided at the liquid adding hole 411 to block the liquid adding hole 411.

[0055] See Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 9 、 Figure 11 And Figure 12 , in some embodiments, the connecting pipe 3 includes a first connecting pipe 31 and a second connecting pipe 32 that are connected. At least a part of the second connecting pipe 32 is located in the air storage cavity 114. In some embodiments, the axis L 3 of the second connecting pipe 32 is perpendicular to the axis L 2 of the liquid inlet through hole 112.

[0056] In some embodiments, the partition plate 15 is provided with an assembly hole 150. One end of the first connecting pipe 31 and one end of the second connecting pipe 32 are both assembled to the assembly hole 150 to realize the connection between the first connecting pipe 31 and the second connecting pipe 32. The assembly hole 150 is close to the mixing cavity 111 to reduce the length of the connecting pipe 3, and also reduce the liquid flow path. The fluid can quickly enter the mixing cavity 111, and can also make the liquid exhausted as much as possible, preventing the situation that there is still liquid remaining and normal liquid spraying cannot be carried out, and reducing the maintenance cost.

[0057] In some embodiments, the opposite ends of the first connecting pipe 31 are connected with a first joint 33 and a second joint 34; the opposite ends of the second connecting pipe 32 are connected with a third joint 35 and a fourth joint 36. The first joint 33, the second joint 34, the third joint 35 and the fourth joint 36 are all threadedly connected to the partition plate 15.

[0058] In some embodiments, the first joint 33 is threadedly connected to the first partition 151, the assembly hole 150 is provided in the second partition 152, and the second joint 34, the third joint 35, and the fourth joint 36 are threadedly connected to the second partition 152. In some embodiments, both the second joint 34 and the third joint 35 are assembled into the assembly hole 150, and their assembly directions are opposite. In some embodiments, a check valve 321 is provided on the second connecting pipe 32 to prevent the liquid in the mixing chamber 111 from flowing back.

[0059] In some embodiments, the check valve 321 can also be provided on the first connecting pipe 31, or a check valve 321 can be provided on each of the first connecting pipe 31 and the second connecting pipe 32. In some embodiments, the check valve 321 can also be provided on one of the first joint 33, the second joint 34, the third joint 35, and the fourth joint 36; or, multiple check valves 321 are respectively provided on multiple ones of the first joint 33, the second joint 34, the third joint 35, and the fourth joint 36.

[0060] See Figure 7 and Figure 8 [[ID=**10**]]In some embodiments, the partition 15 is provided with a through hole 155, the first joint 33 is inserted into the through hole 155, the second joint 34 and the third joint 35 are inserted into the assembly hole 150, and the fourth joint 36 is inserted into the liquid inlet through hole 112.

[0061] In some embodiments, bosses can also be provided at positions corresponding to the through hole 155, the assembly hole 150, and the liquid inlet through hole 112. The opposite ends of the first connecting pipe **31** are respectively sleeved and fixed on the bosses, and the opposite ends of the second connecting pipe 32 are respectively sleeved and fixed on the bosses to fix the first connecting pipe 31 and the second connecting pipe 32. [[ID=**14**]] [[ID=**15**]]

[0062] In some embodiments, the through hole 155 is provided in the first partition 151.

[0063] In some embodiments, the connecting pipe 3 can be a single pipe, one end of which is fixed at the through hole **155**, and the other end passes through the assembly hole 150 and is fixed at the liquid inlet through hole 112. The assembly hole 150 is sealed to prevent air leakage.

[0064] See Figure 3 , Figure 7 , Figure 8 and Figure 11 In some embodiments, the direction in which the first joint 33 is assembled into the through hole 155 is the same as the direction in which the second joint 34 is assembled into the assembly hole 150. This not only facilitates the assembly of the first connecting pipe 31 and the first connecting pipe 31 has no winding phenomenon, but also makes the liquid in the liquid storage chamber 121 flow smoothly when passing through the first connecting pipe 31, and can also avoid damage to the first connecting pipe 31 at the bending point, so as to extend the service life of the first connecting pipe 31. Note: There were two references to "参" in the original text which seem to be incomplete or incorrect. I've left them as they are in the translation. Also, there were some references to "31" in the text that seemed incomplete in the original, and I've tried to make sense of them in the translation but they might need further clarification in the original context.

[0065] Reference Figure 3 、 Figure 4 、 Figure 6 and Figure 11 In some embodiments, the direction in which the third joint 35 is assembled into the assembly hole 150 is the same as the direction in which the fourth joint 36 is assembled into the liquid inlet through hole 112. This not only facilitates the assembly of the second connecting pipe 32 but also prevents the second connecting pipe 32 from getting entangled. This not only ensures smooth flow of the liquid in the liquid storage cavity 121 through the second connecting pipe 32 but also avoids damage to the second connecting pipe 32 at the bent portions, thereby extending the service life of the second connecting pipe 32.

[0066] In some embodiments, the opposite ends of the first connecting pipe 31 are assembled to the housing 1 in a direction opposite to the depth direction of the liquid storage tank 12, and the opposite ends of the second connecting pipe 32 are assembled to the housing 1 in the depth direction of the liquid storage cavity 121. Figure 7 The depth direction D of the middle liquid storage tank 12 is the direction from top to bottom, and the direction opposite to the depth direction of the liquid storage tank 12 is the direction from bottom to top.

[0067] Reference Figure 3 、 Figure 5 、 Figure 6 and Figure 9 In some embodiments, the jet component 2 includes a control valve assembly 5. The control valve air inlet 51 of the control valve assembly 5 is connected to the air storage cavity 114, and the control valve air outlet 52 of the control valve assembly 5 is connected to the mixing cavity 11l. The control valve air outlet 52 is connected to the air inlet through hole 113.

[0068] In some embodiments, the control valve air outlet 52 is close to the end of the mixing cavity 111 opposite to the outlet 1110. In some embodiments, the partition plate 15 is provided with a first ventilation hole 153 connected to the control valve air inlet 51 of the control valve assembly 5. The cleaning device 100 includes a first sealing ring 71 located between the control valve assembly 5 and the partition plate 15. The first sealing ring 7I is disposed at the control valve air inlet 51 to prevent air leakage from the gap between the control valve assembly 5 and the partition plate 15.

[0069] In some embodiments, the first sealing ring 71 is fixed to the control valve assembly 5, and the first sealing ring 71 can also be fixed to the partition plate 15. In some embodiments, the first ventilation hole 153 is provided in the second partition plate 152, and the first sealing ring 71 is located between the second partition plate 152 and the control valve assembly 5.

[0070] In some embodiments, the first ventilation hole 153 and the intake through hole 113 are arranged in the area of the partition 15 for supporting the control valve assembly 5. The first ventilation hole 153 is directly connected to the control valve intake port 51, and the intake through hole 113 is directly connected to the control valve outlet port 52. The first ventilation hole 153 and the intake through hole 113 are coplanar and arranged at intervals, eliminating the need for trachea, resulting in a simpler structure, space savings, and improved space utilization. It can also prevent trachea leakage and reduce the probability of leakage due to excessive connection points, thereby reducing maintenance costs.

[0071] In some embodiments, the cleaning device 100 includes a second sealing ring 72 located between the control valve assembly 5 and the partition 15. The second sealing ring 72 is arranged at the control valve outlet port 52 to prevent air leakage through the gap between the control valve assembly 5 and the partition 15. In some embodiments, the second sealing ring 72 is fixed to the control valve assembly 5, and the second sealing ring 72 can also be fixed to the partition 15. In some embodiments, the second sealing ring 72 is located between the second partition 152 and the control valve assembly 5.

[0072] See Figure 13 and Figure 14 , in some embodiments, the control valve intake port 51 and the control valve outlet port 52 are commonly arranged on one surface of the control valve assembly 5. The control valve intake port 51 is directly connected to the gas storage cavity 114, and the control valve outlet port 52 is directly connected to the mixing cavity ......

[0073] In some embodiments, the control valve intake port 51 and the control valve outlet port 52 are arranged at intervals on the bottom end surface of the control valve assembly 5.

[0074] ​​​​​​​​​​​​​

[0077] In some embodiments, the airflow with the first pressure output by the air pump assembly 6 flows through the control valve air inlet 51, and then flows out from the control valve air outlet 52 in response to the control instruction of the control valve assembly 5.

[0078] Refer Figure 3 , Figure 5 and Figure 15 , in some embodiments, the partition 15 is provided with a second ventilation hole 154 communicating with the air pump air outlet 61 of the air pump assembly 6. The cleaning device 100 includes a third sealing ring 73 located between the air pump assembly 6 and the partition 15. The third sealing ring 73 is arranged at the air pump air outlet 61 to prevent air leakage from the gap between the air pump assembly 6 and the partition 15. In some embodiments, the third sealing ring 73 is fixed to the air pump assembly 6, and the third sealing ring 73 can also be fixed to the partition 15.

[0079] In some embodiments, the second ventilation hole 154 is arranged on the second partition 152, and the third sealing ring 73 is located between the second partition 152 and the air pump assembly 6.

[0080] In some embodiments, the partition 15 is provided with a second ventilation hole 154 directly communicating with the air pump air outlet 61 in the area for supporting the air pump assembly 6. The gas generated by the air pump assembly 6 is directly input into the air storage cavity 114 surrounded by the housing 1 through the air pump air outlet 61, so that in response to the control instruction of the control valve assembly 5, part of the gas in the air storage cavity 114 flows into the control valve assembly 5 through the control valve air inlet 51 of the control valve assembly 5.

[0081] In some embodiments, the control valve assembly 5 and the air pump assembly 6 are located on the same side of the partition 15, and the air pump assembly 6 and the air storage cavity 114 are located on opposite sides of the partition 15. In some embodiments, the air pump assembly 6 and the air storage cavity 114 are located on opposite sides of the second partition 152. In Figure 5 , the control valve assembly 5 and the air pump assembly 6 are located on the left side of the second partition 152, and the air storage cavity 114 is located on the right side of the second partition 152.

[0082] Refer Figure 3 , Figure 5 , Figure 7 and Figure 16 , Figure 17 , Figure 18 and Figure 19 , in some embodiments, the housing 1 includes a second side wall 17 extending from the partition 15. The partition 15 and the second side wall 17 enclose a receiving cavity 171 for receiving the control valve assembly 5 and the air pump assembly 6. The cleaning device 100 includes a second cover plate 43, and the second cover plate 43 is fixed to the second side wall 17 to close the receiving cavity 171.

[0083] The housing 1 includes a first end with a receiving cavity 171 and a second end with a gas storage cavity 114. The control valve assembly 5 and the air pump assembly 6 are both arranged in the receiving cavity 171, and the mixing cavity structure 11 is arranged in the gas storage cavity 114.

[0084] The second cover plate 43 and the second side wall 17 can be fixed by the second locking screw 430, or can be fixed by means such as bonding, welding, or snap connection.

[0085] Refer Figure 5 to Figure 7 , the depths of the receiving cavity 171 and the liquid storage cavity 121 constitute the height of the housing 1. The depth of the liquid storage cavity 121 is not less than half of the height of the housing 1, and the liquid storage cavity 121 can store more liquid. A partition 15 is arranged between the receiving cavity 171, the gas storage cavity 114 and the liquid storage cavity 121 to separate the receiving cavity 171 from the gas storage cavity 114 and the receiving cavity 171 from the liquid storage cavity 121.

[0086] In some embodiments, a second partition 152 is arranged between the receiving cavity 171 and the gas storage cavity 114, and a second partition 152 is arranged between the receiving cavity 171 and the liquid storage cavity 121. The heights of the first partition 151 and the second partition 152 are different, so that the depth of the gas storage cavity 114 is less than the depth of the liquid storage cavity 121.

[0087] In some embodiments, the housing 1 is defined as: there is no flow hole 155 communicating with the connecting pipe 3 on the circumferential wall extending along the depth direction of the liquid storage tank 12. In some embodiments, the flow hole 155 is arranged on the first partition 151 for assembling the first joint 33 of the first connecting pipe 31. The liquid storage tank 12 discharges liquid from the bottom, which can make the liquid in the liquid storage tank 12 be used up as much as possible to reduce the maintenance work of adding liquid.

[0088] Refer Figure 5 and Figure 19 , the control valve assembly 5 and the air pump assembly 6 are located below the second partition 152 to reduce the occupation of the volume of the liquid storage cavity 121 by the control valve assembly 5 and the air pump assembly 6, so that the liquid storage cavity 121 can be as large as possible to hold as much liquid as possible.

[0089] Refer Figure 19 , in some embodiments, the air pump assembly 6 and the control valve assembly 5 form an L shape, the bottom end of the liquid storage tank 12 is located at the corner of the L shape, and the liquid storage tank 12 and the control valve assembly 5 are located on one side of the air pump assembly 6. The structure is more compact, which is beneficial to the miniaturization of the cleaning device 100.

[0090] Refer Figure 5 to Figures 18 to 19, in some embodiments, the control valve assembly 5 is fixed to the second partition plate 152 by the first screw 50, and the first assembly hole 1520 for assembling the first screw 50 is provided on the second partition plate 152. The control valve assembly 5 and the second partition plate 152 can also be fixed by means of snap connection or welding.

[0091] In some embodiments, the air pump assembly 6 is fixed to the second partition plate 152 by the second screw 60, and the second assembly hole 1521 for assembling the second screw 60 is provided on the second partition plate 152. The air pump assembly 6 and the second partition plate 152 can also be fixed by means of snap connection or welding.

[0092] In some embodiments, an embodiment of the present application provides a camera system (not shown), including a camera (not shown) and a cleaning device 100. The camera includes a window (not shown), and the cleaning device 100 sprays liquid to the window through the mixing chamber 111 to clean the window.

[0093] In some embodiments, the camera system is configured such that: the gas with the first pressure flows out through the control valve air outlet 52 and the air inlet through hole 113, the liquid output by the liquid storage tank 12 flows out through the liquid inlet through hole 112, the gas constitutes a pressure on the liquid, and then the gas and the liquid are mixed in the mixing chamber 111, and the mixed gas and liquid flow out from the opening 1110 of the mixing chamber 111 to the window of the camera system at a preset pressure to clean the window.

[0094] Refer Figure 20 , the cleaning device 100 includes a mounting bracket 9 fixed to the housing 1. The mounting bracket 9 can be fixed to the camera to achieve the fixation of the cleaning device 100. In some embodiments, the mounting bracket 9 and the housing 1 are fixed by mounting screws 90. The mounting bracket 9 and the housing 1 can also be fixed by means of snap connection or welding. <00003​​​​​, in some embodiments, the present application provides a camera system, comprising: a camera, a mixing chamber structure 11, a liquid storage tank 12, and a gas jetting member 2. The mixing chamber structure 11 defines a mixing chamber 111 provided with an outlet 1110, and a liquid inlet through hole 112 and a gas inlet through hole 113 communicating with the mixing chamber 111. The liquid storage tank 12 is provided with a liquid storage chamber 121 communicating with the mixing chamber 111, and the liquid storage tank 12 jets liquid into the mixing chamber 111 through the liquid inlet through hole 112. The gas jetting member 2 jets gas into the mixing chamber 111 through the gas inlet through hole 113. The distance between the liquid inlet through hole 112 and the outlet 1110 is less than the distance between the gas inlet through hole 113 and the outlet 1110.

[0098] Refer Figure 7 , in some embodiments, the camera system comprises a gas storage chamber​​​​​​​​​​​​​​​​​​​​​​​​​​, in some embodiments, the housing 1 includes a partition 15, and the partition 15 includes a first partition 151 and a second partition 152. The first partition 151 is disposed on a side opposite to the opening direction of the liquid storage cavity 121, and the second partition 152 is disposed on a side opposite to the opening direction of the gas storage cavity 114. The surfaces of the first partition 151 and the second partition 152 are parallel to the width direction of the liquid storage cavity 121.

[0104] Refer Figure 10 , in some embodiments, when the first partition 151 and the second partition 152 are an integral partition, based on the first cover plate 41, the liquid storage cavity 121 and the gas storage cavity 114 have the same depth; Refer Figure 7 , when the first partition 151 and the second partition 152 are non-integral partitions, based on the first cover plate 41, the depth of the liquid storage cavity 121 is determined by the first partition 151, and the depth of the gas storage cavity 114 is determined by the second partition 152.

[0105] Refer Figure 5 , in some embodiments, the axis L1 of the liquid inlet through hole 112 and the axis L2 of the gas inlet through hole 113 both extend along the depth direction D of the liquid storage cavity 121.

[0106] Refer Figure 7 , in some embodiments, the liquid storage cavity 121 is formed by the housing 1 and the first partition 151. In some embodiments, the housing 1 includes a first side wall 16. The first partition 151 and the first side wall 16 enclose the liquid storage cavity 121, and the second partition and the first side wall 16 enclose the gas storage cavity 114.

[0107] Refer Figure 7 And Figure 9 , in some embodiments, the mixing cavity 111 is disposed on the second partition 152.

[0108] Refer Figure 3 And Figure 7 , in some embodiments, the first cover plate 41 is fixed to the first side wall 16.

[0109] Refer [[ID=​​​​​​​​​, in some embodiments, the jet component 2 includes a control valve assembly 5. The control valve air inlet 51 of the control valve assembly 5 is communicated with the air storage cavity 114, and the control valve air outlet 52 of the control valve assembly 5 is communicated with the mixing cavity 111.

[0111] Refer Figure 5 , in some embodiments, the camera system includes an air pump assembly 6. The air pump assembly 6 is communicated with the air storage cavity 114, and the air pump assembly 6 blows gas into the air storage cavity 114. In some embodiments, the control valve assembly 5 and the air pump assembly 6 are located on the same side, and the air pump assembly 6 and the air storage cavity 114 are located on opposite sides.

[0112] Refer Figure 7 And Figure 9 , in some embodiments, the partition 15 is provided with a first ventilation hole 153 communicated with the control valve air inlet 51 of the control valve assembly 5. The camera system includes a first sealing ring 71 located between the control valve assembly 5 and the partition 15. The first sealing ring 71 is arranged at the control valve air inlet 51 to prevent air leakage from the gap between the control valve assembly 5 and the partition 15.

[0113] In some embodiments, the camera system includes a second sealing ring 72 located between the control valve assembly 5 and the partition 15. The second sealing ring 72 is arranged at the control valve air outlet 52 to prevent air leakage from the gap between the control valve assembly 5 and the partition 15.

[0114] Refer Figure 5 , in some embodiments, the partition 15 is provided with a second ventilation hole 154 communicated with the air pump air outlet 61 of the air pump assembly 6. The camera system includes a third sealing ring 73 located between the air pump assembly 6 and the partition 15. The third sealing ring 73 is arranged at the air pump air outlet 61 to prevent air leakage from the gap between the air pump assembly 6 and the partition 15.

[0115] In some embodiments, the housing 1 includes a second side wall 17. The partition 15 and the second side wall 17 enclose a receiving cavity 171 for receiving the control valve assembly 5 and the air pump assembly 6.

[0116] Refer Figure 4 , in some embodiments, the opening of the air storage cavity 114 presents a hexagonal shape of L type, and the opening of the liquid storage cavity 121 presents a quadrilateral shape of rectangle.

[0117] Refer Figures 5 to 7 And Figure 9 , in some embodiments, the jet component 2 includes a control valve assembly 5. The control valve air inlet 51 of the control valve assembly 5 is communicated with the air storage cavity 114, and the control valve air outlet 52 of the control valve assembly 5 is communicated with the mixing cavity 111; or, the camera system includes an air pump assembly 6. The air pump assembly 6 is communicated with the air storage cavity 116, and the air pump assembly 6 blows gas into the air storage cavity 114.

[0118] Figures 21 to 31 This is a diagram of the cleaning device 100 according to the third embodiment of the present application. The working principle of the mixing chamber structure 11 of the cleaning device 100 in the third embodiment is the same as that of the mixing chamber structure 11 of the cleaning device 100 in the second embodiment. The same parts are only marked with the same reference numerals and will not be described in detail below. Only the differences between the cleaning device 100 in the third embodiment and the cleaning device 100 in the second embodiment will be introduced.

[0119] Refer Figures 21 to 28 , compared with the cleaning device 100 in the second embodiment, the cleaning device 100 in the third embodiment cancels the second connecting pipe 32, and the liquid storage chamber 121 and the mixing chamber 111 are connected through a connecting pipe 37.

[0120] The two opposite ends of the connecting pipe 37 are respectively connected to the mixing chamber 111 and the liquid storage chamber 121. When the jetting member 2 jets gas into the mixing chamber 111, the air pressure at the liquid inlet through hole 112 decreases, and the liquid in the liquid storage tank 12 enters the mixing chamber 111 through the connecting pipe 37 under the action of atmospheric pressure.

[0121] The cleaning device 100 in the third embodiment uses the air pressure difference to transport the liquid, realizes a high-speed air flow for gas-liquid mixing, reduces the additional power source, has a simple structure of the camera system, and has a lower cost.

[0122] In some embodiments, to ensure that the water in the liquid storage tank 12 does not flow out automatically under normal conditions, the highest liquid level of the liquid in the liquid storage chamber 121 is lower than that of the mixing chamber 111.

[0123] The highest liquid level of the liquid in the liquid storage chamber 121 being lower than that of the mixing chamber 111 can be that the highest liquid level of the liquid in the liquid storage chamber 121 is lower than the lowest end of the mixing chamber 111, or lower than the top end of the mixing chamber 111.

[0124] In some embodiments, the liquid storage chamber 121 and the mixing chamber 111 can also be directly connected, saving the connecting pipe 37 and space.

[0125] In some embodiments, the liquid inlet through hole 112 and the air inlet through hole 113 are located on the same side of the mixing chamber 111, and the structure is compact.

[0126] In some embodiments, the liquid inlet through hole 112 and the air inlet through hole 113 are located below the mixing chamber 111, which is convenient for assembling the connecting pipe 37 and can avoid bending of the connecting pipe 37 to extend its service life.

[0127] In some embodiments, the intake through-hole 113 is close to the end of the mixing chamber 111 opposite to the outlet 1110, and the liquid inlet through-hole 112 is located between the intake through-hole 113 and the outlet 1110.

[0128] In some embodiments, the connecting pipe 37 and the liquid storage chamber 121 are located on opposite sides of the partition 15 of the housing 1.

[0129] See Figures 24 to 27 , in some embodiments, the opposite ends of the connecting pipe 37 are connected with a fifth joint 381 and a sixth joint 382, and both the fifth joint 381 and the sixth joint 382 are threadedly connected to the partition 15.

[0130] In some embodiments, the fifth joint 381 is threadedly connected to the first partition 151, and the sixth joint 382 is threadedly connected to the third partition 156.

[0131] In some embodiments, a check valve 321 is provided on the connecting pipe 37 to prevent the high-pressure gas in the mixing chamber 111 from entering the liquid storage chamber 121.

[0132] In some embodiments, the check valve 321 can also be provided on one of the fifth joint 381, the sixth joint 382 and the connecting pipe 37; or, multiple check valves are respectively provided on the fifth joint 381 and the sixth joint 382.

[0133] In some embodiments, the partition 15 is provided with a through-hole 155, the fifth joint 381 is inserted into the through-hole 155, and the sixth joint 382 is inserted into the liquid inlet through-hole 112.

[0134] In some embodiments, bosses can also be provided at positions corresponding to the through-hole 155 and the liquid inlet through-hole 112, and the opposite ends of the connecting pipe 37 are respectively sleeved and fixed on the bosses to fix the connecting pipe 37.

[0135] In some embodiments, the connecting pipe 37 can be a single pipe, one end of which is fixed at the through-hole 155 and the other end is fixed at the liquid inlet through-hole 112.

[0136] In some embodiments, the direction in which the fifth joint 381 is assembled into the through-hole 155 is the same as the direction in which the sixth joint 382 is assembled into the liquid inlet through-hole 112. The fifth joint 381 and the sixth joint 382 are both assembled into the partition 15 along the direction opposite to the depth direction of the liquid storage chamber, which not only facilitates the assembly of the connecting pipe 37 and the connecting pipe 37 has no winding phenomenon, not only makes the liquid in the liquid storage chamber 121 flow smoothly through the connecting pipe 37, but also can avoid damage to the connecting pipe 37 at the bending part, so as to extend the service life of the connecting pipe 37. <​In some embodiments, the fifth joint 381 and the sixth joint 382 are assembled to the housing 1 in a direction opposite to the depth direction of the liquid storage tank 12. Figure 24 The depth direction D of the middle liquid storage tank 12 is the direction from top to bottom, and the direction opposite to the depth direction of the liquid storage tank 12 is the direction from bottom to top.

[0138] Refer Figure 21 , in some embodiments, the first cover plate 41 of the cleaning device 100 includes a substrate portion 412 and a protruding portion 413 extending from the substrate portion 412. The substrate portion 412 is fixed to the first side wall 16 of the housing 1, and the protruding portion 413 extends into the liquid storage cavity 121 to define the highest liquid level of the liquid in the liquid storage cavity 121; at the same time, only the protruding portion 413 can define the highest liquid level of the liquid in the liquid storage cavity 121, without additionally adding a detection device, and the structure of the camera system is simple and the cost is low.

[0139] In some embodiments, a detection device may also be provided to detect the liquid level in the liquid storage cavity 121. When the liquid level reaches the threshold, the control device controls the water inlet in the liquid storage cavity 121 to stop.

[0140] Based on the first cover plate 41, the first depth of the gas storage cavity 114 is determined by the second partition plate 152, and the second depth of the gas storage cavity 114 is determined by the third partition plate 156.

[0141] When the gas jetting member jets gas into the mixing cavity 111, it will always drive the liquid in the liquid storage cavity 121 to be output into the mixing cavity 111. The usage amount of the liquid is limited by the jetting frequency. In high-frequency usage scenarios, the capacity of the water storage tank may not be enough, and an additional pipeline may be provided at the position of the liquid filling hole 411 to connect to an external water tank for water supply.

[0142] In some embodiments, the highest liquid level of the external water tank is lower than the mixing cavity 111.

[0143] Refer Figure 24 , Figures 26 to 27 and Figures 29 to 31 , in some embodiments, the partition plate 15 of the housing 1 includes a first partition plate 151, a second partition plate 152 and a third partition plate 156. The first partition plate 151 and a part of the first side wall 16 enclose the liquid storage cavity 121, the second partition plate 152 and the third partition plate 156 and a part of the first side wall 16 enclose the gas storage cavity 114, and the mixing cavity 111 is arranged on the third partition plate 156. The third partition plate 156 is higher than the second partition plate 152, and the second partition plate 152 is higher than the first partition plate 151.

[0144] The height of the first partition 151 is reduced, resulting in a deeper and larger liquid storage chamber 121, which can store more liquid, extend its service life, and avoid increased maintenance costs due to frequent liquid additions. In order to maximize the depth of the liquid storage chamber 121, the height of the third partition 156 is increased. However, the increase in the height of the third partition 156 reduces the first depth of the gas storage chamber 114. The height of the second partition 152 is reduced to increase the second depth of the gas storage chamber 114. The gas storage chamber 114 has a larger volume and can store more gas.

[0145] In some embodiments, the heights of the first partition 151 and the second partition 152 may be the same or different, and can be adjusted according to actual needs. This application does not impose any restrictions on this.

[0146] The first partition 151 is disposed on the side opposite to the opening direction of the liquid storage chamber 121, the second partition 152 and the third partition 156 are disposed on the side opposite to the opening direction of the gas storage chamber 114, and the surfaces of the first partition 151, the second partition 152 and the third partition 156 are parallel to the width direction of the liquid storage chamber 121.

[0147] In some embodiments, a flow hole 155 is provided on the first partition 151 for assembling the fifth connector 381 of the connecting pipe 37. The liquid storage tank 12 has a bottom outlet, which can make the liquid in the liquid storage tank 12 as much as possible, so as to reduce the maintenance work of adding liquid.

[0148] In some embodiments, a second partition 152 and a third partition 156 are provided between the receiving cavity 171 and the gas storage cavity 114, and a first partition 151 is provided between the receiving cavity 171 and the liquid storage cavity 121. The first partition 151 and the second partition 152 have different heights, so that the depth of the gas storage cavity 114 is less than the depth of the liquid storage cavity 121.

[0149] In some embodiments, the control valve assembly 5 is located below the third partition 156 and the air pump assembly 6 is located below the second partition 152, so as to reduce the encroachment of the control valve assembly 5 and the air pump assembly 6 on the volume of the liquid storage chamber 121, so that the liquid storage chamber 121 can be as large as possible to hold as much liquid as possible.

[0150] In some embodiments, the control valve outlet 52 of the control valve assembly 5 is located near the end of the mixing chamber 111 opposite to the outlet 1110.

[0151] In some embodiments, the control valve assembly 5 is fixed to the third partition 156 by a first screw 50, and the third partition 156 is provided with a first assembly hole 1520 for assembling the first screw 50.

[0152] In some embodiments, the first vent hole 153 is provided in the third partition 156, and the first sealing ring 71 is located between the third partition 156 and the control valve assembly 5.

[0153] In some embodiments, the second sealing ring 72 is located between the third partition 156 and the control valve assembly 5.

[0154] In some embodiments, the air pump assembly 6 is fixed to the second partition 152 by the second screw 60, and the second partition 152 is provided with a second assembly hole 1521 for assembling the second screw 60.

[0155] See Figures 23 to 26 , in some embodiments, the present application provides a camera system, including a mixing chamber structure 11, a liquid storage tank 12, a gas storage chamber 114, a control valve assembly 5, and a connecting pipe �7. The mixing chamber structure 11 includes a mixing chamber 111 provided with an outlet 1110, and a liquid inlet through hole 112 and a gas inlet through hole 113 communicating with the mixing chamber 111. The liquid storage tank 12 is provided with a liquid storage chamber 121 communicating with the mixing chamber 111, and the liquid storage tank 12 sprays liquid into the mixing chamber 111 through the liquid inlet through hole 112. The control valve air inlet 51 of the control valve assembly 5 is communicated with the gas storage chamber 114, the control valve air outlet 52 of the control valve assembly 5 is communicated with the mixing chamber 111, and the opposite ends of the connecting pipe 37 are respectively communicated with the mixing chamber 111 and the liquid storage chamber 121. The camera system is configured such that when the air pressure in the gas storage chamber 114 is not less than the threshold value of the control valve assembly 5, the control valve air outlet 52 conveys gas to the mixing chamber 111, and then the liquid in the liquid storage tank 12 enters the mixing chamber 111 through the connecting pipe 37 under the action of atmospheric pressure.

[0156] See Figures 23 to 26, in some embodiments, the present application provides a camera system, comprising: a housing 1, an air pump assembly 6, a control valve assembly 5, a gas storage chamber 114, a mixing chamber structure 11, a liquid storage tank 12, and a connecting pipe 37. The housing 1 includes a partition plate, and the air pump assembly 6 and the control valve assembly 5 are disposed on one side of the partition plate 15. The gas storage chamber 114 is disposed on the other side of the partition plate 15, and the gas in the gas storage chamber 114 is generated and conveyed by the air pump assembly 6. The mixing chamber structure 11 includes a mixing chamber 111 provided with an outlet 1110, a liquid inlet through hole 112, and a gas inlet through hole 113 communicating with the mixing chamber 111. The liquid storage tank 12 is provided with a liquid storage chamber 121 communicating with the mixing chamber 111, and the liquid storage tank 12 sprays liquid into the mixing chamber 111 through the liquid inlet through hole 112. Opposite ends of the connecting pipe 37 are respectively connected to the mixing chamber 111 and the liquid storage chamber 121, and the connecting pipe 37 is disposed on the same side as the air pump assembly 6 and the control valve assembly 5. The camera system is configured such that when the air pressure in the gas storage chamber 114 is not less than the threshold value of the control valve assembly 5, the control valve gas outlet 52 of the control valve assembly 5 conveys gas to the gas inlet through hole 113 of the mixing chamber 111, and then the liquid in the liquid storage tank 12 enters the mixing chamber 111 through the connecting pipe 37 under the action of atmospheric pressure.

[0157] See Figure 23 and Figure 24 , in some embodiments, the outlet 1110 and the connecting pipe 37 are located on both sides of the partition plate 15.

[0158] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of the present application is not limited to the precise structures described in the above embodiments and shown in the drawings; any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A camera system, characterized by The camera system comprises a camera, a mixing cavity structure, a liquid storage tank, a gas injection member, and a connecting pipe. The mixing cavity structure comprises a mixing cavity provided with an outlet, and a liquid inlet hole and a gas inlet hole in communication with the mixing cavity. The liquid storage tank is provided with a liquid storage cavity in communication with the mixing cavity. The liquid storage tank sprays liquid into the mixing cavity through the liquid inlet hole. The gas injection member sprays gas into the mixing cavity through the gas inlet hole. The connecting pipe has opposite ends in communication with the mixing cavity and the liquid storage cavity.

2. The camera system of claim 1, wherein, When the gas injection member sprays gas into the mixing cavity, the air pressure at the liquid inlet hole decreases, and the liquid in the liquid storage tank enters the mixing cavity through the connecting pipe under the action of atmospheric pressure.

3. The camera system of claim 2, wherein, The camera system comprises a housing, a partition plate, and a first side wall extending from the partition plate.

4. The camera system of claim 3, wherein, The partition plate and the first side wall enclose the liquid storage cavity.

5. The camera system of claim 4, wherein, The mixing cavity is arranged on the partition plate.

6. The camera system of claim 5, wherein, The connecting pipe and the liquid storage cavity are located on opposite sides of the partition plate.

7. The camera system according to any one of claims 1 to 6, characterized in that The housing comprises a second side wall extending from the partition plate.

8. A camera system, characterized by The partition plate and the second side wall enclose a receiving cavity. The connecting pipe is located in the receiving cavity. The partition plate and the first side wall enclose a gas storage cavity. The gas storage cavity and the liquid storage cavity have the same opening direction. The camera system comprises a control valve assembly located in the receiving cavity. The control valve inlet of the control valve assembly is in communication with the gas storage cavity.

9. A camera system, characterized by The control valve outlet of the control valve assembly is in communication with the mixing cavity. The camera system comprises a gas pump assembly located in the receiving cavity. The gas pump assembly is in communication with the gas storage cavity. The gas pump assembly blows gas into the gas storage cavity. The control valve assembly and the gas pump assembly are located on the same side. The gas pump assembly and the gas storage cavity are located on opposite sides. The liquid inlet hole and the gas inlet hole are located on the same side of the mixing cavity. The liquid inlet hole and the gas inlet hole are located below the mixing cavity. The camera system comprises a housing, a partition plate, and a first side wall extending from the partition plate. The partition plate and the first side wall enclose the liquid storage cavity. The mixing cavity is arranged on the partition plate. The connecting pipe and the liquid storage cavity are located on opposite sides of the partition plate. The camera system comprises a control valve assembly located in the receiving cavity. The control valve inlet of the control valve assembly is in communication with the gas storage cavity. The control valve outlet of the control valve assembly is in communication with the mixing cavity. The camera system is configured to: when the air pressure in the gas storage cavity is not less than a threshold value of the control valve assembly, the control valve outlet delivers gas to the mixing cavity, and then the liquid in the liquid storage tank enters the mixing cavity through the connecting pipe under the action of atmospheric pressure. The camera system comprises a housing, a partition plate, and a first side wall extending from the partition plate. The partition plate and the first side wall enclose the liquid storage cavity. The mixing cavity is arranged on the partition plate. The connecting pipe and the liquid storage cavity are located on opposite sides of the partition plate. The camera system comprises a control valve assembly located in the receiving cavity. The control valve inlet of the control valve assembly is in communication with the gas storage cavity. The control valve outlet of the control valve assembly is in communication with the mixing cavity. The liquid storage tank is provided with a liquid storage cavity communicated with the mixing cavity, and the liquid storage tank sprays liquid into the mixing cavity through the liquid inlet through hole; The connecting pipe is provided on the same side of the air pump assembly and the control valve assembly. The camera system is configured to: when the air pressure of the gas storage cavity is not less than the threshold value of the control valve assembly, the control valve outlet of the control valve assembly delivers gas to the air inlet through hole of the mixing cavity, and then the liquid in the liquid storage tank enters the mixing cavity through the connecting pipe under the action of atmospheric pressure.

10. The camera system of claim 9, wherein, The outlet and the connecting pipe are located on both sides of the partition plate.

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