Fresh air device

Abstract

The utility model relates to a fresh air device. Comprising a shell, an access door, a machine body assembly, an airflow generation assembly, a first filtering assembly and a disinfection assembly. The shell is provided with four openings; an access opening is formed in the side wall of the shell, and the access door cover is arranged at the access opening. The machine body assembly comprises two assembling parts which are detachably connected, the two assembling parts are connected to form a first air duct and a second air duct, two openings are communicated through the first air duct, and the other two openings are communicated through the second air duct. The airflow generation assembly is used for forming airflow in the first air channel and the second air channel. The first filtering assembly is used for filtering impurities in gas in the first air channel. And the sterilizing and disinfecting assembly is used for sterilizing and disinfecting gas in the first air duct. As the two assembly parts are both of an integrated structure, the internal structure can be well kept during maintenance, disassembly and assembly, and the maintenance process is simplified. And the structure in the shell can be directly overhauled through the access hole, so that the maintenance process is simplified.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ventilation devices, in particular to a fresh air device. BACKGROUND

[0002] In a relatively closed space such as a room, the air circulation effect is usually poor. The air in the closed space is difficult to circulate for a long time, which leads to a decrease in the control quality of the closed space. Since the air quality has a relatively direct impact on human health, related technologies of ventilation devices have emerged to improve air circulation. Among them, the fresh air device can make the air inside and outside the room circulate and exchange to improve the air quality of the closed space such as the room.

[0003] In related technologies, the fresh air device forms an air duct inside it and forms an airflow in a specified direction in the air duct, so that the air on both sides of the fresh air device circulates and exchanges through the inside of the fresh air device. The fresh air device simultaneously purifies the air in the air duct, so that the air flowing through the fresh air device has high air quality. The treated air enters the room to improve the air quality in the room.

[0004] However, the fresh air device in related technologies has poor air purification effect and cannot remove solid impurities and microorganisms such as bacteria in the air. In addition, the air duct and other internal structures of the fresh air device are usually designed in an integrated manner. When repairing, if a component fails, the structure inside the fresh air device needs to be disassembled for repair and replacement, which is time-consuming and complicated. Similarly, the shell of the fresh air device is usually designed in an integrated manner, which is not easy to disassemble when repairing, resulting in complex and tedious maintenance operation. CONTENT OF THE INVENTION

[0005] Therefore, it is necessary to provide a fresh air device to solve the problems of poor air purification effect and complex and tedious maintenance operation.

[0006] The present application provides a fresh air device, which comprises:

[0007] A shell is provided with a first air inlet, a second air inlet, a first air outlet and a second air outlet. A side wall of the shell is provided with an access hole;

[0008] An access door is provided at the access hole;

[0009] A fuselage assembly is provided inside the shell. The fuselage assembly comprises a first assembly and a second assembly, and the first assembly and the second assembly are detachably connected,

[0010] The fuselage assembly is provided with a first air duct and a second air duct, the first air duct and / or the second air duct is enclosed by the first assembly and the second assembly, or is arranged on one of the first assembly and the second assembly, the first air inlet and the first air outlet are communicated through the first air duct, and the second air inlet and the second air outlet are communicated through the second air duct.

[0011] An air flow generating assembly is arranged between the first assembly and the second assembly, and is used for forming air flow in a specified direction in the first air duct and the second air duct respectively.

[0012] A first filter assembly is communicated with the first air duct, and is used for filtering impurities in the gas in the first air duct.

[0013] A sterilization and disinfection assembly is arranged between the first assembly and the second assembly, and is used for sterilizing and disinfecting the gas in the first air duct.

[0014] In some embodiments, the air flow generating assembly comprises a first air blower and a second air blower, the first air blower is arranged in the first air duct, and the second air blower is arranged in the second air duct.

[0015] In some embodiments, a second filter assembly is further included, the second filter assembly is communicated with the second air duct, and is used for filtering impurities in the gas in the second air duct.

[0016] In some embodiments, the sterilization and disinfection assembly comprises a plasma sterilization module, and the plasma sterilization module is arranged in the first air duct.

[0017] In some embodiments, the fresh air device further comprises a total heat exchanger, the total heat exchanger is arranged between the first assembly and the second assembly, and is mounted on the first assembly or the second assembly; the first air duct and the second air duct are both communicated with the total heat exchanger, and the total heat exchanger is used for adjusting the temperature of the gas in the first air duct and the second air duct.

[0018] In some embodiments, the fresh air device further comprises a first temperature sensor, a second temperature sensor and a third temperature sensor, the first temperature sensor and the second temperature sensor are both arranged in the first air duct, the first temperature sensor is located between the total heat exchanger and the first air inlet, and the second temperature sensor is located between the total heat exchanger and the first air outlet.

[0019] The third temperature sensor is arranged in the second air duct, and is located between the total heat exchanger and the second air outlet.

[0020] In some embodiments, the fresh air device further comprises a heating assembly arranged in the first air duct to heat the gas in the first air duct.

[0021] In some embodiments, the material of the first assembly and the material of the second assembly are both polypropylene plastic foaming materials.

[0022] In some embodiments, the fresh air device further comprises a control assembly, the airflow generating assembly and the sterilization and killing assembly are electrically connected with the control assembly, and the control assembly is used to control the on-off of the airflow generating assembly and the sterilization and killing assembly.

[0023] In some embodiments, the fresh air device further comprises a lock catch, one side of the maintenance door is connected with the shell through the lock catch.

[0024] The fresh air device has the following advantages. The first assembly and the second assembly are connected to form the first air duct and the second air duct, the first air inlet and the first air outlet on the surface of the shell are communicated through the first air duct, the second air inlet and the second air outlet are communicated through the second air duct, the airflow generating assembly forms airflow in opposite directions in the first air duct and the second air duct, the gas is input into the enclosed space through the first air duct, and the gas in the enclosed space is discharged through the second air duct, so that the gas in and out of the enclosed space is circulated. The sterilization and killing assembly is used to sterilize and disinfect the gas in the first air duct, and the first filtering assembly is used to filter the solid impurities in the gas in the first air duct, so that the gas is relatively pure, and the processed gas is input into the enclosed space to improve the air quality in the enclosed space. Since the first assembly and the second assembly are detachably connected, the airflow generating assembly and the sterilization and killing assembly are arranged between the first assembly and the second assembly, when the first air duct, the second air duct, the airflow generating assembly or the sterilization and killing assembly fails, the first assembly or the second assembly can be removed, the failed structure is exposed, and the failed structure is easy to maintain or replace. When the first assembly or the second assembly is removed, the internal structure of the fresh air device can be well maintained, the maintenance process is effectively simplified, and the maintenance efficiency is improved. In addition, the maintenance door and the maintenance opening are arranged on the surface of the shell, the structure close to the maintenance door in the shell can be directly maintained through the maintenance opening, the shell does not need to be disassembled, the maintenance process can be simplified, and the maintenance efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a front view of an embodiment of the fresh air device.

[0026] Figure 2 It is a top view of an embodiment of the fresh air device.

[0027] Figure 3Disassembled structural schematic diagram of an embodiment of a fresh air device of the present application.

[0028] Figure 4 Disassembled structural schematic diagram of an embodiment of a fresh air device of the present application. Figure 3 Top view of the mounting structure of the second assembly and the components arranged inside the second assembly.

[0029] In the figure, 100, housing; 110, access door; 120, first air inlet; 130, second air inlet; 140, first air outlet; 150, second air outlet; 160, lock catch; 200, body assembly; 210, first assembly; 220, second assembly; 230, first air duct; 240, second air duct; 300, airflow generating assembly; 310, first fan; 320, second fan; 400, first filter assembly; 500, disinfecting assembly; 510, plasma sterilization module; 600, total heat exchanger; 700, heating assembly; 800, control assembly. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below in combination with the drawings. In the following description, a large number of specific details are set forth in order 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 departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0031] In the description of the present application, if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0032] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0033] In the present application, unless specifically defined otherwise, if there appears the terms "mount", "connect", "connection", "fix", and the like, these terms should be interpreted broadly. For example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate media, it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In the present application, unless specifically defined otherwise, if there appears the terms "mount", "connect", "connection", "fix", and the like, these terms should be interpreted broadly. For example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate media, it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a middle element.

[0036] Reference Figures 1 to 4The new air device provided by an embodiment of the present application comprises a shell 100, an inspection door 110, a fuselage assembly 200, an air flow generation assembly 300, a first filter assembly 400 and a sterilization and disinfection assembly 500. The shell 100 is provided with a first air inlet 120, a second air inlet 130, a first air outlet 140 and a second air outlet 150. A side wall of the shell 100 is provided with an inspection opening, and the inspection door 110 is arranged on the inspection opening. The fuselage assembly 200 is arranged in the shell 100. The fuselage assembly 200 comprises a first assembly 210 and a second assembly 220, and the first assembly 210 and the second assembly 220 are detachably connected. The fuselage assembly 200 is provided with a first air duct 230 and a second air duct 240. The first air duct 230 and / or the second air duct 240 are formed by the first assembly 210 and the second assembly 220, or are arranged on one of the first assembly 210 and the second assembly 220. The first air inlet 120 and the first air outlet 140 are communicated through the first air duct 230, and the second air inlet 130 and the second air outlet 150 are communicated through the second air duct 240. The air flow generation assembly 300 is arranged between the first assembly 210 and the second assembly 220, and is used for forming air flows in specified directions in the first air duct 230 and the second air duct 240, respectively. The first filter assembly 400 is communicated with the first air duct 230, and is used for filtering impurities in the gas in the first air duct 230. The sterilization and disinfection assembly 500 is arranged between the first assembly 210 and the second assembly 220, and is used for sterilizing and disinfecting the gas in the first air duct 230.

[0037] Referring to Figure 1 and Figure 2 , preferably, in some embodiments, the first air inlet 120 and the first air outlet 140 serve as entrances and exits for the new air, the second air inlet 130 and the second air outlet 150 serve as entrances and exits for the exhaust air, the first air inlet 120 and the second air outlet 150 are located on the same side of the shell 100, and the second air inlet 130 and the first air outlet 140 are located on the opposite side of the shell 100.

[0038] Referring to Figure 1 , Figure 2 , Figure 3 and Figure 4The first assembly 210 is located above and the second assembly 220 is located below, so that the first assembly 210 and the second assembly 220 can be detachably connected to form the fuselage assembly 200; the first air duct 230 and the second air duct 240 can be arranged on the first assembly 210 or the second assembly 220, or part of the first air duct 230 is arranged on the first assembly 210 and part of the first air duct 230 is arranged on the second assembly 220, as long as the first assembly 210 and the second assembly 220 can form a complete first air duct 230 inside the first assembly 210 and the second assembly 220 when connected. Similarly, the second air duct 240 can be arranged in the same way as the first air duct 230. Preferably, in some embodiments provided by the application, part of the first air duct 230 and part of the second air duct 240 are arranged on the second assembly 220, and the other part of the first air duct 230 and the second air duct 240 are arranged on the first assembly 210. When the first assembly 210 and the second assembly 220 are connected, the first air duct 230 and the second air duct 240 are formed by the connection part of the first assembly 210 and the second assembly 220. The edges of the first assembly 210 and the edges of the second assembly 220 are in contact with the inner wall of the shell 100, so as to ensure that the first assembly 210 and the second assembly 220 will not deviate during use.

[0039] The above structure can expose the components mounted on the first assembly 210 or the second assembly 220 by assembling or disassembling the first assembly 210 or the second assembly 220 during installation and disassembly, and the assembling and disassembling operation is relatively simple. The two ends of the first air duct 230 are respectively in communication with the first air inlet 120 and the first air outlet 140. The gas on the side of the shell 100 provided with the first air inlet 120 flows to the side of the shell 100 provided with the first air outlet 140 through the first air duct 230 by the airflow generating assembly 300. Similarly, the two ends of the second air duct 240 are respectively in communication with the second air inlet 130 and the second air outlet 150. The gas on the side of the shell 100 provided with the second air inlet 130 flows to the side of the shell 100 provided with the second air outlet 150 through the second air duct 240 by the airflow generating assembly 300, so as to realize the exchange and circulation of air on both sides of the shell 100.

[0040] The first filter assembly 400 is used for removing solid impurities in the airflow flowing through the first air duct 230; and the sterilization assembly 500 is used for killing bacteria and other microorganisms in the gas flowing through the first air duct 230. Through the treatment of the first filter assembly 400 and the sterilization assembly 500, the airflow entering the room can be relatively pure. The shell 100 is provided with an access opening in the side wall. The access door 110 is closed in the use state to ensure the normal operation of the device. When internal parts fail, the access door 110 can be opened, and the internal parts of the device can be repaired and replaced through the access opening without disassembling the device, thereby simplifying the maintenance process.

[0041] When the fresh air device is used, the first assembly 210 and the second assembly 220 are connected to form the fuselage assembly 200, which is installed in the shell 100. The shell 100 is provided with the first air inlet 120 on one side of the outdoor, and the shell 100 is provided with the first air outlet 140 on one side of the indoor. The airflow generating assembly 300 generates airflow from the air inlet to the air outlet in the first air duct 230 and the second air duct 240. The airflow in the first air duct 230 is processed by the first filter assembly 400 and the disinfection assembly 500, and then the relatively pure gas is introduced into the indoor to improve the indoor air quality. When the parts (such as the first filter assembly 400) near the access opening fail, the access door 110 can be opened to repair and replace the corresponding parts. When the parts installed in the first assembly 210 or the second assembly 220 fail, the shell 100 can be disassembled, the second assembly 220 or the first assembly 210 is disassembled, the structure or assembly between the first assembly 210 and the second assembly 220 is exposed, and the parts between the first assembly 210 and the second assembly 220 can be repaired and replaced.

[0042] Based on the above structure, the first filter assembly 400 and the disinfection assembly 500 process the airflow in the first air duct 230, and the relatively pure gas is introduced into the closed space to improve the air quality in the closed space. The access opening and the access door 110 are arranged on the shell 100, the failed parts in the shell 100 can be repaired and replaced through the access opening, the repair efficiency is improved, and the repair operation is more convenient. The first assembly 210 and the second assembly 220 can be detachably connected, the airflow generating assembly 300 and the disinfection assembly 500 are arranged between the first assembly 210 and the second assembly 220, when the airflow generating assembly 300 and the disinfection assembly 500 fail, the first assembly 210 or the second assembly 220 is disassembled, the airflow generating assembly 300 and the disinfection assembly 500 are exposed, the parts installed in the fuselage assembly 200 can be repaired and replaced, the structure in the shell 100 can be ensured not to change greatly, and the repair operation is more convenient.

[0043] Further, the first assembly 210 and the second assembly 220 are provided with matching air duct grooves and mounting grooves on the surfaces. When the first assembly 210 and the second assembly 220 are connected, the air duct grooves on the first assembly 210 and the second assembly 220 correspond to form the first air duct 230 and the second air duct 240, and the mounting grooves correspond to form the mounting cavity. The mounting cavity is used to place the airflow generating assembly 300 and the disinfection assembly 500 and other assembly structures.

[0044] In some embodiments, the first assembly 210 and the second assembly 220 are integrated structures, and when the structure between the first assembly 210 and the second assembly 220 needs to be maintained, the first assembly 210 or the second assembly 220 can be removed as a whole, which is simple to operate. The first filter assembly 400 can be selected as a filter screen, and the first filter assembly 400 is arranged at the first air inlet 120, so that the gas entering the first air duct 230 through the first air inlet 120 needs to flow through the filter screen, thereby filtering the solid impurities in the gas and improving the air quality, and meanwhile, the solid impurities with large volume can be prevented from entering the first air duct 230 to cause blockage.

[0045] Further, referring to Figure 3 , the shell 100 includes a shell body 170 and a cover 180, the body assembly 200 is arranged in the shell body 170, the maintenance opening is arranged on the shell body 170, and the shell body 170 is provided with a mounting opening on the surface, and when the body assembly 200 is mounted, the body assembly 200 is placed in the shell body 170 through the mounting opening. The cover 180 is detachably arranged at the mounting opening, and when the cover 180 is removed, the first assembly 210 or the second assembly 220 is exposed to the mounting opening, which facilitates the mounting and dismounting of the first assembly 210 and the second assembly 220.

[0046] In some embodiments, the air flow generating assembly 300 includes a first fan 310 and a second fan 320, the first fan 310 is arranged in the first air duct 230, and the second fan 320 is arranged in the second air duct 240.

[0047] Referring to Figures 1 to 4 , it should be noted that the first fan 310 is arranged at a position close to the first air outlet 140 to improve the air suction effect and ensure that the gas in the first air duct 230 can enter the room; similarly, the second fan 320 is arranged at a position close to the second air outlet 150 to improve the air suction effect and ensure that the gas in the second air duct 240 can be discharged to the outside. The first fan 310 forms an air flow in the first air duct 230 from the first air inlet 120 to the first air outlet 140, and the second fan 320 forms an air flow in the second air duct 240 from the second air inlet 130 to the second air outlet 150.

[0048] In some embodiments, the fresh air device further includes a second filter assembly (not shown in the figure), which is in communication with the second air duct 240 and is used for filtering impurities in the gas in the second air duct 240.

[0049] It should be noted that the second filter assembly can be selected as a filter screen, and the second filter assembly can be arranged in the interior of the second air duct 240, so that the gas entering the second air duct 240 needs to flow through the filter screen, thereby filtering the solid impurities in the gas and preventing the solid impurities with large volume from entering the second air duct 240 to cause blockage.

[0050] In some embodiments, the disinfection assembly 500 comprises a plasma sterilization module 510, which is arranged in the first air duct 230.

[0051] Referring to Figure 4 It should be noted that the plasma sterilization module 510 is arranged close to the first air outlet 140, so as to avoid the active bacteria and other microorganisms in the outdoor and the interior of the fresh air device from entering the indoor. The plasma sterilization module 510 makes the bacteria and other microorganisms lose activity through plasma, so as to improve the purity of the air entering the indoor through the first air duct 230.

[0052] In some embodiments, the fresh air device further comprises a total heat exchanger 600, which is arranged between the first assembly 210 and the second assembly 220 and is mounted on the first assembly 210 or the second assembly 220; the first air duct 230 and the second air duct 240 are in communication with the total heat exchanger 600, and the total heat exchanger 600 is used to adjust the temperature of the gas in the first air duct 230 and the second air duct 240.

[0053] Referring to Figure 3 and Figure 4 It should be noted that the total heat exchanger 600 is mounted at the middle position of the second assembly 220, and the first air duct 230 and the second air duct 240 pass through the total heat exchanger 600 respectively, and the first air duct 230 and the second air duct 240 are arranged in a cross manner inside the total heat exchanger 600, so that the first air duct 230 and the second air duct 240 are close to each other, the gas temperature in the first air duct 230 and the second air duct 240 is exchanged through the heat transfer plate in the total heat exchanger 600, so that the temperature of the gas in the first air duct 230 is close to the temperature of the gas on the side of the second air inlet 130, and the indoor air temperature is stable after the gas in the first air duct 230 enters the indoor.

[0054] In addition, micropores can be arranged in the total heat exchanger 600, so that the humidity of the gas in the first air duct 230 and the gas in the second air duct 240 is exchanged, so that the humidity of the gas in the first air duct 230 is close to the indoor, so as to keep the indoor humidity stable.

[0055] In some embodiments, the fresh air device further comprises a first temperature sensor (not shown in the figure), a second temperature sensor (not shown in the figure) and a third temperature sensor (not shown in the figure), the first temperature sensor and the second temperature sensor are arranged in the first air duct 230, the first temperature sensor is located between the total heat exchanger 600 and the first air inlet 120, and the second temperature sensor is located between the total heat exchanger 600 and the first air outlet 140. The third temperature sensor is arranged in the second air duct 240 and located between the total heat exchanger 600 and the second air outlet 150. In some embodiments, the fresh air device further comprises a first temperature sensor (not shown in the figure), a second temperature sensor (not shown in the figure) and a third temperature sensor (not shown in the figure), the first temperature sensor and the second temperature sensor are arranged in the first air duct 230, the first temperature sensor is located between the total heat exchanger 600 and the first air inlet 120, and the second temperature sensor is located between the total heat exchanger 600 and the first air outlet 140. The third temperature sensor is arranged in the second air duct 240 and located between the total heat exchanger 600 and the second air outlet 150.

[0056] It should be noted that the first temperature sensor is arranged between the total heat exchanger 600 and the first air inlet 120, and can detect the temperature of the gas in the first air duct 230 before entering the total heat exchanger 600; the second temperature sensor is arranged between the total heat exchanger 600 and the first air outlet 140, and can detect the temperature of the gas in the first air duct 230 after being treated by the total heat exchanger 600, so that the user can determine whether the total heat exchanger 600 is working normally, and whether the temperature of the gas entering the room meets the use requirements.

[0057] The third temperature sensor is arranged between the total heat exchanger 600 and the second air outlet 150, and can detect the temperature of the discharged gas, so as to determine whether the temperature of the gas discharged to the outdoor meets the discharge requirements.

[0058] In some embodiments, the fresh air device further comprises a heating assembly 700 arranged in the first air duct 230 to heat the gas in the first air duct 230.

[0059] Referring to Figure 3 and Figure 4 It should be noted that the heating assembly 700 is arranged in the first air duct 230, and can heat the gas in the first air duct 230 in advance before use, so as to increase the temperature of the side wall of the first air duct 230; when the air flow is formed in the first air duct 230, the temperature difference between the side wall of the first air duct 230 and the gas entering the first air duct 230 can be avoided to be too large to cause the air flow to condense, and water accumulation in the first air duct 230 can be prevented.

[0060] In some embodiments, the material of the first assembly 210 and the material of the second assembly 220 are both polypropylene plastic foaming materials.

[0061] It should be noted that the polypropylene plastic foaming material has good stability, which can ensure the stable operation of the fresh air device; and the polypropylene plastic foaming material has a relatively light weight, which can effectively reduce the overall quality of the fresh air device, and facilitate transportation and use. In addition, the polypropylene plastic foaming material also has good sound insulation effect, which can effectively reduce the noise of the components running in the body assembly 200.

[0062] In some embodiments, the fresh air device further comprises a control assembly 800, and the air flow generating assembly 300 and the sterilization and killing assembly 500 are electrically connected with the control assembly 800, and the control assembly 800 is used to control the on-off of the air flow generating assembly 300 and the sterilization and killing assembly 500.

[0063] Referring to Figures 1 to 4It should be noted that the control assembly 800 comprises a control panel and a control circuit, the control panel is installed on the first assembly 210 or the second assembly 220 and exposed on the surface of the shell 100, facilitating the operation of the control panel. The first assembly 210 or the second assembly 220 is provided with a wire slot, and the control circuit is arranged in the wire slot. The control panel is connected with the airflow generating assembly 300 and the sterilization assembly 500 through the control circuit, so that the user can control the operation of the airflow generating assembly 300 and the sterilization assembly 500.

[0064] In some embodiments, the fresh air device further comprises a lock buckle 160, one side of the maintenance door 110 is connected with the shell 100 through the lock buckle 160.

[0065] Referring to Figure 1 and Figure 2 It should be noted that a plurality of lock buckles 160 are hinged to the side surface of the shell 100, and the maintenance door 110 is provided with a plurality of clamping grooves corresponding to the lock buckles 160. When closing the maintenance door 110, rotating the lock buckles 160 makes the lock buckles 160 abut against the clamping grooves, so as to fix the maintenance door 110. When opening the maintenance door 110, only need to rotate the lock buckles 160, so as to release the locking of the maintenance door 110 by the lock buckles 160, and open the maintenance door 110, and the inside of the shell 100 is maintained through the maintenance opening. By setting the lock buckles 160 matched with the clamping grooves on the maintenance door 110, the maintenance door 110 can be quickly opened or closed, further saving the time required for maintenance, and the operation is simple.

[0066] The technical features of the above-mentioned embodiments can be combined in any way. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, but as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0067] The above-mentioned embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as the limitation of the patent application scope. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, some modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A fresh air device, characterized in that The application relates to an air conditioner, which comprises the following parts: a shell provided with a first air inlet, a second air inlet, a first air outlet and a second air outlet; a side wall of the shell is provided with an inspection opening; an inspection door covering the inspection opening; a machine body assembly arranged in the shell; the machine body assembly comprises a first assembly and a second assembly, the first assembly and the second assembly are detachably connected, the machine body assembly is provided with a first air duct and a second air duct, the first air duct and / or the second air duct are formed by the first assembly and the second assembly or arranged in one of the first assembly and the second assembly, the first air inlet and the first air outlet are communicated through the first air duct, and the second air inlet and the second air outlet are communicated through the second air duct; an air flow generating assembly arranged between the first assembly and the second assembly, which is used for forming air flow in the first air duct and the second air duct in a specified direction; a first filter assembly communicated with the first air duct and used for filtering impurities in the air in the first air duct; a sterilization and disinfection assembly arranged between the first assembly and the second assembly, which is used for sterilizing and disinfecting the air in the first air duct.

2. The fresh air device according to claim 1, characterized in that, The air flow generating assembly comprises a first fan and a second fan, the first fan is arranged in the first air duct, and the second fan is arranged in the second air duct.

3. The fresh air device according to claim 1, characterized in that, The application further comprises a second filter assembly communicated with the second air duct and used for filtering impurities in the air in the second air duct.

4. The fresh air device according to claim 1, characterized in that, The sterilization and disinfection assembly comprises a plasma sterilization module arranged in the first air duct.

5. The fresh air device according to claim 1, characterized in that The application further comprises a total heat exchanger arranged between the first assembly and the second assembly and mounted on the first assembly or the second assembly; the first air duct and the second air duct are communicated with the total heat exchanger, and the total heat exchanger is used for adjusting the temperature of the air in the first air duct and the second air duct.

6. The fresh air device according to claim 5, characterized in that The application further comprises a first temperature sensor, a second temperature sensor and a third temperature sensor; the first temperature sensor and the second temperature sensor are arranged in the first air duct, the first temperature sensor is located between the total heat exchanger and the first air inlet, and the second temperature sensor is located between the total heat exchanger and the first air outlet; The third temperature sensor is arranged in the second air duct and located between the total heat exchanger and the second air outlet.

7. The fresh air device according to claim 1, characterized in that, The application further comprises a heating assembly arranged in the first air duct to heat the air in the first air duct.

8. The fresh air device according to claim 1, characterized in that The material of the first assembly and the material of the second assembly are both polypropylene plastic foaming materials.

9. The fresh air device according to claim 1, characterized in that, The application further comprises a control assembly, the air flow generating assembly and the sterilization and disinfection assembly are electrically connected with the control assembly, and the control assembly is used for controlling the on-off of the air flow generating assembly and the sterilization and disinfection assembly.

10. The fresh air device of claim 1, wherein, The application further comprises a lock buckle, one side of the inspection door is connected with the shell through the lock buckle.

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