Air purifier

Abstract

The present invention provides an air purifier, which includes a housing and a top cover. A first air duct is arranged inside the housing, and a first installation opening is arranged on the housing. The first installation opening is communicated with the first air duct, and a cover plate is detachably arranged on the first installation opening. The top cover covers the housing and is arranged on one side of the first installation opening. With the above structure, the purification functional components in the air duct can be arranged in the air duct through the installation opening or the insertion opening. The purification functional components are installed in an open installation manner. When replacing, there is no need to disassemble the components of the air duct, and the purification functional components can be directly replaced through the installation opening. The process operation is simple, effectively shortening the working time. The housing is covered with a top cover. When the top cover is opened to maintain the components on the upper surface of the housing, since the cover plate is arranged on the installation opening, it can avoid affecting the components in the air duct through the installation opening. The arrangement of the installation opening can not only realize the convenient replacement of the internal components of the air duct, but also realize the protection of the internal components of the air duct.

Description

Technical Field

[0001] The present invention relates to the field of air purification, and particularly to an air purifier. Background Art

[0002] Air purification is a technical means for providing disinfection, dust removal, haze removal, removal of harmful decoration residues, and odor removal for various indoor environmental problems, improving the living and working environmental conditions. The working principle of an air purifier is as follows: an air duct is formed inside the air purifier, and a fan and a purification component are arranged in the air duct. The purification component can be a purification functional component such as a filter HAPE net, an ultraviolet lamp, etc. with adsorption or sterilization functions. Under the action of the fan, indoor air is sucked into the air duct, and after being purified by the purification component in the air duct, it is discharged, so that the indoor air realizes a purification cycle. Since most of the purification components are consumables, they need to be replaced after being used for a period of time to avoid seriously affecting the subsequent purification effect; however, the purification components in the existing air purifiers are installed in a closed manner in the air duct. If the purification components are to be replaced, the components forming the air duct need to be disassembled, and the air duct needs to be opened before the purification components in the air duct can be replaced. This process has cumbersome steps and takes too long. Summary of the Invention

[0003] The main object of the present invention is to provide an air purifier that enables quick replacement of purification components.

[0004] To achieve the above main object, the air purifier provided by the present invention includes a housing and a top cover. A first air duct is arranged inside the housing, a first installation opening is arranged on the housing, the first installation opening is communicated with the first air duct, a cover plate is detachably arranged on the first installation opening, the cover plate covers the first installation opening, and the top cover covers the housing and is arranged on one side of the first installation opening.

[0005] As can be seen from the above solution, to achieve the air purification function, purification functional components need to be arranged in the air duct, and an installation opening is arranged on the housing. The purification functional components can be arranged in the air duct through the first installation opening, and an open installation method is selected to install the purification functional components. When replacing the purification functional components, it is not necessary to disassemble the components forming the air duct, and the purification functional components can be directly replaced through the installation opening. The process operation is simple, effectively shortening the working time; a top cover is covered on the housing. When the top cover is opened to maintain the components on the upper surface of the housing, since a cover plate is arranged on the installation opening, the components in the air duct can be prevented from being affected through the installation opening during the maintenance process. The arrangement of the installation opening can not only realize the convenient replacement of the internal components of the air duct, but also realize the protection of the internal components of the air duct.

[0006] A further solution is that at least one insertion opening is arranged on the housing, and at least one insertion opening is communicated with the first air duct.

[0007] It can be seen that the internal components of the air duct can enter the air duct in a plug-and-play manner through the plug-and-play opening. The plug-and-play method has relatively low technical requirements for component installation and can also achieve rapid replacement and disassembly of components.

[0008] A further solution is that the first installation opening and at least one plug-and-play opening are located on the same side of the housing, and the top cover covers the first installation opening and at least one plug-and-play opening.

[0009] It can be seen that since the first installation opening and the plug-and-play opening are located on the same side of the housing, the cover plate covers and blocks the first installation opening, while the top cover blocks the plug-and-play opening and the components inside the plug-and-play opening. When the top cover is opened, the components in the plug-and-play opening are exposed, while the components at the installation opening are still blocked by the back cover. When replacing the components inside the plug-and-play opening, it will not affect the components at the installation opening.

[0010] A further solution is that a purification function component is arranged in the first air duct. The purification function component includes an electrified purification function component and a non-electrified purification function component. The electrified purification function component is installed in the first air duct through the first installation opening, and the non-electrified purification function component is installed in the first air duct through the plug-and-play opening.

[0011] It can be seen that by setting purification function components with different purification principles in the air duct through the first installation opening and the plug-and-play opening, the purification function components can be classified to ensure electrical safety. Moreover, the electrified purification function component is arranged in the air duct through the installation opening covered by the cover plate. The electrified purification function component can only be exposed after opening the cover plate after opening the top cover, so as to provide multi-layer protection for the electrified purification function component and further ensure electrical safety.

[0012] A further solution is that the electrified purification function component is a high-energy plasma tube, and an ozone removal net is arranged in the first air duct; and / or the non-electrified purification function component is an initial filter or a HAPE filter

[0013] It can be seen that the high-energy plasma tube is prone to generating ozone during operation, and the ozone removal net absorbs ozone to ensure the quality of purified air.

[0014] A further solution is that the ozone removal net is fixed in the first air duct through a limit groove or interference fit.

[0015] A further solution is that at least two limit ribs are arranged on the inner side wall of the first air duct, and the limit groove is formed between at least two limit ribs; and / or the inner side wall of the first air duct bulges towards the outside of the first air duct to form a limit groove.

[0016] It can be seen that there are various ways to realize the limit groove. Installing the ozone removal net in the air duct through the limit groove can fix the ozone removal net and guide the installation of the ozone removal net at the same time.

[0017] In a further solution, the top cover is closed on the housing through a snap structure, and the cover plate is locked on the housing through a plurality of screws; and / or at least one grasping recess is provided on the side wall of the cover plate facing away from the first air duct.

[0018] It can be seen that the difficulty of unlocking the snap structure is relatively smaller than that of the screw fixing structure, and the unlocking speed is faster. The user can quickly unlock the top cover to replace the components on the housing. However, it is difficult to unlock the cover plate to operate the components at the installation opening, which can reduce the touch of the powered purification function components in the air duct by people with lower technical capabilities and ensure safety; The screw is a common detachable connection component. By installing the cover plate on the housing with screws, the cover plate can be closely attached to the housing to ensure the sealing of the installation chamber, while the component cost is low and the disassembly method is simple; When removing the cover plate from the housing, the setting of the recess makes it easier to pick up the cover plate.

[0019] In a further solution, the air purifier includes a first cover body, the first cover body covers the housing, and a second air duct is formed on the side wall of the first cover body facing the housing.

[0020] It can be seen that the second air duct is formed on one side of the first cover body facing the housing, so that the air purifier increases the air duct, and this air duct can realize the dry hand function of the purifier.

[0021] In a further solution, a second installation opening is provided on the first cover body, the first installation opening communicates with the second installation opening, and the cover plate covers the first installation opening and the second installation opening.

[0022] It can be seen that since the first cover body covers the housing and a second installation opening is provided on the housing, and since the first installation opening communicates with the second installation opening, the components in the housing can be installed or disassembled by passing through the second installation opening and the first installation opening in sequence.

[0023] In a further solution, a partition block is convexly provided on the side wall of the cover plate facing the housing, a hollow portion is provided on the partition block, the hollow portion penetrates the partition block along the air flow direction of the second air duct, the second air duct penetrates the hollow portion, and the partition block covers the first installation opening.

[0024] It can be seen that the setting of the partition block makes the second air duct formed on the first cover body, and at the same time, the partition block covers the first installation opening, realizing the independence of the first air duct and the second air duct respectively.

[0025] A further solution is that the housing is provided with a first installation chamber, a second installation chamber, a first air inlet, a second air inlet and a first air outlet. A first air duct is formed between the first air inlet and the first air outlet, and the first air duct penetrates through the first installation chamber. The first installation chamber is used for installing a purification functional component and a first fan, and the first installation opening communicates with the first installation chamber; a second air outlet is provided on the first cover, and a second air duct is formed between the second air inlet and the second air outlet. Along the air flow direction of the second air duct, the second air duct sequentially penetrates through the second installation chamber and the hollow part, and the second installation is used for installing a second fan.

[0026] It can be seen that the installation chambers for installing the first fan and the second fan are both arranged on the housing, and the main components in the second air duct are arranged on the housing, so that the thickness of the first cover is smaller, and the overall volume of the purifier can be better controlled.

[0027] A further solution is that a first sealing member is provided upward on the outer periphery of the first installation opening, and the first sealing member abuts between the cover plate and the housing; and / or a second sealing member is provided upward on the outer periphery of the second installation opening, and the second sealing member abuts between the cover plate and the first cover.

[0028] It can be seen that the installation of the first sealing member and the second sealing member ensures the sealing performance of the first air duct and the second air duct. Description of the Drawings

[0029] Figure 1 is a perspective view of an embodiment of the air purifier of the present invention.

[0030] Figure 2 is an exploded view of an embodiment of the air purifier of the present invention.

[0031] Figure 3 is a structural diagram of the housing and the bottom cover of the air purifier of the present invention after separation.

[0032] Figure 4 is a structural diagram of the housing and the upper cover of the air purifier of the present invention after separation.

[0033] Figure 5 is a structural diagram of the top cover and the cover plate of the air purifier of the present invention after being opened.

[0034] Figure 6 is a cross-sectional view of an embodiment of the air purifier of the present invention.

[0035] Figure 7 is a structural diagram of the air purifier of the present invention after removing the bottom cover.

[0036] Figure 8 is another cross-sectional view of an embodiment of the air purifier of the present invention.

[0037] Figure 9 It is a structural diagram of installing a low-energy plasma generator in an embodiment of the air purifier of the present invention.

[0038] Figure 10 It is a structural diagram of the air purifier embodiment of the present invention after removing the top cover.

[0039] Figure 11 It is an exploded view of the mounting bracket and the aromatherapy in an embodiment of the air purifier of the present invention.

[0040] Figure 12 It is Figure 7 An enlarged view of part A.

[0041] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. Specific embodiments

[0042] Referring to Figure 1 and Figure 2 , the air purifier of the present invention includes a bottom cover 1, a housing 2, an upper cover 3 and a top cover 4. Among them, the bottom cover 1 is the second cover body 1, the upper cover 3 is the first cover body 3, and the top cover 4 is the third cover body 4. The housing 2 includes an outer shell 21 and an inner housing 22, and the inner housing 22 is located inside the outer shell 21. The bottom cover 1, the housing 2, the upper cover 3 and the top cover 4 are stacked in sequence. The projection shapes of the bottom cover 1, the outer shell 21, the inner housing 22, the upper cover 3 and the top cover 4 along the stacking direction are the same and the areas are adapted to each other, that is, the areas of the bottom cover 1, the housing 2, the upper cover 3 and the top cover 4 are substantially the same. When stacking, the bottom cover 1, the housing 2, the upper cover 3 and the top cover 4 are clearly layered. This shape setting and stacking method realize the rapid positioning and assembly of the bottom cover 1, the housing 2, the upper cover 3 and the top cover 4, and accelerate the assembly speed.

[0043] Referring to Figure 3 , at least one air inlet 6 and at least one air outlet 7 are provided on the housing 2. At least one installation chamber 5 is provided inside the inner housing 22. The installation chamber 5 is used to arrange a fan and a purification function member 01. The purification function member 01 is a component that realizes air purification through different purification principles. Different purification principles may include methods such as filtration, sterilization and interception; a air duct is formed between the air inlet 6 and the air outlet 7, and the air duct penetrates through the installation chamber 5, so that at least one air duct is formed inside the inner housing 22. Under the action of the fan in the installation chamber 5, the air outside the air purifier enters the installation chamber 5 from the air inlet 6, and the purification function member 3 in the installation chamber 5 disinfects and sterilizes the air entering the air purifier to realize air purification, and then discharges the purified air from the air outlet 7.

[0044] In this embodiment, a first installation chamber 51 and a second installation chamber 52 are provided inside the inner housing 22, and different components can be placed in the first installation chamber 51 and the second installation chamber 52. Referring to Figure 6, in this embodiment, two air ducts, i.e., a first air duct 03 and a second air duct 04, are formed inside the inner housing 22. The first air duct 03 penetrates through the first installation chamber 51, and the second air duct 04 penetrates through the second installation chamber 52. The first installation chamber 51 and the second installation chamber 52 are respectively communicated with different air inlets 6 and air outlets 7. Among them, the second air duct 04 can be formed on the side of the first cover 3 facing the housing 2, so that the second air duct 04 is located between the first air duct 03 and the first cover 3. In this embodiment, a first air duct 03 and a second air duct 04 are formed inside the inner housing 22. A first air inlet 65, a second air inlet 66, and a first air outlet 71 are formed on the inner housing 22. A second air outlet 72 is formed on the first cover 3. The first air duct 03 is formed between the first air inlet 65 and the first air outlet 71, and the second air duct 04 is formed between the second air inlet 66 and the second air outlet 72. The first air inlet 65 and the second air inlet 66 are arranged on the two opposite sides of the inner housing 22 in a one-to-one correspondence, and the first air inlet 65 and the second air inlet 66 are arranged opposite to each other. The first air outlet 71 and the second air outlet 72 are located on the same side of the air purifier. When the air purifier is installed on the wall, the first air outlet 71 and the second air outlet 72 are located at the bottom of the air purifier; based on the bottom cover 1, the second air outlet 72 is located above the first air outlet 71, and the first air outlet 71 and the second air outlet 72 are respectively located between the first air inlet 65 and the second air inlet 66. The first installation chamber 51 is respectively communicated with the first air inlet 65 and the first air outlet 71, and the second installation chamber 52 is respectively communicated with the second air inlet 66 and the second air outlet 72.

[0045] In this embodiment, the first installation chamber 51 is assembled and spliced by a plurality of first installation side plates 511 and two second installation side plates 512. The connection between the plurality of first installation side plates 511 is integrally formed, and the side wall of the bottom cover 1 facing the housing 2 is the bottom of the first installation chamber 51. The first air duct 03 is located between the two second installation side plates 512, and the two second installation side plates 512 are arranged opposite to each other. The first installation side plates 511 are fixed inside the inner housing 22, and the second installation side plates 512 are detachably installed inside the housing 2. The specific structure for realizing the detachable second installation side plate is as follows: a clamping groove 513 is provided on the side wall of the first installation side plate 511 facing the second installation side plate 512, and the second installation side plate 512 is clamped in the clamping groove 513, so that the second installation side plate 512 is detachably arranged inside the inner housing 22. To ensure the stability of the second installation side plate 512 during the operation of the air purifier, see Figure 8, screw holes 514 are provided on the second mounting side plate 512, and screws 31 are provided on the first cover 3. The screws 31 are cooperatively connected with the screw holes 514 to connect the second mounting side plate 512 and the first cover 3. The detachable property of the second mounting side plate 512 enables the change of the area of the first mounting chamber 51, so that the area of the first mounting chamber 51 can be adjusted, and different volumes and types of purification functional components 01 can be installed in the first mounting chamber 51. As another implementation manner for realizing the area change of the first mounting chamber 51: the side wall of the first mounting chamber 51 is surrounded by the first mounting side plate 511, and the first mounting side plate 511 is integrally fixed on the inner housing 22. The first mounting side plates 511 with different lengths surround the first mounting chambers 51 with different sizes. When replacing different purification functional components, the first mounting side plates 511 with different sizes are directly replaced in the inner housing 22, so as to obtain the first mounting chambers 51 with different areas.

[0046] Due to the detachable property of the second mounting side plate 512, the area of the first mounting chamber 51 can be changed. In this embodiment, a third mounting chamber 53 is further partitioned in the inner housing 22. The third mounting chamber 53 is adjacent to the first mounting chamber 51, and the second mounting side plate 512 is located between the third mounting chamber 53 and the first mounting chamber 51. When the second mounting side plate 512 is removed, the first mounting chamber 51 is communicated with the third mounting chamber 53, increasing the area of the first mounting chamber 51 and providing more space for replacing the purification functional component 01. Specifically, for example, a high-energy plasma tube 011 is originally arranged in the first mounting chamber 51, and an installation package of high-energy plasma is placed in the third mounting chamber 53. When the high-energy plasma tube 011 needs to be replaced with a low-energy plasma generator, refer to Figure 9 , remove one second mounting side plate 512 to communicate the first mounting chamber 51 with the third mounting chamber 53, and then install the low-energy plasma generator 017 and its installation package in the first mounting chamber 51 with an increased area.

[0047] At least one conductive mounting position 515 is provided on the side wall of the first mounting chamber 51. There are various ways to arrange the conductive mounting position 515 on the side wall of the first mounting chamber. For example, the conductive mounting position 515 is fixedly arranged on the first mounting side plate 511, or it can also be arranged on the detachable second mounting side plate 512. When the conductive mounting position 515 is arranged on the second mounting side plate 512, at least one of the two second mounting side plates 512 is provided with the conductive mounting position 515 to keep the high-energy plasma tube 011 or the ultraviolet lamp energized so that it can operate normally. In this embodiment, the conductive mounting position 515 is arranged on the detachable second mounting side plate 512. Since the conductive mounting position 512 is used to energize the purification functional component, an energized purification functional component 01 is installed in the first mounting chamber 51. The energized purification functional component 01 includes a high-energy plasma tube 011, a low-energy plasma generator 017 or an ultraviolet lamp. Both the high-energy plasma tube 011 and the ultraviolet lamp are tubular energized purification functional components, and the conductive mounting position 515 is applicable to the installation of both the high-energy plasma tube and the ultraviolet lamp, so that the high-energy plasma tube 011 and the ultraviolet lamp are alternately or simultaneously arranged on at least one of the conductive mounting positions 515. In this embodiment, two conductive mounting positions 515 are provided on the second mounting side plate 512, and the two conductive mounting positions 515 are arranged collinearly along the extension direction from the top to the bottom of the housing 2, reducing the space occupied by the energized purification functional component in the first mounting chamber 51. Both high-energy plasma tubes 011 can be simultaneously arranged on the two conductive mounting positions 515, or ultraviolet lamps can be simultaneously arranged, or a high-energy plasma tube 011 is arranged on one conductive mounting position and an ultraviolet lamp is installed on the other conductive mounting position.

[0048] See Figure 8, a conductive component 8 is provided on the conductive mounting position 515. The conductive component 8 includes a conductive moving member 81, a spring 82, and a limiting block 83. A limiting chamber 84 is provided on the second mounting side plate 512. The conductive moving member 81 and the spring 82 are respectively located in the limiting chamber 84, and the conductive moving member 81 is in clearance fit with the limiting chamber 84. The conductive moving member 81 penetrates through the spring 82 and the second mounting side plate 512. A step 811 is provided on the conductive moving member 81. The spring 82 abuts between the step 811 of the conductive moving member 81 and the second mounting side plate 512. One end of the conductive moving member 81 is connected to the limiting block 83, and the limiting block 83 is located outside the first air duct 03. A first limiting groove 812 is provided on the side of the conductive moving member 81 facing the first air duct 03. In this embodiment, two oppositely arranged detachable second mounting side plates 512 are provided in the first mounting chamber 51. Conductive mounting positions 515 are provided on both of the two second mounting side plates 512. Among them, a conductive component 8 is provided on the conductive mounting position 515 of at least one of the two second mounting side plates 512 to ensure that the high-energy plasma tube 011 or the ultraviolet lamp can be horizontally mounted in the first mounting chamber 51. In this embodiment, a conductive component 8 is provided on one of the second mounting side plates 512, and a movable conductive moving member 81 is provided on this second mounting side plate 512. There is no conductive component 8 on the conductive mounting position 515 of the other second mounting side plate 512. Instead, a second limiting groove 814 is provided through a conductive and immovable fixing block 813. Specifically: an immovable fixing block 813 is provided on the other second mounting side plate 512, and a second limiting groove 814 is provided on the side of the fixing block 813 facing the first limiting groove 812. When the high-energy plasma tube 011 or the ultraviolet lamp needs to be mounted in the first mounting chamber 51, the axial first end of the high-energy plasma tube 011 or the ultraviolet lamp is located in the first limiting groove 812. Drive the movement of the conductive moving member 81, compress the spring 82, and drive one end of the high-energy plasma tube 011 or the ultraviolet lamp to move, so that the remaining part of the high-energy plasma tube 011 or the ultraviolet lamp completely enters the first mounting chamber 51. Set the axial second end of the high-energy plasma tube 011 or the ultraviolet lamp in the second limiting groove 814, so as to horizontally mount the high-energy plasma tube 011 or the ultraviolet lamp in the first mounting chamber 51. During the installation process of the high-energy plasma tube 011 or the ultraviolet lamp, the cooperation between the movability of the first limiting groove 812 and the immovability of the second limiting groove 814 can more quickly make the high-energy plasma tube 011 or the ultraviolet lamp in a balanced and stable installation state.On the conductive installation position 515, the conductive component 8 adopts the cooperation structure of the conductive moving part 81 and the spring 82 to install the high-energy plasma tube 011 or the ultraviolet lamp. There is no need to install the high-energy plasma tube 011 or the ultraviolet lamp through installation screws, which can avoid cumbersome procedures, make the installation operation simpler and easier to install. Moreover, the setting of the spring 82 can make the conductive end of the high-energy plasma tube 011 be in closer contact with the conductive moving part 81, and the conductive end of the high-energy plasma tube 011 is more conductive.

[0049] If the purification functional component is the high-energy plasma tube 011, since the high-energy plasma tube 011 is prone to generate ozone, if the ozone content is too high, it is likely to affect the quality of air purification. An ozone removal net 012 is arranged in the first installation chamber 51. The ozone removal net 012 is arranged in the first installation chamber 51 through a limiting structure. Specifically: see Figure 7 , the limiting structure includes two limiting ribs 516. The two limiting ribs 516 are arranged on the inner side wall of the air duct. The two limiting ribs 516 are arranged oppositely, and the ozone removal net 012 is located between the two limiting ribs 516. Based on the inner side wall of the first installation chamber 51, the height of the two limiting ribs 516 should not be too high to avoid excessive blocking of the air flow in the air duct. In order to improve the stability of the ozone removal net 012 in the first installation chamber 51, a limiting groove 517 can be recessed on the other inner side wall of the first installation chamber 51, so that one side of the ozone removal net 012 is located between the two limiting ribs 516, and the other side is located in the limiting groove 517.

[0050] The first fan adopted in the first air duct 03 is an axial flow fan 013. In this embodiment, the axial flow fan 013 is arranged between the first air outlet 71 and the ozone removal net 012.

[0051] In this embodiment, along the air flow direction of the first air duct 03, the air in the first air duct 03 enters the first installation chamber 51 from the first air inlet 65, and successively passes through the powered purification component, the ozone removal net 012, the first fan 013, and the first air outlet 71. Along the air flow direction of the first air duct 03, the width of the first installation chamber 51 is arranged according to the rule of small-large-small, that is, in the first installation chamber 51, the width of the first air inlet 65 is smaller than the width of the position where the powered purification component and the ozone removal net 012 are located, the width of the position where the powered purification component and the ozone removal net 012 are located is larger than the width of the position where the first fan 013 is located, and the width of the position where the first fan 013 is located is substantially the same as the width of the first air outlet 71. This design structure enables the air to first pass through the position with a larger width in the first installation chamber 51 where the powered purification component and the ozone removal net 012 are provided, so that the air is gathered and sterilized by the purification component, and then under the action of the first fan 013, the purified air passes through the first fan 013 with a smaller width, ensuring the purification effect of the air flowing out from the first air outlet 71 of the first air duct 03.

[0052] See Figure 4 , on the top surface of the housing 2 facing the upper cover 3, a first installation opening 61 and a first ventilation opening 62 are provided. The first installation opening 61 is communicated with the first installation chamber 51. The first installation chamber 51 can be used to install the purification component 01. The purification component 01 passes through the first installation opening 61 and is arranged in the air duct, so that during the daily simple maintenance of the purification hand dryer, the components inside the first installation chamber 51 can be replaced through the first installation opening 61 on the side wall of the first installation chamber 51 facing the upper cover 13, without disassembling the bottom cover 11 and the housing 12, which speeds up the replacement speed. The first ventilation opening 62 is communicated with the second installation chamber 52; a series-wound fan 521 is arranged in the second installation chamber 52. In this embodiment, the shape of the second installation chamber 52 is adapted to the shape of the series-wound fan 521. The installation method of the series-wound fan 521 in the second installation chamber 52 is: the second installation chamber 52 supports the series-wound fan 521, and the sealing performance of the series-wound fan 521 in the second installation chamber 52 is ensured through a sealing member; a shock-absorbing soft rubber is provided at the top of the series-wound fan 521 close to the first cover 3, and the shock-absorbing soft rubber is clamped between the series-wound motor 521 and the first cover 3. The first installation opening 61 on the first installation chamber 51 is used to install the purification component 01 in the air duct more quickly; when a double air duct is formed on the housing 2, the series-wound fan 521 in the second air duct 04 is arranged in the second installation chamber 52, and the first ventilation opening 62 is one of the ventilation openings passed by the second air duct 04.

[0053] See Figure 5, a second installation opening 32 is provided on the upper machine cover 3. The first installation opening 61 is opposite to and communicates with the second installation opening 32, and a cover plate 33 covers the second installation opening 32. When two air ducts are formed inside the purifier, the first air duct is located inside the housing, and the second air duct is located on the side of the upper machine cover 3 facing the housing 2. A partition block 34 is protrudingly provided on the side wall of the cover plate 33 facing the housing 2. Based on the side of the cover plate 33 facing away from the top cover 4, the partition block 34 has a certain thickness. A hollow portion 341 is provided inside the partition block 34. The hollow portion 341 penetrates through the partition block 34 along the direction of air flow in the air duct 04. The second air duct 04 is formed inside the hollow portion 34. The partition block 34 covers the first installation opening 61, and the second air duct 04 penetrates through the partition block 34. The setting of the partition block 34 enables the formation of the second air duct 04 on the first cover body 3 while the partition block 34 covers the first installation opening 61, realizing the independence of the first air duct 03 and the second air duct 04 respectively. A first sealing member 331 is provided between the cover plate 33 and the housing 2, and the first sealing member 331 is arranged along the circumference of the first installation opening 61; a second sealing member 332 is provided between the cover plate 33 and the first cover body 3, and the second sealing member 332 is arranged along the circumference of the second installation opening 32. The setting of the sealing members further ensures the sealing performance of the first air duct 03 and the second air duct 04. When the cover plate 33 covers the second installation opening 32, the partition block 34 penetrates through the second installation opening 32, and the partition block 34 covers the first installation opening 61. Thus, the partition block 34 abuts against the first sealing member 331, thereby ensuring the sealing performance of the first air duct 03. The cover plate 34 abuts against the second sealing member 332 on the upper machine cover 3, ensuring the sealing performance of the second air duct 04. In addition, at least one grasping recess 35 is provided on the side wall of the cover plate 33 facing away from the first air duct; when the cover plate 33 is removed from the housing 2, the setting of the recess 35 makes it easier to pick up the cover plate 33.

[0054] In this embodiment, a first sealing plate 36 is convexly provided on one side of the first cover 3 facing the housing 2. The first sealing plate 36 is arranged circumferentially along the first ventilation opening 62. A first sealing groove 23 is provided on one side of the housing 2 facing the first cover 3, and the first sealing plate 36 is located in the first sealing groove 23. Based on the side wall of the first cover 3 facing the housing 2, the protruding height of the partition block 34 (i.e., the thickness of the partition block 34 based on the side of the cover plate 33 facing away from the top cover 4) is the same as the protruding height of the first sealing plate 36. A second ventilation opening 63 is provided between the first sealing plate 36 and the partition block 34, and the first ventilation opening 62 is communicated with the second ventilation opening 63. By arranging the first sealing plate 36, the setting height of the first ventilation opening 62 and the second ventilation opening 63 of the second installation chamber 52 is raised, ensuring that the second air duct sequentially passes through the first ventilation opening 62, the second ventilation opening 63 and the partition block 34. Since the height of the partition block 34 is the same as the height of the first sealing plate 36, the airtightness of the second air duct 04 is ensured. A second ventilation opening 63 is provided between the first sealing plate 36 and the partition block 34, and the first ventilation opening 62 is communicated with the second ventilation opening 63. Since the fan in the second air duct is a series-wound fan 521, the air outlet 5211 of the series-wound fan 521 is higher than the air inlet 5212 of the series-wound fan 521. The series-wound fan 521 is located in the second installation chamber 52, and the air outlet 5211 of the series-wound fan 521 passes through the first ventilation opening 62. Due to the height setting structure of the air inlet 5212 and the air outlet 5211 of the series-wound fan 521, it better matches the upper and lower layered structure of the first air duct 03 and the second air duct 04. Due to the arrangement of the first sealing plate 36, the air outlet 5211 of the series-wound fan 521 is arranged opposite to the first sealing plate 36, so that the air outlet 5211 of the series-wound fan 521 is directly opposite to the second ventilation opening 63, and thus air flows through the first ventilation opening 62 and into the partition block 34. An air duct block 37 is provided on the upper cover 3. The second air duct 04 passes through the air duct block 37, and the air duct block 37 is communicated with the air outlet 72 of the second air duct on the upper cover 3. Along the air flow direction of the second air duct 04, the air inlet end of the air duct block 37 abuts against the partition block 34, and the hollow part 341 is communicated with the inside of the air duct block 371. The air outlet end of the air duct block 37 abuts against the second air outlet 72. The width of the air duct block 10 gradually decreases along the air flow direction of the second air duct 02, so that the air pressure change in the air duct block 37 forces the air speed to increase, and the air is ejected from the air outlet 73 of the second air duct in a jet form. And a heating element 371 is provided in the air duct block 37 to increase the air temperature in the air duct block 37, which can achieve faster hand drying. At the same time, when drying hands in colder weather, the comfort is better.Therefore, along the air flow direction of the second air duct 04, the air in the second air duct 04 enters the second installation chamber 52 from the second air inlet 72, and then flows from the air inlet 5212 of the second fan 521 to the air outlet 5211 of the second fan 521 (at this time, the second air duct 04 passes through the first ventilation opening 62), and successively passes through the second ventilation opening 63, the hollow part 341 of the partition block 34, the air duct block 37, and the second air outlet 72.

[0055] On one side of the second cover 1 facing the housing 2, a second sealing groove 11 is provided. On one side of the housing 2 facing the second cover 1, a second sealing plate 24 is provided. The second sealing plate 24 is correspondingly arranged in the second sealing groove 11. The second sealing plate 24 is arranged along the circumference of the third ventilation opening 64 of the second installation chamber 52 facing the second cover 1, and the second sealing plate 24 extends to the air inlet 66 of the second air duct. In summary, referring to Figure 6 , the air flow direction of the first air duct 03 is: the air penetrates through the first air inlet 65 on the housing 2, passes through the first installation chamber 51, and then flows out from the first air outlet 71 on the housing. The air flow direction of the second air duct 04 is: the air penetrates through the second air inlet 66 on the housing 2, enters the second installation chamber 52, successively penetrates through the first ventilation opening 62, the second ventilation opening 63, the partition block 34, and the air duct block 37, and then flows out from the second air outlet 72 on the upper cover 3. In this embodiment, the first air inlet 65 and the second air inlet 66 are oppositely arranged. When the air purifier is suspended on the wall, the first air outlet 71 and the second air outlet 72 are located at the bottom of the air purifier, and the first air outlet 71 and the second air outlet 72 are located between the first air inlet 65 and the second air inlet 66.

[0056] Referring to Figure 10 , at least one insertion opening 38 is provided on the first cover 3. The insertion opening 38 extends into the inner housing 22, and the insertion opening 38 is respectively communicated with the first air duct 03 and the second air duct 04. The insertion opening 38 and the second installation opening 32 are located on the same side of the first cover 3. In this embodiment, the insertion opening 38 and the second installation opening 32 are provided on one side of the first cover 3 facing the third cover 4. The insertion opening 38 and the installation opening 61 are located on the same side of the first cover 3, so that the installation directions of the internal air duct components are the same, and the layout and installation of the internal air duct components are simpler. When the upper cover 3 is not included in the purifier, the insertion opening 38 can be on the same side of the housing 2 facing the top cover 4 as the first installation opening 61. In this embodiment, two insertion openings are provided on the first cover 3, namely the first insertion opening 380 and the second insertion opening 383. The first insertion opening 380 is communicated with the first air duct 03, and the second insertion opening 383 is communicated with the second air duct 04.

[0057] In this embodiment, the non-powered purification function component and / or the aromatherapy are installed into the air duct through the insertion opening 38 by means of a limiting structure. The non-powered purification function component can be a primary filter screen 014 and a HAPE filter screen 015.

[0058] The limiting structure includes a limiting plate 381. The limiting plate 381 is connected to the purification function component 01 and is located outside the first insertion opening 381. The limiting plate 381 is adapted to the insertion opening 38. A first grasping recess 39 is provided on the housing 2. The first grasping recess 39 communicates with the first insertion opening 380. The limiting plate 381 is located above the first grasping recess 39, so that the housing 2 supports the limiting plate 381. At this time, the purification function component 01 can be the primary filter screen 014. The primary filter screen 014 is arranged on the mounting frame 310. The mounting frame 310 includes a plurality of bone plates 3101 which are cross-connected with each other to fully unfold the primary filter screen 014. The limiting plate 381 is connected to the mounting frame 310. In this embodiment, the primary filter screen 014 is located in the first air duct 03. Along the air flow direction of the first air duct 03, the primary filter screen 014 is located between the first air inlet 65 and the powered purification function component.

[0059] When the purification function component is the HAPE filter screen 015, the purification function component 01 is in interference fit with the second insertion opening 383. A second grasping recess 311 and a third grasping recess 312 are provided on the housing 2. The second insertion opening 383 is located between the second grasping recess 311 and the third grasping recess 312. The second grasping recess 311 and the third grasping recess 312 communicate with the second insertion opening 383 respectively. When the purification function component is arranged in an interference manner, the purification function component can be better taken out from the second insertion opening 383 through the two grasping recesses. In this embodiment, the HAPE filter screen 015 is located in the second air duct 04. The HAPE filter screen 015 is located between the second air inlet 66 and the second fan 521.

[0060] See Figure 11 and Figure 12, when the aromatherapy 016 is arranged in the air duct through the insertion opening 38, the limiting structure is the limiting chamber 0160. The aromatherapy 016 is arranged in the limiting chamber 0160. The limiting chamber 0160 is located in the first air duct 03. The first opening 01601 of the limiting chamber 0160 communicates with the insertion opening 38. A plurality of ventilation holes 0163 are arranged on the side wall of the limiting chamber 0160, and the air duct penetrates through the ventilation holes 0163. When the aromatherapy 016 is installed in the air duct through the limiting chamber 0160, the aromatherapy sequentially penetrates through the insertion opening 38 and the first opening 01601 of the limiting chamber 0160, and then enters the limiting chamber 0160. Since the air duct penetrates through the ventilation holes 0163, when the air in the air duct flows, the air passes through the aromatherapy 016, carries the fragrance and penetrates through the ventilation holes 0163, and then flows out of the device from the air outlet of the air duct. In this embodiment, the aromatherapy 016 is located in the first air duct 03 for air purification.

[0061] The limiting chamber 0160 includes a support plate 0161 and a baffle plate 0162. The support plate 0161 serves as the bottom of the limiting chamber 0160, and the support plate 0161 is used to support the aromatherapy in the limiting chamber 0160. The baffle plate 0162 is connected to the support plate 0161, and the baffle plate 0162 is arranged along the circumference of the support plate 0161 to enclose the limiting chamber 0160. The baffle plate 0162 serves as the side wall of the limiting chamber 0160. The ventilation holes 0163 are arranged on the side wall of the baffle plate 0162 penetrated by the air duct. The aromatherapy 016 is placed in the limiting chamber 0160 to realize the installation of the aromatherapy 016 in the air duct.

[0062] The aromatherapy 016 can also be installed in the air duct through the mounting bracket 310. The mounting bracket 310 includes a plurality of skeletons 3101, and the plurality of skeletons 3101 are cross-connected to each other. The initial filter 014 is arranged on the mounting bracket 310. The aromatherapy 016 is arranged on the mounting bracket 310 through the limiting concave portion 3103. Specifically, limiting blocks 3102 are respectively arranged on two adjacent and oppositely arranged skeletons 3101. A skeleton 3101 is connected between the two limiting blocks 3102. Limiting concave portions 3103 are respectively arranged on the two limiting blocks 3102. The opening directions of the lower concave openings 3104 of the two limiting concave portions 3103 are the same, and an opening 3105 is also arranged on one side of the two limiting blocks 3102 facing each other. After the aromatherapy 016 penetrates through the lower concave opening 3104 of the limiting concave portion 3103 and is arranged in the limiting concave portion 3103, the aromatherapy 016 is clamped between the two limiting blocks 3102 through the two openings 3105, and the aromatherapy 016 is in interference fit with the two limiting blocks 3102 respectively.

[0063] In this embodiment, the method of fixing the aromatherapy 016 includes both a limiting chamber 0160 and a mounting bracket 310. Specifically: a limiting chamber 0160 is provided at the insertion and extraction opening corresponding to the mounting bracket 310. The width L1 of the limiting chamber 0160 is smaller than the width L2 of the insertion and extraction opening 38. A second opening 01602 is provided on the limiting chamber 0160, and the air duct passes through the second opening 01602. The aromatherapy 016 is located at the second opening 01602 and is sandwiched between the baffle 0162 of the limiting chamber 0160 and the mounting bracket 310. So that after the mounting bracket 310 fixed with the aromatherapy 016 penetrates the insertion and extraction opening, the aromatherapy 016 is located inside the limiting chamber 0160, and the mounting bracket 310 is outside the limiting chamber 0160. The aromatherapy 016 is sandwiched between the limiting chamber 0160 and the mounting bracket 310. The unused aromatherapy has a clearance fit with the side wall of the limiting chamber 0160 inside the limiting chamber 0160. An initial filter 014 is also provided on the first side of the mounting bracket 310 in this embodiment. The aromatherapy 016 is provided on the second side of the mounting bracket 310. The first side and the second side of the mounting bracket 310 are oppositely arranged. Along the air flow direction of the air duct, the aromatherapy 016 is arranged close to the air outlet of the air duct. When the initial filter 014 and the aromatherapy 016 are both provided on the mounting bracket 310, the initial filter 014 and the aromatherapy 016 can be installed in the air duct from the same insertion and extraction opening 38. The arrangement of reducing the number of insertion and extraction openings 38 on the housing 2 makes the layout of the housing 2 simpler. As another implementation manner, the limiting chamber 0160 and the mounting bracket 310 equipped with the initial filter 014 can be arranged at different insertion and extraction openings 38 in the air duct.

[0064] The mounting bracket 310 is provided with a first clamping block and a limiting plate 381. A limiting step 382 is provided at the insertion and extraction opening 38. A second clamping block is provided on the inner side wall of the air duct. The mounting bracket 310 penetrates the insertion and extraction opening 38. After the first clamping block passes through the second clamping block, they are cooperatively abutted. The limiting plate 381 abuts against the limiting step 382. When the mounting bracket 310 penetrates the insertion and extraction opening 38 and enters the air duct, driving the first clamping block to pass through the second clamping block realizes the clamping structure of the first clamping block and the second clamping block, and at the same time the limiting plate 381 just abuts against the limiting step 382, avoiding the situation that the mounting bracket 310 falls into the air duct and cannot be taken out. And under the mutual cooperation of the first clamping block and the second clamping block, during the operation of the purifier, the mounting bracket 310 is prevented from popping out of the air duct. When the mounting bracket 310 penetrates the insertion and extraction opening and moves away from the insertion and extraction opening 38, the first clamping block moves away from the second clamping block after passing through the second clamping block, driving the release of the clamping structure between the first clamping block and the second clamping block, and pulling out the mounting bracket 310 from the air duct.

[0065] In this embodiment, there are two air ducts in the air purifier. The power of the series-wound fan 521 arranged in the second air duct 04 is greater than that of the axial-flow fan 013 in the first air duct 03. The axial-flow fan 013 in the first air duct 04 can be used for a long time for air purification. The aromatherapy 016 is located in the first air duct 03. As the purification fan in the first air duct 03 works for a long time, the aromatherapy 016 continuously releases fragrance into the room, improving the indoor comfort. The fan in the second air duct 03 has a relatively large power and is used for hand drying. It can better protect the fan while saving costs. Each of the two air ducts corresponds to a plug-in opening 38, so that purification functional components are arranged in the air ducts respectively, and the air in both air ducts can be purified. In this embodiment, the non-powered purification functional component installed in the first air duct 03 for purification through the plug-in opening 38 is the primary filter 014, and the non-powered purification functional component installed in the second air duct 04 for hand drying through the plug-in opening 38 is the HAPE filter 015.

[0066] When there is one air duct in the air purifier, the air purifier does not need to be provided with an upper cover 3, and then the cover plate 33 and the plug-in opening 38 can be arranged on the housing. The powered purification functional components such as the high-energy plasma tube 011, the low-energy plasma generator, and the ultraviolet lamp are installed in the air duct through the installation opening, and the non-powered purification functional components such as the initial filter and the filter are arranged in the air duct through the plug-in opening 38. Different purification functional components are arranged in the air duct through different openings for distinction, which can better ensure safety. And the top cover 4 covers the upper cover 3 or the housing 2 through a combination of a buckle structure and screws. The buckle structure and the screws are respectively arranged at the front and rear positions of the top cover 4 to realize the front and rear limit of the top cover 4 on the first cover 3 and ensure the fixation of the top cover 4. The cover plate 33 is locked on the housing 2 through a plurality of screws 331, but there is only one screw used on the top cover 4, which is less than the number of screws 331 used on the cover plate 33. The buckle structure on the top cover 4 can be unlocked by simply lifting it with force and loosening one screw, while the cover plate 33 needs to be loosened one by one by turning the screws 331 with force. The difficulty of unlocking the buckle structure is greater than that of unlocking the screws 331. After the user simply opens the top cover, the replacement of the internal components of the plug-in opening 38 can be directly extracted, and the technical requirements are relatively low. The internal components of the plug-in opening 38 can be replaced simply under the condition of safety. The powered purification functional components are locked in the air duct through the cover plate 33 and the screws 331 and need more cumbersome steps to be opened, making it not easy to be opened, thus further ensuring safety. The cover plate 33 is installed with a plurality of screws 331, which can more closely arrange the cover plate 33 on the first cover 3 and ensure the tightness of the second air duct 04.

[0067] The purification functional component is a high-energy plasma tube 011 or an ultraviolet lamp. The dual-duct air purifier includes a control component 9 and a button. The heating element and the purification functional component are respectively connected to the button, and the button is connected to the control component. The button is arranged on the side of the first cover away from the housing. The high-energy plasma tube 011, the ultraviolet lamp, and the heating element 371 are high-power electrical appliances. The start and stop of the above three components are controlled by the button to ensure the electrical safety of the above three components.

[0068] The air flow direction of the first duct 03 is as follows: Air penetrates through the first air inlet 65 on the housing 2, enters the first installation chamber 51, and then successively passes through the primary filter 014, the aromatherapy 016, the high-energy plasma tube 011, the ozone removal net 012, and the axial flow fan 013, and finally flows out from the first air outlet 71 on the housing 2. The air flow direction of the second duct 04 is as follows: Air penetrates through the second air inlet 66 on the housing 2, enters the second installation chamber 52, passes through the series-wound fan 521 in the second installation chamber 52, and at the same time penetrates through the first ventilation opening 62, and the air exits from the air outlet 5211 of the series-wound fan 521, passes through the second ventilation opening 63, the hollow part in the partition block 34, and the duct block 37, and then flows out from the second air outlet 72 on the upper cover 3.

[0069] When the air purifier is installed, the bottom cover 1 contacts the wall. An installation plate is provided on the bottom cover 1, and the installation plate is installed on the wall by screws. The installation plate and the bottom cover 11 are connected by a snap structure. In order to facilitate users to dry their hands better, the two air outlets 7 are arranged on the side of the device facing the ground. An infrared sensor is also provided beside the air outlet 7, and the infrared sensor is connected to the control component. The two air inlets 6 are respectively arranged on the left and right sides of the air outlet 7. When the air purifier is in normal use on the wall, if it is necessary to replace the internal components of the device, it is necessary to open the top cover 4 facing the user, and then the purification functional component at the plug-in opening 38 can be replaced. Then, by opening the cover plate 33, the components in the first installation chamber 51 can be replaced through the first installation opening 61, and it is not necessary to remove the entire device from the wall to replace the internal components of the housing 12. The replacement process is simple and convenient.

[0070] The Chinese invention patent with the publication number CN114484837A and the name of dual-duct assembly and air purification hand dryer discloses an air purification hand dryer (hereinafter referred to as the previous application). The same dual-duct structure is also provided in this air purification hand dryer. The structure of this air purification hand dryer is similar to that of the air purifier of the present invention, but there are differences in the structure forming the dual ducts. By improving the structure forming the dual ducts in the previous application, the present invention realizes more convenient, faster installation, replacement, and disassembly of the components in the dual ducts.

[0071] From the perspective of appearance, refer to the previous application's Figure 1 and the present invention'sFigure 1 , the air-purifying hand dryer of the previous application and the purifier with a hand-drying function of the present invention can be designed in the same shape, both being elliptical cylinders, which is convenient for processing and more aesthetically pleasing. When the two devices are respectively hung on the wall, air inlets are respectively provided on the two side walls of the air-purifying hand dryer of the previous application and the purifier of the present invention, and the two air outlets are respectively located at the bottom of the devices, and the setting positions of the air outlets are between the two side air inlets.

[0072] From the perspective of the internal component setting structure of the device, the air-purifying hand dryer of the previous application includes a double-air duct assembly 1, an air extraction assembly 2, and an air purification assembly 3. The double-air duct assembly 1 includes an outer housing 4, a first inner housing 5, and a second inner housing 6. The outer housing 4 includes a fixed seat 42 and an outer shell 41. The first inner housing 5 and the second inner housing 6 are arranged on the fixed seat 42. The outer shell 41 is cooperatively connected with the fixed seat 42 along the outer periphery of the fixed seat 42 to arrange the first inner housing 5 and the second inner housing 6 inside the outer housing 4. Air ducts are respectively formed inside the first inner housing 5 and the second inner housing 6. It can be seen that the mutually independent first inner housing 5 and second inner housing 6 in the prior application are arranged inside the outer housing 4 in a splicing manner, and cavities are respectively arranged inside the first inner housing 5 and the second inner housing 6, and the cavities are used for installing and placing components. After placing the components in the cavities and buckling them on the fixed seat 42, in the actual installation process, the installation positions of the first inner housing 5 and the second inner housing 6 on the fixed seat 42 need to be determined in cooperation with each other. After determining the positions, the first inner housing 5 and the second inner housing 6 are successively fixed on the fixed seat 42, and this installation process is too cumbersome. The formation of the outer housing 4 in the previous application is equivalent to the cooperation structure between the bottom cover 1, the outer shell 2, and the top cover 4 in the present invention. However, the present invention adds an upper machine cover 3 and the installation methods of the inner housing 22 in the two are different. To complete the assembly of the device more quickly, the inner housing 22 in the present invention is an integral body. Installation chambers 51 / 52 are arranged at different positions on the inner housing 22 of the present invention, and the installation chambers 51 / 52 are used for installing components. The first air duct 03 and the second air duct 04 respectively penetrate different installation chambers 51 / 52. However, the shapes of the inner housing 22, the upper machine cover 3, the bottom cover 1, the top cover 4, and the outer shell are adapted to each other and are respectively elliptical cylinders. In the actual installation process, the bottom cover 1, the outer shell 2, the upper machine cover 3, and the top cover 4 are directly stacked in sequence, and positioning is carried out through the adaptation of the shapes, without repeatedly determining the installation positions of the assembled components and reducing the steps of fixing the components, thus accelerating the assembly speed.

[0073] From the perspective of the design structure of the dual air ducts, the dual air ducts in the prior application and the present invention are independent of each other, corresponding to different air inlets and air outlets respectively. Similarly, one air duct corresponds to the air purification duct with a slower flow rate, and the other air duct corresponds to the hand-drying duct with a faster flow rate. According to the relative positions of the two air inlets and two air outlets in the prior application and the present invention, the relative positions of the two air ducts in the prior application and the present invention are the same. Through the setting of the series-wound fan, the hand-drying duct turns, so that based on the installation wall, the hand-drying duct is located above the purification duct. However, the specific structures of the dual air ducts in the prior application and the present invention are different. In the prior application, a first air duct 11 is arranged in the first inner housing 5, and a second air duct 12 is arranged in the second inner housing 6. The specific formation method of the first air duct 11 in the prior application is as follows: a first air duct section 111 is formed between one air inlet 7 and the first ventilation opening 50 on the first inner housing 5, and a second air duct section 112 is formed between the first ventilation opening 50 of the first inner housing 5 and the first air outlet 8. The first air duct section 111 and the first air duct section 112 are connected to form the first air duct 11. The first air duct 11 ensures the sealing performance of the first air duct 11 in the first inner housing 5 through the connection between the inner mounting seat 51 and the fan cover 52, and then a narrow air duct section 113 is formed through two connecting plates 1131 and connected between the first inner housing 5 and the first air outlet 8. The specific formation method of the second air duct 12 in the prior application is as follows: a third air duct section 121 is formed between one air inlet 7 and the second ventilation opening 61 on the second inner housing 6, and a fourth air duct section 122 is formed between the second ventilation opening 61 and the second air outlet 9. The fourth air duct section 122 is located in the second housing 6. The third air duct section 121 and the fourth air duct section 122 are connected to form the second air duct 12, and a cavity is formed in the second inner housing 5 to form the air duct. However, in the prior application, the first inner housing 5 is not integrally formed. The air duct in the first inner housing 5 is obtained by splicing the inner mounting seat 51, the fan cover 52 and the connecting plate 1131, and the splicing process is cumbersome. In the present invention, two installation chambers 51 / 52 are formed on the inner housing 22, and one air duct correspondingly penetrates through one installation chamber. When the inner housing 22 is matched with the upper machine cover 3 and the top cover 4, the formation of the air duct can be completed, and there is no need to splice a variety of small-sized components, which improves the assembly efficiency of the device.

[0074] Furthermore, referring to the Figure 2 of the prior application Figure 6, in the dual-air duct structure of the present invention, the positional relationship between the first air duct and the second air duct, the position of the air inlet, the position of the air outlet, etc. are basically the same as the settings in the previous application. However, the specific structural settings of the first air duct and the second air duct are different. In the previous application, the first inner housing 5 and the second inner housing 6 were buckled on the fixed seat 42 after installing components, and a sealed air duct was formed inside the first inner housing 5 and the second inner housing 6. When disassembling the internal components of the air duct, it was necessary to disassemble the first inner housing 5 and the second inner housing 6 to further disassemble the internal components of the air duct, and the operation was cumbersome. In the present invention, based on the fact that there are multiple openings (the insertion and extraction opening 38 and the installation opening 61) provided on the upper machine cover 3, the air duct is communicated with the openings, so that the installation and disassembly of the internal components of the air duct are more convenient, and the problem of cumbersome disassembly operation of the internal components of the air duct existing in the previous application is solved. The present invention combines the installation chamber on the inner housing and the partition block 34 with a certain thickness of the hollow part to form the mutually independent and sealed first air duct 03 and second air duct 04. Therefore, based on solving different technical problems, different structural air duct designs are formed inside the outer housing in the previous application and the present invention.

[0075] From the perspective of the internal components of the device, an electrified purification functional component and a non-electrified functional component are respectively installed in the air purification hand dryer of the previous application and the air purifier of the present invention. Among them, the non-electrified purification functional components are all correspondingly arranged in the air duct for hand drying, and the electrified purification functional components are correspondingly arranged in the air duct for air purification with a slower flow rate. The difference is that the purification functional components in the previous application are installed on the fixed seat in a closed manner, and the purification functional components of the present invention are installed in the inner housing in an open manner through the settings of the insertion and extraction opening 38, the installation opening 61 and the partition block 34.

[0076] Finally, it should be emphasized that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An air purifier, characterized in that, Comprising: a housing and a top cover, a first air duct is arranged inside the housing, a first installation opening is arranged on the housing, the first installation opening is communicated with the first air duct, a cover plate is detachably arranged on the first installation opening, the cover plate covers the first installation opening, and the top cover covers one side of the housing where the first installation opening is arranged; At least one insertion opening is arranged on the housing, and at least one of the insertion openings is communicated with the first air duct; A purification functional component is arranged in the first air duct, the purification functional component includes an electrically energized purification functional component and a non-electrically energized purification functional component, the electrically energized purification functional component is installed in the first air duct through the first installation opening, and the non-electrically energized purification functional component is installed in the first air duct through the insertion opening.

2. The air purifier according to claim 1, characterized in that: The first installation opening and at least one of the insertion openings are located on the same side of the housing, and the top cover covers the first installation opening and at least one of the insertion openings.

3. The air purifier according to claim 1, characterized in that: The electrically energized purification functional component is a high-energy plasma tube, and an ozone removal net is arranged in the first air duct; And / or the non-electrically energized purification functional component is an initial filter or an HAPE filter.

4. The air purifier according to claim 3, characterized in that: The ozone removal net is fixed in the first air duct through a limiting groove or an interference fit.

5. The air purifier according to claim 4, characterized in that: At least two limiting ribs are arranged on the inner side wall of the first air duct, and the limiting groove is formed between at least two of the limiting ribs; And / or the inner side wall of the first air duct bulges towards the outside of the first air duct to form the limiting groove.

6. The air purifier according to claim 1, characterized in that : The top cover is covered on the housing through a buckle structure, and the cover plate is locked on the housing through a plurality of screws; And / or at least one grasping recess is arranged on the side wall of the cover plate facing away from the first air duct.

7. The air purifier according to any one of claims 1 to 6, characterized in that: A first cover body is arranged between the housing and the top cover, the first cover body covers the housing, and a second air duct is formed on the side wall of the first cover body facing the housing.

8. The air purifier according to claim 7, characterized in that: A second installation opening is arranged on the first cover body, the first installation opening is communicated with the second installation opening, and the cover plate covers the first installation opening and the second installation opening.

9. The air purifier according to claim 8, characterized in that: A partition block is protrudingly arranged on the side wall of the cover plate facing the housing, a hollow part is arranged on the partition block, the hollow part penetrates through the partition block along the air flow direction of the second air duct, the second air duct penetrates through the hollow part, and the partition block covers the first installation opening.

10. The air purifier according to claim 9, characterized in that: A first installation chamber, a second installation chamber, a first air inlet, a second air inlet and a first air outlet are arranged on the housing, the first air duct is formed between the first air inlet and the first air outlet, the first air duct penetrates through the first installation chamber, the first installation chamber is used for installing a purification functional component and a first fan, and the first installation opening is communicated with the first installation chamber; A second air outlet is arranged on the first cover body, the second air duct is formed between the second air inlet and the second air outlet, along the air flow direction of the second air duct, the second air duct sequentially penetrates through the second installation chamber and the hollow part, and the second installation is used for installing a second fan.

11. The air purifier according to claim 8, characterized in that: A first seal is provided upward on the outer periphery of the first mounting opening, and the first seal abuts between the cover plate and the housing; and / or a second seal is provided upward on the outer periphery of the second mounting opening, and the second seal abuts between the cover plate and the first cover body.

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