Air purifier

Abstract

The utility model discloses an air purifier relates to air purifier technical field, wherein, air purifier includes the casing, and the casing is equipped with air inlet, air outlet and air flue, and the casing includes air flue piece and air outlet panel, and the air flue piece is equipped with the air flue, and the air flue's air inlet end is linked together with air inlet, and the air flue's air outlet end is linked together with air outlet, and the air outlet panel is equipped with the air outlet, and one of air outlet panel and air flue piece is equipped with the clamping protruding part, and the other is equipped with the clamping hole, and the clamping protruding part can be clamped in the clamping hole, to make air outlet panel install on the air flue piece, and the technical scheme provided by the utility model can improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of air purifier technology, and in particular to an air purifier. Background Technology

[0002] In related technologies, the casing of an air purifier is typically assembled from multiple parts, including an air duct shell and several panels. These parts are usually assembled using a method of fastening numerous screws. On the one hand, fastening a large number of screws requires workers a significant amount of time, which is detrimental to improving production efficiency. On the other hand, some screws are exposed, which is detrimental to the product's appearance and aesthetics, especially in products where the panels are removable to replace the purification module. After the panels are removed, many screws that were originally covered by the panels are exposed. Utility Model Content

[0003] The main objective of this invention is to provide an air purifier that addresses at least one of the aforementioned technical problems.

[0004] To achieve the above objectives, the air purifier proposed in this utility model includes a housing, wherein the housing is provided with an air inlet, an air outlet, and an air duct, and the housing includes:

[0005] A duct component, wherein the duct component is provided with a duct, the air inlet end of the duct is connected to the air inlet port, and the air outlet end of the duct is connected to the air outlet port; and

[0006] An air outlet panel is provided with an air outlet. One of the air outlet panel and the air duct component is provided with a snap-fit ​​protrusion, and the other is provided with a snap-fit ​​hole. The snap-fit ​​protrusion can be snapped into the snap-fit ​​hole so that the air outlet panel is installed on the air duct component.

[0007] In one embodiment, the air duct component includes two air duct shells distributed and connected along a first direction, the air duct being formed between the two air duct shells, and the two side edges of the air outlet panel being connected to the two air duct shells respectively.

[0008] In one embodiment, the snap-fit ​​hole includes a first snap-fit ​​segment and a second snap-fit ​​segment distributed and connected along a second direction. The width of the first snap-fit ​​segment is greater than that of the second snap-fit ​​segment. After the snap-fit ​​protrusion snaps into the first snap-fit ​​segment along a third direction, the air outlet panel can be translated along the second direction so that the snap-fit ​​protrusion is at least partially inserted into the second snap-fit ​​segment and engages with the second snap-fit ​​segment at the upper limit in the first direction. The first direction, the second direction, and the third direction are arranged in pairs.

[0009] In one embodiment, the snap-fit ​​protrusion includes a connecting plate and a snap tongue disposed on the connecting plate. The connecting plate is elastically deformable so that the snap tongue snaps into the first snap hole segment. The connecting plate is provided with two limiting plate surfaces opposite to each other in the first direction, and the second snap hole segment is provided with two limiting wall surfaces opposite to each other in the first direction. The limiting plate surfaces abut against the limiting wall surfaces to achieve a limiting engagement between the snap-fit ​​protrusion and the second snap hole segment.

[0010] In one embodiment, the air outlet panel is provided with a first mounting hole, and the air duct shell is provided with a corresponding second mounting hole. The axis of the first mounting hole and the second mounting hole both extend along the second direction, and the first mounting hole and the second mounting hole are connected by screws.

[0011] In one embodiment, the air outlet panel is provided with the first mounting hole at both ends in the second direction.

[0012] In one embodiment, the side edge of the air outlet panel is provided with at least two of the said snap-fit ​​holes or at least two of the said snap-fit ​​protrusions along the second direction.

[0013] In one embodiment, the housing further includes an air inlet panel, which has the air inlet and is detachably connected to the air duct component. After the air inlet panel is removed, the snap-fit ​​protrusion and the snap-fit ​​hole are not exposed.

[0014] In one embodiment, the air purifier further includes a purification module. The duct component is provided with a mounting groove for receiving the purification module. The side edge of the duct component extends inward to engage with a side plate. The side plate and the mounting groove side wall are spaced apart to create a clearance space. The side plate is provided with a engagement hole. The engagement protrusion is provided on the inner side of the air outlet panel and can extend into the clearance space. The air outlet panel covers the side plate.

[0015] In one embodiment, at least two air inlet panels and at least two purification modules are provided. The at least two air inlet panels are respectively disposed on opposite sides of the air duct component and are connected to the two air inlet ends of the air duct in a one-to-one correspondence. The at least two purification modules are respectively disposed in the mounting slots of the two air inlet ends.

[0016] In one embodiment, the second direction is the height direction, and at least two air outlet panels are provided. The at least two air outlet panels are respectively arranged on opposite sides of the air duct component and are connected to the two air outlet ends of the air duct one by one.

[0017] In one embodiment, the air purifier further includes a centrifugal fan, the centrifugal fan including a centrifugal impeller, the centrifugal impeller having two sets of blades opposite each other in the axial direction to form an air inlet side on both sides of the centrifugal impeller, the air inlet having two inlets, one air inlet side corresponding to one air inlet, the two sets of blades being arranged in a symmetrical or asymmetrical structure.

[0018] In one embodiment, the housing further includes a top cover and a bottom cover, the top cover being installed on the top of the air duct component and the bottom cover being installed on the bottom of the air duct component.

[0019] The technical solution of this utility model achieves the installation of the air outlet panel by matching the snap-fit ​​protrusion and snap-fit ​​hole, which can replace some or even all of the screws, thereby reducing the number of screws used in the assembly of air purifiers, saving workers' assembly time and improving production efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of an embodiment of the air purifier provided by this utility model;

[0022] Figure 2 for Figure 1 The illustrated embodiment is a schematic diagram after the air intake panel has been removed;

[0023] Figure 3 for Figure 1 Exploded view of the embodiment shown;

[0024] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0025] Figure 5 for Figure 3 A magnified view of a section at point B in the middle;

[0026] Figure 6 for Figure 3 A magnified view of a section at point C;

[0027] Figure 7 for Figure 1 A cross-sectional view of the embodiment shown;

[0028] Figure 8 for Figure 7 A magnified view of a section at point D;

[0029] Figure 9 for Figure 7 A magnified view of a section at point E in the middle;

[0030] Figure 10 for Figure 1 Another cross-sectional view of the illustrated embodiment.

[0031] Explanation of icon numbers:

[0032] 100. Housing; 101. Air inlet; 102. Air outlet; 103. Air duct; 110. Air duct component; 111. Air duct housing; 112. Second mounting hole; 113. Mounting groove; 114. Snap-fit ​​side plate; 115. Clearance space; 120. Air outlet panel; 121. First mounting hole; 130. Snap-fit ​​protrusion; 131. Connecting plate; 132. Tongue; 133. Limiting plate surface; 134. Reinforcing rib; 140. Snap-fit ​​hole; 141. First snap-fit ​​section; 142. Second snap-fit ​​section; 143. Limiting wall surface; 150. Air inlet panel; 160. Purification module; 170. Top cover; 180. Bottom cover; 200. Centrifugal fan.

[0033] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0035] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0036] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0037] In related technologies, the casing of an air purifier is typically assembled from multiple parts, including an air duct shell and several panels. These parts are usually assembled using a method of fastening numerous screws. On the one hand, fastening a large number of screws requires workers a significant amount of time, which is detrimental to improving production efficiency. On the other hand, some screws are exposed, which is detrimental to the product's appearance and aesthetics, especially in products where the panels are removable to replace the purification module. After the panels are removed, many screws that were originally covered by the panels are exposed.

[0038] In view of this, the present invention proposes an air purifier, which aims to solve at least one of the above-mentioned technical problems.

[0039] Please see Figures 1 to 3 In one embodiment of the present invention, the air purifier includes a housing 100, which has an air inlet 101, an air outlet 102 and an air duct 103. The housing 100 also includes an air duct component 110 and an air outlet panel 120. The air duct component 110 has an air duct 103, the air inlet end of which is connected to the air inlet 101 and the air outlet end of which is connected to the air outlet 102.

[0040] Please refer to the following: Figures 4 to 6 The air outlet panel 120 is provided with an air outlet 102. One of the air outlet panel 120 and the air duct component 110 is provided with a snap-fit ​​protrusion 130 and the other is provided with a snap-fit ​​hole 140. The snap-fit ​​protrusion 130 can be snapped into the snap-fit ​​hole 140 so that the air outlet panel 120 is installed on the air duct component 110.

[0041] In this way, the air outlet panel 120 is installed by the cooperation of the snap-fit ​​protrusion 130 and the snap-fit ​​hole 140, which can replace some or even all of the screws, thereby reducing the number of screws used in the assembly of the air purifier, saving workers' assembly time and improving production efficiency.

[0042] Please see Figure 3 Optionally, the air duct component 110 includes two air duct shells 111 distributed and connected along a first direction, with the air duct 103 formed between the two air duct shells 111, and the two side edges of the air outlet panel 120 respectively connected to the two air duct shells 111. This facilitates the manufacturing and forming of the air duct shells 111, resulting in a simple and easily achievable structure. Furthermore, the connection between the side edges of the air outlet panel 120 and the air duct shells 111 creates a mutually constrained assembly relationship, improving the structural stability of the housing 100. Of course, in other embodiments, the air duct component 110 can be configured as a single part, or composed of three or more parts.

[0043] Please see Figures 4 to 6 In this embodiment, the snap-fit ​​protrusion 130 is provided on the air outlet panel 120, and the snap-fit ​​hole 140 is provided on the air duct shell 111. For ease of explanation, the following description will use the example of the snap-fit ​​protrusion 130 being provided on the air outlet panel 120. Of course, in other embodiments, the snap-fit ​​protrusion 130 may be provided on the air duct shell 111, and the snap-fit ​​hole 140 may be provided on the air outlet panel 120; or, in embodiments where there are multiple snap-fit ​​protrusions 130 and snap-fit ​​holes 140, some snap-fit ​​protrusions 130 may be provided on the air duct shell 111, and some snap-fit ​​protrusions 130 may be provided on the air outlet panel 120.

[0044] The two side edges of the air outlet panel 120 are respectively connected to the two air duct shells 111. The two side edges of the air outlet panel 120 are provided with snap-fit ​​protrusions 130, and the side edges of the two air duct shells 111 are respectively provided with snap-fit ​​holes 140. The two sides of the air outlet panel 120 are snapped to the two air duct shells 111 through the snap-fit ​​protrusions 130.

[0045] Please see Figures 6 to 9Optionally, the snap-fit ​​hole 140 includes a first snap-fit ​​segment 141 and a second snap-fit ​​segment 142 distributed and connected along a second direction. The width of the first snap-fit ​​segment 141 is greater than that of the second snap-fit ​​segment 142. After the snap-fit ​​protrusion 130 snaps into the first snap-fit ​​segment 141 along a third direction, the air outlet panel 120 can be translated along the second direction so that the snap-fit ​​protrusion 130 is at least partially inserted into the second snap-fit ​​segment 142 and engages with the second snap-fit ​​segment 142 at its upper limit in the first direction. The first direction, the second direction, and the third direction are arranged in pairs. That is, in this embodiment, the air outlet panel 120 needs to first snap into the first snap-fit ​​segment 141 along the third direction and then snap into the second snap-fit ​​segment 142 along the second direction in order to complete its fastening assembly with the air duct shell 111.

[0046] Specifically, due to the larger width of the first locking segment 141, the locking protrusion 130 can easily and elastically engage with the locking hole 140. Then, with the second locking segment 142 limiting the locking protrusion 130 in the first direction, the air outlet panel 120 and the duct shell 111 cannot undergo relative displacement in the first direction, thereby improving the reliability and stability of the connection between the air outlet panel 120 and the duct shell 111. In other words, the two duct shells 111 are spliced ​​together along the first direction, and with the air outlet panel 120 as a medium, the tightness and reliability of the connection between the two duct shells 111 in the first direction can be further strengthened, thereby improving the airtightness of the duct 103.

[0047] Of course, in other embodiments, the second snap-hole section 142 may not be provided, and the air outlet panel 120 may not be able to be translated along the second direction. That is, after the air outlet panel 120 is directly snapped into the snap-hole 140 along the third direction, the snap-fit ​​assembly of the air outlet panel 120 and the air duct shell 111 is completed.

[0048] Please refer to the following: Figure 4 Optionally, the snap-fit ​​protrusion 130 includes a connecting plate 131 and a snap-fit ​​tongue 132 disposed on the connecting plate 131. The connecting plate 131 is elastically deformable so that the snap-fit ​​tongue 132 snaps into the first snap-fit ​​hole section 141. The connecting plate 131 is provided with two opposing limiting plate surfaces 133 in a first direction, and the second snap-fit ​​hole section 142 is provided with two opposing limiting wall surfaces 143 in a first direction. The limiting plate surfaces 133 abut against the limiting wall surfaces 143 to achieve a limiting fit between the snap-fit ​​protrusion 130 and the second snap-fit ​​hole section 142. Thus, the structure is simple and easy to implement.

[0049] Specifically, in this embodiment, the first direction refers to the front-to-back direction, the second direction refers to the up-and-down direction, and the third direction refers to the left-to-right direction. That is, the air outlet panel 120 is located on the left and / or right side of the housing 100. The air outlet panel 120 can first be inserted into the first locking segment 141 of the locking hole 140 in the left-to-right direction, and then move relative to the air duct housing 111 in the up-and-down direction so that the locking protrusion 130 is inserted into the second locking segment 142. For example, please refer to... Figures 2 to 4 Taking the air outlet panel 120 on the left side of the figure as an example, the air outlet panel 120 first moves from right to left so that the snap-fit ​​protrusion 130 can snap into the first snap-fit ​​hole section 141. At this time, the connecting plate 131 and the snap tongue 132 are both located in the first snap-fit ​​hole section 141, and the snap tongue 132 can abut against the inner side of the hole edge of the first snap-fit ​​hole section 141. Then the air outlet panel 120 moves from bottom to top so that the snap-fit ​​protrusion 130 can be inserted into the second snap-fit ​​hole section 142. At this time, the connecting plate 131 and the snap tongue 132 are both partially located in the second snap-fit ​​hole section 142, and one of the limiting plate surfaces 133 of the connecting plate 131 abuts against the limiting wall surface 143 near it, and the other limiting plate surface 133 abuts against the limiting wall surface 143 near it.

[0050] Of course, in other embodiments, the air outlet panel 120 may also be located on the upper side, front side or rear side of the housing 100. It is understood that the specific directions of the first direction, the second direction and the third direction can be adaptively changed in this case.

[0051] Please see Figures 4 to 9 Optionally, the air outlet panel 120 is provided with a first mounting hole 121, and the air duct housing 111 is provided with a corresponding second mounting hole 112. The axes of the first mounting hole 121 and the second mounting hole 112 both extend along a second direction, and the first mounting hole 121 and the second mounting hole 112 are connected by screws. That is, the locking direction of the screws (i.e., the second direction) is perpendicular to the installation direction of the air outlet panel 120 when it is inserted into the first locking hole segment 141 (i.e., the third direction). In this way, the connection strength between the air outlet panel 120 and the air duct housing 111 is further strengthened by screws, resulting in a simple structure and easy installation.

[0052] Please see Figures 7 to 9Optionally, the air outlet panel 120 has first mounting holes 121 at both ends in the second direction. For example, in an embodiment where the second direction is the height direction, the air outlet panel 120 has first mounting holes 121 at both the upper and lower ends. Screws for fixing the upper end of the air outlet panel 120 are tightened from top to bottom, and screws for fixing the lower end of the air outlet panel 120 are tightened from bottom to top. Thus, by tightening screws at both ends of the air outlet panel 120, the connection strength between the air outlet panel 120 and the duct housing 111 can be further improved, and installation is convenient, which is beneficial to improving assembly efficiency. Specifically, in this embodiment, the air outlet panel 120 has a first mounting hole 121 at both the upper and lower ends of its front edge, and a first mounting hole 121 at both the upper and lower ends of its rear edge, for a total of four first mounting holes 121 on one air outlet panel 120. Of course, in other embodiments, the first mounting hole 121 may only be provided at one end of the air outlet panel 120.

[0053] Please see Figure 3 and Figure 7 Optionally, the side edge of the air outlet panel 120 is provided with at least two snap-fit ​​holes 140 or at least two snap-fit ​​protrusions 130 along the second direction. This ensures that the side edge of the duct housing 111 can maintain a good connection with the air outlet panel 120 at different positions, avoiding gaps between the two. Of course, in other embodiments, only one snap-fit ​​hole 140 or snap-fit ​​protrusion 130 may be provided in the second direction.

[0054] Please see Figure 5 and Figure 8 Optionally, the snap-fit ​​protrusion 130 further includes at least two reinforcing ribs 134, which are located on the side of the connecting plate 131 away from the snap tongue 132 and in the second snap-fit ​​section 142. That is, the reinforcing ribs 134 are arranged to avoid the second snap-fit ​​section 142.

[0055] Please see Figure 2 and Figure 3Optionally, the housing 100 also includes an air inlet panel 150, which has an air inlet 101 and is detachably connected to the air duct component 110. After the air inlet panel 150 is removed, the snap-fit ​​protrusion 130 and the snap-fit ​​hole 140 are not exposed. For example, in an embodiment where the purification module 160 is located inside the air inlet panel 150, the user can remove the air inlet panel 150 to disassemble, clean, or replace the purification module 160. In this case, the user cannot see the snap-fit ​​protrusion 130 and the snap-fit ​​hole 140 after removing the air inlet panel 150. This can further improve the aesthetics of the product. It is understood that in the prior art, screws are usually used to fasten the snap-fit ​​protrusion 130. If the user removes the air inlet panel 150, these screws and screw holes will be exposed, making the equipment less aesthetically pleasing. If these screws and screw holes are covered with adhesive tape, it will increase assembly time. This embodiment eliminates the need for covering-up stickers, thus improving production efficiency.

[0056] The air inlet panel 150 can be detachably installed with the air duct component 110 by means of a snap-fit ​​structure and / or a magnetic structure and / or screw holes, and this application does not make specific limitations in this regard.

[0057] It is worth mentioning that in the embodiment where the first mounting hole 121 and the second mounting hole 112 are provided and secured by screws, optionally, after the air inlet panel 150 is removed, the first mounting hole 121, the second mounting hole 112, and the screws are not exposed, for example, they can be covered by the top cover 170 and the bottom cover 180. In this way, the aesthetics of the product can be further improved.

[0058] Please see Figure 2 , Figure 3 and Figure 10 Optionally, the air purifier also includes a purification module 160. The duct component 110 has a mounting groove 113 for receiving the purification module 160. A snap-fit ​​side plate 114 extends inward from the side edge of the duct component 110. The snap-fit ​​side plate 114 and the side wall of the mounting groove 113 are spaced apart to create a clearance space 115. The snap-fit ​​side plate 114 has a snap-fit ​​hole 140. A snap-fit ​​protrusion 130 is located on the inner side of the air outlet panel 120 and can extend into the clearance space 115. The air outlet panel 120 covers the snap-fit ​​side plate 114. Thus, by providing the clearance space 115, the snap-fit ​​protrusion 130 and the snap-fit ​​hole 140 can be easily snapped and fixed together. Furthermore, the air outlet panel 120 covers the snap-fit ​​protrusion 130 and the snap-fit ​​hole 140 to achieve an aesthetically pleasing design. The structure is simple and easy to implement.

[0059] Please see Figure 3Optionally, at least two air inlet panels 150 and purification modules 160 are provided. The at least two air inlet panels 150 are respectively located on opposite sides of the air duct component 110 and are connected to the two air inlet ends of the air duct 103. At least two purification modules 160 are respectively located in the mounting slots 113 of the two air inlet ends. Thus, having two purification modules 160 and two air inlets 101 can improve the purification capacity and airflow of the device, enhancing the user experience. The purification module 160 can be a HEPA filter or other structures; this application does not specifically limit its application. Of course, in other embodiments, only one air inlet panel 150 and one purification module 160 may be provided.

[0060] Please see Figure 3 Optionally, the second direction is the height direction (i.e., the vertical direction), and at least two air outlet panels 120 are provided. These at least two air outlet panels 120 are respectively located on opposite sides of the air duct component 110 and are connected to the two air outlet ends of the air duct 103 one-to-one. This increases the air outlet area and air volume, and improves the user experience. Of course, in other embodiments, only one air outlet panel 120 may be provided.

[0061] In this embodiment, there are two air outlet panels 120, two air inlet panels 150, and two purification modules 160. The two air outlet panels 120 are located on the left and right sides of the housing 100, and the air inlet panels 150 are located on the front and rear sides of the housing 100. That is, the equipment has the characteristics of dual-sided air inlet and dual-sided air outlet.

[0062] Please see Figure 3 Optionally, the air purifier also includes a centrifugal fan 200, which includes a centrifugal impeller with two sets of blades facing each other in the axial direction to form an air inlet side on both sides of the centrifugal impeller. Two air inlets 101 are provided, with one air inlet side corresponding to one air inlet 101. The two sets of blades are arranged in a symmetrical or asymmetrical structure. This results in a simple and easy-to-implement structure.

[0063] Please see Figure 3 Optionally, the housing 100 also includes a top cover 170 and a bottom cover 180. The top cover 170 is mounted on the top of the air duct component 110, and the bottom cover 180 is mounted on the bottom of the air duct component 110. This facilitates the manufacturing and assembly of the housing 100. Specifically, the top cover 170 can be installed with the air duct component 110 by providing a snap-fit ​​structure and / or a magnetic structure and / or screw holes; similarly, the bottom cover 180 can be installed with the air duct component 110 by providing a snap-fit ​​structure and / or a magnetic structure and / or screw holes. This application does not specifically limit this aspect.

[0064] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An air purifier, characterized in that, The unit includes a housing, which has an air inlet, an air outlet, and an air duct. The housing includes: A duct component, wherein the duct component is provided with a duct, the air inlet end of the duct is connected to the air inlet port, and the air outlet end of the duct is connected to the air outlet port; and An air outlet panel is provided with an air outlet. One of the air outlet panel and the air duct component is provided with a snap-fit ​​protrusion, and the other is provided with a snap-fit ​​hole. The snap-fit ​​protrusion can be snapped into the snap-fit ​​hole so that the air outlet panel is installed on the air duct component.

2. The air purifier as described in claim 1, characterized in that, The air duct component includes two air duct shells distributed and connected along a first direction, the air duct being formed between the two air duct shells, and the two side edges of the air outlet panel being connected to the two air duct shells respectively.

3. The air purifier as described in claim 2, characterized in that, The snap-fit ​​hole includes a first snap-fit ​​segment and a second snap-fit ​​segment distributed and connected along a second direction. The width of the first snap-fit ​​segment is greater than that of the second snap-fit ​​segment. After the snap-fit ​​protrusion snaps into the first snap-fit ​​segment along a third direction, the air outlet panel can be translated along the second direction so that the snap-fit ​​protrusion is at least partially inserted into the second snap-fit ​​segment and engages with the second snap-fit ​​segment at the upper limit in the first direction. The first direction, the second direction, and the third direction are arranged in pairs.

4. The air purifier as described in claim 3, characterized in that, The snap-fit ​​protrusion includes a connecting plate and a snap-fit ​​tongue disposed on the connecting plate. The connecting plate is elastically deformable so that the snap-fit ​​tongue snaps into the first snap-fit ​​hole segment. The connecting plate is provided with two limiting plate surfaces opposite to each other in the first direction. The second snap-fit ​​hole segment is provided with two limiting wall surfaces opposite to each other in the first direction. The limiting plate surfaces abut against the limiting wall surfaces to achieve the limiting engagement between the snap-fit ​​protrusion and the second snap-fit ​​hole segment.

5. The air purifier as described in claim 3, characterized in that, The air outlet panel is provided with a first mounting hole, and the air duct shell is provided with a corresponding second mounting hole. The axis of the first mounting hole and the second mounting hole both extend along the second direction, and the first mounting hole and the second mounting hole are connected by screws.

6. The air purifier as described in claim 5, characterized in that, The air outlet panel is provided with the first mounting hole at both ends in the second direction; And / or, the side edge of the air outlet panel is provided with at least two of the said snap-fit ​​holes or at least two of the said snap-fit ​​protrusions along the second direction.

7. The air purifier as described in claim 1, characterized in that, The housing also includes an air inlet panel, which has the air inlet and is detachably connected to the air duct component. After the air inlet panel is removed, the snap-fit ​​protrusion and the snap-fit ​​hole are not exposed.

8. The air purifier as described in claim 7, characterized in that, The air purifier also includes a purification module. The air duct component is provided with a mounting groove for receiving the purification module. The side edge of the air duct component extends inward to engage with a side plate. The side plate and the mounting groove side wall are spaced apart to create a clearance space. The side plate is provided with a engagement hole. The engagement protrusion is provided on the inner side of the air outlet panel and can extend into the clearance space. The air outlet panel covers the side plate.

9. The air purifier as described in claim 8, characterized in that, Both the air inlet panel and the purification module are provided in at least two. The at least two air inlet panels are respectively located on opposite sides of the air duct component and are connected to the two air inlet ends of the air duct in a one-to-one correspondence. The at least two purification modules are respectively located in the mounting slots of the two air inlet ends.

10. The air purifier as described in claim 1, characterized in that, The air outlet panel is provided with at least two, and the at least two air outlet panels are respectively arranged on opposite sides of the air duct component, and are connected to the two air outlet ends of the air duct one by one; And / or, the air purifier further includes a centrifugal fan, the centrifugal fan includes a centrifugal impeller, the centrifugal impeller has two sets of blades that are axially opposite each other to form an air inlet side on both sides of the centrifugal impeller, the air inlet is provided with two, one air inlet side is connected to one air inlet, and the two sets of blades are arranged in a symmetrical or asymmetrical structure. And / or, the housing further includes a top cover and a bottom cover, the top cover being mounted on the top of the air duct component and the bottom cover being mounted on the bottom of the air duct component.

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