Air purifier

Abstract

The air purifier comprises a shell and a filter screen assembly, an air inlet is formed in the shell, the filter screen assembly is detachably installed on the shell, the filter screen assembly comprises a filter screen frame and a filter element installed on the filter screen frame, the filter element and the air inlet are oppositely arranged, and the filter screen frame is detachably installed on the shell. One of the filter screen frame and the shell is provided with a plurality of limiting bulges, the other one of the filter screen frame and the shell is provided with a plurality of limiting grooves, the plurality of limiting bulges continuously form a wave shape, one limiting bulge is matched with one limiting groove in a limiting manner, and the filter screen frame is connected to the shell through the matching of the limiting bulges and the limiting grooves. According to the technical scheme, the possibility that the filter element is loosened is reduced, and the mounting strength of the filter element is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air processing devices, in particular to an air purifier. Background Art

[0002] A filter element is installed in the air purifier, which filters the airflow entering the air inlet and then discharges the filtered airflow from the air outlet. Long-term use of the filter element will reduce its filtering effect, so the filter element needs to be cleaned or replaced. Therefore, the filter element is generally detachably installed on the housing of the air purifier. In the prior art, the filter element is generally only installed on the housing through a snap-on structure, a screw connection, etc., but there must be a certain installation gap between the filter element and the housing. At the same time, when the filter element is disturbed by the airflow entering from the air inlet, it will cause the filter element to shake, which will cause the filter element to loosen and shift over time. Utility Model Content

[0003] The main purpose of the utility model is to provide an air purifier, aiming to reduce the possibility of filter element loosening and improve the installation strength of the filter element.

[0004] To achieve the above-mentioned purpose, the air purifier proposed by the utility model comprises:

[0005] a housing, wherein an air inlet is provided on the housing; and

[0006] A filter assembly, wherein the filter assembly can be detachably installed on the shell, and the filter assembly includes a filter frame and a filter element installed on the filter frame, the filter element is arranged opposite to the air inlet, one of the filter frame and the shell is provided with a plurality of limiting protrusions, and the other of the two is provided with a plurality of limiting grooves, the plurality of limiting protrusions are continuously formed into a wave shape, a limiting protrusion is limitedly matched with a limiting groove, and the filter frame is connected to the shell through the cooperation of the limiting protrusion and the limiting groove.

[0007] Optionally, the plurality of limiting protrusions are in an arc-shaped wave shape.

[0008] Optionally, the plurality of limiting protrusions include at least one first limiting protrusion and at least one second limiting protrusion, the first limiting protrusions and the second limiting protrusions are alternately arranged one by one, and the height of the first limiting protrusion is higher than the height of the second limiting protrusion.

[0009] Optionally, the plurality of limiting protrusions are in a sawtooth wave shape; or the plurality of limiting protrusions are in a trapezoidal wave shape.

[0010] Optionally, the plurality of limiting protrusions are all arranged in a hemispherical shape, and two adjacent limiting protrusions are arranged at intervals.

[0011] Optionally, the filter element is cylindrical, and the plurality of limiting protrusions are all arranged on one end of the filter element axis.

[0012] Optionally, a guide groove is provided on the outer peripheral surface of the filter element, and a guide protrusion is provided on the shell, and the filter element is limited in the shell by the cooperation of the guide protrusion and the guide groove.

[0013] Optionally, the filter frame includes a first filter frame and a second filter frame, the first filter frame and the second filter frame are respectively connected to two ends of the filter element axis, and the plurality of limiting protrusions are all arranged at one end of the first filter frame away from the second filter frame.

[0014] Optionally, the guide groove extends along the axial direction of the filter element and passes through the first filter frame, and when the limiting protrusion abuts against the corresponding limiting groove, one end of the second filter frame facing the first filter frame abuts against the guide protrusion.

[0015] Optionally, the filter element is arranged in a square shape, and the plurality of limiting protrusions are arranged on one side of the width direction of the filter element; or the plurality of limiting protrusions are arranged on one side of the length direction of the filter element.

[0016] Optionally, the air purifier further includes a filter cover, a filter cavity is provided in the shell, the filter cavity is communicated with the air inlet, and the filter cover is detachably mounted on the shell and located at the opening of the filter cavity.

[0017] Optionally, the air purifier also includes a first sealing cotton and a second sealing cotton, the first sealing cotton is clamped between the limiting protrusion and the groove wall of the limiting groove, and the second sealing cotton is clamped between the filter frame and the shell; and / or the second sealing cotton is clamped between the filter cover and the filter frame.

[0018] The air purifier in the technical solution of the utility model includes a housing and a filter assembly, the housing is provided with an air inlet, the filter assembly can be detachably mounted on the housing, the filter assembly includes a filter frame and a filter element mounted on the filter frame, the filter element is arranged opposite to the air inlet, one of the filter frame and the housing is provided with a plurality of limiting protrusions, the other of the two is provided with a plurality of limiting grooves, the plurality of limiting protrusions continuously form a wave shape, a limiting protrusion and a limiting groove are limitedly matched, and the filter frame is connected to the housing through the cooperation of the limiting protrusion and the limiting groove. Through the cooperation of the plurality of limiting protrusions and the plurality of limiting grooves, the filter element assembly can be detachably mounted on the housing, and the plurality of limiting protrusions and the plurality of limiting grooves are limitedly matched, thereby reducing the possibility of the filter element and the filter frame being loosened under airflow disturbance, thereby improving the installation strength of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the structure of the utility model air purifier in a cylindrical shape;

[0021] Figure 2 for Figure 1 Schematic diagram of some structures in ;

[0022] Figure 3 This is a schematic diagram of the square structure of the air purifier of the utility model;

[0023] Figure 4 for Figure 3 Schematic diagram of some structures in ;

[0024] Figure 5 for Figure 1 A schematic diagram of the structure when the middle limit protrusion is in an arc-shaped wave shape;

[0025] Figure 6 for Figure 5 Exploded diagram of

[0026] Figure 7 for Figure 1 Schematic diagram of the structure when the height of the middle limit protrusion is different;

[0027] Figure 8 for Figure 2 A schematic structural diagram of an embodiment in which the middle limit protrusion is in an arc-shaped wave shape;

[0028] Fig. 9 for Figure 8 Exploded diagram of

[0029] Fig.10 for Figure 2 A schematic structural diagram of an embodiment when the middle limit protrusion has different heights;

[0030] Fig.11 for Figure 2 A schematic structural diagram of another embodiment in which the middle limit protrusion is in an arc-shaped wave shape;

[0031] Fig.12 for Figure 2 A schematic structural diagram of another embodiment in which the middle limit protrusion has a different height;

[0032] Fig.13 for Figure 1A schematic diagram of the structure when the middle limit protrusion is in a sawtooth wave shape;

[0033] Fig.14 for Figure 2 A schematic structural diagram of an embodiment in which the middle limiting protrusion is a sawtooth-shaped wave;

[0034] Fig.15 for Figure 2 A schematic structural diagram of another embodiment in which the middle limiting protrusion is sawtooth-shaped and wavy;

[0035] Fig.16 for Figure 1 A schematic diagram of the structure when the middle limit protrusion is in a trapezoidal wave shape;

[0036] Fig.17 for Figure 2 A schematic structural diagram of an embodiment in which the middle limiting protrusion is a trapezoidal wave shape;

[0037] Fig.18 for Figure 2 A schematic structural diagram of another embodiment in which the middle limiting protrusion is in a trapezoidal wave shape;

[0038] Fig.19 for Figure 1 A schematic diagram of the structure when the middle limit protrusion is hemispherical;

[0039] Fig. 20 for Figure 2 A schematic structural diagram of an embodiment in which the middle limiting protrusion is hemispherical;

[0040] Fig.21 for Figure 2 A schematic structural diagram of another embodiment in which the middle limiting protrusion is hemispherical.

[0041] Description of Figure Numbers:

[0042] Label name Label name 10 case 22 Limiting protrusion 11 Air Inlet 221 The first limit protrusion 12 Limit slot 222 The second limiting protrusion 13 Filter chamber 23 Filter Elements 2 Filter assembly 231 Guide groove 21 Filter frame 24 First seal cotton 211 First filter frame 25 Second sealing cotton 212 Second filter frame 26 Filter cover

[0043] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical solution that satisfies both A and B; in addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0048] Reference Figures 1 to 6 The utility model provides an air purifier, comprising:

[0049] A housing 10, wherein the housing 10 is provided with an air inlet 11; and

[0050] A filter assembly 2, wherein the filter assembly 2 can be detachably installed on the shell 10, and the filter assembly 2 includes a filter frame 21 and a filter element 23 installed on the filter frame 21, and the filter element 23 is arranged opposite to the air inlet 11. A plurality of limiting protrusions 22 are provided on one of the filter frame 21 and the shell 10, and a plurality of limiting grooves 12 are provided on the other of the two. The plurality of limiting protrusions 22 are continuously formed into a wave shape, and a limiting protrusion 22 is limitedly matched with a limiting groove 12, and the filter frame 21 is connected to the shell 10 through the cooperation of the limiting protrusion 22 and the limiting groove 12.

[0051] The air purifier in the technical solution of the utility model includes a shell 10 and a filter assembly 2. The shell 10 is provided with an air inlet 11. The filter assembly 2 can be detachably installed on the shell 10. The filter assembly 2 includes a filter frame 21 and a filter element 23 installed on the filter frame 21. The filter element 23 is arranged opposite to the air inlet 11. One of the filter frame 21 and the shell 10 is provided with a plurality of limiting protrusions 22, and the other of the two is provided with a plurality of limiting grooves 12. The plurality of limiting protrusions 22 are continuously formed into a wave shape. A limiting protrusion 22 is limitedly matched with a limiting groove 12. The filter frame 21 is connected to the shell 10 through the cooperation of the limiting protrusion 22 and the limiting groove 12. By cooperating with multiple limiting protrusions 22 and multiple limiting grooves 12, the filter element 23 assembly can be detachably installed on the shell 10, and at the same time, multiple limiting protrusions 22 and multiple limiting grooves 12 are used for limiting cooperation, thereby reducing the possibility of shaking of the filter element 23 and the filter frame 21 under airflow disturbance, thereby reducing the noise generated by the air purifier, and improving the installation strength of the filter element 23.

[0052] Reference Figures 5 to 12 The plurality of limit protrusions 22 are in an arc-shaped wave shape. The plurality of arc-shaped limit protrusions 22 reduce the possibility of the filter element 23 and the filter frame 21 shaking under airflow disturbance, thereby reducing the noise generated by the air purifier, thereby increasing the service life of the filter element 23 and the user experience.

[0053] Reference Figure 7 , Fig.10 as well as Fig.12 , the plurality of limiting protrusions 22 include at least one first limiting protrusion 221 and at least one second limiting protrusion 222, the first limiting protrusion 221 and the second limiting protrusion 222 are arranged alternately one by one, and the height of the first limiting protrusion 221 is higher than the height of the second limiting protrusion 222. It should be noted that at this time, the limiting groove 12 also includes a first limiting groove 12 and a second limiting groove 12, the first limiting groove 12 and the first limiting protrusion 221 are adapted, and the second limiting groove 12 and the second limiting protrusion 222 are adapted. By setting the first limiting protrusion 221 and the second limiting protrusion 222 to different heights, the possibility of the filter element 23 and the filter frame 21 shaking under airflow disturbance is further reduced, thereby further reducing the noise generated by the air purifier, thereby improving the service life of the filter element 23 and the user's experience. Of course, in other embodiments, at least two limiting protrusions 22 among the plurality of limiting protrusions 22 may have different heights.

[0054] Reference Figures 13 to 15 , the plurality of limiting protrusions 22 are in a sawtooth wave shape; refer to Figures 16 to 18, or multiple limiting protrusions 22 are in a trapezoidal wave shape. It can be understood that the zigzag or trapezoidal wave-shaped limiting protrusions 22 reduce the possibility of the filter element 23 and the filter frame 21 shaking under airflow disturbance, thereby further reducing the noise generated by the air purifier, thereby improving the service life of the filter element 23 and the user experience. Of course, in other embodiments, multiple limiting protrusions 22 can also be partially zigzag and partially trapezoidal.

[0055] Reference Figures 19 to 21 , the plurality of limiting protrusions 22 are all hemispherical, and two adjacent limiting protrusions 22 are arranged at intervals. Through the plurality of hemispherical limiting protrusions 22, the possibility of the filter element 23 and the filter frame 21 shaking under airflow disturbance is reduced, thereby further reducing the noise generated by the air purifier, thereby improving the service life of the filter element 23 and the user experience. Among them, the hemispherical limiting protrusions 22 can be arranged at intervals or connected to each other.

[0056] Reference Figures 5 to 7 , Fig.13 , Fig.16 as well as Fig.19 The filter element 23 is cylindrical, and the plurality of limiting protrusions 22 are all arranged around one end of the axis of the filter element 23. By arranging a plurality of limiting protrusions 22 around one end of the axis of the filter element 23, the filter element 23 is fixed in an all-round manner, thereby reducing the possibility of the filter element 23 and the filter frame 21 shaking under airflow disturbance, thereby further reducing the noise generated by the air purifier.

[0057] Furthermore, a guide groove 231 is provided on the outer circumference of the filter element 23, and a guide protrusion is provided on the housing 10, and the filter element 23 is limited in the housing 10 by the cooperation between the guide protrusion and the guide groove 231. By providing the guide groove 231 and the guide protrusion, on the one hand, the limiting protrusion 22 and the corresponding limiting groove 12 can be accurately matched, thereby reducing the time for calibrating the limiting protrusion 22 and the limiting groove 12, thereby improving the installation time and the work efficiency.

[0058] Specifically, the filter frame 21 includes a first filter frame 211 and a second filter frame 212, the first filter frame 211 and the second filter frame 212 are respectively connected to the two ends of the axis of the filter element 23, and the plurality of limit protrusions 22 are all arranged at one end of the first filter frame 211 away from the second filter frame 212. The filter element 23 is a material for filtering air, and its material can be activated carbon, PP cotton, fiber, RO membrane, etc. Therefore, in order to reduce the collision and damage of the filter element 23, the first filter frame 211 and the second filter frame 212 are arranged to reduce the possibility of collision of the filter element 23, thereby increasing the service life of the filter element 23; at the same time, the first filter frame 211 and the second filter frame 212 are used to achieve connection with other objects.

[0059] Furthermore, the guide groove 231 extends along the axial direction of the filter element 23 and penetrates the first filter screen frame 211. When the limiting protrusion 22 abuts against the corresponding limiting groove 12, the end of the second filter screen frame 212 facing the first filter screen frame 211 abuts against the guide protrusion. Thus, the guide groove 231 plays a guiding role and can also play a limiting role through the second filter screen frame 212, so that the filter element 23 can be further accurately installed in the housing 10.

[0060] Reference Figure 8 , Figures 10 to 12 , Fig.14 , Fig.15 , Fig.17 , Fig.18 , Fig. 20 as well as Fig.21 , the filter element 23 is arranged in a square shape, and the plurality of the limiting protrusions 22 are arranged on one side of the width direction of the filter element 23; or the plurality of the limiting protrusions 22 are arranged on one side of the length direction of the filter element 23. Of course, in other embodiments, the filter element 23 can also be a triangle or other irregular shapes, etc., which can be set according to the shape of the air purifier or the position of the air inlet.

[0061] Optionally, the air purifier further includes a filter cover 26, a filter chamber 13 is provided in the housing 10, the filter chamber 13 is communicated with the air inlet 11, and the filter cover 26 is detachably mounted on the housing 10 and is located at the opening of the filter chamber 13. The filter assembly 2 is detachably mounted in the filter chamber 13 of the housing 10 through the filter cover 26. When the filter element 23 needs to be replaced or removed, it is only necessary to remove the filter cover 26. When the filter cover 26 is installed at the opening of the filter chamber 13 of the housing 10, the filter assembly 2 is limitedly mounted in the filter chamber 13 of the housing 10 through the filter cover 26. Furthermore, the detachable connection between the filter cover 26 and the housing 10 can be a screw locking method, or a snap-on connection with a snap-on structure.

[0062] Furthermore, the air purifier further includes a first sealing cotton 24 and a second sealing cotton 25, wherein the first sealing cotton 24 is sandwiched between the limiting protrusion 22 and the groove wall of the limiting groove 12, and the second sealing cotton 25 is sandwiched between the filter frame 21 and the housing 10; and / or, the second sealing cotton 25 is sandwiched between the filter cover 26 and the filter frame 21. Through the first sealing cotton 24 and the second sealing cotton 25, an interference fit is achieved between the filter frame 21 and the housing 10, and / or between the filter frame 21 and the filter cover 26, which reduces the gap between them on the one hand, and also reduces the vibration through the first sealing cotton 24 and the second sealing cotton 25, thereby reducing the noise generated during the operation of the air purifier. Among them, the first sealing cotton 24 is adapted to the shape of the plurality of limiting protrusions 22.

[0063] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An air purifier, characterized in that: include: A housing (10), wherein the housing (10) is provided with an air inlet (11); and A filter assembly (2), wherein the filter assembly (2) can be detachably mounted on the housing (10), the filter assembly (2) comprises a filter frame (21) and a filter element (23) mounted on the filter frame (21), the filter element (23) being arranged opposite to the air inlet (11), a plurality of limiting protrusions (22) being provided on one of the filter frame (21) and the housing (10), a plurality of limiting grooves (12) being provided on the other of the two, the plurality of limiting protrusions (22) being continuously formed into a wave shape, a limiting protrusion (22) being limitedly matched with a limiting groove (12), and the filter frame (21) being connected to the housing (10) through the matching of the limiting protrusion (22) and the limiting groove (12).

2. The air purifier according to claim 1, characterized in that: The plurality of limiting protrusions (22) are in an arc-shaped wave shape.

3. The air purifier according to claim 2, characterized in that: The plurality of limiting protrusions (22) include at least one first limiting protrusion (221) (22) and at least one second limiting protrusion (222) (22), wherein the first limiting protrusions (221) (22) and the second limiting protrusions (222) (22) are alternately arranged one by one, and the height of the first limiting protrusion (221) (22) is higher than the height of the second limiting protrusion (222) (22).

4. The air purifier according to claim 1, characterized in that: The plurality of limiting protrusions (22) are in a sawtooth wave shape; or The plurality of limiting protrusions (22) are in a trapezoidal wave shape.

5. The air purifier according to claim 1, characterized in that: The plurality of limiting protrusions (22) are all arranged in a hemispherical shape, and two adjacent limiting protrusions (22) are arranged at intervals.

6. The air purifier according to any one of claims 1 to 5, characterized in that: The filter element (23) is cylindrical, and the plurality of limiting protrusions (22) are all arranged in a ring at one end on the axis of the filter element (23).

7. The air purifier according to claim 6, characterized in that: The outer peripheral surface of the filter element (23) is provided with a guide groove (231), the housing (10) is provided with a guide protrusion, and the filter element (23) is limitedly positioned in the housing (10) by the cooperation between the guide protrusion and the guide groove (231).

8. The air purifier according to claim 7, characterized in that: The filter frame (21) comprises a first filter frame (211) (21) and a second filter frame (212) (21); the first filter frame (211) (21) and the second filter frame (212) (21) are respectively connected to two ends of the axis of the filter element (23); and the plurality of limiting protrusions (22) are all arranged at one end of the first filter frame (211) (21) away from the second filter frame (212) (21).

9. The air purifier according to claim 8, characterized in that: The guide groove (231) extends along the axial direction of the filter element (23) and passes through the first filter frame (211) (21); when the limiting protrusion (22) abuts against the corresponding limiting groove (12), one end of the second filter frame (212) (21) facing the first filter frame (211) (21) abuts against the guide protrusion.

10. The air purifier according to any one of claims 1 to 5, characterized in that: The filter element (23) is arranged in a square shape, and the plurality of limiting protrusions (22) are arranged on one side of the filter element (23) in the width direction; or The plurality of limiting protrusions (22) are all arranged on one side of the filter element (23) in the length direction.

11. The air purifier according to claim 1, characterized in that: The air purifier further comprises a filter cover (26); a filter chamber (13) is provided in the housing (10); the filter chamber (13) is communicated with the air inlet (11); the filter cover (26) is detachably mounted on the housing (10) and is located at the opening of the filter chamber (13).

12. The air purifier according to claim 11, characterized in that The air purifier further comprises a first sealing cotton (24) and a second sealing cotton (25), wherein the first sealing cotton (24) is clamped between the limiting protrusion (22) and the groove wall of the limiting groove (12), and the second sealing cotton (25) is clamped between the filter frame (21) and the shell (10); and / or the second sealing cotton (25) is clamped between the filter cover (26) and the filter frame (21).

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