Air purifier

Abstract

The invention belongs to the field of air purification equipment, and particularly relates to an air purifier which comprises a lower shell, an upper shell, a lower shell, an upper shell, a lower shell, a first air inlet and a second air inlet, an air inlet channel is jointly defined by the support, the inner surface of the filter element and the bottom of the lower shell, and a communicating hole is formed in the support; the upper shell is mounted above the lower shell, and an air outlet hole is formed in the top of the upper shell; the wind wheel is rotationally arranged in the upper shell, the wind wheel and the air inlet channel are coaxially arranged, and an air supply channel is jointly defined by the upper shell, the first flow guide wall and the support; when the wind wheel rotates, air can enter the lower shell through the air inlet hole, then is filtered by the filter element and enters the air inlet channel, and the air in the air inlet channel can be driven by the wind wheel to enter the air supply channel through the communicating hole and is exhausted through the air outlet hole. According to the air purifier structure, the number of parts can be reduced, the production cost is saved, the production efficiency can be improved, and the size is reduced.

Description

Technical Field

[0001] The invention belongs to the field of air purification equipment, and in particular relates to an air purifier. Background Art

[0002] The air that people breathe sometimes contains pollutants such as PM2.5, dust, pollen, formaldehyde, bacteria, allergens, etc. Purifying the air with an air purifier can improve the air quality and reduce the inhalation of the above pollutants. Specifically, an air purifier refers to an air purification device that can absorb, decompose or transform various air pollutants.

[0003] In existing air purifiers, the flow of air inside the purifier needs to be guided by setting a guide member to guide the flow direction of the airflow. For example, in the Chinese utility model patent with publication number CN219693539U, a guide seat for guiding the airflow is provided inside the purifier, and the upwardly extending air supply channel formed by the guide seat allows the airflow to flow upward. However, the existing air purifier has many parts and the installation efficiency is low. In addition, the drive motors in the existing air purifiers are all installed on the wind wheel to drive the wind wheel to rotate, so the motor occupies a large space, which will cause the volume of the air purifier to increase. Summary of the invention

[0004] The purpose of the present invention is to provide an air purifier, aiming to solve the technical problems in the prior art that there are many parts, the installation efficiency is low, and the motor occupies a large space.

[0005] To achieve the above-mentioned purpose, an air purifier provided in an embodiment of the present invention comprises: a lower shell, the surface of which is provided with an air inlet hole, an annular filter element extending in a vertical direction is installed inside, and the upper part of the lower shell is provided with a first annular guide wall extending inward; a bracket, located at the upper end of the filter element, the bracket, the inner surface of the filter element and the bottom of the lower shell together enclose an air inlet channel, and the bracket is provided with a connecting hole; a motor bracket, a drive motor is provided on the motor bracket, a plurality of through holes are opened on the motor bracket around the periphery of the drive motor, the middle part of the motor bracket is recessed downward to form a mounting position, and the drive motor is placed at the mounting position; an upper shell, mounted on the lower shell At the top, an air outlet is provided on the top of the upper shell; a wind wheel is rotatably arranged inside the upper shell, the wind wheel is coaxially arranged with the air inlet channel, the upper shell, the first guide wall and the bracket together enclose an air supply channel, the driving motor is used to drive the wind wheel to rotate, the air inlet channel is connected with the air supply channel through the connecting hole, the air supply channel is connected with the air outlet, both ends of the through hole are connected to the air supply channel, when the wind wheel rotates, the air can enter the lower shell from the air inlet hole, then be filtered by the filter element and enter the air inlet channel, the air in the air inlet channel can enter the air supply channel through the connecting hole under the drive of the wind wheel and be discharged from the air outlet.

[0006] Optionally, a second guide wall is provided at the bottom of the wind wheel, the second guide wall is annular and is arranged around the circumference of the wind wheel, and the second guide wall gradually tilts upward from its inner circle to its outer circle.

[0007] Optionally, the second guide wall is an upwardly convex curved surface.

[0008] Optionally, the first guide wall extends toward the center direction of the lower shell and gradually tilts downward, and the first guide wall and the second guide wall have the same tilt direction and the same curvature.

[0009] Optionally, the curvature of the first guide wall is between greater than or equal to 30 degrees and less than or equal to 45 degrees.

[0010] Optionally, a third guide wall is provided on the top of the wind wheel, and the third guide wall is gradually inclined upward from the center of the wind wheel, and a plurality of blades are provided between the third guide wall and the second guide wall.

[0011] Optionally, the bottom surface of the first guide wall is fixedly connected to the bracket via a fastener, and the bottom end of the first guide wall abuts against the upper surface of the bracket.

[0012] Optionally, a stop rib extends upward from the upper surface of the bracket, and the outer diameter of the stop rib is smaller than the inner diameter of the first guide wall.

[0013] Optionally, the first guide wall and the lower shell are formed integrally.

[0014] Optionally, an annular groove is formed on the upper surface of the lower shell, and an annular protrusion is provided on the lower surface of the upper shell. The annular protrusion can be inserted into the annular groove and connected to each other through fasteners.

[0015] Compared with the prior art, one or more of the above technical solutions in an air purifier provided by an embodiment of the present invention has at least one of the following technical effects: when the wind wheel rotates, the air can enter the lower shell through the air inlet hole and then be filtered by the filter element and enter the air inlet channel. The air in the air inlet channel can enter the air supply channel through the connecting hole under the drive of the wind wheel and be discharged from the air outlet. Specifically, since the shell, the first guide wall and the bracket in the present invention enclose the air supply channel, the air purifier in the present invention does not need to additionally set a guide seat in the shell like the structure in the prior art. In addition, by providing a motor bracket with a recessed mounting position, the volume of the air purifier can be reduced. Therefore, the air purifier structure in the present invention can reduce the number of parts, save production costs, and can improve production efficiency and reduce volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the structure of the air purifier in the present invention;

[0018] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the lower shell in the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the bracket in the present invention;

[0021] Figure 5 It is a structural schematic diagram of the motor bracket in the present invention;

[0022] Figure 6 It is a schematic diagram of the structure of the wind wheel in the present invention.

[0023] Among them, the reference numerals in the figure are:

[0024] The lower shell 100, the air inlet 110, the first guide wall 120, and the annular groove 130;

[0025] Filter element 200;

[0026] Bracket 300, communication hole 310, stop rib 320;

[0027] Upper housing 400, air outlet 410, annular protrusion 420;

[0028] The wind wheel 500, the second guide wall 510, the third guide wall 520, and the blades 530;

[0029] Air inlet channel 600;

[0030] Air supply channel 700;

[0031] Motor bracket 800 , driving motor 810 , through hole 820 , and mounting position 830 . DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0033] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0036] like Figures 1 to 6 As shown, the present invention provides an air purifier, including a lower shell 100, a bracket 300, an upper shell 400 and a wind wheel 500.

[0037] Among them, an air inlet hole 110 is opened on the surface of the lower shell 100, and an annular filter element 200 extending in the vertical direction is installed inside. A first annular guide wall 120 is extended inward from the upper part of the lower shell 100. The bracket 300 is located at the upper end of the filter element 200. The bracket 300, the inner surface of the filter element 200 and the bottom of the lower shell 100 together enclose an air inlet channel 600. The bracket 300 is provided with a connecting hole 820310. The upper shell 400 is installed above the lower shell 100. The top of the upper shell 400 is provided with an air outlet hole 410. The wind wheel 500 is rotatably arranged inside the upper shell 400. The wind wheel 500 is coaxially arranged with the air inlet channel 600. The upper shell 400, the first guide wall 120 and the bracket 300 together enclose an air supply channel 700. The air inlet channel 600 is connected with the air supply channel 700 through the connecting hole 310, and the air supply channel 700 is connected with the air outlet hole 410.

[0038] In addition, a motor bracket 800 is further provided in the upper shell 400 of the present invention, and a driving motor 810 is provided on the motor bracket 800. The driving motor 810 is used to drive the wind wheel 500 to rotate. A plurality of through holes 820 are opened on the motor bracket 800 around the periphery of the driving motor 810. Both ends of the through holes 820 are connected to the air supply channel 700. The middle part of the motor bracket 800 is recessed downward to form a mounting position 830. The driving motor 810 is placed at the mounting position 830. The recessed mounting position 830 can reduce the overall height of the air purifier and save space.

[0039] It is understandable that when the wind wheel 500 rotates, the air can enter the lower shell 100 through the air inlet hole 110, and then be filtered by the filter element 200 and enter the air inlet channel 600. The air in the air inlet channel 600 can enter the air supply channel 700 through the connecting hole 310 under the drive of the wind wheel 500 and be discharged from the air outlet 410. Specifically, since the upper shell 400, the first guide wall 120 and the bracket 300 in the present invention enclose the air supply channel 700, the air purifier in the present invention does not need to additionally set the guide seat part in the shell like the structure in the prior art. In addition, by setting the motor bracket 800 with a recessed mounting position 830, the volume of the air purifier can be reduced. Therefore, the air purifier structure in the present invention can reduce the number of parts, save production costs, and improve production efficiency and reduce volume.

[0040] like Figure 2 and Figure 6 As shown, in one embodiment of the present invention, a second guide wall 510 is arranged at the bottom of the wind wheel 500. The second guide wall 510 is annular and arranged around the circumference of the wind wheel 500. The second guide wall 510 gradually tilts upward from its inner circle to its outer circle.

[0041] like Figure 2 and Figure 6 As shown, in one embodiment of the present invention, the second guide wall 510 is an inwardly convex arc surface to reduce the corner and maintain a smooth transition, so that the airflow will not be blocked when flowing through the second guide wall 510, thereby reducing noise.

[0042] like Figure 2 and Figure 3 As shown, in one embodiment of the present invention, the first guide wall 120 extends toward the center direction of the lower shell 100 and gradually tilts downward, that is, the first guide wall 120 is gradually tilted downward from one end connected to the lower shell 100 to the other end, and the structure of the first guide wall 120 can cooperate with the bracket 300 structure and the upper shell 400 to form an air supply channel 700, saving the cost of setting up an additional air duct. In addition, the first guide wall 120 is designed to be a structural form with the same inclination direction and curvature as the second guide wall 510, which can avoid the second guide wall 510 and form an equidistant flow channel between the first guide wall 120 and the second guide wall 510, preventing turbulence and noise when the airflow passes between the first guide wall 120 and the second guide wall 510.

[0043] In one embodiment of the present invention, the curvature of the first guide wall 120 is between greater than or equal to 30 degrees and less than or equal to 45 degrees. When the curvature of the first guide wall 120 is too small, the airflow cannot be smoothly guided to flow obliquely upward. When the curvature of the first guide wall 120 is too large, it is not conducive to demolding during the injection molding process.

[0044] like Figure 2 and Figure 6 As shown, in one embodiment of the present invention, a third guide wall 520 is provided on the top of the wind wheel 500, and the third guide wall 520 gradually tilts upward from the center of the wind wheel 500, and a plurality of blades 530 are provided between the third guide wall 520 and the second guide wall 510. It can be understood that the third guide wall 520 and the second guide wall 510 can jointly form an oblique upward guide path to provide a smooth guide for the flow of airflow and prevent the airflow from generating turbulence inside the wind wheel 500. Further, a plurality of blades 530 can be evenly distributed in an array around the axis of the wind wheel 500. In addition, the recessed mounting position 830 on the motor bracket 800 is in a downwardly protruding structural form, which can fit with the third guide wall 520 tilted upward around the circumference.

[0045] like Figure 2 As shown, in one embodiment of the present invention, the bottom surface of the first guide wall 120 is fixedly connected to the bracket 300 by fasteners. After the bracket 300 is connected to the first guide wall 120, the lower housing 100 is installed with the bracket 300 as a whole. Further, the lower housing 100 may include a housing wall and a bottom cover. The first guide wall 120 may be arranged on the housing wall. After the bracket 300 is connected to the first guide wall 120, other components such as the filter element 200 may be further installed in the housing wall. Finally, the bottom cover is connected to the bottom surface of the housing wall and blocks the bottom surface of the housing wall. In addition, the bottom end of the first guide wall 120 abuts against the upper surface of the bracket 300, so that the airflow flowing into the air supply channel 700 will not flow back into the air inlet channel 600.

[0046] like Figure 4 As shown, in one embodiment of the present invention, a stop rib 320 extends upward from the upper surface of the bracket 300, and the stop rib 320 is annular and is arranged around the axis of the bracket 300. The outer diameter of the stop rib 320 is smaller than the inner diameter of the first guide wall 120. During the installation of the bracket 300 and the lower shell 100, the stop rib 320 can extend into the inner circle of the first guide wall 120. The first guide wall 120 can provide an assembly guide for the installation of the bracket 300, thereby further improving the assembly efficiency.

[0047] In one embodiment of the present invention, the first guide wall 120 can be integrally formed with the lower shell 100, that is, the two are an integrated structure. Specifically, the first guide wall 120 and the lower shell 100 can both be made of plastic and can be integrally injection molded in the same mold.

[0048] like Figure 2 and Figure 3As shown, in one embodiment of the present invention, an annular groove 130 is provided on the upper surface of the lower shell 100, and an annular protrusion 420 is provided on the lower surface of the upper shell 400. The annular protrusion 420 can be inserted into the annular groove 130 to realize the mutual alignment of the lower shell 100 and the upper shell 400, and then the two can be connected to each other by fasteners such as bolts.

[0049] It should be noted that Figure 2 The direction of the dotted arrow in the figure is a rough indication of the direction of the external air after entering the purifier.

[0050] The above content is a further detailed description of the present invention in combination with specific preferred implementation methods, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, without departing from the concept of the present invention, its architecture can be flexible and can derive a series of products. Just making a few simple deductions or substitutions should be regarded as belonging to the scope of patent protection of the present invention determined by the submitted claims.

Claims

1. An air purifier, characterized in that: include: The lower shell has an air inlet hole on its surface and an annular filter element extending in the vertical direction installed inside. The upper part of the lower shell is provided with an annular first flow guide wall extending inwardly. A bracket, located at the upper end of the filter element, the bracket, the inner surface of the filter element and the bottom of the lower shell together enclose an air inlet channel, and the bracket is provided with a connecting hole; A motor bracket, wherein a driving motor is arranged on the motor bracket, and a plurality of through holes are opened on the motor bracket around the periphery of the driving motor, and the middle portion of the motor bracket is recessed downward to form a mounting position, and the driving motor is placed at the mounting position; An upper shell is installed above the lower shell, and an air outlet is provided on the top of the upper shell; A wind wheel is rotatably arranged inside the upper shell body, the wind wheel is coaxially arranged with the air inlet channel, the upper shell body, the first guide wall and the bracket together enclose an air supply channel, the driving motor is used to drive the wind wheel to rotate, the air inlet channel is connected with the air supply channel through the connecting hole, the air supply channel is connected with the air outlet hole, both ends of the through hole are connected to the air supply channel, when the wind wheel rotates, the air can enter the lower shell body through the air inlet hole, and then be filtered by the filter element and enter the air inlet channel, and the air in the air inlet channel can enter the air supply channel through the connecting hole under the drive of the wind wheel and be discharged from the air outlet hole.

2. The air purifier according to claim 1, characterized in that: A second guide wall is arranged at the bottom of the wind wheel. The second guide wall is annular and arranged around the circumference of the wind wheel. The second guide wall gradually inclines upward from its inner circle to its outer circle.

3. The air purifier according to claim 2, characterized in that: The second guide wall is an upwardly convex arc surface.

4. The air purifier according to claim 3, characterized in that: The first guide wall extends toward the center direction of the lower shell and gradually tilts downward, and the first guide wall and the second guide wall have the same tilt direction and the same curvature.

5. The air purifier according to claim 4, characterized in that: The curvature of the first guide wall is between greater than or equal to 30 degrees and less than or equal to 45 degrees.

6. The air purifier according to claim 2, characterized in that: A third guide wall is arranged on the top of the wind wheel. The third guide wall is gradually inclined upward from the center of the wind wheel. A plurality of blades are arranged between the third guide wall and the second guide wall.

7. The air purifier according to claim 1, characterized in that: The bottom surface of the first guide wall is fixedly connected to the bracket via a fastener, and the bottom end of the first guide wall abuts against the upper surface of the bracket.

8. The air purifier according to claim 7, characterized in that: A stop rib extends upward from the upper surface of the bracket, and the outer diameter of the stop rib is smaller than the inner diameter of the first guide wall.

9. The air purifier according to claim 1, characterized in that: The first guide wall and the lower shell are integrally formed.

10. The air purifier according to claim 1, characterized in that: An annular groove is formed on the upper surface of the lower shell, and an annular protrusion is formed on the lower surface of the upper shell. The annular protrusion can be inserted into the annular groove and connected to each other through a fastener.

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