A desktop purifier

Abstract

The utility model relates to a kind of desktop purifier, including shell, top cover, filter assembly and centrifugal fan, the inside of shell is defined with containing cavity, the side surface of shell is equipped with the air inlet hole being communicated with containing cavity, and the top of shell is in concave and is formed with the purification cavity being communicated with containing cavity, filter element is installed in purification cavity;Top cover is detachably installed in the top of shell, for covering the purification cavity, top cover is distributed with multiple gas outlet holes being communicated with purification cavity along circumference;Centrifugal fan is installed in containing cavity, centrifugal fan has the air inlet end being extended along horizontal direction and being opposite to air inlet hole and the air outlet end being opposite to filter element, and centrifugal fan is configured to drive external air from air inlet hole into containing cavity and flow to the purification cavity, and after filtering by filter element, flow from gas outlet hole.This embodiment technical scheme has good purification effect, and simple structure small volume, facilitate user to move, more extensive application range.

Description

Technical Field

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

[0002] The continuous deterioration of air quality and harmful substances such as benzene and formaldehyde produced by indoor decoration have had a significant impact on people's health. In addition, people are spending more and more time in the office, and due to outdoor air pollution and considerations of indoor energy conservation, people are opening windows for ventilation less and less, resulting in poor indoor air circulation. In addition, harmful substances such as benzene and formaldehyde produced by indoor decoration can directly endanger people's health. In order to reduce the impact of indoor air on people's health, people usually use home desktop air purifiers to purify the air.

[0003] Currently, home desktop air purifiers are typically placed in a corner of the room, but the areas most in need of purification are places where people spend a lot of time, such as near the desktop. A desktop purifier placed in a corner takes a long time to purify the air near the desktop. In other words, while existing home desktop air purifiers can provide clean air, they cannot be moved freely, causing inconvenience for users. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this application provides a desktop air purifier.

[0005] This application provides a desktop air purifier, including: The housing has an internal cavity, one side of which has an air inlet communicating with the cavity, and the top of the housing has a recessed purification cavity communicating with the cavity. A filter element is installed in the purification cavity, and the filter element is used to filter the air flowing from the cavity into the purification cavity. A top cover, which is detachably installed on the top of the housing, is used to cover the purification chamber. The top cover has multiple air outlets that communicate with the purification chamber distributed circumferentially. A centrifugal fan is installed in the receiving cavity. The centrifugal fan has an air inlet end that extends horizontally and is directly opposite the air inlet hole and an air outlet end that is directly opposite the filter element. The centrifugal fan is configured to drive external air into the receiving cavity from the air inlet hole and flow into the purification cavity, and after being filtered by the filter element, flow out from the air outlet hole.

[0006] In one possible implementation, the surface of the top cover that contacts the cavity wall of the purification chamber is provided with a plurality of slots along the circumferential direction, and the cavity wall of the purification chamber is provided with a plurality of limiting posts at intervals along the circumferential direction. The plurality of limiting posts correspond one-to-one with the plurality of slots, and the slots include vertical channels and horizontal channels that are interconnected. When the limiting post slides from the vertical channel into the horizontal channel and is abutted, the top cover is fixedly connected to the housing.

[0007] In one possible implementation, the top surface of the top cover is recessed to form a groove, and a grip strip extends radially from the center of the groove. The two sides of the center of the grip strip are recessed inward to form symmetrical grip positions, which are arc-shaped.

[0008] In one possible implementation, the housing includes a first housing and a second housing, the first housing being located below the second housing, the air inlet being formed on the side of the second housing, a bracket separating the first housing and the second housing being provided, an annular strip extending outward from the outer edge of the bracket, the lower surface of the annular strip forming a mating interface with the side of the bracket, the mating interface abutting against the top edge of the first housing, a mating groove being formed on the upper surface of the annular strip, and the bottom edge of the second housing engaging with the mating groove, so that the second housing is detachably connected to the first housing.

[0009] In one possible implementation, a fixing frame is also included, wherein a first connecting post is provided on the top surface of the support, and a second connecting post is provided on the surface of the fixing frame facing the support, the second connecting post being inserted into the first connecting post so that the fixing frame is fixed above the support, and the centrifugal fan is rotatably installed in the fixing frame.

[0010] In one possible implementation, a through hole is provided in the middle of the bottom of the purification chamber, connecting the purification chamber and the receiving chamber.

[0011] In one possible implementation, anti-slip strips are adhered to the bottom surface of the housing.

[0012] In one possible implementation, the front surface of the housing is embedded with a liquid crystal display screen and a plurality of control keys, the liquid crystal display screen being located below the control keys.

[0013] The technical solutions provided in this application have the following advantages compared with the prior art: By defining a receiving cavity inside the casing and installing a centrifugal fan within the receiving cavity, with the air inlet of the centrifugal fan facing the air inlet hole and the air outlet of the centrifugal fan facing the filter element, when the centrifugal fan is turned on, the centrifugal fan drives external air into the receiving cavity through the air inlet hole, and then flows into the purification chamber. Since the purification chamber is equipped with a filter element, the air flowing into the purification chamber is filtered by the filter element, and finally flows out through the air outlet on the top cover, thereby achieving air purification. The structure is simple and small in size, making it convenient for users to move and applicable to a wider range of applications. Attached Figure Description

[0014] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0015] 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] In the attached image: Figure 1 This is a structural schematic diagram of a desktop air purifier according to the present invention; Figure 2 This is a structural schematic diagram of a desktop air purifier from another perspective of this utility model; Figure 3 This is a cross-sectional schematic diagram of a desktop air purifier according to the present invention; Figure 4 This is a schematic diagram of the top cover and the second shell in a desktop air purifier according to this utility model. Figure 5 This is a schematic diagram of the structure of the second shell and centrifugal fan in a desktop air purifier according to the present invention.

[0017] Icon labels: 10. Housing; 11. Second housing; 12. First housing; 12a. Air inlet; 20. Top cover; 20a. Air outlet; 20b. Groove; 30. Grip part; 30a. Grip position; 40. LCD display screen; 50. Control key; 60. Fixing bracket; 70. Filter element; 80. Centrifugal fan; 80a. Air inlet end; 80b. Air outlet end; 90. Bracket; 91. Annular strip; 91a. Docking groove; 91b. Docking interface; 100. Second connecting post; 110. First connecting post; 120. Limiting post; 130. Slot; 131. Vertical channel; 132. Horizontal channel; 140. Through hole. Detailed Implementation

[0018] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0019] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0020] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0021] Please refer to Figures 1 to 5 This application provides a desktop air purifier, including a housing 10, a top cover 20, and a centrifugal fan 80.

[0022] Specifically, the housing 10 has an internal cavity, and one side of the housing 10 has an air inlet 12a communicating with the cavity. The top of the housing 10 is recessed to form a purification cavity communicating with the cavity. A filter element 70 is installed in the purification cavity to filter the air flowing from the cavity into the purification cavity. A top cover 20 is detachably installed on the top of the housing 10 to cover the purification cavity. The top cover 20 has multiple air outlets communicating with the purification cavity distributed circumferentially. A centrifugal fan 80 is installed in the cavity. The centrifugal fan 80 has an air inlet end 80a extending horizontally and facing the air inlet 12a, and an air outlet end 80b facing the filter element 70. The centrifugal fan 80 is configured to drive external air into the cavity through the air inlet 12a and flow into the purification cavity, where it is filtered by the filter element 70 and then flows out through the air outlet.

[0023] Based on the above-mentioned technical features, the desktop air purifier has a housing cavity defined inside the casing 10, and a centrifugal fan 80 is installed in the housing cavity. The air inlet end 80a of the centrifugal fan 80 is directly opposite the air inlet hole, and the air outlet end 80b of the centrifugal fan 80 is directly opposite the filter element 70. When the centrifugal fan 80 is turned on, the centrifugal fan 80 drives the external air to enter the housing cavity through the air inlet hole, and then flows into the purification cavity. Since the purification cavity is equipped with the filter element 70, the air flowing into the purification cavity is filtered by the filter element 70, and finally flows out through the air outlet on the top cover 20, thereby achieving air purification. The structure is simple and small in size, convenient for users to move, and has a wider range of applications.

[0024] In addition, the top cover 20 has multiple air vents distributed around the perimeter, rather than venting air in one direction. This allows clean air to diffuse evenly from the top to the surrounding areas of the desktop (such as the user's left, right, and front), avoiding the problem of localized cleanliness and contamination caused by traditional unidirectional airflow. This ensures that the entire activity area of ​​the desktop (such as around the keyboard, mouse, water cup, and books) is covered by clean air, improving the comprehensiveness of purification.

[0025] In one possible implementation, the surface of the top cover 20 that contacts the wall of the purification chamber is provided with a plurality of slots 130 along the circumferential direction. The wall of the purification chamber is provided with a plurality of limiting posts 120 at intervals along the circumferential direction. The plurality of limiting posts 120 correspond one-to-one with the plurality of slots 130. The slots 130 include vertical channels 131 and horizontal channels 132 that are interconnected. When the limiting post 120 slides from the vertical channel 131 into the horizontal channel 132 and is abutted, the top cover 20 is fixedly connected to the housing 10. In other words, when the top cover 20 needs to be removed to replace the filter element 70, simply rotate the top cover 20 so that the limiting post 120 moves from the horizontal channel 132 to the vertical channel 131. At this time, simply lift the top cover 20 upwards to remove it. After the filter element 70 is replaced, put the top cover 20 back into the purification chamber and rotate the top cover 20 so that the fiber column slides from the vertical channel 131 into the horizontal channel 132. At this time, the limiting post 120 is restricted by the channel wall of the horizontal channel 132 and cannot lift the top cover 20 upwards, thereby achieving a detachable connection between the top cover 20 and the housing 10.

[0026] In one possible implementation, the top surface of the top cover 20 has a recessed groove 20b. A grip strip extends radially from the center of the groove 20b, and symmetrical grip positions 30a are recessed inward on both sides of the center of the grip strip. The grip positions 30a are arc-shaped. Thus, when the user needs to move the desktop air purifier, they can quickly pick it up by aligning their hand with the grip position 30a and lifting it upward, making it convenient to pick up and put down and preventing it from falling during the transfer process due to the lack of grip positions 30a.

[0027] In one possible implementation, the housing 10 includes a first housing 12 and a second housing 11. The first housing 12 is located below the second housing 11. The air inlet 12a is formed on the side of the second housing 11. A bracket 90 is provided between the first housing 12 and the second housing 11 to separate them. An annular strip 91 extends outward from the outer edge of the bracket 90. The lower surface of the annular strip 91 forms a mating interface 91b with the side of the bracket 90. The mating interface 91b abuts against the top edge of the first housing 12. A mating groove 91a is formed on the upper surface of the annular strip 91. The bottom edge of the second housing 11 engages with the mating groove 91a so that the second housing 11 is detachably connected to the first housing 12.

[0028] For example, the bracket 90 is placed inside the first housing 12, at which point the side of the bracket 90 and the interface 91b formed by the lower surface of the annular bar 91 are aligned with the top edge of the first housing 12, so that the bracket 90 is fixed inside the first housing 12. Then, the bottom edge of the second housing 11 is inserted into the slot 130 of the annular bar 91, thereby realizing the detachable connection of the second housing 11 to the first housing 12. The structure is simple and easy to disassemble and assemble. When it is necessary to maintain or replace the components inside the housing 10, it is only necessary to loosen the fixing screws and lift the second housing 11 upward to disassemble it.

[0029] In one possible implementation, a fixing frame 60 is also included. The top surface of the support 90 is provided with a first connecting post 110, and the surface of the fixing frame 60 facing the support 90 is provided with a second connecting post 100. The second connecting post 100 is inserted into the first connecting post 110 so that the fixing frame 60 is fixed above the support 90, and the centrifugal fan 80 is rotatably installed in the fixing frame 60.

[0030] For example, the second connecting post 100 on the fixing frame 60 is aligned with the first connecting post 110 on the bracket 90, and then the fixing frame 60 is pushed towards the bracket 90 so that the second connecting post 100 and the first connecting post 110 are inserted into each other, so as to realize the detachable connection between the fixing frame 60 and the bracket 90, which facilitates subsequent maintenance or other functions.

[0031] In one embodiment, a through hole 140 is provided in the middle of the bottom of the purification chamber, which connects the purification chamber and the receiving chamber.

[0032] In one possible implementation, anti-slip strips are adhered to the bottom surface of the casing 10. In this way, the anti-slip strips on the bottom surface of the casing 10 provide sufficient friction when placed on a table, preventing the purifier from sliding and potentially breaking.

[0033] In one possible implementation, the front surface of the housing 10 is embedded with an LCD screen 40 and multiple control buttons 50, with the LCD screen 40 located below the control buttons 50. Thus, different function modes can be selected by choosing the control buttons 50, and the LCD screen 40 can also display information such as the corresponding mode and airflow rate of the desktop air purifier, allowing the user to monitor the working status of the desktop air purifier in real time.

[0034] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A desktop air purifier, characterized in that, include: The housing has an internal cavity, one side of which has an air inlet communicating with the cavity, and the top of the housing has a recessed purification cavity communicating with the cavity. A filter element is installed in the purification cavity, and the filter element is used to filter the air flowing from the cavity into the purification cavity. A top cover, which is detachably installed on the top of the housing, is used to cover the purification chamber. The top cover has multiple air outlets that communicate with the purification chamber distributed circumferentially. A centrifugal fan is installed in the receiving cavity. The centrifugal fan has an air inlet end that extends horizontally and is directly opposite the air inlet hole and an air outlet end that is directly opposite the filter element. The centrifugal fan is configured to drive external air into the receiving cavity from the air inlet hole and flow into the purification cavity, and after being filtered by the filter element, flow out from the air outlet hole.

2. The desktop air purifier according to claim 1, characterized in that, The top cover has multiple slots arranged circumferentially on the surface that contacts the wall of the purification chamber. The wall of the purification chamber has multiple limiting posts spaced apart circumferentially. Each of the multiple limiting posts corresponds to one of the multiple slots. The slots include vertical channels and horizontal channels that are interconnected. When the limiting post slides from the vertical channel into the horizontal channel and is abutted, the top cover is fixedly connected to the housing.

3. The desktop air purifier according to claim 1, characterized in that, The top surface of the top cover is recessed to form a groove, and a grip strip extends radially from the center of the groove. The two sides of the center of the grip strip are recessed inward to form symmetrical grip positions, and the grip positions are arranged in an arc shape.

4. The desktop air purifier according to claim 1, characterized in that, The housing includes a first housing and a second housing. The first housing is located below the second housing. The air inlet is opened on the side of the second housing. A bracket is provided between the first housing and the second housing to separate them. An annular strip extends outward from the outer edge of the bracket. The lower surface of the annular strip forms a mating interface with the side of the bracket. The mating interface abuts against the top edge of the first housing. A mating groove is opened on the upper surface of the annular strip. The bottom edge of the second housing engages with the mating groove so that the second housing can be detachably connected to the first housing.

5. The desktop air purifier according to claim 4, characterized in that, It also includes a fixing frame, the top surface of which is provided with a first connecting column, and the surface of the fixing frame facing the support is provided with a second connecting column. The second connecting column is inserted into the first connecting column so that the fixing frame is fixed above the support, and the centrifugal fan is rotatably installed in the fixing frame.

6. The desktop air purifier according to claim 1, characterized in that, The bottom center of the purification chamber has a through hole connecting the purification chamber and the receiving chamber.

7. The desktop air purifier according to claim 1, characterized in that, The bottom surface of the casing is covered with anti-slip strips.

8. The desktop air purifier according to claim 1, characterized in that, The front surface of the casing is embedded with an LCD screen and multiple control keys, with the LCD screen located below the control keys.

Images