An air purifier

Abstract

The utility model discloses an air purifier belongs to air purification equipment technical field. It includes: air inlet pipe and air outlet pipe, both upside down and connect, and both the top surface, bottom surface of air purifier structure formed after connecting are closed surface, the top surface of air outlet pipe is provided with the communicating port, and the inner chamber of air inlet pipe is communicated with the air outlet pipe through the communicating port, the circumferential side wall of air inlet pipe is provided with a plurality of air inlet face, and every air inlet face is provided with air inlet, the air outlet face is formed on the opposite setting two sides of air outlet pipe respectively, and every air outlet face is provided with air outlet, the filter screen is set in air inlet pipe and covers in communicating port. Set up air inlet and air outlet on every side wall of air inlet pipe and air outlet pipe respectively, can handle the air in larger range fast, realizes the uniform suction and high -efficient discharge of air, effectively promotes the air circulation times in unit time, thereby significantly enhances purification efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of air purification equipment, and specifically relates to an air purifier. Background Technology

[0002] As a key device for improving indoor air quality, air purifiers rely on the filtering effect of filters or screens on harmful substances such as particulate matter and gaseous pollutants in the air. In actual use, as the life cycle of the filter ends, users need to regularly disassemble and replace the filter to maintain purification efficiency.

[0003] Existing air purifiers suffer from low purification efficiency because their air intake and exhaust structures are poorly designed, preventing them from fully realizing their purification potential. Summary of the Invention

[0004] This invention addresses the aforementioned problems in the existing technology by proposing an air purifier that can improve purification efficiency.

[0005] This utility model can be achieved through the following technical solutions:

[0006] An air purifier, comprising:

[0007] The air inlet and air outlet are stacked one on top of the other and connected, and the top and bottom surfaces of the air purifier structure formed by the connection are both closed surfaces.

[0008] The top surface of the air outlet duct is provided with a connecting port, and the air inlet duct is connected to the inner cavity of the air outlet duct through the connecting port;

[0009] The circumferential sidewall of the air inlet duct is provided with multiple air inlet surfaces, and each air inlet surface is provided with an air inlet.

[0010] The air outlet duct has air outlet surfaces formed on two oppositely arranged sides, and each air outlet surface has an air outlet.

[0011] A filter screen is disposed inside the air inlet duct and covers the connecting port.

[0012] As a further improvement of this utility model, the first flow control unit includes a first flow meter and a first solenoid valve, and the control unit controls the opening and closing of the first solenoid valve according to the data fed back by the first flow meter.

[0013] As a further improvement of this utility model, it also includes a connecting plate, which is installed on the top surface of the air outlet. The connecting plate has a vent with a spider web structure at its center, and the vent covers the connecting port.

[0014] As a further improvement of this utility model, the air inlet duct and the air outlet duct are connected by the connecting plate.

[0015] As a further improvement of this utility model, the filter screen is arranged in a cylindrical structure, with its top surface connected to the top surface of the air inlet duct, and the bottom surface of the filter screen abutting against the connecting plate and covering the ventilation opening.

[0016] As a further improvement of this utility model, the edge of the connecting plate is provided with a recessed positioning slot and a protruding positioning strip.

[0017] As a further improvement of this utility model, the bottom edge of the air inlet duct is provided with a positioning block that cooperates with the positioning slot, and a positioning groove that cooperates with the positioning protrusion.

[0018] As a further improvement to this utility model, it also includes:

[0019] A centrifugal impeller is disposed inside the air outlet duct;

[0020] A drive motor is connected to the centrifugal impeller and drives it to rotate.

[0021] As a further improvement of this utility model, the air inlet end at the top of the centrifugal impeller is embedded in the communication port, and an annular air outlet cavity is formed on the outer periphery of the centrifugal impeller. After the airflow is drawn in through the air inlet end at the top of the centrifugal impeller, it diffuses radially through the annular air outlet cavity.

[0022] As a further improvement of this utility model, the two closed surfaces of the air outlet are provided with air guide plates, and the centrifugal impeller is located at the symmetrical center of the two air guide plates.

[0023] As a further improvement of this utility model, the air guide plate is arranged in an L-shape, with its long side set as an arc-shaped air guide surface. When the centrifugal impeller rotates, it drives the airflow to be guided along the arc-shaped air guide surface to the air outlet.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. By setting the air inlet and outlet on the side walls of the air inlet and outlet ducts respectively, air over a larger area can be processed quickly, achieving uniform air intake and efficient exhaust, effectively increasing the number of air circulations per unit time, thereby significantly enhancing purification efficiency.

[0026] 2. When the air inlet and air outlet are assembled, the positioning block at the bottom of the air inlet is inserted into the positioning slot on the connecting plate, and the positioning protrusion on the connecting plate is inserted into the positioning groove at the bottom of the air inlet, thereby achieving precise alignment and stable connection between the two. In addition, this connection structure design also has a certain guiding and limiting function, which can automatically guide the air inlet and air outlet to align during the assembly process and prevent misalignment or loosening caused by vibration or external force during use, thereby improving the stability and sealing of the overall structure.

[0027] 3. The centrifugal impeller is directly embedded with the connecting port, which minimizes the airflow path and resistance, improving the fan's efficiency in drawing in filtered air. At the same time, the annular air outlet cavity, combined with the radial diffusion structure, can evenly distribute air to both sides of the air outlet duct, increasing the air outlet area and air delivery efficiency, thereby accelerating the indoor air purification speed.

[0028] 4. The air guide plate is designed in an L-shape, with its long side set as an arc-shaped air guide surface. This arc-shaped air guide surface matches the rotation direction of the centrifugal impeller, which can guide the pressurized airflow to flow smoothly along the set path when the centrifugal impeller rotates at high speed, reduce turbulence and resistance, improve air output efficiency, and effectively reduce airflow impact and friction, thereby reducing the noise generated during operation and improving the quiet experience for users, especially suitable for low-speed operation mode at night. Attached Figure Description

[0029] Figure 1 This is a cross-sectional view of the air purifier of this utility model;

[0030] Figure 2 This is a structural diagram of the air outlet duct after the connecting plate is installed;

[0031] Figure 3 This is a schematic diagram of the bottom structure of the air inlet duct of this utility model;

[0032] Figure 4 This is a schematic diagram of the air outlet duct of this utility model;

[0033] Figure 5 This is a cross-sectional view of the air outlet duct of this utility model.

[0034] In the diagram, 100 is the air inlet duct; 110 is the air inlet surface; 120 is the filter screen; 130 is the positioning block; and 140 is the positioning groove.

[0035] 200. Air outlet duct; 210. Air outlet surface; 220. Connecting port; 230. Centrifugal impeller; 240. Drive motor; 250. Air guide plate; 251. Arc-shaped air guide surface;

[0036] 300, connecting plate; 310, vent; 320, positioning slot; 330, positioning protrusion. Detailed Implementation

[0037] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. The technical methods of the present invention will be further described, but the present invention is not limited to these embodiments.

[0038] like Figures 1-5 As shown, this utility model provides an air purifier, comprising:

[0039] The air inlet duct 100 and the air outlet duct 200 are stacked one on top of the other and connected, and the top and bottom surfaces of the air purifier structure formed by the connection are both closed surfaces.

[0040] The top surface of the air outlet duct 200 is provided with a connecting port 220, and the air inlet duct 100 is connected to the inner cavity of the air outlet duct 200 through the connecting port 220;

[0041] The circumferential sidewall of the air inlet duct 100 is provided with multiple air inlet surfaces 110, and each air inlet surface 110 is provided with an air inlet.

[0042] The air outlet 200 has air outlet surfaces 210 formed on two oppositely arranged sides, and each air outlet surface 210 has an air outlet.

[0043] A filter screen 120 is disposed inside the air inlet duct 100 and covers the connecting port 220.

[0044] The overall air circulation path is as follows: air enters from the air inlet duct 100 around each air inlet, is filtered by the filter screen 120, flows into the interior of the air outlet duct 200 through the connecting port 220 at the top of the air outlet duct 200, and is finally discharged into the indoor environment along the air outlets on both sides of the air outlet duct 200.

[0045] It should be noted that most current air purifiers use a single-direction air intake or exhaust design, resulting in uneven airflow distribution, high local resistance, and affecting overall purification efficiency.

[0046] In contrast, the air purifier provided in this embodiment sets the air inlet and air outlet on the side walls of the air inlet duct 100 and the air outlet duct 200 respectively, which can quickly process air over a larger range, achieve uniform air intake and efficient air exhaust, effectively increase the number of air circulations per unit time, and thus significantly enhance purification efficiency.

[0047] In addition, this air inlet and outlet layout design makes the airflow path smoother, reduces air flow resistance, and the stacked air inlet duct 100 and air outlet duct 200 make disassembly more convenient, thereby improving the ease of replacing the filter 120.

[0048] Preferably, it also includes a connecting plate 300, which is installed on the top surface of the air outlet duct 200. The connecting plate 300 has a spider web-like structure of ventilation opening 310 at its center. The ventilation opening 310 covers the connecting opening 220 and is used to guide filtered air from the air inlet duct 100 into the inner cavity of the air outlet duct 200.

[0049] The spiderweb-like vent 310 is composed of multiple radial or annular ribs, forming multiple small ventilation channels, which enhances the structural strength of the connecting plate 300 while ensuring sufficient ventilation area.

[0050] Preferably, the air inlet duct 100 and the air outlet duct 200 are detachably connected by a connecting plate 300, specifically:

[0051] A recessed positioning slot 320 and a protruding positioning ridge 330 are provided on the edge of the connecting plate 300.

[0052] Correspondingly, a positioning block 130 that mates with the positioning slot 320 and a positioning groove 140 that mates with the positioning protrusion 330 are provided at the bottom edge of the air inlet duct 100.

[0053] When the air inlet duct 100 and the air outlet duct 200 are assembled, the positioning block 130 at the bottom of the air inlet duct 100 is inserted into the positioning slot 320 on the connecting plate 300, and at the same time, the positioning protrusion 330 on the connecting plate 300 is inserted into the positioning groove 140 at the bottom of the air inlet duct 100, thereby achieving precise alignment and stable connection between the two.

[0054] Furthermore, this connection structure design also has certain guiding and limiting functions. During the assembly process, it can automatically guide the air inlet duct 100 and the air outlet duct 200 to align, and prevent misalignment or loosening caused by vibration or external force during use, thereby improving the stability and sealing of the overall structure.

[0055] Preferably, the filter 120 is arranged in a cylindrical structure, with its top surface connected to the top surface of the air inlet duct 100, and the bottom surface of the filter 120 abutting against the connecting plate 300 and covering the vent 310, ensuring that all air entering the air outlet duct 200 must be filtered by the filter 120 before entering the inner cavity of the air outlet duct 200 through the vent 310, thereby achieving efficient air purification.

[0056] In addition, since the cylindrical structure of the filter 120 is evenly distributed around the central axis of the air inlet duct 100, it forms a large filtration contact area, which facilitates the uniform distribution of airflow along the circumference and its passage through the filter 120, thereby improving the overall purification efficiency and airflow capacity.

[0057] Preferred options also include:

[0058] The centrifugal impeller 230 is located inside the air outlet duct 200. It adopts a multi-blade structure design, which has good aerodynamic performance and can achieve efficient air delivery with low noise.

[0059] The drive motor 240 is connected to the centrifugal impeller 230 and drives it to rotate. It is used to drive the centrifugal impeller 230 to rotate at high speed, thereby drawing the air filtered by the filter screen 120 into the air outlet 200, pressurizing it and sending it out through the air outlet.

[0060] Furthermore, the air inlet end at the top of the centrifugal impeller 230 extends downward and is embedded in the connecting port 220 at the top of the air outlet duct 200, forming a continuous airflow channel with the ventilation port 310 on the connecting plate 300. During the high-speed rotation of the centrifugal impeller 230, air is drawn in from the top air inlet end and diffuses outward under the action of centrifugal force, thus forming an annular air outlet cavity in its outer peripheral area.

[0061] The intake air is accelerated by the centrifugal impeller 230 and discharged radially outward to the annular air outlet cavity. It is then evenly delivered to the indoor space through the air outlet of the air outlet duct 200.

[0062] It is worth mentioning that the design of directly embedding the top of the centrifugal impeller 230 into the connecting port 220 minimizes the airflow path and reduces resistance, thereby improving the fan's efficiency in drawing in filtered air. At the same time, the annular air outlet cavity, combined with the radial diffusion structure, can evenly distribute air to both sides of the air outlet duct 200, increasing the air outlet area and air delivery efficiency, thus accelerating the indoor air purification speed.

[0063] Furthermore, since the airflow enters the centrifugal impeller 230 through axial intake and radial discharge, which conforms to its natural flow direction, it can effectively reduce airflow disturbance and eddy current loss, reduce operating noise, and improve energy efficiency, making it particularly suitable for home or office environments that operate for extended periods.

[0064] Preferably, the air outlet duct 200 has two closed surfaces with air guide plates 250 arranged opposite each other, and the centrifugal impeller 230 is located at the symmetrical center of the two air guide plates 250 to ensure that the airflow is subjected to uniform force and symmetrically distributed during rotation.

[0065] The air guide plate 250 is designed in an L-shape, with its long side being an arc-shaped air guide surface 251. This arc-shaped air guide surface 251 is matched with the rotation direction of the centrifugal impeller 230, which can guide the pressurized airflow to flow smoothly along the set path when the centrifugal impeller 230 rotates at high speed, and finally discharge efficiently from the corresponding air outlet.

[0066] It should be noted that in traditional air purifiers, the airflow is prone to eddies or backflow under the action of the fan, resulting in some wasted kinetic energy. However, by setting up symmetrically arranged L-shaped air guide plates 250 and arc-shaped air guide surfaces 251, the airflow is effectively guided to flow along a predetermined path, reducing turbulence and resistance, and improving air output efficiency.

[0067] In addition, the design of the arc-shaped air guide surface 251 can effectively reduce airflow impact and friction, thereby reducing the noise generated during operation and improving the quiet experience for users, especially suitable for low-speed operation at night.

[0068] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of any combination of the above technical features. The above are specific embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

[0069] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0070] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is 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 as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0071] The technical solutions of the various embodiments of this utility model can be combined with each other, but only if they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

[0072] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An air purifier, characterized in that, include: The air inlet and air outlet are stacked one on top of the other and connected, and the top and bottom surfaces of the air purifier structure formed by the connection are both closed surfaces. The top surface of the air outlet duct is provided with a connecting port, and the air inlet duct is connected to the inner cavity of the air outlet duct through the connecting port; The circumferential sidewall of the air inlet duct is provided with multiple air inlet surfaces, and each air inlet surface is provided with an air inlet. The air outlet duct has air outlet surfaces formed on two oppositely arranged sides, and each air outlet surface has an air outlet. A filter screen is disposed inside the air inlet duct and covers the connecting port.

2. An air purifier according to claim 1, characterized in that, It also includes a connecting plate, which is installed on the top surface of the air outlet. The connecting plate has a spider web-like vent at its center, and the vent covers the connecting opening.

3. An air purifier according to claim 2, characterized in that, The air inlet duct and the air outlet duct are connected by the connecting plate.

4. An air purifier according to claim 2, characterized in that, The filter screen is arranged in a cylindrical structure, with its top surface connected to the top surface of the air inlet duct, and the bottom surface of the filter screen abutting against the connecting plate and covering the vent.

5. An air purifier according to claim 2, characterized in that, The edge of the connecting plate is provided with a recessed positioning slot and a protruding positioning strip.

6. An air purifier according to claim 5, characterized in that, The bottom edge of the air inlet duct is provided with a positioning block that mates with the positioning slot, and a positioning groove that mates with the positioning protrusion.

7. An air purifier according to claim 1, characterized in that, Also includes: A centrifugal impeller is disposed inside the air outlet duct; A drive motor is connected to the centrifugal impeller and drives it to rotate.

8. An air purifier according to claim 7, characterized in that, The air inlet at the top of the centrifugal impeller is embedded in the connecting port, and an annular air outlet cavity is formed on the outer periphery of the centrifugal impeller. After the airflow is drawn in through the air inlet at the top of the centrifugal impeller, it diffuses radially through the annular air outlet cavity.

9. An air purifier according to claim 7, characterized in that, The air outlet duct has two closed surfaces that are opposite each other equipped with air guide plates, and the centrifugal impeller is located at the symmetrical center of the two air guide plates.

10. An air purifier according to claim 9, characterized in that, The air guide plate is L-shaped, with its long side set as an arc-shaped air guide surface. When the centrifugal impeller rotates, it drives the airflow to be guided along the arc-shaped air guide surface to the air outlet.

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