Air purifier with independent double-air-duct structure

Abstract

The utility model belongs to the field of purifiers, particularly relates to an air purifier with an independent double-air-duct structure, and provides the following scheme aiming at the problems that the impact of airflow on a filter element is large and the improvement of the air purification efficiency is limited due to the fact that an existing purifier is lack of effective regulation and control on the speed of the airflow. The air purifier of the independent double-air-duct structure comprises a main machine shell, the interior of the main machine shell is divided into an upper purification cavity and a lower purification cavity, a fan shell cover is fixedly arranged in the upper purification cavity, forward-inclined double centrifugal fans are arranged in the fan shell cover, and the forward-inclined double centrifugal fans are arranged in the lower purification cavity. A backward-inclined centrifugal fan is arranged in the lower purification cavity; the air inlet assembly is arranged on the main machine shell and used for reducing the speed of airflow and prolonging the standing time of the airflow. Through the arrangement of the air inlet assembly, the air flow speed is slowed down, the impact on the filter element is reduced, the retention time of the air flow in the filter element is prolonged, the air purification efficiency is improved, and the service life of the filter element is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to air purifier technical field especially, it relates to an air purifier of independent double air duct structure. BACKGROUND

[0002] With the aggravation of environmental pollution and people's attention to indoor air quality is improving ceaselessly, air purifier has become an indispensable part in modern family and office environment.

[0003] At present, although the existing air purifier can realize certain air purification function, but its airflow processing mode is often more direct, lacks the effective regulation and control to the speed of airflow, leads to the impact of airflow to filter core is bigger, shortens the service life of filter core, and limits the promotion of air purification efficiency. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcoming that the existing technology lacks the effective regulation and control to the speed of airflow, leads to the impact of airflow to filter core is bigger, shortens the service life of filter core, and limits the promotion of air purification efficiency, and proposes an air purifier of independent double air duct structure.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] An air purifier of independent double air duct structure, comprising:

[0007] Main body shell, the inside of main body shell is divided into upper purification cavity and lower purification cavity respectively, the inside of upper purification cavity is fixedly provided with fan shell cover, the inside of fan shell cover is provided with front-inclined double centrifugal fan, the inside of lower purification cavity is provided with rear-inclined centrifugal fan;

[0008] Air inlet assembly, air inlet assembly is set up on main body shell and is used to slow down the speed of airflow and increase the residence time of airflow.

[0009] In a possible design, the air inlet assembly includes two upper air inlets and a lower air inlet opened on the two sides and the rear side of the main body shell, the inside of the two upper air inlets and the lower air inlet is detachably provided with a frame, the inside of the three frames is respectively provided with three purification filter cartridges, the outside of the three frames is fixedly provided with a front small and rear large diverging air cover.

[0010] In a possible design, the two upper air inlets are communicated with the upper purification cavity, the lower air inlet is communicated with the lower purification cavity, and the air inlet grilles are clamped on the openings of the two upper air inlets and the lower air inlet.

[0011] In a possible design, the top of the main body shell is provided with an upper air outlet, the upper air outlet is in communication with the fan shell cover, and two lower air outlets are formed in the two sides of the main body shell, and the two lower air outlets are in communication with the lower purification cavity.

[0012] In a possible design, air outlet grilles are clamped at the openings of the upper air outlet and the two lower air outlets.

[0013] In a possible design, the lower purification cavity is fixedly provided with air deflectors on the upper side and the lower side of the rear-inclined centrifugal fan, the air deflectors include flat plates and V-shaped plates, the side of the V-shaped plate close to the flat plate is an inner plate surface, and the side of the V-shaped plate away from the flat plate is an outer plate surface.

[0014] In the application, when the air purifier is used, the air purifier is first placed in a position where it is needed to be used, and then the air purifier is connected to the power supply, and the air purifier is started to work by pressing the start key (the mode can be selected, such as single-cavity purification or double-cavity purification), at this time, the front-inclined double centrifugal fan and the rear-inclined centrifugal fan work at the same time.

[0015] The upper purification process is as follows: the front-inclined double centrifugal fan is driven by the motor to rotate the impeller to work, so that the air enters the air purifier through the two upper air inlets on the two sides of the main body shell, the large particles in the air are preliminarily filtered through the air inlet grille, the filtered air enters the gradually expanding air cover, the gradually expanding air cover is designed to be small in front and large at back, so that the airflow entering the gradually expanding air cover is gradually expanded, the airflow speed is slowed down, and the impact of the airflow on the filter element is reduced, the slowed airflow enters the purification filter element, the purification filter element is provided with three purification filter elements, the three purification filter elements are used to further remove pollutants in the air, such as PM2.5, formaldehyde, bacteria and viruses, the three purification filter elements can increase the residence time of the airflow in the purification filter element, thereby improving the purification effect, the filtered air enters the upper purification cavity, the centrifugal force generated by the front-inclined double centrifugal fan accelerates the air and changes the flow direction of the air, the airflow is guided through the fan shell cover (which is composed of a cylindrical air duct shell and a horn-shaped exhaust duct), and finally discharged from the upper air outlet, the air outlet grille is located at the opening of the upper air outlet and is used to further arrange the airflow, the design of the upper air duct forms a volute centrifugal air duct, which effectively guides the airflow, and cooperates with the front-inclined double centrifugal fan to realize the large air volume purification form of left and right double-side air inlet and top air outlet.

[0016] Lower section purification process: the rear inclined centrifugal fan also drives the impeller to rotate by the motor, air enters the air purifier through the lower air inlet at the rear side of the main casing, similarly, the air first passes through the air inlet grille to preliminarily filter large particles in the air, after filtration, the air enters the gradually expanding air cover, the air flow entering the gradually expanding air cover gradually expands, slows down the air flow speed, reduces the impact of the air flow on the filter element, and the three purification filter elements can increase the residence time of the air flow in the purification filter element, thereby improving the purification effect, the air filtered by the purification filter element enters the lower purification cavity, the centrifugal force generated by the rear inclined centrifugal fan accelerates and changes the air flow direction, the air flows through the air deflector and is guided to be discharged from the lower air outlets on both sides, the air outlet grille is also located at the opening of the lower air outlet, due to the arc-shaped inner surface of the V-shaped air deflector, the air flow is optimized, the vortex and energy loss are reduced, and the air flow is uniformly distributed to the entire air outlet structure, the problems of excessively high or low local air speed are avoided, and air flow noise is reduced.

[0017] The utility model has the following beneficial effects:

[0018] In the utility model, through the setting of the two purification cavities and the fan, the large air volume purification effect of bilateral air inlet and multidirectional air outlet is realized, the air purification efficiency and quality are effectively improved, the air flow path is optimized, and the energy loss and air flow noise are reduced.

[0019] In the utility model, through the setting of the air inlet assembly, the air flow speed is slowed down, the impact on the filter element is reduced, and the residence time of the air flow in the purification filter element is prolonged, and the air purification efficiency and the service life of the filter element are improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The utility model provides an overall split structure schematic diagram of an air purifier with an independent double air duct structure;

[0021] Figure 2 The utility model provides an overall side view and internal structure schematic diagram of an air purifier with an independent double air duct structure;

[0022] Figure 3 The utility model provides an overall internal side view structure schematic diagram of an air purifier with an independent double air duct structure;

[0023] Figure 4 The utility model provides an overall bottom view and internal structure schematic diagram of an air purifier with an independent double air duct structure.

[0024] In the figure: 1, main body shell; 101, upper air inlet; 102, upper air outlet; 103, lower air inlet; 104, lower air outlet; 2, air outlet grille; 3, fan housing; 4, front inclined double centrifugal fan; 5, rear inclined centrifugal fan; 6, air deflector; 601, flat plate; 602, V-shaped plate; 7, frame; 8, purification filter element; 9, gradually expanding air cover; 10, air inlet grille; 11, upper purification cavity; 12, lower purification cavity. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application.

[0026] Embodiment one

[0027] Reference Figures 1-4 An air purifier, comprising:

[0028] The main body shell 1 and the air inlet assembly and other components arranged on the main body shell 1 are ingeniously divided into two independent spaces, i.e., the upper purification cavity 11 and the lower purification cavity 12. A fan housing 3 is fixedly arranged in the interior of the upper purification cavity 11. Openings are formed in the two sides of the fan housing 3. The two openings are in communication with the upper purification cavity 11, so as to facilitate the front inclined double centrifugal fan 4 to suck in the air in the upper purification cavity 11 through the openings. The front inclined double centrifugal fan 4 is installed in the interior of the fan housing 3 (the front inclined double centrifugal fan 4 adopts a centrifugal fan, which is a common fluid conveying device. The centrifugal fan accelerates and changes the flow direction of the gas by using centrifugal force. The centrifugal fan drives the impeller to rotate by a motor, so that the gas enters the suction inlet in the center of the impeller. Under the action of the impeller, the gas obtains centrifugal force and moves outward along the radial direction of the impeller, and is pushed out at the outlet of the impeller. The double centrifugal fan refers to a centrifugal fan with two suction inlets. According to the structure of the impeller, the centrifugal fan can be divided into front inclined type, rear inclined type, radial type, etc. The front inclined double centrifugal fan 4 in the embodiment adopts a front inclined centrifugal fan with two suction inlets). Correspondingly, in the interior of the lower purification cavity 12, a rear inclined centrifugal fan 5 is arranged (the rear inclined centrifugal fan 5 adopts a centrifugal fan. The principle of the centrifugal fan is to accelerate and change the flow direction of the gas by using centrifugal force. The centrifugal fan drives the impeller to rotate by a motor, so that the gas enters the suction inlet in the center of the impeller. Under the action of the impeller, the gas obtains centrifugal force and moves outward along the radial direction of the impeller, and is pushed out at the outlet of the impeller. According to the structure of the impeller, the centrifugal fan can be divided into front inclined type, rear inclined type, radial type, etc. The rear inclined centrifugal fan 5 in the embodiment adopts a rear inclined centrifugal fan). The two fans are respectively responsible for the air circulation and purification in the upper and lower purification cavities.

[0029] The air inlet assembly is arranged on the main body shell 1, and the main purpose is to slow down the speed of the air flow and increase the residence time of the air flow, thereby reducing the impact on the purification filter element 8 (the purification filter element 8 is used to remove pollutants such as PM2.5, formaldehyde, bacteria, viruses and the like in the air, and to provide clean air, and generally the purification filter element 8 is a composite filter element composed of multiple layers of different materials, and each layer is used to filter different types of pollutants) and improve the air purification effect. Specifically, the air inlet assembly includes two upper air inlets 101 arranged on both sides of the main body shell 1 and one lower air inlet 103 arranged on the rear side. The interiors of the three air inlets are detachably provided with frames 7 by bolts, and the interiors of each frame 7 are further detachably provided with three purification filter elements 8. Such a design not only facilitates the replacement and cleaning of the purification filter elements 8, but also ensures the air purification effect. In addition, the outer side of each frame 7 is fixedly provided with a front small and rear large diverging air baffle 9 by screws. The design of the front narrow and rear wide diverging air baffle 9 can gradually expand the entering air flow, thereby slowing down the air flow speed and reducing the impact on the purification filter element 8. At the same time, since the air flow is fully diffused in the diverging air baffle 9, it can pass through the purification filter element 8 more uniformly, thereby further improving the air purification efficiency.

[0030] The present application can be used in the field of air purifiers with independent double air duct structures, and can also be used in other fields applicable to the present application.

[0031] Embodiment Two

[0032] On the basis of Embodiment One, Embodiment Two further comprises: an air purifier with independent double air duct structures, which is applied to the field of air purifiers with independent double air duct structures. The two upper air inlets 101 are in communication with the upper purification chamber 11, and the lower air inlet 103 is in communication with the lower purification chamber 12. In this way, air can enter the upper purification chamber 11 and the lower purification chamber 12 through the upper air inlets 101 and the lower air inlet 103 respectively for purification treatment. In order to ensure the quality of the entering air, air inlet grilles 10 are clamped at the openings of the two upper air inlets 101 and the lower air inlet 103 for preliminarily filtering out large particles in the air.

[0033] On the top of the main body shell 1, an upper air outlet 102 is arranged, which is in communication with the fan shell 3. The air purified by the upper purification chamber 11 can be accelerated and changed in flow direction by the centrifugal force generated by the front-inclined double centrifugal fan 4, and finally discharged from the upper air outlet 102. Meanwhile, two lower air outlets 104 are arranged on both sides of the main body shell 1, which are in communication with the lower purification chamber 12. The air purified by the lower purification chamber 12 can be accelerated and changed in flow direction by the centrifugal force generated by the rear-inclined centrifugal fan 5, and finally discharged from the two lower air outlets 104 after being guided by the air deflectors 6.

[0034] The air outlet grilles 2 are clamped at the openings of the upper air outlet 102 and the two lower air outlets 104 by the cooperation of buckles and slots, the air outlet grilles 2 are arranged to further arrange the air flow, make the air flow more uniform and stable, and prevent external sundries from entering the air purifier, and ensure the normal operation of the air purifier.

[0035] The air deflector 6 is fixedly arranged at the upper and lower sides of the rear-inclined centrifugal fan 5 in the lower purification cavity 12, the air deflector 6 includes a flat plate 601 and a V-shaped plate 602, the inner side plate surface of the V-shaped plate 602 is designed as an arc plate surface, such a design is helpful to optimize the air flow path, reduce vortex and energy loss, meanwhile, the air deflector 6 can uniformly distribute the air flow to the whole air outlet structure, avoid the problems of too high or too low local air speed, further reduce the air flow noise and improve the air purification efficiency.

[0036] However, as known by those skilled in the art, the working principles and wiring methods of the front-inclined double centrifugal fan 4 and the rear-inclined centrifugal fan 5 are common, which belong to conventional means or common general knowledge, and will not be described here, and those skilled in the art can select and arrange them according to their needs or convenience.

[0037] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An air cleaner of a separate double duct structure, characterized by, The utility model relates to a purification device, including: The inside of main body casing (1) is divided into upper purification cavity (11) and lower purification cavity (12) respectively, the inside of upper purification cavity (11) is fixedly provided with fan casing (3), the inside of fan casing (3) is provided with front inclined double centrifugal fan (4), the inside of lower purification cavity (12) is provided with rear inclined centrifugal fan (5); Air inlet assembly is set up on main body casing (1) and is used to slow down the speed increase of airflow and the residence time of airflow.

2. The air cleaner of claim 1, wherein, The air inlet assembly includes two upper air inlets (101) and a lower air inlet (103) on the two sides of the main body casing (1), the inside of the two upper air inlets (101) and the lower air inlet (103) is detachably provided with a frame (7), the inside of the three frames (7) is respectively provided with three purification filter elements (8), the outside of the three frames (7) is fixedly provided with a gradually expanding air baffle (9) with a small front and a large back.

3. An air purifier with an independent dual-duct structure according to claim 2, characterized in that, The two upper air inlets (101) are communicated with the upper purification cavity (11), the lower air inlet (103) is communicated with the lower purification cavity (12), the opening of the two upper air inlets (101) and the lower air inlet (103) is clamped with an air inlet grille (10).

4. The air cleaner of claim 1, wherein, The top of the main body casing (1) is provided with an upper air outlet (102), the upper air outlet (102) is communicated with the fan casing (3), the two sides of the main body casing (1) are provided with two lower air outlets (104), the two lower air outlets (104) are communicated with the lower purification cavity (12).

5. The air cleaner of claim 4, wherein, The opening of the upper air outlet (102) and the two lower air outlets (104) is clamped with an air outlet grille (2).

6. The air cleaner of claim 1, wherein, The upper and lower sides of the rear inclined centrifugal fan (5) of the lower purification cavity (12) are fixedly provided with air deflectors (6), the air deflectors (6) include flat plates (601) and V-shaped plates (602), the side of the V-shaped plate (602) close to the flat plate (601) is an inner plate surface, the side of the V-shaped plate (602) away from the flat plate (601) is an outer plate surface.

Images