Air purifier of double-fan up-down air inlet and middle air outlet structure

Abstract

The utility model provides an air purifier with a double-fan up-down air inlet and middle air outlet structure, which comprises a side shell arranged on the peripheral side of an air purifier main body, a first air inlet is formed in the upper part of the side shell, and a second air inlet is formed in the lower part of the side shell; a first draught fan and a second draught fan are arranged in the middle of the side face shell in a stacked mode. A first volute in the horizontal direction is arranged on the peripheral side face of the first fan, and a second volute in the horizontal direction is arranged on the peripheral side face of the second fan. The first volute and the second volute are each provided with two air outlets opposite in direction, and the air outlets are formed in the middle of the side face shell. Through a double-fan structure, the efficiency of the air purifier is improved by adopting an up-and-down air inlet mode; the air outlets are formed in the peripheral side surfaces of the first fan and the second fan, so that the height of the shell can be effectively reduced, and the miniaturization requirement of a user is met; and the middle of the side shell discharges air oppositely, so that direct blowing to a user can be avoided, and the user experience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of air purifiers of double-fan upper and lower air inlet middle part air outlet structure belongs to air purification equipment technical field. BACKGROUND

[0002] Traditional air purifier, generally using single motor single fan wheel mode, air purification efficiency is limited. When needing to improve air purification efficiency, it is often through the mode of increasing motor speed, and the increase of motor speed brings the increase of motor quality control requirement and noise.

[0003] Therefore, it is necessary to carry out in-depth research on the existing air purifier to solve the above problems. INVENTION CONTENTS

[0004] In order to overcome the above problems, the utility model provides a kind of air purifiers of double-fan upper and lower air inlet middle part air outlet structure, including the side shell of being located in the air purifier main body peripheral side, the first air inlet is equipped in the side shell upper portion, the second air inlet is equipped in the side shell lower portion;First fan and second fan are arranged in the side shell middle part in layers;The first volute is equipped in the horizontal direction on the side of the first fan, the second volute is equipped in the horizontal direction on the side of the second fan;The first volute and the second volute are equipped with two air outlets in opposite directions, and the air outlet is arranged in the middle part of the side shell.

[0005] In a preferred embodiment, a cylindrical first filter element is provided at the first air inlet, and a cylindrical second filter element is provided at the second air inlet;The first filter element, the first fan, the second fan and the second filter element are coaxially arranged in the vertical direction in the air purifier main body.

[0006] In a preferred embodiment, a fixing plate is transversely arranged in the middle part of the side shell, and the first fan and the second fan are fixed to the upper end face and the lower end face of the fixing plate respectively;The first fan and the second fan are mirror-symmetric along the fixing plate.

[0007] In a preferred embodiment, the first volute and the second volute are mirror-symmetric along the fixing plate.

[0008] In a preferred embodiment, the windward surface of the first volute is provided with a first air guide grille, and the windward surface of the second volute is provided with a second air guide grille;The first air guide grille is convexly arc-shaped towards the windward direction of the first volute, and the second air guide grille is convexly arc-shaped towards the windward direction of the second volute.

[0009] In a preferred embodiment, the first fan or the second fan comprises a motor and a backward centrifugal impeller mounted on the motor, and the motor is fixed on the fixed plate.

[0010] In a preferred embodiment, the back of the backward centrifugal impeller is provided with a sink groove, and the motor is built in the sink groove.

[0011] The air purifier has the beneficial effects including:

[0012] (1) effectively increasing the air purification amount per unit time;

[0013] (2) effectively compressing the internal space of the shell to meet the miniaturization needs of users;

[0014] (3) the air outlet in the middle of the side shell can avoid direct blowing to the user and improve the user experience;

[0015] (4) low power consumption and low use noise. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The drawing shows a cross-sectional structure schematic diagram of an air purifier according to a preferred embodiment of the present application;

[0017] Figure 2 The drawing shows a fan structure schematic diagram of an air purifier according to a preferred embodiment of the present application;

[0018] Figure 3 The drawing shows a backward centrifugal impeller structure schematic diagram of an air purifier according to a preferred embodiment of the present application.

[0019] EXPLANATION OF REFERENCE NUMBERS:

[0020] 1-side shell;

[0021] 21-first air inlet; 22-second air inlet;

[0022] 31-first fan; 32-second fan;

[0023] 41-first volute; 42-second volute; 411-first air guide grille; 421-second air guide grille;

[0024] 51-first filter element; 52-second filter element;

[0025] 6-air outlet;

[0026] 7-fixed plate;

[0027] 81-motor; 82-backward centrifugal impeller; 821-sink groove. DETAILED DESCRIPTION

[0028] The utility model is further explained in detail below by the drawings and embodiments. Through these explanations, the features and advantages of the utility model will become more apparent.

[0029] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations. Unless specifically indicated otherwise, the drawings are not necessarily drawn to scale.

[0030] According to the air purifier with the double-fan upper and lower air inlet and middle air outlet structure provided by the utility model, as shown in Figure 1 The side shell 1 is provided with a first air inlet 21 at the upper portion and a second air inlet 22 at the lower portion. The first fan 31 and the second fan 32 are arranged in layers in the middle portion of the side shell 1. The side surface of the first fan 31 is provided with a first volute 41 in the horizontal direction, and the side surface of the second fan 32 is provided with a second volute 42 in the horizontal direction. The first volute 41 and the second volute 42 are each provided with two air outlets 6 in opposite directions, and the air outlets 6 are arranged in the middle portion of the side shell 1.

[0031] In the utility model, the first fan 31 and the second fan 32 are arranged in layers in the middle portion of the side shell 1. Through the double-fan structure, the upper and lower air inlets and the middle air outlet are realized. First, the double-air inlet structure can increase the air purification amount per unit time. Second, the air outlets 6 are arranged on the side surface of the first fan 31 and the second fan 32, which can effectively compress the height of the shell and meet the miniaturization needs of users. Third, the air outlets in the middle portion of the side shell 1 can avoid direct blowing to users and improve the user experience.

[0032] Specifically, as shown in Figure 1 When the air purifier is started, the airflow generated by the first fan 31 flows into the first volute 41 through the first air inlet 21 of the side shell 1 and flows out through the air outlets 6 on the left and right sides of the first volute 41. The airflow generated by the second fan 32 flows into the second volute 42 through the second air inlet 22 of the side shell 1 and flows out through the air outlets 6 on the left and right sides of the second volute 42. This embodiment realizes the upper and lower air inlets and the left and right air outlets in the middle portion of the air purifier.

[0033] In a preferred embodiment, as Figure 1As shown, the first air inlet 21 is provided with a cylindrical first filter core 51, and the second air inlet 22 is provided with a cylindrical second filter core 52; the first filter core 51, the first fan 31, the second fan 32 and the second filter core 52 are coaxially arranged in the vertical direction in the air purifier main body. Specifically, the first filter core 51 and the second filter core 52 respectively filter the air entering the housing from the first air inlet 21 and the second air inlet 22, and discharge the filtered air from the air outlet 6 to achieve the air purification effect. Further, the first filter core 51 or the second filter core 52 is a single filter structure or a combination of multiple filter structures. The specific material of the first filter core 51 or the second filter core 52 is not limited in the present application, and those skilled in the art can select the commonly used filter material according to actual needs. In this embodiment, the first filter core 51 or the second filter core 52 is a composite filter structure composed of hepa filter paper and carbon bricks, which has good air purification effect.

[0034] In a preferred embodiment, as shown in Figure 1 As shown, the middle part of the side shell 1 is transversely provided with a fixed plate 7, and the first fan 31 and the second fan 32 are respectively fixed to the upper end face and the lower end face of the fixed plate 7; the first fan 31 and the second fan 32 are mirror symmetrical along the fixed plate 7.

[0035] Specifically, the fixed plate 7 is installed in the middle part of the side shell 1 and transversely arranged between the first fan 31 and the second fan 32, and forms part of the two volute air ducts, thereby further compressing the overall height of the air purifier. The first fan 31 and the second fan 32 are mirror symmetrical distributed, so that the airflow generated by the first fan 31 and the second fan 32 converges along the vertical direction to the first volute 41 and the second volute 42 in the middle part of the side shell 1, thereby avoiding the problem of airflow interference between the two fans, and maximizing the superposition of purification efficiency.

[0036] Further, in order to ensure the stability of the air purifier, the fixed plate 7 is usually provided as a metal reinforcing plate.

[0037] In a preferred embodiment, as shown in Figure 1 The first volute 41 and the second volute 42 are mirror symmetrical along the fixed plate 7. Specifically, the first volute 41 and the second volute 42 are both provided with two air outlets 6 with opposite directions in the horizontal direction, and the air outlets 6 of the first volute 41 and the second volute 42 are on the opposite sides of the side shell 1, thereby realizing left and right air outlet. In the use process, the left and right air outlets 6 are kept away from the area where the user frequently moves, so as to avoid direct blowing to the user.

[0038] In a preferred embodiment, as shown in Figure 1As shown, the windward surface of the first volute 41 is provided with a first air guide grille 411, and the windward surface of the second volute 42 is provided with a second air guide grille 421; the first air guide grille 411 is protruded in an arc shape towards the windward direction of the first volute 41, and the second air guide grille 421 is protruded in an arc shape towards the windward direction of the second volute 42. The first air guide grille 411 and the second air guide grille 421 respectively guide the air entering the first volute 41 and the second volute 42, so as to reduce the wind dryness.

[0039] In a preferred embodiment, as shown in Figure 2 、 Figure 3 The first fan 31 or the second fan 32 comprises a motor 81 and a backward centrifugal impeller 82 installed on the motor 81, and the motor 81 is fixed on the fixed plate 7.

[0040] In a preferred embodiment, as shown in Figure 2 The back surface of the backward centrifugal impeller 82 is provided with a sunken groove 821, and the motor 81 is built in the sunken groove 821. In this embodiment, the motor 81 is built in the sunken groove 821 on the back surface of the backward centrifugal impeller 82, and the motor 81 does not occupy extra space in the vertical direction, further compressing the overall height of the air purifier.

[0041] In the description of the present application, it should be pointed out that the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship based on the working state of the present application, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present application, it should be pointed out that unless otherwise explicitly specified and limited, the terms "mounting", "fixing", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] The above describes the present application in combination with the preferred embodiments, but these embodiments are only exemplary and serve only to illustrate. On this basis, various substitutions and improvements can be made to the present application, which all fall within the scope of protection of the present application.

Claims

1. An air purifier with a double-fan up-and-down air inlet and middle air outlet structure, characterized in that: a side shell (1) is arranged on the side of the main body of the air purifier, a first air inlet (21) is arranged on the upper part of the side shell (1), and a second air inlet (22) is arranged on the lower part of the side shell (1); a first fan (31) and a second fan (32) are arranged in layers in the middle part of the side shell (1); a first volute (41) in the horizontal direction is arranged on the side surface of the first fan (31), and a second volute (42) in the horizontal direction is arranged on the side surface of the second fan (32); the first volute (41) and the second volute (42) are both provided with two air outlets (6) in opposite directions, and the air outlets (6) are arranged in the middle part of the side shell (1).

2. The air purifier according to claim 1, characterized in that: a first filter core (51) in the shape of a cylinder is arranged at the first air inlet (21), and a second filter core (52) in the shape of a cylinder is arranged at the second air inlet (22); the first filter core (51), the first fan (31), the second fan (32), and the second filter core (52) are arranged coaxially in the vertical direction in the main body of the air purifier.

3. The air purifier according to claim 1 or 2, characterized in that: a fixed plate (7) is arranged in the transverse direction in the middle part of the side shell (1), and the first fan (31) and the second fan (32) are fixed to the upper end surface and the lower end surface of the fixed plate (7) respectively; the first fan (31) and the second fan (32) are mirror-symmetric along the fixed plate (7).

4. The air purifier according to claim 3, characterized in that: the first volute (41) and the second volute (42) are mirror-symmetric along the fixed plate (7).

5. The air purifier according to claim 4, characterized in that: a first air guide grille (411) is arranged on the windward surface of the first volute (41), and a second air guide grille (421) is arranged on the windward surface of the second volute (42); the first air guide grille (411) is convex in an arc shape in the windward direction of the first volute (41), and the second air guide grille (421) is convex in an arc shape in the windward direction of the second volute (42).

6. The air purifier according to claim 3, characterized in that: the first fan (31) or the second fan (32) comprises a motor (81) and a backward centrifugal impeller (82) mounted on the motor (81), and the motor (81) is fixed to the fixed plate (7).

7. The air purifier according to claim 6, characterized in that: a sink (821) is arranged on the back surface of the backward centrifugal impeller (82), and the motor (81) is embedded in the sink (821). ​ ​ ​ ​ ​ ​ ​

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