Air purification structure

Abstract

The utility model relates to the technical field of flue gas purification, and particularly discloses an air purification structure. The air purification structure comprises a shell, an air inlet and an air outlet are formed in the shell and are oppositely arranged, the air inducing unit comprises a volute and a centrifugal machine, the volute is provided with two air inducing openings and an exhaust opening, the two air inducing openings are formed in the two sides of the volute correspondingly, and the centrifugal machine is arranged in the volute. The connecting line of the two air inducing openings is perpendicular to the connecting line of the air inlet and the air outlet, and the air outlet is right opposite to the air outlet. The connecting line of the two induced air ports is perpendicular to the connecting line of the air inlet and the air outlet, so that the mounting position of the fan is changed when air enters from the two sides of the fan to guarantee the air inlet efficiency, namely, the fan laterally faces the stove, the sectional area of the air purification structure directly facing the stove is smaller, and the service life of the stove is prolonged. Therefore, the dining space occupied by the air purification structure is reduced, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas purification, in particular to an air purification structure. Background Art

[0002] With economic development and rising living standards, camping and barbecues, home barbecues, and hot pots have become popular. However, as cooking environments are further removed from traditional range hoods, the resulting fumes and odors pose a pressing challenge. Currently, there are relatively few tabletop range hoods on the market, and most of them use axial-flow negative pressure fans, which generate low negative pressure and high speeds, leading to high noise levels. A small number of products use fans, but these all have single-sided air intake, underutilizing air intake efficiency. Furthermore, the front-facing air intake of the fan requires the fan to face the stove, occupying a wider dining area.

[0003] Therefore, the existing technology still needs to be improved and developed. Utility Model Content

[0004] The utility model discloses an air purification structure, which is used to improve the problem that the existing desktop range hood cannot balance the noise and the dining space occupied by the range hood.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model discloses an air purification structure, comprising:

[0007] a housing, wherein an air inlet and an air outlet are oppositely arranged on the housing;

[0008] A filter unit is installed in the housing, and the filter unit is installed at the air inlet;

[0009] an air induction unit installed in the housing, the air induction unit comprising a volute and a fan, the volute being provided with an air inlet and an air outlet, the air inlet being arranged on both sides of the volute, the line connecting the two air inlets being perpendicular to the line connecting the air inlet and the air outlet, and the air outlet being directly opposite the air outlet;

[0010] A controller is used to control the air induction unit.

[0011] Preferably, a first curved surface block and a second curved surface block are provided in the shell, and the first curved surface block and the second curved surface block are tightly attached to the outer side wall of the volute.

[0012] Preferably, a volute tongue is provided at the air outlet of the volute.

[0013] Preferably, the filter unit includes a fixed shell, a first filter screen and a second filter screen, the first filter screen and the second filter screen are mounted on the fixed shell, and the fixed shell is mounted at the air inlet of the housing.

[0014] Preferably, the filter unit further includes an oil collecting box, which is slidably connected to the fixed shell and is arranged below the first filter screen.

[0015] Preferably, the fixed shell includes a first part and a second part, the first part is snap-connected to the shell, the second part is snap-connected to the first part, and the first filter screen and the second filter screen are installed between the first part and the second part.

[0016] Preferably, a spring piece is provided on the top of the first part, a positioning block is provided on the bottom of the first part, and a slot and a positioning hole are provided on the shell, the slot is used to clamp the spring piece, and the positioning hole is used to install the positioning block.

[0017] Preferably, the filter unit further includes an oil filter oblique block, which is fixedly connected to the first part and is arranged above the oil collecting box. The oil filter oblique block is used to guide the falling oil from the first filter screen and the second filter screen.

[0018] Preferably, the air purification structure further comprises an air intake grille, which is arranged at the air inlet of the shell and downstream of the filter unit.

[0019] Preferably, the air purification structure further includes an air outlet grille, which is arranged at the air outlet of the shell.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The air purification structure disclosed in the present invention includes a shell, an air inlet and an air outlet are provided on the shell, the air inlet and the air outlet are arranged opposite to each other, and an air induction unit includes a volute and a centrifuge, the volute is provided with an air inlet and an air exhaust port, there are two air inlets, the two air inlets are respectively provided on both sides of the volute, and the line connecting the two air inlets is perpendicular to the line connecting the air inlet and the air outlet, and the air exhaust port is directly opposite the air outlet. By setting the line connecting the two air inlets perpendicular to the line connecting the air inlet and the air outlet, and thus ensuring the air intake efficiency while the air intake efficiency is ensured on both sides of the fan, the installation position of the fan is changed, that is, the fan faces the stove sideways, so that the cross-sectional area of the air purification structure directly facing the stove is smaller, thereby reducing the occupation of the dining space by the air purification structure and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1A schematic structural diagram of an air purification structure provided by an embodiment of the present utility model;

[0023] Figure 2 A schematic structural diagram of an air purification structure provided by an embodiment of the present utility model;

[0024] Figure 3 A schematic diagram of the structure inside the housing provided by one embodiment of the present utility model;

[0025] Figure 4 A schematic structural diagram of an air induction unit provided in one embodiment of the present invention;

[0026] Figure 5 A side view of an air induction unit provided in one embodiment of the present utility model;

[0027] Figure 6 A schematic structural diagram of a filter unit provided in one embodiment of the present invention;

[0028] Figure 7 A schematic structural diagram of a filter unit provided in one embodiment of the present invention;

[0029] Figure 8 An exploded view of a filter unit provided in one embodiment of the present invention;

[0030] Figure 9 This is a cross-sectional view of a filter unit provided in one embodiment of the present invention.

[0031] Explanation of the main component symbols: 10-housing; 11-air inlet; 12-air outlet; 13-first curved block; 14-second curved block; 15-slot; 16-positioning hole; 17-air inlet grille; 18-air outlet grille; 20-filter unit; 21-fixed shell; 211-first part; 2111-shrapnel; 2112-positioning block; 212-second part; 22-first filter; 23-second filter; 24-oil collecting box; 25-oil filter oblique block; 30-draft unit; 31-volute; 32-fan; 33-air inlet; 34-air outlet; 35-volute tongue; 40-controller. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] In this utility model, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe the utility model and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0034] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0035] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0036] Furthermore, the terms "first," "second," etc., are primarily used to distinguish between different devices, elements, or components (which may or may not be of the same type and configuration), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.

[0037] The technical solution of the present utility model will be further described below in conjunction with the embodiments and drawings.

[0038] Example

[0039] Since the existing desktop range hood cannot balance the noise of the range hood and the dining space occupied by the range hood, it is impossible to occupy a smaller dining space while maintaining a lower noise level.

[0040] Therefore, this application discloses an air purification structure, referring to Figure 1-2 , which includes a housing 10, on which an air inlet 11 and an air outlet 12 are relatively low arranged. Figure 3-4, a filter unit 20, an air induction unit 30 and a controller 40 are installed on the inner wall of the housing 10. The filter unit 20 is installed at the air inlet 11, and the filter unit 20 is used to filter the smoke entering the housing 10. The air induction unit 30 includes a volute 31 and a fan 32. The volute 31 is provided with an air inlet 33 and an air outlet 34, wherein the air inlet 33 is provided on both sides of the volute 31, and the line connecting the two air inlets 33 is perpendicular to the line connecting the air inlet 11 and the air outlet 12, and the air outlet 34 is directly opposite to the air outlet 12. The controller 40 is electrically connected to the air induction unit 30, and is used to control the start and stop of the air induction unit 30.

[0041] In one embodiment of the present invention, two air inlets 33 are provided, so that air enters on both sides of the fan 32 to ensure the air intake efficiency. At the same time, the installation position of the fan 32 is changed, that is, the fan 32 faces the stove sideways, so that the cross-sectional area of the air purification structure facing the stove is smaller, thereby reducing the occupation of the dining space by the air purification structure and improving the user experience.

[0042] Specifically, in the present application, by providing two air inlets 33, the installation method of the centrifugal fan 32 is changed, so that the air purification structure can use a centrifugal fan 32 with less noise while also making the air purification structure occupy a smaller dining space.

[0043] In one embodiment of the present invention, referring to Figure 3-5 The housing 10 is provided with a first curved surface block 13 and a second curved surface block 14, and the first curved surface of the first curved surface block 13 is concentric with the curved surface of the volute 31, and the second curved surface of the second curved surface block 14 is concentric with the curved surface of the volute 31. Figure 5 The first curved surface and the second curved surface are both in close contact with the outer wall of the volute 31, so that the volume of the non-air inlet 33 position between the volute 31 and the shell 10 is as small as possible, so that as little vortex as possible is generated in the shell 10, thereby reducing noise.

[0044] In one embodiment of the present invention, referring to Figure 5 The air induction unit 30 also includes a volute tongue 35, which is installed at the corner of the exhaust port 34 of the volute 31. By setting the volute tongue 35, the air flow at the exhaust port 34 of the volute 31 is diverted and smoothly guided to the exhaust port, avoiding turbulence and reducing noise.

[0045] In one embodiment of the present invention, referring to Figure 4 and Figure 5 The air inlet 11 is opposite to the arc-shaped volute 31. Under the guidance of the volute 31, the smoke is naturally dispersed into the air inlets 33 on both sides of the volute 31, thereby making the smoke flow more smoothly inside the shell 10.

[0046] In one embodiment of the present invention, referring to Figure 6-Figure 9 The filter unit 20 includes a fixed housing 21, a first filter screen 22, and a second filter screen 23. Both the first filter screen 22 and the second filter screen 23 are mounted on the fixed housing 21, which is mounted at the air inlet 11 of the housing 10. When smoke enters the air inlet 11, it is first filtered by the first filter screen 22 and then by the second filter screen 23 before entering the housing 10.

[0047] In one embodiment of the present invention, the first filter 22 is a porous layer supported by an alloy material, which is used to condense high-temperature oil smoke to improve the oil smoke removal rate and extend the life of the subsequent second filter 23.

[0048] In one embodiment of the present invention, the second filter 23 is made of a composite folded polymer material, such as glass fiber, PP melt-blown, PET, PE, MOF, etc.; its main function is to adsorb and intercept oil smoke particles and protect the subsequent air induction unit 30.

[0049] In one embodiment of the present invention, referring to Figure 8 and Figure 9 The filter unit 20 further includes an oil collecting box 24, which is slidably connected to the lower portion of the fixed housing 21. The first filter screen 22 and the second filter screen 23 are both disposed above the oil collecting box 24. When a certain amount of oil accumulates on the first filter screen 22 and the second filter screen 23, the oil falls under the action of gravity and is collected by the oil collecting box 24.

[0050] In one embodiment of the present invention, referring to Figure 8 and Figure 9 The fixed housing 21 includes a first portion 211 and a second portion 212. The first portion 211 is snap-connected to the housing 10, and the second portion 212 is snap-connected to the first portion 211. The first filter 22 and the second filter 23 are mounted between the first portion 211 and the second portion 212. Due to the snap-connected connection between the first portion 211 and the second portion 212, when the first filter 22 needs to be cleaned or the second filter 23 needs to be replaced, the first filter 22 and the second filter 23 can be removed by simply opening the snap-connected connection between the first portion 211 and the second portion 212, facilitating subsequent maintenance.

[0051] In one embodiment of the present invention, referring to Figure 6 and Figure 7 A spring piece 2111 is provided on the top of the first part 211, and a positioning block 2112 is provided on the bottom of the first part 211. At the same time, a slot 15 is provided on the housing 10 corresponding to the spring piece 2111, and a positioning hole 16 is provided corresponding to the positioning block 2112.

[0052] When the filter unit 20 needs to be installed, it is only necessary to insert the positioning block 2112 into the positioning hole 16, bend the spring piece 2111 and then push the filter unit 20 to combine the spring piece 2111 and the slot 15, thereby combining the filter unit 20 and the housing 10.

[0053] When the filter unit 20 needs to be separated from the housing 10, the spring piece 2111 is first bent to release the engagement between the spring piece 2111 and the housing slot 15, and then the spring piece 2111 is pulled outward to separate the filter unit 20 from the housing 10.

[0054] In one embodiment of the present invention, the filter unit 20 is further provided with an oil filter inclined block 25. Figure 8 and Figure 9 It can be seen that the oil filter oblique block 25 is fixedly connected to the first part 211, and two oil filter oblique blocks 25 are provided. The two oil filter oblique blocks 25 form an inverted "eight"-shaped oil filter groove. The two oil filter oblique blocks 25 are used in combination to guide the oil stains left on the first filter screen 22 and the second filter screen 23 into the oil collecting box 24.

[0055] In one embodiment of the present invention, referring to Figure 6 or Figure 7 , further comprising an air intake grille 17, which is disposed at the air inlet 11 of the housing 10 and downstream of the filter unit 20. After the smoke filtered by the filter unit 20 passes through the air intake grille 17, the air intake grille 17 evenly distributes the intake airflow, thereby preventing aerodynamic noise caused by air turbulence.

[0056] In one embodiment of the present invention, referring to Figure 2 or Figure 4 , further comprising an air outlet grille 18, which is disposed at the air outlet 12 of the housing 10. After the exhaust gas from the induced draft unit 30 passes through the air outlet grille 18, the air outlet grille 18 evenly distributes the incoming air flow to prevent aerodynamic noise caused by air turbulence.

[0057] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and the utility model concept of the present invention, and all these changes or substitutions should fall within the scope of protection of the present invention.

Claims

1. An air purification structure, characterized in that: include: a housing, wherein an air inlet and an air outlet are oppositely arranged on the housing; A filter unit is installed in the housing, and the filter unit is installed at the air inlet; an air induction unit installed in the housing, the air induction unit comprising a volute and a fan, the volute being provided with an air inlet and an air outlet, the air inlet being arranged on both sides of the volute, the line connecting the two air inlets being perpendicular to the line connecting the air inlet and the air outlet, and the air outlet being directly opposite the air outlet; A controller is used to control the air induction unit.

2. An air purification structure according to claim 1, characterized in that: A first curved surface block and a second curved surface block are provided in the shell, and the first curved surface block and the second curved surface block are closely attached to the outer side wall of the volute.

3. An air purification structure according to claim 1, characterized in that: A volute tongue is provided at the air outlet of the volute.

4. An air purification structure according to claim 1, characterized in that: The filter unit includes a fixed shell, a first filter screen and a second filter screen. The first filter screen and the second filter screen are installed on the fixed shell. The fixed shell is installed at the air inlet of the housing.

5. An air purification structure according to claim 4, characterized in that: The filter unit further includes an oil collecting box, which is slidably connected to the fixed shell and is arranged below the first filter screen.

6. An air purification structure according to claim 5, characterized in that: The fixed shell includes a first part and a second part, the first part is snap-connected to the shell, the second part is snap-connected to the first part, and the first filter screen and the second filter screen are installed between the first part and the second part.

7. An air purification structure according to claim 6, characterized in that: A spring piece is provided on the top of the first part, a positioning block is provided on the bottom of the first part, and a slot and a positioning hole are provided on the shell. The slot is used to clamp the spring piece, and the positioning hole is used to install the positioning block.

8. An air purification structure according to claim 6, characterized in that: The filter unit also includes an oil filter oblique block, which is fixedly connected to the first part. The oil filter oblique block is arranged above the oil collecting box and is used to guide the falling oil from the first filter screen and the second filter screen.

9. The air purification structure according to claim 1, characterized in that: It also includes an air intake grille, which is arranged at the air inlet of the shell and is arranged downstream of the filter unit.

10. The air purification structure according to claim 1, characterized in that: It also includes an air outlet grille, which is arranged at the air outlet of the shell.

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