Range hood with multiple filtering functions

Abstract

A range hood with multiple filtering functions comprises a shell, the front end of the shell is concave inwards to form a smoke suction cavity, and the range hood is characterized in that a partition plate is installed on the smoke suction cavity in a covering mode, an air cabinet is arranged on the top of the shell, a fan module is installed in the air cabinet and communicated with the smoke suction cavity, an air suction opening is formed in the partition plate, and the air suction opening is communicated with the smoke suction cavity. A supporting net is arranged on the exhaust inlet, a filter element covers the surface of the supporting net, and a filter screen covers the surface of the filter element; and a panel is mounted outside the partition plate in a covering manner. The range hood has the beneficial effects that the supporting net, the filter element filter cotton layer, the non-woven fabric layer and the fiber net layer of various types and the covering filter net are arranged on the exhaust inlet, so that multi-stage fine filtration of oil smoke is realized. The multi-layer structure effectively intercepts grease and particles, the filtering efficiency is remarkably improved, and environmental pollution is reduced.

Description

Technical Field

[0001] The utility model relates to a range hood, in particular to a range hood with multiple filtering functions. Background Art

[0002] In the field of kitchen fume purification equipment, the design and function of range hoods have always been the key to improving the quality of home kitchen environment. Although traditional range hoods play an important role in daily life, their filtration systems, especially the design of the filter net, still have significant deficiencies, which directly affects their efficiency and user satisfaction.

[0003] On the one hand, the mesh size of the filter used in many range hoods is too large, which can avoid frequent blockages, but at the same time it also results in insufficient capture of smaller particles and grease in the smoke. The direct consequence of this design is that a large number of fine grease particles cannot be effectively intercepted and are discharged into the outdoor environment, which has a negative impact on air quality. In addition, these tiny particles in the smoke may also flow back into the room, posing a threat to the living environment and human health.

[0004] On the other hand, if the filter mesh is too small, although it can significantly improve the filtering effect and capture more grease and particles, it also greatly increases the risk of filter clogging. Once the filter is clogged, the suction power of the range hood will be greatly reduced, affecting the smoke extraction efficiency. At the same time, it will also increase the burden on the fan operation, resulting in higher energy consumption and noise. The clogged filter is difficult to clean, which not only increases the user's maintenance cost, but also affects the user's experience. Therefore, it is necessary to make further improvements. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide a range hood with multiple filtering functions that is simple in structure, easy to use, improves the oil fume purification effect, reduces environmental pollution, and improves the user's operation and maintenance experience.

[0006] The purpose of the utility model is achieved in the following way: a range hood with multiple filtering functions, which includes an outer shell, the front end of the outer shell is concave to form a smoking chamber, and is characterized in that: a partition is covered and installed on the smoking chamber, a wind cabinet is arranged on the top of the outer shell, a fan module is installed in the wind cabinet and is connected to the smoking chamber, an air suction port is opened on the partition, a support net is arranged on the air suction port, a filter element is covered on the surface of the support net, and a filter net is covered on the surface of the filter element; a panel is also covered and installed outside the partition, a condensation chamber is formed by hollowing out between the panel and the partition, the air suction port is connected to the condensation chamber, a smoke inlet is arranged on the panel and is connected to the condensation chamber, and when the range hood is working, oil smoke enters the condensation chamber from the smoke inlet in sequence, passes through the filter net and the filter element, passes through the support net and the air suction port, enters the smoking chamber, and is finally sucked and discharged by the fan module.

[0007] Specifically: the air suction port is in the shape of a long strip and penetrates the partition plate, and the supporting net is a partition bar that is horizontally and vertically overlapped on the air suction port, and the partition bars are cross-woven into a grille net.

[0008] Specifically: the air inlet is divided into a plurality of filter areas, and corner buckles are arranged at the four corners of the filter area, and the four sharp corners of the filter element are clamped and fixed in the corner buckles.

[0009] Specifically: the filter element is a filter cotton layer.

[0010] Specifically: the filter element is a non-woven fabric layer.

[0011] Specifically: the filter element is a fiber mesh layer.

[0012] Specifically: the filter screen is an aluminum screen frame.

[0013] Specifically: the smoke inlet is provided with an upper smoking port on the top of the panel, the upper smoking port is communicated with the condensation chamber, a cover plate is movably hingedly installed in the upper smoking port, and the cover plate is driven to open and close by an electric mechanism.

[0014] Specifically: the smoke inlet is an upper smoke inlet and a lower smoke inlet arranged at the top and the bottom of the panel, and the upper smoke inlet and the lower smoke inlet are connected to the condensation chamber.

[0015] Specifically: air guide plates are fixedly installed in the upper smoking opening and the lower smoking opening.

[0016] The beneficial effects of the utility model are as follows: 1. The structure is simple, the production cost is low, and the market competitiveness is improved. 2. The invention realizes multi-level fine filtration of oil smoke by arranging a support net and various types of filter element filter cotton layers, non-woven fabric layers, fiber mesh layers, and covering filter nets on the air inlet. This multi-layer structure effectively intercepts grease and particles, significantly improves the filtration efficiency, and reduces environmental pollution.

[0017] 3. The present invention optimizes the air flow path and enhances the oil fume separation effect by forming a condensation cavity by covering the panel outside the partition and carefully designing the upper and lower smoking ports.

[0018] 4. The air inlet is designed to be long and the filter element is fixed in the filter area by a corner buckle, which makes it easy and quick to remove and replace the filter element, simplifies the maintenance process and reduces the difficulty of operation for users.

[0019] 5. The filter element can be replaced in a disposable manner, which is convenient and quick to replace and has low cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a diagram of the cover in the first embodiment of the utility model in an open state.

[0021] Figure 2 This is a diagram of the cover plate in the first embodiment of the present invention in a closed state.

[0022] Figure 3 It is a schematic structural diagram of the first embodiment of the utility model.

[0023] Figure 4 It is a schematic diagram of the structure behind the hidden panel in the utility model.

[0024] Figure 5 , 6 It is a schematic diagram of the structure behind the hidden panel and filter screen in the utility model.

[0025] Figure 7 For the utility model Figure 6 A magnified view of the local structure.

[0026] Figure 8 This is a schematic diagram of the filter element structure of the utility model.

[0027] Explanation of the reference numerals: 1 - housing; 10 - corner buckle; 11 - upper smoking port; 12 - cover plate; 13 - smoking port; 14 - air guide plate; 2 - partition plate; 3 - wind cabinet; 4 - air inlet; 5 - support net; 6 - filter element; 7 - filter screen; 8 - panel; 9 - condensation chamber. DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with the accompanying drawings. A range hood with multiple filtering functions, comprising a shell 1, the front end of the shell 1 is concave to form a smoking chamber, characterized in that: the smoking chamber is covered with a partition 2, a wind cabinet 3 is arranged on the top of the shell 1, a fan module is installed in the wind cabinet 3 and is connected to the smoking chamber, an air inlet 4 is opened on the partition 2, a support net 5 is arranged on the air inlet 4, a filter element 6 is covered on the surface of the support net 5, and a filter net 7 is covered on the surface of the filter element 6; a panel 8 is also covered and installed outside the partition 2, and a condensation chamber 9 is formed by hollowing out between the panel 8 and the partition 2, the air inlet 4 is connected to the condensation chamber 9, and a smoke inlet is arranged on the panel 8 and is connected to the condensation chamber 9. When the range hood is working, the oil smoke enters the condensation chamber 9 from the smoke inlet in turn, passes through the filter net 7 and the filter element 6, passes through the support net 5 and the air inlet 4, enters the smoking chamber, and is finally sucked and discharged by the fan module.

[0029] The air inlet 4 is in the shape of a long strip and penetrates the partition plate 2. The support net 5 is a partition bar that is horizontally and vertically overlapped on the air inlet 4. The partition bars are cross-woven into a grille net.

[0030] The air inlet 4 is divided into a plurality of filter areas, and corner buckles 10 are provided at the four corners of the filter areas. The four sharp corners of the filter element 6 are fixed in the corner buckles 10 .

[0031] The filter element 6 is a filter cotton layer.

[0032] The filter element 6 is a non-woven fabric layer.

[0033] The filter element 6 is a fiber mesh layer.

[0034] The filter screen 7 is an aluminum screen frame.

[0035] The smoke inlet is provided with an upper smoking port 11 on the top of the panel 8, the upper smoking port 11 is communicated with the condensation chamber 9, a cover plate 12 is movably hingedly installed in the upper smoking port 11, and the cover plate 12 is driven to open and close by an electric mechanism.

[0036] The smoke inlet is an upper smoke inlet 11 and a lower smoke inlet 13 arranged at the top and the bottom of the panel 8 . The upper smoke inlet 11 and the lower smoke inlet 13 are in communication with the condensation chamber 9 .

[0037] Wind guide plates 14 are fixedly installed in the upper smoking opening 11 and the lower smoking opening 13 .

[0038] Working principle: When the range hood is started, the fan module starts to run, generating negative pressure, which forces the fumes in the kitchen to enter the condensation chamber through the smoke inlet. The range hood can absorb fumes through the smoke inlet at the top or bottom. These smoke inlets are opened and closed by an electric mechanism through a movable hinged cover plate, and are opened and closed according to cooking needs. Among them, since the condensation chamber has a large volume and a large inner surface area, when the fumes enter, the larger inner surface increases the contact area with the fumes, so that the grease in the fumes condenses and liquefies, achieving the first level of fumes separation effect, thereby reducing the subsequent filtration burden.

[0039] The condensed oil smoke then enters the multi-stage filtration area. First, the oil smoke passes through the filter screen 7, which is a layer of aluminum mesh frame that can intercept more large particles. Then, the oil smoke passes through the filter element 6 set on the support net 5. This layer may be a filter cotton layer, a non-woven fabric layer or a fiber mesh layer according to the specific implementation method, which is used to capture finer particles and grease. Since the filter element is soft in texture, a support net is specially provided on the air intake port 4 in this case, and the filter element is covered as a whole on the support net, which ensures its larger windward surface and prevents the filter element from collapsing due to lack of support.

[0040] Further: The cleaned air is sucked into the fan module through the air suction port 4. The air suction port is designed to be long and strip-shaped, covering the entire width of the partition 2, ensuring the uniform distribution of suction. In addition, the air suction port is divided into several filtering areas, each area is provided with a corner buckle 10, so that the filter element is fixed more firmly, ensuring the filtering effect while facilitating the rapid replacement and maintenance of the filter element. Since the oil smoke at the front end is filtered by the condenser filter, the grease entering the filter element is greatly reduced, thereby reducing the frequency of filter element replacement and extending its service life. In addition, when the filter element is completely blocked, it only needs to be replaced as a whole, and the production cost of the filter element is low, which also reduces the user's use cost.

[0041] Finally, the purified air is discharged to the outside through the wind cabinet 3. This process not only improves the indoor air quality, but also contributes to environmental protection by reducing the emission of grease and particulate matter.

[0042] Compared with traditional technologies, the design of the range hood of the present invention comprehensively utilizes condensation technology and multi-stage filtration technology, optimizes the capture and purification process of oil smoke, and significantly improves the purification efficiency and user convenience. Through this working principle, the range hood can not only effectively remove kitchen oil smoke, but also reduce the maintenance burden and provide a more comfortable and healthy cooking environment, so it can be widely promoted and used.

[0043] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A range hood with multiple filtering functions, comprising a housing (1), the front end of the housing (1) being concave to form a smoking chamber, characterized in that: The smoking chamber is covered with a partition (2), a wind cabinet (3) is arranged on the top of the shell (1), a fan module is installed in the wind cabinet (3) and is connected to the smoking chamber, an air inlet (4) is opened on the partition (2), a support net (5) is arranged on the air inlet (4), a filter element (6) is covered on the surface of the support net (5), and a filter net (7) is covered on the surface of the filter element (6); a panel (8) is also covered on the outside of the partition (2), a condensation chamber (9) is formed by hollowing out between the panel (8) and the partition (2), the air inlet (4) is connected to the condensation chamber (9), and a smoke inlet is arranged on the panel (8) and is connected to the condensation chamber (9).

2. The range hood with multiple filtering functions according to claim 1, characterized in that: The air suction port (4) is arranged in the shape of a long strip and penetrates the partition plate (2); the supporting net (5) is a partition bar that overlaps the air suction port (4) horizontally and vertically, and the partition bars are interlaced to form a grille net.

3. The range hood with multiple filtering functions according to claim 1, characterized in that: The air inlet (4) is divided into a plurality of filter areas, and corner buckles (10) are provided at the four corners of the filter areas. The four sharp corners of the filter element (6) are fixed in the corner buckles (10).

4. The range hood with multiple filtering functions according to claim 1, characterized in that: The filter element (6) is a filter cotton layer.

5. The range hood with multiple filtering functions according to claim 1, characterized in that: The filter element (6) is a non-woven fabric layer.

6. The range hood with multiple filtering functions according to claim 1, characterized in that: The filter element (6) is a fiber mesh layer.

7. The range hood with multiple filtering functions according to claim 1, characterized in that: The filter screen (7) is an aluminum screen frame.

8. The range hood with multiple filtering functions according to claim 1, characterized in that: The smoke inlet is provided on the top of the panel (8) and has an upper smoking port (11). The upper smoking port (11) is in communication with the condensation chamber (9). A cover plate (12) is movably hingedly installed in the upper smoking port (11). The cover plate (12) is driven to open and close by an electric mechanism.

9. The range hood with multiple filtering functions according to claim 1, characterized in that: The smoke inlet is an upper smoke inlet (11) and a lower smoke inlet (13) arranged at the top and bottom of the panel (8); the upper smoke inlet (11) and the lower smoke inlet (13) are in communication with the condensation chamber (9).

10. The range hood with multiple filtering functions according to claim 9, characterized in that: Wind guide plates (14) are fixedly installed in the upper smoking opening (11) and the lower smoking opening (13).

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