Oil fume filtering assembly and kitchen air conditioner

Abstract

The application discloses an oil fume filtering assembly and a kitchen air conditioner. The oil fume filtering assembly comprises: an air duct structure, a first end of the air duct structure is air inlet, and a second end of the air duct structure is air outlet; a sound wave generating assembly is arranged in the air duct structure, and the sound wave generating assembly is used for exciting oil fume particles to fuse; and a filter screen is arranged downstream of the sound wave generating assembly along an air flow direction. The oil fume filtering assembly and the kitchen air conditioner effectively solve the problem that the air volume cannot be guaranteed due to the adoption of a relatively fine filter screen in the prior art.

Description

Technical Field

[0001] This invention relates to the field of kitchen air conditioning technology, and more specifically, to an oil fume filter assembly and a kitchen air conditioner. Background Technology

[0002] Kitchen air conditioners integrate oil fume filtration devices, combining kitchen air conditioning and range hood systems. Traditional air conditioners used in kitchens can lead to clogged evaporators in the indoor unit, with oil accumulation blocking the entire unit, resulting in poor heat exchange. The oil can also deteriorate, causing the indoor unit to emit odors and creating health hazards and other adverse consequences.

[0003] Kitchen air conditioners need built-in filters to remove cooking fumes. Traditional filters require relatively fine mesh to effectively remove fumes, and these fumes tend to accumulate, making them difficult to clean. The filtration efficiency gradually deteriorates over time, eventually requiring complete replacement. Furthermore, finely meshed filters can create significant airflow resistance, compromising air volume.

[0004] In summary, existing kitchen air conditioners, due to their use of fine filters, cannot guarantee sufficient airflow. Summary of the Invention

[0005] This invention provides an oil fume filtration component and a kitchen air conditioner to solve the problem that existing kitchen air conditioners, due to the use of finer filters, cannot guarantee airflow.

[0006] To achieve the above objectives, the present invention provides an oil fume filtration assembly, comprising: an air duct structure, wherein air enters at a first end of the air duct structure and air exits at a second end of the air duct structure; a sound wave generating assembly disposed within the air duct structure, the sound wave generating assembly being used to excite the fusion of oil fume particles; and a filter screen disposed downstream of the sound wave generating assembly along the airflow direction.

[0007] Furthermore, the fume filtration assembly also includes a fan assembly, which is configured correspondingly to the duct structure and is used to drive airflow.

[0008] Furthermore, the filter screen is connected to the second end of the air duct structure, and the fan assembly is disposed within the air duct structure;

[0009] The fan assembly is located upstream of the sound wave generating assembly along the airflow direction, and the fan assembly is located between the first end of the duct structure and the sound wave generating assembly.

[0010] Furthermore, the filter screen is disposed within the air duct structure, and the fan assembly is disposed downstream of the filter screen.

[0011] Furthermore, it also includes a coarse filter screen, which is disposed at the first end of the air duct structure.

[0012] Furthermore, it also includes an oil collection mechanism, which is disposed within the air duct structure and located at the bottom of the sound wave generating component.

[0013] Furthermore, the oil collection mechanism includes an oil storage trench, which is connected to an external oil drainage pipeline.

[0014] Furthermore, the oil collection mechanism includes an oil-gathering structure, which is located upstream of the oil storage trench along the airflow direction;

[0015] The oil-gathering structure has multiple serrated structures arranged sequentially along the airflow direction. The windward side of the serrated structure is an inclined surface, and the leeward side of the serrated structure is a vertical surface. The first end of the windward side of the serrated structure is the lowest position of the serrated structure, and the second end of the windward side of the serrated structure is the highest position of the serrated structure. The second end of the windward side of the serrated structure is connected to the leeward side of the serrated structure.

[0016] Furthermore, it also includes: an auxiliary sound wave generator, which is disposed within the air duct structure and located upstream of the oil-collecting structure along the airflow direction, and which sends sound waves toward the oil-collecting structure.

[0017] According to another aspect of the present invention, a kitchen air conditioner is provided, including the above-described fume filtration assembly.

[0018] Furthermore, the air inlet of the kitchen air conditioner is connected to the first end of the air duct structure, and the second end of the air duct structure is connected to the heat exchange air duct of the kitchen air conditioner; the evaporator of the kitchen air conditioner is disposed in the heat exchange air duct.

[0019] Furthermore, the kitchen air conditioner includes an air conditioner panel, on which an air inlet and an air outlet are provided. The air inlet is provided with a grille, and the air outlet is provided with a filter structure.

[0020] Furthermore, the filter structure is detachably connected to the air conditioning panel via a positioning structure.

[0021] The fume filtration assembly of this invention is installed at the air intake of a kitchen air conditioner to filter the incoming air for grease and fumes. Air containing grease and fumes enters the duct structure from its first end. Due to the addition of a sound wave generator within the duct structure, the tiny grease and fumes particles are excited by the sound wave generator. The varying sound pressure at different locations causes the particles to move towards lower pressure areas. Because the sound wave excitation is directional, the particle movement is also directional. When a large number of particles move towards each other and collide, the probability of tiny grease and fumes particles combining is greatly increased, thus merging extremely small particles into larger ones. These larger particles form droplets that enter the filter screen for filtration. Finally, clean air flows through the filter screen and into the evaporator for heat exchange. By incorporating the sound wave generator, the filter screen can fully filter the grease and fumes, allowing the use of a standard filter screen instead of a finer one. This avoids significant air resistance, ensures sufficient airflow to the kitchen air conditioner, and improves its cooling efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the fume filter assembly according to Embodiment 1 of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the fume filtration assembly according to Embodiment 2 of the present invention;

[0024] Figure 3 yes Figure 2 A partial structural diagram of the oil fume filter assembly;

[0025] Figure 4 This is a schematic diagram of the air conditioning panel of the kitchen air conditioner according to Embodiment 3 of the present invention;

[0026] Figure 5 This is a schematic diagram of the air outlet of the kitchen air conditioner according to Embodiment 3 of the present invention;

[0027] Figure 6 This is a schematic diagram of the filter structure of the kitchen air conditioner in Embodiment 3 of the present invention when it is turned on. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0029] Example 1

[0030] See Figure 1As shown in Embodiment 1 of the present invention, an oil fume filtration assembly is provided. The oil fume filtration assembly includes an air duct structure 10, a sound wave generating assembly 20, and a filter screen 30. Air enters at a first end of the air duct structure 10 and exits at a second end. The sound wave generating assembly 20 is disposed within the air duct structure 10 and is used to excite the fusion of oil fume particles. The filter screen 30 is disposed downstream of the sound wave generating assembly 20 along the airflow direction.

[0031] The fume filtration assembly of this invention is installed at the air intake of a kitchen air conditioner to filter the incoming air for grease and fumes. Air containing grease and fumes enters the duct structure from its first end. Due to the addition of a sound wave generator within the duct structure, the tiny grease and fumes particles are excited by the sound wave generator. The varying sound pressure at different locations causes the particles to move towards lower pressure areas. Because the sound wave excitation is directional, the particle movement is also directional. When a large number of particles move towards each other and collide, the probability of tiny grease and fumes particles combining is greatly increased, thus merging extremely small particles into larger ones. These larger particles form droplets that enter the filter screen for filtration. Finally, clean air flows through the filter screen and into the evaporator for heat exchange. By incorporating the sound wave generator, the filter screen can fully filter the grease and fumes, allowing the use of a standard filter screen instead of a finer one. This avoids significant air resistance, ensures sufficient airflow to the kitchen air conditioner, and improves its cooling efficiency.

[0032] Preferably, the fume filtration assembly further includes a fan assembly 40, which is disposed corresponding to the air duct structure 10, and the fan assembly 40 is used to drive the airflow.

[0033] The function of the fan assembly 40 is to further increase the air intake volume and ensure the air intake volume of the kitchen air conditioner.

[0034] In this embodiment, the filter screen 30 is connected to the second end of the air duct structure 10, and the fan assembly 40 is disposed within the air duct structure 10;

[0035] The fan assembly 40 is located upstream of the sound wave generating assembly 20 along the airflow direction, and the fan assembly 40 is located between the first end of the air duct structure 10 and the sound wave generating assembly 20.

[0036] After the air is blown in, it passes through the fan assembly and then into the air duct structure, reaching the sound wave generating component. Under the action of the sound wave generating component, tiny oil fume particles gather, and after being filtered by the filter screen, the clean airflow enters the air inlet of the kitchen air conditioner, and then is sent to different rooms in the room (such as the kitchen) through multiple air outlets.

[0037] The sound wave generating assembly can consist of two symmetrically placed sound wave generators, with the two generators outputting in phase and the sound wave stagnation point located in the exact center of the cavity in the air duct structure. Alternatively, the sound wave generating assembly can consist of a single sound wave generator and a strong reflective surface. The sound wave generating assembly can be composed of a single microphone or an array of sound wave generators arranged in a straight line.

[0038] The cavity dimensions of the air duct structure should be designed in detail, and the sound waves emitted by the sound generator and the reflected sound waves should converge in the middle of the cavity to achieve the best effect.

[0039] Multiple filters can be arranged in series to further improve the filtration rate of oil fume particles in the air. Air repeatedly passes through the filters, increasing the filtration efficiency of the oil fumes.

[0040] Example 2

[0041] See Figure 2 As shown in Embodiment 2 of the present invention, an oil fume filtration assembly is provided. The oil fume filtration assembly includes an air duct structure 10, a sound wave generating assembly 20, and a filter screen 30. Air enters at a first end of the air duct structure 10 and exits at a second end. The sound wave generating assembly 20 is disposed within the air duct structure 10 and is used to excite the fusion of oil fume particles. The filter screen 30 is disposed downstream of the sound wave generating assembly 20 along the airflow direction.

[0042] Preferably, the filter screen 30 is disposed within the air duct structure 10, and the fan assembly 40 is disposed downstream of the filter screen 30.

[0043] The biggest advantage of placing the fan assembly 40 downstream of the filter screen 30 is that it can prevent oil fume particles from adhering to the fan assembly, which is beneficial to the life of the motor. The fan assembly is also less susceptible to oil fume pollution, making it easier to clean and maintain.

[0044] Combination Figure 2 As shown, the fume filtration assembly also includes a coarse filter 50, which is disposed at the first end of the air duct structure 10.

[0045] After air is blown in, it first passes through a set of coarse filters to remove large particulate pollutants. The air then directly enters the sound wave generator, where the fan assembly is located. The air is purified before passing through the fan assembly. This layout places most of the components on the clean side, making them less susceptible to contamination, facilitating cleaning and maintenance, and preventing the motor from being exposed to oil fumes, thus extending its lifespan.

[0046] The fume filtration assembly also includes an oil collection mechanism, which is disposed within the air duct structure 10 and located at the bottom of the sound wave generating assembly 20.

[0047] The oil collection mechanism collects the accumulated oil at the bottom of the air duct structure, making it easy to clean after collection.

[0048] Oil may accumulate at the bottom of the air duct structure and needs to be cleaned regularly. How to efficiently collect this oil is a key technical point. To address the above problem, the oil collection mechanism in this embodiment includes an oil storage trench 61, which is connected to an external oil drain pipeline.

[0049] The oil storage trench 61 can collect and gather oil in the air duct structure, and then discharge it from the external oil drain pipe, which increases the collection efficiency and ease of cleaning.

[0050] The oil storage groove 61 can also be cleaned regularly by means of high-pressure water flow, automatic spraying of detergent, etc., so that the kitchen air conditioner can realize the function of self-cleaning, which greatly reduces the time and effort spent by users on cleaning, and achieves the effect of filtering oil fumes and self-cleaning.

[0051] Furthermore, the oil collection mechanism includes an oil-collecting structure 62, which is disposed upstream of the oil storage trench 61 along the airflow direction.

[0052] See Figure 3 The oil-collecting structure 62 has a plurality of serrated structures 63 arranged sequentially along the airflow direction. The windward side 63a of the serrated structure 63 is an inclined surface, and the leeward side 63b of the serrated structure 63 is a vertical surface. The first end of the windward side 63a of the serrated structure 63 is the lowest position of the serrated structure 63, and the second end of the windward side 63a of the serrated structure 63 is the highest position of the serrated structure 63. The second end of the windward side 63a of the serrated structure 63 is connected to the leeward side 63b of the serrated structure 63.

[0053] The design incorporates rows of serrated structures for oil collection. During airflow, some oil droplets are carried along the serrated structures towards the oil storage trench. The leeward side 63b of the serrated structure 63 is vertical, preventing reverse flow of oil and increasing oil collection efficiency.

[0054] The fume filtration assembly also includes an auxiliary sound wave generator 70, which is disposed within the air duct structure 10. The auxiliary sound wave generator 70 is located upstream of the oil-collecting structure 62 along the airflow direction and sends sound waves toward the oil-collecting structure 62.

[0055] The surface of the serrated structure collects large oil droplets generated by the excitation of the acoustic wave generator. An auxiliary acoustic wave generator 70 is placed on one side. The pressure difference of the acoustic waves causes the oil droplets to cross the serrated structure and move to the position of the next tooth. The leeward side 63b of the serrated structure 63 is a vertical surface to prevent the oil from flowing backward. Through the acoustic wave pressure difference and the special structure of the serrated structure, the oil is driven to migrate autonomously without moving parts, which reduces the need for maintenance.

[0056] The filtration efficiency of traditional filters is related to their total area; a larger area results in better filtration. However, the area of ​​the filter cannot be increased indefinitely. This invention utilizes the principle of acoustic resonance to gather tiny oil droplets in the air, achieving a "piling up" effect. This makes the oil droplets larger and easier to filter out, allowing for a smaller filter size. Because it employs acoustic resonance, the resonance cavity is a relatively large space, resulting in significantly lower resistance compared to traditional filters, thus requiring much less fan power and saving energy.

[0057] The fume filter assembly of this invention can be integrated into the entire kitchen air conditioner or used as a separate integrated air vent component, becoming an optional accessory for the entire unit. It is evident that the fume filter assembly has greater versatility and can be flexibly configured.

[0058] Example 3

[0059] See Figures 4 to 6 As shown in Embodiment 3 of the present invention, a kitchen air conditioner is provided, which includes the above-mentioned oil fume filter assembly.

[0060] Air containing tiny oil fume particles enters the oil fume filter assembly through the air inlet of the kitchen air conditioner. After passing through the sound wave generator and filter screen, it becomes clean air and enters the evaporator of the kitchen air conditioner for heat exchange. This invention improves the filtration efficiency of small-diameter oil fume particles, and, combined with the filter screen, greatly expands the range of droplet diameters that can be filtered. At the same time, it does not increase system air resistance, reducing airflow loss while maintaining the same airflow volume.

[0061] Preferably, the air inlet 81 of the kitchen air conditioner is connected to the first end of the air duct structure 10, and the second end of the air duct structure 10 is connected to the heat exchange air duct of the kitchen air conditioner; the evaporator of the kitchen air conditioner is disposed in the heat exchange air duct.

[0062] The duct structure of the fume filter component can be integrated into the kitchen air conditioner, which greatly reduces the size of the kitchen air conditioner and facilitates installation and layout.

[0063] In this embodiment, the kitchen air conditioner includes an air conditioner panel 83, on which an air inlet 81 and an air outlet 82 are provided. The air inlet 81 is provided with a grille 91, and the air outlet 82 is provided with a filter structure 92.

[0064] The grille 91 provides initial filtration and can also close the air inlet when the kitchen air conditioner is not in use, preventing oil fumes and dust from entering and extending the lifespan of the kitchen air conditioner. The filter structure 92 on the air outlet prevents oil fumes from entering the heat exchange duct from the air outlet 82, providing comprehensive protection for the evaporator inside the heat exchange duct and reducing the impact of oil fumes on the kitchen air conditioner.

[0065] See Figure 6 The filter structure 92 is detachably connected to the air conditioning panel 83 via the positioning structure 93. The filter structure 92 can be disassembled and cleaned periodically. The positioning structure 93 can be configured in various ways, such as a combination of a limiting buckle and a slot, or a hook. The positioning structure 93 improves assembly efficiency and facilitates maintenance and disassembly.

[0066] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0067] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0068] Of course, the above are preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the basic principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An oil fume filter assembly, characterized in that, include: The air duct structure (10) has an air inlet at its first end and an air outlet at its second end. A sound wave generating component (20) is disposed within the air duct structure (10), and the sound wave generating component (20) is used to excite the fusion of oil fume particles; A filter screen (30) is disposed downstream of the sound wave generating component (20) along the airflow direction; An oil spill collection mechanism is provided within the air duct structure (10) and located at the bottom of the acoustic wave generating component (20). The oil spill collection mechanism includes an oil storage trench (61) connected to an external oil drain pipe. The oil spill collection mechanism also includes an oil-gathering structure (62) located upstream of the oil storage trench (61) along the airflow direction. The oil-gathering structure (62) has multiple serrated structures arranged sequentially along the airflow direction. 63), the windward side (63a) of the sawtooth structure (63) is an inclined surface, the leeward side (63b) of the sawtooth structure (63) is a vertical surface, the first end of the windward side (63a) of the sawtooth structure (63) is the lowest position of the sawtooth structure (63), the second end of the windward side (63a) of the sawtooth structure (63) is the highest position of the sawtooth structure (63), and the second end of the windward side (63a) of the sawtooth structure (63) is connected to the leeward side (63b) of the sawtooth structure (63).

2. The fume filter assembly according to claim 1, characterized in that, The fume filter assembly also includes: A fan assembly (40) is provided corresponding to the air duct structure (10), and the fan assembly (40) is used to drive the airflow.

3. The fume filter assembly according to claim 2, characterized in that, The filter screen (30) is connected to the second end of the air duct structure (10), and the fan assembly (40) is disposed inside the air duct structure (10); The fan assembly (40) is located upstream of the sound wave generating assembly (20) along the airflow direction, and the fan assembly (40) is located between the first end of the air duct structure (10) and the sound wave generating assembly (20).

4. The fume filter assembly according to claim 2, characterized in that, The filter screen (30) is disposed within the air duct structure (10), and the fan assembly (40) is disposed downstream of the filter screen (30).

5. The fume filter assembly according to claim 3 or 4, characterized in that, Also includes: A coarse filter (50) is disposed at the first end of the air duct structure (10).

6. The fume filter assembly according to claim 1, characterized in that, Also includes: An auxiliary sound wave generator (70) is provided inside the air duct structure (10). The auxiliary sound wave generator (70) is located upstream of the oil-collecting structure (62) along the airflow direction and sends sound waves toward the oil-collecting structure (62).

7. A kitchen air conditioner, characterized in that, The oil fume filter assembly includes any one of claims 1 to 6.

8. The kitchen air conditioner according to claim 7, characterized in that, The air inlet (81) of the kitchen air conditioner is connected to the first end of the air duct structure (10), and the second end of the air duct structure (10) is connected to the heat exchange air duct of the kitchen air conditioner; the evaporator of the kitchen air conditioner is located in the heat exchange air duct.

9. The kitchen air conditioner according to claim 7, characterized in that, The kitchen air conditioner includes an air conditioner panel (83), on which an air inlet (81) and an air outlet (82) are provided. The air inlet (81) is provided with a grille (91), and the air outlet (82) is provided with a filter structure (92).

10. The kitchen air conditioner according to claim 9, characterized in that, The filter structure (92) is detachably connected to the air conditioning panel (83) via the positioning structure (93).

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