Household kitchen split type oil smoke purifier

Abstract

The utility model discloses a household kitchen split type oil smoke purifier which comprises a smoke hood, the front end face of the smoke hood is of an inner nest type structure, a flow guide filter screen is clamped in the middle of the smoke hood, the smoke hood is connected to an air inlet of an external purifier through a suction and exhaust connecting pipe, and the purifier comprises a box body with a built-in oil smoke filter cavity. An oil fume filtering chamber and an air pressure bin are arranged in the box body, an oil fume secondary filter screen extending into the oil fume filtering chamber in the box body is inserted into one side of the box body, and the secondary filter screen is arranged at the rear end of an exhaust inlet of the purifier and in the box body of the purifier and is convenient to take out and clean; the three-time power filter screen is arranged in a purifier box body, namely, the three-time power filter screen is installed at an air suction opening of a built-in air pressure bin of the purifier and keeps about 1 cm away from the plane of the air pressure bin outside the air pressure bin, the blocking net is larger than the air suction opening of the air pressure bin by about 1 cm, the blocking net and a motor of the air pressure bin coaxially and synchronously operate, tail end complete blocking is conducted, and a user does not need to disassemble and wash the whole machine and keeps clean operation all the time. And the noise is low.

Description

Technical Field

[0001] This utility model relates to the field of kitchen equipment structure technology, specifically a household kitchen split-type oil fume purifier. Background Technology

[0002] The kitchen is heavily polluted by fumes: stir-frying and deep-frying produce severe oil fume pollution. Heating food consumes energy and generates a large amount of heat. Especially in summer, the high heat generated by food heating causes pollution. The fumes and heat generated in the kitchen cannot be purified. Due to the negative pressure, the fumes and heat cannot be completely removed. The negative pressure reduces the exhaust of fumes and increases the inflow of polluted outdoor air. The range hood only removes polluted air from the stove and its vicinity, but cannot remove polluted air from the area around the cook who is working near the stove.

[0003] Range hoods are common appliances in home kitchens. In high-rise residential buildings, there are vertical public flues. The range hoods of the same apartment on each floor are connected to the public flue, which collects the cooking fumes from all the apartments and discharges them from the public flue outlet on the roof.

[0004] While existing range hoods can largely achieve fume extraction—with separate, independent centrifugal fans and fume collection hoods, and the centrifugal fan encased in sound-absorbing material and mounted inside the exhaust pipe with a damping spring vibration damper—they also address the issue of high-speed gas flow by adding air intakes (first and second intakes on the upper part of the fume collection hood) to reduce gas velocity and thus noise. However, this approach has a drawback: reducing gas velocity often leads to insufficient local vacuum, decreasing fume extraction efficiency; and maintaining effective fume extraction makes it difficult to achieve optimal airflow.

[0005] Heavy fumes cannot be quickly and effectively discharged even when the wind noise is reduced. Moreover, existing range hoods require regular cleaning, and simple cleaning is not enough to remove the grease. Professional cleaning agents must be used, and the cleaning frequency is very high. Utility Model Content

[0006] The purpose of this utility model is to overcome the defects and shortcomings of the existing technology and provide a household kitchen split-type oil fume purifier, which solves the various problems existing in the existing technology.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A household kitchen split-type fume purifier includes a fume hood with an inwardly recessed front end. A guide filter is installed in the middle of the fume hood, and an oil storage tank is provided at the bottom of the guide filter. An air intake is provided on the rear end of the fume hood and is connected to the air inlet of an external purifier through an exhaust pipe. The purifier includes a housing with a built-in fume filtration chamber. An air inlet is provided at one end of the housing, and an air outlet is provided at the other end. The air outlet is connected to an external flue through a pipe. The housing contains a fume filtration chamber and a pressure chamber. A secondary fume filter is inserted into the fume filtration chamber on one side of the housing. A power fan assembly with a power filter plate is installed on the side of the housing on the same side as the secondary fume filter. The power filter plate faces the air intake of the pressure chamber. An oil collection port is provided at the bottom of the housing, and a removable oil collection tray is installed at the oil collection port.

[0009] The flow guide filter and the oil storage tank are an integral structure, and the bottom end of the flow guide filter is provided with an oil storage tank.

[0010] The secondary filter screen for oil fumes is arc-shaped.

[0011] The box body has an insertion slot on one side, which matches the shape of the secondary oil fume filter. The upper and lower end faces and the inner side of the box body are respectively provided with guide grooves that correspond to the inserted secondary oil fume filter.

[0012] The power fan assembly includes a motor, an impeller is mounted on the output shaft of the motor, the impeller is located in the oil fume filtration chamber inside the housing, a connecting rod shaft extending out of the impeller is connected to the end of the motor output shaft, and a power filter screen is mounted on the end of the connecting rod shaft.

[0013] The motor is installed inside the fan housing and on one side of the box, with the installation side being the same as the secondary oil fume filter. The air outlet of the fan housing corresponds to the air outlet on the rear end face of the box.

[0014] The power filter screen is circular, and its diameter is larger than that of the impeller.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The design of this application is reasonable and simple. It does not require disassembly and cleaning of the entire machine, and it always maintains cleaning operation with low noise.

[0017] The structure of the flow-guiding filter effectively prevents oil and liquid contamination, making it easy to operate and reducing time waste. The air inlet of the purifier is directly connected to the air intake on the rear end of the range hood. Moreover, the purifier has a small size and can be installed inside a kitchen cabinet. The external purifier's motor reduces noise, allows for smoother airflow, reduces wind and motor resistance, resulting in high oil and smoke separation without affecting the range hood's air volume, and greatly extends the range hood's service life.

[0018] By combining a flow-guiding filter, an externally mounted internal secondary oil fume filter, and a powered filter plate, the purification efficiency is improved. The secondary filter adsorbs the purified oil fumes again, and the oil fumes after being filtered and adsorbed by the secondary filter are then spun out at the air outlet by the powered filter plate, thus ensuring the cleanliness of the purified oil fumes and making the user more comfortable. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the flow guide filter screen.

[0021] Figure 3 This is a structural diagram of the box;

[0022] Figure 4 This is a schematic diagram of the structure of a secondary filter screen for cooking fumes.

[0023] Figure 5 This is a structural schematic diagram of the power fan assembly;

[0024] Figure 6 This is a schematic diagram of the structure of a power filter screen.

[0025] Figure label:

[0026] 1. Fume hood; 2. Filter screen; 3. Oil storage tank; 4. Air intake; 5. Suction and exhaust connection pipe; 6. Purifier; 61. Housing; 62. Air inlet; 63. Air outlet; 64. Oil fume filtration chamber; 65. Secondary oil fume filter; 66. Air pressure chamber; 7. Power fan assembly; 71. Motor; 72. Fan impeller; 73. Connecting shaft; 74. Power filter plate; 75. Fan housing; 8. Insert slot; 9. Guide groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] See appendix Figure 1-6 ;

[0029] A household kitchen split-type oil fume purifier includes a fume hood 1 with an inwardly recessed front end. A guide filter 2 is fitted in the middle of the fume hood 1, and an oil collection tank 3 is located at the bottom of the guide filter 2. An air intake 4 is located at the rear end of the fume hood 1 and is connected to the air inlet of an external purifier 6 via an exhaust pipe 5. The purifier 6 includes a housing 61 with a built-in oil fume filtration chamber 64. An air inlet 62 is located at one end of the housing 61, and an air outlet 63 is located at the other end of the housing 61. The air outlet 63 is connected to an external flue via a pipe. The oil fume filtration chamber is located inside the housing. The chamber 64 and the pressure chamber 66 are separated by a partition built into the housing. The pressure chamber 66 is connected to the fume filtration chamber 64 and has an air outlet corresponding to the power fan assembly 7. A secondary fume filter 65 is inserted into the fume filtration chamber 64 on one side of the housing 61. A power fan assembly 7 with a power filter plate 74 is installed on the side of the housing on the same side as the secondary fume filter 65. The power filter plate 74 faces the air inlet of the pressure chamber 66. An oil collection port is provided at the bottom of the housing and a detachable oil collection tray is installed at the oil collection port.

[0030] Furthermore, the guide filter 2 and the oil storage tank 3 are integrated into one unit, with the oil storage tank 3 horizontally positioned at the bottom end of the guide filter 2. This integrated structure facilitates disassembly and cleaning, and the oil filtered and adsorbed by the guide filter is directly collected in the oil storage tank, reducing the path of the adsorbed oil and enabling rapid and effective oil collection.

[0031] The secondary fume filter 65 is arc-shaped. Located at the rear end of the purifier's air intake, this built-in filter performs secondary filtration, further filtering, adsorbing, and collecting the initial-filtered fumes. It is easily removed and cleaned within the purifier housing. Its arc-shaped structure facilitates disassembly and assembly while increasing the area of ​​the fume filtration chamber, improving ventilation. A slot 8 is provided on one side of the housing 61, matching the shape of the secondary fume filter 65. Guide grooves 9 are provided on the upper and lower end faces and inner side of the housing 61, corresponding to the inserted secondary fume filter 65. This slot structure ensures stable insertion of the secondary fume filter during side disassembly and assembly, and also guarantees a tight seal around the filter, preventing fumes from being drawn out directly without passing through the filter, thus enhancing the filtration performance.

[0032] Furthermore, the power fan assembly 7 includes a motor 71, with an impeller 72 mounted on the output shaft of the motor 71. The impeller 72 is located in the oil fume filtration chamber within the housing 61. A connecting shaft 73 extending from the impeller 72 is connected to the end of the motor 71's output shaft, and a power filter plate 74 is mounted on the end of the connecting shaft 73. The power filter is located inside the purifier housing, specifically at the air intake of the built-in pressure chamber, approximately 1 cm outside the pressure chamber and about 1 cm from its plane. The filter is larger than the air intake of the pressure chamber by about 1 cm and operates coaxially and synchronously with the pressure chamber motor for complete end-of-pipe interception. The motor 71 is located inside the fan housing 75 and installed on one side of the housing 61, with the installation side on the same side as the secondary oil fume filter 65. The air outlet of the fan housing 75 corresponds to the air outlet on the rear end face of the housing. The power filter plate 74 is circular, with a diameter larger than that of the impeller 72. The motor rotates, driving the impeller to draw air. Simultaneously, the connecting shaft rotates, causing the power filter plate to rotate. This ensures that all the flue gas reaching the impeller is flung off by the power filter plate, removing oil and moisture from the flue gas. This process is highly efficient and requires no additional power. The combination of the guide filter, the externally mounted internal secondary oil fume filter, and the power filter plate improves the purification rate. The two filtrations further adsorb the purified oil fumes, and the oil fumes, after being filtered and adsorbed by the secondary filter, are flung off again at the air outlet by the power filter plate, ensuring the oil fumes are completely purified and providing greater user comfort.

[0033] In summary, this product is installed at an angle on the upper side of the stove. Its design and structure are reasonable, its shape is low-cost, and it is convenient for most families to use. During use, its performance is superior to traditional household range hoods. Through the combination of a guide filter, an externally mounted internal secondary oil fume filter, and a powered filter plate, the purification rate is improved. The secondary filter adsorbs the purified oil fumes again, and the oil fumes after being filtered and adsorbed by the secondary filter are then blocked by the powered filter plate at the air intake of the built-in air pressure chamber, which can maintain clean operation for a long time. Moreover, the suction and exhaust effect is always low noise. Furthermore, the entire machine does not need to be disassembled and cleaned for its entire lifespan, achieving a smoke-free indoor environment and clean exhaust, which is beneficial to the health of every family and the human living environment.

[0034] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0035] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A household kitchen split-type oil fume purifier, comprising a fume hood (1), wherein the front end face of the fume hood (1) has an inward concave structure, and a flow guide filter (2) is fitted in the middle of the fume hood (1), characterized in that: The bottom of the flow guide filter (2) is provided with an oil storage tank (3), and the rear end face of the fume hood (1) is provided with an air intake (4), which is connected to the air inlet of the external purifier (6) through an air intake and exhaust connection pipe (5). The purifier (6) includes a box, one end of which is provided with an air inlet (62), and the other end of which is provided with an air outlet (63). The air outlet (63) is connected to the external flue through a pipe. The box is provided with an oil fume filter. The housing (61) has a filter chamber (64) and a pressure chamber (66). A secondary oil fume filter (65) is inserted into the oil fume filter chamber (64) on one side of the housing (61). A power fan assembly (7) with a power filter plate (74) is installed on the side of the housing on the same side as the secondary oil fume filter (65). The power filter plate (74) faces the air intake of the pressure chamber (66). An oil collection port is provided at the bottom of the housing, and a detachable oil collection tray is installed at the oil collection port.

2. The household kitchen split-type oil fume purifier according to claim 1, characterized in that: The flow guide filter (2) and the oil storage tank (3) are an integral structure, and the oil storage tank (3) is horizontally arranged at the bottom end of the flow guide filter (2).

3. The household kitchen split-type oil fume purifier according to claim 1, characterized in that: The secondary oil fume filter (65) is arc-shaped.

4. The household kitchen split-type oil fume purifier according to claim 1, characterized in that: The box (61) has an insertion slot (8) on one side, which matches the shape of the secondary oil fume filter (65). The upper and lower end faces and the inner side of the box (61) are respectively provided with guide grooves (9) that correspond to the inserted secondary oil fume filter (65).

5. The household kitchen split-type oil fume purifier according to claim 1, characterized in that: The power fan assembly (7) includes a motor (71), an impeller (72) is installed at the output shaft end of the motor (71), the impeller (72) is located in the oil fume filter chamber inside the housing (61), the end of the output shaft of the motor (71) is connected to a connecting shaft (73) extending out of the impeller (72), and a power filter screen plate (74) is installed at the end of the connecting shaft (73).

6. The household kitchen split-type oil fume purifier according to claim 5, characterized in that: The motor (71) is located inside the fan housing (75) and installed on one side of the box (61), with the installation side being on the same side as the secondary oil fume filter (65). The air outlet of the fan housing (75) corresponds to the air outlet on the rear end face of the box.

7. The household kitchen split-type oil fume purifier according to claim 5, characterized in that: The power filter plate (74) is circular, and its diameter is larger than that of the impeller (72).

Images