A range hood and process for accelerating the collection of oil smoke

Abstract

The present application relates to a range hood and a process method for accelerating the collection of oil smoke, which comprises a housing, the housing being provided with an exhaust port for discharging oil smoke; a smoke collecting hood arranged inside the housing, the smoke collecting hood having a smoke collecting cavity and an air guiding cavity, the smoke collecting hood having an inlet for allowing the oil smoke to enter the lower end of the smoke collecting cavity and a smoke collecting port for allowing the oil smoke in the smoke collecting cavity to enter the exhaust port, the smoke collecting hood being provided with an exhaust fan, the air outlet end of the exhaust fan being connected with the air guiding cavity; the smoke collecting hood being provided with a plurality of jet holes, the jet holes being located on a side of the smoke collecting hood away from the smoke collecting port, the jet holes being connected with the air guiding cavity, and the openings of the jet holes being arranged toward the smoke collecting port. The present application has the effect of improving the efficiency of the range hood in collecting oil smoke.

Description

Technical Field

[0001] The present application relates to the technical field of kitchen appliances, and in particular to a range hood and a process method for accelerating the collection of oil fumes. Background Art

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. It can quickly remove the waste from stove combustion and the fumes that are harmful to the human body produced during cooking, and discharge them outdoors to purify the kitchen environment. At present, range hoods have become one of the indispensable kitchen appliances in modern families. In addition, due to their advantages such as being neat, light, and taking up little space, they are increasingly widely used.

[0003] In the related art, a range hood generally includes a fume hood with a ventilation duct. When installed, an exhaust fan is installed at the outlet of the ventilation duct to suck the fume into the ventilation duct. When the exhaust fan is working, a suction flow path is formed in the ventilation duct, and the fume enters the ventilation duct from the fume hood and is discharged. Since the exhaust fan has limited suction capacity, and in actual application, part of the fume will drift to the outside of the fume hood before entering the ventilation duct, which makes it impossible for part of the fume to be discharged from the ventilation duct in time.

[0004] With regard to the above-mentioned related technologies, there is a defect that the efficiency of the range hood in collecting oil smoke is low. Summary of the invention

[0005] In order to improve the efficiency of oil fume collection by a range hood, the present application provides a range hood and a process method for accelerating oil fume collection.

[0006] In the first aspect, the present application provides a range hood for accelerating the collection of oil smoke, which adopts the following technical solution:

[0007] A range hood for accelerating the collection of oil smoke, comprising:

[0008] A casing, wherein the casing is provided with an exhaust port for exhausting oil smoke;

[0009] A smoke collecting hood is arranged inside the casing, and the smoke collecting hood has a smoke collecting chamber and an air guiding chamber. The smoke collecting hood has an inlet for allowing oil smoke to enter the lower end of the smoke collecting chamber, and a smoke collecting port for allowing oil smoke in the smoke collecting chamber to enter the exhaust port. An exhaust fan is arranged on the smoke collecting hood, and the air outlet end of the exhaust fan is connected with the air guiding chamber. A plurality of jet holes are arranged on the smoke collecting hood, and the jet holes are located on a side of the smoke collecting hood away from the smoke collecting port, the jet holes are connected with the air guiding chamber, and the openings of the jet holes are arranged toward the smoke collecting port.

[0010] By adopting the above technical solution, when the oil smoke rises, it enters the smoke collecting chamber from the suction port of the smoke collecting hood, enters the exhaust port from the smoke collecting port, and is discharged from the exhaust port. In this process, part of the oil smoke that enters the smoke collecting chamber cannot enter the smoke collecting port in time. At this time, the exhaust fan works, the air enters the air guide chamber, and is ejected from the jet hole. The jet hole ejects airflow toward the smoke collecting port, and the oil smoke in the smoke collecting chamber is pulled to the smoke collecting port, thereby reducing the escape of oil smoke, accelerating the collection of oil smoke, and improving the suction and exhaust efficiency of the range hood. In addition, the airflow ejected from the jet hole can produce a negative pressure adsorption effect, so that the oil smoke at the suction port is not easy to escape to the outside of the smoke collecting hood, and it is easy to enter the smoke collecting chamber, thereby facilitating the collection of oil smoke.

[0011] Optionally, the smoke collecting chamber has a guide wall, the guide wall is located on the side opposite to the smoke collecting port on the smoke collecting hood, a smoke guide plate is provided on the guide wall, and the smoke guide plate is inclined from the direction away from the guide wall to the direction close to the smoke collecting port.

[0012] By adopting the above technical solution, when the oil smoke enters the smoke collecting chamber, the oil smoke that does not enter the exhaust port from the smoke collecting port in time will flow in the smoke collecting chamber. When the oil smoke flows along the guide wall of the smoke collecting hood to the smoke guide plate, the flow direction will be changed, that is, the smoke guide plate guides the oil smoke to the smoke collecting port, so that the oil smoke enters the exhaust port and is discharged.

[0013] Optionally, an air supply channel is formed between the smoke collecting hood and the casing, the air inlet end of the exhaust fan is located in the air supply channel, the casing has an air inlet, and the air inlet is connected to the air supply channel; the casing has a front bottom plate, the front bottom plate is located on a side of the smoke collecting chamber away from the smoke collecting port, the front bottom plate is provided with vertical jet holes for forming a vertical wind curtain, and the vertical jet holes are connected to the air supply channel.

[0014] By adopting the above technical solution, when air enters the air supply port, the airflow entering the air supply channel can be ejected from the vertical jet hole, thereby forming a vertical wind curtain. In actual use, the vertical wind curtain is located in front of the user, which can prevent the oil smoke from drifting toward the user and reduce the overflow of the oil smoke.

[0015] Optionally, the casing has a front panel, and a plurality of diversion holes are arranged on the front panel, and the diversion holes are connected to the air supply channel.

[0016] By adopting the above technical solution, the airflow of the air supply channel can flow from the diverter hole to the room, and the exhaust port can discharge the air in the room, thereby improving the indoor air circulation and making the indoor air reach a dynamic balance. When in use, the user is located on the side of the front panel of the range hood. Compared with the air supply port or the air supply channel directly connected to the room, the diverter hole can reduce the air entering the room from the front panel, disperse the airflow, reduce the airflow that affects the vertical jet hole due to excessive air flow to the front panel, and also reduce the impact on the user due to excessive airflow.

[0017] Optionally, the smoke collecting hood is provided with a plurality of transverse jet holes, the transverse jet holes are communicated with the air guide cavity, and the openings of the transverse jet holes face the interior of the smoke collecting hood.

[0018] By adopting the above technical scheme, the lateral jet holes can make the air in the air guide cavity be ejected into the inside of the smoke collecting hood. When the airflow is ejected, the airflow path formed can form negative pressure adsorption in the smoke collecting cavity, so that when the oil smoke enters the smoke collecting cavity from the suction port, it is easy to be sucked into the smoke collecting cavity and reach the smoke collecting port, and it is not easy to escape to the outside of the smoke collecting cavity, thereby improving the oil smoke discharge rate.

[0019] Optionally, a discharge flow channel is formed between the casing and the smoke collecting hood, the discharge flow channel is connected to the smoke collecting port and the exhaust port respectively, an oil filter assembly is arranged in the discharge flow channel, the oil filter assembly includes a plurality of oil filter plates, and the oil filter plates have oil filter grooves.

[0020] By adopting the above technical solution, when the oil smoke is discharged from the smoke collecting port to the air outlet, it can be filtered by the oil filter assembly to reduce the oil content in the discharged oil smoke and reduce the pollution of the discharged gas to the air. The oil filter assembly includes a plurality of oil filter sheets, which can adhere to the oil and make the oil adhere to the oil filter sheets. The setting of the oil filter groove on the oil filter sheet can increase the adhesion area of ​​the oil filter sheet, thereby improving the filtering efficiency of the oil.

[0021] Optionally, the oil filter is arranged at an angle, and an oil collecting box is arranged at the bottom of the oil filter.

[0022] By adopting the above technical solution, the oil filter is tilted, so that the oil in the oil filter groove can be gathered along the oil filter groove to the bottom of the oil filter and collected in the oil collecting box, which is convenient for collecting the oil. When the oil collecting box is full of oil, the oil collecting box can be cleaned, which reduces the frequency of cleaning the oil filter.

[0023] Optionally, a UV photolysis component is provided in the discharge flow channel.

[0024] By adopting the above technical scheme, after the oil fume is filtered by the oil filter component, some oil will remain in the air. The UV photolysis component can transform and decompose the molecular chain structure of the oil fume through the principle of chemical reaction, so that the high-molecular oil fume molecules are converted into harmless low-molecular gases, thereby achieving the purpose of further purifying the oil fume and removing the odor of the oil fume, thereby improving the secondary pollution and odor of the oil fume caused by the original method of collecting oil fume based on physical principles.

[0025] In the second aspect, the present application provides a process for accelerating the collection of oil smoke, which adopts the following technical solution:

[0026] A process for accelerating the collection of oil smoke comprises the following steps:

[0027] S1: exhaust air from the exhaust port, and the oil smoke enters the smoke hood from the suction port;

[0028] S2: The airflow enters the smoke collecting chamber from the air supply port, and draws the oil smoke in the smoke collecting chamber to the smoke collecting port;

[0029] S3: Oil smoke is discharged from the exhaust port.

[0030] By adopting the above technical scheme, oil smoke enters the smoke collecting hood from the suction port, takes in air from the air supply port, and sprays air into the smoke collecting chamber. The impact force generated by the air flow and the negative pressure adsorption force draw the oil smoke in the smoke collecting chamber to the smoke collecting port, so that the oil smoke is discharged from the exhaust port, thereby improving the oil fume collection efficiency.

[0031] Optionally, S2 includes:

[0032] S21: The exhaust fan works, the airflow enters the air guide cavity, and is ejected from the air jet hole toward the smoke collecting port, drawing the oil smoke in the smoke collecting cavity to the smoke collecting port. Meanwhile, the smoke guide plate guides the oil smoke to the smoke collecting port.

[0033] S22: The airflow of the air guide cavity is ejected from the horizontal jet holes, drawing the oil smoke to the smoke collecting cavity;

[0034] S23: Air flows into the air supply channel from the air supply port, and the air flows into the room from the diversion hole, and at the same time is ejected downward from the vertical jet hole to form a vertical wind curtain.

[0035] By adopting the above technical solution, part of the airflow entering the air supply channel from the air supply port is ejected from the vertical jet hole to form a vertical wind curtain to reduce the overflow of oil smoke; part of it flows into the room from the diversion hole to improve the indoor air circulation; the other part enters the air guide cavity and flows to the jet hole and the horizontal jet hole. After the oil smoke enters the smoke collecting cavity, part of the oil smoke directly enters the smoke collecting port; the oil smoke that fails to directly enter the smoke collecting port flows to the smoke collecting port under the action of the airflow ejected from the jet hole and the horizontal jet hole; the oil smoke flowing to the smoke guide plate also flows to the smoke collecting port under the guidance of the smoke guide plate, so that the oil smoke is accelerated to flow to the smoke collecting port and discharged from the exhaust port.

[0036] In summary, the present application includes at least one of the following beneficial technical effects:

[0037] 1. After the air guide cavity enters, the air jet hole ejects air toward the smoke collecting port, drawing the oil smoke in the smoke collecting cavity to the smoke collecting port, thereby reducing the escape of oil smoke, accelerating the collection of oil smoke, and improving the suction and exhaust efficiency of the range hood. In addition, the air jet from the air jet hole can produce a negative pressure adsorption effect, so that the oil smoke at the suction port is not easy to escape to the outside of the smoke collecting hood, and is easy to enter the smoke collecting cavity, thereby improving the collection efficiency of oil smoke;

[0038] 2. The smoke guide plate can guide the oil smoke from the smoke hood to the smoke collecting port, that is, when the oil smoke flows along the guide wall of the smoke hood to the smoke guide plate, the flow direction will be changed, and thus flow to the smoke collecting port, so that the oil smoke enters the exhaust port and is discharged;

[0039] 3. The horizontal jet holes can make the air in the air guide cavity ejected into the smoke collecting hood. When the airflow ejects, the airflow path formed can form negative pressure adsorption in the smoke collecting cavity, so that when the oil smoke enters the smoke collecting cavity from the suction port, it is easy to be sucked into the smoke collecting cavity and reach the smoke collecting port, and it is not easy to escape to the outside of the smoke collecting cavity, thereby improving the oil smoke discharge rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the overall structure of a range hood for accelerating the collection of oil smoke according to an embodiment of the present application;

[0041] Figure 2 This is a schematic diagram of the structure of a range hood for accelerating oil fume collection as viewed from above according to an embodiment of the present application;

[0042] Figure 3 This is a schematic diagram showing the internal structure of a range hood for accelerating the collection of oil smoke according to an embodiment of the present application;

[0043] Figure 4 This is a cross-sectional view showing the structure of a range hood for accelerating the collection of oil smoke in an embodiment of the present application;

[0044] Figure 5 This is a schematic diagram showing the internal structure of a range hood for accelerating the collection of oil smoke according to an embodiment of the present application;

[0045] Figure 6 This is a schematic diagram showing the structure of a range hood for accelerating oil fume collection according to an embodiment of the present application, which is a lighting component and an oil filter component;

[0046] Figure 7 This is a schematic diagram of the structure of a range hood that accelerates oil fume collection and shows an oil filter and a mounting plate according to an embodiment of the present application.

[0047] Description of reference numerals:

[0048] 1. Casing; 11. Upper panel; 111. Air supply port; 112. Exhaust port; 12. Front panel; 121. Diverter hole; 122. Control panel; 13. Rear panel; 14. First panel; 15. Second panel; 16. Front bottom panel; 161. Vertical jet hole; 17. Rear bottom panel; 2. Smoke hood; 20. Exhaust fan; 21. Top panel; 22. Front baffle; 221. Jet hole; 222. Smoke guide plate; 223. Fan door; 23. Rear baffle; 231. First connecting section; 232. Second connecting section; 2 4. First baffle; 241. Connecting hole; 242. Horizontal jet hole; 25. Second baffle; 26. Inlet; 27. Smoke collecting port; 28. Air guide chamber; 29. ​​Partition plate; 3. Smoke collecting chamber; 4. Exhaust flow channel; 5. Air supply flow channel; 6. Inlet chamber; 7. Lighting assembly; 71. Lampshade; 72. Translucent plate; 8. Oil filter assembly; 81. Mounting plate; 82. Side oil filter; 83. Middle oil filter; 84. Oil collecting box; 9. UV photolysis assembly; 91. Lamp holder; 92. UV lamp tube; 93. UV door. DETAILED DESCRIPTION

[0049] The following is combined with Figure 1-7 This application is described in further detail.

[0050] In order to improve the efficiency of oil fume collection by a range hood, an embodiment of the present application provides a range hood that accelerates oil fume collection.

[0051] Reference Figure 1 A range hood for accelerating the collection of oil smoke comprises a casing 1 and a smoke collecting hood 2, wherein the smoke collecting hood 2 is arranged inside the casing 1. The casing 1 is generally arranged in a rectangular box body with a length and a width, and the top of the casing 1 has an upper enclosure 11, and the upper enclosure 11 is provided with an air supply port 111 for inhaling air and an exhaust port 112 for discharging oil smoke, and the exhaust port 112 and the air supply port 111 are respectively arranged on both sides of the width direction of the upper enclosure 11, and the exhaust port 112 is used to install an exhaust fan and discharge oil smoke, and the exhaust port 112 is generally arranged in a rectangular shape. The air supply port 111 is generally arranged in a circular shape, and two air supply ports 111 are arranged along the length direction of the casing 1.

[0052] Reference Figure 2The cross section of the smoke hood 2 is generally trapezoidal, and the length direction of the smoke hood 2 is consistent with the length direction of the casing 1. The smoke hood 2 includes a top plate 21, a front baffle 22, a rear baffle 23, a first baffle 24, and a second baffle 25. The top plate 21 is horizontally arranged along the length direction of the casing 1. The top plate 21, the front baffle 22, the rear baffle 23, the first baffle 24, and the second baffle 25 enclose a smoke collecting chamber 3. The front baffle 22 is located on the side of the casing 1 close to the air supply port 111, and the rear baffle 23 is located on the side of the casing 1 close to the exhaust port 112. The first baffle 24 and the second baffle 25 are respectively vertically arranged at both ends of the length direction of the smoke hood 2. The front baffle 22 and the rear baffle 23 are arranged along the length direction of the casing 1, one side of the front baffle 22 is connected to one long side of the top plate 21, one side of the rear baffle 23 is connected to the other long side of the top plate 21, and the front baffle 22 and the rear baffle 23 are both inclined in the direction away from the top plate 21 and away from the smoke collecting chamber 3.

[0053] Reference Figure 2 and Figure 3 The smoke collecting hood 2 also has an intake port 26 for the oil smoke to enter the lower end of the smoke collecting chamber 3 and a smoke collecting port 27 for the oil smoke in the smoke collecting chamber 3 to enter the exhaust port 112. The intake port 26 is located at the lower end of the smoke collecting hood 2, and the smoke collecting port 27 is located on the rear baffle 23. The smoke collecting port 27 is in a long strip shape and is arranged along the length direction of the rear baffle 23.

[0054] Reference Figure 3 and Figure 4 The smoke hood 2 has an air guide cavity 28, and an exhaust fan 20 is arranged on the smoke hood 2, and the air outlet end of the exhaust fan 20 is connected to the air guide cavity 28. An exhaust flow channel 4 and a supplementary air flow channel 5 are formed between the smoke hood 2 and the casing 1. The exhaust flow channel 4 is connected to the exhaust port 112, and the supplementary air flow channel 5 is connected to the supplementary air port 111. Specifically, the casing 1 has a vertically arranged front panel 12, a rear panel 13, a first panel 14 and a second panel 15. The front panel 12 is located on the side of the front baffle 22 away from the smoke collecting cavity 3, and the rear panel 13 is located on the side of the rear baffle 23 away from the smoke collecting cavity 3. Refer to Figure 2 The first enclosure 14 is located on the side of the first baffle 24 away from the smoke collecting chamber 3, and the second enclosure 15 is located on the side of the second baffle 25 away from the smoke collecting chamber 3. Figure 3 and Figure 4The air guide cavity 28 is located between the front baffle 22 and the front panel 12, and is arranged close to the front baffle 22. A partition plate 29 is arranged between the front baffle 22 and the front panel 12, and the partition plate 29 is arranged along the length direction of the housing 1. One end of the partition plate 29 is arranged perpendicular to the first panel 14 and connected to the first panel 14, and the other end of the partition plate 29 is arranged perpendicular to the second panel 15 and connected to the second panel 15. The air guide cavity 28 is located between the partition plate 29 and the front baffle 22, and the supplementary air flow channel 5 is located between the partition plate 29 and the front panel 12. The exhaust fan 20 is installed on the side wall of the partition plate 29 close to the air guide cavity 28, and the air inlet end of the exhaust fan 20 is arranged through the partition plate 29 and located in the supplementary air flow channel 5, and the air outlet end of the exhaust fan is located in the air guide cavity 28, so that the air outlet end of the exhaust fan 20 is connected to the air guide cavity 28. The exhaust fan 20 can draw outside air into the air supply channel 5 through the air supply port 111, and then into the air guide cavity 28. In order to facilitate the maintenance of the exhaust fan 20, a fan door 223 is also provided on the front baffle, and the fan door 223 closes the exhaust fan 20 in the air guide cavity 28 through a tongue lock.

[0055] Reference Figure 3 and Figure 4 , a plurality of jet holes 221 are provided on the smoke hood 2, and the jet holes 221 are located on the side of the smoke hood 2 away from the smoke collecting port 27. Specifically, the smoke collecting chamber 3 has a guide wall, and the guide wall is located on the opposite side of the smoke collecting port 27 of the smoke hood 2. In the present embodiment, the guide wall is the inner wall of the front baffle 2 close to the smoke collecting chamber 3, and the jet holes 221 are located on the guide wall of the front baffle 22. One end of the front baffle 22 close to the suction port 26 is vertically arranged, and the jet holes 221 are located at one end of the front baffle 22 close to the suction port 26. The jet holes 221 are connected to the wind guide chamber 28, and the openings of the jet holes 221 are arranged toward the smoke collecting port 27. In the present embodiment, the jet holes 221 are arranged in a row along the length direction of the front baffle 22; in other embodiments, the jet holes 221 may be arranged in multiple rows.

[0056] Reference Figure 3 and Figure 4 A smoke guide plate 222 is provided on the guide wall, and the smoke guide plate 222 is located at one end of the guide wall close to the suction port 26 and above the suction port 26. The smoke guide plate 222 is in a long strip shape and is provided along the length direction of the front baffle 22. The smoke guide plate 222 is inclined from the direction away from the guide wall to the direction close to the smoke collecting port 27.

[0057] Reference Figure 3 and Figure 4When the range hood is working, part of the oil smoke cannot directly enter the smoke collecting port 27 and flows in the smoke collecting hood 2. When the oil smoke flows along the guide wall of the front baffle 22 to the smoke guide plate 222, under the guiding effect of the smoke guide plate 222 and the airflow ejected from the jet hole 221 below the smoke guide plate 222, the oil smoke flows toward the smoke collecting port 27, thereby guiding the oil smoke in the smoke collecting chamber 3 to the smoke collecting port 27, thereby accelerating the collection of the oil smoke.

[0058] In order to increase the speed of the airflow ejected from the air jet hole 221, the air jet hole 221 is a trumpet hole, and the end of the air jet hole 221 close to the smoke collecting chamber 3 is a small opening, and the end close to the wind guide chamber 28 is a large opening. When the airflow is ejected from the small opening of the air jet hole 221, the ejection speed of the airflow can be increased, thereby increasing the impact force of the airflow and accelerating the speed of the oil smoke approaching the smoke collecting port 27.

[0059] Reference Figure 4 and Figure 5 An inlet cavity 6 is formed between the first enclosure 14 and the first baffle 24, and an inlet cavity 6 is also formed between the second enclosure 15 and the second baffle 25. A connecting hole 241 is provided on each of the first baffle 24 and the second baffle 25, and the inlet cavity 6 is connected to the air guide cavity 28 through the connecting hole 241. In order to reduce the escape of oil smoke, a transverse jet hole 242 is provided at one end of the first baffle 24 and the second baffle 25 of the smoke hood 2 near the suction port 26. The transverse jet hole 242 is connected to the air guide cavity 28 through the inlet cavity 6, and the opening of the transverse jet hole 242 is arranged toward the inside of the smoke hood 2. The transverse jet hole 242 is arranged in a trumpet shape, and the large opening of the transverse jet hole 242 is located on the side close to the inlet cavity 6, and the small opening is located on the side close to the smoke collecting cavity 3. When air enters the air guide cavity 28, the airflow can enter the inlet cavity 6 from the air guide cavity 28 through the connecting hole 241, and then be ejected from the transverse jet hole 242 into the smoke collecting cavity 3. When the airflow is ejected from the transverse jet hole 242, negative pressure adsorption is formed, which can adsorb the oil smoke from the suction port 26 to the smoke collecting cavity 3, reduce the escape of the oil smoke from the suction port 26, thereby accelerating the collection of the oil smoke and improving the exhaust efficiency of the oil smoke.

[0060] Reference Figure 3 and Figure 4The housing 1 also has a horizontally arranged front bottom plate 16, which is located on the side of the smoke collecting chamber 3 away from the smoke collecting port 27. The front bottom plate 16 is provided with a vertical jet hole 161 for forming a vertical wind curtain, and the vertical jet hole 161 is connected to the supplementary air channel 5. Specifically, the front bottom plate 16 is located at the bottom end of the front panel 12 and the front baffle 22 to close the bottom of the air guide chamber 28 and the supplementary air channel 5, and the length direction of the front bottom plate 16 is consistent with the length direction of the housing 1, and the two sides of the length direction of the front bottom plate 16 are respectively connected to the front baffle 22 and the front panel 12. There are a plurality of vertical jet holes 161 distributed along the length direction of the front bottom plate 16, and the shape of the vertical jet hole 161 is the same as that of the horizontal jet hole 242, and the opening of the vertical jet hole 161 is vertically downward. The front panel 12 is provided with a plurality of diverter holes 121, which are generally distributed in a rectangular array and are connected to the air supply channel 5. When the exhaust fan 20 is working, the air intake of the air supply port 111 is much greater than the total air output of the diverter holes 121 and the vertical jet holes 161.

[0061] When using the range hood, the user is located on the side of the front panel 12 away from the smoke collecting chamber 3. The air flow of the air supply channel 5 can flow out from the diversion hole 121 and move to the smoke collecting chamber 3 at a low speed. The close-range air supply makes the indoor air form a dynamic balance, so that the room maintains good ventilation; the vertical jet hole 161 can spray air flow to form a vertical wind curtain, thereby preventing the oil smoke from overflowing toward the user.

[0062] Reference Figure 2 and Figure 4 The top plate 21 of the smoke collecting hood 2 is installed on the upper enclosure 11 of the casing 1. The top plate 21 is provided with a through hole, and a lighting assembly 7 is arranged in the through hole. The lighting assembly 7 includes a lampshade 71, two lighting tubes (not shown in the figure) and a light-transmitting plate 72. The lampshade 71 is generally arranged in a rectangular box and distributed along the length direction of the top plate 21. The lampshade 71 has an installation cavity, and the lighting tubes are installed in the installation cavity along the length direction of the lampshade 71. The lampshade 71 has an opening on one side close to the smoke collecting chamber 3, and the light-transmitting plate 72 closes the opening of the lampshade 71. In this embodiment, the light-transmitting plate 72 is a transparent glass plate, which has a good light-transmitting effect and is easy to clean. The steam and oil smoke generated during the cooking process will affect the user's sight. The setting of the lighting assembly 7 can improve the visual impact of oil smoke and steam on the user, and can provide illumination under insufficient light conditions.

[0063] Reference Figure 3 and Figure 4, the exhaust flow channel 4 is located on the side of the rear baffle 23 away from the smoke collecting chamber 3, and the exhaust flow channel 4 is connected to the smoke collecting port 27. In this embodiment, the rear baffle 23 includes a first connecting section 231 and a second connecting section 232, and the housing 1 has a rear bottom plate 17 horizontally arranged along the length direction of the housing 1, the rear bottom plate 17 is perpendicular to the rear panel 13, and one side of the rear panel 13 is connected to the bottom of the rear panel 13. One end of the first connecting section 231 is connected to the top plate 21, and one end of the second connecting section 232 is connected to the side of the rear bottom plate 17 away from the rear panel 13. The first connecting section 231 is located on the side of the second connecting section 232 away from the smoke collecting chamber 3, and the smoke collecting port 27 is formed between one end of the first connecting section 231 away from the top plate 21 and one end of the second connecting section 232 away from the rear bottom plate 17. A connecting block for connecting the first connecting section 231 and the second connecting section 232 is disposed in the smoke collecting port 27 , one end of the connecting block is connected to the first connecting section 231 , and the other end is connected to the second connecting section 232 .

[0064] Reference Figure 4 and Figure 6 , an oil filter assembly 8 and a UV photolysis assembly 9 are arranged in the discharge flow channel 4. The oil filter assembly 8 includes a plurality of oil filter sheets parallel to each other and a mounting plate 81 for mounting the oil filter sheets. The mounting plate 81 has substantially the same inclination direction as the first connecting section 231. One end of the oil filter sheet is connected to the side of the first connecting section 231 away from the smoke collecting port 27, and the other end is connected to the rear bottom plate 17 through a support plate. The side of the support plate close to the oil filter sheet is arranged parallel to the oil filter sheet, and the side close to the rear bottom plate 17 is arranged vertically. The mounting plate 81 is located on the side of the oil filter sheet away from the smoke collecting port 27, and the inclination direction of the mounting plate 81 is consistent with the inclination direction of the oil filter sheet.

[0065] Reference Figure 6 and Figure 7 The oil filter is in the shape of a long strip, one end of the oil filter is located on the side of the mounting plate 81 close to the first connecting section 231, and the other end is located on the side of the mounting plate 81 close to the rear bottom plate 17. The oil filter is divided into a side oil filter 82 and a middle oil filter 83. The cross section of the side oil filter 82 is generally C-shaped to have an oil filter groove, and the oil filter groove is arranged along the length direction of the side oil filter 82. The cross section of the middle oil filter 83 is generally L-shaped. The middle oil filter 83 is installed in the middle of the mounting plate 81, and the side oil filter 82 is located on both sides of the middle oil filter 83, and the side oil filter 82 is symmetrically distributed on both sides of the middle oil filter 83. In this way, when the oil smoke enters the discharge flow channel 4 from the smoke collecting port 27, the airflow can be evenly distributed in the oil filter groove through the oil filter assembly 8.

[0066] Reference Figure 6In this embodiment, four groups of oil filter assemblies 8 are provided, and the four groups of oil filter assemblies 8 are arranged side by side in the discharge flow channel 4 along the length direction of the housing 1. In order to facilitate the collection of oil on the oil filter, an oil collecting box 84 is also provided on the bottom surface of the rear bottom plate 17, and the oil collecting box 84 is located at one end of the rear bottom plate 17 close to the first baffle 24. An oil collecting hole is provided above the oil collecting box 84, and the oil collecting hole is located below one end of the oil filter close to the rear bottom plate 17. After the oil adheres to the oil filter, it can gather in the oil collecting box 84 along the inclination direction of the oil filter. In another embodiment, each group of oil filter assemblies 8 is provided with an oil collecting box 84.

[0067] Reference Figure 7 In order to facilitate the taking and placing of the oil filter, a handle is provided on the side oil filter 82 located at the edge of the mounting plate 81, and the handle is located on the side of the side oil filter 82 away from the mounting plate 81.

[0068] Reference Figure 6 , the UV photolysis component 9 is located above the oil filter component 8. The UV photolysis component 9 includes two lamp racks 91 and a plurality of UV lamp tubes 92. The lamp rack 91 is installed at the bottom of the top plate 21 of the housing 1. Both ends of the UV lamp tubes 92 are installed on the lamp racks 91 respectively. The length direction of the UV lamp tubes 92 is consistent with the horizontal direction of the housing 1. The UV lamp tubes 92 are located below the exhaust port 112. When the oil smoke is filtered by the oil filter component 8 and reaches the UV lamp tubes 92, the ultraviolet light emitted by the UV lamp tubes 92 photolyzes the oil molecules, converting the high molecular weight oil smoke molecules into harmless low molecular weight gases, thereby achieving the purpose of further purifying the oil smoke and removing the odor of the oil smoke.

[0069] Reference Figure 5 In order to facilitate the maintenance of the UV lamp 92, a UV door 93 is provided on the first connecting section 231 of the rear baffle 23. The UV door 93 is generally rectangular and is detachably connected to the first connecting section 231 by bolts. When the UV lamp 92 needs to be maintained, the UV door 93 can be removed.

[0070] Reference Figure 1 A control panel 122 is provided on one end of the front panel 12 close to the first panel 14. The control panel 122 is electrically connected to the exhaust fan 20, the lighting tube and the UV lamp 92 respectively, so that the exhaust fan 20 can be exhausted, the lighting tube and the UV lamp 92 can be turned on and off by operating the control panel 122.

[0071] The implementation principle of a range hood for accelerating the collection of oil smoke in the embodiment of the present application is as follows:

[0072] (1) Air intake: When the exhaust fan 20 is working, the airflow enters the air supply channel 5 from the air supply port 111. Part of the airflow entering the air supply channel 5 enters the air guide cavity 28 and the inlet cavity 6, and is ejected from the jet hole 221 and the horizontal jet hole 242 respectively. Part of the airflow flows into the room from the diversion hole 121 of the front panel 12, and the other part is ejected from the vertical jet hole 161 of the front bottom panel 16 to form a vertical air curtain.

[0073] (2) Collecting oil smoke: The oil smoke enters the smoke collecting chamber 3 from the suction port 26, and a part of the oil smoke directly enters the smoke collecting port 27; a part of the oil smoke flows along the guide wall to the smoke guide plate 222, and the smoke guide plate 222 guides the oil smoke to the direction of the smoke collecting port 27; the other part of the oil smoke is pulled from the smoke collecting chamber 3 to the smoke collecting port 27 by the airflow ejected from the transverse jet hole 242 and the jet hole 221;

[0074] (3) Filtering oil smoke: The oil smoke enters the exhaust flow channel 4 from the smoke collecting port 27. After being physically filtered by the oil filter sheet, the UV lamp tube 92 performs photolysis on the oil smoke, thereby further purifying the oil smoke.

[0075] (4) Exhaust: The oil smoke is decomposed by the UV lamp tube 92 and then discharged from the exhaust port 112.

[0076] In the embodiment of the present application, the impact force and negative pressure adsorption force generated by the airflow ejected from the jet hole 221 and the lateral jet hole 242 can quickly gather the oil smoke to the smoke collecting port 27, reduce the escape of the oil smoke, and thus improve the collection efficiency of the oil smoke by the range hood.

[0077] The embodiment of the present application provides a process method for accelerating the collection of oil smoke.

[0078] A range hood for accelerating the collection of oil smoke comprises the following steps:

[0079] S1: exhaust port 112 draws air, and the oil smoke enters the smoke hood 2 from the suction port 26;

[0080] S2: airflow enters the smoke collecting chamber 3 from the air supply port 111, and draws the oil smoke in the smoke collecting chamber 3 to the smoke collecting port 27;

[0081] S21: The exhaust fan 20 works, the airflow enters the air guide cavity 28, and is ejected from the air jet hole 221 toward the smoke collecting port 27, drawing the oil smoke in the smoke collecting cavity 3 to the smoke collecting port 27. Meanwhile, the smoke guide plate 222 guides the oil smoke to the smoke collecting port 27;

[0082] S22: The airflow of the air guide cavity 28 is ejected from the transverse jet hole 242, and the oil smoke is drawn to the smoke collecting cavity 3;

[0083] S23: Air flows into the air supply channel 5 from the air supply port 111, and the air flows into the room from the diversion hole 121, and is ejected downward from the vertical jet hole 161 to form a vertical wind curtain.

[0084] S3: The oil smoke is discharged from the exhaust port 112.

[0085] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same parts are represented by the same figure numerals. It should be noted that the words "upper" and "lower" used in the above description refer to the directions in the drawings, and the words "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively. Therefore: All equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A range hood for accelerating the collection of oil smoke, characterized in that: include: A casing (1), wherein the top of the casing (1) is provided with an upper panel (11), the upper panel (11) being provided with an air supply port (111) for inhaling air and an air exhaust port (112) for exhausting oil smoke, the air exhaust port (112) and the air supply port (111) being respectively provided on both sides of the upper panel (11) in a width direction; A smoke collecting hood (2) is arranged inside the casing (1), the smoke collecting hood (2) having a smoke collecting chamber (3) and an air guiding chamber (28), the smoke collecting hood (2) having an inlet (26) for allowing oil smoke to enter the lower end of the smoke collecting chamber (3) and a smoke collecting port (27) for allowing oil smoke in the smoke collecting chamber (3) to enter the exhaust port (112), the smoke collecting hood (2) is provided with an exhaust fan (20), the air outlet end of the exhaust fan (20) is connected to the air guiding chamber (28); a plurality of jet holes (221) are provided on the smoke collecting hood (2), the jet holes (221) are located on a side of the smoke collecting hood (2) away from the smoke collecting port (27), the jet holes (221) are connected to the air guiding chamber (28), and the openings of the jet holes (221) are arranged toward the smoke collecting port (27); The smoke collecting chamber (3) has a guide wall, the guide wall is located on the side of the smoke collecting hood (2) opposite to the side where the smoke collecting port (27) is located, the guide wall is provided with a smoke guide plate (222), and the smoke guide plate (222) is inclined from a direction away from the guide wall to a direction close to the smoke collecting port (27); An air supply channel (5) is formed between the smoke collecting hood (2) and the casing (1); an air inlet end of the exhaust fan (20) is located in the air supply channel (5); the casing (1) has an air inlet, and the air inlet is communicated with the air supply channel (5); the casing (1) has a front bottom plate (16), the front bottom plate (16) is located on a side of the smoke collecting chamber (3) away from the smoke collecting port (27), the front bottom plate (16) is provided with a vertical jet hole (161) for forming a vertical wind curtain, and the vertical jet hole (161) is communicated with the air supply channel (5); The casing (1) has a front panel (12), and a plurality of flow diversion holes (121) are provided on the front panel (12), and the flow diversion holes (121) are connected to the air supply channel (5); The smoke collecting hood (2) is provided with a plurality of transverse jet holes (242), the transverse jet holes (242) are in communication with the air guide cavity (28), and the openings of the transverse jet holes (242) face the interior of the smoke collecting hood (2); An exhaust flow channel (4) is formed between the casing (1) and the smoke collecting hood (2), the exhaust flow channel (4) being in communication with the smoke collecting port (27) and the exhaust port (112) respectively, an oil filter assembly (8) being arranged in the exhaust flow channel (4), the oil filter assembly (8) comprising a plurality of oil filter sheets, the oil filter sheets having oil filter grooves.

2. A range hood for accelerating oil fume collection according to claim 1, characterized in that: The oil filter is arranged obliquely, and an oil collecting box (84) is arranged at the bottom of the oil filter.

3. The range hood for accelerating oil fume collection according to claim 1, characterized in that: A UV photolysis component (9) is arranged in the discharge flow channel (4).

4. A process for accelerating the collection of oil smoke, characterized in that: A range hood for accelerating oil fume collection according to claim 1 comprises the following steps: S1: exhaust gas is discharged from the exhaust port (112), and the oil smoke enters the smoke collecting hood (2) from the suction port (26); S2: airflow enters the smoke collecting chamber (3) from the air supply port (111), and draws the oil smoke in the smoke collecting chamber (3) to the smoke collecting port (27); S3: The oil smoke is discharged from the exhaust port (112).

5. The process for accelerating the collection of oil smoke according to claim 4, characterized in that S2 include: S21: the exhaust fan (20) is in operation, airflow enters the air guide cavity (28), and is ejected from the air jet hole (221) toward the smoke collecting port (27), thereby drawing the oil smoke in the smoke collecting cavity (3) to the smoke collecting port (27). Meanwhile, the smoke guide plate (222) guides the oil smoke to the smoke collecting port (27); S22: the airflow of the air guide cavity (28) is ejected from the transverse jet hole (242), and the oil smoke is drawn to the smoke collecting cavity (3); S23: Air is drawn into the air supply channel (5) from the air supply port (111), and the air flows into the room from the diversion hole (121), and is simultaneously ejected downward from the vertical jet hole (161) to form a vertical wind curtain.

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