A low-oil-smoke cooking appliance

Abstract

The application discloses a low-oil-smoke cooking utensil, which comprises a utensil body and an oil-smoke suction device arranged on the side of the utensil body, wherein the oil-smoke suction device comprises a shell and a centrifugal fan arranged in the shell; the shell is provided with an air inlet and an air outlet; and the shell further comprises a separation cylinder communicated between the centrifugal fan and the air outlet; the centrifugal fan performs first spiral separation on oil smoke entering the centrifugal fan from the air inlet, and sends the oil smoke subjected to the first spiral separation into the separation cylinder for second spiral separation; and the oil smoke subjected to the second spiral separation is discharged to the air outlet. The low-oil-smoke cooking utensil can ensure the smoke suction effect and be suitable for different scenes by arranging the oil-smoke suction device on the side of the utensil body; in addition, the oil smoke particles can be effectively removed by performing twice spiral separation on the oil smoke, so that the purification effect on the oil smoke is improved, indoor pollution is avoided, and the physical and mental health of the user is protected.

Description

[Technical Field]

[0001] This invention relates to the field of kitchen appliance technology, and in particular to a low-smoke cooking appliance. [Background Technology]

[0002] Many cooking appliances produce fumes during cooking, but traditional cooking appliances do not have fume extraction capabilities. To remove these fumes, they need to be placed under a range hood in the kitchen. However, current range hoods are generally fixed installations that are paired with gas stoves. Ordinary ceiling-mounted range hoods, when used with cooking appliances, cannot achieve the desired fume extraction effect, resulting in poor smoke removal. Furthermore, many apartments do not even have range hoods installed. As a result, the fumes produced when using cooking appliances can cause unpleasant odors in the room and on the users, thus reducing the user experience and failing to meet market demands. [Summary of the Invention]

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a low-smoke cooking appliance. By placing an oil fume extraction device on the side of the appliance body, the smoke extraction effect can be guaranteed and it can be used in different scenarios. In addition, by performing two spiral separations on the oil fumes, oil fume particles can be effectively removed, thereby improving the purification effect of oil fumes, avoiding indoor pollution and protecting the physical and mental health of users.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A low-smoke cooking appliance includes an appliance body and a fume extraction device disposed on the side of the appliance body. The fume extraction device includes a housing and a centrifugal fan disposed within the housing. The housing has an air inlet and an air outlet. The housing also includes a separator cylinder connecting the centrifugal fan and the air outlet. The centrifugal fan performs a first spiral separation on the fumes entering the centrifugal fan through the air inlet, and sends the fumes that have undergone the first spiral separation into the separator cylinder for a second spiral separation. After the second spiral separation, the fumes are discharged to the air outlet.

[0006] Furthermore, the centrifugal fan has an exhaust section that penetrates the side wall of the separation cylinder, and the oil fumes enter the separation cylinder from the exhaust section along the tangential direction of the side wall of the separation cylinder.

[0007] Furthermore, the separation cylinder includes a vertically arranged outer cylinder and an inner cylinder. The outer cylinder forms a sealed first separation chamber inside. The exhaust section is located near the top of the outer cylinder and communicates with the first separation chamber. The top of the inner cylinder is provided with a first ventilation hole communicating with the air outlet. The bottom of the inner cylinder is inserted into the first separation chamber and extends downward. The inner cylinder wall is provided with a second ventilation hole communicating with the first separation chamber.

[0008] Furthermore, the top of the outer cylinder is a closed end, and the bottom of the outer cylinder is an open end. The shell contains a purification liquid with a liquid level higher than the open end, so that the first separation chamber is formed inside the outer cylinder.

[0009] Furthermore, the bottom end of the inner cylinder is open to form the second ventilation hole, and the bottom end of the inner cylinder is higher than the liquid level of the purified liquid; or the inner cylinder is a cylinder with an open top surrounded by a filter screen, the filter screen has mesh holes, and the mesh holes form the second ventilation hole.

[0010] Furthermore, the inner wall of the outer cylinder is provided with a plurality of circumferentially spaced turbulence ribs, which extend vertically or obliquely.

[0011] Furthermore, the separation cylinder is arranged vertically, and a sealed separation chamber is formed inside the separation cylinder. The exhaust section is located near the top of the separation cylinder, and the bottom of the separation cylinder is provided with a first ventilation hole that communicates with the air outlet.

[0012] Furthermore, the fume extraction device also includes a partition that divides the interior of the housing into a liquid storage chamber and a filter chamber. The liquid storage chamber contains a purification liquid, and the centrifugal fan is located in the liquid storage chamber. The air outlet and the first ventilation hole are respectively connected to the filter chamber. The filter chamber is equipped with a filter assembly, and the fumes discharged from the first ventilation hole are filtered by the filter assembly and then discharged from the air outlet.

[0013] Furthermore, the fume extraction device also includes a spraying device that sprays the purified liquid into the separation cylinder and the filter chamber.

[0014] Furthermore, the centrifugal fan includes a volute and a blower, and the volute is provided with an oil drain port.

[0015] The beneficial effects of this invention are:

[0016] In this invention, the cooking fumes enter the centrifugal fan through the air inlet and undergo high-speed spiral motion under the action of the centrifugal fan. This causes the oil fume particles to be thrown onto the volute of the centrifugal fan under the action of centrifugal force, thus achieving the first spiral separation treatment of the oil fume. After the first spiral separation treatment, the oil fume enters the separation cylinder and undergoes high-speed spiral motion again to further throw the oil fume particles onto the side wall of the separation cylinder, thus achieving the second spiral separation treatment of the oil fume. After the oil fume undergoes two spiral separation treatments, most of the oil fume particles can be effectively removed, thereby improving the purification effect of oil fume, avoiding indoor pollution, and protecting the physical and mental health of users.

[0017] The centrifugal fan has an exhaust section that penetrates the side wall of the separator. Oil fumes enter the separator tangentially along the side wall of the separator from the exhaust section. By controlling the direction of the oil fumes entering the separator, the fumes can be made to move in a high-speed spiral motion along the side wall of the separator, thus achieving a second spiral separation. This eliminates the need for a spiral duct inside the separator to guide the oil fumes in this spiral motion, thereby simplifying the separator's structure.

[0018] The separator comprises a vertically arranged outer cylinder and an inner cylinder. The outer cylinder forms a sealed first separation chamber. An exhaust section is positioned near the top of the outer cylinder and communicates with the first separation chamber. The top of the inner cylinder has a first ventilation hole communicating with an air outlet. The bottom of the inner cylinder is inserted into the first separation chamber and extends downwards. The inner cylinder wall has a second ventilation hole communicating with the first separation chamber. By positioning the exhaust section near the top of the outer cylinder, the path of the oil fume flowing downwards in the first separation chamber is extended, thereby improving the removal effect of oil fume particles. Furthermore, after oil-gas separation in the first separation chamber, the oil fume can enter the inner cylinder through the second ventilation hole. The design of the inner cylinder further extends the flow path of the oil fume, allowing the inner wall of the inner cylinder to capture the oil fume again for further removal of oil fume particles, while also reducing the space occupied by the separator, thus reducing the volume of the fume extraction device.

[0019] The top of the outer cylinder is closed, while the bottom is open. The shell contains a purified liquid with a level higher than the open end, creating a first separation chamber inside the outer cylinder. This design not only seals the bottom of the outer cylinder with the purified liquid, allowing the oily fumes to continue entering the inner cylinder completely, but also effectively collects oily fume particles dripping from both the inner and outer cylinder walls, discharging these particles later when the purified liquid is discharged.

[0020] The bottom of the inner cylinder is open to form a second ventilation hole, and the bottom of the inner cylinder is higher than the liquid level of the purification liquid. This design is simple in structure and has a low manufacturing cost. Alternatively, the inner cylinder is a cylinder with an open top formed by a filter screen. The upper part of the filter screen is open to form a first ventilation hole that communicates with the air outlet. The filter screen has mesh holes, which form the second ventilation hole. This design allows the filter screen to filter the oil fumes again to further remove oil fume particles, thereby improving the purification effect of the oil fumes.

[0021] Multiple circumferentially spaced baffles are protruding from the inner wall of the outer cylinder, extending vertically or obliquely. This design disrupts the flow direction of the oil fumes, thereby increasing the number of impacts between the oil fume particles and the wall of the first separation chamber. This allows the oil fume particles to be captured and collected by the baffles and the inner wall of the outer cylinder, flowing into the bottom of the first separation chamber, thus further improving the removal efficiency of the oil fume particles.

[0022] The separator is vertically oriented, forming a sealed separation chamber inside. The exhaust section is located near the top of the separator, and the bottom of the separator has a first ventilation hole that connects to the air outlet. This design results in a simple structure and lower manufacturing costs.

[0023] The fume extraction device also includes a partition that divides the interior of the housing into a liquid storage chamber and a filter chamber. The liquid storage chamber contains a purification liquid, and a centrifugal fan is located within it. The air outlet and the first ventilation hole are connected to the filter chamber, which contains a filter assembly. The fumes discharged through the first ventilation hole are filtered by the filter assembly before being discharged through the air outlet. This design allows the filter assembly to further purify and filter the fumes, thereby further reducing the content of oil fume particles in the gas discharged from the air outlet.

[0024] The fume extraction device also includes a spray system that sprays purifying liquid into the separation cylinder and filter chamber. This design not only captures oil fume particles in the gas but also cleans the inner walls of the separation cylinder and filter chamber.

[0025] The centrifugal fan consists of a volute and a blower, with an oil drain port on the volute. This design allows the oil fume particles separated by the first spiral to drip through the oil drain port into the oil collection box or purification liquid at the bottom of the casing, preventing them from adhering to the volute and causing inconvenience in later cleaning and reducing the purification effect of the oil fumes.

[0026] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. [Attached Image Description]

[0027] The invention will be further described below with reference to the accompanying drawings:

[0028] Figure 1 This is a structural diagram of the low-smoke cooking appliance in Embodiment 1 of the present invention;

[0029] Figure 2 This is a schematic diagram of the internal structure of the shell in Embodiment 1 of the present invention. Figure 1 ;

[0030] Figure 3 This is a schematic diagram of the internal structure of the shell in Embodiment 1 of the present invention. Figure 2 .

[0031] Figure label:

[0032] 100. Appliance body; 200. Housing; 201. Smoke guide plate; 210. Air inlet; 220. Air outlet; 230. Partition; 240. Liquid storage chamber; 250. Filter chamber; 260. Drain outlet; 300. Centrifugal fan; 310. Fan; 320. Volute; 321. Exhaust section; 322. Oil drain outlet; 400. Separator cylinder; 410. Outer cylinder; 411. Baffle rib; 420. Inner cylinder; 421. First ventilation hole; 422. Support net; 423. Filter screen sleeve; 500. Air duct; 600. Filter assembly; 610. Moisture-absorbing sponge; 620. HEPA filter; 630. Activated carbon filter element; 640. UV lamp assembly; 650. Negative ion generator; 700. Water pump.

Detailed Implementation Methods

[0033] This invention provides a low-smoke cooking appliance, including an appliance body and a fume extraction device disposed on the side of the appliance body. The fume extraction device includes a housing and a centrifugal fan disposed within the housing. The housing has an air inlet and an air outlet. The housing also includes a separator cylinder connecting the centrifugal fan and the air outlet. The centrifugal fan performs a first spiral separation on the fumes entering the centrifugal fan through the air inlet, and sends the fumes after the first spiral separation into the separator cylinder for a second spiral separation. After the second spiral separation, the fumes are discharged to the air outlet.

[0034] In this invention, the cooking fumes enter the centrifugal fan through the air inlet and undergo high-speed spiral motion under the action of the centrifugal fan. This causes the oil fume particles to be thrown onto the volute of the centrifugal fan under the action of centrifugal force, thus achieving the first spiral separation treatment of the oil fume. After the first spiral separation treatment, the oil fume enters the separation cylinder and undergoes high-speed spiral motion again to further throw the oil fume particles onto the side wall of the separation cylinder, thus achieving the second spiral separation treatment of the oil fume. After the oil fume undergoes two spiral separation treatments, most of the oil fume particles can be effectively removed, thereby improving the purification effect of oil fume, avoiding indoor pollution, and protecting the physical and mental health of users.

[0035] The technical solutions of the embodiments of the present invention will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present invention.

[0036] Example 1

[0037] Reference Figures 1 to 3As shown, the low-smoke cooking appliance in this embodiment includes an appliance body 100 and a fume extraction device disposed on the side of the appliance body 100. The fume extraction device is preferably located on the rear side of the appliance body 100. The fume extraction device includes a housing 200 and a centrifugal fan 300 disposed within the housing 200. The housing 200 is provided with an air inlet 210 and an air outlet 220, wherein the air inlet 210 is disposed on the front side of the housing 200. A smoke guide plate 201 is also provided on the front side of the housing 200 to guide the fumes into the air inlet 210. The centrifugal fan 300 includes a fan 310 and a volute 320. The volute 320 is provided with an air intake corresponding to the air inlet 210. The housing 200 also includes a separator 400 that connects the centrifugal fan 300 and the air outlet 220. The centrifugal fan 300 performs a first spiral separation on the oil fumes entering the centrifugal fan 300 through the air inlet 210, and sends the oil fumes that have undergone the first spiral separation into the separator 400 for a second spiral separation. After the oil fumes undergo the second spiral separation, they are discharged to the air outlet 220.

[0038] Therefore, in this embodiment, after the oil fumes enter the centrifugal fan 300 through the air inlet 210, they first undergo high-speed spiral motion under the action of the centrifugal fan 300, so that the oil fume particles are thrown onto the volute 320 under the action of centrifugal force, thereby achieving the first spiral separation treatment of the oil fumes. After the first spiral separation treatment, the oil fumes enter the separation cylinder 400 and undergo high-speed spiral motion again to further throw the oil fume particles onto the side wall of the separation cylinder 400, thereby achieving the second spiral separation treatment of the oil fumes. After the oil fumes undergo two spiral separation treatments, most of the oil fume particles can be effectively removed, thereby improving the purification effect of oil fumes, avoiding indoor pollution, and protecting the physical and mental health of users.

[0039] Specifically, in this embodiment, the separation cylinder 400 includes a vertically arranged outer cylinder 410 and an inner cylinder 420. The interior of the outer cylinder 410 forms a sealed first separation chamber. The volute 320 has an exhaust section 321 that penetrates the side wall of the outer cylinder 410. The exhaust section 321 is located between the outer cylinder 410 and the inner cylinder 420 and is positioned close to the outer cylinder 410. This allows the fumes discharged from the exhaust section 321 to enter the outer cylinder 410 along the tangential direction of the side wall of the outer cylinder 410 and form a high-speed spiral motion as they flow downwards, thereby achieving a second spiral separation. There is no need to set up a spiral duct inside the outer cylinder 410 to guide the fumes to spiral motion. This simplifies the structure of the outer cylinder 410. The top of the inner cylinder 420 is provided with a first ventilation hole 421 communicating with the air outlet 220. The bottom end of the inner cylinder 420 is inserted into the first separation chamber and extends downward. The cylinder wall of the inner cylinder 420 is provided with a second ventilation hole communicating with the first separation chamber. In this way, the oil fumes after the second spiral separation can enter the inner cylinder 420 through the second ventilation hole. The design of the inner cylinder can not only further extend the flow path of the oil fumes, allowing the inner wall of the inner cylinder 420 to capture the oil fumes again, so as to further remove oil fume particles, but also reduce the overall space occupied by the separation cylinder 400, thereby reducing the volume of the oil fume extraction device. Preferably, the exhaust section 321 is set near the top of the outer cylinder 410. This design can extend the path of the oil fumes flowing downward spirally in the first separation chamber, thereby improving the oil fume particle removal effect.

[0040] In this embodiment, the top of the outer cylinder 410 is a closed end, and the bottom of the outer cylinder 410 is an open end. The shell 200 contains a purification liquid with a liquid level higher than the open end, so that the outer cylinder 410 forms the aforementioned sealed first separation chamber. The purification liquid is mainly composed of water, surfactant, defoamer, and disinfectant. This design not only makes the purification liquid form a sealing effect on the bottom of the outer cylinder 410, so that the oil fume exhaust gas can continue to completely enter the inner cylinder 420, but also can effectively receive the oil fume particles dripping from the side wall of the inner cylinder 420 and the side wall of the outer cylinder 410, and discharge the oil fume particles when the purification liquid is discharged later.

[0041] To further enhance the purification effect of oil fumes, the inner cylinder 420 in this embodiment is a cylinder with an open top, formed by a filter screen. The filter screen includes a stainless steel support mesh 422 and a stainless steel filter sleeve 423. A second separation chamber is formed inside the support mesh 422, and the top of the second separation chamber is open to form a first ventilation hole 421. The filter sleeve 423 is fitted on the outer periphery of the support mesh 422. The mesh strength of the support mesh 422 is greater than that of the filter sleeve 423. The meshes of the support mesh 422 and the filter sleeve 423 are connected to form the second ventilation hole. This design allows the filter screen to cool the oil fumes and the filter sleeve 423 to further filter the oil fumes, thereby removing oil fume particles and improving the purification effect of oil fumes. The mesh size of the filter sleeve 423 is 50 to 200 mesh, preferably 100 to 160 mesh. This design can improve the filtration effect of oil fume particles and ensure the structural strength of the filter sleeve 423.

[0042] It is understood that in other embodiments of the present invention, the inner cylinder may also be a cylindrical structure formed by a metal mesh, which is closed at the bottom and open at the top. A second separation cavity is formed inside the metal mesh, and a first ventilation hole is formed at the open top of the metal mesh. The mesh openings of the metal mesh form a second ventilation hole and serve to filter oil fume particles. That is, the side wall of the inner cylinder is a single-layer structure. This design can further reduce the manufacturing cost of the inner cylinder.

[0043] It is understood that in other embodiments of the present invention, in order to simplify the structure of the inner cylinder and reduce manufacturing costs, the inner cylinder is made of a metal plate with an open top forming a first ventilation hole and an open bottom forming a second ventilation hole. The bottom of the inner cylinder is higher than the liquid level of the purification liquid, so that the oil fumes in the first separation chamber enter the inner cylinder through the bottom of the inner cylinder. In addition, the metal plate can also cool, filter and capture the oil fumes to further improve the purification effect of the oil fumes.

[0044] In addition, in this embodiment, the inner wall of the outer cylinder 410 is provided with a plurality of circumferentially spaced turbulence ribs 411. The turbulence ribs 411 extend vertically or obliquely, and the height of the turbulence ribs 411 protruding from the inner wall of the outer cylinder is 0.5mm to 5mm. This design can disrupt the flow direction of the oil fumes by the turbulence ribs 411, thereby increasing the number of collisions between the oil fume particles and the wall of the first separation chamber. As a result, the oil fume particles can be captured and collected by the turbulence ribs 411 and the inner wall of the outer cylinder 410 and flow into the bottom of the first separation chamber and drip into the purification liquid, thereby further improving the removal effect of oil fume particles.

[0045] In addition, in this embodiment, the interior of the housing 200 is provided with a partition 230. The partition 230 includes a first plate extending left and right and a second plate extending front and back. The outer cylinder 410 and the first plate are spaced apart left and right, and the second plate is located between the outer cylinder 410 and the first plate. The partition 230 divides the interior of the housing 200 to form a liquid storage chamber 240 and a filter chamber 250. The filter chamber 250 is formed behind the first plate, while the other parts inside the housing form the liquid storage chamber. The liquid storage chamber 240 contains purified liquid. The centrifugal fan 300 is fixed on the first plate and located in front of the first plate. A flow gap is provided between the second plate and the bottom wall of the housing 200 to allow the liquid storage chamber 240 and the filter chamber 250 to communicate. The first ventilation hole 421 is open to... The air duct 500 is connected to the filter chamber 250. The air outlet 220 is located on the wall of the filter chamber 250 and is positioned opposite to the air outlet end of the air duct 500. The filter chamber 250 is equipped with a filter assembly 600, which includes a moisture-absorbing sponge 610, a HEPA filter 620, an activated carbon filter 630, a UV lamp assembly 640, and a negative ion generator 650 located at the air outlet 220, arranged sequentially and at intervals along the air outlet direction. The oil fumes entering the filter chamber 250 from the air duct 500 will pass through the filter assembly 600 as they flow towards the air outlet 220. The filter assembly 600 can further purify and deodorize the oil fume gas, thereby further reducing the content of oil fume particles in the gas discharged from the air outlet 220.

[0046] During the first spiral separation process, oil fume particles are captured and adsorbed onto the inner wall of the volute 320. In order to avoid oil fume particles adhering to the volute 320 and causing inconvenience in later cleaning and reducing the purification effect of oil fume, the lowest point of the volute 320 in this embodiment is also provided with an oil drain port 322, so that the oil on the inner wall of the volute 320 drips into the purification liquid through the oil drain port 322 and is discharged with the later discharge of the purification liquid.

[0047] Finally, the fume extraction device in this embodiment also includes a spraying device, which includes a water pump 700 and multiple pipelines. Nozzles are respectively provided on the outer cylinder 410, the filter chamber 250, and the volute 320. The multiple pipelines are respectively connected to multiple nozzles so that the water pump sprays the purification liquid into the outer cylinder 410, the filter chamber 250, and the volute 320, thereby cleaning the inner wall of the outer cylinder 410, the inner wall of the filter chamber 250, and the inner wall of the volute 320. In addition, during the process of spraying the purification liquid into the filter chamber 250, the purification liquid can also capture oil fume particles in the fume gas to further improve the purification effect of the fume.

[0048] In order to replace the purification fluid, the housing 200 is also provided with a filling port and a drain port 260. The drain port 260 is connected to the filter chamber 250. After cleaning the inner wall of the outer cylinder 410, the inner wall of the filter chamber 250 and the inner wall of the volute 320, the purification fluid can be discharged from the drain port 260, and then new purification fluid can be added into the housing 200 from the filling port.

[0049] It is understood that in other embodiments of the present invention, the exhaust section is located between the outer cylinder and the inner cylinder. The exhaust section penetrates the top wall of the outer cylinder and is inclined downward toward the side wall of the outer cylinder, so that the oil fumes enter the outer cylinder along the tangential direction of the side wall of the outer cylinder and form a spiral high-speed motion when flowing downward, thereby achieving a second spiral separation.

[0050] It is understood that in other embodiments of the present invention, the exhaust section of the volute can also be located above the axis of the volute, so that the fumes are discharged from the volute in a counterclockwise rotation manner. In this way, the height of the outer cylinder can be further extended, thereby extending the spiral motion length of the fumes in the first separation chamber, thereby increasing the separation effect of the fumes particles.

[0051] Example 2

[0052] Compared with Embodiment 1, the difference in this embodiment is that a sealed separation chamber is formed inside the separation cylinder, that is, the outer cylinder is retained and the inner cylinder is omitted. At this time, the bottom of the separation cylinder is provided with a first ventilation hole that communicates with the air outlet. The location of the exhaust section is set as in Embodiment 1. This design makes the structure of the separation cylinder simpler and the manufacturing cost lower.

[0053] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the present invention will be included within the scope of the claims.

Claims

1. A low-smoke cooking appliance, comprising an appliance body and a fume extraction device disposed on the side of the appliance body, the fume extraction device comprising a housing and a centrifugal fan disposed within the housing, the housing having an air inlet and an air outlet, characterized in that, The housing also includes a separation cylinder connecting the centrifugal fan and the air outlet. The centrifugal fan performs a first spiral separation on the oil fumes entering the centrifugal fan through the air inlet, and sends the oil fumes after the first spiral separation into the separation cylinder for a second spiral separation. After the second spiral separation, the oil fumes are discharged to the air outlet. The separation cylinder includes a vertically arranged outer cylinder and an inner cylinder. The bottom end of the outer cylinder is an open end. The housing contains purified liquid with the liquid level higher than the open end. The oil fume extraction device also includes a partition that divides the interior of the housing into a liquid storage chamber and a filter chamber. The liquid storage chamber contains purified liquid. The partition includes a first plate extending left and right and a second plate extending front and back. The outer cylinder and the first plate are spaced left and right. The second plate is located between the outer cylinder and the first plate. The filter chamber is formed behind the first plate. A flow gap is provided between the second plate and the bottom wall of the housing to allow the liquid storage chamber and the filter chamber to communicate.

2. The low-smoke cooking appliance as described in claim 1, characterized in that, The centrifugal fan has an exhaust section that penetrates the side wall of the separator, and the oil fumes enter the separator from the exhaust section along the tangential direction of the side wall of the separator.

3. A low-smoke cooking appliance as described in claim 2, characterized in that, The outer cylinder forms a sealed first separation chamber inside. The exhaust section is located near the top of the outer cylinder and communicates with the first separation chamber. The top of the inner cylinder is provided with a first ventilation hole that communicates with the air outlet. The bottom of the inner cylinder is inserted into the first separation chamber and extends downward. The inner cylinder wall is provided with a second ventilation hole that communicates with the first separation chamber.

4. A low-smoke cooking appliance as described in claim 3, characterized in that, The top end of the outer cylinder is a closed end, so that the first separation cavity is formed inside the outer cylinder.

5. A low-smoke cooking appliance as described in claim 4, characterized in that, The bottom of the inner cylinder is open to form the second ventilation hole, and the bottom of the inner cylinder is higher than the liquid level of the purified liquid; or the inner cylinder is a cylinder with an open top surrounded by a filter screen, the filter screen has mesh holes, and the mesh holes form the second ventilation hole.

6. A low-smoke cooking appliance as described in claim 3, characterized in that, The inner wall of the outer cylinder is provided with a plurality of circumferentially spaced turbulence ribs, which extend vertically or obliquely.

7. A low-smoke cooking appliance as described in claim 2, characterized in that, The separation cylinder is arranged vertically, and a sealed separation chamber is formed inside the separation cylinder. The exhaust section is located near the top of the separation cylinder, and the bottom of the separation cylinder is provided with a first ventilation hole that communicates with the air outlet.

8. A low-smoke cooking appliance as described in any one of claims 3 to 7, characterized in that, The centrifugal fan is located in the liquid storage chamber. The air outlet and the first ventilation hole are respectively connected to the filter chamber. The filter chamber is equipped with a filter assembly. The oil fumes discharged from the first ventilation hole are filtered by the filter assembly and then discharged from the air outlet.

9. A low-smoke cooking appliance as described in claim 8, characterized in that, The fume extraction device also includes a spraying device, which sprays the purified liquid into the separation cylinder and the filter chamber.

10. A low-smoke cooking appliance as described in claim 1, characterized in that, The centrifugal fan includes a volute and a blower, and the volute is provided with an oil drain port.

Images