Oil fume purification system and cooking pot

Abstract

This invention relates to the field of cooking equipment technology, and more specifically to an oil fume purification system and a cooking pot. The oil fume purification system includes an air inlet disposed on one side wall of a smoke-proof frame and communicating with the cooking cavity; and an air outlet disposed on the other side wall of the smoke-proof frame and communicating with the cooking cavity. At least a portion of the air inlet and a portion of the air outlet are positioned opposite each other, and the air inlet and the air outlet are also connected by a guide duct, in which a fan and a filter assembly are installed. The preferred oil fume purification system of this invention can directionally attract and filter oil fumes, reducing the proportion of oil fumes in the environment and optimizing the user experience.

Description

Technical Field

[0001] This invention relates to the field of cooking equipment technology, and more specifically to an oil fume purification system and a cooking pot. Background Technology

[0002] Cooking appliances produce a lot of water mist and fumes during cooking, which carry the smell of the food into the ambient air. Normally, when cooking in the kitchen with the range hood on, these water mists and fumes can be exhausted outdoors through the range hood.

[0003] However, when cooking with cookware in places like restaurants and living rooms, such as when cooking hot pot or grilling meat on the dining table, the water vapor and fumes are scattered arbitrarily in the surrounding environment, causing environmental grease; moreover, these water vapors and fumes easily adhere to the user's clothes, resulting in a poor user experience. Summary of the Invention

[0004] One of the objectives of this invention is to address the shortcomings of existing technologies by providing an oil fume purification system that can directionally capture and filter oil fumes, reduce the proportion of oil fumes in the environment, and optimize the user experience.

[0005] The second objective of this invention is to provide a cooking pot equipped with the aforementioned oil fume purification system.

[0006] The technical solution of the present invention is as follows:

[0007] An oil fume purification system, comprising:

[0008] The air inlet is located on one side wall of the smoke-proof frame and is connected to the cooking cavity;

[0009] The air outlet is located on the other side wall of the smoke-proof frame and is connected to the cooking cavity;

[0010] At least some of the air inlets and some of the air outlets are positioned opposite each other, and the air inlets and the air outlets are also connected by a guide duct, in which a fan and a filter assembly are installed.

[0011] As a further preferred embodiment, the airflow duct is also equipped with a baffle plate.

[0012] As a further preferred embodiment, the baffle plate is provided with guide holes for airflow to pass through.

[0013] As a further preferred embodiment, the baffle plate is disposed between the fan and the air outlet.

[0014] As a further preferred embodiment, the filter assembly includes a filter support installed in the airflow duct, the filter support includes a plurality of limiting posts and filter elements connected to the limiting posts, the filter elements being at least partially opposite to the air inlet.

[0015] As a further preferred embodiment, the limiting post is provided with a limiting post partition portion that connects to the smoke isolation frame, and the limiting post partition portion is located on the side of the air inlet.

[0016] As a further preferred embodiment, the filter assembly also includes a cover plate located at the upper end of the filter screen, with both ends of the cover plate connected to two spaced-apart limiting posts, and the cover plate having a connecting end adapted to connect to the smoke isolation frame, the connecting position of the cover plate on the smoke isolation frame being above the air inlet.

[0017] As a further preferred embodiment, a base plate is provided at the lower end of the filter element. The two ends of the base plate are respectively connected to the two spaced-apart limiting posts, and the base plate has a base plate connecting end adapted to connect with the smoke isolation frame. The connecting position of the base plate connecting end on the smoke isolation frame is below the air inlet.

[0018] As a further preferred embodiment, a duct cover is provided below the cooking cavity, and a guide channel constituting part of the air duct is provided in the duct cover. One end of the guide channel is connected to the air outlet, and the other end is connected to the air inlet.

[0019] As a further preferred embodiment, the fan is installed in the guide channel.

[0020] As a further preferred embodiment, a main control component is installed in the air duct, the main control component is located between the air duct cover and the air outlet, and a main control cover is installed on the main control component to at least partially block the main control component and the air duct.

[0021] As a further preferred embodiment, the main control cover is provided with a drainage surface.

[0022] As a further preferred embodiment, a heat insulation frame is provided around the smoke isolation frame, and an air inlet slot is provided on one side wall of the heat insulation frame. The air inlet slot is at least partially opposite to the air inlet. An air outlet slot is provided on the other side wall of the heat insulation frame. The air outlet slot is at least partially opposite to the air outlet.

[0023] As a further preferred embodiment, a face frame is provided around the heat insulation frame, and there is a gap between the face frame and the heat insulation frame for heat insulation. An air inlet channel is formed between the air inlet slot and the face frame, which constitutes part of the airflow duct, and an air outlet channel is formed between the air outlet slot and the face frame, which constitutes part of the airflow duct.

[0024] As a further preferred embodiment, a sealing plate is provided between the heat insulation frame and the face frame. The sealing plate is placed on the side of the air inlet slot, with one end of the sealing plate connected to the heat insulation frame and the other end connected to the face frame.

[0025] A cooking pot that includes the oil fume purification system described in any of the above solutions.

[0026] The main beneficial effects of the above technical solution are as follows:

[0027] By operating a fan and driving airflow, the airflow carries the cooking fumes from the cooking cavity into the air inlet. The fumes are drawn in, flow through the air duct, and pass through the filter components in the air duct for filtration. Then, they are discharged from the air outlet back into the cooking cavity. This process of directional suction and filtration of cooking fumes reduces the proportion of fumes in the environment and optimizes the user experience.

[0028] Further or more detailed beneficial effects will be described in conjunction with specific embodiments in the detailed implementation. Attached Figure Description

[0029] The invention will be further described below with reference to the accompanying drawings:

[0030] Figure 1 This is a cross-sectional view of a cooking pot.

[0031] Figure 2 This is a schematic diagram of airflow.

[0032] Figure 3 This is a schematic diagram of the installation structure of the air duct cover.

[0033] Figure 4 This is a schematic diagram of the cutoff plate structure.

[0034] Figure 5 This is a schematic diagram of the air duct cover structure.

[0035] Figure 6 This is a schematic diagram showing the connection between the filter assembly and the smoke-proof frame.

[0036] Figure 7 This is a cross-sectional schematic diagram of the connection structure between the filter assembly and the smoke-proof frame.

[0037] Figure 8 This is a schematic diagram of the filter component structure.

[0038] Figure 9 This is a cross-sectional view of the main control component installation.

[0039] Figure 10 This is a schematic diagram of the main control cover plate being installed on the chassis assembly.

[0040] Figure 11 This is a schematic diagram showing the installation of the main control cover and the air duct cover on the chassis assembly.

[0041] Figure 12 This is a schematic diagram of the wind turbine installation structure.

[0042] Figure 13 This is a schematic diagram of the heat insulation frame structure.

[0043] Figure 14 This is a schematic diagram of the installation of the heat insulation frame on the chassis assembly.

[0044] Figure 15 This is a schematic diagram of the alignment and interlocking structure of the heat insulation frame ribs and the face frame ribs.

[0045] Figure 16 This is a schematic diagram of the face frame structure.

[0046] Figure 17 This is a schematic diagram of the cooking pot structure.

[0047] Figure 18 An exploded view of the components assembled in a cooking pot.

[0048] The diagram shows: chassis assembly a, heating element mounting plate b, heating element c, main control assembly d, duct assembly e, baffle plate e1, guide hole e11, overflow channel e12, mounting part e13, fan e2, duct cover e3, slot e31, duct cover top plate e32, top plate connection port e321, top plate support part e322, duct cover side plate e33, side plate support part e331, fume containment slot e34, fan cover e4, insulation frame f, air inlet slot f1, air outlet slot f2, insulation frame rib f3, insulation frame notch f31, insulation frame protrusion f32, face frame g, face frame rib g1, face frame notch g11, face frame protrusion g12, face frame cover g2, cover slot g21, filter assembly h, cover piece h1, cover piece connecting end h11, limiting post h2, limiting post partition h21, limiting post baffle h22, limiting post first connecting plate h23, limiting post second connecting plate h24, filter screen h3, bottom plate h4, bottom plate connecting end h41, oil collection tank h42, smoke isolation frame i, control panel assembly j, air inlet k, air outlet p, air guide duct m, air inlet channel m1, guide channel m2, air outlet channel m3, cooking cavity n, main control cover o, air diversion surface o1, main control air inlet o2, main control air outlet o3. Detailed Implementation

[0049] The present invention will be specifically illustrated below with reference to embodiments:

[0050] Example 1:

[0051] An oil fume purification system, primarily used in cooking pots. (See attached image) Figure 1 As shown, the cooking pot includes a base assembly a at the bottom, heating element mounting plates b are spaced apart on the base assembly a, heating elements c for cooking food are mounted on the heating element mounting plates b, and a smoke-proof frame i is arranged around the heating elements c. The upper surface of the heating elements c and the inner wall of the smoke-proof frame i together form a cooking cavity n with a top opening. A face frame g is arranged around the smoke-proof frame i, and a control panel assembly j for operation is provided on the face frame g.

[0052] As attached Figure 1 As shown, the fume system in this embodiment includes an air inlet k, an air outlet p, and a guide duct m that form a gas flow channel, a fan e2 that drives the airflow, and a filter assembly h that filters the fumes. The filter assembly h can be any device capable of filtering fumes. In this embodiment, as shown below, a filter screen h3 is preferably used as the filter body.

[0053] For details, see attached. Figure 1 As shown, the air inlet k is a grille with baffles, located on the right wall of the smoke-proof frame i on the right side of the cooking cavity n, and its left end is connected to the cooking cavity n. The air outlet p is also a grille with baffles, located on the left wall of the smoke-proof frame i on the left side of the cooking cavity n, and its right end is connected to the cooking cavity n. The air inlet k and air outlet p are positioned opposite each other, and their right ends are connected by a through-flow duct m, which is mostly located between the chassis assembly a and the heating element mounting plate b. The fan e2 and the filter assembly h are both installed in the through-flow duct m, and the filter assembly h includes a filter screen h3 for filtering oil fumes in the airflow.

[0054] During operation, fan e2 runs and drives the formation as shown in the attached image. Figure 2 The airflow shown depicts gas carrying cooking fumes being drawn in through the air inlet k, flowing through the guide duct m, passing through the filter component h within the guide duct m, and finally being discharged from the air outlet p into the cooking cavity n. This achieves directional suction and filtration of cooking fumes, reducing the proportion of cooking fumes in the environment and optimizing the user experience.

[0055] Meanwhile, since the air inlet k and the air outlet p are positioned opposite each other, the gas discharged along the air outlet p will drive the media (such as oil fumes and water mist) generated in the cooking cavity n to gather and flow towards the air inlet k, and then flow into the guide air duct m, be filtered by the filter component h, and then be discharged from the air outlet p; this is beneficial for the absorption of media (such as oil fumes and water mist), thereby reducing the amount of media (such as oil fumes and water mist) diffused into the environment, and further optimizing the customer's user experience.

[0056] Example 2:

[0057] Based on Example 1, it was found that the gas discharged from the air outlet p will to some extent push the medium (such as oil fumes and water mist) generated in the cooking cavity n to gather and flow towards the air inlet k. However, if the airflow intensity discharged from the air outlet p is too high, such as when working in a high-volume mode, it is easy to blow away the medium (such as oil fumes and water mist) generated in the cooking cavity n, which will have an adverse effect on the suction effect of the air inlet k. Therefore, it is necessary to control the airflow intensity.

[0058] Therefore, a flow-blocking plate e1 is added to this embodiment. (See attached...) Figure 1 As shown, the baffle plate e1 is installed in the airflow guide duct m, and the baffle plate e1 is provided with guide holes e11 for airflow to pass through from right to left. In this way, when the airflow passes through the baffle plate e1, part of the airflow is blocked, and part of the airflow is diverted and flows out through the guide holes e11, thereby blocking the airflow in the airflow guide duct m, reducing the intensity of the exhaust air, and thus reducing the impact of the exhaust air on the smoke extraction effect of the air inlet, and improving the smoke extraction effect.

[0059] As attached Figure 1 As shown, the baffle plate e1 is set between the fan e2 and the air outlet p to prevent the baffle plate e1 from obstructing the air intake channel between the fan e2 and the air inlet k.

[0060] Furthermore, considering that the airflow is formed by drawing air into the cooking cavity n, it possesses a certain heat characteristic and tends to rise and accumulate at the top of the airflow guide duct m. (See attached image) Figure 1 As shown, in this embodiment, the upper end of the interceptor plate e1 is connected to the top of the guide duct m, which can better block the airflow according to the airflow characteristics to reduce the airflow intensity.

[0061] Meanwhile, a gap is maintained between the lower end of the baffle plate e1 and the bottom of the guide duct m, which serves as the overflow channel e12. This allows some airflow to quickly overflow from the overflow channel e12 below when the guide hole e11 on the baffle plate e1 becomes blocked or the flow rate in the guide duct m becomes too high, preventing gas from accumulating and expanding in the guide duct m and hindering the intake effect of the air inlet k.

[0062] The aforementioned filter component h is placed between the baffle plate e1 and the air inlet k so that the airflow passing through the baffle plate e1 is filtered, reducing the content of oil fumes in the airflow flowing to the baffle plate e1, thereby reducing the pollution of the baffle plate e1 by oil fumes and reducing the possibility of oil fumes clogging the guide holes e11 in the baffle plate e1.

[0063] Furthermore, as shown in the appendix Figure 1 and attached Figure 3 As shown, a duct cover plate e3 is connected to the lower end of the heating element mounting plate b. A partial airflow duct m is formed between the duct cover plate e3 and the chassis assembly a. A baffle plate e1 is installed at the end of the duct cover plate e3 near the air outlet p. More precisely, as shown in the attached diagram... Figure 1 and attached Figure 3 As shown, the interceptor plate e1 is fitted onto the left end face of the duct cover plate e3. Compared to directly embedding the interceptor plate e1 into the air guide duct m, this independent support installation structure for the interceptor plate e1, as shown in the air guide cover plate e3, makes the installation of the interceptor plate e1 more stable. At the same time, it is equivalent to fitting the interceptor plate e1 to cover the left end face of this part of the air guide duct m, which can achieve better obstruction of airflow.

[0064] As attached Figure 3 and attached Figure 4 As shown, due to the limited space of the interceptor plate e1, in order to avoid interference with the guide hole e11, the upper end of the interceptor plate e1 in this embodiment is formed with a mounting part e13. The mounting part e13 overlaps the air duct cover plate e3 from top to bottom and is fixed to the air duct cover plate e3 by connecting parts such as screws, pins or rivets. The air duct cover plate e3 provides a stable bottom support and fastening connection for the interceptor plate e1.

[0065] Furthermore, as shown in the appendix Figure 3 As shown, the connector is preferably a connecting screw, that is, the mounting part e13 is fixed to the duct cover e3 by a detachable screw structure, so that the baffle plate e1 can be easily removed from the duct cover e3 for cleaning or maintenance and replacement. More precisely, the threaded end of the connecting screw passes through the mounting part e13 and is screwed onto the duct cover e3.

[0066] Furthermore, as shown in the appendix Figure 5 As shown, the upper surface of the duct cover e3 is provided with a locking groove e31 for accommodating the mounting part e13. During installation, the mounting part e13 is first locked into the locking groove e31 for pre-positioning, improving the convenience of installation and better preventing displacement of the mounting part e13, thus improving the stability of the baffle plate e1 installation. There are at least two mounting parts e13, and the two mounting parts e13 are spaced apart to increase the number of fastening points between the baffle plate e1 and the duct cover e3, thereby improving the stability of the baffle plate e1 installation.

[0067] Example 3:

[0068] Based on Embodiment 1, the filter component h is optimized to improve the filtration rate of oil fumes.

[0069] As attached Figure 6 As shown, the filter assembly h in this embodiment includes a filter support installed in the airflow duct m. The filter support includes two spaced-apart limiting posts h2. A filter element h3, which is positioned opposite the air inlet k, is installed between the two spaced-apart limiting posts h2. The filter element h3 is preferably an electrostatic cotton filter with a support mesh, which has high grease filtration efficiency, particularly low ventilation resistance, and the airflow is not affected by the filter, ensuring smooth smoke extraction. The limiting posts h2 are provided with limiting post partitions h21 that connect to the smoke-proof frame i. The two limiting post partitions h21 are located on both sides of the air inlet k.

[0070] The limiting column partition h21 covers the space between the filter element h3 and the air inlet k from both sides, guiding the airflow from the air inlet k to pass through the filter element h3 more, reducing the proportion of unfiltered oil fumes in the air duct, and improving the filtration rate of oil fumes.

[0071] As attached Figure 8 As shown, the left end of filter element h3 is connected to the left-end limiting post h2, and the right end of filter element h3 is connected to the right-end limiting post h2. At this time, there will be an installation gap between the end of filter element h3 and the limiting post h2, and some oil fumes will flow out unfiltered through this gap. Therefore, a limiting post baffle h22 is provided on the side of the limiting post h2 facing the filter element h3. This limiting post baffle h22 covers the gap between the limiting post h2 and the filter element h3 in the direction of airflow or in the opposite direction of airflow. For example, if the airflow is as follows... Figure 2 When the flow is directed to the right, the limiting post baffle h22 is located on the right side of the gap between the limiting post h2 and the filter screen h3, so as to further reduce the proportion of unfiltered oil fumes in the air duct and improve the filtration rate of oil fumes.

[0072] Furthermore, as shown in the appendix Figure 6 Appendix Figure 7 and attached Figure 8 As shown, the filter support also includes a cover plate h1 that covers the space between the filter element h3 and the air inlet k from above, so as to further increase the guiding surface for airflow, thereby guiding most of the airflow from the air inlet k to the filter element h3 and through the filter element h3 to filter the oil fumes.

[0073] For details, see attached. Figure 8As shown, a cover plate h1 is provided at the upper end of the filter element h3. The two ends of the cover plate h1 are respectively connected to two spaced limiting posts h2, that is, the left end of the cover plate h1 is connected to the limiting post h2 located on the left side and the right end is connected to the limiting post h2 located on the right side. The cover plate h1 has a cover plate connecting end h11 that is adapted to the outer side profile of the smoke isolation frame i and is connected to the outer side of the smoke isolation frame i. The connecting position of the cover plate connecting end h11 on the smoke isolation frame i is above the air inlet k.

[0074] As attached Figure 7 As shown, a first connecting plate h23 is provided between the two spaced limiting posts h2. The upper end of the first connecting plate h23 is connected to the cover plate h1. This first connecting plate h23 covers the gap between the cover plate h1 and the filter screen h3 in the direction of airflow or in the opposite direction of airflow. For example, if the airflow is as follows... Figure 2 When the flow is directed to the right, the first connecting plate h23 of the limiting post is located on the right side of the gap between the cover plate h1 and the filter screen h3, so as to further reduce the proportion of unfiltered oil fumes in the air duct and improve the filtration rate of oil fumes.

[0075] The preferred cover plate h1 is integrated with the two spaced limiting posts h2 for easy assembly and disassembly.

[0076] As attached Figure 16 and attached Figure 17 As shown, the top of the face frame g is bent to form a face frame cover plate part g2. The face frame cover plate part g2 is provided with a cover plate part slot g21. The filter screen, which is composed of a cover plate part h1 and a limiting post h2 with a filter screen part h3 installed, is inserted into the air guide duct m from top to bottom along the cover plate part slot g21. The cover plate part h1 is fixedly connected to the face frame cover plate part g2. The fixed connection method is screw connection, pin connection or snap connection.

[0077] Furthermore, as shown in the appendix Figure 6 Appendix Figure 7 and attached Figure 8 As shown, the filter support also includes a base plate h4 that covers the space between the filter element h3 and the air inlet k from below, in order to further increase the guiding surface for airflow, thereby guiding most of the airflow from the air inlet k to the filter element h3 and through the filter element h3 to achieve filtration of oil fumes.

[0078] For details, see attached. Figure 8 As shown, a base plate h4 is provided at the lower end of the filter element h3. The two ends of the base plate h4 are respectively connected to two spaced limiting posts h2, that is, the left end of the base plate h4 is connected to the limiting post h2 located on the left side and the right end is connected to the limiting post h2 located on the right side. Furthermore, there is a base plate connection end h41 on the base plate h4 that is adapted to connect to the smoke isolation frame i. The connection position of the base plate connection end h41 on the smoke isolation frame i is below the air inlet k.

[0079] As attached Figure 7 As shown, a second connecting plate h24 is provided between the two spaced limiting posts h2. The lower end of the second connecting plate h24 is connected to the base plate h4. This second connecting plate h24 covers the gap between the base plate h4 and the filter screen h3 in the direction of airflow or in the opposite direction of airflow. For example, if the airflow is as follows... Figure 2 When the flow is directed to the right, the second connecting plate h24 of the limiting post is located on the right side of the gap between the bottom plate h4 and the filter screen h3, so as to further reduce the proportion of unfiltered oil fumes in the air duct and improve the filtration rate of oil fumes.

[0080] As attached Figure 7 As shown, the base plate h4 has an upward-opening oil collection trough h42, and the lower ends of the filter screen h3 and the limiting post h2 are both connected to the bottom of the oil collection trough h42. This oil collection trough h42 is used for temporary collection of oil fumes, and can perform directional collection and treatment of oil fumes flowing down from the limiting post h2 and the filter screen h3.

[0081] The preferred bottom plate component h4 is fixed to the smoke-proof frame i using screws, pins or other fixing structures, so that the bottom plate component h4 can provide stable bottom support for the filter component h3 and the limiting post h2.

[0082] Example 4:

[0083] Based on Embodiment 1, the airflow duct m with main control component d is optimized.

[0084] For details, see attached. Figure 9 and attached Figure 10 As shown, the main control component d of the cooking pot, which consists of several electrical components, is mounted on the chassis component a and placed in the air duct m. This causes the airflow to collide with the electrical components of the main control component d in large quantities during the flow of the air duct. On the one hand, this can easily cause residual oil fumes in the airflow to adhere to the electrical components in the main control component d, causing the oil fumes to corrode the electrical components. On the other hand, the airflow is easily dispersed after colliding with several spaced electrical components, forming turbulence and affecting the airflow.

[0085] Based on this, as attached Figure 9 As shown, a main control cover plate o is installed on the main control component d to isolate the main control component d from the air duct m.

[0086] By covering the main control component d with a main control cover plate o to isolate the main control component d from the airflow in the guide duct m, the airflow in the guide duct is prevented from blowing onto the main control component d, thus improving the protection of the main control component d. At the same time, by directing the airflow in the guide duct m onto the main control cover plate o of the plate structure instead of onto several spaced electrical components, the possibility of airflow dispersion and turbulence can be reduced, thereby weakening the impact on the outlet airflow.

[0087] Furthermore, as shown in the appendix Figure 9 and attached Figure 10 As shown, a sloping airflow guide surface o1 with a left-high and right-low orientation is provided at the right end of the main control cover o. The airflow guide surface o1 guides the airflow in the airflow guide duct m towards the air outlet p.

[0088] As attached Figure 9 As shown, a duct cover plate e3 is fixedly installed on the lower end face of the heating element mounting plate b, and the duct cover plate e3 is located between the main control component d and the air inlet k.

[0089] For details, see attached. Figure 2 As shown, the duct cover plate e3 has a guide channel m2 that constitutes part of the guide duct m. The left end of the guide channel m2 is close to the air intake surface o1 of the main control cover plate o, and this end is connected to the air outlet p through the air outlet channel m3 that constitutes part of the guide duct m. The right end of the guide channel m2 is connected to the air inlet k through the air inlet channel m1 that constitutes part of the guide duct m. The fan e2 is installed in the guide channel m2, or more precisely, the fan e2 is embedded in the duct cover plate e3, and a fan cover plate e4 is fixed on the duct cover plate e3. The fan cover plate e4 and the duct cover plate e3 together clamp and fix the fan e2. In this way, the airflow blown by the drive fan e2 can be better guided along the guide channel m2 to the main control cover o, and then guided by the guide surface o1 to blow the airflow in the guide duct m towards the air outlet p. This better guides the airflow, reduces the possibility of turbulence, and allows the airflow to flow more smoothly to the air outlet p for discharge. The air inlet channel m1 and the air outlet channel m3 are connecting channels set inside the cooking pot according to requirements.

[0090] As attached Figure 2 Appendix Figure 11 Appendix Figure 12 As shown, the top plate e32 of the duct cover e3 is fixedly mounted on the lower end face of the heating element mounting plate b. The top plate e32 is positioned between the heating element c and the chassis assembly a to cover at least part of the heating element c from the bottom, preventing airflow from blowing upwards into the heating element mounting plate b and avoiding the airflow carrying oil fumes from blowing into the heating element mounting plate b and causing erosion to the connection structure between the heating element mounting plate b and the heating element c. At this time, a guide channel m2 is formed between the top plate e32 of the duct cover and the chassis assembly a, and as shown in the attached diagram... Figure 5As shown, the right end of the top plate e32 of the duct cover is provided with a top plate connection port e321, and the right end of the guide channel m2 is connected to the air inlet channel m1 through the top plate connection port e321.

[0091] As attached Figure 11 Appendix Figure 12 and attached Figure 5 As shown, air duct cover top plate e32 is provided on both sides of air duct cover side plate e33. The upper end of the air duct cover side plate e33 is connected to the air duct cover top plate e32 and the lower end is connected to the chassis assembly a. The air duct cover top plate e32, chassis assembly a, and the two spaced air duct cover side plates e33 together surround each other to form guide channel m2.

[0092] As attached Figure 9 Appendix Figure 11 As shown, the airflow surface o1 is partially placed in the guide channel m2, so that the airflow blown out of the guide channel m2 can be blown onto the airflow surface o1 more quickly and directly, thereby guiding the airflow towards the air outlet p.

[0093] Simultaneously, the two ends of the guiding surface o1 are connected to the inner walls of both sides of the guide channel m2, thereby increasing the coverage area of ​​the guiding surface o1 in the guide channel m2 and thus guiding more airflow in the guide channel m2. Specifically, as shown in the attached... Figure 11 As shown, the two ends of the drainage surface o1 are respectively connected to the two spaced air duct cover side plates e33, as shown in the attached figure. Figure 12 As shown, one end of the drainage surface o1 is connected to the side plate e33 of the duct cover located on the left, and the other end of the drainage surface o1 is connected to the side plate e33 of the duct cover located on the right.

[0094] As attached Figure 9 Appendix Figure 10 and attached Figure 11 As shown, a main control air inlet o2 is provided at one end of the main control cover o near the air inlet k, and the interior of the main control cover o is connected to the guide air duct m through the main control air inlet o2; a main control air outlet o3 is provided at one end of the main control cover o near the air outlet p, and the interior of the main control cover o is connected to the guide air duct m through the main control air outlet o3.

[0095] In this way, a small portion of the airflow, when flowing through the guide duct m to the main control cover plate o, can enter the main control cover plate o from the main control air inlet o2, flow through the interior of the main control cover plate o, and then flow out from the main control air outlet o3, forming a cooling airflow for the main control component d inside the main control cover plate o. When the temperature of the main control component d is high, it can dissipate heat and prevent the main control component d from overheating inside the main control cover plate o. Moreover, because this portion of the airflow is small, it is unlikely to interfere with the exhaust airflow.

[0096] As attached Figure 9As shown, the filter component h is placed between the air inlet k and the main control component d. In this way, the airflow flowing to the main control cover plate o is the airflow filtered by the filter component h, which carries less oil fume. This reduces the possibility of oil fume-laden airflow flowing into the main control cover plate o from the main control air inlet o2 and causing oil fume corrosion to the main control component d inside the main control cover plate o.

[0097] Example 5:

[0098] Based on Embodiment 1, the airflow channel is optimized for a cooking pot equipped with a heat insulation frame f.

[0099] As attached Figure 13 Appendix Figure 15 As shown, a heat insulation frame f is provided around the smoke-proof frame i. One side wall of the heat insulation frame f has an air inlet slot f1, which is opposite to the air inlet k. The other side wall of the heat insulation frame f has an air outlet slot f2, which is opposite to the air outlet p. A face frame g is provided around the heat insulation frame f. A gap for heat insulation exists between the face frame g and the heat insulation frame f. An air inlet channel m1, forming part of the guiding air duct m, is formed between the air inlet slot f1 and the face frame g. An air outlet channel m3, forming part of the guiding air duct m, is formed between the air outlet slot f2 and the face frame g.

[0100] For details, see attached. Figure 2 and attached Figure 13 As shown, an air inlet slot f1 is provided on the right side wall of the heat insulation frame f, and an air outlet slot f2 is provided on the left side wall. The left end of the air inlet channel m1 is connected to the cooking cavity n through the air inlet slot f1 and the air inlet k in sequence. The right end of the air outlet channel m3 is connected to the cooking cavity n through the air outlet slot f2 and the air outlet p in sequence. The air inlet channel m1 and the air outlet channel m3 are connected through the guide channel m2 mentioned below. A fan e2 is provided in the guide channel m2.

[0101] During operation, fan e2 runs and drives the formation as shown in the attached image. Figure 2 The airflow shown is as follows: gas is drawn in through the air inlet k, flows through the air inlet slot f1, air inlet channel m1, guide channel m2, air outlet channel m3, and air outlet slot f2, and then is discharged from the air outlet p into the cooking cavity n, where it directionally gathers and filters the cooking fumes. During this process, the fan e2 first draws air from the air inlet channel m1. When the air in the air inlet channel m1 is drawn out, a negative pressure area is formed, which draws the cooking fumes from the cooking cavity n into the air inlet slot f1 to create airflow. However, because there is a gap between the heat insulation frame f and the face frame g that connects to the air inlet channel m1, it is considered as if there is a crack on the side wall of the air inlet channel m1. This results in poor sealing of the air inlet channel m1, making it difficult to effectively create the negative pressure for drawing air from the air inlet slot f1, leading to poor fume gathering.

[0102] Based on this, as attached Figure 15As shown, in this embodiment, two sealing plates are provided between the heat insulation frame f and the face frame g. The two sealing plates are respectively placed on both sides of the air inlet slot f1, and one end of the sealing plate is connected to the heat insulation frame f and the other end is connected to the face frame g.

[0103] By installing a sealing plate on each side of the air inlet f1 between the insulation frame f and the face frame g, the gap between the insulation frame f and the face frame g is sealed at these two locations, preventing communication between the gap between the insulation frame f and the face frame g and the air inlet channel m1, thus improving the airtightness of the air inlet channel m1. Consequently, when the fan e2 is operating, a negative pressure can be better formed in the air inlet channel m1 to draw air in from the air inlet f1, thereby improving the concentrated suction effect of the air inlet f1 on oil fumes. At the same time, the sealing plate also forms a barrier structure against oil fumes, reducing the possibility of oil fumes flowing into the gap between the insulation frame f and the face frame g and causing pollution.

[0104] The sealing plate can be an independent component installed between the insulation frame f and the face frame g, or it can be assembled from the ribs on the insulation frame f and the face frame g.

[0105] As attached Figure 15 As shown in this embodiment, the heat insulation frame f has a heat insulation frame rib f3 on the side facing the face frame g, and the face frame g has a face frame rib g1 on the side facing the heat insulation frame f. The heat insulation frame rib f3 and the face frame rib g1 are aligned and connected to form a sealing plate.

[0106] In this way, the gap between the insulation frame f and the face frame g can be sealed at the same time as the insulation frame f and the face frame g are installed, without the need for additional sealing plate installation, resulting in higher overall assembly efficiency.

[0107] Furthermore, as shown in the appendix Figure 15 Appendix Figure 13 and attached Figure 16 As shown, the heat insulation frame rib f3 includes a heat insulation frame notch f31 and a heat insulation frame protrusion f32; the face frame rib g1 includes a face frame notch g11 and a face frame protrusion g12. The heat insulation frame notch f31 and the face frame protrusion g12 are aligned and engaged, and the heat insulation frame protrusion f32 and the face frame notch g11 are aligned and engaged, so that the face frame rib g1 and the heat insulation frame rib f3 form a more stable connection and are less prone to mutual displacement.

[0108] Meanwhile, the face frame protrusion g12 is located above the face frame notch g11, and the heat insulation frame notch f31 is located above the heat insulation frame protrusion f32. After the face frame rib g1 and the heat insulation frame rib f3 are aligned and engaged, the face frame protrusion g12 presses down on the heat insulation frame protrusion f32 from above to prevent the heat insulation frame f from detaching upward.

[0109] As attached Figure 16As shown, the top of the face frame g is bent to form a face frame cover g2, which covers the gap between the heat insulation frame f and the face frame g from above. The face frame cover g2 is connected to the slot of the air inlet slot f1 to further improve the sealing of the air inlet channel m1, making the air inlet slot f1 close to the only air inlet forming the air inlet channel m1, thereby improving the concentrated suction effect of the air inlet slot f1 on oil fumes. At this time, the top of the sealing plate is connected to the face frame cover g2 to achieve a better sealing effect.

[0110] Furthermore, as shown in the appendix Figure 15 and attached Figure 16 As shown, the face frame cover plate part g2 is provided with a cover plate part slot g21, which is located between two spaced-apart sealing plates. A cover plate component h1 is detachably snapped or screwed into the cover plate part slot g21. Thus, by removing the cover plate component h1, the cover plate part slot g21 becomes an observation port for the assembly personnel to observe the installation status of the sealing plates. Installing the cover plate component h1 forms part of the face frame cover plate part g2 structure that covers the gap between the heat insulation frame f and the face frame g from above.

[0111] Furthermore, in this embodiment, a duct cover plate e3 is fixedly mounted on the lower end surface of the heating element mounting plate b. The duct cover plate e3 includes a top duct cover plate e32 and side duct cover plates e33 located on both sides of the top duct cover plate e32. The lower end of the side duct cover plate e33 is connected to the upper end surface of the chassis assembly a, and the right end of the side duct cover plate e33 is connected to the inner wall of the face frame g. A guide channel m2 is formed between the top duct cover plate e32, the two spaced side duct cover plates e33, and the chassis assembly a. The fan e2 is installed between the two spaced side duct cover plates e33. The top duct cover plate e32 is provided with a top plate connection port e321 connecting the guide channel m2 and the air inlet channel m1.

[0112] As attached Figure 14 and attached Figure 5 As shown, around the top plate connection port e321, there is an upwardly protruding top plate support e322 on the top plate of the air duct cover e32, and a protruding side plate support e331 on the side plate of the air duct cover e33. The two ends of the top plate support e322 are respectively connected to the two spaced side plate support e331, and the side plate support e331 is attached to the bottom surface of the supporting sealing plate, and the top plate support e322 is attached to the bottom surface of the supporting heat insulation frame f. By sealing the gap between the side wall of the top plate connection port e321 and the sealing plate, as well as the gap between the side wall of the top plate connection port e321 and the heat insulation frame f, the fan e2 can more efficiently and smoothly draw air into the air inlet channel m1 through the top plate connection port e321. This allows for better formation of negative pressure in the air inlet channel m1 to draw air from the air inlet slot f1, thereby improving the concentrated suction effect of the air inlet slot f1 on oil fumes.

[0113] As attached Figure 5 As shown, an oil fume collection groove e34 is provided along the inner sidewall of the side plate support e331 and the top plate support e322, that is, the side wall facing the top plate connection port e321. This oil fume collection groove e34 can collect the oil fumes that collide with the sealing plate with the airflow and accumulate and flow down, thus preventing these oil fumes from causing mobile pollution.

[0114] Example 6:

[0115] A cooking pot, as shown in the attached image Figure 17 and attached Figure 18 As shown, an oil fume purification system includes any of the solutions in the above embodiments.

[0116] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the invention. Furthermore, the terms "vertical," "horizontal," "front," and "rear," etc., mentioned in the embodiments of the present invention indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. These are merely for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be further noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," and "fixing" in the description should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0117] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An oil fume purification system, characterized in that, include: The air inlet (k) is located on one side wall of the smoke-proof frame (i) and is connected to the cooking cavity (n); An air outlet (p) is located on the other side wall of the smoke-proof frame (i) and is connected to the cooking cavity (n); At least some of the air inlets (k) and some of the air outlets (p) are positioned opposite each other, and the air inlets (k) and the air outlets (p) are also connected by a guide duct (m), in which a fan (e2) and a filter assembly (h) are installed. The air duct (m) is also equipped with a baffle plate (e1). The baffle plate (e1) is disposed between the fan (e2) and the air outlet (p). The upper end of the baffle plate (e1) is connected to the top of the guide duct (m), and there is a gap between the lower end and the bottom of the guide duct (m). This gap is an overflow channel (e12). The cut-off plate (e1) is provided with a guide hole (e11) for airflow to pass through.

2. The oil fume purification system according to claim 1, characterized in that: The filter assembly (h) includes a filter support installed in the air duct (m), the filter support includes a plurality of limiting posts (h2) and filter elements (h3) connected to the limiting posts (h2), the filter elements (h3) being at least partially opposite to the air inlet (k).

3. The fume purification system according to claim 2, characterized in that: The limiting post (h2) is provided with a limiting post partition (h21) that is connected to the smoke isolation frame (i), and the limiting post partition (h21) is located on the side of the air inlet (k).

4. The oil fume purification system according to claim 2, characterized in that: The filter assembly (h) also includes a cover plate (h1) located at the upper end of the filter screen (h3). The cover plate (h1) has a cover plate connection end (h11) adapted to connect with the smoke isolation frame (i). The connection position of the cover plate connection end (h11) on the smoke isolation frame (i) is above the air inlet (k).

5. The fume purification system according to claim 2, characterized in that: A base plate (h4) is provided at the lower end of the filter element (h3). The base plate (h4) has a base plate connection end (h41) adapted to connect with the smoke isolation frame (i). The connection position of the base plate connection end (h41) on the smoke isolation frame (i) is below the air inlet (k).

6. The oil fume purification system according to claim 1, characterized in that: Below the cooking cavity (n) is a duct cover plate (e3), and the duct cover plate (e3) has a guide channel (m2) that constitutes part of the guide duct (m). One end of the guide channel (m2) is connected to the air outlet (p), and the other end is connected to the air inlet (k).

7. The oil fume purification system according to claim 6, characterized in that: The fan (e2) is installed in the guide channel (m2).

8. The oil fume purification system according to claim 6, characterized in that: A main control component (d) is installed in the air duct (m). The main control component (d) is located between the air duct cover plate (e3) and the air outlet (p). A main control cover plate (o) is installed on the main control component (d) to at least partially block the main control component (d) and the air duct (m).

9. The oil fume purification system according to claim 8, characterized in that: The main control cover plate (o) is provided with a drainage surface (o1).

10. The oil fume purification system according to claim 1, characterized in that: The smoke-proof frame (i) is surrounded by a heat-insulating frame (f). One side wall of the heat-insulating frame (f) is provided with an air inlet slot (f1), which is at least partially opposite to the air inlet (k). The other side wall of the heat-insulating frame (f) is provided with an air outlet slot (f2), which is at least partially opposite to the air outlet (p).

11. The oil fume purification system according to claim 10, characterized in that: The heat insulation frame (f) is surrounded by a face frame (g), and there is a gap between the face frame (g) and the heat insulation frame (f) for heat insulation. An air inlet channel (m1) is formed between the air inlet slot (f1) and the face frame (g), which constitutes part of the air guiding duct (m). An air outlet slot (f2) is formed between the air outlet slot (f2) and the face frame (g), which constitutes part of the air guiding duct (m).

12. The oil fume purification system according to claim 11, characterized in that: A sealing plate is provided between the heat insulation frame (f) and the face frame (g). The sealing plate is placed on the side of the air inlet slot (f1), and one end of the sealing plate is connected to the heat insulation frame (f) and the other end is connected to the face frame (g).

13. A cooking pot, characterized in that: It includes the fume purification system according to any one of claims 1 to 12.

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