Electric roasting pan capable of improving oil smoke suction effect

By installing a smoke guide pipe and a baffle plate in the barbecue grill to induce oil fume, an annular airflow zone is formed. Utilizing the wall adhesion effect and Bernoulli effect, the problem of oil fume leakage in the barbecue grill is solved, achieving a better oil fume absorption effect.

CN223773584UActive Publication Date: 2026-01-09ZHONGSHAN QILING ELECTRIC APPLIANCE TECH CO LTD
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Patent Information

Application Number
CN202520624180.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-01-09
Estimated Expiration
2035-04-03

AI Technical Summary

Technical Problem

Existing barbecue grills have a problem with oil fume leakage, especially when turning the meat over, resulting in poor oil fume extraction.

Method used

An oil fume induction structure, including a smoke guide pipe and a baffle plate, is installed in the middle of the pot body to form an annular induced airflow zone. The wall adhesion effect and Bernoulli effect are used to reduce oil fume leakage, and the airflow adsorption effect is improved by designing an annular air outlet and air guide surface.

Benefits of technology

It effectively reduces oil fume leakage, improves the oil fume extraction effect, ensures that the airflow moves upward along the guide surface, prevents oil fumes from escaping out of the induced airflow area, and improves the overall oil fume extraction performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an electric roasting pan capable of improving oil smoke suction effect, which comprises a pan body, and an air blowing cavity and an annular air blowing port are arranged in the pan body. An oil smoke inducing structure is installed in the middle of the pot body and comprises a smoke guiding pipe and a flow guiding plate, an annular air flow inducing area is formed between an annular air blowing opening and a flow guiding opening, leaked oil smoke flows outwards along the edge of the lower side of the flow guiding plate, and it can be known according to the wall attachment effect that the speed of the leaked oil smoke reaches the edge of the lower side of the flow guiding plate is small; according to the Bernoulli effect, airflow in the surrounding environment can flow to the airflow induction area, so that leaked lampblack at the edge of the lower side of the flow guide plate enters the airflow induction area again, and lampblack leakage can be effectively reduced. Besides, the air guide surface is arranged on the outer side wall of the smoke guide pipe, when the airflow is blown to the air guide surface, the airflow moves upwards along the surface of the air guide surface under the influence of the wall attachment effect, the lampblack is prevented from running out of the airflow induction area due to too strong wind force, and the lampblack suction effect is further improved.
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Description

Technical Field

[0001] This utility model relates to an electric cooking appliance, and more particularly to a barbecue grill. Background Technology

[0002] Currently, barbecue grills with fume extraction structures include the following two types. The first type, as disclosed in patent document CN213030524U, is a multi-functional cooking pot with a fume extraction structure. A top-mounted fume extraction fan is installed above the grill pan to absorb the fumes, which are then guided into a bottom-mounted sliding oil box through a smoke guide pipe. Since the air inlet of the top-mounted fume extraction fan is located above the grill pan, the fumes on the grill pan rise vertically. During cooking, the lateral movement caused by manually flipping the meat disrupts the natural upward airflow of the fumes, easily leading to some fumes leakage and poor fume extraction effect. The second type of structure, as disclosed in patent document CN109469939A, is a barbecue pot system that can blow air to extract oil fumes. Centrifugal fans generate centrifugal air from below the impeller and enter the annular blowing chamber. The airflow blows from bottom to top in the annular blowing chamber and then blows out from various blowing holes on the raised part of the pot body. Since each blowing hole faces the fume hood, most of the airflow blows directly into the fume hood, and a small portion of the airflow blows towards the central cylinder. Since the central cylinder does not have a structure to induce oil fumes, when the centrifugal fan is too strong, a small portion of the airflow will reach the central cylinder and continue to flow outward, causing the oil fumes to escape from the fume extraction area, and the oil fume extraction effect is not perfect. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides an electric grill that improves the oil fume extraction effect and reduces oil fume leakage.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] An electric grill for improving fume extraction includes a pot body with a blowing chamber inside. A centrifugal fan is installed inside the blowing chamber. A grilling pan is installed on the upper part of the pot body. An annular air inlet is arranged around the edge of the grilling pan. The air inlet of the annular air inlet is connected to the blowing chamber, and the air outlet of the annular air inlet is obliquely inward. A fume induction structure is installed in the middle of the pot body. The fume induction structure includes a smoke guide pipe and a guide plate fitted on the outer wall of the smoke guide pipe. The inner cavity of the smoke guide pipe is connected to the blowing chamber. A guide port is provided on the inner side of the guide plate. A top cover is installed on the upper side of the guide port. The top of the top cover is higher than the upper end of the smoke guide pipe. The outer wall of the smoke guide pipe is provided with a guide surface. During operation, the air blown out from the annular air inlet enters the guide port along the guide surface of the smoke guide pipe or the lower end face of the guide plate, forming an annular induced airflow zone between the annular air inlet and the guide port.

[0006] The pot body includes an inner shell and an outer shell. An annular connecting part is provided at the upper end of the outer shell along its edge. A reinforcing rib is provided between the annular connecting part and the inner sidewall of the outer shell. The annular connecting part is fixedly connected to the upper inner sidewall of the inner shell. After assembly, an annular air outlet channel is formed between the outer sidewall of the inner shell and the inner sidewall of the outer shell. The lower end of the air outlet channel is connected to the air blowing chamber, and the upper end is connected to the annular air blowing port.

[0007] An air inlet is provided in the middle of the inner shell corresponding to the centrifugal fan. A support base is installed on the upper side of the air inlet. The lower end of the support base is open, and the upper end is integrally formed with an upwardly protruding tubular part. A plug-in part is provided at the lower end of the smoke guide pipe. A limiting part is provided between the air guide surface of the smoke guide pipe and the plug-in part. After assembly, the plug-in part is inserted into the tubular part, and the bottom of the limiting part abuts against the upper end of the tubular part.

[0008] The first filter element is installed inside the support base.

[0009] The electric grill also includes an oil storage tank, one end of which is provided with a push-pull part. An electrical control housing is installed on the outer wall of the outer shell. After assembly, the upper end of the push-pull part is fixedly connected to the bottom of the electrical control housing, and the oil storage tank is located at the bottom of the outer shell.

[0010] The bottom of the outer shell has a through hole corresponding to the oil storage tank, and an oil drain pipe is installed on the upper side of the through hole. The inner shell has a clearance hole corresponding to the oil drain pipe. After assembly, the upper end of the oil drain pipe extends out from the clearance hole. The frying pan has an oil drain port corresponding to the oil drain pipe. The upper end of the oil drain pipe is connected to the oil drain port, and the lower end is connected to the oil storage tank.

[0011] The guide plate includes an annular transverse portion and an inwardly and upwardly inclined portion integrally formed inside the transverse portion. A fixing ring is provided in the guide port, and a connecting strip is provided between the fixing ring and the inclined portion. After assembly, the fixing ring is fitted onto the outer wall of the smoke guide tube.

[0012] An annular second filter element is installed inside the top cover. The inner sidewall of the second filter element is fitted onto the outer sidewall of the smoke guide tube. After assembly, the lower end of the top cover is fixedly installed on the upper end of the inclined part, and the bottom of the second filter element abuts against the upper end of the connecting strip.

[0013] The grill pan has a first raised barrier along its edge, and an upwardly and inwardly inclined air guide is provided on the outside of the first barrier. An annular air vent is formed between the first barrier and the air guide.

[0014] The grill pan is configured as a detachable left half and a right half. The inner side of the left half / right half is provided with an upwardly protruding second enclosure. After assembly, the second enclosures of the left half and the right half fit together.

[0015] The beneficial effects of this invention are as follows: An oil fume induction structure is installed in the middle of the pot body, forming an annular induction airflow zone between the annular air outlet and the guide outlet. Most of the airflow in the induction airflow zone is drawn into the guide outlet, a small portion flows into the lower part of the guide plate, and another portion flows into the outer wall of the smoke guide pipe. According to the wall adhesion effect, the leakage velocity of the oil fume when it reaches the lower edge of the guide plate is very small, and its direction is opposite to the airflow direction in the induction airflow zone. The negative pressure in the induction airflow zone is much greater than the negative pressure of the surrounding environment. According to Bernoulli's effect, the airflow from the surrounding environment will flow towards the induction airflow zone, causing the leaked oil fume at the lower edge of the guide plate to re-enter the induction airflow zone, effectively reducing oil fume leakage. Furthermore, the outer wall of the smoke guide pipe is provided with a guide surface. When the airflow blows onto the guide surface, due to the wall adhesion effect, the airflow will move upwards along the surface of the guide surface, providing an annular upward adsorption surface. This prevents excessive wind force from causing the oil fume to escape from the induction airflow zone, further improving the oil fume absorption effect. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a structural cross-sectional view of the present invention.

[0019] Figure 3 yes Figure 2 A magnified view of A in the middle.

[0020] Figure 4 This is an exploded view of the structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the smoke guide pipe.

[0022] Figure 6 This is a schematic diagram of the pot body.

[0023] Figure 7 This is a schematic diagram of the baffle plate.

[0024] Figure 8 This is a partial structural diagram of a frying pan.

[0025] Figure 9 This is a schematic diagram of airflow when an electric grill is in operation.

[0026] Figure 10This is a partial structural cross-sectional view of the second embodiment of this utility model.

[0027] Figure 11 This is a partial sectional exploded view of the structure of the second embodiment of this utility model.

[0028] Figure 12 This is a schematic diagram showing an alternative structure for the air outlet and air inlet hoods.

[0029] Figure 13 This is a schematic diagram of airflow during the operation of the second embodiment of this utility model.

[0030] Figure 14 This is a structural schematic diagram of the third embodiment of the present invention.

[0031] Figure 15 This is a structural cross-sectional view of the third embodiment of this utility model.

[0032] Figure 16 This is a schematic diagram of airflow during the operation of the third embodiment of this utility model. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0034] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0035] The following describes some embodiments of the present invention with reference to the accompanying drawings.

[0036] Reference Figures 1 to 9 , Figures 1 to 9This is the first embodiment of an electric grill provided by this utility model. An electric grill for improving oil fume extraction includes a pot body 1, a blowing chamber 11 inside the pot body 1, a centrifugal fan 12 installed inside the blowing chamber 11, a grilling pan 2 mounted on the upper end of the pot body 1, and an annular air inlet 21 circumferentially arranged along the edge of the grilling pan 2. The air inlet of the annular air inlet 21 is connected to the blowing chamber 11, and the air outlet of the annular air inlet 21 is obliquely inward. An oil fume induction structure is installed in the middle of the pot body 1, the oil fume induction structure including a smoke guide pipe 3 and a sleeve fitted on the outer wall of the smoke guide pipe 3. The guide plate 4 has an inner cavity that is connected to the blowing chamber 11. The guide plate 4 has an inner cavity 41. A top cover 5 is installed on the upper side of the guide cavity 41. The top of the top cover 5 is higher than the upper end of the guide cavity 3. The outer wall of the guide cavity 3 has a guide surface 31. When working, the air blown out from the annular blowing port 21 is directed toward the fume induction structure. After the air and the fume are mixed, they enter the guide cavity 41 and then circulate back to the blowing chamber 11 through the inner cavity of the top cover 5 and the inner cavity of the guide cavity 3, thereby absorbing the fume.

[0037] In this invention, an induction fume structure is installed in the middle of the pot body, forming an annular induction airflow zone between the annular air outlet 21 and the guide port 41. Most of the airflow in the induction airflow zone is drawn into the guide port 41, a small portion flows below the guide plate 4, and another portion flows onto the outer wall of the smoke guide pipe 3. According to the wall adhesion effect, the velocity of the leaking fume when it reaches the lower edge of the guide plate 4 is very small, and its direction is opposite to the airflow direction in the induction airflow zone. The negative pressure in the induction airflow zone is much greater than the negative pressure of the surrounding environment. According to Bernoulli's effect, the airflow from the surrounding environment will flow towards the induction airflow zone, causing the leaking fume at the lower edge of the guide plate 4 to re-enter the induction airflow zone, effectively reducing fume leakage. Furthermore, in this embodiment, the smoke guide pipe 3 can be a star-shaped, rectangular, or other irregularly shaped polygonal annular column, such as... Figure 5 As shown, the air guide surface 31 of the smoke guide pipe 3 is set as a concave arc surface. When the airflow blown out of the annular air outlet 21 blows onto the air guide surface 31, it will move upward along the surface of the air guide surface 31 due to the wall adhesion effect, preventing the oil fumes from escaping the induced airflow zone due to excessive wind force, thus improving the oil fume absorption effect.

[0038] As a further improvement of this utility model, the pot body 1 includes an inner shell 13 and an outer shell 14. An annular connecting part 15 is provided at the upper end of the outer shell 14 along its edge. A reinforcing rib is provided between the annular connecting part 15 and the inner sidewall of the outer shell 14. The annular connecting part 15 is fixedly connected to the upper inner sidewall of the inner shell 13. Specifically, it can be fixed by screws. After assembly, the air blowing cavity 11 is formed between the inner shell 13 and the outer shell 14. An annular air outlet channel 16 is formed between the outer sidewall of the inner shell 13 and the inner sidewall of the outer shell 14. The lower end of the air outlet channel 16 communicates with the air blowing cavity 11, and the upper end communicates with the annular air outlet 21.

[0039] As a further improvement of this utility model, an air inlet 17 is provided in the middle of the inner shell 13 corresponding to the centrifugal fan 12. A support base 18 is installed on the upper side of the air inlet 17. The lower end of the support base 18 is open, and the upper end has an integrally formed upward-protruding tubular part 181. The lower end of the smoke guide pipe 3 is provided with a plug-in part 32. A limiting part 33 is provided between the air guide surface 31 of the smoke guide pipe 3 and the plug-in part 32. After assembly, the plug-in part 32 is inserted into the tubular part 181, and the bottom of the limiting part 33 abuts against the upper end of the tubular part 181, which facilitates disassembly and assembly. In this embodiment, a first filter element 5 is installed in the support base 18, which can intercept grease particles and dust in the fumes, making the exhaust gas cleaner.

[0040] The heating element 7 is installed on the support base 18, and a support frame is installed between the support base 18 and the heating element 7. After assembly, the bottom of the support frame abuts against the support base 18, and one end of the support frame is fixedly connected to the inner side wall of the inner shell 13. Specifically, it can be fixed by screws for easy assembly.

[0041] As a further improvement of this utility model, the electric grill also includes an oil storage tank 6. A push-pull portion 61 is provided at one end of the oil storage tank 6. An electrical control housing is installed on the outer wall of the outer shell 14, specifically, it can be fixed by screws or clips. The electrical control housing is provided with an operation button for controlling the temperature of the heating element 7. The upper end of the push-pull portion 61 is fixedly connected to the bottom of the electrical control housing, and the oil storage tank 6 is located at the bottom of the outer shell 14. Specifically, the push-pull portion 61 and the electrical control housing can be connected by adhesive or common clips, facilitating the disassembly and assembly of the oil storage tank 6. In this embodiment, a groove is provided at the lower end of the push-pull portion 61, allowing the user to easily insert their hand into the groove to pull out or push in the oil storage tank 6, making it convenient to use.

[0042] As a further improvement of this utility model, the bottom of the outer shell 14 is provided with a through hole corresponding to the oil storage tank 6, and an oil drain pipe 62 is installed on the upper side of the through hole. The inner shell 13 is provided with a clearance hole corresponding to the oil drain pipe 62. After assembly, the upper end of the oil drain pipe 62 extends out from the clearance hole. The frying pan 2 is provided with an oil drain port 25 corresponding to the oil drain pipe 62. The upper end of the oil drain pipe 62 is connected to the oil drain port 25, and the lower end is connected to the oil storage tank 6, so as to facilitate the frying pan to quickly drain oil and collect it into the oil storage tank 6 through the oil drain port 25.

[0043] As a further improvement of this utility model, the guide plate 4 includes an annular horizontal portion 42, an inwardly upward inclined portion 43 integrally formed inside the horizontal portion 42, and an upwardly inclined vertical portion 46 integrally formed outside the horizontal portion 42. A fixing ring 44 is provided in the guide port 41, and a connecting strip 45 is provided between the fixing ring 44 and the inclined portion 43. After assembly, the fixing ring 44 is fitted onto the outer wall of the smoke guide pipe 3. In this embodiment, when the electric grill is working, the fumes will flow along the lower part of the horizontal portion 42, so that the surface of the horizontal portion 42 has a certain temperature. This allows the user to place the grilled meat on the upper part of the horizontal portion 42, which helps to keep the food warm.

[0044] As a further improvement of this utility model, the diameter of the guide plate can be equal to or smaller than the diameter of the griddle. Specifically, it can be half the diameter of the griddle.

[0045] As a further improvement of this utility model, an annular second filter element 51 is installed inside the top cover 5. The inner sidewall of the second filter element 51 is fitted onto the outer sidewall of the smoke guide pipe 3. After assembly, the lower end of the top cover 5 is fixedly installed on the upper end of the inclined portion 43, and the bottom of the second filter element 51 abuts against the upper end of the connecting strip 45. The second filter element 51 can intercept grease particles and dust in the fumes, making the gas cleaner.

[0046] As a further improvement of this utility model, the grill pan 2 is provided with an upwardly protruding first guardrail 22 along its edge. An upwardly and inwardly inclined air guide portion 23 is provided on the outer side of the first guardrail 22, and an annular air outlet 21 is formed between the first guardrail 22 and the air guide portion 23. The lower end of the air guide portion 23 extends downward to form a limiting portion 26. After assembly, the limiting portion 26 fits onto the outer wall of the outer shell 14 for easy assembly. Specifically, the grill pan 2 is configured as a detachable left half and a right half. An upwardly protruding second guardrail 24 is provided on the inner side of the left / right half. After assembly, the second guardrails 24 of the left and right halves fit together. During grilling, the grill pan can be directly replaced and removed without disassembling the smoke-inducing structure, making it convenient to use. In addition, after setting up two baking trays, the heating tube 7 is equipped with a left heating tube and a right heating tube corresponding to the left half and right half, respectively, so that the temperature of the two baking trays can be controlled separately. Users can place different foods according to the temperature of the baking trays. Specifically, the temperature of the left half is higher, so meats such as pork and mutton can be placed there, while the temperature of the right half is lower, so seafood or vegetables can be placed there. By controlling the temperature in zones, the cross-contamination of flavors between foods can be reduced on the one hand, and the cooking needs of different ingredients can be met on the other hand.

[0047] Reference Figures 10 to 13 , Figures 10 to 13 This is the second embodiment of the electric grill provided by this utility model. The difference from the first embodiment is that: the smoke guide pipe 3 is a circular column, and the outer wall of the smoke guide pipe 3 is provided with annularly arranged air guide surfaces 31. Grooves are formed between adjacent air guide surfaces 31, so that after the airflow is blown to the air guide surfaces 31, it moves upward along the surface of the grooves, thereby improving the smoke extraction effect.

[0048] Specifically, a first diverter plate 81 is installed inside the air blowing chamber 11. The first diverter plate 81 covers the side of the centrifugal fan 12. The first diverter plate 81 is provided with several diverting holes. This is because the airflow blown out by the centrifugal fan 12 is relatively strong. After passing through the first diverter plate 81, the blown airflow enters the air blowing chamber 11 from the diverting holes, which has a buffering effect. Additionally, a second diversion plate 82 is installed at the bottom of the inner shell 13. The second diversion plate 82 is located on the top surface of the centrifugal fan 12 and the first diversion plate 84. The second diversion plate 82 is provided with a plurality of diversion holes and the air inlet 17 is provided in the middle. The air inlet hood 86 is installed on the air inlet 17. The air outlet hood 83 is installed on the second diversion plate 82. The air outlet hood 83 covers the side of the air inlet hood 86. An inner tube 84 and an outer tube 85 with a tube-in-tube structure are installed between the air outlet hood 83 and the air inlet hood 86. The upper end of the inner tube 84 is connected to the inner cavity of the smoke guide pipe 3, and the lower end is connected to the air inlet of the centrifugal fan 12. The upper end of the outer tube 85 is connected to the groove, and the lower end is connected to the air outlet of the centrifugal fan 12. During operation, part of the airflow blown out by the centrifugal fan 12 enters the blowing chamber 11 along the first diverter plate 81, and the other part is blown upward along the second diverter plate 82. The upward-blown airflow enters the groove from the outer pipe 85. Affected by the wall adhesion effect, the airflow will flow upward along the surface of the groove. When the airflow blown out by the annular blower 21 reaches the outer wall of the smoke guide pipe 3, the speed is very small, and its negative pressure is less than the negative pressure of the airflow on the groove. This causes the airflow blown by the annular blower 21 to flow upward with the airflow on the groove, which can effectively reduce oil fume leakage and further improve the oil fume absorption effect.

[0049] In this embodiment, the lower end of the smoke guide pipe 3 is inserted into the upper opening of the inner pipe 84, and the lower end of the air guide surface 31 abuts against the top of the outer pipe 85. The inner pipe 84 and the outer pipe 85 can be integrally formed, as shown in the figure. Figure 11 The outer tube 85 is fitted onto the outer side of the inner tube 84. The lower end of the inner tube 84 protrudes. An air outlet is provided in the middle of the air outlet hood 83. The diameter of the air outlet is larger than the diameter of the inner tube 84. After assembly, the inner tube 84 is inserted into the air outlet and fixedly connected to the top of the air inlet hood 86. Specifically, several threaded posts are provided between the outer tube 85 and the inner tube 84, as well as on the outer side wall of the outer tube 85. The top surfaces of the air inlet hood 86 and the air outlet hood 83 are provided with through holes corresponding to the threaded posts. After assembly, screws pass through the through holes and are threadedly connected to the threaded posts, ensuring a secure assembly.

[0050] In this embodiment, the inner tube 84 and the outer tube 85 can also be integrally formed with the air inlet hood 86 and the air outlet hood 83. Specifically, referring to... Figure 12The air inlet shroud 86 and the air outlet shroud 83 are conical structures. An upwardly protruding outer tube 85 is integrally formed at the upper end of the air outlet shroud 83, and an upwardly protruding inner tube 84 is integrally formed at the upper end of the air inlet shroud 86. After assembly, the air outlet shroud 83 is fitted onto the outside of the air inlet shroud 86. Specifically, the lower ends of the air inlet shroud 86 and the air outlet shroud 83 can be fixedly connected to the second diverter plate 82 with screws for easy assembly.

[0051] Reference Figures 14 to 16 , Figures 14 to 16 This is the third embodiment of the electric grill provided by this utility model. The difference from the first embodiment is that the upper end of the smoke guide pipe 3 is connected to the guide plate 4, and the lower end is suspended above the pot body 1. An induction fan 91 is installed inside the top cover 5, and an oil fume extraction channel 92 is installed on the top of the top cover 5. One end of the oil fume extraction channel 92 communicates with the inner cavity of the top cover 5, and the other end communicates with the air inlet of the centrifugal fan 12. This embodiment includes a centrifugal fan 12 and an induction fan 91. During operation, the airflow blown by the centrifugal fan 12 is blown out along the annular air outlet 21. After reaching the outer wall of the smoke guide pipe 3, due to the wall adhesion effect, the airflow moves upward along the surface of the guide surface 31. After entering the guide outlet 41, the airflow is drawn into the oil fume extraction channel 92 by the induction fan 91. This embodiment adds an induction fan 91 to increase the airflow speed, thereby improving the oil fume extraction effect.

[0052] Specifically, the insertion part 32 of the smoke guide pipe 3 is inserted into the fixing ring 44. Specifically, the insertion part 32 and the fixing ring 44 can be an interference fit for easy installation. The induced draft fan 91 is located on top of the second filter element 51; a fixing seat 93 is installed at the lower end of the outer shell 14. The inner cavity of the fixing seat 93 communicates with the blowing chamber 11. An insertion interface is provided on the outer wall of the fixing seat 93. After assembly, the lower end of the fume extraction channel 92 is horizontally inserted into the insertion interface to keep the fume extraction channel 92 stable. A filter element is also installed in the inner cavity of the fixing seat 93 to make the gas entering the centrifugal fan 12 cleaner.

[0053] In this embodiment, the pot body 1 can be a pot for hot pot or stir-frying. Since hot pot or stir-frying produces a lot of oil fumes, multiple fans are installed to absorb the fumes, which can improve the fume extraction effect. In addition, the oil storage tank 6 does not need to be installed inside the pot body 1.

[0054] In this invention, the shape of the pot body 1 is not limited to circular, square, or elliptical shapes.

[0055] In this invention, the term "multiple" refers to two or more items unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] It should be noted that when a component is referred to as being "assembled on," "mounted on," "fixed to," or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0057] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0058] Although embodiments of the present 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 present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electric grill pan with improved fume extraction effect, comprising a pan body (1), characterized in that... The pot body (1) is provided with a blowing chamber (11), and a centrifugal fan (12) is installed in the blowing chamber (11). A frying pan (2) is installed on the upper end of the pot body (1). The frying pan (2) is provided with an annular blowing port (21) along its edge. The air inlet of the annular blowing port (21) is connected to the blowing chamber (11), and the air outlet of the annular blowing port (21) is obliquely inward. An oil fume induction structure is installed in the middle of the pot body (1). The oil fume induction structure includes a smoke guide pipe (3) and a guide plate (4) fitted on the outer wall of the smoke guide pipe (3). 3) The inner cavity is connected to the blowing chamber (11). The inner side of the guide plate (4) is provided with a guide port (41). A top cover (5) is installed on the upper side of the guide port (41). The top of the top cover (5) is higher than the upper end of the smoke pipe (3). The outer wall of the smoke pipe (3) is provided with a guide surface (31). When working, the air blown out from the annular blowing port (21) enters the guide port (41) along the guide surface (31) of the smoke pipe (3) or the lower end face of the guide plate (4), forming an annular induced airflow zone between the annular blowing port (21) and the guide port (41).

2. The electric grill pan with improved fume extraction effect according to claim 1, characterized in that... The pot body (1) includes an inner shell (13) and an outer shell (14). An annular connecting part (15) is provided at the upper end of the outer shell (14) along the edge. A reinforcing rib is provided between the annular connecting part (15) and the inner side wall of the outer shell (14). The annular connecting part (15) is fixedly connected to the upper inner side wall of the inner shell (13). After assembly, an annular air outlet channel (16) is formed between the outer side wall of the inner shell (13) and the inner side wall of the outer shell (14). The lower end of the air outlet channel (16) is connected to the air blowing chamber (11), and the upper end is connected to the annular air blowing port (21).

3. The electric grill pan with improved fume extraction effect according to claim 2, characterized in that... An air inlet (17) is provided in the middle of the inner shell (13) corresponding to the centrifugal fan (12). A support base (18) is installed on the upper side of the air inlet (17). The lower end of the support base (18) is open, and the upper end is integrally formed with an upwardly protruding tubular part (181). A plug-in part (32) is provided at the lower end of the smoke guide pipe (3). A limiting part (33) is provided between the air guide surface (31) of the smoke guide pipe (3) and the plug-in part (32). After assembly, the plug-in part (32) is inserted into the tubular part (181), and the bottom of the limiting part (33) abuts against the upper end of the tubular part (181).

4. The electric grill pan with improved fume extraction effect according to claim 2, characterized in that... It also includes an oil storage tank (6), one end of which is provided with a push-pull part (61). An electrical control housing is installed on the outer side wall of the outer shell (14). After assembly, the upper end of the push-pull part (61) is fixedly connected to the bottom of the electrical control housing, and the oil storage tank (6) is located at the bottom of the outer shell (14).

5. The electric grill pan with improved fume extraction effect according to claim 4, characterized in that... The bottom of the outer shell (14) is provided with a through hole corresponding to the oil storage tank (6), and an oil drain pipe (62) is installed on the upper side of the through hole. The inner shell (13) is provided with a clearance hole corresponding to the oil drain pipe (62). After assembly, the upper end of the oil drain pipe (62) extends out from the clearance hole. The frying pan (2) is provided with an oil drain port (25) corresponding to the oil drain pipe (62). The upper end of the oil drain pipe (62) is connected to the oil drain port (25), and the lower end is connected to the oil storage tank (6).

6. The electric grill pan with improved fume extraction effect according to claim 1, characterized in that... The guide plate (4) includes an annular transverse portion (42) and an inwardly inclined oblique portion (43) integrally formed inside the transverse portion (42). A fixing ring (44) is provided in the guide port (41). A connecting strip (45) is provided between the fixing ring (44) and the oblique portion (43). After assembly, the fixing ring (44) is fitted onto the outer wall of the smoke guide pipe (3).

7. The electric grill pan with improved fume extraction effect according to claim 6, characterized in that... The top cover (5) is equipped with an annular second filter element (51). The inner side wall of the second filter element (51) is fitted onto the outer side wall of the smoke guide pipe (3). After assembly, the lower end of the top cover (5) is fixedly installed on the upper end of the inclined part (43), and the bottom of the second filter element (51) abuts against the upper end of the connecting strip (45).

8. The electric grill pan with improved fume extraction effect according to claim 1, characterized in that... The grill pan (2) has an upwardly protruding first barrier (22) along its edge, and an upwardly and inwardly inclined air guide (23) is provided on the outside of the first barrier (22). The annular air outlet (21) is formed between the first barrier (22) and the air guide (23).

9. The electric grill pan with improved fume extraction effect according to claim 8, characterized in that... The grill pan (2) is configured as a detachable left half and a right half. The inner side of the left half / right half is provided with an upwardly protruding second enclosure (24). After assembly, the second enclosure (24) of the left half and the right half fit together.

Citation Information

Patent Citations

  • Barbecue pot body system with air blowing and oil fume extraction functions

    CN109469939A

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    CN213030524U