Smoke exhaust pipe, oil smoke suction device and combined cooking equipment

Abstract

The present invention discloses a smoke exhaust pipe, an oil smoke suction device and a combined cooking device thereof. The smoke exhaust pipe includes a pipe body and a first diverter. The pipe body is used to communicate with the volute of the oil smoke suction device. The first diverter is provided with a first air guide surface. The first diverter is rotatably arranged in the pipe body and is arranged corresponding to the passing position of the oil smoke with a flow component. The first air guide surface can be tilted relative to the length direction of the pipe body. The first air guide surface is used to adjust the oil smoke with a transverse flow component passing through the pipe body. When the oil smoke enters the pipe body, the first air guide surface guides the oil smoke with a transverse flow component so that the flow direction of the part of the oil smoke with a transverse flow component is consistent with the length direction of the pipe body, thereby reducing the loss of oil smoke flow energy and improving the oil smoke exhaust effect. The first diverter is rotated relative to the pipe body to adjust the inclination angle of the first air guide surface, so that the oil smoke exhaust effect under different working conditions is met and the noise during the oil smoke exhaust process is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of cooking equipment, and in particular to a smoke exhaust pipe. The present invention also relates to a fume extraction device. The present invention further relates to a combined cooking device. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] Combination cooking equipment typically includes a housing, a cooking table, a heating device, and an exhaust device. The cooking table is coupled to the housing, and the exhaust device is housed within the housing and communicates with the top of the cooking table. The heating device is housed within the housing (electromagnetic heating structure) or on the cooking table (gas heating structure), corresponding to the cooking position of the cooking table. The exhaust device typically includes a fan, a volute, and an exhaust pipe. The air inlet of the volute communicates with the top of the cooking table, and the air outlet of the volute communicates with the exhaust pipe. When cooking food, the cookware is placed on the cooking position, the heating mechanism heats the cookware to achieve cooking, and the fan is activated, creating a negative pressure within the volute. This allows the oil smoke above the cooking table to enter the exhaust pipe through the air inlet, the interior of the volute, and the air outlet, thereby improving the air quality during cooking.

[0004] However, the oil smoke is discharged into the exhaust pipe through the air outlet of the volute under the action of the centrifugal force of the fan. After entering the exhaust pipe, the oil smoke has a large lateral flow component, which causes the loss of flow energy and thus affects the exhaust effect. Summary of the Invention

[0005] The purpose of the present invention is to at least solve the problem of flow energy loss caused by the lateral flow component of oil smoke. This purpose is achieved through the following technical solutions:

[0006] A first aspect of the present invention provides a smoke exhaust pipe for an oil fume extraction device, the smoke exhaust pipe comprising:

[0007] a pipe body, the pipe body being used to communicate with the volute of the oil fume extraction device;

[0008] A first diverter is provided with a first air guide surface, the first diverter is rotatably arranged in the tube body and is arranged corresponding to the passing position of the oil smoke with a flow component, the first air guide surface can be inclined to the length direction of the tube body, and the first air guide surface is used to adjust the flow direction of the oil smoke with a transverse flow component so that the flow direction of the oil smoke with a transverse flow component is consistent with the length direction of the tube body.

[0009] According to the smoke exhaust pipe of the present invention, when the smoke exhaust pipe is used in an oil fume suction device, the pipe body of the smoke exhaust pipe is connected to the volute of the oil fume suction device. Under the action of the fan of the oil fume suction device, the oil fume enters the volute through the air inlet of the volute and then enters the pipe body through the air outlet of the volute. Part of the oil fume entering the pipe body has a transverse flow component. The first air guide surface guides the oil fume with the transverse flow component so that the flow direction of the part of the oil fume with the transverse flow component is consistent with the length direction of the pipe body, that is, the oil fume in the pipe body flows along the length direction of the pipe body, thereby reducing the loss of oil fume flow energy, improving the oil fume emission effect, and further improving the user experience. In addition, by rotating the first diverter relative to the pipe body, the inclination angle of the first air guide surface relative to the length direction of the pipe body is adjusted, thereby meeting the oil fume emission effect under different working conditions and effectively reducing the noise during the oil fume emission process.

[0010] In addition, the smoke exhaust pipe according to the present invention may also have the following additional technical features:

[0011] In some embodiments of the present invention, the first flow diverter is a first plate-shaped structure, and the side of the first plate-shaped structure close to the volute tongue of the volute is the first air-guiding surface.

[0012] In some embodiments of the present invention, a second air guide surface is further provided on the first plate-shaped structure, and the second air guide surface is located on a side of the first plate-shaped structure facing the inlet of the tube body.

[0013] In some embodiments of the present invention, the second wind guiding surface is a first convex arc surface.

[0014] In some embodiments of the present invention, one side of the first plate-shaped structure is disposed close to the inner wall of the tube body, and the other side of the first plate-shaped structure is disposed close to the middle of the tube body.

[0015] In some embodiments of the present invention, the smoke exhaust pipe further comprises:

[0016] a connecting shaft, through which the first plate-like structure cooperates with the tube body;

[0017] A driving member is provided on the tube body and is in driving connection with the connecting shaft.

[0018] In some embodiments of the present invention, the smoke exhaust pipe further includes a second diverter disposed in the pipe body, and the second diverter is located on a side of the first diverter away from the inlet of the pipe body.

[0019] In some embodiments of the present invention, the second diverter is a second plate-shaped structure, which is arranged along the length direction of the tube body, and both ends of the second plate-shaped structure are respectively connected to the inner wall of the tube body in a detachable manner.

[0020] In some embodiments of the present invention, the second plate-like structure is arranged close to the first plate-like structure, and the position where the connecting shaft cooperates with the first plate-like structure is close to the second plate-like structure, so that the oil smoke can continuously transition from the first plate-like structure to the second plate-like structure.

[0021] In some embodiments of the present invention, a third wind guiding surface is provided on the side of the second plate-shaped structure facing the inlet.

[0022] In some embodiments of the present invention, the third wind guide surface is a second convex arc surface.

[0023] A second aspect of the present invention provides an oil fume extraction device, comprising:

[0024] A smoke exhaust pipe, wherein the smoke exhaust pipe is the smoke exhaust pipe described above;

[0025] a volute, wherein the air outlet of the volute is connected to the smoke exhaust pipe, and the volute tongue of the volute is arranged close to the first air guide surface of the diverter;

[0026] A fan is arranged in the volute.

[0027] According to the oil fume extraction device of the present invention, the pipe body of the exhaust pipe is connected to the volute of the oil fume extraction device. Under the action of the fan of the oil fume extraction device, the oil fume enters the volute through the air inlet of the volute and then enters the pipe body through the air outlet of the volute. Part of the oil fume entering the pipe body has a transverse flow component. The first air guide surface guides the oil fume with the transverse flow component so that the flow direction of the part of the oil fume with the transverse flow component is consistent with the length direction of the pipe body, that is, the oil fume in the pipe body flows along the length direction of the pipe body, thereby reducing the loss of oil fume flow energy, improving the oil fume emission effect, and further improving the user experience. In addition, by rotating the first diverter relative to the pipe body, the inclination angle of the first air guide surface relative to the length direction of the pipe body is adjusted, thereby meeting the oil fume emission effect under different working conditions and effectively reducing the noise during the oil fume emission process.

[0028] A third aspect of the present invention provides a combined cooking device, comprising:

[0029] An oil fume extraction device, wherein the oil fume extraction device is the oil fume extraction device as described above;

[0030] a box body, wherein the oil fume suction device is arranged in the box body;

[0031] A cooking table, wherein a cooking position is provided on the cooking table and the cooking table cooperates with the box body;

[0032] A heating device is matched with the cooking table and is arranged corresponding to the cooking position.

[0033] According to the combined cooking device of the present invention, the exhaust pipe of the oil fume suction device is connected to the volute of the oil fume suction device. Under the action of the fan of the oil fume suction device, the oil fume enters the volute through the air inlet of the volute and then enters the pipe body through the air outlet of the volute. Part of the oil fume entering the pipe body has a transverse flow component. The first air guide surface guides the oil fume with the transverse flow component so that the flow direction of the part of the oil fume with the transverse flow component is consistent with the length direction of the pipe body, that is, the oil fume in the pipe body flows along the length direction of the pipe body, thereby reducing the loss of oil fume flow energy, improving the oil fume emission effect, and further improving the user experience. In addition, by rotating the first diverter relative to the pipe body, the inclination angle of the first air guide surface relative to the length direction of the pipe body is adjusted, thereby meeting the oil fume emission effect under different working conditions and effectively reducing the noise during the oil fume emission process. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference numerals are used throughout the accompanying drawings to denote the same components. In the accompanying drawings:

[0035] Figure 1 Schematically shows a structural diagram of a combined cooking device according to an embodiment of the present invention;

[0036] Figure 2 for Figure 1 A schematic structural diagram (partial structure) of the oil fume extraction device of the combined cooking device shown in FIG;

[0037] Figure 3 for Figure 2 Schematic diagram of the structure of the exhaust pipe of the oil fume suction device shown in FIG.

[0038] The reference numerals are as follows:

[0039] 100 is a combination cooking device;

[0040] 10 is a cooking table, 11 is a cooking position;

[0041] 20 is a box body;

[0042] 30 is a fume extraction device;

[0043] 31 is a smoke exhaust pipe, 311 is a pipe body, 312 is a connecting shaft, 313 is a second diverter, 3131 is a third air guide surface, 314 is a first diverter, 3141 is a first air guide surface, and 3142 is a second air guide surface;

[0044] 32 is a volute. DETAILED DESCRIPTION

[0045] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0046] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0047] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0048] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "below" another element or feature would then be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein are interpreted accordingly.

[0049] like Figures 1 to 3 As shown, according to an embodiment of the present invention, a smoke exhaust pipe 31 is proposed for use in an oil fume suction device 30. The smoke exhaust pipe 31 includes a pipe body 311 and a first diverter 314. The pipe body 311 is used to communicate with the volute 32 of the oil fume suction device 30. The first diverter 314 is provided with a first air guide surface 3141. The first diverter 314 is rotatably arranged in the pipe body 311 and is corresponding to the passing position of the oil fume with a flow component. The first air guide surface 3141 can be tilted to the length direction of the pipe body 311. The first air guide surface 3141 is used to adjust the flow direction of the oil fume with a transverse flow component so that the flow direction of the oil fume with a transverse flow component is consistent with the length direction of the pipe body 311.

[0050] Specifically, when the smoke exhaust pipe 31 is used for the oil fume suction device 30, the pipe body 311 of the smoke exhaust pipe 31 is connected to the volute 32 of the oil fume suction device 30. Under the action of the fan of the oil fume suction device 30, the oil fume enters the volute 32 through the air inlet of the volute 32, and then enters the pipe body 311 through the air outlet of the volute 32. Part of the oil fume entering the pipe body 311 has a transverse flow component. The first air guide surface 3141 guides the oil fume with the transverse flow component so that the flow direction of the part of the oil fume with the transverse flow component is consistent with the length direction of the pipe body 311, that is, the oil fume in the pipe body 311 flows along the length direction of the pipe body 311, thereby reducing the loss of oil fume flow energy, improving the oil fume emission effect, and thus improving the user experience. In addition, by rotating the first diverter 314 relative to the tube body 311, the inclination angle of the first air guide surface 3141 relative to the length direction of the tube body 311 is adjusted, thereby meeting the effect of oil fume emission under different working conditions and effectively reducing the noise during the oil fume emission process.

[0051] It should be understood that the fan includes a motor and an impeller. The motor drives the impeller to rotate, and through the rotation, the oil smoke enters the tube body 311 of the exhaust pipe 31 through the volute 32 under the action of centrifugal force. A part of the oil smoke entering the tube body 311 is a smooth airflow (the flow direction of the oil smoke is consistent with the length direction of the tube body 311), and the other part of the oil smoke is oil smoke with a transverse flow component (the flow direction of the oil smoke is inconsistent with the length direction of the tube body 311). The position of the first diverter 314 in the tube body 311 is corresponding to the position where the oil smoke with a transverse flow component passes. When the oil smoke with a transverse flow component passes through, the first wind guide surface 3141 guides and diverts the oil smoke with a transverse flow component, so that the oil smoke with a transverse flow component is converted into a smooth airflow, thereby reducing the energy loss during the flow of the oil smoke, so that the emission effect of the oil smoke is guaranteed.

[0052] Taking the horizontal placement of the volute 32 as an example, the air inlet of the volute 32 is located at the top of the volute 32, and the air outlet of the volute 32 is located at the side of the volute 32. The fan is arranged in the volute 32. After the fan is started, the oil smoke enters the volute 32 through the air inlet, and then enters the tube body 311 of the smoke exhaust pipe 31 through the air outlet. At this time, the oil smoke passing through the upper half of the air outlet (the side close to the top of the volute 32) has a horizontal flow component, which is a non-smooth airflow, and the oil smoke passing through the lower half of the air outlet (the side close to the bottom of the volute 32) is a smooth airflow. The diverter is arranged in the tube body 311 of the smoke exhaust pipe 31 and corresponds to the upper half of the air outlet, so that the oil smoke with horizontal flow is guided and diverted, reducing the energy loss during the flow of oil smoke and ensuring the emission effect of oil smoke.

[0053] It should be pointed out that when the working condition of the range hood changes, the flow rate of the oil smoke changes with the change of the working condition. By driving the first diverter 314 to rotate in the tube body 311, the inclination angle between the first air guide surface 3141 and the length direction of the tube body 311 changes, so that the first air guide surface 3141 adapts to the changed oil smoke flow rate, thereby ensuring the effect of guiding and diverting the oil smoke with a horizontal flow component, and at the same time reducing the noise during the oil smoke emission process.

[0054] It is further understood that if Figure 2 and Figure 3As shown, the first diverter 314 is a first plate-shaped structure, and the side of the first plate-shaped structure close to the volute tongue of the volute 32 is a first air-guiding surface 3141. Specifically, when the smoke exhaust pipe 31 is used for the oil fume suction device 30, the pipe body 311 of the smoke exhaust pipe 31 is connected to the volute 32 of the oil fume suction device 30, and the first diverter 314 of the first plate-shaped structure is rotatably arranged in the pipe body 311, wherein the side of the first plate-shaped structure close to the volute tongue is the first air-guiding surface 3141, and can be tilted relative to the length direction of the pipe body 311. When oil fume with a transverse flow component enters the pipe body 311, the first air-guiding surface 3141 guides and diverts the oil fume with the transverse flow component, so that the flow direction of the oil fume with the transverse flow component is consistent with the length direction of the pipe body 311, thereby reducing the energy loss during the flow of the oil fume, so that the exhaust effect of the oil fume is guaranteed.

[0055] In addition, the first diverter 314 is a first plate-shaped structure, which has a simple structure and low manufacturing cost. At the same time, the first plate-shaped structure is small in size and light in weight, which can effectively achieve lightweight manufacturing of the smoke exhaust pipe 31.

[0056] Furthermore, the first plate-like structure is further provided with a second air-guiding surface 3142, which is located on the side of the first plate-like structure facing the inlet of the tube body 311. Specifically, the first plate-like structure is arranged in the tube body 311, and the first plate-like structure has a side facing the inlet of the tube body 311, which constitutes the second air-guiding surface 3142. When the oil smoke enters the tube body 311 of the exhaust pipe 31 through the volute 32, the oil smoke with a transverse flow component is first guided and diverted by the second air-guiding surface 3142, and then guided and diverted by the first air-guiding surface 3141, ultimately causing the oil smoke with a transverse flow component to flow along the length direction of the tube body 311. By providing the second air-guiding surface 3142, the effect of guiding and diverting the oil smoke with a transverse flow component is further improved, further avoiding the loss of energy of the oil smoke during the flow process, and further ensuring the exhaust effect of the oil smoke.

[0057] Furthermore, the second air-guiding surface 3142 is a first convex curved surface. Specifically, when oil smoke with a transverse flow component enters the tube body 311 of the exhaust pipe 31, the oil smoke with the transverse flow component is guided and diverted by the first convex curved surface, and then further diverted by the first air-guiding surface 3141, thereby aligning the flow direction of the oil smoke with the transverse flow component with the longitudinal direction of the tube body 311. Furthermore, the provision of the first convex curved surface can prevent whistling and additional localized noise generated when the oil smoke with the transverse flow component is guided and diverted, thereby reducing noise during the oil smoke exhaust process and further improving the user experience.

[0058] It should be pointed out that the material of the first diverter 314 can be metal or non-metal. When the first diverter 314 is non-metal (plastic or nylon, etc.), the first diverter 314 with a first plate-like structure has a certain thickness, and the side of the first plate-like structure facing the inlet of the tube body 311 also has a certain thickness, and the thickness position is rounded to form the second air-guiding surface 3142 of the first convex arc surface; when the first diverter 314 is metal (iron or stainless steel, etc.), the thickness of the first diverter 314 with a first plate-like structure is relatively small, and the thickness of the side of the first plate-like structure facing the inlet of the tube body 311 is relatively thin, and no rounding treatment is required at this time.

[0059] Furthermore, if Figure 2 and Figure 3 As shown, one side of the first plate-like structure is disposed near the inner wall of the tube body 311, and the other side of the first plate-like structure is disposed near the middle of the tube body 311. Specifically, the tube body 311 defines a smoke exhaust passage through which oil smoke passes. A first diverter 314 is disposed within the smoke exhaust passage of the tube body 311. One end of the first diverter 314 abuts the inner wall of the smoke exhaust passage, and the other end of the first diverter 314 extends to the middle of the tube body 311. When oil smoke with a transverse flow component passes through the diverter, the diverter effectively guides and diverts the oil smoke with a transverse flow component, further ensuring the exhaust effect of the oil smoke.

[0060] It should be understood that after the oil smoke from the volute 32 enters the tube body 311 of the smoke exhaust pipe 31 through its air outlet, the oil smoke with a transverse flow component is located on one side of the smoke exhaust channel of the tube body 311 (which can be the upper side, lower side, left side or right side). The first diverter 314 is arranged corresponding to the oil smoke with a transverse flow component and one side of the first diverter 314 is arranged close to the inner wall of the smoke exhaust channel, which avoids the oil smoke with a transverse flow component from passing through the space between the first diverter 314 and the inner wall of the smoke exhaust channel, so that the oil smoke diversion effect of the guide channel is further improved, and the oil smoke emission effect is further improved.

[0061] In addition, the first diverter 314 extends along the radial cross-section of the tube body 311 , further ensuring the effect of guiding and diverting the oil smoke with a transverse flow component.

[0062] Furthermore, if Figure 2 and Figure 3As shown, the smoke exhaust pipe 31 also includes a connecting shaft 312 and a driving member (not shown). The first plate-like structure cooperates with the pipe body 311 through the connecting shaft 312. The driving member is provided on the pipe body 311 and is in transmission connection with the connecting shaft 312. Specifically, the first diverter 314 cooperates with the pipe body 311 through the connecting shaft 312. The driving member is in transmission connection with the connecting shaft 312. When it is necessary to adjust the position of the first air guide surface 3141, the driving member drives the connecting shaft 312 to rotate, and the first diverter 314 rotates synchronously with the connecting shaft 312, thereby adjusting the first air guide surface 3141 located on the first diverter 314. By providing the driving member and the connecting shaft 312, the convenience of adjusting the first air guide surface 3141 is improved, so that the exhaust effect of the oil smoke is further improved.

[0063] It should be pointed out that the driving component is a servo motor or a stepper motor, etc., which improves the control accuracy, makes the adjustment of the first air guide surface 3141 more precise, and further ensures the emission effect of oil smoke.

[0064] In addition, the driving component is electrically connected to the controller of the range fume extraction device 30, and the controller is electrically connected to the motor of the fan. The controller determines the flow and pressure parameters of the range fume extraction device 30 through the output current and speed of the motor (the flow and pressure parameters correspond to different working conditions). The current working condition of the range fume extraction device 30 is determined by using the flow and pressure parameters of the range fume extraction device 30, and then the first diverter member 314 is adjusted by starting the driving component, so that the first air guide member adapts to the current working condition of the range fume extraction device 30.

[0065] Furthermore, if Figure 2 and Figure 3 As shown, the smoke exhaust pipe 31 further includes a second diverter 313 disposed within the pipe body 311. The second diverter 313 is located on a side of the first diverter 314 away from the inlet of the pipe body 311. Specifically, the second diverter 313 is disposed within the pipe body 311 and on a side of the first diverter 314 away from the inlet of the pipe body 311. When oil smoke with a transverse flow component enters the pipe body 311 of the smoke exhaust pipe 31, the oil smoke with a transverse flow component is first guided and diverted by the first diverter 314 and then guided and diverted by the second diverter 313. This further enhances the guiding and diverting effect of the oil smoke with a transverse flow component, thereby further improving the exhaust efficiency of the oil smoke.

[0066] Furthermore, if Figure 2 and Figure 3As shown, the second diverter 313 is a second plate-like structure, which is arranged along the length of the tube body 311. The two ends of the second plate-like structure are respectively connected to the inner wall of the tube body 311 in a detachable manner. Specifically, the second diverter 313 is a second plate-like structure, and the second plate-like structure is arranged along the length of the tube body 311 and passes through the middle of the tube body 311. The two ends of the second diverter 313 are respectively fixed to the inner wall of the tube body 311. When the oil smoke passes through the second diverter 313, the second diverter 313 guides and diverts the oil smoke, causing the oil smoke to flow along the length of the tube body 311, further reducing the energy consumption of the oil smoke during the flow process, and improving the effect of oil smoke emission.

[0067] It should be understood that the second diverter 313 is detachably connected to the tube body 311, so that the tube body 311 and the second diverter 313 can be processed separately. At the same time, when the second diverter 313 is damaged, it can be replaced separately.

[0068] In addition, the second diverter 313 can be matched with the tube body 311 by means of snap connection or screw connection. Here, the specific connection method between the second diverter 313 and the tube body 311 is no longer limited in this application.

[0069] Furthermore, if Figure 2 and Figure 3 As shown, the second plate-like structure is positioned adjacent to the first plate-like structure, and the position where the connecting shaft 312 engages the first plate-like structure is adjacent to the second plate-like structure, so that oil smoke can continuously transition from the first plate-like structure to the second plate-like structure. Specifically, the first plate-like structure and the second plate-like structure are positioned adjacent to each other (with a sufficiently small gap between them). When the first plate-like structure is positioned along the length of the tube body 311 under the action of the driving member, the first plate-like structure and the second plate-like structure are connected to form a coplanar structure.

[0070] When the oil smoke with a horizontal flow component enters the tube body 311 of the exhaust pipe 31, the oil smoke with a horizontal flow component is first guided and diverted by the first diverter 314, and then guided and diverted by the second diverter 313. Since the first diverter 314 and the second diverter 313 are arranged adjacent to each other, the oil smoke can be directly guided and diverted by the second diverter 313 after passing through the first diverter 314, which further ensures the effect of guiding and diverting the oil smoke, and further improves the emission effect of the oil smoke.

[0071] Furthermore, if Figure 2 and Figure 3As shown, the side of the second plate-like structure facing the inlet is provided with a third air-guiding surface 3131. Specifically, the second plate-like structure is disposed within the tube body 311 and has a side facing the inlet of the tube body 311, which constitutes the third air-guiding surface 3131. When the oil smoke enters the tube body 311 of the exhaust pipe 31 through the volute 32, the third air-guiding surface 3131 guides and diverts the oil smoke, further ensuring that the oil smoke flows along the length of the tube body 311, avoiding energy loss during the flow of the oil smoke, and further ensuring the exhaust effect of the oil smoke.

[0072] Furthermore, the third air guide surface 3131 is a second convex arc surface. Specifically, when the oil smoke enters the tube body 311 of the smoke exhaust pipe 31, the oil smoke is guided and diverted by the second convex arc surface, avoiding the whistling generated by the oil smoke being guided and diverted, thereby reducing the noise during the oil smoke exhaust process and further improving the user experience.

[0073] It should be pointed out that the material of the second diverter 313 can be metal or non-metal. When the second diverter 313 is non-metal (plastic or nylon, etc.), the second diverter 313 with a second plate-like structure has a certain thickness, and the side of the second plate-like structure facing the inlet of the tube body 311 also has a certain thickness. The thickness position is rounded to form a third air-guiding surface 3131 of the second convex arc surface; when the second diverter 313 is metal (iron or stainless steel, etc.), the thickness of the second diverter 313 with a second plate-like structure is relatively small, and the thickness of the side of the second plate-like structure facing the inlet of the tube body 311 is relatively thin, and no rounding treatment is required at this time.

[0074] In addition, the first flow guide member, the second flow guide member, the connecting shaft 312 and the driving member form a flow guide component. The number of the flow guide components can be one or more. When there are multiple flow guide components, each flow guide component is arranged at intervals in the tube body 311, and the linearity of the first flow guide member and the second flow guide member in each flow guide component can be consistent or inconsistent.

[0075] In other embodiments, the first diverter 314 is arranged according to specific working conditions and flow fields, and the second diverter 313 can be divided into more sections for profile design according to different flow fields.

[0076] like Figures 1 to 3 As shown, the present invention also proposes a fume suction device 30, which includes a smoke exhaust pipe 31, a volute 32 and a fan. The smoke exhaust pipe 31 is the smoke exhaust pipe 31 described above, the air outlet of the volute 32 is connected to the smoke exhaust pipe 31, the volute tongue of the volute 32 is arranged close to the first air guide surface 3141 of the diverter, and the fan is arranged in the volute 32.

[0077] Specifically, the pipe body 311 of the smoke exhaust pipe 31 is connected to the volute 32 of the oil fume suction device 30. Under the action of the fan of the oil fume suction device 30, the oil fume enters the volute 32 through the air inlet of the volute 32 and then enters the pipe body 311 through the air outlet of the volute 32. The oil fume entering the pipe body 311 has a transverse flow component. The first air guide surface 3141 guides the oil fume with the transverse flow component so that the flow direction of the oil fume with the transverse flow component is consistent with the length direction of the pipe body 311, that is, the oil fume in the pipe body 311 flows along the length direction of the pipe body 311, thereby reducing the loss of oil fume flow energy, improving the oil fume discharge effect, and further improving the user experience. In addition, by rotating the first diverter 314 relative to the pipe body 311, the inclination angle of the first air guide surface 3141 relative to the length direction of the pipe body 311 can be adjusted, thereby meeting the oil fume discharge effect under different working conditions and effectively reducing the noise during the oil fume discharge process.

[0078] like Figures 1 to 3 As shown, the present invention further proposes a combined cooking device 100, which includes a fume extraction device 30, a housing 20, a cooking table 10 and a heating device. The fume extraction device 30 is the fume extraction device 30 described above, and is arranged in the housing 20. A cooking position 11 is provided on the cooking table 10, and the cooking table 10 cooperates with the housing 20. The heating device cooperates with the cooking table 10 and is arranged corresponding to the cooking position 11.

[0079] Specifically, the pipe body 311 of the smoke exhaust pipe 31 of the oil fume suction device 30 is connected to the volute 32 of the oil fume suction device 30. Under the action of the fan of the oil fume suction device 30, the oil fume enters the volute 32 through the air inlet of the volute 32 and then enters the pipe body 311 through the air outlet of the volute 32. The oil fume entering the pipe body 311 has a transverse flow component. The first air guide surface 3141 guides the oil fume with the transverse flow component so that the flow direction of the oil fume with the transverse flow component is consistent with the length direction of the pipe body 311, that is, the oil fume in the pipe body 311 flows along the length direction of the pipe body 311, thereby reducing the loss of oil fume flow energy, improving the oil fume exhaust effect, and further improving the user experience. In addition, by rotating the first diverter 314 relative to the pipe body 311, the inclination angle of the first air guide surface 3141 relative to the length direction of the pipe body 311 can be adjusted, thereby meeting the oil fume exhaust effect under different working conditions and effectively reducing the noise during the oil fume exhaust process.

[0080] It should be pointed out that the heating device can be an electromagnetic heating structure or a gas heating structure. When the heating device can be an electromagnetic heating structure, the heating device is arranged inside the box and corresponds to the cooking position of the cooking table. When the heating device can be a gas heating structure, the heating device is arranged outside the box and corresponds to the cooking position of the cooking table.

[0081] In addition, the above-mentioned combined cooking device is an integrated stove, etc. For the structures of other parts of the combined cooking device, please refer to the existing technology and will not be described in detail here.

[0082] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A smoke exhaust pipe for a fume extraction device, characterized in that: The smoke exhaust pipe comprises: a pipe body, the pipe body being used to communicate with the volute of the oil fume extraction device; The first flow diverter is provided with a first air guide surface on the first flow diverter, and the first flow diverter is rotatably arranged in the tube body and corresponding to the passing position of the oil smoke with a flow component, wherein the first flow diverter is a first plate-shaped structure, one side of the first plate structure is arranged close to the inner wall of the tube body, and the other side of the first plate structure is arranged close to the middle of the tube body, and the side surface of the first plate structure close to the volute tongue of the volute is the first air guide surface, and the first air guide surface can be inclined in the length direction of the tube body, and the first air guide surface is used to adjust the flow direction of the oil smoke with a transverse flow component so that the flow direction of the oil smoke with a transverse flow component is consistent with the length direction of the tube body, and the first plate structure is further provided with a second air guide surface, and the second air guide surface is located on the side of the first plate structure facing the inlet of the tube body; The smoke exhaust pipe further includes a second diverter disposed in the pipe body, and the second diverter is located on a side of the first diverter away from the inlet of the pipe body.

2. The smoke exhaust pipe according to claim 1, characterized in that: The second wind guiding surface is a first convex arc surface.

3. The smoke exhaust pipe according to any one of claims 1 or 2, characterized in that: The smoke exhaust pipe also includes: a connecting shaft, through which the first plate-like structure cooperates with the tube body; A driving member is provided on the tube body and is in driving connection with the connecting shaft.

4. The smoke exhaust pipe according to claim 3, characterized in that: The second flow dividing member is a second plate-shaped structure, which is arranged along the length direction of the tube body. Both ends of the second plate-shaped structure are respectively connected to the inner wall of the tube body in a detachable manner.

5. The smoke exhaust pipe according to claim 4, characterized in that: The second plate-like structure is arranged close to the first plate-like structure, and the position where the connecting shaft cooperates with the first plate-like structure is close to the second plate-like structure, so that the oil smoke can continuously transition from the first plate-like structure to the second plate-like structure.

6. The smoke exhaust pipe according to claim 5, characterized in that: A third air guiding surface is provided on the side of the second plate-shaped structure facing the inlet.

7. The smoke exhaust pipe according to claim 6, characterized in that: The third wind guide surface is a second convex arc surface.

8. A fume extraction device, characterized in that: The oil fume extraction device comprises: A smoke exhaust pipe, wherein the smoke exhaust pipe is the smoke exhaust pipe according to any one of claims 1 to 7; a volute, wherein the air outlet of the volute is connected to the smoke exhaust pipe, and the volute tongue of the volute is arranged close to the first air guide surface of the diverter; A fan is arranged in the volute.

9. A combined cooking device, characterized in that: The combined cooking device comprises: An oil fume extraction device, wherein the oil fume extraction device is the oil fume extraction device according to claim 8; a box body, wherein the oil fume suction device is arranged in the box body; A cooking table, wherein a cooking position is provided on the cooking table and the cooking table cooperates with the box body; A heating device is matched with the cooking table and is arranged corresponding to the cooking position.

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