A stove with oil fume exhaust function

Abstract

The present invention provides a stove with a fume exhaust function. The combustion area of ​​the gas stove is located below the heat-conducting panel, and the pot is directly placed on the heat-conducting panel. The infrared heat energy generated by the combustion of the burner transfers the heat energy to the pot through the heat-conducting panel to heat it. The upper surface of the stove becomes neater and easier to clean, and the wind resistance of small and micro fires is stronger. The defect of the pot placed on the elevated pot rack in the prior art is overcome, and the combustion is more stable. Moreover, on the one hand, the exhaust system on the stove body absorbs and exhausts the fume generated during the cooking process of food. On the other hand, the same fan can also produce a pneumatic effect when it is running, which promotes the hot fume generated by the combustion in the combustion chamber to be sucked into the exhaust system and then discharged together with the airflow containing fume sucked from the fume suction port. It can not only absorb and exhaust, process and purify the fume, but also promote the air convection circulation when the closed burner is burning, so that the combustion is more complete, and one machine has multiple effects.

Description

Technical Field

[0001] The invention relates to the field of kitchen equipment, and in particular to a stove with an oil fume exhaust function. Background Art

[0002] With the improvement of people's living standards, living environment and the emergence of open kitchens, consumers are increasingly demanding products that are beautiful, convenient, safe, easy to clean, and have high space utilization, especially high flat area utilization. At the same time, with the emergence of open kitchens and the increase in the density of urban residential buildings, products that can purify oil fumes are also imminent.

[0003] However, at present, gas stoves basically adopt external combustion and external pot supports, which are not beautiful in appearance, inconvenient to use, difficult to clean, and unstable in pot placement, which poses certain safety hazards. There are also many problems that have not been effectively solved, such as low space utilization, especially low utilization of flat area, etc., and the stoves and range hoods sold on the market are basically separated. Although some integrated stoves have appeared in recent years, they still adopt open combustion heating and external pot supports. With the promotion of the overall kitchen design concept, the integrated stove adopts an independent module design, which cannot meet the needs of the overall kitchen aesthetic design and cannot be recognized by consumers in first- and second-tier cities. In addition, the range hoods and integrated stoves on the market do not use oil fume purification technology, and the oil fume is directly discharged to the outside, causing great harm to the urban atmospheric environment. Gas stoves also have many problems, such as low thermal efficiency, exhaust gas carbon monoxide and nitrogen oxides generated during combustion are all discharged indoors, low fire and micro fire wind resistance is relatively weak, the existing gas stove pot bracket is not very stable to place the pot, and the existing gas stove is not convenient to clean, especially the pot bracket and the liquid tray are more difficult to clean. In addition, the pot bracket on the existing gas stove occupies the entire plane area of ​​the gas stove, which is a great waste of plane space, especially in modern cities presenting a large city with small space living environment, the use of every square meter of indoor space is very important.

[0004] In addition, the non-open gas stove without pot rack in the prior art is mainly to simply set a heat-conducting panel above the burner, and the hot smoke generated by its combustion directly diffuses into the air, which has many defects when used. For example, the heat-conducting efficiency of the heat-conducting panel is low, the pot heats up slowly, and the heat conduction cannot be directional, causing unnecessary high temperatures to be generated in other areas of the stove panel, that is, causing a serious decrease in thermal efficiency. On the other hand, it is easy to scald the operator and damage food or equipment. It is precisely for the above reasons that for a long time, fully enclosed gas stoves have not been recognized by consumers and marketed. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the inventor has conducted creative research on the deficiencies of the prior art and provided a stove with a fume exhaust function to solve at least one of the aforementioned technical problems.

[0006] Specifically, the technical solution is as follows:

[0007] A stove with an oil fume exhaust function, comprising: a stove body, an oil fume suction device, a closed gas stove and an exhaust system, wherein the closed gas stove is mounted on the stove body, the closed gas stove comprises a heat conduction panel, a burner and a heat insulation and flow guide device, the heat insulation and flow guide device is arranged on the periphery of the burner, the heat conduction panel is arranged on the top of the heat insulation and flow guide device and forms a combustion chamber with the heat insulation and flow guide device, and the combustion surface layer of the burner is located in the combustion chamber;

[0008] The oil fume suction device is arranged on the stove body, and is provided with an oil fume suction port for sucking oil fume formed during the cooking process of food, and the stove body is provided with an oil fume exhaust channel, and the oil fume exhaust channel is connected to the oil fume suction port, and the heat insulation and flow guiding device is provided with an exhaust port for exhausting hot smoke in the combustion chamber, and the stove body is also provided with a hot smoke exhaust channel, and the exhaust port is connected to the hot smoke exhaust channel;

[0009] The exhaust system is arranged on the stove body, and is connected to both the oil fume exhaust passage and the hot smoke exhaust passage, so that when the exhaust system is started, negative pressure is formed at the oil fume intake port to inhale oil fume, and negative pressure is also formed at the exhaust port to inhale hot smoke in the combustion chamber.

[0010] Among them, the oil fume exhaust channel and the hot smoke exhaust channel are both channel-type structures, which can be formed by pipes, by the cavity of the shell, or by a combination of channel-type structures such as pipes and cavities.

[0011] In a specific embodiment, the exhaust system includes a fan and a mixing channel, the air inlet end of the mixing channel is respectively connected to the hot smoke exhaust channel and the oil fume exhaust channel, and the fan is connected to the mixing channel so that negative pressure is formed at the oil fume intake port and the exhaust port at the same time when the fan is started.

[0012] In a specific embodiment, the oil fume suction device comprises one or more oil fume suction arms, the upper part of the oil fume suction arm is provided with an oil fume suction port, the lower part of the oil fume suction arm is provided with an air outlet, and the air outlet of the oil fume suction arm is connected to the oil fume exhaust channel;

[0013] Preferably, it further comprises a receiving device corresponding to the oil fume suction arm one by one, the air outlet of the oil fume suction arm is movably docked or detachably fixedly docked with the receiving device, the receiving device is connected to the oil fume exhaust channel, and the receiving device is configured to have a wind passing characteristic;

[0014] More preferably, it further comprises a disposable oil fume purification and separation device, the disposable oil fume purification and separation device is one layer or multiple layers, and the disposable oil fume purification and separation device is detachably arranged between the air outlet of the oil fume suction arm and the receiving device;

[0015] Further preferably, the connection between the fume extraction arm and the receiving device is arc-shaped, so that the fume extraction arm can rotate on the receiving device; and a magnetic component is provided at the connection between the fume extraction arm and the receiving device for positioning the fume extraction arm.

[0016] In a specific embodiment, the oil fume suction device includes one or more oil fume suction boxes distributed on the stove body, and the oil fume suction boxes are detachably connected to the oil fume exhaust channel.

[0017] In a specific embodiment, the oil fume extraction box includes one or more layers of oil fume intercepting mesh plates, one or more layers of disposable oil fume purification and separation devices, and one or more layers of support plate nets, which are stacked in sequence and detachably connected together. The oil fume intercepting mesh plates form an airflow containing oil fume to be sucked into the oil fume suction port, and the airflow purified and separated by the disposable oil fume purification and separation device flows into the oil fume exhaust channel through the support plate net.

[0018] In a specific embodiment, a strip-shaped oil fume filter device is provided in the oil fume box, and the strip-shaped oil fume filter device is provided in the oil fume box and covers the air inlet cavity of the oil fume box. The strip-shaped oil fume filter device is configured to be manually driven by a user or automatically moved from one side to the other side in the air inlet cavity by a driving mechanism, so that a used portion of the strip-shaped oil fume filter device leaves the air inlet cavity and an unused portion moves to the air inlet cavity synchronously.

[0019] Preferably, the unused portion of the belt-shaped oil fume filtering device is in the form of a winding body or a stacked body;

[0020] Further preferably, the oil fume absorption box is provided with a material receiving shaft, and the used part of the belt-shaped oil fume filtering device leaving the air inlet cavity is wound on the material receiving shaft;

[0021] More preferably, it further comprises a manual rotating mechanism for driving the receiving shaft to rotate. More preferably, the manual rotating mechanism comprises a handle, one end of the handle is connected to the receiving shaft, and the other end is exposed from the oil smoke box;

[0022] Further preferably, the driving mechanism comprises a driving motor, and the driving motor is directly connected to the receiving shaft or connected to the receiving shaft through a transmission mechanism;

[0023] Further preferably, a surface of the receiving shaft in contact with the belt-shaped oil fume filtering device is provided with a plurality of protrusions.

[0024] Preferably, a honeycomb-type porous filter body is arranged in the air inlet cavity of the oil fume suction box, and the honeycomb-type porous filter body is arranged on the lower side of the belt-shaped oil fume filtering device.

[0025] In a specific embodiment, the belt-shaped oil fume filter device is annular, a driving pulley and a driven pulley are arranged in the oil fume suction box, two ends of the belt-shaped oil fume filter device are respectively sleeved on the driving pulley and the driven pulley, and also includes a driving mechanism for driving the driving pulley to rotate; preferably, the driving mechanism includes a driving motor, and the driving motor is directly connected to the driving pulley or connected to the driving pulley through a transmission mechanism;

[0026] Preferably, it also includes a cleaning device for cleaning the belt-shaped oil fume filtering device;

[0027] Preferably, a surface of the driving pulley and / or the driven pulley in contact with the belt-shaped oil fume filtering device is provided with a plurality of protrusions.

[0028] In a specific embodiment, the oil fume suction device comprises a vertical arm, the vertical arm extends upward relative to the stove body, the vertical arm is provided with an oil fume suction port above the heat conduction panel, the oil fume exhaust channel extends from the stove body to the vertical arm, and the oil fume exhaust channel is connected to the oil fume suction port;

[0029] Preferably, an oil fume filter assembly is provided in the area of ​​the oil fume exhaust passage located on the vertical arm;

[0030] More preferably, the oil fume filter assembly includes a disposable oil fume filter consumable; more preferably, it includes a sheet-shaped disposable oil fume filter consumable;

[0031] More preferably, the oil fume filter assembly includes a belt-shaped motion-type filter device; more preferably, the belt-shaped motion-type filter device is a winding body or a stacked body;

[0032] Further preferably, the oil fume filter assembly includes an oil fume filter plate; further preferably, the oil fume filter plate is detachably disposed in the oil fume exhaust passage.

[0033] In a specific embodiment, the vertical arm is arranged on the stove body and extends vertically upward relative to the heat-conducting panel, the oil fume exhaust channel extends downward from the vertical arm to the stove body and is connected to the hot fume exhaust channel, the upper part of the vertical arm protrudes forward relative to the lower part of the vertical arm, the oil fume suction port is arranged on the vertical surface of the lower part of the vertical arm and / or the bottom surface of the upper part of the vertical arm, and side arms are respectively arranged on both sides of the vertical arm, and the side arms extend forward relative to the vertical arm and extend upward relative to the heat-conducting panel.

[0034] In a specific embodiment, the upper part of the vertical arm is provided with one or more of an oven, a steamer, and a seasoning storage system; or the lower space of the stove body is provided with one or more of an oven, a steamer, and a seasoning storage system;

[0035] Preferably, the seasoning storage system includes an automatic feeding system;

[0036] Preferably, the seasoning storage system comprises a manually controlled seasoning box;

[0037] Preferably, the seasoning storage system comprises a press-type seasoning box;

[0038] Preferably, the seasoning storage system comprises a metering seasoning box.

[0039] In a specific embodiment, an oxygen supply channel is formed in one of the side arms, one end of the oxygen supply channel is connected to the outside atmosphere, and the other end is connected to the interior of the stove body, so as to supply fresh air to the burner;

[0040] Preferably, a detachable oil collecting box is provided on one of the side arms, and the oil collecting box passes through the side arm and extends into the vertical arm, so as to collect oil stains in the vertical arm.

[0041] In a specific embodiment, an adjusting knob is provided on one of the side arms, a gas adjusting control valve body is provided on the stove body, the adjusting knob is connected to the adjusting knob by a transmission mechanism, and the gas adjusting control valve body is connected to the burner through a gas delivery pipeline, so as to control the fire power of the burner;

[0042] Preferably, the transmission mechanism includes a flexible shaft transmission mechanism, the flexible shaft transmission mechanism includes an adjusting knob and a flexible shaft, the adjusting knob is connected via the flexible shaft transmission, further preferably, a reset spring is arranged between the adjusting knob and the flexible shaft; further preferably, the rotating shaft includes a flexible shaft body and a sleeve.

[0043] In a specific embodiment, the closed gas stove further comprises a blocking and diverting assembly, which is arranged in the combustion chamber and located at the periphery of the combustion surface layer of the burner, and is used to block and divert the hot flue gas diffused to the blocking and diverting assembly; the smoke exhaust port is located in the area of ​​the heat insulation guide device located at the periphery of the blocking and diverting assembly, and a smoke exhaust channel is formed between the blocking and diverting assembly and the inner surface of the heat insulation guide device, and is used to guide the hot flue gas blocked and diverted by the blocking and diverting assembly to the smoke exhaust port;

[0044] Preferably, the heat insulation and flow-conducting device includes a bottom wall and an annular side wall, the bottom wall is arranged on the periphery of the burner and faces the heat-conducting panel, so that the hot flue gas generated by the combustion of the burner diffuses toward the periphery from the gap formed between the heat-conducting panel and the bottom wall, the top of the annular side wall is connected to the heat-conducting panel, and the bottom of the annular side wall is connected to the bottom wall; further preferably, the bottom wall and the annular side wall are an integrally formed structure.

[0045] In a specific embodiment, the blocking and diverting assembly includes a blocking and diverting ring disposed between the burner and the smoke exhaust port, or includes a plurality of blocking and diverting rings of the same or different types disposed between the burner and the smoke exhaust port;

[0046] The blocking and diverting ring is arranged around the burner, and has a plurality of gas diverting and guiding channels on the blocking and diverting ring, so that the hot flue gas is blocked by the blocking and diverting ring to generate turbulence, and enters the exhaust channel after being diverted by the plurality of gas diverting and guiding channels;

[0047] Preferably, the blocking and diverting ring is configured to have heat-conducting properties, and preferably, the top of the blocking and diverting ring is butted against the heat-conducting panel;

[0048] Preferably, a spring is provided in the heat-insulating flow-guiding device for pressing the top of the blocking and diverting ring against the heat-conducting panel;

[0049] Preferably, a spring is provided between the heat insulating and flow guiding device and the cooker body, for pressing the heat insulating and flow guiding device and the heat conducting panel tightly.

[0050] The blocking and diverting ring is in the form of a complete ring or an incomplete ring with an open gap.

[0051] In a specific embodiment, the blocking and diverting ring comprises a fin-shaped blocking and diverting ring, the fin-shaped blocking and diverting ring comprises a plurality of fins, each of the fins is distributed in a circular direction, and the gaps between the fins respectively form the gas diversion guide channels, so that when the hot flue gas collides with the fins, it is blocked by the fins to generate turbulence, and enters the exhaust channel after being diverted by the plurality of the gas diversion guide channels;

[0052] Preferably, the fins include heat-conducting fins;

[0053] Preferably, the fin-shaped blocking and diverting ring further comprises one or more connecting parts for connecting the fins;

[0054] Preferably, the connecting portion comprises an annular connecting portion, and each of the fins is respectively connected to the annular connecting portion, wherein the annular connecting portion is in a complete annular shape or an incomplete annular shape with an open notch.

[0055] Preferably, the connection portion comprises a thermally conductive connection portion.

[0056] In a specific embodiment, the blocking and diverting ring includes a strip-shaped blocking and diverting ring, and a plurality of air holes are opened on the belt body of the strip-shaped blocking and diverting ring, so that when the hot flue gas collides with the belt body of the strip-shaped blocking and diverting ring, it is blocked by the belt body of the strip-shaped blocking and diverting ring to generate turbulence, and enters the smoke exhaust channel after being diverted through the plurality of air holes.

[0057] The belt-shaped blocking and diverting ring is in the form of a complete ring or an incomplete ring with an open gap.

[0058] In a specific embodiment, the blocking and diverting ring includes a belt-shaped blocking and diverting ring, and the belt-shaped blocking and diverting ring includes an annular corrugated belt. The gaps between the corrugations of the annular corrugated belt form the gas diversion guide channel, so that when the hot flue gas collides with the belt body of the annular corrugated belt, it is blocked by the belt body of the annular corrugated belt to generate turbulence, and enters the exhaust channel after being diverted through multiple gas diversion guide channels.

[0059] In a specific embodiment, a heat storage cavity is provided on the hot flue gas discharge channel, and the top of the heat storage cavity also includes a heat conduction panel to output the heat energy in the heat storage cavity;

[0060] Preferably, a blocking and diverting component is also provided in the heat storage cavity;

[0061] Preferably, there are one or more heat storage chambers.

[0062] In a specific embodiment, one or more stoves selected from the group consisting of an electric stove, an open gas stove, and an electric hybrid stove are also arranged beside the closed gas stove.

[0063] In a specific embodiment, a control system is further included, which is used to control the start and stop and / or operating parameters of the burner and the fan. Preferably, the control system includes:

[0064] The user instruction acquisition unit is preferably one or more of a button type, a knob type, a touch type, and a voice type;

[0065] A main control unit, used for receiving and analyzing user instructions, and issuing corresponding execution instructions to the burner and the fan;

[0066] Preferably, it also includes a display unit for displaying user instructions and / or the status of the burner and the fan;

[0067] Preferably, it also includes an Internet of Things module for exchanging information with household appliances other than the main control unit and / or the gas cooker;

[0068] Preferably, it also includes a face recognition system and / or a fingerprint recognition system for verifying whether the user's identity is qualified. If qualified, the user can operate the gas cooker; further preferably, it also includes an interconnected screen movement and split-screen display system.

[0069] The present invention has at least the following beneficial effects:

[0070] According to the present invention, the combustion area of ​​the gas stove is located below the heat-conducting panel, and the pot is placed directly on the heat-conducting panel. The infrared heat energy generated by the combustion of the burner transfers the heat energy to the pot through the heat-conducting panel to achieve its heating. Compared with the prior art, the existing pot support exposed on the upper surface of the stove can be eliminated, so that the upper surface of the stove becomes neat and easy to clean, and the wind resistance of small fire and micro fire is stronger. On the other hand, during the cooking process, the pot can be placed flat on the heat-conducting panel, which overcomes the defect of the pot being placed on the elevated pot support in the prior art and prevents unsafe accidents. Since there is no need for a pot support, the space on the panel surface is no longer occupied. When the user does not use the burner to heat the cooking dish, the panel surface space can be used by the user for other purposes, such as placing kitchen equipment or processing food in the panel area. Moreover, the upper surface of the stove is neater and flatter, making the entire stove and panel easier to clean.

[0071] At the same time, since the burner, bottom wall, and annular side wall are located below the heat-conducting panel, compared with the open-air combustion in the prior art, the combustion area is not affected by wind in the air, etc., and the combustion is more stable, especially when the fire is small or micro, the combustion is more stable and safer.

[0072] A more prominent beneficial effect is that, since the vertical arm of the present invention is arranged on the stove body, the vertical arm is provided with an oil fume suction port above the heat conduction panel, a fan and an oil fume exhaust channel are arranged inside the vertical arm, the oil fume exhaust channel is connected to the oil fume suction port, an exhaust port for discharging hot smoke in the combustion chamber is arranged on the heat insulation and flow guiding device, one end of the hot smoke exhaust channel is connected to the exhaust port, and the other end is connected to the oil fume exhaust channel, and the fan is arranged on the oil fume exhaust channel to form a negative pressure at the oil fume suction port to inhale oil fume, and also to form a negative pressure at the exhaust port to inhale hot smoke and make the hot smoke flow upward into the oil fume exhaust channel. Therefore, on the one hand, when the fan on the vertical arm is running, the oil fume generated during the cooking process of food is sucked and discharged, and on the other hand, the same fan can also generate a pneumatic effect when running, promoting the hot smoke generated by the combustion in the combustion chamber to be sucked into the vertical arm and then discharged together with the oil fume-containing airflow sucked from the oil fume suction port, which can not only suck and discharge, process and purify oil fume, but also promote the air convection circulation during the combustion of the closed burner, so that the combustion is more complete, and one machine has multiple effects.

[0073] Furthermore, the blocking and diverting assembly is provided to block and divert the hot flue gas diffused to the blocking and diverting assembly, so that when the high-temperature hot flue gas generated by the burner burns and flows from the combustion surface of the burner to the exhaust port, the blocking and diverting assembly has a blocking and diverting effect on the hot flue gas, so that the process of the hot flue gas flowing to the exhaust port is delayed and forms a turbulent effect, so that the hot flue gas contacts the heat-conducting panel and / or the blocking and diverting assembly for a longer period of time to fully release and transfer heat energy, and the hot flue gas and the infrared rays radiated by the turbulent effect are repeatedly refracted within the spacing and then radiate and transfer heat energy from the heat-conducting panel to the outside in a directional manner, thereby significantly improving the infrared heat radiation effect above the heat-conducting panel, and significantly improving the thermal efficiency of the fully enclosed gas stove. Furthermore, the heat-insulating and diverting device prevents heat diffusion, so that the heat generated by the burner burns is concentrated in the combustion chamber and released by radiation through the heat-conducting panel, so that the burner has a higher heat radiation effect, and other areas of the stove are not prone to unnecessary heat transfer, so that on the one hand, the thermal efficiency is higher, and on the other hand, it is safer.

[0074] Furthermore, the closed gas stove has a directional heat conduction panel, which can achieve higher thermal efficiency and greater safety.

[0075] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0077] Figure 1 is a first stereoscopic view of a cooker in Example 1;

[0078] Figure 2 is an exploded view of a cooker in Example 1;

[0079] Figure 3 is a cross-sectional view of a cooker in Example 1;

[0080] Figure 4 is an exploded view of the oil fume extraction device in Example 1;

[0081] Figure 5 is a partial cross-sectional view of a stove in Example 1;

[0082] Figure 6 This is a partial stereogram of a stove in Example 1

[0083] Figure 7 is a partial cross-sectional view of a stove in Example 1;

[0084] Figure 8 is a schematic diagram of the first blocking and diverting component in Example 1;

[0085] Fig. 9 is a first schematic diagram of the second blocking and diverting component in Example 1;

[0086] Fig.10 is a second schematic diagram of the second blocking and diverting component in Example 1;

[0087] Fig.11 is a schematic diagram of the third blocking and diverting component in Example 1;

[0088] Fig.12 is a three-dimensional diagram of a stove in Example 2;

[0089] Fig.13 is a partial cross-sectional view of a stove in Example 2;

[0090] Fig.14 is a three-dimensional diagram of a stove in Example 3;

[0091] Fig.15 is a partial cross-sectional view of a stove in Example 3;

[0092] Fig.16 is a cross-sectional view of a cooker in Example 4;

[0093] Fig.17 is a three-dimensional diagram of a stove in Example 5;

[0094] Fig.18 is a three-dimensional diagram of a stove in Example 6;

[0095] Fig.19 is a three-dimensional diagram of a stove in Example 7;

[0096] Fig. 20 is a schematic diagram of air circulation of a cooker in Example 8;

[0097] Fig.21 is a three-dimensional diagram of a stove in Example 9;

[0098] Fig. 22 is a schematic diagram of the transmission mechanism in Example 10;

[0099] Fig.23 is a three-dimensional diagram of a stove in Example 11;

[0100] Fig.24 is a three-dimensional diagram of a stove in Example 12;

[0101] Fig.25 It is a three-dimensional diagram of a stove in Example 13.

[0102] Description of main component symbols:

[0103] 1-cooker body; 2-heat-conducting panel; 3-vertical arm; 4-fan; 5-display screen; 6-control system; 7-oxygen supplement channel; 8, 9-side wall; 10-smoke collection area; 11, 20-oil smoke suction port; 12-oil receiving box; 13-heat insulation and flow guiding device; 14-blocking and diverting assembly; 141-gas through hole; 15-burner; 16-gas transmission pipeline; 17-gas regulating and controlling valve body; 18-exhaust port; 19-smoke exhaust channel; 21-hot smoke exhaust channel; 22-oil smoke exhaust channel; 23-hot smoke; 24-oil smoke; 25-oven; 29-belt blocking and diverting ring; 291-corrugation; 292-gap; 61-fin; 36-mixing channel; 62-gas diversion and guiding channel; 63-connecting part; 64, 65-mounting hole; 28-heat storage chamber; 30-open gas stove; 1311, 1322-metal layer; 1312, 1323-insulating material layer; 1313, 1321-vacuum layer; 41-flexible shaft body; 42-flexible shaft sleeve; 43-reset spring; 44-adjusting knob; 33-exhaust pipe; 311-box cover; 312-belt oil fume filter device; 313-honeycomb porous filter body; 314-box body; 315-material collection shaft; 316-air inlet cavity; 320-belt oil fume filter device; 321-driving pulley; 322-driven pulley; 323, 326-auxiliary wheels; 324-water tank; 325-water exchange pipe; 317-oil fume interception mesh plate; 90, 318-disposable oil fume purification and separation device; 91, 319-receiving device. DETAILED DESCRIPTION

[0104] Hereinafter, various embodiments of the present invention will be described more fully. The present invention may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present invention to the specific embodiments disclosed herein, but the present invention should be understood to cover all adjustments, equivalents and / or alternatives falling within the spirit and scope of the various embodiments of the present invention.

[0105] Example 1

[0106] like Figure 1-Figure 11As shown, this embodiment provides a stove with a fume exhaust function, including: a stove body 1, a fume suction device, a closed gas stove and an exhaust system. The closed gas stove is installed on the stove body 1. The closed gas stove includes a heat conduction panel 2, a burner 15 and a heat insulation guide device 13. The heat insulation guide device 13 is arranged on the periphery of the burner 15. The heat conduction panel 2 is arranged on the top of the heat insulation guide device 13 and forms a combustion chamber with the heat insulation guide device 13. The combustion surface layer of the burner 15 is located in the combustion chamber. The fume suction device is arranged on the stove body 1. The fume suction device is provided with an oil fume suction port 11 for sucking the fume formed during the cooking process of food. The stove body 1 is provided with an oil fume exhaust channel 22, which is connected to the oil fume suction port 11. The heat insulation guide device 13 is provided with an exhaust port 18 for exhausting hot fume in the combustion chamber. The stove body 1 is also provided with a hot fume exhaust channel 21, which is connected to the hot fume exhaust channel 21. The exhaust system is arranged on the stove body 1, and the exhaust system is connected to both the oil smoke exhaust channel 22 and the hot smoke exhaust channel 21, so that when the exhaust system is started, negative pressure is formed at the oil smoke intake port 11 to suck in oil smoke 24, and negative pressure is also formed at the exhaust port 18 to suck in hot smoke 23 in the combustion chamber. Exemplarily, a smoke exhaust pipe 33 is arranged on the stove body 1, and the smoke exhaust pipe 33 is connected to the fan 4 to exhaust the airflow delivered by the fan 4.

[0107] The burner 15 introduces gas and mixes it with air, and then burns it to convert chemical energy into heat energy for release. As a preferred burner 15, it at least includes a gas intake pipe, an air intake pipe, a mixing chamber, and a combustion surface layer. It is further preferred that the combustion surface layer has a metal or ceramic porous carrier. After the gas and air are mixed in the mixing chamber, they burn on the surface of the metal or ceramic porous carrier and release heat energy mainly in the form of infrared radiation.

[0108] Among them, the heat-conducting panel 2 is used to transfer the infrared heat energy released by the combustion of the burner 15. In a preferred embodiment, the heat-conducting panel 2 is a directional heat-conducting panel 2, so that the infrared rays are conducted and radiated in the direction of penetrating the heat-conducting panel 2 from the spacing to the outside, but are not conducted along the extension direction of the heat-conducting panel 2 itself. Therefore, when the gas cooker is in use, the area where the heat-conducting panel 2 is located above the burner 15 is a high-temperature area, and the temperature of other areas does not increase significantly. Compared with the prior art in which the entire panel is heated when the burner 15 burns under the metal panel, this embodiment has significant progress, the heat is concentrated above the combustion area, the thermal efficiency is higher, and unnecessary temperature rise in other areas of the panel is prevented, which can prevent scalding users and allow other areas of the panel to be used for other purposes. Preferably, the heat-conducting panel 2 includes a directional heat-conducting microcrystalline panel. In another preferred embodiment, the top of the cooker body 1 is an upper shell or a top panel, and the upper shell or the top panel has an opening for embedding the heat-conducting panel 2. The upper shell or the top panel has a non-thermal conductive property, or the upper shell or the top panel has a thermal conductive property, but the upper shell or the top panel is separated from the thermal conductive panel 2 by a non-thermal conductive material.

[0109] Among them, for the directional heat-conducting panel 2, heat energy is directionally transported to the pot on the heat-conducting surface in the direction from the inside to the outside, and heat is blocked along the extension direction of the heat-conducting panel 2 itself. The first preferred embodiment is that the heat-conducting panel 2 includes a directional heat-conducting microcrystalline plate. The second preferred embodiment is that the heat-conducting panel 2 includes a heat-conducting panel 2 made of a material with a directional heat-conducting function; the third preferred embodiment is that the heat-conducting panel 2 includes multiple layers of directional heat-conducting microcrystalline plates stacked on each other. The fourth preferred embodiment is that the heat-conducting panel 2 includes a heat-conducting panel 2 formed by stacking more than one layer of directional heat-conducting microcrystalline plates and metal plates.

[0110] In this embodiment, the heat-insulating and flow-guiding device 13 includes a bottom wall and an annular side wall. The bottom wall is arranged at the periphery of the burner 15 and faces the heat-conducting panel 2, so that the hot flue gas generated by the combustion of the burner 15 diffuses to the periphery from the gap formed between the heat-conducting panel 2 and the bottom wall. The top of the annular side wall is connected to the heat-conducting panel 2, and the bottom of the annular side wall is connected to the bottom wall. Preferably, the bottom wall and the annular side wall are an integrally formed structure. In this embodiment, the annular side wall is one or more layers set up on the bottom wall to prevent the hot flue gas from leaking outward. In this embodiment, the bottom wall is one or more layers set up around the burner 15 to prevent the heat energy in the gap from diffusing outward.

[0111] In this embodiment, at least one of the bottom wall and the annular side wall has a heat insulation function, and the following are specific implementation methods: First, the bottom wall and / or the annular side wall are made of heat insulation material. Second, the bottom wall and / or the annular side wall each have a mixed structure of more than one vacuum layer. Third, the bottom wall includes a mixed structure of a heat insulation material and a vacuum layer. Fourth, the annular side wall includes a mixed structure of a heat insulation material and a vacuum layer. In other embodiments, the bottom wall has a mixed layer made of at least two of the metal layer 1322, the vacuum layer 1321, and the insulation material layer 1323. In other embodiments, the annular side wall has a mixed layer made of at least two of the metal layer 1311, the vacuum layer 1313, and the insulation material layer 1312.

[0112] Preferably, a mounting hole for mounting the burner 15 is provided at the center of the bottom wall, and a protective ring is provided on the hole wall of the mounting hole.

[0113] Preferably, there is a protective shell covering the bottom wall and the annular side wall.

[0114] In this embodiment, the closed gas stove also includes a blocking and diverting component 14, which is arranged in the combustion chamber and located on the periphery of the combustion surface layer of the burner 15, and is used to block and divert the hot flue gas diffused to the blocking and diverting component 14; the smoke exhaust port is in the area of ​​the thermal insulation and diversion device 13 located on the periphery of the blocking and diverting component 14, and a smoke exhaust channel 19 is formed between the blocking and diverting component 14 and the inner surface of the thermal insulation and diversion device 13, which is used to guide the hot flue gas blocked and diverted by the blocking and diverting component 14 to the smoke exhaust port.

[0115] In a preferred embodiment, the blocking and diverting assembly 14 includes a blocking and diverting ring disposed between the burner 15 and the smoke exhaust port. The blocking and diverting ring is in the form of a complete ring or an incomplete ring with an open gap, and is disposed around the burner 15. The blocking and diverting ring has a plurality of gas diverting guide channels, so that the hot flue gas is blocked by the blocking and diverting ring to generate turbulence, and enters the smoke exhaust channel 19 after being diverted by the plurality of gas diverting guide channels.

[0116] In another preferred embodiment, the blocking and diverting assembly 14 includes a plurality of blocking and diverting rings of the same or different types arranged between the burner 15 and the smoke exhaust port. When there are a plurality of blocking and diverting rings, the hot flue gas is blocked and diverted by the blocking and diverting rings for multiple times, so that the process of the hot flue gas flowing to the smoke exhaust port is delayed to a greater extent and forms a turbulent effect, and the hot flue gas contacts the heat-conducting panel and / or the blocking and diverting assembly for a longer period of time to fully release and transfer heat energy, and the thermal efficiency is improved better.

[0117] In this embodiment, the first preferred blocking and diverting ring includes a strip-shaped blocking and diverting ring 14, which is in the shape of a complete ring or an incomplete ring with an open gap, and a plurality of air holes 141 are provided on the belt body of the strip-shaped blocking and diverting ring 14, so that when the hot flue gas collides with the belt body of the strip-shaped blocking and diverting ring, it is blocked by the belt body of the strip-shaped blocking and diverting ring to generate turbulence, and after being diverted by the plurality of air holes 141, it enters the smoke exhaust channel 19 and delivers the hot flue gas to the hot flue gas discharge channel 21 through the smoke exhaust port.

[0118] In this embodiment, the second preferred blocking and diverting ring includes a fin-shaped blocking and diverting ring 6, which includes a plurality of fins 61. The fins 61 are distributed in a circular direction, and the gaps between the fins 61 form gas diversion guide channels 62, so that when the hot flue gas collides with the fins, it is blocked by the fins 61 to generate turbulence, and enters the hot flue gas discharge channel after being diverted by the plurality of gas diversion guide channels 62.

[0119] Preferably, the surface of the fin 61 has protrusions and grooves.

[0120] Preferably, the fin 61 has a multi-section bending structure.

[0121] In this embodiment, the fin-shaped blocking and diverting ring 6 further includes one or more connecting parts 63 for connecting the fins 61. Preferably, the connecting part 63 includes an annular connecting part 63, which is a complete annular shape or an incomplete annular shape with an open gap, and each fin 61 is respectively connected to the annular connecting part 63. That is, for the annular connecting part 63, a plurality of fins 61 are arranged on the annular connecting part 63 along an annular interval, and finally form the fin-shaped blocking and diverting ring 6.

[0122] In this embodiment, the third preferred blocking and diverting ring includes a strip-shaped blocking and diverting ring 29, which includes an annular corrugation 291 belt. The gaps 292 between the corrugations 291 of the annular corrugation 291 belt form a gas diversion guide channel, so that when the hot flue gas collides with the belt body of the annular corrugation 291 belt, it is blocked by the belt body of the annular corrugation 291 belt to generate turbulence, and enters the hot flue gas discharge channel after being diverted through multiple gas diversion guide channels.

[0123] The blocking and diverting assembly 14 includes a blocking and diverting ring arranged between the burner 15 and the smoke exhaust port, which means that the number of the blocking and diverting assembly 14 is one, and the type can be one of the above three preferred blocking and diverting rings.

[0124] Among them, the blocking and diverting assembly 14 includes multiple blocking and diverting rings of the same type arranged between the burner 15 and the smoke exhaust port, which means that the number of blocking and diverting rings is multiple, for example, with the burner 15 as the center, they are arranged in sequence from the inside to the outside, and the type of blocking and diverting ring is one, for example, the type can be one of the three preferred blocking and diverting rings of the above-mentioned strip-shaped blocking and diverting ring 14, the strip-shaped blocking and diverting ring 29 and the fin-shaped blocking and diverting ring 6, or one of the other types.

[0125] Among them, the blocking and diverting assembly 14 includes a plurality of blocking and diverting rings of different types arranged between the burner 15 and the smoke exhaust port, which means that the number of blocking and diverting rings is multiple, for example, with the burner 15 as the center, they are arranged in sequence from the inside to the outside, and the types of blocking and diverting rings are multiple, for example, the types can be two or three of the three preferred blocking and diverting rings of the above-mentioned strip-shaped blocking and diverting ring 14, strip-shaped blocking and diverting ring 29 and fin-shaped blocking and diverting ring 6, or multiple of other types.

[0126] Preferably, the blocking and diverting ring is configured to have a heat-conducting property. Taking the fin-shaped blocking and diverting ring 6 as an example, the fin 61 includes a heat-conducting fin. Preferably, the connecting portion 63 includes a heat-conducting connecting portion 63. When the fin 61 and the connecting portion 63 are made of a heat-conducting material, such as a metal structure, the fin-shaped blocking and diverting ring 6 absorbs the heat in the hot flue gas and heats up to form a heat radiator to radiate infrared heat energy, thereby increasing the infrared heat radiation intensity above the heat-conducting panel 2.

[0127] Preferably, the top of the blocking diverter ring is butted against the heat conducting panel 2. Therefore, the heat absorbed by the blocking diverter ring is more effectively transferred to the heat conducting panel, thereby increasing the infrared heat radiation intensity above the heat conducting panel 2.

[0128] Preferably, a spring for pressing the top of the blocking and diverting ring against the heat conducting panel 2 is provided in the heat insulating and diverting device 13 .

[0129] Preferably, a spring is provided between the heat insulating and flow guiding device 13 and the stove body 1 to press the heat insulating and flow guiding device 13 and the heat conducting panel 2 tightly.

[0130] Specifically, the exhaust system includes a fan and a mixing channel. The air inlet end of the mixing channel is connected to the hot smoke exhaust channel and the oil smoke exhaust channel respectively. The fan is connected to the mixing channel so that negative pressure is formed at the oil smoke intake port and the exhaust port at the same time when the fan is started.

[0131] An exhaust port 18 for discharging hot flue gas in the combustion chamber is provided on the heat-insulating guide device 13. The exhaust port 18 is connected to an oil fume exhaust channel 22 through a hot flue gas discharge channel 21. The fan 4 is arranged on the oil fume exhaust channel 22 to form a negative pressure at the oil fume intake ports 11 and 20 to inhale oil fume 24, and also to form a negative pressure at the exhaust port 18 to inhale hot flue gas 23, so that the hot flue gas 23 flows upward into the oil fume exhaust channel 22.

[0132] like Figure 4 As shown, in this embodiment, a strip-shaped oil fume filter 312 is arranged in the oil fume suction box, and the strip-shaped oil fume filter 312 is arranged in the oil fume suction box and covers the air inlet channel 316 of the oil fume suction box. The strip-shaped oil fume filter 312 is configured to be manually driven by a user or automatically moved from one side to the other side in the air inlet channel 316 by a driving mechanism, so that the used part of the strip-shaped oil fume filter 312 leaves the air inlet channel 316 and the unused part moves to the air inlet channel 316 synchronously. Specifically, the oil fume suction box includes a box body 314 and a box cover 311, and a plurality of vents are arranged on the box cover 311 to form an oil fume suction port 11. The oil fume suction box has a plurality of separated cavities, and the main cavity in the middle forms the air inlet channel 316.

[0133] Preferably, the unused portion of the belt-shaped oil fume filter device 312 is in the form of a winding body or a stacked body;

[0134] Further preferably, a receiving shaft 315 is provided on the oil fume absorbing box, and the used part of the belt-shaped oil fume filter device 312 leaving the air inlet channel 316 is wound on the receiving shaft 315;

[0135] More preferably, it further comprises a manual rotating mechanism for driving the receiving shaft 315 to rotate. More preferably, the manual rotating mechanism comprises a handle, one end of which is connected to the receiving shaft 315 and the other end of which is exposed to the range hood box.

[0136] Further preferably, the driving mechanism includes a driving motor, and the driving motor is directly connected to the receiving shaft 315 or connected to the receiving shaft 315 through a transmission mechanism;

[0137] Further preferably, the surface of the receiving shaft 315 in contact with the belt-shaped oil fume filtering device 312 is provided with a plurality of protrusions.

[0138] Preferably, a honeycomb-type porous filter 313 is provided in the air inlet cavity 316 of the oil fume suction box, and the honeycomb-type porous filter 313 is provided at the lower side of the belt-shaped oil fume filtering device 312 .

[0139] In this embodiment, the strip-shaped oil fume filter device 312 is configured to be manually or automatically moved from one side to the other side in the air inlet cavity 316, so that the used part of the strip-shaped oil fume filter device 312 leaves the air inlet cavity 316 and the unused part moves to the air inlet cavity 316 synchronously. Therefore, after the strip-shaped oil fume filter device 312 in the air inlet cavity 316 is used for a period of time, the oil fume filtering ability decreases due to the oil fume attached thereto. At this time, the user can move the strip-shaped oil fume filter device 312, so that the used part of the strip-shaped oil fume filter device 312 leaves the air inlet cavity 316 and the unused part moves to the air inlet cavity 316 synchronously. The unused part can continue to play the role of oil fume filtering, so that the oil fume suction box can maintain a high oil fume filtering ability for a long time, and thus has a significant improvement compared with the prior art.

[0140] In this embodiment, a control system 6 is further included, which is used to control the start and stop and / or operating parameters of the burner 15 and the fan 4. Preferably, the control system 6 includes:

[0141] The user instruction acquisition unit is preferably one or more of a button type, a knob type, a touch type, and a voice type;

[0142] The main control unit is used to receive and analyze user instructions and issue corresponding execution instructions to the burner 15 and the fan 4;

[0143] Preferably, it also includes a display unit for displaying user instructions and / or the status of the burner 15 and the fan 4;

[0144] Preferably, it also includes an Internet of Things module for information interaction with the main control unit and / or household appliances other than the gas cooker;

[0145] Preferably, a face recognition system and / or a fingerprint recognition system is also included to verify whether the user's identity is qualified, and if qualified, the user can operate the gas cooker. Preferably, a display screen 5 is also included, and further preferably, the display screen 5 includes an interconnected screen shifting and split screen display system.

[0146] Preferably, a sensor is further included to detect whether there is a pot on the heat-conducting panel 2 and / or whether the pot on the heat-conducting panel 2 is in a dry-burning state, and to feed back a detection signal to the control system. Preferably, an electric valve is further included to open or close the gas inlet pipe of the burner according to the instruction sent by the control system.

[0147] Preferably, the sensor includes a temperature sensor for detecting the temperature of the heat-conducting panel 2, and the control system identifies whether there is a pot on the heat-conducting panel 2 and / or whether the pot on the heat-conducting panel 2 is in a dry-burning state according to the temperature of the heat-conducting panel 2.

[0148] Preferably, it also includes an electronic ignition system, a gas control regulating valve and a flameout protection system.

[0149] Example 2

[0150] This embodiment provides a stove with a fume exhaust function. Compared with Embodiment 1, the main differences of this embodiment are:

[0151] like Fig.12 , Fig.13 As shown, the oil fume suction device includes one or more oil fume suction boxes distributed on the stove body, and the oil fume suction boxes are detachably connected to the oil fume exhaust channel.

[0152] As a preferred composition structure of an oil fume extraction box, the oil fume extraction box includes one or more layers of oil fume intercepting mesh panels 317, one or more layers of disposable oil fume purification and separation devices 318, and one or more layers of support mesh panels 319, which are stacked in sequence and detachably connected together. The oil fume intercepting mesh panels 317 form an oil fume suction port 11 to inhale an airflow containing oil fume, and the airflow purified and separated by the disposable oil fume purification and separation device 318 flows into the oil fume exhaust channel through the support mesh panel 319.

[0153] Preferably, the disposable oil fume purification separation device 318 is a sheet structure. This embodiment provides some preferred material compositions of the disposable oil fume purification separation device. In the first preferred material composition, its sheet filter structure is made of organic material or inorganic material or a mixture of organic and inorganic materials. In the second preferred material composition, its sheet filter structure is made of non-woven fiber paper net or non-woven fiber cloth net. In the third preferred material composition, its sheet filter structure is made of non-woven metal fiber adhesive or non-woven metal fiber net. In the fourth preferred material composition, its sheet filter structure is made of woven paper net or woven cloth net.

[0154] The other features of this embodiment are the same as those of Embodiment 1 and will not be described in detail.

[0155] Example 3

[0156] This embodiment provides a stove with a fume exhaust function. Compared with Embodiment 1, the main differences of this embodiment are:

[0157] like Fig.14 , Fig.15 As shown, in this embodiment, the oil fume suction device includes one or more oil fume suction arms 31, the upper part of the oil fume suction arm 31 is provided with an oil fume suction port, the lower part of the oil fume suction arm 31 is provided with an air outlet, and the air outlet of the oil fume suction arm 31 is connected to the oil fume exhaust channel;

[0158] In this embodiment, a receiving device 90 corresponding to the oil fume extraction arm 31 is further included, and the air outlet of the oil fume extraction arm 31 is movably docked or detachably fixedly docked with the receiving device 90, and the receiving device 90 is connected to the oil fume exhaust channel. The receiving device 90 is configured to have a wind passing characteristic, for example, the receiving device 90 has a plurality of vents, for example, the receiving device 90 is formed by one or more layers of the support plate net.

[0159] In this embodiment, a disposable oil fume purification and separation device 91 is also included. The disposable oil fume purification and separation device 91 is one layer or multiple layers. The disposable oil fume purification and separation device 91 is detachably arranged between the air outlet of the oil fume suction arm 31 and the receiving device 90.

[0160] In this embodiment, the connection between the oil fume extraction arm 31 and the receiving device 90 is arc-shaped. Specifically, the connection between the oil fume extraction arm 31 is an outwardly convex arc-shaped surface, and the connection between the receiving device 90 is an inwardly concave arc-shaped surface. The two cooperate with each other to enable the oil fume extraction arm 31 to rotate on the receiving device 90. Therefore, the user can conveniently adjust the angle of the oil fume extraction arm 31 during use, thereby more effectively inhaling oil fume.

[0161] In this embodiment, a magnetic component, such as a magnet, is provided at the connection between the oil fume extraction arm 31 and the receiving device 90 for positioning the oil fume extraction arm 31 .

[0162] The other features of this embodiment are the same as those of Embodiment 1 and will not be described in detail.

[0163] Example 4

[0164] This embodiment provides a stove with a fume exhaust function. Compared with Embodiment 1, the main differences of this embodiment are:

[0165] like Fig.16 As shown, in this embodiment, the belt-shaped oil fume filtering device 320 is annular, and a driving pulley 321 and a driven pulley 322 are provided in the oil fume suction box 31. The two ends of the belt-shaped oil fume filtering device 320 are respectively mounted on the driving pulley 321 and the driven pulley 322, and also include a driving mechanism for driving the driving pulley 321 to rotate; preferably, the driving mechanism includes a driving motor, and the driving motor is directly connected to the driving pulley 321 or connected to the driving pulley 321 through a transmission mechanism.

[0166] In this embodiment, a cleaning device 324, such as a water tank, is further included, which is used to clean the belt-shaped oil fume filter device 320. Preferably, a water changing pipe 325 is connected to the water tank.

[0167] Preferably, the surfaces of the driving pulley 321 and / or the driven pulley 322 that are in contact with the belt-shaped oil fume filtering device 320 are provided with a plurality of protrusions.

[0168] Preferably, a guide pulley 323 and a guide pulley 326 are further provided to guide at least a portion of the belt-shaped oil fume filtering device 320 into the water tank.

[0169] Based on this embodiment, on the one hand, due to the attachment of oil smoke, the oil smoke filtering capacity is reduced. At this time, the user can move the strip oil smoke filtering device 320, so that the used part of the strip oil smoke filtering device 320 leaves the air inlet cavity, and the unused part is synchronously moved to the air inlet cavity. The unused part can continue to play the role of oil smoke filtering, so that the oil smoke suction box can maintain a high oil smoke filtering capacity for a long time, thus having a significant improvement compared with the prior art. Furthermore, the strip oil smoke filtering device 320 can be recycled by cleaning, saving material costs and reducing disassembly and replacement.

[0170] The other features of this embodiment are the same as those of Embodiment 1 and will not be described in detail.

[0171] Example 5

[0172] This embodiment provides a stove with a fume exhaust function. Compared with Embodiment 1, the main differences of this embodiment are:

[0173] like Fig.17 As shown, in this embodiment, the oil fume suction device includes a vertical arm 3, which extends upward relative to the stove body. The vertical arm 3 is provided with an oil fume suction port above the heat conduction panel. The oil fume exhaust channel extends from the stove body to the vertical arm 3, and the oil fume exhaust channel is connected to the oil fume suction port.

[0174] In this embodiment, an oil fume filter assembly is provided in the area of ​​the oil fume exhaust passage located on the vertical arm 3 .

[0175] In a preferred embodiment, the oil fume filter assembly includes a disposable oil fume filter consumable material; further preferably, it includes a sheet-shaped disposable oil fume filter consumable material;

[0176] In a preferred embodiment, the oil fume filter assembly includes a belt-shaped moving filter device; further preferably, the belt-shaped moving filter device is a winding body or a stacked body;

[0177] In a preferred embodiment, the oil fume filter assembly includes an oil fume filter plate; further preferably, the oil fume filter plate is detachably disposed in the oil fume exhaust passage.

[0178] In this embodiment, the vertical arm 3 is arranged on the stove body and extends vertically upward relative to the heat-conducting panel. The oil fume exhaust channel extends downward from the vertical arm 3 to the stove body and is connected to the hot fume exhaust channel. The oil fume suction port is arranged at the lower part of the vertical arm 3. The upper part of the vertical arm 3 protrudes forward relative to the lower part of the vertical arm 3. The vertical arm 3 is provided with side arms 8 and side walls 9 on both sides. The side arms extend forward relative to the vertical arm 3 and extend upward relative to the heat-conducting panel. Based on the above design, a smoke collecting area 10 is formed near the oil fume suction ports 11 and 21 to promote the suction of oil fume into the oil fume suction ports 11 and 21.

[0179] In this embodiment, one or more of an oven 25, a steamer, and a seasoning storage system are disposed on the upper portion of the vertical arm 3.

[0180] Preferably, the seasoning storage system includes an automatic feeding system; preferably, the seasoning storage system includes a manually controlled seasoning box; preferably, the seasoning storage system includes a press-type seasoning box; preferably, the seasoning storage system includes a metering-type seasoning box.

[0181] In this embodiment, an oxygen supply channel 7 is formed in one side arm 9, one end of the oxygen supply channel 7 is connected to the outside atmosphere, and the other end is connected to the interior of the stove body, so as to supply fresh air to the burner. A detachable oil collecting box 12 is arranged on the other side arm, and the oil collecting box 12 passes through the side arm and extends into the vertical arm 3, and is used to collect oil stains in the vertical arm 3.

[0182] An adjusting knob 44 is provided on a side arm 9, and a gas adjusting control valve body 17 is provided on the stove body 1. The adjusting knob 44 is connected to the gas adjusting control valve body 17 by a transmission mechanism. The gas adjusting control valve body 17 is connected to the burner 15 through a gas delivery pipeline for controlling the firepower of the burner 15.

[0183] The other features of this embodiment are the same as those of Embodiment 1 and will not be described in detail.

[0184] Example 6

[0185] This embodiment provides a stove with a fume exhaust function. Compared with Embodiment 5, the main differences of this embodiment are:

[0186] like Fig.18 As shown, the lower part of the stove body 1 is provided with one or more of an oven 25, a steamer, and a seasoning storage system.

[0187] The other features of this embodiment are the same as those of Embodiment 5 and will not be described in detail.

[0188] Example 7

[0189] This embodiment provides a cooking appliance with a fume exhaust function. Compared with Embodiment 2, Embodiment 3, Embodiment 4, and Embodiment 5, the main differences of this embodiment are:

[0190] In this embodiment, the oil fume extraction device includes a combination of the oil fume extraction devices in Embodiment 2, Embodiment 3, Embodiment 4, and Embodiment 5, that is, there are multiple oil fume extraction devices of multiple types.

[0191] For example, Fig.19 As shown, the rear side of the heat-conducting panel is at least one oil fume suction arm 31, and the left side or right side of the heat-conducting panel is respectively provided with at least one oil fume suction box 31. In addition, a plurality of oil fume suction devices are respectively connected to the oil fume exhaust channel.

[0192] The other features of this embodiment are the same as those of Embodiment 2, Embodiment 3, Embodiment 4 or Embodiment 5 and will not be described in detail.

[0193] Example 8

[0194] This embodiment provides a stove with a fume exhaust function. Compared with Embodiment 1, the main differences of this embodiment are:

[0195] like Fig. 20 As shown, a heat storage cavity 28 is arranged on the hot flue gas discharge channel, and the top of the heat storage cavity 28 also includes a heat conduction panel 2 to output the heat energy in the heat storage cavity 28.

[0196] Preferably, a blocking and diverting assembly is also provided in the heat storage cavity 28, and there are one or more heat storage cavities 28.

[0197] The other features of this embodiment are the same as those of Embodiment 1 and will not be described in detail.

[0198] Example 9

[0199] This embodiment provides a gas cooker. Compared with Embodiment 1, this embodiment is different in that:

[0200] One or more stoves selected from the group consisting of an electric stove, an open gas stove 30 and an electric hybrid stove are also arranged beside the closed gas stove.

[0201] For example, Fig.21 As shown, an open gas stove 30 is also arranged beside the closed gas stove.

[0202] The other features of this embodiment are the same as those of Embodiment 1 and will not be described in detail.

[0203] Example 10

[0204] This embodiment provides a gas cooker. Compared with Embodiment 1, this embodiment is different in that:

[0205] In this embodiment, a transmission mechanism for remotely operating the gas regulating control valve body 17 is also included.

[0206] Preferably, if Fig. 22 As shown, the transmission mechanism includes a flexible shaft transmission mechanism, the flexible shaft transmission mechanism includes an adjusting knob 44 and a flexible shaft, the adjusting knob 44 is connected through the flexible shaft transmission, and further preferably, a return spring 43 is arranged between the adjusting knob and the flexible shaft. Further preferably, the rotating shaft includes a flexible shaft body 41 and a shaft sleeve 42.

[0207] The other features of this embodiment are the same as those of Embodiment 1 and will not be described in detail.

[0208] Embodiment 11

[0209] This embodiment provides a gas cooker. Compared with Embodiment 2, this embodiment is different in that:

[0210] like Fig.23 As shown, the thickness of the upper portion of the stove body 1 is greater than the thickness of the lower portion of the stove body 1. The closed gas stove and the oil fume suction device are installed on the upper portion of the stove body 1, and the fan is vertically arranged on the lower portion of the stove body 1.

[0211] The other features of this embodiment are the same as those of Embodiment 2 and will not be described in detail.

[0212] Example 12

[0213] This embodiment provides a gas cooker. Compared with Embodiment 2, this embodiment is different in that:

[0214] like Fig.24 As shown, the lower part of the stove body 1 is provided with one or more of an oven 25, a steamer, and a seasoning storage system.

[0215] The other features of this embodiment are the same as those of Embodiment 2 and will not be described in detail.

[0216] Embodiment 13

[0217] This embodiment provides a gas cooker. Compared with Embodiment 5, this embodiment is different in that:

[0218] The oil fume inlet 11 is arranged alone on the bottom surface of the upper part of the vertical arm 3, or the oil fume inlet 11 is arranged on the vertical surface of the lower part of the vertical arm 3 and the bottom surface of the upper part of the vertical arm 3 at the same time. Fig.25 As shown, the oil fume suction port 11 is provided on both the lower vertical surface of the vertical arm 2 and the upper bottom surface of the vertical arm 2 , that is, the lower vertical surface of the vertical arm 2 is provided with the oil fume suction port 11 , and the upper bottom surface of the vertical arm 3 is also provided with the oil fume suction port 11 .

[0219] The other features of this embodiment are the same as those of Embodiment 1 and will not be described in detail.

[0220] Those skilled in the art will appreciate that the accompanying drawings are merely schematic diagrams of a preferred implementation scenario, and the modules or processes in the accompanying drawings are not necessarily required for implementing the present invention.

[0221] Those skilled in the art will appreciate that the modules in the device in the implementation scenario can be distributed in the device in the implementation scenario according to the implementation scenario description, or can be changed accordingly and located in one or more devices different from the implementation scenario. The modules in the above implementation scenario can be combined into one module, or can be further split into multiple sub-modules.

[0222] The above serial numbers of the present invention are only for description and do not represent the advantages or disadvantages of the implementation scenarios.

[0223] Disclosed above are only several specific implementation scenarios of the present invention, but the present invention is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A stove with oil fume exhaust function, characterized in that: include: A stove body, a fume extraction device, a closed gas stove and an exhaust system, wherein the closed gas stove is installed on the stove body, and comprises a heat conduction panel, a burner and a heat insulation and flow guide device, wherein the heat insulation and flow guide device is arranged on the periphery of the burner, the heat conduction panel is arranged on the top of the heat insulation and flow guide device and forms a combustion chamber with the heat insulation and flow guide device, and the combustion surface layer of the burner is located in the combustion chamber; The oil fume suction device is arranged on the stove body, and is provided with an oil fume suction port for sucking oil fume formed during the cooking process of food, and the stove body is provided with an oil fume exhaust channel, and the oil fume exhaust channel is connected to the oil fume suction port, and the heat insulation and flow guiding device is provided with an exhaust port for exhausting hot smoke in the combustion chamber, and the stove body is also provided with a hot smoke exhaust channel, and the exhaust port is connected to the hot smoke exhaust channel; The exhaust system is arranged on the stove body, and is connected to both the oil fume exhaust passage and the hot smoke exhaust passage, so that when the exhaust system is started, negative pressure is formed at the oil fume intake port to inhale oil fume, and negative pressure is also formed at the exhaust port to inhale hot smoke in the combustion chamber; The exhaust system includes a fan and a mixing channel, the air inlet end of the mixing channel is connected to the hot smoke exhaust channel and the oil smoke exhaust channel respectively, and the fan is connected to the mixing channel, so that when the fan is started, negative pressure is formed at the oil smoke intake port and the exhaust port at the same time; The oil fume suction device comprises one or more oil fume suction arms, the upper part of the oil fume suction arm is provided with an oil fume suction port, the lower part of the oil fume suction arm is provided with an air outlet, and the air outlet of the oil fume suction arm is connected to the oil fume exhaust channel; The cooker further comprises a receiving device corresponding to the oil fume suction arm one by one, the air outlet of the oil fume suction arm is movably docked or detachably fixedly docked with the receiving device, the receiving device is connected to the oil fume exhaust channel, and the receiving device is configured to have a passing air characteristic; The closed gas stove further comprises a blocking and diverting assembly, which is arranged in the combustion chamber and located at the periphery of the combustion surface layer of the burner, and is used to block and divert the hot flue gas diffused to the blocking and diverting assembly; the smoke exhaust port is located in the area of ​​the heat insulation guide device located at the periphery of the blocking and diverting assembly, and a smoke exhaust channel is formed between the blocking and diverting assembly and the inner surface of the heat insulation guide device, and is used to guide the hot flue gas blocked and diverted by the blocking and diverting assembly to the smoke exhaust port; The blocking and diverting assembly includes a blocking and diverting ring arranged between the burner and the smoke exhaust port, or includes a plurality of blocking and diverting rings of the same or different types arranged between the burner and the smoke exhaust port; The blocking and diverting ring is arranged around the burner and has a plurality of gas diversion guide channels, so that the hot flue gas is blocked by the blocking and diverting ring to generate turbulence, and enters the exhaust channel after being diverted by the plurality of gas diversion guide channels.

2. The cooker according to claim 1, characterized in that: It also includes a disposable oil fume purification and separation device, which is one layer or multiple layers, and is detachably arranged between the air outlet of the oil fume suction arm and the receiving device.

3. The cooker according to claim 2, characterized in that: The connection between the oil fume extraction arm and the receiving device is arc-shaped, so that the oil fume extraction arm can rotate on the receiving device; a magnetic component is provided at the connection between the oil fume extraction arm and the receiving device, so as to position the oil fume extraction arm.

4. The cooker according to claim 1, characterized in that: The oil fume suction device comprises one or more oil fume suction boxes distributed on the stove body, and the oil fume suction boxes are detachably connected to the oil fume exhaust channel.

5. The cooker according to claim 4, characterized in that: The oil fume extraction box includes one or more layers of oil fume intercepting mesh plates, one or more layers of disposable oil fume purification and separation devices, and one or more layers of support plate nets, which are stacked in sequence and detachably connected together. The oil fume intercepting mesh plates form an airflow containing oil fume to be sucked in by the oil fume suction port, and the airflow purified and separated by the disposable oil fume purification and separation device flows into the oil fume exhaust channel through the support plate net.

6. The cooker according to claim 4, characterized in that: A belt-shaped oil fume filter device is arranged in the oil fume absorption box, and the belt-shaped oil fume filter device is arranged in the oil fume absorption box and covers the air inlet cavity of the oil fume absorption box. The belt-shaped oil fume filter device is configured to be manually driven by a user or automatically moved from one side to the other side in the air inlet cavity by a driving mechanism, so that the used part of the belt-shaped oil fume filter device leaves the air inlet cavity and the unused part moves to the air inlet cavity synchronously.

7. The cooker according to claim 6, characterized in that: The unused part of the belt-shaped oil fume filtering device is in the form of a winding body or a stacked body.

8. The cooker according to claim 7, characterized in that: The oil fume suction box is provided with a receiving shaft, and the used part of the belt-shaped oil fume filtering device leaving the air inlet cavity is wound on the receiving shaft.

9. The cooker according to claim 8, characterized in that: It also includes a manual rotating mechanism for driving the receiving shaft to rotate.

10. The cooker according to claim 9, characterized in that: The manual rotating mechanism comprises a handle, one end of which is connected to the material receiving shaft, and the other end of which is exposed from the range hood box.

11. The cooker according to claim 8, characterized in that: The driving mechanism comprises a driving motor, and the driving motor is directly connected to the receiving shaft or connected to the receiving shaft through a transmission mechanism.

12. The cooker according to claim 8, characterized in that: The surface of the receiving shaft in contact with the belt-shaped oil fume filtering device is provided with a plurality of protrusions.

13. The cooker according to claim 6, characterized in that: A honeycomb-type porous filter is arranged in the air inlet cavity of the oil fume suction box, and the honeycomb-type porous filter is arranged at the lower side of the belt-shaped oil fume filtering device.

14. The cooker according to claim 6, characterized in that: The belt-shaped oil fume filtering device is annular, and a driving pulley and a driven pulley are arranged in the oil fume suction box. The two ends of the belt-shaped oil fume filtering device are respectively sleeved on the driving pulley and the driven pulley, and also include a driving mechanism for driving the driving pulley to rotate.

15. The cooker according to claim 14, characterized in that: The driving mechanism comprises a driving motor, and the driving motor is directly connected to the driving pulley or connected to the driving pulley through a transmission mechanism.

16. The cooker according to claim 14, characterized in that: It also includes a cleaning device for cleaning the belt-shaped oil fume filtering device.

17. The cooker according to claim 14, characterized in that: The surface of the driving pulley and / or the driven pulley in contact with the belt-shaped oil fume filtering device is provided with a plurality of protrusions.

18. The cooker according to claim 1, characterized in that: The oil fume suction device comprises a vertical arm, which extends upward relative to the stove body. The vertical arm is provided with an oil fume suction port above the heat conduction panel. The oil fume exhaust channel extends from the stove body to the vertical arm, and the oil fume exhaust channel is connected to the oil fume suction port.

19. The cooker according to claim 18, characterized in that: An oil fume filter assembly is arranged in the area of ​​the oil fume exhaust passage located on the vertical arm.

20. The cooker according to claim 19, characterized in that: The oil fume filter assembly includes disposable oil fume filter consumables.

21. The cooker according to claim 20, characterized in that: The oil fume filter assembly comprises a sheet-shaped disposable oil fume filter consumable.

22. The cooker according to claim 19, characterized in that: The oil fume filter assembly comprises a belt-shaped motion-type filter device.

23. The cooker according to claim 22, characterized in that: The belt-shaped moving filter device is in the form of a winding body or a stacked body.

24. The cooker according to claim 19, characterized in that: The oil fume filter assembly comprises an oil fume filter plate.

25. The cooker according to claim 24, characterized in that: The oil fume filter plate is detachably arranged in the oil fume exhaust passage.

26. The cooker according to claim 18, characterized in that: The vertical arm is arranged on the stove body and extends vertically upward relative to the heat-conducting panel. The oil fume exhaust passage extends downward from the vertical arm to the stove body and is connected to the hot fume exhaust passage. The upper part of the vertical arm protrudes forward relative to the lower part of the vertical arm. The oil fume suction port is arranged on the vertical surface of the lower part of the vertical arm and / or the bottom surface of the upper part of the vertical arm. Side arms are respectively arranged on both sides of the vertical arm. The side arms extend forward relative to the vertical arm and extend upward relative to the heat-conducting panel.

27. The cooker according to claim 26, characterized in that: An oven, a steamer, or a seasoning storage system is disposed on the upper portion of the vertical arm; or an oven, a steamer, or a seasoning storage system is disposed on the lower space of the stove body.

28. The cooker according to claim 27, characterized in that: The seasoning storage system comprises an automatic feeding system.

29. The cooker according to claim 27, characterized in that: The seasoning storage system comprises a hand-controlled seasoning box.

30. The cooker according to claim 27, characterized in that: The seasoning storage system comprises a press-type seasoning box.

31. The cooker according to claim 27, characterized in that: The seasoning storage system comprises a metering seasoning box.

32. The cooker according to claim 26, characterized in that: An oxygen supply channel is formed in one of the side arms, one end of the oxygen supply channel is connected to the outside atmosphere, and the other end is connected to the interior of the stove body, so as to supply fresh air to the burner.

33. The cooker according to claim 32, characterized in that: A detachable oil collecting box is arranged on one of the side arms. The oil collecting box passes through the side arm and extends into the vertical arm to collect oil stains in the vertical arm.

34. The cooker according to claim 26, characterized in that: An adjusting knob is arranged on one of the side arms, a gas adjusting control valve body is arranged on the stove body, the adjusting knob is connected to the adjusting knob by a transmission mechanism, and the gas adjusting control valve body is connected to the burner through a gas delivery pipeline for controlling the firepower of the burner.

35. The cooker according to claim 34, characterized in that: The transmission mechanism comprises a flexible shaft transmission mechanism, and the flexible shaft transmission mechanism comprises an adjusting knob and a flexible shaft, and the adjusting knob is transmission-connected via the flexible shaft.

36. The cooker according to claim 35, characterized in that: A return spring is arranged between the adjusting knob and the flexible shaft.

37. The cooker according to claim 35, characterized in that: The flexible shaft comprises a flexible shaft body and a shaft sleeve.

38. The cooker according to claim 1, characterized in that: The heat insulation and flow guiding device includes a bottom wall and an annular side wall. The bottom wall is arranged at the periphery of the burner and faces the heat conduction panel, so that the hot flue gas generated by the combustion of the burner diffuses to the periphery from the gap formed between the heat conduction panel and the bottom wall. The top of the annular side wall is connected to the heat conduction panel, and the bottom of the annular side wall is connected to the bottom wall.

39. The cooker according to claim 38, characterized in that: The bottom wall and the annular side wall are an integrally formed structure.

40. The cooker according to claim 1, characterized in that: The barrier diverter ring is configured to have thermal conductive properties.

41. The cooker according to claim 1, characterized in that: The top of the blocking and diverting ring is butted against the heat conducting panel.

42. The cooker according to claim 1, characterized in that: A spring for pressing the top of the blocking and diverting ring against the heat conducting panel is arranged in the heat insulating and diverting device.

43. The cooker according to claim 1, characterized in that: A spring is provided between the heat insulating and flow guiding device and the cooker body, and is used to press the heat insulating and flow guiding device and the heat conducting panel tightly.

44. The cooker according to claim 1, characterized in that: The blocking and diverting ring includes a fin-shaped blocking and diverting ring, which includes a plurality of fins, each of which is distributed in a circular direction, and the gaps between the fins respectively form the gas diversion guide channels, so that when the hot flue gas collides with the fins, it is blocked by the fins to generate turbulence, and enters the exhaust channel after being diverted by the plurality of gas diversion guide channels.

45. The cooker according to claim 44, characterized in that: The fins include heat-conducting fins.

46. ​​The cooker according to claim 44, characterized in that: The fin-shaped blocking and diverting ring further comprises one or more connecting parts for connecting the fins.

47. The cooker according to claim 46, characterized in that: The connecting portion includes an annular connecting portion, and each of the fins is respectively connected to the annular connecting portion.

48. The cooker according to claim 46, characterized in that: The connection portion includes a thermally conductive connection portion.

49. The cooker according to claim 34, characterized in that: The blocking and diverting ring comprises a strip-shaped blocking and diverting ring, and a plurality of air holes are provided on the strip body of the blocking and diverting ring, so that when the hot flue gas collides with the strip body of the blocking and diverting ring, the hot flue gas is blocked by the strip body of the blocking and diverting ring to generate turbulence, and enters the smoke exhaust channel after being diverted through the plurality of air holes.

50. The cooker according to claim 34, characterized in that: The blocking and diverting ring includes a belt-shaped blocking and diverting ring, and the belt-shaped blocking and diverting ring includes an annular corrugated belt. The gaps between the corrugations of the annular corrugated belt form the gas diversion guide channel, so that when the hot flue gas collides with the belt body of the annular corrugated belt, it is blocked by the belt body of the annular corrugated belt to generate turbulence, and enters the smoke exhaust channel after being diverted through multiple gas diversion guide channels.

51. The cooker according to claim 1, characterized in that: A heat storage cavity is arranged on the hot flue gas discharge channel, and the top of the heat storage cavity also includes a heat conduction panel to output the heat energy in the heat storage cavity.

52. The cooker according to claim 51, characterized in that: The heat storage cavity is also provided with a blocking and diverting component.

53. The cooker according to claim 51, characterized in that: The number of the heat storage chambers is one or more.

54. The cooker according to claim 1, characterized in that: One or more stoves selected from the group consisting of an electric stove, an open gas stove, and an electric hybrid stove are also arranged beside the closed gas stove.

55. The cooker according to any one of claims 1 to 54, characterized in that: It also includes a control system for controlling the start and stop and / or operating parameters of the burner and the fan.

56. The cooker according to claim 55, characterized in that: The control system comprises: User instruction acquisition unit; The main control unit is used to receive and analyze user instructions and issue corresponding execution instructions to the burner and the fan.

57. The cooker according to claim 56, characterized in that: The user instruction acquisition unit is one or more of a button type, a knob type, a touch type, and a voice type.

58. The cooker according to claim 55, characterized in that: It also includes a display unit for displaying user instructions and / or the status of the burner and the fan.

59. The cooker according to claim 56, characterized in that: It also includes an Internet of Things module for exchanging information with household appliances other than the main control unit and / or the gas cooker.

60. The cooker according to claim 55, characterized in that: It also includes a face recognition system and / or a fingerprint recognition system for verifying whether the user's identity is qualified. If the user is qualified, the user can operate the gas cooker.

61. The cooker according to claim 55, characterized in that: It also includes an interconnected mobile screen and split-screen display system.

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