Gas stove

Abstract

A gas stove, including: a stove body, a range hood, a closed stove, and an exhaust system. The closed stove is disposed in the stove body. The closed stove includes a heat conduction panel, a burner, and a thermal insulation and guide device. The thermal insulation and guide device is disposed around the burner. The heat conduction panel is disposed on the top of the thermal insulation and guide device, and a combustion chamber is formed therebetween. The range hood is disposed on the stove body. The range hood includes a fume absorption inlet for receiving oil fumes formed in the process of food cooking. The stove body includes a fume release channel. The fume release channel communicates with the fume absorption inlet. The thermal insulation and guide device includes a smoke outlet for discharging hot smoke in the combustion chamber.

What is claimed is: 
     
         1 . A gas stove, comprising:
 1) a stove body;   2) a range hood;   3) a closed stove; and   4) an exhaust system;   
       wherein:
 the closed stove is disposed in the stove body; the closed stove comprises a heat conduction panel, a burner, and a thermal insulation and guide device; the thermal insulation and guide device is disposed around the burner; the heat conduction panel is disposed on a top of the thermal insulation and guide device, and a combustion chamber is formed therebetween; a combustion layer produced by the burner is in the combustion chamber; 
 the range hood is disposed on the stove body; the range hood comprises a fume absorption inlet for receiving oil fumes formed in the process of food cooking; the stove body comprises a fume release channel; the fume release channel communicates with the fume absorption inlet; the thermal insulation and guide device comprises a smoke outlet for discharging hot smoke in the combustion chamber; the stove body further comprises a hot smoke release channel; the hot smoke release channel communicates with the smoke outlet; and 
 the exhaust system communicates with the fume release channel and the hot smoke release channel, so that, when the exhaust system operates, the oil fumes are absorbed into the fume absorption inlet and the hot smoke in the combustion chamber is absorbed into the smoke outlet. 
 
     
     
         2 . The gas stove of  claim 1 , wherein the exhaust system is disposed on the stove body; the exhaust system comprises an air blower and a mixed channel; an inlet end of the mixed channel communicates with the fume absorption inlet and the hot smoke release channel; and the air blower is connected to the mixed channel and drains out mixed gases flowing through the mixed channel. 
     
     
         3 . The gas stove of  claim 1 , wherein the range hood comprises one or more fume absorption arms; the fume absorption inlet is disposed on an upper part of the one or more fume absorption arms, and a lower part of the one or more fume absorption arms comprises an outlet end communicating with the fume release channel; the range hood further comprises one or more fume absorption boxes detachably connected to the fume release channel;
 the range hood further comprises one or more receiving devices corresponding to the one or more fume absorption arms; the outlet end of the fume absorption arms is flexibly or detachably connected to the receiving devices; the receiving devices are air permeable and are connected to the fume release channel;   the range hood further comprises a disposable fume purification and separation device; the disposable fume purification and separation device is a one-layered or multiple-layered structure, and is detachably disposed between the outlet end of the one or more fume absorption arms and the receiving devices; and   the one or more fume absorption arms comprise an arc-shaped part connected to the receiving devices, so that the one or more fume absorption arms are rotatable on the receiving devices; a magnetic part is disposed between the one or more fume absorption arms and the receiving devices to position the one or more fume absorption arms.   
     
     
         4 . The gas stove of  claim 1 , wherein the range hood comprises one or more fume absorption boxes detachably connected to the fume release channel; the fume absorption boxes comprise one or more layers of fume barriers, one or more layers of disposable fume purification and separation devices, and one or more layers of support meshes, which are stacked in turn and detachably connected to each other; the fume barriers form the fume absorption inlet, and airflows comprising the oil fume are absorbed into the fume absorption inlet, are purified and separated by the disposable fume purification and separation devices, pass through the support meshes into the fume release channel; or
 the range hood comprises one or more fume absorption boxes detachably connected to the fume release channel; the fume absorption boxes each comprise a belt-type fume filter; the belt-type fume filter is disposed in the fume absorption boxes and covers an air inlet chamber of the fume absorption boxes; the belt-type fume filter is movable from one end of the air inlet chamber to another manually or automatically under the drive of a driving mechanism, so that a used part of the belt-type fume filter leaves the air inlet chamber and an unused part moves synchronously to the air inlet chamber.   
     
     
         5 . The gas stove of  claim 1 , wherein the range hood comprises a vertical arm; the vertical arm extends upwards with respect to the stove body; the fume absorption inlet is disposed on the vertical arm above the stove body; the fume release channel extends from the stove body to the vertical arm, and communicates with the fume absorption inlet; the exhaust system comprises an air blower disposed on the vertical arm; the air blower is disposed in the fume release channel, so that a negative pressure is formed in the fume absorption inlet and the smoke outlet, and the oil fume and the hot smoke are absorbed into the fume release channel. 
     
     
         6 . The gas stove of  claim 5 , wherein a fume filter assembly is disposed in the fume release channel, and comprises lamellar disposable filtering material; or
 the fume filter assembly comprises a belt filter unit which is a rolling or folding structure; or   the fume filter assembly comprises a filter plate detachably disposed in the fume release channel.   
     
     
         7 . The gas stove of  claim 5 , wherein the vertical arm is disposed on the stove body and extends upwards with respect to the heat conduction panel; the fume release channel extends from the vertical arm down to the stove body and communicates with the hot smoke release channel; an upper part of the vertical arm is protruding forward with respect to a lower part of the vertical arm; the fume absorption inlet is disposed on a vertical face the lower part of the vertical arm and/or a bottom surface of the upper part of the vertical arm;
 two sides of the vertical arm are provided with side arms, respectively; the side arms extend forward with respect to the vertical arm, and upward with respect to the heat conduction panel.   
     
     
         8 . The gas stove of  claim 7 , wherein one of the side arms comprises an oxygen supply channel; one end of the oxygen supply channel communicates with atmosphere, the other end communicates with the stove body to supply fresh air to the burner; another side arm comprises a detachable oil receiving box; the oil receiving box passes through the side arm and extends into the vertical arm, to collect oil stain in the vertical arm; and
 one of the side arms comprises an adjusting knob; the stove body comprises a control valve; the adjusting knob is connected to the control valve via a transmission mechanism; the control valve is connected to the burner through a gas transmission pipeline, to control a firepower of the burner; or, the transmission mechanism comprises a flexible shaft transmission mechanism; the flexible shaft transmission mechanism comprises an adjusting knob and a flexible shaft connected to the adjusting knob in a transmission way; a reset spring is disposed between the adjusting knob and the flexible shaft; and the flexible shaft comprises a body and a shaft sleeve.   
     
     
         9 . The gas stove of  claim 1 , wherein the hot smoke release channel comprises a heat storage chamber; the heat conduction panel is further disposed above the heat storage chamber; one or more blocking and diversion members are disposed in the heat storage chamber; and/or
 the heat conduction panel is configured to directionally transmit heat energy to a cooker on the heat conduction panel from inside to outside; the heat conduction panel is a directional heat conduction microcrystalline plate, or the heat conduction panel comprises a directional heat conduction material, or the heat conduction panel comprises multiple layers of directional heat conduction microcrystalline plates overlapped with each other, or the heat conduction panel comprises more than one layer of directional heat conduction microcrystalline plate and metal plates overlapped with each other.   
     
     
         10 . The gas stove of  claim 1 , wherein the closed stove further comprises a blocking and diversion member; the blocking and diversion member is disposed in the combustion chamber and around the combustion layer of the burner, to block and divert the hot smoke diffusing to the blocking and diversion member; the smoke outlet is disposed on the thermal insulation and guide device around the blocking and diversion member and; a fume discharge passage is disposed between the blocking and diversion member and the thermal insulation and guide device, to guide the hot smoke blocked and diverted by the blocking and diversion member to the smoke outlet; and
 the thermal insulation and guide device comprises a bottom wall and an annular side wall; the bottom wall and the annular side wall are at least one-layered; the bottom wall is disposed outside the burner and faces the heat conduction panel, so that the hot smoke produced by the burner is diffused through a gap between the heat conduction panel and the bottom wall; a top end of the annular side wall abuts against the heat conduction panel, a bottom end of the annular side wall abuts against the bottom wall; and the bottom wall is integrated with the annular side wall.   
     
     
         11 . The gas stove of  claim 10 , wherein the blocking and diversion member comprises one or more blocking and diversion rings disposed between the burner and the smoke outlet;
 the one or more blocking and diversion rings are disposed around the burner and comprise a plurality of air guide channels; when the hot smoke is blocked by the one or more blocking and diversion rings to form a turbulence, the turbulence is diverted by the plurality of air guide channels into the fume discharge passage; and   the one or more blocking and diversion rings are thermally conductive, and a top end of the one or more blocking and diversion rings abuts against the heat conductive panel.   
     
     
         12 . The gas stove of  claim 11 , wherein the blocking and diversion ring comprises a fin-type blocking and diversion ring comprising a plurality of fins; the plurality of fins is disposed annually; gaps between every two fins form the plurality of air guide channels; when the hot smoke collides with the fins, the turbulence is formed and diverted by the plurality of air guide channels into the fume discharge passage; the fins are thermally conductive; the fin-type blocking and diversion ring further comprises one or more connection parts for connecting the plurality of fins; the connection parts are annular; the plurality of fins is connected to the connection parts; the connection parts are thermally conductive; or
 the blocking and diversion ring comprises a belt-type blocking and diversion ring; the belt-type blocking and diversion ring comprises a plurality of through holes; when the hot smoke collides with a body of the belt-type blocking and diversion ring, a turbulence is formed and diverted by the plurality of through holes into the fume discharge passage; or   the blocking and diversion ring comprises a belt-type blocking and diversion ring; the belt-type blocking and diversion ring comprises an annular corrugated belt; gaps between ripples of the annular corrugated belt form the air guide channels; when the hot smoke collides with a body of the annular corrugated belt, a turbulence is formed and diverted by the air guide channels into the fume discharge passage.   
     
     
         13 . The gas stove of  claim 10 , wherein the bottom wall and/or the annular side wall comprise thermal insulation material; or
 the bottom wall and/or the annular side wall comprise at least one vacuum layer; or   the bottom wall is a mixed structure comprising thermal insulation material and a vacuum layer; or   the annular side wall is a mixed structure comprising thermal insulation material and a vacuum layer; or   the bottom wall comprises at least two of a metal layer, a vacuum layer, and a thermal insulation material layer; or   the annular side wall comprises at least two of a metal layer, a vacuum layer, and a thermal insulation material layer.   
     
     
         14 . The gas stove of  claim 2 , further comprising a control system for controlling operation of the burner, and opening, closing, and/or operation of the air blower; wherein the control system comprises:
 a command acquisition unit, controlled by a button, a knob, a touch screen, a voice, or a combination thereof; and   a main control unit for receiving and parsing a command sent by a user and sending a corresponding execution command to the burner and the air blower;   the control system further comprises a display unit for displaying a user command and/or a working state of the burner and the air blower;   the control system further comprises an Internet of Things module for interacting with household equipment except for the main control unit and/or the gas stove;   the control system further comprises a face recognition system and/or a fingerprint recognition system for verifying whether a user is qualified to operate the gas stove; and   the control system further comprises a cross-screen interconnection screen and a split-screen display system.   
     
     
         15 . A gas stove, comprising: a stove body, a heat conduction panel, a burner, a bottom wall, an annular side wall, and a blocking and diversion member;
 wherein the heat conduction panel is disposed on the burner; the bottom wall and the annular side wall are at least one-layered; the bottom wall is disposed outside the burner and faces the heat conduction panel, so that hot smoke produced by the burner is diffused through a gap between the heat conduction panel and the bottom wall; a top end of the annular side wall abuts against the heat conduction panel, a bottom end of the annular side wall abuts against the bottom wall;   the blocking and diversion member is disposed in the gap to block and divert the hot smoke diffusing to the blocking and diversion member; a smoke outlet is disposed on the bottom wall and/or the annular side wall around the blocking and diversion member; a fume discharge passage is disposed between the blocking and diversion member and the annual side wall, to guide the hot smoke blocked and diverted by the blocking and diversion member to the smoke outlet;   the stove body, the heat conduction panel, the burner, the bottom wall, and the annular side wall are disposed on the stove body; and   the bottom wall is integrated with the annular side wall.   
     
     
         16 . The gas stove of  claim 15 , further comprising a fresh air exchanger disposed in the stove body; wherein
 the fresh air exchanger comprises an air blower, an exhaust duct, an oxygen supply pipe, and a fume discharge pipe; one end of the fume discharge pipe is connected to the smoke outlet, the other end is connected to the exhaust duct; an inlet of the oxygen supply pipe is disposed outside the stove body and an outlet thereof is disposed in the stove body; the air blower is disposed between the oxygen supply pipe and the exhaust duct, to generate a pressure difference in the stove body when starting the air blower, so that fresh air is supplemented to the burner through the oxygen supply pipe, and a negative pressure is formed at the smoke outlet, and the hot smoke generated by combustion is transported to the exhaust duct via the fume discharge pipe; or   the fresh air exchanger comprises an air blower, an exhaust duct, an oxygen supply pipe, a fume discharge pipe, and a heat storage chamber; the heat conduction panel is further disposed above the heat storage chamber; an inlet of the oxygen supply pipe is disposed outside the stove body and an outlet thereof is disposed in the stove body; an air intake of the heat storage chamber is connected to the smoke outlet via a pipe or passage; an air outlet of the heat storage chamber is connected to the air blower through the fume discharge pipe, to generate a pressure difference in the stove body when starting the air blower, so that fresh air is supplemented to the burner through the oxygen supply pipe, and on the other hand, a negative pressure is formed at the smoke outlet, and the hot smoke generated by combustion is transported to the exhaust duct via the heat storage chamber.   
     
     
         17 . The gas stove of  claim 15 , wherein the blocking and diversion member comprises one or more blocking and diversion rings disposed between the burner and the smoke outlet; and
 the one or more blocking and diversion rings are disposed around the burner and comprise a plurality of air guide channels; when the hot smoke is blocked by the one or more blocking and diversion rings to form a turbulence, the turbulence is diverted by the plurality of air guide channels into the fume discharge passage.   
     
     
         18 . The gas stove of  claim 17 , wherein the blocking and diversion ring comprises a fin-type blocking and diversion ring comprising a plurality of fins; the plurality of fins is disposed annually; gaps between every two fins form the plurality of air guide channels; when the hot smoke collides with the fins, the turbulence is formed and diverted by the plurality of air guide channels into the fume discharge passage; the fins are thermally conductive; or
 the blocking and diversion ring comprises a belt-type blocking and diversion ring; the belt-type blocking and diversion ring comprises a plurality of through holes; when the hot smoke collides with a body of the belt-type blocking and diversion ring, a turbulence is formed and diverted by the plurality of through holes into the fume discharge passage; or   the blocking and diversion ring comprises a belt-type blocking and diversion ring; the belt-type blocking and diversion ring comprises an annular corrugated belt; gaps between ripples of the annular corrugated belt form the air guide channels; when the hot smoke collides with a body of the annular corrugated belt, a turbulence is formed and diverted by the air guide channels into the fume discharge passage.   
     
     
         19 . The gas stove of  claim 15 , wherein the bottom wall and/or the annular side wall comprise thermal insulation material; or
 the bottom wall and/or the annular side wall comprise at least one vacuum layer; or   the bottom wall is a mixed structure comprising thermal insulation material and a vacuum layer; or   the annular side wall is a mixed structure comprising thermal insulation material and a vacuum layer; or   the bottom wall comprises at least two of a metal layer, a vacuum layer, and a thermal insulation material layer; or   the annular side wall comprises at least two of a metal layer, a vacuum layer, and a thermal insulation material layer.   
     
     
         20 . The gas stove of  claim 16 , further comprising a control system for controlling operation of the burner, and opening, closing, and/or operation of the air blower; wherein the control system comprises:
 a command acquisition unit, controlled by a button, a knob, a touch screen, a voice, or a combination thereof; and   a main control unit for receiving and parsing a command sent by a user and sending a corresponding execution command to the burner and the air blower;   the control system further comprises a display unit for displaying a user command and/or a working state of the burner and the air blower;   the control system further comprises an Internet of Things module for interacting with household equipment except for the main control unit and/or the gas stove;   the control system further comprises a face recognition system and/or a fingerprint recognition system for verifying whether a user is qualified to operate the gas stove; and   the control system further comprises a cross-screen interconnection screen and a split-screen display system.