EP4686872A1 - Brûleur, cuisinière à gaz et appareil électrique intégré - Google Patents

Brûleur, cuisinière à gaz et appareil électrique intégré

Info

Publication number
EP4686872A1
EP4686872A1 EP25150182.1A EP25150182A EP4686872A1 EP 4686872 A1 EP4686872 A1 EP 4686872A1 EP 25150182 A EP25150182 A EP 25150182A EP 4686872 A1 EP4686872 A1 EP 4686872A1
Authority
EP
European Patent Office
Prior art keywords
flame
outlet
flame outlet
gas
burner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP25150182.1A
Other languages
German (de)
English (en)
Inventor
Jingxia SUI
Yusha RAO
Bingwei ZHANG
Zhiwei Zheng
Yichuan YANG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Handan Midea Smart Kitchen Appliance Manufacturing Co Ltd
Original Assignee
Handan Midea Smart Kitchen Appliance Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202421811820.4U external-priority patent/CN222911646U/zh
Priority claimed from CN202411026125.1A external-priority patent/CN121430021A/zh
Priority claimed from CN202411026557.2A external-priority patent/CN121430022A/zh
Priority claimed from CN202421809709.1U external-priority patent/CN222911644U/zh
Application filed by Handan Midea Smart Kitchen Appliance Manufacturing Co Ltd filed Critical Handan Midea Smart Kitchen Appliance Manufacturing Co Ltd
Publication of EP4686872A1 publication Critical patent/EP4686872A1/fr
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/06—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/06—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head
    • F23D14/065—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head with injector axis inclined to the burner head axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details
    • F23D14/48—Nozzles
    • F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14—Special features of gas burners
    • F23D2900/14062—Special features of gas burners for cooking ranges having multiple flame rings

Definitions

  • the invention relates to the technical field of gas cookers, and in particular, to a burner, a gas cooker, and an integrated electrical appliance.
  • Combustion of burners of gas cookers requires participation of primary air and secondary air.
  • the primary air is mixed with a gas through an entrainment effect.
  • the flow rate of the primary air is affected by structures and operation conditions.
  • Supplement of the secondary air depends on buoyancy and entrainment effects, which places high demands on sizes of components and parts. Therefore, there is an improvement room for thermal efficiency of the gas cooker.
  • the invention aims to solve one of the technical problems in the related art to some extent. To this end, the invention provides a burner.
  • the invention discloses a burner.
  • the burner includes a first flame outlet and a second flame outlet.
  • the first flame outlet is located farther from a center of the burner than the second flame outlet.
  • One of the first flame outlet and the second flame outlet is adapted for ejecting of a gas and blown air, and another one of the first flame outlet and the second flame outlet is adapted for ejecting of the gas and induced air.
  • one of the first flame outlet and the second flame outlet may be used for ejecting of the gas and the blown air.
  • the blown air provides sufficient oxygen to allow for full combustion of the gas ejected from the one of the first flame outlet and the second flame outlet.
  • the blown air may generate excess oxygen to assist in combustion of the gas ejected from the other one of the first flame outlet and the second flame outlet.
  • the gas ejected from the other one of the first flame outlet and the second flame outlet can also be fully burned under effects of the induced air and the excess oxygen provided by the blown air.
  • the gas ejected from the first flame outlet and the second flame outlet can be fully burned with high combustion efficiency. Therefore, it is beneficial to improvement of thermal efficiency of a gas cooker.
  • a flame generated at the other one of the first flame outlet and the second flame outlet may be adapted to perform flame stabilization on the one of the first flame outlet and the second flame outlet.
  • the burner may further include a first mixture outlet channel.
  • the first mixture outlet channel may have a tip end formed as the first flame outlet and at least one first corner located upstream of the first flame outlet.
  • the first mixture outlet channel may include a first upstream flow segment, a first midstream flow segment, and a first downstream flow segment with a tip end formed as the first flame outlet.
  • the at least one first corner may be formed at an intersection between the first upstream flow segment and the first midstream flow segment and at an intersection between the first midstream flow segment and the first downstream flow segment.
  • the first downstream flow segment may be inclined away from the center of the burner from the first midstream flow segment.
  • the burner may further include a second mixture outlet channel.
  • the second mixture outlet channel may have a tip end formed as the second flame outlet and at least one second corner located upstream of the second flame outlet.
  • the second mixture outlet channel may include a second upstream flow segment, and a second downstream flow segment with a tip end formed as the second flame outlet.
  • the at least one second corner may be formed at an intersection between the second upstream flow segment and the second downstream flow segment.
  • the second downstream flow segment may be inclined away from the center of the burner from the second upstream flow segment.
  • the first flame outlet may be of an annular slit shape and may surround the second flame outlet.
  • the second flame outlet may be of an annular slit shape.
  • the burner may further include a plurality of first flame outlets.
  • the plurality of first flame outlets may be arranged at intervals in a ring shape and surround the second flame outlet.
  • the burner may further include a plurality of second flame outlets.
  • the plurality of second flame outlets may be arranged at intervals in a ring shape.
  • the burner may further include a stove and a flame cover.
  • the stove has a first receiving cavity and a second receiving cavity
  • the flame cover is disposed at the stove and includes a first flame cover, a second flame cover, and a third flame cover.
  • the first flame cover may surround the second flame cover.
  • the first flame outlet may be formed between the first flame cover and the second flame cover and be in communication with the first receiving cavity.
  • the second flame cover may surround the third flame cover.
  • the second flame outlet may be formed between the second flame cover and the third flame cover and be in communication with the second receiving cavity.
  • a first mixture outlet channel may be formed between the first flame cover and the second flame cover, and a second mixture outlet channel may be formed between the second flame cover and the third flame cover.
  • the stove may have a first annular wall, a second annular wall, and a third annular wall.
  • the first annular wall may surround the second annular wall, and the first receiving cavity may be formed between the first annular wall and the second annular wall.
  • the second annular wall may surround the third annular wall, and the second receiving cavity may be formed between the second annular wall and the third annular wall.
  • the first flame cover may be of a ring shape and may be disposed at the first annular wall.
  • the second flame cover may be of a ring shape, and may be disposed at the second annular wall.
  • the third flame cover may be of a ring shape, and may be disposed at the third annular wall.
  • the burner may further include a first induction tube connected to the stove and in communication with the first receiving cavity, and a second induction tube connected to the stove and in communication with the second receiving cavity.
  • one of a mixture intaking end of the first induction tube and a mixture intaking end of the second induction tube may be adapted to receive the gas and the blown air
  • another one of the mixture intaking end of the first induction tube and the mixture intaking end of the second induction tube may be adapted to receive the gas and the induced air
  • the burner may further include a fan adapted to provide the blown air.
  • the fan may be connected and fixed to the first induction tube or the second induction tube.
  • the first flame outlet may be adapted for ejecting of the gas and the induced air
  • the second flame outlet may be adapted for ejecting of the gas and the blown air
  • the burner may further include a third flame outlet adapted for ejecting of the gas and the induced air, and the third flame outlet may be located closer to the center of the burner than the second flame outlet.
  • a second aspect of the invention discloses a gas cooker.
  • the gas cooker includes the burner as described above.
  • the gas cooker may further include a valve adapted to adjust a gas flow rate.
  • the valve when gas supply to one of the first flame outlet and the second flame outlet is interrupted by the valve, the valve may maintain gas supply to the other one of the first flame outlet and the second flame outlet, and a fan of the gas cooker may be in an operation state to provide the blown air.
  • the valve when gas supply to the second flame outlet is interrupted by the valve, the valve may maintain gas supply to the first flame outlet and/or a third flame outlet, and the fan of the gas cooker may be in the operation state to provide the blown air.
  • a third aspect of the invention discloses an integrated electrical appliance.
  • the integrated electrical appliance includes the gas cooker as described above.
  • the invention discloses a burner.
  • the burner includes: a first flame outlet adapted for ejecting of a gas and induced air; a second flame outlet adapted for ejecting of the gas and blown air and located closer to a center of the burner than the first flame outlet; and a third flame outlet adapted for ejecting of the gas and the induced air and located closer to the center of the burner than the second flame outlet.
  • a flame generated at the first flame outlet may be adapted to perform flame stabilization on the second flame outlet.
  • the first flame outlet and the second flame outlet may be disposed at a same wall.
  • a thickness of a wall between the first flame outlet and the second flame outlet may be smaller than or equal to 6 mm.
  • the burner may further include a first mixture outlet channel.
  • the first mixture outlet channel may have a tip end formed as the first flame outlet and at least one first corner located upstream of the first flame outlet.
  • the burner may further include a second mixture outlet channel.
  • the second mixture outlet channel may have a tip end formed as the second flame outlet and at least one second corner located upstream of the second flame outlet.
  • the first mixture outlet channel of the burner may include a first downstream flow segment.
  • the first downstream flow segment may have a tip end formed as the first flame outlet, and is inclined away from or towards the center of the burner from bottom to top.
  • the second mixture outlet channel of the burner may include a second downstream flow segment.
  • the second downstream flow segment may have a tip end formed as the second flame outlet, and is inclined away from or towards the center of the burner from bottom to top.
  • the burner may further include a stove and a flame cover disposed at the stove.
  • the flame cover may have a first flame outlet, a second flame outlet, and a third flame outlet.
  • the flame cover may include an outer flame cover having the first flame outlet and the second flame outlet, an inner flame cover having the third flame outlet and surrounded by the outer flame cover, and a middle flame cover shielding a space between the outer flame cover and the inner flame cover.
  • the inner flame cover may be disposed at the center of the burner.
  • the inner flame cover may be a porous ceramic plate.
  • a top surface of the middle flame cover may be planar.
  • the top surface of the middle flame cover may be formed as a top surface of the flame cover.
  • the middle flame cover may be adapted to be abutted against an inner wall of the outer flame cover in a radial direction of the burner.
  • the outer flame cover may include a first flame cover, a second flame cover, and a third flame cover.
  • the middle flame cover may be disposed between the third flame cover and the inner flame cover to shield the space between the outer flame cover and the inner flame cover.
  • the middle flame cover and the third flame cover may be integrally formed.
  • the stove may have a first receiving cavity, a second receiving cavity, and a third receiving cavity.
  • the first flame outlet may be in communication with the first receiving cavity
  • the second flame outlet may be in communication with the second receiving cavity
  • the third flame outlet may be in communication with the third receiving cavity
  • the burner may further include a first induction tube, a second induction tube, and a third induction tube.
  • the first induction tube may be in communication with the first receiving cavity and be adapted to receive the gas and the induced air
  • the second induction tube may be in communication with the second receiving cavity and be adapted to receive the gas and the blown air
  • the third induction tube may be in communication with the third receiving cavity and be adapted to receive the gas and the induced air.
  • a plurality of second flame outlets may be provided, and the plurality of second flame outlets may be arranged at intervals in a ring shape and surround the third flame outlet.
  • a plurality of third flame outlets may be provided.
  • the first flame outlet may be of an annular slit shape and surround the plurality of second flame outlets.
  • the second flame outlet may be of an annular slit shape and surround the plurality of third flame outlets.
  • the third flame outlet may be of an annular slit shape.
  • the gas cooker may include a valve adapted to adjust a gas flow rate.
  • the valve when gas supply to the second flame outlet is interrupted by the valve, the valve may maintain gas supply to the first flame outlet and/or a third flame outlet, and a fan of the gas cooker may be in an operation state to provide the blown air.
  • a sixth aspect of the invention discloses an integrated electrical appliance.
  • the integrated electrical appliance includes the gas cooker as described above.
  • the second flame outlet is used for ejecting of the blown air and the gas.
  • the blown air provides sufficient oxygen to allow for full combustion of the gas ejected from the second flame outlet.
  • the first flame outlet is used for ejecting of the induced air and the gas.
  • the third flame outlet is used for ejecting of the induced air and the gas.
  • the second flame outlet is formed between the first flame outlet and the third flame outlet. Secondary air required for a flame generated at the first flame outlet can be provided by excess oxygen generated from the blown air, and secondary air required for a flame generated at the third flame outlet can also be provided by the excess oxygen generated from the blown air.
  • burner 100 flame cover 1000, first flame cover 1110, second flame cover 1120, third flame cover 1130, first mixture outlet channel 1500, first upstream flow segment 1510, first midstream flow segment 1520, first downstream flow segment 1530, first flame outlet 1531, first corner 1540, second mixture outlet channel 1600, second upstream flow segment 1610, second downstream flow segment 1620, second flame outlet 1621, second corner 1630, stove 2000, first annular wall 2100, second annular wall 2200, third annular wall 2300, first receiving cavity 2410, second receiving cavity 2420, first induction tube 3100, mixture intaking end 3110 of the first induction tube, second induction tube 3200, mixture intaking end 3210 of the second induction tube, fan 4000, outer flame cover 1100, inner flame cover 1200, middle flame cover 1300, first cover 1310, second cover 1320, third flame outlet 1430, third receiving cavity 2430, third induction tube 3300, mixture intaking end 3310 of third induction tube.
  • induced air which is primary air
  • the induced air and the gas are ejected from the interior of the burner after being mixed in the interior of the burner, and then are ignited to generate a flame.
  • the surrounding environment supplement air (which is called secondary air) to the flame through buoyancy and entrainment effects, assisting in the gas combustion. It can be seen that an amount of the primary air and an amount of the secondary air are core factors in ensuring full combustion of the ejected gas.
  • the amount of the primary air is affected by structures and operation conditions, while supplement of the secondary air relies on the buoyancy and entrainment effects, which is a passive supplement and places high demands on sizes of components and parts. Therefore, the combustion of the gas only realized by the induced air and the entrainment of the surrounding air is mostly in oxygen-poor combustion state, leading to insufficient combustion.
  • the invention improves an improved burner to at least improve a combustion degree of the gas to some extent, contributing to improvement of thermal efficiency of a gas cooker.
  • a first aspect of the invention discloses a burner 100.
  • the burner 100 includes a first flame outlet 1531 and a second flame outlet 1621.
  • the first flame outlet 1531 is located farther from a center of the burner than the second flame outlet 1621.
  • one of the first flame outlet 1531 and the second flame outlet 1621 is used for an ejection of blown air and a gas
  • another one of the first flame outlet 1531 and the second flame outlet 1621 is used for ejecting of induced air and the gas.
  • one of the first flame outlet 1531 and the second flame outlet 1621 may be used for ejecting of the gas and the blown air, and the blown air can provide sufficient oxygen to allow for full combustion of the gas ejected from the one of the first flame outlet 1531 and the second flame outlet 1621.
  • the blown air may generate excess oxygen to assist in combustion of the gas ejected from the other one of the first flame outlet 1531 and the second flame outlet 1621.
  • the gas ejected from the other one of the first flame outlet 1621 and the second flame outlet 1621 can also be fully burned under the actions of the induced air and the excess oxygen provided by the blown air.
  • the gas ejected from the first flame outlet 1621 and the second flame outlet 1621 can be fully burned with high combustion efficiency. Therefore, it is beneficial to an improvement of thermal efficiency of a gas cooker.
  • the burner 100 includes the first flame outlet 1531 and the second flame outlet 1621.
  • One of the first flame outlet 1531 and the second flame outlet 1621 is used for ejecting of the blown air and the gas, and the other one of the first flame outlet 1531 and the second flame outlet 1621 is used for ejecting of the induced air and the gas.
  • two implementations including a first implementation and a second implementation are provided.
  • the first flame outlet 1531 is used for ejecting of the blown air and the gas
  • the second flame outlet 1621 is used for ejecting of the induced air and the gas.
  • the first flame outlet 1531 is used for ejecting of the induced air and the gas
  • the second flame outlet 1621 is used for ejecting of the blown air and the gas.
  • first flame outlet 1531 is used for ejecting of the blown air and the gas
  • second flame outlet 1621 is used for ejecting of the induced air and the gas.
  • the second flame outlet 1621 is used for ejecting of the induced air and the gas, i.e., the induced air and the gas enter the interior of the burner 100, then are ejected from the interior of the burner 100 through the second flame outlet 1621, and finally are ignited to form the flame.
  • gas supply may be from either the canned liquefied gas or the piped natural gas, and the gas cooker includes a valve. After the valve is opened, the gas is delivered along gas pipelines.
  • the gas flows through the valve and is ejected through the nozzle.
  • the gas ejected from the nozzle is injected into the interior of the burner 100.
  • the air entrainment is implemented synchronously during the injection of the gas into the interior of the burner 100. In this way, the induced air enters the interior of the burner 100 along with the gas. Subsequently, the induced air and the gas are ejected from the second flame outlet 1621.
  • the first flame outlet 1531 is used for ejecting of the blown air and the gas, i.e., the blown air and the gas enter the interior of the burner 100, then are ejected from the interior of the burner 100 through the first flame outlet 1531, and finally are ignited to form the flame.
  • the gas supply may be from the canned liquefied gas or the piped natural gas
  • the gas cooker includes a valve. After the valve is opened, the gas is delivered along the gas pipeline. The gas flows through the valve and is ejected through the nozzle. The gas ejected from the nozzle is injected into the interior of the burner 100. During this process, the blown air is provided and generated by fluid machinery.
  • the blown air is provided by forced blowing of a fan 4000.
  • the blown air enters the interior of the burner 100 and is mixed with the gas (the blown air is used as the primary air).
  • the gas is ejected from the first flame outlet 1531.
  • the blown air can provide oxygen of a sufficient amount.
  • the gas ejected from the first flame outlet 1531 can be in a rich-oxygen combustion state, allowing the gas ejected from the first flame outlet 1531 to be fully burned (a flame generated at the first flame outlet 1531 can still entrain secondary air from the surrounding environment for the combustion).
  • the gas ejected from the second flame outlet 1621 cannot be fully burned by relying solely on the induced air and the entrainment of the surrounding air. Since the blown air may be ejected from the first flame outlet 1531, the first flame outlet 1531 may provide enough oxygen. As a result, the blow air can participate in the combustion of the gas ejected from the first flame outlet 1531, and the excess oxygen of the blown air can also be supplemented into the mixture of the induced air and the gas ejected from the second flame outlet 1621, to assist in the combustion of the gas ejected from the second flame outlet 1621.
  • the excess oxygen provided by the blown air ejected from the first flame outlet 1531 is more actively supplemented to the mixture of the induced air and the gas ejected from the second flame outlet 1621.
  • the gas ejected from the second flame outlet 1621 is fully burned (the flame generated at the second flame outlet 1621 still to entrain the secondary air from the surrounding environment for the combustion).
  • the solution where the first flame outlet 1531 is used for ejecting of the blown air and the gas and the second flame outlet 1621 is used for ejecting of the induced air and the gas has similar technical effects, and details thereof will be omitted herein.
  • the first flame outlet 1531 is located farther from the center of the burner 100 than the second flame outlet 1621.
  • the center of the burner 100 refers to a center of a flame ejecting range of the burner 100. That is, when the burner 100 is observed from top to bottom, the first flame outlet 1531 is located more outward than the second flame outlet 1621, and the second flame outlet 1621 is located more inward than the first flame outlet 1531, i.e., a minimum distance between the first flame outlet 1531 and the center of the burner 100 is greater than a minimum distance between the second flame outlet 1621 and the center of the burner 100.
  • the orientation in the invention uses a use environment where the gas cooker is mounted as a reference. A side of the gas cooker close to the ground refers to a down (bottom) side, and a side of the gas cooker away from the ground refers to an up (top) side.
  • the first flame outlet 1531 is used for ejecting of the blown air and the gas and the second flame outlet 1621 is used for ejecting of the induced air and the gas.
  • the flame strength is adjusted for the gas cooker, for example, when the flame strength is adjusted from high to low, the flame gradually extinguishes from outside to inside.
  • the first flame outlet 1531 is designed to be located more outward than the second flame outlet 1621, when the flame strength is adjusted from high to low, a flame at the first flame outlet 1531 is extinguished earlier than a flame at the second flame outlet 1621, i.e., gas supply to the second flame outlet 1621 is still maintained when gas supply to the first flame outlet 1531 is interrupted.
  • the blown air may still be introduced. The blown air is ejected from the first flame outlet 1531 and is supplemented to the mixture of the induced air and the gas ejected from the second flame outlet 1621, allowing the gas ejected from the second flame outlet 1621 to be sufficiently burned.
  • the first flame outlet 1531 is used for ejecting of the induced air and the gas and the second flame outlet 1621 is used for ejecting of the blown air and the gas. Since the first flame outlet 1531 is designed to be located more outward than the second flame outlet 1621, the first flame outlet 1531 is used for ejecting of the induced air and the gas, while the second flame outlet 1621 is used for ejecting of the blown air and the gas.
  • a flame formed at the first flame outlet 1531 is more likely to entrain the air from the surrounding environment, further improving a full combustion effect.
  • a flame generated at the other one of the first flame outlet 1531 and the second flame outlet 1621 is adapted to perform flame stabilization on the one of the first flame outlet 1531 and the second flame outlet 1621.
  • the phase "the one of the first flame outlet 1531 and the second flame outlet 1621" refers to an object for ejecting of the blown air and the gas
  • phase "the other one of the first flame outlet 1531 and the second flame outlet 1621" refers to an object for ejecting of the induced air and the gas.
  • the first flame outlet 1531 is used for ejecting of the blown air and the gas and the second flame outlet 1621 is used for ejecting of the induced air and the gas
  • the one of the first flame outlet 1531 and the second flame outlet 1621 is the first flame outlet 1531
  • the other one of the first flame outlet 1531 and the second flame outlet 1621 is the second flame outlet 1621.
  • the first flame outlet 1531 is used for ejecting of the induced air and the gas and the second flame outlet 1621 is used for ejecting of the blown air and the gas
  • the one of the first flame outlet 1531 and the second flame outlet 1621 is the second flame outlet 1621
  • the other one of the first flame outlet 1531 and the second flame outlet 1621 is the first flame outlet 1531.
  • the following description will be set forth by the example where the first flame outlet 1531 is used for ejecting of the blown air and the gas and the second flame outlet 1621 is used for ejecting of the induced air and the gas. It can be understood that the solution where "the first flame outlet 1531 is used for ejecting of the induced air and the gas and the second flame outlet 1621 is used for ejecting of the blown air and the gas" has similar technical effects, and details thereof are omitted herein. The blown air and the gas are ejected from the first flame outlet 1531.
  • the flame formed at the second flame outlet 1621 can both realize heating for a cooker and serve as a flame stabilization hole/flame stabilization groove. Accordingly, since the second flame outlet 1621 is used for ejecting of the induced air and the gas, the gas ejected from the second flame outlet 1621 has a more stable burning state.
  • the flame formed at the second flame outlet 1621 can ignite the gas ejected from the first flame outlet 1531.
  • the flame formed at the second flame outlet 1621 can heat a root of the gas ejected from the first flame outlet 1531 to ignite the gas ejected from the first flame outlet 1531.
  • the gas When leaving the first flame outlet 1531 quickly, the gas is ignited by the flame formed at the second flame outlet 1621, causing the gas quickly leaving from the first flame outlet 1531 to be burned at the first flame outlet 1531. In this way, occurrence of the flame separation phenomenon at the first flame outlet 1531 is suppressed, providing a flame stabilization effect on the first flame outlet 1531, and further improving the combustion efficiency.
  • the flames formed at the first flame outlet 1531 and the second flame outlet 1621 heat the cooker, the flames spread outwards due to blocking of the cooker.
  • first flame outlet 1531 When the first flame outlet 1531 is located more outward than the second flame outlet 1621, outward spreading of the flame formed at the second flame outlet 1621 makes it easier to be in contact with the gas ejected from the first flame outlet 1531, igniting the gas ejected from the first flame outlet 1531. Therefore, the flame stabilization effect on the first flame outlet 1531 can be further improved.
  • the burner 100 includes a first mixture outlet channel 1500.
  • a tip end of the first mixture outlet channel 1500 is formed as a first flame outlet 1531.
  • the first mixture outlet channel 1500 has at least one first corner 1540.
  • the first corner 1540 is located upstream of the first flame outlet 1531.
  • a mixture delivered along the first mixture outlet channel 1500 needs to flow through the first corner 1540 before being ejected from the first flame outlet 1531.
  • the arrangement of the first corner 1540 is beneficial to further uniform mixing of the mixture and deceleration of the mixture. As a result, uniformity and stability of the mixture ejected from the first flame outlet 1531 is improved.
  • the first mixture outlet channel 1500 includes a first upstream flow segment 1510, a first midstream flow segment 1520, and a first downstream flow segment 1530.
  • One of the at least one first corner 1540 is formed at an intersection between the first upstream flow segment 1510 and the first midstream flow segment 1520.
  • One of the at last one first corner 1540 is also formed at an intersection between the first midstream flow segment 1520 and the first downstream flow segment 1530.
  • the first downstream flow segment 1530 has a tip end formed as the first flame outlet 1531.
  • the mixture entering the interior of the burner 100 flows along the first mixture outlet channel 1500 and is finally discharged from the first flame outlet 1531.
  • the first upstream flow segment 1510 is located upstream of the first midstream flow segment 1520.
  • the first midstream flow segment 1520 is located upstream of the first downstream flow segment 1530.
  • the mixture flows through the first upstream flow segment 1510, the first midstream flow segment 1520, and the first downstream flow segment 1530 sequentially, and is finally discharged from the first flame outlet 1531.
  • the first corner 1540 is formed at the intersection between the first upstream flow segment 1510 and the first midstream flow segment 1520, and the mixture is required to be diverted when flowing from the first upstream flow segment 1510 to the first midstream flow segment 1520.
  • first corner 1540 is formed at the intersection between the first midstream flow segment 1520 and the first downstream flow segment 1530, and the mixture is also required to be diverted when flowing from the first midstream flow segment 1520 to the first downstream flow segment 1530. In this way, it is beneficial to further uniform mixing of the mixture and the deceleration of the mixture, improving the uniformity and stability of the mixture ejected from the first flame outlet 1531.
  • the second mixture outlet channel 1600 includes a second upstream flow segment 1610 and a second downstream flow segment 1620.
  • the second corner 1630 is formed at an intersection between the second upstream flow segment 1610 and the second downstream flow segment 1620.
  • the second downstream flow segment 1620 has a tip end formed as the second flame outlet 1621.
  • the second downstream flow segment 1620 is inclined away from the center of the burner 100 from the second upstream flow segment 1610.
  • the mixture is obliquely ejected away from the center of the burner 100.
  • the flame ejecting range is larger, making it more beneficial to the heating for the large-sized cooker.
  • the second upstream flow segment 1610 extends vertically, and the second downstream flow segment 1620 extends away from the center of the burner 100 from the second upstream flow segment 1610. After entering the second mixture outlet channel 1600, the mixture is required to be diverted once, and then is ejected from the second flame outlet 1621 along the second downstream flow segment 1620.
  • the first flame outlet 1531 is of an annular slit shape.
  • the first flame outlet 1531 of the annular slit shape can realize heating for the cooker in a wide range.
  • the annular slit shape also means that the first flame outlet 1531 is continuous in a circumferential direction of the burner 100.
  • the circumferential direction may refer to a direction around the center of the burner 100.
  • the burner 100 includes a plurality of first flame outlets 1531, i.e., two or more first flame outlets 1531. That is, at least two first flame outlets 1531 are provided.
  • the plurality of first flame outlets 1531 are arranged at intervals in a ring shape.
  • the second flame outlet 1621 is of an annular slit shape.
  • the second flame outlet 1621 of the annular slit shape can realize the heating for the cooker in a wide range.
  • the second flame outlet 1621 of the annular slit shape is continuous in the circumferential direction of the burner 100.
  • the excess oxygen in the mixture of the blown air and the gas ejected from the second flame outlet 1621 may increase its contact with the gas ejected from the first flame outlet 1531, improving an oxygen supplement effect on the mixture ejected from the first flame outlet 1531.
  • the burner 100 includes a plurality of second flame outlets 1621, i.e., two or more second flame outlets 1621. That is, at least two second flame outlets 1621 are provided.
  • the plurality of second flame outlets 1621 are arranged at intervals in a ring shape.
  • the plurality of second flame outlets 1621 are arranged at intervals in a ring shape in the circumferential direction of the burner 100.
  • the circumferential direction may refer to the direction around the center of the burner 100.
  • the mixture is ejected from the plurality of second flame outlets 1621 to generate the flame. In this way, the heating for the cooker in a wide range can also be realized.
  • the burner 100 includes a stove 2000 and a flame cover 1000.
  • the stove 2000 has a first receiving cavity 2410 and a second receiving cavity 2420.
  • the flame cover 1000 is disposed at the stove 2000 to cover the first receiving cavity 2410 and the second receiving cavity 2420.
  • the flame cover 1000 has a first flame outlet 1531 and a second flame outlet 1621.
  • the first flame outlet 1531 is in communication with the first receiving cavity 2410.
  • the second flame outlet 1621 is in communication with the second receiving cavity 2420.
  • the blown air and the gas are introduced into the first receiving cavity 2410, and mixed and ejected from the first flame outlet 1531 to be ignited to generate the flame, and the induced air and the gas are introduced into the second receiving cavity 2420, and mixed and ejected from the second flame outlet 1621 to be ignited to generate the flame.
  • the flame cover 1000 includes a first flame cover 1110, a second flame cover 1120, and a third flame cover 1130.
  • the first flame cover 1110 surrounds the second flame cover 1120.
  • the second flame cover 1120 surrounds the third flame cover 1130.
  • the first flame outlet 1531 is formed between the first flame cover 1110 and the second flame cover 1120.
  • the second flame outlet 1621 is formed between the second flame cover 1120 and the third flame cover 1130. In this way, the first flame outlet 1531 is located farther from the center of the burner 100 than the second flame outlet 1621. As a result, the first flame outlet 1531 and the second flame outlet 1621 are located on a same wall.
  • first flame outlet 1531 and the second flame outlet 1621 are located adj acent to each other, making it easier to realize the flame stabilization for one of the first flame outlet 1531 and the second flame outlet 1621 through the other one of the first flame outlet 1531 and the second flame outlet 1621, further improving the flame stabilization effect.
  • a first mixture outlet channel 1500 is formed between the first flame cover 1110 and the second flame cover 1120
  • a second mixture outlet channel 1600 is formed between the second flame cover 1120 and the third flame cover 1130. Since the first flame cover 1110 surrounds the second flame cover 1120 and the second flame cover 1120 surrounds the third flame cover 1130, the first flame cover 1110 and the second flame cover 1120 may be designed to be spaced apart from each other, i.e., without being in contact with each other, and the second flame cover 1120 and the third flame cover 1130 may be designed to be spaced apart from each other, i.e., without being in contact with each other. In this way, the first mixture outlet channel 1500 is formed into a continuous annular space, and the second mixture outlet channel 1600 is also formed into a continuous annular space. Therefore, assembling of the flame cover 1000 is facilitated, and detailed description thereof will be described below.
  • the stove 2000 has a first annular wall 2100, a second annular wall 2200, and a third annular wall 2300.
  • the first annular wall 2100 surrounds the second annular wall 2200.
  • the second annular wall 2200 surrounds the third annular wall 2300.
  • the first receiving cavity 2410 is formed between the first annular wall 2100 and the second annular wall 2200.
  • the second receiving cavity 2420 is formed between the second annular wall 2200 and the third annular wall 2300.
  • the first flame cover 1110 is of a ring shape.
  • the second flame cover 1120 is of a ring shape.
  • the third flame cover 1130 is of a ring shape.
  • the first flame cover 1110 is placed on the first annular wall 2100 to be supported on the first annular wall 2100 under a gravity effect.
  • the second flame cover 1120 is placed on the second annular wall 2200 to be supported on the second annular wall 2200 under the gravity effect.
  • the third flame cover 1130 is placed on the third annular wall 2300 to be supported on the third annular wall 2300 under the gravity effect. This arrangement facilitates assembling of the flame cover 1000 with the stove 2000.
  • the burner 100 includes a first induction tube 3100 and a second induction tube 3200.
  • the first induction tube 3100 is connected to the stove 2000 and thus is in communication with the first receiving cavity 2410.
  • the second induction tube 3200 is connected to the stove 2000 and thus is in communication with the second receiving cavity 2420.
  • One of a mixture intaking end 3110 of the first induction tube 3100 and a mixture intaking end 3210 of the second induction tube 3200 is adapted to engage with the nozzle and receive the blown air, and the other one of the mixture intaking end 3110 of the first induction tube 3100 and the mixture intaking end 3210 of the second induction tube 3200 is adapted to engage with the nozzle.
  • each of the first induction tube 3100 and the second induction tube 3200 has a Venturi structure.
  • the nozzle is aligned with the mixture intaking end 3110 of the first induction tube 3100 and ejects the gas. Meanwhile, the blown air enters through the mixture intaking end 3110 of the first induction tube 3100, for example, by a forced blowing of the fan 4000. The blown air and the gas are delivered to the first receiving cavity 2410, and are mixed and finally ejected from the first flame outlet 1531.
  • the fan 4000 may be fixedly connected to the first induction tube 3100, which is more convenient for the fan 4000 to cooperate with the mixture intaking end 3110 of the first induction tube 3100.
  • the mixture intaking end 3210 of the second induction tube 3200 is engaged with the nozzle. That is, the nozzle is aligned with the mixture intaking end 3210 of the second induction tube 3200 and ejects the gas. Meanwhile, the negative pressure is formed in the surrounding environment to induce the air, and the induced air and the gas are delivered to the second receiving cavity 2420, and are mixed and finally ejected from the second flame outlet 1621.
  • the nozzle is aligned with the mixture intaking end 3110 of the first induction tube 3100 and ejects the gas. Meanwhile, the negative pressure is formed in the surrounding environment to induce the air, and the induced air and the gas are delivered to the first receiving cavity 2410, and are mixed and finally ejected from the first flame outlet 1531. In addition, the nozzle is aligned with the mixture intaking end 3210 of the second induction tube 3200 and ejects the gas.
  • the blown air enters through the mixture intaking end 3210 of the second induction tube 3200, for example, by the forced blowing of the fan 4000.
  • the blown air and the gas are delivered to the second receiving cavity 2420, and are mixed and finally ejected from the second flame outlet 1621.
  • the fan 4000 may be fixedly connected to the second induction tube 3200, which is more convenient for the fan 4000 to cooperate with the mixture intaking end 3210 of the second induction tube 3200.
  • the burner 100 in combination with FIG. 15 to FIG. 18 , includes a first flame outlet 1410, a second flame outlet 1621, and a third flame outlet 1430.
  • the first flame outlet 1410 is used for ejecting of the induced air and the gas.
  • the second flame outlet 1621 is used for ejecting of the blown air and the gas.
  • the third flame outlet 1430 is used for ejecting of the induced air and the gas.
  • the second flame outlet 1621 is located closer to the center of the burner 100 than the first flame outlet 1410
  • the third flame outlet 1430 is located closer to the center of the burner 100 than the second flame outlet 1621.
  • the second flame outlet 1621 is used for ejecting of the blown air and the gas.
  • the blown air can provide sufficient oxygen to allow for full combustion of the gas ejected from the second flame outlet 1621.
  • the first flame outlet 1531 is used for ejecting of the induced air and the gas.
  • the third flame outlet 1430 is used for ejecting of the induced air and the gas.
  • the second flame outlet 1621 is formed between the first flame outlet 1531 and the third flame outlet 1430. Secondary air required for the flame generated at the first flame outlet 1531 can be provided by excess oxygen generated from the blown air, and secondary air required for the flame generated at the third flame outlet 1430 can also be provided by the excess oxygen generated from the blown air. With this arrangement, the gas ejected from the first flame outlet1531, the second flame outlet 1621, and the third flame outlet 1430 can be fully burned, resulting in the high combustion efficiency and contributing to the improvement of the thermal efficiency of the gas cooker.
  • the embodiments of the invention also disclose a gas cooker.
  • the gas cooker includes the above-described burner 100.
  • the burner 100 includes a first flame outlet 1531 and a second flame outlet 1621.
  • the first flame outlet 1531 is located farther from a center of the burner than the second flame outlet 1621.
  • one of the first flame outlet 1531 and the second flame outlet 1621 is used for ejecting of blown air and a gas
  • another one of the first flame outlet 1531 and the second flame outlet 1621 is used for ejecting of induced air and the gas.
  • one of the first flame outlet 1531 and the second flame outlet 1621 can be used for ejecting of the gas and the blown air.
  • the blown air provides sufficient oxygen to allow for full combustion of the gas ejected from the one of the first flame outlet 1531 and the second flame outlet 1621.
  • the blown air can generate excess oxygen to assist in combustion of the gas ejected from the other one of the first flame outlet 1531 and the second flame outlet 1621.
  • the gas ejected from the other one of the first flame outlet 1621 and the second flame outlet 1621 can be fully burned under the effects of the induced air and the excess oxygen provided by the blown air.
  • Such an arrangement finally allows the gas ejected from the first flame outlet 1621 and the second flame outlet 1621 to be fully burned with high combustion efficiency, which is beneficial to improvement of thermal efficiency of the gas cooker.
  • the valve maintains gas supply to the first flame outlet 1531 and/or a third flame outlet 1430, and a fan 4000 of the gas cooker is in an operation state to provide the blown air.
  • secondary air required for the flame generated at the first flame outlet 1531 can be provided by excess oxygen generated from the blown air
  • secondary air required for the flame generated at the third flame outlet 1430 can also be provided by the excess oxygen generated from the blown air.
  • the gas cooker includes a valve (not shown) for adjusting a gas flow rate.
  • the valve may maintain gas supply to one of the first flame outlet 1531 and the second flame outlet 1621 when gas supply to the other one of the first flame outlet 1531 and the second flame outlet 1621 is interrupted by the valve, and at this time, the fan 4000 of the gas cooker is still in the operation state.
  • the first flame outlet 1531 is the one of the first flame outlet 1531 and the second flame outlet 1621 for ejecting of the blown air and the gas
  • the second flame outlet 1621 is the other one of the first flame outlet 1531 and the second flame outlet 1621 for ejecting of the induced air and the gas.
  • the valve is a device for adjusting the gas flow rate, and has an inlet connected to the gas pipeline and an outlet connected to the nozzle. Flow rates of the gas finally delivered to the first flame outlet 1531 and the second flame outlet 1621 are adjusted by an adjustment of the valve.
  • a specific structure of the valve may refer to the related art, and details thereof are omitted herein.
  • the valve When the valve is adjusted until the gas supply to the first flame outlet 1531 is interrupted, the gas supply to the second flame outlet 1621 may still be maintained, and at this time, the fan 4000 is still in the operation state. In this way, the air (the blown air) forcibly delivered by the fan 4000 is ejected through the first flame outlet 1531 to be supplemented to the mixture ejected from the second flame outlet 1621. In this way, it can be ensured that the gas ejected from the second flame outlet 1621 can be sufficiently burned even when the gas is not ejected through the first flame outlet 1531.
  • the fan 4000 may be started synchronously when the gas cooker is ignited. No matter how the valve is adjusted, the fan 4000 still maintains its operation state and is closed until the gas cooker is shut down. In other embodiments of the invention, other control logic may also be employed, and details thereof are omitted herein.
  • Embodiments of the invention also disclose an integrated electrical appliance.
  • the integrated electrical appliance includes the gas cooker according to the above embodiments.
  • the so-called integrated electrical appliance is a device that integrates functions of the gas cooker and another traditional electrical appliance.
  • at least one of a microwave oven, an oven, a steamer, and a hood may be integrated with the gas cooker to form the integrated electrical appliance.
  • the integrated electrical appliance is not limited to the electrical appliances as described above, and any combination, which integrates with the gas cooker and may provide more functions than a separate gas cooker, may be considered as the integrated electrical appliance. It can be understood that since the gas cooker of the integrated electrical appliance of this embodiment adopts the technical solutions of the embodiments as described above, the gas cooker at least has the beneficial effects brought by the technical solutions of the embodiments as described above, and details thereof are omitted herein.
  • a combustion of a burner of a gas cooker requires secondary air supplement with insufficient primary air.
  • the secondary air is supplemented to the flame through buoyancy and entrainment effects from the surrounding environment. This method places high demands on sizes of the components. Therefore, there is improvement room for thermal efficiency of the gas cooker.
  • the second flame outlet 1621 is used for ejecting of the blown air and the gas.
  • the blown air can provide sufficient oxygen to allow for full combustion of the gas ejected from the second flame outlet 1621.
  • the first flame outlet 1531 is used for ejecting of the induced air and the gas.
  • the third flame outlet 1430 is used for ejecting of the induced air and the gas.
  • the second flame outlet 1621 is formed between the first flame outlet 1531 and the third flame outlet 1430. Secondary air required for a flame generated at the first flame outlet 1531 can be provided by excess oxygen generated from the blown air, and secondary air required for a flame generated at the third flame outlet 1430 can also be provided by the excess oxygen generated from the blown air. With this arrangement, the gas ejected from the first flame outlet 1531, the second flame outlet 1621, and the third flame outlet 1430 can be fully burned, resulting in the high combustion efficiency and contributing to improvement of the thermal efficiency of the gas cooker.
  • the second flame outlet 1621 is located closer to the center of the burner 100 than the first flame outlet 1531
  • the third flame outlet 1430 is located closer to the center of the burner 100 than the second flame outlet 1621.
  • the center of the burner 100 refers to a center of a flame ejecting range of the burner 100.That is, when the burner 100 is observed from top to bottom, the first flame outlet 1531 is located more outward than the second flame outlet 1621 and the third flame outlet 1430, the third flame outlet 1430 is located more inward than the first flame outlet 1531 and the second flame outlet 1621, and the second flame outlet 1621 is located between the first flame outlet 1531 and the third flame outlet 1430.
  • the third flame outlet 1430, the second flame outlet 1621, and the first flame outlet 1531 are sequentially arranged away from the center of the burner 100. Further, a minimum distance between the first flame outlet 1531 and the center of the burner 100 is greater than a minimum distance between the second flame outlet 1621 and the center of the burner 100, and the minimum distance between the second flame outlet 1621 and the center of the burner 100 is greater than a minimum distance between the third flame outlet 1430 and the center of the burner 100. In some cases, the third flame outlet 1430 may be located directly at the center of the burner 100, which is more beneficial to uniform temperature distribution.
  • the second flame outlet 1621 is used for ejecting of the blown air and the gas. Further, the blown air and the gas enter an interior of the burner 100, then are ejected from the interior of the burner 100 through the second flame outlet 1621, and are ignited to generate the flame.
  • the gas supply may come from a canned liquefied gas or a piped natural gas.
  • the gas cooker includes a valve. After the valve is opened, the gas is delivered along gas pipelines. The gas flows through the valve and is ejected through a nozzle. The gas ejected from the nozzle is injected into the interior of the burner 100. During this process, the blown air is provided and generated by fluid machinery.
  • the blown air is provided by forced blowing of a fan 4000.
  • the blown air enters the interior of the burner 100 and is mixed with the gas.
  • the blown air is primary air.
  • a mixture of the blown air and the gas is ejected from the second flame outlet 1621.
  • the blown air can provide more oxygen.
  • the gas ejected from the second flame outlet 1621 can be in a rich-oxygen combustion state, allowing the gas ejected from the second flame outlet 1621 to be fully burned.
  • the flame generated at the second flame outlet 1621 can still entrain secondary air from the surrounding environment for participating in the combustion.
  • the first flame outlet 1531 is used for ejecting of the induced air and the gas. Further, the induced air and the gas enter the interior of the burner 100, then are ejected from the interior of the burner 100 through the first flame outlet 1531, and are ignited to generate the flame.
  • the gas supply may come from either the canned liquefied gas or the piped natural gas.
  • the gas cooker includes a valve. After the valve is opened, the gas is delivered along the gas pipeline. The gas flows through the valve and is ejected through the nozzle. The gas ejected from the nozzle is injected into the interior of the burner 100. The air induction is realized simultaneously during the injecting of the gas into the interior of the burner 100.
  • the air induction may be understood by referring to the related art, which is generally based on the Venturi principle.
  • a negative pressure is formed in a surrounding environment, causing surrounding air to be entrained into the interior of the burner along with the injection of the gas (such air entering the interior of the burner 100 through an entrainment action is called induced air, which is primary air).
  • the induced air and the gas are ejected from the first flame outlet 1531 after being mixed in the interior of the burner 100, and then are ignited to generate a flame.
  • the induced air ejected from the first flame outlet 1531 is not enough to support the combustion of the gas ejected from the first flame outlet 1531, it is necessary to supplement the secondary air.
  • the blown air ejected from the second flame outlet 1621 can provide enough oxygen.
  • the blown air ejected from the second flame outlet 1621 may provide additional oxygen to be supplemented to the mixture of the induced air and the gas ejected from the first flame outlet 1531 to assist in the combustion of the gas ejected from the first flame outlet 1531.
  • the excess oxygen provided by the blown air ejected from the second flame outlet 1621 is more actively supplemented to the mixture of the blown air and the gas ejected from the first flame outlet 1531.
  • the gas ejected from the first flame outlet 1531 is fully burned (in this case, the flame generated at the first flame outlet 1531 can still entrain the secondary air from the surrounding environment to participate in the combustion).
  • the third flame outlet 1430 is used for ejecting of the induced air and the gas.
  • the induced air and the gas enter the interior of the burner 100, then are ejected from the interior of the burner 100 through the third flame outlet 1430, and are ignited to form the flame.
  • the gas supply may come from either the canned liquefied gas or the piped natural gas.
  • the gas cooker includes a valve. After the valve is opened, the gas is delivered along the gas pipeline. The gas flows through the valve and is ejected through the nozzle. The gas ejected from the nozzle is injected into the interior of the burner 100.
  • the air induction is realized synchronously during the ejecting of the gas into the interior of the burner 100.
  • the induced air and the gas enter the interior of the burner 100 to be mixed, then are ejected from the third flame outlet 1430, and are ignited to form the flame.
  • the induced air ejected from the third flame outlet 1430 is not enough to support the combustion of the gas ejected from the third flame outlet 1430, it is necessary to supplement the secondary air. Since the blown air can be ejected from the second flame outlet 1621, the blown air ejected from the second flame outlet 1621 can provide enough oxygen.
  • the blown air ejected from the second flame outlet 1621 may provide additional oxygen to be supplemented to the mixture of the induced air and the gas ejected from the third flame outlet 1430 to assist in the combustion of the gas ejected from the third flame outlet 1430.
  • the excess oxygen provided by the blown air ejected from the second flame outlet 1621 is more actively supplemented to the mixture of the blown air and the gas ejected from the first flame outlet 1531.
  • the gas ejected from the first flame outlet 1531 is fully burned (in this case, the flame generated at the first flame outlet 1531 can still entrain the secondary air from the surrounding environment to participate in the combustion).
  • the excess oxygen provided by the blown air ejected from the second flame outlet 1621 is more actively supplemented to the mixture of the blown air and the gas ejected from the third flame outlet 1430.
  • the gas ejected from the third flame outlet 1430 is fully burned (in this case, the flame generated at the third flame outlet 1430 can still entrain the secondary air from the surrounding environment to participate in the combustion).
  • the gas ejected from the first flame outlet 1531, the second flame outlet 1621, and the third flame outlet 1430 are fully burned with the high combustion efficiency, which is beneficial to the improvement of the thermal efficiency of the gas cooker.
  • the reference herein to sufficient combustion is relative to (i.e., relatively more sufficient) a combustion state achieved with only the induction of the air and the entrainment of the surrounding air.
  • the flame generated at the first flame outlet 1531 is adapted to perform flame stabilization on the second flame outlet 1621.
  • the blown air and the gas are ejected from the second flame outlet 1621.
  • the inventor finds that although the full combustion of the gas can be realized by the blown air, a flow rate of the mixture of the blown air and the gas ejected from the second flame outlet 1621 is relatively large through an effect of the blown air, and a speed at which the gas leaves from the second flame outlet 1621 is greater than a burning rate of the gas, easily causing a flame separation phenomenon.
  • the induced air and the gas can be ejected from first flame outlet 1531, the induced air is obtained through natural induction by ejecting the gas through the nozzle without being generated based on the fluid machinery.
  • a speed at which the gas leaves from the first flame outlet 1531 is not much different from the burning rate of the gas, which can realize stable combustion. That is, the flame formed at the first flame outlet 1531 is in a stable state. Since the flame formed at the first flame outlet 1531 is more stable, the flame generated at the first flame outlet 1531 can be used for performing flame stabilization on the second flame outlet 1621.
  • the flame formed at the first flame outlet 1531 can both realize heating for a cooker and serve as a flame stabilization hole/flame stabilization groove.
  • the gas ejected from the first flame outlet 1531 has a more stable burning state.
  • the flame formed at the first flame outlet 1531 can ignite the gas ejected from the second flame outlet 1621.
  • the flame formed at the first flame outlet 1531 can heat a root of the gas ejected from the second flame outlet 1621, to ignite the gas ejected from the second flame outlet 1621.
  • the gas When the gas leaves from the second flame outlet 1621 quickly, the gas can be ignited by the flame formed at the first flame outlet 1531, causing the gas quickly leaving from the second flame outlet 1621 to be burned at the second flame outlet 1621. In this way, occurrence of the flame separation phenomenon at the second flame outlet 1621 can be suppressed, providing a flame stabilization effect on the second flame outlet 1621, and thus further improving the combustion efficiency.
  • the first flame outlet 1531 and the second flame outlet 1621 are disposed at a same wall, and a thickness of a wall between the first flame outlet 1531 and the second flame outlet 1621 is smaller than or equal to 6 mm.
  • the thickness of the wall between the first flame outlet 1531 and the second flame outlet 1621 is 0.2 mm, 0.5 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, or 6 mm.
  • the burner 100 includes a first mixture outlet channel 1500.
  • a tip end of the first mixture outlet channel 1500 is formed as the first flame outlet 1531.
  • the first mixture outlet channel 1500 has at least one first corner 1540.
  • One of the at least one first corner 1540 is located upstream of the first flame outlet 1531.
  • a mixture delivered along the first mixture outlet channel 1500 needs to flow through the first corner 1540 before being ejected from the first flame outlet 1531.
  • the arrangement of the first corner 1540 is beneficial to further uniform mixing of the mixture and deceleration of the mixture, improving uniformity and stability of the mixture ejected from the first flame outlet 1531.
  • the first mixture outlet channel 1500 includes a first upstream flow segment 1510, a first midstream flow segment 1520, and a first downstream flow segment 1530,
  • One of the at least one first corner 1540 is formed at an intersection between the first upstream flow segment 1510 and the first midstream flow segment 1520.
  • One of the at least one first corner 1540 is formed at an intersection between the first midstream flow segment 1520 and the first downstream flow segment 1530.
  • the first downstream flow segment 1530 has a tip end formed as the first flame outlet 1531.
  • the mixture entering the interior of the burner 100 flows along the first mixture outlet channel 1500 and is finally discharged from the first flame outlet 1531.
  • the first upstream flow segment 1510 is located upstream of the first midstream flow segment 1520.
  • the first midstream flow segment 1520 is located upstream of the first downstream flow segment 1530.
  • the mixture flows through the first upstream flow segment 1510, the first midstream flow segment 1520, and the first downstream flow segment 1530 sequentially, and is finally discharged from the first flame outlet 1531.
  • one of the at least one first corner 1540 is formed at the intersection between the first upstream flow segment 1510 and the first midstream flow segment 1520, and the mixture is required to be diverted when flowing from the first upstream flow segment 1510 to the first midstream flow segment 1520.
  • one of the at least one first corner 1540 is formed at the intersection between the first midstream flow segment 1520 and the first downstream flow segment 1530, and the mixture is also required to be diverted when flowing from the first midstream flow segment 1520 to the first downstream flow segment 1530. In this way, it is beneficial to further uniform mixing of the mixture and the deceleration of the mixture, improving the uniformity and stability of the mixture ejected from the first flame outlet 1531.
  • the second mixture outlet channel 1600 includes a second upstream flow segment 1610 and a second downstream flow segment 1620.
  • the second corner 1630 is formed at an intersection between the second upstream flow segment 1610 and the second downstream flow segment 1620.
  • the second downstream flow segment 1620 has a tip end formed as the second flame outlet 1621.
  • the mixture entering the interior of the burner 100 flows along the second mixture outlet channel 1600 and is finally discharged from the second flame outlet 1621.
  • the second upstream flow segment 1610 is located upstream of the second downstream flow segment 1620. The mixture flows through the second upstream flow segment 1610 and the second downstream flow segment 1620 sequentially, and is finally discharged from the second flame outlet 1621.
  • the second corner 1630 is formed at the intersection between the second upstream flow segment 1610 and the second downstream flow segment 1620.
  • the mixture is required to be diverted when flowing from the second upstream flow segment 1610 to the second downstream flow segment 1620. In this way, it is beneficial to further uniform mixing of the mixture and the deceleration of the mixture, improving the uniformity and stability of the mixture ejected from the second flame outlet 1621.
  • the first mixture outlet channel 1500 includes a first downstream flow segment 1530.
  • the first downstream flow segment 1530 has a tip end formed as the first flame outlet 1531.
  • the first downstream flow segment 1530 is inclined away from the center of the burner 100 from bottom to top, and an orientation herein is referred to the use environment where the gas cooker is mounted as a reference.
  • a side of the gas cooker facing towards the ground is a down (bottom) side, and a side of the gas cooker away from the ground is an up (top) side.
  • the second mixture outlet channel 1600 includes a second downstream flow segment 1620.
  • the first downstream flow segment 1530 of the first mixture outlet channel 1500 is inclined towards the center of the burner 100 from bottom to top
  • the second downstream flow segment 1620 of the second mixture outlet channel 1600 is inclined towards the center of the burner 100 from bottom to top. Since the third flame outlet 1430 is located closer to the center of the burner 100 than the first flame outlet 1531 and the second flame outlet 1621, such an arrangement of the first downstream flow segment 1530 and the second downstream flow segment 1620 is more beneficial to flame transfer among the first flame outlet 1531, the second flame outlet 1621, and the third flame outlet 1430.
  • the burner 100 includes a stove 2000 and a flame cover 1000.
  • the flame cover 1000 is disposed at the stove 2000 to define a predetermined internal space together with the stove 2000.
  • the flame cover 1000 has a first flame outlet 1531, a second flame outlet 1621, and a third flame outlet 1430 formed on the flame cover 1000.
  • the first flame outlet 1531 is in communication with the internal space.
  • the second flame outlet 1621 is in communication with the internal space.
  • the third flame outlet 1430 is in communication with the internal space.
  • the stove 2000 has a first receiving cavity 2410, a second receiving cavity 2420, and a third receiving cavity 2430.
  • each of the first receiving cavity 2410, the second receiving cavity 2420, and the third receiving cavity 2430 are defined by the flame cover 1000.
  • the first flame outlet 1531 is in communication with the first receiving cavity 2410.
  • the induced air and the gas enter the first receiving cavity 2410, and are ejected through the first flame outlet 1531.
  • the second flame outlet 1621 is in communication with the second receiving cavity 2420.
  • the blown air and the gas enter the third receiving cavity 2430, and are ejected through the second flame outlet 1621.
  • the third flame outlet 1430 is in communication with the third receiving cavity 2430.
  • the induced air and the gas enter the third receiving cavity 2430, and are ejected through the third flame outlet 1430.
  • the first receiving cavity 2410 and the third receiving cavity 2430 may be designed to be in communication with each other on the stove 2000.
  • the induced air and the gas may enter the first receiving cavity 2410 and then enter the third receiving cavity 2430, and are finally ejected from the first flame outlet 1531 and the third flame outlet 1430.
  • the induced air and the gas may also enter the third receiving cavity 2430 and then enter the first receiving cavity 2410, and are finally may be ejected from the first flame outlet 1531 and the third flame outlet 1430.
  • the flame cover 1000 may have the first mixture outlet channel 1500 and the second mixture outlet channel 1600.
  • the burner 100 further includes a first induction tube 3100, a second induction tube 3200, and a third induction tube 3300.
  • the first induction tube 3100 is in communication with the first receiving cavity 2410, and is used for receiving the induced air and the gas.
  • the second induction tube 3200 is in communication with the second receiving cavity 2420, and is used for receiving the blown air and the gas.
  • the third induction tube 3300 is in communication with the third receiving cavity 2430, and is used for receiving the induced air and the gas.
  • the third induction tube 3300 has a Venturi structure.
  • the third induction tube 3300 is connected to the stove 2000. In this way, the third induction tube 3300 is in communication with the third receiving cavity 2430.
  • the mixture intaking end 3310 of the third induction tube 3300 is engaged with the nozzle.
  • the nozzle is aligned with the mixture intaking end 3310 of the third induction tube 3300 to eject the gas. Meanwhile, the negative pressure is formed on the surrounding environment to induce the air.
  • the induced air and the gas are delivered to the third receiving cavity 2430 to be mixed, and are finally ejected from the third flame outlet 1430.
  • the outer flame cover 1100 has the first flame outlet 1531 and the second flame outlet 1621, and thus an outer ring flame may be generated at the outer flame cover 1100 to form.
  • the inner flame cover 1200 has the third flame outlet 1430, and thus an inner ring flame may be generated at the inner flame cover 1200.
  • the so-called outer flame cover 1100 is a part of the flame cover 1000 close to or located at an outer side of the flame cover 1000.
  • the inner flame cover 1200 is a part of the flame cover 1000 close to or located at a center of the flame cover 1000. In this way, the outer flame cover 1100 surrounds the inner flame cover 1200 and is spaced apart from the inner flame cover 1200 by a predetermined distance.
  • This arrangement also allows the outer ring flame and the inner ring flame to be spaced apart from each other by a predetermined distance, increasing a flame ejecting area.
  • the middle flame cover 1300 is provided to shield the space between the outer flame cover 1100 and the inner flame cover 1200.
  • the so-called shielding means that the space between the outer flame cover 1100 and the inner flame cover 1200 is no longer visible when viewed from top to bottom, thus preventing debris and other contaminants from entering the space between the outer flame cover 1100 and the inner flame cover 1200.
  • the middle flame cover 1300 may be a separately prepared component, or integrally formed with at least a part of the outer flame cover 1100, or integrally formed with at least a part of the inner flame cover 1200.
  • the inner flame cover 1200 is connected and fixed to the middle flame cover 130.
  • the inner flame cover 1200 and the middle flame cover 1300 are constructed as an independent device and may be disassembled and assembled synchronously.
  • the middle flame cover 1300 includes a first cover 1310 and a second cover 1320.
  • the first cover 1310 extends vertically and surrounds the inner flame cover 1200.
  • the first cover 1310 and the inner flame cover 1200 are connected and fixed to each other.
  • the second cover 1320 is disposed at a top of the first cover 1310 and extends towards the outer flame cover 1100 to block the space between the outer flame cover 1100 and the inner flame cover 1200.
  • the inner flame cover 1200 is disposed at the center of the burner 100. That is, a flame generated at the inner flame cover 1200 is located within a center of the flame ejecting range. In this way, it is more beneficial for the gas cooker to be in a minimum-flame cooking state.
  • the inner flame cover 1200 covers the center of the burner 100.
  • the inner flame cover 1200 is a porous ceramic plate, and such porous structure allows the inner flame cover 1200 to have a plurality of third flame outlets 1430.
  • the inner flame cover 1200 can generate infrared combustion, i.e., the inner flame cover 1200 is formed as an infrared combustion flame cover, which is beneficial to realization of minimum-flame combustion.
  • a flame hole thermal intensity of the inner flame cover 1200 is small, which can realize full premixed combustion and reduce the demand for the secondary air even without supplementing of the secondary air (i.e. without entrainment of the surrounding air or excess oxygen ejected from the second flame outlet 1621).
  • the porous ceramic plate is mainly made of infrared ceramic materials.
  • a top surface of the middle flame cover 1300 is designed to be planar. Since the middle flame cover 1300 shields the space between the outer flame cover 1100 and the inner flame cover 1200, when the top surface of the middle flame cover 1300 is planar, the integrity of the flame cover 1000 is further improved, making the flame cover 1000 easier to be cleaned.
  • the top surface of the middle flame cover 1300 is formed as the top surface of the flame cover 1000, user's wiping action is smoother and less obstructed when cleaning the top surface of the flame cover 1000.
  • the top surface of the middle flame cover 1300 shown in FIG. 15 is a horizontal plane.
  • the middle flame cover 1300 is adapted to be abutted against an inner wall of the outer flame cover 1100 in a radial direction of the burner 100.
  • the middle flame cover 1300 is supported by the stove 2000 in a gravity direction, and is abutted against the inner wall of the outer flame cover 1100 in the radial direction of the burner 100.
  • the middle flame cover 1300 is restricted in two directions and is more stable. It can be understood that when the gas cooker is in a use environment, an up-down direction is an axial direction, the gravity direction is from top to bottom in the axial direction, and the radial direction is perpendicular to the axial direction.
  • the outer flame cover 1100 includes a first flame cover 1110, a second flame cover 1120, and a third flame cover 1130.
  • the first flame cover 1110 surrounds the second flame cover 1120, and the first flame outlet 1531 is formed between the first flame cover 1110 and the second flame cover 1120.
  • the second flame cover 1120 surrounds the third flame cover 1130, and the second flame outlet 1621 is formed between the second flame cover 1120 and the third flame cover 1130.
  • the middle flame cover 1300 is disposed between the third flame cover 1130 and the inner flame cover 1200 to shield the space between the outer flame cover 1100 and the inner flame cover 1200. In this way, the first flame outlet 1531, the second flame outlet 1621, and the third flame cover 1430 are arranged sequentially from the outside to the inside.
  • the middle flame cover 1300 and the outer flame cover 1100 may be separate components, or may be at least partially formed integrally.
  • the middle flame cover 1300 and the inner flame cover 1200 may be separate components, or may be at least partially formed integrally.
  • the middle flame cover 1300, the outer flame cover 1100, and the inner flame cover 1200 are separate components and are engaged with each other through assembling.
  • the middle flame cover 1300 and the third flame cover 1130 are integrally formed. That is, both the middle flame cover 1300 and the third flame cover 1130 are included in one component.
  • the middle flame cover 1300 and the inner flame cover 1200 are separate components.
  • a plurality of second flame outlets 1621 are provided, which means two or more second flame outlets 1621. That is, at least two second flame outlets 1621 are provided.
  • the plurality of second flame outlets 1621 are arranged at intervals in a ring shape.
  • the plurality of second flame outlets 1621 are arranged at intervals in a ring shape in the circumferential direction of the burner 100.
  • the circumferential direction may be understood as the direction around the center of the burner 100.
  • the plurality of second flame outlets 1621 can eject the mixture to generate flames, which can realize the heating of the cooker in a wide range. In addition to the above situation, it is also possible that, as illustrated in FIG. 17 and FIG.
  • the second flame outlet 1621 is of an annular slit shape.
  • the second flame outlet 1621 of the annular slit shape may realize the heating of the cooker in a wide range.
  • the second flame outlet 1621 is continuous in the circumferential direction of the burner 100, allowing the excess oxygen in the mixture ejected from the second flame outlet 1621 to increase its contact with the gas ejected from the first flame outlet 1531 or the third flame outlet 1430, further improving an oxygen supplement effect.
  • a plurality of third flame outlets 1430 are provided, which means two or more third flame outlets 1430. That is, at least two third flame outlets 1430 are provided.
  • the plurality of third flame outlets 1430 are arranged at intervals in a ring shape or arranged densely in a ring shape.
  • the third flame outlet 1430 is of an annular slit shape.
  • the plurality of first flame outlets 1531 surround the second flame outlet 1621 (the plurality of second flame outlets 1621 may be provided or the second flame outlet 1621 may be of an annular slit shape).
  • the first flame outlet 1531 of the annular slit shape surrounds the second flame outlet 1621 (the plurality of second flame outlets 1621 may be provided or the second flame outlet 1621 may be of an annular slit shape).
  • the second flame outlet 1621 is located further from the center of the burner 100 than the third flame outlet 1430, when the plurality of second flame outlets 1621 are provided and arranged in the ring shape, the plurality of second flame outlets 1621 surround the third flame outlet 1430 (the plurality of third flame outlets 1430 may be provided or the third flame outlet 1430 may be of an annular slit shape).
  • the second flame outlet 1621 is of an annular slit shape
  • the second flame outlet 1621 of the annular slit shape surrounds the third flame outlet 1430 (the plurality of third flame outlets 1430 may be provided or the third flame outlet 1430 may be of an annular slit shape).
  • Embodiments of the invention also disclose a gas cooker.
  • the gas cooker includes the above-described burner 100.
  • the burner 100 includes a first flame outlet 1531, a second flame outlet 1621, and a third flame outlet 1430.
  • the first flame outlet 1531 is used for ejecting of induced air and a gas.
  • the second flame outlet 1621 is used for ejecting of blown air and the gas.
  • the third flame outlet 1430 is used for ejecting of the induced air and the gas.
  • the second flame outlet 1621 is located closer to a center of the burner 100 than the first flame outlet 1531
  • the third flame outlet 1430 is located closer to the center of the burner 100 than the second flame outlet 1621.
  • the second flame outlet 1621 is used for ejecting of the blown air and the gas.
  • the blown air can provide sufficient oxygen to allow for full combustion of the gas ejected from the second flame outlet 1621.
  • the first flame outlet 1531 is used for ejecting of the induced air and the gas.
  • the third flame outlet 1430 is used for ejecting of the induced air and the gas.
  • the second flame outlet 1621 is formed between the first flame outlet 1531 and the third flame outlet 1430. Secondary air required for the flame generated at the first flame outlet 1531 can be provided by excess oxygen generated by the blown air, and secondary air required for the flame generated at the third flame outlet 1430 can also be provided by the excess oxygen generated by the blown air. With this arrangement, the gas ejected from the first flame outlet 1531, the second flame outlet 1621, and the third flame outlet 1430 can be fully burned, resulting in high combustion efficiency and contributing to improvement of thermal efficiency of the gas cooker.
  • the gas cooker includes a valve (not shown) for adjusting a gas flow rate.
  • the valve may maintain gas supply to the first flame outlet 1531 and/or the third flame outlet 1430 when gas supply to the second flame outlet 1621 is interrupted by the valve, and at this time, a fan 4000 of the gas cooker is still in an operation state.
  • the valve is a device for adjusting the gas flow rate, and has an inlet connected to a gas pipeline and an outlet connected to a nozzle. Flow rates of the gas finally delivered to the first flame outlet 1531, the second flame outlet 1430, and the third flame outlet 1430 are adjusted by an adjustment of the valve.
  • a specific structure of the valve may refer to the related art, and details thereof are omitted herein.
  • the air (the blown air) forcibly delivered by the fan 4000 is ejected through the second flame outlet 1621 to be supplemented to the mixture ejected from the first flame outlet 1531 and/or the third flame outlet 1430.
  • the fan 4000 may be started synchronously when the gas cooker is ignited. No matter how the valve is adjusted, the fan 4000 still maintains its operation state and is closed until the gas cooker is shut down. In other embodiments of the invention, other control logic may also be used, and details thereof are omitted herein.
  • Embodiments of the invention also disclose an integrated electrical appliance.
  • the integrated electrical appliance includes the gas cooker according to the above embodiments.
  • the so-called integrated electrical appliance is a device that integrates functions of the gas cooker and another traditional electrical appliance.
  • at least one of a microwave oven, an oven, a steamer, and a hood may be integrated with the gas cooker to form the integrated electrical appliance.
  • the integrated electrical appliance is not limited to the electrical appliances as described above, and any combination, which integrates with the gas cooker and may provide more functions than a separate gas cooker, may be considered as the integrated electrical appliance. It can be understood that since the gas cooker of the integrated electrical appliance of this embodiment adopts the technical solutions of the embodiments as described above, the gas cooker at least has the beneficial effects brought by the technical solutions of the embodiments as described above, and details thereof are omitted herein.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
EP25150182.1A 2024-07-29 2025-01-03 Brûleur, cuisinière à gaz et appareil électrique intégré Pending EP4686872A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202421811820.4U CN222911646U (zh) 2024-07-29 2024-07-29 燃烧器、燃气灶和集成电器
CN202411026125.1A CN121430021A (zh) 2024-07-29 2024-07-29 燃烧器、燃气灶和集成电器
CN202411026557.2A CN121430022A (zh) 2024-07-29 2024-07-29 燃烧器、燃气灶和集成电器
CN202421809709.1U CN222911644U (zh) 2024-07-29 2024-07-29 燃烧器、燃气灶和集成电器

Publications (1)

Publication Number Publication Date
EP4686872A1 true EP4686872A1 (fr) 2026-02-04

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EP (1) EP4686872A1 (fr)
WO (1) WO2026025606A1 (fr)

Citations (3)

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Publication number Priority date Publication date Assignee Title
US20190086078A1 (en) * 2017-09-18 2019-03-21 Haier Us Appliance Solutions, Inc. Gas burner assembly for a cooktop appliance
US20190309953A1 (en) * 2018-04-10 2019-10-10 Haier Us Appliance Solutions, Inc. Boosted gas burner assembly and a method of operating the same
US11326776B1 (en) * 2020-11-11 2022-05-10 Haier Us Appliance Solutions, Inc. Gas burner with a compact injet and flow sensor

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CN105650637B (zh) * 2016-03-29 2018-06-08 广东美的厨房电器制造有限公司 燃烧器的火盖及燃烧器
CN106949466B (zh) * 2017-03-15 2018-11-09 广东美的厨房电器制造有限公司 燃烧器和燃气灶具
CN110529850B (zh) * 2018-05-23 2024-07-23 宁波方太厨具有限公司 一种上进风燃烧器
CN213810616U (zh) * 2020-12-02 2021-07-27 杭州老板电器股份有限公司 一种燃烧器及灶具
CN214581069U (zh) * 2021-01-11 2021-11-02 青岛海尔智慧厨房电器有限公司 燃烧器及燃气灶
WO2022156046A1 (fr) * 2021-01-20 2022-07-28 佛山市顺德区美的洗涤电器制造有限公司 Chapeau de brûleur, brûleur et cuisinière à gaz
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CN116182158B (zh) * 2022-12-13 2025-08-08 华帝股份有限公司 一种三环火燃烧器
CN221375663U (zh) * 2023-10-16 2024-07-19 杭州老板电器股份有限公司 三环火燃烧器及燃气灶

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US20190086078A1 (en) * 2017-09-18 2019-03-21 Haier Us Appliance Solutions, Inc. Gas burner assembly for a cooktop appliance
US20190309953A1 (en) * 2018-04-10 2019-10-10 Haier Us Appliance Solutions, Inc. Boosted gas burner assembly and a method of operating the same
US11326776B1 (en) * 2020-11-11 2022-05-10 Haier Us Appliance Solutions, Inc. Gas burner with a compact injet and flow sensor

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