An electrically heated external fragrant stewing oven

Abstract

The invention discloses an electric heating external fragrance-type stewing and baking oven, which belongs to the field of stewing and baking equipment. It can change the heating method of traditional charcoal fire or gas stove and switch to a more energy-saving and safe electric heating method, so that food can be stewed and baked in the stewing and baking oven. By selectively arranging a fragrance component on the outer side of the oven mouth and placing spices such as charcoal and fruit wood, the special needs of users can be fully met. The characteristic of uniform heat of the oven body is utilized to heat the spices, so that the fragrance is released into the oven body through the fragrance component and slowly combined with the food. Compared with adding directly under the food, it has the characteristic of high safety. Since most spices are flammable materials, they are prone to combustion at high temperature and thus cause fire. The external arrangement can also facilitate users to add and replace spices, and by introducing a special hot breathing exchange balloon to accelerate and promote the interaction between the fragrance of the spices and the air in the oven body, the fragrance is more sufficient and in-depth, thereby improving the practicality of the stewing and baking oven.

Description

Technical Field

[0001] The invention relates to the field of stewing and baking equipment, and more specifically to an electrically heated external fragrant stewing and baking oven. Background Art

[0002] An oven is a device that uses hot air to bake and cook food. It is generally a closed or semi-closed structure. An oven is also called a baking oven, an oven, or a baking oven. The one that is heated by hot air in an open form is called a barbecue. An oven can also be used to refer to a device that uses hot gas for high-temperature treatment. As a type of oven, a stewing oven uses a fully enclosed stewing form, which can effectively reduce energy waste and make it easier to bake food and make it taste delicious. Traditional ovens use wood and coal for heating, which is a waste of resources, has certain environmental pollution, and also poses a certain threat to human health.

[0003] In recent years, with the improvement of people's living standards and the increasing demand for food diversification, barbecue food has been widely favored for its unique freshness, crispness and fragrance, and stewing ovens have also become popular in life. Whether it is a home or a restaurant, stewing ovens attract a group of loyal fans with their unique characteristics. However, most of the existing stewing ovens use gas stoves as heat sources. Although traditional charcoal stewing is avoided, the consumption of gas is obvious. As an unsustainable resource, gas is used less and less in the modern society that increasingly emphasizes environmental protection and sustainable development. With people's further pursuit of stewed and grilled food, charcoal aroma and fruity aroma have become people's favorite food flavors. However, charcoal fire and fruit wood, as flammable materials, are directly used for stewing and baking, which has a considerable combustion risk, is prone to fire, and is not very friendly to the environment. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide an electric heating external fragrance stewing oven, which can change the traditional heating method of charcoal fire or gas stove and switch to a more energy-saving and safe electric heating method, so as to stew and bake food in the stewing oven. By selectively arranging a fragrance component on the outside of the oven mouth and placing spices such as charcoal and fruit wood, the special needs of users can be fully met. The uniform heat characteristic of the furnace body is utilized to heat the spices, so that their fragrance is released into the furnace body through the fragrance component and slowly combines with the food. Compared with adding directly under the food, it has the characteristic of high safety. Since most spices are flammable materials, they are prone to burn and cause fire at high temperatures. The external arrangement can also make it convenient for users to add and replace spices. The introduction of special hot breathing exchange balloons accelerates and promotes the interaction between the fragrance of the spices and the air in the furnace body, so that the fragrance is more sufficient and profound, thereby improving the practicality of the stewing oven.

[0006] 2. Technical solution

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] An electrically heated external fragrant stewing and grilling oven, comprising a oven body and a matching oven cover, wherein the upper end of the oven cover is fixedly connected to a first handle, an air outlet and a thermometer, an electric heating source is arranged at the lower side of the oven body, a heating plate is fixedly installed at the upper end of the electric heating source, a positioning heating hole matching the heating plate is drilled at the lower side of the oven body, a furnace core is placed at the lower end of the oven body, a heat conducting plate in contact with the heating plate is placed at the upper end of the furnace core, a grilling grid is placed at the upper end of the heat conducting plate, and the oven mouth of the oven body A fragrance ring is placed at the place, the inner end of the fragrance ring is fixedly connected with an outer sealed inner ring, the upper and lower ends of the outer sealed inner ring are fixedly connected with integrally formed semi-ring protrusions, the furnace body and the furnace cover are close to each other and have semi-ring sealing grooves matching the semi-ring protrusions, the outer sealed inner ring is opened along the radial direction with multiple fragrance channels distributed in a circular array, the fragrance ring is opened with a fragrance hole matching the fragrance channel at one end close to the outer sealed inner ring, and the fragrance ring is filled with functional spices.

[0009] Furthermore, the fragrance ring includes a receiving half ring and a functional half ring, the receiving half ring is fixedly connected to the outer sealed inner ring, the upper end of the functional half ring is fixedly connected to a second handle, the receiving half ring and the functional half ring are fixedly connected to matching annular magnets at one end close to each other, and the magnetic poles of a pair of annular magnets are opposite at one end close to each other. The magnetic structure based on the annular magnet can facilitate the user to remove the functional half ring through the second handle, so as to add and replace functional fragrances. The operation is simple, safe and reliable, and accidental spontaneous combustion can be extinguished in time.

[0010] Furthermore, a heat breathing regeneration balloon is arranged at the very center of the Yixiang ring, and the heat breathing regeneration balloon is filled with carbon dioxide. A matching curved heat absorbing plate is fixedly connected to the upper end of the heat breathing regeneration balloon, and a plurality of evenly distributed heat conducting rods are fixedly connected to the curved heat absorbing plate and the lower end of the functional semi-ring. Carbon dioxide has a higher thermal expansion coefficient than air, and will force the heat breathing regeneration balloon to expand rapidly after being heated, which is similar to the inhalation phenomenon during breathing. However, after the heat of the carbon dioxide is transferred by the curved heat absorbing plate and the heat conducting rod, it will quickly cool down and contract under the elastic force of the heat breathing regeneration balloon itself, which is similar to the exhalation phenomenon during breathing. For example, through the expansion and contraction of the hot breathing exchange balloon in the fragrance ring, the air mixed with the fragrance of functional spices in the fragrance ring is forced to actively interact with the air in the furnace body. The whole process is similar to the breathing phenomenon, which allows the fragrance of functional spices to enter the furnace body more quickly and fully, and better act on food, enhancing the aroma of food. At the same time, carbon dioxide can also play a flame retardant effect by isolating oxygen. Even if the functional spices accidentally burn, the hot breathing exchange balloon will inevitably catch fire and rupture after burning to a certain extent. The carbon dioxide inside can be released to immediately isolate the air and have a fire extinguishing effect, thereby improving the safety of the use of functional spices.

[0011] Furthermore, a vaporization cavity is bored in the arc heat absorbing plate, and the vaporization cavity is filled with organic fluorocarbon compounds. A liquefaction flow channel matching the vaporization cavity is bored in the heat conducting rod. The endothermic vaporization and exothermic liquefaction phenomena of the organic fluorocarbon compounds are utilized to realize self-circulation of heat transfer, so as to assist the thermal breathing exchange balloon to realize "breathing".

[0012] Furthermore, a heat-conducting net is fixedly connected to the inner surface of the receiving half ring, and the functional fragrance is filled on the heat-conducting net with a uniform thickness, and the maximum height does not exceed the receiving half ring. The heat-conducting net plays a role of heat conduction and heat distribution, and can evenly transfer heat to the functional fragrance, and can ensure that the functional fragrance below can also be heated to emit fragrance. Maintaining a uniform filling thickness of the functional fragrance can increase the contact area with the air on the one hand, and on the other hand, it can free up a larger space for the thermal breathing exchange balloon to improve the breathing effect.

[0013] Furthermore, a plurality of displacement holes connected with the fragrance channel are bored on the outer seal inner ring, a matching lifting plate is slidably connected in the displacement holes, and a sliding hole matching with the fragrance channel is bored on the lifting plate. The sliding hole and the fragrance channel can be overlapped and staggered by the movement of the lifting plate in the displacement holes. That is, when the furnace cover is closed, the lifting plate is squeezed down to achieve overlap and complete the connection of the fragrance channel. When the furnace cover is opened, the lifting plate can be automatically reset to achieve stagger and complete the isolation of the fragrance channel. Due to the residual heat and the open nature of the furnace body, the waste caused by the continued release of the fragrance of the functional spices can be avoided, which is beneficial to saving unnecessary loss of functional spices.

[0014] Furthermore, limiting grooves are drilled on the two side walls of the shift hole, and a limiting slider is slidably connected in the limiting groove, and the limiting slider is fixedly connected to the lifting plate. A compression spring is fixedly connected between the limiting slider and the bottom wall of the limiting groove, which plays a guiding and limiting role in the lifting and lowering of the lifting plate. On the one hand, it can prevent the lifting plate from falling off, and on the other hand, it can achieve accurate overlap and staggering after the lifting and lowering of the lifting plate, and the compression spring plays a role of providing elastic force for the lifting plate to reset.

[0015] Furthermore, the outer surface of the semi-ring protrusion is covered with a matching thermal expansion layer, which can be made of thermal expansion rubber, graphite fiber or thermoplastic resin. After thermal expansion, it can further achieve sealing cooperation with the semi-ring sealing groove to avoid heat loss and improve the sealing between the furnace body and the furnace cover.

[0016] Furthermore, the arc-surface heat-absorbing plate, heat-conducting rod and functional semi-ring are made of aluminum alloy or copper, and the receiving semi-ring is made of high-temperature resistant glass. The functional semi-ring is used to indirectly transfer the heat of the thermal breathing exchange balloon to the outside air quickly, and at the same time has a certain mechanical strength. Due to its non-fixed characteristics, it needs to be frequently removed and closed, so the use of aluminum alloy or copper with higher hardness can avoid damage. The receiving semi-ring is made of glass, which can improve the ornamental effect on the one hand, and on the other hand, can be promptly informed and dealt with when the functional fragrance accidentally ignites.

[0017] Furthermore, a gap of more than 1-2 cm is retained between the fragrance ring and the furnace body and furnace cover, and a matching breathable membrane is fixedly connected to the fragrance hole. The fragrance ring does not contact the furnace body and furnace cover, which can protect them and avoid damage caused by size errors or thermal expansion and contraction during use. The breathable membrane can not only meet the air circulation, but also prevent functional spices from accidentally entering the furnace body, thereby improving the safety of the functional spices.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] (1) This solution can change the traditional heating method of charcoal fire or gas stove to a more energy-saving and safe electric heating method, and stew and bake food in the stewing oven. By selectively setting a fragrance component on the outside of the oven mouth, by placing charcoal, fruit wood and other spices, the special needs of users can be fully met. The uniform heat characteristic of the oven body is used to heat the spices, so that their fragrance is released into the oven body through the fragrance component and slowly combines with the food. Compared with adding directly under the food, it has the characteristic of high safety. Since most spices are flammable materials, they are prone to burn at high temperatures and cause fires. The outer setting can also make it convenient for users to add and replace spices. By introducing a special hot breathing exchange balloon, the interaction between the fragrance of the spices and the air in the oven body is accelerated and promoted, making the fragrance more sufficient and in-depth, thereby improving the practicality of the stewing oven.

[0021] (2) The fragrance ring includes a receiving half ring and a functional half ring. The receiving half ring is fixedly connected to the outer sealed inner ring. A second handle is fixedly connected to the upper end of the functional half ring. The receiving half ring and the functional half ring are fixedly connected to matching annular magnets at one end close to each other, and the magnetic poles of the pair of annular magnets are opposite at one end close to each other. The magnetic structure based on the annular magnet can facilitate the user to remove the functional half ring through the second handle, so as to add and replace functional fragrances. The operation is simple, safe and reliable, and accidental spontaneous combustion can be extinguished in time.

[0022] (3) A heat-breathing respiration balloon is arranged at the center of the Yixiang ring. The heat-breathing respiration balloon is filled with carbon dioxide. A matching arc-shaped heat-absorbing plate is fixedly connected to the upper end of the heat-breathing respiration balloon. The arc-shaped heat-absorbing plate and the lower end of the functional half ring are fixedly connected with a plurality of evenly distributed heat-conducting rods. Carbon dioxide has a higher thermal expansion coefficient than air. When heated, it will force the heat-breathing respiration balloon to expand rapidly, similar to the inhalation phenomenon during breathing. However, when the heat of carbon dioxide is transferred by the arc-shaped heat-absorbing plate and the heat-conducting rod, it will cool down rapidly and contract under the elastic force of the heat-breathing respiration balloon, similar to the exhalation phenomenon during breathing. The expansion and contraction of the breathing exchange balloon in the fragrance ring forces the air mixed with the fragrance of functional spices in the fragrance ring to actively interact with the air in the furnace body. The whole process is similar to the breathing phenomenon, which allows the fragrance of functional spices to enter the furnace body more quickly and fully, and better act on food, enhancing the fragrance of food. At the same time, carbon dioxide can also play a flame retardant effect by isolating oxygen. Even if the functional spices accidentally burn, the hot breathing exchange balloon will inevitably catch fire and rupture after burning to a certain extent. The carbon dioxide inside it can be released to immediately isolate the air and have a fire extinguishing effect, thereby improving the safety of the use of functional spices.

[0023] (4) A vaporization cavity is bored in the arc surface heat absorbing plate, and the vaporization cavity is filled with organic fluorocarbon compounds. A liquefaction flow channel matching the vaporization cavity is bored in the heat conducting rod. The endothermic vaporization and exothermic liquefaction phenomena of the organic fluorocarbon compounds are utilized to realize the self-circulation of heat transfer, so as to assist the thermal breathing exchange balloon to realize the "breathing effect".

[0024] (5) A heat-conducting net is fixedly connected to the inner surface of the receiving half ring, and the functional fragrance is filled on the heat-conducting net with a uniform thickness, and the maximum height does not exceed the receiving half ring. The heat-conducting net plays a role in heat conduction and heat distribution, and can evenly transfer heat to the functional fragrance, and can ensure that the functional fragrance below can also be heated to emit fragrance. The functional fragrance maintains a uniform filling thickness. On the one hand, it can increase the contact area with the air, and on the other hand, it can free up a larger space for the thermal breathing exchange balloon to improve the breathing effect.

[0025] (6) A plurality of displacement holes connected with the fragrance passage are bored on the inner ring of the outer seal, and a matching lifting plate is slidably connected in the displacement holes, and a sliding hole matching with the fragrance passage is bored on the lifting plate. The sliding hole and the fragrance passage can be overlapped and staggered by the movement of the lifting plate in the displacement holes, that is, when the furnace cover is closed, the lifting plate is squeezed down to achieve overlap, thus completing the connection with the fragrance passage; when the furnace cover is opened, the lifting plate can be automatically reset to achieve stagger, thus completing the isolation of the fragrance passage. Due to the residual heat and the open characteristics of the furnace body, the fragrance of the functional spices can be prevented from being wasted by continued release, which is beneficial to saving unnecessary loss of the functional spices.

[0026] (7) Limiting grooves are excavated on the two side walls of the displacement hole, and the limiting slider is slidably connected in the limiting groove, and the limiting slider is fixedly connected to the lifting plate. A compression spring is fixedly connected between the limiting slider and the bottom wall of the limiting groove, which plays a guiding and limiting role in the lifting and lowering of the lifting plate. On the one hand, it can prevent the lifting plate from falling off, and on the other hand, it can achieve accurate overlap and staggering after the lifting and lowering of the lifting plate. The compression spring plays a role in providing elastic force for the lifting plate to reset.

[0027] (8) The outer surface of the semi-ring protrusion is covered with a matching thermal expansion layer, which can be made of thermal expansion rubber, graphite fiber or thermoplastic resin. After thermal expansion, it can further achieve sealing cooperation with the semi-ring sealing groove to avoid heat loss and improve the sealing between the furnace body and the furnace cover.

[0028] (9) The arc-surface heat-absorbing plate, heat-conducting rod and functional semi-ring are made of aluminum alloy or copper, and the receiving semi-ring is made of high-temperature resistant glass. The functional semi-ring is used to indirectly transfer the heat of the thermal breathing exchange balloon to the outside air quickly and has a certain mechanical strength. Due to its non-fixed characteristics, it needs to be frequently removed and closed. Therefore, the use of aluminum alloy or copper with higher hardness can avoid damage. The receiving semi-ring is made of glass, which can improve the ornamental effect on the one hand, and on the other hand, can be promptly notified and dealt with when the functional fragrance accidentally ignites.

[0029] (10) A gap of more than 1-2 cm is reserved between the fragrance ring and the furnace body and furnace cover. A matching breathable membrane is fixedly connected in the fragrance hole. The fragrance ring does not contact the furnace body and furnace cover, which can protect them from damage caused by size errors or thermal expansion and contraction during use. The breathable membrane can not only meet the air circulation, but also prevent the functional fragrance from accidentally entering the furnace body, thereby improving the safety of the functional fragrance. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] Figure 2 is a cross-sectional view of the present invention;

[0032] Figure 3 It is a structural schematic diagram of the furnace mouth part of the present invention;

[0033] Figure 4 It is a top view of the fragrance ring part of the present invention;

[0034] Figure 5 It is a schematic diagram of the structure of the fragrance flow channel of the present invention in a flow state;

[0035] Figure 6 It is a schematic diagram of the structure of the present invention when the Yixiang flow channel is in a cut-off state;

[0036] Figure 7 It is a schematic diagram of the structure of the thermal breathing exchange balloon part of the present invention.

[0037] Description of the numbers in the figure:

[0038] 1 furnace body, 2 furnace cover, 3 barbecue grid, 4 electric heating source, 5 first handle, 6 air outlet, 7 thermometer, 8 fragrance ring, 801 receiving half ring, 802 functional half ring, 9 heating plate, 10 heat conducting plate, 11 annular magnet, 12 second handle, 13 outer seal inner ring, 14 half ring protrusion, 15 thermal expansion layer, 16 half ring sealing groove, 17 fragrance flow channel, 18 lifting plate, 19 functional fragrance, 20 heat conducting net, 21 hot breathing exchange balloon, 22 limit slider, 23 compression spring, 24 arc surface heat absorbing plate, 25 heat conducting rod. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Embodiment 1:

[0043] See also Figure 1-2, an electric heating external fragrance stewing and baking oven, comprising a stove body 1 and a matching stove cover 2, a first handle 5, an air outlet 6 and a thermometer 7 are fixedly connected to the upper end of the stove cover 2, an electric heating source 4 is arranged on the lower side of the stove body 1, which can be an induction cooker, and the interface of the electric heating source 4 includes a heat preservation prompt light, a time setting button, a switch and a temperature setting button, the temperature setting button includes an up and down temperature adjustment button and an optimal fragrance temperature of a corresponding functional spice 19, which helps the functional spice 19 to release the fragrance required for the food more fully and reasonably, a heating plate 9 is fixedly installed on the upper end of the electric heating source 4, and a positioning heating hole matching the heating plate 9 is drilled on the lower side of the stove body 1, which plays a role in positioning and stabilizing the stove body 1 on the one hand, and can realize the role of sealing heating on the other hand, a stove core is placed at the lower end of the stove body 1, the stove body 1 is made of iron plate sprayed plastic material, and the stove core is iron plate enamel material. During the stewing and baking process, the temperature rises to the target temperature in only 20m in, while it takes 30-35 minutes to heat up the temperature to the target temperature using ceramic materials. Compared with ceramic materials, the use of iron plate enamel materials can effectively shorten the time of the entire stewing and baking process and speed up the stewing and baking speed. The heat preservation effect of the stewing and baking oven is that the temperature drops by about 20°C within 1 hour, but the entire stewing and baking time is only about 20 minutes, so that in the stewing and baking process after the fire is turned off, the temperature does not change much, so that the stewing and baking effect is better, and the situation of poor taste of the finished product due to temperature difference is effectively avoided. At the same time, due to the small temperature drop, the heating time is greatly shortened during the next continuous baking, and the required fuel is also greatly reduced, which significantly saves resources and speeds up the stewing and baking efficiency. A heat-conducting plate 10 in contact with the heating plate 9 is placed on the upper end of the furnace, and a barbecue grid 3 is placed on the upper end of the heat-conducting plate 10 for placing food to be stewed and baked, and an aroma ring 8 is placed at the furnace mouth of the furnace body 1.

[0044] See also Figure 3-4The inner end of the fragrance ring 8 is fixedly connected with an outer sealed inner ring 13, and the upper and lower ends of the outer sealed inner ring 13 are fixedly connected with an integrally formed semi-ring protrusion 14, and the furnace body 1 and the furnace cover 2 are both close to each other. The end is chiseled with a semi-ring sealing groove 16 matching the semi-ring protrusion 14, and the outer sealed inner ring 13 is chiseled with a plurality of circular array distributed fragrance channels 17 along the radial direction, and the fragrance ring 8 is close to the outer sealed inner ring 13. The end is chiseled with a fragrance hole matching the fragrance channel 17, and the fragrance ring 8 is filled with functional fragrance 19. The fragrance ring 8 includes a receiving semi-ring 801 and a functional semi-ring 802. The arc surface heat absorbing plate 24, the heat conducting rod 25 and the functional semi-ring 802 are made of aluminum alloy or copper. The receiving semi-ring 801 is made of high temperature resistant glass. The functional semi-ring 802 is used to indirectly transfer the heat of the thermal breathing exchange balloon 21 to the outside air quickly, and has a certain mechanical strength. Due to its non-fixed nature, it needs to be frequently taken down and closed, so the use of aluminum alloy or copper with higher hardness can avoid damage. The use of glass material for the receiving half ring 801 can improve the ornamental value on the one hand, and on the other hand, when the functional fragrance 19 accidentally ignites, it can be promptly notified and dealt with. The receiving half ring 801 is fixedly connected to the outer sealed inner ring 13, and the upper end of the functional half ring 802 is fixedly connected to a second handle 12. The receiving half ring 801 and the functional half ring 802 are fixedly connected to matching annular magnets 11 at one end close to each other, and the magnetic poles of a pair of annular magnets 11 are opposite at one end close to each other. The magnetic structure based on the annular magnet 11 can facilitate the user to remove the functional half ring 802 through the second handle 12, so as to add and replace the functional fragrance 19. The operation is simple, safe and reliable, and accidental spontaneous combustion can be extinguished in time.

[0045] The outer surface of the semi-ring protrusion 14 is covered with a matching thermal expansion layer 15, which can be made of thermal expansion rubber, graphite fiber or thermoplastic resin. After thermal expansion, it can further achieve sealing cooperation with the semi-ring sealing groove 16 to avoid heat loss and improve the sealing between the furnace body 1 and the furnace cover 2.

[0046] A gap of more than 1-2 cm is retained between the fragrance ring 8 and the furnace body 1 and the furnace cover 2. A matching breathable membrane is fixedly connected in the fragrance hole. The fragrance ring 8 does not contact the furnace body 1 and the furnace cover 2, which can protect them from damage caused by size errors or thermal expansion and contraction during use. The breathable membrane can not only meet the air circulation, but also prevent the functional fragrance 19 from accidentally entering the furnace body 1, thereby improving the safety of the functional fragrance 19.

[0047] See also Figure 7A heat breathing regeneration balloon 21 is arranged in the center of the fragrance ring 8, and the heat breathing regeneration balloon 21 is filled with carbon dioxide. A fitting arc-shaped heat absorbing plate 24 is fixedly connected to the upper end of the heat breathing regeneration balloon 21, and a plurality of evenly distributed heat conducting rods 25 are fixedly connected to the arc-shaped heat absorbing plate 24 and the lower end of the functional semi-ring 802. Carbon dioxide has a higher thermal expansion coefficient than air. After being heated, it will force the heat breathing regeneration balloon 21 to expand rapidly, which is similar to the inhalation phenomenon during breathing. However, when the heat of the carbon dioxide is transferred by the arc-shaped heat absorbing plate 24 and the heat conducting rod 25, it will quickly cool down and shrink under the elastic force of the heat breathing regeneration balloon 21 itself, which is similar to the exhalation phenomenon during breathing. Through the expansion and contraction of the heat breathing regeneration balloon 21 in the fragrance ring 8, the air mixed with the fragrance of the functional fragrance 19 in the fragrance ring 8 is forced to actively communicate with the air in the furnace body. The whole process is similar to the breathing phenomenon, which allows the aroma of the functional fragrance 19 to enter the furnace body 1 more quickly and fully, and better act on the food to enhance the aroma of the food. At the same time, the carbon dioxide can also play a flame retardant effect by isolating oxygen. Even if the functional fragrance 19 accidentally burns, the thermal breathing regeneration balloon 21 will inevitably catch fire and rupture after burning to a certain extent. The carbon dioxide inside it can immediately isolate the air after being released to extinguish the fire, thereby improving the safety of the functional fragrance 19. A vaporization cavity is bored in the arc-surface heat absorbing plate 24, and the vaporization cavity is filled with organic fluorocarbon compounds. A liquefaction flow channel matching the vaporization cavity is bored in the heat conducting rod 25, and the endothermic vaporization and exothermic liquefaction phenomena of organic fluorocarbon compounds are utilized to realize the self-circulation of heat transfer, thereby assisting the thermal breathing regeneration balloon 21 to realize the "breathing effect".

[0048] Please continue reading Figure 2 The inner surface of the receiving half ring 801 is fixedly connected with a heat-conducting net 20, and the functional fragrance 19 is filled on the heat-conducting net 20 with a uniform thickness, and the maximum height does not exceed the receiving half ring 801. The heat-conducting net 20 plays a role in heat conduction and heat distribution, and can evenly transfer heat to the functional fragrance 19, and can ensure that the functional fragrance 19 below can also be heated to emit fragrance. The functional fragrance 19 maintains a uniform filling thickness. On the one hand, it can increase the contact area with the air, and on the other hand, it can free up a larger space for the thermal breathing exchange balloon 21 to improve the breathing effect.

[0049] See also Figure 3 and Figure 5-6, a plurality of displacement holes connected to the fragrance flow channel 17 are drilled on the outer seal inner ring 13, and a matching lifting plate 18 is slidably connected in the displacement hole, and a sliding hidden hole matching the fragrance flow channel 17 is drilled on the lifting plate 18. The sliding hidden hole and the fragrance flow channel 17 are overlapped and staggered by the movement of the lifting plate 18 in the displacement hole, that is, when the furnace cover 2 is closed, the lifting plate 18 is squeezed down to overlap and complete the connection of the fragrance flow channel 17. When the furnace cover 2 is opened, the lifting plate 18 can automatically reset to achieve staggering and complete the isolation of the fragrance flow channel 17. Due to the residual heat and the open characteristics of the furnace body 1, the function can be avoided The continued release of the fragrance of the spice 19 causes waste, which is beneficial to saving the unnecessary loss of the functional spice 19. Limiting grooves are chiseled on the walls on both sides of the shift hole, and a limiting slider 22 is slidably connected in the limiting groove, and the limiting slider 22 is fixedly connected to the lifting plate 18. A compression spring 23 is fixedly connected between the limiting slider 22 and the bottom wall of the limiting groove, which plays a guiding and limiting role in the lifting and lowering of the lifting plate 18. On the one hand, it can prevent the lifting plate 18 from falling off, and on the other hand, it can achieve accurate overlap and staggering after the lifting and lowering of the lifting plate 18. The compression spring 23 plays a role in providing elastic force for the lifting plate 18 to reset.

[0050] During use, the user removes the functional semi-ring 802 through the second handle 12, selects the functional spices 19 and fills them into the receiving semi-ring 801. After closing the functional semi-ring 802, the user opens the stove cover 2, puts the food on the barbecue grid 3 and then closes it. During the closing process, the stove cover 2 squeezes the lifting plate 18 and drops it until the sliding hole coincides with the fragrance channel 17 to achieve communication. The switch of the electric heating source 4 is turned on and the time and temperature are set in sequence before stewing. Due to the characteristics of stewing and baking, the heat is evenly distributed. The heat is conducted from the air in the stove body 1 to the air in the fragrance ring 8 through the fragrance channel 17, and then the functional spices 19 are gently heated, so that the fragrance of the functional spices 19 is slowly released as the temperature rises and enters the stove body 1 to act on the food. In this process, the thermal breathing exchange balloon 21 is also synchronously By absorbing heat from the air, the carbon dioxide is heated and quickly forces the hot breathing exchange balloon 21 to expand. When the heat of the carbon dioxide continues to be conducted upward to the curved heat absorbing plate 24, the curved heat absorbing plate 24 quickly absorbs heat and acts on the organic fluorocarbon compound acting as a condensing agent. After absorbing heat and vaporizing, it contacts the functional half ring 802 through the liquefaction flow channel to release heat and reliquefy and flow back to the vaporization cavity to wait for the next vaporization. In this process, the heat of the carbon dioxide is transferred to a certain extent. After cooling, the hot breathing exchange balloon 21 also has a certain contraction due to its elasticity. Through repeated expansion and contraction, the "breathing effect" of the hot breathing exchange balloon 21 is realized, forcing the air in the fragrance ring 8 and the air in the furnace body 1 to actively exchange, thereby further realizing the diffusion of the fragrance of the functional spices 19 and enhancing the aroma of the food after stewing and baking.

[0051] The present invention can change the traditional heating method of charcoal fire or gas stove and adopt a more energy-saving and safe electric heating method, so as to stew and bake food in the stewing and baking oven. By selectively arranging a fragrance component on the outer side of the oven mouth and placing spices such as charcoal and fruit wood, the special needs of users can be fully met. The uniform heat characteristic of the oven body is utilized to heat the spices, so that their fragrance is released into the oven body through the fragrance component and slowly combines with the food. Compared with adding directly under the food, it has the characteristic of high safety. Since most spices are flammable materials, they are prone to burn and cause fire at high temperatures. The outer arrangement can also make it convenient for users to add and replace spices. The introduction of a special hot breathing exchange balloon accelerates and promotes the interaction between the fragrance of the spices and the air in the oven body, so that the fragrance is more sufficient and in-depth, thereby improving the practicality of the stewing and baking oven.

[0052] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electrically heated external aroma-type stewing and roasting oven, comprising a furnace body (1) and a matching furnace cover (2), characterized in that: The upper end of the furnace cover (2) is fixedly connected with a first handle (5), an air outlet (6) and a thermometer (7); an electric heating source (4) is provided on the lower side of the furnace body (1); a heating plate (9) is fixedly installed on the upper end of the electric heating source (4); a positioning heating hole matching the heating plate (9) is drilled on the lower side of the furnace body (1); a furnace core is placed at the lower end of the furnace body (1); a heat conducting plate (10) in contact with the heating plate (9) is placed on the upper end of the furnace core; a grilling grid (3) is placed on the upper end of the heat conducting plate (10); and a heating plate (10) is placed at the furnace mouth of the furnace body (1). A fragrance ring (8) is provided, the inner end of the fragrance ring (8) is fixedly connected to an outer sealed inner ring (13), the upper and lower ends of the outer sealed inner ring (13) are fixedly connected to an integrally formed semi-ring protrusion (14), the furnace body (1) and the furnace cover (2) are both provided with a semi-ring sealing groove (16) matching the semi-ring protrusion (14) at one end close to each other, the outer sealed inner ring (13) is provided with a plurality of fragrance flow channels (17) distributed in an annular array along the radial direction, and the fragrance ring (8) is provided with a semi-ring sealing groove (16) matching the semi-ring protrusion (14) at one end close to the outer sealed inner ring (13). The fragrance ring (8) is provided with a fragrance hole, and the fragrance ring (8) is filled with functional fragrance (19); the fragrance ring (8) comprises a receiving half ring (801) and a functional half ring (802), the receiving half ring (801) is fixedly connected to the outer sealed inner ring (13), the upper end of the functional half ring (802) is fixedly connected to a second handle (12), and the receiving half ring (801) and the functional half ring (802) are fixedly connected to matching annular magnets (11) at one end close to each other, and the magnetic poles of the pair of annular magnets (11) are opposite at one end close to each other; the fragrance ring (801) is fixedly connected to the outer sealed inner ring (13), and the functional half ring (802) is fixedly connected to the upper end of the functional half ring (802), and the receiving half ring (801) and the functional half ring (802) are fixedly connected to matching annular magnets (11) at one end close to each other. 8) A thermal breathing respiration balloon (21) is arranged at the center, and the thermal breathing respiration balloon (21) is filled with carbon dioxide. The upper end of the thermal breathing respiration balloon (21) is fixedly connected with a matching curved heat absorbing plate (24), and the curved heat absorbing plate (24) and the lower end of the functional semi-ring (802) are fixedly connected with a plurality of evenly distributed heat conducting rods (25); a vaporization cavity is bored in the curved heat absorbing plate (24), and the vaporization cavity is filled with organic fluorocarbon compounds, and a liquefaction flow channel matching the vaporization cavity is bored in the heat conducting rod (25).

2. The electrically heated external aroma-type stewing and baking oven according to claim 1, characterized in that: The inner surface of the receiving half ring (801) is fixedly connected with a heat-conducting net (20), and the functional fragrance (19) is spread on the heat-conducting net (20) with a uniform thickness, and the maximum height does not exceed the receiving half ring (801).

3. The electrically heated external aroma-type stewing and baking oven according to claim 1, characterized in that: The outer sealed inner ring (13) is provided with a plurality of displacement holes connected to the fragrance flow channel (17), a matching lifting plate (18) is slidably connected in the displacement holes, and the lifting plate (18) is provided with sliding holes matching the fragrance flow channel (17).

4. The electrically heated external aroma-type stewing and baking oven according to claim 3, characterized in that: Limiting slots are cut on both side walls of the displacement hole, a limiting slider (22) is slidably connected in the limiting slot, and a compression spring (23) is fixedly connected between the limiting slider (22) and the lifting plate (18), and between the limiting slider (22) and the bottom wall of the limiting slot.

5. The electrically heated external aroma-type stewing and baking oven according to claim 1, characterized in that: The outer surface of the semi-ring protrusion (14) is covered with a matching heat expansion layer (15), and the heat expansion layer (15) is heat expansion rubber, graphite fiber or thermoplastic resin.

6. The electrically heated external aroma-type stewing and roasting oven according to claim 5, characterized in that: The arc surface heat absorbing plate (24), the heat conducting rod (25) and the functional half ring (802) are made of aluminum alloy or copper, and the receiving half ring (801) is made of high temperature resistant glass.

7. The electrically heated external aroma-type stewing and roasting oven according to claim 1, characterized in that: A gap of more than 1 cm is retained between the fragrance ring (8) and the furnace body (1) and the furnace cover (2), and a matching air-permeable membrane is fixedly connected inside the fragrance hole.

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