Oven with high energy efficiency ratio

Abstract

The utility model provides a high-energy-efficiency-ratio oven which comprises an inner container, an oven body, a heating device and a heating device. A combustion cavity is formed in the combustion box, the combustion cavity is communicated with the baking cavity, a combustion assembly is arranged in the combustion box, and the combustion assembly is an infrared gas assembly; one end of the air inlet pipe communicates with the lower end of the combustion cavity, and the other end of the air inlet pipe is provided with an air inlet valve used for adjusting the air inlet amount. And one end of the secondary air inlet duct is communicated with the combustion cavity. The baking oven has the advantages that the secondary air inlet duct is arranged, air in the secondary air inlet duct enters the baking cavity after being heated by the baking cavity, and the air is fused with high-temperature gas which is not completely burnt in the baking cavity and is secondarily ignited and burnt, so that fuel is fully burnt, fuel loss is reduced, smoke dust is reduced, and meanwhile, energy is saved. The utilization rate of comburent is improved, and the energy consumption is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of ovens, and particularly relates to an oven with a high energy efficiency ratio. Background Art

[0002] Ovens can be used to bake foods such as pizza, meat, and steaks. The application scenarios of ovens are very extensive. Especially in outdoor situations such as camping, using an oven to bake food is very popular among consumers.

[0003] The current ovens have the following problems in the use process: First, the combustion intensity of the combustibles is only adjusted by the exhaust volume, and the furnace temperature cannot be accurately adjusted, so it cannot meet the different temperature requirements of different foods; Second, the single-layer structure of the oven has fast heat dissipation and wastes combustibles; Third, the combustibles are not completely burned to produce high-temperature gases, generating soot while wasting combustibles; Fourth, there is no barrier between the combustion chamber and the baking chamber, and the problem of open fire burning and scorching food often occurs. Summary of the Utility Model

[0004] In view of this, the utility model aims to provide an oven with a high energy efficiency ratio, in order to solve the problems that the combustibles are not completely burned to produce high-temperature gases, wasting combustibles, and the baking efficiency is low.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows:

[0006] An oven with a high energy efficiency ratio, comprising:

[0007] An inner container, in which a baking chamber is provided;

[0008] A combustion box, in which a combustion chamber is provided. The combustion chamber is communicated with the baking chamber. A combustion component is provided in the combustion box, and the combustion component is an infrared gas component or a gas component or a pellet combustion component;

[0009] An intake pipe, one end of which is communicated with the lower end of the combustion chamber, and the other end is provided with an intake valve for adjusting the intake volume;

[0010] A secondary intake air duct, one end of which is communicated with the combustion chamber.

[0011] Further, it further comprises:

[0012] A housing, the inner container is installed inside the housing, there is a gap between the inner container and the housing, and a chimney communicated with the baking chamber is provided at the upper end of the housing. A rotating plate for adjusting the air outlet volume is provided on the chimney.

[0013] Further, the inner container comprises an upper container and a lower plate fixedly connected to the lower end of the upper container;

[0014] One end of the inner liner is provided with a feeding port, and the other end of the inner liner is provided with a hot air inlet, and the hot air inlet is communicated with the combustion chamber of the combustion box;

[0015] An installation groove is formed on the lower plate, a turntable is arranged in the installation groove, the turntable is rotatably connected with the lower plate, and a driving component is correspondingly arranged on the turntable, and the driving component is used for driving the turntable to rotate.

[0016] Furthermore, a combustion partition plate is fixedly arranged on the lower plate, and the combustion partition plate is located between the turntable and the hot air inlet;

[0017] The combustion partition plate is an arc-shaped plate, and the combustion partition plate is arranged coaxially with the turntable;

[0018] The lower end of the combustion partition plate is fixedly connected with the lower plate, and the upper end of the combustion partition plate inclines towards the turntable.

[0019] Furthermore, the edge of the upper liner near the feeding port is bent inwards to form a hot air retention plate.

[0020] Furthermore, the housing includes an upper shell and a lower shell fixedly connected with the upper shell, an opening corresponding to the feeding port is formed on the lower shell, and a furnace door for closing the opening and the feeding port is correspondingly arranged at the opening;

[0021] An air inlet corresponding to the air inlet end of the air inlet pipe is formed on the lower shell.

[0022] Furthermore, an installation hole is formed at the upper end of the upper liner, the lower end of the chimney penetrates through the installation hole and is located inside the baking cavity, and the upper end of the chimney is located outside the outer shell;

[0023] The rotating plate is rotatably connected with the chimney through a rotating shaft, and a first handle is arranged on the rotating shaft;

[0024] The lower end of the chimney is sealed, and exhaust holes are formed on the side wall of the part of the chimney located inside the baking cavity.

[0025] Furthermore, a retaining strip is arranged inside the air inlet end of the air inlet pipe, and the air outlet end of the air inlet pipe is communicated with the lower end of the combustion chamber;

[0026] A plurality of first through holes are formed on the retaining strip, and the plurality of first through holes are uniformly arranged along the length direction of the retaining strip;

[0027] The air inlet valve is movably connected inside the air inlet pipe along the length direction of the retaining strip, a second through hole corresponding to the first through hole is formed on the air inlet valve, and the area of the projection of the second through hole on the first through hole is adjusted by moving the air inlet valve to adjust the air intake;

[0028] A second handle is arranged on the air inlet valve.

[0029] Further, the secondary air intake duct is of an inverted U-shaped structure. The two ends of the secondary air intake duct are air intake ends. Second air intake holes corresponding to the air intake ends of the secondary air intake duct are formed in the lower shell. The lower end of the horizontal pipe portion of the secondary air intake duct communicates with the baking cavity.

[0030] A spoiler is provided on the inner side of the inner liner, and the spoiler is located between the chimney and the secondary air intake duct.

[0031] Further, the upper end of the spoiler is fixedly connected to the upper inner end of the inner liner, and the lower end of the spoiler is inclined towards the chimney direction.

[0032] When the combustion component in the combustion box is an infrared gas component, the infrared gas component is located above the rotating plate, and the radiation surface of the infrared gas component is arranged towards the rotating plate, and the vertical projection of the infrared gas component does not coincide with the rotating plate.

[0033] Compared with the prior art, the high energy efficiency ratio oven of the present invention has the following beneficial effects:

[0034] (1) The high energy efficiency ratio oven of the present invention is convenient. By providing a secondary air inlet duct, the air in the secondary air intake duct enters the baking cavity after being heated by the baking cavity, and is mixed with the high-temperature gas that has not been completely burned in the baking cavity, and is secondarily ignited and burned, so that the fuel burns sufficiently, reducing fuel loss, reducing the generation of soot, while improving the utilization rate of the combustibles, reducing energy consumption, and adjusting the air intake volume can control the combustion intensity, effectively adjusting the temperature in the baking cavity. Using an infrared gas component, due to the strong infrared heat radiation ability and fast heating speed, food can be cooked quickly.

[0035] (2) The high energy efficiency ratio oven of the present invention is convenient. By adjusting the positions of the rotating plate and the air intake door, the combustion intensity is controlled, and the temperature in the baking cavity is effectively adjusted to suit the different temperature requirements of various foods. Moreover, the gap between the inner liner and the outer shell improves the heat insulation performance, preventing heat loss and reducing energy consumption.

[0036] (3) For the high energy efficiency ratio oven of the present invention, the pizza to be baked is placed on the turntable. By rotating the turntable, the pizza can be heated evenly, ensuring the baking quality while improving the baking efficiency.

[0037] (4) For the high energy efficiency ratio oven of the present invention, the edge of the upper liner near the feeding port is bent inward to form a hot gas retention plate, which avoids excessive heat loss in the baking cavity when the oven door is opened, affecting the baking of the next pizza. The density of the hot gas is low and is generally at the upper end of the baking cavity. The form of bending the edge inward not only reduces the production cost of the oven but also improves the hot gas retention efficiency.

[0038] (5) The oven with high energy efficiency ratio of the present utility model has a sealed lower end of the chimney. An exhaust hole is opened on the side wall of the chimney located inside the baking cavity. The structures of the sealed lower end and the exhaust hole reduce the suction effect of the chimney, slow down the smoke exhaust speed of the chimney, control the heat loss speed in the baking cavity, and better maintain the temperature in the baking cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0040] Figure 1 is a schematic three-dimensional structure diagram of the oven according to the embodiment of the present utility model;

[0041] Figure 2 is an exploded three-dimensional structure diagram of the oven according to the embodiment of the present utility model;

[0042] Figure 3 is a schematic cross-sectional structure diagram of the oven according to the embodiment of the present utility model;

[0043] Figure 4 is of the present utility model according to the embodiment Figure 3 structural schematic diagram at position A;

[0044] Figure 5 is a schematic cross-sectional structure diagram of the intake pipe according to the embodiment of the present utility model;

[0045] Figure 6 is of the present utility model according to the embodiment Figure 5 structural schematic diagram at position B;

[0046] Figure 7 is a schematic three-dimensional structure diagram of the oven door according to the embodiment of the present utility model;

[0047] Figure 8 is a schematic three-dimensional structure diagram of the lower plate according to the embodiment of the present utility model;

[0048] Figure 9 is a schematic three-dimensional structure diagram of the upper liner according to the embodiment of the present utility model;

[0049] Figure 10 is a schematic three-dimensional diagram of the lower shell according to the embodiment of the present utility model.

[0050] Description of the reference numerals:

[0051] 1. Outer shell; 2. Inner liner; 3. Chimney; 4. Oven door; 5. Intake pipe; 6. Turntable; 7. Combustion box; 8. Secondary air intake duct; 101. Upper shell; 102. Lower shell; 103. Mounting hole; 104. Opening; 105. Air inlet; 106. Feeding door; 201. Upper liner; 202. Lower plate; 203. Combustion partition; 204. Mounting groove; 20101. Feed inlet; 20102. Hot gas retention plate; 20103. Turbulence plate; 301. Rotating plate; 302. Exhaust hole; 401. Third handle; 402. Glass plate; 501. Central hole; 502. Bar; 503. Air intake valve; 504. Second handle; 50201. First through hole; 50301. Second through hole. Detailed implementation mode

[0052] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0053] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0055] The present invention will be described in detail below with reference to the drawings and in combination with embodiments.

[0056] As Figures 1 to 10 shown, a high energy efficiency ratio oven includes;

[0057] Inner container 2, with a baking cavity provided inside the inner container 2;

[0058] Outer shell 1, the inner container 2 is installed inside the outer shell 1, there is a gap between the inner container 2 and the outer shell 1, a chimney 3 communicating with the baking cavity is provided at the upper end of the outer shell 1, and a rotating plate 301 for adjusting the air outlet volume is provided on the chimney 3;

[0059] Combustion box 7, with a combustion cavity provided inside the combustion box 7, and the combustion cavity communicates with the baking cavity;

[0060] Intake pipe 5, one end of the intake pipe 5 is communicated with the lower end of the combustion cavity, and the other end is provided with an intake valve 503 for adjusting the intake air volume.

[0061] In some embodiments, both the inner container 2 and the outer shell 1 are provided with placement openings for placing objects to be baked, such as pizza, etc.;

[0062] In some other embodiments, both the inner container 2 and the outer shell 1 are of a split structure, and pizza is placed through the opening and closing process.

[0063] The inner container 2 includes an upper container 201 and a lower plate 202 fixedly connected to the lower end of the upper container 201; a baking cavity is formed between the upper container 201 and the lower plate 202, and the two are connected to form the inner container 2.

[0064] One end of the inner container 2 is provided with a feed port 20101, and the other end of the inner container 2 is provided with a hot air inlet, and the hot air inlet communicates with the combustion cavity of the combustion box 7;

[0065] An installation groove 204 is provided on the lower plate 202, a turntable 6 is provided inside the installation groove 204, the turntable 6 is rotatably connected to the lower plate 202, and a driving component is correspondingly provided on the turntable 6, and the driving component is used to drive the turntable 6 to rotate. The driving component may adopt but is not limited to an existing motor, and the output shaft of the motor drives the turntable 6 to rotate through one of a gear, a belt, and a chain. The pizza to be baked is placed on the turntable 6, and by rotating the turntable 6, the pizza can be heated evenly, ensuring the baking quality while also improving the baking efficiency.

[0066] A combustion partition 203 is fixedly provided on the lower plate 202, and the combustion partition 203 is located between the turntable 6 and the hot air inlet; the combustion partition 203 is an arc-shaped plate, and the combustion partition 203 is coaxially arranged with the turntable 6; the lower end of the combustion partition 203 is fixedly connected to the lower plate 202, and the upper end of the combustion partition 203 is inclined towards the turntable 6. The combustion partition 203 is located between the turntable 6 and the hot air inlet, and the combustion partition 203 effectively blocks the open flame in the fuel chamber from directly contacting the food, avoiding burning and scorching the food. The arc-shaped design of the combustion partition 203 also ensures that the distance between the open flame and the pizza is the same, improving the rate of baking the pizza. The upper end of the combustion partition 203 being inclined towards the turntable 6 plays a guiding role for the hot air, enabling the hot air to smoothly enter the baking cavity.

[0067] The upper bile 201 is bent inward along the edge near the feed inlet 20101 to form a hot gas retention plate 20102, which can prevent excessive heat loss in the baking cavity when the oven door 4 is opened, affecting the baking of the next pizza. Since the density of hot gas is low and it is generally at the upper end of the baking cavity, the form of bending the edge inward not only reduces the production cost of the oven but also improves the hot gas retention efficiency.

[0068] The housing includes an upper shell 101 and a lower shell 102 fixedly connected to the upper shell 101. The lower shell 102 is provided with an opening 104 corresponding to the feed inlet 20101. A furnace door 4 for closing the opening 104 and the feed inlet 20101 is provided corresponding to the opening 104. A third handle 401 is fixedly provided on the furnace door 4. A window is opened on the furnace door 4, and a glass plate 402 is fixedly provided in the window. The setting of the glass plate 402 is convenient for observing the baking progress of the pizza. An air inlet 105 corresponding to the air inlet end of the air inlet pipe 5 is opened on the lower shell 102, and the handle is located in the air inlet 105, which is convenient for adjusting the position of the air inlet valve 503.

[0069] An installation hole 103 is opened at the upper end of the upper bile 201. The lower end of the chimney 3 passes through the installation hole 103 and is located inside the baking cavity, and the upper end of the chimney 3 is located outside the outer shell 1. The rotating plate 301 is rotatably connected to the chimney 3 through a rotating shaft, and a first handle is provided on the rotating shaft. The first handle is convenient for rotating the rotating plate 301 to adjust the exhaust cross-sectional area of the chimney 3.

[0070] In some embodiments, the rotating plate 301 matches the inner diameter of the chimney 3 and can completely block the chimney 3.

[0071] In some other embodiments, the rotating plate 301 is smaller than the inner diameter of the chimney 3 and does not completely block the chimney 3 to prevent incomplete combustion in the combustion box 7 from generating carbon monoxide.

[0072] The lower end of the chimney 3 is sealed, and exhaust holes 302 are opened on the side wall of the part of the chimney 3 located inside the baking cavity. The structure of the sealed lower end and the exhaust holes 302 reduces the suction effect of the chimney 3, slows down the smoke exhaust speed of the chimney 3, controls the hot gas loss speed in the baking cavity, and better maintains the temperature in the baking cavity.

[0073] Inside the intake end of the intake pipe 5, there is a baffle 502. The outlet end of the intake pipe 5 is communicated with the lower end of the combustion chamber. Multiple first through holes 50201 are opened on the baffle 502, and the multiple first through holes 50201 are evenly arranged along the length direction of the baffle 502. The intake valve 503 is movably connected to the inside of the intake pipe 5 along the length direction of the baffle 502. Second through holes 50301 corresponding to the first through holes 50201 are opened on the intake valve 503. By moving the intake valve 503, the area of the projection of the second through holes 50301 on the first through holes 50201 is adjusted to adjust the intake air volume. A second handle 504 is provided on the intake valve 503. A central hole 501 corresponding to the turntable 6 is opened on the intake pipe 5. The installation groove 204 and the turntable 6 are both located inside the central hole 501, reducing the occupied space of the intake pipe 5, and thus reducing the volume of the oven, making it convenient to carry.

[0074] In some embodiments, the widths of the first through holes 50201 and the second through holes 50301 are the same. Each first through hole 50201 is correspondingly provided with a second through hole 50301, and the distance between adjacent first through holes 50201 is the same as the width of the first through holes 50201. When the intake valve 503 is moved and the first through holes 50201 are aligned with the second through holes 50301, the intake air volume reaches the maximum. When the projections of the first through holes 50201 and the second through holes 50301 do not overlap completely, the first through holes 50201 are closed and no air will enter the combustion box 7.

[0075] In some embodiments, the width of the first through holes 50201 is greater than the width of the second through holes 50301. Each first through hole 50201 is correspondingly provided with a second through hole 50301. When the intake valve 503 is moved and the first through holes 50201 are aligned with the second through holes 50301, the intake air volume reaches the maximum. When the overlapping area of the projections of the first through holes 50201 and the second through holes 50301 is the smallest, the intake air volume is the smallest. At this time, the combustibles in the combustion box 7 will not go out due to lack of oxygen, and it is in a standby state at this time.

[0076] A secondary intake air duct 8 is provided outside the inner liner 2. The secondary intake air duct 8 is of an inverted U-shaped structure. The two ends of the secondary intake air duct 8 are intake ends. Second intake holes corresponding to the intake ends of the secondary intake air duct 8 are opened on the lower shell 102. The lower end of the horizontal pipe part of the secondary intake air duct 8 is communicated with the baking cavity. The secondary intake air duct 8 is installed outside the inner liner 2, and the air inlet 105 is at the bottom. The air in the secondary intake air duct 8 enters the inside of the baking cavity at the lower end of the horizontal pipe part after being heated by the baking cavity, and is fused with the high-temperature gas that has not been completely burned in the baking cavity, and is secondarily ignited and burned, so that the fuel burns fully, reducing fuel loss, reducing the generation of soot, and improving the utilization rate of the combustibles while reducing energy consumption.

[0077] Inside the inner liner 2, there is a spoiler 20103. The spoiler 20103 is located between the chimney 3 and the secondary air intake duct 8. The upper end of the spoiler 20103 is fixedly connected to the upper inner end of the inner liner 2, and the lower end of the spoiler 20103 inclines towards the chimney 3. When the hot air that is not fully burned in the combustion chamber meets the hot air discharged from the secondary combustion pipe, it can be better fused under the backpressure of the spoiler 20103, extending the outflow time and providing more time for secondary ignition.

[0078] The combustion box 7 provides heat in one of the ways of using combustion particles, gas, or infrared gas. The combustion box 7 is located inside the outer shell 1, and the combustion box 7 is detachably connected to the outer shell 1.

[0079] The structure of the combustion box 7 using gas to provide heat is as follows: The gas cylinder is connected to the combustion chamber through a gas pipe, and the flow regulating valve on the gas pipe is controlled to adjust the gas volume.

[0080] The structure of the combustion box 7 using infrared gas to provide heat is as follows: The gas cylinder is connected to the combustion chamber through a gas pipe, and the flow regulating valve on the gas pipe is controlled to adjust the gas volume. The gas burns in the infrared burner and provides heat to the roasting cavity.

[0081] The structure of the combustion box 7 using particle combustion to provide heat is as follows: A feeding door 106 is correspondingly provided at the upper end of the combustion box 7. The feeding door 106 is connected to the housing. Opening the feeding door 106 is used to add particle fuel. There is a combustion plate inside the combustion box 7, and a slag leakage port is opened on the combustion plate. The combustion plate divides the combustion cavity into an upper cavity and a lower cavity. The upper cavity is connected to the roasting cavity, and the lower cavity is connected to the outlet end of the intake pipe 5.

[0082] When the combustion component in the combustion box 7 is an infrared gas component, the infrared gas component is located above the rotating plate 301, and the radiation surface of the infrared gas component is set towards the rotating plate 301. The vertical projection of the infrared gas component does not coincide with the rotating plate 301. Compared with the traditional way of installing the combustion at the bottom or side of the roasting cavity, the installation position in this application can more effectively radiate heat energy directly and evenly into the roasting cavity, quickly increase the temperature in the roasting cavity, effectively shorten the heating time, the heat energy is uniform, and since the vertical projection of the infrared gas component does not coincide with the rotating plate 301, the dust generated by the infrared gas component will not fall on the food being roasted on the rotating plate 301.

[0083] Working process:

[0084] Place the pizza to be roasted on the turntable 6, turn on the combustion box 7, and control the combustion intensity by adjusting the positions of the rotating plate 301 and the intake valve 503, effectively adjusting the temperature in the roasting cavity to suit the different temperature requirements of various foods. Moreover, the gap between the inner liner 2 and the outer shell 1 improves the heat insulation performance, prevents heat loss, and reduces energy consumption.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present embodiments, and they should all be covered by the scope of the claims and the description of the present invention.

[0086] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An oven with a high energy efficiency ratio, characterized in that, Comprising: Inner liner (2), with a baking cavity provided inside the inner liner (2); Combustion box (7), with a combustion cavity provided inside the combustion box (7), the combustion cavity communicating with the baking cavity, and a combustion assembly provided inside the combustion box (7), the combustion assembly being a gas assembly or a pellet combustion assembly; Air inlet pipe (5), one end of the air inlet pipe (5) communicating with the lower end of the combustion cavity, and the other end being provided with an air inlet valve (503) for adjusting the air intake; Secondary air intake duct (8), one end of the secondary air intake duct (8) communicating with the combustion cavity.

2. The high energy efficiency ratio oven according to claim 1, characterized in that, Further comprising: Outer shell (1), the inner liner (2) being installed inside the outer shell (1), there being a gap between the inner liner (2) and the outer shell (1), a chimney (3) communicating with the baking cavity being provided at the upper end of the outer shell (1), and a rotating plate (301) for adjusting the air outlet volume being provided on the chimney (3).

3. The high energy efficiency ratio oven according to claim 2, characterized in that: The inner liner (2) includes an upper liner (201) and a lower plate (202) fixedly connected to the lower end of the upper liner (201); One end of the inner liner (2) is provided with a feeding port (20101), and the other end of the inner liner (2) is provided with a hot air inlet, the hot air inlet communicating with the combustion cavity of the combustion box (7); An installation groove (204) is provided on the lower plate (202), a turntable (6) is provided inside the installation groove (204), the turntable (6) being rotatably connected to the lower plate (202), and a driving assembly is correspondingly provided for the turntable (6), the driving assembly being used to drive the turntable (6) to rotate.

4. An energy-efficient oven according to claim 3, characterized in that: A combustion partition plate (203) is fixedly provided on the lower plate (202), the combustion partition plate (203) being located between the turntable (6) and the hot air inlet; The combustion partition plate (203) is an arc-shaped plate, and the combustion partition plate (203) is coaxially arranged with the turntable (6); The lower end of the combustion partition plate (203) is fixedly connected to the lower plate (202), and the upper end of the combustion partition plate (203) inclines towards the turntable (6).

5. The high energy efficiency ratio oven according to claim 3, characterized in that: The edge of the upper liner (201) near the feeding port (20101) is bent inwards to form a hot gas retention plate (20102).

6. The high energy efficiency ratio oven according to claim 3, characterized in that: The housing includes an upper housing (101) and a lower housing (102) fixedly connected to the upper housing (101), the lower housing (102) being provided with an opening (104) corresponding to the feeding port (20101), and a furnace door (4) for closing the opening (104) and the feeding port (20101) being correspondingly provided at the opening (104); An air inlet (105) corresponding to the air inlet end of the air inlet pipe (5) is provided on the lower housing (102).

7. An energy-efficient oven according to claim 3, wherein: An installation hole (103) is provided at the upper end of the upper liner (201), the lower end of the chimney (3) passing through the installation hole (103) and being located inside the baking cavity, and the upper end of the chimney (3) being located outside the outer shell (1); The rotating plate (301) is rotatably connected to the chimney (3) through a rotating shaft, and a first handle is provided on the rotating shaft; The lower end of the chimney (3) is sealed, and exhaust holes (302) are provided on the side wall of the part of the chimney (3) located inside the baking cavity.

8. The high-efficiency ratio oven according to claim 1, wherein: A stop bar (502) is provided inside the air inlet end of the air inlet pipe (5), and the air outlet end of the air inlet pipe (5) communicates with the lower end of the combustion cavity; A plurality of first through holes (50201) are provided on the stop bar (502), and the plurality of first through holes (50201) are uniformly arranged along the length direction of the stop bar (502); The intake valve (503) is movably connected to the inner side of the intake pipe (5) along the length direction of the retaining strip (502). A second through hole (50301) corresponding to the first through hole (50201) is formed in the intake valve (503). The area of the projection of the second through hole (50301) on the first through hole (50201) is adjusted by moving the intake valve (503) to adjust the intake air volume. A second handle (504) is provided on the intake valve (503).

9. A high energy efficiency ratio oven according to claim 1, characterized in that: The secondary intake air duct (8) has an inverted U-shaped structure. Both ends of the secondary intake air duct (8) are intake ends. Secondary intake air holes corresponding to the intake ends of the secondary intake air duct (8) are formed in the lower housing (102). The lower end of the horizontal pipe portion of the secondary intake air duct (8) communicates with the baking cavity. A flow deflector (20103) is provided inside the inner container (2). The flow deflector (20103) is located between the chimney (3) and the secondary intake air duct (8). The upper end of the flow deflector (20103) is fixedly connected to the upper inner side of the inner container (2), and the lower end of the flow deflector (20103) inclines towards the chimney (3).

10. The high energy efficiency ratio oven according to claim 2, characterized in that: When the combustion component in the combustion box (7) is an infrared gas component, the infrared gas component is located above the rotating plate (301), and the radiation surface of the infrared gas component is arranged facing the rotating plate (301), and the vertical projection of the infrared gas component does not coincide with the rotating plate (301).

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