Smoke blocking cover and gas oven thereof

Abstract

The smoke blocking hood comprises an upper smoke blocking section, a lower smoke blocking section, an upper smoke blocking section and a lower smoke blocking section, and an exhaust port and an installation port are formed in the upper end and the lower end of the upper smoke blocking section respectively; the lower flow guide section is arranged behind the upper smoke blocking section, and the front end of the lower flow guide section is connected with the bottom of the upper smoke blocking section. According to the smoke blocking cover, mutual interference between cooking oil smoke and combustion smoke can be effectively reduced, and the cooking oil smoke can be prevented from polluting the cooking cavity and the combustion device.

Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen electrical technology field especially, relates to a smoke baffle and gas oven thereof. BACKGROUND

[0002] The existing electric oven or electric steaming oven uses electric energy to heat food, and the corresponding system is complex, and there are more parts, so the corresponding cost is higher. Because the electric heating tube is usually designed inside the cavity, oil stains and dirt will cover the surface after long-term use, which is not easy to clean. In addition, the heating tube has problems such as whole machine power limitation and low efficiency, which leads to relatively slow speed in the actual cooking process.

[0003] In foreign kitchen cooking products, some use gas ovens, such as traditional oven stoves in Japan, which put food into the liner and directly heat the food with gas combustion fumes. The combustion fumes generated during cooking can directly contact the food. Because the gas combustion may not be sufficient, some fume smell may remain on the food, which may pose a certain risk to the health of users. In addition, the cooking oil fume generated during cooking not only interferes with the combustion fumes, but also pollutes the liner assembly and the heating tube. SUMMARY

[0004] The utility model aims at at least in a certain extent solves one of the problems existing in prior art related technology, for this purpose, the utility model provides a smoke baffle, which can effectively reduce the mutual interference between cooking oil fume and combustion fume, and avoid cooking oil fume pollution cooking cavity and combustion device. The utility model also provides a gas oven.

[0005] According to the above-mentioned smoke baffle, the following technical solutions are realized:

[0006] A smoke baffle, comprising: an upper smoke baffle section, an exhaust port and a mounting port are respectively arranged at the upper and lower ends of the upper smoke baffle section; and a lower flow guide section, which is arranged behind the upper smoke baffle section, and the front end of the lower flow guide section is connected with the bottom of the upper smoke baffle section.

[0007] In some embodiments, the lower flow guide section is arranged at an acute angle with the upper smoke baffle section.

[0008] In some embodiments, the upper smoke baffle section is vertically arranged, the lower flow guide section is arranged inclined upward and backward, and the lower flow guide section is integrally formed with the upper smoke baffle section.

[0009] In some embodiments, the rear end of the lower flow guide section is arranged higher than the upper edge of the mounting port.

[0010] In some embodiments, an annular flange extending rearward is integrally formed on the periphery of the mounting port; the exhaust port is arranged rearward and upwardly inclined, and / or the diameter of the exhaust port gradually increases from bottom to top.

[0011] In some embodiments, the exhaust port comprises a bottom surface and two lateral surfaces, the bottom surface is arranged rearward and upwardly inclined, and the two lateral surfaces are respectively connected to the left and right ends of the bottom surface.

[0012] In some embodiments, a flow dividing surface extending upward is fixedly arranged at the rear end of the exhaust port.

[0013] In some embodiments, at least one flow dividing portion extending upward is protruded on the top of the flow dividing surface.

[0014] According to the above-mentioned gas oven, the above technical scheme is adopted to achieve the following technical effects:

[0015] The gas oven comprises: a liner assembly provided with a cavity opening forward, at least one smoke exhaust port is arranged on the top or back upper end of the liner assembly; a smoke baffle cover as described above, the smoke baffle cover is arranged in the cavity and connected to the top of the liner assembly at the upper end and connected to the back of the liner assembly at the rear end, the smoke baffle cover divides the cavity into a cooking cavity and a smoke baffle cavity, the smoke baffle cavity is communicated with at least one smoke exhaust port, and the cooking cavity is communicated with the cooking cavity or the smoke exhaust port through the exhaust port; a combustion device arranged on the liner assembly, the smoke outlet end of the combustion device is communicated with the cooking cavity; and a baking tray device arranged in the cooking cavity and provided with a cooking space and an air outlet, the air outlet extends into the mounting port, and the cooking space is communicated with the smoke baffle cavity through the air outlet.

[0016] In some embodiments, a flow dividing surface extending upward is fixedly arranged at the rear end of the exhaust port, the top of the flow dividing surface abuts against the top of the liner assembly, and the flow dividing surface divides the lower end surface of at least one smoke exhaust port into front and rear parts, wherein the front part is communicated with the cooking cavity through the exhaust port, and the rear part is communicated with the smoke baffle cavity.

[0017] In some embodiments, a flow dividing portion extending upward is protruded on the top of the flow dividing surface at a position corresponding to the smoke exhaust port, the flow dividing portion extends into the smoke exhaust port and divides the smoke exhaust port into a front smoke inlet and a rear smoke inlet.

[0018] Compared with the prior art, the gas oven has at least the following beneficial effects:

[0019] The smoke baffle of this utility model has a simple structure and can separate the cooking fumes and combustion fumes generated in the gas oven to reduce mutual interference between the cooking fumes and combustion fumes. At the same time, it can also prevent the cooking fumes from polluting the cooking cavity and combustion device in the gas oven. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the gas oven in this embodiment of the utility model;

[0021] Figure 2 This is a cross-sectional view of the gas oven in an embodiment of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the smoke shield in this utility model embodiment. Figure 1 ;

[0023] Figure 4 This is a schematic diagram of the structure of the smoke shield in this utility model embodiment. Figure 2 .

[0024] In the diagram: 1-Gas oven, 11-Outer shell assembly, 115-Lower combustion chamber, 12-Inner cavity assembly, 121-Cooking cavity, 122-Smoke baffle, 123-Smoke vent, 13-Oven burner, 14-Baking tray assembly, 141-Base, 1411-Serving area, 1412-Small boss, 1413-Riboid groove, 1414-Lower raised edge, 1415-Flanged hole, 142-Top cover, 1421-Upper concave cavity, 1422-Upper raised edge, 1423-Positioning hole, 1424-Dome, 142 5-Guide channel, 143-Cooking space, 144-Air outlet, 15-Smoke baffle, 151-Lower guide section, 1511-Lower mounting surface, 1512-Rear mounting surface, 152-Upper smoke baffle section, 1521-Mounting port, 1522-Exhaust port, 1523-Annular flange, 1524-Upper mounting surface, 1531-Lower bottom surface, 1532-Side surface, 1533-Diverting surface, 1534-Diverting section, 16-Smoke exhaust device, 161-Smoke exhaust hood, 162-Fixed bracket, 17-Door assembly. Detailed Implementation

[0025] The following embodiments illustrate the present invention, but the present invention is not limited to these embodiments. Modifications to the specific implementation of the present invention or equivalent substitutions for some technical features, without departing from the spirit of the present invention, should all be covered within the scope of the technical solution claimed by the present invention.

[0026] Example 1

[0027] refer to Figures 1-4The embodiment provides a smoke baffle, the smoke baffle 15 comprises a lower flow guide section 151 and an upper smoke baffle section 152 which are fixedly connected and arranged at an angle, the lower flow guide section 151 is arranged behind the upper smoke baffle section 152 and the front end of the lower flow guide section 151 is connected with the bottom of the upper smoke baffle section 152, and the rear end of the lower flow guide section 151 is used for being connected with the back of the inner container assembly 12 of the gas oven 1. An exhaust port 1522 and a mounting port 1521 are respectively arranged at the upper end and the lower end of the upper smoke baffle section 152, the exhaust port 1522 is used for allowing the combustion flue gas generated during the operation of the gas oven 1 to pass through, and the mounting port 1521 is used for allowing the gas outlet 144 of the baking tray device 14 in the gas oven 1 to pass through.

[0028] Reference Figures 1-2 When the smoke baffle 15 is installed in the inner container assembly 1 of the gas oven 1, the smoke baffle 15 can divide the inner container assembly 1 into a cooking cavity 121 and a smoke baffle cavity 122, the baking tray device 14 is arranged in the cooking cavity 121 and is provided with a cooking space 143 and a gas outlet 144, the gas outlet 144 extends into the mounting port 1521, and the cooking space 143 is communicated with the smoke baffle cavity 122 through the gas outlet 144. As can be seen, the arrangement of the smoke baffle 15 makes the cooking cavity 121 and the smoke baffle cavity 122 independent of each other, which is beneficial to reduce the mutual interference between the cooking oil fume and the combustion flue gas, and can also avoid the pollution of the cooking oil fume to the cooking cavity 121 and the combustion device in the gas oven 1, so that the cooking cavity 121 is easier to clean.

[0029] Reference Figures 2-4 The lower flow guide section 151 is arranged at an acute angle with the upper smoke baffle section 152. The upper smoke baffle section 152 is arranged vertically to reduce the deposition of the combustion flue gas and the cooking oil fume on the surface of the upper smoke baffle section 152. The lower flow guide section 151 is arranged to be inclined upward and rearward, so that the combustion flue gas rising in the rear part of the cooking cavity 121 is refracted after passing through the lower flow guide section 151 of the smoke baffle 15, and then flows to the baking tray device 14, so as to heat the food in the baking tray device 14, and the cooking flue gas generated by the heating of the food in the baking tray device 14 flows into the smoke baffle cavity 122 through the gas outlet 144, and when the cooking flue gas passes through the lower flow guide section 151, the cooking flue gas is refracted to flow upward obliquely, which is consistent with the smoke exhaust flow path, so as to avoid the mutual interference of the initial airflow and the reflected airflow of the cooking oil fume entering the smoke baffle cavity 122, and improve the smoke exhaust efficiency.

[0030] In the embodiment, the rear end of the lower flow guide section 151 is arranged to be higher than the upper edge of the mounting port 1521, so that when the cooking flue gas flowing out of the gas outlet of the baking tray device 14 flows upward after passing through the lower flow guide section 151, the cooking flue gas flowing out of the gas outlet of the baking tray device 14 is prevented from directly contacting the back of the inner container assembly 12 and being reflected back, so as to effectively reduce the mutual interference and influence between the reflected airflow and the new airflow flowing out of the gas outlet 144, thereby reducing the smoke exhaust resistance and improving the discharge efficiency of the cooking oil fume.

[0031] Reference Figures 2-4 The lower flow guide section 151 is integrally formed with the upper smoke blocking section 152 to facilitate rapid molding. A rear mounting surface 1512 extending upward or downward is fixed at the rear end of the lower flow guide section 151, and the rear mounting surface 15121 is configured to be connected and fixed to the back of the inner container assembly 12. An upper mounting surface 1524 extending forward or rearward is fixed at the top of the upper smoke blocking section 152, and the upper mounting surface 1524 is configured to be connected and fixed to the top of the inner container assembly 12.

[0032] An annular flange 1523 extending rearward is integrally formed around the periphery of the installation opening 1521 to strengthen the smoke blocking cover 14 and facilitate further reliable support of the air outlet 144 of the baking tray device 14 (see Figure 2 ). The exhaust opening 1522 is arranged inclined upward and rearward, so that the exhaust opening itself can play a flow guiding role, facilitating rapid smoke exhaust, and also facilitating reduction of mutual interference between cooking fumes and combustion fumes; and / or the diameter of the exhaust opening 1522 gradually increases from bottom to top to facilitate rapid smoke exhaust.

[0033] The exhaust opening 1522 includes a lower bottom surface 1531 and two lateral surfaces 1532. The lower bottom surface 1531 is arranged inclined upward and rearward, so that the lower bottom surface 1531 can play a flow guiding role, and the exhaust opening 1522 is arranged inclined upward and rearward. The two lateral surfaces 1532 are respectively connected to the left and right ends of the lower bottom surface 1531. In this embodiment, the two lateral surfaces 1532 are integrally formed upward and outward inclined or curved from the left and right ends of the lower bottom surface 1531, so that the two lateral surfaces 1532 form an inverted "8" shape, so that the two lateral surfaces 1532 can play a flow guiding role, and the diameter of the exhaust opening 1522 gradually increases from bottom to top.

[0034] Reference Figures 2-4 Further, a flow dividing surface 1533 extending upward is fixed at the rear end of the exhaust opening 1522, so as to facilitate reduction of mutual interference between combustion fumes at the air outlet 144 and cooking fumes, to avoid smoke conflict, turbulence or backflow phenomenon. Specifically, the flow dividing surface 1533 is fixedly connected to the rear end of the lower bottom surface 1531 of the exhaust opening 1522, and the left and right ends of the flow dividing surface 1533 are respectively fixedly connected to the rear ends of the two lateral surfaces 1532 of the exhaust opening 1522. In this embodiment, the flow dividing surface 1533 is integrally formed with the lower bottom surface 1531 and the two lateral surfaces 1532.

[0035] Further, at least one flow separation portion 1534 extending upward is arranged on the top 1533 of the flow separation surface, which is used to separate the smoke outlet 123 of the gas oven 1 into a front-in smoke outlet and a rear-in smoke outlet. The front-in smoke outlet is connected to the cooking cavity 121 through the gas outlet 144, and the rear-in smoke outlet is directly connected to the smoke blocking cavity 122, so as to realize the flow separation of the smoke in the cooking cavity 121 and the smoke blocking cavity 122 at the smoke inlet, thereby avoiding the conflict, turbulence or backflow of the smoke.

[0036] Embodiment 2

[0037] With reference to Figures 1-2 The embodiment provides a gas oven, which comprises a shell assembly 11, an inner container assembly 12, a combustion device (not shown in the figure), a baking tray device 14 and a smoke blocking cover as described in Embodiment 1. The inner container assembly 12 is arranged in the shell assembly 11, and the inner container assembly 12 is provided with a cavity opening forward. At least one smoke outlet 123 is arranged on the top or upper end of the back of the inner container assembly 12. The smoke blocking cover 15 is arranged in the cavity and connected to the top of the inner container assembly 12 at the upper end. The rear end of the lower flow guide section 151 of the smoke blocking cover 15 is connected to the back of the inner container assembly 12, and the left and right ends of the smoke blocking cover 15 are respectively abutted against or connected to the left and right side walls of the inner container assembly 12. The smoke blocking cover 15 divides the cavity 1202 into the cooking cavity 121 and the smoke blocking cavity 122 arranged in front of and behind each other. The smoke blocking cavity 122 is connected to the at least one smoke outlet 123, so that the cooking oil in the smoke blocking cavity 122 can be timely discharged upward through the smoke outlet 123. The cooking cavity 121 is connected to the cooking cavity 121 or the smoke outlet 123 through the gas outlet 1522, so that the combustion smoke in the cooking cavity 121 can be discharged from the gas outlet 1522.

[0038] Supporting portions (not shown in the figure) are arranged on the left and right side walls of the cooking cavity 121, which are configured to reliably support the baking tray device 14. The door body assembly 17 is rotationally connected to the inner container assembly 12, which is used to open or close the cooking cavity 121 of the inner container assembly 12. The combustion device is arranged on the inner container assembly 12, and the smoke outlet end of the combustion device is connected to the cooking cavity 121, which is used to provide combustion smoke for the cooking cavity 121. The baking tray device 14 is detachably arranged in the cooking cavity 121 and abuts against the supporting portions on the left and right side walls of the cooking cavity 121. The baking tray device 14 is provided with a closed cooking space 143 and a gas outlet 144. The free end of the gas outlet 144 extends into the mounting port 1521, and the cooking space 143 is connected to the smoke blocking cavity 122 through the gas outlet 144.

[0039] When the combustion device works to generate combustion flue gas, which fills the entire cooking cavity 121 to heat the grill plate device, the condensed flue gas and the exhaust gas generated during combustion will pass through the exhaust port 1522 at the top rear of the cooking cavity, and then be discharged upward from the smoke exhaust port 123; while the cooking oil fume and oil gas generated by cooking food enter the smoke blocking cavity 121 through the air outlet 144 of the grill plate device 14, and then continue to enter the smoke exhaust port 123 upward. As can be seen, on the one hand, the combustion flue gas is prevented from contacting the food in the grill plate device 14, reducing the generation of harmful substances in the food, and on the other hand, the cooking cavity 121 and the combustion device are both isolated from the cooking oil fume, avoiding the oil and oil droplets generated during the cooking process from splashing into the cooking cavity 121 and the combustion device, avoiding the risk of fire caused by red fire, insufficient combustion and oil accumulation, and making the cooking cavity 121 easier to clean.

[0040] In addition, since the lower flow guide section 151 is arranged obliquely upward and rearward and connected to the back of the inner container assembly 12, on the one hand, after the combustion flue gas rises at the rear of the cooking cavity 121, it is refracted after passing through the lower flow guide section 151 of the smoke cover 15, and then flows toward the grill plate device 14 to heat the food in the grill plate device 14, and on the other hand, when the cooking flue gas generated by heating the food in the grill plate device 14 flows into the smoke blocking cavity 122 through the air outlet 144, it will be refracted and flow obliquely upward when passing through the lower flow guide section 151, which coincides with the smoke exhaust flow path, thereby improving the smoke exhaust efficiency. If there is no lower flow guide section 151 arranged obliquely upward and rearward, the cooking flue gas in the grill plate device 14 will directly contact the back of the inner container assembly 12 after entering the smoke blocking cavity 122 through the air outlet, and then be reflected back. The reflected air flow will interfere with and affect each other with the air flow entering the smoke blocking cavity from behind the air outlet 144, which will hinder the exhaust efficiency of the cooking oil fume, and ultimately result in ineffective exhaust of the oil fume, causing the oil fume to move outwardly in the cooking cavity 121 to pollute the inner container assembly 12 or the combustion device.

[0041] Reference Figures 1-2The combustion device includes two oven burners 13, which are respectively disposed on the upper and lower sides of the inner liner assembly 12. The smoke outlet of the oven burners 13 is connected to the cooking cavity 121, thus forming a "bottom + top combined combustion system". Compared with existing electric ovens, it reduces complex components such as electric heating elements, power boards, and control boards, simplifies the heating system of oven module 1, has a simple structure, and uses gas as the heat source for food cooking. Gas has a high calorific value and faster heating speed, which is beneficial to improving cooking efficiency. In this embodiment, a lower combustion chamber 115 is formed between the oven bottom plate of the outer shell assembly 11 and the bottom of the inner liner assembly 12. Multiple bottom smoke inlets 124 are opened at the bottom of the inner liner assembly 12, and the cooking cavity 121 and the lower combustion chamber 115 are connected through the multiple bottom smoke inlets 124. A top mounting port connected to the cooking cavity 121 is opened at the top of the inner liner assembly 12. One oven burner 13 is installed at the top mounting port and its smoke outlet is connected to the cooking cavity. The other is installed in the lower combustion chamber 115 and the combustion smoke generated by it flows into the cooking cavity through the bottom smoke inlet 124.

[0042] refer to Figures 2-3 The top of the diversion surface 1533 of the smoke baffle 15 abuts against the top of the inner liner assembly 12, and the diversion surface 1533 divides the lower end face of at least one exhaust port 123 into front and rear parts. The front part is connected to the cooking cavity 121 through the exhaust port 1522, and the rear part is connected to the smoke baffle cavity 122. In addition, a diversion part 1534 is provided at the top of the diversion surface 1533 corresponding to the position of the exhaust port 123, extending upward. The diversion part 1534 extends into the exhaust port 123 and divides the exhaust port 123 into a front exhaust port and a rear exhaust port. The front exhaust port is connected to the cooking cavity 121 through the exhaust port 1522, and the rear exhaust port is directly connected to the smoke baffle cavity 122. In this way, the smoke from the cooking cavity 121 and the smoke baffle cavity 122 can be diverted within the exhaust port 123 to avoid smoke collision, turbulence, or backflow.

[0043] refer to Figures 1-2 Furthermore, the gas oven also includes a smoke exhaust device 16. The smoke exhaust device 16 is located at the top of the inner cavity assembly 12 corresponding to the smoke exhaust port 123. The two ends of the smoke exhaust device 16 are respectively connected to the smoke exhaust port 123 and the outside atmosphere, thereby facilitating the centralized discharge of fumes through the smoke exhaust device 16. Specifically, the smoke exhaust device 16 includes a smoke exhaust hood 161 and a fixed bracket 162. The smoke exhaust hood is fixedly installed on the top of the inner cavity assembly 12 via the fixed bracket, and the lower end of the smoke exhaust hood covers the periphery of the corresponding smoke exhaust port 123 and is connected to the corresponding smoke exhaust port 123.

[0044] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A smoke shield, characterized in that, include: The upper smoke-blocking section (152) has an exhaust port (1522) and an installation port (1521) respectively opened at its upper and lower ends; and The lower guide section (151) is located behind the upper smoke-blocking section (152), and its front end is connected to the bottom of the upper smoke-blocking section (152).

2. A smoke shield according to claim 1, characterized in that, The lower guide section (151) and the upper smoke-blocking section (152) are set at an acute angle.

3. A smoke shield according to claim 2, characterized in that, The upper smoke-blocking section (152) is arranged vertically, the lower guide section (151) is arranged inclined to the rear and upward, and the lower guide section (151) and the upper smoke-blocking section (152) are integrally formed.

4. A smoke shield according to any one of claims 1-3, characterized in that, The rear end of the lower guide section (151) is arranged higher than the upper edge of the mounting port (1521).

5. A smoke shield according to claim 1, characterized in that, An annular flange (1523) extending rearward is integrally formed around the periphery of the mounting port (1521); the exhaust port (1522) is arranged obliquely upward and rearward, and / or the diameter of the exhaust port (1522) gradually increases from bottom to top.

6. A smoke shield according to claim 5, characterized in that, The exhaust port (1522) includes a bottom surface (1531) and two side surfaces (1532). The bottom surface (1531) is arranged at an angle to the rear and upward, and the two side surfaces (1532) are respectively connected to the left and right ends of the bottom surface (1531).

7. A smoke shield according to any one of claims 1-3 or 5-6, characterized in that, An upwardly extending diversion surface (1533) is fixed at the rear end of the exhaust port (1522).

8. A smoke shield according to claim 7, characterized in that, At least one upwardly extending branch (1534) is provided on the top of the branching surface (1533).

9. A gas-fired oven, characterized in that, include: The inner liner assembly (12) has a cavity with a front opening, and at least one exhaust port (123) is provided at the top or upper back of the inner liner assembly (12). A smoke shield as described in any one of claims 1-8, wherein the smoke shield is disposed in the cavity and its upper end is connected to the top of the inner liner assembly (12), and its rear end is connected to the back of the inner liner assembly (12), the smoke shield divides the cavity into a cooking cavity (121) and a smoke shield cavity (122), the smoke shield cavity (122) is connected to at least one of the exhaust ports (123), and the cooking cavity (121) is connected to the cooking cavity (121) or the exhaust port (123) through the exhaust port (1522); A combustion device is disposed on the inner liner assembly (12), and the smoke outlet of the combustion device is connected to the cooking cavity (121); and A baking pan device (14) is placed inside the cooking cavity (121) and has a cooking space (143) and an air vent (144). The air vent (144) extends into the mounting port (1521), and the cooking space (143) is connected to the smoke-proof cavity (122) through the air vent (144).

10. A gas-fired oven according to claim 9, characterized in that, An upwardly extending diversion surface (1533) is fixed at the rear end of the exhaust port (1522). The top of the diversion surface (1533) abuts against the top of the inner liner assembly (12), and the diversion surface (1533) divides the lower end face of at least one of the smoke vents (123) into front and rear parts. The front part is connected to the cooking cavity (121) through the exhaust port (1522), and the rear part is connected to the smoke baffle cavity (122).

11. A gas-fired oven according to claim 10, characterized in that, A diversion section (1534) extending upward is provided at the top of the diversion surface (1533) corresponding to the position of the exhaust port (123). The diversion section (1534) extends into the exhaust port (123) and divides the exhaust port (123) into a front exhaust port and a rear exhaust port.

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