Hot air assembly and cooking equipment

Abstract

The utility model provides a hot air assembly and cooking equipment, the hot air assembly comprises a hot air chamber, and a fan is arranged in the hot air chamber; an opening is formed in the side face of the hot air chamber, a baffle is arranged in the opening, an air outlet is formed in the top of the baffle, and an air inlet is formed in the bottom of the baffle. The cooking equipment comprises a shell and a heating inner container arranged in the shell, a heating cavity is formed in the heating inner container, and a heating element is arranged at the top of the heating cavity; the side wall of the heating inner container protrudes outwards to form the hot air chamber. The baffle is arranged between the hot air chamber and the heating cavity. According to the hot air assembly and the cooking equipment, the heating efficiency can be improved, the service life of the fan is prolonged, and the complexity and the size of a system are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, and particularly relates to a hot air assembly and a cooking device. Background Art

[0002] In modern family life, an oven is a common kitchen appliance and is widely used for baking, roasting, and cooking various foods. In the existing oven structure, heating tubes are usually arranged at the top to heat the air inside the oven. This method can evenly distribute heat inside the oven, thus achieving the purpose of baking or roasting. In addition, some ovens are designed with a side hot air circulation system. Through the coordinated operation of a fan and a heating element, the heated air is circulated to all corners inside the appliance. This method can ensure that all parts of the appliance are evenly heated, thereby improving the use efficiency and effect of the appliance.

[0003] However, the above existing technologies have the following problems: To perform hot air baking or air frying well, the heat exchange rate is the primary key. The hot air speed and hot air temperature affect the heat exchange efficiency. The current hot air methods all arrange hot air fan blades beside the heating tubes, so that the heat of the heating tubes can be quickly taken away. In fact, this is only effective in the heating-up stage. During the cooking process, most of the time we require a constant temperature process. At the same time, the heating tubes also work intermittently, and the heating tubes are too close to the fan blades, resulting in a relatively high temperature rise of the fan blade motor. Furthermore, more heat insulation and heat dissipation treatments need to be carried out on the hot air assembly, increasing the complexity and volume of the entire system.

[0004] Therefore, an improved technical solution is needed to address the deficiencies of the above existing technologies. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a hot air assembly, which can improve the heating efficiency, extend the service life of the fan, and reduce the complexity and volume of the system.

[0006] Another purpose of the utility model is to provide a cooking device, which includes the above hot air assembly, and can improve the heating efficiency, extend the service life of the fan, and reduce the complexity and volume of the system.

[0007] To achieve the above purposes, the utility model provides the following technical solutions:

[0008] A hot air assembly includes a hot air chamber, and a fan is arranged inside the hot air chamber; an opening is arranged on the side of the hot air chamber, a baffle is arranged inside the opening, an air outlet is arranged at the top of the baffle, and an air inlet is arranged at the bottom of the baffle.

[0009] According to an embodiment of the utility model, the fan is a cross-flow fan.

[0010] According to an embodiment of the present utility model, the included angle between the direction of the air outlet and the horizontal direction is 30 - 60°.

[0011] According to an embodiment of the present utility model, the included angle between the direction of the air outlet and the horizontal direction is 45°.

[0012] According to an embodiment of the present utility model, a plurality of transverse ribs are provided on the outer side of the baffle, and the air outlet is arranged in a strip shape along the ribs;

[0013] And / or, the blower includes a motor and a wind wheel, the wind wheel is located inside the hot air chamber, and the motor is located outside the hot air chamber.

[0014] The present utility model also provides a cooking device, including the above-mentioned hot air assembly.

[0015] According to an embodiment of the present utility model, the cooking device includes a housing and a heating inner container arranged in the housing, a heating cavity is provided in the heating inner container, and a heating element is provided at the top of the heating cavity; a hot air chamber is formed by the side wall of the heating inner container bulging outwards; the baffle is arranged between the hot air chamber and the heating cavity.

[0016] According to an embodiment of the present utility model, the direction of the air outlet faces the heating element.

[0017] According to an embodiment of the present utility model, a heating element is also provided at the bottom of the heating cavity.

[0018] According to an embodiment of the present utility model, the cooking device further includes a box body, the housing is arranged in the box body, an air inlet is provided at the bottom of the box body, and an exhaust port is provided at the top of the box body.

[0019] Compared with the prior art, the advantages and beneficial effects of the embodiments of the present utility model are as follows:

[0020] The hot air assembly and cooking device provided by the embodiments of the present utility model layout heating elements at the top of the heating cavity and at the same time layout a hot air chamber on the side that does not have heating elements but only has a blower. When the cooking device starts the hot air mode, the heating elements at the top of the heating cavity and the blower on the side work together to form a hot air circulation, thereby improving the heating efficiency and use effect of the cooking device. In addition, for the hot air assembly and cooking device provided by the embodiments of the present utility model, the heating elements are separated from the motor and fan blades of the blower, reducing the temperature rise of the motor and fan blades and improving the service life of the motor and fan blades, that is, improving the service life of the blower. At the same time, since the heating elements are separated from the motor and fan blades of the blower, heat insulation and heat dissipation measures can be reduced, the system thickness and complexity can be reduced, the volume ratio of the whole machine can be increased, the space utilization rate can be improved, and the space occupation can be reduced. In addition, the present utility model designs the heating elements inside the heating cavity, which can achieve faster temperature rise. Combined with the blower system, it can not only meet the rapid temperature rise but also make the blower system thinner and lighter, reducing costs. Finally, when the blower in the hot air chamber does not work, it is a pure baking mode, which can reduce the cooperative work of the blower and heating elements, thereby reducing the noise and energy consumption of the electrical appliance and improving the economy and environmental protection of the electrical appliance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The schematic diagrams in the specification accompanying the present utility model, which form a part of the present utility model, are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. Among them:

[0022] Figure 1 is a schematic installation structure diagram of the hot air assembly provided by the embodiments of the present utility model;

[0023] Figure 2 is an assembly schematic diagram of the hot air assembly provided by the embodiments of the present utility model;

[0024] Figure 3 is a longitudinal sectional schematic diagram of the hot air assembly provided by the embodiments of the present utility model;

[0025] Figure 4 is a transverse sectional schematic diagram of the hot air assembly provided by the embodiments of the present utility model;

[0026] Figure 5 is a schematic structure diagram of the cooking device provided by the embodiments of the present utility model.

[0027] Description of the reference numerals:

[0028] 1. Heating inner container; 11. Heating chamber; 12. Hot air chamber; 2. Heating element; 3. Fan; 31. Motor; 32. Wind wheel; 4. Baffle; 41. Air outlet; 42. Air inlet; 43. Rib; 5. Outer shell; 51. Door assembly; 6. Box body; 61. Air inlet; 62. Smoke exhaust port; 63. Smoke exhaust fan. Detailed implementation mode

[0029] The present invention will be described in detail below with reference to the drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present invention rather than a limitation of the present invention. In fact, those skilled in the art will clearly understand that modifications and variations can be made to the present invention without departing from the scope or spirit of the present invention. For example, features shown or described as part of one embodiment can be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present invention include such modifications and variations within the scope of the appended claims and their equivalents.

[0030] In the description of the present invention, terms such as "first", "second" and the like do not denote any order, quantity or importance, but are only used to distinguish different components. Terms such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The orientation or positional relationship indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention rather than requiring the present invention to be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention. The terms "connected", "connected", "arranged" used in the present invention should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate component; it can be a wired connection, a radio connection, or a wireless communication signal connection. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] As Figure 1 、 Figure 2 shown, an embodiment of the present invention provides a hot air assembly, including a hot air chamber 12. A fan 3 is provided in the hot air chamber 12. An opening is provided on the side of the hot air chamber 12. A baffle 4 is provided in the opening. An air outlet 41 is provided at the top of the baffle 4. An air inlet 42 is provided at the bottom of the baffle 4. The air outlet side of the fan 3 faces the air outlet 41, so as to facilitate the air to blow from the hot air chamber 12 into the heating chamber 11 in the heating inner container 1 of the cooking device.

[0032] Refer toFigure 1 , Figure 2 As shown in the figure, when the hot air assembly provided by the embodiment of the present utility model is installed and operated, the hot air chamber 12 is arranged on the side wall of the heating inner container 1 of the cooking device, for example, the left side wall, and the baffle 4 is arranged between the hot air chamber 12 and the heating cavity 11 of the heating inner container 1 of the cooking device. When the hot air function is started, the heating element 2 at the top of the heating cavity 11 and the fan 3 in the left hot air chamber 12 will work together. When the fan 3 works, the rotation of the fan blades drives the air in the hot air chamber 12 to accelerate, and finally enters the heating cavity 11 through the air outlet 41 at the top of the baffle 4. After being heated by the heating element 2 at the top of the heating cavity 11, it becomes high-speed hot air. The high-speed hot air hits the right wall surface of the heating cavity 11 and flows to the left, and an air inlet 42 is provided in the bottom area of the baffle 4. The reflux hot air enters the left hot air chamber 12 again for acceleration, so as to form a cycle and continue to circulate continuously. The hot air assembly provided by the embodiment of the present utility model arranges a hot air chamber 12 without a heating element and only provided with a fan 3 on the side of the heating cavity 11 of the cooking device, and at the same time arranges a heating element 2 on the top of the heating cavity 11, so that when the cooking device starts the hot air mode, the heating element 2 at the top of the heating cavity 11 and the fan 3 on the side work together to form a hot air cycle, thereby improving the heating efficiency and use effect of the cooking device. In addition, for the hot air assembly provided by the embodiment of the present utility model, the motor and fan blades of the fan 3 are separated from the heating element 2, reducing the temperature rise of the motor and fan blades, and improving the service life of the motor and fan blades, that is, improving the service life of the fan 3. At the same time, since the heating element 2 is separated from the motor and fan blades of the fan 3, the heat insulation and heat dissipation measures of the cooking device can be reduced, the system thickness and complexity can be reduced, the volume ratio of the whole machine can be improved, the space utilization rate can be improved, and the space occupation can be reduced.

[0033] In a preferred embodiment of the present utility model, the fan 3 includes a motor 31 and a wind wheel 32. The wind wheel 32 is located inside the hot air chamber 12, and the motor 31 is located outside the hot air chamber 12. In this embodiment, the motor 31 is further away from the heating element 2, and due to the barrier of the outer wall of the hot air chamber 12, the temperature rise of the motor 31 of the fan 3 is greatly reduced, and the service life of the motor 31 is prolonged.

[0034] As Figure 2 , Figure 3 , Figure 4 As shown in the figure, in an embodiment of the present utility model, the fan 3 is a cross-flow fan, including a motor 31 and a wind wheel 32. In this embodiment, due to the adoption of a cross-flow fan, the installation of the motor 31 is changed from axial installation to radial installation (that is, the axis of the motor 31 is parallel to the baffle 4), reducing the installation thickness, saving the installation space, and improving the space utilization rate of the cooking device. Fixing holes are designed on the front and left sides of the hot air chamber 12, and the cross-flow fan is installed on the inner wall surface of the hot air chamber 12 through these fixing holes.

[0035] As Figure 2 shown, in an embodiment of the present utility model, a plurality of transverse ribs 43 are provided on the outer side of the baffle 4 (the side facing the heating chamber 11). The ribs 43 can be formed by a pressing process, and the air outlet 41 is arranged in a strip shape along the ribs 43.

[0036] The present utility model also provides a cooking device, including the above-mentioned hot air assembly.

[0037] As Figure 1 、 Figure 5 shown, in an embodiment of the present utility model, the cooking device includes a housing 5 and a heating inner container 1 provided in the housing 5. The heating inner container 1 is a component for heating food in the cooking device (such as an oven, a steam oven, etc.). A heating chamber 11 is provided in the heating inner container 1, and a heating element 2, such as a heating tube, is provided at the top of the heating chamber 11. The side wall of the heating inner container 1 bulges outwards to form the above-mentioned hot air chamber 12. In this embodiment, it is described by taking the left side of the heating inner container 1 as an example, and it can also be provided on the right side of the heating inner container 1, without limitation. The baffle 4 is provided between the hot air chamber 12 and the heating chamber 11 to separate the two. The housing 5 can be provided with a door assembly 51 for taking and placing food.

[0038] The cooking device provided by the embodiment of the present utility model, in addition to having the advantages brought by the above-mentioned hot air assembly, designs the heating element 2 inside the heating chamber 11, which can achieve faster temperature rise. Combined with the fan system, it can not only meet the rapid temperature rise but also realize the thin and light design of the fan system, reducing costs. In addition, when the fan 3 in the hot air chamber 12 does not work, it is a pure baking mode, which can reduce the cooperative work of the fan 3 and the heating element 2, thereby reducing the noise and energy consumption of the electrical appliance and improving the economy and environmental protection of the electrical appliance.

[0039] In a preferred embodiment of the present utility model, the direction of the air outlet 41 of the baffle 4 faces the heating element 2. This can make the air blown out from the hot air chamber 12 directly blow onto the heating element 2 at the top of the heating chamber 11, exchange heat well with the heating element 2, improve the heat exchange efficiency, and make the temperature in the heating chamber 11 rise rapidly. Further, the angle between the direction of the air outlet 41 and the horizontal direction is 30 - 60°. Since part of the hot air will flow upwards through the outer side of the baffle 4, in order to reduce the air resistance at the air outlet 41, the angle between the direction of the air outlet 41 and the horizontal direction is 45°.

[0040] In order to further improve the heating efficiency and the temperature rise rate inside the heating chamber 11, in an embodiment of the present utility model, a heating element, such as a heating pipe or a burner, is also provided at the bottom of the heating chamber 11. In this way, the air blown out from the hot air chamber 12 is heated by the heating element 2 at the top of the heating chamber 11 and then reheated at the bottom of the heating chamber 11 and circulated back into the hot air chamber 12. Each cycle undergoes two heating processes, greatly improving the heating efficiency and the temperature rise rate inside the heating chamber 11.

[0041] As Figure 5 shown, in an embodiment of the present utility model, the cooking device further includes a box body 6, the outer shell 5 is disposed in the box body 6, an air inlet 61 is provided at the bottom of the box body 6, and an exhaust port 62 is provided at the top of the box body 6. A smoke exhaust fan 63 may be provided in the exhaust port 62 to discharge the smoke generated during the cooking process to the outside.

[0042] The cooking device provided by the present utility model further includes other necessary heat preservation components, electric control components, smoke machine components, etc., which are prior arts and will not be elaborated herein.

[0043] The cooking device provided by the embodiment of the present utility model adopts a split hot air component. The fan system is far away from the heating element. Compared with the traditional hot air component with a built-in heating pipe, its system temperature rise is lower, the motor is safer. At the same time, it can reduce the system complexity, reduce the system thickness, and improve the space utilization rate. During the operation, since only the side fan can be enabled and the top heating element is not enabled, the noise generated by the cooperation of the fan and the heating element can be effectively reduced, improving the user experience. At the same time, since the long-term use of the heating element is reduced, the energy consumption of the electrical appliance can be reduced, the heating pipes on other planes can be shared, the device utilization rate can be improved, the work can be reasonably distributed, and the cost can be reduced. When traditional barbecue is needed, the fan system is not started, and only the upper and lower roasting pipes need to be turned on.

[0044] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, various modifications and changes can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A hot air component, characterized in that, It includes a hot air chamber (12), and a blower (3) is provided inside the hot air chamber (12); an opening is provided on the side of the hot air chamber (12), a baffle (4) is provided in the opening, an air outlet (41) is provided at the top of the baffle (4), and an air inlet (42) is provided at the bottom of the baffle (4).

2. The hot air assembly according to claim 1, characterized in that, The blower (3) is a cross-flow blower.

3. The hot air assembly according to claim 2, wherein, The included angle between the direction of the air outlet (41) and the horizontal direction is 30 - 60°.

4. The hot air assembly according to claim 3, characterized in that, The included angle between the direction of the air outlet (41) and the horizontal direction is 45°.

5. The hot air assembly according to any one of claims 1 to 4, characterized in that, A plurality of transverse convex ribs (43) are provided on the outer side of the baffle (4), and the air outlet (41) is arranged in a strip shape along the convex ribs (43); and / or, the blower (3) includes a motor (31) and a wind wheel (32), the wind wheel (32) is located inside the hot air chamber (12), and the motor (31) is located outside the hot air chamber (12).

6. A cooking device, characterized in that, It includes a hot air assembly according to any one of claims 1 to 5.

7. The cooking device according to claim 6, characterized in that, The cooking device includes a housing (5) and a heating inner container (1) provided inside the housing (5), a heating cavity (11) is provided inside the heating inner container (1), and a heating element (2) is provided at the top of the heating cavity (11); a hot air chamber (12) is formed by the side wall of the heating inner container (1) bulging outwards; the baffle (4) is provided between the hot air chamber (12) and the heating cavity (11).

8. The cooking device according to claim 7, characterized in that, The direction of the air outlet (41) faces the heating element (2).

9. The cooking device according to claim 7, characterized in that, A heating element is also provided at the bottom of the heating cavity (11).

10. The cooking device according to any one of claims 7 to 9, characterized in that, It further includes a box body (6), the housing (5) is provided in the box body (6), an air inlet (61) is provided at the bottom of the box body (6), and an exhaust port (62) is provided at the top of the box body (6).

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