Hot air component and microwave oven

Abstract

The utility model relates to the technical field of household appliances, in particular to a hot air component and a microwave oven. The hot air component comprises a cover plate, a shield plate and a hot air assembly. The cover plate is connected to the cover plate, and a hot air cavity is defined by the cover plate and the cover plate. A plurality of inclined air outlet faces and a plurality of connecting faces are formed on the cover plate, the inclined air outlet faces are connected with the connecting faces, the inclined air outlet faces and the connecting faces are arranged in a staggered mode, and the inclined air outlet faces and the connecting faces are located in the hot air cavity and surround the hot air cavity. Each inclined air outlet face is provided with a set of air outlet holes, and any two adjacent sets of air outlet holes are separated through a connecting face. The hot air assembly is arranged in the hot air cavity, and the air outlet face of the hot air assembly faces the inclined air outlet face. According to the air conditioner, the air outlet uniformity of the hot air component can be improved, meanwhile, the overall structural stability is improved, and the hot air component is prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a hot air component and a microwave oven. Background Technology

[0002] Existing electric cooking appliances such as microwave ovens and electric ovens typically incorporate a hot air structure inside the device to aid in cooking. However, in these technologies, the hot air structure is susceptible to vibration or internal thermal stress, making it more prone to deformation, reducing its structural strength, and increasing the likelihood of damage that could impair its normal function. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a hot air component and a microwave oven that can improve the uniformity of airflow from the hot air component, enhance the overall structural stability, prevent damage to the hot air component, and ensure airflow performance.

[0004] To solve the above-mentioned technical problems, this utility model provides a hot air component, comprising:

[0005] Cover plate;

[0006] A cover plate is connected to the cover plate, and the cover plate and the cover plate enclose a hot air cavity;

[0007] The cover plate has multiple inclined air outlet surfaces and multiple connecting surfaces. The inclined air outlet surfaces are connected to the connecting surfaces, and the inclined air outlet surfaces and the connecting surfaces are arranged alternately. The inclined air outlet surfaces and the connecting surfaces are both located inside the hot air cavity and surround the hot air cavity.

[0008] Each of the inclined air outlet surfaces is provided with a set of air outlet holes, and any two adjacent sets of air outlet holes are separated by the connecting surface.

[0009] A hot air assembly is disposed in the hot air chamber, with the air outlet surface of the hot air assembly facing the inclined air outlet surface.

[0010] As an improvement to the above solution, the inclined air outlet surface is a plane, and the inclined air outlet surface is inclined in a direction away from the hot air component; the connecting surface is an arc surface.

[0011] As an improvement to the above solution, the inclined air outlet surface forms a preset angle, which is 10°-30°.

[0012] As an improvement to the above solution, the cover plate is formed with a first groove facing the cover plate, the first groove and the cover plate enclose the hot air cavity, and the side of the groove forms the inclined air outlet surface and the connecting surface;

[0013] And / or, the cover plate is formed with a second groove facing the cover plate, the second groove and the cover plate enclosing the hot air cavity, and the second groove facing the inclined air outlet surface.

[0014] As an improvement to the above solution, the hot air assembly includes a heating element and an air supply element. The air supply element is rotatably disposed at the center of the hot air cavity, the heating element surrounds the air supply element, and the heating element is located between the air supply element and the inclined air outlet surface.

[0015] As an improvement to the above solution, the inner diameter of the heating element is larger than the rotation diameter of the air supply component.

[0016] As an improvement to the above solution, a heat insulation plate is connected to the side of the cover plate facing the cover plate, and the cover plate is located on the side of the heat insulation plate away from the hot air assembly.

[0017] As an improvement to the above solution, a heat insulation pad is provided between the heat insulation plate and the cover plate.

[0018] As an improvement to the above solution, a driving component is provided on the side of the cover plate away from the cover plate, and the rotating shaft of the driving component is rotatably connected to the hot air assembly.

[0019] Accordingly, this utility model also provides a microwave oven, including a housing and a hot air component as described in any one of the above, wherein the hot air component is disposed on the top wall of the housing, a cooking cavity is formed inside the housing, and the air outlet communicates with the cooking cavity.

[0020] Implementing this utility model has the following beneficial effects:

[0021] In this embodiment, the hot air component surrounds the hot air cavity with multiple inclined air outlet surfaces and arranges a set of air outlet holes on each inclined air outlet surface, so that the hot air generated in the hot air cavity by the hot air component can be discharged from multiple directions of the cover plate, thereby improving the uniformity of the hot air output of the hot air component.

[0022] Meanwhile, since any two adjacent sets of air outlets are separated by a connecting surface, there will be no densely arranged air outlets on the entire panel. This increases the local structural thickness and support points of the panel, improves the panel's ability to disperse thermal stress, thereby improving the overall structural stability of the panel, preventing damage caused by hot air, and ensuring the air outlet performance of the panel. Attached Figure Description

[0023] Figure 1 This is a front view structural schematic diagram of the hot air component in one embodiment of the present invention;

[0024] Figure 2 This is an exploded structural diagram of the hot air component in one embodiment of the present invention;

[0025] Figure 3 This is a three-dimensional structural diagram of the cover plate in one embodiment of the present invention;

[0026] Figure 4 yes Figure 3 Enlarged structural diagram at point A;

[0027] Figure 5 This is a three-dimensional structural diagram of the hot air assembly in one embodiment of the present invention;

[0028] Figure 6 This is an exploded structural diagram of a microwave oven according to one embodiment of the present invention. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0030] The hot air component of this invention can be arranged inside the shell 6 of a microwave oven or other cooking appliance to assist in cooking food and fulfill the basic functions of a hot air component. Furthermore, it improves the uniformity of airflow from the hot air component, enhances the overall structural stability, prevents damage to the hot air component, and ensures optimal airflow performance.

[0031] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the hot air component includes a cover plate 1, a shield plate 2, and a hot air assembly 3. The shield plate 2 is connected to the cover plate 1, and the shield plate 2 and the cover plate 1 enclose a hot air cavity 201. The shield plate 2 has multiple inclined air outlet surfaces 21 and multiple connecting surfaces 22. The inclined air outlet surfaces 21 and the connecting surfaces 22 are connected and are arranged alternately. The inclined air outlet surfaces 21 and the connecting surfaces 22 are all located within the hot air cavity 201 and surround the hot air cavity 201. Each inclined air outlet surface 21 is provided with a set of air outlet holes 211, and any two adjacent sets of air outlet holes 211 are separated by the connecting surfaces 22. The hot air assembly 3 is disposed in the hot air cavity 201, and the air outlet surface of the hot air assembly 3 faces the inclined air outlet surface 21.

[0032] In this embodiment, the hot air component surrounds the hot air cavity 201 with multiple inclined air outlet surfaces 21 and arranges a set of air outlet holes 211 on each inclined air outlet surface 21, so that the hot air generated by the hot air component 3 in the hot air cavity 201 can be discharged from multiple directions of the cover plate 2, thereby improving the uniformity of the hot air output of the hot air component.

[0033] Meanwhile, since any two adjacent sets of air outlets 211 are separated by the connecting surface 22, there will be no densely arranged air outlets 211 on the entire plate 2. This can increase the local structural thickness and support points of the plate 2, improve the ability of the plate 2 to disperse thermal stress, thereby improving the overall structural stability of the plate 2, preventing damage caused by hot air, and thus ensuring the air outlet performance of the plate 2.

[0034] It should be noted that the number of air outlets 211 in each group of air outlets 211 is the same to ensure that the air outlet area of ​​each inclined air outlet surface 21 is the same, thereby further improving the air outlet uniformity of the hot air component.

[0035] It should also be noted that the cover plate 2 and the cover plate 1 are detachably connected by fasteners such as bolts, studs, or clips to ensure the structural stability of the heating component. The threaded holes of the cover plate 2 and the cover plate 1 are located outside the hot air cavity 201 to prevent the fasteners from being exposed in the hot air cavity 201 and affecting the structural strength of the fasteners.

[0036] In some alternative embodiments, such as Figures 2 to 4 As shown, the inclined air outlet surface 21 is flat and tilted away from the hot air assembly 3. This ensures that the hot air outlet range is expanded under the guidance of the inclined air outlet surface 21, allowing the hot air to cover the cooking cavity 61 inside the cooking appliance more extensively and enhancing the heating effect on the food. At the same time, it ensures that the inclined air outlet surface 21 bears the load evenly, avoiding stress concentration. Furthermore, the flat inclined air outlet surface 21 is easy to form, reducing manufacturing defects and further ensuring the structural stability of the inclined air outlet surface 21.

[0037] The connecting surface 22 is an arc surface, so that the two adjacent inclined air outlet surfaces 21 can be transitioned by the arc surface of the connecting surface 22, further avoiding stress concentration in the cover plate 2, thereby improving the overall structural stability of the cover plate 2.

[0038] Furthermore, in order to improve the air outlet effect of the hot air component, ensure rapid coverage of the cooking cavity 61 inside the cooking appliance, and at the same time ensure the overall stability of the cooking appliance, the air outlet surface 21 is tilted to form a preset angle, which is 10°-30°, and the preset angle is preferably 10°.

[0039] In some alternative embodiments, the hot air cavity 201 between the cover plate 2 and the cover plate 1 can be formed in various ways. The following are examples of some possible formation methods:

[0040] The first formation method, such as Figure 3 and Figure 4As shown, the cover plate 2 has a first groove 23 facing the cover plate 1. The first groove 23 and the cover plate 1 enclose a hot air cavity 201, thereby providing space for the hot air assembly 3. The side of the groove forms an inclined air outlet surface 21 and a connecting surface 22, so that a chamber that tapers away from the cover plate 1 is formed in the hot air cavity 201, so as to guide the hot air to flow evenly to the air outlet and improve the hot air delivery efficiency.

[0041] In the second configuration, the cover plate 1 has a second groove (not shown in the figure) facing the cover plate 2. The second groove and the cover plate 2 enclose a hot air cavity 201 to provide space for the hot air assembly 3. Furthermore, the second groove faces the inclined air outlet surface 21, so that the inner wall surface of the second groove can provide a guiding function for the hot air, guiding the hot air to flow evenly to the air outlet.

[0042] In this embodiment, the hot air cavity 201 can be formed by a combination structure in which a first groove 23 is formed in the cover plate 2 and a second groove is formed in the cover plate 1. That is, the hot air cavity 201 is formed by the enclosing of the first groove 23 and the second groove. While providing space for the hot air assembly 3, the overall thickness of the hot air component is effectively reduced, thereby improving the space utilization rate when the hot air component is installed in the microwave oven.

[0043] In a specific example, the overall thickness of the hot air component in an existing microwave oven is 70mm, while in this invention, the overall thickness of the hot air component is reduced to 50mm, effectively reducing the thickness of the hot air component and correspondingly increasing the overall effective volume of the microwave oven.

[0044] It should also be noted that both cover plate 2 and cover plate 1 are made of stainless steel. They can be formed by stamping, hydroforming or welding. The relevant forming technologies are existing technologies and will not be described in detail here.

[0045] In some optional embodiments, to further ensure the uniformity of hot air output within the hot air chamber 201, such as... Figure 2 and Figure 5 As shown, the hot air assembly 3 includes a heating element 31 and an air supply element 32. The air supply element 32 is rotatably disposed at the center of the hot air cavity 201, and the heating element 31 surrounds the air supply element 32, with the heating element 31 located between the air supply element 32 and the inclined air outlet surface 21. The air supply element 32 is preferably a fan. By rotatably disposing of the air supply element 32 at the center of the hot air cavity 201 and surrounding the heating element 31, when hot air is generated by the heating element 31 and the air supply element 32, the hot air can be blown in all directions within the hot air cavity 201, thereby ensuring a uniform airflow within the hot air cavity 201, effectively avoiding areas of localized high or low temperatures, and further ensuring the uniformity of the hot air exiting from the air outlet 211.

[0046] In a preferred embodiment, the heating element 31 is annular.

[0047] In addition, the cover plate 2 can also separate the heating element 31 into the cooking cavity 61 of the microwave oven, realize the internal arrangement of the heating element 31, and make the cooking cavity 61 easier to clean, thus improving the user experience.

[0048] Specifically, such as Figure 5 As shown, the inner diameter of the heating element 31 is larger than the rotation diameter of the air supply element 32 to ensure that a flow gap can be formed between the heating element 31 and the air supply element 32. This avoids the heating element 31 affecting the rotation of the air supply element 32, while ensuring that the air supply element 32 can accelerate the air circulation around the heating element 31, so as to form a hot airflow in the hot air cavity 201 and send the hot airflow out from the air outlet 211 of the inclined air outlet surface 21 so that the hot airflow can heat the food.

[0049] In some alternative embodiments, such as Figure 2 and Figure 6 As shown, a heat insulation plate 41 is connected to the side of the cover plate 2 facing the cover plate 1. The cover plate 1 is located on the side of the heat insulation plate 41 away from the hot air assembly 3. The heat insulation effect of the heat insulation plate 41 is used to prevent the hot air from contacting the cover plate 1 and exchanging heat, thus preventing heat loss to the outside of the hot air assembly and improving the utilization rate of the heat of the heating tube 31. At the same time, the heating tube 31 is insulated from the drive structure outside the cover plate 1 to prevent the air supply component 32 from failing due to overheating of the drive structure.

[0050] Furthermore, such as Figure 2 and Figure 6 As shown, a heat insulation pad 42 is provided between the heat insulation plate 41 and the cover plate 1. The heat insulation pad 42 and the heat insulation plate 41 cooperate to form a double-layer customized heat insulation structure on the top of the hot air component, thereby further improving the heat insulation effect between the cover plate 1 and the hot air cavity 201. The heat insulation pad 42 can be heat insulation cotton, heat insulation silicone or other materials, and can be selected and arranged according to actual needs.

[0051] In this embodiment, as Figure 1 , Figure 2 and Figure 6 As shown, a driving component 5 is provided on the side of the cover plate 1 away from the cover plate 2. The rotating shaft of the driving component 5 is rotatably connected to the hot air assembly 3. Specifically, the rotating shaft of the driving component 5 is rotatably connected to the air supply component 32, so that the driving component 5 drives the air supply component 32 to rotate, thereby driving the air around the heating tube 31 to circulate and form a hot airflow. By setting the driving component 5 on the side of the cover plate 1 away from the cover plate 2, the high temperature of the hot air can also be avoided from affecting the motor.

[0052] Among them, the driving component 5 is preferably a motor, and to facilitate the rotatable connection between the motor shaft and the air supply component 32, such as... Figure 2 and Figure 6As shown, a mounting groove 11 is formed on the side of the cover plate 1 away from the cover plate 2. The motor is fixed to the mounting groove 11 by bolts. The mounting groove 11 has a through hole 12 that communicates with the hot air cavity 201. The motor shaft is inserted into the hot air cavity 201 through the through hole 12 and is rotatably connected to the air supply component 32.

[0053] Of course, in other alternative embodiments, a control circuit board or other driving components 5 can be used to drive the air supply component 32 to rotate, and can be flexibly replaced according to the actual situation.

[0054] More specifically, to further prevent the high temperature inside the hot air cavity 201 from affecting the motor, a mica heat insulation sheet 13 is arranged between the motor and the cover plate 1.

[0055] Accordingly, this utility model also provides a microwave oven, such as Figure 6 As shown, the microwave oven includes a housing 6 and a hot air component as described in any of the above descriptions. The hot air component is disposed on the top wall of the housing 6, and a cooking cavity 61 is formed inside the housing 6. The air outlet 211 communicates with the cooking cavity 61. All the beneficial effects of including the hot air component in the microwave oven will not be elaborated further here. Furthermore, since the hot air component 3 is disposed on the top wall of the housing 6 and communicates with the cooking cavity 61 through the air outlet 211, it can heat the food in the cooking cavity 61 while reducing the space occupied on the side of the housing 6, thereby improving the overall space utilization of the housing 6.

[0056] Furthermore, by placing the hot air component on the top wall of the housing 6, compared to a side-mounted hot air component, the effective volume inside the housing 6 can be increased by 15%, thereby improving the space utilization rate inside the microwave oven.

[0057] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this invention, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A hot air component, characterized in that, include: Cover plate; A cover plate is connected to the cover plate, and the cover plate and the cover plate enclose a hot air cavity; The cover plate has multiple inclined air outlet surfaces and multiple connecting surfaces. The inclined air outlet surfaces are connected to the connecting surfaces, and the inclined air outlet surfaces and the connecting surfaces are arranged alternately. The inclined air outlet surfaces and the connecting surfaces are both located inside the hot air cavity and surround the hot air cavity. Each of the inclined air outlet surfaces is provided with a set of air outlet holes, and any two adjacent sets of air outlet holes are separated by the connecting surface. A hot air assembly is disposed in the hot air chamber, with the air outlet surface of the hot air assembly facing the inclined air outlet surface.

2. The hot air component as claimed in claim 1, characterized in that, The inclined air outlet surface is a plane, and the inclined air outlet surface is inclined away from the hot air assembly; the connecting surface is an arc surface.

3. The hot air component as described in claim 1 or 2, characterized in that, The inclined air outlet surface forms a preset angle, which is 10°-30°.

4. The hot air component as described in claim 1 or 2, characterized in that, The cover plate has a first groove facing the cover plate, the first groove and the cover plate enclose the hot air cavity, and the side of the groove forms the inclined air outlet surface and the connecting surface; And / or, the cover plate is formed with a second groove facing the cover plate, the second groove and the cover plate enclosing the hot air cavity, and the second groove facing the inclined air outlet surface.

5. The hot air component as claimed in claim 1, characterized in that, The hot air assembly includes a heating element and an air supply element. The air supply element is rotatably disposed at the center of the hot air cavity. The heating element surrounds the air supply element and is located between the air supply element and the inclined air outlet surface.

6. The hot air component as described in claim 5, characterized in that, The inner diameter of the heating element is larger than the rotation diameter of the air supply component.

7. The hot air component as claimed in claim 1, characterized in that, A heat insulation plate is connected to the side of the cover plate facing the cover plate, and the cover plate is located on the side of the heat insulation plate away from the hot air assembly.

8. The hot air component as claimed in claim 7, characterized in that, A heat insulation pad is provided between the heat insulation plate and the cover plate.

9. The hot air component as claimed in claim 1, characterized in that, A driving component is provided on the side of the cover plate away from the shield plate, and the rotating shaft of the driving component is rotatably connected to the hot air assembly.

10. A microwave oven, characterized in that, The device includes a housing and a hot air component as described in any one of claims 1 to 9, the hot air component being disposed on the top wall of the housing, a cooking cavity being formed inside the housing, and the air outlet communicating with the cooking cavity.

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