Duct units and ovens

Abstract

The present invention provides an air duct device and an oven, the air duct device comprising: a cavity rear plate; a hot air motor cover, which is arranged on the cavity rear plate, a cavity is formed between the hot air motor cover and the cavity rear plate, an air outlet and an air inlet are arranged on the hot air motor cover, and the air outlet and the air inlet are connected to the cavity; a hot air component, which is arranged on the cavity rear plate and partially located in the cavity, and the hot air component is arranged corresponding to the air outlet and the air inlet; wherein the hot air component comprises a fan blade arranged in the cavity, and the air duct device further comprises a heat-resistant protective member, and the heat-resistant protective member is arranged between the fan blade and the air outlet. In the technical solution of the present invention, by adding a heat-resistant protective member to prevent fingers from touching the fan blade, a higher degree of freedom is provided for the arrangement of the air outlet on the hot air motor cover, which effectively solves the problem of breaking through the bottleneck of uniform cooking effect in a short time, thereby playing a role in improving cooking efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of air duct equipment of ovens, and in particular to an air duct device and an oven. Background Art

[0002] At present, hot air 3D cooking technology is a popular technology in ovens. It uses the combination of hot air heating pipes, fans and hot air motor covers on the back to create a strong convection air duct in the oven cavity. Compared with the natural convection heating function, it is easier to heat food evenly. Among them, the design of the hot air motor cover opening plays a key role in the uniformity of the air duct. A good opening structure represents a good air duct design, which can obviously heat food evenly and has a very good cooking effect. Therefore, the requirements for the freedom of the opening are also very high.

[0003] In the related art, a smaller aperture is usually provided to prevent fingers from being scratched by the fan blades when inserted into the cavity. However, a smaller aperture of the air outlet may reduce the degree of freedom in the arrangement of the air outlet, which may result in poor air duct flow and fail to break through the bottleneck of uniform cooking effect in a short period of time. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] Therefore, an object of the present invention is to provide an air duct device.

[0006] Another object of the present invention is to provide an oven.

[0007] In order to achieve the above-mentioned objectives, an embodiment of the present invention provides an air duct device, which includes: a cavity rear plate; a hot air motor cover, which is arranged on the cavity rear plate, a cavity is formed between the hot air motor cover and the cavity rear plate, and the hot air motor cover is provided with air outlet and air inlet, and the air outlet and air inlet are connected to the cavity; a hot air component, which is arranged on the cavity rear plate and partially located in the cavity, and the hot air component is arranged corresponding to the air outlet and air inlet; wherein the hot air component includes fan blades rotatably arranged in the cavity, and the air duct device also includes a heat-resistant protective member, which is arranged between the fan blades and the air outlet to prevent the fan blades from being touched.

[0008] In this technical solution, since the air duct device is provided with a heat-resistant protective member between the fan blades and the air outlet to prevent fingers from touching the fan blades, the problem of fingers being scratched by touching the fan blades is avoided, thereby improving the safety of the oven. In addition, the present application adds a heat-resistant protective member to prevent fingers from touching the fan blades, so there is no need to set a smaller aperture of the air outlet as in the related art to prevent fingers from reaching into the cavity and touching the fan blades and being scratched, thereby providing a higher degree of freedom for setting the air outlet on the hot air motor cover, that is, when setting the air outlet, there is no need to consider the problem of preventing fingers from reaching in, and the air outlet can be set larger and the position can be set more evenly and reasonably. It effectively solves the problem of breaking through the bottleneck of uniform cooking effect in a short period of time, thereby playing a role in improving cooking efficiency.

[0009] In addition, the air duct device in the above embodiment provided by the present invention may also have the following additional technical features:

[0010] In the above technical solution, the heat-resistant protective member is a heat-resistant metal ring, and the outer circumferential surface and / or end surface of the heat-resistant metal ring is used to block fingers.

[0011] In this technical solution, the heat-resistant metal ring can prevent fingers from being scratched by touching the fan blades, thereby improving the safety of the oven. At the same time, it provides a higher degree of freedom for the setting of the air outlet on the hot air motor cover, effectively solving the problem of breaking through the bottleneck of uniform cooking effect in a short period of time, thereby playing a role in improving cooking efficiency. Moreover, the heat-resistant metal ring has a simple structure, which is convenient for subsequent maintenance and replacement, thereby saving the maintenance cost of the oven and improving the convenience of using the oven. In addition, the heat-resistant metal ring has a heat-resistant function, which can prevent it from being damaged by the heat emitted by the hot air heating pipe, thereby ensuring that the heat-resistant protective part can normally block the fingers to prevent the fingers from being scratched by the fan blades.

[0012] In any of the above technical solutions, the hot air component also includes a hot air heating pipe, which is arranged on the rear plate of the cavity and surrounds the outer periphery of the fan blade, and the hot air heating pipe is connected to the heat-resistant protective component.

[0013] In this technical solution, when the fan blades rotate, the air in the oven cavity forms strong convection with the air in the cavity. The air in the oven cavity enters the cavity through the air inlet, is heated by the hot air heating pipe, and then flows back into the oven cavity from the air outlet. In this way, the air duct device has a hot air function, so that the food can be heated more evenly.

[0014] In any of the above technical solutions, the air duct device also includes a heat-resistant clamping piece, which is connected to the hot air heating pipe, and an installation groove is provided at the end of the heat-resistant clamping piece, and the installation groove is used to install the heat-resistant protective piece.

[0015] In this technical solution, the heat-resistant clamp is installed and fixed to the heat-resistant protective part through the mounting groove, so that the heat-resistant clamp is located between the hot air heating tube and the fan blade, thereby ensuring that the heat-resistant clamp can prevent fingers from touching the fan blade, thereby improving the safety of oven use.

[0016] In any of the above technical solutions, the heat-resistant clamp is provided with a mounting hole, and the hot air heating pipe portion is inserted into the mounting hole.

[0017] In this technical solution, the heat-resistant clamp is connected to the hot air heating pipe by threading, so that the heat-resistant clamp is fixed on the hot air heating pipe, thereby ensuring that the heat-resistant clamp can be used as a fixed support to fix the heat-resistant protective part.

[0018] In any of the above technical solutions, the air duct device includes a plurality of heat-resistant clamping members, and the heat-resistant protective member is installed in the installation grooves of the plurality of heat-resistant clamping members.

[0019] In this technical solution, multiple heat-resistant clamps can simultaneously support and fix the heat-resistant protective part, so that the heat-resistant protective part can be better fixed to the heat-resistant clamps, thereby ensuring that the heat-resistant protective part can prevent fingers from touching the fan blades and being scratched, thereby improving the safety of oven use.

[0020] In any of the above technical solutions, the hot air component also includes a motor, which is connected to the fan blades and is arranged on an end of the cavity rear plate away from the hot air motor cover.

[0021] In this technical solution, the motor serves as a power source and can drive the hot air fan to rotate, thereby ensuring that the air in the oven cavity and the air in the cavity form strong convection, thereby ensuring that the hot air function of the air duct device can be realized.

[0022] In any of the above technical solutions, the hot air motor cover is configured as a hollow protruding structure, and the hot air motor cover includes a connecting bottom plate and a protrusion connected to the connecting bottom plate, and the protrusion protrudes from the connecting bottom plate in a direction away from the cavity rear plate.

[0023] In this technical solution, since the hot air motor cover is a hollow raised structure, when the hot air motor cover is set on the rear plate of the cavity, a cavity can be formed between the hot air motor cover and the rear plate of the cavity, thereby providing installation space for heat-resistant protective parts, fan blades and hot air heating pipes, thereby ensuring that the hot air function of the air duct device can be realized.

[0024] In any of the above technical solutions, the air outlet is located on the outer side of the hot air heating pipe of the hot air assembly, and the air inlet is located on the inner side of the hot air heating pipe.

[0025] In this technical solution, the air inlet is arranged on the inner side of the hot air heating pipe. In this way, the air in the oven cavity enters the inner side of the hot air heating pipe in the cavity through the air inlet, so that the hot air heating pipe can fully heat the air, thereby enabling the oven to heat the food more evenly.

[0026] The technical solution of the second aspect of the present invention provides an oven, comprising: an air duct device as described in any one of the first aspect, wherein the cavity rear plate of the air duct device is one of the multiple side plates, and the hot air motor cover of the air duct device is located in the inner cavity of the oven.

[0027] The oven provided by the technical solution of the second aspect of the present invention includes the air duct device of any one of the technical solutions of the first aspect, and thus has all the beneficial effects of any of the above technical solutions, which will not be repeated here.

[0028] In the above solution, since the oven is integrated with the air duct device, the oven has a hot air function, thereby enhancing the baking function of the oven and satisfying the multi-functional requirements of the oven.

[0029] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0031] Figure 1 A schematic structural diagram of an air duct device according to an embodiment of the present invention is shown;

[0032] Figure 2 Shows Figure 1 A right view of the air duct device in FIG.

[0033] Figure 3 Shows Figure 1 A cross-sectional view of the air duct device at AA;

[0034] Figure 4 A schematic structural diagram of an air duct device according to an embodiment of the present invention is shown (the hot air motor cover is not shown);

[0035] Figure 5 Shows Figure 4 A right side view of the air duct device in FIG. 1 (hot air motor cover is not shown);

[0036] Figure 6 Shows Figure 4 A cross-sectional view of the air duct device BB in FIG. 1 (the hot air motor cover is not shown);

[0037] Figure 7 Shows Figure 1 The assembly relationship diagram of the hot air heating pipe, the heat-resistant clamping part and the heat-resistant protective part;

[0038] Figure 8 Shows Figure 7 The front view of the assembly;

[0039] Fig. 9 Shows Figure 8 A top view of an assembly of

[0040] Fig.10 Shows Figure 1 A front view of the hot air motor cover;

[0041] Fig.11 Shows Fig.10 A cross-sectional view of the hot air motor cover CC in FIG. 1 (the arrows in the figure indicate the air inlet and air outlet directions).

[0042] in, Figures 1 to 11 The corresponding relationship between the reference numerals and the component names is as follows:

[0043] 10. Cavity back plate; 20. Hot air motor cover; 22. Air outlet; 24. Air inlet; 26. Connecting bottom plate; 28. Protrusion; 30. Hot air assembly; 32. Hot air fan; 322. Fan blades; 324. Motor; 34. Hot air heating pipe; 40. Heat-resistant protective part; 50. Heat-resistant clamping part; 52. Mounting groove. DETAILED DESCRIPTION

[0044] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0045] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0046] It should be noted that the air duct device in the present application is mainly used in ovens. The air duct device is provided so that the oven has a 3D hot air function. The air duct device can create a strong convection air duct in the inner cavity of the oven. Compared with the natural convection heating method of the oven in the related art, the oven with a 3D hot air function can more easily heat food evenly.

[0047] The heat-resistant protective member 40 and the heat-resistant clamping member 50 in the present application have a heat-resistant function, which can prevent the heat emitted by the hot air heating tube 34 from damaging it. The method of blocking fingers from touching the fan blades 322 in the present application is completely different from the blocking method in the related art. The related art is to set the air inlet 24 with a reasonable position and aperture size, thereby preventing the customer's fingers from reaching into the air inlet 24 and contacting the fan blades 322. However, the present application independently adds a heat-resistant protective member 40, which is set corresponding to the air inlet 24 to block the customer's fingers from reaching the fan blades 322. Since the customer's fingers are completely blocked by the heat-resistant protective member 40 in the present application, the air inlet 24 does not need to have the function of blocking the customer's fingers from reaching in. Therefore, the air inlet 24 can be set larger and more uniform, so that its design freedom is higher.

[0048] Refer to the following Figures 1 to 11 Air duct arrangements according to some embodiments of the present invention are described.

[0049] Embodiment 1

[0050] like Figures 1 to 6 As shown, an embodiment of the first aspect of the present invention provides an air duct device, which includes a cavity rear plate 10, a hot air motor cover 20 and a hot air assembly 30. The hot air motor cover 20 is arranged on the cavity rear plate 10, and a cavity is formed between the hot air motor cover 20 and the cavity rear plate 10. The hot air motor cover 20 is provided with an air outlet 22 and an air inlet 24, and the air outlet 22 and the air inlet 24 are connected to the cavity. The hot air assembly 30 is arranged on the cavity rear plate 10, and is partially located in the cavity. The hot air assembly 30 is arranged corresponding to the air outlet 22 and the air inlet 24. Among them, the hot air assembly 30 includes a fan blade 322 arranged in the cavity, and the air duct device also includes a heat-resistant protective member 40, which is arranged between the fan blade 322 and the air outlet 22 to prevent fingers from touching the fan blade 322.

[0051] In the above arrangement, since the air duct device is provided with a heat-resistant protective member 40 between the fan blade 322 and the air outlet 22 to prevent fingers from touching the fan blade 322, the problem of fingers being scratched by touching the fan blade 322 is avoided, thereby improving the safety of the oven. In addition, the present application adds a heat-resistant protective member 40 to prevent fingers from touching the fan blade 322, so there is no need to set a smaller aperture of the air outlet 22 as in the related art to prevent fingers from being scratched by touching the fan blade 322 when they are inserted into the cavity, thereby providing a higher degree of freedom for setting the air outlet 22 on the hot air motor cover 20, that is, when setting the air outlet 22, there is no need to consider the problem of preventing fingers from being inserted into the cavity, and the air outlet 22 can be set larger and the position can be set more evenly and reasonably. It effectively solves the problem of breaking through the bottleneck of uniform cooking effect in a short period of time, thereby playing a role in improving cooking efficiency.

[0052] It should be noted that the related art mainly sets a smaller aperture of the air outlet 22 to prevent fingers from reaching into the air outlet 22 and touching the fan blade 322. This places high demands on the aperture size and position distribution of the air outlet 22, and requires multiple safety test finger tests to finally determine the size of the air outlet 22, which prolongs the design cycle of the oven.

[0053] In addition, if the air outlet hole 22 of the hot air motor cover is small, the air duct flow effect will be poor, the cooking uniformity effect will not be obvious, the cycle of finding an optimized cooking solution will be much longer, and in many cases, due to the project development cycle, the poor cooking effect will be compromised, and a better cooking experience cannot be brought to market users.

[0054] It should be noted that the purpose of the safety test is to ensure that different customers (such as children or adults) can use the oven by reasonably setting the aperture size of the air outlet 22 to prevent different customers' fingers from reaching into the air outlet 22 and touching the fan blade 322, thereby avoiding the problem of scratches caused by their fingers reaching into the cavity and touching the fan blade 322. Generally, multiple safety test finger tests are required to determine the aperture size of the air outlet 22, which is time-consuming and labor-intensive, and prolongs the development time of the hot air motor cover 20.

[0055] The present application provides a higher degree of freedom for the arrangement of the air outlet 22 on the hot air motor cover 20 by adding a heat-resistant protective member 40 to prevent the fingers from touching the fan blades 322. The problem of limited opening schemes of the hot air motor cover 20 can be solved, the development cycle can be saved, and a good uniform cooking effect can be achieved.

[0056] Furthermore, if Figure 3 and Figure 6 As shown, the heat-resistant protective member 40 is a heat-resistant metal ring, and the outer circumferential surface and end surface of the heat-resistant metal ring are used to block fingers.

[0057] In the above arrangement, the heat-resistant metal ring can prevent fingers from being scratched by touching the fan blades 322, thereby improving the safety of the oven. At the same time, it provides a higher degree of freedom for the arrangement of the air outlet 22 on the hot air motor cover 20, effectively solving the problem of breaking through the bottleneck of uniform cooking effect in a short period of time, thereby playing a role in improving cooking efficiency. Moreover, the heat-resistant metal ring has a simple structure, which is convenient for subsequent maintenance and replacement, thereby saving the maintenance cost of the oven and improving the convenience of using the oven. In addition, the heat-resistant metal ring has a heat-resistant function, which can prevent it from being damaged by the heat emitted by the hot air heating pipe 34, thereby ensuring that the heat-resistant protective member 40 can normally block the fingers to prevent the fingers from being scratched by the fan blades 322.

[0058] Of course, the heat-resistant protection member 40 can be configured as a ring structure of other shapes, such as a square ring or a hexagonal ring, etc., according to actual conditions.

[0059] Embodiment 2

[0060] like Figures 1 to 6 As shown, an embodiment of the first aspect of the present invention provides an air duct device, which includes a cavity rear plate 10, a hot air motor cover 20 and a hot air assembly 30. The hot air motor cover 20 is arranged on the cavity rear plate 10, and a cavity is formed between the hot air motor cover 20 and the cavity rear plate 10. The hot air motor cover 20 is provided with an air outlet 22 and an air inlet 24, and the air outlet 22 and the air inlet 24 are connected to the cavity. The hot air assembly 30 is arranged on the cavity rear plate 10, and is partially located in the cavity. The hot air assembly 30 is arranged corresponding to the air outlet 22 and the air inlet 24. Among them, the hot air assembly 30 includes a fan blade 322 arranged in the cavity, and the air duct device also includes a heat-resistant protective member 40, which is arranged between the fan blade 322 and the air outlet 22 to prevent fingers from touching the fan blade 322.

[0061] Specifically, Figure 3 and Figure 6 As shown, in an embodiment of the present invention, the hot air assembly 30 further includes a hot air fan 32 and a hot air heating pipe 34. The hot air fan 32 includes a fan blade 322, and the fan blade 322 is rotatably arranged in the cavity. The hot air heating pipe 34 is arranged on the cavity rear plate 10 and is arranged around the outer periphery of the hot air fan 32, and the hot air heating pipe 34 is connected to the heat-resistant protective member 40.

[0062] In the above arrangement, when the fan blades 322 rotate, the air in the oven cavity forms strong convection with the air in the cavity, and the air in the oven cavity enters the cavity through the air inlet 24, is heated by the hot air heating pipe 34, and then flows back into the oven cavity from the air outlet 22. In this way, the air duct device has a hot air function, so that the food can be heated more evenly.

[0063] Furthermore, if Figures 7 to 9 As shown, in an embodiment of the present invention, the air duct device further includes a heat-resistant clamp 50 , which is connected to the hot air heating pipe 34 , and an installation groove 52 is provided at the end of the heat-resistant clamp 50 , which is used to install the heat-resistant protective component 40 .

[0064] In the above setting, the heat-resistant clamp 50 is installed and fixed to the heat-resistant protective component 40 through the mounting groove 52, so that the heat-resistant clamp 50 is located between the hot air heating tube 34 and the fan blade 322, thereby ensuring that the heat-resistant clamp 50 can prevent fingers from touching the fan blade 322, thereby improving the safety of the oven.

[0065] Furthermore, if Figures 7 to 9As shown, in the embodiment of the present invention, the heat-resistant clamping member 50 is provided with a mounting hole, and the hot air heating pipe 34 is partially inserted into the mounting hole.

[0066] In the above arrangement, the heat-resistant clamp 50 is connected to the hot air heating pipe 34 by penetration, so that the heat-resistant clamp 50 is fixed on the hot air heating pipe 34, thereby ensuring that the heat-resistant clamp 50 can be used as a fixed support to fix the heat-resistant protective member 40.

[0067] It should be noted that the hot air heating tube 34 in the present application adopts a heating tube with a multi-layer ring structure. In order to avoid the contact between the layers of the heating tube with a multi-layer ring structure and affect the heating efficiency of the hot air heating tube 34, the distance between two adjacent layers in the heating tube with a multi-layer ring structure needs to be fixed, and the heat-resistant clamping part 50 is provided with spaced mounting holes, and each layer is inserted into the corresponding mounting hole. In this way, the distance between two adjacent layers in the heating tube with a multi-layer ring structure is limited.

[0068] In addition, a mounting groove 52 is provided at the end of the heat-resistant clamp 50, and the mounting hole is spaced apart from the mounting groove 52, so that the spacing between two adjacent layers of the multi-layer annular heating pipe can be limited by setting the mounting hole, and the relative position between the heat-resistant protective member 40 and the hot air heating pipe 34 can be limited by setting the mounting groove 52. This ensures that the heat-resistant protective member 40 and the hot air heating pipe 34 are spaced apart by a certain distance to prevent the two from affecting each other during operation.

[0069] Compared with the heat-resistant clamp in the related art, the heat-resistant clamp 50 in the present application can not only limit the distance between two adjacent layers of the multi-layer annular structure of the heating pipe, but also limit the relative position between the heat-resistant protective member 40 and the hot air heating pipe 34. Therefore, the heat-resistant clamp 50 in the present application has a dual limiting function. The two ends of the hot air heating pipe 34 are fixed on the connecting plate, and the hot air heating pipe 34 is fixed on the cavity rear plate 10 through the connecting plate. Of course, according to the actual situation, a separate support member can be set for installing the heat-resistant protective member 40.

[0070] Furthermore, if Figures 7 to 9 As shown, in an embodiment of the present invention, the air duct device includes a plurality of heat-resistant clamping members 50 , and the heat-resistant protective member 40 is installed in the installation grooves 52 of the plurality of heat-resistant clamping members 50 .

[0071] In the above arrangement, multiple heat-resistant clamps 50 can simultaneously support and fix the heat-resistant protective member 40, so that the heat-resistant protective member 40 can be better fixed to the heat-resistant clamps 50, thereby ensuring that the heat-resistant protective member 40 can prevent fingers from touching the fan blades 322 and being scratched, thereby improving the safety of oven use.

[0072] Furthermore, if Figures 7 to 9As shown, in the embodiment of the present invention, the air duct device includes three heat-resistant clamping members 50, and the heat-resistant protective member 40 is installed in the installation grooves 52 of the three heat-resistant clamping members 50. The three heat-resistant clamping members 50 are evenly spaced along the circumference of the hot air heating pipe 34. Of course, four or more heat-resistant clamping members 50 can be provided according to actual conditions, and the four or more heat-resistant clamping members 50 can be evenly spaced along the circumference of the hot air heating pipe 34.

[0073] Embodiment 3

[0074] like Figures 1 to 6 As shown, an embodiment of the first aspect of the present invention provides an air duct device, which includes a cavity rear plate 10, a hot air motor cover 20 and a hot air assembly 30. The hot air motor cover 20 is arranged on the cavity rear plate 10, and a cavity is formed between the hot air motor cover 20 and the cavity rear plate 10. The hot air motor cover 20 is provided with an air outlet 22 and an air inlet 24, and the air outlet 22 and the air inlet 24 are connected to the cavity. The hot air assembly 30 is arranged on the cavity rear plate 10, and is partially located in the cavity. The hot air assembly 30 is arranged corresponding to the air outlet 22 and the air inlet 24. Among them, the hot air assembly 30 includes a fan blade 322 arranged in the cavity, and the air duct device also includes a heat-resistant protective member 40, which is arranged between the fan blade 322 and the air outlet 22 to prevent fingers from touching the fan blade 322.

[0075] Specifically, Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the hot air fan 32 of the hot air assembly 30 also includes a motor 324 , which is connected to the fan blades 322 , and the motor 324 is disposed on one end of the cavity rear plate 10 away from the hot air motor cover 20 .

[0076] In the above arrangement, the motor 324 serves as a power source and can drive the hot air fan 32 to rotate, thereby ensuring that the air in the oven cavity and the air in the cavity form strong convection, thereby ensuring that the hot air function of the air duct device can be realized.

[0077] It should be noted that a connecting shaft is provided between the motor 324 and the fan blade 322, and the connecting shaft is provided on the cavity rear plate 10, one end of which is connected to the output end of the motor 324, and the other end is connected to the fan blade 322. The motor 324 drives the connecting shaft to rotate, and the connecting shaft drives the fan blade 322 to rotate. Of course, according to actual conditions, the connecting shaft may not be provided, and the output end of the motor 324 may be directly provided through the cavity rear plate 10 and connected to the fan blade 322.

[0078] Embodiment 4

[0079] On the basis of any one of Embodiments 1 to 3, Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the hot air fan 32 of the hot air assembly 30 also includes a motor 324 , which is connected to the fan blades 322 , and the motor 324 is disposed on one end of the cavity rear plate 10 away from the hot air motor cover 20 .

[0080] Embodiment 5

[0081] like Figure 1 , Figure 4 , Fig.10 and Fig.11 As shown, in any of the above embodiments, the hot air motor cover 20 is configured as a hollow raised structure, and the hot air motor cover 20 includes a connecting bottom plate 26 and a protrusion 28 connected to the connecting bottom plate 26, and the protrusion 28 protrudes from the connecting bottom plate 26 in a direction away from the cavity rear plate 10.

[0082] In the above arrangement, since the hot air motor cover 20 is a hollow convex structure, when the hot air motor cover 20 is set on the cavity rear plate 10, a cavity can be formed between the hot air motor cover 20 and the cavity rear plate 10, thereby providing installation space for the heat-resistant protective member 40, the fan blades 322 and the hot air heating pipe 34, thereby ensuring that the hot air function of the air duct device can be realized. Of course, the hot air motor cover 20 can be set as a hollow box structure according to actual conditions.

[0083] Embodiment 6

[0084] The embodiment of the first aspect of the present invention provides an air duct device, which includes a cavity rear plate 10, a hot air motor cover 20 and a hot air assembly 30. The hot air motor cover 20 is arranged on the cavity rear plate 10, and a cavity is formed between the hot air motor cover 20 and the cavity rear plate 10. The hot air motor cover 20 is provided with an air outlet 22 and an air inlet 24, and the air outlet 22 and the air inlet 24 are connected to the cavity. The hot air assembly 30 is arranged on the cavity rear plate 10, and is partially located in the cavity. The hot air assembly 30 is arranged corresponding to the air outlet 22 and the air inlet 24. Among them, the hot air assembly 30 includes a fan blade 322 arranged in the cavity, and the air duct device also includes a heat-resistant protective member 40, which is arranged between the fan blade 322 and the air outlet 22, and is used to prevent fingers from touching the fan blade 322.

[0085] Specifically, Figure 3 and Figure 6 As shown, the hot air assembly 30 also includes a hot air fan 32 and a hot air heating pipe 34. The hot air fan 32 includes a fan blade 322, and the fan blade 322 is rotatably arranged in the cavity. The hot air heating pipe 34 is arranged on the cavity rear plate 10 and is arranged around the outer periphery of the hot air fan 32. The hot air heating pipe 34 is connected to the heat-resistant protective member 40.

[0086] Specifically, Figures 7 to 9As shown, the air duct device further includes a heat-resistant clamping member 50 , which is connected to the hot air heating pipe 34 , and an installation groove 52 is provided at the end of the heat-resistant clamping member 50 , which is used to install the heat-resistant protective member 40 .

[0087] Specifically, the heat-resistant clamp 50 is installed and fixed to the heat-resistant protective component 40 through the installation groove 52, so that the heat-resistant clamp 50 is located between the hot air heating tube 34 and the fan blade 322, thereby ensuring that the heat-resistant clamp 50 can prevent fingers from touching the fan blade 322, thereby improving the safety of oven use.

[0088] Specifically, Figure 8 and Fig. 9 As shown, the heat-resistant clamping member 50 is provided with a mounting hole, and the hot air heating pipe 34 is partially inserted into the mounting hole.

[0089] Specifically, Figures 7 to 9 As shown, the air duct device includes a plurality of heat-resistant clamping members 50 , and the heat-resistant protective member 40 is installed in the installation grooves 52 of the plurality of heat-resistant clamping members 50 .

[0090] Specifically, Figures 7 to 9 As shown, the air duct device includes three heat-resistant clamping members 50, and the heat-resistant protective member 40 is installed in the installation grooves 52 of the three heat-resistant clamping members 50. The three heat-resistant clamping members 50 are evenly spaced along the circumference of the hot air heating pipe 34. Of course, four or more heat-resistant clamping members 50 can be provided according to actual conditions, and the four or more heat-resistant clamping members 50 can be evenly spaced along the circumference of the hot air heating pipe 34.

[0091] Specifically, Figure 1 , Figure 4 and Fig.11 As shown, the air outlet 22 is located on the outside of the hot air heating pipe 34 of the hot air assembly 30 , and the air inlet 24 is located on the inside of the hot air heating pipe 34 .

[0092] In the above arrangement, the air inlet 24 is arranged inside the hot air heating pipe 34. In this way, the air in the oven cavity enters the inside of the hot air heating pipe 34 in the cavity through the air inlet 24, so that the hot air heating pipe 34 can fully heat and raise the temperature of the air, thereby enabling the oven to heat the food more evenly.

[0093] It should be noted that the air outlet 22 is configured as a long hole in a strip structure, and air outlets 22 are provided on all four sides of the hot air motor cover 20. The hot air motor cover 20 is provided with a plurality of air inlet holes 24 on its surface, and the plurality of air inlet holes 24 are distributed around the central axis of the hot air motor cover 20.

[0094] Specifically, Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the hot air fan 32 of the hot air assembly 30 also includes a motor 324 , which is connected to the fan blades 322 , and the motor 324 is disposed on one end of the cavity rear plate 10 away from the hot air motor cover 20 .

[0095] Specifically, Figure 1 , Figure 4 , Fig.10 and Fig.11 As shown, the hot air motor cover 20 is configured as a hollow raised structure, and the hot air motor cover 20 includes a connecting bottom plate 26 and a protrusion 28 connected to the connecting bottom plate 26 , and the protrusion 28 protrudes from the connecting bottom plate 26 in a direction away from the cavity rear plate 10 .

[0096] It should be noted that, since the hot air motor cover 20 is a hollow convex structure, when the hot air motor cover 20 is set on the cavity rear plate 10, a cavity can be formed between the hot air motor cover 20 and the cavity rear plate 10, thereby providing installation space for the heat-resistant protective member 40, the fan blades 322 and the hot air heating pipe 34, thereby ensuring that the hot air function of the air duct device can be realized. Of course, the hot air motor cover 20 can be set as a hollow box structure according to actual conditions.

[0097] Embodiment 7

[0098] The present invention also provides an oven, comprising an oven body and an air duct device as described in any one of the embodiments of the first aspect, the oven body comprising a plurality of side panels, the plurality of side panels enclosing an oven cavity, the cavity rear panel 10 of the air duct device being one of the plurality of side panels, and the hot air motor cover 20 of the air duct device being located in the oven cavity.

[0099] In the above arrangement, since the oven is integrated with the air duct device, the oven has a hot air function, thereby enhancing the baking function of the oven and satisfying the multi-functional requirements of the oven.

[0100] From the above description, it can be seen that since the air duct device is provided with a heat-resistant protective member 40 between the fan blade 322 and the air outlet 22 to prevent the finger from touching the fan blade 322, the problem of the finger touching the fan blade 322 and being scratched is avoided, thereby improving the safety of the oven. In addition, the present application adds a heat-resistant protective member 40 to prevent the finger from touching the fan blade 322, so there is no need to set a smaller aperture of the air outlet 22 as in the related art to prevent the finger from reaching into the cavity and touching the fan blade 322 and being scratched, thereby providing a higher degree of freedom for the setting of the air outlet 22 on the hot air motor cover 20, that is, when setting the air outlet 22, there is no need to consider the problem of preventing the finger from reaching in, and the air outlet 22 can be set larger and the position can be set more evenly and reasonably. It effectively solves the problem of breaking through the bottleneck of uniform cooking effect in a short time, thereby playing a role in improving cooking efficiency.

[0101] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0102] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0103] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0104] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air duct device, characterized in that: The air duct device comprises: Cavity rear plate; A hot air motor cover is arranged on the rear plate of the cavity, a cavity is formed between the hot air motor cover and the rear plate of the cavity, an air outlet hole and an air inlet hole are arranged on the hot air motor cover, and the air outlet hole and the air inlet hole are connected with the cavity; A hot air component is arranged on the rear plate of the cavity and is partially located in the cavity, and the hot air component is arranged corresponding to the air outlet and the air inlet; Wherein, the hot air assembly includes a fan blade rotatably arranged in the cavity, and the air duct device also includes a heat-resistant protective member, which is arranged between the fan blade and the air outlet to prevent the fan blade from being touched; The hot air component also includes a hot air heating pipe, which is arranged on the rear plate of the cavity and surrounds the outer periphery of the fan blade, and the hot air heating pipe is connected to the heat-resistant protective member; The air duct device further comprises a heat-resistant clamping piece, the heat-resistant clamping piece is connected to the hot air heating pipe, and an installation groove is provided at the end of the heat-resistant clamping piece, and the installation groove is used to install the heat-resistant protective piece; The heat-resistant clamp is provided with a mounting hole, and the hot air heating pipe is partially inserted into the mounting hole.

2. The air duct device according to claim 1, characterized in that: The heat-resistant protective member is a heat-resistant metal ring, and the outer circumferential surface and / or end surface of the heat-resistant metal ring is used to block fingers.

3. The air duct device according to claim 1, characterized in that: The air duct device comprises a plurality of the heat-resistant clamping members, and the heat-resistant protective member is installed in the installation grooves of the plurality of the heat-resistant clamping members.

4. The air duct device according to any one of claims 1 to 3, characterized in that: The hot air component also includes a motor, which is connected to the fan blades and is arranged on an end of the cavity rear plate away from the hot air motor cover.

5. The air duct device according to any one of claims 1 to 3, characterized in that: The hot air motor cover is configured as a hollow protruding structure, and the hot air motor cover comprises a connecting bottom plate and a protrusion connected to the connecting bottom plate, and the protrusion protrudes from the connecting bottom plate in a direction away from the cavity rear plate.

6. The air duct device according to any one of claims 1 to 3, characterized in that: The air outlet is located on the outer side of the hot air heating pipe of the hot air assembly, and the air inlet is located on the inner side of the hot air heating pipe.

7. An oven, characterized in that: The oven comprises: The oven body comprises a plurality of side panels, wherein the plurality of side panels enclose an inner cavity of the oven; The air duct device according to any one of claims 1 to 6, wherein the cavity rear plate of the air duct device is one of the plurality of side plates, and the hot air motor cover of the air duct device is located in the inner cavity of the oven.

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