CN115005688A - Air duct device and oven - Google Patents

Abstract

The invention provides an air duct device and an oven, wherein the air duct device comprises: a cavity back plate; the hot air motor cover is arranged on the cavity back plate, a cavity is formed between the hot air motor cover and the cavity back plate, and an air outlet hole and an air inlet hole are formed in the hot air motor cover and are communicated with the cavity; the hot air component is arranged on the cavity rear plate, part of the hot air component is positioned in the cavity, and the hot air component is arranged corresponding to the air outlet hole and the air inlet hole; the hot air assembly comprises fan blades arranged in the cavity, the air duct device further comprises a heat-resistant protection piece, and the heat-resistant protection piece is arranged between the fan blades and the air outlet holes. According to the technical scheme, the heat-resistant protection piece is additionally arranged to prevent fingers from touching the fan blades, so that a higher degree of freedom is provided for the arrangement of the air outlet on the hot wind turbine cover, the problem that the bottleneck of uniform cooking effect is broken through in a short time is effectively solved, and the effect of improving the cooking efficiency is achieved.

Description

Air duct device and oven

Technical Field

The invention relates to the technical field of air duct equipment of ovens, in particular to an air duct device and an oven.

Background

At present, the hot air 3D cooking technology is a one-door heating technology of an oven. The combination mode of the hot air heating pipe, the fan and the hot air motor cover on the back is utilized, the strong convection air channel is built in the inner cavity of the oven, and compared with the natural convection heating function, the food heating is more easily and uniformly carried out. Wherein, the design of hot-blast motor cover trompil has played crucial effect to the even food in wind channel, and good trompil structure is representing good wind channel design, and even heating food that can be obvious boils the food effect very good. Thus, the requirements for the degree of freedom of the opening are also high.

In the related art, the air outlet with a smaller aperture is usually provided to prevent fingers from extending into the cavity and touching the fan blades to be scratched. However, the smaller diameter of the air outlet may reduce the degree of freedom of the air outlet, which may result in poor flowing effect of the air duct and may not break through the bottleneck of uniform cooking effect in a short time.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art or the related art.

To this end, it is an object of the present invention to provide an air duct device.

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

In order to achieve the above object, an embodiment of the present invention provides an air duct device including: a cavity back plate; the hot air motor cover is arranged on the cavity back plate, a cavity is formed between the hot air motor cover and the cavity back plate, and an air outlet hole and an air inlet hole are formed in the hot air motor cover and are communicated with the cavity; the hot air assembly is arranged on the rear plate of the cavity, part of the hot air assembly is positioned in the cavity, and the hot air assembly is arranged corresponding to the air outlet and the air inlet; the hot air assembly comprises fan blades rotatably arranged in the cavity, and the air duct device further comprises a heat-resistant protection piece which is arranged between the fan blades and the air outlet and used for preventing the fan blades from being touched.

In the technical scheme, the heat-resistant protection piece for preventing fingers from touching the fan blades is additionally arranged between the fan blades and the air outlet holes of the air duct device, so that the problem that the fingers are scratched when touching the fan blades is avoided, and the use safety of the oven is improved. In addition, this application need not like in the correlation technique like this through addding heat-resisting protection part in order to block finger touching flabellum, need not to set up the venthole in less aperture in order to avoid the finger to stretch into the cavity and touch the flabellum and by the fish tail to the setting of venthole provides higher degree of freedom on the hot wind power generation machine cover, need not to consider the problem that prevents the finger and stretch into when setting up the venthole promptly, can be bigger with what the venthole set up, more even reasonable that the position set up. Effectively solves the problem of breaking through the bottleneck of uniform cooking effect in a short time, and further plays a role in improving the cooking efficiency.

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

in the above technical solution, the heat-resistant protection member is a heat-resistant metal ring, and the outer circumference and/or end surface of the heat-resistant metal ring is used for blocking fingers.

In this technical scheme, heat-resisting metal ring can avoid the finger to touch the flabellum and the problem by the fish tail to the security that the oven used has been improved. Simultaneously, a higher degree of freedom is provided for the arrangement of the air outlet holes on the hot air motor cover, the problem that the bottleneck of uniform cooking effect is broken through in a short time is effectively solved, and the effect of improving the cooking efficiency is further played. Moreover, the heat-resistant metal ring is simple in structure and convenient to maintain and replace, so that the maintenance cost of the oven is saved, and the use convenience of the oven is improved. In addition, the heat-resistant metal ring has a heat-resistant function, so that the problem that the heat-resistant metal ring is damaged by heat generated by the hot air heating pipe can be avoided, and the heat-resistant protection part can normally block fingers, so that the fingers are prevented from being scratched by the fan blades.

In any of the above technical solutions, the hot air assembly further includes a hot air heating pipe disposed on the cavity back plate and surrounding the periphery of the fan blades, and the hot air heating pipe is connected with the heat-resistant protection element.

In the technical scheme, when the fan blades rotate, air in the inner cavity of the oven and air in the cavity form strong convection, the air in the inner cavity of the oven enters the cavity through the air inlet holes, is heated and heated under the action of the hot air heating pipe, and then flows back into the inner cavity of the oven from the air outlet holes. Thus, the air duct device has a hot air function, so that food can be heated more uniformly.

In any one of the above technical solutions, the air duct device further includes a heat-resistant clamping member, the heat-resistant clamping member is connected with the hot air heating pipe, an installation groove is provided at an end of the heat-resistant clamping member, and the installation groove is used for installing the heat-resistant protection member.

In this technical scheme, heat-resisting holder passes through the mounting groove installation and fixes heat-resisting protection spare, makes heat-resisting holder be located between hot-blast heating tube and the flabellum like this to ensure that heat-resisting holder can block finger touching flabellum, and then improved the security that the oven used.

In any of the above technical schemes, the heat-resistant clamping piece is provided with a mounting hole, and the hot air heating pipe is partially arranged in the mounting hole in a penetrating way.

In this technical scheme, heat-resisting holder links together through wearing to establish the mode with hot-blast heating tube, fixes heat-resisting holder on hot-blast heating tube like this, and then ensures that heat-resisting holder can regard as the heat-resisting protection piece of fixed support piece fixed mounting.

In any of the above technical solutions, the air duct device includes a plurality of heat-resistant clamping members, and the heat-resistant shielding member is installed in the installation groove of the plurality of heat-resistant clamping members.

In this technical scheme, a plurality of heat-resisting holder can support simultaneously and fixed heat-resisting protection piece, makes heat-resisting protection piece can be fixed in heat-resisting holder better like this, and then ensures that heat-resisting protection piece can block that the finger bumps into the flabellum and is scratched to the security that the oven used has improved.

In any of the above technical schemes, the hot air assembly further comprises a motor, the motor is connected with the fan blades, and the motor is arranged at one end of the cavity rear plate far away from the hot air motor cover.

In this technical scheme, the motor is as the power supply, can drive hot-blast fan and rotate to ensure that the air of oven inner chamber and the air in the cavity form strong convection, and then ensure that air duct device's hot-blast function can realize.

In any of the above technical solutions, the hot air motor cover is provided with a hollow protrusion structure, the hot air motor cover includes a connection bottom plate and a protrusion connected with the connection bottom plate, and the protrusion protrudes out of the connection bottom plate towards a direction away from the cavity back plate.

In this technical scheme, because hot-blast motor cover is hollow protruding structure, when making hot-blast motor shroud set up on the cavity back plate like this, can form the cavity between hot-blast motor cover and the cavity back plate to for heat-resisting protection piece, flabellum and hot-blast heating tube provide installation space, and then ensure that air duct device's hot-blast function can realize.

In any of the above technical schemes, the air outlet is located at the outer side of the hot air heating pipe of the hot air assembly, and the air inlet is located at the inner side of the hot air heating pipe.

In the technical scheme, the air inlet hole is arranged on the inner side of the hot air heating pipe. Therefore, air in the inner cavity of the oven enters the inner side of the hot air heating pipe in the cavity through the air inlet hole, and the hot air heating pipe can fully heat and heat the hot air heating pipe. Thereby enabling the oven to heat the food more uniformly.

In a second aspect, the present invention provides an oven, comprising: in the air duct device according to any one of the first aspect, the rear plate of the cavity of the air duct device is one of the side plates, and the hot air motor cover of the air duct device is located in the oven cavity.

The oven provided by the technical scheme of the second aspect of the present invention includes any one of the air duct devices in the technical scheme of the first aspect, so that all the beneficial effects of any one of the above technical schemes are achieved, and details are not repeated herein.

In the above scheme, because the oven is integrated with the air duct device, the oven has a hot air function, so that the baking function of the oven is enhanced, and the multifunctional requirement of the oven is further met.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of an air duct apparatus according to an embodiment of the present invention;

FIG. 2 shows a right side view of the air duct apparatus of FIG. 1;

FIG. 3 shows a cross-sectional view of the air duct apparatus A-A of FIG. 1;

FIG. 4 shows a schematic structural view of an air duct apparatus according to an embodiment of the present invention (the hot air motor cover is not shown);

FIG. 5 shows a right side view of the air duct apparatus of FIG. 4 (with the hot air motor cover not shown);

FIG. 6 shows a cross-sectional view at air duct assembly B-B of FIG. 4 (hot air motor cover not shown);

fig. 7 is a view showing an assembled relationship of the hot air heating duct, the heat-resistant clamp and the heat-resistant protector in fig. 1;

FIG. 8 shows a front view of the fitting of FIG. 7;

FIG. 9 shows a top view of the fitting of FIG. 8;

FIG. 10 shows a front view of the hot air motor cover of FIG. 1;

fig. 11 shows a cross-sectional view at a hot wind motor cover C-C in fig. 10 (the arrow direction in the drawing is the air-in and air-out direction).

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 11 is:

10. a cavity back plate; 20. a hot air motor cover; 22. an air outlet; 24. an air inlet; 26. connecting the bottom plate; 28. a protrusion; 30. a hot air assembly; 32. a hot air fan; 322. a fan blade; 324. a motor; 34. a hot air heating pipe; 40. a heat resistant guard; 50. a heat resistant clamp; 52. and (4) mounting the groove.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention, taken in conjunction with the accompanying drawings and detailed description, is set forth below. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein and, therefore, the scope of the present invention is not limited by the specific embodiments disclosed below.

It should be noted that, the air duct device in this application is mainly applied to the oven, sets up the air duct device and makes the oven have the hot-blast function of 3D, and the air duct device can build out strong convection wind channel in the oven inner chamber, for the natural convection heating mode of the oven among the correlation technique, the oven that has the hot-blast function of 3D makes food heating even more easily.

The heat-resistant protector 40 and the heat-resistant holder 50 in the present application have a heat-resistant function, and can prevent heat emitted from the hot air heating pipe 34 from damaging it. The mode that blocks in this application finger touching flabellum 322 is different completely with the mode that blocks in the correlation technique, then in the correlation technique sets up reasonable position and aperture size's inlet port 24, and then prevents that customer's finger from stretching into inlet port 24 and flabellum 322 contact. In the present application, a heat-resistant protection member 40 is independently added and arranged corresponding to the air inlet hole 24 for preventing the fingers of the user from extending to the fan blades 322. Since the fingers of the customer are completely blocked by the heat resistant guards 40 in this application, the air intake holes 24 need not function to block the insertion of the customer's fingers. Thus, the intake holes 24 can be arranged larger and more uniformly, so that the degree of freedom in design thereof is higher.

An air duct device according to some embodiments of the present invention is described below with reference to fig. 1 to 11.

Example one

As shown in fig. 1 to 6, an embodiment of the first aspect of the present invention provides an air duct device, which includes a cavity back plate 10, a hot air motor cover 20 and a hot air assembly 30, where the hot air motor cover 20 is disposed on the cavity back plate 10, a cavity is formed between the hot air motor cover 20 and the cavity back plate 10, an air outlet 22 and an air inlet 24 are disposed on the hot air motor cover 20, and the air outlet 22 and the air inlet 24 are communicated with the cavity. The hot air assembly 30 is disposed on the cavity back plate 10, and a part of the hot air assembly 30 is located in the cavity, and the hot air assembly 30 is disposed corresponding to the air outlet 22 and the air inlet 24. The hot air assembly 30 includes a fan blade 322 disposed in the cavity, and the air duct device further includes a heat-resistant protector 40, wherein the heat-resistant protector 40 is disposed between the fan blade 322 and the air outlet 22 for preventing fingers from touching the fan blade 322.

In the above arrangement, since the heat-resistant protection element 40 for preventing fingers from touching the fan blades 322 is additionally arranged between the fan blades 322 and the air outlet 22 of the air duct device, the problem that the fingers touch the fan blades 322 and are scratched is avoided, and thus the safety of the oven in use is improved. In addition, this application is through addding heat-resisting protection piece 40 in order to block that the finger touches flabellum 322, like this need not like among the relevant art, need set up the venthole 22 of less aperture in order to avoid the finger to stretch into the cavity and touch flabellum 322 and by the fish tail to the setting of venthole 22 provides higher degree of freedom on the hot-blast wind turbine bonnet 20, need not to consider the problem that prevents the finger and stretch into when setting up venthole 22 promptly, can be with the bigger of venthole 22 setting, more even reasonable that the position set up. The problem of breaking through the bottleneck of even effect of cooking in the short time has effectively been solved, and then has played the effect that promotes the efficiency of cooking.

It should be noted that, in the related art, the air outlet 22 with a smaller aperture is mainly provided to prevent fingers from extending into the air outlet 22 to touch the fan blade 322. Therefore, the requirements on the aperture size and the position distribution of the air outlet holes 22 are high, the size of the air outlet holes 22 can be finally determined through a plurality of safety test finger tests, and the design period of the oven is prolonged.

In addition, if the air outlet 22 of the hot air motor cover is small in opening, the air duct flowing effect is poor, the uniform cooking effect is not obvious, the period for searching the optimized cooking scheme is greatly prolonged, and in many cases, better cooking experience cannot be brought to market users due to the reason of project development period and the poor cooking effect.

It should be noted that, the purpose of the safety test is to ensure that when different customers (such as children or adults) use the oven, the aperture size of the air outlet 22 is set reasonably, so as to prevent fingers of different customers from extending into the air outlet 22 and touching the fan blade 322, and further avoid the problem that the fingers of the customers extend into the cavity and touch the fan blade 322 to be scratched. Under the general condition, the aperture size of the air outlet 22 can be determined only by carrying out a plurality of times of safety test finger tests, the test is time-consuming and labor-consuming, and the development time of the hot air motor cover 20 is prolonged.

The heat-resistant protection piece 40 is additionally arranged, fingers are prevented from being touched with the fan blades 322 through the heat-resistant protection piece 40, and a higher degree of freedom is provided for the arrangement of the air outlet 22 on the hot wind turbine cover 20. The problem of limited opening scheme of the hot air motor cover 20 can be solved, the development period can be saved, and good uniform cooking effect can be met.

Further, as shown in fig. 3 and 6, the heat-resistant protector 40 is a heat-resistant metal circular ring, and the outer circumferential surface and the end surface of the heat-resistant metal circular ring are used for blocking fingers.

In the arrangement, the heat-resistant metal ring can avoid the problem that fingers are scratched when touching the fan blades 322, so that the use safety of the oven is improved. Meanwhile, a higher degree of freedom is provided for the arrangement of the air outlet 22 on the hot wind power hood 20, the problem that the bottleneck of uniform cooking effect is broken through in a short time is effectively solved, and the effect of improving the cooking efficiency is further achieved. Moreover, the heat-resistant metal ring is simple in structure and convenient to maintain and replace, so that the maintenance cost of the oven is saved, and the use convenience of the oven is improved. In addition, the heat-resistant metal ring has a heat-resistant function, so that the heat-resistant metal ring can be prevented from being damaged by heat generated by the hot air heating pipe 34, and the heat-resistant protection member 40 can be ensured to normally block fingers, so as to prevent the fingers from being scratched by the fan blades 322.

Of course, the heat-resistant protection member 40 may be provided in an annular structure with other shapes, such as a square ring or a hexagonal ring, etc., according to the actual situation.

Example two

As shown in fig. 1 to 6, an embodiment of the first aspect of the present invention provides an air duct device, which includes a cavity back plate 10, a hot air motor cover 20 and a hot air assembly 30, where the hot air motor cover 20 is disposed on the cavity back plate 10, a cavity is formed between the hot air motor cover 20 and the cavity back plate 10, an air outlet 22 and an air inlet 24 are disposed on the hot air motor cover 20, and the air outlet 22 and the air inlet 24 are communicated with the cavity. The hot air assembly 30 is disposed on the cavity back plate 10, and a part of the hot air assembly 30 is located in the cavity, and the hot air assembly 30 is disposed corresponding to the air outlet 22 and the air inlet 24. The hot air assembly 30 includes a fan blade 322 disposed in the cavity, and the air duct device further includes a heat-resistant protector 40, wherein the heat-resistant protector 40 is disposed between the fan blade 322 and the air outlet 22 for preventing fingers from touching the fan blade 322.

Specifically, as shown in fig. 3 and 6, in the embodiment of the present invention, the hot air assembly 30 further includes a hot air fan 32 and a hot air heating pipe 34. Wherein, the hot air fan 32 comprises a fan blade 322, and the fan blade 322 is rotatably disposed in the cavity. The hot air heating pipe 34 is disposed on the cavity rear plate 10 and surrounds the periphery of the hot air fan 32, and the hot air heating pipe 34 is connected to the heat-resistant protector 40.

In the above arrangement, when the fan blades 322 rotate, strong convection is formed between the air in the oven cavity and the air in the cavity, the air in the oven cavity enters the cavity through the air inlet 24, is heated and warmed under the action of the hot air heating pipe 34, and then flows back into the oven cavity through the air outlet 22. Therefore, the air duct device has a hot air function, so that food can be heated more uniformly.

Further, as shown in fig. 7 to 9, in the embodiment of the present invention, the air duct device further includes a heat-resistant clamping member 50, the heat-resistant clamping member 50 is connected to the hot air heating pipe 34, and an end of the heat-resistant clamping member 50 is provided with a mounting groove 52, and the mounting groove 52 is used for mounting the heat-resistant protection member 40.

In the above arrangement, the heat-resistant clamping member 50 is installed and fixed on the heat-resistant protection member 40 through the installation groove 52, so that the heat-resistant clamping member 50 is located between the hot air heating pipe 34 and the fan blades 322, thereby ensuring that the heat-resistant clamping member 50 can prevent fingers from touching the fan blades 322, and further improving the safety of the oven in use.

Further, as shown in fig. 7 to 9, in the embodiment of the present invention, the heat-resistant clamp 50 is provided with a mounting hole through which the hot air heating pipe 34 is partially inserted.

In the above arrangement, the heat-resistant clamp 50 and the hot air heating pipe 34 are connected by inserting, so that the heat-resistant clamp 50 is fixed to the hot air heating pipe 34, thereby securing that the heat-resistant protector 40 can be fixedly mounted on the heat-resistant clamp 50 as a fixing support.

It should be noted that the hot air heating tube 34 in the present application adopts a multi-layer ring-shaped heating tube, in order to avoid that the heating efficiency of the hot air heating tube 34 is affected by the contact of each layer of the multi-layer ring-shaped heating tube, the distance between two adjacent layers in the multi-layer ring-shaped heating tube needs to be fixed, the heat-resistant clamping members 50 are provided with mounting holes arranged at intervals, each layer is inserted into the corresponding mounting hole, and the distance between two adjacent layers in the multi-layer ring-shaped heating tube is limited by this way.

In addition, the end of the heat-resistant clamping member 50 is provided with a mounting groove 52, and a mounting hole is provided at a distance from the mounting groove 52, so that the interval between two adjacent layers of the heating pipes of the multi-layer ring structure can be defined by providing the mounting hole, and the relative position between the heat-resistant protection member 40 and the hot air heating pipe 34 can be defined by providing the mounting groove 52. Further, the heat-resistant protector 40 and the hot air heating pipe 34 are spaced apart from each other by a predetermined distance, thereby preventing the heat-resistant protector and the hot air heating pipe from affecting each other during operation.

Compared with the heat-resistant clamping member in the related art, the heat-resistant clamping member 50 in the present application can define both the spacing between two adjacent layers of the heat generating pipes of the multi-layer ring structure and the relative position between the heat-resistant protection member 40 and the hot air heating pipe 34, and thus, the heat-resistant clamping member 50 in the present application has a dual-definition function. 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 back plate 10 through the connecting plate. Of course, a support member for installing the heat-resistant guard 40 may be separately provided according to actual circumstances.

Further, as shown in fig. 7 to 9, in the embodiment of the present invention, the air duct device includes a plurality of heat-resistant clamps 50, and the heat-resistant shields 40 are installed in the installation grooves 52 of the plurality of heat-resistant clamps 50.

In the above arrangement, the heat-resistant holders 50 can simultaneously support and fix the heat-resistant guard 40, so that the heat-resistant guard 40 can be better fixed to the heat-resistant holders 50, and the heat-resistant guard 40 can prevent fingers from touching the fan blades 322 and being scratched, thereby improving the safety of the oven in use.

Further, as shown in fig. 7 to 9, in the embodiment of the present invention, the air duct device includes three heat-resistant clamps 50, and the heat-resistant shields 40 are mounted in the mounting grooves 52 of the three heat-resistant clamps 50. Three heat-resistant clamps 50 are provided at regular intervals along the circumferential direction of the hot air heating pipe 34. Of course, four or more heat-resistant clamps 50 may be provided according to actual conditions, and four or more heat-resistant clamps 50 may be provided at even intervals in the circumferential direction of the hot air heating pipe 34.

EXAMPLE III

As shown in fig. 1 to 6, an embodiment of the first aspect of the present invention provides an air duct device, which includes a cavity back plate 10, a hot air motor cover 20 and a hot air assembly 30, where the hot air motor cover 20 is disposed on the cavity back plate 10, a cavity is formed between the hot air motor cover 20 and the cavity back plate 10, an air outlet 22 and an air inlet 24 are disposed on the hot air motor cover 20, and the air outlet 22 and the air inlet 24 are communicated with the cavity. The hot air assembly 30 is disposed on the cavity back plate 10, and a part of the hot air assembly 30 is located in the cavity, and the hot air assembly 30 is disposed corresponding to the air outlet 22 and the air inlet 24. The hot air assembly 30 includes a fan blade 322 disposed in the cavity, and the air duct device further includes a heat-resistant protector 40, wherein the heat-resistant protector 40 is disposed between the fan blade 322 and the air outlet 22 for preventing fingers from touching the fan blade 322.

Specifically, as shown in fig. 2, 3, 5 and 6, the hot air fan 32 of the hot air assembly 30 further includes a motor 324, the motor 324 is connected to the fan blades 322, and the motor 324 is disposed at an end of the cavity back plate 10 away from the hot air motor cover 20.

In the above arrangement, the motor 324 serves as a power source and can drive the hot air fan 32 to rotate, so as to ensure that strong convection is formed between air in the oven cavity and air in the cavity, and further ensure that the hot air function of the air duct device can be realized.

It should be noted that a connecting shaft is arranged between the motor 324 and the fan blade 322, the connecting shaft is arranged on the cavity back plate 10 in a penetrating manner, one end of the connecting shaft is connected with the output end of the motor 324, and the other end of the connecting shaft is connected with the fan blade 322. The motor 324 drives the connecting shaft to rotate, and the connecting shaft drives the fan blades 322 to rotate. Certainly, according to the actual situation, the output end of the motor 324 is directly connected to the fan blade 322 through the cavity back plate 10 without a connecting shaft.

Example four

On the basis of any one of the first to third embodiments, as shown in fig. 2, 3, 5 and 6, the hot air fan 32 of the hot air assembly 30 further includes a motor 324, the motor 324 is connected to the fan blades 322, and the motor 324 is disposed on an end of the cavity rear plate 10 away from the hot air motor cover 20.

EXAMPLE five

As shown in fig. 1, 4, 10 and 11, in any of the above embodiments, the air heating motor cover 20 is provided as a hollow protrusion structure, the air heating 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 back plate 10.

In the above arrangement, since the hot air motor cover 20 is a hollow protruding structure, when the hot air motor cover 20 is disposed on the cavity back plate 10, a cavity can be formed between the hot air motor cover 20 and the cavity back plate 10, so as to provide an installation space for the heat-resistant protection element 40, the fan blades 322 and the hot air heating pipes 34, and further ensure that the hot air function of the air duct device can be realized. Of course, the hot air motor cover 20 may be a hollow box structure according to actual conditions.

Example six

The embodiment of the first aspect of the invention provides an air duct device, which comprises a cavity back plate 10, a hot air motor cover 20 and a hot air assembly 30, wherein the hot air motor cover 20 is arranged on the cavity back plate 10, a cavity is formed between the hot air motor cover 20 and the cavity back plate 10, an air outlet hole 22 and an air inlet hole 24 are arranged on the hot air motor cover 20, and the air outlet hole 22 and the air inlet hole 24 are communicated with the cavity. The hot air assembly 30 is disposed on the cavity back plate 10, and a part of the hot air assembly 30 is located in the cavity, and the hot air assembly 30 is disposed corresponding to the air outlet 22 and the air inlet 24. The hot air assembly 30 includes a fan blade 322 disposed in the cavity, and the air duct device further includes a heat-resistant protector 40, wherein the heat-resistant protector 40 is disposed between the fan blade 322 and the air outlet 22 for preventing fingers from touching the fan blade 322.

Specifically, as shown in fig. 3 and 6, the hot air assembly 30 further includes a hot air fan 32 and a hot air heating pipe 34. Wherein, the hot air fan 32 comprises a fan blade 322, and the fan blade 322 is rotatably disposed in the cavity. The hot air heating pipe 34 is disposed on the cavity rear plate 10 and surrounds the periphery of the hot air fan 32, and the hot air heating pipe 34 is connected to the heat-resistant protector 40.

Specifically, as shown in fig. 7 to 9, the air duct device further includes a heat-resistant clamp 50, the heat-resistant clamp 50 is connected to the hot air heating pipe 34, an end of the heat-resistant clamp 50 is provided with a mounting groove 52, and the mounting groove 52 is used for mounting the heat-resistant shield 40.

Specifically, the heat-resistant holder 50 is installed and fixed to the heat-resistant protector 40 through the installation groove 52 such that the heat-resistant holder 50 is located between the hot air heating pipe 34 and the fan blades 322, thereby ensuring that the heat-resistant holder 50 can block fingers from touching the fan blades 322, thereby improving the safety of the use of the oven.

Specifically, as shown in fig. 8 and 9, the heat-resistant clamp 50 is provided with a mounting hole through which the hot air heating pipe 34 is partially inserted.

Specifically, as shown in fig. 7 to 9, the air duct device includes a plurality of heat-resistant clips 50, and the heat-resistant shields 40 are mounted in mounting grooves 52 of the plurality of heat-resistant clips 50.

Specifically, as shown in fig. 7 to 9, the air duct device includes three heat-resistant clamps 50, and the heat-resistant shields 40 are mounted in the mounting grooves 52 of the three heat-resistant clamps 50. Three heat-resistant clamps 50 are provided at regular intervals along the circumferential direction of the hot air heating pipe 34. Of course, four or more heat-resistant clamps 50 may be provided according to actual conditions, and four or more heat-resistant clamps 50 may be provided at even intervals in the circumferential direction of the hot air heating pipe 34.

Specifically, as shown in fig. 1, 4 and 11, the air outlet hole 22 is located at an outer side of the hot air heating pipe 34 of the hot air assembly 30, and the air inlet hole 24 is located at an inner side of the hot air heating pipe 34.

In the above arrangement, the air intake holes 24 are provided inside the hot air heating pipe 34. Therefore, air in the inner cavity of the oven enters the inner side of the hot air heating pipe 34 in the cavity through the air inlet holes 24, so that the hot air heating pipe 34 can fully heat and raise the temperature of the hot air heating pipe. Thereby enabling the oven to heat the food more uniformly.

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

Specifically, as shown in fig. 2, fig. 3, fig. 5 and fig. 6, the hot air fan 32 of the hot air assembly 30 further includes a motor 324, the motor 324 is connected to the fan blades 322, and the motor 324 is disposed on an end of the cavity back plate 10 away from the hot air motor cover 20.

Specifically, as shown in fig. 1, 4, 10 and 11, the air heating motor cover 20 is provided as a hollow protrusion structure, the air heating motor cover 20 includes a connection base plate 26 and a protrusion 28 connected to the connection base plate 26, and the protrusion 28 protrudes from the connection base plate 26 in a direction away from the cavity back plate 10.

It should be noted that, because the hot air motor cover 20 is a hollow protruding structure, when the hot air motor cover 20 is disposed on the cavity back plate 10, a cavity can be formed between the hot air motor cover 20 and the cavity back plate 10, so as to provide an installation space for the heat-resistant protection element 40, the fan blade 322 and the hot air heating pipe 34, and further ensure that the hot air function of the air duct device can be realized. Of course, the hot air motor cover 20 may be a hollow box structure according to actual conditions.

EXAMPLE seven

The invention also provides an oven, which comprises an oven body and the air duct device according to any one of the embodiments of the first aspect, wherein the oven body comprises a plurality of side plates, the plurality of side plates define an oven inner cavity, the cavity rear plate 10 of the air duct device is one of the plurality of side plates, and the hot air motor cover 20 of the air duct device is located in the oven inner cavity.

In the above arrangement, the oven is integrated with the air duct device, so that the oven has a hot air function, the baking function of the oven is enhanced, and the multifunctional requirement of the oven is met.

From the above description, it can be seen that, since the heat-resistant protection member 40 for blocking fingers from touching the fan blades 322 is added between the fan blades 322 and the air outlet 22, the problem that the fingers touch the fan blades 322 and are scratched is avoided, and thus the safety of the oven is improved. In addition, this application is through addding heat-resisting protection piece 40 in order to block that the finger touches flabellum 322, like this need not like among the relevant art, need set up the venthole 22 of less aperture in order to avoid the finger to stretch into the cavity and touch flabellum 322 and by the fish tail to the setting of venthole 22 provides higher degree of freedom on the hot-blast wind turbine bonnet 20, need not to consider the problem that prevents the finger and stretch into when setting up venthole 22 promptly, can be with the bigger of venthole 22 setting, more even reasonable that the position set up. Effectively solves the problem of breaking through the bottleneck of uniform cooking effect in a short time, and further plays a role in improving the cooking efficiency.

In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are used broadly and should be construed to include, for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit referred to must have a specific direction, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

In the description of the present specification, the description of "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An air duct device, characterized by comprising:

a cavity back plate;

the hot air motor cover 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 hole and an air inlet hole are formed in the hot air motor cover, and the air outlet hole and the air inlet hole are communicated with the cavity;

the hot air assembly is arranged on the cavity rear plate, part of the hot air assembly is positioned in the cavity, and the hot air assembly is arranged corresponding to the air outlet and the air inlet;

wherein, hot-blast subassembly is including rotationally setting up the flabellum in the cavity, air duct device still includes heat-resisting protection piece, heat-resisting protection piece sets up the flabellum with between the venthole, be used for preventing the flabellum is touched.

2. The air duct device according to claim 1, wherein the heat-resistant protector is a heat-resistant metal ring having an outer circumferential surface and/or an end surface for blocking the finger.

3. The air duct device according to claim 1, wherein the hot air assembly further includes a hot air heating pipe disposed on the cavity rear plate and surrounding the fan blades, and the hot air heating pipe is connected to the heat-resistant protection member.

4. The air duct device according to claim 3, further comprising a heat-resistant clamp connected to the hot air heating pipe, an end of the heat-resistant clamp being provided with a mounting groove for mounting the heat-resistant protector.

5. The air duct device according to claim 4, wherein the heat-resistant clamp is provided with a mounting hole, and the hot air heating pipe is partially inserted into the mounting hole.

6. The air duct device according to claim 4, characterized in that the air duct device includes a plurality of the heat-resistant clips, and the heat-resistant shield is mounted in the mounting grooves of the plurality of the heat-resistant clips.

7. The air duct device according to any one of claims 1 to 6, wherein the hot air assembly further comprises a motor connected to the fan blades, and the motor is disposed at an end of the cavity rear plate away from the hot air motor cover.

8. The air duct device according to any one of claims 1 to 6, wherein the hot air motor cover is provided with a hollow protrusion structure, the hot air motor cover includes a connecting bottom plate and a protrusion connected with the connecting bottom plate, and the protrusion protrudes from the connecting bottom plate in a direction away from the cavity rear plate.

9. The air duct device according to any one of claims 1 to 6, wherein the air outlet hole is located outside a hot air heating pipe of the hot air assembly, and the air inlet hole is located inside the hot air heating pipe.

10. An oven, characterized in that the oven comprises:

the oven comprises an oven body and a plurality of side plates, wherein the side plates enclose an oven inner cavity;

an air duct apparatus as claimed in any one of claims 1 to 9, wherein the rear panel of the cavity of the air duct apparatus is one of the side panels, and the hot air motor cover of the air duct apparatus is located in the oven cavity.

Images