CN212573020U - Microwave steaming and baking oven - Google Patents

Abstract

The utility model provides a microwave steaming and baking oven. The utility model provides a microwave steaming and baking oven, which comprises a shell, a cavity, a microwave generating component, a heating pipe component and a steam generator, wherein the cavity, the microwave generating component, the heating pipe component and the steam generator are arranged in the shell; the microwave generating assembly comprises a magnetron assembly, and the magnetron assembly comprises at least two magnetrons connected to the outer wall of the cavity; the heating pipe component comprises at least one annular heating pipe connected in the cavity, and the annular heating pipe is arranged on a back plate of the cavity; the steam generator is arranged outside the cavity body, and an outlet of the steam generator is communicated with the inside of the cavity body. The utility model provides a microwave steaming oven's function is abundant, can promote the taste of food.

Description

Microwave steaming and baking oven

Technical Field

The utility model relates to a kitchen appliance technical field especially relates to a microwave steaming and baking oven.

Background

With the increasing living standard of people, more and more families are equipped with cooking devices with various functions and purposes, such as microwave ovens, steam boxes, ovens and other cooking devices, so as to prepare various foods through different heating modes of different cooking devices.

For example, a microwave oven generally has only a function of cooking food by microwave, and if a user wants to cook food by other means, the user must purchase other appliances, such as a separate steamer or oven. If the microwave oven, the steam box and the oven are purchased at the same time, a large storage space is occupied, and the cost is high. In view of the above, a microwave oven combining a microwave oven and an oven is available in the market, and the microwave oven can simultaneously realize the functions of microwave heating and baking, save the storage space and reduce the price cost.

However, the microwave oven still has a single function, and foods such as steamed stuffed buns and steamed buns which are cooked are dry due to evaporation of internal moisture, and the taste is poor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a microwave steaming and baking oven, microwave steaming and baking oven's function is abundant, can promote the taste of food.

The utility model provides a microwave steaming and baking oven, which comprises a shell, a cavity, a microwave generating component, a heating pipe component and a steam generator, wherein the cavity, the microwave generating component, the heating pipe component and the steam generator are arranged in the shell; the microwave generating assembly comprises a magnetron assembly, and the magnetron assembly comprises at least two magnetrons connected to the outer wall of the cavity; the heating pipe component comprises at least one annular heating pipe connected in the cavity, and the annular heating pipe is arranged on a back plate of the cavity; the steam generator is arranged outside the cavity, and an outlet of the steam generator is communicated with the inside of the cavity.

In a possible embodiment, the at least two magnetrons comprise a first magnetron and a second magnetron, and the first magnetron and the second magnetron are arranged on the same outer wall of the cavity at intervals; or the first magnetron and the second magnetron are respectively positioned on different outer walls of the cavity.

In one possible embodiment, the first magnetron and the second magnetron are attached to an outer top wall and an outer bottom wall of the cavity, respectively.

In one possible embodiment, the heat pipe assembly comprises at least a first annular heat pipe and a second annular heat pipe.

In one possible embodiment, the second annular heating tube is arranged coaxially inside the first annular heating tube.

In a possible implementation manner, a fan is further arranged in the shell, the fan is connected to the outer wall of the back plate of the cavity, fan blades of the fan extend into the cavity, and the heating pipe assembly is located on the periphery of the fan blades.

In a possible implementation mode, the cavity is further provided with an air guide cover, the air guide cover is installed on the inner wall of the back plate of the cavity and located on the front side of the fan blades, the middle of the air guide cover is provided with a plurality of air inlet holes, and the edge of the air guide cover is provided with a plurality of air outlet holes.

In a possible embodiment, the side wall of the cavity is provided with at least one steam hole communicated with the inside of the cavity, and the outlet of the steam generator is communicated with the steam hole.

In one possible embodiment, the steam vents are disposed proximate to the inner bottom wall of the cavity.

In one possible embodiment, the microwave generating assembly further comprises first and second microwave conduits connected to the first and second magnetrons, respectively, through which microwaves are transmitted into the cavity.

The microwave steaming and baking oven provided by the utility model has the advantages that the microwave generating component, the heating pipe component and the steam generator are arranged in the shell, so that various functions of heating food by microwave, steaming food, steaming and baking food and the like can be realized, the functions are more abundant, and the taste and appearance of the food can be improved; the outer wall of the cavity is provided with the at least two magnetrons, so that the microwave radiation range and efficiency can be improved, the heat conversion efficiency is improved, and the food heating efficiency is further improved; through setting up annular heating pipe, annular heating pipe's heat radiation scope is wider, and is bigger to the effective heat radiation area of food, and this makes the setting of heating pipe more reasonable, can improve heating efficiency and the heating homogeneity of heating pipe to food.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention. For a person skilled in the art, without inventive effort, further figures can be obtained from these figures.

Fig. 1 is a schematic view of an internal structure of a microwave steaming and baking oven provided in an embodiment of the present invention;

fig. 2 is an internal cross-sectional view of a microwave steaming oven according to an embodiment of the present invention;

fig. 3 is an internal cross-sectional view of another perspective of a microwave steaming oven according to an embodiment of the present invention.

Description of reference numerals:

100-a housing; 110-a door; 120-a control panel; 200-a cavity; 210-steam vents; 220-a wind scooper; 221-air inlet holes; 222-air outlet holes; 230-steam exhaust holes; 300-a microwave generating assembly; 310-a magnetron assembly; 311-magnetron; 311 a-first magnetron; 311 b-second magnetron; 321-a first microwave catheter; 322-a second microwave catheter; 400-heating tube assembly; 410-annular heating tube; 410 a-a first annular heating tube; 410 b-a second annular heating tube; 500-a steam generator; 600-a fan; 610-fan blades; 700-a transformer assembly; 710-a first transformer; 720-a second transformer; 800-a capacitive component; 810-a first capacitance; 820-second capacitance.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Microwave oven, steam ager and oven on the present market are the equipment that possesses single heating function, and the user need purchase microwave oven, steam ager or oven respectively alone, if need realize the heating to different food through the heating methods of multiple difference, then need purchase microwave oven, steam ager and oven simultaneously, so not only need occupy great parking space, the price of spending is also higher moreover.

In order to enrich the functions of cooking appliances, a microwave oven combining a microwave oven and an oven is developed, and the microwave oven has the functions of microwave heating and baking heating, so that the functions of the microwave oven or the oven which is only an electric appliance with a single function are enriched, the occupied space is reduced, and the purchase cost is saved.

However, the microwave oven still has a single function, and the cooked food is dry due to the evaporation of water in the food and has poor taste; in addition, the existing cooking appliances also have the problems of low heating efficiency and uneven heating.

Therefore, the embodiment provides a microwave steaming oven to solve the problem of current cooking appliance function singleness, promote the taste of the food of cooking out, and can improve its heating efficiency and heating homogeneity.

Fig. 1 is a schematic view of an internal structure of a microwave steaming and baking oven provided in an embodiment of the present invention; fig. 2 is an internal cross-sectional view of a microwave steaming oven according to an embodiment of the present invention; fig. 3 is an internal cross-sectional view of another perspective of a microwave steaming oven according to an embodiment of the present invention.

As shown in fig. 1 to 3, the present embodiment provides a microwave steaming oven, which includes an outer shell 100, a cavity 200 disposed in the outer shell 100, a microwave generating assembly 300, a heating tube assembly 400, and a steam generator 500.

The microwave steaming and baking apparatus provided in the present embodiment includes a housing 100, and illustratively, the housing 100 may include a front surface, a rear surface opposite to the front surface, top and bottom surfaces connected to upper and lower ends of the front and rear surfaces, and left and right side surfaces connected to left and right sides of the front and rear surfaces. The front, back, top, bottom, left side and right side may enclose an enclosed space, and a door 110 capable of being opened may be provided on the front of the casing 100.

The cavity 200 is disposed inside the casing 100, and the cavity 200 is used for placing food to be cooked. The front face of the cavity 200 is generally open, and the back plate, the top wall, the bottom wall, the left side wall and the right side wall of the cavity 200 enclose the cavity 200 with an open front face. The back plate, the top wall, the bottom wall, the left side wall and the right side wall of the cavity 200 respectively correspond to the back surface, the top surface, the bottom surface, the left side surface and the right side surface of the housing 1.

The door 110 provided on the housing 100 is generally positioned at the front surface of the cavity 200, and the door 110 is opened to expose an opening at the front surface of the cavity 200, through which food is put into or taken out of the cavity 200.

Wherein the microwave generating assembly 300 includes a magnetron assembly 310, and the magnetron assembly 310 includes at least two magnetrons 311 attached to an outer wall of the cavity 200.

As shown in fig. 1 to 3, a microwave generating assembly 300 is further disposed in the casing 100, and the microwave generating assembly 300 is used for generating microwaves and transmitting the microwaves into the cavity 200, so as to heat food by the microwaves, thereby implementing the function of the microwave steaming oven for heating food by the microwaves.

Specifically, the microwave generating assembly 300 includes a magnetron assembly 310, and the magnetron assembly 310 is used for generating microwave energy, so that the microwave energy generated by the magnetron assembly 310 is further introduced into the cavity 200. Wherein the magnetron assembly 310 includes at least two magnetrons 311 attached to the outer wall of the chamber 200.

At present, microwave ovens or microwave ovens with a baking and heating function are all in a single magnetron arrangement mode, a single magnetron is fixed on one side of the outside of a cavity 200, for example, the single magnetron is fixed on the outer side of the top of the cavity 200, the power generated by the single magnetron and used for transmitting microwave energy is low, the heating efficiency of food is low, the microwave emission direction is single, the heating of the food is uneven, and the heating speed of the food is low and the heating effect is poor.

In the present embodiment, at least two magnetrons 311 are provided, that is, the magnetron assembly 310 includes more than two magnetrons 311. Taking the magnetron assembly 310 including the two magnetrons 311 as an example, the two magnetrons 311 can both generate microwave energy and transmit the microwave energy into the cavity 200, so that the power of the microwave energy generated and transmitted by the magnetron assembly 310 can be increased, and the power of the microwave energy emitted by the magnetron assembly 310 is higher, so that the heating efficiency of food can be increased; and the radiation area of the microwave energy emitted by the two magnetrons 311 is larger, so that the food is heated more uniformly, and the heating speed and the heating effect of the microwave oven for heating the food by using microwaves can be improved.

It can be understood that, in order to effectively increase the power of the microwave energy emitted from the magnetron assembly 310 and the microwave radiation coverage area, more than two magnetrons 311 may be connected to the outer wall of the cavity 200, for example, the number of the magnetrons 311 arranged on the outer wall of the cavity 200 is three, four, etc., and the plurality of magnetrons 311 are arranged at intervals, which is not limited in this embodiment.

The heating tube assembly 400 includes at least one annular heating tube 410 connected within the chamber 200, the annular heating tube 410 being disposed on a back plate of the chamber 200.

As shown in fig. 1 to 3, a heating tube assembly 400 is further disposed in the housing 100, and the heating tube assembly 400 is used for performing thermal radiation heating on the food to achieve a grilling heating function on the food. Specifically, the heating tube assembly 400 is disposed in the cavity 200, such that heat energy generated by the heating tube assembly 400 is directly radiated to the food.

Wherein, the heating pipe assembly 400 includes at least one annular heating pipe 410 installed in the cavity 200, specifically, as shown in fig. 2 and 3, the annular heating pipe 410 is integrally of an annular structure, the annular heating pipe 410 is connected to the back plate of the cavity 200, and the heat radiation generated by the annular heating pipe 410 can be radiated from one side of the back plate toward the front side of the cavity 200, so as to heat-radiate the food positioned at the front side of the back plate.

Through setting up the heating pipe in the heating pipe subassembly 400 as annular heating pipe 410, the circumference of annular heating pipe 410 is its heating surface for a circle, and annular heating pipe 410's heat radiation scope is wider. Taking the example that food is placed in the cavity 200 and can rotate in the cavity 200, the effective heat radiation area of the annular heating tube 410 can cover all areas from the top to the bottom of the food, and through the rotation of the food, the annular heating tube 410 can uniformly heat all parts of the food, so that the heating efficiency and the heating uniformity of the annular heating tube 410 can be improved.

For some foods needing to keep moisture in the heating process, such as steamed buns, steamed stuffed buns and the like, the foods are heated by microwave heating and/or the annular heating pipe 410, so that the moisture in the foods can be evaporated in the heating process, and the heated foods are dry and poor in taste.

In view of this, as shown in fig. 1, in the present embodiment, a steam generator 500 is further disposed in the casing 100 of the microwave steaming and baking oven, the steam generator 500 is disposed outside the cavity 200, and an outlet of the steam generator 500 is communicated with the inside of the cavity 200.

The steam generator 500 is used for heating water and converting the water into steam for output. The outlet of the steam generator 500 is communicated with the inside of the cavity 200, so that the steam can be conveyed into the cavity 200, and the moisture can be supplemented into the cavity 200 in time.

The steam generator 500 is used for supplementing water into the cavity 200, so that the humidity in the cavity 200 is maintained, the food can be prevented from drying, the appearance of the heated food is good, and the taste is good.

So, the microwave steam oven of this embodiment takes place subassembly 300, heating pipe assembly 400 and steam generator 500 through setting up the microwave, makes microwave steam oven set up microwave heating, baking heating and evaporates three kinds of functions of system heating, has richened microwave steam oven's function, realizes above-mentioned three kinds of functions through a cooking appliance, has saved and has taken up an area of the space, has practiced thrift the acquisition cost.

Meanwhile, the at least two magnetrons 311 are arranged on the outer wall of the cavity 200, so that the microwave transmission power can be improved, the microwave heating efficiency on food can be improved, the radiation area of microwave energy can be increased, the heating uniformity on food can be improved, and the heating rate and the heating effect of the microwave steaming oven on the food can be improved.

It should be noted that, the microwave steaming and baking oven provided in this embodiment can separately realize the microwave heating function, the baking heating function, and the steaming heating function; or simultaneously realize two functions, such as simultaneously realizing a microwave heating function and a baking heating function, and simultaneously realizing a baking heating function and a steaming heating function; or the matching realization mode of the three functions is controlled according to the heating requirements of foods with different properties. In the following, the magnetron assembly 310 is described as including two magnetrons 311, and the two magnetrons 311 are respectively a first magnetron 311a and a second magnetron 311 b.

In some embodiments, when the microwave heating function of the microwave oven is used, the first and second magnetrons 311a and 311b simultaneously emit microwaves into the interior of the cavity 200, which are received in the cavity 200, to microwave-heat the food.

In the process, if food such as steamed bread, steamed stuffed bun and the like is heated, the steam generator 500 can release steam into the cavity 200 at the same time, and the humidity in the cavity 200 is controlled, so that the food is prevented from drying out, and the taste of the food is improved; or, if the food such as toast is made, the microwave heating and the heat radiation heating can be performed on the food directly through the annular heating tube 410, so that the food has the characteristic of toasting the food in appearance, color and taste.

In some other embodiments, the microwave oven can operate in a steaming mode by controlling the heating tube assembly 400 to generate heat, and according to the requirement of the food to be steamed, a large amount of steam is delivered into the cavity 200 through the steam generator 500, so that the inside of the cavity 200 is kept at high temperature, high humidity and high pressure, and the food in the cavity 200 is gradually heated and cooked under the high temperature, high humidity and high pressure environment.

Alternatively, the microwave oven operating in the steaming mode may control only the steam generator 500 to be turned on, and the heating tube assembly 400 does not operate, so that a large amount of steam is supplied into the cavity 200 only through the steam generator 500 to cook the food.

In other embodiments, the microwave oven may operate in a cook mode that is primarily directed to food items that require cooking. At this time, the heating pipe assembly 400 is controlled to heat, and a small amount of steam is released into the cavity 200 through the steam generator 500 according to the requirement of the food to be baked, so that the steam can infiltrate into the surface of the food, the food is prevented from being dried when the food has the appearance, color and taste of baking, and the taste of baking the food is improved.

It should be noted that, according to actual requirements, in the process of cooking food by heating through the microwave steaming and baking oven, according to requirements of food with different properties, no matter whether the microwave steaming and baking oven needs to work in the steaming mode or in the steaming and baking mode, the microwave generating assembly 300 may be controlled to perform microwave heating on the food for a period of time, and after the food is heated to a certain degree by microwave, the microwave generating assembly then works in the steaming mode or in the steaming and baking mode. In this embodiment, the switching of the operation modes of the microwave steaming and baking oven and the mode of the mutual cooperation are not particularly limited.

As shown in fig. 1 to 3, the first magnetron 311a and the second magnetron 311b are used to generate microwaves, and both are disposed outside the cavity 200, so that the microwaves need to be transmitted into the cavity 200 as well. In this embodiment, the microwave generating assembly 300 further includes a first microwave guide 321 and a second microwave guide 322 connected to the first magnetron 311a and the second magnetron 311b, respectively, and the microwaves are transmitted into the cavity 200 through the first microwave guide 321 and the second microwave guide 322.

Specifically, the first microwave guide 321 is connected to the first magnetron 311a, the second microwave guide 322 is connected to the second magnetron 311b, and the first microwave guide 321 and the second microwave guide 322 may be attached to the outer wall of the chamber 200, for example. The microwaves generated by the first and second magnetrons 311a and 311b enter the first and second microwave guide pipes 321 and 322, respectively, and are introduced into the chamber 200 through the first and second microwave guide pipes 321 and 322. Wherein, the microwave entrance on cavity 200 can be provided with the microwave agitator, and the microwave agitator can be connected with the motor for example, stirs the microwave through the microwave agitator to make the microwave that gets into cavity 200 launch to all directions, improve the homogeneity of microwave radiation in cavity 200.

As to how to control the operation of the magnetron assembly 310, the heating tube assembly 400 and the steam generator 500, as shown in fig. 1 to 3, the microwave oven of the present embodiment is further provided with a control board 120, the magnetron assembly 310, the heating tube assembly 400 and the steam generator 500 are all electrically connected to the control board 120, and the control board 120 is used for controlling the operation of the magnetron assembly 310, the heating tube assembly 400 and the steam generator 500.

For example, when the food is heated by microwaves, the control board 120 controls the first magnetron 311a and the second magnetron 311b to work to generate microwaves, the microwaves are transmitted into the cavity 200 through the first microwave guide pipe 321 and the second microwave guide pipe 322, respectively, and the food in the cavity 200 is heated by receiving the microwaves; when the food is heated by the heat radiation, the operation of the annular heating pipe 410 is controlled by the control board 120, and the heat of the annular heating pipe 410 is directly radiated to the food to heat the food; alternatively, when steam is required to heat food, the control board 120 controls the steam generator 500 to operate, and the steam generator 500 delivers steam into the cavity 200 to heat food by the high-temperature steam.

In addition, as shown in fig. 1 to 3, in the present embodiment, a transformer assembly 700 and a capacitor assembly 800 connected to the transformer assembly 700 are further disposed in the housing 100 of the microwave steaming oven, and the capacitor assembly 800 is connected to the magnetron assembly 310. The transformer assembly 700 and the capacitor assembly 800 are provided in the case 100 for controlling the magnetron assembly 310.

Specifically, transformer assembly 700 includes a first transformer 710 and a second transformer 720, and capacitor assembly 800 includes a first capacitor 810 and a second capacitor 820. The first transformer 710 and the first capacitor 810 are electrically connected to the first magnetron 311a in sequence, the first transformer 710 is used for adjusting a voltage (for example, 220V of a standard commercial power) to a voltage required by the operation of the first magnetron 311a, and the first capacitor 810 is used for stabilizing the voltage of the first magnetron 311 a; accordingly, the second transformer 720, the second capacitor 820 and the second magnetron 311b are electrically connected in sequence, and are not described herein again.

As mentioned above, in the microwave oven of the present embodiment, the first magnetron 311a and the second magnetron 311b are connected outside the cavity 200, and in a possible implementation, the first magnetron 311a and the second magnetron 311b may be disposed at an interval on the same outer wall of the cavity 200.

By disposing the first magnetron 311a and the second magnetron 311b at intervals on the same outer wall of the cavity 200, for example, the first magnetron 311a and the second magnetron 311b are disposed at intervals on the outer top wall of the cavity 200, and correspondingly, the first microwave guide 321 and the second microwave guide 322 may also be disposed at intervals on the outer top wall of the cavity 200, so that the microwaves emitted by the first magnetron 311a and the second magnetron 311b enter the cavity 200 from the outer top wall of the cavity 200, and because of the certain distance between the first magnetron 311a and the second magnetron 311b, the radiation area of the microwaves in the cavity 200 may be increased, and in addition, the microwave stirrer stirs the microwaves entering the cavity 200, the uniform dispersion of the microwaves in the cavity 200 may be further enhanced, and the food may be uniformly heated.

In another possible embodiment, the first magnetron 311a and the second magnetron 311b may be respectively located on different outer walls of the cavity 200, and the first microwave conduit 321 and the second microwave conduit 322 are respectively located on different outer walls of the cavity 200, for example, the first magnetron 311a and the first microwave conduit 321 are located on an outer top wall of the cavity 200, and the second magnetron 311b and the second microwave conduit 322 are located on a left side wall, a right side wall or an outer bottom wall of the cavity 200. Therefore, the microwaves generated by the first magnetron 311a and the second magnetron 311b enter the cavity 200 from different side walls of the cavity 200, so that the radiation area of the microwaves in the cavity 200 can be increased, and the heating uniformity of the microwaves on food is improved.

As shown in fig. 1 to 3, in one embodiment, the first magnetron 311a and the second magnetron 311b may be respectively connected to an outer top wall and an outer bottom wall of the cavity 200. Specifically, the first magnetron 311a is disposed on the outer top wall of the chamber 200, and the first microwave guide 321 is correspondingly disposed on the outer top wall of the chamber 200, for example, the first microwave guide 321 is attached to the outer top wall of the chamber 200; the second magnetron 311b is disposed on the outer bottom wall of the cavity 200, and the second microwave guide 322 is correspondingly disposed on the outer bottom wall of the cavity 200, for example, the second microwave guide 322 is disposed on the outer bottom wall of the cavity 200.

By respectively arranging the first magnetron 311a and the second magnetron 311b at the top and the bottom of the cavity 200, when the food is heated by microwave, the first magnetron 311a and the second magnetron 311b respectively transmit the microwave into the cavity 200 from the top and the bottom of the cavity 200, for example, microwave inlets on the cavity 200 are respectively located at the central parts of the top and the bottom, so that the upper part and the lower part of the food in the cavity 200 can both receive the microwave, and by simultaneously heating the upper part and the lower part of the food, the food is heated more uniformly, and the quality of the food can be improved.

As shown in fig. 2 and 3, in particular, in the present embodiment, the heating tube assembly 400 may include at least two annular heating tubes 410. Wherein the two annular heating pipes 410 include a first annular heating pipe 410a and a second annular heating pipe 410b, and the second annular heating pipe 410b is coaxially disposed inside the first annular heating pipe 410 a.

The heating power of the heating tube assembly 400 can be increased by disposing a plurality of annular heating tubes 410 in the cavity 200, so as to increase the heating efficiency of the heating tube assembly 400 for food. The plurality of annular heating pipes 410 may be distributed in different areas of the back plate at intervals in a staggered manner, or the plurality of annular heating pipes 410 may be sleeved inside and outside, which is not limited in this embodiment.

Through installing a plurality of annular heating pipes 410 on the backplate at cavity 200, and then the different regions of food are concentrated in the heat radiation region of different annular heating pipes 410, when improving the heating efficiency to food, can improve the heating homogeneity to food, and then promote the quality of food.

Illustratively, the heat pipe assembly 400 includes a first annular heat pipe 410a and a second annular addition pipe 410b, the first annular heat pipe 410a and the second annular heat pipe 410b being coaxially arranged, and the second annular heat pipe 410b being located inside the first annular heat pipe 410 a. Such that the heat radiation zone of the first annular heat pipe 410a is relatively concentrated at the circumferential edge region of the chamber and the heat radiation zone of the second annular heat pipe 410b is relatively concentrated at the central region of the chamber, the first and second annular heat pipes 410a and 410b work together to expand the heat radiation range of the heat pipe assembly 400 and improve the heat radiation uniformity thereof.

It is understood that the heating pipe assembly 400 of the present embodiment is not limited to include only the first annular heating pipe 410a and the second annular heating pipe 410b sleeved inside and outside, and may further include a third annular heating pipe, a fourth annular heating pipe, and the like sleeved inside the second annular heating pipe 410b, and may also include a fifth annular heating pipe, a sixth annular heating pipe, and the like sleeved outside the first annular heating pipe 410a, which may be determined according to practical situations, and the present embodiment is not limited thereto.

It should be noted that, in this embodiment, according to the requirements of different foods, one annular heating pipe 410 or at least two annular heating pipes 410 can be controlled to be turned on simultaneously, so as to control the heating power of the foods; and the first annular heating pipe 410a located at the outer side or the second annular heating pipe 410b located at the inner side can be controlled to be opened according to the specification parameters such as the volume and the size of the food, which is not limited in this embodiment.

For the delivery of the steam generated by heating the steam generator 500 into the cavity 200, specifically, as shown in fig. 2 and 3, at least one steam hole 210 may be provided on a side wall of the cavity 200 and communicate with the interior thereof, and an outlet of the steam generator 500 communicates with the steam hole 210.

By providing the steam hole 210 on the sidewall of the cavity 200, the outlet of the steam generator 500 may communicate with the steam hole 210 through a pipe, for example, so that the steam generated in the steam generator 500 may enter the cavity 200 through the steam hole 210 to steam-heat the food in the cavity 200.

Wherein the steam holes 210 may be disposed near an inner bottom wall of the cavity 200. After the steam enters the cavity 200, the steam moves towards the top of the cavity 200, the steam holes 210 are arranged at the position, close to the inner bottom wall, of the cavity 200, the moving area of the steam covers most of the area in the cavity 200, and therefore all parts of food can be better moistened, and the taste of the food is effectively improved.

For example, steam holes 210 may be formed in the left and right sidewalls of the cavity 200 near the inner bottom wall, and steam enters the cavity 200 from both sides of the cavity 200, so that the steam heating efficiency is higher and the food is heated more uniformly.

In addition, as shown in fig. 1, in order to ensure the pressure balance in the chamber 200, a steam discharge hole 230 is further formed on the chamber 200 to discharge steam in the chamber 200 through the steam discharge hole 230. For example, the steam discharge hole 230 may be provided on a side wall or a back plate of the chamber body 200, and the steam discharge hole 230 may be provided on the chamber body 200 near a top wall. The steam discharge hole 230 may be connected to a conduit provided in the casing 100, the conduit being connected to the outside of the casing 100, and the excess steam being guided out of the microwave oven through the conduit.

Since the annular heating pipe 410 and the steam hole 210 are usually disposed at a fixed position of the cavity 200, in order to further improve the heating efficiency and the heating uniformity of the thermal radiation heating and the steam heating, in one possible embodiment, a fan 600 may be further disposed in the housing 100, the fan 600 is connected to the outer wall of the back plate of the cavity 200, and the fan blade 610 of the fan 600 extends into the cavity 200.

As shown in fig. 1 to 3, the blower 600 is mounted on the outer wall of the back plate of the cavity 200, the back plate of the cavity 200 may be provided with mounting holes, and the fan blades 610 of the blower 600 extend into the cavity 200 through the mounting holes. Through the rotation of the fan blades 610, the heat radiation energy generated by the annular heating pipe 410 can be more uniform in the cavity 200, hot air circulation is formed in the cavity 200, and the heating efficiency and the heating uniformity of the annular heating pipe 410 to food are improved; similarly, the rotation of the fan blades 610 can make the steam entering the cavity 200 more uniformly dispersed, so as to accelerate the movement rate of the steam, thereby improving the steam heating efficiency and the heating uniformity of the food.

Wherein, because the fan blade 610 and the heating tube assembly 400 are both located at one side of the back plate inside the cavity 200, for the position relationship between the fan blade 610 and the heating tube assembly 400, specifically, the heating tube assembly 400 is located at the periphery of the fan blade 610.

Taking the heating pipe assembly 400 as an example, which includes a first annular heating pipe 410a and a second annular heating pipe 410b sleeved inside and outside, the second annular heating pipe 410b is located at the circumferential outer side of the fan blade 610, and the first annular heating pipe 410a is located at the circumferential outer side of the second annular heating pipe 410 b. For example, the fan blades 610, the second annular heating pipe 410b, and the first annular heating pipe 410a may be coaxially disposed.

So, the flabellum 610 is through making the air rotary motion in the cavity, and the wind direction that blows off from flabellum 610 moves its circumference outside, can pass through second annular heating pipe 410b and first annular heating pipe 410a in proper order, and second annular heating pipe 410b and first annular heating pipe 410a heat the air in proper order like this, so that the wind that blows off from flabellum 610 forms the hot-blast circulation, can further improve the temperature of the air in the cavity 200, and can improve the heat radiation efficiency of heating pipe assembly 400, and then improve heating pipe assembly 400 heating rate and the heating homogeneity of food.

In a specific embodiment, the cavity 200 may further include an air guiding cover 220, the air guiding cover 220 is mounted on an inner wall of the back plate of the cavity 200 and located on a front side of the fan blade 610, a plurality of air inlet holes 221 are formed in a middle portion of the air guiding cover 220, and a plurality of air outlet holes 222 are formed in an edge of the air guiding cover 220.

As shown in fig. 3, the air guiding cover 220 is disposed in the cavity 200 corresponding to the front side of the fan blade 610, and the air guiding cover 220 is disposed at the front side of the air outlet side of the fan 600 for guiding the air inlet and outlet of the fan 600. Specifically, a plurality of air inlet holes 221 are formed in a central region of the air guiding cover 220, a plurality of air outlet holes 222 are formed in an edge region of the air guiding cover 220, for example, a plurality of air outlet holes 222 are formed in positions, close to four corners, of the air guiding cover 220, or a plurality of air outlet holes 222 are formed in the whole annular region, close to the edge, of the air guiding cover 220.

When the fan blade 610 of the fan 600 rotates, air is sucked from the air inlet 221 of the air guiding cover 220, and then the air is blown out from the air outlet 222 of the edge area of the air guiding cover 220, so that air circulation can be formed in the cavity 200, and uniform hot air circulation and steam circulation are formed in the cavity 200, so that the heating efficiency and the heating uniformity of the microwave oven on food are further improved, and the appearance and the taste of the food are further improved.

The fan 600 sucks air from the central portion of the air guiding cover 220, blows the air out of the edge area of the air guiding cover 220, the blown air is discharged after passing through the heating pipe assembly 400 arranged at the periphery of the fan blade 610, for example, the air is discharged into the cavity 200 after passing through the second annular heating pipe 410b and the first annular heating pipe 410a in sequence, so that the air in the cavity 200 can be fully heated by the heating pipe assembly 400, on one hand, the utilization rate of heat radiation to the heating pipe assembly 400 can be improved, on the other hand, the circulation efficiency of hot air in the cavity 200 can be improved, and thus, the heating efficiency and the heating uniformity of food can be further improved.

According to the microwave steaming and baking oven provided by the embodiment, the microwave generating assembly, the heating pipe assembly and the steam generator are arranged in the shell, so that multiple functions of heating food by microwave, steaming and heating food, steaming and baking to heat food and the like can be realized, the functions are richer, and the taste and appearance of the food can be improved; the outer wall of the cavity is provided with the at least two magnetrons, so that the microwave radiation range and efficiency can be improved, the heat conversion efficiency is improved, and the food heating efficiency is further improved; through setting up annular heating pipe, annular heating pipe's heat radiation scope is wider, and is bigger to the effective heat radiation area of food, and this makes the setting of heating pipe more reasonable, can improve heating efficiency and the heating homogeneity of heating pipe to food.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A microwave steaming and baking oven is characterized by comprising a shell, and a cavity, a microwave generating component, a heating pipe component and a steam generator which are arranged in the shell; the microwave generating assembly comprises a magnetron assembly, and the magnetron assembly comprises at least two magnetrons connected to the outer wall of the cavity; the heating pipe assembly comprises at least one annular heating pipe connected in the cavity, and the annular heating pipe is arranged on a back plate of the cavity; the steam generator is arranged outside the cavity, and an outlet of the steam generator is communicated with the inside of the cavity.

2. A microwave steaming oven as claimed in claim 1, wherein the at least two magnetrons comprise a first magnetron and a second magnetron, the first magnetron and the second magnetron being spaced apart on a same outer wall of the cavity; or the first magnetron and the second magnetron are respectively positioned on different outer walls of the cavity.

3. A microwave steaming oven as claimed in claim 2, wherein the first and second magnetrons are connected to the outer top and bottom walls of the cavity respectively.

4. A microwave steaming oven as defined in any one of claims 1 to 3, wherein the heat pipe assembly comprises at least a first annular heat pipe and a second annular heat pipe.

5. A microwave steaming oven as claimed in claim 4, wherein the second annular heating duct is disposed coaxially inside the first annular heating duct.

6. A microwave steaming and baking oven as claimed in claim 5, wherein a fan is further provided in the housing, the fan is connected to the outer wall of the back plate of the cavity, a fan blade of the fan extends into the cavity, and the heating pipe assembly is located at the periphery of the fan blade.

7. The microwave steaming and baking oven according to claim 6, wherein a wind scooper is further disposed in the cavity, the wind scooper is mounted on an inner wall of a back plate of the cavity and located on a front side of the fan blades, a plurality of wind inlet holes are disposed in a middle of the wind scooper, and a plurality of wind outlet holes are disposed at an edge of the wind scooper.

8. A microwave steaming oven according to any one of claims 1 to 3, wherein the side wall of the cavity is provided with at least one steam vent communicating with the interior thereof, the outlet of the steam generator being in communication with the steam vent.

9. A microwave steaming oven as claimed in claim 8, wherein the steam vents are provided adjacent an inner bottom wall of the cavity.

10. A microwave cooking oven according to claim 2, wherein the microwave generating assembly further comprises first and second microwave conduits connected to the first and second magnetrons, respectively, through which microwaves are transmitted into the cavity.

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