CN210673106U - Hot air generating device and oven with same - Google Patents

Abstract

The utility model discloses a hot-blast generating device and oven that has it, hot-blast generating device includes: the first air guide sleeve is internally provided with an inner cavity with an opening; the air guide sheet covers the opening, a first air inlet is formed in the air guide sheet, and a plurality of first air outlets which are arranged around the first air inlet and are radially distributed are further formed in the air guide sheet; the hot air wind wheel is arranged in the inner cavity, and the center of the hot air wind wheel is opposite to the first air inlet; the first heating piece is arranged between the hot air wind wheel and the first air outlet; the driving piece is connected with the hot air wind wheel. According to the utility model discloses hot-blast generating device, be equipped with first air intake on the guide vane, still be equipped with on the guide vane and encircle a plurality of first air outlets that first fresh air inlet set up and be radial arrangement for hot-blast generating device's air-out is even.

Description

Hot air generating device and oven with same

Technical Field

The utility model relates to a cooking equipment technical field particularly, relates to a hot-blast generating device and oven that has it.

Background

In the correlation technique, hot-blast generating device's air outlet can not set up the guide vane usually, like this, when hot-blast generating device provided hot-blast to the culinary art intracavity, it is often not even enough hot-blast, can't evenly toast the food in the culinary art intracavity, even set up the guide vane at the air outlet, the structure of guide vane also can produce great windage, cause the amount of wind to lose, in addition, the guide vane also can will generate heat a and keep apart with the culinary art chamber, lead to generating heat the thermal radiation that a sends to be kept apart, can't color food fast.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least.

Therefore, an object of an embodiment of the present invention is to provide a hot air generator, which has uniform air outlet.

An object of the embodiment of the second aspect of the present invention is to provide an oven with the above hot air generating device, which can heat food uniformly.

According to the utility model discloses hot-blast generating device of first aspect embodiment, hot-blast generating device includes: the first air guide sleeve is internally provided with an inner cavity with an opening; the air guide sheet covers the opening, a first air inlet is formed in the air guide sheet, and a plurality of first air outlets which are arranged around the first air inlet and are radially distributed are further formed in the air guide sheet; the hot air wind wheel is arranged in the inner cavity, and the center of the hot air wind wheel is opposite to the first air inlet; the first heating piece is arranged between the hot air wind wheel and the first air outlet; the driving piece is connected with the hot air wind wheel.

According to the utility model discloses hot-blast generating device, be equipped with first air intake on the guide vane, still be equipped with on the guide vane and encircle a plurality of first air outlets that first fresh air inlet set up and be radial arrangement for hot-blast generating device's air-out is even.

In addition, the hot air generator according to the above embodiment of the present invention may further have the following additional technical features:

according to the utility model discloses an embodiment, first air outlet includes follows a plurality of air outlet groups of arranging of circumference interval of wind-guiding piece, every air outlet group all includes the edge a plurality of radially arranging of wind-guiding piece first air outlet, and a plurality of air outlet group is radial distribution.

According to the utility model discloses an embodiment, every a plurality of in the air outlet group the edge of first air outlet the width of aviation baffle radial direction is inequality.

According to the utility model discloses an embodiment, at least one the great first air outlet of width in the air outlet group is close to first air intake sets up, and at least one the great first air outlet of width in the air outlet group is close to the periphery of guide vane sets up.

According to an embodiment of the present invention, the first heat generating member is configured in a vortex shape, and the first heat generating member is opposite to the first air outlet.

According to the utility model discloses an embodiment still includes: the second air guide sleeve is arranged on the outer side of the first air guide sleeve in a covering mode, a heat dissipation cavity is formed between the second air guide sleeve and the first air guide sleeve, heat dissipation holes communicated with the heat dissipation cavity are formed in the second air guide sleeve, and the driving piece is arranged in the heat dissipation cavity.

According to the utility model discloses an embodiment, first kuppe with still be equipped with the heat insulating board between the second kuppe.

According to the utility model discloses an embodiment still includes: the heat dissipation wind wheel is connected with the driving piece, a second air inlet communicated with the heat dissipation cavity is formed in the second flow guide cover, and the heat dissipation wind wheel is suitable for driving airflow to flow from the second air inlet to the heat dissipation holes.

According to an embodiment of the invention, the driving member is a dc motor.

According to the utility model discloses oven of second aspect embodiment includes: a cabinet having a cooking cavity therein; the hot air generating device is connected with the box body, the first air outlet is communicated with the cooking cavity, and the hot air generating device is the hot air generating device.

According to the utility model discloses oven, including foretell hot-blast generating device, this oven can realize the even stoving to eating the material.

According to the utility model discloses an embodiment still includes: the second heating piece is suitable for heating the cooking cavity, and the first heating piece and the second heating piece are mutually independent.

According to the utility model discloses an embodiment, the second generates heat and locates the culinary art chamber top, the second generates heat and includes the at least three heating tube section of arranging in proper order, just the second generates heat and is constructed the heating power that is located the heating tube section in the outside and is greater than the heating power that is located the heating tube section of inboard.

According to an embodiment of the present invention, the second heat generating member further includes: the cold end and the hot end of the special-shaped heating tube are arranged side by side, and the special-shaped heating tube is arranged below the cooking cavity.

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 an exploded view of a hot air generating assembly according to an embodiment of the present invention;

fig. 2 is a bottom view of a hot air generating assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural view of an air guide plate according to an embodiment of the present invention;

fig. 4 is a schematic view illustrating a connection relationship between the driving member, the first wind scooper and the first heat generating member according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view taken along line D-D of FIG. 4;

FIG. 6 is a top view of FIG. 4;

figure 7 is a perspective view of an oven according to one embodiment of the present invention;

figure 8 is a front view of an oven according to one embodiment of the present invention;

FIG. 9 is a cross-sectional view taken along line A-A of FIG. 8;

figure 10 is a top view of an oven according to one embodiment of the present invention.

Reference numerals:

the oven (1) is provided with a baking box,

the hot air generating device 100 is provided with a hot air generating device,

the flow guide sleeve 10, the inner cavity 101,

the air guide plate 20, the first air inlet 21, the first air outlet 22, the first air outlet set 221, the second air outlet set 222, the third air outlet set 223, the fourth air outlet set 224,

a hot wind wheel 30, a first heating member 40, a driving member 50,

a second air guide sleeve 60, a heat dissipation cavity 601, heat dissipation holes 61, a second air inlet 62,

the heat-insulating plate 70, the heat-radiating wind wheel 80,

the combination of the cabinet 200, the cooking chamber 201,

a second heating element 300, a heating tube section 301 and a special-shaped heating tube 302.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "inner", "outer", "axial", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A hot wind generating device 100 and an oven 1 having the same according to an embodiment of the present invention will be described with reference to fig. 1 to 10. As shown in fig. 1 and 2 in conjunction with fig. 4, 5 and 6, a hot air generating apparatus 100 according to an embodiment of the present invention may generally include: the wind guide device comprises a first air guide sleeve 10, an air guide sheet 20, a hot air wind wheel 30, a first heating part 40 and a driving part 50.

Specifically, as shown in fig. 1 with reference to fig. 4 and 5, an inner cavity 101 having an opening is formed in the first air guide sleeve 10, the air guide sheet 20 covers the opening, the air guide sheet 20 is provided with a first air inlet 21, the air guide sheet 20 is further provided with a plurality of first air outlets 22 arranged around the first air inlet and radially arranged, the hot air wheel 30 is disposed in the inner cavity 101, the center of the hot air wheel 30 is opposite to the first air inlet 21, the first heating element 40 is disposed between the hot air wheel 30 and the first air outlets 22, and the driving element 50 is connected to the hot air wheel 30.

The driving member 50 is connected to the hot wind wheel 30, the driving member 50 is adapted to drive the hot wind wheel 30 to rotate, when the hot wind wheel 30 rotates, the driving airflow passes through the first air inlet 21 on the air guiding sheet 20 and flows into the inner cavity 101, then the airflow flows towards the first heating member 40 under the driving of the hot wind wheel 30, and after being heated by the first heating member 40, the heating airflow passes through the first air outlet 22 on the air guiding sheet 20 and is blown out.

As shown in fig. 2 and fig. 3, the plurality of first air outlets 22 are radially arranged around the first air inlet 21, that is, the plurality of first air outlets 22 are radially arranged, so that hot air can be radially supplied into the cooking cavity 201, the flow direction of hot air is good, large-area air supply is realized, the air outlet of the hot air generating device 100 is uniform, the air resistance of the air guide sheet 20 with the structure is small, and the air volume loss is small. Like this, when the hot-blast blows to culinary art chamber 201, can with the even convection heat transfer of the surface of the edible material in the culinary art chamber 201, improve the homogeneity of toasting.

In addition, locate first heating member 40 between hot-blast wind wheel 30 and first air outlet 22, can also make first heating member 40 be close to first air outlet 22 more, increase the heat radiation in the culinary art chamber 201 for the speed of coloring of food.

And, the center of hot-blast wind wheel 30 is relative with first air intake 21, and like this, the air inlet is effectual, is favorable to improving the amount of wind, improves heat exchange efficiency.

From this, according to the utility model discloses hot-blast generating device 100 is through setting up wind-guiding piece 20 to set up first air intake 21 and be a plurality of first air outlets 22 of radial arrangement around first air intake 21 on wind-guiding piece 20, make hot-blast generating device 100's air-out even.

The first air inlet 21 may be a circular hole, a square hole, an elliptical hole, or the like, and the first air outlet 22 may be a circular hole, a square hole, an elliptical hole, a rectangular hole, an arc hole, or the like. Preferably, the first air outlets 22 are arc-shaped holes, and the central angles of the plurality of first air outlets 22 are the same.

In some embodiments, the first air outlet 22 includes a plurality of air outlet groups arranged at intervals along the circumferential direction of the air guiding sheet 20, each air outlet group includes a plurality of first air outlets 22 arranged along the radial direction of the air guiding sheet 20, and the plurality of air outlet groups are radially distributed. In other words, a plurality of first air outlet groups 221 arranged along the radial direction of the air guiding sheet 20 form an air outlet group, and the plurality of air outlet groups are radially arranged around the circumference of the first air inlet 21, so that the integrity of the air guiding sheet 20 is improved, the air duct can be optimized, and the air outlet is more uniform.

In some alternative embodiments, as shown in fig. 3, the widths of the first outlets 22 in each outlet group along the radial direction of the air deflectors 20 are different. Taking an outlet group as an example, the width of any one of the first outlets 22 in the plurality of first outlets 22 in the outlet group is different from the widths of the other first outlets 22, or one of the plurality of first outlet groups 221 in the outlet group is different from the widths of the other first outlets 22 and the widths of the other first outlets 22 are the same. From this, through setting up great first air outlet 22, can reduce the windage, reduce the amount of wind loss, do benefit to the air-out, in addition, first heating member 40 is located between first air outlet 22 and the wind wheel, and the thermal radiation that first heating member 40 sent directly passes first air outlet 22, and the width of first air outlet 22 is great also can increase the thermal radiation.

In some embodiments, as shown in fig. 2 and fig. 3, the first outlet 22 with a larger width in the at least one outlet group is disposed near the first inlet 21, and the first outlet 22 with a larger width in the at least one outlet group is disposed near the periphery of the air guiding plate 20. For example, the first outlet 22 includes four first outlet groups 221, two second outlet groups 222, three outlet groups 223, and four outlet groups 224 arranged around the circumference of the first inlet 21, the larger first outlet 22 of the first outlet group 221 is arranged near the edge of the air guiding plate 20, and the larger first outlet 22 of the second outlet group 222 adjacent to the outlet group is closer to the first inlet 21 than the larger first outlet 22 of the first outlet group 221. Therefore, the space of the air guide sheet 20 can be fully utilized, the air outlet along the radial direction of the air guide sheet 20 is uniform, and the probability of local over-large air volume is reduced. In addition, the heat radiation emitted from the first heat generating part 40 penetrates out of the first air outlet 22, so that the heat radiation is uniform, and the whole surface of the food can be uniformly colored.

In some embodiments, as shown in fig. 1 and 2, the first heat generating element 40 is configured in a vortex shape, and the first heat generating element 40 is opposite to the first air outlet 22. The first heating member 40 is configured in a scroll shape, so that a heating area of the first heating member 40 can be increased, air flow can be uniformly heated, hot air uniformity can be further improved, and food can be uniformly baked. In addition, first heating member 40 is just right with first air outlet 22, and the heat radiation that first heating member 40 distributed out can directly wear out from first air outlet 22, can increase the heat radiation that first heating member 40 gived off to the food surface, and then accelerates to color the speed.

In some embodiments, as shown in fig. 1 and fig. 9, the hot air generating device 100 further includes a second airflow guiding cover 60, the second airflow guiding cover 60 is covered outside the first airflow guiding cover 10, a heat dissipating cavity 601 is formed between the second airflow guiding cover 60 and the first airflow guiding cover 10, a heat dissipating hole 61 communicated with the heat dissipating cavity 601 is formed on the second airflow guiding cover 60, and the driving member 50 is disposed in the heat dissipating cavity 601. Through setting up heat dissipation cavity 601, derive some heat that gives off inner chamber 101 from louvre 61, can guarantee the temperature rise requirement of driving piece 50 and other electrical part. It can be understood that the driving member 50 has a long-term high temperature condition, which affects the service life, and in order to increase the service life of the driving member 50, the present application arranges the driving member 50 in the heat dissipation cavity 601 spaced apart from the inner cavity 101, so that the temperature in the heat dissipation cavity 601 is lower than the temperature in the inner cavity 101 in the working condition, which can increase the service life of the driving member 50.

In some alternative embodiments, as shown in fig. 1, a heat insulation plate 70 is further disposed between the first and second fairings 10, 60. By arranging the heat insulation plate 70, the heat transferred from the inner cavity 101 to the heat dissipation cavity 601 can be reduced, which is beneficial to reducing the temperature in the heat dissipation cavity 601 and playing a role in further protecting the driving member 50. Wherein, the heat insulation plate 70 may cover the outer surface of the first dome 10.

In some alternative embodiments, as shown in fig. 1 and fig. 7, fig. 9, and fig. 10, a heat dissipating wind wheel 80 is further included, the heat dissipating wind wheel 80 is connected to the driving member 50, wherein the second air guide sleeve 60 is provided with a second air inlet 62 communicated with the heat dissipating cavity 601, and the heat dissipating wind wheel 80 is adapted to drive an air flow from the second air inlet 62 to the heat dissipating hole 61. Through setting up heat dissipation wind wheel 80, can accelerate the air current flow in heat dissipation chamber 601, accelerate the heat dissipation, in addition, the air current that passes through second air intake 62 from heat dissipation chamber 601 outside also can take away a part of heat in a part heat dissipation chamber 601, further improves radiating rate, has further protected driving piece 50.

In one embodiment, the drive member 50 is a DC motor. The driving part 50 is set to be the direct current motor, the speed regulation performance of the direct current motor is good, different loads can be added to the direct current motor, the direct current motor has different rotating speeds, in this way, the rotating speeds and the rotating directions of the heat dissipation wind wheel 80 and the hot air wind wheel 30 which are connected with the direct current motor can be adjusted, in this way, when the heating power of the first heating part 40 is adjusted, the rotating speeds of the heat dissipation wind wheel 80 and the hot air wind wheel 30 can be correspondingly adjusted, and therefore the energy utilization rate and the electricity saving can be improved. For example, when the heating power of the first heating element 40 is increased, that is, the heating amount of the first heating element 40 is increased, at this time, the rotating speeds of the heat dissipation wind wheel 80 and the hot wind wheel 30 can be increased, so that the air intake rate in the inner cavity 101 can be increased to improve the heat exchange efficiency, more heat can be taken away by the air flow entering the cavity after exchange, and the energy utilization rate is improved; the air intake in the heat dissipation cavity 601 is increased, the heat dissipation efficiency of the heat dissipation cavity 601 can be improved, and the effect of protecting electric devices such as the driving part 50 is achieved. On the contrary, when the heating power of the first heating element 40 is decreased, that is, the heating amount of the first heating element 40 is decreased, at this time, the rotation speeds of the heat dissipating wind wheel 80 and the hot wind wheel 30 can be decreased, and thus, the electricity can be saved.

The oven 1 according to an embodiment of the present invention, as shown in fig. 7 with reference to fig. 8, 9 and 10, includes a box 200 and a hot air generating device 100, a cooking cavity 201 is provided in the box 200, the hot air generating device 100 is connected to the box 200, the first air outlet 22 is communicated with the cooking cavity 201, and the hot air generating device 100 is the above-mentioned hot air generating device 100.

Through setting up foretell hot-blast generating device 100 on oven 1, first air outlet 22 and culinary art chamber 201 intercommunication, hot-blast first air outlet 22 of passing gets into and cooks the food in the culinary art chamber 201 in can toasting, realizes the fried function of air, because the air-out of the hot-blast generating device 100 of this application is even, consequently, can carry out even toasting to food.

According to the utility model discloses oven 1, through set up foretell hot-blast generating device 100 on oven 1, this oven 1 can evenly toast food.

In some embodiments, the first air inlet 21 is communicated with the cooking cavity 201, and when the oven 1 operates, the cooking cavity 201 is sealed, so that hot air circulation can be formed in the cooking cavity 201, heat loss is avoided, and energy utilization rate is improved.

In some embodiments, as shown in fig. 7 and 9, the oven 1 further includes a second heat generating member 300, the second heat generating member 300 is adapted to heat the cooking cavity 201, and the first heat generating member 40 and the second heat generating member 300 are independent from each other. The second heating element 300 and the first heating element 40 are independent from each other, and when the first heating element 40 works and the second heating element 300 does not work, the air frying function can be realized; when the first and second heat generating members 40 and 300 are simultaneously operated, they can compensate heat generation and accelerate the cooking speed of food. When the second heat generating member 300 is operated and the first heat generating member 40 is not operated, it can play a role of grilling food.

In some alternative embodiments, as shown in fig. 7, 9 and 10, the first heat generating member 40 is disposed above the cooking cavity 201, and the second heat generating member 300 is disposed below the cooking cavity 201, so that both sides of the food can be heated, the food can be heated uniformly, and both sides of the food can be colored.

In some alternative embodiments, as shown in fig. 7 and 9, the second heat generating member 300 is disposed above the cooking cavity 201, the second heat generating member 300 includes at least three heat generating pipe segments 301 arranged in sequence, and the second heat generating member 300 is configured such that the heat generating power of the heat generating pipe segment 301 located at the outer side is greater than the heat generating power of the heat generating pipe segment 301 located at the inner side. For example, the second heat generating component 300 includes three, four, five or six heat generating pipe segments 301 arranged in sequence, it can be understood that the two sides of the heat generating pipe segment 301 located inside all have the heat generating pipe segment 301, the heat emitted from the heat generating pipe segments 301 located on the two sides can radiate to the heat generating pipe segment 301 located inside, so that the heat of the heat generating pipe segment 301 located inside is higher, at this time, the heat generating power of the heat generating pipe segment 301 located inside can be properly reduced, thus, the heat of the heat generating pipe segments 301 is uniform, further, food can be uniformly heated, and electric quantity can be saved.

In some embodiments, as shown in fig. 9, the second heat generating member 300 further includes a shaped heat generating tube 302, the cold end and the hot end of the shaped heat generating tube 302 are arranged side by side, and the shaped heat generating tube 302 is disposed below the cooking cavity 201. It can be understood that the heating tube all has cold junction and hot junction, and through setting up the hot junction and the cold junction with special-shaped heating tube 302 side by side, the hot junction can improve the temperature of cold junction to cold junction radiant energy to make special-shaped heating tube 302 can evenly generate heat, thereby play the effect of even heating food.

The special-shaped heating tube 302 is arranged below the cooking cavity 201, and the heating tube section 301 is arranged above the cooking cavity 201, so that the front and back surfaces of food can be heated, the food is further heated uniformly, and the front and back surfaces of the food can be colored.

In one embodiment, as shown in fig. 9, three heat-generating pipe segments 301 are disposed on the top of the cavity of the oven 1, wherein the heat-generating pipe segments 301 on two sides have the same heat-generating power, and the heat-generating pipe segment 301 in the middle has a lower heat-generating power than the heat-generating pipe segments 301 on two sides, so as to prevent uneven barbecuing caused by the higher temperature in the center of the cavity than the temperatures on two sides during barbecuing and heating. Adopt special-shaped metal tube, and the cold junction and the hot junction of different in nature metal tube set up side by side, can effectively avoid straight metal tube both ends cold junction long, the area of coloring is little, the inhomogeneous condition of coloring.

As shown in fig. 1 with reference to fig. 5 and 9, the hot air generating device 100 includes two parts, one of which includes a dc motor, a heat dissipating wind wheel 80, a second air guide sleeve 60, and a heat insulating plate 70, the heat insulating plate 70 can block a part of heat from being uploaded, the dc motor drives the heat dissipating wind wheel 80 to rotate, the heat dissipating wind wheel 80 is a centrifugal wind wheel, the centrifugal fan blades are used for drawing air from the top of the heat dissipating cavity 601 to cool the dc motor and driving the air flow to be discharged from the heat dissipating ports at the periphery of the second air guide sleeve 60, and the main function of the centrifugal wind wheel is heat dissipation to ensure the temperature rise requirements of the centrifugal motor and other electrical devices. The other part of the cooking device consists of a direct current motor, a hot air wind wheel 30, a first air guide sleeve 10, a first heating piece 40 and an air guide sheet 20, wherein the hot air wind wheel 30 is a centrifugal wind wheel, the first heating piece 40 works or the first heating piece 40 and a second heating piece 300 work together, and the direct current motor drives the hot air wind wheel 30 to rotate, so that the hot air circulation inside the cooking cavity 201 is realized, and the baking function is further realized. The design of the air guide piece 20 mainly ensures that the surface of the baked food is uniformly colored, the scheme can ensure that the coloring is uniform, and the hollow part of the air guide piece 20 can also increase the heat radiation emitted from the first heating piece 40 to the surface of the food, so that the coloring speed is accelerated.

The oven 1 of the present application can control time, temperature and baking modes, respectively. The barbecue mode comprises the following steps: a pure grill mode and an air fry mode or a hybrid mode of both.

In a pure barbecue mode, the top three heating pipe sections 301 can be three metal pipes or quartz pipes, the type of the heating pipe can be selected according to cooking characteristics, three yellow coating heating pipes are selected, the two heating pipe sections 301 on two sides have the same power, the heating pipe section 301 in the middle has lower power, and the three heating pipe sections 301 are connected in parallel or in series; the bottom adopts special-shaped heating tube 302, and the cooperation of upper and lower heating tube can realize conventional barbecue function.

Under the air frying mode, the air current that hot-blast wind wheel 30 blows gets into cooking chamber 201 after first heating element 40 or first heating element 40 and top heating pipe section 301 heating and realizes heated air circulation, and one side of first kuppe 10 is opened has the second air outlet, can be with the oil gas or the moisture of food material derive cooking chamber 201 with the second air outlet together when the air is fried and is dried to realize the effect that the air is fried food material lack of oil and fruit vegetables are dried.

Other constructions and operations of the oven 1 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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 present 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (13)

1. A hot air generating apparatus, comprising:

the first air guide sleeve is internally provided with an inner cavity with an opening;

the air guide sheet covers the opening, a first air inlet is formed in the air guide sheet, and a plurality of first air outlets which are arranged around the first air inlet and are radially distributed are further formed in the air guide sheet;

the hot air wind wheel is arranged in the inner cavity, and the center of the hot air wind wheel is opposite to the first air inlet;

the first heating piece is arranged between the hot air wind wheel and the first air outlet;

the driving piece is connected with the hot air wind wheel.

2. The hot air generating device according to claim 1, wherein the first air outlet includes a plurality of air outlet groups arranged at intervals along a circumferential direction of the air guide plate, each of the air outlet groups includes a plurality of first air outlets arranged along a radial direction of the air guide plate, and the plurality of air outlet groups are radially distributed.

3. The hot air generating apparatus according to claim 2, wherein the widths of the first outlets in each outlet group along the radial direction of the air guiding sheet are different.

4. The hot air generating apparatus according to claim 3, wherein the first outlet with a larger width of the at least one outlet group is disposed near the first inlet, and the first outlet with a larger width of the at least one outlet group is disposed near the periphery of the air guiding plate.

5. The hot air generating device according to claim 1, wherein the first heat generating member is configured in a scroll shape, and the first heat generating member is opposed to the first air outlet.

6. The hot air generating apparatus according to claim 1, further comprising:

the second air guide sleeve is arranged on the outer side of the first air guide sleeve in a covering mode, a heat dissipation cavity is formed between the second air guide sleeve and the first air guide sleeve, heat dissipation holes communicated with the heat dissipation cavity are formed in the second air guide sleeve, and the driving piece is arranged in the heat dissipation cavity.

7. The hot air generating apparatus according to claim 6, wherein a heat insulating plate is further disposed between the first and second fairings.

8. The hot air generating apparatus according to claim 6, further comprising:

the heat radiation wind wheel is connected with the driving piece,

the second air guide cover is provided with a second air inlet communicated with the heat dissipation cavity, and the heat dissipation wind wheel is suitable for driving airflow to flow from the second air inlet to the heat dissipation holes.

9. The hot air generating device according to any of claims 1-8, wherein the driving member is a dc motor.

10. An oven, comprising:

a cabinet having a cooking cavity therein;

the hot air generating device is connected with the box body, the first air outlet is communicated with the cooking cavity, and the hot air generating device is according to any one of claims 1-9.

11. The oven of claim 10, further comprising:

the second heating piece is suitable for heating the cooking cavity, and the first heating piece and the second heating piece are mutually independent.

12. The oven of claim 11, wherein the second heat generating member is disposed above the cooking cavity, the second heat generating member includes at least three heat generating pipe segments arranged in sequence, and the second heat generating member is configured such that the heat generating power of the heat generating pipe segment located at the outer side is greater than the heat generating power of the heat generating pipe segment located at the inner side.

13. The oven of claim 11 or 12, wherein the second heat generating member further comprises:

the cold end and the hot end of the special-shaped heating tube are arranged side by side, and the special-shaped heating tube is arranged below the cooking cavity.

Images