CN220403811U - Hot air oven - Google Patents

Abstract

The utility model discloses a hot air oven which is provided with an inner shell, an outer shell and an air supply assembly. The air supply assembly is arranged between the outer shell and the inner shell, one side of the inner shell which limits the accommodating cavity is not additionally provided with a component for forming an air channel, and the air supply assembly is prevented from forming a cleaning dead angle at the inner side of the inner shell heating cavity. Specifically, the air supply assembly comprises a cover body and an air supply part, wherein the cover body and the air supply part are arranged between the inner shell and the outer shell, the cover body and the inner shell limit an air channel together, and the air supply part is arranged in the air channel. Because the cover body that forms the wind channel is located the one side that the inner shell deviates from the heating chamber, the cover body can not form the clearance dead angle with the inner shell inboard, and the inside wall of heating chamber is regular, on the one hand, and the greasy dirt that the heating food produced is difficult for hiding in the heating chamber, on the other hand, when clearing up the cavity, because the inner shell inboard does not have the dead angle with the housing, the clearance degree of difficulty greatly reduced in heating chamber. The technical scheme of the application is beneficial to keeping the hot air oven clean.

Description

Hot air oven

Technical Field

The utility model relates to the technical field of kitchen electricity, in particular to a hot air oven.

Background

Hot air ovens are very common in daily life, and when a user purchases an oven, a plurality of factors influence the selection of the user, wherein the volume of a heating cavity of the hot air oven and the cleaning convenience of the heating cavity are important factors influencing the selection of the user. The duct system is a key factor affecting the performance of the hot air oven, and in the prior art, the shell forming the duct is mostly arranged on the inner side of the inner shell of the hot air oven. When hot-blast oven heats food, food is placed in the heating chamber, because the casing that forms the wind channel sets up in the heating chamber, can form a lot of dead angles after the wind channel casing is installed in interior casing for the inside shape of interior casing is complicated, and on the one hand, during the use, the greasy dirt that the heating food produced is very easily hidden in these dead angles, on the other hand, when clearing up the oven, and these dead angles have increased the clearance degree of difficulty in the hot-blast oven heating chamber, have reduced user's use experience and have felt.

Disclosure of Invention

The utility model mainly aims to provide a hot air oven which can improve the cleanliness of the hot air oven during use and reduce the cleaning difficulty of a heating cavity of the hot air oven.

In order to achieve the above objective, the present utility model provides a hot air oven, which includes an inner housing, an outer housing, and an air supply assembly. The inner shell defines a heating cavity, and the inner shell is provided with a first through hole and a second through hole. The outer shell is sleeved outside the inner shell. The air supply assembly is arranged between the outer shell and the inner shell and comprises a cover body and an air supply part, the cover body is connected to the wall surface of the inner shell facing the outer shell and jointly defines an air channel with the inner shell, the air channel is communicated with the first through hole and the second through hole, the air supply part is arranged in the air channel, and air flow in the air channel flows from the first through hole to the second through hole through the air supply part.

In some embodiments, the inner housing has a plurality of second through holes, the plurality of second through hole arrays are arranged on the inner housing, and the air duct communicates with the plurality of second through holes.

In some embodiments, the cover has a first wall facing the inner housing, the first wall facing a side facing away from the inner housing being recessed, the first wall and the inner housing together defining the air duct.

In some embodiments, the inner housing has a second wall facing the heating chamber and a third wall, the second wall being disposed adjacent to the third wall, the first through hole being disposed in the second wall, and the second through hole being disposed in the third wall.

In some embodiments, the inner housing has a second wall facing the heating chamber and a third wall, the second wall being disposed opposite the third wall, the first through hole being disposed in the second wall, and the second through hole being disposed in the third wall.

In some embodiments, the inner housing is provided with an opening for taking and placing the article, the inner housing has a back plate opposite to the opening and a first side plate connected with the back plate, the first side plate comprises a second wall surface, and the back plate comprises a third wall surface, so that the second wall surface is adjacent to the third wall surface.

In some embodiments, the blower includes an impeller rotatably coupled to the housing.

In some embodiments, the air supply includes an impeller rotatably coupled to the inner housing.

In some embodiments, the cover includes a first housing and a second housing, the first housing and the inner housing define a first chamber, the first chamber is in communication with the first through hole, the second housing and the inner housing define a second chamber, the second chamber is in communication with the second through hole, and the air supply portion is disposed in the first chamber.

In some embodiments, the hot air oven includes a heating assembly disposed within the tunnel.

In some embodiments, the heating assembly comprises a heating mesh, and the heating mesh separates the first chamber from the second chamber.

In some embodiments, the inner housing is provided with a third through hole, the air duct is communicated with the third through hole, and air flow in the air duct flows from the first through hole to the second through hole and the third through hole respectively through the air supply part.

In some embodiments, the inner housing is provided with an opening for taking and placing the article, the inner housing is provided with a first side plate and a second side plate which are oppositely arranged at two sides of the opening, the inner housing is provided with a third side plate arranged between the first side plate and the second side plate, the first through hole is arranged on the third side plate, the second through hole is arranged on the first side plate, and the third through hole is arranged on the second side plate.

In some embodiments, the hot air oven includes a plurality of air supply assemblies.

Compared with the prior art, the utility model has the beneficial effects that:

in the technical scheme of the utility model, the hot air oven is provided with the inner shell, the outer shell and the air supply assembly, the air supply assembly is arranged between the outer shell and the inner shell, and the part forming the air channel is not added on one side of the inner shell, which limits the accommodating cavity, so that the air supply assembly is prevented from forming a cleaning dead angle on the inner side of the heating cavity of the inner shell. Specifically, the air supply assembly comprises a cover body and an air supply part, wherein the cover body and the air supply part are arranged between the inner shell and the outer shell, the cover body and the inner shell limit an air channel together, and the air supply part is arranged in the air channel. That is, the cover body that forms the wind channel is located the one side that the inner shell deviates from the heating chamber, and the cover body can not form the clearance dead angle with the inner shell inboard, and the heating intracavity space of inner shell is regular, and during the use, on the one hand, the greasy dirt that the heating food produced is difficult for hiding in the heating intracavity, on the other hand, during the clearance cavity, because the inner side of inner shell does not have the dead angle with the housing, the clearance degree of difficulty greatly reduced in heating chamber. The technical scheme of this application can improve the cleanliness factor when hot-blast oven uses to and reduce the heating chamber clearance degree of difficulty.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of a hot air oven according to an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of a hot air oven according to a second embodiment of the present utility model;

FIG. 3 is a schematic side view of a hot air oven according to an embodiment of the present utility model;

FIG. 4 is a schematic rear view of a hot air oven according to an embodiment of the present utility model;

FIG. 5 is a schematic front view of a hot air oven according to an embodiment of the present utility model;

FIG. 6 is a schematic perspective view of a combination of an air supply assembly and a heating assembly according to an embodiment of the present utility model;

FIG. 7 is a schematic perspective view of a combination of a blower assembly and a heater assembly according to another embodiment of the present utility model;

FIG. 8 is a schematic perspective view of a heating assembly according to an embodiment of the present utility model;

FIG. 9 is a schematic side view of the heating assembly of the embodiment of FIG. 8;

FIG. 10 is a schematic perspective view of a hot air oven according to an embodiment of the present utility model, wherein the third side plate is a back plate of the inner housing;

FIG. 11 is a schematic perspective view of a hot air oven according to another embodiment of the present utility model, wherein the third side plate is a top plate of the inner housing;

FIG. 12 is an exploded view of a hot air oven according to an embodiment of the present utility model;

FIG. 13 is a schematic perspective view of a hot air oven with multiple air supply assemblies according to another embodiment of the present utility model;

FIG. 14 is a schematic perspective view of a hot air oven with multiple air supply assemblies according to yet another embodiment of the present utility model;

FIG. 15 is a schematic cross-sectional view of the housing and the inner housing at the first through hole according to an embodiment of the utility model;

fig. 16 is a schematic cross-sectional view of the cover and the inner housing at the first through hole in another embodiment of the utility model.

Reference numerals illustrate:

100-a hot air oven;

110-an inner housing; 111-heating chamber; 112-a first through hole; 113-a second through hole; 114-a third through hole; 115-a second wall; 116-a third wall; 117-opening; 118-a back plate; 119-a first side plate; 1110-a second side panel; 1111-a third side panel;

120-an outer shell;

130-an air supply assembly; 131-a cover; 1311-a first wall; 1312-a first housing; 1313-a second housing; 1314-a first chamber; 1315-a second chamber; 132-an air supply part; 1321-impeller; 133-air duct;

140-a heating assembly; 141-heating net.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if a directional indication (such as up, down, left, right, front, and rear … …) is included in the embodiment of the present utility model, the directional indication is merely used to explain a relative positional relationship, a movement condition, and the like between the components in a specific posture, and if the specific posture is changed, the directional indication is correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if "and/or", "and/or" and/or "are used throughout, the meaning includes three parallel schemes, for example," a and/or B ", including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Hot air ovens are very common in daily life, and when a user purchases an oven, a plurality of factors influence the selection of the user, wherein the volume of a heating cavity of the hot air oven and the cleaning convenience of the heating cavity are important factors influencing the selection of the user. The duct system is a key factor affecting the performance of the hot air oven, and in the prior art, the shell forming the duct is mostly arranged on the inner side of the inner shell of the hot air oven. When hot-blast oven heats food, food is placed in the heating chamber, because the casing that forms the wind channel sets up in the heating chamber, can form a lot of dead angles after the wind channel casing is installed in interior casing, on the one hand, during the use, the greasy dirt that heats food and produce is very easily hidden in these dead angles, on the other hand, when clearing up the oven, and these dead angles have increased the clearance degree of difficulty in the hot-blast oven heating chamber, have reduced user's use experience and have felt.

In order to solve the above problems, as shown in fig. 1 to 16, the present utility model provides a hot air oven 100, wherein the hot air oven 100 comprises an inner housing 110, an outer housing 120, and an air supply assembly 130.

As shown in fig. 1, the inner housing 110 defines a heating chamber 111, and the inner housing 110 is provided with a first through hole 112 and a second through hole 113. The outer casing 120 is sleeved outside the inner casing 110, and the air supply assembly 130 is arranged between the outer casing 120 and the inner casing 110. That is, the inner housing 110 restricts the side of the accommodating chamber without adding a member forming the air duct 133, avoiding the air supply assembly 130 from forming a cleaning dead angle inside the heating chamber 111 of the inner housing 110.

As shown in fig. 2 and 6, the air supply assembly 130 includes a cover 131 and an air supply portion 132, the cover 131 is connected to a wall surface of the inner housing 110 facing the outer housing 120, and defines an air duct 133 with the inner housing 110, the air duct 133 is communicated with the first through hole 112 and the second through hole 113, the air supply portion 132 is disposed in the air duct 133, and an air flow in the air duct 133 flows from the first through hole 112 to the second through hole 113 through the air supply portion 132.

The inner case 110 is provided with a first through hole 112 and a second through hole 113 communicating with the air duct 133, and the air flow in the heating chamber 111 flows together with the air flow in the air duct 133 through the first through hole 112 and the second through hole 113. The cover body 131 forming the air duct 133 is arranged on one side of the inner shell 110 deviating from the heating cavity 111, and the cover body 131 does not form dead angles with the inner side of the inner shell 110, so that on one hand, when the heating cavity 111 is used, oil stains generated by heating food are not easy to hide, and on the other hand, when the cavity is cleaned, the cleaning difficulty of the heating cavity 111 is greatly reduced. The technical scheme of this application can improve the cleanliness factor when hot-blast oven 100 uses to and reduce the heating chamber 111 clearance degree of difficulty.

In fig. 1 and 2, the entire outer casing 120 is not shown in the embodiment, but only a part of the outer casing is connected to the inner casing instead.

As shown in fig. 1, in various embodiments, the inner housing 110 may be provided with a plurality of second through holes 113 in order to facilitate the flow of air within the heating chamber 111 and the air duct 133. In the technical scheme of the application, the inner housing 110 is provided with the first through hole 112 and the second through hole 113 which are communicated with the air duct 133, when the hot air oven 100 of the application is used, air flow in the air duct 133 enters the air duct 133 from the first through hole 112 through the action of the air supply part 132, and air flow in the air duct 133 flows to the second through hole 113, so that air flow in the heating cavity 111 can flow together with air flow in the air duct 133 through the first through hole 112 and the second through hole 113. When heating, the higher the flow rate of the air flow passing through the first through holes 112 and the second through holes 113, the faster the flow speed, and the higher the heating efficiency of the hot air oven 100. Therefore, to enhance the ability of the hot air oven 100 to heat food, the first through holes 112 and the second through holes 113 may have any size of the openings 117 to meet the heating requirement, and the number and arrangement of the first through holes 112 and the second through holes 113 may be different. Specifically, as shown in fig. 1, in the present embodiment, the inner housing 110 has a plurality of second through holes 113, the plurality of second through holes 113 are arranged in an array in the inner housing 110, and the air duct 133 communicates with the plurality of second through holes 113. It should be noted that, the second through holes 113 are arranged in an array in the inner housing 110, and the second through holes 113 may be arranged in any form that meets the requirement, for example, the second through holes 113 may be arranged in a rectangular array or an annular array, and the second through holes 113 in the array may have different row and column numbers, and the intervals between the plurality of second through holes 113 may also be different, which is not limited herein.

As shown in fig. 6, 15 and 16, in various embodiments, the air supply assembly 130 may limit the air duct 133 with the inner housing 110 in various forms. In the technical solution of the present application, since the air supply assembly 130 is disposed between the outer casing 120 and the inner casing 110, the air supply assembly 130 does not affect the arrangement of the inner casing 110 on the side where the heating cavity 111 is disposed, and therefore, the air supply assembly 130 can be more flexibly disposed in the inner casing 110 to limit the air outlet channel 133. Specifically, in the present embodiment, the cover 131 has a first wall surface 1311 facing the inner housing 110, the first wall surface 1311 is recessed toward a side facing away from the inner housing 110, and the first wall surface 1311 and the inner housing 110 together define the air duct 133. It will be appreciated that the air duct 133 that may be restricted by the recess of the housing 131 is also a receiving chamber for the air supply 132 and other required components. It should be noted that, in various embodiments, the inner housing 110 may be configured in any form that is convenient for cleaning and is not easy to be stained. Specifically, the side of the inner housing 110 near the cover 131 may also be recessed toward the side facing away from the cover, so as to limit the air duct 133 with the flat cover, and the inner housing 110 and the cover may also be recessed toward the direction facing away from each other, so as to limit the air duct 133 together. As shown in fig. 15 and 16, the cover 131 may limit the communication between the independent air inlet and the first through hole 112 on the inner case 110, and the cover 131 may also directly communicate with the first through hole 112 through the cavity in which the air supply part 132 is installed. It should be noted that, the side of the inner housing 110 provided with the heating cavity 111 may also have a recess or a line, which is only convenient for cleaning the heating cavity 111 of the inner housing 110 and reducing the hidden dirt, and will not be described herein.

As shown in fig. 1 and 2, in different embodiments, in order to increase the speed of heating food and the uniformity of coloring food by the hot air oven 100, the first through holes 112 and the second through holes 113 may be disposed on different walls of the inner housing 110. During the heating of food, the span of the oven cavity directly affects the speed at which the oven heats the food. In the prior art, the air inlet and the air outlet are mostly arranged on the wall surface of one side of the oven cavity at the same time. Especially in big cavity oven, because cavity length is longer, and the degree of depth is shallower, when air inlet and apopore equipartition were in oven cavity one side's wall, on the one hand, because the required air supply distance in the oven cavity is longer, actual air supply arrangement's air supply distance is shorter, and the difference of wind speed is great everywhere in the cavity, and the inside everywhere heating effect difference of oven is great, finally leads to cooking speed slow, and food coloring is inhomogeneous. On the other hand, because the distance between the air inlet and the air outlet is relatively short, hot air is easily sucked in the oven, which is not beneficial to food heating. Therefore, in order to improve the speed of heating food and the uniformity of coloring food in the hot air oven 100, in the present embodiment, the inner housing 110 has a second wall surface 115 facing the heating cavity 111 and a third wall surface 116, the second wall surface 115 is disposed opposite to the third wall surface 116, the first through hole 112 is disposed on the second wall surface 115, and the second through hole 113 is disposed on the third wall surface 116. In some embodiments, the second wall surface 115 and the third wall surface 116 may be disposed adjacent to each other on two sides of the inner housing 110. It can be understood that, in the technical solution of the present application, since the air flow in the air duct 133 flows from the first through hole 112 to the second through hole 113 through the air supply portion 132, the first through hole 112 is used as an air inlet, and the second through hole 113 is used as an air outlet. That is, in the above embodiment, when the first through hole 112 and the second through hole 113 are disposed on adjacent or opposite wall surfaces of the inner housing 110, on one hand, the first through hole 112 and the second through hole 113 are disposed on different wall surfaces, which is helpful for the airflow flowing in the heating cavity 111, increases the heating uniformity of the hot air oven 100, increases the actual air supply distance, and improves the cooking efficiency. On the other hand, the distance between the first through hole 112 and the second through hole 113 increases, so that the entrainment phenomenon in the hot air oven 100 can be effectively reduced.

As shown in fig. 1, 2, 3 and 4, in order to achieve the above-mentioned technical effects of increasing the heating uniformity of the hot air oven 100, improving the cooking efficiency and reducing the entrainment of hot air, preferably, in some embodiments, the inner case 110 is provided with an opening 117 for taking and placing the articles, the inner case 110 has a back plate 118 opposite to the opening 117 and a first side plate 119 connected to the back plate 118, the first side plate 119 includes a second wall surface 115, and the back plate 118 includes a third wall surface 116, such that the second wall surface 115 is disposed adjacent to the third wall surface 116. That is, the first through hole 112 is disposed on a side wall of the opening 117 of the inner housing 110, the second through hole 113 is disposed on the back plate 118 opposite to the opening 117 of the inner housing 110, when the air conditioner is in use, the air flow in the heating chamber 111 flows from the air outlet hole, i.e. the second through hole 113, on the back plate 118 to the air inlet hole, i.e. the first through hole 112, of the first side plate 119, and the air flow in the air duct flows from the first through hole 112 to the second through hole 113. It should be noted that, facing the opening 117 of the inner housing 110, the air outlet is provided in the back plate 118, and the first side plate 119 provided with the air inlet may be any suitable wall surface connected to the back plate 118.

As shown in fig. 6 and 7, in various embodiments, to enhance the ability of the air blower 132 to draw air into the air duct 133 from the heating chamber 111, the air blower 132 may be configured as an impeller 1321, and the impeller 1321 may be rotatably disposed between the inner housing 110 and the cover 131. In the prior art, most ovens use centrifugal blades to provide kinetic energy for airflow, but centrifugal blade fans have weak air suction capacity, low air outlet speed and low fan efficiency. In the present embodiment, the blower 132 includes an impeller 1321, and the impeller 1321 is rotatably connected to the housing 131. In some embodiments, the impeller 1321 may be rotatably coupled to the inner housing 110 only, and in other embodiments, the impeller 1321 may be rotatably coupled to both the housing 131 and the inner housing 110. The impeller 1321 is disposed in the air duct 133 as the air supply portion 132, and the impeller 1321 and the cover 131 cooperate to effectively improve the air suction efficiency and the air outlet speed of the air supply assembly 130. The connection between the impeller 1321 and the cover 131 and the inner housing 110 only needs to meet the requirement of stable operation of the impeller 1321, which is not described herein.

In a different embodiment, as shown in fig. 7, to facilitate the air flow flowing in the air duct 133, the air supply assembly 130 enhances the compression capability of the air flow, and increases the air outlet speed of the second through hole 113, the cover 131 may limit different subchambers, so as to jointly form the air duct 133. Specifically, in the present embodiment, the cover 131 includes a first housing 1312 and a second housing 1313, the first housing 1312 and the inner housing 110 define a first chamber 1314, the first chamber 1314 communicates with the first through hole 112, the second housing 1313 and the inner housing 110 define a second chamber 1315, the second chamber 1315 communicates with the second through hole 113, and the air blowing portion 132 is provided in the first chamber 1314. It will be appreciated that the housing 131 circumscribes the air channel 133 such that the first chamber 1314 communicates with the second chamber 1315 and together form the air channel 133. The air-blowing portion 132 is disposed in the first chamber 1314, so that the air-blowing portion 132 can be operated, for example, when the air-blowing portion 132 is the impeller 1321, the first housing 1312 can be configured as a volute, and the first chamber 1314 can be configured as a suitable shape for facilitating the air blowing of the impeller 1321. Likewise, the second chamber 1315 defined by the second housing 1313 may be a rectangular cavity, or any other shape that facilitates the flow of air out and to different locations of the heating chamber 111, which will not be described in detail herein.

As shown in fig. 7, 8 and 9, to enhance the heating efficiency of the air flow in the hot air oven 100, the hot air oven 100 may include a heating assembly 140, and the heating assembly 140 is disposed in the air duct 133. Specifically, in various embodiments, to enhance the ability of the hot air oven 100 to heat the air flow, the heating assembly 140 may be disposed at various locations within the air duct 133, and the heating assembly 140 may be connected to the wall surface of the air duct 133 in various manners. It is understood that, in various embodiments, the heating assembly 140 may be attached to each wall of the hot air oven 100 that defines the air duct 133, or may be disposed between the walls of the air duct 133, so that the air flow can first flow through the heating assembly 140 and then enter the heating cavity 111.

In various embodiments, to increase the heat exchange efficiency between the air flow and the heating element 140, in various embodiments, the heating element 140 in the air duct 133 may be disposed in a region where the air flow speed is higher. It will be appreciated that due to the action of the blower 132, the airflow is accelerated within the first chamber 1314 and the accelerated airflow flows from the first chamber 1314 to the second chamber 1315. The heating element 140 is disposed between the first housing 1312 and the second housing 1313, i.e., the heating element 140 separates the first chamber 1314 from the second chamber 1315. Because the airflow is compressed in the first chamber 1314, the speed of the airflow flowing from the first chamber 1314 to the second chamber 1315 is much higher than the speed of the airflow flowing from the first through hole 112 into the first chamber 1314, and thus the heat exchange efficiency of the airflow and the heat generating components can be effectively improved by providing the heating component 140 at the outlet of the high-speed airflow flowing to the second chamber 1315.

In various embodiments, the heating assembly 140 may be constructed of various components. Wherein the heating assembly 140 may include a heating mesh 141, and the heating mesh 141 separates a first chamber 1314 and a second chamber 1315. The heating assembly 140 may include a frame, a connection terminal, and a heat generating portion. The heat generating part may be configured as a member such as a heating wire or a heating mesh 141 that facilitates the passage of the air flow and has a large contact area with the air flow. In this embodiment, the heating part is a heating net 141, the frame is an insulator, the frame can be connected with the cover and the inner housing that limit the air outlet channel 133, the heating net 141 covers the outlet of the high-speed air flow in the air outlet channel, and the air flow flowing out of the first chamber 1314 can only flow to the second chamber 1315 through the mesh of the heating net 141. The provision of the heating net 141 helps to improve the heat exchange efficiency between the heat generating part and the air flow. The insulator provides the installation basis for portion that generates heat and binding post, and the insulator can be connected with the cover body 131 and be close to one side of inner housing 110, also can be connected with inner housing 110 and be close to cover body 131 one side, and then the portion that generates heat scalds the user when avoiding using. The insulator may be disposed within the first cavity 1314 of the first housing 1312 or may be disposed at an end of the first housing 1312 adjacent to the second housing 1313. It should be noted that, in some embodiments, the heating element 140 may also be disposed at an end of the second housing 1313 near the first housing 1312, which is not described herein.

As shown in fig. 5, in various embodiments, the inner case 110 may be provided with air outlet holes at various walls in order to enhance the heating efficiency of the hot air oven 100. Specifically, as shown in fig. 5, in the present embodiment, the inner housing 110 is provided with a third through hole 114, the air duct 133 communicates with the third through hole 114, and the air flow in the air duct 133 flows from the first through hole 112 to the second through hole 113 and the third through hole 114 through the air supply portion 132, respectively. It is understood that in a specific embodiment, the second through hole 113 and the third through hole 114 may be disposed on two opposite sidewalls of the inner housing 110, and the second through hole 113 and the third through hole 114 may also be disposed on adjacent sidewalls of the inner housing 110. In different embodiments, the third through holes 114 enable the air flow in the air duct 133 to flow to the heating cavity 111 through the second through holes 113, and even in the oven with a longer cavity length, the air supply assembly 130 can send the air flow to different parts of the cavity, so that the air flow in the heating cavity 111 flows faster and the heating efficiency is higher.

As shown in fig. 10, 11 and 12, in the embodiment of the hot air oven 100 having the first through hole 112, the second through hole 113 and the third through hole 114, the second through hole 113 may be disposed at two opposite sidewalls of the inner case 110 in order to enhance the uniformity of the heating effect in the heating chamber 111. Specifically, as shown in fig. 10, in the present embodiment, the inner housing 110 is provided with an opening 117 for taking and placing articles, the inner housing 110 has a first side plate 119 and a second side plate 1110 disposed opposite to each other on both sides of the opening 117, the inner housing 110 has a third side plate 1111 disposed between the first side plate 119 and the second side plate 1110, the first through hole 112 is disposed on the third side plate 1111, the second through hole 113 is disposed on the first side plate 119, and the third through hole 114 is disposed on the second side plate 1110. That is, the second through hole 113 and the third through hole 114 are used as air outlet holes, and the second through hole 113 and the third through hole 114 are respectively provided on the first side plate 119 and the second side plate 1110 at both sides of the opening 117 of the inner housing 110. The first through hole 112 is disposed on the third side plate 1111, and since the third side plate 1111 is disposed between the first side plate 119 and the second side plate 1110, it is understood that the third side plate 1111 may be a back plate 118 disposed opposite to the opening 117 of the inner housing 110, or may be a top plate connected to the back plate 118. In use, air flows into the air duct 133 from the first through hole 112, and air flows in the air duct 133 from the second through hole 113 and the third through hole 114 back to the heating cavity 111, and air flows in the heating cavity 111 from opposite side walls of the inner housing 110 to the back plate 118 or the top plate. It can be understood that the air outlet holes of the hot air oven 100 are disposed at two sides of the opening 117, and the second through hole 113 and the third through hole 114 simultaneously supply hot air to the heating cavity 111, so that the air supply distance required by a single side in the cavity is greatly shortened, the air speed difference between the first side plate 119 and the second side plate 1110 of the heating cavity 111 is reduced, and the heating uniformity of the hot air oven 100 is greatly improved.

As shown in fig. 13 and 14, in various embodiments, to improve the heating efficiency and the heating uniformity of the hot air oven 100, the hot air oven 100 may include a plurality of air supply assemblies 130. Specifically, the hot air oven 100 may include two or three air supply assemblies 130. The arrangement of the blower assemblies 130 may also vary according to different needs.

For ease of understanding, this embodiment describes hot air oven 100 as including two air supply assemblies 130, as shown in fig. 13 and 14. When the hot air oven 100 includes two air supply assemblies 130, each air supply assembly 130 may be respectively communicated with only one air outlet hole, or may be communicated with a plurality of air outlet holes, and the air channels 133 of the air supply assemblies 130 may be independent from each other or may be communicated with each other.

Specifically, as shown in fig. 13, the inner housing 110 has an opening 117, the hot air oven 100 may have first through holes 112 on opposite wall surfaces on both sides of the opening 117, and a plurality of sets of second through holes 113 for air outlet may be provided on a top plate or a back plate 118 between the side wall surfaces, and air channels 133 formed by cover bodies 131 covering the plurality of sets of second through holes 113 may be independent of each other or may be communicated with each other. In different embodiments, the arrangement of the second through holes 113 corresponding to different air supplying assemblies 130 in the inner housing 110 may be different. Specifically, the second through holes 113 corresponding to the different air supply assemblies 130 may be respectively disposed in the upper and lower groups in the same wall plate, at this time, the corresponding heating cavity 111 in the hot air oven 100 is also divided into the upper and lower layers, and when in use, the heating efficiency in the different level spaces in the heating cavity 111 can be adjusted by controlling the different air supply assemblies 130, so as to further meet the heating requirements of different portions of the foods corresponding to different heights in the heating cavity 111. In other embodiments, the second through holes 113 corresponding to different air supplying assemblies 130 may be also arranged in the same wall plate in two groups, so as to meet different heating requirements for the left and right spaces in the heating cavity 111, which is not described in detail.

As shown in fig. 14, in a different embodiment, the inner housing 110 has an opening 117, and the first through holes 112 corresponding to the different air supply assemblies 130 may be disposed on the back plate 118 opposite to the opening 117. It should be understood that each air supply assembly 130 disposed on the back plate 118 may be respectively communicated with only one air outlet disposed on one side of the inner housing 110, or may be simultaneously communicated with air outlets disposed on different sides of the inner housing 110, and the relative positions of the first through holes 112 corresponding to the air duct 133 assemblies may be different. Specifically, in this embodiment, the hot air oven 100 has two sets of air channels 133, the back plate 118 has two sets of first through holes 112, the two sets of first through holes 112 are divided into an upper layer of first through holes 112 and a lower layer of first through holes 112, the two sets of air channels 133 are respectively communicated with one set of first through holes 112, two sets of second through holes 113 arranged up and down are respectively arranged on the side plates at two sides of the opening 117 of the inner housing 110, the air channels 133 connected with the first through holes 112 at the upper side on the back plate 118 are simultaneously communicated with the second through holes 113 at the upper side of the two side plates, and the air channels 133 connected with the first through holes 112 at the lower side on the back plate 118 are simultaneously communicated with the second through holes 113 at the lower side of the two side plates.

The hot air oven 100 is provided with a plurality of groups of air flue 133 assemblies, so that on one hand, the flowing capacity of air flow in the heating cavity 111 can be enhanced, the cooking speed of the hot air oven 100 can be improved, on the other hand, the heating capacity of each space in the heating cavity 111 can be effectively controlled, the heating effect of each space in the heating cavity 111 can be more uniform, and personalized control of the heating temperature of each different space in the heating cavity 111 can be realized.

In various embodiments, to facilitate increasing the temperature of the airflow in the hot air oven 100, a heating assembly 140 may be included within each of the plurality of sets of air ducts 133 of the hot air oven 100. Specifically, the airflow is compressed in the air duct 133, and the airflow speed is increased, so that the heat exchange efficiency between the heating component 140 and the airflow is enhanced, and the heating component 140 may be disposed in a region with a higher airflow speed. Since the second through holes 113 of different locations of the air supply assembly 130 may be connected, that is, the air supply assembly 130 may have a plurality of air outlet holes, in different embodiments, one air duct 133 may include one heating assembly 140, and may also include a plurality of heating assemblies 140, so that the air flowing to the different second through holes 113 can be rapidly heated. To avoid the heating element 140 from scalding the user, the heating element 140 may be disposed on a side of the inner housing 110 close to the cover 131, i.e. the heating element 140 may be disposed in the air duct 133.

It should be noted that, other structures of the hot air oven 100 disclosed in the present utility model, such as a rack body provided in the heating cavity for placing food to be cooked, can be referred to in the prior art, and will not be described herein.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).

Claims (11)

1. A hot air oven, comprising:

the inner shell is provided with a first through hole and a second through hole;

the outer shell is sleeved outside the inner shell;

the air supply assembly is arranged between the outer shell and the inner shell, the air supply assembly comprises a cover body and an air supply part, the cover body is connected to the wall surface of the inner shell facing the outer shell and is used for limiting an air channel together with the inner shell, the air channel is communicated with the first through hole and the second through hole, the air supply part is arranged in the air channel, and air flow in the air channel flows from the first through hole to the second through hole through the air supply part;

the inner shell is provided with a second wall surface and a third wall surface which face the heating cavity, the second wall surface and the third wall surface are adjacently arranged or oppositely arranged, the first through hole is formed in the second wall surface, and the second through hole is formed in the third wall surface.

2. The hot air oven of claim 1, wherein,

the inner shell is provided with a plurality of second through holes, the second through hole arrays are arranged in the inner shell, and the air duct is communicated with the second through holes.

3. The hot air oven of claim 1, wherein,

the cover body is provided with a first wall surface facing the inner shell, the first wall surface is recessed on one side facing away from the inner shell, and the first wall surface and the inner shell jointly limit the air duct.

4. The hot air oven of claim 1, wherein,

the inner shell is provided with an opening for taking and placing objects, the inner shell is provided with a back plate opposite to the opening and a first side plate connected with the back plate, the first side plate comprises a second wall surface, the back plate comprises a third wall surface, and the second wall surface and the third wall surface are adjacently arranged.

5. The hot air oven of claim 1, wherein,

the air supply part comprises an impeller, and the impeller is rotationally connected with the cover body;

and/or the number of the groups of groups,

the air supply part comprises an impeller, and the impeller is rotationally connected with the inner shell.

6. The hot air oven of claim 1, wherein,

the cover body comprises a first shell and a second shell, wherein the first shell and the inner shell limit a first chamber, the first chamber is communicated with the first through hole, the second shell and the inner shell limit a second chamber, the second chamber is communicated with the second through hole, and the air supply part is arranged in the first chamber.

7. The hot air oven of claim 6, wherein,

the hot air oven comprises a heating component, and the heating component is arranged in the air duct.

8. The hot air oven of claim 7, wherein,

the heating assembly includes a heating mesh, and the heating mesh separates the first chamber and the second chamber.

9. The hot air oven of claim 1, wherein,

the inner shell is provided with a third through hole, the air duct is communicated with the third through hole, and air flow in the air duct flows to the second through hole and the third through hole respectively from the first through hole through the air supply part.

10. The hot air oven of claim 9, wherein,

the inner shell is provided with an opening for taking and placing objects, the inner shell is provided with a first side plate and a second side plate which are oppositely arranged at two sides of the opening, the inner shell is provided with a third side plate which is arranged between the first side plate and the second side plate, the first through hole is formed in the third side plate, the second through hole is formed in the first side plate, and the third through hole is formed in the second side plate.

11. The hot air oven according to any one of the claim 1 to 10, characterized in that,

the hot air oven comprises a plurality of air supply assemblies.