Hot air system and cooking equipment

Abstract

The utility model relates to a hot air system and cooking equipment. The hot air system comprises a back plate, a connecting piece and a heating piece. The connecting piece comprises a connecting part and two oppositely-arranged supporting leg parts, a connecting space with an opening facing the supporting leg parts is formed in the connecting part, the two supporting leg parts are arranged in a spaced mode, the interval between the two supporting leg parts is variable when the supporting leg parts are stressed, and the ends, away from the connecting part, of the supporting leg parts are used for being connected with the back plate. The heating piece penetrates through the connecting space. The hot air system is simple in structure and convenient to install on the basis that the heating piece is convenient to disassemble, rigid impact can be buffered, the risk of high-temperature aging does not exist, and the production and maintenance cost can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of kitchen appliances, and in particular to hot air systems and cooking equipment. Background Art

[0002] In a cooking device such as a steam oven, a hot air system is generally installed on the back of the inner pot, and a heating element and a fan are provided in the hot air system, and the hot air system is connected to the cooking cavity inside the inner pot through a hot air fan baffle to form a hot air circulation. The heating element is usually a heating tube and is fixed to the fan back plate.

[0003] In the prior art, the use of long strip heating tubes has the disadvantage of poor applicability. The heating tubes of corresponding lengths must be designed according to the size of the steam oven, and the complex fixing structure occupies a large amount of space. In addition, the existing method of fixing the heating tubes to the fan back plate and using rubber pads to mitigate rigid impact has the risk of rapid aging of the rubber pads at high temperatures. Summary of the invention

[0004] Based on this, it is necessary to provide a hot air system and cooking equipment to address the problems of poor versatility of heating tubes in cooking equipment and easy aging of buffer parts.

[0005] A hot air system, comprising a back plate, a connector and a heating element. The connector comprises a connecting portion and two oppositely arranged leg portions, the interior of the connecting portion is provided with a connecting space open toward the leg portions, the two leg portions are arranged at intervals, and the interval between the two leg portions is variable when the leg portions are subjected to force, and one end of the leg portion away from the connecting portion is used to connect to the back plate. The heating element is arranged through the connecting space.

[0006] In one embodiment, the connecting member is an integral structure, and one of the leg portions, the connecting portion and the other of the leg portions are connected in sequence.

[0007] In one of the embodiments, a tightening hole is formed at one end of the two leg portions close to the connecting portion, and the connecting member also includes a fastener detachably connected to the tightening hole, and the fastener is configured to be able to be sequentially passed through the two tightening holes and drive the two leg portions to move closer to each other under the action of external force.

[0008] In one embodiment, one end of the leg portion away from the connecting portion is provided with a fastening section extending away from the other leg portion, and the fastening section is provided with a connecting groove.

[0009] In one embodiment, the thickness of the connecting member is 0.35 mm-0.45 mm.

[0010] In one embodiment, the thickness of the connecting member is uniform.

[0011] In one of the embodiments, the spacing distance between the heating element and the back plate is 29mm-35mm.

[0012] In one embodiment, the connecting piece is made of metal material.

[0013] In one embodiment, there are multiple connecting members, and the connecting members are symmetrically distributed around the center, and the heating member is sequentially arranged in the connecting space of each connecting member.

[0014] A cooking device comprises the hot air system described in any one of the above embodiments.

[0015] The hot air system provided in the above scheme fixes the heating element through a connecting piece, and utilizes the characteristics that the two legs of the connecting piece are arranged at intervals, and the interval between the two legs can be changed when the legs are subjected to force, so that different forces are applied to the two legs, which can facilitate the installation of the heating element when the interval increases, and can fix the heating element in the connection space without falling off when the interval decreases, thereby achieving the fixation of the heating element. In addition, the interval between the two legs serves as the deformation margin when the two legs are subjected to force. When the back plate is impacted, the connecting piece can absorb the rigid force brought by the external impact by virtue of the toughness brought by its own structure, thereby preventing the heating element from breaking. The above hot air system, on the basis of realizing the convenience of disassembling the heating element, has a simple structure, is easy to install, and can buffer rigid impacts without the risk of high-temperature aging, and can reduce production and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a partial structural diagram of a cooking device in one embodiment of the present application.

[0017] Figure 2 for Figure 1 Schematic diagram of the hot air system in FIG.

[0018] Figure 3 for Figure 2 Schematic cross-section of the hot air system.

[0019] Figure 4 for Figure 2 Schematic diagram of the partial structure of the hot air system.

[0020] Figure 5 for Figure 2 Schematic diagram of the structure of the connecting parts.

[0021] Description of reference numerals:

[0022] 10. Cooking equipment; 100. Hot air system; 110. Back panel; 120. Connector; 121. Connecting part; 1211. Connecting space; 122. Leg part; 1221. First leg; 1222. Second leg; 1223. Fastening section; 1224. Connecting groove; 1225. Tightening hole; 130. Heating element; 140. Impeller; 150. Fan baffle; 151. Return air outlet; 152. Air outlet; 200. Inner pot; 300. Cooking cavity. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0024] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0025] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0027] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0029] See also Figure 1 , Figure 1 A partial structural schematic diagram of a cooking device 10 in an embodiment of the present application is shown. A cooking device 10 provided in an embodiment of the present application includes a hot air system 100 in any of the following embodiments, and also includes an inner pot 200 provided with a cooking cavity 300. The hot air system 100 includes a fan baffle 150, and the fan baffle 150 is provided with an air outlet 152 and an air return port 151 connected to the cooking cavity 300, so that the hot air system 100 and the cooking cavity 300 can realize hot air circulation. In this embodiment, the cooking device 10 is described as a steam oven, but it is not limited thereto.

[0030] Combination Figure 2 and Figure 3 As shown, Figure 2 FIG. 1 shows a schematic structural diagram of a hot air system 100 in an embodiment of the present application. Figure 31 shows a cross-sectional schematic diagram of a hot air system 100 in an embodiment of the present application. A hot air system 100 provided in an embodiment of the present application is applied to a cooking device 10 to realize hot air circulation with a cooking cavity 300. Figures 2 to 4 As shown, the hot air system 100 includes a back plate 110, a connecting member 120 and a heating member 130, and also includes an impeller 140 and the above-mentioned fan baffle 150, as shown in FIG. Figure 3 As shown, the back plate 110 and the fan baffle 150 together enclose a receiving space for receiving the impeller 140, the heating element 130 and the connecting element 120, and the impeller 140 is rotatably connected to the back plate 110. Exemplarily, the heating element 130 may be a light wave tube.

[0031] like Figure 5 As shown, the connecting member 120 includes a connecting portion 121 and two oppositely disposed supporting legs 122, and a connecting space 1211 having an opening toward the supporting legs 122 is provided inside the connecting portion 121, for placing the heating element 130 in the connecting space 1211, so as to fix the heating element 130 through the connecting member 120. The heating element 130 is disposed through the connecting space 1211.

[0032] like Figure 5 As shown, the two legs 122 are arranged at intervals, and the interval between the two legs 122 can be changed when the legs 122 are subjected to force. For example, when a force is applied to the two legs 122 to move away from each other, the heating element 130 can enter the connection space 1211 from the interval between the two legs 122, so as to facilitate the installation of the heating element 130. When the two legs 122 are not subjected to force or are subjected to force close to each other, the heating element 130 can be fixed in the connection space 1211 without falling off, thereby achieving the fixation of the heating element 130. In addition, due to the interval between the two legs 122, as the deformation margin when the two legs 122 are subjected to force, when the back plate 110 is impacted, the connector 120 can absorb the rigid force caused by the external impact with the toughness brought by its own structure, thereby preventing the heating element 130 from breaking. At the same time, the presence of a gap between the two leg portions 122 can also adjust the opening size of the connecting space 1211 by the size of the gap between the two leg portions 122, so that the connecting member 120 can be suitable for heating elements 130 of different diameters. At the same time, the distribution of multiple connecting members 120 can also be adjusted to make the connecting member 120 adaptable to heating elements 130 of various shapes, thereby improving the versatility of the components.

[0033] like Figure 4 As shown, in one embodiment, there are multiple connectors 120, and the connectors 120 are centrally symmetrically distributed. Accordingly, the heating element 130 is an annular structure, and the heating element 130 is sequentially disposed in the connection space 1211 of each connector 120. Figure 4In the illustrated embodiment, the number of the connecting members 120 is four. The four connecting members 120 are symmetrically distributed around the center, and the center of symmetry coincides with the rotation axis of the impeller 140 .

[0034] like Figure 3 and Figure 4 As shown, one end of the leg portion 122 away from the connecting portion 121 is connected to the back plate 110. Figure 4 and Figure 5 As shown, in one embodiment, one end of the leg portion 122 away from the connecting portion 121 is provided with a fastening section 1223 extending away from the other leg portion 122, and the fastening section 1223 is provided with a connecting groove 1224. Optionally, a fastening screw passes through the connecting groove 1224 and is threadedly connected to the back plate 110 to fix the fastening section 1223 and the back plate 110.

[0035] In one embodiment, the connector 120 is an integral structure, preferably, the connector 120 is an integrally formed structure, which is formed by bending a plate. In other embodiments, the connector 120 may also be an integral structure fixed by welding or other fixing methods.

[0036] In one embodiment, one of the two legs 122, the connecting portion 121 and the other of the legs 122 are connected in sequence. For the sake of convenience, one of the two legs 122 is named as the first leg 1221, and the other of the two legs 122 is named as the second leg 1222. Figure 5 As shown, the first leg 1221, the connecting portion 121 and the second leg 1222 are connected in sequence.

[0037] like Figure 5 As shown, in one embodiment, a tightening hole 1225 is provided at one end of the two legs 122 close to the connecting portion 121, and the tightening hole 1225 located at the first leg 1221 and the tightening hole 1225 located at the second leg 1222 are arranged opposite to each other. The connecting member 120 also includes a fastener (not shown) detachably connected to the tightening hole 1225, and the fastener is configured to be able to pass through the two tightening holes 1225 in sequence and drive the two legs 122 to move closer to each other under the action of an external force, that is, when the fastener is connected to the two tightening holes 1225 located at the two legs 122, the fastener has a force to drive the two legs 122 to move toward each other, so as to reduce the interval between the first leg 1221 and the second leg 1222, so that the heating element 130 can be fixed in the connecting space 1211 without falling off, thereby achieving the fixing of the heating element 130. Exemplarily, the fastener is a screw.

[0038] In one embodiment, the thickness of the connecting member 120 is 0.35 mm-0.45 mm, so that the connecting member 120 itself has a certain toughness, so that when the supporting leg portions 122 are subjected to force, the interval between the two supporting leg portions 122 can be changed. Figure 5 In the illustrated embodiment, the thickness of the connecting member 120 is uniform.

[0039] In one embodiment, the connecting member 120 is made of metal material. In this embodiment, the connecting member 120 is made of 304 stainless steel material as an example.

[0040] The spacing distance between the heating element 130 and the back plate 110 is controlled by the height of the connecting member 120. Figure 3 As shown, in one embodiment, the spacing distance between the heating element 130 and the back plate 110 is 29mm-35mm. When the spacing distance between the heating element 130 and the back plate 110 is too small, the rotation of the impeller 140 cannot evenly disperse the heat of the heating element 130 into the cooking cavity 300. When the spacing distance between the heating element 130 and the back plate 110 is too large, the heating element 130 will be too close to the fan baffle 150.

[0041] The hot air system 100 provided in the above scheme fixes the heating element 130 through the connecting member 120, and utilizes the characteristics that the two legs 122 of the connecting member 120 are arranged at intervals, and the interval between the two legs 122 can be changed when the legs 122 are subjected to force, so that different forces are applied to the two legs 122, which can facilitate the installation of the heating element 130 when the interval increases, and can fix the heating element 130 in the connecting space 1211 without falling off when the interval decreases, thereby achieving the fixation of the heating element 130. In addition, the interval between the two legs 122 serves as the deformation margin when the two legs 122 are subjected to force. When the back plate 110 is impacted, the connecting member 120 can absorb the rigid force brought by the external impact by virtue of the toughness brought by its own structure, thereby preventing the heating element 130 from breaking. The above hot air system 100, on the basis of realizing the convenience of disassembling the heating element 130, has a simple structure, is easy to install, can buffer the rigid impact but does not have the risk of high temperature aging, and can reduce the production and maintenance costs.

[0042] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A hot air system, characterized in that: The hot air system comprises: Back panel; A connecting member, comprising a connecting portion and two oppositely arranged leg portions, wherein a connecting space having an opening toward the leg portions is provided inside the connecting portion, the two leg portions are spaced apart, and the spacing between the two leg portions is variable when the leg portions are subjected to force, and an end of the leg portion away from the connecting portion is used to connect to the back plate; A heating element is disposed in the connecting space.

2. The hot air system according to claim 1, characterized in that: The connecting member is an integral structure, and one of the leg parts, the connecting part and the other of the leg parts are connected in sequence.

3. The hot air system according to claim 1, characterized in that: A tightening hole is provided at one end of the two legs close to the connecting part, and the connecting member also includes a fastener detachably connected to the tightening hole. The fastener is configured to be able to pass through the two tightening holes in sequence and drive the two legs to move closer to each other under the action of external force.

4. The hot air system according to claim 1, characterized in that: One end of the leg portion away from the connecting portion is provided with a fastening section extending away from the other leg portion, and the fastening section is provided with a connecting groove.

5. The hot air system according to claim 1, characterized in that: The thickness of the connecting piece is 0.35mm-0.45mm.

6. The hot air system according to claim 1 or 5, characterized in that: The thickness of the connecting piece is uniform.

7. The hot air system according to claim 1, characterized in that: The spacing distance between the heating element and the back plate is 29mm-35mm.

8. The hot air system according to claim 1, characterized in that: The connecting piece is made of metal material.

9. The hot air system according to claim 1, characterized in that: The number of the connecting members is multiple and the connecting members are centrally symmetrically distributed, and the heating member is sequentially arranged in the connecting space of each of the connecting members.

10. A cooking device, characterized in that: A hot air system comprising any one of claims 1-9.

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