CN218128135U - Heating assembly and cooking device - Google Patents

Abstract

The application discloses be applied to cooking equipment's heating element and cooking equipment, this heating element includes disk body, first heating member and second heating member, wherein first heating member and second heating member are fixed in respectively on the disk body, and the thermal contact area between first heating member and the disk body is greater than the thermal contact area between second heating member and the disk body, and first heating member is used for generating heat when cooking equipment carries out heat-conduction culinary art, and the second heating member is used for generating heat when cooking equipment carries out air convection culinary art. The technical scheme disclosed in the application is favorable for improving the installation efficiency of the product.

Description

Heating assembly and cooking device

Technical Field

The application relates to the technical field of domestic appliances, in particular to a heating assembly and cooking equipment.

Background

Among the multi-functional cooking equipment that current has heat-conduction culinary art (for example, fry in shallow oil, fry, boil, stew, evaporate) function and air convection culinary art (for example, air is fried) function, be provided with two heating members in the culinary art main part usually, be used for realizing heat-conduction culinary art function and air convection culinary art function respectively, under this condition, how to improve the installation effectiveness of two heating members is a technical problem who awaits the solution urgently.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the present application provides a heating assembly applied to a cooking device in one aspect, the heating assembly includes a tray body, a first heating element and a second heating element, wherein the first heating element and the second heating element are respectively fixed on the tray body, a thermal contact area between the first heating element and the tray body is larger than a thermal contact area between the second heating element and the tray body, the first heating element is used for generating heat when the cooking device performs heat conduction cooking, and the second heating element is used for generating heat when the cooking device performs air convection cooking.

Further, the tray body includes a main tray body, and the second heating member is supported on the main tray body and remains suspended relative to the main tray body.

Furthermore, the heating assembly further comprises a first fixing member which is independently arranged relative to the tray body and the second heating member, the first end of the first fixing member is connected with the second heating member, the second end of the first fixing member is connected with the main tray body, and the second heating member is supported on the main tray body.

Furthermore, the tray body further comprises a first mounting column which is integrally formed with the main tray body and protrudes out of the main tray body, and the second end of the first fixing piece is fixed on the free end of the first mounting column.

Furthermore, the first fixing piece is arranged in a sheet shape, the first end of the first fixing piece is rolled to form a first containing groove matched with the shape of the outer peripheral surface of the second heating piece, and the middle area of the first fixing piece is arranged in a bending mode, so that after the second end of the first fixing piece is connected with the main disc body, the first end of the first fixing piece is farther away from the main disc body than the second end of the first fixing piece in the axial direction of the disc body.

Further, the tray body further includes a first support column integrally formed with the main tray body, and the second heating member is supported on the first support column.

Furthermore, a second accommodating groove is formed in the side wall of the first support column, a preset interval is kept between the second accommodating groove and the main tray body in the axis direction of the tray body, and the second heating element is embedded in the second accommodating groove.

Further, the opening direction of the second accommodating groove is arranged away from the center of the main tray body.

Furthermore, the second heating member is the annular setting that has a breach, and heating element further includes the second mounting, and the both ends of second heating member are connected at the both ends of second mounting, and the middle part region of second mounting further connects the main disc body.

Furthermore, the tray body further comprises a second mounting column which is integrally formed with the main tray body and protrudes out of the main tray body, and the middle area of the second fixing piece is fixed on the free end of the second mounting column.

Furthermore, the tray body further comprises a second supporting column which is integrally formed with the main tray body, a third accommodating groove is formed in the connecting position of the second supporting column and the main tray body, and the first heating element is embedded in the third accommodating groove and is in thermal contact with the main tray body.

Further, the opening direction of the third accommodating groove is arranged towards the center of the main tray body.

Furthermore, the central area of the main disc body is further provided with a first overflowing hole, the first heating element and the second heating element are arranged around the first overflowing hole, the heating assembly further comprises a protective cover, the protective cover is arranged at the first overflowing hole and is provided with a plurality of second overflowing holes, and the sizes of the second overflowing holes are smaller than those of the first overflowing holes.

This application on the other hand provides a cooking equipment, this cooking equipment includes the culinary art main part, explodes basket and interior pot, the culinary art main part includes outer pot and above heating element, heating element sets up in the inside of outer pot, explode basket and interior pot and can put into outer pot respectively, when the outer pot is put into to the pot including the culinary art main part, control first heating member generates heat to carry out heat-conduction culinary art based on interior pot, when the culinary art main part is being fried the basket and is put into outer pot, control second heating member generates heat, carries out the air convection based on frying the basket and cooks.

This application is through being fixed in the disk body with first heating member and second heating member respectively for first heating member and second heating member are whole can to be installed in the culinary art main part as a module, are favorable to reducing the installation degree of difficulty of first heating member and second heating member.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a cross-sectional view of a first embodiment of a cooking apparatus of the present application in a convection cooking mode;

FIG. 2 is a schematic cross-sectional view of a first embodiment of a cooking apparatus of the present application in a heat-conducting cooking state;

FIG. 3 is another sectional view of the cooking apparatus shown in FIG. 1;

fig. 4 is an exploded view of the cooking apparatus shown in fig. 1;

fig. 5 is an exploded view of a part of the cooking apparatus shown in fig. 1;

FIG. 6 is a schematic perspective view of an embodiment of a heating assembly of the cooking device shown in FIG. 4;

FIG. 7 is an exploded view of the heating assembly shown in FIG. 6;

FIG. 8 is a perspective view of the shield of the heating assembly of FIG. 6;

FIG. 9 is a schematic perspective view of another embodiment of a heating assembly of the cooking device shown in FIG. 4;

FIG. 10 is an exploded view of the heating assembly shown in FIG. 9;

FIG. 11 is a perspective view of a second fixture of the heating assembly of FIG. 9;

FIG. 12 is another exploded schematic view of the cooking apparatus shown in FIG. 1;

FIG. 13 is a schematic cross-sectional view of a second embodiment of a cooking apparatus of the present application in a convection cooking state;

FIG. 14 is a schematic cross-sectional view of a second embodiment of a cooking apparatus of the present application in a heat-conducting cooking state;

fig. 15 is an exploded view of a part of the cooking apparatus shown in fig. 13;

fig. 16 is a sectional view schematically showing a part of the structure of the cooking apparatus shown in fig. 14;

fig. 17 is an exploded view schematically showing a part of the cooking apparatus shown in fig. 13;

FIG. 18 is a cross-sectional schematic view of another embodiment of a cooking apparatus of the present application in a heat-conducting cooking state;

FIG. 19 is a cross-sectional schematic view of another embodiment of a cooking apparatus of the present application in a heat-conducting cooking state;

fig. 20 is a sectional view schematically illustrating the protective cover of the cooking apparatus of fig. 13;

FIG. 21 is a schematic view of the construction of a thermal pad in the cooking apparatus shown in FIG. 13;

fig. 22 is an exploded view schematically showing a part of a third embodiment of a cooking apparatus according to the present application;

FIG. 23 is a schematic sectional view showing a part of a third embodiment of a cooking apparatus of the present application;

fig. 24 is a schematic view of a hot air circulating passage in a third embodiment of a cooking apparatus of the present application;

FIG. 25 is a perspective view of the sleeve shown in FIG. 22;

fig. 26 is a schematic view of the structure of another embodiment of the propeller shaft shown in fig. 22.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

< first embodiment >

Referring to fig. 1 and fig. 2 together, fig. 1 is a schematic cross-sectional structure diagram of a first embodiment of a cooking apparatus in an air convection cooking state, fig. 2 is a schematic cross-sectional structure diagram of the first embodiment of the cooking apparatus in a heat conduction cooking state, and the cooking apparatus 100 in the embodiment has both an air convection cooking function and a heat conduction cooking function, and is a multifunctional cooking apparatus. Specifically, the cooking apparatus 100 may include a cooking body 110, a basket 120 that can be placed in the cooking body 110, an inner pot 130 that can be placed in the cooking body 110, a first cover 140, and a second cover 150.

The cooking body 110 can perform not only air convection cooking (i.e., cooking based on the flow of hot air) based on the basket 120, but also heat conduction cooking (i.e., cooking based on the direct contact heat transfer between the heating assembly 113 and the inner pot 130) based on the inner pot 130. The first cover 140 is detachably connected to the cooking main body 110, and is used for covering the cooking main body 110 when the cooking main body 110 performs air convection cooking. The second cover 150 is detachably connected to the cooking main body 110, and is used for covering the cooking main body 110 when the cooking main body 110 performs heat conduction cooking.

In this embodiment, the heat conduction cooking function may be a pressure stewing function, and the second cover 150 may be provided with a vent valve, a bubble breaker, and the like. In some embodiments, the thermally conductive cooking function may also include both pressure and atmospheric cooking functions. In some embodiments, the heat conduction cooking function may also refer to a normal pressure stewing function, or a frying, stir-frying, steaming or other cooking function, in such embodiments, the cooking apparatus 100 may also include only the first cover 140 without the second cover 150, and the first cover 140 may cover the cooking main body 110 when the cooking main body 110 performs air convection cooking or heat conduction cooking, which is not particularly limited in this application and may be selected by a person skilled in the art according to actual needs.

Referring to fig. 3 and 4, fig. 3 is another schematic sectional structure diagram of the cooking apparatus shown in fig. 1, and fig. 4 is an exploded schematic structural diagram of the cooking apparatus shown in fig. 1, in this embodiment, the cooking main body 110 may include a housing 111, an outer pot 112 disposed in the housing 111, a heating element 113 disposed inside the outer pot 112, an air source element 114 (the air source element 114 includes a motor) for performing air convection cooking in cooperation with the heating element 113, a heat insulation cover 115 disposed between the heating element 113 and the outer pot 112, an elastic support 116 for elastically supporting the heating element 113, and a temperature sensor 117 disposed on the outer pot 112.

Wherein the fry basket 120 can be put into the outer pot 112 and positioned above the heating assembly 113, and the cooking body 110 can perform air convection cooking based on the fry basket 120. During air convection cooking of cooking apparatus 100, heating assembly 113 and air source assembly 114 cooperate to generate circulating hot air within outer pot 112 to convectively heat food placed in fry basket 120. The heat shield 115 serves to reflect heat radiation generated from the heating assembly 113 during air convection cooking to reduce the temperature rise of the outer pot 112.

The inner pot 130 can be put into the outer pot 112 and contacted with the heating assembly 113, and the cooking body 110 can conduct heat conduction cooking based on the inner pot 130, at which time the air source assembly 114 does not work. When the cooking apparatus 100 performs heat conduction cooking, the second cover 150 is covered on the cooking body 110 to seal the inner pot 130, at this time, a certain pressure is generated inside the outer pot 112, the pressure pushes the heating assembly 113 to move downward along the axial direction of the cooking body 110 (the axis X in fig. 3 represents the axis of the cooking body 110), and further abuts against the pressure sensing element, so that the pressure sensing element can sense the pressure inside the outer pot 112, the elastic support 116 elastically supports the heating assembly 113, and after the pressure inside the outer pot 112 decreases or disappears, the elastic support 116 urges the heating assembly 113 to reset upward.

In some embodiments, when the cooking apparatus 100 performs heat conduction cooking, pressure detection may also be performed by a pressure/temperature sensor directly provided in the inner pan 130. In such an embodiment, the heating assembly 113 may be unmoved, and the elastic support 116 and the pressure sensing element are not required to be disposed in the cooking body 110, which is not limited in this application and can be selected by those skilled in the art according to actual needs.

Next, each component included in the cooking main body 110 will be described in detail one by one.

The case 111 is disposed at an outermost layer of the cooking body 110 to form an external appearance surface of the cooking body 110.

The outer pot 112 is disposed inside the housing 111, and hot air circulates inside the outer pot 112 to convectively heat food placed in the fry basket 120 when the cooking apparatus 100 performs air convection cooking. Specifically, as shown in fig. 5, fig. 5 is an exploded schematic view of a part of the cooking apparatus shown in fig. 1, and the outer pot 112 includes a bottom wall 1121 and a peripheral wall 1122 disposed around the bottom wall. The bottom wall 1121 of the outer pot 112 may be provided with a first shaft hole 11211. The temperature sensor 117 may be disposed on the peripheral wall 1122 of the outer pot 112 and proximate to the bottom wall 1121.

Referring to fig. 6 and 7 together, fig. 6 is a schematic perspective view illustrating an embodiment of a heating element in the cooking apparatus shown in fig. 4, and fig. 7 is a schematic exploded view illustrating the heating element shown in fig. 6. The heating assembly 113 is disposed inside the outer pot 112 and at the bottom of the outer pot 112. In this embodiment, the heating assembly 113 may include a tray 1131, a first heating element 1132 (in some embodiments, the first heating element 1132 may also be referred to as a second heating element) disposed on the tray 1131, a second heating element 1133 (in some embodiments, the second heating element 1133 may also be referred to as a first heating element) disposed on the tray 1131, a first fixing member 1134 (in some embodiments, the first fixing member 1134 may also be referred to as a second fixing member) for fixing the second heating element 1133 on the tray 1131, and a shield 1136 fixed on the tray 1131.

The first heating member 1132 and the second heating member 1133 are fixed to the tray 1131, respectively, a thermal contact area between the first heating member 1132 and the tray 1131 is larger than a thermal contact area between the second heating member 1133 and the tray 1131, the first heating member 1132 is used for generating heat when the cooking apparatus 100 performs heat conduction cooking, and the second heating member 1133 is used for generating heat when the cooking apparatus 100 performs air convection cooking.

This application is through being fixed in disk body 1131 with first heating member 1132 and second heating member 1133 respectively on for first heating member 1132 and second heating member 1133 are whole can install in culinary art main part 110 as a module, are favorable to reducing the installation degree of difficulty of first heating member 1132 and second heating member 1133.

In this embodiment, the cooking body 110 controls the first heating member 1132 to generate heat when the inner pot 130 is put into the outer pot 112 to perform heat conduction cooking based on the inner pot 130, and controls the second heating member 1133 to generate heat when the basket 120 is put into the outer pot 112 to perform air convection cooking based on the basket 120.

For example, when the cooking apparatus 100 performs heat conduction cooking, the first heating member 1132 is operated, and the second heating member 1133 is not operated; when the cooking apparatus 100 performs convection cooking, the first heating member 1132 may not work, the second heating member 1133 works, or the first heating member 1132 and the second heating member 1133 work simultaneously, which is not limited in this application, and those skilled in the art can select according to actual requirements.

The tray 1131 may include a main tray 11311, a first mounting column 11312 integrally formed with the main tray 11311 and protruding from the main tray 11311, a second mounting column 11313 integrally formed with the main tray 11311 and protruding from the main tray 11311, a first supporting column 11314 integrally formed with the main tray 11311, and a second supporting column 11315 integrally formed with the main tray 11311. Specifically, the first mounting post 11312, the second mounting post 11313, the first support post 11314 and the second support post 11315 are disposed on a side of the main tray body 11311 close to the bottom wall 1121 of the outer pot 112, i.e., away from the fry basket 120 or the inner pot 130.

The main disk 11311 may be provided with a first overflowing hole 11317, as shown in fig. 7, and in this embodiment, the number of the first overflowing holes 11317 is one, and is arranged in the center of the main disk 11311.

The number of the first mounting posts 11312 may be two, and the first mounting posts 11312 and the second mounting posts 11313 are spaced apart from each other and are disposed on the main plate 11311, and the present application is not limited to the specific number of the first mounting posts 11312 and the second mounting posts 11313, and those skilled in the art can select the number according to actual requirements.

The number of the first support columns 11314 may be two, and the first support columns are spaced apart from the main plate 11311. The second heating member 1133 is supported on a first support column 11314. In some embodiments, the number of the first support columns 11314 may be one, three, four or more, which is not limited in this application and can be selected by one skilled in the art according to actual needs.

Specifically, the side walls of the first support columns 11314 are provided with first receiving grooves 11318 (in some embodiments, the first receiving grooves 11318 may also be referred to as second receiving grooves), the opening direction of the first receiving grooves 11318 is arranged away from the center of the main disc 11311, and the second heating elements 1133 are embedded in the first receiving grooves 11318. In the axial direction of the tray body 1131 (the axis of the tray body 1131 is perpendicular to the main surface of the main tray body 11311), the first accommodating grooves 11318 are kept at a predetermined interval from the main tray body 11311, so that the second heating members 1133 are kept suspended with respect to the main tray body 11311.

The number of the second support columns 11315 may be three, and are spaced around the first overflowing holes 11317 and disposed on the main disk body 11311. In some embodiments, the number of the second support columns 11315 may be one, two, four or more, and the application is not limited thereto, and can be selected by those skilled in the art according to actual needs.

Specifically, the second support column 11315 may include a first column section 113151 and a second column section 113152 connected in the axial direction of the cooking body 110, wherein the first column section 113151 is provided on the tray body 1131, and the second column section 113152 is supported by the first column section 113151. The first column section 113151 may be larger in size than the second column section 113152, that is, the first column section 113151 is thicker than the second column section 113152.

The first column portion 113151 is provided with a second receiving groove 11319 (in some embodiments, the second receiving groove 11319 may also be referred to as a third receiving groove) at a connection position with the main tray 11311, the second receiving groove 11319 is opened toward the center of the main tray 11311, and the first heating element 1132 is embedded in the second receiving groove 11319 and is in thermal contact with the main tray 11311.

As shown in fig. 7, the second supporting column 11315 is disposed outside the first heating member 1132, the first mounting column 11312 is disposed inside the first heating member 1132, and the second supporting column 11315 and the first mounting column 11312 cooperate to limit the first heating member 1132, so as to prevent the first heating member 1132 from shifting, and ensure reliable contact between the first heating member 1132 and the main disc body 11311.

In this embodiment, the opening direction of the first receiving groove 11318 is away from the center of the main tray 11311, and the opening direction of the second receiving groove 11319 is toward the center of the main tray 11311, so that the first heating member 1132 and the second heating member 1133 are spaced apart from each other.

When the cooking apparatus 100 performs heat conduction cooking, the first heating member 1132 is operated, and the second heating member 1133 is not operated, the first heating member 1132 and the second heating member 1133 are spaced from each other, so that the heat transfer of the first heating member 1132 to the second heating member 1133 can be avoided, and the cooking efficiency of the heat conduction cooking can be ensured. When the cooking apparatus 100 performs air convection cooking, the first heating member 1132 does not operate, and the second heating member 1133 operates, the first heating member 1132 and the second heating member 1133 are spaced apart from each other, so that heat transfer from the second heating member 1133 to the first heating member 1132 can be prevented, and the cooking efficiency of the air convection cooking can be ensured.

The first heating member 1132 is in contact with the main plate 11311, and performs contact heat transfer to the inner pot 130 placed in the cooking body 110 through the main plate 11311. The first heating member 1132 may be integrally formed in a ring shape and surround the first overflowing hole 11317.

As shown in fig. 7, in this embodiment, the first heating member 1132 may include a ring of heat pipes 11321 surrounding the first overflowing holes 11317 and first connection terminals 11322 disposed at two ends of the heat pipes 11321, the number of the first connection terminals 11322 may be two, and one first connection terminal 11322 is disposed at each end of the heat pipes 11321.

The second heating member 1133 is supported on the main plate 11311 around the first overflowing hole 11317 and is kept suspended relative to the main plate 11311, so as to prevent heat of the second heating member 1133 from being transferred to the main plate 11311 as much as possible, thereby improving the cooking efficiency of the air convection cooking. The second heating member 1133 may be disposed in a ring shape as a whole and has a gap.

As shown in fig. 7, in this embodiment, the second heating element 1133 may include a loop of heat pipe 11331 located at the periphery of the first heating element 1132, and second connection terminals 11332 disposed at two ends of the heat pipe 11331. The two ends of the heat pipe 11331 are spaced apart so that the second heating element 1133 forms a gap. One second connection terminal 11332 is correspondingly disposed at each end of the heat pipe 11331, and two second connection terminals 11332 are disposed at intervals.

As shown in fig. 6 and 7, both ends of the first fixing member 1134 are connected to both ends of the second heating member 1133, respectively, and a central region of the first fixing member 1134 is further connected to the main plate 11311. Specifically, a central region of first mount 1134 may be provided with a through hole through which fastener 11341 secures first mount 1134 to a free end of second mounting post 11313. For example, the fastening member 11341 may be a screw, but the present application is not limited thereto, and the person skilled in the art can select the fastening member according to actual requirements.

When the second heating elements 1133 are installed, the second heating elements 1133 may be first embedded in the first accommodating groove 11318 of the first support column 11314, then the first fixing element 1134 is installed on the second heating element 1133, and then the first fixing element 1134 is fixed on the free end of the second support column 11313 through the fastening element 11341, thereby reducing the installation difficulty of the second heating elements 1133 to a certain extent.

As shown in fig. 6 and 7, the shield 1136 covers the first overflowing hole 11317, so as to prevent foreign matters from falling through the first overflowing hole 11317 and prevent a user from touching the blades of the wind source assembly 114 disposed below the heating assembly 113. The shield 1136 can be located in the area surrounded by the second heating element 1133, but the present application is not limited thereto, and the skilled person can select the shield according to the actual requirement.

Specifically, referring to fig. 6, fig. 7 and fig. 8 together, fig. 8 is a schematic perspective view of the shield in the heating assembly shown in fig. 6, and the shield 1136 may include a first wall 11361, a second wall 11362 and a third wall 11363 connecting the first wall 11361 and the second wall 11362. Wherein the first wall 11361 is centrally disposed. The second wall 11362 surrounds the first wall 11361 and is located on a side of the first wall 11361 away from the fry basket 120. The third wall 11363 is substantially cylindrical and fits into the first overflowing hole 11317.

The first wall 11361 may have a plurality of second overflow holes 11364 (in some embodiments, the second overflow hole 11364 may also be referred to as a third overflow hole) disposed therein, and the second overflow hole 11364 may be smaller in size than the first overflow hole 11317. As shown in fig. 8, the plurality of second overflowing holes 11364 are spaced apart from the first wall surface 11361, that is, the first wall surface 11361 is substantially in the shape of a net. The second wall 11362 may further have a first through hole 11365 and a second through hole 11366, the first connection terminal 11322 passes through the first through hole 11365, and the fastener 11368 may pass through the second through hole 11366, so as to press and hold the shield 1136 on the main plate 11311.

Referring to fig. 9 and 10 together, fig. 9 is a schematic perspective view illustrating another embodiment of a heating element in the cooking apparatus shown in fig. 4, fig. 10 is a schematic exploded view illustrating the heating element shown in fig. 9, and the heating element 113 is different from the heating element 113 shown in fig. 6 and 7 in that the heating element 113 further includes a second fixing member 1135 (in some embodiments, the second fixing member 1135 may also be referred to as a first fixing member) for fixing a second heating element 1133 on the tray 1131, and the main tray 11311 of the heating element 113 does not include a first support column 11314. That is, the second heating element 1133 is suspended from the main plate 11311 by the first fixing member 1134 and the second fixing member 1135.

Specifically, the second fixture 1135 is independently positioned with respect to the plate 1131 and the second heating element 1133. Referring to fig. 9 and 10, the second fixing member 1135 may be in the form of a sheet, a first end of the second fixing member 1135 is connected to the second heating member 1133, and a second end of the second fixing member 1135 is connected to the main plate 11311, so as to support the second heating member 1133 on the main plate 11311.

Specifically, a second end of second mount 1135 may be secured to a free end of first mounting post 11312 by a fastener 11355. For example, the fastener 11355 may be a screw. The number of the second fixing members 1135 is two, and the second fixing members are arranged in a one-to-one correspondence with the first mounting columns 11312 on the main disc 11311, which is not limited in this application and can be selected by those skilled in the art according to actual needs.

As shown in fig. 10, a first end of the second fixing member 1135 is rolled to form a third receiving groove 11356 (in some embodiments, the third receiving groove 11356 may also be referred to as a first receiving groove) adapted to the shape of the outer peripheral surface of the second heating member 1133, and a middle region of the second fixing member 1135 is bent, so that after the second end of the second fixing member 1135 is connected to the main tray 11311, in the axial direction of the tray 1131, the first end of the second fixing member 1135 is farther away from the main tray 11311 than the second end of the second fixing member 1135, so that the second heating member 1133 is suspended from the main tray 11311, so as to prevent heat of the second heating member 1133 from being transferred to the main tray 11311 as much as possible, and improve the cooking efficiency of air convection cooking.

Referring to fig. 11, fig. 11 is a schematic perspective view of the second fixing member in the heating assembly shown in fig. 9, and the second fixing member 1135 may include a first portion 11351, a second portion 11352, a third portion 11353, and a fourth portion 11354 connected in sequence. Wherein first portion 11351 is provided with a through hole through which a fastener 11355 can secure second fastener 1135 to the free end of first mounting post 11312. The first portion 11351 and the third portion 11353 are arranged substantially in parallel, the third portion 11353 is located on the side of the first portion 11351 away from the main disk 11311, and the second portion 11352 connects the first portion 11351 and the third portion 11353, so that the first portion 11351, the second portion 11352, and the third portion 11353 are arranged in a bent manner as a whole and are substantially stepped. The fourth portion 11354 is rolled relative to the third portion 11353 to form a third receiving groove 11356.

As shown in fig. 10, the second wall 11362 of the shield 1136 may further be provided with a third through hole 11367. Second fastener 1135 and first mounting post 11312 are secured through the through-hole such that second fastener 1135 presses shield 1136 against main disk 11311. Other structures of the heating element 113 may be the same as or similar to the heating element 113 shown in fig. 6 and 7, and are not described herein again.

In some embodiments, the heating assembly 113 may also only include the first heating member 1132, and the first heating member 1132 is not limited to be used for heating in the convection cooking mode and the heat conduction cooking mode, and those skilled in the art can select the first heating member 1132 according to actual requirements.

With continued reference to fig. 5, the wind source assembly 114 may include a motor 1141 and first and second blades 1142, 1143 disposed on a side of the motor 1141 adjacent to the fry basket 120. The first blade 1142 is disposed inside the outer pot 112, the motor 1141 and the second blade 1143 are disposed between the shell 111 and the outer pot 112, and the motor 1141 drives the first blade 1142 and the second blade 1143 to rotate synchronously. The motor 1141 is connected to the first blade 1142 via the first shaft hole 11211 on the bottom wall 1121 of the outer pot 112.

As shown in fig. 1, first blade 1142 is used to cooperate with heating assembly 113 to effect air convection within outer pot 112 to enable cooking body 110 to perform air convection cooking based on fry basket 120. First vane 1142 may be located on a side of heating assembly 113 facing away from fry basket 120. The second heating member 1133 is disposed around the first blade 1142, and in the axial direction of the cooking body 110, the second heating member 1133 at least partially overlaps with the first blade 1142, that is, a plane passing through the axis of the cooking body 110 is used as a reference plane, and a projection of the second heating member 1133 on the reference plane overlaps with a projection of the first blade 1142 on the reference plane, so that the second heating member 1133 can directly heat the air flow formed by the rotation of the first blade 1142, which is beneficial to improving the cooking efficiency of air convection cooking.

As shown in fig. 12, fig. 12 is another exploded view of the cooking apparatus of fig. 1, a bottom wall 121 of the fry basket 120 may be provided with a third overflow hole 122 (in some embodiments, the third overflow hole 122 may also be referred to as a second overflow hole), and the number of the third overflow holes 122 may be one and centered with respect to the bottom wall 121 of the fry basket 120. The third overflowing hole 122, the first overflowing hole 11317 and the first blade 1142 may be coaxially disposed along the axial direction of the cooking body 110, that is, the axis of the third overflowing hole 122, the axis of the first overflowing hole 11317 and the axis of the first blade 1142 (i.e., the rotation axis of the first blade 1142) substantially coincide with each other and are substantially parallel to the axial direction of the cooking body 110.

In some embodiments, the number of the third overflowing holes 122 may also be a plurality that are arranged at intervals, and when the number of the third overflowing holes 122 is a plurality, the axis of the third overflowing hole 122 may refer to the axis of the region where the plurality of third overflowing holes 122 are located. Similarly, the number of the first overflowing holes 11317 may be a plurality of holes arranged at intervals, when the number of the first overflowing holes 11317 is a plurality, the heating assembly 113 may not include the shield 1136, and the axis of the first overflowing hole 11317 may refer to the axis of the region where the plurality of first overflowing holes 11317 are located.

Referring to fig. 1 and 12, the first vane 1142 is used to guide the air in the fry basket 120 out through the third flow aperture 122 and the first flow aperture 11317 and to convey the air radially outward along the first vane 1142. For example, the first blade 1142 may be a centrifugal blade. The outer circumferential wall of the fry basket 120 and the inner circumferential wall of the outer pot 112 are spaced to form an air flow channel, the air output along the radial direction of the first blade 1142 is heated by the heating element 113 to be heated to form hot air, the hot air is further transmitted to the top of the fry basket 120 along the air flow channel between the outer circumferential wall of the fry basket 120 and the inner circumferential wall of the outer pot 112, and then is input into the fry basket 120 from the top opening of the fry basket 120 under the guiding and intercepting action of the first cover body 140, so as to heat the food placed in the fry basket 120.

In some embodiments, the circumferential wall of the fry basket 120 may be provided with an overflow hole, and the air output in the radial direction of the first blade 1142 is heated by the heating assembly 113 to form hot air, and the hot air is further transmitted to the top of the fry basket 120 along the air flow channel between the outer circumferential wall of the fry basket 120 and the inner circumferential wall of the outer pot 112, and then is input into the fry basket 120 through the overflow hole in the circumferential wall of the fry basket 120.

A projection of the third overflowing hole 122 in the axial direction of the cooking body 110 (the axis X in fig. 12 represents the axis of the cooking body 110) falls within the first overflowing hole 11317, and a projection of the first overflowing hole 11317 in the axial direction of the cooking body 110 falls within the rotation region of the first blade 1142. For example, the first overflowing hole 11317 and the third overflowing hole 122 may be circular holes, and the diameter D2 of the first overflowing hole 11317 is greater than the diameter D3 of the third overflowing hole 122 and smaller than the diameter D1 of the first blade 1142 (i.e., the diameter of a rotation region formed by the rotation of the first blade 1142 projected on a reference plane perpendicular to the axial direction of the cooking body 110). Of course, in some embodiments, the first overflowing hole 11317 and the third overflowing hole 122 can be in other shapes, such as square or hexagonal, and those skilled in the art can select them according to actual needs.

In the solution of the present application, the first blade 1142 is used for leading out the air in the fry basket 120 through the third overflowing hole 122 and the first overflowing hole 11317 and conveying the air outwards in the radial direction of the first blade 1142, at this time, the first overflowing hole 11317, the third overflowing hole 122 and the first blade 1142 are coaxially arranged in the axial direction of the cooking body 110, the projection of the third overflowing hole 122 in the axial direction of the cooking body 110 falls in the first overflowing hole 11317, which is beneficial for the air in the fry basket 120 to smoothly flow to the first blade 1142 through the third overflowing hole 122 and the first overflowing hole 11317, the projection of the first overflowing hole 11317 in the axial direction of the cooking body 110 falls in the rotating area of the first blade 1142, which is beneficial for preventing the air conveyed outwards in the radial direction of the first blade 1142 from flowing back into the fry basket 120 through the first overflowing hole 11317 again, thereby ensuring the air to flow in the preset direction and improving the cooking efficiency of air convection cooking.

Further, the radial size of the third overflowing hole 122 in the radial direction of the cooking body 110 (the radial direction of the cooking body 110 is perpendicular to the axial direction of the cooking body 110) is set to be not less than 50% of the radial size of the first overflowing hole 11317 in the radial direction of the cooking body 110. Taking the third overflowing hole 122 and the first overflowing hole 11317 as circular holes as an example, the diameter D3 of the third overflowing hole 122 is not less than 50% of the diameter D2 of the first overflowing hole 11317, so that the air in the fry basket 120 is smoothly output through the third overflowing hole 122, and the efficiency of the air circulation flow in the fry basket 120 is ensured.

For example, the radial dimension of the third overflowing hole 122 in the radial direction of the cooking body 110 may be set to be between 70% and 90% of the radial dimension of the first overflowing hole 11317 in the radial direction of the cooking body 110, that is, the radial dimension of the third overflowing hole 122 in the radial direction of the cooking body 110 is slightly smaller than the radial dimension of the first overflowing hole 11317 in the radial direction of the cooking body 110, so that the air in the fry basket 120 is smoothly output through the third overflowing hole 122, and the efficiency of the air circulation flow in the fry basket 120 is ensured.

In some embodiments, the first blade 1142 may also be an axial flow blade. The third overflowing hole 122 of the frying basket 120 is matched with the first overflowing hole 11317 of the heating assembly 113 in an aligning manner to form a first flow channel communicated with the bottom of the frying basket 120, a preset interval is kept between the outer peripheral wall of the frying basket 120 and the inner peripheral wall of the outer pot 112 to form a second flow channel communicated with the top of the frying basket 120, the axial blades can be used for inputting air heated by the heating assembly 113 in the outer pot 112 into the frying basket 120 from the bottom of the frying basket 120 through the first flow channel, and after the hot air flows through the food to be cooked, the hot air is output from the top of the frying basket 120 through the second flow channel. At this time, the path from the oil smoke generated by the food to the oil smoke encountering the heating element (i.e., the oil smoke path) is long, the oil smoke is consumed more on the oil smoke path, i.e., the oil smoke is attached to the cover, the outer pot, and the like, and the oil smoke reaching the heating element 113 is relatively less, which is beneficial to reducing the oil smoke attachment on the heating element 113.

The second blade 1143 serves to allow air in an environment outside the cooking apparatus 100 to flow toward the motor 1141 from an air inlet provided on a bottom wall of the housing 111 to dissipate heat of the motor 1141.

Referring to fig. 3, the heat shield 115 may be fixedly disposed on the bottom wall 1121 of the outer pot 112 and located between the heating element 113 and the bottom wall 1121 of the outer pot 112 to reflect the heat radiation generated by the heating element 113 during the air convection cooking, so as to prevent the heat generated by the heating element 113 from directly radiating to the outer pot 112. In some embodiments, the heat shield 115 may also be fixed to the plate 1131 of the heating assembly 113, which is not limited in this application and may be selected by one skilled in the art according to actual needs.

Referring to fig. 3, 4 and 7, the outer edge of the elastic supporting member 116 is supported on the bottom wall 1121 of the outer pot 112, such that the middle region of the elastic supporting member 116 is suspended from the bottom wall 1121 of the outer pot 112, and the second supporting column 11315 of the heating element 113 is supported on the middle region of the elastic supporting member 116 through the through hole of the heat insulating cover 115. Specifically, the first column section 113151 of the second support column 11315 is supported on a side of the elastic support 116 away from the bottom wall 1121 of the outer pot 112, the second column section 113152 passes through the elastic support 116, and a free end of the second column section 113152 and the stopper 11316 are connected to each other through a through hole disposed on the bottom wall 1121 of the outer pot. The stopper 11316 is used to limit the up-and-down movement amplitude of the heating assembly 113 when the cooking apparatus 100 performs heat conduction cooking.

In some embodiments, the first cover 140 may be a transparent cover, which may allow for visualization of the convection cooking process, and may also make the first cover 140 relatively lightweight, facilitating switching between the first cover 140 and the second cover 150. When the first cover 140 is a transparent cover, in the air convection cooking mode, the second cover 150 may be covered on the cooking main body 110 to realize shielding in the air convection cooking mode.

< second embodiment >

Referring to fig. 13 and 14 together, fig. 13 is a schematic cross-sectional structure view of a second embodiment of the cooking apparatus in an air convection cooking state, fig. 14 is a schematic cross-sectional structure view of the second embodiment of the cooking apparatus in a heat conduction cooking state, and the cooking apparatus 200 in the embodiment has both an air convection cooking function and a heat conduction cooking function, and is a multifunctional cooking apparatus. Specifically, the cooking apparatus 200 may include a cooking body 210, a fry basket 220 that can be placed in the cooking body 210, an inner pot 230 that can be placed in the cooking body 210, a first cover 240, and a second cover 250.

The cooking apparatus 200 of the present embodiment is different from the cooking apparatus of the first embodiment in that the cooking main body 210 may be the same as or similar to the first embodiment with respect to the specific structure and the matching relationship of other components included in the cooking apparatus 200, and is within the scope easily understood by those skilled in the art, and will not be described herein again.

Next, the structure of the cooking body 210 in the present embodiment will be described in detail.

Referring to fig. 13 and 15 together, fig. 15 is an exploded schematic view of a part of the cooking apparatus shown in fig. 13, in the present embodiment, the cooking main body 210 may include a housing, an outer pot 212 disposed in the housing, a heating element 213 disposed inside the outer pot 212, an air source element 214 (the air source element 214 includes a motor 2141) for performing air convection cooking in cooperation with the heating element 213, a heat insulation cover 215 disposed between the heating element 213 and the outer pot 212, an elastic support element for elastically supporting the heating element 213, a heat insulation pad 218 disposed between a bottom wall 2121 of the outer pot 212 and the motor 2141 of the air source element 214, and an oil-proof cover 219 for protecting the motor 2141.

With continued reference to fig. 15, the outer pot 212 of the present embodiment differs from the outer pot 112 of the first embodiment in that a side of the bottom wall 2121 of the outer pot 212 facing away from the fry basket 220 may be provided with a sinking platform 2123, and the heat insulation pad 218 may be embedded in the sinking platform 2123, so as to facilitate positioning of the heat insulation pad 218 during assembly, thereby reducing installation difficulty.

The sink block 2123 may be provided with a first shaft hole 21211, a first fixing hole 21213 spaced apart from the first shaft hole 21211, and a first stopper flange 21212 provided to surround the first shaft hole 21211. The number of the first shaft holes 21211 may be one, and the first shaft holes are centered with respect to the sinking platform 2123. The first retaining flange 21212 is integrally formed by folding back the bottom wall 2121 of the outer pot 212 and extends toward the inside of the outer pot 212.

The number of the first fixing holes 21213 may be four, four first fixing holes 21213 may be respectively located at four vertices of the rectangle, and the first shaft hole 21211 is located between two of the first fixing holes 21213, for example, the first shaft hole 21211 may be located on one long side of the rectangle. In some embodiments, the number of the first fixing holes 21213 may also be two, three, five or more, which is not limited in this application and can be selected by one skilled in the art according to actual requirements.

As shown in fig. 13, the air source assembly 214 of the present embodiment is different from the air source assembly 114 of the first embodiment in that the second blade 2143 is disposed on one side of the motor 2141 away from the basket 220, the first blade 2142 and the second blade 2143 can be disposed on two opposite sides of the motor 2141 at an interval along the axial direction of the cooking main body 210, and the motor 2141 drives the first blade 2142 and the second blade 2143 synchronously.

Referring to fig. 16, fig. 16 is a schematic cross-sectional view illustrating a partial structure of the cooking apparatus shown in fig. 14, wherein the heating element 213 is disposed inside the outer pot 212 and at the bottom of the outer pot 212. Specifically, the heating assembly 213 may include a tray body 2131, a first heating member 2132 disposed on the tray body 2131, a second heating member 2133 disposed on the tray body 2131, a first fixing member for fixing the second heating member 2133 on the tray body 2131, and a protective cover 2136 fixed on the tray body 2131.

The heating assembly 213 in this embodiment is different from the heating assembly 113 in the first embodiment in the second heating member 2133 and the shield 2136. The specific structure and the matching relationship of the other components included in the heating assembly 213 may be the same as or similar to those of the first embodiment, and are within the scope easily understood by those skilled in the art, and are not described herein again.

Here, the second heating member 2133 may include two circles of heat pipes arranged in an axial direction of the first blade 2142 (the axis of the first blade 2142 may refer to a rotation axis of the first blade, i.e., an axis Y shown in fig. 16), and the two circles of heat pipes surround the periphery of the first blade 2142 and are used for heating air output from the first blade 2142 during air convection cooking. The two-turn heat pipe is advantageous in improving the heating efficiency of the second heating member 2133, compared to the case where the second heating member 2133 includes only one turn of the heat pipe.

Among them, the heat pipes close to the tray body 2131 may be referred to as a first heating part 21331, and the heat pipes far from the tray body 2131 may be referred to as a second heating part 21332, that is, the first heating part 21331 is closer to the tray body 2131 than the second heating part 21332.

As shown in fig. 16, the arrangement direction of the first heating section 21331 and the second heating section 21332 may be completely parallel to the axial direction of the first blade 2142. Note that, the first heating sections 21331 and the second heating sections 21332 described in the present application are arranged in the axial direction of the first blade 2142, and it is not strictly necessary that the arrangement direction of the first heating sections 21331 and the second heating sections 21332 is completely parallel to the axial direction of the first blade 2142, and the angle between the arrangement direction of the first heating sections 21331 and the second heating sections 21332 and the axial direction of the first blade 2142 is 0 to 45 degrees.

For example, when the diameter of the first heating section 21331 is larger than the diameter of the second heating section 21332, or when the diameter of the first heating section 21331 is smaller than the diameter of the second heating section 21332, as long as the angle between the arrangement direction of the first heating section 21331 and the second heating section 21332 and the axial direction of the first blade 2142 is between 0 and 45 degrees, it can be understood that the first heating section 21331 and the second heating section 21332 are arranged in the axial direction of the first blade 2142.

As shown in fig. 13, in the present embodiment, the first blade 2142 guides the air in the fry basket 220 out through the third flow holes 222 on the bottom wall of the fry basket 220 and the 113 first flow holes 21317 on the heating element, and conveys the air outwards in the radial direction of the first blade 2142, at this time, the second heating element 2133 includes a first heating part 21331 and a second heating part 21332, the first heating part 21331 and the second heating part 21332 surround the periphery of the first blade 2142, and the first heating part 21331 and the second heating part 21332 operate simultaneously, so that the heating efficiency is relatively high.

In addition, the first heating part 21331 and the second heating part 21332 are arranged along the axial direction of the first blade 2142, which is beneficial to reducing the installation difficulty, and on the other hand, the arrangement direction of the first heating part 21331 and the second heating part 21332 is approximately perpendicular or nearly perpendicular to the flowing direction of the air, which is beneficial to further improving the heating efficiency of the second heating part 2133 to the air, thereby improving the cooking efficiency of the air convection cooking.

In the present embodiment, the axial direction of the first blades 2142 is substantially parallel to the axial direction of the cooking body 210 (the axis X in fig. 13 may represent the axial direction of the cooking body), and in some embodiments, the axial direction of the first blades 2142 may also be substantially perpendicular to the axial direction of the cooking body 210.

The first heater 21331 and the second heater 21332 are provided so as to overlap at least in part in a projection in the axial direction of the first blade 2142. In the axial direction of the first blade 2142, the first heating portion 21331 and the second heating portion 21332 are both disposed to at least partially overlap the first blade 2142, that is, a plane passing through the axis of the first blade 2142 is taken as a reference plane, a projection of the first heating portion 21331 on the reference plane overlaps a projection of the first blade 2142 on the reference plane, and a projection of the second heating portion 21332 on the reference plane overlaps a projection of the first blade 2142 on the reference plane, so that both the first heating portion 21331 and the second heating portion 21332 can directly heat the air flow formed by the rotation of the first blade 2142, which is beneficial to improving the cooking efficiency of air convection cooking. It should be noted that, in the description of the present application, all the mentioned projections refer to orthographic projections.

As shown in fig. 16, the first heating section 21331 and the second heating section 21332 are fixed to the tray body 2131. The first heating section 21331 and the second heating section 21332 are not in contact with each other, so that heat transfer between the two is prevented.

As shown in fig. 17, fig. 17 is an exploded schematic view of a partial structure of the cooking apparatus shown in fig. 13, and the first heating part 21331 and the second heating part 21332 may be different heating sections of the same heating element, that is, the first heating part 21331 and the second heating part 21332 are integrally provided and are formed by winding the same heat pipe.

Referring to fig. 13 and 18, fig. 18 is a schematic cross-sectional structure diagram of another embodiment of the cooking apparatus in a heat conduction cooking state according to the present application, when the first heating part 21331 and the second heating part 21332 are integrally disposed, a diameter of the first heating part 21331 may be larger than a diameter of the second heating part 21332, so that the air heated by the second heating part 21332 flows through the first heating part 21331 in an upward transmission process, and is heated twice, which is beneficial to further improving the heating efficiency of the second heating part 2133 on the air.

As shown in fig. 19, fig. 19 is a schematic cross-sectional structure diagram of another embodiment of the cooking apparatus in the heat conduction cooking state, the first heating portion 21331 and the second heating portion 21332 may also be two independent sub-heating members, and are detachably fixed on the same side of the tray body 2131, respectively, and the first heating portion 21331 is closer to the tray body 2131 than the second heating portion 21332. When the installation is performed, the first heating sections 21331 relatively close to the tray body 2131 can be installed first, and then the second heating sections 21332 relatively far from the tray body 2131 can be installed, and the diameter of the first heating sections 21331 can be smaller than that of the second heating sections 21332, so that interference of the first heating sections 21331 on installation of the second heating sections 21332 is avoided, and the installation difficulty of the second heating sections 21332 is reduced.

When the second heating members 2133 include the first heating part 21331 and the second heating part 21332, the specific fixing manner of the first heating part 21331 and the second heating part 21332 may be the same as or similar to the fixing manner of the second heating member 2133 shown in fig. 6 and 7 or the fixing manner of the second heating member 2133 shown in fig. 9 and 10, and it is within the scope easily understood by those skilled in the art and will not be described herein again.

In some embodiments, the second heating element 2133 may also include three circles of heat pipes, four circles of heat pipes or more arranged along the axial direction of the first blade 2142, which is not limited in this application and can be selected by one skilled in the art according to actual needs.

Referring to fig. 16 and 20, fig. 20 is a schematic cross-sectional view of the protective cover of the cooking apparatus shown in fig. 13, wherein the protective cover 2136 may include a fixing plate 21361, a supporting member 21362, and a baffle 21363. Wherein retainer plate 21361 covers a side of tray 2131 facing away from basket 220. For example, the fixing plate 21361 may be fixed on the side of the plate 2131 facing away from the basket 220 by fasteners, which may be screws, but the present application is not limited thereto, and those skilled in the art can select the fixing plate according to actual requirements.

The retainer plate 21361 may include a main plate body 21364, a first annular flange 21365 and a second annular flange 21366 disposed on a side of the main plate body 21364 adjacent the fry basket 220. The second overflowing hole 21367 may be provided on the main plate body 21364, and the number of the second overflowing holes 21367 may be one, which is smaller than the first overflowing hole 21317. For example, the first and second overflowing holes 21317 and 21367 may each be circular holes, and the diameter of the second overflowing hole 21367 may be smaller than the diameter of the first overflowing hole 21317. A projection of the second overflowing hole 21367 in the axial direction of the cooking body 210 falls within the first overflowing hole 21317.

As shown in FIG. 20, a first annular flange 21365 is disposed around the third flow aperture 222 and a second annular flange 21366 is disposed around the first annular flange 21365 to form a collection area between the first annular flange 21365 and the second annular flange 21366 for collecting grease and/or debris from contaminating other components located below the heating assembly 213.

Support member 21362 is connected to retainer plate 21361, and in particular may be connected to first annular flange 21365, and extends within first overflow aperture 21317 in a direction toward basket 220. For example, the support 21362 may extend in a direction substantially parallel to the axial direction of the cooking body 210. The number of the supporting members 21362 is at least two, and at least two of the supporting members 21362 are spaced apart from each other around the second overflowing hole 21367, so that the cooking air flow can enter the second overflowing hole 21367 through the gap between the supporting members 21362 after being output from the third overflowing hole 222 on the bottom wall of the fry basket 220. For example, the number of supports 21362 can be two, three, four, or more. The supporting members 21362 may be integrally formed with the fixing plate 21361, which is not limited in this application and can be selected by those skilled in the art according to actual requirements.

The baffle 21363 is supported on an end of the support 21362 distal from the fixed plate 21361 and within the first overflow aperture 21317. The projection of the baffle 21363 in the axial direction of the cooking body 210 covers the second overflowing hole 21367, so that foreign substances can be prevented from falling through the first overflowing hole 21317, and a user can be prevented from touching the blades of the air source assembly 214 disposed below the heating assembly 213.

Referring to fig. 13 and 15, the first blade 2142 is disposed between the heating element 213 and the bottom wall 2121 of the outer pot 212, the motor 2141 is disposed on a side of the bottom wall 2121 of the outer pot 212 away from the first blade 2142, the heat insulating pad 218 is disposed between the motor 2141 and the bottom wall 2121 of the outer pot 212, the bottom wall 2121 and the heat insulating pad 218 of the outer pot 212 are respectively provided with a first shaft hole 21211 and a second shaft hole 2189 aligned with each other, an output shaft of the motor 2141 is connected to the first blade 2142 through the first shaft hole 21211 and the second shaft hole 2189, so as to drive the first blade 2142 to form air convection inside the outer pot 212, which can be heated by the heating element 213.

This application sets up motor 2141 in the outside of outer pot 212 to set up heat insulating mattress 218 between the bottom wall 2121 of motor 2141 and outer pot 212, avoid the heat transfer on the outer pot 212 to reach motor 2141, thereby form effectual protection to motor 2141, avoid motor 2141 overheated, be favorable to improving the reliability of culinary art equipment 200, or, reduce motor 2141's heat-resisting grade under the prerequisite of the same reliability, reduction product cost.

In this embodiment, the heat insulation pad 218 may be used to prevent the overheating of the motor 2141 of the wind source assembly 214 not only in the case of air convection cooking, but also in the case of heat conduction cooking.

Referring to fig. 13 and 21 together, fig. 21 is a schematic structural view of the thermal insulation pad in the cooking apparatus shown in fig. 13, and the thermal insulation pad 218 may include a plate-shaped main body 2181. The plate-shaped main body 2181 can be provided with a first limiting boss 2182 towards one side of the bottom wall 2121 of the outer pot 212, and the first limiting boss 2182 is embedded in the first limiting flange 21212 on the bottom wall of the outer pot 212, so that the heat insulation pad 218 is conveniently positioned in the installation process, the assembly difficulty is reduced, and the heat insulation pad 218 can be limited. The second shaft holes 2189 are disposed on the first limit bosses 2182, and specifically, the number of the second shaft holes 2189 is one and is aligned with the first shaft holes 21211.

The plate-shaped body 2181 may be provided with a second fixing hole 2188, and the motor 2141 may be provided with a third fixing hole, the first fixing hole 21213, the second fixing hole 2188 and the third fixing hole being aligned with each other. The bottom wall 2121 of the outer pot 212, the heat insulating pad 218 and the motor 2141 are fixed to each other by the fixing member 2180 inserted into the first fixing hole 21213, the second fixing hole 2188 and the third fixing hole, thereby achieving the reliable fixing of the motor 2141. For example, the fixing member 2180 may be a screw, and is inserted into the first fixing hole 21213, the second fixing hole 2188 and the third fixing hole in sequence from the inside of the outer pot 212.

Specifically, the number of the second fixing holes 2188 is also four, four second fixing holes 2188 are respectively located at four vertices of the rectangle, and the second shaft hole 2189 is located between two of the second fixing holes 2188, for example, the second shaft hole 2189 may be located on one long side of the rectangle. Correspondingly, the number of the third fixing holes is four.

The plate-shaped main body 2181 may be provided with a second limit flange 2183 surrounding the periphery of the second fixing hole 2188 on one side of the motor 2141 facing the heat insulation pad 218, the motor 2141 is provided with a second limit boss 21411 on one side of the heat insulation pad 218, the second limit boss 21411 is embedded in the second limit flange 2183, on one hand, it is convenient to position the motor 2141 during installation, so as to reduce the assembly difficulty, and on the other hand, it is also favorable to prevent the motor 2141 from shifting in the radial direction of the cooking main body 210 (perpendicular to the axial direction of the cooking main body 210). The third fixing hole is disposed on the second limiting protrusion 21411.

Specifically, the second limit flange 2183 maintains a predetermined radial interval from the edge of the second fixing hole 2188, so that after the second limit projection 21411 is inserted into the second limit flange 2183, an abutment is formed between the end surface of the second limit projection 21411 and the plate-shaped body 2181 to prevent the motor 2141 from being displaced in the axial direction of the cooking body 210.

The number of the second limit flanges 2183 is the same as the number of the second fixing holes 2188, and may be four, which are respectively denoted as a first sub flange 21831, a second sub flange 21832, a third sub flange 21833 and a fourth sub flange 21834. Correspondingly, the number of the second limiting bosses 21411 may also be four.

As shown in fig. 21, a first reinforcing flange 2184 is further disposed along an edge of the second shaft hole 2189 on one side of the plate-shaped main body 2181 facing the motor 2141 to reinforce the second shaft hole 2189 and prevent deformation of the second shaft hole 2189. In particular, the first reinforcing flange 2184 may be located between the first sub-flange 21831 and the fourth sub-flange 21834.

The plate-shaped body 2181 is further provided with a second reinforcing flange 2185 along the edge of the plate-shaped body 2181 toward one side of the motor 2141, and the second reinforcing flange 2185 abuts against the sidewall of the sinking platform 2123, so that the heat insulating pad 218 is reliably limited in the sinking platform 2123. A second reinforcing flange 2185 surrounds the periphery of the plate-like body 2181.

As shown in fig. 21, the plate-shaped main body 2181 is further provided with a first reinforcing rib 2186 connected between the second position-limiting flanges 2183 and a second reinforcing rib 2187 connected between the first reinforcing flange 2184 and the second position-limiting flanges 2183 at a side toward the motor 2141.

In this embodiment, the first and second sub flanges 21831 and 21832 may be connected to each other by the first rib 2186, the second and third sub flanges 21832 and 21833 may be connected to each other by the first rib 2186, and the third and fourth sub flanges 21833 and 21834 may be connected to each other by the first rib 2186. In some embodiments, the first sub-flange 21831 and the second sub-flange 21832, the second sub-flange 21832 and the third sub-flange 21833, and the third sub-flange 21833 and the fourth sub-flange 21834 may also be directly connected.

The first sub-flange 21831 and the first reinforcing flange 2184 may be connected to each other by the second rib 2187, and the fourth sub-flange 21834 and the first reinforcing flange 2184 may be connected to each other by the second rib 2187. In some embodiments, the first sub-flange 21831 and the first reinforcing flange 2184 and the fourth sub-flange 21834 and the first reinforcing flange 2184 may be directly connected, which is not limited in this application and may be selected by those skilled in the art according to actual requirements.

The second sub-flange 21832 may be directly connected to the second reinforcing flange 2185, and the third sub-flange 21833 may be directly connected to the second reinforcing flange 2185. In some embodiments, the second sub-flange 21832 and the second reinforcing flange 2185 and the third sub-flange 21833 and the second reinforcing flange 2185 may be connected to each other via a third reinforcing rib, which is not limited in this application and can be selected by those skilled in the art according to actual requirements.

As shown in fig. 13, an oil-proof cover 219 is disposed inside the outer pot 212, and particularly, may be disposed between the first blade 2142 and the bottom wall of the outer pot 212 to prevent grease leaked from the fry basket 220 from contaminating the motor 2141.

Regarding the specific structure and the matching relationship of other components of the cooking body 210, all the components not described in detail in this embodiment may be the same as or similar to those in the first embodiment, and are within the scope easily understood by those skilled in the art, and will not be described again here.

< third embodiment >

The cooking apparatus of the present embodiment is different from the first embodiment in that the air source assembly may be the same as or similar to the first embodiment with respect to the specific structure and the matching relationship of other components included in the cooking apparatus, and is within the scope easily understood by those skilled in the art, and thus, the description is omitted here.

Referring to fig. 22, 23 and 24 together, fig. 22 is an exploded view of a part of the third embodiment of the cooking apparatus of the present application, fig. 23 is a sectional view of the third embodiment of the cooking apparatus of the present application, fig. 24 is a schematic view of a hot air circulation passage of the third embodiment of the cooking apparatus of the present application, a third overflowing hole 322 of the fry basket 320 is aligned with a first overflowing hole 31317 of the heating element 313 to form a first flow passage communicating with the bottom of the fry basket 320, and a predetermined interval is maintained between the outer peripheral wall of the fry basket 320 and the inner peripheral wall of the outer pot 312 to form a second flow passage communicating with the top of the fry basket 320; the air supply assembly 314 includes an axial flow vane 3144 and a centrifugal vane 3143, the axial flow vane 3144 is used for outputting the air in the fry basket 320 from the first flow passage, and the centrifugal vane 3143 is used for conveying the air output by the axial flow vane 3144 to the second flow passage and along the second flow passage to the top of the fry basket 320.

In the present embodiment, the air source assembly 314 includes an axial flow blade 3144 and a centrifugal blade 3143, and the axial flow blade 3144 outputs the air in the fry basket 320 from the first flow channel to the low pressure region of the centrifugal blade 3143, so that the air output by the centrifugal blade 3143 is substantially from the inside of the fry basket 320, that is, it is beneficial to avoid the centrifugal blade 3143 drawing air from other positions outside the fry basket 320, and promote the air flow in the fry basket 320, and in this case, the air at the top of the fry basket 320 can be smoothly output from the first flow channel, thereby improving the cooking efficiency of air convection cooking. Even if the third overflowing hole 322 at the bottom of the basket 320 is partially clogged with the food waste, the air in the basket 320 smoothly circulates.

As shown in fig. 24, axial flow vanes 3144 and centrifugal vanes 3143 cooperate to output air from the first flow path within fry basket 320 and transport it radially outward of centrifugal vanes 3143. The air output in the radial direction of the centrifugal blade 3143 is heated by the heating assembly 313 to be heated to form hot air, and the hot air is further conveyed to the top of the fry basket 320 through the second flow passage and then is input into the fry basket 320 from the top opening of the fry basket 320 under the guiding and intercepting action of the first cover 340 to heat the food placed in the fry basket 320.

In some embodiments, the circumferential wall of the fry basket 320 may be provided with an overflow hole, and the air output in the radial direction of the centrifugal blade 3143 is heated by the heating assembly 313 to heat hot air, and the hot air is further transmitted to the top of the fry basket 320 along the second flow passage and then input into the fry basket 320 through the overflow hole in the circumferential wall of the fry basket 320. It should be noted that the "top" and "bottom" of fry basket 320 are not meant to be specific to a particular location on fry basket 320, and that the "top" is above the "bottom" in the description of this application.

Next, a detailed description will be given of a specific structure of the wind source assembly 314 in the present embodiment. As shown in fig. 22 and 23, the wind source assembly 314 may include a motor 3141, a driving shaft 3142 connected to a rotor of the motor 3141, a centrifugal blade 3143 fixed to the driving shaft 3142, an axial blade 3144 fixed to the driving shaft 3142, a sleeve 3145 sleeved on the driving shaft 3142, and a locking member 3146 for fixing the axial blade 3144. The motor 3141 drives the axial flow blade 3144 and the centrifugal blade 3143 to rotate synchronously, and the sleeve 3145 and the locking piece 3146 are used for fixing the axial flow blade 3144 and the centrifugal blade 3143.

The motor 3141 is disposed outside the outer pot 312, and may be located between the bottom wall 3121 of the outer pot 312 and the housing. The transmission shaft 3142 is disposed along the axial direction of the cooking body, and the transmission shaft 3142 is connected to the centrifugal blade 3143 and the axial flow blade 3144 disposed inside the outer pot 312 through the first shaft hole on the bottom wall 3121 of the outer pot 312.

The transmission shaft 3142 is provided with a supporting table surface 32421, the centrifugal blade 3143 is supported on the supporting table surface 32421 along the axial direction of the cooking body, the sleeve 3145 is sleeved on the transmission shaft 3142, one end of the sleeve 3145 presses and holds the centrifugal blade 3143 on the supporting table surface 32421, the axial flow blade 3144 is supported at the other end of the sleeve 3145 along the axial direction of the cooking body, and the locking piece 3146 further presses and holds the axial flow blade 3144 on the other end of the sleeve 3145.

Axial flow vanes 3144 and centrifugal vanes 3143 may be disposed between the bottom wall of fry basket 320 and bottom wall 3121 of outer pot 312, and in particular may be disposed between the tray of heating assembly 313 and bottom wall 3121 of outer pot 312. The centrifugal blade 3143 and the axial blade 3144 are spaced apart in the axial direction of the cooking body, and the axial blade 3144 is closer to the first overflowing hole 31317 of the heating member 313 than the centrifugal blade 3143.

As shown in fig. 24, axial flow blades 3144 convey the air in the fry basket 320 downward through the first flow channel, centrifugal blades 3143 are located below axial flow blades 3144, and centrifugal blades 3143 transmit the air conveyed downward by axial flow blades 3144 and the air sucked by centrifugal blades 3143 themselves radially outward.

As shown in fig. 23, an axial flow blade 3144 may be provided in the first overflowing hole 31317 to save an installation space in the axial direction of the cooking body. In some embodiments, the axial flow blade 3144 may also be located below the first overflowing hole 31317, or at least partially located in the first overflowing hole 31317, which is not limited in this application and may be selected by one skilled in the art according to actual needs. For example, the first overflowing hole 31317 may be a circular hole, and a radius of the axial flow blade 3144 (i.e., a radius of a projection of a rotation area formed by the rotation of the axial flow blade 3144 on a reference plane perpendicular to an axial direction of the cooking body) is smaller than a radius of the first overflowing hole 31317.

As shown in fig. 24, the axial dimension H1 of the hole wall of the first overflowing hole 31317 is greater than the axial dimension H2 of the axial flow blade 3144 in the axial direction of the cooking body, so that the hole wall of the first overflowing hole 31317 can act as a deflector ring, that is, the first overflowing hole 31317 can function as a deflector, guiding the air in the fry basket 320 to move downward.

The radius of the axial flow blade 3144 may be smaller than the radius of the centrifugal blade 3143 (i.e., the radius of the projection of the rotation area formed by the rotation of the centrifugal blade 3143 on the reference plane perpendicular to the axial direction of the cooking body), so that the air output by the axial flow blade 3144 from the first flow channel can flow to the low-pressure area of the centrifugal blade 3143, and the air output by the axial flow blade 3144 is prevented from flowing to other positions, thereby ensuring that the air flows in the preset direction, and being beneficial to improving the cooking efficiency of air convection cooking.

The axial flow blades 3144 may be flat or curved and form an angle with the horizontal direction (the horizontal direction is perpendicular to the axial direction of the cooking body) so that the axial flow blades 3144 can deliver air downward. In the present embodiment, the axial flow blades 3144 have at least one planar blade region inclined at an angle of 5 ° to 80 ° with respect to a reference plane perpendicular to the axial direction of the cooking body. For example, the inclination angle may be 5 °, 10 °, 30 °, 50 °, 70 °, 80 °, which is not limited in the present application and can be selected by a person skilled in the art according to actual needs.

Sleeve 3145 is used to space centrifugal blades 3143 from axial blades 3144. Specifically, as shown in fig. 25, fig. 25 is a schematic perspective view of the sleeve shown in fig. 22, and the sleeve 3145 may include a cylindrical body 31451, and a first annular flange 31452 and a second annular flange 31453 provided at both ends of the cylindrical body 31451, and the first annular flange 31452 and the second annular flange 31453 have a radius larger than that of the cylindrical body 31451, so that a sectional shape of the sleeve 3145 in an axial direction of the cooking body is provided in an i-shape. The first annular flange 31452 presses the centrifugal blade 3143 against the support table 32421, the axial flow blade 3144 is supported on the second annular flange 31453 in the axial direction of the cooking body, and the locking member 3146 further presses the axial flow blade 3144 against the second annular flange 31453.

As shown in fig. 26, fig. 26 is a schematic structural view of another embodiment of the transmission shaft shown in fig. 22, the transmission shaft 3142 may be arranged in a variable diameter manner to form a first supporting platform 32421 and a second supporting platform 32422 spaced from each other along an axial direction of the cooking body, the centrifugal blade 3143 is supported on the first supporting platform 32421 along the axial direction of the cooking body, the axial flow blade 3144 is supported on the second supporting platform 32421 along the axial direction of the cooking body, and the wind source assembly 314 further includes two locking members, which respectively press the centrifugal blade 3143 and the axial flow blade 3144 on the corresponding supporting platforms.

As shown in fig. 23, in the present embodiment, both axial flow blades 3144 and centrifugal blades 3143 are provided between the bottom wall of the fry basket 320 and the bottom wall 3121 of the outer pot 312. In some embodiments, the axial flow blade 3144 may also be disposed on the first cover 340 of the cooking apparatus, and in such embodiments, the first cover 340 is also disposed with a motor, which drives the axial flow blade 3144 to rotate so as to transmit the air in the fry basket 320 downwards, within the scope easily understood by those skilled in the art, and will not be described herein again.

In the above description of the present specification, the terms "fixed," "mounted," "connected," or "connected" should be construed broadly unless otherwise explicitly specified or limited. For example, with the term "coupled", it can be fixedly coupled, detachably coupled, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship. Therefore, unless the specification explicitly defines otherwise, those skilled in the art can understand the specific meaning of the above terms in the present application according to specific circumstances.

In light of the foregoing description of the present specification, those skilled in the art will also understand that terms used herein, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "lateral," "clockwise," or "counterclockwise," etc., indicate that such terms are based on the orientations and positional relationships illustrated in the drawings of the present specification, and are intended merely for convenience in describing the aspects of the present application and for simplicity in description, and are not intended to indicate or imply that the devices or elements involved must have the particular orientations, be constructed in the particular orientations, and be operated, and therefore such terms are not to be interpreted or interpreted as limiting the scope of the present application.

In addition, the terms "first" or "second", etc. used in this specification are used to refer to numbers or ordinal terms for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present specification, "a plurality" means at least two, for example, two, three or more, and the like, unless specifically defined otherwise.

The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (14)

1. A heating assembly, characterized in that, the heating assembly includes a tray body, a first heating member and a second heating member, wherein the first heating member and the second heating member are respectively fixed on the tray body, a thermal contact area between the first heating member and the tray body is larger than a thermal contact area between the second heating member and the tray body, the first heating member is used for generating heat when the cooking apparatus performs heat conduction cooking, and the second heating member is used for generating heat when the cooking apparatus performs air convection cooking.

2. The heating assembly of claim 1 wherein the tray includes a main tray, the second heating element being supported on the main tray and maintained in an overhead arrangement relative to the main tray.

3. A heating assembly as claimed in claim 2, further comprising a first heating element independently disposed with respect to the body and the second heating element, a first end of the first heating element being connected to the second heating element and a second end of the first heating element being connected to the body, thereby supporting the second heating element on the body.

4. The heating assembly of claim 3, wherein the tray further comprises a first mounting post integrally formed with and protruding from the main tray, the second end of the first securing member being secured to a free end of the first mounting post.

5. The heating assembly as claimed in claim 4, wherein the first fixing member is provided in a sheet shape, a first end of the first fixing member is rolled to form a first receiving groove adapted to the shape of the outer peripheral surface of the second heating member, and a middle region of the first fixing member is provided in a bent shape, so that the first end of the first fixing member is farther from the main tray body than the second end of the first fixing member in the axial direction of the tray body after the second end of the first fixing member is connected to the main tray body.

6. The heating assembly of claim 2 wherein the tray further comprises a first support post integrally formed with the main tray, the second heating element being supported on the first support post.

7. The heating assembly as claimed in claim 6, wherein the first support column is provided at a side wall thereof with a second receiving groove which is spaced apart from the main tray body in the axial direction of the tray body, and the second heating member is embedded in the second receiving groove.

8. The heating assembly of claim 7, wherein the opening of the second receiving groove is oriented away from the center of the main tray.

9. The heating assembly of any one of claims 3 to 8, wherein the second heating element is arranged in a ring shape having a gap, the heating assembly further comprises a second fixing member having both ends connected to both ends of the second heating element, and a middle region of the second fixing member is further connected to the main tray body.

10. The heating assembly of claim 9 wherein said tray further comprises a second mounting post integrally formed with said main tray and protruding from said main tray, a middle region of said second securing member being secured to a free end of said second mounting post.

11. The heating assembly of any one of claims 3 to 8, wherein the tray further comprises a second support post integrally formed with the main tray, a third receiving recess is provided at a connection location of the second support post to the main tray, and the first heating element is embedded in the third receiving recess and is in thermal contact with the main tray.

12. The heating module as claimed in claim 11, wherein the opening direction of the third receiving groove is disposed toward the center of the main tray.

13. The heating assembly as claimed in claim 2, wherein the central region of the main tray body is further provided with a first overflowing hole, the first heating element and the second heating element are disposed around the first overflowing hole, the heating assembly further comprises a shield cover which is disposed at the first overflowing hole and is provided with a plurality of second overflowing holes having a size smaller than that of the first overflowing hole.

14. A cooking apparatus, comprising a cooking body, a frying basket and an inner pot, wherein the cooking body comprises an outer pot and a heating assembly according to any one of claims 1 to 13, the heating assembly is arranged inside the outer pot, the frying basket and the inner pot can be respectively placed into the outer pot, the cooking body controls the first heating element to generate heat when the inner pot is placed into the outer pot so as to perform heat conduction cooking based on the inner pot, and the cooking body controls the second heating element to generate heat when the frying basket is placed into the outer pot so as to perform air convection cooking based on the frying basket.

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