Motor, heating assembly and cooking utensil

Abstract

The invention discloses a motor, a heating assembly and a cooking utensil, the motor comprises a stator assembly, a supporting assembly and a rotor assembly, the stator assembly is provided with a penetrating channel, the supporting assembly comprises a first supporting piece and a second supporting piece, and the first supporting piece and the second supporting piece are installed on the two opposite sides of the stator assembly respectively; part of the first supporting piece and / or part of the second supporting piece are / is embedded in the penetrating channel, the rotor assembly is supported by the first supporting piece and the second supporting piece in a rotatable mode and matched with the first supporting piece and the second supporting piece in a rotatable mode, and part of the rotor assembly is arranged in the penetrating channel and can rotate relative to the penetrating channel. According to the motor provided by the invention, at least one of a part of the first supporting piece and a part of the second supporting piece is embedded into the penetrating channel, and the size of the motor between the first supporting piece and the second supporting piece can be reduced in the axial direction of the rotor assembly, so that the miniaturized production of the motor can be realized.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a motor, a heating component and a cooking utensil. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] Existing cooking appliances usually have a cooking cavity and a hot air heating component. The hot air component is installed on the cooking appliance and has a hot air cavity. The hot air component includes a motor, an impeller and a heating element. The impeller and the heating element are arranged in the hot air cavity. The motor is connected to the impeller in a transmission manner. The impeller is driven by the motor to rotate to realize the flow of air in the cooking cavity and the heating cavity. The heating element heats the air entering the hot air cavity. The heated air enters the cooking cavity to form hot air, and the hot air is used to heat and cook the food in the cooking cavity.

[0004] The motor includes a stator, a rotor, a front bracket and a rear bracket, wherein the front bracket and the rear bracket are respectively installed on opposite sides of the stator, and the rotor is rotatably inserted into the stator and respectively connected to the front bracket and the rear bracket. In order to ensure the reliability of the motor, the thickness of the front bracket and the rear bracket is usually large. In the axial direction of the rotor, the size of the motor (the size of the motor between the front bracket and the rear bracket) is large, making it difficult to achieve miniaturized production of the motor. Summary of the invention

[0005] The purpose of the present invention is to solve the problem of how to reduce the size of the motor at least in the axial direction of the rotor. This purpose is achieved by the following technical solutions:

[0006] A first aspect of the present invention provides a motor, comprising:

[0007] A stator assembly, wherein a through passage is provided on the stator assembly;

[0008] A support assembly, the support assembly comprising a first support member and a second support member, the first support member and the second support member are respectively mounted on opposite sides of the stator assembly, and a portion of the first support member and / or a portion of the second support member is embedded in the penetration channel;

[0009] A rotor assembly is rotatably supported on the first support member and the second support member respectively, and a portion of the rotor assembly is disposed in the penetration channel and can rotate relative to the penetration channel.

[0010] According to the motor of the present invention, at least one of the first support member and the second support member is embedded in the penetration channel in the axial direction of the rotor assembly, so that the size of the motor between the first support member and the second support member can be reduced, thereby realizing miniaturized production of the motor.

[0011] In addition, the motor according to the present invention may also have the following additional technical features:

[0012] In some embodiments of the present invention, the rotor assembly comprises:

[0013] A rotating shaft, part of which is passed through the passing channel, and the rotating shaft is rotatably matched with the first supporting member and the second supporting member respectively;

[0014] The rotor body is fixedly mounted on the rotating shaft, and the rotor body is rotatably arranged in the penetration channel. An inner concave structure is provided on the rotor body along the axial direction of the rotating shaft, and the inner concave structure is used to accommodate a part of the body of the first support member and / or a part of the body of the second support member.

[0015] In some embodiments of the present invention, the concave structure includes a first concave portion, the first concave portion is arranged facing the first support member, and a portion of the body of the first support member is accommodated in the first concave portion.

[0016] In some embodiments of the present invention, the first support member comprises:

[0017] A first bracket, wherein the first bracket is connected and fixed to the stator assembly;

[0018] A first bearing, the rotating shaft is rotatably arranged on the first bracket through the first bearing, and along the axial direction of the rotating shaft, a part of the first bearing is accommodated in the first inner recess.

[0019] In some embodiments of the present invention, the concave structure includes a second concave portion, the second concave portion is arranged facing the second support member, and a portion of the body of the second support member is accommodated in the second concave portion.

[0020] In some embodiments of the present invention, the second support member comprises:

[0021] A second bracket, the second bracket is connected and fixed to the stator assembly;

[0022] The second bearing is used to rotatably arrange the rotating shaft on the second bracket. Along the axial direction of the rotating shaft, part of the second bearing is accommodated in the second inner recess.

[0023] In some embodiments of the present invention, a first receiving groove is provided on the stator assembly, and a portion of the body of the first support member is received in the first receiving groove along the axial direction of the rotating shaft.

[0024] In some embodiments of the present invention, a second receiving groove is provided on the stator assembly, and a portion of the body of the second support member is received in the second receiving groove along the axial direction of the rotating shaft.

[0025] In some embodiments of the present invention, the stator assembly comprises:

[0026] A plurality of silicon steel sheets, wherein the plurality of silicon steel sheets are stacked to form a yoke structure, the penetration channel is provided on the yoke structure, and the first support member and the second support member are respectively connected and fixed to the yoke structure;

[0027] a winding frame, the winding frame being disposed on the yoke structure and spaced apart from the first support member and the second support member;

[0028] An electromagnetic coil is wound on the bobbin.

[0029] In some embodiments of the present invention, in a plane perpendicular to the axial direction of the rotating shaft, the size of the silicon steel sheet in the first direction is a, where a>61mm, and the size of the silicon steel sheet in the second direction is b, where b>63mm, and the second direction is perpendicular to the first direction.

[0030] A second aspect of the present invention provides a heating assembly for a cooking appliance, the heating assembly comprising:

[0031] A hot air hood, the hot air hood is used to form a hot air cavity in the cooking utensil, the hot air cavity is connected to the cooking cavity of the cooking utensil;

[0032] A heating element, the heating element is arranged in the hot air chamber;

[0033] an impeller, the impeller being rotatably disposed in the hot air cavity, the impeller being configured to draw air in the cooking cavity into the hot air cavity and be heated by the heating element, and to deliver the heated air into the cooking cavity;

[0034] According to the motor as described above, the motor is arranged outside the hot air chamber, and the rotating shaft of the motor extends into the hot air chamber and is fixedly connected to the impeller.

[0035] According to the heating component of the present invention, in the motor, at least one of the first support member and the second support member is embedded in the penetration channel, so that the size of the motor between the first support member and the second support member can be reduced in the axial direction of the rotor component, thereby realizing the miniaturized production of the motor, and further reducing the size of the heating component in the axial direction of the rotor component, which facilitates the miniaturized production of the heating component.

[0036] A third aspect of the present invention provides a cooking appliance, comprising:

[0037] A machine body, wherein the machine body has a cooking cavity;

[0038] According to the heating assembly as described above, the heating assembly is mounted on the machine body and provides hot air for the cooking cavity.

[0039] According to the cooking utensil of the present invention, in the motor of the heating component, at least one of the first support member and the second support member is embedded in the penetration channel, so that the size of the motor between the first support member and the second support member can be reduced in the axial direction of the rotor component, thereby realizing the miniaturized production of the motor, and then reducing the size of the heating component in the axial direction of the rotor component, which is convenient for realizing the miniaturized production of the heating component and improving the convenience of layout and installation of the heating component on the cooking utensil. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0041] Figure 1 The structure diagram of the cooking appliance according to the embodiment of the present invention is schematically shown;

[0042] Figure 2 for Figure 1 A schematic diagram of a partial structure of a cooking utensil shown in ;

[0043] Figure 3 for Figure 2 A schematic diagram of the structure of the motor of the cooking appliance shown in;

[0044] Figure 4 for Figure 3 Schematic diagram of the exploded structure of the motor shown in;

[0045] Figure 5 for Figure 3A schematic diagram of the structure of the motor from another perspective shown in FIG.

[0046] Figure 6 for Figure 5 Schematic diagram of the exploded structure of the AA of the motor shown in;

[0047] Figure 7 for Figure 4 A schematic diagram of the structure of the rotor assembly shown in;

[0048] Figure 8 for Figure 7 A schematic structural diagram of the rotor assembly from another perspective shown in ;

[0049] Fig. 9 for Figure 4 A schematic diagram of the structure of the stator assembly shown in ;

[0050] Fig.10 for Figure 4 A schematic structural diagram of the first bracket of the motor is shown in FIG.

[0051] The reference numerals are as follows:

[0052] 100. Cooking utensils;

[0053] 10. Body;

[0054] 11. Cooking chamber;

[0055] 111. Siding;

[0056] 20. Heating component;

[0057] 21. Motor;

[0058] 211. stator assembly;

[0059] 2111, silicon steel sheet; 2111a, penetration channel; 2111b, second receiving groove; 2112, winding frame; 2113, electromagnetic coil;

[0060] 212. Support assembly;

[0061] 2121, first support member; 2121a, first bracket; 2121a1, first convex ring; 2121a2, first receiving groove; 2121b, first bearing; 2122a, second bracket; 2122b, second bearing; 2122, second support member;

[0062] 213. Rotor assembly;

[0063] 2131, rotating shaft; 2132, rotor body; 2132a, first inner recess; 2132b, second inner recess. DETAILED DESCRIPTION

[0064] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0065] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0066] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0067] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0068] like Figures 1 to 10 As shown, according to an embodiment of the present invention, a motor 21 is provided. The motor 21 includes a rotor assembly 213 , a stator assembly 211 and a support assembly 212 .

[0069] Specifically, the support assembly 212 includes two support members, namely a first support member 2121 and a second support member 2122. The first support member 2121 and the second support member 2122 are respectively installed on opposite sides of the stator assembly 211. A penetration channel 2111a is provided on the stator assembly 211, and at least one of a partial body of the first support member 2121 and a partial body of the second support member 2122 is embedded in the penetration channel 2111a. A partial body of the rotor assembly 213 is penetrated in the penetration channel 2111a, and the first support member 2121 and the second support member 2122 are respectively matched with the rotor assembly 213, and the rotor assembly 213 can rotate relative to the first support assembly 212, the second support assembly 212 and the penetration channel 2111a.

[0070] like Figure 3 , Figure 5 and Figure 6 As shown, according to the motor 21 of the present invention, at least one of the partial body of the first support member 2121 and the partial body of the second support member 2122 is embedded in the penetration channel 2111a, and the rotor assembly 213 is axially (such as Figure 3 , Figure 5 or Figure 6 , f is the axial direction of the rotor assembly), so that the size of the motor 21 between the first support member 2121 and the second support member 2122 can be reduced, thereby enabling miniaturized production of the motor 21.

[0071] It should be understood that the first support member 2121 and the second support member 2122 are respectively used to form support for the rotor assembly 213. In order to ensure the supporting strength of the rotor assembly 213, the material thickness of the first support member 2121 (the dimension in the axial direction of the rotor assembly 213) and the material thickness of the second support (the dimension in the axial direction of the rotor assembly 213) are relatively fixed. Therefore, by embedding at least one of the partial body of the first support member 2121 and the partial body of the second support member 2122 in the through channel 2111a of the stator assembly 211, the axial dimension of the motor 21 in the rotor assembly 213 is reduced through the embedded structure, so as to achieve the purpose of reducing the volume of the motor body 10.

[0072] It should be pointed out that in an embodiment of the present invention, a through channel 2111a is formed on the stator assembly 211, and the through channel 2111a is arranged on opposite sides of the stator assembly 211 and has two ports. The first support member 2121 is arranged on one side of the stator assembly 211 and corresponds to one port, and the second support member 2122 is arranged on the other side of the positioning assembly and corresponds to the other port. There are various embodiments for embedding the first support member 2121 and the second support member 2122 in the penetration channel 2111a. For example, part of the body of the first support member 2121 is embedded in the penetration channel 2111a from one port, and the second support member 2122 is embedded in the penetration channel 2111a without a corresponding body. For another example, part of the body of the first support member 2121 is embedded in the penetration channel 2111a from one port, and part of the body of the second support member 2122 is embedded in the penetration channel 2111a from another port. For another example, the first support member 2121 is embedded in the penetration channel 2111a without a corresponding body, and part of the body of the second support member 2122 is embedded in the penetration channel 2111a from another port.

[0073] In addition, in order to facilitate at least one of the partial body of the first support member 2121 and the partial body of the second support member 2122 to be embedded in the through-channel 2111a, a corresponding bevel structure is provided at the corresponding port position of the through-channel 2111a. By providing the bevel structure, it is convenient to embed the partial body of the support member in the through-channel 2111a, thereby improving the convenience of assembly.

[0074] It is further understood that if Figures 3 to 8As shown, in an embodiment of the present invention, the rotor assembly 213 includes a rotating shaft 2131 and a rotor body 2132 disposed on the rotating shaft 2131. The rotor body 2132 is fitted with the rotating shaft 2131 and is disposed in the through passage 2111a of the stator assembly 211. The rotor body 2132 is fixedly connected to the rotating shaft 2131 and rotates synchronously with the rotating shaft 2131. The first support member 2121 and the second support member 2122 are respectively matched with the rotating shaft 2131, and the rotating shaft 2131 can rotate relative to the first support member 2121 and the second support member 2122. The rotor body 2132 has an inner concave structure, which accommodates at least one of the partial body of the first support member 2121 and the partial body of the second support member 2122.

[0075] Specifically, at least one of the partial body of the first support member 2121 and the partial body of the second support member 2122 is embedded in the penetration channel 2111a, wherein the body embedded in the penetration channel 2111a is also received by the concave structure of the rotor body 2132, so that the support member can be further embedded in the interior of the stator assembly 211, in the axial direction of the rotating shaft 2131, thereby further reducing the distance between the first support member 2121 and the second support member 2122, so as to further realize the miniaturization of the motor 21.

[0076] It should be understood that, in an embodiment of the present invention, the rotating shaft 2131 has two ends, one end is rotatably connected to one of the first support member 2121 and the second support member 2122, and the other end is used for power output, and the other of the first support member 2121 and the second support member 2122 is rotatably matched with the rotating shaft 2131 between the two ends of the rotating shaft 2131.

[0077] It should be pointed out that, in the embodiments of the present invention, there are various embodiments for the first support member 2121 and the second support member 2122 to be embedded in the penetration channel 2111a. For example, part of the body of the first support member 2121 is embedded in the penetration channel 2111a from one port, and at the same time, part of the body of the first support member 2121 embedded in the penetration channel 2111a is also received by the concave structure of the rotor body 2132, and the second support member 2122 has no corresponding body embedded in the penetration channel 2111a. For another example, part of the body of the first support member 2121 is embedded in the penetration channel 2111a from one port, and at the same time, part of the body of the first support member 2121 embedded in the penetration channel 2111a is also received by the concave structure of the rotor body 2132. Part of the body of the support member 2121 is also accommodated by the concave structure of the rotor body 2132, and part of the body of the second support member 2122 is embedded in the penetration channel 2111a from another port, and at the same time, part of the body of the second support member 2122 embedded in the penetration channel 2111a is also accommodated by the concave structure of the rotor body 2132; for another example, the first support member 2121 has no corresponding body embedded in the penetration channel 2111a, and part of the body of the second support member 2122 is embedded in the penetration channel 2111a from another port, and at the same time, part of the body of the second support member 2122 embedded in the penetration channel 2111a is also accommodated by the concave structure of the rotor body 2132.

[0078] In some embodiments of the present invention, Figure 4 , Figures 6 to 8 As shown, in the concave structure, a first concave portion 2132a is included, wherein the first support member 2121 is arranged facing the first concave portion 2132a.

[0079] Specifically, part of the body of the first support member 2121 is embedded in the penetration channel 2111a, and the part of the body of the first support member 2121 located in the penetration channel 2111a is simultaneously received by the first recessed portion. By setting the first recessed portion, part of the body of the first support member 2121 is more deeply embedded in the interior of the stator assembly 211, in the axial direction of the rotor assembly 213, thereby reducing the size of the first support member 2121, thereby reducing the volume of the motor 21, and thereby realizing the miniaturized production of the motor 21.

[0080] It should be pointed out that the first recessed portion 2132a is formed on the rotor body 2132, wherein the structure of the first recessed portion 2132a is a groove-like structure, and at least a portion of the first support member 2121 located in the penetration channel 2111a is embedded in the groove-like structure to achieve mutual embedded installation between the first support member 2121, the stator assembly 211 and the rotor body 2132, while also ensuring that the rotor assembly 213 can rotate stably and effectively.

[0081] Furthermore, if Figure 6 As shown, the first support member 2121 includes a first bearing 2121b and a first bracket 2121a. The first bracket 2121a is disposed on the stator assembly 211 and is connected and fixed relative to the stator assembly 211, the first bearing 2121b is disposed on the first bracket 2121a, the rotating shaft 2131 of the rotor assembly 213 is mounted on the first bearing 2121b, a part of the first bearing 2121b is embedded in the penetration channel 2111a, and is received by the first inner recess 2132a on the rotor body 2132.

[0082] Specifically, the first bearing 2121b includes a first inner ring, a first outer ring and a plurality of first rollers, wherein the first outer ring is sleeved on the radially outer side of the first inner ring, and the plurality of first rollers are rollingly arranged between the first inner ring and the first outer ring, the first inner ring is sleeved and fixed on the rotating shaft 2131 of the rotor assembly 213, and the first outer ring is fixed on the first bracket 2121a, and in the axial direction of the rotating shaft 2131, the first bearing 2121b protrudes from the first bracket 2121a, and the part of the first bearing 2121b protruding from the first bracket 2121a is embedded in the through channel 2111a (spaced apart from the through channel 2111a), and is accommodated by the first inner recess 2132a (spaced apart from the first inner recess 2132a). The first bearing 2121b is provided to realize the rotatable connection between the rotating shaft 2131 and the first bracket 2121a. In the axial direction of the rotating shaft 2131, part of the body of the first bearing 2121b is embedded in the penetration channel 2111a and received by the first inner recess 2132a of the rotor body 2132, thereby reducing the size of the first bracket 2121a at the position where the first bearing 2121b is installed, thereby reducing the volume of the motor 21.

[0083] It should be pointed out that if Fig.10As shown, a first receiving groove 2121a2 is provided on the first bracket 2121a, and the first receiving groove 2121a2 is used to accommodate a part of the structure of the first bearing 2121b. Another part of the structure of the first bearing 2121b is embedded in the penetration channel 2111a and is received by the first inner recess 2132a on the rotor body 2132. A first convex ring 2121a1 is provided on the edge of the notch of the first accommodating groove 2121a2. The first convex ring 2121a1 is provided on the radial outer side of the first bearing 2121b and abuts against the first outer ring of the first bearing 2121b. When the first bracket 2121a is installed on the stator assembly 211, the first convex ring 2121a1 is also embedded in the penetration channel 2111a. By providing the first convex ring 2121a1, the contact area between the first bracket 2121a and the first bearing 2121b is increased, thereby ensuring the stability of the first bracket 2121a supporting the first bearing 2121b, thereby ensuring the stable operation of the rotor assembly 213. In addition, the first convex ring 2121a1 is embedded in the penetration channel 2111a, thereby reducing the problem of the first convex ring 2121a1 increasing the size of the motor 21 in the axial direction of the rotating shaft 2131, which is further beneficial to reducing the overall volume of the motor 21.

[0084] In some embodiments of the present invention, Figure 6 and Figure 8 As shown, the concave structure further includes a second concave portion 2132b, wherein the second support member 2122 is arranged facing the second concave portion 2132b.

[0085] Specifically, part of the body of the second support member 2122 is embedded in the penetration channel 2111a, and the part of the body of the second support member 2122 located in the penetration channel 2111a is simultaneously accommodated by the second recessed portion. By providing the second recessed portion, part of the body of the second support member 2122 is more deeply embedded in the interior of the stator assembly 211, in the axial direction of the rotor assembly 213, thereby reducing the size of the second support member 2122, thereby reducing the volume of the motor 21, and thereby realizing the miniaturized production of the motor 21.

[0086] It should be pointed out that the second inner recess 2132b is formed on the rotor body 2132, wherein the structure of the second inner recess 2132b is a groove-like structure, and at least part of the body of the second support member 2122 located in the penetration channel 2111a is embedded in the groove-like structure to achieve mutual embedded installation between the second support member 2122, the stator assembly 211 and the rotor body 2132, while also ensuring that the rotor assembly 213 can rotate stably and effectively.

[0087] Furthermore, if Figure 6As shown, the second support member 2122 includes a second bearing 2122b and a second bracket 2122a. The second bracket 2122a is disposed on the stator assembly 211 and is connected and fixed relative to the stator assembly 211, the second bearing 2122b is disposed on the second bracket 2122a, the rotating shaft 2131 of the rotor assembly 213 is mounted on the second bearing 2122b, a part of the second bearing 2122b is embedded in the penetration channel 2111a, and is received by the second inner recess 2132b on the rotor body 2132.

[0088] Specifically, the second bearing 2122b includes a second inner ring, a second outer ring and a plurality of second rollers, wherein the second outer ring is sleeved on the radially outer side of the second inner ring, and the plurality of second rollers are rollingly arranged between the second inner ring and the second outer ring, the second inner ring is sleeved and fixed on the rotating shaft 2131 of the rotor assembly 213, and the second outer ring is fixed on the second bracket 2122a, and in the axial direction of the rotating shaft 2131, the second bearing 2122b protrudes from the second bracket 2122a, and the part of the second bearing 2122b protruding from the second bracket 2122a is embedded in the through channel 2111a (spaced apart from the through channel 2111a), and is accommodated by the second inner recess 2132b (spaced apart from the second inner recess 2132b). A second bearing 2122b is provided to realize a rotatable connection between the rotating shaft 2131 and the second bracket 2122a. In the axial direction of the rotating shaft 2131, part of the body of the second bearing 2122b is embedded in the penetration channel 2111a and received by the second inner recess 2132b of the rotor body 2132, thereby reducing the size of the second bracket 2122a at the position where the second bearing 2122b is installed, thereby reducing the volume of the motor 21.

[0089] It should be noted that a second receiving groove is provided on the second bracket 2122a, and the second receiving groove is used to accommodate a part of the structure of the second bearing 2122b. The other part of the structure of the second bearing 2122b is embedded in the penetration channel 2111a and is accommodated by the second inner recess 2132b on the rotor body 2132. A second convex ring is provided on the edge of the groove of the second accommodating groove. The second convex ring is provided on the radial outer side of the second bearing 2122b and abuts against the second outer ring of the second bearing 2122b. When the second bracket 2122a is installed on the stator assembly 211, the second convex ring is also embedded in the penetration channel 2111a. By providing the second convex ring, the contact area between the second bracket 2122a and the second bearing 2122b is increased, thereby ensuring the stability of the second bracket 2122a supporting the second bearing 2122b, and further ensuring the stable operation of the rotor assembly 213. In addition, the second convex ring is embedded in the penetration channel 2111a, thereby reducing the problem of the second convex ring increasing the size of the motor 21 in the axial direction of the rotating shaft 2131, which is further beneficial to reducing the overall volume of the motor 21.

[0090] Furthermore, a first receiving groove is provided on the side of the stator assembly 211 facing the first support member 2121 , and a portion of the body of the first support member 2121 is received by the first receiving groove along the axial direction of the rotating shaft 2131 .

[0091] By setting the first receiving groove, the first support member 2121 can be further embedded in the stator assembly 211 in the axial direction of the rotating shaft 2131 (the axial direction of the rotating shaft 2131 is consistent with the axial direction of the rotor assembly 213), so that the size of the motor 21 in the axial direction of the rotating shaft 2131 can be further reduced (along the axial direction of the rotating shaft 2131, the size of the motor 21 between the first support member 2121 and the second support member 2122), thereby enabling the motor 21 to be miniaturized.

[0092] It should be noted that part of the main body of the first bracket 2121a is disposed in the first receiving groove, and the first bracket 2121a is connected and fixed to the supporting assembly 212 by welding, bonding, clamping or screw connection.

[0093] In addition, in the embodiment of the present invention, the first bracket 2121a is an aluminum part and is processed and manufactured by integral molding. The aluminum first bracket 2121a can effectively reduce the weight of the motor 21, and the integral molding can ensure the overall strength of the first bracket 2121a and reduce the manufacturing cost.

[0094] Furthermore, if Figure 3 , Figure 4 as well as Fig. 9As shown, a second receiving groove 2111 b is provided on the side of the stator assembly 211 facing the second support member 2122 , and a portion of the body of the second support member 2122 is received by the second receiving groove 2111 b along the axial direction of the rotating shaft 2131 .

[0095] By providing the second receiving groove 2111b, the second support member 2122 can be further embedded in the stator assembly 211 in the axial direction of the rotating shaft 2131 (the axial direction of the rotating shaft 2131 is consistent with the axial direction of the rotor assembly 213), so that the size of the motor 21 in the axial direction of the rotating shaft 2131 can be further reduced (along the axial direction of the rotating shaft 2131, the size of the motor 21 between the first support member 2121 and the second support member 2122), thereby enabling the motor 21 to be miniaturized.

[0096] It should be noted that part of the main body of the first bracket 2121a is disposed in the first receiving groove, and the first bracket 2121a is connected and fixed to the supporting assembly 212 by welding, bonding, clamping or screw connection.

[0097] In addition, in the embodiment of the present invention, the second bracket 2122a is an aluminum part and is processed and manufactured by integral molding. The aluminum second bracket 2122a can further reduce the weight of the motor 21, and the integral molding can ensure the overall strength of the second bracket 2122a and reduce the manufacturing cost.

[0098] Furthermore, if Figure 4 , Figure 6 , Figure 7 as well as Figure 8 As shown, in an embodiment of the present invention, the rotor assembly 213 includes a rotating shaft 2131 and a rotor body 2132 arranged on the rotating shaft 2131, wherein the rotor body 2132 is a permanent magnet, and the stator assembly 211 includes an electromagnetic coil 2113, a winding member, and a yoke structure formed by a plurality of silicon steel sheets 2111. The yoke structure is formed by stacking a plurality of silicon steel sheets 2111, a penetration channel 2111a is provided on the yoke structure, a first support member 2121 is connected and fixed to one side of the yoke structure, and a second support member 2122 is connected and fixed to the other side of the yoke structure. The yoke structure is arranged through the winding frame 2112, and the electromagnetic coil 2113 is wound on the winding frame 2112.

[0099] When the motor 21 is running, the stator assembly 211 is energized to generate an alternating magnetic field, and the alternating magnetic field is used to drive the rotation of the rotor assembly 213. By arranging the electromagnetic coil 2113 in the stator assembly 211, the increase in the overall volume of the motor 21 caused by arranging the electromagnetic coil 2113 on the rotor assembly 213 can be reduced.

[0100] It should be noted that, in the embodiment of the present invention, the first receiving groove and the second receiving groove 2111b are respectively opened on the opposite sides of the yoke structure.

[0101] Furthermore, if Fig. 9 As shown, in a plane perpendicular to the axis of the rotating shaft 2131, in the first direction, the size of the silicon steel sheet 2111 is a, and in the second direction (the second direction is perpendicular to the first direction), the size of the silicon steel sheet 2111 is b. Among them, a is greater than 61 mm, and b is greater than 63 mm.

[0102] Since the corresponding embedded structure (the first receiving groove, the second receiving groove 2111b, and the penetration channel 2111a with the embedded structure) is provided on the yoke structure, the magnetic flux will be reduced under the condition of the original number of turns of the electromagnetic coil 2113, and the dimensions a and b of the silicon steel sheet 2111 can be set so that the dimension of the silicon steel sheet 2111 in the plane perpendicular to the axis of the rotating shaft 2131 can be increased (the increase in the dimension in this direction will not affect the dimension between the first support member 2121 and the second support member 2122 in the axial direction of the rotating shaft 2131), thereby ensuring that the magnetic flux of the stator assembly 211 can be guaranteed under the condition of the same electromagnetic coil 2113, thereby ensuring that the performance of the motor 21 is not affected.

[0103] It should be pointed out that, in the embodiments of the present invention, the value of a can be 62mm, 63mm, 64mm, 65mm, 66mm; the value of b can be 64mm, 65mm, 66mm, 67mm, 68mm, 69mm.

[0104] A comparison table of an embodiment of the motor 21 of the present invention and a motor in the prior art is as follows:

[0105]

[0106]

[0107] By comparison, it can be seen that compared with the prior art, the motor 21 in the present invention has a significantly reduced size between the first support member 2121 and the second support member 2122 in the axial direction of the rotating shaft 2131. At the same time, by setting the size of the silicon steel sheet 2111, it is ensured that the performance of the motor 21 is basically unaffected.

[0108] like Figures 1 to 10As shown, the present invention also proposes a heating assembly 20 for a cooking device 100, the heating assembly 20 includes a hot air hood, a heating element, an impeller, and a motor 21 as described above. The hot air hood is used to enclose a hot air cavity with a wall plate 111 in the cooking device 100, the hot air cavity is connected to the cooking cavity 11 of the cooking device 100, the heating element is arranged in the hot air cavity, the impeller is rotatably arranged in the hot air cavity, the impeller is arranged to suck the air in the cooking cavity 11 into the hot air cavity and be heated by the heating element, and to send the heated air into the cooking cavity 11, the motor 21 is arranged outside the hot air cavity, and the rotating shaft 2131 of the motor 21 extends into the hot air cavity and is fixedly connected to the impeller.

[0109] According to the heating component 20 of the present invention, in the motor 21, at least one of the part of the first support member 2121 and the part of the second support member 2122 is embedded in the penetration channel 2111a, so that the size of the motor 21 between the first support member 2121 and the second support member 2122 can be reduced in the axial direction of the rotor component 213, thereby enabling the miniaturized production of the motor 21, and further enabling the size of the heating component 20 to be reduced in the axial direction of the rotor component 213, thereby facilitating the miniaturized production of the heating component 20.

[0110] like Figures 1 to 10 As shown, the present invention further provides a cooking appliance 100 , which includes a heating component 20 as described above and a body 10 having a cooking cavity 11 . The heating component 20 is installed on the body 10 and provides hot air to the cooking cavity 11 .

[0111] According to the cooking utensil 100 of the present invention, in the motor 21 of the heating component 20, at least one of a part of the first support member 2121 and a part of the second support member 2122 is embedded in the penetration channel 2111a, so that the size of the motor 21 between the first support member 2121 and the second support member 2122 can be reduced in the axial direction of the rotor component 213, thereby enabling miniaturized production of the motor 21, and further reducing the size of the heating component 20 in the axial direction of the rotor component 213, which facilitates miniaturized production of the heating component 20 and improves the convenience of layout and installation of the heating component 20 on the cooking utensil 100.

[0112] In some embodiments of the present invention, the above-mentioned cooking utensil is a hot air oven (in other embodiments of the present invention, the cooking utensil may be a microwave oven or an air fryer with a hot air function, etc.), and the structure of other parts of the hot air oven may refer to the prior art, and will not be described in detail in this application.

[0113] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A motor, characterized in that: The motor comprises: A stator assembly, wherein a through passage is provided on the stator assembly; A support assembly, the support assembly comprising a first support member and a second support member, the first support member and the second support member are respectively mounted on opposite sides of the stator assembly, and a portion of the first support member and / or a portion of the second support member is embedded in the penetration channel; A rotor assembly is rotatably supported on the first support member and the second support member respectively, and a portion of the rotor assembly is disposed in the penetration channel and can rotate relative to the penetration channel.

2. The motor according to claim 1, characterized in that The rotor assembly comprises: A rotating shaft, part of which is passed through the passing channel, and the rotating shaft is rotatably matched with the first supporting member and the second supporting member respectively; The rotor body is fixedly mounted on the rotating shaft, and the rotor body is rotatably arranged in the penetration channel. An inner concave structure is provided on the rotor body along the axial direction of the rotating shaft, and the inner concave structure is used to accommodate a part of the body of the first support member and / or a part of the body of the second support member.

3. The motor according to claim 2, characterized in that The concave structure includes a first concave portion, the first concave portion is arranged facing the first support member, and a portion of the body of the first support member is accommodated and arranged in the first concave portion.

4. The motor according to claim 3, characterized in that The first support member comprises: A first bracket, wherein the first bracket is connected and fixed to the stator assembly; A first bearing, the rotating shaft is rotatably arranged on the first bracket through the first bearing, and along the axial direction of the rotating shaft, a part of the first bearing is accommodated in the first inner recess.

5. The motor according to claim 2, characterized in that: The concave structure includes a second concave portion, the second concave portion is arranged facing the second support member, and a portion of the body of the second support member is accommodated and arranged in the second concave portion.

6. The motor according to claim 5, characterized in that The second support member comprises: A second bracket, the second bracket is connected and fixed to the stator assembly; The second bearing is used to rotatably arrange the rotating shaft on the second bracket. Along the axial direction of the rotating shaft, part of the second bearing is accommodated in the second inner recess.

7. The motor according to any one of claims 2 to 6, characterized in that: The stator assembly is provided with a first receiving groove, and a portion of the body of the first support member is received in the first receiving groove along the axial direction of the rotating shaft.

8. The motor according to any one of claims 2 to 6, characterized in that: The stator assembly is provided with a second receiving groove, and a part of the body of the second support member is received in the second receiving groove along the axial direction of the rotating shaft.

9. The motor according to any one of claims 2 to 6, characterized in that: The stator assembly comprises: A plurality of silicon steel sheets, wherein the plurality of silicon steel sheets are stacked to form a yoke structure, the penetration channel is provided on the yoke structure, and the first support member and the second support member are respectively connected and fixed to the yoke structure; a winding frame, the winding frame being disposed on the yoke structure and spaced apart from the first support member and the second support member; An electromagnetic coil is wound on the bobbin.

10. The motor according to claim 9, characterized in that In a plane perpendicular to the axial direction of the rotating shaft, the dimension of the silicon steel sheet in the first direction is a, where a>61mm, and the dimension of the silicon steel sheet in the second direction is b, where b>63mm, and the second direction is perpendicular to the first direction.

11. A heating assembly for a cooking appliance, characterized in that: The heating assembly comprises: A hot air hood, the hot air hood is used to form a hot air cavity in the cooking utensil, the hot air cavity is connected to the cooking cavity of the cooking utensil; A heating element, the heating element is arranged in the hot air chamber; an impeller, the impeller being rotatably disposed in the hot air cavity, the impeller being configured to draw air in the cooking cavity into the hot air cavity and be heated by the heating element, and to deliver the heated air into the cooking cavity; According to any one of claims 1 to 10, the motor is arranged outside the hot air chamber, and the rotating shaft of the motor extends into the hot air chamber and is fixedly connected to the impeller.

12. A cooking utensil, characterized in that: The cooking appliance comprises: A machine body, wherein the machine body has a cooking cavity; The heating assembly according to claim 11, wherein the heating assembly is mounted on the machine body and provides hot air to the cooking cavity.

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