Cooking utensil

Abstract

The utility model relates to a cooking utensil which comprises a cooking main body and a fan assembly, the fan assembly is installed on the cooking main body, the cooking main body is provided with a cooking cavity, the fan assembly comprises a motor, first fan blades and second fan blades, the motor comprises a stator, a rotor and a motor shaft, the rotor is rotatably arranged in the stator, the rotor is fixedly connected with the motor shaft, and the first fan blades and the second fan blades are arranged in the motor shaft. The motor shaft extends out of the two ends of the stator, the first fan blade is arranged at the end, away from the cooking cavity, of the motor shaft, the second fan blade is arranged at the end, close to the cooking cavity, of the motor shaft, the first fan blade extends towards the second fan blade, and at least part of the first fan blade surrounds the circumferential side of the stator. According to the cooking utensil, the first fan blade and the stator are at least partially overlapped in the axial direction of the motor shaft, so that the size of the fan assembly in the axial direction of the motor shaft can be shortened, the overall size of the fan assembly is reduced, and space waste caused by the fact that the position, where the fan assembly is installed, of the cooking utensil is large is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of small household appliances, and in particular to a cooking utensil. Background Art

[0002] An air fryer or an oven with an air frying function usually has a fan assembly disposed on the upper portion thereof, and the fan assembly usually includes two sets of fan blades, which are respectively used for heat dissipation and hot air circulation in the cooking cavity. However, the existing fan assembly usually has the two sets of fan blades disposed sequentially at the same end of the motor shaft, and the overall size of the fan assembly is relatively large, thus causing a large waste of space on the upper portion of the air fryer or the oven with an air frying function. Utility Model Content

[0003] Based on this, it is necessary to provide a cooking appliance that can reduce the overall volume of the fan assembly.

[0004] A cooking appliance comprises a cooking body and a fan assembly, wherein the fan assembly is installed on the cooking body, and the cooking body has a cooking cavity. The fan assembly comprises a motor, a first fan blade and a second fan blade, wherein the motor comprises a stator, a rotor and a motor shaft, wherein the rotor is rotatably arranged in the stator, the rotor is fixedly connected to the motor shaft, and the motor shaft extends from two ends of the stator, the first fan blade is arranged at an end of the motor shaft away from the cooking cavity, the second fan blade is arranged at an end of the motor shaft close to the cooking cavity, the first fan blade extends toward the second fan blade, and the first fan blade at least partially surrounds the circumference of the stator.

[0005] In the cooking appliance provided by the present application, the first fan blade and the second fan blade are arranged at both ends of the motor shaft, the first fan blade extends toward the second fan blade, and the first fan blade at least partially surrounds the circumference of the stator. Therefore, along the axial direction of the motor shaft, the first fan blade and the stator at least partially overlap, thereby shortening the size of the fan assembly in the axial direction of the motor shaft, thereby reducing the overall volume of the fan assembly, thereby avoiding a large waste of space at the location where the fan assembly is installed in the cooking appliance.

[0006] In one embodiment, the first fan blade includes a first base and a first blade, the first base is fixedly connected to the motor shaft, the first blade is connected to a side of the first base facing the second fan blade, and the first blade surrounds the circumference of the stator.

[0007] In this way, the space on the outer periphery of the stator can be fully utilized, effectively shortening the axial length of the fan assembly. In addition, the first fan blade is closer to the stator, which can dissipate heat from the stator more efficiently.

[0008] In one embodiment, the maximum outer diameter of the stator is smaller than the inner diameter of the first blade.

[0009] In this way, interference between the stator and the first fan blade is avoided, ensuring that the first fan blade can rotate normally.

[0010] In one embodiment, the cooking body includes an outer shell and an inner pot, the inner pot is arranged in the outer shell, and the inner pot surrounds the cooking cavity, the cooking utensil also includes a fixed bracket, the fixed bracket is installed between the inner pot and the outer shell, and the fan assembly is installed on the fixed bracket.

[0011] Thus, providing a fixed bracket makes the installation of the fan assembly more flexible and convenient.

[0012] In one embodiment, a first chamber is formed between the fixing bracket and the outer shell, a second chamber is formed between the fixing bracket and the inner tank, the stator, the rotor and the first fan blade are all installed in the first chamber, and the second fan blade is installed in the second chamber.

[0013] In this way, the first fan blade and the second fan blade are respectively located on both sides of the fixing bracket, which is conducive to maintaining the balance of the structure, so that the fan assembly is stably installed on the fixing bracket. In addition, the fixing bracket can reduce the airflow interference between the first fan blade and the second fan blade.

[0014] In one of the embodiments, the stator is mounted on the fixing bracket by fasteners, and the fan assembly further includes a shock-absorbing pad, which is arranged between the stator and the fixing bracket.

[0015] In this way, the installation is convenient by means of fasteners. The vibration of the fan assembly can be reduced by providing a shock-absorbing pad, thereby reducing noise.

[0016] In one embodiment, a fixing groove is provided on the fixing bracket, and the shock-absorbing pad is at least partially accommodated in the fixing groove.

[0017] In this way, during installation, the shock-absorbing pad can be placed in the fixing groove first, and then the stator and the fixing bracket are assembled together, so that the shock-absorbing pad can be clamped between the stator and the fixing bracket. It can be seen that the setting of the fixing groove facilitates the installation of the shock-absorbing pad.

[0018] In one of the embodiments, a positioning protrusion is provided on the shock-absorbing pad, and a positioning hole is provided at the bottom of the fixing groove, and the positioning protrusion cooperates with the positioning hole to limit the installation position of the shock-absorbing pad in the fixing groove.

[0019] In this way, the shock-absorbing pad can be more efficiently and accurately placed in the fixing groove through the cooperation of the positioning protrusion and the positioning hole, thereby improving the installation efficiency of the fan assembly.

[0020] In one embodiment, the second fan blade includes a second base and a second blade, the second base is fixedly connected to the motor shaft, and the second blade is connected to a side of the second base facing the cooking cavity.

[0021] In this way, the second fan blade can blow air into the cooking cavity, thereby forming a hot air circulation flow in the cooking cavity.

[0022] In one embodiment, the cooking appliance is an oven, an air fryer or an integrated stove, and the fan assembly is disposed above or on the side of the cooking cavity.

[0023] In this way, the size of the cooking appliance in the height direction or the lateral direction can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 is a cross-sectional view of a cooking device according to an embodiment of the present application;

[0026] Figure 2 for Figure 1 Schematic diagram of some structures;

[0027] Figure 3 An exploded view of a cooking appliance according to an embodiment of the present application;

[0028] Figure 4 A three-dimensional diagram of a motor according to an embodiment of the present application;

[0029] Figure 5 for Figure 4 Exploded diagram of

[0030] Figure 6 A three-dimensional diagram of a first fan blade according to an embodiment of the present application;

[0031] Figure 7 A three-dimensional diagram of a fixing bracket according to an embodiment of the present application;

[0032] Figure 8 It is a three-dimensional diagram of a shock-absorbing pad according to an embodiment of the present application.

[0033] Figure numerals: 10, cooking body; 11, outer shell; 12, liner; 13, cooking cavity; 14, first cavity; 15, second cavity; 20, fan assembly; 21, motor; 211, stator; 2111, third mounting hole; 212, rotor; 213, motor shaft; 214, fixing bracket; 22, first fan blade; 221, first base; 222, first fan blade; 23, second fan blade; 231, second base; 232, second fan blade; 24, shock-absorbing pad; 241, positioning protrusion; 242, second mounting hole; 30, fixing bracket; 31, fixing groove; 311, positioning hole; 312, first mounting hole; 32, reinforcing rib. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0035] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0039] See also Figures 1 to 3 The present application provides a cooking appliance, including a cooking body 10 and a fan assembly 20, wherein the fan assembly 20 is mounted on the cooking body 10, and the cooking body 10 has a cooking cavity 13. The fan assembly 20 includes a motor 21, a first fan blade 22, and a second fan blade 23, wherein the motor 21 includes a stator 211, a rotor 212, and a motor shaft 213, wherein the rotor 212 is rotatably disposed in the stator 211, the rotor 212 is fixedly connected to the motor shaft 213, and the motor shaft 213 extends from both ends of the stator 211, the first fan blade 22 is disposed at one end of the motor shaft 213 away from the cooking cavity 13, the second fan blade 23 is disposed at one end of the motor shaft 213 close to the cooking cavity 13, the first fan blade 22 extends toward the second fan blade 23, and the first fan blade 22 at least partially surrounds the circumference of the stator 211. In this way, along the axial direction of the motor shaft 213, the first fan blade 22 and the stator 211 at least partially overlap, thereby shortening the axial size of the fan assembly 20 in the motor shaft 213, and also reducing the overall volume of the fan assembly 20, thereby avoiding a large waste of space at the location where the fan assembly 20 is installed in the cooking appliance.

[0040] See also Figure 4 and Figure 5 The motor 21 further includes two fixing frames 214, the rotor 212 is fixedly connected to the motor shaft 213, and both ends of the motor shaft 213 are rotatably connected to the stator 211 through the fixing frames 214, so that the rotor 212 is installed in the stator 211 through the fixing frames 214. In one embodiment, the motor 21 adopts a shaded pole motor, which is cheap and can greatly reduce the production cost.

[0041] See also Figure 2 and Figure 6 The first fan blade 22 includes a first base 221 and a first blade 222. The first base 221 is fixedly connected to the motor shaft 213. The first blade 222 is connected to the side of the first base 221 facing the second fan blade 23, and the first blade 222 surrounds the stator 211. In this way, the space on the outer peripheral side of the stator 211 can be fully utilized, effectively shortening the axial length of the fan assembly 20. In addition, the first blade 222 is closer to the stator 211, which can dissipate heat from the stator 211 more efficiently.

[0042] The maximum outer diameter D1 of the stator 211 is smaller than the inner diameter D2 of the first blade 222. In this way, interference between the stator 211 and the first blade 222 is avoided, ensuring that the first blade 222 can rotate normally.

[0043] See also Figure 1 Furthermore, the cooking body 10 includes an outer shell 11 and an inner pot 12, the inner pot 12 is arranged in the outer shell 11, and the inner pot 12 surrounds a cooking cavity 13. The cooking appliance also includes a fixing bracket 30, the fixing bracket 30 is installed between the inner pot 12 and the outer shell 11, and the fan assembly 20 is installed on the fixing bracket 30. In this way, the setting of the fixing bracket 30 makes the installation of the fan assembly 20 more flexible and convenient.

[0044] Further, a first chamber 14 is formed between the fixing bracket 30 and the housing 11, and a second chamber 15 is formed between the fixing bracket 30 and the inner tank 12. The stator 211, the rotor 212 and the first fan blade 22 are all installed in the first chamber 14, and the second fan blade 23 is installed in the second chamber 15. In this way, the first fan blade 22 and the second fan blade 23 are respectively located on both sides of the fixing bracket 30, which is conducive to maintaining the balance of the structure, so that the fan assembly 20 is stably installed on the fixing bracket 30. In addition, the fixing bracket 30 can reduce the airflow interference between the first fan blade 22 and the second fan blade 23.

[0045] Furthermore, the stator 211 is mounted on the fixing bracket 30 by a fastener, so that the installation is convenient. The fastener can be a screw, which passes through the fixing bracket 30 and is connected to the stator 211, so that the stator 211 can be mounted on the fixing bracket 30.

[0046] Furthermore, the fan assembly 20 further includes a shock absorbing pad 24, and the shock absorbing pad 24 is arranged between the stator 211 and the fixing bracket 30. In this way, the vibration of the fan assembly 20 can be reduced, thereby reducing the noise.

[0047] See also Figure 2 and Figure 7The fixing bracket 30 is provided with a fixing groove 31, and the shock absorbing pad 24 is at least partially received in the fixing groove 31. In this way, during installation, the shock absorbing pad 24 can be placed in the fixing groove 31 first, and then the stator 211 and the fixing bracket 30 are assembled together, so that the shock absorbing pad 24 can be clamped between the stator 211 and the fixing bracket 30. It can be seen that the provision of the fixing groove 31 facilitates the installation of the shock absorbing pad 24.

[0048] See also Figure 7 and Figure 8 Furthermore, a positioning protrusion 241 is provided on the shock absorbing pad 24, and a positioning hole 311 is provided at the bottom of the fixing groove 31. The positioning protrusion 241 cooperates with the positioning hole 311 to limit the installation position of the shock absorbing pad 24 in the fixing groove 31. In this way, the shock absorbing pad 24 can be more efficiently and accurately placed in the fixing groove 31 through the cooperation of the positioning protrusion 241 and the positioning hole 311, thereby improving the installation efficiency of the fan assembly 20.

[0049] For further information, see Figure 2 , Figure 7 and Figure 8 A first mounting hole 312 is also provided at the bottom of the fixing groove 31, a second mounting hole 242 is provided on the shock absorbing pad 24, and a third mounting hole 2111 is provided on the stator 211. The fasteners are sequentially passed through the first mounting hole 312 and the second mounting hole 242 and are threadedly connected with the third mounting hole 2111, so that the shock absorbing pad 24 is installed between the stator 211 and the fixing bracket 30, thereby preventing the shock absorbing pad 24 from falling off.

[0050] Furthermore, the fixing bracket 30 is provided with a reinforcing rib 32, so that the structural strength of the fixing bracket 30 can be increased, so that the fixing bracket 30 can better support the fan assembly 20. The reinforcing rib 32 can be formed by stamping the fixing bracket 30, and the processing technology is mature.

[0051] See also Figure 1 and Figure 2 The second fan blade 23 includes a second base 231 and a second blade 232, the second base 231 is fixedly connected to the motor shaft 213, and the second blade 232 is connected to the side of the second base 231 facing the cooking cavity 13. In this way, the second blade 232 can blow air into the cooking cavity 13, so that hot air circulates in the cooking cavity 13.

[0052] See also Figure 1 and Figure 3The cooking appliance provided in the present application may be an oven, an air fryer or an integrated stove, and the cooking appliance is provided with an opening on the front side, through which food is taken in and out of the cooking cavity 13. In one embodiment, the fan assembly 20 is arranged above the cooking cavity 13. Since the cooking appliance usually has a heating element, such as a heating tube, arranged on the upper part of the cooking cavity 13, the fan assembly 20 is arranged above the cooking cavity 13 to blow the hot air around the heating element to other positions of the cooking cavity 13, so as to realize the circulation of hot air in the cooking cavity 13, thereby achieving the effect of air frying. Of course, in other embodiments, the fan assembly may also be arranged on the side of the cooking cavity, for example, on the side of the cooking cavity away from the opening.

[0053] It can be understood that when the fan assembly 20 is arranged above the cooking cavity 13, the motor shaft 213 is arranged along the height direction of the cooking body 10, so that the axial direction of the motor shaft 213 is also the height direction of the cooking body 10. It can be seen that the present application arranges the first fan blade 22 and the second fan blade 23 at both ends of the motor shaft 213, and the first fan blade 22 at least partially surrounds the stator 211, so that the first fan blade 22 and the stator 211 can share a part of the height space, so that the height size of the cooking utensil can be reduced. Similarly, when the fan assembly is arranged on the side of the cooking cavity away from the opening, the thickness size of the cooking utensil can be reduced.

[0054] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A cooking utensil, characterized in that: The cooking device comprises a cooking body (10) and a fan assembly (20), wherein the fan assembly (20) is installed on the cooking body (10), and the cooking body (10) has a cooking cavity (13). The fan assembly (20) comprises a motor (21), a first fan blade (22) and a second fan blade (23); the motor (21) comprises a stator (211), a rotor (212) and a motor shaft (213); the rotor (212) is rotatably disposed in the stator (211); the rotor (212) is fixedly connected to the motor shaft (213); the motor shaft (213) extends from both ends of the stator (211); the first fan blade (22) is disposed at an end of the motor shaft (213) away from the cooking cavity (13); the second fan blade (23) is disposed at an end of the motor shaft (213) close to the cooking cavity (13); the first fan blade (22) extends toward the second fan blade (23), and the first fan blade (22) at least partially surrounds the circumference of the stator (211).

2. The cooking device according to claim 1, characterized in that: The first fan blade (22) comprises a first base (221) and a first blade (222), wherein the first base (221) is fixedly connected to the motor shaft (213), the first blade (222) is connected to a side of the first base (221) facing the second fan blade (23), and the first blade (222) surrounds the circumference of the stator (211).

3. The cooking device according to claim 2, characterized in that: The maximum outer diameter of the stator (211) is smaller than the inner diameter of the first blade (222).

4. The cooking device according to claim 1, characterized in that: The cooking body (10) comprises an outer shell (11) and an inner pot (12), wherein the inner pot (12) is arranged in the outer shell (11), and the inner pot (12) surrounds the cooking cavity (13). The cooking appliance further comprises a fixing bracket (30), wherein the fixing bracket (30) is installed between the inner pot (12) and the outer shell (11), and the fan assembly (20) is installed on the fixing bracket (30).

5. The cooking device according to claim 4, characterized in that: A first chamber (14) is formed between the fixing bracket (30) and the outer shell (11), and a second chamber (15) is formed between the fixing bracket (30) and the inner container (12). The stator (211), the rotor (212) and the first fan blade (22) are all installed in the first chamber (14). The second fan blade (23) is installed in the second chamber (15).

6. The cooking device according to claim 5, characterized in that: The stator (211) is mounted on the fixing bracket (30) via fasteners, and the fan assembly (20) further comprises a shock-absorbing pad (24), wherein the shock-absorbing pad (24) is arranged between the stator (211) and the fixing bracket (30).

7. The cooking device according to claim 6, characterized in that: The fixing bracket (30) is provided with a fixing groove (31), and the shock-absorbing pad (24) is at least partially accommodated in the fixing groove (31).

8. The cooking device according to claim 7, characterized in that: The shock absorbing pad (24) is provided with a positioning protrusion (241), and the bottom of the fixing groove (31) is provided with a positioning hole (311), and the positioning protrusion (241) cooperates with the positioning hole (311) to limit the installation position of the shock absorbing pad (24) in the fixing groove (31).

9. The cooking device according to claim 1, characterized in that: The second fan blade (23) comprises a second base (231) and a second fan blade (232); the second base (231) is fixedly connected to the motor shaft (213); and the second fan blade (232) is connected to a side of the second base (231) facing the cooking cavity (13).

10. The cooking device according to any one of claims 1 to 9, characterized in that: The cooking appliance is an oven, an air fryer or an integrated stove, and the fan assembly (20) is arranged above or on the side of the cooking cavity (13).

Images