A cooking appliance

Abstract

The application discloses a cooking utensil. The cooking utensil comprises a metal shell, the metal shell comprises a first metal sheet, two ends of the first metal sheet along a length are connected so that the first metal sheet encloses a ring shape, the first metal sheet comprises a first part and a second part which are respectively located on two sides of a midline of the length, the first part is connected with a first terminal for grounding, the second part is connected with a second terminal for grounding, and the first terminal and the second terminal are both connected with a grounding wire. Currents selectively flow freely due to inertial properties, and the currents only flow in the direction of small resistance. The connection of the two ends of the first metal sheet forms a larger contact resistance. When the first part and the second part are directly grounded, the grounding current selects the grounding wire (almost no resistance, no heating) and does not pass through the contact resistance, so that the purpose of eliminating safety hazards, improving product quality and increasing product service life is achieved.

Description

Technical Field

[0001] This application relates to the field of cooking utensil technology, and more specifically to a cooking utensil. Background Technology

[0002] In existing cooking appliances, the outer shell is generally made of metal, and this metal shell needs to be grounded to meet safety regulations. When the outer shell is entirely made of metal, the left and right ends of the shell are connected in a ring by riveting iron sheets. When one end of the shell is grounded, the current at the connection point between the two ends is in a state of apparent contact but not actual contact. The actual contact area through which the current passes is significantly reduced, leading to a rapid increase in contact resistance. According to Joule's law, the increase in resistance will significantly increase the heat generated per unit time, thereby causing localized high temperatures at the connection point of the shell. The plastic back cover in contact with this heat is prone to melting due to the high temperature, and consumers may accidentally touch the shell and be burned, which does not meet safety regulations.

[0003] In some existing technologies, the two ends of the broken metal casing are connected using plastic. Plastic is an insulator, which can avoid the resistive connection at both ends of the metal casing, thus avoiding a state of near-contact but not actual contact. However, this process is complex and costly, and the plastic connecting the two ends lacks a metallic texture and has a noticeable color difference from the metal casing, affecting aesthetics.

[0004] Therefore, a cooking appliance is needed to at least partially solve the above problems. Utility Model Content

[0005] The description of this utility model introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This description is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] To at least partially solve the above problems, this application provides a cooking appliance comprising:

[0007] A metal housing, the metal housing including a first metal sheet, the two ends of the first metal sheet along its length being connected to form a ring, the first metal sheet including a first part and a second part located on both sides of the midline of its length, the first part being connected to a first terminal for grounding, and the second part being connected to a second terminal for grounding;

[0008] Both the first terminal and the second terminal are connected to a grounding wire.

[0009] The connection points at both ends of the first metal sheet will form a large contact resistance. When the grounding current flows through the contact resistance, it will generate heat, which can easily lead to safety problems. According to this application, both the first and second parts are directly connected to the grounding conductor. Due to its inertial property, current will only flow in the direction of lower resistance when there is a choice to flow freely, that is, it will choose the path of lower resistance. When both parts are directly grounded, the grounding current chooses the grounding conductor (which has almost no resistance and will not generate heat) instead of passing through the contact resistance, thereby eliminating safety hazards, improving product quality, and increasing product lifespan.

[0010] Optionally, the cooking appliance further includes:

[0011] A power connector for connecting to AC power, the power connector including a power grounding terminal for connecting the ground wire of the AC power;

[0012] Both the first terminal and the second terminal are connected to the power grounding terminal via at least one grounding wire.

[0013] According to this application, the first part and the second part are connected in series to the power supply grounding terminal through a grounding wire to achieve grounding.

[0014] Optionally,

[0015] The first terminal is directly connected to the power ground terminal via a grounding wire; and / or

[0016] The second terminal is directly connected to the power grounding terminal via a grounding wire.

[0017] According to this application, the first terminal and the second terminal can be directly connected in series to the power grounding terminal via a grounding wire.

[0018] Optionally, the cooking appliance further includes a power board for converting the mains voltage into the voltage required by the electrical control components of the cooking appliance. The power board includes a power board grounding terminal, which is connected to the power grounding terminal via a grounding wire.

[0019] The first terminal is connected to the power board ground terminal via at least one grounding wire; and / or, the second terminal is connected to the power board ground terminal via at least one grounding wire.

[0020] According to this application, the power board grounding terminal is connected in series with the power grounding terminal, and the first terminal and the second terminal can be connected in series to the power board grounding terminal and the power grounding terminal in sequence through a grounding wire.

[0021] Optionally,

[0022] The first terminal is directly connected to the power board grounding terminal via a grounding wire; and / or

[0023] The second terminal is directly connected to the grounding terminal of the power board via a grounding wire.

[0024] According to this application, the first terminal and the second terminal can be directly connected in series to the power board grounding terminal via a grounding wire.

[0025] Optionally, the first terminal is directly connected to the power board grounding terminal via a grounding wire, and the second terminal is connected to the first terminal via at least one grounding wire.

[0026] According to this application, if the first terminal is grounded, the second terminal can be grounded by connecting it in series with the first terminal.

[0027] Optionally, the second terminal is directly connected to the first terminal via a grounding wire.

[0028] According to this application, the second terminal can be directly connected in series with the first terminal via a grounding wire.

[0029] Optionally, the second terminal is also directly connected to the power board grounding terminal via a grounding wire.

[0030] According to this application, when the first terminal is grounded, the second terminal is grounded by being connected in series with the first terminal, and the second terminal is also connected in series with the power board grounding terminal. Thus, the first and second terminals are not only directly connected to the power board grounding terminal, but also connected to the power board grounding terminal through each other. Both the first and second terminals have two paths to the power board grounding terminal, providing double protection for the grounding of the first and second parts.

[0031] Optionally, the cooking appliance further includes an additional grounding terminal, which is directly connected to the first terminal via a grounding wire, and the second terminal is directly connected to the additional grounding terminal via a grounding wire.

[0032] According to this application, when the first terminal is grounded, the second terminal can be grounded by connecting it in series with the additional grounding terminal and the first terminal via a grounding wire.

[0033] Optionally, the cooking appliance further includes a top temperature sensor assembly disposed in the lid, wherein the additional grounding terminal is the grounding terminal of the top temperature sensor assembly.

[0034] According to this application, the grounding problem of the top temperature sensor assembly is solved simultaneously with the grounding of the metal housing.

[0035] Optionally, the second terminal is also directly connected to the power board grounding terminal via a grounding wire.

[0036] According to this application, when the first terminal is grounded, the second terminal is grounded by being connected in series with the first terminal, and the second terminal is also connected in series with the power board grounding terminal. Thus, the first and second terminals are not only directly connected to the power board grounding terminal, but also connected to the power board grounding terminal through each other. Both the first and second terminals have two paths to the power board grounding terminal, providing double protection for the grounding of the first and second parts.

[0037] Optionally,

[0038] The first terminal is integrally formed with the first portion; and / or

[0039] The second terminal is integrally formed with the second part.

[0040] According to this application, the construction of the first terminal and the second terminal is simple.

[0041] Optionally,

[0042] The two ends of the first metal sheet are riveted together along its length; or...

[0043] The metal housing also includes a second metal sheet, and both ends of the first metal sheet are riveted to the second metal sheet along its length.

[0044] According to this application, the riveting connection makes the metal housing look aesthetically pleasing.

[0045] Optionally, the metal casing is generally symmetrical from left to right.

[0046] According to this application, the symmetrical design makes the construction and processing of the metal casing easier. Attached Figure Description

[0047] The following drawings, which are incorporated herein by reference and used to understand this application, illustrate embodiments of the application and their descriptions, thereby explaining the principles of the application.

[0048] In the attached image:

[0049] Figure 1 This is a perspective view of a cooking utensil according to a specific embodiment of this application;

[0050] Figure 2 for Figure 1 A top view of the metal casing;

[0051] Figure 3 for Figure 2 An enlarged schematic diagram of part A in the diagram;

[0052] Figure 4 for Figure 1 Rear view of the metal casing;

[0053] Figures 5 to 9 for Figure 1 A schematic diagram illustrating an example of the grounding wire connection for the metal casing of a cooking appliance.

[0054] Explanation of reference numerals in the attached figures:

[0055] 10: Claypot

[0056] 11: Inner pot

[0057] 12: Metal casing

[0058] 13: First metal sheet

[0059] 14: Second metal sheet

[0060] 15: First end of the first metal sheet

[0061] 16: Second end of the first metal sheet

[0062] 17: The first end of the second metal sheet

[0063] 18: Second end of the second metal sheet

[0064] 20: Cover

[0065] 23: Top temperature sensor assembly

[0066] 24: Steam valve

[0067] 31: First terminal

[0068] 32: Second terminal

[0069] 33: Power grounding terminal

[0070] 34: Power board grounding terminal

[0071] 35: Additional grounding terminal

[0072] 40 / 41 / 42 / 43 / 44 / 45 / 46 / 47: Grounding wire

[0073] 51: Part One

[0074] 52: Part Two

[0075] 53: Narrow Slit

[0076] 100: Cooking utensils Detailed Implementation

[0077] The following description provides numerous specific details to offer a more thorough understanding of this application. However, it will be apparent to those skilled in the art that this application can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described to avoid confusion with this application.

[0078] To fully understand this application, a detailed description will be provided below. It is obvious that the implementation of embodiments of this application is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this application are described in detail below; however, other embodiments may also be available in addition to these detailed descriptions.

[0079] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0080] In understanding the scope of this application, the term "comprising" and its derivatives, as used herein, are intended to be open-ended terms that specify the presence of a described feature, element, component, group, whole, and / or step, but do not exclude the presence of other undescribed features, elements, components, groups, wholes, and / or steps. This concept also applies to words with similar meanings, such as the terms "comprising," "having," and their derivatives.

[0081] The term "attached" or "joined" as used herein includes: a construction in which one element is directly fixed to another element by fixing it directly to another element; a construction in which one element is indirectly fixed to another element by fixing it to an intermediate member, which in turn is fixed to another element; and a construction in which one element is integral with another element, that is, one element is substantially part of another element. This definition also applies to words with similar meanings, such as "connect," "joint," "couple," "install," "adhere," "fix," and their derivatives. Finally, degree terms such as "substantially," "approximately," and "approximately" as used herein indicate the amount of deviation from which modifications to the terminology do not significantly alter the final result.

[0082] Ordinal numbers such as “first” and “second” used in this application are merely identifiers and have no other meaning, such as a specific order. Moreover, for example, the term “first component” does not imply the existence of a “second component”, and the term “second component” does not imply the existence of a “first component”.

[0083] It should be noted that the terms "upper," "lower," "front," "back," and "left" used in this article are different.

[0084] The terms "right," "inner," "outer," and similar expressions are for illustrative purposes only and are not intended to be restrictive.

[0085] In this document, terms such as “equal” and “same” are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.

[0086] Unless otherwise stated, the numerical ranges in this document include not only the entire range within its two endpoints, but also the subranges contained therein.

[0087] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art.

[0088] This application provides a cooking appliance. Examples of cooking appliances according to this application include rice cookers, electric pressure cookers, electric slow cookers, soy milk makers, and blenders.

[0089] like Figure 1 As shown, in one specific embodiment, the cooking appliance 100 may include a pot body 10 and a lid 20. Typically, the pot body 10 includes an inner pot 11 for holding food. The space inside the inner pot 11 forms a cooking cavity. The pot body 10 may have a cylindrical (or other shaped) storage section, from which the inner pot 11 can be freely placed or removed for easy cleaning. The inner pot 11 is made of metal and constructed as a rotating body with an opening and an inner cavity formed by the pot wall. The capacity of the inner pot 11 is typically less than 6L; for example, the capacity of the inner pot 11 may be 2L or 4L, etc.

[0090] The lid 20 is pivotally connected to the pot body 10 via a pivot shaft for closing the pot body 10. The lid 20 may be equipped with a top temperature sensor assembly 23 and a steam valve 24. The top temperature sensor assembly 23 is used to sense the temperature of the top of the cooking cavity. The steam valve 24 provides a steam passage. When the lid 20 is closed to the pot body 10, the steam passage is connected to the cooking cavity, and the steam generated during cooking can be released into the environment through the steam passage.

[0091] The cooking appliance 100 also includes a control device (not shown) for controlling the cooking process. This control device may be, for example, a microcontroller unit (MCU).

[0092] In addition, the cooking appliance may also have a heating element (not shown) and a bottom temperature measuring device (not shown). The heating element (e.g., a coil) is typically located at the bottom of the pot body 10 and is used to heat the inner pot 11 under the control of a control device, thereby achieving the cooking function. The bottom temperature measuring device (e.g., a temperature sensor) is also typically located at the bottom of the pot body 10 and is used to sense the bottom temperature of the pot body 10 (or the inner pot 11). The bottom temperature measuring device, the top temperature sensor assembly 23, and the heating element are all electrically connected to the control device of the cooking appliance, thereby enabling the control device to achieve more precise control of the heating element and the like based on temperature information.

[0093] The cooking appliance 100 has a metal shell 12. For example, the metal shell 12 can be the outer shell or part of the outer shell of the pot body 10. Compared with a plastic shell, a metallic shell is more aesthetically pleasing and can enhance the quality of the cooking appliance 100.

[0094] like Figures 1 to 4 As shown, the metal shell 12 includes a first metal sheet 13, the two ends of which (first end 15 and second end 16) are connected along their length, forming a ring. For example, the first end 15 and second end 16 are connected at the rear of the pot body 10. Typically, the pot body 10 has an axis of symmetry SA extending in the front-rear direction, meaning it is generally symmetrical from left to right. Therefore, the metal shell 12 is generally symmetrical from left to right. Consequently, the first metal sheet 13 is also generally symmetrical from left to right. The first metal sheet 13 has a centerline BL along its length, dividing it into two equal parts: a first part 51 and a second part 52 located on either side of the centerline BL. The first part 51 includes the first end 15. The second part 52 includes the second end 16. The centerline BL and the axis of symmetry SA are two intersecting straight lines in the same vertical plane. Part 51 and Part 52 are roughly symmetrical about the axis of symmetry SA. Part 51 and Part 52 are roughly symmetrical about the median BL.

[0095] like Figure 3As shown, the metal casing 12 includes a second metal sheet 14. Both ends of the first metal sheet 13 along its length are connected to the second metal sheet 14, for example, by riveting. Riveting makes the metal casing 12 appear flat. The two ends of the second metal sheet 14 are a first end 17 and a second end 18, respectively. The first end 15 of the first metal sheet is connected to the first end 17 of the second metal sheet. The second end 16 of the first metal sheet is connected to the second end 18 of the second metal sheet. For example, both the first end 15 and the second end 16 of the first metal sheet are bent into hook shapes. The first end 17 and the second end 18 of the second metal sheet are also bent into hook shapes. The hooks of the first end 15 of the first metal sheet and the hooks of the first end 17 of the second metal sheet are hooked together and then riveted. The hooks of the second end 16 of the first metal sheet and the hooks of the second end 18 of the second metal sheet are hooked together and then riveted. The second metal sheet 14 is located inside the first metal sheet 13. Thus, on the rear side of the pot body 10, the first part 51 and the second part 52 of the first metal sheet 13 are close to each other, leaving only a neat narrow slit 53 (see...). Figure 4 The second metal sheet 14 is almost invisible, making the metal casing 12 look aesthetically pleasing.

[0096] In an embodiment not shown, the first end 15 and the second end 16 of the first metal sheet are bent toward each other into a hook shape, the two hooks are hooked together, and then riveted.

[0097] Understandably, the riveting process can ensure an aesthetically pleasing appearance, but it creates a large contact resistance at the connection between the first end 15 and the second end 16 of the first metal sheet. When the grounding current flows through the contact resistance, it will generate heat, which can easily lead to safety issues.

[0098] To ensure safer grounding of the casing, the first part 51 is connected to a first terminal 31 for grounding, and the second part 52 is connected to a second terminal 32 for grounding. The first terminal 31 and the second terminal 32 are used to connect to a grounding conductor. In this application, the grounding conductor refers to a grounding wire that conforms to safety standards, i.e., a grounding wire connected to the mains ground wire (e.g., a grounding wire with a yellow-green insulation). Therefore, both the first part 51 and the second part 52 are directly connected to the grounding conductor. Due to its inertial properties, current will only flow in the direction of lower resistance when there is selective free flow, i.e., it will choose the path of lower resistance. When both parts are directly grounded, the grounding current flows through the grounding conductor (which has almost no resistance and does not generate heat) rather than through the contact resistance at the crimping point, avoiding the resistance-induced heating caused by the near-contact / non-contact state at the crimping point, thereby eliminating safety hazards, improving product quality, and increasing product lifespan.

[0099] The first terminal 31 can be integrally formed with the first portion 51. The second terminal 32 can be integrally formed with the second portion 52. For example, a portion of the metal sheet can extend directly from the first metal sheet 13 as a grounding terminal. The first terminal 31 and the second terminal 32 are, for example, generally symmetrical about the axis of symmetry SA. The first terminal 31 and the second terminal 32 are, for example, generally symmetrical about the neutral line BL. The distance between the first terminal 31 and the first end 15 of the first metal sheet is less than the distance to the neutral line BL. The distance between the second terminal 32 and the second end 16 of the first metal sheet is less than the distance to the neutral line BL. The first terminal 31 and the second terminal 32 are, for example, located on the rear side of the body 10.

[0100] The cooking appliance 100 has a power connector for connection to mains electricity, such as a connector for plugging in a power cord. Figures 5 to 9 As shown, the power connector includes a power grounding terminal 33 for connecting to the ground wire of the mains power. The first terminal 31 and the second terminal 32 are both connected to the power grounding terminal via at least one grounding wire 40. Thus, the first part 51 and the second part 52 of the metal housing 12 are both connected in series to the power grounding terminal 33 via the grounding wire 40, achieving grounding.

[0101] like Figure 5 As shown, the second terminal 32 can be directly connected to the power ground terminal 33 via a grounding wire 41. Of course, the first terminal 31 can also be directly connected to the power ground terminal 33 via a grounding wire 40.

[0102] The cooking appliance 100 also includes a power board, which converts the mains voltage to the voltage required by the electrical control components of the cooking appliance 100, such as converting 220V AC mains voltage to ±18V, ±12V, or ±5V DC voltage. The power board includes a power board grounding terminal 34, which is directly connected to a power grounding terminal 33 via a grounding wire 42. A first terminal 31 can be connected to the power board grounding terminal 34 via at least one grounding wire 40, thereby grounding a first portion 51 connected in series with the power board grounding terminal 34 via the grounding wire 40, and then connected in series with the power grounding terminal 33 via the grounding wire 42. Similarly, a second terminal 32 can also be connected to the power board grounding terminal 34 via at least one grounding wire 40, thereby grounding a second portion 52 connected in series with the power board grounding terminal 34 via the grounding wire 40, and then connected in series with the power grounding terminal 33 via the grounding wire 42.

[0103] For example, the first terminal 31 can be directly connected to the power board grounding terminal 34 via a grounding wire 43. The second terminal 32 can also be directly connected to the power board grounding terminal 34 via a grounding wire 40.

[0104] like Figure 6As shown, the first terminal 31 is directly connected to the power board grounding terminal 34 via a grounding wire 43, and the second terminal 32 is connected to the first terminal 31 via at least one grounding wire 40. Thus, the second terminal 32 is connected in series to the first terminal 31 via the grounding wire 40, and then in series with the power board grounding terminal 34 and the power grounding terminal 33 via the grounding wire 40, thereby grounding the second part 52.

[0105] For example, the cooking appliance 100 also includes an additional grounding terminal 35, which is directly connected to the first terminal 31 via a grounding wire 44, and the second terminal 32 is directly connected to the additional grounding terminal 35 via a grounding wire 45. Thus, the second terminal 32 is connected in series with the additional grounding terminal 35, the first terminal 31, the power board grounding terminal 34, and the power grounding terminal 33 via the grounding wire 40, thereby grounding the second part 52.

[0106] The additional grounding terminal 35 may be, for example, the grounding terminal of the top temperature sensor assembly 23.

[0107] like Figure 7 As shown, compared to Figure 6 In this implementation, in addition to the second terminal 32 being connected in series to the power supply ground terminal 33 via multiple grounding wires 40, the second terminal 32 can also be directly connected to the power board ground terminal 34 via a further grounding wire 46. Thus, the first terminal 31 gains an additional path to the power board ground terminal 34 via an additional grounding terminal 35 and the second terminal 32. Both the first terminal 31 and the second terminal 32 have two paths to the power board ground terminal 34, providing double protection for the grounding of the first part 51 and the second part 52. Simultaneously, the top temperature sensor assembly 23 also has two grounding paths, one via the first terminal 31 and the other via the second terminal 32, achieving double protection for grounding.

[0108] like Figure 8 As shown, the first terminal 31 is directly connected to the power board grounding terminal 34 via a grounding wire 43, and the second terminal 32 is directly connected to the first terminal 31 via a grounding wire 47. Thus, the second terminal 32 is connected in series with the first terminal 31, the power board grounding terminal 34, and the power grounding terminal 33 via the grounding wire 40, thereby grounding the second part 52.

[0109] like Figure 9 As shown, compared to Figure 8 In this implementation, in addition to the second terminal 32 being connected in series to the power ground terminal 33 via multiple grounding wires 40, the second terminal 32 can also be directly connected to the power board ground terminal 34 via another grounding wire 46. This provides double protection for the grounding of the first part 51 and the second part 52.

[0110] The grounding terminal of the top temperature sensor assembly 23 can be connected to at least one of the first terminal 31 and the second terminal 32 via a grounding wire 40, thereby grounding the top temperature sensor assembly 23. In other words, grounding the metal housing 12 simultaneously solves the grounding problem of the top temperature sensor assembly 23. The grounding terminal of the top temperature sensor assembly 23 can be directly connected to the power board grounding terminal 34 or the power grounding terminal 33 via a grounding wire 40.

[0111] Figures 5 to 9 In the diagram, the connection between the first terminal 31 and the second terminal 32 is indicated by a dashed line. This dashed line represents a near-contact, non-contact connection path formed by the riveting connection between the two ends of the first metal sheet 13. This path has a large contact resistance, which is formed between the first terminal 31 and the second terminal 32. It can be seen that when both the first terminal 31 and the second terminal 32 are grounded through the grounding wire 40, this contact resistance is short-circuited by the grounding wire 40, resulting in almost no current and no heat generation at the contact resistance. When both the first part 51 and the second part 52 are directly grounded through the grounding wire 40, compared to when only one part 51 or the second part 52 is directly connected to the grounding wire, the temperature at the connection between the first end 15 and the second end 16 of the first metal sheet can be reduced by approximately 100°C.

[0112] The orientations mentioned in this application are all relative to the user when the cooking appliance 100 is in an upright position.

[0113] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this application. Features described in one embodiment may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0114] This application has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this application to the described embodiments. Furthermore, those skilled in the art will understand that this application is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this application, all of which fall within the scope of protection claimed in this application.

Claims

1. A cooking appliance characterized by, include: A metal housing, the metal housing including a first metal sheet, the two ends of the first metal sheet along its length being connected to form a ring, the first metal sheet including a first part and a second part located on both sides of the midline of its length, the first part being connected to a first terminal for grounding, and the second part being connected to a second terminal for grounding; Both the first terminal and the second terminal are connected to a grounding wire.

2. The cooking utensil according to claim 1, characterized in that, The cooking appliance also includes: A power connector for connecting to AC power, the power connector including a power grounding terminal for connecting the ground wire of the AC power; Both the first terminal and the second terminal are connected to the power grounding terminal via at least one grounding wire.

3. The cooking utensil according to claim 2, characterized in that, The first terminal is directly connected to the power ground terminal via a grounding wire; and / or The second terminal is directly connected to the power grounding terminal via a grounding wire.

4. The cooking utensil according to claim 2, characterized in that, The cooking appliance also includes a power board for converting the mains voltage into the voltage required by the electrical control components of the cooking appliance. The power board includes a power board grounding terminal, which is connected to the power grounding terminal via a grounding wire. The first terminal is connected to the power board ground terminal via at least one grounding wire; and / or, the second terminal is connected to the power board ground terminal via at least one grounding wire.

5. The cooking utensil according to claim 4, characterized in that, The first terminal is directly connected to the power board grounding terminal via a grounding wire; and / or The second terminal is directly connected to the grounding terminal of the power board via a grounding wire.

6. The cooking utensil according to claim 4, characterized in that, The first terminal is directly connected to the power board grounding terminal via a grounding wire, and the second terminal is connected to the first terminal via at least one grounding wire.

7. The cooking utensil according to claim 6, characterized in that, The second terminal is directly connected to the first terminal via a grounding wire.

8. The cooking utensil according to claim 7, characterized in that, The second terminal is also directly connected to the power board grounding terminal via a grounding wire.

9. The cooking utensil according to claim 6, characterized in that, The cooking appliance also includes an additional grounding terminal, which is directly connected to the first terminal via a grounding wire, and the second terminal is directly connected to the additional grounding terminal via a grounding wire.

10. The cooking utensil according to claim 9, characterized in that, The cooking appliance also includes a top temperature sensor assembly disposed in the lid, and the additional grounding terminal is the grounding terminal of the top temperature sensor assembly.

11. The cooking utensil according to claim 10, characterized in that, The second terminal is also directly connected to the power board grounding terminal via a grounding wire.

12. The cooking utensil according to any one of claims 1 to 11, characterized in that, The first terminal is integrally formed with the first portion; and / or The second terminal is integrally formed with the second part.

13. The cooking utensil according to any one of claims 1 to 11, characterized in that, The two ends of the first metal sheet are riveted together along its length; or, The metal housing also includes a second metal sheet, and both ends of the first metal sheet are riveted to the second metal sheet along its length.

14. The cooking utensil according to any one of claims 1 to 11, characterized in that, The metal casing is generally symmetrical from left to right.

Images