A spool assembly and cooking apparatus

Abstract

The application discloses a wire coil assembly and a cooking device, which mainly realizes heating of a pot bottom and a bottom wall at the same time through setting of a bottom wire coil and a side wire coil, makes the pot body heat evenly, realizes dispersed heating area under the condition of unchanged power, and makes food material heat more evenly. The main technical scheme of the application is as follows: a wire coil assembly is used for heating a pot body in a cooking device, the pot body is used for rotating around a central rotating shaft of the pot body, the pot body comprises a pot bottom, an opening and a bottom wall, the pot bottom is opposite to the opening, the bottom wall is an area where food material is located when the pot body is used for cooking, the wire coil assembly comprises a bottom wire coil and a side wire coil; the bottom wire coil is opposite to the pot bottom; the side wire coil is opposite to the bottom wall, the side wire coil is connected with the bottom wire coil; the bottom wire coil and the side wire coil are respectively used for heating the pot body by the pot bottom and the bottom wall. The application is mainly used for pot body heating.

Description

Technical Field

[0001] This invention relates to the field of rotary drum technology, and more particularly to a coil assembly and cooking equipment. Background Technology

[0002] With the advancement of technology and the improvement of living standards, people have increasingly higher requirements for the quality of their daily diet. Various cooking utensils have emerged, among which the rotary drum cooker, with its labor-saving features and excellent cooking performance, is increasingly favored by cooking enthusiasts. The rotary drum cooker mainly consists of a pot body, a power drive component, and a heating element. The power drive component drives the pot body to rotate, thus turning the food inside. The heating element heats the pot body from the bottom wall, effectively heating the food.

[0003] Most existing rotary drum cookers use a single heating element. For example, application CN111387794A discloses an automatic cooking machine that includes a rotary drum cooker installed inside the outer shell and a single heating element. When this heating method is working, the heat is concentrated on the bottom wall area corresponding to the heating element. The high-temperature zone is narrow and the heat is concentrated, resulting in a low temperature at the bottom of the pot, which leads to insufficient wok hei (wok aroma) and affects the taste of the dishes during cooking. Summary of the Invention

[0004] In view of this, embodiments of the present invention provide a coil assembly and a cooking device, which mainly achieves simultaneous heating of the bottom and bottom wall of the pot by setting a bottom coil and a side coil, so that the pot body is heated evenly, and the heating area is dispersed while the power remains unchanged, so that the food is heated more evenly.

[0005] To achieve the above objectives, the present invention mainly provides the following technical solutions:

[0006] On one hand, embodiments of the present invention provide a coil assembly for heating a pot body in a cooking device. The pot body is used to rotate around a central axis. The pot body includes a bottom, an opening, and a bottom wall. The bottom and the opening are opposite each other, and the bottom wall is the area where the food is located when the pot body is cooking. The coil assembly includes:

[0007] Bottom coil and side coil;

[0008] The bottom coil is opposite to the bottom of the pot;

[0009] The side reels are opposite to the bottom wall, and the side reels are connected to the bottom reels.

[0010] The bottom coil and the side coil are used to heat the pot body from the bottom and bottom wall, respectively.

[0011] The bottom coil includes a bottom coil frame and a bottom coil, with the bottom coil wound around the bottom coil frame;

[0012] The density of the bottom coils between the connection point of the bottom coil and the side coil and the center of the bottom coil of the bottom coil is greater than the density of the bottom coils between the end of the bottom coil away from the side coil and the center of the bottom coil of the bottom coil.

[0013] The bottom reel frame includes a first connecting edge and a first top edge. The distance between the first connecting edge and the center of the reel is less than the distance between the first top edge and the center of the reel. The bottom reel and the side reel are connected by the first connecting edge.

[0014] The center of the bottom coil is located on the central pivot.

[0015] The bottom spool frame includes at least two support ribs extending from the center of the spool to the edge of the spool. The support ribs include a first support rib closer to the side spool and a second support rib further away from the side spool.

[0016] The first support rib and the second support rib are respectively provided with mounting grooves. The number of mounting grooves on the first support rib is less than or equal to the number of mounting grooves on the second support rib. The mounting grooves on the first support rib are used to embed at least two turns of bottom coil, and the mounting grooves on the second support rib are used to embed a single turn of bottom coil.

[0017] Alternatively, the number of mounting slots for the first support rib is greater than the number of mounting slots for the second support rib, and the mounting slots are used to embed a single-turn bottom coil.

[0018] The side coil includes a side coil frame and a side coil, with the side coil wound around the side coil frame;

[0019] The density of the side coils between the connection point of the side reel to the bottom reel and the center of the reel of the side reel is greater than the density of the side coils between the end of the side reel furthest from the bottom reel and the center of the reel of the side reel.

[0020] The side reel frame includes a second connecting edge and a second top edge. The distance between the second connecting edge and the center of the reel is less than the distance between the second top edge and the center of the reel. The bottom reel and the side reel are connected by the second connecting edge.

[0021] The side spool frame includes at least two support ribs extending from the center of the spool to the edge of the spool. The support ribs include a third support rib near the bottom spool and a fourth support rib away from the bottom spool.

[0022] The third and fourth support ribs are respectively provided with mounting grooves. The number of mounting grooves on the third support rib is less than or equal to the number of mounting grooves on the fourth support rib. The mounting grooves on the third support rib are used to embed at least two turns of the bottom coil, and the mounting grooves on the fourth support rib are used to embed a single turn of the bottom coil.

[0023] Alternatively, the number of mounting slots for the third support rib is greater than the number of mounting slots for the fourth support rib.

[0024] The coil assembly also includes a magnetic strip; the magnetic strip extends from the bottom coil through the connection point between the bottom coil and the side coil to the side coil, and the magnetic strip is disposed on the side of the coil assembly opposite to the pot body and / or the side opposite to the pot body.

[0025] Magnetic strips are used to confine the electromagnetic field of the bottom coil and / or the side coils.

[0026] The bottom coil includes a bottom coil frame and a bottom coil, with the bottom coil spirally wound around the bottom coil frame. The side coil includes a side coil frame and a side coil, with the side coil spirally wound around the side coil frame.

[0027] The side coil and the bottom coil have the same routing direction near the connection between the bottom tray and the side tray;

[0028] The routing direction is in the direction of current flow;

[0029] The side coil and the bottom coil can be either a single coil or separate coils;

[0030] The bottom tray and the side tray can be either separate or integrally molded.

[0031] The bottom coil has a first connecting edge along its edge, and the side coil has a second connecting edge along its edge.

[0032] The outline of the first connecting edge matches the outline of the second connecting edge, and the first connecting edge abuts against the second connecting edge.

[0033] Both the second connecting edge and the first connecting edge are arc-shaped areas;

[0034] Alternatively, at least one side of the first connecting edge is provided with a corner bead, which extends toward the side coil and fits against the edge of the side coil.

[0035] Alternatively, at least one side of the second connecting edge is provided with a corner bead, which extends toward the bottom coil and fits against the edge of the bottom coil.

[0036] The bottom coil is provided with a first connecting component, and the side coil is provided with a second connecting component. The first connecting component is used to cooperate with the second connecting component to connect the bottom coil and the side coil.

[0037] Among them, the extension of the side plate in the circumferential direction of the pot body is greater than the extension of the side plate in the direction from the opening of the pot body to the bottom of the pot body.

[0038] The number of side reels is at least two, and the at least two side reels are respectively connected to the bottom reel, and the side reels are located on different sides of the bottom reel.

[0039] On the other hand, the present invention also provides a cooking device, including the coil assembly of any of the foregoing, as well as a pot body, a shell, a coil support and a power assembly;

[0040] The power unit is connected to the shell and the pot body respectively, and the power unit is used to drive the pot body to rotate around the central axis.

[0041] The bottom and side reels are connected to the housing via reel brackets.

[0042] This invention discloses a coil assembly and cooking device that, through the use of bottom and side coils, simultaneously heats the bottom and bottom wall of the pot, resulting in uniform heating of the pot body. This disperses the heating area while maintaining the same power, leading to more even heating of the food. In existing technologies, the heating element of most rotary drum cookers is a single coil. When this heating method is in operation, heat is concentrated on the bottom wall area corresponding to the coil, resulting in a narrow high-temperature zone and concentrated heat, while the bottom temperature remains low, leading to insufficient wok hei (the smoky aroma) and affecting the taste of the dishes. Compared to existing technologies, this application, by using bottom and side coils, achieves simultaneous heating of the pot body from the bottom to the bottom wall. With the same heating power, the heating area is larger, resulting in more even heating of the food and avoiding the problems of concentrated heat causing burnt food or uneven cooking. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the structure of a coil assembly and a pot body provided in an embodiment of the present invention;

[0044] Figure 2 This is a schematic diagram of the structure of a first type of coil assembly provided in an embodiment of the present invention from a first perspective;

[0045] Figure 3 This is a schematic diagram of the structure of the first type of coil assembly provided in an embodiment of the present invention from a second perspective;

[0046] Figure 4 This is a schematic diagram of the structure of the first type of coil assembly provided in an embodiment of the present invention from a third perspective;

[0047] Figure 5 for Figure 4 A schematic diagram of the bottom coil in the coil assembly shown in the diagram, with respect to direction A.

[0048] Figure 6 for Figure 4 A schematic diagram of the side coil in the coil assembly shown in the B direction;

[0049] Figure 7 This is a schematic diagram of the structure of the second type of coil assembly provided in an embodiment of the present invention from a first perspective;

[0050] Figure 8 This is a schematic diagram of the structure of the second type of coil assembly provided in an embodiment of the present invention from a second perspective;

[0051] Figure 9 This is a schematic diagram of the structure of the second type of coil assembly provided in an embodiment of the present invention from a third perspective;

[0052] Figure 10 for Figure 9 A schematic diagram of the bottom coil in the coil assembly shown in the C direction;

[0053] Figure 11 for Figure 9 A schematic diagram of the side coil in the coil assembly shown in the D direction;

[0054] Figure 12 This is a schematic diagram of the structure of the third type of coil assembly provided in the embodiments of the present invention from a first perspective;

[0055] Figure 13 This is a structural schematic diagram of the third type of coil assembly provided in an embodiment of the present invention from a second perspective;

[0056] Figure 14 This is a schematic diagram of the third type of coil assembly provided in an embodiment of the present invention from a third-view perspective;

[0057] Figure 15 for Figure 14 A schematic diagram of the bottom coil in the coil assembly shown in the E direction;

[0058] Figure 16 for Figure 14 A schematic diagram of the side coil in the coil assembly shown in the F direction;

[0059] Figure 17 A schematic diagram of the wiring of a side coil and a bottom coil of a coil assembly provided in an embodiment of the present invention;

[0060] Figure 18 A schematic diagram of the wiring of another side coil and bottom coil of a coil assembly provided in an embodiment of the present invention;

[0061] Figure 19 A schematic diagram of a coil assembly in a connected state provided in an embodiment of the present invention;

[0062] Figure 20 This is a schematic diagram of a coil assembly in a split state, provided by an embodiment of the present invention.

[0063] Figure 21 This is a schematic diagram of another coil assembly and pot body provided in an embodiment of the present invention. Detailed Implementation

[0064] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the following detailed description of the specific implementation, structure, features and effects of the coil assembly and cooking device proposed according to the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0065] like Figure 1 As shown, this embodiment of the invention provides a coil assembly for heating a pot (100) in a cooking device. The pot (100) is used to rotate around a central axis. The pot (100) includes a bottom, an opening, and a bottom wall. The bottom is opposite to the opening, and the bottom wall is the area where the food is located when the pot (100) is cooking. The coil assembly includes:

[0066] Bottom coil (200) and side coil (300);

[0067] The bottom coil (200) is opposite to the bottom of the pot;

[0068] The side reel (300) is opposite to the bottom wall, and the side reel (300) is connected to the bottom reel (200);

[0069] The bottom coil (200) and the side coil (300) are used to heat the pot body (100) from the bottom and bottom wall, respectively.

[0070] The pot body (100) includes an opening, which is typically circular. The pot body (100) also includes an outer wall extending from the opening to one side. The outer wall extends away from the opening and gradually converges to form a cavity structure with an opening. The cross-section of the pot body (100) along its central axis is typically approximately semi-elliptical. The outer wall of the pot body (100) is divided into side walls, a bottom wall, and a bottom opening. It can be understood that the side walls, bottom wall, and bottom are simply regional divisions on a single outer wall. The bottom is opposite the opening, and its area is typically smaller than the opening. The bottom is typically approximately planar, or includes an area that is approximately planar. The side walls connect to the opening and are typically cylindrical, with a constant or minimally varying inner diameter. The bottom wall is the area connecting the bottom and side walls, and is an outwardly convex arc-shaped cone. The pot body (100) is tilted under the support of a power assembly, and the opening has a certain angle with the horizontal direction, such as 60 degrees. When the pot (100) is stationary, the food will be located in the area of ​​the bottom wall, or in other words, the center of the food pile will be located in the area of ​​the bottom wall. When the power unit drives the pot (100) to rotate around the central axis, the food will slide on the inner wall of the pot (100) under the action of gravity, and at the same time tumble and scatter. The food will also tend to slide towards the bottom of the pot under the action of centrifugal force. By setting a bottom coil (200) and a side coil (300), with the bottom coil (200) facing the bottom of the pot and the side coil (300) facing the bottom wall, when the pot body (100) rotates and stirs, the bottom coil (200) heats the bottom of the pot, and the food that slides to the bottom of the pot will be heated by the bottom of the pot. The side coil (300) heats the bottom wall, and the food located on the bottom wall will be heated by the bottom wall. This ensures that during the stir-frying process, the food can be heated in all areas of the inner wall of the pot body (100) that it comes into contact with. Increasing the heating area makes the heat in the inner cavity of the pot body (100) higher, avoiding the problem of slow cooking speed caused by the bottom of the pot not being able to heat the food, and the problem of burnt food caused by concentrated heat.

[0071] The projections of the bottom coil (200) and the side coil (300) perpendicular to the coil direction can be circular or elliptical. The bottom coil (200) and the side coil (300) can be arc-shaped coils that fit the outer contour of the pot body (100), or the bottom coil (200) and the side coil (300) can be flat coils, which can be set according to the shape of the pot body. For example, if the bottom of the pot body (100) is flat, the bottom coil (200) is a flat coil, and the side coil (300) is an arc-shaped coil that fits the outer contour of the bottom wall. The distance between the surface contour of the side coil (300) on the side opposite to the bottom wall and the bottom wall is uniform, so that the side coil (300) is heated evenly.

[0072] The bottom plate frame (210) and the side plate frame (310) can be separate structures that can be connected to each other or set close to or against each other. Alternatively, the bottom plate frame (210) and the side plate frame (310) can be integrally formed structures. The integral forming makes the relative position of the bottom plate frame (210) and the side plate frame (310) more stable and easy to install.

[0073] This invention discloses a coil assembly and cooking device that, through the use of bottom and side coils, simultaneously heats the bottom and bottom wall of the pot, resulting in uniform heating of the pot body. This disperses the heating area while maintaining the same power, leading to more even heating of the food. In existing technologies, the heating element of most rotary drum cookers is a single coil. When this heating method is in operation, heat is concentrated on the bottom wall area corresponding to the coil, resulting in a narrow high-temperature zone and concentrated heat, while the bottom temperature remains low, leading to insufficient wok hei (the smoky aroma) and affecting the taste of the dishes. Compared to existing technologies, this application, by using bottom and side coils, achieves simultaneous heating of the pot body from the bottom to the bottom wall. With the same heating power, the heating area is larger, resulting in more even heating of the food and avoiding the problems of concentrated heat causing burnt food or uneven cooking.

[0074] In one embodiment, the bottom coil (200) includes a bottom coil frame (210) and a bottom coil (220), the bottom coil (220) being spirally wound around the bottom coil frame (210). The density of the bottom coil (220) between the connection position of the bottom coil frame (210) with the side coil (300) and the center of the coil of the bottom coil frame (210) is greater than the density of the bottom coil (220) between the end of the bottom coil frame (210) away from the side coil (300) and the center of the coil of the bottom coil frame (210).

[0075] To avoid insufficient heat at the connection point between the bottom coil (200) and the side coil (300) when using bottom coil (200) and side coil (300) for heating, the bottom coil (220) is made to have a denser coil closer to the side coil (300) and a sparser coil further away from the side coil (300), thereby increasing the heating efficiency at the connection point between the bottom coil (200) and the side coil (300).

[0076] There are several ways to make the coil lines dense or sparse. The following are some specific implementation methods as examples:

[0077] Firstly, such as Figure 2-5As shown, the bottom reel frame (210) has a first connecting edge (201) and a first top edge (202). The distance between the first connecting edge (201) and the center of the reel is less than the distance between the first top edge (202) and the center of the reel. The bottom reel (200) and the side reels (300) are connected by the first connecting edge (201). The center of the bottom reel (200) is located on the central pivot.

[0078] Taking the bottom coil (200) and the side coil (300) as circular coils as an example, the center A of the bottom coil (200) is located on the central axis of rotation, or in other words, the position point of the bottom coil (200) opposite to the central axis of rotation is the center A of the coil. Because the distance between the first connecting edge (201) and the center A of the coil is less than the distance between the first top edge (202) and the center of the coil, the spacing between two adjacent turns of the bottom coil (220) between the first connecting edge (201) and the center of the coil is less than the spacing between two adjacent turns of the bottom coil (220) between the first top edge (202) and the center A of the coil, the heating efficiency of the bottom coil (200) from the center A of the coil to the first connecting edge (201) is higher than the heating efficiency from the center A of the coil to the first top edge (202). The high heating efficiency at the first connecting edge (201) compensates for the insufficient heating at the connection position between the bottom coil (200) and the side coil (300), making the heating between the bottom coil (200) and the side coil (300) uniform.

[0079] In addition, the distance between the first top edge (202) and the center A of the coil is greater than the distance between the first connecting edge (201) and the center A of the coil, so that the bottom coil (200) can cover the pot body (100) in a larger area at the end away from the side coil (300), which further compensates for the low temperature problem at the connection position of the bottom coil (200) and the side coil (300).

[0080] The first connecting edge (201) is a section of the edge of the bottom coil (200) used to connect to the side coil (300). It can be understood that the first connecting edge (201) is a section that abuts against or is close to the side coil (300). The first top edge (202) is another section of the bottom coil (200) that is different from the first connecting edge (201).

[0081] Secondly, such as Figure 5As shown, the bottom spool frame (210) includes at least two support ribs extending from the center of the spool to the edge of the spool. The support ribs include a first support rib (211) near the side spool (300) and a second support rib (212) away from the side spool (300). The first support rib (211) and the second support rib (212) are respectively provided with mounting grooves (213). The number of mounting grooves (213) of the first support rib (211) is less than or equal to the number of mounting grooves (213) of the second support rib (212). The mounting grooves (213) of the first support rib (211) are used to embed at least two turns of bottom coil (220), and the mounting grooves (213) of the second support rib (212) are used to embed a single turn of bottom coil (220). Alternatively, the number of mounting slots (213) of the first support rib (211) is greater than the number of mounting slots (213) of the second support rib (212), and the mounting slots (213) are used to embed a single-turn bottom coil (220).

[0082] The bottom tray frame (210) may include a central opening through which the rotating shaft of the power assembly passes, the rotating shaft being connected to the center of the pot bottom. The aforementioned coil center A is typically located within the central opening, and is a virtual position. Specifically, there may be eight support ribs, radiating outwards from the coil center to the edge, evenly distributed around the coil center A, or denser near the first connecting edge (201) to increase the strength of the bottom tray frame (210). Figure 5As shown, four mounting slots (213) are provided on the first support rib (211) opposite to the first connecting edge (201) and on the two support ribs adjacent to the first support rib (211). Nine mounting slots (213) are provided on the second support rib (212) opposite to the first top edge (202) and on the other four support ribs on both sides of the second support rib (212). When the bottom coil (220) is wound, two or more turns are embedded in one mounting slot (213) on the first support rib (211) and on the two support ribs adjacent to the first support rib (211), while one turn is embedded in the mounting slot (213) on the other support ribs. This makes the heat generation of the bottom coil (220) on the first support rib (211) and the two support ribs adjacent to the first support rib (211) more concentrated. The mounting slots (213) serve to fix the bottom coil (220) and prevent the bottom coil (220) from falling off or moving. In some other embodiments, the number of mounting slots (213) on the first support rib (211) and the second support rib (212) can also be the same. By increasing the number of winding turns in the mounting slots (213) on the first support rib (211) in a serpentine manner near the first support rib (211), the density of the bottom coil (220) at the first support rib (211) can be increased. Alternatively, more mounting slots (213) can be provided on the first support rib (211), and the bottom coil (220) can still be wound in a serpentine manner near the first support rib (211), with a single turn of the bottom coil (220) embedded in each mounting slot (213), to avoid the bottom coil (220) from being stacked, causing short circuits or easy slippage.

[0083] In one embodiment, the side coil (300) includes a side coil frame (310) and a side coil (320), the side coil (320) being spirally wound around the side coil frame (310). The density of the side coil (320) between the connection position of the side coil frame (310) with the bottom coil (200) and the center of the coil of the side coil frame (310) is greater than the density of the side coil (320) between the end of the side coil frame (310) away from the bottom coil (200) and the center of the coil of the side coil frame (310).

[0084] Similar to the principle of the bottom coil (200), in order to avoid insufficient heat at the connection point between the bottom coil (200) and the side coil (300) when heating is used, the side coil (320) is made to have a denser coil closer to the bottom coil (200) and a sparser coil further away from the bottom coil (200), thereby increasing the heating efficiency at the connection point between the bottom coil (200) and the side coil (300).

[0085] The way the lines on the side plate (300) are made dense or sparse is similar to that on the bottom plate (200). The principle and effect will not be elaborated here. The specific structure is as follows:

[0086] Firstly, the edge of the side tray (310) includes a second connecting edge (301) and a second top edge (302). The distance between the second connecting edge (301) and the center of the spool is less than the distance between the second top edge (302) and the center of the spool. The bottom spool (200) and the side spool (300) are connected by the second connecting edge (301).

[0087] Secondly, the side spool frame (310) includes at least two support ribs extending from the center of the spool to the edge of the spool. The support ribs include a third support rib (311) near the bottom spool (200) and a fourth support rib (312) away from the bottom spool (200). The third support rib (311) and the fourth support rib (312) are respectively provided with mounting grooves (213). The number of mounting grooves (213) of the third support rib (311) is less than or equal to the number of mounting grooves (213) of the fourth support rib (312). The mounting grooves (213) of the third support rib (311) are used to embed at least two turns of bottom coil (220), and the mounting grooves (213) of the fourth support rib (312) are used to embed a single turn of bottom coil (220). Alternatively, the number of mounting grooves (213) of the third support rib (311) is greater than the number of mounting grooves (213) of the fourth support rib (312). Figure 6 The diagram is only a schematic diagram of the positions of the third support rib (311) and the fourth support rib (312), as well as the second connecting edge (301) and the second top edge (302), and is not a schematic diagram of the specific structure mentioned above.

[0088] It is understandable that the heating efficiency at the connection point between the side coil (320) on the side coil (300) and the bottom coil (220) on the bottom coil (200) can be increased by simultaneously changing the density of the side coil (300) and the bottom coil (200), or one of the densities of the side coil (320) on the side coil (300) and the bottom coil (220) on the bottom coil (200) can be changed.

[0089] In one embodiment, the coil assembly further includes a magnetic strip (400). The magnetic strip (400) extends from the bottom coil (200) through the connection point between the bottom coil (200) and the side coil (300) to the side coil (300), and is disposed on one side of the coil assembly opposite to the pot body (100) and / or the side opposite to the pot body (100). The magnetic strip (400) is used to confine the electromagnetic field of the bottom coil (220) and / or the side coil (300).

[0090] The magnetic strip (400) can be a single magnetic strip (400) or two magnetic strips (400). Let's take two magnetic strips (400) as an example. Figure 3 and Figure 5-6 As shown, the side coil (300) also includes multiple support ribs, among which is a third support rib (311) opposite to the first support rib (211). Each support rib is provided with a magnetic strip groove with opposite mounting slots (213). One of the two magnetic strips (400) is laid in the magnetic strip groove of the first support rib (211) and the third support rib (311), and the magnetic strip (400) is a single magnetic strip (400), starting from the end of the first support rib (211) opposite to the third support rib (311) and extending to the end of the third support rib (311) opposite to the first support rib (211). Similarly, the other magnetic strip (400) is laid on the side of the first support rib (211) and the third support rib (311) where the mounting slots (213) are provided. Two magnetic strips (400) constrain the electromagnetic fields of the bottom coil (220) and the side coil (320) of the side coil (300) at the connection point of the bottom coil (200) and the side coil (300), making the electromagnetic field more concentrated and the heating efficiency of the connection point of the bottom coil (200) and the side coil (300) of the pot body (100) higher, thereby avoiding the low temperature zone between the bottom coil (200) and the side coil (300).

[0091] In some implementations, such as Figure 3 As shown, among the multiple support ribs of the side coil (300), a magnetic strip (400) with a back-to-back mounting groove (213) is provided on any one of the support ribs other than the first support rib (211). Among the multiple support ribs of the bottom coil (210), a magnetic strip (400) with a back-to-back mounting groove (213) is provided on any one of the support ribs other than the third support rib (311).

[0092] In one implementation, such as Figure 17-18 As shown, the bottom coil (200) includes a bottom coil frame (210) and a bottom coil (220), with the bottom coil (220) spirally wound around the bottom coil frame (210). The side coil (300) includes a side coil frame (310) and a side coil (320), with the side coil (320) spirally wound around the side coil frame (310). The routing direction of the side coil (320) near the connection point between the bottom coil (200) and the side coil (300) is the same as the routing direction of the bottom coil (220) near the connection point between the bottom coil (200) and the side coil (300). The routing direction is the direction of current flow.

[0093] The side coil (320) and the bottom coil (220) can be a single coil, such as Figure 17As shown, this is a coil. Region B corresponds to the connection point of the bottom coil (200) and the side coil (300). The two ends of the coil are wound in opposite directions, so when the coil is energized, the current direction at region B will be the same. Alternatively, the side coil (320) and the bottom coil (220) can be two separate, independent coils, as shown... Figure 18 As shown. The side coil (320) and the bottom coil (220) can be wound in the same direction, but with opposite current directions, so that the current direction is consistent in region B. The consistent current direction will cause electromagnetic field coupling between the side coil (320) and the bottom coil (220) in region B, making the magnetic field in region B stronger and improving the heating effect on the pot body (100). This avoids the problem of magnetic field repulsion caused by the reverse electromagnetic field, which would prevent effective heating.

[0094] In one implementation, such as Figure 2-6 As shown, the spool edge of the side spool (300) includes a second connecting edge (301). The outline of the first connecting edge (201) matches the outline of the second connecting edge (301), and the first connecting edge (201) abuts against the second connecting edge (301).

[0095] The contours of the first connecting edge (201) and the second connecting edge (301) fit together, so that the connection position of the bottom coil (200) and the side coil (300) has a region where the contours fit together, which makes the connection matching degree of the bottom coil (200) and the side coil (300) better, the structure more compact, and the heating more concentrated.

[0096] There can be various contour matching methods, such as in one implementation method, for example... Figure 2-11 As shown, both the second connecting edge (301) and the first connecting edge (201) are arc-shaped areas. The second connecting edge (301) can be protruding outwards, while the first connecting edge (201) can be recessed towards the center A of the coil.

[0097] In another implementation, such as Figure 12-16 As shown, at least one side of the first connecting edge (201) is provided with a wrap corner (240), which extends toward the side coil (300) and fits against the edge of the side coil (300).

[0098] The corner (240) is a raised area provided on the edge of the bottom coil (200). There can be two corners (240), located on the outer ends of the first connecting edge (201). The corners (240) extend along the edge of the side coil (300). It can be understood that the side of the corner (240) that is in contact with the side coil (300) is an extension of the first connecting edge (201), which makes the contact or fitting area between the side coil (300) and the bottom coil (200) longer, and makes the connection between the side coil (300) and the bottom coil (200) better. More specifically, the two corners (240) correspond to two support ribs, which makes the heating at the corners (240) more concentrated, further increasing the heating efficiency between the side coil (300) and the bottom coil (200).

[0099] Alternatively, in other embodiments, at least one side of the second connecting edge (301) is provided with a corner bead extending toward the bottom coil (200) and fitting against the edge of the bottom coil (200). This has the same effect as providing a corner bead (240) on at least one side of the first connecting area (201), and can be configured according to actual processing conditions, which will not be elaborated here.

[0100] In some other embodiments, both the side coil (300) and the bottom coil (200) are processed such that their extending directions are consistent near the first connecting edge (201) and the second connecting edge (301). For example, the bottom coil (200) extends in the region between 5 cm from the first connecting edge (201) and the first connecting edge (201), and the side coil (300) extends in the region between 5 cm from the second connecting edge (301). This makes the transition between the side coil (300) and the bottom coil (200) at the connection point smoother, which is more conducive to heat dissipation.

[0101] In one implementation, such as Figure 11 and Figure 16 As shown, the extension of the side coil (300) in the circumferential direction of the pot body (100) is greater than the extension of the side coil (300) in the direction from the opening of the pot body (100) to the bottom of the pot.

[0102] Figure 6 , Figure 11 and Figure 16 The structural views of the side coil (300) in the tangential plane directions perpendicular to the center of the side coil (300), namely directions B, D, and F, are shown respectively. It can be seen that the projected profile of the side coil (300) in the tangential plane directions perpendicular to the center of the side coil (300) can be as follows: Figure 6 The circle shown, or it could also be like... Figure 11 and Figure 16The side coil (300) is elliptical. When the side coil (300) is elliptical, the circumferential extension of the side coil (300) on the bottom wall is greater, resulting in a larger heating area for the side coil (300). Furthermore, the side coil (300) is farther from the opening of the pot body (100), reducing the temperature near the opening and preventing overheating of the food at the opening. In addition, Figure 5 , Figure 10 and Figure 15 The structural views of the bottom coil (200) in the tangential plane directions perpendicular to the coil center A of the bottom coil (200), namely directions A, C, and E, are shown respectively. It can be seen that the projected profile of the bottom coil (200) in the tangential plane directions perpendicular to the coil center A of the bottom coil (200) can be as follows: Figure 5 , 10 The shape shown extends less in the longitudinal direction away from the side panel (300) and more in the transverse direction perpendicular to the longitudinal direction; or, it could be as follows: Figure 15 The shape shown is characterized by a larger extension in the longitudinal direction and a narrower transverse direction perpendicular to the longitudinal direction. The bottom coil (200) and side coil (300) of different shapes can be combined arbitrarily according to heating requirements.

[0103] In one implementation, such as Figure 19-20 As shown, a first connecting component (230) is provided on the bottom coil (200), and a second connecting component (330) is provided on the side coil (300). The first connecting component (230) is used to cooperate with the second connecting component (330) to connect the bottom coil (200) and the side coil (300).

[0104] The first connecting assembly (230) may include a first plug plate and two connecting posts located on both sides of the first plug plate. The second connector (330) may include a second plug plate and a plug piece. The first plug plate has a strip-shaped opening adapted to the plug piece, and the second plug plate has a circular opening adapted to the connecting posts. The plug piece is used to insert into the first plug plate, and the connecting posts are used to insert into the second plug plate, so that the bottom coil (200) and the side coil (300) are tightly connected and not easily shifted.

[0105] In one implementation, such as Figure 4 , Figure 9 and Figure 14 As shown, the angle H between the tangent at the center of the bottom coil (200) and the tangent at the center of the side coil (300) ranges from 1° to 189°, preferably from 90° to 170°, and can be applied to most shapes of pot bodies (100).

[0106] In some other implementations, such as Figure 21As shown, there are at least two side reels (300), and at least two side reels (300) are connected to the bottom reel (200) respectively, and the side reels (300) are located on different sides of the bottom reel (200).

[0107] For example, there may be two side coils (300), which can be located on opposite sides of the bottom coil (200). The bottom side coil (300) located below the pot body (100) has a larger area, while the top side coil (300) located on the opposite side has a smaller area. The top side coil (300) compensates for the low temperature at the connection point between the bottom side coil (300) and the bottom coil (200). Alternatively, the side coils (300) can have the same structure, or there can be three, four, etc., which can be selected according to the actual heating requirements.

[0108] On the other hand, embodiments of the present invention also provide a cooking device, including the coil assembly of any of the foregoing, as well as a pot body (100), a housing, a coil support, and a power assembly. The power assembly is connected to the housing and the pot body (100) respectively, and is used to drive the pot body (100) to rotate around a central axis. The bottom coil (200) and the side coils (300) are connected to the housing via the coil support.

[0109] The cooking device provided in this embodiment of the invention includes the coil assembly described in any of the above claims, and has the advantages of the coil assembly described in any of the above claims, which will not be repeated here. In addition, multiple connectors, such as four connectors, may be provided on the edges of the side coil (300) and the bottom coil (200) for fixed connection with the coil support.

[0110] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A coil assembly for heating a pot body (100) in a cooking device, the pot body (100) being rotatable about a central axis, the pot body (100) comprising a bottom, an opening, and a bottom wall, the bottom being opposite to the opening, and the bottom wall being the area where food is located during cooking in the pot body (100), characterized in that, The coil assembly includes: Bottom reel (200) and side reel (300); The bottom coil (200) is opposite to the bottom of the pot; The side reel (300) is opposite to the bottom wall. The edge of the bottom reel frame (210) includes a first connecting edge (201), and the edge of the side reel frame (310) includes a second connecting edge (301). The bottom reel (200) and the side reel (300) are connected by the first connecting edge (201) and / or the second connecting edge (301). The bottom coil (200) and the side coil (300) are respectively used to heat the pot body (100) by the bottom of the pot and the bottom wall; The bottom coil (200) includes a bottom coil frame (210) and a bottom coil (220), the bottom coil (220) being wound around the bottom coil frame (210); The density of the bottom coil (220) in the bottom reel (210) between the connection position with the side reel (300) and the center of the reel of the bottom reel (210) is greater than the density of the bottom coil (220) between the end of the bottom reel (210) away from the side reel (300) and the center of the reel of the bottom reel (210); The side coil (300) includes a side coil frame (310) and a side coil (320), the side coil (320) being wound around the side coil frame (310). The density of the side coils (320) in the side reel (310) between the connection position with the bottom reel (200) and the center of the reel of the side reel (310) is greater than the density of the side coils (320) between the end of the side reel (310) away from the bottom reel (200) and the center of the reel of the side reel (310).

2. The coil assembly according to claim 1, characterized in that, The bottom tray (210) includes a first top edge (202), and the distance between the first connecting edge (201) and the center of the coil is less than the distance between the first top edge (202) and the center of the coil. The center of the bottom reel (200) is located on the central rotating shaft.

3. The coil assembly according to claim 1, characterized in that, The bottom spool frame (210) includes at least two support ribs extending from the center of the spool to the edge of the spool. The support ribs include a first support rib (211) close to the side spool (300) and a second support rib (212) away from the side spool (300). The first support rib (211) and the second support rib (212) are respectively provided with mounting grooves (213). The number of mounting grooves (213) of the first support rib (211) is less than or equal to the number of mounting grooves (213) of the second support rib (212). The mounting grooves (213) of the first support rib (211) are used to embed at least two turns of the bottom coil (220), and the mounting grooves (213) of the second support rib (212) are used to embed a single turn of the bottom coil (220). Alternatively, the number of mounting slots (213) of the first support rib (211) is greater than the number of mounting slots (213) of the second support rib (212), and the mounting slots (213) are used to embed a single turn of the bottom coil (220).

4. The coil assembly according to claim 1, characterized in that, The side plate holder (310) includes a second top edge (302), and the distance between the second connecting edge (301) and the center of the coil is less than the distance between the second top edge (302) and the center of the coil.

5. The coil assembly according to claim 1, characterized in that, The side spool frame (310) includes at least two support ribs extending from the center of the spool to the edge of the spool. The support ribs include a third support rib (311) close to the bottom spool (200) and a fourth support rib (312) away from the bottom spool (200). The third support rib (311) and the fourth support rib (312) are respectively provided with mounting grooves (213). The number of mounting grooves (213) of the third support rib (311) is less than or equal to the number of mounting grooves (213) of the fourth support rib (312). The mounting grooves (213) of the third support rib (311) are used to embed at least two turns of the bottom coil (220), and the mounting grooves (213) of the fourth support rib (312) are used to embed a single turn of the bottom coil (220). Alternatively, the number of mounting slots (213) of the third support rib (311) is greater than the number of mounting slots (213) of the fourth support rib (312).

6. The coil assembly according to claim 1, characterized in that, The coil assembly also includes: Magnetic strip (400); The magnetic strip (400) extends from the bottom coil (200) through the connection point between the bottom coil (200) and the side coil (300) to the side coil (300). The magnetic strip (400) is disposed on one side of the coil assembly opposite to the pot body (100) and / or the side opposite to the pot body (100). The magnetic strip (400) is used to constrain the electromagnetic field of the bottom coil (220) and / or the side coil (300).

7. The coil assembly according to claim 1, characterized in that, The bottom coil (200) includes a bottom coil frame (210) and a bottom coil (220), the bottom coil (220) being spirally wound around the bottom coil frame (210). The side coil (300) includes a side coil frame (310) and a side coil (320), the side coil (320) being spirally wound around the side coil frame (310). The side coil (320) and the bottom coil (220) have the same routing direction near the connection position between the bottom tray (210) and the side tray (310); The routing direction is the direction of current flow; The side coil (320) and the bottom coil (220) are either an integral coil or separate coils; The bottom plate (210) and the side plate (310) are either separate structures or integrally formed structures.

8. The coil assembly according to claim 1, characterized in that, The bottom coil (200) has a first connecting edge (201) along its edge, and the side coil (300) has a second connecting edge (301) along its edge. The contour of the first connecting edge (201) matches the contour of the second connecting edge (301), and the first connecting edge (201) abuts against the second connecting edge (301); Both the second connecting edge (301) and the first connecting edge (201) are arc-shaped areas; Alternatively, at least one side of the first connecting edge (201) is provided with a wrap corner (240), the wrap corner (240) extending toward the side coil (300) and fitting against the edge of the side coil (300); Alternatively, at least one side of the second connecting edge (301) is provided with a wrap corner, which extends toward the bottom coil (200) and fits against the edge of the bottom coil (200).

9. The coil assembly according to claim 1, characterized in that, The bottom coil (200) is provided with a first connecting component (230), and the side coil (300) is provided with a second connecting component (330). The first connecting component (230) is used to cooperate with the second connecting component (330) to connect the bottom coil (200) and the side coil (300).

10. The coil assembly according to claim 1, characterized in that, The extension of the side coil (300) in the circumferential direction of the pot body (100) is greater than the extension of the side coil (300) in the direction from the opening of the pot body (100) to the bottom of the pot.

11. The coil assembly according to claim 1, characterized in that, The number of side reels (300) is at least two, and at least two side reels (300) are respectively connected to the bottom reel (200), and the side reels (300) are located on different sides of the bottom reel (200).

12. A cooking device, characterized in that, It includes the coil assembly according to any one of claims 1-11, as well as the pot body (100), the housing, the coil support and the power assembly; The power assembly is connected to the shell and the pot body (100) respectively, and the power assembly is used to drive the pot body (100) to rotate around the central axis; The bottom coil (200) and the side coil (300) are connected to the housing via the coil bracket.

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