Induction heating cooker and installation method

Abstract

To improve aesthetics and facilitate attachment of a frame to a top plate.SOLUTION: An induction heating cooker according to the disclosure includes a heating part, a top plate, and a top frame. The top frame includes: a first frame disposed at a first end of the top plate and having a first protruding part protruding downward; a second frame disposed at a second end of the top plate and fitted in the first frame; and a third frame disposed below the first frame and having a first recessed part or a first hole into which the first protruding part is inserted. The first frame has: a first frame body; a first frame side wall extending downward from an end of the first frame body; and a first flange extending from the first frame side wall to the inner side of the first frame in a plan view. The first frame is configured to be movable between a first position where the first frame is fitted in the second frame and a second position where fitting of the first frame and the second frame is released.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to an induction cooker and an installation method. [Background technology]

[0002] Patent Document 1 discloses an induction heating cooker in which a top plate is held by a top frame made up of a plurality of frames. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-186130 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, there has been a demand for an induction cooking appliance that has improved aesthetics and allows for easy attachment of a frame to a top plate.

[0005] Therefore, an object of the present disclosure is to solve the above-mentioned problems and to provide an induction heating cooker and an installation method that facilitates installation of a frame on a top plate while improving aesthetics. [Means for solving the problem]

[0006] An induction heating cooker according to one aspect of the present disclosure includes: A heating unit; a top plate disposed above the heating unit; a top frame disposed on the outer periphery of the top plate; Equipped with The top plate has a first end portion located in a front-rear direction in a plan view and a second end portion located in a left-right direction perpendicular to the front-rear direction, The top frame is a first frame disposed at the first end of the top plate and having a first protrusion protruding downward; a second frame disposed at the second end of the top plate and fitted to the first frame; a third frame disposed below the first frame and having a first recess or a first hole into which the first protrusion is inserted; Including, The first frame is a first frame body extending in the left-right direction; a first frame side wall extending downward from an end of the first frame main body in the left-right direction; a first flange extending from the first frame side wall toward the inside of the first frame in a plan view; and The first frame is configured to be movable between a first position where the first frame and the second frame are engaged and a second position where the first frame and the second frame are disengaged by sliding in the forward and backward directions on the third frame.

[0007] An attachment method according to one aspect of the present disclosure includes: A method for attaching a top frame, which is composed of a first frame, a second frame, and a third frame, to a top plate of an induction heating cooker, placing the third frame below the top plate; placing the second frame on an end of the top plate located in the left-right direction in a plan view; a step of placing the first frame on the third frame from above the third frame so that a first protrusion of the first frame is inserted into a first recess or a first hole of the third frame at an end of the top plate located in the front-rear direction in a plan view; sliding the first frame disposed on the third frame in the front-rear direction so as to fit the first frame and the second frame together; Includes.

[0008] An induction heating cooker according to one aspect of the present disclosure includes: A heating unit; a top plate disposed above the heating unit; a top frame disposed on the outer periphery of the top plate; Equipped with The top plate has a first end portion located in a front-rear direction in a plan view and a second end portion located in a left-right direction perpendicular to the front-rear direction, The top frame is a first frame disposed at the first end of the top plate and having a first protrusion protruding downward; a second frame disposed at the second end of the top plate and fitted to the first frame; a third frame disposed below the first frame and having a first recess or a first hole into which the first protrusion is inserted; Including, The first frame is a first frame body extending in the left-right direction; a first frame side wall extending downward from an end of the first frame main body in the left-right direction; a first flange extending from the first frame side wall toward the inside of the first frame in a plan view; and a surface of the third frame on which the first frame is disposed is provided with a closed opening that defines the first recess or the first hole in a plan view; In a plan view, the opening has a longitudinal direction in the front-rear direction, The dimension of the opening in the longitudinal direction is greater than the dimension of the first protrusion in the front-rear direction. [Effects of the Invention]

[0009] According to the present disclosure, it is possible to provide an induction heating cooker and an attachment method that facilitates attachment of a frame to a top plate while improving aesthetics. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a schematic perspective view showing an example of an induction heating cooker according to a first embodiment of the present disclosure. [Figure 2A] FIG. 2 is a schematic perspective plan view showing an example of a top unit. [Figure 2B] FIG. 2 is a schematic rear perspective view showing an example of a top unit. [Figure 3] FIG. 2 is a schematic exploded perspective view showing an example of a top unit. [Figure 4A] FIG. 2 is a schematic perspective plan view showing an example of a first frame. [Figure 4B] FIG. 2 is a schematic rear perspective view showing an example of a first frame. [Figure 5] FIG. 4 is a schematic perspective view showing an example of a second frame. [Figure 6A] FIG. 10 is a schematic perspective view showing an example of a third frame. [Figure 6B] 6B is a schematic partial enlarged view of a part of the third frame of FIG. 6A. FIG. [Figure 7] 2B is a schematic cross-sectional view of the top unit of FIG. 2A taken along line AA. [Figure 8] 2B is a schematic cross-sectional view of the top unit of FIG. 2A taken along line BB. [Figure 9] 4 is a flowchart showing an example of a method for attaching the top frame according to the first embodiment of the present disclosure. [Figure 10A] FIG. 10 is a schematic view showing an example of a step of arranging a first frame. [Figure 10B] FIG. 10 is a schematic view showing an example of a step of arranging a first frame. [Figure 10C] FIG. 10 is a schematic view showing an example of a step of arranging a first frame. [Figure 10D] FIG. 10 is a schematic view showing an example of a step of arranging a first frame. [Figure 11A] 10A and 10B are schematic views showing an example of a step of sliding the first frame. [Figure 11B] 10A and 10B are schematic views showing an example of a step of sliding the first frame. [Figure 12]FIG. 10 is a schematic view showing an example of a step of arranging a sealing material. DETAILED DESCRIPTION OF THE INVENTION

[0011] (Background to this disclosure) In induction cooktops, where the top plate is held together by multiple frames, gaps can form where the frames are connected due to variations in mechanical tolerances and other factors. To prevent this, the front and rear frames, which are located in front of and behind the top plate, are positioned above the top plate, and are connected by overlapping portions of the frames with the side frames located on either side of the top plate. This prevents any visible gaps between the front and rear frames and the side frames.

[0012] However, because the front and rear frames are positioned above the top plate, the lower end faces of the front and rear frames are left uncut. To solve this problem, it is possible to make the top plate smaller and provide flanges at the bottom of the front and rear frames, but this would increase the width of the side frames that hide the end faces of the top plate when viewed from above, making the car look unattractive.

[0013] In addition, in a configuration where flanges are provided on the bottom of the front and rear frames, it is possible to connect the front and rear frames to the side frames by sliding them. However, if the front and rear frames have uneven surfaces, sliding the frames will cause interference with the uneven surfaces. This makes it difficult to attach the front and rear frames to the top plate. Furthermore, there may be restrictions on the depth and width of the frames to avoid interference.

[0014] Therefore, in order to solve the above-mentioned problems, the inventors have studied the configuration of the induction heating area that improves aesthetics while making it easy to attach a frame to the top plate, and have arrived at the present disclosure.

[0015] An embodiment of the present disclosure will be described below with reference to the accompanying drawings. Note that the following description is merely exemplary in nature and is not intended to limit the present disclosure, its applications, or its uses. Furthermore, the drawings are schematic, and the ratios of the dimensions and the like do not necessarily correspond to reality.

[0016] It should be noted that, in this specification, terms such as "first," "second," etc. are used for descriptive purposes only and should not be understood as expressing or implying the relative importance or ranking of technical features. Features qualified as "first" and "second" expressly or imply the inclusion of one or more of such features.

[0017] (Embodiment 1) [Overall configuration] 1 is a schematic perspective view of an example of an induction heating cooker 1 according to a first embodiment of the present disclosure. Note that the XYZ coordinate system shown in the figure is intended to facilitate understanding of the invention and does not limit the invention. The X-axis direction indicates the left-right direction, the Y-axis direction indicates the front-rear direction, and the Z-axis direction indicates the vertical direction.

[0018] As shown in Fig. 1, the induction heating cooker 1 is a cooker that induction heats a cooking container C that contains an object to be cooked T. In this specification, the cooking container C is described as an example of an object to be heated. The object to be heated is not limited to the cooking container C, and may be any object that can be induction heated.

[0019] As shown in Fig. 1, induction cooking appliance 1 has a configuration in which a top unit 3 is placed on top of a housing 2. In this embodiment, induction cooking appliance 1 is a so-called built-in type induction cooking appliance. In induction cooking appliance 1, housing 2 is embedded in an opening in a kitchen counter, and top unit 3 is placed on the periphery of the opening.

[0020] The top unit 3 is provided with an operation unit 4 that receives operations from a user and operates the induction cooking appliance 1. For example, the operation unit 4 includes an input interface such as a button or a touch panel. The operation unit 4 may also include a display unit such as a display. The operation unit 4 is disposed on a first frame 31, which will be described later.

[0021] [Case] The housing 2 houses each component of the induction cooking device 1. The housing 2 houses the heating unit 10. The housing 2 also houses a control unit that controls the heating unit 10. For example, the housing 2 has a box-like shape with an open top.

[0022] The heating unit 10 is a heating coil that is disposed below the top plate 20 and that inductively heats an object to be heated. In this embodiment, three heating coils are disposed inside the housing 2. Note that the number of heating coils is not limited to three. For example, the number of heating coils may be one or more.

[0023] The control unit controls the heating of the heating unit 10. Specifically, the control unit is configured with a control board on which a circuit for controlling the induction heating cooker 1, such as an inverter, is mounted.

[0024] The control board includes, for example, a memory (not shown) that stores a program for controlling the induction heating cooker 1, and a processing circuit (not shown) that corresponds to a processor such as a CPU (Central Processing Unit).

[0025] The control unit is connected to the operation unit 4 and receives information input by the operation unit 4. The control unit controls the output of the inverter based on the received information, and controls the heating of the heating unit 10.

[0026] The induction heating cooker 1 may include a temperature detection unit that detects the temperature of the object to be heated. For example, the temperature detection unit may be an infrared sensor or a thermistor. The temperature detection unit is attached to the heating unit 10, for example.

[0027] The control unit may control the output of the inverter based on the temperature of the object to be heated detected by the temperature detection unit.

[0028] [Top Unit] Fig. 2A is a schematic plan perspective view showing an example of the top unit 3. Fig. 2B is a schematic rear perspective view showing an example of the top unit 3. Fig. 3 is a schematic exploded perspective view showing an example of the top unit 3.

[0029] 2A to 3, the top unit 3 includes a top plate 20 and a top frame 30 that holds the top plate 20. The top unit 3 also includes a back frame 5.

[0030] <Top plate> The top plate 20 is disposed on the upper part of the housing 2 and is used to place an object to be heated. The top plate 20 is made of a rectangular glass plate in a plan view. In this specification, "plan view" means viewing from the vertical direction, i.e., the Z-axis direction. In other words, "plan view" means viewing from the thickness direction of the top plate 20.

[0031] The top plate 20 has a first end 21 located in the front-rear direction (Y-axis direction) in a plan view, and a second end 22 located in the left-right direction (X-axis direction).

[0032] For example, the top plate 20 is formed from glass such as thermally strengthened borosilicate glass. Borosilicate glass has higher physical strength and clearer colors than crystallized glass. Therefore, when various colors of ink are printed on the backside, the color of the ink itself can be clearly seen even when viewed through the glass. Therefore, by constructing the top plate 20 from borosilicate glass, it is possible to improve safety while improving the aesthetic appearance.

[0033] Borosilicate glass is glass composed of SiO2, Al2O3, B2O2, and Na2O3, with the ratios of these components falling within a specific range. Borosilicate glass is subjected to a specific heat treatment to strengthen its surface compressive stress. For example, physical strengthening is performed by firing the borosilicate glass at a maximum temperature of approximately 700°C and then rapidly cooling it.

[0034] <Top frame> The top frame 30 is disposed on the outer periphery of the top plate 20. The top frame 30 includes a first frame 31, a second frame 32, and a third frame 33.

[0035] The first frame 31 is disposed at the first end 21 of the top plate 20. The second frame 32 is disposed at the second end 22 of the top plate 20 and fits into the first frame 31. The third frame 33 is disposed below the first frame 31. In this embodiment, the first frame 31 is disposed on the front side of the top plate 20. The second frames 32 are disposed on both sides of the top plate 20 in the left-right direction. A back frame 5 is disposed on the rear side of the top plate 20.

[0036] Fig. 4A is a schematic plan perspective view showing an example of the first frame 31. Fig. 4B is a schematic rear perspective view showing an example of the first frame 31. As shown in Figs. 4A and 4B, the first frame 31 includes a first frame main body 34, a first frame side wall 35, and a first flange 36.

[0037] The first frame body 34 is configured in the shape of a plate extending in the left-right direction. The first frame body 34 has a rectangular shape in a plan view. The first frame body 34 is disposed along the first end 21 of the top plate 20.

[0038] The first frame side walls 35 extend downward from the left-right ends of the first frame main body 34. The first frame side walls 35 are configured in the shape of plates extending from both ends of the first frame main body 34 in the left-right direction in the thickness direction of the first frame main body 34. For example, the first frame side walls 35 extend downward in a direction perpendicular to the first frame main body 34.

[0039] The first flange 36 extends from the first frame side wall 35 toward the inside of the first frame 31. The first flange 36 extends from the lower end of the first frame side wall 35 toward the inside of the first frame 31 in the left-right direction in a plan view. The first frame side wall 35 extends toward the inside of the first frame 31 in a direction perpendicular to the inner surface of the first frame side wall 35.

[0040] The first frame main body 34, the first frame sidewall 35, and the first flange 36 define a recess 37. Specifically, the first frame sidewall 35 forms the bottom of the recess 37, and the first frame main body 34 and the first flange 36 form the sidewall portions of the recess 37.

[0041] The first frame 31 has a first protrusion 38 that protrudes downward. Specifically, the first protrusion 38 is provided on the lower surface of the first frame main body 34. The first protrusion 38 has a circular shape in a plan view. The outer diameter of the first protrusion 38 decreases downward.

[0042] In this embodiment, the first frame 31 is provided with four first protrusions 38. Each of the first protrusions 38 has a convex surface, and the convex surface is provided with a first through-hole 39 that penetrates the first frame 31. The convex surface refers to the surface of the first protrusion 28 that protrudes most downward. Screws 50, which will be described later, are placed in the first through-holes 39.

[0043] 5 is a schematic perspective view showing an example of the second frame 32. As shown in FIG. 5, the second frame 32 has a second frame main body 40, a second frame cover 41, and a second flange .

[0044] The second frame body 40 is disposed along the second end 22 of the top plate 20 and extends in the thickness direction of the top plate 20. The second frame body 40 is made up of a plate-like member having a rectangular shape.

[0045] The second frame cover 41 extends in the left-right direction from the upper end of the second frame main body 40, and is disposed above the top plate 20. The second frame cover 41 extends from the upper end of the second frame main body 40 toward the side where the top plate 20 is disposed, and covers the second end 22 of the top plate 20 in the thickness direction of the top plate 20 when viewed from above.

[0046] The second flange 42 extends in the left-right direction from the lower end of the second frame main body 40, and is disposed below the top plate 20. The second flange 42 extends from the lower end of the second frame main body 40 toward the side where the top plate 20 is disposed, and covers the second end 22 of the top plate 20 in the thickness direction of the top plate 20 when viewed from below.

[0047] The second frame 32 is provided with a protrusion 43 that protrudes in the front-rear direction (Y-axis direction) of the top plate 20. The protrusion 43 is provided on the second frame main body 40. The protrusion 43 is inserted into the recess 37 of the first frame 31. This causes the first frame 31 and the second frame 32 to fit together.

[0048] In this specification, the convex portion 38 of the first frame 31 may be referred to as the first convex portion 38, and the convex portion 43 of the second frame 32 may be referred to as the second convex portion 43.

[0049] Fig. 6A is a schematic perspective view showing an example of the third frame 33. Fig. 6B is a schematic partial enlarged view showing a part of the third frame 33 in Fig. 6A. As shown in Figs. 6A and 6B, the third frame 33 has a third frame main body 44.

[0050] The third frame body 44 has a frame-shaped portion on which the top plate 20 and the second frame 32 are arranged, and a plate-shaped portion on which the first frame 31 and the back frame 5, which are arranged in the front-to-rear direction of the top plate 20, are arranged.

[0051] The third frame main body 44 is provided with a recess 45. The recess 45 is a depression into which the first protrusion 38 of the first frame 31 is inserted. The recess 45 is provided on the surface on which the first frame 31 is placed. In the recess 45, the first protrusion 38 is slidable in the front-rear direction of the top plate 20.

[0052] In plan view, a closed opening 45a that defines the recess 45 is provided on the top surface of the third frame main body 44 on which the first frame 31 is disposed. Here, "closed" means that the opening edges that define the recess 45 are continuously connected and closed in plan view. Therefore, the recess 45 is provided midway between the first end 21 of the top plate 20 and the end of the third frame 33 in the front-to-rear direction in plan view.

[0053] In a plan view, the opening 45a has a longitudinal direction that is the front-rear direction of the top plate 20. In other words, the recess 45 has a longitudinal direction that is the front-rear direction of the top plate 20 in a plan view.

[0054] In this embodiment, four recesses 45 are provided in the third frame 33. Each recess 45 has a concave surface, and a second through hole 46 penetrating the third frame 33 is provided in the concave surface. The second through hole 46 is provided closer to the first end 21 of the top plate 20 in the front-to-rear direction in plan view. Specifically, the second through hole 46 is provided closer to the first end 21 of the top plate 20 than the center of the recess 45 in plan view. The concave surface refers to the surface of the recess 45 that is recessed most downward. A screw 50, which will be described later, is placed in the second through hole 46.

[0055] In this specification, the recess 45 of the third frame 33 may be referred to as a first recess 45, and the recess 37 of the first frame 31 may be referred to as a second recess 37.

[0056] 7 is a schematic cross-sectional view of the top unit 3 shown in FIG. 2A taken along line AA. As shown in FIG. 7, the first protrusion 38 of the first frame 31 is inserted into the first recess 45 of the third frame 33. The dimension D1 of the opening 45a in the front-to-rear direction of the top plate 20, i.e., the longitudinal direction, is larger than the dimension D2 of the first protrusion 38 in the front-to-rear direction. This allows the first frame 31 to slide after being placed on the third frame 33 from above the third frame 33.

[0057] When the first frame 31 is attached to the third frame 33, the first through-holes 39 of the first protrusions 38 and the second through-holes 46 of the first recesses 45 are positioned to overlap in a plan view. The first frame 31 and the third frame 33 are connected and fixed by screws 50 placed in the first through-holes 39 and the second through-holes 46.

[0058] An adhesive 51 that bonds the first frame 31 and the third frame 33 is provided between the first recess 45 and the first end 21 of the top plate 20. This makes it possible to bond the first frame 31 to the third frame 33 while preventing the first frame 31 from floating. Note that the adhesive 51 is applied to the third frame 33 before the first frame 31 is attached to the third frame 33. When the first frame 31 slides on the third frame 33, the first frame 31 and the third frame 33 are bonded together by the adhesive 51.

[0059] 8 is a schematic cross-sectional view of the top unit 3 in FIG. 2A taken along line BB. As shown in FIG. 8, the second frame cover 41 of the second frame 32 has a cover end 41a on the side opposite to the side connected to the second frame main body 40 in the left-right direction. The cover end 41a is an end that extends from the upper end of the second frame main body 40 toward the side where the top plate 20 is disposed. In the left-right direction, the second end 22 of the top plate 20 is disposed between the cover end 41a and the second frame main body 40. As a result, in a plan view, the second frame cover 41 covers the second end 22 of the top plate 20, thereby hiding the second end 22.

[0060] A printed layer 23 formed of printing paint is provided on the surface of the top plate 20, inside the second end 22. Specifically, the printed layer 23 is provided on the underside of the top plate 20, inside the second end 22. For example, the printed layer 23 is provided inside the second end 22 of the top plate 20 within a range of 2 mm to 4 mm.

[0061] For example, the printed layer 23 is formed by screen printing or transfer printing. When forming the printed layer 23, in order to prevent dripping onto the end face of the top plate 20 and to prevent the film thickness at the peripheral portion from increasing, the printed layer 23 is formed inside the second end portion of the top plate 20. Therefore, in a plan view, a boundary between the printed layer 23 and the non-printed portion is formed at the peripheral portion of the top plate 20.

[0062] In a plan view, the second frame cover 41 is disposed at a position overlapping the outer edge 23a of the printed layer 23. That is, in the left-right direction of the top plate 20, the cover end 41a of the second frame cover 41 is disposed further inward of the top plate 20 than the outer edge 23a of the printed layer 23. This allows the second frame cover 41 to cover and conceal the outer edge 23a of the printed layer 23 and the unprinted portion in a plan view.

[0063] For example, the dimension D3 of the second frame cover 41 in the left-right direction of the top plate 20 is 4 mm or more and 7.5 mm or less. Preferably, the dimension D3 of the second frame cover 41 is 5 mm or more and 7 mm or less.

[0064] 2A and 2B, the back frame 5 is a frame disposed on the rear side of the top plate 20 in the front-rear direction. The back frame 5 is provided with an exhaust port 6. The back frame 5 is disposed on the third frame 33 and fits into the second frame 32. The back frame 5 is provided with an exhaust port 6.

[0065] [Installation method] An example of a method for attaching the top frame 30 according to the first embodiment of the present disclosure will be described with reference to Figs. 9 to 13. Fig. 9 is a flowchart showing an example of a method for attaching the top frame 30 according to the first embodiment of the present disclosure. Figs. 10A to 10D are schematic diagrams showing an example of a process for arranging the first frame 31. Figs. 11A and 11B are schematic diagrams showing an example of a process for sliding the first frame 31. Fig. 12 is a schematic diagram showing an example of a process for arranging the sealing material 7.

[0066] As shown in FIG. 9, the mounting method is a method for mounting a top frame 30, which is made up of a first frame 31, a second frame 32, and a third frame 33, on a top plate 20, and includes steps S1 to S5.

[0067] In step S1, the third frame 33 is placed below the top plate 20. Note that the back frame 5 may also be placed on the third frame 33 in step S1.

[0068] In step S2, the second frame 32 is placed at the second end 22 in the left-right direction of the top plate 20. In step S2, the second frame 32 is placed on both left-right sides of the top plate 20. The second frame 32 may be fitted into the back frame 5 on the rear side of the top plate 20.

[0069] In step S3, the first frame 31 is placed on the third frame 33. As shown in FIGS. 10A and 10B, the first frame 31 is placed on the third frame 33 from above at the first end 21 in the front-rear direction of the top plate 20. Specifically, a portion of the first frame 31 is placed on the end of the third frame 33, and the first frame 31 is placed on the third frame 33 from above so as to rotate.

[0070] 10C and 10D show a state in which the first frame 31 is placed on the third frame 33. As shown in FIG. 10D, the first frame 31 is placed on the third frame 33 so that the first protrusion 38 of the first frame 31 is inserted into the first recess 45 of the third frame 33.

[0071] Furthermore, as shown in FIG. 10C, in a state where the first frame 31 is placed on the third frame 33, a gap SP1 exists between the first frame 31 and the second frame 32.

[0072] As shown in FIG. 10D, when the first frame 31 is placed on the third frame 33, the first protrusion 38 is located on the opposite side of the top plate 20 from the center of the first recess 45 in the longitudinal direction.

[0073] In this way, when the first frame 31 is placed on the third frame 33, the first frame 31 and the second frame 32 are not engaged with each other, and the first frame 31 is positioned at position P2 where it is disengaged from the second frame 32.

[0074] In this embodiment, before placing the first frame 31 on the third frame 33, adhesive 51 is provided between the first recess 45 and the first end 21 of the top plate 20 in the front-to-rear direction of the top plate 20 to bond the first frame 31 and the third frame 33. For example, by attaching the first frame 31 to which adhesive 51 has been applied to the third frame 33, the adhesive 51 is disposed between the first frame 31 and the third frame 33, making it possible to easily bond the first frame 31 and the third frame 33. Note that the step of providing adhesive 51 may be performed before step S3.

[0075] Returning to FIG. 9, in step S4, the first frame 31 placed on the third frame 33 is slid forward and backward. As shown in FIGS. 10C and 10D, the first frame 31 is slid in a direction approaching the first end 21 of the top plate 20. At this time, the second protrusion 43 of the second frame is inserted into the second recess 37 of the first frame 31. This causes the first frame 31 and the second frame 32 to fit together.

[0076] 11A and 11B show a state in which the first frame 31 has been slid and fitted into the second frame 32. As shown in Fig. 11A, the first frame 31 and the second frame 32 are fitted together with no or almost no gap SP1 between them.

[0077] 11B, when the first frame 31 slides, the first protrusion 38 slides within the first recess 45. Specifically, the first protrusion 38 moves in the longitudinal direction of the first recess 45 in a direction approaching the first end 21 of the top plate 20. This prevents the first protrusion 38 from interfering with the third frame 33 and hindering the sliding movement of the first frame 31.

[0078] When the first protrusion 38 slides, the first through-hole 39 provided in the convex surface of the first protrusion 38 and the second through-hole 46 provided in the concave surface of the first concave portion 45 overlap in a plan view. By placing fasteners such as screws 50 in the first through-hole 39 and the second through-hole 46, the first frame 31 and the third frame 33 can be connected and fixed together.

[0079] Furthermore, as the first frame 31 slides over the third frame 33, the adhesive 51 provided on the third frame 33 comes into contact with the first frame 31, bonding the first frame 31 and the third frame 33 together.

[0080] In this manner, when the first frame 31 has slid, the first frame 31 is disposed at position P1 where it fits with the second frame 32. Furthermore, the first frame 31 is connected and fixed to the third frame 33 when disposed at position P1.

[0081] The first frame 31 is configured to be movable between a position P1 where the first frame 31 and the second frame 32 are engaged and a position P2 where the first frame 31 and the second frame 32 are disengaged by sliding in the front-to-rear direction on the third frame 33. Note that in this specification, the position P1 where the first frame 31 and the second frame 32 are engaged may be referred to as the first position P1, and the position P2 where the first frame 31 and the second frame 32 are disengaged may be referred to as the second position P2.

[0082] Returning to Fig. 9, in step S5, sealing material 7 is placed on the undersides of first frame 31 and second frame 32. As shown in Fig. 12, when first frame 31 and second frame 32 are fitted together, the undersides of first frame 31 and second frame 32 are flush with each other. "Flush" means that the undersides of first frame 31 and second frame 32 are connected with almost no step.

[0083] The lower surface of the first frame 31 is the lower surface of the first flange 36, and the lower surface of the second frame 32 is the lower surface of the second flange 42. The sealing material 7 is disposed across the first frame 31 and the second frame 32.

[0084] [effect] According to the induction heating cooker 1 according to the first embodiment, the following effects can be achieved.

[0085] The induction cooking appliance 1 according to the first embodiment includes a heating unit 10, a top plate 20, and a top frame 30. The top plate 20 is disposed above the heating unit 10. The top frame 30 is disposed on the outer periphery of the top plate 20. The top plate 20 has a first end 21 located in the front-rear direction (Y-axis direction) in a plan view and a second end 22 located in the left-right direction (X-axis direction) perpendicular to the front-rear direction. The top frame 30 includes a first frame 31, a second frame 32, and a third frame 33. The first frame 31 is disposed at the first end 21 of the top plate 20 and has a first protrusion 38 that protrudes downward. The second frame 32 is disposed at the second end 22 of the top plate 20 and fits into the first frame 31. The third frame 33 is disposed below the first frame 31 and has a first recess 45 into which the first protrusion 38 is inserted. The first frame 31 has a first frame main body 34, a first frame sidewall 35, and a first flange 36. The first frame main body 34 extends in the left-right direction. The first frame sidewall 35 extends downward from an end of the first frame main body 34 in the left-right direction. The first flange 36 extends from the first frame sidewall 35 toward the inside of the first frame 31 in a plan view. The first frame 31 is configured to be movable between a first position P1 and a second position P2 by sliding in the front-rear direction on the third frame 33. The first position P1 is a position where the first frame 31 and the second frame 32 are engaged with each other, and the second position P2 is a position where the first frame 31 and the second frame 32 are disengaged from each other.

[0086] This configuration allows the top frame 30 to be easily attached to the top plate 20 while improving aesthetics. The lower end of the first frame 31 of the top frame 30 can be provided with the first flange 36 without being left uncut. Furthermore, the first frame 31 is placed on the third frame 33 from above so that the first protrusion 38 is inserted into the first recess 45, and the first frame 31 can be slid to fit the first frame 31 and the second frame 32 together. This allows the first frame 31 to be easily attached to the second frame 32 while improving aesthetics.

[0087] The surface of the third frame 33 along which the first frame 31 slides is provided with a closed opening 45a that defines the first recess 45 in a plan view. This configuration improves aesthetics and makes it easier to attach the top frame 30 to the top plate 20.

[0088] In a plan view, the opening 45a has a longitudinal direction in the front-to-rear direction. A dimension D1 of the opening 45a in the longitudinal direction is larger than a dimension D2 of the first protrusion 38 in the front-to-rear direction. This configuration forms a space in which the first protrusion 38 can slide within the first recess 45. This allows the first frame 31 to slide easily on the third frame 33.

[0089] A first through hole 39 that penetrates the first frame 31 is provided in the convex surface of the first protrusion 38. A second through hole 46 that penetrates the third frame is provided in the concave surface of the first recess 45. When the first frame 31 is located at the first position P1, the first through hole 39 and the second through hole 46 overlap in a plan view. With this configuration, when the first frame 31 is located at the first position P1, the first through hole 39 and the second through hole 46 overlap, allowing a fastener such as a screw 50 to be placed therein. This makes it possible to easily connect and fix the first frame 31 to the third frame 33.

[0090] The first frame 31 is disposed on the front side of the top plate 20. With this configuration, it is possible to improve the aesthetic appearance of the front side of the induction cooking appliance 1, which is easily noticeable to users.

[0091] The second frame 32 has a second frame main body 40, a second frame cover 41, and a second flange 42. The second frame main body 40 is disposed along the second end 22 of the top plate 20 and extends in the thickness direction (Z-axis direction) of the top plate 20. The second frame cover 41 extends in the left-right direction (X-axis direction) from the upper end of the second frame main body 40 and is disposed above the top plate 20. The second flange 42 extends in the left-right direction from the lower end of the second frame main body 40 and is disposed below the top plate 20. The second frame cover 41 has a cover end 41a on the side opposite to the side connected to the second frame main body 40 in the left-right direction. In the left-right direction, the second end 22 of the top plate 20 is disposed between the cover end 41a and the second frame main body 40. With this configuration, the second end 22 of the top plate 20 is hidden by the second frame cover 41 in a plan view, thereby improving aesthetics.

[0092] In a plan view, the dimension D3 of the second frame cover 41 in the left-right direction is 4 mm to 7.5 mm. This configuration reduces the dimension D3 of the second frame cover 41 in a plan view, making the width of the second frame 32 appear smaller to the user. This further improves aesthetics.

[0093] A printed layer 23 formed of printing paint is provided on the surface of the top plate 20, more inward than the second end 22. In plan view, the second frame cover 41 is disposed at a position overlapping the outer edge 23a of the printed layer 23. With this configuration, the outer edge 23a of the printed layer 23 is hidden by the second frame cover 41 in plan view, thereby improving aesthetics.

[0094] The lower surface of the first flange 36 and the lower surface of the second flange 42 are flush with each other. This configuration can further improve aesthetics. In addition, the lower surfaces of the first flange 36 and the second flange 42 can be used as sealing surfaces.

[0095] The induction cooking appliance 1 further includes a seal member 7 arranged across the first flange 36 and the second flange 42. With this configuration, the seal member 7 can be easily attached.

[0096] The second frame 32 has a second protrusion 43 that protrudes in the front-to-rear direction. The second protrusion 43 is inserted into a second recess 37 defined by the first frame main body 34, the first frame sidewall 35, and the first flange 36. This configuration allows the first frame 31 and the second frame 32 to be easily fitted together. In addition, the gap SP1 between the first frame 31 and the second frame 32 can be eliminated or almost eliminated, further improving aesthetics.

[0097] The induction heating cooker 1 is further provided with an operation unit 4 that is disposed on the first frame 31 and that operates the induction heating cooker. With this configuration, the operability of the induction heating cooker can be improved.

[0098] In a plan view, the third frame 33 is provided with an adhesive 51 between the first recess 45 and the first end 21 of the top plate 20, bonding the first frame 31 and the third frame 33 together. This configuration allows the first frame 31 and the third frame 33 to be easily bonded and fixed together. The adhesive 51 is applied to the first frame 31, and is disposed between the first recess 45 and the first end 21 of the top plate 20 by sliding the first frame 31 from the second position P2 to the first position P1. The first frame 31 is disposed on the third frame 33 from above so that the first protrusion 38 is inserted into the first recess 45, and is then slid. This prevents the adhesive 51 from adhering to other locations (e.g., the front side) of the third frame 33, and allows the adhesive 51 to be efficiently disposed between the first recess 45 and the first end 21 of the top plate 20.

[0099] The mounting method of the first embodiment is a method of mounting a top frame 30 composed of a first frame 31, a second frame 32, and a third frame 33 on a top plate 20 of an induction cooking appliance 1. The mounting method includes the following steps S1 to S4. In step S1, the third frame 33 is placed below the top plate 20. In step S2, the second frame 32 is placed at a second end 22 of the top plate 20 located in the left-right direction in a plan view. In step S3, the first frame 31 is placed on the third frame 33 from above so that the first protrusions 38 of the first frame 31 are inserted into the first recesses 45 of the third frame 33 at a first end 21 of the top plate 20 located in the front-rear direction in a plan view. In step S4, the first frame 31 placed on the third frame 33 is slid in the front-rear direction so that the first frame 31 and the second frame 32 are fitted together.

[0100] With this configuration, the top frame 30 can be easily attached to the top plate 20 while improving aesthetics.

[0101] The mounting method further includes the step of applying adhesive 51 that bonds the first frame 31 and the third frame 33 between the first recess 45 and the first end 21 of the top plate 20 in the front-to-rear direction before placing the first frame 31 on the third frame 33. With this configuration, the first frame 31 and the third frame 33 can be easily bonded and fixed.

[0102] In the present embodiment, an example in which the first recess 45 is provided in the third frame 33 has been described, but the present invention is not limited to this. For example, the third frame 33 may be provided with a first hole instead of the first recess 45. Even with such a configuration, the effects described in the present embodiment can be achieved.

[0103] In the present embodiment, an example in which four first protrusions 38 and four first recesses 45 are provided has been described, but the present invention is not limited to this. For example, one or more first protrusions 38 and one or more first recesses 45 may be provided.

[0104] In the present embodiment, an example in which the first frame 31 is disposed on the front side of the top plate 20 has been described, but the present invention is not limited to this. For example, the first frame 31 may be disposed on the rear side of the top plate 20. Alternatively, the back frame 5 may have a configuration similar to that of the first frame 31.

[0105] As described above, the above embodiment has been described as an example of the technology disclosed in the present application. However, the technology in the present disclosure is not limited to this, and can be applied to embodiments in which modifications, substitutions, additions, omissions, etc. are made as appropriate.

[0106] Although the present disclosure has been fully described in connection with the preferred embodiments with reference to the accompanying drawings, various changes and modifications will be apparent to those skilled in the art, and such changes and modifications are to be understood as being included within the scope of the present disclosure as defined by the appended claims unless they depart therefrom.

[0107] (Outline of the embodiment) (1) The induction cooking device of the present disclosure includes a heating unit, a top plate disposed above the heating unit, and a top frame disposed on the outer periphery of the top plate. The top plate has a first end located in a front-to-rear direction in a plan view and a second end located in a left-to-right direction perpendicular to the front-to-rear direction. The top frame includes a first frame disposed at the first end of the top plate and having a first protrusion protruding downward, a second frame disposed at the second end of the top plate and engaging with the first frame, and a second frame disposed below the first frame and having a first protrusion. and a third frame having a first recess or a first hole into which a part is inserted, the first frame having a first frame main body extending in the left-right direction, a first frame side wall extending downward from an end of the first frame main body in the left-right direction, and a first flange extending from the first frame side wall toward the inside of the first frame in a plan view, the first frame being configured to be movable between a first position where the first frame and the second frame are engaged and a second position where the first frame and the second frame are disengaged by sliding in the front-rear direction on the third frame.

[0108] (2) In the induction cooking device of (1), the third frame, along which the first frame slides, may have a closed opening on a surface thereof that defines the first recess or the first hole in plan view.

[0109] (3) In the induction cooking device of (2), the opening may have a longitudinal direction in the front-rear direction in a plan view, and the dimension of the opening in the longitudinal direction may be larger than the dimension of the first protrusion in the front-rear direction.

[0110] (4) In the induction heating cooker of any one of (1) to (3), a first through hole penetrating the first frame may be provided in the convex surface of the first convex portion, and a second through hole penetrating the third frame may be provided in the concave surface of the first concave portion, and when the first frame is located in the first position, the first through hole and the second through hole may overlap in a plan view.

[0111] (5) In the induction cooking device of any one of (1) to (4), the first frame may be disposed in front of the top plate.

[0112] (6) In any of the induction heating cookers (1) to (5), the second frame may have a second frame body arranged along the second end of the top plate and extending in the thickness direction of the top plate, a second frame cover extending in the left-right direction from the upper end of the second frame body and arranged above the top plate, and a second flange extending in the left-right direction from the lower end of the second frame body and arranged below the top plate, and the second frame cover may have a cover end on the opposite side in the left-right direction to the side connected to the second frame body, and the second end of the top plate may be arranged between the cover end and the second frame body in the left-right direction.

[0113] (7) In the induction cooking device of (6), the dimension of the second frame cover in the left-right direction in a plan view may be 4 mm or more and 7.5 mm or less.

[0114] (8) In the induction heating cooker of (6) or (7), a printing layer formed by printing paint may be provided on the surface of the top plate inside the second end, and in a planar view, the second frame cover may be positioned so as to overlap the outer edge of the printing layer.

[0115] (9) In the induction cooking device according to any one of (6) to (8), the lower surface of the first flange and the lower surface of the second flange may be flush with each other.

[0116] (10) The induction cooking device according to any one of (6) to (9) may further include a seal member disposed across the first flange and the second flange.

[0117] (11) In any of the induction heating cookers (1) to (10), the second frame may have a second protrusion protruding in the front-to-rear direction, and the second protrusion may be inserted into a second recess defined by the first frame body, the first frame side wall, and the first flange.

[0118] (12) The induction cooking device of any one of (1) to (11) may further include an operating unit disposed on the first frame for operating the induction cooking device.

[0119] (13) In the induction heating cooker of any one of (1) to (12), the third frame may have an adhesive between the first recess or the first hole and the first end of the top plate in a plan view to bond the first frame and the third frame.

[0120] (14) The mounting method disclosed herein is a method for mounting a top frame consisting of a first frame, a second frame, and a third frame on a top plate of an induction cooking appliance, and includes the steps of: placing the third frame below the top plate; placing the second frame on an end of the top plate located in the left-right direction in a plan view; placing the first frame on the third frame from above the third frame so that the first convex portion of the first frame is inserted into the first concave portion or first hole of the third frame at the end of the top plate located in the front-to-back direction in a plan view; and sliding the first frame placed on the third frame in the front-to-back direction so as to engage the first frame with the second frame.

[0121] (15) The mounting method of (14) may further include a step of providing adhesive between the first recess or the first hole and the end of the top plate in the front-to-rear direction before placing the first frame on the third frame to bond the first frame and the third frame.

[0122] (16) The induction heating cooker of the present disclosure includes a heating unit, a top plate disposed above the heating unit, and a top frame disposed on the outer periphery of the top plate. The top plate has a first end located in a front-to-rear direction in a plan view and a second end located in a left-to-right direction perpendicular to the front-to-rear direction. The top frame includes a first frame disposed at the first end of the top plate and having a first protrusion protruding downward, a second frame disposed at the second end of the top plate and engaging with the first frame, and a first frame disposed below the first frame and into which the first protrusion is inserted. and a third frame having a recess or a first hole, wherein the first frame has a first frame main body extending in the left-right direction, a first frame side wall extending downward from an end of the first frame main body in the left-right direction, and a first flange extending from the first frame side wall toward the inside of the first frame in a planar view, and a closed opening defining the first recess or the first hole in a planar view is provided on the surface of the third frame on which the first frame is arranged, and in a planar view, the opening has a longitudinal direction in the front-to-rear direction, and the dimension of the opening in the longitudinal direction is greater than the dimension of the first protrusion in the front-to-rear direction. [Industrial Applicability]

[0123] The induction heating cooker of the present disclosure is applicable to a configuration in which a top plate is held by a plurality of frames. [Explanation of symbols]

[0124] 1 induction cooker 2. Case 3 Top Unit 4 Control section 5 Back Frame 6 exhaust port 7 Sealing material 10 Heating section 20 Top Plate 21 First end 22 Second end 23 Printing layer 23a outer edge 30 Top Frame 31 First Frame 32 2nd frame 33 Third Frame 34 First frame body 35 First frame side wall 36 First flange 37 Recess 38 Convex part 39 First through hole 40 Second frame body 41 Second frame cover 42 Second flange 43 Convex part 44 Third frame body 45 recess 45a opening 46 Second through hole 50 screws 51 Adhesive D1, D2, D3 dimensions

Claims

1. A heating unit; a top plate disposed above the heating unit; a top frame disposed on the outer periphery of the top plate; Equipped with the top plate has a first end portion positioned in a front-rear direction in a plan view and a second end portion positioned in a left-right direction perpendicular to the front-rear direction, The top frame is a first frame disposed at the first end of the top plate and having a first protrusion protruding downward; a second frame disposed at the second end of the top plate and fitted to the first frame; a third frame disposed below the first frame and having a first recess or a first hole into which the first protrusion is inserted; Including, The first frame is a first frame body extending in the left-right direction; a first frame sidewall extending downward from an end of the first frame main body in the left-right direction; a first flange extending from the first frame side wall toward the inside of the first frame in a plan view; and the first frame is configured to be movable between a first position where the first frame and the second frame are engaged with each other and a second position where the first frame and the second frame are disengaged from each other by sliding in the front-rear direction on the third frame; a surface of the third frame along which the first frame slides is provided with a closed opening that defines the first recess or the first hole in a plan view; In a plan view, the opening has a longitudinal direction in the front-rear direction, a dimension of the opening in the longitudinal direction is larger than a dimension of the first protrusion in the front-rear direction; Induction heating cooker.

2. A heating unit, a top plate disposed above the heating unit; a top frame disposed on the outer periphery of the top plate; Equipped with the top plate has a first end portion positioned in a front-rear direction in a plan view and a second end portion positioned in a left-right direction perpendicular to the front-rear direction, The top frame is a first frame disposed at the first end of the top plate and having a first protrusion protruding downward; a second frame disposed at the second end of the top plate and fitted to the first frame; a third frame disposed below the first frame and having a first recess or a first hole into which the first protrusion is inserted; Including, The first frame is a first frame body extending in the left-right direction; a first frame sidewall extending downward from an end of the first frame main body in the left-right direction; a first flange extending from the first frame side wall toward the inside of the first frame in a plan view; and a surface of the third frame on which the first frame is disposed is provided with a closed opening that defines the first recess or the first hole in a plan view; In a plan view, the opening has a longitudinal direction in the front-rear direction, a dimension of the opening in the longitudinal direction is larger than a dimension of the first protrusion in the front-rear direction; Induction heating cooker.

3. a first through-hole penetrating through the first frame is provided in a convex surface of the first convex portion; a second through-hole penetrating the third frame is provided in a concave surface of the first concave portion; When the first frame is located at the first position, the first through hole and the second through hole overlap each other in a plan view. The induction heating cooker according to claim 1 .

4. The first frame is disposed in front of the top plate.

3. The induction heating cooker according to claim 1 or 2.

5. The second frame is a second frame body disposed along the second end of the top plate and extending in a thickness direction of the top plate; a second frame cover extending in the left-right direction from an upper end of the second frame body and disposed above the top plate; a second flange extending in the left-right direction from a lower end of the second frame body and disposed below the top plate; and the second frame cover has a cover end portion on the opposite side to the side connected to the second frame main body in the left-right direction, In the left-right direction, the second end of the top plate is disposed between the cover end and the second frame body.

3. The induction heating cooker according to claim 1 or 2.

6. In a plan view, the dimension of the second frame cover in the left-right direction is 4 mm or more and 7.5 mm or less. The induction heating cooker according to claim 5.

7. a printing layer formed of a printing paint is provided on a surface of the top plate on an inner side of the second end, In a plan view, the second frame cover is disposed at a position overlapping an outer edge of the printing layer. The induction heating cooker according to claim 5.

8. The lower surface of the first flange and the lower surface of the second flange are flush with each other. The induction heating cooker according to claim 5.

9. Further, a sealant is provided across the first flange and the second flange. The induction heating cooker according to claim 5.

10. the second frame has a second protrusion that protrudes in the front-rear direction, the second protrusion is inserted into a second recess defined by the first frame body, the first frame side wall, and the first flange; 3. The induction heating cooker according to claim 1 or 2.

11. Further, an operation unit is disposed on the first frame and operates the induction heating cooker.

3. The induction heating cooker according to claim 1 or 2.

12. an adhesive for bonding the first frame and the third frame to each other is provided between the first recess or the first hole and the first end of the top plate in a plan view; 3. The induction heating cooker according to claim 1 or 2.

13. A method for attaching the top frame to the top plate in the induction heating cooker according to claim 1 or 2, comprising: placing the third frame below the top plate; placing the second frame on an end of the top plate located in the left-right direction in a plan view; a step of placing the first frame on the third frame from above the third frame so that the first convex portion of the first frame is inserted into the first concave portion or the first hole of the third frame at an end of the top plate located in the front-rear direction in a plan view; sliding the first frame disposed on the third frame in the front-rear direction so as to fit the first frame and the second frame together; Including, Installation method.

14. before placing the first frame on the third frame, applying an adhesive between the first recess or the first hole and the end of the top plate in the front-rear direction to bond the first frame and the third frame, 14. The mounting method of claim 13.

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