Heating Regulator

Abstract

In a cooking appliance in which the outer peripheral edge of the underside of the top plate is bonded to the opposing surface of the side frame via adhesive, variations in the distance between the top plate and the side frame are suppressed. [Solution] The cooking appliance comprises a top plate unit 20 and a housing 22 attached to the central portion of the lower surface of the top plate unit 20. The top plate unit 20 includes a top plate 30, a side frame 34 attached to the outer peripheral edge of the top plate 30, and an adhesive 40 for bonding the top plate 30 and the side frame 34. The side frame 34 has a first opposing surface 34g that faces the lower surface 30b of the top plate 30 via the adhesive 40. The first opposing surface 34g of the side frame 34 is provided with a protrusion 34k that projects toward the lower surface 30b of the top plate 30 and contacts the lower surface 30b of the top plate 30.

Description

Technical Field

[0001] The present disclosure relates to a heating cooker.

Background Art

[0002] Conventionally, as described in Patent Document 1, there has been known a built-in heating cooker in which a side frame is attached via an adhesive to the outer peripheral edge of a top plate on which a heating target such as a pan is placed.

Prior Art Literature

Patent Literature

[0003]

Patent Document 1

Summary of Invention

Problem to be Solved by the Invention

[0004] In the heating cooker described in Patent Document 1, the side frame is provided with an opposing surface that faces the outer peripheral edge portion of the lower surface of the top frame in the vertical direction with a gap therebetween. An adhesive is provided between the opposing surface and the lower surface of the top plate. Therefore, if too much adhesive is applied, the distance between the opposing surface and the lower surface increases, and there is a possibility that the top plate is adhered to the side frame in a state where the top plate is shifted upward relative to the side frame. Since the top plate and the side frame are also parts visible to the user, when the top plate is shifted relative to the side frame, the design of the built-in kitchen where the heating cooker is installed is deteriorated.

[0005] In view of the above, an object of the present disclosure is to suppress variation in the distance between the lower surface of the top plate and the opposing surface of the side frame in a heating cooker in which the outer peripheral edge portion of the lower surface of the top plate is adhered to the opposing surface of the side frame via an adhesive.

Means for Solving the Problem

[0006] To solve the above-mentioned problems, according to one aspect of this disclosure, A top plate unit on which the object to be heated is placed, A housing attached to the central portion of the lower surface of the top plate unit, The housing includes a heating source that is arranged inside the housing and heats the object to be heated on the top plate unit, The aforementioned top plate unit Top plate and A side frame attached to the outer edge of the top plate, The adhesive includes the top plate and the side frame, The side frame has a first opposing surface that faces the lower surface of the top plate via the adhesive, A cooking appliance is provided, wherein the first opposing surface of the side frame is provided with a protrusion that projects toward the lower surface of the top plate and contacts the lower surface of the top plate. [Effects of the Invention]

[0007] According to this disclosure, in a cooking appliance in which the outer peripheral edge portion of the lower surface of the top plate is bonded to the opposing surface of the side frame via adhesive, it is possible to suppress variations in the distance between the lower surface of the top plate and the opposing surface of the side frame. [Brief explanation of the drawing]

[0008] [Figure 1] Perspective view of a heating appliance according to one embodiment of the present disclosure [Figure 2] A schematic diagram of an example of a built-in kitchen with a cooking appliance installed. [Figure 3] Disassembled perspective view of a cooking appliance [Figure 4] Rearward perspective view of the top plate unit [Figure 5] Exploded perspective view of the top plate unit [Figure 6] Cross-sectional view of a portion of a cooking appliance along line AA shown in Figure 1. [Figure 7] Cross-sectional view of a portion of a cooking appliance along line BB shown in Figure 1. [Figure 8] Cross-sectional perspective view of the side frame along the CC line shown in Figure 5. [Figure 9] Perspective view of the top plate unit in a cooking appliance according to another embodiment. [Figure 10] Exploded perspective view of a top plate unit according to another embodiment. [Figure 11] Cross-sectional view of the top plate unit along the DD line shown in Figure 9. [Figure 12] Cross-sectional perspective view of the side frame along the EE line shown in Figure 10. [Figure 13] A partial cross-sectional view of the top plate unit in a heating appliance according to yet another embodiment. [Figure 14] Cross-sectional perspective view of the side frame in the top plate unit of a heating appliance according to a different embodiment. [Modes for carrying out the invention]

[0009] A heating appliance according to one aspect of the present disclosure comprises a top plate unit on which an object to be heated is placed, a housing attached to the central portion of the lower surface of the top plate unit, and a heating source disposed within the housing for heating the object to be heated on the top plate unit, wherein the top plate unit includes a top plate, a side frame attached to the outer peripheral end of the top plate, and an adhesive for bonding the top plate and the side frame, the side frame having a first opposing surface that faces the lower surface of the top plate via the adhesive, and the first opposing surface of the side frame having a protrusion that projects toward the lower surface of the top plate and contacts the lower surface of the top plate.

[0010] According to such an aspect, in a heating cooker wherein the outer peripheral edge portion of the lower surface of the top plate is adhered to the opposing surface of the side frame via an adhesive, variation in the distance between the lower surface of the top plate and the opposing surface of the side frame can be suppressed.

[0011] For example, the convex portion may be provided with a convex curved top surface that contacts the lower surface of the top plate. This allows the lower surface of the top plate and the convex portion of the side frame to make point contact or line contact, thereby avoiding uneven surface contact. As a result, variation in the distance between the lower surface of the top plate and the opposing surface of the side frame (variation in the height position of the top surface of the top plate) can be further suppressed.

[0012] For example, the convex portion may be a ridge. This allows the lower surface of the top plate and the convex portion of the side frame to make line contact, thereby avoiding uneven surface contact. As a result, variation in the distance between the lower surface of the top plate and the opposing surface of the side frame (variation in the height position of the top surface of the top plate) can be further suppressed.

[0013] For example, the ridges may be a plurality of ridges provided on the first opposing surface so as to extend parallel to each other and have the same projection amount. This can suppress variation in the distance between the lower surface of the top plate and the opposing surface of the side frame (variation in the height position of the top surface of the top plate), and can reduce the weight of the top plate applied to a single ridge. That is, the weight of the top plate applied to the side frame can be dispersed.

[0014] For example, the side frame may include a second opposing surface that faces the end surface of the top plate via the adhesive. This allows the top plate to be laterally fixed to the side frame, leading to improvement in the appearance quality of the top plate unit.

[0015] For example, the heating appliance may further have an underframe attached to the lower surface of the top plate and to which the housing is mounted. In this case, the protrusions of the side frames contact the lower surface of the top frame via the underframe. This reinforces the top plate and suppresses variations in the height of the top surface of the top plate, regardless of the component configuration of the top plate unit.

[0016] For example, the side frame may be provided with a relief portion that avoids vertical contact with the portion of the underframe other than the portion in contact with the protrusion. This reinforces the top plate and suppresses variations in the height position of the top surface of the top plate, regardless of the component configuration of the top plate unit.

[0017] For example, the side frame may be provided below the first opposing surface, open outward in a direction intersecting the vertical direction, and have a flow path that connects the internal space of the housing to the outside. This allows heat generated inside the housing to be discharged in a direction other than the vertical direction of the cooking appliance, for example, to the rear.

[0018] For example, the side frame may include a first side frame and a second side frame. In this case, the flow path is provided in the second side frame. This allows the first side frame to be manufactured by a simple method, such as extrusion molding.

[0019] The top plate unit may include a passage that penetrates in the vertical direction and connects the internal space of the housing to the outside. This allows heat generated inside the housing to be discharged upwards from the cooking appliance.

[0020] For example, the housing may include a flange portion that extends outward from the top toward the side frame. This allows the weight of the cooking appliance to be distributed between the side frame and the flange portion of the housing when the cooking appliance is installed in a built-in kitchen.

[0021] For example, the lower surface of the side frame and the lower surface of the flange portion of the housing may be located on the same plane. This allows the weight of the cooking appliance to be better distributed between the side frame and the flange portion of the housing when the cooking appliance is installed in a built-in kitchen.

[0022] An embodiment of this disclosure will be described below with reference to the drawings. The following description is essentially illustrative and is not intended to limit this disclosure, its applications, or its uses. Furthermore, the drawings are schematic, and the proportions of dimensions, etc., do not necessarily correspond to actual dimensions. In this specification, terms such as "first," "second," etc., are used for illustrative purposes only and should not be understood as expressing or implying relative importance or ranking of technical features. Features limited to "first" and "second" express or imply that they include one or more such features.

[0023] Figure 1 is a perspective view of a cooking appliance according to one embodiment of the present disclosure. Figure 2 is a schematic diagram of an example of a built-in kitchen in which the cooking appliance is installed. Figure 3 is an exploded perspective view of the cooking appliance.

[0024] As shown in Figures 1 to 3, the cooking appliance 10 has a top plate unit 20 that is placed on the countertop 102 of the built-in kitchen 100, and a housing 22 that is attached to the central part of the lower surface of the top plate unit 20 and housed inside the built-in kitchen 100. Specifically, the countertop 102 of the built-in kitchen 100 has a through hole 102a through which the housing 22 passes. With the housing 22 of the cooking appliance 10 passing through the through hole 102a, the outer peripheral edge of the lower surface of the top plate unit 20 is placed on the countertop 102.

[0025] Furthermore, as shown in Figure 3, the cooking appliance 10 has a plurality of heating sources 24 for heating a pot or other object to be heated, which is placed on the top plate unit 20. The plurality of heating sources 24 are arranged in the upper part of the internal space of the housing 22. In this embodiment, the heating sources 24 are heating coils that induce heating of the object to be heated, which is placed on the upper part of the top plate unit 20. However, this disclosure is not limited to heating coils as heating sources.

[0026] In this embodiment, the lower part of the internal space of the housing 22 contains a grill compartment 26 (left side) for grilling food and a control device such as a control board (right side).

[0027] Figure 4 is a rear perspective view of the top plate unit. Figure 5 is an exploded perspective view of the top plate unit. Furthermore, Figure 6 is a cross-sectional view of a portion of the cooking appliance along line AA shown in Figure 1. And finally, Figure 7 is a cross-sectional view of a portion of the cooking appliance along line BB shown in Figure 1.

[0028] As shown in Figures 4 and 5, the top plate unit 20 is rectangular in shape and includes a top plate 30, an under frame 32, and side frames 34.

[0029] The top plate 30 is a rectangular plate-shaped member having an upper surface 30a on which the object to be heated is placed. In this embodiment, since the heating source 24 is a heating coil that induces heating of the object to be heated, the top plate 30 is made of glass material.

[0030] The underframe 32 is a plate-shaped member having a through hole 32a in its central portion and is fixed to the lower surface 30b of the top plate 30. The underframe 32 functions as a reinforcing member that reinforces the top plate 30, and also as a connecting member for connecting the top plate unit 20 and the housing 22. Specifically, as shown in Figure 5, the underframe 32 is fixed to the housing 22 via a plurality of underhooks 32b provided on the underframe 32. In this embodiment, the two underhooks 32b other than the underhook 32b in the left-right center are provided (attached) to the underframe 32 as separate parts of the underframe 32. Also, in this embodiment, the underframe 32 is made of metal material.

[0031] The side frame 34 is an annular frame for protecting the end face 30c of the top plate 30. In this embodiment, as will be described in detail later, the side frame 34 is composed of two parts: a first side frame 36 and a second side frame 38.

[0032] The first side frame 36 is made of a metal material such as aluminum and is a roughly C-shaped frame that includes the front portion 34a, the left portion 34b, the right portion 34c, and part of the rear portion 34d of the side frame 34. The second side frame 38 is made of a resin material such as resin and is a straight frame that includes part of the rear portion 34d.

[0033] Furthermore, as shown in Figures 6 and 7, the side frame 34 includes a top plate support portion 34e that extends inward and supports the lower surface 30b of the top plate 30, and a side cover portion 34f that covers the end surface 30c of the top plate 30.

[0034] In this embodiment, the top plate support portion 34e of the side frame 34 has a first opposing surface 34g that faces the outer peripheral edge portion of the lower surface 30b of the top plate 30. In this embodiment, the top plate support portion 34e of the side frame 34 supports the lower surface 30b of the top plate 30 via the under frame 32.

[0035] The side cover portion 34f of the side frame 34 extends upward from the top plate support portion 34e so as not to exceed the upper surface 30a of the top plate 30. The top portion 34h of the side cover portion 34f is close to the end surface 30c of the top plate 30. Furthermore, the side cover portion 34f has a second opposing surface 34j that is spaced apart from the end surface 30c of the top plate 30.

[0036] Furthermore, as shown in Figure 6, the side frame 34 is attached to the outer edge of the top plate 30 via adhesive 40. Specifically, in this embodiment, the adhesive 40 is filled between the first opposing surface 34g of the first side frame 36 and the under frame 32, and between the second opposing surface 34j of the first side frame 36 and the end face 30c of the top plate 30. The adhesive 40 thus filled firmly fixes the entire side frame 34 to the outer edge of the top plate 30, and also prevents foreign matter such as liquid from entering between the top plate 30 and the side plate 34.

[0037] Furthermore, multiple protrusions 34k are provided on the first opposing surface 34g of the first side frame 36 in the side frame 34.

[0038] Figure 8 is a cross-sectional perspective view of the side frame along the CC line shown in Figure 5.

[0039] As shown in Figure 8, in this embodiment, the first opposing surface 34g of the first side frame 36 in the side frame 34 is provided with two protruding portions extending parallel to each other as a plurality of protrusions 34k. Each protrusion 34k protrudes from the first opposing surface 34g toward the lower surface 30b of the top plate 30 with substantially the same protrusion amount H, as shown in Figure 6. Each protrusion 34k also has a convex curved top surface that contacts the lower surface 30b of the top plate 30 via the under frame 32. In other words, in this embodiment, the protrusions 34k make line contact with the under frame 32. The amount H of protrusion of the protrusion 34k from the first opposing surface 34g is, for example, about 0.7 mm.

[0040] In this embodiment, the roughly C-shaped first side frame 36 of the side frame 34 is manufactured by bending an extruded product multiple times. Therefore, the front portion 34a, the left portion 34b, the right portion 34c, and a part of the rear portion 34d of the side frame 34 all share the cross-sectional shape shown in Figure 8.

[0041] With multiple protrusions 34k, variations in the vertical distance between the top plate 30 and the side frame 34, i.e., the overall thickness of the top plate unit 20, are suppressed. Specifically, the adhesive 40 cannot substantially exist between the convex curved top surface of the protrusion 34k and the bottom surface 30b of the top plate 30 (in this embodiment, the underframe 32). When the bottom surface 30b of the top plate 30 contacts the convex curved top surface of the protrusion 34k, the adhesive 40 on that top surface is pushed off. Therefore, the adhesive 40 exists between the portion of the first opposing surface 34g where there are no protrusions 34k and the bottom surface 30b of the top plate 30. Furthermore, the thickness of the adhesive 40 is maintained at the height H of the protrusion 34k. As a result, since there is no variation in the thickness of the adhesive 40, there is also no variation in the distance between the bottom surface 30b of the top plate 30 and the first opposing surface 34g of the side frame 34. Therefore, it is possible to suppress the deterioration of the aesthetic appearance of a built-in kitchen 100 in which a cooking appliance 10 is installed, which has a top plate unit in which the height position of the upper surface 30a of the top plate 30 varies, caused by the top plate 30 being bonded to the side frame 34 with varying amounts of adhesive.

[0042] Furthermore, in this embodiment, as shown in Figure 8, the multiple protrusions 34k extend parallel to each other, functioning as a double seal for the adhesive 40. That is, it prevents the adhesive 40 from spilling out of the top plate support portion 34e of the side frame 34 before it hardens.

[0043] Furthermore, in this embodiment, just as the first side frame 36 of the side frame 34 is bonded to the top plate 30 via adhesive 40, the second side frame 38 is also bonded to the top plate 30 via adhesive 40.

[0044] Specifically, as shown in Figures 4 and 7, in this embodiment, a flow path 38a is formed in the second side frame 38 of the side frame 34, connecting the internal space 22a of the housing 22 to the outside. The flow path 38a is located below the first opposing surface 34g. The flow path 38a also connects to the internal space 22a of the housing 22 through a gap S formed between the top plate 30 and the rear flange portion 22b of the housing 22. This rear flange portion 22b is a part of the housing 22 that extends outward (rearward) from the top of the housing 22 toward the second side frame 38. As will be explained later, as shown in Figures 3 and 6, in addition to the rear flange portion 22b, the housing 22 is provided with a front flange portion 22c, a left flange portion 22d, and a right flange portion 22e, which extend outward (forward, left, and right) toward the first side frame 36, respectively.

[0045] Furthermore, in this embodiment, the outer opening of the flow path 38a of the second side frame 38 opens towards the rear, as shown in Figures 4 and 7. Through this flow path 38a, heat inside the housing 22 is discharged toward the rear of the cooking appliance 10. For example, heat generated from the heat source 24 inside the housing 22, heat generated inside the grill compartment 26, etc., are discharged to the outside through the flow path 38a.

[0046] As described above and as shown in Figure 3, the housing 22 includes a rear flange portion 22b, a front flange portion 22c, a left flange portion 22d, and a right flange portion 22e. The lower surfaces 22f of each of these flange portions 22b to 22e and the lower surface 34m of the side frame 34 are substantially on the same plane, as shown in Figures 6 and 7. As a result, when the cooking appliance 10 is installed in the built-in kitchen 100, the lower surfaces 22f of each of the flange portions 22b to 22e and the lower surface 34m of the side frame 34 sit on the countertop 102 of the built-in kitchen 100. Therefore, the weight of the cooking appliance 10 is shared and supported by the side frame 34 and the flange portions 22b to 22e of the housing 22. In contrast, if the housing does not have flange portions, the side frame alone must support the weight of the cooking appliance. To support this weight, the side frame becomes larger, which increases the thickness of the top plate unit. In this case, the thick top plate unit is placed on the countertop of the built-in kitchen, which detracts from the aesthetic appeal of the built-in kitchen.

[0047] Furthermore, if the portion of the countertop 102 of the built-in kitchen 100 that contacts the lower surface 34m of the side frame 34 and the lower surfaces 22f of the flange portions 22b to 22e of the housing 22 are not located on the same plane, that is, if there is a step between those portions, the lower surface 34m of the side frame 34 and the lower surfaces 22f of the flange portions 22b to 22e of the housing 22 do not need to be located on the same plane. Also, sealing members may be placed between the lower surface 34m of the side frame 34 and the countertop 102, and between the lower surfaces 22f of the flange portions 22b to 22e of the housing 22 and the countertop 102.

[0048] According to this embodiment, in a cooking appliance 10 in which the outer peripheral edge portion of the lower surface 30b of the top plate 30 is bonded to the first opposing surface 34g of the side frame 34 via adhesive 40, it is possible to suppress variations in the distance between the lower surface 30b of the top plate 30 and the first opposing surface 34g of the side frame 34.

[0049] Although the present disclosure has been described above with reference to the embodiments described above, the present disclosure is not limited to the embodiments described above.

[0050] For example, in the above-described embodiment, in the heating cooker 10, heat generated in the housing 22 is discharged to the rear via a flow path 38a provided in the side frame 34 of the top plate unit 20. However, the embodiments of this disclosure are not limited to this.

[0051] Figure 9 is a perspective view of the top plate unit in a cooking appliance according to another embodiment. Figure 10 is an exploded perspective view of the top plate unit according to another embodiment. Furthermore, Figure 11 is a cross-sectional view of the top plate unit along the line DD shown in Figure 9. And Figure 12 is a cross-sectional perspective view of the side frame along the line EE shown in Figure 10.

[0052] As shown in Figures 9 and 10, in a heating appliance according to another embodiment, the top plate unit 220 includes a top plate 230, a back frame 250 located behind the top plate 230, an under frame 232 supporting the top plate 230 and the back frame 250, and a side frame 234. The top plate unit 220 is also provided with a flow path that penetrates vertically and connects the internal space of the housing to the outside. Specifically, the multiple flow paths consist of multiple through holes 250a, 250b, and 250c formed vertically in the back frame 250, and multiple through holes 232b, 232c, and 232d formed vertically in the under frame 232. A mesh cover 252 covering the multiple through holes 250a, 250b, and 250c of the back plate 250 is attached to the back plate 250. Furthermore, the through-hole 250b in the back frame 250 and the through-hole 232c in the under frame 232 constitute a flow path that connects to the internal space of the grill compartment.

[0053] The side frame 234 according to another embodiment, like the side frame 34 according to the above-described embodiment, has a first opposing surface 234g that faces the outer peripheral edge portion of the lower surface 230b of the top plate 230 via adhesive 240, as shown in Figures 11 and 12. The first opposing surface 234g is provided with a plurality of protrusions 234k, each having a convex curved top surface that projects toward the lower surface 230b of the top plate 230 and contacts the lower surface 230b. The protrusions 234k are ridges, similar to the protrusions 34k according to the above-described embodiment, and contact the top plate 230 via the underframe 232.

[0054] Furthermore, the side frame 234 according to another embodiment does not have a flow path like the flow path 38a of the side frame 34 according to the above embodiment. Therefore, the thickness (vertical size) of the side frame 234 according to the other embodiment is smaller than the thickness of the side frame 34 according to the above embodiment. As a result, the thickness of the top plate unit 220 according to the other embodiment is smaller than the thickness of the top plate unit 20 according to the above embodiment.

[0055] Furthermore, as shown in Figures 11 and 12, the side frame 234 according to another embodiment differs from the side frame 34 according to the above embodiment in that a stepped portion 234p exists at the corner between the top plate support portion 234e and the side cover portion 234f. Specifically, the side frames 34 and 234 contact the underframes 32 and 232 only via a plurality of protrusions 34k and 234k, and only in the vertical direction. In the above embodiment, since the size of the underframe 32 in the left-right and front-back directions exceeds the outer edge of the lower surface 30b of the top plate 30, the side frame 34 is not provided with a stepped portion to prevent the side frame 34 from contacting the underframe 32 in parts other than the plurality of protrusions 34k. In other words, in the above embodiment, the side frame 34 is provided with a relief portion to avoid vertical contact with parts of the underframe 32 other than the parts that contact the protrusions 34k.

[0056] Furthermore, in the above-described embodiment, as shown in Figure 6, the multiple protrusions 34k of the side frame 34 are in contact with the lower surface 30b of the top plate 30 via the under frame 32. However, the embodiments of this disclosure are not limited thereto.

[0057] Figure 13 is a partial cross-sectional view of the top plate unit in a cooking appliance according to yet another embodiment.

[0058] As shown in Figure 13, in a top plate unit 320 of a heating cooker according to yet another embodiment, the multiple protrusions 334k of the side frame 334 are in direct contact with the lower surface 330b of the top plate 330. The under frame 332 is in contact with the lower surface 334m of the side frame 334.

[0059] Furthermore, in the above-described embodiment, as shown in Figure 6, the side cover portion 34f of the side frame 34 does not extend beyond the upper surface 30a of the top plate 30. However, the embodiments of this disclosure are not limited thereto. The side cover portion may extend beyond the upper surface of the top plate, with its top portion located on the upper surface of the top plate.

[0060] In addition, in the above-described embodiment, as shown in Figures 4 and 7, the outer opening of the flow path 38a provided in the side frame 34 and connecting the internal space 22a of the housing 22 to the outside opens toward the rear. However, the embodiments of this disclosure are not limited to this. The flow path of the side frame connecting the internal space of the housing to the outside may open toward, for example, the left or the right. That is, the outer opening of the flow path may open toward a direction intersecting the vertical direction.

[0061] Furthermore, in the above-described embodiment, as shown in Figure 8, the multiple protrusions 34k provided on the first opposing surface 34g of the side frame 34, which are opposite the outer peripheral edge portion of the lower surface 30b of the top plate 30 via adhesive 40, are ridges that extend parallel to each other. However, the embodiments of this disclosure are not limited to this.

[0062] Figure 14 is a cross-sectional perspective view of the side frame of the top plate unit of a cooking appliance according to a different embodiment.

[0063] As shown in Figure 14, in the side frame 434 of the top plate unit according to a different embodiment, the multiple protrusions 434k provided on the first opposing surface 434g are hemispherical. In addition, the top surface of the protrusion 434k that contacts the lower surface of the top plate is a convex curved surface.

[0064] In other words, the multiple protrusions provided on the first opposing surface of the side frame, which are connected to the outer peripheral edge of the lower surface of the top plate via adhesive, only need to be shaped to make substantially line contact or point contact with the top plate (or underframe). Therefore, for example, multiple protrusions such as the ridge portion 34k in the above embodiment may be provided on the first opposing surface so as to intersect in a grid pattern.

[0065] In other words, the heating appliance according to the embodiment of the present disclosure is, in a broad sense, a heating appliance comprising: a top plate unit on which a heating object is placed; a housing attached to the central portion of the lower surface of the top plate unit; and a heating source disposed within the housing for heating the heating object on the top plate unit, wherein the top plate unit includes a top plate; a side frame attached to the outer peripheral end of the top plate; and an adhesive for bonding the top plate and the side frame, wherein the side frame has a first opposing surface that faces the lower surface of the top plate via the adhesive, and the first opposing surface of the side frame is provided with a convex portion that protrudes toward the lower surface of the top plate and contacts the lower surface of the top plate. [Industrial applicability]

[0066] This disclosure is applicable to cooking appliances equipped with a top plate. [Explanation of symbols]

[0067] 20 Top Plate Units 22 enclosure 22b Flange section 22c flange section 22d Flange section 22e Flange section 24 Heating source 30 Top Plate 30b Bottom side 30c end face 32 Underframe 34 Side Frames 34g First opposing surface 34j Second opposing surface 34k convex part 36. First side frame 38. Second side frame 38a Flow channel 40 Adhesives

Claims

1. A top plate unit on which the object to be heated is placed, A housing attached to the central portion of the lower surface of the top plate unit, It comprises a heating source disposed within the housing for heating the object to be heated on the top plate unit, The aforementioned top plate unit Top plate and A side frame attached to the outer edge of the top plate, The adhesive includes the top plate and the side frame, The side frame has a first opposing surface that faces the lower surface of the top plate via the adhesive, A cooking appliance in which the first opposing surface of the side frame is provided with a protrusion that projects toward the lower surface of the top plate and contacts the lower surface of the top plate.

2. The heating appliance according to claim 1, wherein the protrusion has a top surface that is a convex curved surface that contacts the lower surface of the top plate.

3. The heating appliance according to claim 2, wherein the convex portion is a ridged portion.

4. The heating appliance according to claim 3, wherein the aforementioned protrusions are a plurality of protrusions provided on the first opposing surface so as to extend parallel to each other and have the same amount of protrusion.

5. The heating appliance according to claim 1, wherein the side frame includes a second opposing surface that faces the end face of the top plate via the adhesive.

6. The above top plate is further fitted with an underframe to which the housing is attached, The heating appliance according to claim 1, wherein the protrusion of the side frame contacts the lower surface of the top plate via the under frame.

7. The cooking appliance according to claim 6, wherein the side frame is provided with a relief portion that avoids vertical contact with the portion of the underframe other than the portion in contact with the protrusion.

8. The heating appliance according to claim 1, wherein the side frame is provided below the first opposing surface, opens outward in a direction intersecting the vertical direction, and has a flow path that connects the internal space of the housing to the outside.

9. The side frame includes a first side frame and a second side frame, The heating appliance according to claim 8, wherein the flow path is provided in the second side frame.

10. The heating appliance according to claim 1, wherein the top plate unit has a flow path that penetrates in the vertical direction and communicates the internal space of the housing with the outside.

11. The heating appliance according to claim 1, wherein the housing comprises a flange portion extending outward from the top toward the side frame.

12. The heating appliance according to claim 11, wherein the lower surface of the side frame and the lower surface of the flange portion of the housing are located on the same plane.

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