A type of stove

Abstract

This utility model relates to the field of household appliance technology and discloses a stove, including a bottom shell and a junction box. The junction box is located inside the bottom shell and is used to connect an external power cord and electrically connect to the electrical system. The key feature is that a first opening and a second opening are respectively provided on the bottom wall and side wall of the bottom shell; the bottom surface of the junction box is opposite to the first opening, and the side of the junction box used for connecting the external power cord is opposite to the second opening; furthermore, the end of the junction box used for connecting the external power cord is configured such that when connected to the external power cord, its plug-in portion is located outside the bottom shell. This stove, by arranging the plug-in portion of the junction box outside the bottom shell, achieves physical isolation between the power cord connection point and the internal high-temperature environment; simultaneously, through the first and second openings, a portion of the junction box surface is in direct contact with the outside air, effectively dissipating the heat of the junction box itself, thus achieving dual thermal protection for both the power cord and the junction box.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a stove. Background Technology

[0002] Built-in cooktops, due to their compact structure, typically house the junction box for connecting external power supplies inside the bottom shell. When the cooktop is operating, the high temperature generated by the burner creates a high-temperature cavity inside the bottom shell. The fully integrated junction box and its connected external power cable are constantly exposed to this high-temperature environment, which can easily cause the insulation layer of the power cable to exceed its rated temperature resistance, accelerating thermal aging of the insulation layer and even leading to safety hazards such as short circuits and fires.

[0003] To address this issue, existing technologies typically employ solutions such as replacing the power cord with one of a higher temperature resistance rating or adding a metal heat shield around the junction box. However, these solutions not only significantly increase production costs but are also often difficult to implement in the limited internal space of compact or ultra-thin cooktops, and may lead to problems such as structural complexity and inconvenient installation.

[0004] Therefore, how to effectively solve the heat dissipation and high-temperature isolation problems of the stove junction box and power cord in a low-cost, simple, and space-saving manner is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] In response to the problems mentioned in the background art, this application provides a stove in which the plug-in part of the junction box is arranged on the outside of the bottom shell, realizing physical isolation between the power cord connection point and the internal high-temperature environment; at the same time, through the first opening and the second opening, part of the surface of the junction box is in direct contact with the outside air, which can effectively dissipate the heat of the junction box itself, realizing dual thermal protection for the power cord and the junction box; and its structure is simple, low cost and efficient assembly.

[0006] To achieve the above-mentioned objectives, the present invention employs the following technical solution: In some embodiments of this application, a stove is provided, comprising: a bottom shell; a panel mounted on the bottom shell; a burner assembly fixed on the panel; an electrical system including at least an ignition device for igniting the burner assembly; and a junction box disposed within the bottom shell, the junction box being used to connect an external power cord and electrically connect to the electrical system; characterized in that a first opening and a second opening are respectively provided on the bottom wall and side wall of the bottom shell; the bottom surface of the junction box is disposed opposite to the first opening, and the side of the junction box for connecting one end of the external power cord is disposed opposite to the second opening; and the end of the junction box for connecting the external power cord is configured such that when connected to the external power cord, its plug-in portion is located outside the bottom shell.

[0007] In some embodiments of this application, the cooktop further includes a fixing component, through which the junction box is mounted to the bottom wall of the base shell. This arrangement provides a reliable mounting base for the junction box via the fixing component, ensuring the structural stability of the junction box during transportation and use.

[0008] In some embodiments of this application, the bottom projection of the junction box is located within the first opening; the side projection of the junction box is located within the second opening. This arrangement allows the bottom and side surfaces of the junction box to be exposed to the outside of the casing to the greatest extent possible through the openings, significantly enhancing the air convection heat exchange effect with the outside environment.

[0009] In some embodiments of this application, the first opening and the second opening are interconnected, together forming a continuous opening located at the junction of the bottom wall and the side wall. This design integrates two independent openings into a continuous L-shaped opening, further increasing the opening area, optimizing the airflow path, and thus improving heat dissipation efficiency.

[0010] In some embodiments of this application, the fixing component includes a fixing base, which includes: a mounting part connected to the junction box; and a support part for fixed connection to the bottom wall of the base shell. This modular design makes the structure of the fixing base clear, with the mounting part dedicated to fixing the junction box and the support part dedicated to fixing it to the base shell, facilitating design and manufacturing.

[0011] In some embodiments of this application, the mounting portion includes a top plate; the supporting portion includes side plates extending along both sides of the top plate and folded edges formed by bending the bottom edges of the side plates; the folded edges are provided with mounting holes. This specific structure forms a stable structure resembling a "Z" shape, which not only provides a solid support for the junction box, but also facilitates subsequent fixing operations with the mounting holes on its folded edges.

[0012] In some embodiments of this application, the mounting base is made of a thermally conductive material, and at least a portion of the mounting base extends to the second opening and is exposed to the outside of the bottom shell. This design allows the mounting base to not only serve a fixing function but also function as a heat sink, actively conducting heat around the junction box to the outside of the bottom shell, achieving active heat dissipation, and further reducing the operating temperature of the junction box.

[0013] In some embodiments of this application, the junction box has a plug-in portion for inserting the external power cord at one end facing the second opening; the junction box away from the second opening is used for setting pins, and the junction box away from the second opening extends out from the mounting base. This structural layout is reasonable, separating external and internal connections, making it convenient to plug and unplug the external power cord and clear about the internal electrical connections.

[0014] In some embodiments of this application, the mounting base and the junction box are detachably connected by a snap-fit ​​structure; the snap-fit ​​structure includes at least one latch on the junction box and a corresponding slot on the mounting base. This snap-fit ​​connection method enables rapid, tool-free pre-assembly of the junction box and the mounting base, significantly improving assembly efficiency on the production line.

[0015] In some embodiments of this application, the junction box includes a box body and a cover plate disposed at the bottom of the box body; the cover plate is detachably connected to the box body to close the box body and together define a cavity for accommodating electrical connectors. This two-piece structural design facilitates wiring operations of the internal electrical connectors before installing the cover plate, and the cover plate is then closed after the operation to form a fully enclosed insulation, thus balancing operational convenience and electrical safety.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are: In the above embodiment, the connection point between the external power cord and the junction box is completely isolated from the high-temperature environment inside the bottom shell, fundamentally avoiding aging and safety risks caused by high temperatures at the power cord connection point. Simultaneously, through the first and second openings, a portion of the junction box surface is in direct contact with the outside air, forming a heat exchange channel that effectively dissipates the heat from the junction box itself, achieving dual thermal protection for both the power cord and the junction box.

[0017] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the assembled bottom shell and junction box of a cooktop according to some embodiments is shown; Figure 2 A structural schematic diagram of the cooktop and junction box after assembly is shown from another perspective according to some embodiments; Figure 3 It shows Figure 2 Exploded view; Figure 4 It shows Figure 1 Cross-sectional view; Figure 5 A schematic diagram of the bottom shell of a cooktop according to some embodiments is shown; Figure 6 A schematic diagram of the assembly of the junction box and the mounting bracket in a cooktop according to some embodiments is shown; Figure 7 A bottom view of a cooktop according to some embodiments is shown after the junction box and mounting bracket are assembled. Figure 8 A schematic diagram of the structure of the mounting base in a cooker according to some embodiments is shown; Figure 9 A schematic diagram of the junction box in a cooktop according to some embodiments is shown; Figure 10 A bottom view of the assembled bottom shell and junction box of a cooktop according to some embodiments is shown; Figure 11 It shows Figure 10 Enlarged view of point I in the image; Explanation of reference numerals in the attached figures: 100 - Bottom shell; 110 - Bottom wall; 111 - First opening; 120 - Side wall; 121 - Second opening; 200 - Junction box; 210 - Plug-in part; 220 - Clip; 230 - Positioning clip; 240 - Cover plate; 300-Fixed base; 310-Top plate; 311-Slot; 312-Positioning slot; 320-Side plate; 330-Folded edge; 331-Mounting hole; 400 - Fasteners. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0026] like Figures 1-11 As shown, some embodiments of this application provide a cooktop. This cooktop aims to solve the problems of heat dissipation and high-temperature insulation of the cooktop junction box and power cord.

[0027] Reference Figure 1The overall structure of the stove includes a base shell 100 as a basic support, a panel (not shown) mounted on the base shell 100, and a burner assembly (not shown) fixed on the panel.

[0028] The bottom shell 100 is usually made of stamped metal sheet, forming the bottom and side enclosure structure of the stove.

[0029] The panel can be made of high-temperature resistant and easy-to-clean materials such as tempered glass, stainless steel, or ceramics, with reserved installation positions for the burner assembly and user interface (such as knobs).

[0030] The burner assembly is the core component that enables flame combustion.

[0031] The stove also contains an electrical system (not shown). This electrical system includes at least an ignition device for igniting the burner assembly, such as a pulse igniter, and may also include electrical components such as a solenoid valve for flameout protection and a power indicator light. The operation of these electrical components requires an external power source.

[0032] For this purpose, the cooktop also includes a junction box 200. The junction box 200 is physically located inside the bottom shell 100, and its core function is to serve as a connection hub for internal and external circuits: one end is used to connect to the externally introduced power cord (not shown), and the other end is electrically connected to the internal electrical system of the cooktop.

[0033] In this application, the structure of the base shell 100 and the installation method of the junction box 200 have been improved to solve the safety hazard problem of the wiring part being in a high-temperature environment in the prior art.

[0034] Specifically, such as Figure 5 As shown, a first opening 111 and a second opening 121 are respectively provided on the bottom wall 110 and one side wall 120 of the bottom shell 100. These two openings establish a communication channel between the junction box 200 and the external environment.

[0035] like Figures 1-3 As shown, the junction box 200 is positioned to correspond to these two openings. Specifically, the bottom surface of the junction box 200 is positioned opposite to the first opening 111 on the bottom wall 110 of the base housing 100. Simultaneously, the side of the junction box 200 used for connecting the external power cord is positioned opposite to the second opening 121 on the side wall 120 of the base housing 100.

[0036] This spatial layout effectively positions the end of the junction box 200 used for connecting the external power cord outside the base shell 100. When the user connects the external power cord to the junction box 200, the physical location of the plug of the power cord and the socket of the junction box 200 is outside the internal high-temperature cavity enclosed by the base shell 100.

[0037] The aforementioned stove fundamentally achieves physical isolation between the power cord plug-in area and the high-temperature environment inside the bottom shell. The heat generated by the burner during operation is confined inside the bottom shell 100, preventing direct conduction or radiation to the external plug-in area. This effectively avoids accelerated aging, brittleness, or even melting of the insulation layer of the power cord due to prolonged exposure to high temperatures, thus eliminating serious safety accidents such as short circuits, electrical leakage, or fires that may result.

[0038] Meanwhile, through the first opening 111 and the second opening 121, part of the surface of the junction box 200 is in direct contact with the outside air, forming a heat exchange channel, which can effectively dissipate the heat of the junction box itself, thus achieving dual thermal protection for the power cord and the junction box.

[0039] In some embodiments, the cooktop also includes a fixing component for securely installing the junction box 200.

[0040] Junction box 200 is reliably mounted on bottom wall 110 of base housing 100 by means of a fixing component.

[0041] The fixing components provide stable support for the junction box 200, preventing it from shifting or loosening during transportation or daily use, and ensuring the long-term reliability of the electrical connection.

[0042] In some embodiments, the position of the junction box 200 relative to the opening is further optimized and defined in order to maximize heat dissipation.

[0043] Specifically, the vertical projection of the bottom surface of the junction box 200 is completely within the range of the first opening 111; at the same time, the horizontal projection of the side of the junction box 200 used to connect the external power cord is also completely within the range of the second opening 121.

[0044] This means that when viewed from directly below the bottom of the bottom shell 100, the entire bottom surface of the junction box 200 can be seen; when viewed from the side, the entire end side of the junction box 200 can be seen.

[0045] This unobstructed arrangement allows the bottom and sides of the junction box 200 to have the largest possible direct contact with the outside air, greatly promoting convective heat transfer and efficiently dissipating the heat generated by the junction box 200 during operation and the heat absorbed from the surrounding environment.

[0046] In some embodiments, an integrated design is carried out on the opening structure of the bottom case 100.

[0047] The first opening 111 and the second opening 121 are not two independent holes, but are interconnected and together form a continuous and integral opening at the corner where the bottom wall 110 and the side wall 120 of the bottom case 100 meet.

[0048] As Figure 5 shown, this opening is rectangular when viewed from above and also rectangular when viewed from the side, forming an L-shaped corner notch as a whole. Compared with two separate openings, this continuous L-shaped opening eliminates the partition wall between them, making the air circulation path smoother and not easily forming dead corners where heat accumulates, thus overall improving the heat dissipation efficiency.

[0049] In some embodiments, referring to Figure 8 , the specific form of the fixing component is an independent fixing base 300. [5]]

[0050] The fixing base 300 can be functionally divided into two parts: an installation part directly connected to the junction box 200, and a support part for fixing the entire fixing base 300 on the bottom wall 110 of the bottom case 100.

[0051] In some embodiments, the geometric configuration of the fixing base 300 is specifically described, as [0]] Figure 8 shown.

[0052] The installation part is specifically a horizontal top plate 310.

[0053] The support part includes two side plates 320 vertically extending downward from the two side edges of the top plate 310, and flanges 330 respectively formed by horizontally bending the bottom edges of the two side plates 320 outward. Overall, the cross-section of the fixing base 300 presents the shape of the Chinese character "ji".

[0054] The top plate 310 provides a flat installation platform for fixing the junction box 200. The two side plates 320 on both sides provide the vertical support height. <00~00151>

[0055] The bottom flanges 330 increase the contact area with the bottom wall 110 of the bottom case 100, and through the installation holes 331 opened thereon, fasteners 400 such as screws and rivets are used to firmly install the fixing base 300 on the bottom case 100.

[0056] This "ji" - shaped structure has excellent mechanical stability and can bear the weight of the junction box 200 and the external forces during the insertion and extraction of the power cord.

[0057] In other embodiments, the mounting base 300 may also have other structural forms. For example, it may consist of two independent L-shaped brackets, respectively fixed to both sides of the junction box 200. These variations also achieve the fixing function and all fall within the protection scope of this application.

[0058] In some embodiments, the material of the mounting base 300 and its heat dissipation function are specified.

[0059] The mounting base 300 is made of thermally conductive material. Furthermore, as... Figure 10 and Figure 11 As shown, after installation, at least a portion of the mounting bracket 300, particularly the portion near the end side 220 of the junction box 200, extends to the second opening 121 on the base housing 100, preferably abutting against the side wall 120 of the base housing 100. The junction box remains a certain distance from the second opening 121, thus the mounting bracket 300 is partially exposed to the external environment of the base housing 100.

[0060] Therefore, the mounting bracket 300 can achieve a dual function: it is both a structural fastener and a functional heat dissipation component.

[0061] When the cooktop is in operation, the heat inside the bottom shell 100 is conducted through the air to the junction box 200 and the mounting base 300. The mounting base 300, as an excellent heat conductor, quickly conducts this heat along its body to the exposed parts, and then efficiently dissipates the heat through convection and radiation with the outside cold air. This constitutes an active cooling system that continuously transfers heat from around the junction box 200 to the outside of the bottom shell.

[0062] In some embodiments, the thermally conductive material is preferably a metallic material, such as a 0.6 mm thick galvanized steel sheet that has good thermal conductivity and is cost-effective.

[0063] In other embodiments, to achieve optimal heat dissipation performance, the mounting base 300 can be made of materials with higher thermal conductivity, such as aluminum alloy or pure copper. Furthermore, to enhance corrosion resistance in specific environments (such as a humid kitchen), stainless steel can also be used. Besides metals, some high-performance thermally conductive non-metallic materials, such as graphene composites and thermally conductive engineering plastics, can also be used to manufacture the mounting base 300.

[0064] In some embodiments, such as Figure 9 The structural layout of the junction box 200 itself is described as shown.

[0065] The end of the junction box 200 facing the second opening 121, that is, the end exposed outside the bottom shell 100, is provided with a plug-in portion 210 for plugging in an external power cord.

[0066] At the other end of the junction box 200, away from the second opening 121, there are pins for connecting to the internal electrical system of the stove. Furthermore, the end with the pins extends from the opening end of the mounting base 300, reserving operating space for connecting the internal wiring harness.

[0067] This layout, which separates the internal and external circuits, ensures that the access to external power and the connection of internal circuits do not interfere with each other, resulting in clear wiring and high safety and reliability.

[0068] In some embodiments, in order to further simplify the assembly process and improve production efficiency, a detachable snap-fit ​​structure is used to connect the junction box 200 and the mounting base 300.

[0069] Specifically, such as Figure 8 and Figure 9 As shown, the snap-fit ​​structure may include at least one elastic snap-fit ​​220 integrally injection molded on the upper surface of the junction box 200, and a snap-fit ​​groove 311 formed by stamping on the top plate 310 of the fixing base 300, corresponding to the position and shape of the snap-fit ​​220. The snap-fit ​​220 is preferably designed as an inverted wedge-shaped structure with a certain degree of elasticity.

[0070] During pre-assembly on the production line, the worker simply aligns the junction box 200 with the mounting base 300 and presses it down gently. The latch 220 will then elastically deform, cross the edge of the slot 311, and automatically spring back into place. The entire process requires no tools and can be operated with one hand, greatly saving assembly time.

[0071] In other embodiments, the snap-fit ​​structure can take various forms. For example, it can be a rotation-locking snap-fit ​​or a slide-in fixing dovetail groove structure. Furthermore, besides snap-fits, other detachable connection methods can be used, such as providing studs on the top plate of the mounting base 300, providing through holes on the junction box, and securing it with nuts. These methods all allow for pre-assembly of the junction box and the mounting base 300.

[0072] In some embodiments, the junction box 200 is further provided with a positioning buckle 230 for pre-positioning. The positioning buckle 230 is preferably L-shaped and can cooperate with the positioning groove 312 on the fixing seat 300 to provide pre-positioning before the buckle 220 and the groove 311 are engaged.

[0073] In some embodiments, in order to further improve the connection reliability between the junction box and the mounting base 300 and ensure structural stability during transportation, screws 500 are used to form a hard connection with the junction box 200 through two screw holes on the upper surface of the mounting base 300, thereby achieving secondary fixation and effectively preventing component separation caused by vibration.

[0074] In some embodiments, such as Figure 11As shown, the junction box 200 is not a single unit, but rather consists of a box body with an opening at the bottom and a cover plate 240 for closing its bottom. The cover plate 240 is detachably connected to the box body, such as by fastening with screws 600. When the two are fastened together, they enclose and define a sealed cavity for accommodating internal electrical connectors (such as terminal blocks, pin bases, etc.).

[0075] This split design greatly simplifies internal wiring. Operators can easily connect the internal wiring harness to the pins with the box fully open, providing ample operating space. After all internal wiring is completed, the cover can be closed to form a fully insulated safety structure that prevents accidental contact with internal live parts.

[0076] In some embodiments, the junction box 200's body and cover are preferably injection molded from engineering plastics with good electrical insulation and heat resistance properties.

[0077] For example, PA6 (polyamide 6) material reinforced with glass fiber can be used. This material can withstand temperatures up to 122℃, which is more than 60% higher than the heat resistance of PPO, PC and other materials commonly used in traditional junction boxes (which typically have a temperature resistance of around 90℃). This provides a solid material guarantee for the electrical safety of the stove under extreme working conditions.

[0078] In some embodiments, the junction box has a compact overall structural size, such as 78mm*60mm*22mm, which is particularly suitable for compact or ultra-thin cooktops with limited internal space (e.g., bottom shell mounting area depth ≤40mm).

[0079] The installation process of the junction box 200 of this utility model has been optimized and is divided into three main steps: pre-assembly, electrical connection and final fixing.

[0080] Step 1: Pre-assembly. Junction box 200 is pre-assembled with mounting base 300 through its clips 220 and positioning clips 230. Then, screws 500 are used to form a rigid connection with junction box through two screw holes on the upper surface of mounting base 300, achieving secondary fixation.

[0081] Step 2: Electrical Connection. Insert the external power cord into the connector 210 of the junction box 200 to ensure a reliable electrical connection. By installing the bottom cover, a fully enclosed junction box assembly is formed, achieving all-around insulation and completely eliminating the risk of electric shock.

[0082] Step 3: Formal Assembly. Insert the pre-wired and sealed assembly into the L-shaped opening at the bottom of the cooktop. Once the folded edge of the mounting bracket 300 is flush with the inner wall of the bottom shell 100, use screws to securely fasten the entire assembly to the bottom shell.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

[0084] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A stove, comprising: Bottom shell; The panel is mounted on the bottom shell; The burner assembly is fixed to the panel. The electrical system includes at least an ignition device for igniting the burner assembly; A junction box is disposed inside the bottom shell, and the junction box is used to connect an external power supply line and be electrically connected to the electrical system; Its features are, The bottom wall and side wall of the bottom shell are respectively provided with a first opening and a second opening; The bottom surface of the junction box is opposite to the first opening, and the side of the junction box used to connect one end of the external power cord is opposite to the second opening. Furthermore, the end of the junction box used to connect the external power cord is configured such that when connected to the external power cord, its plug-in portion is located outside the bottom shell.

2. Hob according to claim 1, characterized in that The stove also includes a fixing component, and the junction box is installed on the bottom wall of the bottom shell through the fixing component.

3. Hob according to claim 2, characterized in that The bottom projection of the junction box is located within the first opening; the side projection of the junction box is located within the second opening.

4. The cooktop of claim 1, wherein The first opening extends downward to the bottom surface of the bottom shell and communicates with the second opening, together forming a continuous opening located at the junction of the bottom wall and the side wall.

5. Hob according to any of claims 1-4, characterized in that The fixing component includes a fixing base, the fixing base comprising: The mounting part is connected to the junction box; A support portion, which is supported on the bottom wall of the bottom shell and fixedly connected to the bottom shell.

6. The stove according to claim 5, characterized in that, The mounting section includes a top plate; The support includes side plates extending along both sides of the top plate and folded edges formed by bending the bottom edges of the side plates; the folded edges are provided with mounting holes; fasteners are used to fix the folded edges to the bottom wall of the bottom shell by passing through the mounting holes.

7. Hob according to claim 5, characterized in that The mounting base is made of a thermally conductive material, and at least a portion of the mounting base extends to the second opening and is exposed to the outside of the bottom shell.

8. The cooktop of claim 5, wherein, The junction box has a plug-in portion for inserting the external power cord at one end facing the second opening; the junction box is used to set pins at one end away from the second opening, and the junction box extends out from the mounting base at one end away from the second opening.

9. The cooktop of claim 5, wherein, The mounting base and the junction box are detachably connected by a snap-fit ​​structure. The buckle structure includes at least one buckle on the junction box and a corresponding slot on the mounting base.

10. Hob according to any one of claims 1-4, characterized in that, The junction box includes a box body and a cover plate disposed at the bottom of the box body; the cover plate is detachably connected to the box body to close the box body, and the cover plate and the box body together define a cavity for accommodating electrical connectors.

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