Cooking apparatus

Abstract

This cooking apparatus comprises: a case; a cooking plate; an induction heating coil; a first circuit board configured to remove noise included in a current supplied from an external power source and to reduce noise; a second circuit board configured to drive the induction heating coil; and a bracket which is coupleable to the case so as to be disposed between the first circuit board and the second circuit board, and configured to prevent electromagnetic interference (EMI) and to reduce electromagnetic interference, wherein the bracket includes a base configured to be disposed on the bottom of the case and a partition extending upward from the base, and the case includes a first coupling portion provided to fix the corner of the base while the bracket is coupled to the case and a second coupling portion provided to support the partition while the bracket is coupled to the case.

Description

Cooking appliances

[0001] The present disclosure relates to a cooking appliance having an improved structure.

[0002] As an example of a cooking device, an induction heating device heats and cooks food using the principle of induction heating. The induction heating device is equipped with a cooking plate on which a cooking vessel is placed and a working coil that generates a magnetic field when an electric current is applied.

[0003] When current is applied to the working coil and a magnetic field is generated, a secondary current is induced in the cooking vessel, and Joule heat is generated due to the resistance component of the cooking vessel itself. Therefore, the cooking vessel is heated by the high-frequency current, and the food contained in the cooking vessel is cooked.

[0004] Since this induction heating device utilizes the cooking vessel itself as a heat source, it has the advantages of a higher heat transfer rate compared to gas stoves or kerosene stoves that heat the vessel using the combustion heat generated by burning fossil fuels, as well as the absence of harmful gas generation and the risk of fire.

[0005] The embodiments of the present disclosure provide a cooking appliance with improved assembly and productivity.

[0006] Embodiments of the present disclosure provide a cooking appliance comprising a bracket that can be attached to a case without a separate tool or separate fastening member (e.g., screw, rivet, etc.).

[0007] Embodiments of the present disclosure provide a cooking appliance comprising a bracket capable of preventing and / or reducing Electro Magnetic Interference (EMI).

[0008] The technical problems to be solved in this document are not limited to those mentioned above, and other unmentioned technical problems will be clearly understood by those skilled in the art to which this invention belongs from the description below.

[0009] A cooking device according to an exemplary embodiment of the present disclosure may include: a case; a cooking plate mountable on the case; an induction heating coil disposed inside the case; a first circuit board disposed inside the case and configured to remove noise included in a current supplied from an external power source and configured to reduce noise; a second circuit board disposed inside the case and configured to drive the induction heating coil; and a bracket coupled to the case to be disposed between the first circuit board and the second circuit board, configured to prevent electromagnetic interference (EMI) and configured to reduce electromagnetic interference. The bracket may include a base configured to be disposed on the bottom of the case and a partition extending upward from the base. The case may include a first coupling portion formed on the bottom of the case and provided to fix a corner of the base while the bracket is coupled to the case. The case may include a second coupling portion formed on the bottom of the case and provided to support the partition while the bracket is coupled to the case.

[0010] A cooking device according to an exemplary embodiment of the present disclosure may include: a case; an induction heating coil disposed inside the case; a first circuit board disposed inside the case and including a filter coil; a second circuit board disposed inside the case so as to be spaced apart from the first circuit board along a first direction and including a wire configured to be connected to the induction heating coil; a partition provided to extend along a second direction intersecting the first direction between the first circuit board and the second circuit board; and a base protruding from the partition in the first direction and including an insertion hole. The case may include a coupling portion formed on the bottom of the case and insertable into the insertion hole. The coupling portion may include a first rib portion disposed within the insertion hole and configured to restrict the base from moving along the second direction. The coupling portion may include a second rib portion extending from the first rib portion and disposed above the base to restrict the base from moving along a vertical direction.

[0011] FIG. 1 is a perspective view of a cooking device according to one embodiment of the present disclosure.

[0012] FIG. 2 is an exploded view of a cooking device according to one embodiment of the present disclosure.

[0013] FIG. 3 is a diagram illustrating the principle of a cooking device according to one embodiment of the present disclosure heating a cooking container.

[0014] FIG. 4 is a control block diagram of a cooking device according to one embodiment of the present disclosure.

[0015] FIG. 5 is a circuit diagram of a cooking device according to one embodiment of the present disclosure.

[0016] FIG. 6 is a perspective view of some components of a cooking appliance according to one embodiment of the present disclosure.

[0017] FIG. 7 is a plan view of some components of a cooking appliance according to one embodiment of the present disclosure.

[0018] FIG. 8 is a disassembled drawing of the case and bracket of a cooking appliance according to one embodiment of the present disclosure.

[0019] FIG. 9 is a diagram showing the case and bracket of a cooking device according to one embodiment of the present disclosure disassembled and illustrated in a direction different from FIG. 8.

[0020] FIG. 10 is a perspective view of a bracket according to one embodiment of the present disclosure.

[0021] Figure 11 is an enlarged view of part A shown in Figure 10.

[0022] FIG. 12 is a cutaway perspective view of a case according to one embodiment of the present disclosure.

[0023] Figure 13 is an enlarged view of part B shown in Figure 12.

[0024] Figure 14 is an enlarged view of part C shown in Figure 12.

[0025] Figure 15 is an enlarged view of part D shown in Figure 12.

[0026] Figure 16 is an enlarged view of part E shown in Figure 12.

[0027] FIG. 17 is a drawing showing the assembly process of a case and a bracket according to one embodiment of the present disclosure.

[0028] FIG. 18 is a cross-sectional view along the line I-I' shown in FIG. 17.

[0029] FIG. 19 is a drawing showing the assembly process of a case and a bracket according to one embodiment of the present disclosure.

[0030] FIG. 20 is a cross-sectional view along the line II-II' shown in FIG. 19.

[0031] FIG. 21 is a drawing showing the assembly process of a case and a bracket according to one embodiment of the present disclosure.

[0032] FIG. 22 is a cross-sectional view along the line III-III' indicated in FIG. 21.

[0033] Figure 23 is an enlarged view of part F shown in Figure 21.

[0034] Fig. 24 is an enlarged view of part G shown in Fig. 21.

[0035] FIG. 25 is a cross-sectional view of a part of a case according to one embodiment of the present disclosure.

[0036] FIG. 26 is a cross-sectional view showing a state in which a bracket is coupled to the case illustrated in FIG. 25 according to one embodiment of the present disclosure.

[0037] FIG. 27 is a cross-sectional view of a part of a case according to one embodiment of the present disclosure.

[0038] FIG. 28 is a cross-sectional view showing a state in which a bracket is coupled to the case illustrated in FIG. 27 according to one embodiment of the present disclosure.

[0039] FIG. 29 is a cross-sectional view of a part of a case according to one embodiment of the present disclosure.

[0040] FIG. 30 is a cross-sectional view showing a state in which a bracket is coupled to the case illustrated in FIG. 29 according to one embodiment of the present disclosure.

[0041] The various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of said embodiments.

[0042] In relation to the description of the drawings, similar reference numerals may be used for similar or related components.

[0043] The singular form of the noun corresponding to the item may include one or multiple items, unless the relevant context clearly indicates otherwise.

[0044] In this document, each of the phrases such as "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C", and "at least one of A, B, or C" may include any one of the items listed together in the corresponding phrase, or all possible combinations thereof.

[0045] The term "and / or" includes a combination of multiple related described components or any of the multiple related described components.

[0046] The terms "part," "module," and "component" may be implemented in hardware or software. Depending on the embodiments, a plurality of "parts," "modules," and "components" may be implemented as a single component, or a single "part," "module," or "component" may include a plurality of components.

[0047] Terms such as "first," "second," or "first" or "second" may be used simply to distinguish a component from another component and do not limit the components in other aspects (e.g., importance or order).

[0048] Where any (e.g., 1st) component is referred to as "coupled" or "connected" to another (e.g., 2nd) component, with or without the terms "functionally" or "communicationly," it means that said any component may be connected to said other component directly (e.g., via a wire), wirelessly, or through a third component.

[0049] Terms such as "include" or "have" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in this document, and do not preclude the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0050] When it is said that a component is "connected," "combined," "supported," or "in contact" with another component, this includes not only cases where the components are directly connected, combined, supported, or in contact, but also cases where they are indirectly connected, combined, supported, or in contact through a third component.

[0051] When it is said that a component is located "on" another component, this includes not only cases where one component is in contact with the other, but also cases where another component exists between the two components.

[0052] Meanwhile, terms such as "front," "rear," "left," "right," "up," and "down" used in the following description are defined based on the drawings, and the shape and position of each component are not limited by these terms. For example, "front" and "rear" may each be defined based on the X-axis shown in the drawings. For example, "left" and "right" may each be defined based on the Y-axis shown in the drawings. For example, "up" and "down" may each be defined based on the Z-axis shown in the drawings.

[0053] Embodiments according to the present disclosure will be described in detail below with reference to the attached drawings.

[0054] FIG. 1 is a perspective view of a cooking device according to one embodiment of the present disclosure. FIG. 2 is an exploded view of a cooking device according to one embodiment of the present disclosure. FIG. 3 is a diagram showing the principle of heating a cooking container by a cooking device according to one embodiment of the present disclosure.

[0055] Referring to FIGS. 1 and 2, the cooking device (1) may include a case (10). The case (10) may accommodate various parts constituting the cooking device (1). The case (10) may form the exterior of at least a part of the cooking device (1). The case (10) may be referred to as a housing (10), a main body (10), etc.

[0056] For example, the case (10) may include a shape with an open top. The case (10) may include a box shape with an open top. The case (10) may include a bottom (11) and a side wall (12) extending upward from the bottom (11). The case (10) may include a front wall (12a), a rear wall (12b), a right wall (12c), and a left wall (12d). The case (10) may form a receiving space (10a). The receiving space (10a) may be defined by the bottom (11) and the side wall (12). An induction heating coil (30), a fan (60), a heat sink (70), circuit boards (80, 90), a bracket (100), etc., which will be described later, may be placed in the receiving space (10a).

[0057] The case (10) may include an intake port (13). External air may flow into the case (10) through the intake port (13). The air introduced into the case (10) through the intake port (13) may cool various components housed in the case (10). For example, the intake port (13) may be formed in the bottom (11) of the case (10).

[0058] The case (10) may include an outlet (14). Air inside the case (10) may flow out of the case (10) through the outlet (14). Air that has cooled various parts housed in the case (10) may be discharged out of the case (10) through the outlet (14). For example, the outlet (14) may be formed on the side wall (12) of the case (10).

[0059] The cooking device (1) may include a cooking plate (20). A cooking vessel (25, see FIG. 3) may be placed on the cooking plate (20). The cooking plate (20) may support the cooking vessel (25). The cooking plate (20) may be attached to a case (10). The cooking plate (20) may cover the open top of the case (10). The cooking plate (20) is mountable on the case (10). The cooking plate (20) may form the upper surface of the cooking device (1). For example, the cooking plate (20) may have a roughly flat shape. For example, the cooking plate (20) may include tempered glass, such as ceramic glass, so as not to be easily broken. For example, a guide mark may be formed on the cooking plate (20) to guide the user to the location where the cooking vessel (25) can be heated.

[0060] The cooking appliance (1) may include a user interface (50). The user interface (50) may receive control commands from a user and display operation information of the cooking appliance (1) to the user. For example, the user interface (50) may be implemented on a cooking plate (20). However, the present disclosure is not limited thereto, and the location of the user interface (50) is not limited. For example, the user interface (50) may be provided on a case (10).

[0061] The cooking device (1) may include an induction heating coil (30). The induction heating coil (30) may be placed inside the case (10). The induction heating coil (30) may be placed below the cooking plate (20). The induction heating coil (30) may be configured to heat a cooking vessel (25) placed on top of the cooking plate (20). The induction heating coil (30) may generate a magnetic field to heat the cooking vessel (25). The induction heating coil (30) may be referred to as a working coil (30), a heating coil (30), a heating unit (30), a heating module (30), a heating device (30), etc.

[0062] In FIG. 2, the induction heating coil (30) is shown as having four, but the number of induction heating coils (30) is not limited. The induction heating coil (30) may be provided as one. The induction heating coil (30) may be provided as two or more multiple coils.

[0063] For example, with reference to FIG. 3, the principle of heating a cooking vessel (25) is explained. When a driving current is supplied to an induction heating coil (30), a magnetic field (M) can be induced around the induction heating coil (30). When an alternating current, which changes in magnitude and direction over time, is supplied to the induction heating coil (30), a magnetic field (M) that changes in magnitude and direction over time can be induced around the induction heating coil (30). The magnetic field (M) around the induction heating coil (30) can pass through the cooking plate (20) and reach the cooking vessel (25) placed on the cooking plate (20). Due to the magnetic field (M) that changes in magnitude and direction over time, an eddy current (EI) rotating around the magnetic field (M) can be generated in the cooking vessel (25). The phenomenon in which an eddy current is generated due to a magnetic field (M) that changes over time is called the electromagnetic induction phenomenon. Due to eddy currents (EI), electrical resistance heat may be generated in the cooking container (25). Electrical resistance heat is heat generated in a resistor when current flows through it, and is also called Joule heat. The cooking container (25) is heated by this electrical resistance heat, and the food contained in the cooking container (25) can be heated.

[0064] The cooking device (1) may include a support plate (40). The support plate (40) may be provided to support an induction heating coil (30). The support plate (40) may be positioned between the bottom (11) of the case (10) and the cooking assembly (20). The support plate (40) may be detachably coupled to the side wall (12) of the case (10). For example, the support plate (40) may have a roughly flat shape.

[0065] The support plate (40) may include a material capable of magnetic shielding. The support plate (40) can block the magnetic field formed in the induction heating coil (30) from leaking to the first circuit board (80) and / or the second circuit board (90) described later. Thus, the first circuit board (80) and / or the second circuit board (90) can be arranged so as not to be affected by the induced magnetic field by the support plate (40).

[0066] The cooking device (1) may include a fan (60). The fan (60) may be placed inside the case (10). The fan (60) may be provided to lower the temperature inside the case (10) by forcing air flow. The fan (60) may be provided to lower the temperature of at least one circuit board (80 and / or 90). The fan (60) may operate to draw in air from outside the cooking device (1) through the intake port (13). For example, the air intake side of the fan (60) may be positioned to face the intake port (13). The fan (60) may operate to discharge air from inside the cooking device (1) through the exhaust port (14). For example, the air discharge side of the fan (60) may be positioned to face the heat sink (70) to be described later. External air introduced into the case (10) by the fan (60) can be discharged to the outside of the case (10) after cooling at least one circuit board (80 and / or 90) housed inside the case (10).

[0067] In FIG. 2, the fan (60) is shown as having two fans, but the number of fans (60) is not limited. One fan (60) may be provided. Three or more fans (60) may be provided.

[0068] For example, an axial fan or a cross-flow fan may be applied to the fan (60). However, as long as the fan (60) can draw in air from outside the case (10) and discharge air inside the case (10) back to outside the case (10), the type of fan (60) is not limited to the examples described above.

[0069] The cooking device (1) may include a heat sink (70). The heat sink (70) may be placed inside the case (10). For example, the heat sink (70) may be placed adjacent to the side wall (12). The heat sink (70) may be provided to absorb and release heat. The heat sink (70) may be provided to receive heat from at least one circuit board (80 and / or 90) and to release the received heat. The heat sink (70) may form a cooling airflow inside the case (10) together with the fan (60). This prevents and / or suppresses overheating inside the case (10). The heat sink (70) may include a material with high thermal conductivity. For example, the heat sink (70) may include at least one of aluminum or copper.

[0070] In FIG. 2, the heat sink (70) is shown as having two, but the number of heat sinks (70) is not limited. One heat sink (70) may be provided. Three or more heat sinks (70) may be provided.

[0071] The cooking device (1) may include a first circuit board (80). The first circuit board (80) may be placed inside a case (10). For example, the first circuit board (80) may be placed on the bottom (11) of the case (10). The first circuit board (80) may be configured to remove and / or reduce noise contained in the current supplied from an external power source. For example, the first circuit board (80) may include a filter circuit (220, see FIG. 4 and FIG. 5).

[0072] In FIG. 2, the first circuit board (80) is shown as one, but the present disclosure is not limited thereto and there is no limitation on the number of first circuit boards (80).

[0073] The cooking device (1) may include a second circuit board (90). The second circuit board (90) may be placed inside the case (10). For example, the second circuit board (90) may be placed on the bottom (11) of the case (10). The second circuit board (90) may be configured to drive an induction heating coil. The second circuit board (90) may be configured to apply a driving current to the induction heating coil. The second circuit board (90) may include a circuit for operating the induction heating coil by receiving current from the first circuit board (80). For example, the second circuit board (90) may include a rectifier circuit (230, see FIG. 4 and FIG. 5) and an inverter circuit (240, see FIG. 4 and FIG. 5).

[0074] In FIG. 2, the second circuit board (90) is shown as having two, but the present disclosure is not limited thereto and there is no limitation on the number of second circuit boards (90).

[0075] The cooking device (1) may include a bracket (100). The bracket (100) may be placed inside a case (10). The bracket (100) may be provided to prevent and / or reduce electromagnetic interference between circuit boards (80, 90). The bracket (100) may be referred to as a frame (100), a panel (100), etc.

[0076] In FIG. 2, the bracket (100) is shown as having two brackets, but the present disclosure is not limited thereto. The number of brackets (100) may vary depending on the number and / or arrangement of circuit boards (80, 90).

[0077] A detailed description of the bracket (100) will be provided later.

[0078] FIG. 4 is a control block diagram of a cooking device according to one embodiment of the present disclosure.

[0079] Referring to FIG. 4, a cooking device (1) according to one embodiment of the present disclosure may include a power supply circuit (210), a filter circuit (220), a rectifier circuit (230), an inverter circuit (240), a user interface (50), a fan (60), and a control unit (200).

[0080] The power supply circuit (210) may be configured to receive AC power from an external power source. For example, the power supply circuit (210) may receive external AC power and convert it into three-phase AC power. The power supply circuit (210) may be configured to supply the applied AC power to a rectifier circuit (230) and an inverter circuit (240).

[0081] The filter circuit (220) can block high-frequency noise included in the AC power supplied from an external power source through the power supply circuit (210) and allow AC voltage and AC current of a predetermined frequency to pass through. For example, the filter circuit (220) may include at least one of a common mode filter, a normal mode filter, an X-CAP (across the line capacitor), a Y-CAP (line bypass capacitor), and a varistor. The filter circuit (220) may be implemented on the first circuit board (80).

[0082] The rectifier circuit (230) can convert AC power into DC power. The rectifier circuit (230) can convert an AC voltage whose magnitude and polarity (positive voltage or negative voltage) change over time into a DC voltage with constant magnitude and polarity. The rectifier circuit (230) can convert an AC current whose magnitude and direction (positive current or negative current) change over time into a DC current with constant magnitude. The rectifier circuit (230) can be implemented on the second circuit board (90).

[0083] The inverter circuit (240) can receive direct current power from the rectifier circuit (230). The inverter circuit (240) can supply driving current to the induction heating coil (30) or cut off the driving current supplied to the induction heating coil (30). As the inverter circuit (240) supplies driving current to the induction heating coil (30), the cooking vessel placed on the cooking plate (20) can be heated. The inverter circuit (240) can be implemented on the second circuit board (90).

[0084] The user interface (50) can enable the user and the cooking appliance (1) to interact. The control unit (200) processes user input received through the user interface (50) and can output information related to the cooking appliance (1) through the user interface (50).

[0085] The user interface (50) may include at least one output interface (52) and at least one input interface (51).

[0086] At least one output interface (52) can transmit various information related to the operation of the cooking appliance (1) to the user by generating sensory information. For example, at least one output interface (52) can transmit information related to the settings of the cooking appliance (1) and the operating time of the cooking appliance (1) to the user. Information regarding the operation of the cooking appliance (1) can be output via a display, an indicator, and / or voice, etc. At least one output interface (52) may include, for example, a Liquid Crystal Display (LCD) panel, an indicator, a Light Emitting Diode (LED) panel, a speaker, etc. At least one output interface (52) can output sensory information related to the control of the cooking appliance (1) (e.g., visual information, auditory information, etc.).

[0087] At least one input interface (51) can convert sensory information received from a user into an electrical signal. At least one input interface (51) may include an input device (e.g., a button, a knob, etc.) for turning on the power of the cooking appliance (1). At least one input interface (51) may include an input device for controlling the driving current supplied to the induction heating coil (30). Each input device may include a visual indicator (e.g., text, an icon, etc.) that can indicate its function. At least one input interface (51) may include, for example, a tact switch, a push switch, a slide switch, a toggle switch, a micro switch, a touch switch, a touch pad, a touch screen, a jog dial, and / or a microphone, etc. In this disclosure, 'button' may be replaced with a UI element (User Interface Element), a tact switch, a push switch, a slide switch, a toggle switch, a micro switch, a touch switch, a touch pad, a touch screen, a jog dial, and / or a microphone, etc.

[0088] The fan (60) can operate to maintain the temperature inside the case (10) appropriately. The control unit (200) can be configured to control the on / off of the fan (60), the number of rotations of the fan (60), the direction of rotation of the fan (60), etc.

[0089] The control unit (200) can control various components of the cooking device (1).

[0090] The control unit (200) may include at least one processor (201) for controlling the operation of the cooking device (1) and at least one memory (202) for storing a program and data for controlling the operation of the cooking device (1).

[0091] At least one memory (202) can store data necessary for various embodiments. Depending on the purpose of data storage, at least one memory (202) may be implemented in the form of a memory embedded in the cooking device (1) or in the form of a memory that can be attached to and detached from the cooking device (1). For example, data for operating the cooking device (1) may be stored in a memory embedded in the cooking device (1), and data for the expansion function of the cooking device (1) may be stored in a memory that can be attached to and detached from the cooking device (1). For example, at least one memory (202) may be implemented in the form of a volatile memory (e.g., DRAM (dynamic RAM), SRAM (static RAM), or SDRAM (synchronous dynamic RAM), etc.), a non-volatile memory (e.g., OTPROM (one time programmable ROM), PROM (programmable ROM), EPROM (erasable and programmable ROM), EEPROM (electrically erasable and programmable ROM), mask ROM, flash ROM, flash memory (e.g., NAND flash or NOR flash), etc.), a hard drive, or a solid state drive (SSD), a memory card (e.g., CF (compact flash), SD (secure digital), Micro-SD (micro secure digital), Mini-SD (mini secure digital), xD (extreme digital), MMC (multi-media card), etc.), or an external memory connectable to a USB port (e.g., a USB memory).

[0092] At least one processor (201) can control the overall operation of the cooking appliance (1). Specifically, at least one processor (201) can control the overall operation of the cooking appliance (1) by being electrically connected to each component of the cooking appliance (1). At least one processor (201) can control the overall operation of the cooking appliance (1) by being electrically connected to the memory (202). The processor (201) may be composed of one or more processors. For example, at least one processor (201) may include one or more of a CPU (Central Processing Unit), GPU (Graphics Processing Unit), APU (Accelerated Processing Unit), MIC (Many Integrated Core), DSP (Digital Signal Processor), NPU (Neural Processing Unit), hardware accelerator, or machine learning accelerator.

[0093] FIG. 5 is a circuit diagram of a cooking device according to one embodiment of the present disclosure.

[0094] Referring to FIG. 5, a cooking device (1) according to one embodiment of the present disclosure may include a power supply circuit (210), a filter circuit (220), a rectifier circuit (230), an inverter circuit (240), a control unit (200), and an induction heating coil (30).

[0095] The power supply circuit (210) may be configured to receive AC power from an external power source. The filter circuit (220) may be configured to block high-frequency noise contained in the AC power. The rectifier circuit (230) may convert the AC power, from which high-frequency noise has been blocked, into DC power. The power rectified through the rectifier circuit (230) may be applied to the inverter circuit (240). The inverter circuit (240) may be configured to be electrically connected to the induction heating coil (30) to drive the induction heating coil (30).

[0096] For example, the rectifier circuit (230) may include a bridge diode. For example, the rectifier circuit (230) may include four diodes. The diodes may form diode pairs connected in series of two, and the two diode pairs may be connected in parallel with each other. The bridge diodes can convert an alternating voltage with changing polarity over time into a voltage with constant polarity, and convert an alternating current with changing direction over time into a current with constant direction. For example, the rectifier circuit (230) may include a capacitor (C1) connected in parallel with at least one diode.

[0097] For example, the inverter circuit (240) may include a pair of switch elements (Q1, Q2). For example, the inverter circuit (240) may include a pair of resonant capacitors (C2, C3). A pair of switch elements (Q1, Q2) may be connected in parallel with a pair of resonant capacitors (C2, C3). For example, one end of the two ends of the induction heating coil (30) may be connected to a node where a pair of switch elements (Q1, Q2) are connected in series. For example, the other end of the two ends of the induction heating coil (30) may be connected to a node where a pair of resonant capacitors (C2, C3) are connected in series.

[0098] A pair of switching elements (Q1, Q2) may include a first switching element (Q1) and a second switching element (Q2). The first switching element (Q1) may be closed or opened according to the control of the control unit (200). The second switching element (Q2) may be closed or opened according to the control of the control unit (200).

[0099] A pair of resonant capacitors (C2, C3) may include a first resonant capacitor (C2) and a second resonant capacitor (C3). The first resonant capacitor (C2) and the second resonant capacitor (C3) may be connected in series between a positive line and a negative line.

[0100] Depending on the opening and closing of the first switching element (Q1) and the second switching element (Q2), current may be output from the first resonant capacitor (C2) and / or the second resonant capacitor (C3) to the induction heating coil (30), or current may be input from the induction heating coil (30) to the first resonant capacitor (C2) and / or the second resonant capacitor (C3).

[0101] The inverter circuit (240) can control the current supplied to the induction heating coil (30). The magnitude and direction of the current flowing to the induction heating coil (30) can be changed depending on the opening and closing of the first switching element (Q1) and the second switching element (Q2) included in the inverter circuit (240).

[0102] For example, the control unit (200) can determine the strength of the magnetic field output by the induction heating coil (30) by determining the opening and closing cycle of the first switching element (Q1) and the second switching element (Q2) based on a user command input through the user interface (50, see FIG. 4).

[0103] FIG. 6 is a perspective view of some components of a cooking appliance according to one embodiment of the present disclosure. FIG. 7 is a plan view of some components of a cooking appliance according to one embodiment of the present disclosure.

[0104] Referring to FIGS. 6 and 7, a first circuit board (80) and a second circuit board (90) may be placed inside a case (10). The first circuit board (80) and the second circuit board (90) may be spaced apart from each other along a first direction (D1). The first circuit board (80) and the second circuit board (90) may be arranged along the first direction (D1). For example, the first direction (D1) may include an approximately horizontal direction (Y direction).

[0105] For example, a first circuit board (80) may be placed between two second circuit boards (90). One second circuit board (90a) may be placed to the right of the first circuit board (80), and another second circuit board (90b) may be placed to the left of the first circuit board (80). The second circuit board (90a) and the second circuit board (90b) may perform substantially the same function, differing only in their placement. The description of the second circuit board (90) may apply to both the second circuit board (90a) and the second circuit board (90b).

[0106] The first circuit board (80) may include a filter coil (81). The filter coil (81) may be configured to limit current of a specific frequency. The filter coil (81) may be configured to block the passage of high-frequency noise. The filter coil (81) may be configured as a component of the filter circuit (220).

[0107] The second circuit board (90) may include a wire (91). The wire (91) may be connected to an induction heating coil (30). The wire (91) may connect the inverter circuit (240) and the induction heating coil (30). The second circuit board (90) may supply driving current to the induction heating coil (30) through the wire (91).

[0108] A bracket (100) may be placed between a first circuit board (80) and a second circuit board (90). A bracket (100) may be placed between a filter coil (81) and a wire (91). A bracket (100) may be provided to partition a portion of the receiving space (10a) of a case (10). A bracket (100) may be configured to prevent and / or reduce EMI. A bracket (100) may be configured to prevent and / or reduce electromagnetic interference between a filter coil (81) and a wire (91). As an example, the bracket (100) may include a metal material.

[0109] The bracket (100) may include a shape that extends approximately along a second direction (D2). The second direction (D2) may be a direction that intersects the first direction (D1). For example, the second direction (D2) may include an approximately forward-backward direction (X direction).

[0110] For example, a cooking device (1) may include two brackets (100). One bracket (100a) may be positioned between a first circuit board (80) and a second circuit board (90a), and the other bracket (100b) may be positioned between the first circuit board (80) and the other second circuit board (90b). The bracket (100a) and the bracket (100b) may perform substantially the same function, differing only in their placement. The description of the bracket (100) may apply to both the bracket (100a) and the bracket (100b). However, the present disclosure is not limited to the examples described above.

[0111] Generally, a cooking appliance may include an electronic component for removing noise contained in the current supplied from the outside (hereinafter referred to as the "first component") and an electronic component for providing driving current to an induction heating coil (hereinafter referred to as the "second component"). To prevent electromagnetic interference between the first component and the second component, sufficient space may be secured between the first component and the second component. However, to improve the performance of the cooking appliance, the first component and the second component may be enlarged, and the space between the first component and the second component may be narrowed. In such cases, it is difficult for the cooking appliance to satisfy EMI standards.

[0112] According to the present disclosure, a cooking device (1) may include a bracket (100) disposed between a first circuit board (80) and a second circuit board (90). The bracket (100) can prevent and / or reduce electromagnetic interference that may occur between the first circuit board (80) and the second circuit board (90). Thus, even if the size of the first circuit board (80) and the second circuit board (90) is increased to improve the performance of the cooking device (1), the cooking device (1) can sufficiently satisfy EMI standards.

[0113] FIG. 8 is a disassembled view of the case and bracket of a cooking appliance according to one embodiment of the present disclosure. FIG. 9 is a disassembled view of the case and bracket of a cooking appliance according to one embodiment of the present disclosure, shown in a direction different from FIG. 8.

[0114] Referring to FIGS. 8 and 9, the bracket (100) may be configured to be detachably coupleable to the case (10). The bracket (100) may be configured to be detachably mountable to the case (10). As the bracket (100) is assembled to the case (10), it may be positioned between the first circuit board (80) and the second circuit board (90) (see FIGS. 6 and 7).

[0115] Generally, when combining a case and a bracket, separate tools or separate fastening members (e.g., screws, rivets, etc.) may be required. However, according to one embodiment of the present disclosure, the bracket (100) can be combined with the case (10) without separate tools or separate fastening members. This reduces the time and / or manpower required to combine the case (10) and the bracket (100). The number of parts required for assembling the cooking appliance (1) can be reduced. The assemblability and productivity of the cooking appliance (1) can be improved.

[0116] FIG. 10 is a perspective view of a bracket according to one embodiment of the present disclosure. FIG. 11 is an enlarged view of part A shown in FIG. 10.

[0117] Referring to FIGS. 10 and 11, a bracket (100) according to one embodiment of the present disclosure may include a base (110), a partition (120), and an insertion hole (130).

[0118] The bracket (100) may include a base (110). The base (110) may be arranged to rest on the bottom (11) of the case (10). The base (110) may be arranged to contact the bottom (11) of the case (10). The base (110) may include a shape that protrudes in a first direction (D1) from the partition (120). The base (110) may protrude in a first direction (D1) from the bottom of the partition (120). The base (110) may extend along a second direction (D2).

[0119] The base (110) may include a base body (111). The base (110) may include a plurality of borders for defining the base body (111). For example, the base (110) may include a first border (1111), a second border (1112), a third border (1113), a fourth border (1114), a fifth border (1115), a sixth border (1116), and a seventh border (1117).

[0120] The base (110) may include a corner (112). The corner (112) may be part of the base body (111). The corner (112) may include a point where two of the plurality of edges meet and a part of the base body (111) defined by the two edges.

[0121] For example, the base (110) may include a pair of corners (112). The base (110) may include a first corner (1121) formed by a first edge (1111) and a second edge (1112), and a second corner (1122) formed by a first edge (1111) and a third edge (1113). The first corner (1121) and the second corner (1122) may be spaced apart along a second direction (D2). The description of the corners (112) may apply to both the first corner (1121) and the second corner (1122).

[0122] The bracket (100) may include a partition (120). The partition (120) may extend from the base (110) along a third direction (D3). The third direction (D3) may be a direction that intersects the first direction (D1) and the second direction (D2), respectively. For example, the third direction (D3) may include an approximately vertical direction (Z direction). The partition (120) may extend upward from the base (110). The partition (120) may extend along the second direction (D2).

[0123] For example, the bracket (100) may include an approximately L-shaped form.

[0124] The bracket (100) may include an insertion hole (130). The insertion hole (130) may be formed in the base (110). For example, the insertion hole (130) may be formed by being recessed from the first edge (1111) of the base (110). For example, the insertion hole (130) may be formed to penetrate the upper and lower surfaces of the base (110). For example, the height of the insertion hole (130) along the third direction (D3) may be equal to the thickness (t) of the base (110).

[0125] The insertion hole (130) may be configured to allow insertion of the third coupling part (17) of the case (10), which will be described later. For example, the bracket (100) may include a plurality of insertion holes (130), and the plurality of insertion holes (130) may be spaced apart along approximately the second direction (D2). In the drawings, the bracket (100) is shown as including two insertion holes (130), but the present disclosure is not limited thereto. The insertion hole (130) may be provided as a single one. The number of insertion holes (130) may correspond to the number of the third coupling part (17).

[0126] Referring to FIG. 11, the insertion hole (130) may include a first hole portion (131) and a second hole portion (132). The first hole portion (131) and the second hole portion (132) may be arranged approximately along a first direction (D1). The first hole portion (131) may be positioned closer to the partition (120) than the second hole portion (132). The insertion hole (130) may be opened in a direction from the first hole portion (131) toward the second hole portion (132).

[0127] The second hole section (132) may be extended from the first hole section (131). The size of the second hole section (132) may be larger than the size of the first hole section (131). For example, the length (W1) along the second direction (D2) of the first hole section (131) may be smaller than the length (W2) along the second direction (D2) of the second hole section (132). Here, the length along the second direction (D2) may be based on the maximum length.

[0128] The bracket (100) may include a chamfer portion (133). The chamfer portion (133) may be configured to define a second hole portion (132). The chamfer portion (133) may include a shape that tapers in a direction from the second hole portion (132) toward the first hole portion (131). For example, the chamfer portion (133) may extend at an angle from the first edge (1111).

[0129] FIG. 12 is a cutaway perspective view of a case according to one embodiment of the present disclosure. FIG. 13 is an enlarged view of part B shown in FIG. 12. FIG. 14 is an enlarged view of part C shown in FIG. 12. FIG. 15 is an enlarged view of part D shown in FIG. 12. FIG. 16 is an enlarged view of part E shown in FIG. 12.

[0130] Referring to FIG. 12, the case (10) may include a plurality of connecting parts (15, 16, 17). The bracket (100) may be connected to the plurality of connecting parts (15, 16, 17). As the bracket (100) is connected to the plurality of connecting parts (15, 16, 17), the bracket (100) and the case (10) may be connected. The plurality of connecting parts (15, 16, 17) may be configured to secure the bracket (100) to the case (10) and to restrict the bracket (100) from detaching and / or separating from the case (10).

[0131] Referring to FIGS. 12 to 14, the case (10) may include a first connecting portion (15). The first connecting portion (15) may be formed on the bottom (11) of the case (10). For example, the first connecting portion (15) may be formed by cutting a portion (19a) of the bottom (11) of the case (10). For example, the first connecting portion (15) may be formed by a lance process. The first connecting portion (15) may protrude from the inner surface of the bottom (11) of the case (10).

[0132] The first connecting part (15) may be configured to be coupled to the base (110) of the bracket (100). The first connecting part (15) may be provided to correspond to the corner (112, see FIG. 10) of the base (110). The first connecting part (15) may be configured to fix the corner (112) of the base (110). The first connecting part (15) may cover the corner (112) of the base (110) so as to restrict the base (110) from moving along a first direction (D1), a second direction (D2), and a third direction (e.g., vertical direction).

[0133] For example, to fix one bracket (100), the first connecting part (15) may be provided in two. One of the two first connecting parts (15) may fix the first corner (1121), and the other of the two first connecting parts (15) may fix the second corner (1122). However, the present disclosure is not limited to the above-described examples, and the case (10) may include one first connecting part (15).

[0134] The first connecting portion (15) may include a first cover portion (151). The first cover portion (151) may extend upward from the bottom (11) of the case (10). The first cover portion (151) may protrude upward from the bottom (11) of the case (10). The first cover portion (151) may have a shape that extends approximately along a first direction (D1) and a second direction (D2). For example, the second cover portion (152) may include an approximately L-shape.

[0135] The first connecting portion (15) may include a second cover portion (152). The second cover portion (152) may extend from the first cover portion (151). It may extend from the first cover portion (151) approximately parallel to the bottom (11) of the case (10). The second cover portion (152) may have a shape that extends approximately along the first direction (D1) and the second direction (D2). For example, the second cover portion (152) may have an approximately plate shape.

[0136] For example, the second cover portion (152) may include a cover body (1521) and a bend portion (1522). The cover body (1521) may be configured to be parallel to the bottom (11) of the case (10). The bend portion (1522) may be configured to be bent from the cover body (1521). The bend portion (1522) may include a shape that slopes upward from the cover body (1521). The corner (112) of the base (110) can be guided by the bend portion (1522) to easily enter toward the cover body (1521).

[0137] The first connecting part (15) may include an insertion groove (153). The insertion groove (153) may be formed by the first cover part (151) and the second cover part (152). The insertion groove (153) may be configured so that the corner (112) of the base (110) can be inserted. For example, the second cover part (152) may have a bending part (1522) so that the opening of the insertion groove (153) can be enlarged, and the corner (112) of the base (110) can be inserted into the insertion groove (153) more easily.

[0138] Referring to FIGS. 12 and 15, the case (10) may include a second connecting portion (16). The second connecting portion (16) may be formed on the bottom (11) of the case (10). For example, the second connecting portion (16) may be formed by cutting and bending a portion (19b) of the bottom (11) of the case (10). The second connecting portion (16) may protrude upward from the bottom (11) of the case (10). For example, the second connecting portion (16) may be configured to stand upright on the bottom (11) of the case (10).

[0139] The second connecting part (16) may be configured to be coupled to the partition (120) of the bracket (100). The second connecting part (16) may be provided to correspond to the partition (120). The second connecting part (16) may be provided to support the partition (120). The second connecting part (16) may contact the partition (120) to restrict the partition (120) from moving along the first direction (D1). For example, the second connecting part (16) may be provided to support approximately the central part of the partition (120). For example, the second connecting part (16) may be located at the central part of the length along approximately the second direction (D2) of the bottom (11) of the case (10). However, the present disclosure is not limited to the examples described above. If the second connecting part (16) can support the partition (120), the second connecting part (16) can be provided at various locations, and the number of the second connecting part (16) is also not limited.

[0140] For example, the second connecting part (16) may include a first extension part (161) extending from the bottom (11) of the case (10) and a second extension part (162) extending from the first extension part (161). The first extension part (161) may be bent from the bottom (11) of the case (10). The second extension part (162) may extend upward from the first extension part (161). The second extension part (162) may extend obliquely from the first extension part (161).

[0141] For example, the second connecting part (16) may include an elastically deformable material. While the bracket (100) is being connected to the case (10), the second connecting part (16) may be elastically deformed. When the bracket (100) is fully connected to the case (10), the elastically deformed second connecting part (16) may be restored to its original state.

[0142] Referring to FIGS. 12 and 16, the case (10) may include a third connecting portion (17). The third connecting portion (17) may be formed on the bottom (11) of the case (10). For example, the third connecting portion (17) may be formed by cutting and bending a portion (19c) of the bottom (11) of the case (10). The third connecting portion (17) may protrude upward from the bottom (11) of the case (10). The third connecting portion (17) may be spaced apart from the first connecting portion (15) along a second direction (D2).

[0143] The third coupling part (17) may be configured to be coupled to the base (110) of the bracket (100). The third coupling part (17) may be provided to correspond to the base body (111, see FIG. 10) of the base (110). The third coupling part (17) may be configured to fix the base (110). The third coupling part (17) may be configured to be insertable into the insertion hole (130). The third coupling part (17) may be inserted into the insertion hole (130) to restrict the base (110) from moving along the second direction (D2) and the third direction (D3) (e.g., vertical direction).

[0144] For example, the third coupling portion (17) may be provided in plurality, and the plurality of third coupling portions (17) may be spaced apart along the second direction (D2). However, the present disclosure is not limited to the example described above, and the case (10) may include one third coupling portion (17). The number of third coupling portions (17) is not limited. The number of third coupling portions (17) may correspond to the number of insertion holes (130, see FIG. 10).

[0145] The third connecting part (17) may include a first rib part (171). The first rib part (171) may extend upward from the bottom (11) of the case (10). The first rib part (171) may be bent from the bottom (11) of the case (10).

[0146] The third connecting part (17) may include a second rib part (172). The second rib part (172) may extend upward from the first rib part (171).

[0147] The size of the second rib portion (172) may be larger than the size of the first rib portion (172). For example, the length (L2) of the second rib portion (172) along the second direction (D2) may be larger than the length (L1) of the first rib portion (171) along the second direction (D1). Here, the length along the second direction (D2) may be based on the maximum length.

[0148] For example, the third connecting part (17) may include a roughly T-shape.

[0149] Meanwhile, the first connecting part (15), the second connecting part (16), and the third connecting part (17) do not have their configuration limited by the ordinal numbers of "first," "second," and "third."

[0150] FIG. 17 is a drawing showing the assembly process of a case and a bracket according to one embodiment of the present disclosure. FIG. 18 is a cross-sectional view along the line I-I' indicated in FIG. 17. FIG. 19 is a drawing showing the assembly process of a case and a bracket according to one embodiment of the present disclosure. FIG. 20 is a cross-sectional view along the line II-II' indicated in FIG. 19. FIG. 21 is a drawing showing the assembly process of a case and a bracket according to one embodiment of the present disclosure. FIG. 22 is a cross-sectional view along the line III-III' indicated in FIG. 21. FIG. 23 is an enlarged view of section F indicated in FIG. 21. FIG. 24 is an enlarged view of section G indicated in FIG. 21.

[0151] Referring to FIGS. 17 and 18, the base (110) of the bracket (100) may be positioned to face the first coupling portion (15) and the third coupling portion (17) of the case (10). The corner (112) of the base (110) may be positioned to correspond to the insertion groove (153) of the first coupling portion (15). The corner (112) of the base (110) may be positioned to enter toward the insertion groove (153) of the first coupling portion (15). The insertion hole (130) may be positioned to correspond to the third coupling portion (17). For example, the second hole portion (132) of the insertion hole (130) may be positioned to correspond to the third coupling portion (17). The bracket (100) may be tilted relative to the bottom (11) of the case (10) so as to be coupled to the case (10). The base (110) can be inclined with respect to the bottom (11) of the case (10).

[0152] Referring to FIGS. 19 and 20, the base (110) of the bracket (100) can be moved further toward the first coupling part (15) and the third coupling part (17) of the case (10). The corner (112) of the base (110) can enter into the insertion groove (153) of the first coupling part (15). The corner (112) of the base (110) can be inserted into the insertion groove (153) of the first coupling part (15). The third coupling part (17) can be inserted into the insertion hole (130). For example, the third coupling part (17) can be arranged to pass through the second hole part (132) and be positioned in the first hole part (131). That is, as the base (110) moves, the third coupling part (17) can be arranged to pass through the second hole part (132) and be positioned in the first hole part (131). The chamfer portion (133) may be provided to guide the third coupling portion (17), which enters the second hole portion (132), to the first hole portion (131). The bracket (100) may rotate so that the base (110) faces the bottom (11) of the case (10). The slope formed by the base (110) and the bottom (11) of the case (10) may be reduced. The bracket (100) may be elastically deformed while being coupled with the case (10). The second coupling portion (16) may also be elastically deformed while the bracket (100) and the case (10) are being coupled.

[0153] Referring to FIGS. 21 through 24, the bracket (100) can be coupled to the case (10). The corner (112) of the base (110) can be coupled to the first coupling part (15). The partition (120) of the base (110) can be coupled to the second coupling part (16). The insertion hole (113) of the base (110) can be coupled to the third coupling part (17). The bracket (100) can be rotated so that the base (110) is placed on the bottom (11) of the case (10). After the corner (112) of the base (110) is fixed to the first coupling part (15), the bracket (100) rotates so that the base (110) is seated on the bottom (11) of the case (10), and the partition (120) can be supported by the second coupling part (16). After the third coupling part (17) is fixed in the insertion hole (130), the partition (120) can be supported by the second coupling part (16) as the bracket (100) rotates so that the base (110) is seated on the bottom (11) of the case (10). After the base (110) is coupled to the first coupling part (15) and the third coupling part (17), the partition (120) can be coupled to the second coupling part (16) as the bracket (100) rotates so that the base (110) is seated on the bottom (11) of the case (10).

[0154] As the connection between the bracket (100) and the case (10) is completed, the bracket (100), which was elastically deformed during the connection between the bracket (100) and the case (10), can be restored to its original state. If the second connecting part (16) is elastically deformed during the connection between the bracket (100) and the case (10), the elastically deformed second connecting part (16) can be restored to its original state.

[0155] Referring to FIG. 22, while the bracket (100) is coupled to the case (10), the second coupling part (16) may be provided to support the partition (120). The partition (120) may include a first surface (121) adjacent to the base and a second surface (122) opposite to the first surface (121). While the bracket (100) is coupled to the case (10), the second coupling part (16) may be provided to contact the second surface (122) of the partition (120). The first extension part (161) of the second coupling part (16) may be provided to contact the second surface (122) of the partition (120). While the bracket (100) is coupled to the case (10), the second coupling part (16) may restrict the bracket (100) from moving along the first direction (D1). When the bracket (100) moves while connected to the case (10), the partition (120) may interfere with the second connecting part (16).

[0156] Referring to FIG. 23, while the bracket (100) is coupled to the case (10), the first coupling part (15) may be provided to secure the corner (112) of the base (110). For example, two first coupling parts (15) may each secure a pair of corners (112) (1121 and 1122, see FIG. 10) of the base (110). While the bracket (100) is coupled to the case (10), the corner (112) of the base (110) may be inserted into the insertion groove (153). The thickness (t) of the base (110) may be less than or equal to the height (H1) along the vertical direction of the insertion groove (153) (see FIG. 22). Thus, the corner (112) of the base (110) can be inserted into the insertion groove (153). While the bracket (100) is coupled to the case (10), the first cover portion (151) may be provided to cover the edge forming the corner (112) (in FIG. 23, part of the first edge (1111) and part of the third edge (1113)). While the bracket (100) is coupled to the case (10), the second cover portion (152) may be provided to cover the upper surface. While the bracket (100) is coupled to the case (10), the first coupling portion (15) may restrict the bracket (100) from moving along the first direction (D1), the second direction (D2), and the third direction (D3). For example, the first cover portion (151) may restrict the bracket (100) from moving in the first direction (D1) and the second direction (D2). For example, the second cover portion (152) may restrict the bracket (100) from moving along the third direction (D3). When the bracket (100) moves while coupled to the case (10), the corner (112) of the base (110) may interfere with the first coupling portion (15).

[0157] Referring to FIG. 24, while the bracket (100) is coupled to the case (10), the third coupling part (17) may be provided to secure the base (110). The third coupling part (17) may be provided to be inserted into the insertion hole (130) to secure the base body (111). While the bracket (100) is coupled to the case (10), the third coupling part (17) may be inserted into the insertion hole (130). While the bracket (100) is coupled to the case (10), the first rib part (171) of the third coupling part (17) may be placed in the first hole part (131). While the bracket (100) is coupled to the case (10), the second rib part (172) of the third coupling part (17) may be placed on the upper surface of the base (110). While the bracket (100) is coupled to the case (10), the third coupling part (17) may restrict the bracket (100) from moving along the second direction (D2) and the third direction (D3). When the bracket (100) moves while coupled to the case (10), the base (110) may interfere with the third coupling part (17).

[0158] Meanwhile, the height (H2) along the vertical direction of the first rib portion (171) may be greater than or equal to the thickness (t) of the base (110). The length (L2) along the second direction (D2) of the second rib portion (172) may be greater than the length (L1) along the second direction (D2) of the first rib portion (171). The length (L1) along the second direction (D2) of the first rib portion (171) may be less than or equal to the length (W1) along the second direction (D2) of the first hole portion (131). The length (L1) along the second direction (D2) of the first rib portion (171) may be smaller than the length (W2) along the second direction (D2) of the second hole portion (132). Thus, the first rib portion (171) of the third coupling portion (17) can pass through the second hole portion (132) and be inserted into the first hole portion (131). The first rib portion (171) placed in the first hole portion (131) may interfere with the rim forming the first hole portion (131). For example, the first rib portion (171) may be configured to be placed within the insertion hole (130) (specifically, the first hole portion (131)) to restrict the base (110) from moving along the second direction (D2). While the first rib portion (171) is placed in the first hole portion (131), the second rib portion (172) may be placed above the base (110). For example, the second rib (172) may be positioned above the base (110) to restrict the base (110) from moving along a third direction (D3) (e.g., vertical direction).

[0159] As described above, according to one embodiment of the present disclosure, the bracket (100) can be coupled to the case (10) without a separate tool or a separate fastening member. A plurality of coupling parts (16, 17, 18) of the case (10) can fix or support the bracket (100). When the bracket (100) is coupled to the case (10), the plurality of coupling parts (16, 17, 18) can prevent or reduce the bracket (100) from separating or detaching from the case (10). Thus, the bracket (100) can be stably coupled to the case (10). The bracket (100) does not detach between the first circuit board (80) and the second circuit board (90) and can effectively prevent or reduce EMI.

[0160] FIG. 25 is a cross-sectional view of a part of a case according to one embodiment of the present disclosure. FIG. 26 is a cross-sectional view showing a state in which a bracket is coupled to the case shown in FIG. 25 according to one embodiment of the present disclosure.

[0161] Compared to the second coupling part (16) shown in FIG. 15, the second coupling part (16) shown in FIG. 25 and FIG. 26 may include a third extension part (163) and a fourth extension part (164) without including a first extension part (161) and a second extension part (162). Compared to the second coupling part (16) shown in FIG. 15, the second coupling part (16) shown in FIG. 25 and FIG. 26 may perform substantially the same function, differing only in shape.

[0162] The third extension (163) may extend upward from the bottom (11) of the case (10). The third extension (163) may be provided to be inclined from the bottom (11) of the case (10). The fourth extension (164) may extend upward from the third extension (163). The fourth extension (164) may be provided to be inclined from the third extension (163). For example, the inclination direction of the third extension (163) and the inclination direction of the fourth extension (164) may be different. The third extension (163) may be configured to form an obtuse angle (a) with respect to the bottom (11) of the case (10). The fourth extension (164) may be configured to form an acute angle (b) with respect to the bottom (11) of the case (10). While the bracket (100) is coupled to the case (10), the third extension (163) may be configured to contact the partition (120). While the bracket (100) is coupled to the case (10), the third extension (163) may be configured to support the second side (122) of the partition (120).

[0163] FIG. 27 is a cross-sectional view of a part of a case according to one embodiment of the present disclosure. FIG. 28 is a cross-sectional view showing a state in which a bracket is coupled to the case shown in FIG. 27 according to one embodiment of the present disclosure.

[0164] Compared to the second coupling part (16) shown in FIG. 15, the second coupling part (16) shown in FIG. 27 and FIG. 28 may include a fifth extension part (165) and a sixth extension part (166) without including a first extension part (161) and a second extension part (162). Compared to the second coupling part (16) shown in FIG. 15, the second coupling part (16) shown in FIG. 27 and FIG. 28 may perform substantially the same function, differing only in shape.

[0165] The fifth extension (165) may extend upward from the bottom (11) of the case (10). For example, the fifth extension (165) may protrude so as to roughly intersect the bottom (11) of the case (10). The sixth extension (166) may be configured to curve from the fifth extension (165). The sixth extension (166) may include a rounded shape from the top of the sixth extension (165). While the bracket (100) is attached to the case (10), the fifth extension (165) may be bent. While the bracket (100) is attached to the case (10), the sixth extension (166) may be configured to contact the partition (120). While the bracket (100) is coupled to the case (10), the sixth extension (166) may be configured to support the second side (122) of the partition (120).

[0166] FIG. 29 is a cross-sectional view of a part of a case according to one embodiment of the present disclosure. FIG. 30 is a cross-sectional view showing a state in which a bracket is coupled to the case shown in FIG. 29 according to one embodiment of the present disclosure.

[0167] Compared to the third connecting part (17) shown in FIG. 16, the third connecting part (17) shown in FIG. 29 and FIG. 30 may include the third rib part (173) and the fourth rib part (174) without including the first rib part (171) and the second rib part (172). Compared to the third connecting part (17) shown in FIG. 16, the third connecting part (17) shown in FIG. 29 and FIG. 30 may perform substantially the same function, differing only in shape.

[0168] The third rib (173) may extend upward from the bottom (11) of the case (10). For example, the third rib (173) may protrude so as to roughly intersect the bottom (11) of the case (10). The fourth rib (174) may be bent from the third rib (173). The fourth rib (174) may protrude from the third rib (173) in a roughly first direction (D1). The fourth rib (174) may protrude so as to roughly intersect the third rib (173). While the bracket (100) is attached to the case (10), the third rib (173) may be inserted into the insertion hole (130). As the bracket (100) is coupled to the case (10), the third rib portion (173) may be arranged to pass through the second hole portion (132) and be placed in the first hole portion (131). While the bracket (100) is coupled to the case (10), the fourth rib portion (174) may be extended toward the partition (120). While the bracket (100) is coupled to the case (10), the fourth rib portion (174) may be placed above the upper surface of the base (110).

[0169] Meanwhile, the height (H3) along the vertical direction of the third rib portion (173) may be greater than or equal to the thickness (t) of the base (110). The length (L3) along the second direction (D2) of the third rib portion (173) may be less than or equal to the length (W1) along the second direction (D2) of the first hole portion (131). The length (L3) along the second direction (D2) of the third rib portion (173) may be smaller than the length (W2) along the second direction (D2) of the second hole portion (132). Thus, the third rib portion (173) of the third coupling portion (17) can pass through the second hole portion (132) and be inserted into the first hole portion (131). A third rib portion (173) placed in the first hole portion (131) may interfere with the rim forming the first hole portion (131). For example, the third rib portion (173) may be placed within the insertion hole (130) (specifically, the first hole portion (131)) and configured to restrict the base (110) from moving along the second direction (D2). While the third rib portion (173) is placed in the first hole portion (131), a fourth rib portion (174) may be placed above the base (110). For example, a second rib portion (172) may be placed above the base (110) and configured to restrict the base (110) from moving along the third direction (D3) (e.g., vertical direction).

[0170] According to one embodiment of the present disclosure, a cooking device (1) may comprise: a case (10); a cooking plate (20) mountable on the case (10); an induction heating coil (30) disposed inside the case (10); a first circuit board (80) disposed inside the case (10) and configured to remove and / or reduce noise included in the current supplied from an external power source; a second circuit board (90) disposed inside the case (10) and configured to drive the induction heating coil (30); and a bracket (100) coupleable to the case (10) to be disposed between the first circuit board (80) and the second circuit board (90) and configured to prevent and / or reduce EMI. The bracket (100) may comprise a base (110) provided to be placed on the bottom (11) of the case and a partition (120) extending upward from the base (110). The above case (10) may include a first coupling part (15) formed on the bottom (11) of the case and arranged to fix the corner (112) of the base (110) while the bracket is coupled to the case. It may include a second coupling part (16) formed on the bottom (11) of the case and arranged to support the partition (120) while the bracket is coupled to the case.

[0171] The first circuit board (80) and the second circuit board (90) may be arranged along a first direction (D1). The base (110) may include a shape protruding from the partition (120) in the first direction (D1). The partition (120) may include a shape extending along a second direction (D2) that intersects the first direction.

[0172] The first coupling portion (15) may include a first cover portion (151) extending upward from the bottom (11) of the case. The first cover portion (151) may be provided to cover the edge forming the corner (112) of the base while the bracket is coupled to the case. The first coupling portion (15) may include a second cover portion (152) extending from the first cover portion (151). The second cover portion (152) may be provided to cover the upper surface of the corner (112) while the bracket is coupled to the case. The first coupling portion (15) may include an insertion groove (153) formed by the first cover portion (151) and the second cover portion (152) into which the corner (112) can be inserted.

[0173] The above partition (120) may include a first surface (121) adjacent to the base and a second surface (122) opposite to the first surface. The second coupling portion (16) may be provided to contact the second surface (122) of the partition (120) while the bracket is coupled to the case.

[0174] The case (10) may include a third coupling part (17) formed on the bottom (11) of the case and spaced apart from the first coupling part (15) along the second direction (D2). The third coupling part (17) may be provided to secure the base (110) while the bracket is coupled to the case.

[0175] The third connecting portion (17) may include a first rib portion (171) extending upward from the bottom (11) of the case. The third connecting portion (17) may include a second rib portion (172) extending upward from the first rib portion (171) and positioned on the upper surface of the base while the bracket is connected to the case.

[0176] The length (L2) of the second rib portion (172) in the second direction (D2) may be greater than the length (L1) of the first rib portion (171) in the second direction (D2).

[0177] The height (H2) along the vertical direction of the first rib portion (171) may be greater than or equal to the thickness (t) of the base (110).

[0178] The bracket (100) may include an insertion hole (130) formed in the base (110). The insertion hole (130) may be provided so that the third coupling part (17) can be inserted.

[0179] The insertion hole (130) may include a first hole portion (131) and a second hole portion (132) extending from the first hole portion. The third coupling portion (17) may be provided to pass through the second hole portion (132) and be positioned in the first hole portion (131).

[0180] The bracket (100) may include a chamfer portion (133) that defines the second hole portion and is provided to guide a third coupling portion entering the second hole portion to the first hole portion.

[0181] The third connecting portion (17) may include a first rib portion (173) extending upward from the bottom of the case. The third connecting portion (17) may include a second rib portion (174) that is bent from the first rib portion (173) and extends toward the partition (120) while the bracket is connected to the case.

[0182] The second connecting part (16) may include a first extension part (163) that slopes from the bottom of the case. The second connecting part (16) may include a second extension part (164) that slopes from the first extension part (163). The first extension part (163) may be configured to form an obtuse angle (a) with respect to the bottom (11) of the case. The second extension part (164) may be configured to form an acute angle (b) with respect to the bottom (11) of the case.

[0183] The second coupling portion (16) may include a first extension portion (165) extending upward from the bottom (11) of the case. The second coupling portion (16) may include a second extension portion (166) that is curved from the first extension portion (165) and is arranged to contact the partition (120) while the bracket is coupled to the case.

[0184] The first circuit board (80) may include a filter coil (81). The second circuit board (90) may include a wire (91) configured to be connected to the induction heating coil (30).

[0185] A cooking device (1) according to one embodiment of the present disclosure may include: a case (10); an induction heating coil (30) disposed inside the case; a first circuit board (80) disposed inside the case and including a filter coil (81); a second circuit board (90) disposed inside the case so as to be spaced apart from the first circuit board (80) along a first direction (D1) and including a wire (91) configured to be connected to the induction heating coil (30); a partition (120) provided to extend along a second direction (D2) intersecting the first direction between the first circuit board (80) and the second circuit board (90); and a base (110) protruding from the partition (120) in the first direction (D1) and including an insertion hole (130). The case (10) may include a coupling part (17) formed on the bottom (11) of the case and insertable into the insertion hole (130). The coupling portion (17) may include a first rib portion (171; 173) disposed within the insertion hole (130) and configured to restrict the base from moving along the second direction (D2). The coupling portion (17) may include a second rib portion (172; 174) extending from the first rib portion (171; 173) and disposed above the base (110) to restrict the base from moving along the vertical direction.

[0186] The length (L2) of the second rib portion (172) in the second direction (D2) may be greater than the length (L1) of the first rib portion (171) in the second direction (D2). The height (H2) of the first rib portion (171) in the vertical direction may be greater than or equal to the thickness (t) of the base (110).

[0187] The above coupling part may be a first coupling part (17). The case (10) may further include a second coupling part (15) formed on the bottom (11) of the case and arranged to cover a corner (112) of the base to restrict the base from moving along the first direction (D1), the second direction (D2), and the vertical direction (Z).

[0188] The above case (10) may further include a third coupling part (16) that extends upward from the bottom (11) of the case and is arranged to contact the partition (120) to restrict the partition (120) from moving along the first direction (D1).

[0189] The above cooking device (1) may further include a bracket (100) provided to prevent and / or reduce electromagnetic interference between the filter coil (81) and the wire (91). The bracket (100) may include the partition (120) and the base (110). The base may be connected to the first coupling part (17) and the second coupling part (15), and then the bracket may be rotated so that the base (110) is seated on the bottom (11) of the case, so that the partition (120) is connected to the third coupling part (16).

[0190] According to various exemplary embodiments of the present disclosure, the bracket (100) can be detachably coupled to the case (10) without a separate tool or separate fastening member (e.g., screw, rivet, etc.). The bracket (100) can be constrained in the X-axis, Y-axis, and Z-axis directions while coupled to the case (10), and the bracket (100) may not easily detach or separate from the case (10). The assemblability and productivity of the cooking device (1) can be improved.

[0191] According to various exemplary embodiments of the present disclosure, the bracket (100) can prevent and / or reduce electromagnetic interference between the first circuit board (80) and the second circuit board (90). Stable operation of the cooking device (1) can be ensured.

[0192] The effects obtainable from the present disclosure are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art to which the present disclosure belongs.

[0193] Specific embodiments have been illustrated and described above. However, the invention is not limited to the embodiments described above, and those skilled in the art may make various modifications without departing from the essence of the technical concept of the invention as described in the following claims.

Claims

1. Case; A cooking plate mountable on the above case; An induction heating coil disposed inside the above case; A first circuit board disposed inside the above case and configured to remove noise included in the current supplied from an external power source and to reduce noise; A second circuit board disposed inside the above case and configured to drive the induction heating coil; and A bracket that is coupleable to the case so as to be disposed between the first circuit board and the second circuit board, configured to prevent electromagnetic interference (EMI), and configured to reduce electromagnetic interference; The above bracket is, A base configured to be placed on the bottom of the above case, and It includes a partition extending upward from the above base, and The above case is, A first coupling portion formed on the bottom of the case and arranged to fix the corner of the base while the bracket is coupled to the case, and A cooking appliance comprising a second coupling portion formed on the bottom of the case and arranged to support the partition while the bracket is coupled to the case.

2. In Paragraph 1, The first circuit board and the second circuit board are arranged along a first direction, and The above base protrudes from the above partition in the first direction, and The above partition is a cooking device extending along a second direction intersecting the above first direction.

3. In Paragraph 1. The above first coupling part is, A first cover portion extending upward from the bottom of the case and configured to cover the edge of the corner of the base; A second cover portion extending from the first cover portion to cover the upper surface of the corner; and A cooking appliance comprising: an insertion groove formed by the first cover portion and the second cover portion, into which the corner can be inserted.

4. In Paragraph 1, The above partition includes a first surface adjacent to the base and a second surface opposite to the first surface, The above second connecting part is a cooking device configured to contact the second surface of the partition.

5. In Paragraph 2, The above case is, A cooking device further comprising a third coupling portion formed on the bottom of the case to fix the base and spaced apart from the first coupling portion along the second direction.

6. In Paragraph 5, The above third coupling part is, A first rib portion extending upward from the bottom of the above case; and A cooking device comprising: a second rib portion extending upward from the first rib portion and positioned on the upper surface of the base.

7. In Paragraph 6, A cooking device in which the length of the second rib portion along the second direction is greater than the length of the first rib portion along the second direction.

8. In Paragraph 6, A cooking device in which the height of the first rib portion in the vertical direction is greater than or equal to the thickness of the base.

9. In Paragraph 5, The above bracket is, A cooking device comprising an insertion hole formed in the base and configured to allow the third coupling part to be inserted.

10. In Paragraph 9, The above insertion hole is, The first hole section, and It includes a second hole portion extending from the first hole portion, and The above third coupling part is a cooking device that passes through the above second hole part and is placed in the above first hole part.

11. In Paragraph 10, The above bracket is, A cooking device comprising a chamfer portion that defines the second hole portion and is configured to guide a third coupling portion entering the second hole portion to the first hole portion.

12. In Paragraph 5, The above third coupling part is, A first rib portion extending upward from the bottom of the above case; and A cooking device comprising: a second rib portion that is bent from the first rib portion and extends toward the partition.

13. In Paragraph 1, The above second coupling part is, A first extension portion inclined from the bottom of the above case; and It includes a second extension portion inclined from the first extension portion; and The first extension is configured to form an obtuse angle with respect to the bottom of the case, and A cooking device configured such that the second extension part forms an acute angle with respect to the bottom of the case.

14. In Paragraph 1, The above second coupling part A first extension portion extending upward from the bottom of the above case; and A cooking device comprising: a second extension portion that is curved from the first extension portion and configured to contact the partition.

15. In Paragraph 1, The first circuit board above includes a filter coil, and The above second circuit board is a cooking device comprising a wire configured to be connected to the induction heating coil.

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