Cooking appliance

Abstract

An invention relating to a cooking appliance is disclosed. The disclosed invention comprises: a heating unit for heating a target object placed on a top plate, and a sensor that detects vibrations generated from the top plate and generates a signal, and is characterized by controlling the operation of the heating unit by reflecting knock input information identified based on the signal generated by the sensor.

Description

Technology Field

[0001] The present invention relates to a cooking appliance, and more specifically, to a cooking appliance including a cooktop. Background Technology

[0002] Cooking appliances are household appliances installed in a kitchen space to cook food according to the user's intentions. Such cooking appliances can be classified in various ways depending on the heat source or form used, and the type of fuel.

[0003] When classifying cooking appliances according to the form in which food is cooked, they can be classified into open and closed types based on the shape of the space where the food is placed. Closed cooking appliances include ovens and microwave ovens, while open cooking appliances include cooktops and stovetops.

[0004] Closed-type cooking appliances are designed to prevent heat from escaping, offering the advantages of even cooking and reduced cooking time. On the other hand, open-type cooking appliances allow users to directly monitor and control the cooking process, enabling flexible adaptation to a variety of dishes.

[0005] Among open cooking appliances, a cooktop is configured to heat food contained in a cooking vessel through at least one burner. Such a cooktop may be provided in a form equipped with an electric burner or a form equipped with a gas burner. In addition, the cooktop may be implemented as a standalone unit, or it may be implemented in the form of an oven range that includes an oven underneath the cooktop.

[0006] The cooktop may include a control panel, and the control panel may be provided with various buttons for controlling the operation of the cooktop. In addition, the control panel may also be provided with a display for indicating the operating status of the cooktop.

[0007] In a cooktop, the on / off, heat level, and operating time of the burner can be controlled by operating knobs or buttons provided on the control panel. For example, the user can select the burner to use by pressing a burner selection button provided on the control panel, and adjust the heat level of the burner by pressing a heat level control button.

[0008] When cooking with a cooktop, it frequently occurs that the user wants to adjust the operation of the burner during the cooking process. For example, it frequently occurs during the cooking process that the user attempts to operate the control panel to adjust the heat of the burner or to operate a new burner while preparing food ingredients.

[0009] However, if a user operates the control panel with hands contaminated with food ingredients or seasonings, not only will the control panel become contaminated, but the likelihood of the cooking appliance malfunctioning will also increase. The problem to be solved

[0010] The purpose of the present invention is to provide a cooking appliance that allows the operation of the cooking appliance to be controlled by a method other than operating a control panel.

[0011] Another objective of the present invention is to provide a cooking appliance that allows the operation of the cooking appliance to be effectively controlled even with contaminated hands.

[0012] In addition, another objective of the present invention is to provide a cooking device that enables the performance of a sensor for detecting knock input to be effectively utilized.

[0013] Another objective of the present invention is to provide a cooking device that can simplify the wiring structure connected to a sensor for detecting knock input. means of solving the problem

[0014] A cooking device, which is an embodiment of the present invention for achieving the above objective, comprises a heating unit that heats a heating target placed on a top plate, and a sensor that detects vibrations generated from the top plate and generates a signal, and is characterized by controlling the operation of the heating unit by reflecting knock input information identified based on the signal generated by the sensor.

[0015] Through this, the present invention can improve the front aesthetics of the cooking appliance by partially covering the gap between the door and the control panel.

[0016] In addition, another embodiment of the present invention includes a heating unit for heating an object placed on a top plate, and a sensor that detects vibrations generated as a result of a user tapping the top plate and generates a signal, and is characterized by controlling the operation of the heating unit by reflecting information obtained by the signal generated by the sensor.

[0017] A cooking device according to one aspect of the present invention may include: a cooktop case having a receiving space formed inside; a top plate disposed on the upper side of the cooktop case and covering the receiving space; a heating unit having at least a portion disposed in the receiving space and heating an object to be heated placed on the top plate; a sensor that detects vibrations generated from the top plate and generates a signal; and a control unit that controls the operation of the heating unit by reflecting knock input information identified based on the signal generated by the sensor.

[0018] In addition, the heating unit may include at least one heating coil.

[0019] In addition, regarding the horizontal direction, the sensor may be positioned between the side wall of the cooktop case and the heating coil, or between a plurality of the heating coils.

[0020] In addition, regarding the horizontal direction, the sensor may be positioned between the side wall of the cooktop case and the heating element, or between a plurality of heating elements arranged in the horizontal direction.

[0021] In addition, it is preferable that a pair of the heating units are spaced apart laterally, and that the sensor is positioned between the pair of heating units laterally.

[0022] In addition, the present invention may further include an electrical component disposed between a pair of heating parts spaced apart at a predetermined distance in the lateral direction.

[0023] In addition, it is preferable that the sensor be placed in a space surrounded by a pair of the heating parts and the electrical components.

[0024] In addition, the present invention may further include a control panel positioned further forward than at least one of the pair of heating units spaced apart laterally.

[0025] In addition, it is preferable that the sensor be placed in a space surrounded by a pair of the heating units and the control panel.

[0026] In addition, the present invention may further include an electrical component disposed between a pair of heating parts spaced apart at a predetermined distance in the lateral direction.

[0027] In addition, the control panel may be positioned further forward than the electrical component.

[0028] In addition, it is preferable that the heating unit be placed in a space surrounded by a pair of the heating units, the electrical components, and the control panel.

[0029] In addition, regarding the front-rear direction, it is preferable that the sensor be positioned closer to the control panel than to the center of the front-rear direction of the receiving space.

[0030] In addition, the present invention may further include a sensor case that supports the sensor.

[0031] In addition, it is preferable that at least a portion of the sensor case be in close contact with the top plate.

[0032] In addition, the sensor case may include a horizontal surface portion positioned to block the space between the sensor and the top plate.

[0033] In addition, it is preferable that the sensor be connected to the sensor case at the lower side of the horizontal surface.

[0034] In addition, the present invention may further include an attachment material that attaches the sensor case to the top plate by adhering at least a portion of the horizontal surface to the top plate.

[0035] In addition, the sensor case may further include a groove portion arranged to surround the horizontal surface portion from the outer side in the horizontal direction.

[0036] In addition, it is preferable that the above groove be formed in a shape in which a part of the upper surface of the above horizontal surface is sunken downward.

[0037] In addition, the above-mentioned adhesive material preferably includes a sealant that is filled into the space formed between the groove and the top plate and attached to the sensor case and the top plate.

[0038] In addition, the sensor case may include a case body connected to the sensor, and a contact projection protruding from the case body toward the top plate.

[0039] In addition, it is desirable that vibrations generated from the top plate are transmitted to the case body through contact protrusions in contact with the top plate.

[0040] In addition, it is preferable that the contact projection is positioned between the top plate and the transverse surface and contacts the top plate while separating at least a portion of the transverse surface from the top plate.

[0041] In addition, it is preferable that a plurality of the contact protrusions, each provided to be in close contact with the top plate, are arranged at a predetermined interval along the horizontal direction.

[0042] In addition, the present invention may further include a supporter installed in the cooktop case to support the sensor case.

[0043] In addition, it is preferable that at least a portion of the sensor case be in close contact with the top plate between the supporter and the top plate.

[0044] In addition, the present invention may further include an elastic member that presses the sensor case toward the top plate so that at least a portion of the sensor case can be in close contact with the top plate.

[0045] In addition, the elastic member preferably includes a coil spring that is supported by the supporter and elastically supports the sensor case.

[0046] In addition, the supporter may include a supporter body installed in the cooktop case and a support rod protruding upward from the supporter body.

[0047] In addition, it is preferable that the support rod be fitted into the coil spring to allow vertical extension of the coil spring and restrict horizontal movement of the coil spring.

[0048] In addition, the sensor case may include a case body connected to the sensor, and a lifting support member movably coupled to the support rod to support the case body so as to be vertically movable on the supporter.

[0049] In addition, it is preferable that the support rod be fitted into the lifting support member to allow the lifting of the lifting support member and to restrict the lateral movement of the lifting support member.

[0050] In addition, it is preferable that the lower part of the coil spring is supported by the supporter, and the upper part of the coil spring is coupled to the support rod or supports the support rod upward.

[0051] In addition, the supporter may include a supporter body installed in the cooktop case and a support wall protruding upward from the supporter body.

[0052] In addition, the sensor case may include a protruding shaft that is coupled to the support wall.

[0053] In addition, it is preferable that the protrusion be inserted into a hook slot formed in the support wall and coupled to the support wall so as to be vertically movable.

[0054] In addition, it is desirable that the above protrusion is caught on the inner upper surface of the support wall inside the hook slot, thereby restricting the upward movement of the protrusion.

[0055] In addition, it is preferable that the sensor case be coupled to the supporter so as to be movable in a direction toward or away from the top plate.

[0056] In addition, the sensor case may include a plurality of lifting support members that movably connect the sensor case to the supporter.

[0057] In addition, it is preferable that each of the above-mentioned lifting support members is movably coupled to the supporter on the lateral outer side of the sensor.

[0058] In addition, it is preferable that a plurality of the aforementioned lifting support members are arranged symmetrically in the front-rear or lateral directions centered on the sensor, or symmetrically in both the front-rear and lateral directions.

[0059] In addition, it is preferable that a plurality of the above elastic members are arranged symmetrically in the front-rear or lateral direction with respect to the sensor, or symmetrically in both the front-rear and lateral directions.

[0060] In addition, it is preferable that the sensor be placed on the control panel.

[0061] In addition, the control panel may include a circuit board and a panel case that accommodates the circuit board.

[0062] In addition, it is preferable that the sensor case be arranged to be connected to the panel case or formed integrally with the panel case. Effects of the invention

[0063] The present invention can provide an operation control function by knock input. By enabling the control of various functions of the cooking appliance with only a simple knock input, such a cooking appliance can provide enhanced convenience to the user.

[0064] In addition, the present invention enables the control of the cooking appliance's functions with only a simple knock input, thereby allowing the user to effectively control the operation of the cooking appliance even with contaminated hands during cooking.

[0065] The present invention can reduce the possibility of malfunction of the cooking appliance caused by incorrect control panel operation. In addition, the present invention can effectively improve the convenience and safety of the cooking appliance by enabling the user to respond quickly and effectively to emergency situations that occur, such as the cooking container overheating or food boiling over.

[0066] In addition, the present invention effectively reduces the risk of malfunction and damage to the sensor by positioning the sensor in an area that is close to a typical knock input point and maintained at a low temperature, and enables the sensor's performance for knock input detection to be effectively utilized, thereby providing knock detection performance at the level of silver.

[0067] In addition, the present invention can provide the effect of simplifying the wiring connection structure between the sensor and the main PCB and effectively shortening the wiring length by positioning the sensing module in an area very close to the control panel. Brief explanation of the drawing

[0068] FIG. 1 is a perspective view illustrating a cooking device according to a first embodiment of the present invention. Figure 2 is a cross-sectional view showing the internal structure of the cooking appliance illustrated in Figure 1. Figure 3 is a bottom view showing the internal structure of the cooking appliance illustrated in Figure 1. FIG. 4 is a schematic diagram showing the configuration of a home appliance according to one embodiment of the present invention. FIG. 5 is an enlarged view illustrating a sensing module according to the first embodiment. FIG. 6 is an exploded perspective view showing the exploded state of the sensing module illustrated in FIG. 5. Figure 7 is a plan view of the sensing module illustrated in Figure 5. FIG. 8 is a cross-sectional view showing the internal structure of the sensing module illustrated in FIG. 5. Figure 9 is a diagram schematically showing the connection status between the sensor and the control panel illustrated in Figure 5. FIG. 10 is an enlarged view illustrating a sensing module according to a second embodiment of the present invention. FIG. 11 is an exploded perspective view showing the exploded state of the sensing module illustrated in FIG. 10. FIG. 12 is a cross-sectional view showing the internal structure of the sensing module illustrated in FIG. 10. FIG. 13 is a diagram schematically showing the connection status between the sensor and the control panel illustrated in FIG. 10. FIG. 14 is a plan view showing the internal structure of a cooking appliance according to a third embodiment of the present invention. FIG. 15 is an enlarged view showing the control panel and sensing module illustrated in FIG. 14. FIG. 16 is an exploded perspective view showing the exploded state of the control panel and sensing module illustrated in FIG. 15. FIG. 17 is a cross-sectional view along the line "17-17" of FIG. 15. FIG. 18 is a cross-sectional view along the line "18-18" of FIG. 15. Specific details for implementing the invention

[0069] The aforementioned objectives, features, and advantages are described in detail below with reference to the attached drawings, thereby enabling those skilled in the art to easily implement the technical concept of the present invention. In describing the present invention, detailed descriptions of known technologies related to the present invention are omitted if it is determined that such descriptions would unnecessarily obscure the essence of the invention. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

[0070] Although terms such as "first," "second," etc., are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used merely to distinguish one component from another, and unless specifically stated otherwise, the first component may also be the second component.

[0071] The present invention is not limited to the embodiments disclosed below, but can be modified and implemented in various different forms. The embodiments provided are merely intended to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention. Accordingly, the present invention should be understood not to be limited to the embodiments disclosed below, but to include all modifications, equivalents, and substitutions that fall within the technical spirit and scope of the present invention, as well as substituting or adding the configuration of one embodiment with the configuration of another embodiment.

[0072] The attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings; rather, it should be understood that they include all modifications, equivalents, and substitutions that fall within the spirit and technical scope of the invention. In the drawings, components may be depicted as being exaggeratedly large or small in size or thickness for the sake of convenience of understanding, but the scope of protection of the invention should not be interpreted restrictively as a result thereof.

[0073] The terms used in this specification are used merely to describe specific embodiments or examples and are not intended to limit the invention. Furthermore, singular expressions include plural expressions unless the context clearly indicates otherwise. Terms such as "includes" or "consists of" in this specification are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in this specification. That is, terms such as "includes" or "consists of" in this specification should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0074] Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another.

[0075] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0076] When it is stated that one component is "above" or "below" another component, it should be understood that it is not only placed directly above the other component, but that another component may also exist in between.

[0077] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0078] With the cooking appliance placed on the floor, the direction in which the door is installed is defined as the front relative to the center of the appliance. Therefore, the direction in which one opens the door and enters the interior of the appliance is the rear. For convenience, these directions facing forward and rear can be referred to as the first direction. Then, the front can be considered one side of the first direction, and the rear the other side of the first direction.

[0079] In addition, the direction of gravity can be defined as downward, and the direction opposite to the direction of gravity as upward.

[0080] Furthermore, the horizontal direction perpendicular to the front-rear direction of the cooking appliance—that is, the width direction of the cooking appliance when viewed from in front of the door—can be called the left-right direction. For convenience, the left-right direction can be referred to as the second direction. Then, the right side can be considered one side of the second direction, and the left side the other side of the second direction.

[0081] In addition, the width direction of the above cooking device may also be referred to as the lateral direction. Then, the right side can be referred to as one side of the lateral direction, and the left side as the other side of the lateral direction.

[0082] And, the aforementioned up and down directions can be referred to as the third direction. Then, the upward direction can be referred to as one side of the third direction, and the downward direction as the other side of the third direction.

[0083] In addition, the aforementioned up-and-down direction can be referred to as the vertical direction. Then, the front-back direction and the left-right direction, that is, the first direction and the second direction, can be referred to as the horizontal direction.

[0084] Throughout the specification, "A and / or B" means A, B, or A and B unless specifically stated otherwise, and "C to D" means C or more and D or less unless specifically stated otherwise.

[0085] [Overall structure of the cooking appliance]

[0086] FIG. 1 is a perspective view illustrating a cooking appliance according to a first embodiment of the present invention, and FIG. 2 is a plan cross-sectional view showing the internal structure of the cooking appliance illustrated in FIG. 1. FIG. 3 is a bottom view showing the internal structure of the cooking appliance illustrated in FIG. 1, and FIG. 4 is a schematic diagram showing the configuration of a home appliance according to an embodiment of the present invention.

[0087] Referring to FIGS. 1 to 4, the cooking appliance may include a cooktop case (10) and a top plate (20). According to the present embodiment, the exterior of the cooking appliance may be formed by the cooktop case (10) and the top plate (20). The cooktop case (10) is positioned below the top plate (20) and may form the front, back, side, and bottom surfaces of the cooking appliance provided in the form of a cooktop. The top plate (20) is positioned at the top of the cooking appliance and may form the exterior of the top surface of the cooking appliance.

[0088] A receiving space may be formed inside the cooktop case (10). The receiving space formed inside the cooktop case (10) may be open toward the top. As an example, the cooktop case (10) may be formed in a cuboid shape with the top side open. Various internal components constituting a cooking appliance may be received in the receiving space enclosed by the top plate (20) and the cooktop case (10).

[0089] According to the present embodiment, the cooktop case (10) may include a bottom portion (11). The bottom portion (11) forms the bottom surface of the cooktop case (10) and may define the lower boundary surface of the receiving space. The bottom portion (11) is positioned below the top plate (20) and may form a plane parallel to the top plate (20).

[0090] Additionally, the cooktop case (10) may include a side wall portion (13). The side wall portion (13) may form the front, back, and both sides of the cooktop case (10) and may be formed in the shape of a vertical wall extending upward from the edge of the bottom portion (11). Such a side wall portion (13) may define the horizontal boundary surface of the receiving space.

[0091] Additionally, the cooking device may be equipped with a heating unit (30) for heating food to be cooked or a container containing food (hereinafter referred to as "object to be heated"). The cooking device may be equipped with at least one heating unit (30). For example, each heating unit (30) may be provided in a form including a heating coil or a heating wire coil that uses electricity.

[0092] For example, at least a portion of the heating unit (30) may be placed in a receiving space. For instance, the heating unit (30) may be placed within a space enclosed by the cooktop case (10) and the top plate (20), and may be placed below the top plate (20). This heating unit (30) can heat a heating object placed on the top plate (20).

[0093] In this embodiment, the cooking device is exemplified as being provided in the form of an induction heating cooking device. The heating unit (30) of such a cooking device may be provided in a form including a heating coil. The heating unit (30) including the heating coil in this manner can be operated by a high-frequency current applied by an inverter to generate strong magnetic field lines.

[0094] In this way, magnetic field lines generated in the heating unit (30) including the heating coil generate eddy currents in the container, and as the eddy currents flow in the container, heat is generated so that the container can be heated, and as the container is heated, food contained in the container can be heated.

[0095] In addition, the cooking device of the present embodiment may be equipped with a control panel (40). The control panel (40) may be placed on the top plate (20). The control panel (40) may be provided with an operating unit including various switches for controlling the operation of the cooking device. Additionally, the control panel (40) may be further equipped with a display or the like for displaying the operating status of the cooking device.

[0096] For example, at least a portion of the control panel (40) may be placed in a receiving space. For instance, the control panel (40) may be placed within a space enclosed by the cooktop case (10) and the top plate (20), and may be placed below the top plate (20). This heating unit (30) can heat a heating object placed on the top plate (20).

[0097] In addition, according to the present embodiment, the control panel (40) may be positioned further forward than the heating elements (30) provided in the cooking appliance. For example, with respect to the front-rear direction, the control panel (40) may be positioned between the foremost of the heating elements (30) and the front of the cooktop case (10). That is, the control panel (40) may be positioned very close to the front of the cooking appliance.

[0098] The control unit (50) is configured to control the operation of the cooking appliance. For example, the control unit (50) can control the operation of the heating unit (30), etc., based on an operation signal input through the display, input unit, etc. of the control panel (40). In addition, the control unit (50) can also control the operation of the display that indicates the operating status of the cooking appliance.

[0099] Various electrical components may be installed inside the cooking device, that is, in the receiving space. The electrical components placed in the receiving space may be at least one of a main PCB (61), a power processing unit, and a coil control unit, and may be provided in the form of a circuit board electrically connected to the heating coil of the heating unit (30).

[0100] For example, a main PCB is provided for controlling the overall operation of the cooking device and may be placed on a control panel (40). Additionally, a power processing unit is provided to supply power to the heating coil, and the power processing unit may include a switching mode power supply (SMPS), a noise filter (63; EMI filter), etc. And a coil control unit is provided to control the operation of the heating coil, and the coil control unit may include an inverter PCB (65; Inverter PCB), etc.

[0101] In addition, a cooling fan (67) may be provided inside the cooking device. The cooling fan (67) serves to cool electrical components by introducing external air into the cooktop case (10) and supplying it to the receiving space. For example, the cooling fan (67) may be placed below the inverter PCB (65), and such a cooling fan (67) can effectively cool high-heat components such as IGBTs provided on the inverter PCB (65).

[0102] External air introduced into the cooktop case (10) by the cooling fan (67) can be discharged to the outside of the cooking appliance through an exhaust port formed on the side or back of the cooktop case (10) after cooling the electrical components in the receiving space. In this embodiment, the exhaust port is exemplified as being positioned on the back of the cooktop case (10).

[0103] [Overall structure of the sensing module]

[0104] FIG. 5 is an enlarged view illustrating a sensing module according to a first embodiment, and FIG. 6 is an exploded perspective view illustrating the exploded state of the sensing module illustrated in FIG. 5.

[0105] Referring to FIGS. 2 to 5, the cooking device of the present embodiment may further include a sensing module (100). The sensing module (100) may include a sensor (110). The sensor (110) can detect vibrations generated from the top plate (20) and generate a signal. This sensor (110) can detect vibrations generated as a result of a user tapping the top plate (20) and generate a signal corresponding to the detection result.

[0106] Additionally, the sensing module (100) may further include a sensor case (120) as illustrated in FIGS. 4 to 6. The sensor case (120) is provided to support the sensor (110). At least a portion of the sensor case (120) may be in close contact with the top plate (20). The sensor (110) may be connected to the top plate (20) through this sensor case (120).

[0107] Additionally, the sensing module (100) may further include a supporter (130). The supporter (130) may be installed in the cooktop case (10) to support the sensor case (120). For example, the supporter (130) may be coupled to the bottom portion (11) of the cooktop case (10), and the sensor case (120) may be supported by the supporter (130) between the supporter (130) and the top plate (20).

[0108] Additionally, the sensing module (100) may further include an elastic member (140). The elastic member (140) can press the sensor case (120) toward the top plate (20) so that at least a portion of the sensor case (120) can be in close contact with the top plate (20). For example, the elastic member (140) can elastically press the sensor case (120) upward, and accordingly, at least a portion of the sensor case (120) can be in close contact with the top plate (20).

[0109] [Sensor]

[0110] According to the present embodiment, the control unit (50) can control the operation of the heating unit (30) by reflecting knock input information identified based on a signal generated by the sensor (110). For example, the sensor (110) detects vibrations generated as a result of a user tapping the top plate (20) and generates a signal, and the control unit (50) can control the operation of the heating unit (30) by reflecting information identified by the signal generated by the sensor (110).

[0111] For example, the sensor (110) can detect a vibration detection signal corresponding to the vibration and determine whether a knock is input based on the detected vibration detection signal. For instance, the sensor (110) can determine that a knock has been applied when vibration detection signals exceeding a preset threshold are detected continuously at regular intervals.

[0112] In addition, vibration caused by knocking may occur only in the first axis direction among the three axes. For example, vibration caused by knocking may occur only in the direction of any one of the x-axis, y-axis, or z-axis. Considering this, in order to determine whether vibration is caused by knocking, it may be necessary to identify which direction the detected vibration signal is from.

[0113] As another example, the sensor (110) can compare the pattern of the vibration detection signal caused by the knock with the pattern of the actual detected vibration detection signal, and determine whether there is vibration caused by the knock based on the result of this comparison.

[0114] The pattern of the vibration detection signal caused by knocking (hereinafter referred to as the "preset knock signal") can be pre-set. The sensor (110) can compare the pattern of the actually detected vibration detection signal with the pattern of the pre-set knock signal and determine whether there is vibration caused by knocking based on the result of this comparison.

[0115] The sensor (110) can detect vibrations transmitted in all directions. As an example, the sensor (110) may include a vibration sensor having multiple axes. The sensor (110) including such a vibration sensor can detect vibrations transmitted in multiple axial directions.

[0116] That is, the sensor (110) of the present embodiment can detect vibrations transmitted in three axial directions and can detect vibrations corresponding to knocks by combining vibration detection signals corresponding to these three axial directions.

[0117] The sensor (110) may include a 3-axis sensor module (111) and a sensor microcomputer (113).

[0118] As an example, the 3-axis sensor module (111) may include a single 3-axis accelerometer that simultaneously detects vibrations transmitted in three mutually orthogonal directions. The 3-axis accelerometer can detect three-axis components of acceleration with a single sensor. Such a 3-axis accelerometer can detect minute changes in movement (acceleration) of a medium caused by vibration in three mutually orthogonal directions.

[0119] At this time, it is preferable that the 3-axis accelerometer be installed such that the direction of one of the three axes matches the direction of the vibration caused by the knock. By installing the 3-axis accelerometer in this manner, the detection accuracy of the sensor (110) for the knock vibration can be further improved.

[0120] As another example, the 3-axis sensor module (111) may be provided in a form including three independent acceleration sensors. As yet another example, the 3-axis sensor module (111) may be provided in a form including four or more independent acceleration sensors. As the number of acceleration sensors increases, the accuracy of vibration detection by the sensor (110) can be improved.

[0121] At this time, it is preferable that at least one of the multiple acceleration sensors be installed such that the direction of the axis on which the acceleration sensor detects vibration matches the direction of the vibration caused by the knock. When the alignment between the vibration caused by the knock and the direction of one of the three axes is matched in this way, the detection accuracy of the sensor (110) for the knock vibration can be further improved.

[0122] As another example, a 1-axis accelerometer that detects vibration in a 1-axis direction and a 2-axis accelerometer that detects vibration in a 2-axis direction may be applied to the sensor (110). In this case, the sensor (110) needs to be installed so that the direction of vibration caused by a knock applied to the door matches the axial direction of the accelerometer.

[0123] Additionally, the sensor (110) may further include a filter unit (115). The vibration detection signal detected by the sensor (110) may contain unnecessary noise in addition to the vibration detection signal caused by the knock input. The filter unit (115) can serve to remove such noise.

[0124] Additionally, the sensor (110) may further include an amplification unit (117). The signal output after noise is removed in the filter unit (115) can be amplified by the amplification unit (117). The amplified signal can then be input to the sensor microcomputer (113).

[0125] The sensor microcomputer (113) may be configured separately from the control unit (50). Based on the signal output from the amplifier (117), this sensor microcomputer (113) can determine whether the vibration detected by the sensor (110) is a vibration caused by a knock input by the user. If the vibration is determined to be a vibration caused by a knock input by the user, the sensor microcomputer (113) can transmit information related thereto to the control unit (50).

[0126] For example, the sensor microcomputer (113) can determine whether there is vibration caused by knocking based on the result of comparing the pattern of the vibration detection signal generated by the 3-axis sensor module (111) with the pattern of the preset knock signal.

[0127] This sensor microcomputer (113) can extract a vibration detection signal of a set first direction among three-axis vibration detection signals and determine whether there is vibration due to knocking using the extracted first direction vibration detection signal. This is because vibration caused by knocking occurs in a certain first direction.

[0128] Additionally, the sensor microcomputer (113) may determine that the vibration detected by the sensor (110) is a vibration caused by knocking if, after a vibration detection signal in a first direction is input with a magnitude greater than or equal to a preset first threshold, a vibration detection signal in the same direction input within a preset time range is input with a magnitude greater than or equal to a preset second threshold.

[0129] Generally, a knock is applied in the form of a "knock knock," because the vibration corresponding to the "knock knock" typically appears as a signal of a larger magnitude compared to vibrations caused by other factors. Therefore, if the vibration detection signal corresponding to the "knock knock" is greater than or equal to the first threshold and the second threshold, respectively, the sensor microcomputer (113) can determine that the vibration detected by the sensor (110) is a vibration caused by a knock.

[0130] Additionally, the sensor microcomputer (113) can extract a vibration detection signal in one axis direction (first axis direction) that matches the direction of vibration caused by the knock among the three axis direction vibration detection signals, and determine whether there is vibration due to the knock based on the result of comparing the extracted vibration detection signal with the vibration detection signals in the other two axis directions (second and third axis directions).

[0131] For example, if the maximum value of the vibration detection signal in at least one axis direction of the second axis direction or the third axis direction is greater than the maximum value of the vibration detection signal in the first axis direction, the sensor microcomputer (113) may determine that the vibration detected by the sensor (110) is not a vibration caused by knocking.

[0132] When the control unit (50) receives a signal corresponding to vibration caused by knocking (hereinafter referred to as a "knock-on signal") from the sensor (110), more specifically the sensor microcomputer (113), it can control the operation of the heating unit (30) by reflecting the knock input information included in the signal.

[0133] According to the present embodiment, the 3-axis sensor module (111) and the sensor microcomputer (113) can be mounted on a single PCB board and can be configured as an integrated module-type sensor (110) together with the PCB board. Additionally, if the sensor (110) further includes a filter unit (115) and an amplification unit (117), the 3-axis sensor module (111), the sensor microcomputer (113), the filter unit (115), and the amplification unit (117) can be configured as an integrated module-type sensor (110) mounted on a single PCB board.

[0134] In this way, by implementing the sensor (110) in the form of an integrated module, the installation of the sensor (110) can be easily performed, and the installation location of the sensor (110) can be diversified.

[0135] [Sensor Case]

[0136] FIG. 7 is a plan view of the sensing module illustrated in FIG. 5. FIG. 8 is a cross-sectional view showing the internal structure of the sensing module illustrated in FIG. 5.

[0137] Referring to FIGS. 6 through 8, the sensor case (120) may include a case body (121). The case body (121) forms most of the frame and exterior of the sensor case (120) and may accommodate at least a portion of the sensor (110) inside. This case body (121) may be connected to the sensor (110) so that vibrations can be transmitted to the sensor (110) through the case body (121).

[0138] Additionally, the sensor case (120) may include a horizontal surface portion (121a). The horizontal surface portion (121a) may be positioned to block the space between the sensor (110) and the top plate (20). This horizontal surface portion (121a) may form the upper surface of the case body (121).

[0139] For example, the horizontal surface (121a) may form a plane parallel to the top plate (20) or a plane parallel to the circuit board on which the sensor (110) is mounted. For instance, the bottom surface of the horizontal surface (121a) may form a horizontal plane parallel to the sensor (110), more specifically, a circuit board on which the component constituting the sensor (110) is mounted.

[0140] Additionally, the sensor case (120) may include a vertical surface portion (121b). The vertical surface portion (121b) may form a vertical plane that surrounds the horizontal surface portion (121a) from the outside in the horizontal direction. This vertical surface portion (121b) may form the front, back, and both sides of the case body (121).

[0141] For example, the vertical surface (121b) may be formed in a shape that protrudes downward from the horizontal surface (121a). The sensor (110) may be accommodated within the space enclosed by the horizontal surface (121a) and the vertical surface (121b).

[0142] The sensor (110) can be connected to the sensor case (120) at the lower side of the horizontal surface portion (121a). According to the present embodiment, the sensor case (120) may include a fastening structure protruding from the horizontal surface portion (121a).

[0143] As an example, the above-mentioned fastening structure may include a locking projection (121c) and a hook projection (121d) protruding downward from the horizontal surface portion (121a). For instance, the locking projection (121c) and the hook projection (121d) may be spaced apart in the front-rear or lateral direction with the sensor (110) in between, and the sensor (110) may be detachably coupled to the sensor case (120) through coupling with them.

[0144] That is, the sensor (110) can be connected to the sensor case (120) by being coupled to the lower side of the horizontal surface portion (121a), so that vibration can be transmitted to the sensor (110) through the sensor case (120).

[0145] Additionally, the sensor case (120) may further include a contact projection (123). The contact projection (123) may protrude from the case body (121) toward the top plate (20). This contact projection (123) may be formed in a shape that protrudes upward from the upper surface of the case body (121), for example, the horizontal surface portion (121a).

[0146] Vibrations generated from the top plate (20) can be transmitted to the case body (121) through the contact protrusion (123) in contact with the top plate (20). The vibration transmitted to the case body (121) in this manner is then transmitted to the sensor (110), and the presence of vibration caused by a knock can be identified by the sensor (110).

[0147] According to the present embodiment, the sensor case (120) may include a plurality of contact protrusions (123), and a plurality of contact protrusions (123) may be spaced apart and arranged on the upper surface of the sensor case (120). As an example, the contact protrusions (123) may be arranged such that one contact protrusion (123) is placed at each vertex of a rectangle.

[0148] The sensor case (120), which includes contact protrusions (123) arranged at multiple points in this manner, can make close contact with the top plate (20) at multiple points. Accordingly, even if the flatness of the sensor case (120) formed as an injection molded part is not excellent, for example, even if the upper surface of the sensor case (120) formed by the horizontal surface portion (121a) is formed unevenly, contact between the sensor case (120) and the top plate (20) can be reliably made at multiple points.

[0149] That is, the sensor case (120) of the present embodiment, which includes a plurality of contact protrusions (123) arranged at multiple points, can effectively contribute to ensuring that vibrations generated from the top plate (20) are transmitted well to the sensor (110) through the sensor case (120) by ensuring reliable contact between the sensor case (120) and the top plate (20).

[0150] Additionally, the contact protrusion (123) may be positioned between the top plate (20) and the horizontal surface (121a). By protruding from the horizontal surface (121a) toward the top plate (20), the contact protrusion (123) may come into contact with the top plate (20), thereby separating at least a portion of the horizontal surface (121a) from the top plate (20). For example, most of the area of ​​the sensor case (120), excluding the contact protrusion (123), may be separated from the top plate (20) by a distance corresponding to the vertical length of the contact protrusion (123).

[0151] That is, the contact protrusion (123) limits the area of ​​the sensor case (120) that contacts the top plate (20) to the contact protrusion (123), and can space most of the sensor case (120) apart from the top plate (20) by a predetermined distance. The sensor case (120) of the present embodiment including such a contact protrusion (123) can effectively protect the sensor (110) from the influence of heat transmitted from the top plate (20) by suppressing heat conduction from the top plate (20) to the sensor case (120) to a minimum.

[0152] [supporter]

[0153] According to the present embodiment, the supporter (130) may include a supporter body (131). The supporter body (131) forms most of the frame and exterior of the supporter (130) and may be installed in a cooktop case (10).

[0154] The supporter body (131) may include a horizontal support member (131a). The horizontal support member (131a) may be received inside the cooktop case (10) and may be positioned between the bottom part (11) and the sensor case (120). This horizontal support member (131a) may be positioned at a predetermined distance upward from the bottom part (11) of the cooktop case (10).

[0155] Additionally, the supporter body (131) may include a vertical support member (131b). The vertical support member (131b) may be positioned between the bottom part (11) and the horizontal support member (131a). This vertical support member (131b) may be combined with the bottom part (11) and fixed to the cooktop case (10), and may support the horizontal support member (131a) from below.

[0156] For example, a pair of vertical support members (131b) may be positioned on both the front and rear or lateral sides of the horizontal support member (131a). By means of these vertical support members (131b), the horizontal support member (131a) can be stably connected to the cooktop case (10) at a predetermined distance from the bottom member (11).

[0157] According to the present embodiment, the sensor case (120) may be coupled to a supporter (130) so as to be movable in a direction toward or away from the top plate (20). To this end, the supporter (130) may include support rods (133, 134). The support rods (133, 134) may protrude from the supporter body (131).

[0158] Accordingly, the sensor case (120) may further include lifting support members (125, 126). The lifting support members (125, 126) may be movably coupled to support rods (133, 134). That is, the lifting support members (125, 126) may movably coupled the sensor case (120) to a supporter (130).

[0159] For example, the support rod (133, 134) may be formed in a column shape protruding upward from the horizontal support member (131a), and the lifting support member (125, 126) may be connected to the support rod (133, 134) so ​​as to be able to lift and lower, thereby supporting the case body (121) on the supporter (130) so as to be able to lift and lower.

[0160] For example, a fitting hole may be formed in the lifting support member (125, 126) to penetrate in the vertical direction, and a support rod (133, 134) may be fitted into the lifting support member (125, 126) through this fitting hole. The support rod (133, 134) is fitted into the lifting support member (125, 126) in this manner to allow the lifting of the lifting support member (125, 126) and to restrict the horizontal movement of the lifting support member (125, 126).

[0161] The lifting support members (125, 126) can be movably coupled to the supporter (130) on the lateral outer side of the sensor (110). For example, the lifting support members (125, 126) and the support rods (133, 134) can both be positioned on the lateral outer side of the sensor (110), and the lifting support members (125, 126) can be movably coupled to the support rods (133, 134) on the lateral outer side of the sensor (110).

[0162] The above lifting support members (125, 126) may include a first lifting support member (125). In this embodiment, the shape of the case body (121) viewed from above is exemplified as a rectangle. As an example, the shape of the case body (121) viewed from above may be a rectangle with a longer lateral length than the front-rear length, as shown in FIG. 7.

[0163] Additionally, a plurality of lifting support members (125, 126) may be arranged symmetrically in the front-rear or lateral direction with respect to the sensor (110), or symmetrically in the front-rear and lateral directions. Correspondingly, a plurality of support rods (133, 134) may also be arranged symmetrically in the front-rear or lateral direction with respect to the sensor (110), or symmetrically in the front-rear and lateral directions.

[0164] As an example, a pair of first lifting support members (125) may be arranged spaced apart laterally. For instance, the first lifting support member (125) may be arranged on the lateral outer side of the sensor (110), such that the first lifting support member (125) is arranged on the left side of the sensor (110) and the first lifting support member (125) is also arranged on the right side of the sensor (110).

[0165] Accordingly, the support rods (133, 134) may include a first support rod (133). In the supporter (130), at least one pair of first support rods (133) may be arranged laterally spaced apart. For example, at least one pair of first support rods (133) may be arranged laterally outside the sensor (110), such that at least one first support rod (133) is arranged to the left of the sensor (110) and at least one first support rod (133) is arranged to the right of the sensor (110).

[0166] In this case, a plurality of first lifting support members (125) and a plurality of first support rods (133) can each be arranged symmetrically laterally around the sensor (110). Accordingly, the arrangement of the points where the first lifting support members (125) and the first support rods (133) are joined can also be symmetrically arranged laterally around the sensor (110).

[0167] In this embodiment, a pair of first support rods (133) are exemplified as being placed on the left and right sides of the sensor (110). As an example, a pair of first support rods (133) may be arranged in the front-rear direction on the left side of the sensor (110), and a pair of first support rods (133) may also be arranged in the front-rear direction on the right side of the sensor (110). For instance, the first support rods (133) may be arranged such that one first support rod (133) is placed at each vertex of a rectangle.

[0168] In this case, the first support rods (133) positioned on the left side of the sensor (110) can each be fitted into the first lifting support member (125) positioned on the left side of the sensor (110), and the first support rods (133) positioned on the right side of the sensor (110) can each be fitted into the first lifting support member (125) positioned on the right side of the sensor (110).

[0169] Additionally, the lifting support members (125, 126) may further include a second lifting support member (126). In this embodiment, a pair of second lifting support members (126) are exemplified as being positioned on the front and rear outer sides of the sensor (110).

[0170] For example, a pair of second lifting support members (126) may be spaced apart in the front-rear direction with the sensor (110) in between. They may also be spaced apart laterally between a pair of first lifting support members (125). Preferably, the second lifting support members (126) may be positioned at a location that divides the space between the pair of first lifting support members (125) in half.

[0171] Accordingly, the support rods (133, 134) may further include a second support rod (134). In this embodiment, a pair of second support rods (134) are exemplified as being positioned on the front and rear outer sides of the sensor (110).

[0172] As an example, a pair of second support rods (134) may be spaced apart in the front-rear direction with the sensor (110) in between. And they may be spaced apart laterally between a pair of first support rods (133).

[0173] And these can be positioned between the first support rod (133) positioned on the left side of the sensor (110) and the first support rod (133) positioned on the right side of the sensor (110). Preferably, the support rod (134) positioned on the front and rear outer side of the sensor (110) can be positioned at a location that divides the space between the first support rod (133) positioned on the left side of the sensor (110) and the first support rod (133) positioned on the right side of the sensor (110) in half.

[0174] In this case, the second support rod (134) positioned on the front side of the sensor (110) can be fitted into the second lifting support member (126) positioned on the front side of the sensor (110), and the second support rod (134) positioned on the rear side of the sensor (110) can be fitted into the second lifting support member (126) positioned on the rear side of the sensor (110).

[0175] In this case, a plurality of second lifting support members (126) and a plurality of second support rods (134) can each be arranged symmetrically in the front-rear direction with respect to the sensor (110). Accordingly, the arrangement of the points where the second lifting support members (126) and the second support rods (134) are joined can also be symmetrically arranged in the front-rear direction with respect to the sensor (110).

[0176] Consequently, a plurality of lifting support members (125, 126) and a plurality of support rods (133, 134) can each be arranged symmetrically in the front-rear and lateral directions with respect to the sensor (110). Accordingly, the arrangement of the points where the lifting support members (125, 126) and the support rods (133, 134) are joined can also be symmetrically arranged in the front-rear or lateral directions with respect to the sensor (110).

[0177] In addition, the first lifting support member (125) and the first support rod (133) can be connected at at least 4 points, and the second lifting support member (126) and the second support rod (134) can be connected at at least 2 points. That is, the lifting support member (125, 126) and the support rod (133, 134) can be connected at at least 6 points.

[0178] Accordingly, the sensor case (120) can be supported by the supporter (130) at multiple points, at least six points, and at multiple points arranged symmetrically in the front-rear or lateral directions. As a result, the sensor case (120) can be raised and lowered while being very stably supported by the supporter (130), so the posture of the sensor case (120) is maintained stably, and sufficient conditions are provided for the sensor case (120) to effectively adhere to the top plate (20).

[0179] Additionally, the supporter (130) may further include a support wall (135). The support wall (135) may protrude upward from the supporter body (131). In this embodiment, the support wall (135) is exemplified as protruding upward from the horizontal support portion (131a).

[0180] As an example, the supporter (130) may include a pair of support walls (135). This pair of support walls (135) may be spaced apart laterally with the sensor case (120) in between.

[0181] Accordingly, the sensor case (120) may include a pair of sliding hooks (127). The pair of sliding hooks (127) may be spaced apart laterally with the case body (121) in between.

[0182] Each sliding hook (127) is provided to be connected to an adjacent support wall (135). By being movably connected to the support wall (135), the sensor case (120) can be movably connected to the support wall (135).

[0183] A hook slot (136) may be formed in the support wall (135). For example, the hook slot (136) may be formed to penetrate the support wall (135) laterally and may be formed in a shape where the vertical length is longer than the vertical length. Such a hook slot (136) may form a passage in the support wall (135) necessary for the movement of the sliding hook (127) coupled to the support wall (135).

[0184] The sliding hook (127) may be positioned to face the support wall (135) laterally. This sliding hook (127) may be coupled to the support wall (135) so as to be slidable up and down along the support wall (135).

[0185] A protrusion (127a) may be provided on the sliding hook (127). The protrusion (127a) is a portion of the sliding hook (127) that protrudes laterally, and as this protrusion (127a) is inserted into the hook slot (136), the sliding hook (127) can be vertically coupled to the support wall (135). By this coupling between the sliding hook (127) and the support wall (135), both sides of the sensor case (120) can be vertically coupled to the support wall (135).

[0186] The protrusion (127a) can be connected to the case body (121) through the connecting part (127b). The connecting part (127b) can be formed in a shape that protrudes downward from the vertical surface (121b) of the case body (121). The protrusion (127a) can be positioned below the case body (121) and can be connected to the case body (121) through the connecting part (127b). The protrusion (127a) can protrude laterally from the bottom of the connecting part (127b).

[0187] The connecting portion (127b) may be provided to be elastically deformable in a lateral direction, and the position of the protrusion (127a) may change according to the deformation state of the connecting portion (127b). Accordingly, the protrusion (127a) may be inserted into the hook slot (136) from the outside of the support wall (135), or may be detached from the hook slot (136) and separated from the support wall (135).

[0188] The upper portion of the protrusion (127a) can form a horizontal plane that protrudes laterally from the connecting portion. Additionally, the protrusion (127a) can be formed in a shape where the degree of protrusion decreases as it goes downward. Accordingly, the outer surface of the protrusion (127a) can form an inclined surface.

[0189] Additionally, the upper end of the hook slot (136) may be positioned at a predetermined distance in the vertical direction from the upper end of the support wall (135). That is, the hook slot (136) is formed only on the vertical inner side of the support wall (135), and the upper end of the hook slot (136) is not open to the upper side of the support wall (135). The support wall (135) having such a hook slot (136) formed therein can limit the vertical movement range of the sliding hook (127).

[0190] For example, if the protrusion (127a) that was moving upward gets caught on the upper part of the hook slot (136) inside the hook slot (136), in other words, on the inner upper surface of the support wall (135), the upward movement of the sliding hook (127) may be restricted. The coupling structure between the support wall (135) and the sliding hook (127) of this type can contribute to stably maintaining the coupling state between the sensor case (120) and the supporter (130) while allowing the sensor case (120) to move up and down within a limited range.

[0191] [Structure for elastically supporting the sensor case]

[0192] As described above, the sensing module (100) of the present embodiment may include an elastic member (140). The elastic member (140) can be supported by a supporter (130) to elastically support the sensor case (120). Due to the action of this elastic member (140), at least a portion of the sensor case (120) can be in close contact with the top plate (20) between the supporter (130) and the top plate (20).

[0193] According to the present embodiment, the sensing module (100) may include a plurality of elastic members (140), and each elastic member (140) may be installed on a support rod (133, 134). For example, the sensing module (100) may be provided with a number of elastic members (140) corresponding to the number of support rods (133, 134), and each elastic member (140) may be installed on each support rod (133, 134).

[0194] As an example, each elastic member (140) may include a coil spring that is configured to be extendable in the vertical direction. The coil spring may be coupled to a support rod (133, 134). A hollow is formed in the coil spring that penetrates the coil spring in the vertical direction, and the support rod (133, 134) may be fitted into the coil spring through this hollow.

[0195] The support rods (133, 134) are fitted onto the coil spring to allow vertical extension of the coil spring, while restricting horizontal movement of the coil spring. That is, the horizontal movement of the elastic member (140) is restricted by the support rods (133, 134), but the vertical extension of the elastic member (140) can be carried out smoothly without being hindered by the support rods (133, 134).

[0196] The lower part of the coil spring can be supported by a supporter (130). As an example, the lower end of the coil spring can be supported by a support rib (131c) protruding centrifugally from the outer surface of the support rod (133, 134). The support rib (131c) protrudes from the outer surface of the support rod (133, 134) and the upper surface of the transverse support member (131a) to strengthen the connection between the support rod (133, 134) and the supporter body (131) and to support the coil spring from below. As another example, the lower end of the coil spring may be supported by the upper surface of the supporter body (131).

[0197] Additionally, the coil spring can support the lifting support member (125, 126) upward. For example, the coil spring may support the lifting support member (125, 126) upward with the upper end of the coil spring in contact with the lower end of the lifting support member (125, 126), or the coil spring may support the lifting support member (125, 126) with the upper end of the coil spring combined with the lifting support member (125, 126).

[0198] As described above, in this embodiment, a plurality of support rods (133, 134) may be arranged symmetrically in the front-rear or lateral direction with respect to the sensor (110), or symmetrically in the front-rear and lateral directions, and each elastic member (140) may be installed on each of the support rods (133, 134). Accordingly, the plurality of elastic members (140) may be arranged symmetrically in the front-rear or lateral direction with respect to the sensor (110), or symmetrically in the front-rear and lateral directions.

[0199] Accordingly, the sensor case (120) can be elastically supported by the elastic member (140) at multiple points, at least six points, and at multiple points arranged symmetrically in the front-rear or lateral directions. As a result, the sensor case (120) can be effectively attached to the top plate (20) while maintaining a balanced posture.

[0200] Additionally, the placement position of the contact protrusion (123) can be determined by considering the placement structure of the elastic member (140) as described above. As an example, each contact protrusion (123) may be placed between two adjacent elastic members (140; hereinafter referred to as "two adjacent elastic members").

[0201] For example, the contact protrusion (123) may be disposed between the elastic member (140) disposed on the left side of the sensor (110) and the elastic member (140) disposed on the front side of the sensor (110), between the elastic member (140) disposed on the right side of the sensor (110) and the elastic member (140) disposed on the front side of the sensor (110), between the elastic member (140) disposed on the left side of the sensor (110) and the elastic member (140) disposed on the rear side of the sensor (110), and between the elastic member (140) disposed on the right side of the sensor (110) and the elastic member (140) disposed on the rear side of the sensor (110).

[0202] Each contact projection (123) is positioned between the two closest elastic members (140) in this manner, and can be positioned between them in both the lateral and front-rear directions. Preferably, each contact projection (123) can be positioned at a location that divides the space between the two closest elastic members (140) in the lateral direction and at a location that divides the space in the front-rear direction.

[0203] Accordingly, the pressure exerted by the elastic member (140) on the plurality of contact protrusions (123) provided in the sensor case (120) can be applied uniformly, so that the sensor case (120) is balancedly supported by the elastic member (140) and the contact protrusions (123) can be effectively adhered to the top plate (20).

[0204] [Sensing Module Layout Structure]

[0205] As an example, as illustrated in FIGS. 1 to 4, a plurality of heating units (30) may be provided inside the cooktop case (10), that is, in the receiving space. According to the present embodiment, a first heating unit (31), a second heating unit (33), and a third heating unit (35) may be arranged in the receiving space.

[0206] According to the present embodiment, the first heating unit (31) and the second heating unit (33) may be positioned further forward than the third heating unit (35). That is, with respect to the front-rear direction, the first heating unit (31) and the second heating unit (33) may be positioned between the control panel (40) and the third heating unit (35).

[0207] Additionally, the first heating unit (31) and the second heating unit (33) may be arranged at a predetermined distance apart in the lateral direction. For example, when the receiving space is divided into a left area and a right area, the first heating unit (31) may be placed in the right area, and the second heating unit (33) and the third heating unit (35) may be placed in the left area.

[0208] According to this, the first heating unit (31) and the second heating unit (33) are arranged at a predetermined distance apart in the lateral direction, and the first heating unit (31) and the third heating unit (35) are arranged at a predetermined distance apart in the lateral direction. In addition, the second heating unit (33) and the third heating unit (35) arranged in the left area can be arranged along the front-rear direction.

[0209] In addition, various electrical components may be placed in the above-mentioned receiving space. For example, a control panel (40), a power processing unit, and a coil control unit may be placed in the receiving space, and among these, the control panel (40) may be placed at the forefront.

[0210] At least one of the above electrical components may be positioned between a pair of heating sections spaced apart laterally by a predetermined distance. As an example, at least one of the above electrical components may be positioned between the first heating section (31) and the second heating section (33). Hereinafter, the electrical component positioned between the first heating section (31) and the second heating section (33) will be referred to as the "first electrical component."

[0211] As another example, one or more heating units may be provided in a form that each includes a plurality of heating coils. In this case, an electrical component, particularly a first electrical component, may be positioned between a plurality of heating coils arranged in a transverse direction. For example, the first electrical component may be positioned between a pair of heating coils spaced apart by a predetermined distance in the front-rear direction, or between a pair of heating coils spaced apart by a predetermined distance in the lateral direction.

[0212] In this embodiment, a configuration in which a first electrical component is placed between the first heating section (31) and the second heating section (33) is exemplified.

[0213] According to the present embodiment, the control panel (40), the power processing unit, and the coil control unit, etc., may each include circuit boards. At least one of these circuit boards may be electrically connected to at least one of the first heating unit (31), the second heating unit (33), and the third heating unit (35). At least one of these circuit boards may be placed between the first heating unit (31) and the second heating unit (33).

[0214] As an example, at least one of a switching mode power supply, a noise filter (63, 34), and an inverter PCB (65, 66) may be disposed between the first heating unit (31) and the second heating unit (33). In this embodiment, the noise filter (63) is exemplified as being disposed between the first heating unit (31) and the second heating unit (33). That is, in this embodiment, the first electrical component is exemplified as being the noise filter (63). However, the present invention is not limited thereto, and the object of the first electrical component may vary in various ways depending on the results of the electrical component placement design.

[0215] In addition, according to the present embodiment, the control panel (40) and the main PCB (61) installed therein may be positioned further forward than the heating sections arranged on both sides of the first electrical component (63). For example, the control panel (40) and the main PCB (61) may be positioned on the front side of the first heating section (31), the second heating section (33), and the first electrical component (63).

[0216] The sensing module (100) can also be placed in the same space as the space where the heating unit (30) and other electrical components are placed, that is, in the receiving space inside the cooktop case (10). This sensing module (100) can be placed in the space formed between a pair of heating units spaced apart laterally, such as the first heating unit (31) and the second heating unit (33). That is, the sensing module (100) can be placed between the first heating unit (31) and the second heating unit (33) with respect to the lateral direction.

[0217] For example, the sensing module (100) may be placed in a space surrounded by a pair of heating parts and a first electrical component (63). For instance, the sensing module (100) may be placed in a space surrounded by a first heating part (31) on the left, a first electrical component (63) behind it, and a second heating part (33) on the right.

[0218] Additionally, the sensing module (100) may be positioned on the rear side of the control panel (40). Accordingly, the sensing module (100) may be positioned in a space surrounded by a pair of heating units and the control panel (40). For example, the sensing module (100) may be positioned in a space surrounded by the first heating unit (31) on the left, the control panel (40) on the front side, and the second heating unit (33) on the right side.

[0219] Additionally, the sensing module (100) may be placed in a space surrounded by a pair of heating units, a first electrical component (63), and a control panel (40). For example, the sensing module (100) may be placed in a space surrounded by a first heating unit (31) on the left, a first electrical component (63) at the rear, a second heating unit (33) on the right, and a control panel (40) at the front. That is, the sensing module (100) may be placed between the first heating unit (31) and the second heating unit (33) in the lateral direction, and between the control panel (40) and the first electrical component (63) in the front-rear direction.

[0220] When examining the state of the receiving space, the right area of ​​the receiving space is mostly filled with the first heating unit (31), the inverter PCB (65) connected thereto, the noise filter (64), the control panel (40), etc. In the left area of ​​the receiving space, a larger number of heating units are arranged than in the right area. That is, the left area of ​​the receiving space is mostly filled with the second heating unit (33), the third heating unit (35), and the inverter PCB (66) connected thereto.

[0221] As described above, the first heating unit (31) and the second heating unit (33) are arranged with a predetermined distance apart in the lateral direction, and the first heating unit (31) and the third heating unit (35) are arranged with a predetermined distance apart in the lateral direction. This arrangement is intended to avoid interference between two cooking vessels placed on top of each other when the first heating unit (31) and the second heating unit (33) are operated simultaneously or when the first heating unit (31) and the third heating unit (35) are operated simultaneously.

[0222] Accordingly, the central area, which is the area between the left area and the right area, has spatial space compared to the left area and the right area. That is, a certain amount of space is formed between the first heating section (31) and the second heating section (33), and between the first heating section (31) and the third heating section (35), and the first electrical component (63) can be placed in this space.

[0223] As an example, the first electrical component (63) may be an electrical component electrically connected to at least one of the first heating unit (31), the second heating unit (33), and the third heating unit (35). For instance, the first electrical component (63) may be a noise filter (63) electrically connected to the second heating unit (33) and the third heating unit (35).

[0224] According to this, the free space formed as a result of securing the distance between the first heating section (31) and the second heating section (33) and the free space formed as a result of securing the distance between the first heating section (31) and the second heating section (33) is used as a space required for the placement of the first electrical component (63). That is, the first electrical component (63) is placed in the free space formed as a result of securing the distance between the first heating section (31) and the second heating section (33) and the distance between the first heating section (31) and the second heating section (33).

[0225] And as the first electrical component (63) is placed in the available space in this way, the first electrical component (63) can be placed in a position very close to the first heating unit (31), the second heating unit (33), and the third heating unit (35). When the first electrical component (63) is placed in this way, the wiring connection structure between the heating unit (30) and the first electrical component (63) is simplified, and the wiring length can also be shortened.

[0226] The sensing module (100) may be placed in the above-mentioned free space. For example, the first electrical component (63) and the sensing module (100) may be placed in the space formed between the first heating part (31) and the second heating part (33) which are spaced apart laterally.

[0227] If the cooking device includes one heating element, that is, if the cooking device includes only the first heating element (31), the first electrical component (63) and the sensing module (100) may be placed in the space formed between the side wall (13) of the cooktop case (10) and the first heating element (31).

[0228] For example, a first electrical component (63) and a sensing module (100) may be placed between either the left side or the right side of the cooktop case (10) and the first heating unit (31), or the first electrical component (63) may be placed on either the left side or the right side of the cooktop case (10) and the sensing module (100) may be placed on the other side of the left side or the right side of the cooktop case (10).

[0229] In this embodiment, the heating unit (30) includes a first heating unit (31), a second heating unit (33), and a third heating unit (35), and a first electrical component and a sensing module (100) are arranged between the first heating unit (31) and the second heating unit (33).

[0230] For example, the sensing module (100) may be placed in a space surrounded by the first heating part (31), the first electrical component (63), and the second heating part (33). That is, the sensing module (100) may be placed in the space above, but on the front side of the first electrical component (63).

[0231] For example, when the receiving space is divided into a front area and a rear area, the first electrical component (63) can be positioned over both the front and rear areas, for instance, at the center of the receiving space in the front-rear direction. And the sensing module (100) can be positioned in the front area. This is a result of considering that most knock inputs occur in the area skewed toward the front of the cooking device.

[0232] Typically, when a user taps the top plate (20) to input a knock, they tap an area located in front of the cooking vessel placed on the top plate (20). This is much more natural than tapping the top plate (20) by extending the arm further back than the cooking vessel.

[0233] Considering these points, it can be said that placing the sensing module (100) in the front area is much more advantageous than placing it in the rear area. As the sensing module (100) is placed in the front area, the distance between the knock input point and the sensing module (100) is shortened, and as a result, the detection accuracy of the sensor (110) for knock vibration can be further improved.

[0234] In addition, when the sensing module (100) is positioned in the front area, the distance between the knock input point and the sensing module (100) becomes shorter than the distance between the cooking vessel and the sensing module (100), and the possibility of the vibration generated on the top plate (20) by the knock input being transmitted directly to the sensing module (100) without passing through the cooking vessel placement point increases.

[0235] That is, when the sensing module (100) is placed in the front area, the distance between the knock input point and the knock detection point becomes shorter than the distance between the vibration generation point caused by the cooking vessel and the knock detection point, and the possibility of the vibration generated on the top plate (20) by the knock input being transmitted directly to the sensing module (100) without passing through the cooking vessel placement point increases.

[0236] When food placed in a cooking container on the top plate (20) boils up, vibrations generated from the cooking container are transmitted to the top plate (20), and this may act as a factor that reduces the accuracy of knock vibration detection by the sensor (110).

[0237] Considering these points, in this embodiment, the sensing module (100) is positioned in the front area. Accordingly, the distance between the knock input point and the knock detection point can be made much shorter compared to the distance between the point where vibration occurs due to the cooking vessel and the knock detection point. In addition, the risk that the shape of the vibration caused by the knock input may be distorted by the vibration caused by the cooking vessel can be significantly reduced.

[0238] That is, the cooking device of the present embodiment can effectively improve the accuracy of the knock detection operation of the sensor (110) by positioning the sensing module (100) in the front area.

[0239] The control panel (40) adjacent to the sensing module (100) may be equipped with various circuits and switches for controlling the operation of the cooking device, and a display for indicating the operating status of the cooking device. To ensure smooth operation, the control panel (40) and its surrounding area are maintained at a relatively lower temperature compared to other areas.

[0240] According to the present embodiment, the sensing module (100) is positioned in a front area, specifically in an area very close to the control panel (40). By positioning the sensing module (100) in an area adjacent to the control panel (40) that maintains a lower temperature compared to other areas, the risk of the sensor (110) malfunctioning or being damaged due to thermal influence can be significantly reduced.

[0241] The cooking device of the present embodiment as described above can effectively reduce the risk of malfunction and damage to the sensor (110) while providing a high level of knock detection performance by positioning the sensor (110) in an area that is close to a normal knock input point and maintained at a low temperature.

[0242] Meanwhile, the sensor (110) can be electrically connected to the control panel (40), more specifically the main PCB (61), via a wire (w) (see FIG. 9). As the sensing module (100) is positioned in an area very close to the control panel (40) as described above, the wiring connection structure between the sensor (110) and the main PCB (61) is simplified, and the wiring length can be effectively shortened.

[0243] As described above, the sensing module (100) provided can be used to control the operation of the cooking appliance by means of a knock input, that is, by the user tapping the top plate (20). In other words, the cooking appliance equipped with the sensing module (100) of the present embodiment can provide a function that allows the operation of the cooking appliance to be controlled by only a knock motion.

[0244] According to the present embodiment, various operations of the cooking device can be controlled depending on the type of knock input. For example, the corresponding operation control may vary depending on the number of times the user taps the top plate (20). For instance, if the user taps the top plate (20) once, the heat of the heating unit (30) in operation increases, if the user taps the top plate (20) twice, the heat of the heating unit (30) in operation increases, and if the user taps the top plate (20) three times, the operation of the heating unit (30) may be stopped.

[0245] As described above, the cooking device of the present embodiment may provide an operation control function by knock input, and this function may be used not only to control the heat of the heating unit (30) but also to control various other functions. For example, the operation control function by knock input provided by the cooking device of the present embodiment may be used for turning the heating unit (30) on / off, selecting the heating unit (30) to be operated, adjusting the timer, etc.

[0246] [Second Example of a Sensing Module]

[0247] FIG. 10 is an enlarged view illustrating a sensing module according to a second embodiment of the present invention, and FIG. 11 is an exploded perspective view illustrating the exploded state of the sensing module illustrated in FIG. 10. FIG. 12 is a cross-sectional view showing the internal structure of the sensing module illustrated in FIG. 10, and FIG. 13 is a diagram schematically showing the connection state between the sensor and the control panel illustrated in FIG. 10.

[0248] Referring to FIGS. 10 to 13, the sensing module (200) according to the second embodiment of the present invention is provided in a form that is directly installed on the top plate (20). That is, unlike the sensing module exemplified in the previous embodiment, the sensing module (200) of this embodiment is not installed on the cooktop case (10) through a supporter, but can be directly fixed to the top plate (20).

[0249] For example, the sensing module (200) of the present embodiment comprises a sensor (110) and a sensor case (220), and does not include a supporter. The sensor case (220) may be formed in a roughly cuboid shape similar to the sensor case exemplified in the previous embodiment. Such a sensor case (220) may include a case body (221) comprising a horizontal surface portion (221a) and a vertical surface portion (221b).

[0250] The horizontal surface portion (221a) can form a plane parallel to the top plate (20) and a plane parallel to the circuit board on which the sensor (110) is mounted. For example, the upper surface of the horizontal surface portion (221a) can form a horizontal plane parallel to the lower surface of the top plate (20), and the lower surface of the horizontal surface portion (221a) can form a horizontal plane parallel to the circuit board of the sensor (110).

[0251] The vertical surface (221b) may be formed in a shape that protrudes downward from the horizontal surface (221a). The sensor (110) may be accommodated within the space enclosed by the horizontal surface (221a) and the vertical surface (221b).

[0252] As described above, the sensing module (200) of the present embodiment is provided in a form that is directly installed on the top plate (20), and for this purpose, the sensing module (200) of the present embodiment may further include an attachment material (250). The attachment material (250) can attach the sensor case (220) to the top plate (20) by adhering at least a portion of the horizontal surface portion (221a) to the top plate (20).

[0253] For example, the adhesive material (250) may be a sealant applied between the upper surface of the sensor case (220) and the lower surface of the top plate (20). For instance, a silicone sealant with excellent heat resistance may be applied as the adhesive material (250), and the sensor case (220) may be firmly attached to and fixed to the top plate (20) by the adhesive material (250) at the lower side of the top plate (20).

[0254] A groove (222) may be provided in the sensor case (220). The groove (222) may be formed in a shape in which a portion of the upper surface of the horizontal surface (221a) is recessed downward. An attachment material (250) may be filled into the space formed between the groove (222) and the top plate (20) and attached to the sensor case (220) and the top plate (20).

[0255] For example, the groove (222) may be positioned on the inner side in the horizontal direction of the horizontal surface (221a) and may be formed in a shape similar to the outer shape of the horizontal surface (221a). For instance, the horizontal shape of the horizontal surface (221a) may be a square shape, and the horizontal shape of the groove (222) may be formed in a smaller square ring shape.

[0256] The groove (222) formed in this manner can serve to prevent the adhesive material (250) from leaking out to the lateral outer side of the sensor case (220). Additionally, the groove (222) can serve to strengthen the bonding strength between the sensor case (220) and the top plate (20) by increasing the coating thickness of the adhesive material (250) by the depth of the groove (222).

[0257] The sensing module (200) of the present embodiment as described above is provided with a simpler structure compared to the sensing module exemplified in the previous embodiment and is installed in the cooking appliance so as to be firmly attached to the top plate (20), thereby reducing the cost of installing the sensing module (200) while effectively improving the accuracy of the knock detection operation of the sensor (110).

[0258] Meanwhile, the placement location of the sensing module (200) in this embodiment may be set to be the same or similar to the placement location of the sensing module (200) exemplified in the previous embodiment. A cooking appliance including such a sensing module (200) can effectively reduce the risk of malfunction and damage to the sensor (110) while providing a high level of knock detection performance by placing the sensor (110) in an area that is close to a normal knock input point and maintained at a low temperature.

[0259] In addition, the sensor (110) of this embodiment can be electrically connected to the main PCB (61) via a wire (w), similar to the sensor exemplified in the previous embodiment (see FIG. 13). As the sensing module (200) is positioned in an area very close to the control panel (40) as described above, the wiring connection structure between the sensor (110) and the main PCB (61) is simplified, and the wiring length can be effectively shortened.

[0260] [Third Example of a Sensing Module]

[0261] FIG. 14 is a plan view showing the internal structure of a cooking device according to a third embodiment of the present invention, FIG. 15 is an enlarged view showing the control panel and sensing module shown in FIG. 14, and FIG. 16 is an exploded perspective view showing the disassembled state of the control panel and sensing module shown in FIG. 15. In addition, FIG. 17 is a cross-sectional view along the line "17-17" of FIG. 15, and FIG. 18 is a cross-sectional view along the line "18-18" of FIG. 15.

[0262] Referring to FIGS. 14 to 16, a sensing module (300) according to the third embodiment of the present invention may be placed on a control panel (40). That is, in the sensing module (300) of the present embodiment, a sensor (110) may be placed on a control panel (40). As an example, the sensing module (300) may be formed integrally with the control panel (40).

[0263] According to the present embodiment, the control panel (40) may include a circuit board and a panel case (41). As an example, a main PCB (61) may be applied as the circuit board provided in the control panel (40).

[0264] Additionally, a touch pad may be provided on the control panel (40). The touch pad may be placed at the top of the control panel (40), may be provided integrally with the main PCB (61), or may be provided separately from the main PCB (61). The control panel (40) equipped with such a touch pad may be installed inside the cooktop case (10) so that the touch pad can be in close contact with the top plate (20).

[0265] The panel case (41) is provided to accommodate and support a circuit board, namely a main PCB (61) and a touch panel, provided on the control panel (40). The horizontal shape of the panel case (41) may be formed in a shape corresponding to the horizontal shape of the circuit board, for example, a rectangular shape. As an example, the panel case (41) may be formed in a cuboid shape with an open top, and the touch pad of the control panel (40) may come into contact with the top plate (20) through the open top of the panel case (41).

[0266] The control panel (40) may further include a supporter (43) and an elastic member (45). The supporter (43) and the elastic member (45) of the control panel (40) may be provided in a form having a structure and function similar to the supporter (130; see FIG. 6) and the elastic member (140; see FIG. 6) exemplified in one embodiment of the present invention.

[0267] That is, the supporter (43) of the control panel (40) can be installed in the cooktop case (10) to support the panel case (41). For example, the supporter (43) can be coupled to the bottom part (11) of the cooktop case (10), and the panel case (41) can be supported by the supporter (43) between the supporter (43) and the top plate (20).

[0268] And the elastic member (45) can press the panel case (41) toward the top plate (20) so that at least a portion of the touch panel can be in close contact with the top plate (20). For example, the elastic member (45) can elastically press the panel case (41) upward, and accordingly, at least a portion of the touch panel can be in close contact with the top plate (20).

[0269] As described above, the sensing module (300) may be placed on the control panel (40). In the horizontal direction, the sensing module (300) may be placed at a location very close to the control panel (40) or may be placed inside the control panel (40).

[0270] When the sensing module (300) is positioned in a location very close to the control panel (40), the sensing module (300) may be positioned on the upper or side of the control panel (40). As an example, the sensing module (300) may be positioned on the upper side of the control panel (40) and may be positioned in a manner connected to the control panel (40).

[0271] Additionally, the sensing module (300) may be provided integrally with the control panel (40), or provided separately from the control panel (40) and connected to the control panel (40). In this embodiment, the sensing module (300) is provided integrally with the control panel (40).

[0272] For example, the sensor case (310) of the sensing module (300) may be provided separately from the panel case (41) and arranged to be connected to the panel case (41), or may be formed integrally with the panel case (41). In this embodiment, the sensor case (310) is exemplified as being formed integrally with the panel case (41).

[0273] The sensor case (310) provided as described above can be raised and lowered in conjunction with the raising and lowering of the panel case (41). Accordingly, the sensor (110) housed in the sensor case (310) can also be raised and lowered in conjunction with the raising and lowering of the panel case (41).

[0274] According to the present embodiment, the touchpad of the control panel (40) can be elastically supported by the elastic member (45) and adhere to the top plate (20), and the sensor (110) of the sensing module (300) can also be elastically supported by the elastic member (45) and adhere to the top plate (20). That is, the touchpad of the control panel (40) and the sensor (110) of the sensing module (300) share the panel case (41) and the elastic member (45) together as a structure for elastic support.

[0275] Accordingly, the sensing module (300) can be effectively attached to the top plate (20) by sharing the structure for elastic support of the control panel (40) without the need to add a separate structure for attaching the sensor (110) to the top plate (20). This sensing module (300) can provide the effect of reducing the installation cost of the sensing module (300) while maintaining a high level of accuracy in the knock detection operation of the sensor (110).

[0276] In addition, the sensing module (300) of the present embodiment may be provided in a form that is connected to or integrally formed with the control panel (40), thereby being positioned very close to the control panel (40). By being positioned very close to the control panel (40), this sensing module (300) not only enables more effective temperature management of the sensor (110), but also provides the effect of simplifying and efficiently configuring the wiring connection structure between the sensor (110) and the main PCB (61).

[0277] Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the present invention should be determined by the claims below. Explanation of the symbols

[0278] 10: Cooktop case 11: Bottom part 13: Sidewall 20: Top Plate 30: Heating part 31: First heating section 33: Second heating section 35: Third heating section 40: Control Panel 41: Panel case 43: Elastic member 45: Supporter 50: Control unit 61: Main PCB 63,64: Noise filter 65,66: Inverter PCB 67: Cooling fan 100,200,300: Sensing module 110: Sensor 111: 3-axis sensor module 113: Sensor Microcomputer 115: Filter section 117: Amplification section 120,220,320: Sensor case 121: Case body 121a: Transverse section 121b: Longitudinal section 121c: catch projection 121d: Hook projection 123: Contact projection 125: 1st elevator support 126: Second elevator support 127: Sliding hook 127a: Protrusion 127b: Connection 130: Supporter 131: Supporter main body 131a: Transverse support 131b: Vertical support 131c: 131c: 131c 133: First support rod 134: Second support rod 135: Support wall 136: Hook Slot 140: Elastic member 222: Homeboo 250: Adhesive

Claims

Claim 1 A cooking device comprising: a cooktop case having an internal receiving space; a top plate disposed on the upper side of the cooktop case and covering the receiving space; a heating unit having at least a portion disposed in the receiving space and heating an object to be heated placed on the top plate; a sensor that detects vibrations generated from the top plate and generates a signal; and a control unit that controls the operation of the heating unit by reflecting knock input information identified based on the signal generated by the sensor. Claim 2 A cooking device according to claim 1, wherein the heating unit comprises at least one heating coil, and with respect to the horizontal direction, the sensor is disposed between the side wall of the cooktop case and the heating coil or between a plurality of the heating coils. Claim 3 In claim 1, with respect to the horizontal direction, the sensor is a cooking device disposed between the side wall of the cooktop case and the heating unit, or between a plurality of the heating units arranged in the horizontal direction. Claim 4 A cooking device according to claim 1, wherein a pair of heating elements are spaced apart laterally, and with respect to the lateral direction, a sensor is positioned between the pair of heating elements. Claim 5 A cooking device according to claim 1, further comprising an electrical component disposed between a pair of heating parts spaced apart at a predetermined distance in the lateral direction, wherein the sensor is disposed in a space surrounded by the pair of heating parts and the electrical component. Claim 6 In claim 1, the cooking device further comprises a control panel positioned further forward than at least one of a pair of heating units spaced apart laterally, and the sensor is positioned in a space enclosed by the pair of heating units and the control panel. Claim 7 In claim 1, the cooking device further comprises an electrical component disposed between a pair of heating units spaced apart at a predetermined distance in the lateral direction, and a control panel disposed further forward than the electrical component, wherein the sensor is disposed in a space enclosed by the pair of heating units, the electrical component, and the control panel. Claim 8 A cooking appliance according to claim 1, further comprising a control panel in which at least a portion thereof is disposed in the receiving space, and wherein, with respect to the front-rear direction, the sensor is disposed at a position closer to the control panel than to the center of the front-rear direction of the receiving space. Claim 9 A cooking device according to claim 1, further comprising a sensor case supporting the sensor, wherein at least a portion of the sensor case is in close contact with the top plate. Claim 10 In claim 9, the sensor case includes a horizontal surface portion positioned to block the space between the sensor and the top plate, and the sensor is a cooking device connected to the sensor case at the lower side of the horizontal surface portion. Claim 11 A cooking apparatus according to claim 10, further comprising an attachment material that attaches the sensor case to the top plate while adhering at least a portion of the above-mentioned horizontal surface to the top plate. Claim 12 In claim 11, the sensor case further comprises a groove portion arranged to surround the horizontal surface portion from the outer side in the horizontal direction, the groove portion is formed in a shape in which a portion of the upper surface of the horizontal surface portion is recessed downward, and the attachment material comprises a sealant that is filled in the space formed between the groove portion and the top plate and attached to the sensor case and the top plate. Claim 13 In claim 9, the sensor case comprises a case body connected to the sensor and a contact projection protruding from the case body toward the top plate, and a cooking device in which vibration generated from the top plate is transmitted to the case body through the contact projection in contact with the top plate. Claim 14 In claim 13, the case body includes a horizontal surface portion positioned to block the space between the sensor and the top plate, and the contact projection is positioned between the top plate and the horizontal surface portion and contacts the top plate while separating at least a portion of the horizontal surface portion from the top plate. Claim 15 A cooking device according to claim 13, wherein a plurality of contact protrusions, each provided to be in close contact with a top plate, are arranged spaced apart at a predetermined interval along the horizontal direction. Claim 16 A cooking device according to claim 9, further comprising a supporter installed in the cooktop case to support the sensor case, wherein at least a portion of the sensor case is in close contact with the top plate between the supporter and the top plate. Claim 17 A cooking apparatus according to claim 16, further comprising an elastic member that presses the sensor case toward the top plate so that at least a portion of the sensor case can be in close contact with the top plate. Claim 18 In claim 17, the above elastic member comprises a coil spring that is supported by the supporter and elastically supports the sensor case, in a cooking device. Claim 19 In claim 18, the supporter comprises a supporter body installed in the cooktop case and a support rod protruding upward from the supporter body, and the support rod is fitted into the coil spring to allow vertical extension of the coil spring and restrict horizontal movement of the coil spring. Claim 20 In claim 19, the sensor case comprises a case body connected to the sensor, and a lifting support member movably coupled to the support rod to support the case body so as to be vertically movable on the supporter, and the support rod is fitted into the lifting support member to allow the lifting of the lifting support member to be vertically movable and to restrict the horizontal movement of the lifting support member. Claim 21 A cooking appliance according to claim 20, wherein the lower part of the coil spring is supported by the supporter, and the upper part of the coil spring is coupled to the support rod or supports the support rod upward. Claim 22 In claim 16, the supporter comprises a supporter body installed in the cooktop case and a support wall protruding upward from the supporter body, and the sensor case comprises a protrusion coupled to the support wall, wherein the protrusion is inserted into a hook slot formed in the support wall and coupled to the support wall so as to be vertically movable, and the cooking appliance wherein the upward movement of the protrusion is restricted by the protrusion being caught on the inner upper surface of the support wall inside the hook slot. Claim 23 In claim 14, the sensor case is a cooking device coupled to the supporter so as to be movable in a direction toward or away from the top plate. Claim 24 In paragraph 23, the sensor case comprises a plurality of lifting support members that movably connect the sensor case to the supporter, each of the lifting support members is movably connected to the supporter on the outside of the sensor, and the plurality of lifting support members are arranged symmetrically in the front-rear or lateral direction with respect to the sensor, or symmetrically in the front-rear and lateral directions. Claim 25 A cooking device according to claim 24, further comprising an elastic member coupled to at least one of the lifting support members and pressing the sensor case toward the top plate, wherein a plurality of the elastic members are arranged symmetrically in the front-rear or lateral direction with respect to the sensor, or symmetrically in the front-rear and lateral directions. Claim 26 In claim 1, the device further comprises a control panel in which at least a portion thereof is disposed in the receiving space, and the sensor is a cooking device disposed in the control panel. Claim 27 In claim 26, the cooking device further comprises a sensor case supporting the sensor, wherein the control panel comprises a circuit board and a panel case accommodating the circuit board, and the sensor case is arranged to be connected to the panel case or formed integrally with the panel case. Claim 28 A cooktop case having a receiving space formed inside; a top plate disposed on the upper side of the cooktop case and covering the receiving space; a heating unit having at least a portion disposed in the receiving space and heating an object to be heated placed on the top plate; a sensor that detects vibrations generated as a result of a user tapping the top plate and generates a signal; and a cooking device that controls the operation of the heating unit by reflecting information identified by the signal generated by the sensor.

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