Electronic device including dielectric heating device

Abstract

An electronic device according to various embodiments of the present disclosure comprises a processor; a power supply; and a dielectric heating device, wherein the dielectric heating device comprises a first electrode connected to the power supply; and a second electrode connected to the power supply and spaced apart in a direction away from one surface of the first electrode, wherein the second electrode comprises a plurality of second unit electrodes spaced apart in the length direction and the width direction, respectively, and the dielectric heating device heats a body to be heated disposed between the first electrode and the second electrode, and the processor can determine an electrode distance, which is a straight distance between the first electrode and the second unit electrode, based on an estimated value of the moisture content of a portion of the body to be heated disposed at each of the second unit electrodes.

Description

Technology Field

[0001] Various embodiments of the present disclosure relate to electronic devices including dielectric heating devices. Background Technology

[0002] A dielectric heating device is a device that heats an object by placing it between two opposing electrodes and applying a high-frequency voltage. The object placed in the dielectric heating device may be a dielectric. A dielectric can be composed of polar molecules, one end of which carries a positive charge and the other end of which carries a negative charge. When a dielectric is placed between the two electrodes of a dielectric heating device and an electric field is applied, the positively charged parts of the dielectric's polar molecules may align toward the negative electrode, and the negatively charged parts may align toward the positive electrode. If the direction of the electric field changes, the aligned polar molecules may rotate according to the direction of the electric field and realign themselves. Friction occurs during this realignment process, which can generate heat. By applying a high-frequency voltage to rapidly and continuously change the direction of the electric field, the dielectric heating device can increase the frictional heat generated during the molecular realignment process, thereby heating the entire surface of the object.

[0003] Heating devices utilizing dielectric heating are widely used in household, medical, and industrial applications. For example, microwave ovens used to heat food in homes operate using dielectric heating. Heating devices based on dielectric heating are applied not only in the medical field, such as in hyperthermia cancer treatment devices and deep tissue dilation devices, but also in industrial fields, such as wood drying. The problem to be solved

[0004] When heating a workpiece using a dielectric heating device according to conventional technology, heating may occur unevenly depending on the internal material composition of the workpiece. For example, the temperature change in each region of the workpiece may vary depending on the amount of moisture contained in each region. Regions of the workpiece with relatively high moisture content require more heat energy for heating, so the temperature change caused by heating may be smaller compared to regions with relatively low moisture content. Therefore, a dielectric heating device capable of heating the workpiece uniformly is required even if the moisture content in each region of the workpiece is uneven.

[0005] An electronic device including a dielectric heating device according to various embodiments of the present disclosure can provide a configuration capable of uniformly heating each region of a body to be heated. means of solving the problem

[0006] An electronic device according to various embodiments of the present disclosure comprises a processor; a power supply; and a dielectric heating device, wherein the dielectric heating device comprises a first electrode connected to the power supply; and a second electrode connected to the power supply and spaced apart in a direction away from one surface of the first electrode, wherein the second electrode comprises a plurality of second unit electrodes spaced apart in the length direction and the width direction, respectively, and the dielectric heating device heats a body to be heated disposed between the first electrode and the second electrode, and the processor can determine an electrode distance, which is a straight distance between the first electrode and the second unit electrode, based on an estimated value of the moisture content of a portion of the body to be heated disposed at each of the second unit electrodes.

[0007] An electronic device according to various embodiments of the present disclosure comprises a power source; and a dielectric heating device, wherein the dielectric heating device comprises a first electrode connected to the power source; and a second electrode connected to the power source and spaced apart from one surface of the first electrode, wherein at least a portion of the first electrode may be bent toward the second electrode.

[0008] A method of operation of an electronic device including a dielectric heating device according to various embodiments of the present disclosure may include: operating a plurality of unit electrodes to heat a body to be heated; estimating the moisture content of a portion of the body to be heated disposed at each of the plurality of unit electrodes; comparing the estimated moisture content of the portion of the body to be heated with a reference value; reducing the distance formed by the unit electrode to which the portion of the body to be heated disposed, where the estimated moisture content exceeds the reference value in at least one portion of the body to be heated, with the counterpart electrode when the estimated moisture content exceeds the reference value; and adjusting the distance formed by each of the plurality of unit electrodes with the counterpart electrode to be equal when the estimated moisture content is less than or equal to the reference value in all portions of the body to be heated. Effects of the invention

[0009] An electronic device including a dielectric heating device according to various embodiments of the present disclosure may include an electrode that is bent and extended in at least a portion, so that a body to be heated may be heated evenly.

[0010] An electronic device including a dielectric heating device according to various embodiments of the present disclosure may include a plurality of unit electrodes capable of rotation or distance adjustment, so as to concentrate heating on a part of a body to be heated.

[0011] An electronic device including a dielectric heating device according to various embodiments of the present disclosure can heat the body evenly by estimating the amount of moisture in each region of the body to be heated and heating the region with a high amount of moisture relatively strongly. Brief explanation of the drawing

[0012] FIG. 1 is a block diagram of an electronic device in a network environment according to various embodiments. FIGS. 2a and 2b are drawings showing a dielectric heating device including a first electrode having a bendable shape according to one embodiment of the present disclosure. FIGS. 3a and 3b are drawings illustrating a dielectric heating device including a rotating second unit electrode according to one embodiment of the present disclosure. FIGS. 4a and 4b are drawings illustrating a dielectric heating device comprising a plurality of second unit electrodes whose distance from a first electrode is adjustable, according to one embodiment of the present disclosure. FIG. 5 is a drawing showing a dielectric heating device comprising a plurality of first unit electrodes whose distance from a second electrode is adjusted according to one embodiment of the present disclosure. FIG. 6 is a drawing showing a dielectric heating device including a first plate and a second plate according to one embodiment of the present disclosure. FIG. 7 is a drawing showing a first plate according to one embodiment of the present disclosure. FIG. 8 is a drawing showing a second electrode and a second plate according to an embodiment of the present disclosure. FIG. 9 is a drawing showing an electrode moving device according to an embodiment of the present disclosure. FIG. 10 is a flowchart illustrating a method of operation of an electronic device including a dielectric heating device according to various embodiments of the present disclosure. FIG. 11 is a graph showing the reference impedance phase and the measured impedance phase according to various embodiments of the present disclosure. FIG. 12 is a graph showing the reference impedance ratio and the measured impedance ratio according to various embodiments of the present disclosure. Specific details for implementing the invention

[0013] FIG. 1 is a block diagram of an electronic device (101) in a network environment (100) according to various embodiments. Referring to FIG. 1, in the network environment (100), the electronic device (101) may communicate with an electronic device (102) through a first network (198) (e.g., a short-range wireless communication network) or may communicate with at least one of an electronic device (104) or a server (108) through a second network (199) (e.g., a long-range wireless communication network). According to one embodiment, the electronic device (101) may communicate with the electronic device (104) through a server (108). According to one embodiment, the electronic device (101) may include a processor (120), memory (130), input module (150), sound output module (155), display module (160), audio module (170), sensor module (176), interface (177), connection terminal (178), haptic module (179), camera module (180), power management module (188), battery (189), communication module (190), subscriber identification module (196), or antenna module (197). In some embodiments, at least one of these components (e.g., connection terminal (178)) may be omitted from the electronic device (101), or one or more other components may be added. In some embodiments, some of these components (e.g., sensor module (176), camera module (180), or antenna module (197)) may be integrated into a single component (e.g., display module (160)).

[0014] The processor (120) can control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) by executing software (e.g., a program (140)), and can perform various data processing or operations. According to one embodiment, as at least part of the data processing or operations, the processor (120) can store commands or data received from other components (e.g., a sensor module (176) or a communication module (190)) in volatile memory (132), process the commands or data stored in volatile memory (132), and store the resulting data in non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or processor) or an auxiliary processor (123) that can operate independently or together with it (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor). For example, if the electronic device (101) includes a main processor (121) and an auxiliary processor (123), the auxiliary processor (123) may be configured to use lower power than the main processor (121) or to be specialized for a designated function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as part thereof.

[0015] The auxiliary processor (123) may control at least some of the functions or states associated with at least one component of the electronic device (101) (e.g., display module (160), sensor module (176), or communication module (190)) on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. According to one embodiment, the auxiliary processor (123) (e.g., image signal processor or communication processor) may be implemented as part of another functionally related component (e.g., camera module (180) or communication module (190)). According to one embodiment, the auxiliary processor (123) (e.g., neural network processing unit) may include a hardware structure specialized for processing an artificial intelligence model. The artificial intelligence model may be generated through machine learning. Such learning may be performed, for example, on the electronic device (101) itself where the artificial intelligence model is executed, or through a separate server (e.g., server (108)). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model may include a plurality of artificial neural network layers.An artificial neural network may be a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to the hardware structure, the artificial intelligence model may include a software structure, either additionally or substantially.

[0016] The memory (130) can store various data used by at least one component of the electronic device (101) (e.g., processor (120) or sensor module (176)). The data may include, for example, input data or output data for software (e.g., program (140)) and related commands. The memory (130) may include volatile memory (132) or non-volatile memory (134).

[0017] The program (140) may be stored as software in memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0018] The input module (150) can receive commands or data to be used for a component of the electronic device (101) (e.g., processor (120)) from outside the electronic device (101) (e.g., user). The input module (150) may include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0019] The sound output module (155) can output a sound signal to the outside of the electronic device (101). The sound output module (155) may include, for example, a speaker or a receiver. The speaker may be used for general purposes, such as multimedia playback or recording playback. The receiver may be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part thereof.

[0020] The display module (160) can visually provide information to an external (e.g., user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling said device. According to one embodiment, the display module (160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of the force generated by said touch.

[0021] The audio module (170) can convert sound into an electrical signal or, conversely, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150) or output sound through the sound output module (155) or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphones) connected directly or wirelessly to the electronic device (101).

[0022] The sensor module (176) can detect the operating state of the electronic device (101) (e.g., power or temperature) or the external environmental state (e.g., user state) and generate an electrical signal or data value corresponding to the detected state. According to one embodiment, the sensor module (176) may include, for example, a gesture sensor, a gyroscope sensor, a barometric pressure sensor, a magnetic sensor, an accelerometer sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biosensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0023] The interface (177) may support one or more specified protocols that can be used for the electronic device (101) to be connected directly or wirelessly to an external electronic device (e.g., electronic device (102)). According to one embodiment, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0024] The connection terminal (178) may include a connector through which the electronic device (101) can be physically connected to an external electronic device (e.g., electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0025] The haptic module (179) can convert an electrical signal into a mechanical stimulus (e.g., vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic senses. According to one embodiment, the haptic module (179) may include, for example, a motor, a piezoelectric element, or an electric stimulation device.

[0026] The camera module (180) can capture still images and video. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0027] The power management module (188) can manage the power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented, for example, as at least part of a power management integrated circuit (PMIC).

[0028] The battery (189) can supply power to at least one component of the electronic device (101). According to one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0029] The communication module (190) can support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between an electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may include one or more communication processors that operate independently of the processor (120) (e.g., application processor) and support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (190) may include a wireless communication module (192) (e.g., cellular communication module, short-range wireless communication module, or GNSS (global navigation satellite system) communication module) or a wired communication module (194) (e.g., LAN (local area network) communication module, or power line communication module). The corresponding communication module among these communication modules can communicate with an external electronic device (104) through a first network (198) (e.g., a short-range communication network such as Bluetooth, WiFi (wireless fidelity) direct, or IrDA (infrared data association)) or a second network (199) (e.g., a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules may be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can identify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) using subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module (196).

[0030] The wireless communication module (192) can support 5G networks and next-generation communication technologies following 4G networks, for example, new radio access technology. NR access technology can support high-speed transmission of high-capacity data (enhanced mobile broadband (eMBB)), minimization of terminal power and connection of multiple terminals (massive machine type communications (mMTC)), or high reliability and low latency (ultra-reliable and low-latency communications (URLLC)). The wireless communication module (192) can support a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate, for example. The wireless communication module (192) can support various technologies for securing performance in the high-frequency band, such as beamforming, massive MIMO (multiple-input and multiple-output), full-dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large-scale antenna. The wireless communication module (192) can support various requirements specified in the electronic device (101), external electronic device (e.g., electronic device (104)), or network system (e.g., second network (199)). According to one embodiment, the wireless communication module (192) can support a Peak data rate (e.g., 20 Gbps or more) for realizing eMBB, loss coverage (e.g., 164 dB or less) for realizing mMTC, or U-plane latency (e.g., downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) for realizing URLLC.

[0031] An antenna module (197) can transmit a signal or power to or from an external source (e.g., an external electronic device). According to one embodiment, the antenna module (197) may include an antenna comprising a radiator made of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). According to one embodiment, the antenna module (197) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as a first network (198) or a second network (199), may be selected from the plurality of antennas, for example, by a communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device through the selected at least one antenna. According to some embodiments, in addition to the radiator, other components (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as part of the antenna module (197).

[0032] According to various embodiments, the antenna module (197) may form a mmWave antenna module. According to one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent to a first surface (e.g., bottom surface) of the printed circuit board and capable of supporting a specified high frequency band (e.g., mmWave band), and a plurality of antennas (e.g., array antennas) disposed on or adjacent to a second surface (e.g., top surface or side surface) of the printed circuit board and capable of transmitting or receiving a signal of the specified high frequency band.

[0033] At least some of the above components can be connected to each other via a communication method between peripheral devices (e.g., bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)) and exchange signals (e.g., commands or data) with each other.

[0034] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) through a server (108) connected to a second network (199). Each of the external electronic devices (102, or 104) may be the same or different type of device as the electronic device (101). According to one embodiment, all or part of the operations performed on the electronic device (101) may be performed on one or more of the external electronic devices (102, 104, or 108). For example, if the electronic device (101) needs to perform a function or service automatically or in response to a request from a user or another device, the electronic device (101) may request one or more external electronic devices to perform at least part of the function or service instead of performing the function or service itself or additionally. One or more external electronic devices that receive the above request may execute at least part of the requested function or service, or additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may provide the result as is or additionally processed as at least part of the response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device (101) may provide ultra-low latency services using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server using machine learning and / or neural networks. According to one embodiment, the external electronic device (104) or the server (108) may be included within a second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0035] FIG. 2a is a drawing showing a dielectric heating device (200) including a first electrode (210) that is bent toward a second electrode (220) according to one embodiment of the present disclosure.

[0036] FIG. 2b is a drawing showing an electrode dielectric heating device (200) including a first electrode (210) that is bent in the opposite direction to the direction toward the second electrode (220) according to one embodiment of the present disclosure.

[0037] In various embodiments, the electronic device (101) may include a processor (120), a power supply (not shown), and / or a dielectric heating device (200). The dielectric heating device (200) may heat a body to be heated (D) placed in the dielectric heating device (200) using a dielectric heating method.

[0038] In various embodiments, a power source (not shown) may supply alternating current power to a dielectric heating device (200). The power source (not shown) may be connected to the first electrode (210) and the second electrode (220) of the dielectric heating device (200) to supply alternating current power.

[0039] In various embodiments, the power source (not shown) may include a battery (189, see FIG. 1) and / or a converter (not shown) (e.g., an inverter). The converter (not shown) (e.g., an inverter) may convert the DC voltage generated from the battery (189, see FIG. 1) into AC.

[0040] In various embodiments, the processor (120) can control the dielectric heating device (200).

[0041] In various embodiments, the dielectric heating method may heat the body to be heated (D) by placing the dielectric, which is the body to be heated (D), between two opposing electrodes and applying a high-frequency voltage. The body to be heated (D), which is the subject of dielectric heating, may contain polar molecules. The direction of the polar molecules may be influenced by an electric field. When the body to be heated (D) is exposed to an electric field that changes over time, the polar molecules constituting the body to be heated (D) may vibrate while changing their direction according to the change in the electric field.

[0042] In various embodiments, when the frequency of the voltage applied to the dielectric heating device (200) increases, a phase lag may occur because the polar molecules are not positioned in a direction that perfectly matches the vibrating electric field. Due to the phase lag, energy from the electric field may be absorbed by the body to be heated (D) and dissipated as heat. The dielectric heating device (200) may be a device that heats the body to be heated (D) using the heat generated through this process.

[0043] In various embodiments, power generated through the dielectric heating device (200) The magnitude of ) can be determined by the operating frequency of the dielectric heating device (200), the characteristics of the body to be heated (D), and the strength of the electric field. For example, power generated through the dielectric heating device (200) ( ) can be calculated using [Equation 1]. Frequency( ) may mean the operating frequency of the dielectric heating device (200). can refer to the permittivity in a vacuum. can mean the relative dielectric loss coefficient determined according to the characteristics of the heated body (D). may refer to the strength of the electric field generated by the alternating current power supplied to the dielectric heating device (200).

[0044] [Mathematical Formula 1]

[0045]

[0046] When a conventional heating method is used to heat the object to be heated (D), the heat source may be located outside the object to be heated (D). A conventional heating method may be a heating method in which thermal energy generated from an external heat source is transferred from a high-temperature region of the object to be heated (D) to a low-temperature region. In a conventional heating method, the object to be heated (D) may be heated unevenly according to the heat conduction gradient, and the heating speed may be relatively slow.

[0047] Unlike conventional heating methods, dielectric heating forms an electric field that directly affects the molecules constituting the body to be heated (D), so the body to be heated (D) can be heated relatively uniformly. The heating efficiency of dielectric heating may vary depending on the electrical characteristics of the body to be heated (D).

[0048] A dielectric heating device (200) may be a device that heats a body to be heated (D) by placing it between two opposing electrodes and applying a high-frequency voltage. The body to be heated (D) placed in the dielectric heating device (200) may be a dielectric. The dielectric may be composed of polar molecules (dipoles) having a positive charge at one end and a negative charge at the other end. The arrangement of the polar molecules constituting the dielectric may change depending on the direction of the electric field formed in the dielectric heating device (200). For example, if the first electrode (210) of the dielectric heating device (200) has a positive charge, the negative charge of the polar molecules may be arranged in a direction toward the first electrode (210). If the second electrode (220) of the dielectric heating device (200) has a negative charge, the positive charge of the polar molecules may be arranged in a direction toward the second electrode (220).

[0049] In describing a dielectric heating device (200) according to one embodiment of the present disclosure, the length direction of the dielectric heating device (200) may refer to the positive x-axis direction. The height direction of the dielectric heating device (200) may refer to the positive z-axis direction. The width direction of the dielectric heating device (200) may refer to a direction perpendicular to the x-axis direction and the z-axis direction.

[0050] A dielectric heating device (200) according to one embodiment of the present disclosure may include a first electrode (210) and / or a second electrode (220).

[0051] In various embodiments, the first electrode (210) and the second electrode (220) may extend in the longitudinal direction (e.g., positive x-axis direction) of the dielectric heating device (200). The first electrode (210) and the second electrode (220) may extend in the width direction (e.g., direction perpendicular to the x-axis and z-axis) of the dielectric heating device (200).

[0052] In various embodiments, the second electrode (220) may be spaced apart in a direction away from one side of the first electrode (210). For example, the first electrode (210) may be spaced apart from the second electrode (220) in the height direction (e.g., positive z-axis direction) of the dielectric heating device (200).

[0053] In various embodiments, a body to be heated (D) may be placed between the first electrode (210) and the second electrode (220). For example, the body to be heated (D) may be placed on one side of the second electrode (220) (e.g., the side facing the first electrode (210) from the second electrode (220).

[0054] In various embodiments, the body to be heated (D) may be a dielectric. A dielectric may refer to an insulator that has polarity in an electric field (E).

[0055] Referring to FIG. 2a, the electric field (E) consists of a plurality of electric field lines (E L It can be represented as ). Multiple electric field lines (EL ) can be formed in a direction from positive charge toward negative charge. For example, when the first electrode (210) has a positive charge and the second electrode (220) has a negative charge, a plurality of electric field lines (E L ) can be formed in a direction from the first electrode (210) toward the second electrode (220).

[0056] In various embodiments, the center point of the first electrode (210) may refer to a point located at the center of the first electrode (210) with respect to the longitudinal direction (e.g., positive x-axis direction) of the dielectric heating device (200). The end and the other end of the first electrode (210) may refer to the ends of the first electrode (210) with respect to the longitudinal direction (e.g., positive x-axis direction) of the dielectric heating device (200).

[0057] According to one embodiment of the present disclosure, the first electrode (210) of the dielectric heating device (200) may be bent in a direction such that at least a portion of it faces the second electrode (220). For example, referring to FIG. 2a, the first electrode (210) may be bent such that the center point of the first electrode (210) is closer to the second electrode (220) than to one end and the other end of the first electrode (210).

[0058] When at least a portion of the first electrode (210) is bent and extended in a direction toward the second electrode (220), compared to the case where the first electrode (210) is extended without bending, the electric field lines (E) across the entire body to be heated (D) L ) can be evenly distributed. For example, if the first electrode (210) is not bent and is extended, the electric field lines (E L ) may be concentrated at one end and the other end of the body to be heated (D), but if at least a portion of the first electrode (210) is bent toward the second electrode (220), electric field lines (E) at one end and the other end of the body to be heated (D) L Concentration of ) can be prevented.

[0059] Referring to FIG. 2a, the first electrode (210) is bent and extended to form an electric field line (E) located at one end of the body to be heated (D) (e.g., the end facing the positive x-axis direction). L At least a portion of ) may be formed in a shape bent in the longitudinal direction (e.g., positive x-axis direction) of the dielectric heating device (200). Electric field lines (E) located at the other end (e.g., end facing the negative x-axis direction) of the body to be heated (D). L At least a portion of ) may be formed in a shape bent in the opposite direction to the longitudinal direction of the dielectric heating device (200) (e.g., negative x-axis direction). Electric field line (E L At least a portion of ) is formed in a bent shape, and electric field lines (E) at one end and the other end of the body to be heated (D) L Concentration of ) can be prevented.

[0060] According to one embodiment of the present disclosure, the first electrode (210) of the dielectric heating device (200) may be bent in a direction opposite to the direction toward the second electrode (220) (e.g., the positive z-axis direction). For example, referring to FIG. 2b, the first electrode (210) may be bent such that the center point of the first electrode (210) is further from the second electrode (220) than the one end and the other end of the first electrode (210).

[0061] In one embodiment, if at least a portion of the first electrode (210) is bent in a direction opposite to the direction toward the second electrode (220), the outflow of the electric field (E) may be reduced. For example, referring to FIG. 2b, an electric field line (E) formed at one end of the body to be heated (D) (e.g., the end facing the positive x-axis direction from the body to be heated (D)). L ) can be formed by bending in the direction opposite to the longitudinal direction of the dielectric heating device (200) (e.g., negative x-axis direction). Electric field lines (E) formed at the other end of the body to be heated (D) (e.g., the end facing the negative x-axis direction from the body to be heated (D)). L) can be formed by bending along the longitudinal direction (e.g., positive x-axis direction) of the dielectric heating device (200). Electric field lines (E) formed at one end and the other end of the body to be heated (D). L Since ) is bent in a direction toward the body to be heated (D), the electric field lines (E) moving away from the body to be heated (D) L ) is reduced, and the outflow of the electric field (E) can be reduced.

[0062] FIG. 3a is a drawing showing a dielectric heating device (300) including a second unit electrode (321) that can be rotated about an axis of a rotation center (322) according to one embodiment of the present disclosure.

[0063] FIG. 3b is a drawing showing a dielectric heating device (300) including a second unit electrode (321) that rotates about an axis of a rotation center (322) according to one embodiment of the present disclosure.

[0064] In various embodiments, the electronic device (101) may include a processor (120), a power supply (not shown) and / or a dielectric heating device (300). The dielectric heating device (300) may heat a body to be heated (D, see FIG. 2a) placed in the dielectric heating device (300) using a dielectric heating method.

[0065] In various embodiments, a power source (not shown) may supply alternating current power to a dielectric heating device (300). The power source (not shown) may be connected to the first electrode (310) and the second electrode (320) of the dielectric heating device (300) to supply alternating current power.

[0066] In various embodiments, the power source (not shown) may include a battery (189, see FIG. 1) and / or a converter (not shown) (e.g., an inverter). The converter (not shown) (e.g., an inverter) may convert the DC voltage generated from the battery (189, see FIG. 1) into AC.

[0067] In various embodiments, the processor (120) can control the dielectric heating device (300).

[0068] In describing a dielectric heating device (300) according to one embodiment of the present disclosure, the length direction of the dielectric heating device (300) may refer to the positive x-axis direction. The height direction of the dielectric heating device (300) may refer to the positive z-axis direction. The width direction of the dielectric heating device (300) may refer to a direction perpendicular to the x-axis direction and the z-axis direction.

[0069] A dielectric heating device (300) according to one embodiment of the present disclosure may include a first electrode (310) and / or a second electrode (320).

[0070] In one embodiment, the second electrode (320) may include a plurality of second unit electrodes (321). Referring to FIG. 3a and FIG. 3b, the second electrode (320) includes six second unit electrodes (321), but the number of second unit electrodes (321) may not be limited thereto.

[0071] In one embodiment, a plurality of second unit electrodes (321) may be spaced apart in the longitudinal direction (e.g., positive x-axis direction) of the dielectric heating device (300). A plurality of second unit electrodes (321) may be spaced apart in the width direction of the dielectric heating device (300).

[0072] In one embodiment, a plurality of second unit electrodes (321) may include a center of rotation (322). The center of rotation (322) may refer to a point located at the center of the second unit electrode (321) in the longitudinal direction of the second unit electrode (321) (e.g., positive x-axis direction).

[0073] In one embodiment, each of the plurality of second unit electrodes (321) can be rotated clockwise (e.g., in a direction of rotation from the positive x-axis toward the positive z-axis) or counterclockwise around the rotation center (322) as an axis.

[0074] In various embodiments, the strength of the electric field (E) formed in the dielectric heating device (300) may vary depending on the distance between the first electrode (310) and the second electrode (320). For example, if the distance between the first electrode (310) and the second electrode (320) is reduced, the strength of the electric field (E) may be increased.

[0075] In one embodiment, at least a portion of the second unit electrode (321) is rotated, and the distribution of the electric field (E) between the first electrode (310) and the second electrode (320) may change. Referring to FIG. 3b, some of the plurality of second unit electrodes (321) may be rotated clockwise or counterclockwise, and the distance from the first electrode (310) may become relatively closer. For example, the distance from the first electrode (310) of the rotated second unit electrode (321) may be formed relatively closer than that of the unrotated second unit electrode (321). The strength of the electric field (E) may be formed relatively strongly at the second unit electrode (321) that is closer to the first electrode (310).

[0076] An electronic device (101) according to one embodiment of the present disclosure can rotate a second unit electrode (321) located near an area where heating needs to be concentrated in a body to be heated (D, see FIG. 2a) in a clockwise or counterclockwise direction under the control of a processor (120). The electronic device (101) can rotate the second unit electrode (321), which is positioned near an area where heating needs to be concentrated in a body to be heated (D, see FIG. 2a), in a clockwise or counterclockwise direction under the control of a processor (120), thereby making the distance from the first electrode (310) relatively closer.

[0077] FIG. 4a is a drawing showing a dielectric heating device (400) including a plurality of second unit electrodes (421) according to one embodiment of the present disclosure.

[0078] FIG. 4b is a drawing showing a dielectric heating device (400) comprising a plurality of two unit electrodes (421) whose distance from a first electrode (410) is adjustable according to one embodiment of the present disclosure.

[0079] In various embodiments, the electronic device (101) may include a processor (120), a power supply (not shown) and / or a dielectric heating device (400). The dielectric heating device (400) may heat a workpiece (D, see FIG. 2a) placed in the dielectric heating device (400) using a dielectric heating method.

[0080] In various embodiments, a power source (not shown) may supply alternating current power to a dielectric heating device (400). The power source (not shown) may be connected to the first electrode (410) and the second electrode (420) of the dielectric heating device (400) to supply alternating current power.

[0081] In various embodiments, the power source (not shown) may include a battery (189, see FIG. 1) and / or a converter (not shown) (e.g., an inverter). The converter (not shown) (e.g., an inverter) may convert the DC voltage generated from the battery (189, see FIG. 1) into AC.

[0082] In various embodiments, the processor (120) can control the dielectric heating device (400).

[0083] In describing a dielectric heating device (400) according to one embodiment of the present disclosure, the length direction of the dielectric heating device (400) may refer to the positive x-axis direction. The height direction of the dielectric heating device (400) may refer to the positive z-axis direction. The width direction of the dielectric heating device (400) may refer to a direction perpendicular to the x-axis direction and the z-axis direction.

[0084] A dielectric heating device (400) according to one embodiment of the present disclosure may include a first electrode (410) and / or a second electrode (420).

[0085] In one embodiment, the first electrode (410) may include a plurality of first unit electrodes (411). Referring to FIGS. 4a and 4b, the first electrode (410) includes four first unit electrodes (411), but the number of first unit electrodes (411) may not be limited thereto.

[0086] In one embodiment, a plurality of first unit electrodes (411) may be spaced apart in the longitudinal direction (e.g., positive x-axis direction) of the dielectric heating device (400). A plurality of first unit electrodes (411) may be spaced apart in the width direction of the dielectric heating device (400).

[0087] In one embodiment, the second electrode (420) may include a plurality of second unit electrodes (421). Referring to FIG. 4a and FIG. 4b, the second electrode (420) includes six second unit electrodes (421), but the number of second unit electrodes (421) may not be limited thereto.

[0088] In one embodiment, a plurality of second unit electrodes (421) may be spaced apart in the longitudinal direction (e.g., positive x-axis direction) of the dielectric heating device (400). A plurality of second unit electrodes (421) may be spaced apart in the width direction of the dielectric heating device (400).

[0089] In one embodiment, each of the plurality of second unit electrodes (421) may be moved in a direction toward the first electrode (410) (e.g., positive z-axis direction) or in a direction opposite to the direction toward the first electrode (410) (e.g., negative z-axis direction). The distance between the second unit electrode (421) and the first electrode (410) may be reduced by moving the second unit electrode (421) in a direction toward the first electrode (410).

[0090] In one embodiment, at least a portion of the second unit electrode (421) is moved in a direction toward the first electrode (410) of the dielectric heating device (400) (e.g., in the positive z-axis direction), and the electric field (E) distribution between the first electrode (410) and the second electrode (420) may be changed. Referring to FIG. 4b, some of the plurality of second unit electrodes (421) are moved in a direction toward the first electrode (410), and the distance from the first electrode (410) may be relatively closer compared to the remaining second unit electrodes (421). The second unit electrode (421) moved in a direction toward the first electrode (410) may be formed to be relatively closer from the first electrode (410) compared to the remaining second unit electrodes (421) that are not moved. Since the strength of the electric field (E) may be inversely proportional to the distance between the first electrode (410) and the second electrode (420), the strength of the electric field (E) formed between the second unit electrode (421), which is closer to the first electrode (410), and the first electrode (410) may be relatively stronger compared to the strength of the electric field (E) formed on the remaining second unit electrode (421).

[0091] An electronic device (101) according to one embodiment of the present disclosure can move a second unit electrode (421) located near an area where heating needs to be concentrated in a body to be heated (D, see FIG. 2a) in a direction toward the first electrode (410) (e.g., in the positive z-axis direction) under the control of a processor (120).

[0092] FIG. 5 is a drawing showing a dielectric heating device (500) comprising a plurality of first unit electrodes (511) whose distance from a second electrode (520) is adjusted according to one embodiment of the present disclosure.

[0093] In various embodiments, the electronic device (101) may include a processor (120), a power supply (not shown) and / or a dielectric heating device (500). The dielectric heating device (500) may heat a workpiece (D, see FIG. 2a) placed in the dielectric heating device (500) using a dielectric heating method.

[0094] In various embodiments, a power source (not shown) may supply alternating current power to a dielectric heating device (500). The power source (not shown) may be connected to the first electrode (510) and the second electrode (520) of the dielectric heating device (500) to supply alternating current power.

[0095] In various embodiments, the power source (not shown) may include a battery (189, see FIG. 1) and / or a converter (not shown) (e.g., an inverter). The converter (not shown) (e.g., an inverter) may convert the DC voltage generated from the battery (189, see FIG. 1) into AC.

[0096] In various embodiments, the processor (120) can control the dielectric heating device (500).

[0097] In describing a dielectric heating device (500) according to one embodiment of the present disclosure, the length direction of the dielectric heating device (500) may refer to the positive x-axis direction. The height direction of the dielectric heating device (500) may refer to the positive z-axis direction. The width direction of the dielectric heating device (500) may refer to a direction perpendicular to the x-axis direction and the z-axis direction.

[0098] In one embodiment, the first electrode (510) may include a plurality of first unit electrodes (511). Referring to FIG. 5, the first electrode (510) includes six first unit electrodes (511), but the number of first unit electrodes (511) may not be limited thereto.

[0099] In one embodiment, the second electrode (520) may include a plurality of second unit electrodes (521).

[0100] In one embodiment, a plurality of first unit electrodes (511) may be spaced apart in the longitudinal direction (e.g., positive x-axis direction) of the dielectric heating device (500). A plurality of first unit electrodes (511) may be spaced apart in the width direction of the dielectric heating device (500).

[0101] In one embodiment, each of the plurality of first unit electrodes (511) may be moved in a direction toward the second electrode (520) of the dielectric heating device (500) (e.g., negative z-axis direction) or in a direction opposite to the direction toward the second electrode (520) (e.g., positive z-axis direction).

[0102] In one embodiment, the first unit electrode (511) may be moved in a direction toward the second electrode (520) (e.g., in the negative z-axis direction) so that the distance between the first unit electrode (511) and the second electrode (520) may be reduced.

[0103] In one embodiment, the first unit electrode (511) is moved in a direction toward the second electrode (520), and the distribution of the electric field (E) between the first electrode (510) and the second electrode (520) may change. Referring to FIG. 5, some of the plurality of first unit electrodes (511) are moved in a direction toward the second electrode (520), and the distance from the second electrode (520) may become relatively closer compared to the remaining first unit electrodes (511). The strength of the electric field (E) formed at the first unit electrode (511) that is relatively close to the second electrode (520) may be relatively stronger compared to the strength of the electric field (E) formed at the remaining first unit electrodes (511).

[0104] An electronic device (101) according to one embodiment of the present disclosure can move a first unit electrode (511) located near an area where heating needs to be concentrated in a body to be heated (D, see FIG. 2a) in a direction toward a second electrode (520) (e.g., in the negative z-axis direction) under the control of a processor (120).

[0105] FIG. 6 is a drawing showing a dielectric heating device (600) including a first plate (630) and a second plate (640) according to one embodiment of the present disclosure.

[0106] In various embodiments, the electronic device (101) may include a processor (120), a power supply (not shown) and / or a dielectric heating device (600). The dielectric heating device (600) may heat a workpiece (D, see FIG. 2a) placed in the dielectric heating device (600) using a dielectric heating method.

[0107] In various embodiments, a power source (not shown) may supply alternating current power to a dielectric heating device (600). The power source (not shown) may be connected to the first electrode (610) and the second electrode (620) of the dielectric heating device (600) to supply alternating current power.

[0108] In various embodiments, the power source (not shown) may include a battery (189, see FIG. 1) and / or a converter (not shown) (e.g., an inverter). The converter (not shown) (e.g., an inverter) may convert the DC voltage generated from the battery (189, see FIG. 1) into AC.

[0109] In various embodiments, the processor (120) can control the dielectric heating device (600).

[0110] In describing a dielectric heating device (600) according to one embodiment of the present disclosure, the length direction of the dielectric heating device (600) may refer to the positive x-axis direction. The height direction of the dielectric heating device (600) may refer to the positive z-axis direction. The width direction of the dielectric heating device (600) may refer to a direction perpendicular to the x-axis direction and the z-axis direction.

[0111] A dielectric heating device (600) according to one embodiment of the present disclosure may include a first electrode (610), a second electrode (620), a first plate (630) and / or a second plate (640).

[0112] In one embodiment, the first electrode (610) may include a plurality of first unit electrodes (611). A plurality of first unit electrodes (611) may be spaced apart in the longitudinal direction (e.g., positive x-axis direction) of the dielectric heating device (600). A plurality of first unit electrodes (611) may be spaced apart in the width direction of the dielectric heating device (600).

[0113] In one embodiment, the second electrode (620) may include a plurality of second unit electrodes (621). A plurality of second unit electrodes (621) may be spaced apart in the longitudinal direction (e.g., positive x-axis direction) of the dielectric heating device (600). A plurality of second unit electrodes (621) may be spaced apart in the width direction of the dielectric heating device (600).

[0114] In one embodiment, the first plate (630) may be positioned in the height direction (e.g., positive z-axis direction) of the dielectric heating device (600) with respect to the first electrode (610). For example, a plurality of first unit electrodes (611) may be positioned on one side of the first plate (630) (e.g., the side facing the negative z-axis direction).

[0115] In one embodiment, the second plate (640) may be positioned in a direction opposite to the height direction of the dielectric heating device (600) with respect to the second electrode (620) (e.g., negative z-axis direction). For example, a plurality of second unit electrodes (621) may be positioned on one side of the second plate (640) (e.g., a side facing the positive z-axis direction).

[0116] In one embodiment, the first plate (630) and the second plate (640) may each serve to support the first unit electrode (610) and the second unit electrode (620) so that they maintain their positions. For example, the second unit electrode (620) may be placed on one side of the second plate (640) and supported by the second plate (640) to maintain its position.

[0117] In one embodiment, each of the plurality of second unit electrodes (621) can be moved in a direction toward the first electrode (610) of the dielectric heating device (600) (e.g., positive z-axis direction) and in a direction opposite to the direction toward the first electrode (610) (e.g., negative z-axis direction).

[0118] An electronic device (101) according to one embodiment of the present disclosure can move a second unit electrode (621) located near an area where heating needs to be concentrated in a body to be heated (D, see FIG. 2a) in a direction toward the first electrode (610) (e.g., in the positive z-axis direction) under the control of a processor (120).

[0119] In one embodiment, each of the plurality of second unit electrodes (621) may include a rotation center (622). Each of the plurality of second unit electrodes (621) may be rotated clockwise or counterclockwise around the rotation center (622) as an axis.

[0120] In one embodiment, the electronic device (101) can, under the control of the processor (120), cause a second unit electrode (621) positioned close to an area where heating needs to be concentrated in the body to be heated (D, see FIG. 2a) to rotate clockwise or counterclockwise so that the distance from the first electrode (610) becomes relatively closer.

[0121] In one embodiment, the electronic device (101) may include an impedance matching device (not shown). The impedance matching device (not shown) is positioned between a power source (not shown) and electrodes (610, 620) and may serve to reduce the difference between the output impedance of the power source (not shown) and the impedance of the electrodes (610, 620).

[0122] In various embodiments, the first electrode (610) and / or the second electrode (620) may include a metal (e.g., aluminum, iron).

[0123] FIG. 7 is a drawing showing a first plate (630) according to one embodiment of the present disclosure.

[0124] In one embodiment, the first plate (630) may include a polygonal cross-section. For example, the first plate (630) may have an octagonal cross-section in the xy plane. The first plate (630) may be formed with a height in the positive z-axis direction. Although FIG. 7 illustrates the first plate (630) having an octagonal cross-section, the cross-sectional shape of the first plate (630) may not be limited thereto.

[0125] In one embodiment, the second plate (640, see FIG. 6) may include a polygonal cross-section. For example, the second plate (640, see FIG. 6) may have an octagonal cross-section in the xy plane and may be formed with a height in the positive z-axis direction.

[0126] In one embodiment, the first plate (630) may include a first power supply section (631) in at least a portion. A power source (not shown) may be connected to the first power supply section (631) of the first plate (630) to supply voltage to the first plate (630).

[0127] In one embodiment, the second plate (640, see FIG. 6) may include a second power supply section (not shown) in at least a portion. A power source (not shown) may be connected to the second power supply section (not shown) of the second plate (640, see FIG. 6) to supply voltage to the second plate (640, see FIG. 6).

[0128] In one embodiment, the dielectric heating device (600, see FIG. 6) may include a shielding member (650). FIG. 7 shows a shielding member (650) surrounding a first plate (630) from the outside. FIG. 7 shows the shielding member (650) surrounding only the first plate (630), but the arrangement of the shielding member (650) is not limited thereto. For example, the shielding member (650) may be arranged to surround a first electrode (610, see FIG. 6), a second electrode (620, see FIG. 6), a first plate (630), and / or a second plate (640, see FIG. 6) from the outside.

[0129] In one embodiment, the shielding member (650) may have the same shape as the first plate (630). For example, if the first plate (630) is formed with an octagonal cross-section in the xy plane and a height in the positive z-axis direction, the shielding member (650) may be arranged to surround the first plate (630) from the outside and may be formed with an octagonal cross-section in the xy plane and a height in the positive z-axis direction.

[0130] In one embodiment, the shielding member (650) can block electromagnetic waves generated from the dielectric heating device (600, see FIG. 6) from being exposed to the outside. For example, the dielectric heating device (600, see FIG. 6) can radiate electromagnetic interference (EMI) noise to the outside, which can interfere with the normal operation of an electronic device located outside. The shielding member (650) can serve to block the radiation of electromagnetic interference noise.

[0131] FIG. 8 is a drawing showing a second electrode (620) and a second plate (640) according to an embodiment of the present disclosure.

[0132] In describing the second electrode (620) according to one embodiment of the present disclosure, the length direction of the second electrode (620) may mean the positive x-axis direction, and the width direction of the second electrode (620) may mean the positive y-axis direction. The height direction of the second electrode (620) may mean the positive z-axis direction.

[0133] Referring to FIG. 8, the second electrode (620) may include a plurality of second unit electrodes (621). Each of the plurality of second unit electrodes (621) may be spaced apart in the length direction (e.g., positive x-axis direction) and width direction (e.g., positive y-axis direction) of the second electrode (620).

[0134] In one embodiment, a plurality of second unit electrodes (621) may be disposed on one side of the second plate (640) (e.g., the side facing the height direction of the second plate (640)). The second plate (640) may support a plurality of second unit electrodes (621).

[0135] In one embodiment, each of the plurality of second unit electrodes (621) may include a protrusion (623). The protrusion (623) may have a cylindrical shape and may extend in the height direction (e.g., positive z-axis direction) of the second electrode (620).

[0136] In one embodiment, the protrusion (623) may include a sensor (not shown). The sensor (not shown) may measure the moisture content of a heated body (D, see FIG. 2a) placed between the second unit electrode (621) and the first electrode (610, see FIG.).

[0137] In one embodiment, each of the plurality of second unit electrodes (621) can be moved in the height direction (e.g., positive z-axis direction) and in the opposite direction to the height direction of the second electrode (620).

[0138] In one embodiment, each of the plurality of second unit electrodes (621) may be connected to a motor (not shown). The motor (not shown) may serve to move each of the second unit electrodes (621) in the height direction and in the opposite direction to the height direction of the second electrode (620).

[0139] In one embodiment, a plurality of second unit electrodes (621) may be simultaneously connected to a single motor (not shown). For example, four second unit electrodes (621) may be connected to a single motor (not shown). The motor (not shown) may serve to move the plurality of second unit electrodes (621) simultaneously in the height direction and in the opposite direction of the height direction of the second electrode (620).

[0140] FIG. 9 is a drawing showing an electrode moving device (650) according to one embodiment of the present disclosure.

[0141] A dielectric heating device (600, see FIG. 6) according to one embodiment of the present disclosure may include an electrode moving device (650), a locking member (660), and / or a switch (not shown). The electrode moving device (650) may be used to move a first unit electrode (611, see FIG. 6) or a second unit electrode (621) in the height direction (e.g., positive z-axis direction) or in the direction opposite to the height direction of the dielectric heating device (600, see FIG. 6).

[0142] In describing an electrode moving device (650) according to one embodiment of the present disclosure, the length direction of the electrode moving device may mean the positive y-axis direction, and the width direction may mean the x-axis direction. The height direction may mean the positive z-axis direction.

[0143] An electrode moving device (650) according to one embodiment of the present disclosure may include a rotating device (651), a connecting member (652) and / or a locking area (653).

[0144] An electrode moving device (650) according to one embodiment of the present disclosure may include a plurality of rotating devices (651). The rotating device (651) may include a motor that generates rotational motion.

[0145] A connecting member (652) according to one embodiment of the present disclosure may be connected to a rotating device (651) in at least a portion. The connecting member (652) may be formed to extend in the height direction of the electrode moving device (650).

[0146] In one embodiment, the connecting member (652) can convert rotational motion generated in the rotating device (651) into linear motion. For example, the connecting member (652) can be moved in the height direction and the opposite direction of the height direction of the electrode moving device (650).

[0147] An electrode moving device (650) according to one embodiment of the present disclosure may include a plurality of locking regions (653). Each of the plurality of locking regions (653) is connected to a connecting member (652) and may extend in a direction perpendicular to the connecting member (652). For example, each of the plurality of locking regions (653) may be formed by extending in the length direction (e.g., positive y-axis direction) of the electrode moving device (650). Each of the plurality of locking regions (653) may be spaced apart in the height direction (e.g., positive z-axis direction) of the electrode moving device (650).

[0148] In one embodiment, the connecting member (652) can be moved in the height direction and in the opposite direction of the height direction of the electrode moving device (650), and the locking area (653) connected to the connecting member (652) can be moved in the height direction and in the opposite direction of the height direction of the electrode moving device (650).

[0149] An electrode moving device (650) according to one embodiment of the present disclosure may include two rotating devices (651). The two rotating devices (651) may be rotated in opposite directions to each other.

[0150] In one embodiment, as two rotating devices (651) are rotated in opposite directions, a part of the electrode moving device (650) may be moved in the height direction of the electrode moving device (650), and the remaining part may be moved in the opposite direction to the height direction of the electrode moving device (650). For example, a locking area (653L) located on one side of the electrode moving device (650) may be moved in the height direction of the electrode moving device (650). A locking area (653R) located on the other side of the electrode moving device (650) may be moved in the opposite direction to the height direction of the electrode moving device (650).

[0151] In one embodiment, the catch member (660) may be connected to the second unit electrode (621). For example, the second unit electrode (621) may be connected to the catch member (660) in at least a portion.

[0152] In one embodiment, the electronic device (101) may include a plurality of locking members (660). Each of the plurality of locking members (660) may be connected to a plurality of second unit electrodes (621).

[0153] In one embodiment, the catch member (660) may include a hook shape in at least a portion.

[0154] In one embodiment, a plurality of second unit electrodes (621) may each be connected to an electrode moving device (650) using a locking member (660). For example, at least a portion of the locking member (660) may be seated in a locking area (653) of the electrode moving device (650), and the second unit electrode (621) and the electrode moving device (650) may be connected.

[0155] In one embodiment, the position of the catch area (653) on which the catch member (660) is seated can be determined by the state of a switch (not shown) included in the electrode moving device (650).

[0156] In one embodiment, when a switch (not shown) is in the ON state, a locking member (660) connected to a second unit electrode (621) can be seated in a locking area (653L) located on one side of the electrode moving device (650). Since the locking area (653L) located on one side of the electrode moving device (650) can be moved in the height direction of the electrode moving device (650), the second unit electrode (621) connected to the locking member (660) can also be moved in the height direction.

[0157] In one embodiment, when the switch is in the OFF state, the locking member (660) connected to the second unit electrode (621) can be seated in the locking area (653R) located on the other side of the electrode moving device (650). Since the locking area (653R) located on the other side of the electrode moving device (650) can be moved in the opposite direction to the height direction of the electrode moving device (650), the second unit electrode (621) connected to the locking member (660) can also be moved in the opposite direction to the height direction.

[0158] In one embodiment, the electronic device (101) can switch the switch to an ON / OFF state under the control of the processor (120). For example, to move the second unit electrode (621) in the height direction of the electrode moving device (650), the electronic device (101) can switch the switch to an ON state under the control of the processor (120). To move the second unit electrode (621) in the direction opposite to the height direction of the electrode moving device (650), the electronic device (101) can switch the switch to an OFF state under the control of the processor (120).

[0159] FIG. 10 is a flowchart illustrating a method of operation (S100) of an electronic device (101) including a dielectric heating device (600) according to various embodiments of the present disclosure.

[0160] Referring to FIG. 10, a method of operation (S100) of an electronic device (101) including a dielectric heating device (600) according to various embodiments of the present disclosure may include: an operation (S110) of operating a plurality of unit electrodes (611, 621) included in the dielectric heating device (600); an operation (S120) of estimating the amount of moisture in a portion of a body (D) to be heated, which is placed on each of the plurality of unit electrodes (611, 621); an operation (S130) of comparing the estimated amount of moisture in the portion of the body (D) to be heated with a predetermined reference value; an operation (S140) of reducing the distance formed between the unit electrode (611, 621) to which the portion of the body (D) to be heated is placed and the counterpart electrode, where the estimated amount of moisture exceeds the reference value; and / or an operation (S150) of adjusting the distance between the plurality of unit electrodes (611, 621) and the counterpart electrode to be equal.

[0161] In operation S110, the electronic device (101) can operate each of the multiple unit electrodes (611, 621) included in the dielectric heating device (600) under the control of the processor (120). The operation of the unit electrodes (611, 621) may mean moving the unit electrodes (611, 621) toward the body to be heated (D) and heating the body to be heated (D).

[0162] In various embodiments, the plurality of unit electrodes (611, 621) may be a first unit electrode (611) or a second unit electrode (621). In operation S110, the first unit electrode (611) of the dielectric heating device (600) may be operated or the second unit electrode (621) of the dielectric heating device (600) may be operated.

[0163] In operation S110, the electronic device (101) can heat a body to be heated (D) placed between the first electrode (610) and the second electrode (620) by moving a plurality of unit electrodes (611, 621) in a direction toward the body to be heated (D) under the control of the processor (120). For example, a plurality of second unit electrodes (621) are moved in a direction toward the body to be heated (D), and the body to be heated (D) can be heated.

[0164] In operation S110, the electronic device (101), under the control of the processor (120), sequentially operates unit electrodes (611, 621) along the longitudinal direction of the dielectric heating device (600) (e.g., positive x-axis direction, see FIG. 6) and can heat a body (D) placed adjacent to the unit electrodes (611, 621). For example, a plurality of second unit electrodes (621) can be sequentially operated along the longitudinal direction of the dielectric heating device (600).

[0165] In operation S110, the electronic device (101) can heat the object to be heated (D) for a predetermined time under the control of the processor (120).

[0166] In operation S120, the electronic device (101) can estimate the amount of moisture in the portion of the body to be heated (D) placed on each of the plurality of unit electrodes (611, 621) under the control of the processor (120).

[0167] In various embodiments, the body to be heated (D) may include a plurality of partial regions of the body to be heated (D). The body to be heated (D) may be divided into a plurality of partial regions of the body to be heated (D) based on the boundary between each unit electrode (611, 621). A partial region of the body to be heated (D) may refer to a part of the body to be heated (D) that is placed adjacent to each unit electrode (611, 621).

[0168] In various embodiments, the amount of moisture in the portion of the body to be heated (D) can be estimated based on the impedance value between the first electrode (610) and the second electrode (620).

[0169] In various embodiments, the counter electrode may refer to an electrode located opposite one electrode and having an opposite charge. For example, the counter electrode of the second electrode (620) and the second unit electrode (620) may refer to the first electrode (610).

[0170] In various embodiments, the impedance value between the first electrode (610) and the second electrode (620) may mean the impedance value between the unit electrodes (611, 621) and the counter electrodes (620, 610). For example, if the first electrode (610) includes a plurality of first unit electrodes (611), the impedance value may mean a plurality of impedance values ​​between the plurality of first unit electrodes (611) and the second electrode (620). If the second electrode (620) includes a plurality of second unit electrodes (621), the impedance value may mean a plurality of impedance values ​​between the plurality of second unit electrodes (621) and the first electrode (610).

[0171] In operation S120, the electronic device (101) can estimate the amount of moisture of the body to be heated (D) through the difference between the reference impedance value and the measured impedance value under the control of the processor (120). For example, the electronic device (101) can estimate the amount of moisture of the body to be heated (D) at the measured impedance value based on the amount of moisture of the body to be heated (D) at the reference impedance value under the control of the processor (120).

[0172] In various embodiments, the reference impedance value may be the impedance value when a body to be heated (D) having no moisture content or a value below a predetermined reference is placed between the first electrode (610) and the second electrode (620). The measured impedance value may be the impedance value measured when a body to be heated (D) is placed between the first electrode (610) and the second electrode (620) of the dielectric heating device (600).

[0173] In operation S120, the electronic device (101) can estimate the amount of moisture of the body to be heated (D) based on the weight of the body to be heated (D) placed between the first electrode (610) and the second electrode (620) under the control of the processor (120).

[0174] In various embodiments, the first electrode (610) and the second electrode (620) may include a sensor capable of detecting weight. For example, each of the plurality of second unit electrodes (620) may include a sensor capable of detecting weight at a protrusion (623, see FIG. 8).

[0175] In operation S120, the electronic device (101) can estimate the amount of moisture of the body to be heated (D) based on the temperature of the body to be heated (D) placed between the first electrode (610) and the second electrode (620) under the control of the processor (120).

[0176] In various embodiments, the first electrode (610) or the second electrode (620) may include an infrared sensor capable of detecting temperature. For example, each of the plurality of second unit electrodes (620) may include an infrared sensor capable of detecting temperature.

[0177] In operation S130, the electronic device (101) can compare the estimated moisture content of a portion of the body to be heated (D) with a predetermined reference value under the control of the processor (120).

[0178] In operation S120, the amount of moisture in the portion of the body to be heated (D) placed on each of the plurality of unit electrodes (611, 621) can be estimated. For example, the amount of moisture in the portion of the body to be heated (D) placed on each of the second unit electrodes (621) can be estimated.

[0179] In various embodiments, the reference value compared with the moisture content estimate may be an absolute value determined in advance before the electronic device (101) is operated. For example, the reference value may be an appropriate moisture content value determined based on a reference impedance value.

[0180] In various embodiments, an appropriate moisture content value may be predetermined based on the moisture content of a body to be heated (D) having a reference impedance value. For example, the moisture content of the body to be heated (D) at an impedance value that differs by a predetermined amount from the reference impedance value may be determined as an appropriate moisture content value.

[0181] In operation S130, the electronic device (101) can compare the moisture content of a portion of the body to be heated (D) with a reference value (e.g., a predetermined appropriate moisture content value) under the control of the processor (120).

[0182] In various embodiments, the appropriate moisture content value may be determined based on a reference impedance phase (710, see FIG. 11). For example, the moisture content of the body to be heated (D) at an impedance phase that differs by a predetermined amount from the reference impedance phase (710, see FIG. 11) may be determined as the appropriate moisture content value.

[0183] In various embodiments, the appropriate moisture content value may be determined based on a reference impedance ratio (810, see FIG. 12). For example, the moisture content of the body to be heated (D) at an impedance ratio that differs by a predetermined amount from the reference impedance ratio (810, see FIG. 12) may be determined as the appropriate moisture content value.

[0184] In various embodiments, the reference value compared with the estimated moisture content may be a relative value determined while the electronic device (101) is in operation. The reference value may be determined based on the moisture content distribution of the portion of the body to be heated (D) estimated in operation S120. For example, the reference value may be determined as the moisture content value of the portion of the body to be heated (D) with the smallest moisture content, or as the median value of the moisture content distribution of the entire portion of the body to be heated (D).

[0185] In operation S130, the electronic device (101) can compare the moisture content of a portion of the body to be heated (D) with a relatively determined reference value under the control of the processor (120). For example, in operation S130, the electronic device (101) can compare the moisture content of the portion of the body to be heated (D) to be compared with the moisture content value of the portion of the body to be heated (D) with the moisture content of the portion with the smallest moisture content among the portions of the body to be heated (D).

[0186] In operation S140, the electronic device (101) can reduce the electrode distance of the unit electrode (611, 621) in which the moisture content estimate in operation S130 exceeds the reference value, under the control of the processor (120).

[0187] In various embodiments, the electrode distance of the unit electrode (611, 621) may refer to the distance formed by the unit electrode (611, 621) with the counter electrode (620, 610). For example, the electrode distance of the second unit electrode (621) may refer to the straight-line distance from the second unit electrode (621) to the first electrode (610).

[0188] If, in operation S130, the estimated moisture content of a partial region of at least one body to be heated (D) exceeds a reference value, in operation S140, the electronic device (101) can, under the control of the processor (120), reduce the electrode distance of the unit electrode (611, 621) on which the partial region of the body to be heated (D) on which the estimated moisture content exceeds the reference value is disposed.

[0189] In various embodiments, the unit electrode (611, 621) with reduced electrode distance has a stronger electric field strength compared to the remaining unit electrode, so it can heat the body to be heated (D) relatively strongly.

[0190] The electronic device (101) that performed the S140 operation can return to the S110 operation under the control of the processor (120) and operate the unit electrodes (611, 621). For example, in the S110 operation, the electronic device (101) can reheat the body to be heated (D) for a predetermined time using the unit electrodes (611, 621) with reduced electrode distances and the remaining unit electrodes (611, 621) with unchanged electrode distances, under the control of the processor (120).

[0191] In operation S150, the electronic device (101) can adjust the electrode distances of multiple unit electrodes (611, 621) equally under the control of the processor (120).

[0192] If, in operation S130, the estimated moisture content of a partial region of all heated bodies (D) is determined to be less than or equal to a reference value, operation S150 may be performed.

[0193] In operation S150, the electronic device (101) can adjust the electrode distance of each of the plurality of unit electrodes (611, 621) equally under the control of the processor (120). For example, the straight distance from the second unit electrode (621) to the first electrode (610) can be adjusted equally.

[0194] In various embodiments, when the electrode distances of the plurality of unit electrodes (611, 621) are adjusted equally, each part area of ​​the body to be heated (D) can be heated evenly.

[0195] FIG. 11 is a graph showing a reference impedance phase (710) and a measured impedance phase (720) according to various embodiments of the present disclosure.

[0196] The graph 700 exemplarily shows the change in reference impedance phase (710) and measured impedance phase (720) in the dielectric heating device (600) illustrated in FIG. 6.

[0197] In the graph of 700, the horizontal axis represents the operating frequency of the dielectric heating device (600), and the vertical axis may represent the impedance phase.

[0198] In various embodiments, the impedance may include a real part determined by a resistance value and an imaginary part determined by a capacitor value and a coil value.

[0199] In various embodiments, impedance may be represented as a vector expressed in real and imaginary coordinates on a complex plane having an x-axis and a y-axis. For example, the real part value may represent the x-axis value on the complex plane, and the imaginary part value may represent the y-axis value on the complex plane. The phase of the impedance may represent the angle formed by the impedance vector with the x-axis on the complex plane.

[0200] In various embodiments, the reference impedance phase (710) may refer to the phase of the reference impedance. The reference impedance may refer to the impedance when a heated body (D) having no moisture content or a value below a predetermined standard is placed between the first electrode (610) and the second electrode (620).

[0201] In various embodiments, the measured impedance phase (720) may refer to the impedance phase measured when the object to be heated (D) is placed between the first electrode (610) and the second electrode (620) of the dielectric heating device (600).

[0202] Referring to FIG. 11, a difference may appear between the reference impedance phase (710) and the measurement impedance phase (720) at a given frequency. For example, at a frequency of 40 MHz, the reference impedance phase (710) and the measurement impedance phase (720) may differ by a first length (L1).

[0203] In operation S120, the electronic device (101) can estimate the amount of moisture of the body to be heated (D) based on the difference between the reference impedance phase (710) and the measurement impedance phase (720) (e.g., the first length (L1)) under the control of the processor (120).

[0204] FIG. 12 is a graph showing the reference impedance ratio (810) and the measured impedance ratio according to various embodiments of the present disclosure.

[0205] The graph 800 exemplarily shows the change in reference impedance ratio (810) and measured impedance ratio (820) in the dielectric heating device (600) shown in FIG. 6.

[0206] In the graph, the horizontal axis represents the operating frequency of the dielectric heating device (600), and the vertical axis represents the impedance ratio.

[0207] In various embodiments, the impedance may include a real part determined by a resistance value and an imaginary part determined by a capacitor value and a coil value.

[0208] In various embodiments, the impedance ratio may mean the value obtained by dividing the imaginary part of the impedance by the real part of the impedance.

[0209] In various embodiments, the reference impedance ratio (810) may refer to the impedance ratio of the reference impedance. The reference impedance may refer to the impedance when a heated body (D) having no moisture content or a value below a predetermined standard is placed between the first electrode (610) and the second electrode (620).

[0210] In various embodiments, the measured impedance ratio (820) may mean the impedance ratio measured when a body (D) to be heated is placed between the first electrode (610) and the second electrode (620) of the dielectric heating device (600).

[0211] Referring to FIG. 12, a difference may appear between the reference impedance ratio (810) and the measured impedance ratio (820) at a given frequency. For example, at a frequency of 40 MHz, the difference between the reference impedance ratio (810) and the measured impedance ratio (820) may be a second length (L2).

[0212] In operation S120, the electronic device (101) can estimate the moisture content of the body to be heated (D) based on the difference between the reference impedance ratio (810) and the measured impedance ratio (820) (e.g., the second length (L2)) under the control of the processor (120).

[0213] The electronic device according to the various embodiments of the present disclosure may be of various forms. The electronic device may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a consumer electronics device. The electronic device according to the embodiments of the present disclosure is not limited to the devices described above.

[0214] The various embodiments of the present disclosure and the terms used therein are not intended to limit the technical features described in the present disclosure to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of said embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of said items unless the relevant context clearly indicates otherwise. In the present disclosure, each of phrases such as “A or B”, “at least one of A and B”, “at least one of A or B”, “A, B or C”, “at least one of A, B and C”, and “at least one of A, B, or C” may include any one of the items listed together in the corresponding phrase, or all possible combinations thereof. Terms such as “first,” “second,” or “first” or “second” may be used simply to distinguish a component from another component and do not limit the components in any other aspect (e.g., importance or order). Where any (e.g., first) component is referred to as “coupled” or “connected” to another (e.g., second) component, with or without the terms “functionally” or “communicationally,” it means that said component may be connected to said other component directly (e.g., wired), wirelessly, or through a third component.

[0215] The term “module” as used in various embodiments of the present disclosure may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit, for example. A module may be a component formed integrally, or a minimum unit of said component or a part thereof that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0216] Various embodiments of the present disclosure may be implemented as software (e.g., program (140)) comprising one or more instructions stored in a storage medium (e.g., internal memory (136) or external memory (138)) readable by a machine (e.g., electronic device (101)). For example, a processor (e.g., processor (120)) of the machine (e.g., electronic device (101)) may call at least one of the one or more instructions stored in the storage medium and execute it. This enables the machine to be operated to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code that can be executed by an interpreter. The storage medium readable by the machine may be provided in the form of a non-transitory storage medium. Here, 'non-temporary' simply means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily.

[0217] According to one embodiment, the method according to various embodiments of the present disclosure may be provided by being included in a computer program product. The computer program product may be traded between a seller and a buyer as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., compact disc read-only memory (CD-ROM)), or distributed online (e.g., download or upload) through an application store (e.g., Play Store™) or directly between two user devices (e.g., smartphones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily created in a device-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

[0218] According to various embodiments, each component (e.g., module or program) of the components described above may include a singular or multiple entities, and some of the multiple entities may be separated and placed in other components. According to various embodiments, one or more of the components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Generally or additionally, multiple components (e.g., module or program) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the multiple components in the same or similar manner as those performed by the corresponding component among the multiple components prior to integration. According to various embodiments, operations performed by the module, program, or other components may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

Claim 1 An electronic device comprising: a processor; a power supply; and a dielectric heating device, wherein the dielectric heating device comprises: a first electrode connected to the power supply; and a second electrode connected to the power supply and spaced apart in a direction away from one surface of the first electrode, wherein the second electrode comprises a plurality of second unit electrodes spaced apart in the length direction and the width direction, respectively, and wherein the dielectric heating device heats a body to be heated disposed between the first electrode and the second electrode, and wherein the processor estimates the amount of moisture in a partial region of the body to be heated disposed at a position corresponding to each of the plurality of second unit electrodes, and determines an electrode distance, which is a straight distance between the first electrode and the second unit electrode, based on the amount of moisture. Claim 2 In claim 1, the processor is an electronic device that reduces the electrode distance, which is a straight-line distance between the second unit electrode and the first electrode, positioned at a location corresponding to the partial region where the estimated moisture amount exceeds a reference value. Claim 3 In claim 1, the processor is an electronic device that estimates the moisture content of the partial region based on the impedance value between the first electrode and the second unit electrode. Claim 4 In paragraph 3, the processor is an electronic device that estimates the moisture content of the partial region based on the ratio of the real part value and the imaginary part value of the impedance value. Claim 5 In claim 1, each of the plurality of second unit electrodes includes a weight sensor, and the processor is an electronic device that estimates the moisture content of the partial region based on the weight of the partial region measured by the weight sensor. Claim 6 In claim 1, each of the plurality of second unit electrodes includes an infrared sensor, and the processor is an electronic device that estimates the amount of moisture in the partial region based on the temperature of the partial region measured by the infrared sensor. Claim 7 In claim 1, each of the plurality of second unit electrodes is an electronic device that rotates about an axis of a center of rotation located at the center of the second unit electrode in the longitudinal direction of the second unit electrode. Claim 8 In claim 7, the processor is an electronic device that rotates the second unit electrode positioned at a location corresponding to the partial region where the estimated moisture amount exceeds a reference value. Claim 9 In claim 1, the electronic device further comprises a plate, and the plurality of second unit electrodes are disposed on one surface of the plate. Claim 10 In claim 1, the electronic device further comprises: an electrode moving device; and a plurality of locking members each connected to a plurality of second unit electrodes, wherein the electrode moving device comprises a rotating device that generates rotational motion, a connecting member that is connected to the rotating device in at least a portion thereof, converts the rotational motion of the rotating device into linear motion, and extends in a height direction, and a plurality of locking regions that are spaced apart in the height direction of the electrode moving device and extend perpendicularly to the connecting member, and wherein the plurality of second unit electrodes are connected to the electrode moving device and moved using the locking members that are seated in the locking regions. Claim 11 An electronic device according to claim 10, wherein a part of the electrode moving device moves in the height direction, and the remaining part of the electrode moving device moves in the opposite direction to the height direction. Claim 12 An electronic device according to claim 1, wherein at least a portion of the first electrode is bent toward the second electrode. Claim 13 An electronic device according to claim 1, wherein at least a portion of the first electrode is bent in a direction opposite to the direction toward the second electrode. Claim 14 A method of operation of an electronic device including a dielectric heating device, comprising: an operation of operating a second electrode including a first electrode connected to a power source to heat a body to be heated, and a plurality of second unit electrodes connected to the power source and spaced apart in a direction away from one surface of the first electrode and spaced apart in the length direction and width direction, respectively; an operation of estimating the moisture content of a partial region of the body to be heated, positioned at a location corresponding to each of the plurality of second unit electrodes; an operation of comparing the estimated moisture content with a reference value; an operation of reducing the electrode distance, which is a straight-line distance between the first electrode and the second unit electrode positioned at the location corresponding to the partial region of the body to be heated where the estimated moisture content exceeds the reference value, when the estimated moisture content exceeds the reference value; and an operation of adjusting the electrode distance to be equal when the estimated moisture content is all less than or equal to the reference value. Claim 15 In claim 14, the amount of moisture in the above partial region is estimated based on the impedance value between the first electrode and the second unit electrode in a method of operating an electronic device. Claim 16 In paragraph 14, the moisture content of the above-mentioned partial region is estimated based on the weight of the above-mentioned partial region in a method of operation of an electronic device. Claim 17 In paragraph 14, the amount of moisture in the above-mentioned partial region is estimated based on the temperature of the above-mentioned partial region in a method of operation of an electronic device. Claim 18 In claim 14, a method of operation of an electronic device wherein each of the plurality of second unit electrodes is rotated about an axis of a rotation center located at the center of the second unit electrode in the longitudinal direction of the second unit electrode. Claim 19 In claim 14, the electronic device further comprises: an electrode moving device; and a plurality of locking members each connected to the plurality of second unit electrodes, wherein the electrode moving device comprises a rotating device that generates rotational motion, a connecting member that is connected to the rotating device in at least a portion thereof, converts the rotational motion of the rotating device into linear motion, and extends in a height direction, and a plurality of locking regions that are spaced apart in the height direction of the electrode moving device and extend perpendicularly to the connecting member, and wherein the plurality of second unit electrodes are connected to the electrode moving device and moved using the locking members that are seated in the locking regions. Claim 20 A method of operation of an electronic device according to claim 19, wherein a part of the electrode moving device is moved in the height direction, and the remaining part of the electrode moving device is moved in the opposite direction to the height direction.

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