Heater, and hot air blower and water purifier having same

Abstract

Provided are a heater, and a hot air blower and water purifier having same. The heater is provided to heat a fluid and may comprise: a first graphene scroll provided to generate heat when a current flows; a first electrode provided to apply a voltage to the first graphene scroll; a second graphene scroll disposed in parallel with the first graphene scroll, forming a heating flow path in which the fluid is heated together with the first graphene scroll, and provided to generate heat when a current flows; and a second electrode provided to apply a voltage to the second graphene scroll.

Description

Heater, hot air device including same and water purifier

[0001] The present disclosure relates to a hot air device and a water purification device including a heater.

[0002] A hot air device is a device that provides hot air by drawing in air, heating the drawn-in air, and then discharging it. The hot air device may include a fan and a fan motor for generating air flow, and a heat source for heating the drawn-in air. The fan, the fan motor, and the heat source may be provided within the main body of the hot air device, and when the fan rotates due to the operation of the fan motor, air outside the hot air device may be drawn into the main body, heated by the heat source, and then discharged from the main body again.

[0003] Types of heating devices include hair dryers, which are commonly used in households, and industrial heating devices. Furthermore, heating devices may not be standalone devices in their own right, but rather serve as modules for heating air within various devices, such as home appliances.

[0004] A water purifier is a device that provides drinking water to users by removing harmful substances from raw water, such as tap water or groundwater, through various purification methods, such as sedimentation, filtration, and sterilization. A water purifier is equipped with one or more water filters to filter the incoming water, thereby providing clean water to users.

[0005] Water purifiers can be categorized by type: direct-connected, which connect directly to a faucet, and storage-type, which store water in a container and pass it through a filter. Furthermore, water purifiers can be categorized by their purification principle or method: natural filtration, direct-connected filtration, ion exchange resin, distillation, and reverse osmosis.

[0006] The purified water produced by the water purification device is discharged through a dispenser and can be used as drinking water or cooking water.

[0007] A water purification device may be configured to provide purified water at various temperatures. For example, the water purification device may include a chiller to cool the purified water, thereby providing cold water. Alternatively, for example, the water purification device may include a heater to heat the purified water, thereby providing hot water.

[0008] One aspect of the present disclosure provides a heater having an improved structure to enhance heating efficiency of a fluid, a hot air device including the same, and a water purification device.

[0009] One aspect of the present disclosure provides a heater having an improved structure so as to reduce power consumption, a water purification device including the same, and a hot air device.

[0010] One aspect of the present disclosure provides a heater having an improved structure to improve a temperature change rate, a hot air device including the same, and a water purification device.

[0011] One aspect of the present disclosure provides a heater having an improved structure so that the shape of a graphene scroll can be stably maintained, a hot air device including the same, and a water purification device.

[0012] One aspect of the present disclosure provides a heater having an improved structure for easy heat generation control, a hot air device including the same, and a water purification device.

[0013] One aspect of the present disclosure provides a heater having an improved structure for increasing flow rate, a hot air device including the same, and a water purification device.

[0014] The technical problems to be achieved in this document are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0015] A heater according to one embodiment of the present disclosure is a heater configured to heat a fluid, the heater including: a first graphene scroll configured to generate heat when current flows therethrough; a first electrode configured to apply voltage to the first graphene scroll; a second graphene scroll arranged parallel to the first graphene scroll, forming a heating path through which the fluid is heated together with the first graphene scroll, and configured to generate heat when current flows therethrough; and a second electrode configured to apply voltage to the second graphene scroll.

[0016] A hot air device according to one embodiment of the present disclosure may include a main body, a fan disposed in the main body, and a heater disposed in the main body and configured to heat air flowing along a heating path as the fan rotates. The heater may include a first graphene scroll configured to generate heat when current flows therethrough, a first electrode configured to apply voltage to the first graphene scroll, a second graphene scroll configured to be disposed parallel to the first graphene scroll, form the heating path together with the first graphene scroll, and generate heat when current flows therethrough, and a second electrode configured to apply voltage to the second graphene scroll.

[0017] A water purifying device according to one embodiment of the present disclosure may include a dispenser that provides purified water, and a heater that is configured to heat purified water flowing along a heating path. The heater may include a first graphene scroll that is configured to generate heat when current flows through it, a first electrode that is configured to apply voltage to the first graphene scroll, a second graphene scroll that is arranged parallel to the first graphene scroll and forms a heating path through which a fluid is heated together with the first graphene scroll, and is configured to generate heat when current flows through it, and a second electrode that is configured to apply voltage to the second graphene scroll.

[0018] FIG. 1 is a cross-sectional view illustrating a hot air device according to one embodiment of the present disclosure.

[0019] FIG. 2 is a block diagram illustrating some components of a hot air device according to one embodiment of the present disclosure.

[0020] FIG. 3 is a drawing illustrating a heater included in a hot air device according to one embodiment of the present disclosure.

[0021] FIG. 4 is a cross-sectional view illustrating a graphene scroll of a heater included in a hot air device according to one embodiment of the present disclosure.

[0022] FIG. 5 is a drawing showing a graphene sheet forming the graphene scroll of FIG. 3 and electrodes connected to the graphene sheet.

[0023] FIG. 6 is an enlarged view of a portion of a graphene scroll of a hot air device according to one embodiment of the present disclosure.

[0024] FIG. 7 is an enlarged view of a portion of a graphene scroll of a hot air device according to one embodiment of the present disclosure.

[0025] FIG. 8 is a drawing illustrating a heater included in a hot air device according to one embodiment of the present disclosure.

[0026] FIG. 9 is a drawing showing a graphene sheet forming the graphene scroll of FIG. 8 and electrodes connected to the graphene sheet.

[0027] FIG. 10 is a drawing illustrating a heater included in a hot air device according to one embodiment of the present disclosure, which heater includes a plurality of graphene scrolls.

[0028] Fig. 11 is a cross-sectional view showing a plurality of graphene scrolls of the heater of Fig. 10 cut apart.

[0029] FIG. 12 is a diagram illustrating graphene sheets each forming a plurality of graphene scrolls included in a hot air device according to one embodiment of the present disclosure, and electrodes each connected to the graphene sheets.

[0030] FIG. 13 is a diagram illustrating graphene sheets each forming a plurality of graphene scrolls included in a hot air device according to one embodiment of the present disclosure, and electrodes each connected to the graphene sheets.

[0031] FIG. 14 is an enlarged view of a portion of a plurality of graphene scrolls included in a hot air device according to one embodiment of the present disclosure.

[0032] FIG. 15 is an enlarged view of a portion of a plurality of graphene scrolls included in a hot air device according to one embodiment of the present disclosure.

[0033] FIG. 16 is a drawing illustrating a heater included in a hot air device according to one embodiment of the present disclosure, which heater includes a plurality of graphene scrolls.

[0034] FIG. 17 is a cross-sectional view illustrating a portion of a hot air device according to one embodiment of the present disclosure.

[0035] FIG. 18 is a schematic diagram illustrating a water purification device according to one embodiment of the present disclosure.

[0036] FIG. 19 is a drawing illustrating a dispenser and a heater of a water purification device according to one embodiment of the present disclosure.

[0037] FIG. 20 is a cross-sectional view illustrating a dispenser and a heater of a water purification device according to one embodiment of the present disclosure.

[0038] FIG. 21 is a block diagram illustrating some components of a water purification device according to one embodiment of the present disclosure.

[0039] FIG. 22 is a cross-sectional view illustrating a portion of a water purification device according to one embodiment of the present disclosure.

[0040] The embodiments described in this specification and the configurations illustrated in the drawings are merely preferred examples of the disclosed invention, and there may be various modified examples that can replace the embodiments and drawings of this specification at the time of filing of this application.

[0041] Additionally, the same reference numbers or symbols presented in each drawing of this specification represent parts or components that perform substantially the same function.

[0042] In addition, the terminology used in this specification is used to describe embodiments and is not intended to limit and / or restrict the disclosed invention. The singular expression includes plural expression unless the context clearly indicates otherwise. In this specification, the terms "comprise" or "have" and the like are intended to specify the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0043] Additionally, terms including ordinal numbers such as “first,” “second,” etc. used herein may be used to describe various components, but the components are not limited by the terms, and the terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. The term “and / or” includes any combination of a plurality of related listed items or any item among a plurality of related listed items.

[0044] The terms 'part, module, member, block' used in this specification may be implemented in software or hardware, and according to embodiments, a plurality of 'parts, modules, members, blocks' may be implemented as one component, or a single 'part, module, member, block' may include a plurality of components.

[0045] In this specification, when a part is said to be “connected” to another part, this includes not only cases where it is directly connected, but also cases where it is indirectly connected, and an indirect connection includes a connection via a wireless communication network.

[0046] Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings.

[0047] Hereinafter, with reference to FIGS. 1 to 17, a hair dryer, which is mainly used in the home as a type of hot air device, will be described as an example. However, the configuration of the present disclosure is not limited to a hair dryer and may be applied to a hot air device used for industrial purposes. Alternatively, the configuration of the present disclosure may be applied to a hot air device as a module for heating air and providing hot air inside various devices such as home appliances, even if the hot air device is not an independent device in itself.

[0048] FIG. 1 is a cross-sectional view illustrating a hot air device according to one embodiment of the present disclosure.

[0049] Referring to FIG. 1, a hot air device (1) according to one embodiment of the present disclosure may include a main body (10), a fan (21), and a heater (100).

[0050] The main body (10) can form the exterior of the hot air device (1). Various components of the hot air device (1) can be arranged inside the main body (10). The main body (10) can accommodate and support various components of the hot air device (1).

[0051] The main body (10) can form a flow path through which air flows. The flow path can be provided inside the main body (10). Specifically, the main body (10) can include a main body inlet (10a) through which air is introduced into the inside of the main body (10), and a main body outlet (10b) through which air is discharged from the inside of the main body (10). The flow path inside the main body (10) can be formed between the main body inlet (10a) and the main body outlet (10b). The flow path inside the main body (10) can extend from the main body inlet (10a) to the main body outlet (10b), and air introduced into the inside of the main body (10) through the main body inlet (10a) can flow along the flow path and then be discharged to the outside of the main body (10) through the main body outlet (10b).

[0052] For example, the main body inlet (10a) may include one or more holes formed to allow air to pass through. For example, the main body outlet (10b) may include one or more holes formed to allow air to pass through.

[0053] The fan (21) of the hot air device (1) may be placed inside the main body (10). The fan (21) may be arranged to be rotatable within the main body (10) with respect to the main body (10). The fan (21) may generate a pressure difference so that air flows along a flow path inside the main body (10). Specifically, the fan (21) may generate a pressure difference so that air outside the main body (10) is introduced into the inside of the main body (10) through the main body inlet (10a) when the fan (21) rotates. In addition, the fan (21) may generate a pressure difference so that air introduced into the inside of the main body (10) through the main body inlet (10a) when the fan (21) rotates flows along a flow path inside the main body (10). In addition, the fan (21) can generate a pressure difference so that air inside the main body (10) is discharged to the outside of the main body (10) through the main body outlet (10b) when the fan (21) rotates. That is, when the fan (21) rotates with respect to the main body (10), air outside the main body (10) can be drawn in through the main body inlet (10a) by the pressure difference generated by the fan (21) and discharged through the main body outlet (10b).

[0054] The hot air device (1) may include a fan motor (22) configured to generate power for rotating a fan (21). The fan motor (22) may be configured to convert electromagnetic force into mechanical rotational force. The fan (21) may receive power generated by the fan motor (22) and rotate relative to the main body (10).

[0055] For example, a fan motor (22) may include a stator in which a coil is provided, a rotor having magnetism and configured to rotate by electromagnetic force, and a rotor shaft connecting the rotor and the fan (21). When a driving voltage is applied to the fan motor (22), the electromagnetic force between the stator and the rotor is converted into rotational force, allowing the rotor to rotate. The power generated as the rotor rotates may be transmitted to the fan (21) through the rotor shaft, and the fan (21) may rotate around the rotor shaft.

[0056] For example, the fan (21) may include various types of fans such as an axial fan and a centrifugal fan.

[0057] The fan (21) and the fan motor (22) may be supported by the body (10) within the body (10). For example, the body (10) may include a fan housing (11) in which the fan (21) and the fan motor (22) are accommodated. The fan (21) and the fan motor (22) may be supported by the fan housing (11). At least a portion of a flow path for air flowing from the body inlet (10a) toward the body outlet (10b) may be formed within the fan housing (11).

[0058] For example, the fan housing (11) may be formed with the aforementioned body inlet (10a).

[0059] The heater (100) of the hot air device (1) may be configured to generate heat. The heater (100) may be configured to heat air by generating heat. The heater (100) may be configured to generate heat based on the voltage applied.

[0060] A heater (100) may be placed in the main body (10). The heater (100) may be provided to heat air flowing through the internal passage of the main body (10). The heater (100) may be provided to heat air flowing through the main body inlet (10a) and toward the main body outlet (10b) when the fan (21) rotates.

[0061] For example, the main body (10) may include a duct (12). The duct (12) may be provided between the main body inlet (10a) and the main body outlet (10b). At least a portion of a flow path for air flowing from the main body inlet (10a) toward the main body outlet (10b) may be formed inside the duct (12).

[0062] The duct (12) may be connected to the fan housing (11). The interior of the duct (12) and the interior of the fan housing (11) may be connected to each other. For example, the duct (12) may be formed with the aforementioned main body outlet (10b). That is, when the fan (21) rotates, air drawn in through the main body inlet (10a) of the fan housing (11) may sequentially pass through the fan housing (11) and the duct (12) and be discharged through the main body outlet (10b).

[0063] At this time, as shown in Fig. 1, the heater (100) may be placed inside the duct (12). That is, the heater (100) may be arranged to heat the air flowing along the duct (12).

[0064] The heater (100) may be supported by a duct (12). Although not shown in FIG. 1, various structures for supporting the heater (100) may be provided inside the duct (12). For example, a heater support may be provided inside the duct (12) to surround the outer circumference of the heater (100) and secure the heater (100). The heater support may be coupled to the inner circumference of the duct (12). Alternatively, the heater support may be formed integrally with the inner circumference of the duct (12).

[0065] The heater (100) may include an inlet (101) provided to allow air to flow into the heater (100) and an outlet (102) provided to allow air to flow out of the heater. When the fan (21) rotates and air flows inside the main body (10), the air may flow into the heater (100) through the inlet (101), be heated, and then be discharged through the outlet (102).

[0066] The inlet (101) may be located downstream of the flow path than the main body inlet (10a). The outlet (102) may be located upstream of the flow path than the main body outlet (10b). The inlet (101) may be located upstream of the flow path than the outlet (102).

[0067] The inlet (101) may be provided on one side of the heater (100). For example, the inlet (101) may be provided on one side adjacent to the fan (21) of the heater (100). For example, the inlet (101) may be provided on one side adjacent to the main body inlet (10a) of the heater (100).

[0068] The outlet (102) may be provided on the opposite side of the heater (100) where the inlet (101) is located. For example, the outlet (102) may be provided on the side adjacent to the main body outlet (10b) of the heater (100).

[0069] For example, the width of the inlet (101) and the width of the outlet (102) may roughly correspond. In other words, the cross-sectional area of ​​the inlet (101) and the cross-sectional area of ​​the outlet (102) may roughly correspond.

[0070] However, in contrast to this, the width of the inlet (101) may be greater than the width of the outlet (102), or the width of the inlet (101) may be smaller than the width of the outlet (102), and the width of the inlet (101) may be different from the width of the outlet (102) (e.g., see FIG. 17).

[0071] The heater (100) may be formed to have a bar shape extending in one direction. For example, the heater (100) may extend linearly between the inlet (101) and the outlet (102) along the direction in which the inlet (101) and the outlet (102) face each other. However, the present invention is not limited thereto, and the heater (100) may also extend so as to have at least a portion of the heater (100) bent between the inlet (101) and the outlet (102).

[0072] The heater (100) can form a heating path (103). The heating path (103) can form at least a portion of the path inside the body (10) described above. The heating path (103) can be located between the body inlet (10a) and the body outlet (10b). When the fan (21) rotates, air can pass through the heating path (103), and the heater (100) can heat the air passing through the heating path (103).

[0073] The heating path (103) may extend between the inlet (101) and the outlet (102) of the heater (100). The heating path (103) may be provided on the inside of the heater (100). The heating path (103) may be provided in a space formed on the inside of the heater (100). The outer circumferential surface of the heater (100) may be formed to have a shape surrounding the heating path (103). Heat generated from the heater (100) may be transferred to the heating path (103) on the inside of the heater (100) to heat the air. When the fan (21) rotates, air drawn into the heater (100) through the inlet (101) may flow along the heating path (103) and then be discharged from the heater (100) through the outlet (102).

[0074] For example, the heating path (103) may extend in one direction, but is not limited thereto, and the direction in which the heating path (103) extends may vary depending on the shape of the heater (100), the positions of the inlet (101) and the outlet (102), etc.

[0075] In this way, the hot air device (1) can provide hot air as the fan (21) rotates to suck / exhaust air and the heater (100) generates heat to heat the flowing air.

[0076] The hot air device (1) may include a handle (13). The handle (13) may be provided so that a user can easily hold it. The user can lift or move the hot air device (1) by holding the handle (13). For example, a switch (31, 32) to be described later may be provided on the handle (13). For example, electronic components such as a control unit (50, see FIG. 2), a motor drive (23, see FIG. 2), and a power supply unit (40, see FIG. 2) to be described later may be arranged inside the handle (13).

[0077] For example, electronic components placed inside the handle (13) can be connected to a fan motor (22), a heater (100), etc., by wires. For this purpose, the inside of the handle (13), the inside of the fan housing (11), and the inside of the duct (12) can be connected to each other.

[0078] The configuration of the hot air device (1) described above with reference to FIG. 1 is only one embodiment of the configuration of the hot air device according to the idea of ​​the present disclosure, and the idea of ​​the present disclosure is not limited thereto.

[0079] For example, in FIG. 1, an embodiment is illustrated in which a heater (100) is installed inside a duct (12) to heat air at a location very close to a main body outlet (10b), but the location of the heater (100) is not limited thereto. The heater (100) may be arranged at various locations within the main body (10) to heat the air.

[0080] FIG. 2 is a block diagram illustrating some components of a hot air device according to one embodiment of the present disclosure.

[0081] Referring to FIG. 2, a hot air device (1) according to one embodiment of the present disclosure may include a control unit (50) that controls various components of the hot air device (1).

[0082] The control unit (50) may include a processor (51) that generates a control signal regarding the operation of the hot air device (1), and a memory (52) that stores programs, applications, instructions, and / or data for the operation of the hot air device (1). The processor (51) and the memory (52) may be implemented as separate semiconductor devices or as a single semiconductor device.

[0083] Additionally, the control unit (50) may include a plurality of processors or a plurality of memories. The control unit (50) may be provided at various locations inside the hot air device (1).

[0084] The processor (51) may include an arithmetic circuit, a memory circuit, and a control circuit. The processor (51) may include one chip or multiple chips. In addition, the processor (51) may include one core or multiple cores.

[0085] Memory (52) stores various programs and data required for control, and can temporarily store temporary data generated during control.

[0086] The memory (52) may include volatile memory such as Static Random Access Memory (S-RAM) and Dynamic Random Access Memory (D-RAM), and non-volatile memory such as Read Only Memory (ROM) and Erasable Programmable Read Only Memory (EPROM). The memory (52) may include one memory element or may include a plurality of memory elements.

[0087] The processor (51) may be electrically connected to the memory (52). The processor (51) may process data and / or signals using a program provided from the memory (52), and may transmit a control signal to each component of the hot air device (1) based on the processing result. Each component of the hot air device (1) may be operated based on the control signal of the processor (51).

[0088] The hot air device (1) may include an input device (30) for receiving user input. Types of user input that may be received through the input device (30) may include turning the power of the hot air device (1) on / off, wind speed (i.e., rotation speed of the fan (21)), wind temperature (i.e., heat generation level of the heater (100)), etc.

[0089] The input device (30) may include various types of input devices such as a tact switch, a push switch, a slide switch, a toggle switch, a micro switch, or a touch switch.

[0090] The input device (30) can receive user input and output an electrical signal (voltage or current) corresponding to the user input and transmit it to the control unit (50). The control unit (50) can receive the user input based on the output signal of the input device (30).

[0091] For example, the input device (30) may include a first switch (31) and a second switch (32). The first switch (31) and the second switch (32) may be configured to obtain different types of user input.

[0092] For example, the first switch (31) can obtain user input including turning on / off the power of the hot air device (1), wind speed, etc.

[0093] For example, the second switch (32) can obtain user input including wind temperature, etc.

[0094] The hot air device (1) may include a motor drive (23) configured to apply a driving voltage to a fan motor (22). The motor drive (23) may be electrically connected to the fan motor (22).

[0095] The control unit (50) can be electrically connected to the motor drive (23). The control unit (50) can control the motor drive (23) to apply or not apply a driving voltage to the fan motor (22) based on preset conditions. The motor drive (23) can receive a target speed command or a torque command from the control unit (50) and can apply a driving voltage corresponding to the target speed command or the target torque command to the fan motor (22).

[0096] The preset condition referred to here may include a user input obtained through the first switch (31). For example, when a user input is obtained to turn on the power of the hot air device (1) and blow wind of a specific strength through the first switch (31), the control unit (50) can control the motor drive (23) so that the fan motor (22) rotates at a rotation speed corresponding to the wind of the corresponding strength. Alternatively, for example, when a user input is obtained to turn off the power of the hot air device (1) through the first switch (31), the control unit (50) can control the motor drive (23) so that the fan motor (22) stops rotating.

[0097] The heater (100) may include a power supply unit (40). The power supply unit (40) may be configured to apply voltage to the graphene scroll (200) of the heater (100). The power supply unit (40) may be configured to apply voltage to the electrodes (300) of the heater (100). The power supply unit (40) may be electrically connected to the electrodes (300) of the heater (100). Specifically, the power supply unit (40) may be electrically connected to a plurality of electrodes (300) provided in the heater (100). The power supply unit (40) may be configured to apply voltage between the plurality of electrodes (300) or not.

[0098] The control unit (50) can be electrically connected to the power supply unit (40). The control unit (50) can control the power supply unit (40) to apply or not apply voltage between the plurality of electrodes (300) based on preset conditions.

[0099] The preset condition referred to here may include a user input obtained through the second switch (32). For example, when a user input is obtained to discharge high-temperature wind through the second switch (32), the control unit (50) may control the power supply unit (40) to apply voltage between the plurality of electrodes (300) so that the heater (100) can heat the air to a temperature within a preset range. Alternatively, for example, when a user input is obtained to discharge low-temperature wind through the second switch (32), the control unit (50) may control the power supply unit (40) not to apply voltage between the plurality of electrodes (300) or to reduce the magnitude of the applied voltage.

[0100] FIG. 3 is a diagram illustrating a heater included in a hot air device according to one embodiment of the present disclosure. FIG. 4 is a cross-sectional view illustrating a graphene scroll of a heater included in a hot air device according to one embodiment of the present disclosure. FIG. 5 is a diagram illustrating a graphene sheet forming the graphene scroll of FIG. 3 and electrodes connected to the graphene sheet.

[0101] Referring to FIGS. 3 to 5, a heater (100) of a hot air device (1) according to one embodiment of the present disclosure may include a graphene scroll (200). The graphene scroll (200) may be configured to generate heat. The graphene scroll (200) may be configured to generate heat when current flows through it. The graphene scroll (200) may be configured to heat air flowing by a fan (21). The graphene scroll (200) may be configured to heat air passing through a heating passage (103).

[0102] The graphene scroll (200) may be composed of a material including graphene. The graphene scroll (200) may be formed using a graphene sheet (200s, see FIG. 5) composed of a material including graphene. As illustrated in FIG. 5, the graphene sheet (200s) may be formed in a substantially planar shape. For example, the graphene sheet (200s) may be formed in a thin sheet shape having a substantially rectangular shape. A detailed description of the structure of the graphene sheet (200s) will be described later.

[0103] Here, graphene can refer to a thin film stacked in approximately 1 to 10 layers, with carbon atoms bonded in a hexagonal lattice pattern (honeycomb structure) as the basic unit. Graphene is one of the allotropes of carbon, and can have a structure in which carbon atoms gather to form a two-dimensional plane.

[0104] When voltage is applied to graphene, current flows through the graphene, and heat may be generated due to the resistance of the graphene. Due to this characteristic, when voltage is applied to the graphene scroll (200) and current flows, the graphene scroll (200) may generate heat due to the current resistance.

[0105] Graphene has high electrical conductivity, and therefore, when voltage is applied, power consumption is low, and its heat generation efficiency is relatively high. Furthermore, graphene has high thermal conductivity, resulting in excellent heat transfer efficiency. Therefore, the graphene scroll (200) can have high air heating efficiency.

[0106] Additionally, due to the properties of graphene, the graphene scroll (200) may be capable of rapidly heating air when voltage is applied. Conversely, the graphene scroll (200) may be capable of rapidly returning to its original temperature when voltage application is cut off.

[0107] In this way, when using a graphene scroll (200) as a heat source for a heater (100), the generation of heat can be easily controlled depending on whether voltage is applied. Furthermore, even when the air is not heated, the temperature of the graphene scroll (200) can be easily lowered by cutting off power, thereby preventing damage to the heater (100) and its surroundings due to high heat.

[0108] In addition, since graphene has the characteristic of high physical strength, the graphene scroll (200) may not be easily damaged by external impact.

[0109] In addition, compared to the type heated by a current-flowing heating wire, due to the characteristics of graphene, when voltage is applied to the graphene scroll (200), current flows through the entire area of ​​the graphene scroll (200) and heat is generated, so even if a part of the graphene scroll (200) is damaged, the remaining part can generate heat by the voltage application.

[0110] In addition, since graphene has the characteristic of having a very high surface area per particle unit, it may be easier to manufacture a lightweight heater when using a graphene scroll (200).

[0111] The graphene scroll (200) may be arranged to allow fluid to pass through it. In particular, in the hot air device (1), the graphene scroll (200) may be arranged to allow air flowing through it by a fan (21). The graphene scroll (200) may form a heating passage (103). The heating passage (103) may be formed in the inner space of the graphene scroll (200).

[0112] Specifically, the graphene scroll (200) may include the aforementioned inlet (101). The inlet (101) may be formed to allow air to flow into the graphene scroll (200). The inlet (101) may be provided on one side of the graphene scroll (200).

[0113] The graphene scroll (200) may include the aforementioned outlet (102). The outlet (102) may be configured to allow air to be discharged from the graphene scroll (200). The outlet (102) may be provided on the opposite side of the graphene scroll (200) from the inlet (101).

[0114] The heating duct (103) can extend from the inlet (101) to the outlet (102).

[0115] The heating path (103) may extend in a direction corresponding to the direction in which the graphene scroll (200) extends. In addition, the length of the heating path (103) may correspond to the length of the graphene scroll (200).

[0116] The graphene scroll (200) may be configured as a planar heating element. Here, the planar heating element is not limited to a heating element having an overall planar shape, and may be interpreted to include a case where a portion of the graphene scroll (200) having a curved shape, such as that illustrated in FIG. 3, has a thin surface shape.

[0117] As the graphene scroll (200) is configured as a planar heating element in this way, the area of ​​the graphene scroll (200) in contact with air can increase, and the overall heating area / heat transfer area of ​​the graphene scroll (200) can increase. In other words, the area of ​​the graphene scroll (200) in contact with the heating path (103) can increase. As a result, the efficiency of heating air by the graphene scroll (200) can be improved.

[0118] The heating path (103) formed by the graphene scroll (200) may have a central axis (CA). The central axis (CA) of the heating path (103) may extend between the inlet (101) and the outlet (102). The central axis (CA) of the heating path (103) may be an axis that passes through the center of the heating path (103) and passes through the inlet (101) and the outlet (102), and may refer to a central axis that extends in the direction in which air flows along the heating path (103). The central axis of the heating path (103) may coincide with the central axis of the graphene scroll (200).

[0119] For example, as illustrated in FIG. 3, when the inlet (101) and the outlet (102) are arranged parallel to each other in one direction, that is, when the direction in which air flows through the inlet (101), the direction in which air flows along the heating passage (103), and the direction in which air is discharged through the outlet (102) are parallel, the heating passage (103) may have a shape extending in one direction, and the central axis (CA) of the heating passage (103) may extend in the same one direction. However, in contrast, when the inlet (101) and the outlet (102) are not arranged parallel to each other, or the heating passage (103) extending between the inlet (101) and the outlet (102) has a curved shape in at least a portion, the central axis (CA) of the heating passage (103) may also have a curved shape in at least a portion.

[0120] The graphene scroll (200) may be extended such that the distance from the central axis (CA) of the heating passage (103) increases from one end adjacent to the central axis (CA) toward the other end. Specifically, the graphene scroll (200) may include a first end (201) that is parallel to the central axis (CA) of the heating passage (103) and a second end (202) that is opposite to the first end (201), and the graphene scroll (200) may be arranged such that the distance from the central axis (CA) increases as the graphene scroll (200) extends from the first end (201) toward the second end (202). The distance from the central axis (CA) referred to here may mean the shortest distance between a point of the graphene scroll (200) located between the first end (201) and the second end (202) and the central axis (CA).

[0121] For example, the first stage (201) of the graphene scroll (200) may be parallel to the central axis (CA) of the heating passage (103). For example, the second stage (202) of the graphene scroll (200) may be parallel to the central axis (CA) of the heating passage (103).

[0122] The graphene scroll (200) may extend in a first direction (D1) from the first end (201) toward the second end (202). The graphene scroll (200) may extend such that the distance from the central axis (CA) increases as it moves toward the first direction (D1). With reference to FIG. 4, the first direction (D1) is counterclockwise, but is not limited thereto, and the first direction (D1) may also be clockwise with reference to FIG. 4.

[0123] The graphene scroll (200) can be extended so that the angle measured in the first direction (D1) with respect to the central axis (CA) increases as it moves from the first stage (201) to the second stage (202).

[0124] Here, a part of the graphene scroll (200) may be covered from the outside by another part. For example, another part that is located at a position extending more than 360 degrees in the first direction (D1) than any part of the graphene scroll (200) may be covered from the outside by the above part. The outer direction referred to here may mean a direction adjacent to the outside of the graphene scroll (200) and a position further from the central axis (CA) of the heating path (103).

[0125] For example, the graphene scroll (200) may be formed into a scroll shape formed by bending a flat graphene sheet (200s) into a curved shape. The scroll shape of the graphene scroll (200) may refer to a shape formed by winding the graphene sheet (200s) in one direction with respect to one axis. For example, the graphene scroll (200) may be formed by winding from one of the short sides of a pair of short sides toward the other short side, centered on an axis parallel to a pair of short sides of the graphene sheet (200s). Alternatively, the graphene scroll (200) may be formed by winding from one of the long sides of a pair toward the other long side, centered on an axis parallel to a pair of long sides of the graphene sheet (200s).

[0126] Alternatively, the graphene sheet (200s) may have all sides of the same length, and even in this case, the graphene scroll (200) may be made by winding around an axis parallel to one of the sides of the graphene sheet (200s) and from that side toward the opposite side.

[0127] Referring to the drawing illustrated in FIG. 4, the graphene scroll (200) may include a first portion (211). The first portion (211) of the graphene scroll (200) may extend in a first direction (D1) from one side adjacent to the central axis (CA) of the heating path (103) toward the other side. The first portion (211) of the graphene scroll (200) may extend such that the distance from the central axis (CA) increases as it moves toward the first direction (D1).

[0128] Additionally, the graphene scroll (200) may include a second portion (212). The second portion (212) of the graphene scroll (200) may extend in a first direction (D1) from the first portion (211). The second portion (212) of the graphene scroll (200) may extend in the first direction (D1) from one side of the second portion (212) adjacent to the central axis (CA) toward the other side. The second portion (212) of the graphene scroll (200) may extend such that the distance from the central axis (CA) of the heating path (103) increases as it moves toward the first direction (D1).

[0129] At this time, the second part (212) of the graphene scroll (200) can cover the first part (211) from the outside.

[0130] Furthermore, the graphene scroll (200) may further include a third portion (213) extending from the second portion (212) in the first direction (D1) and covering the second portion (212) from the outside, a fourth portion (214) extending from the third portion (213) in the first direction (D1) and covering the third portion (213) from the outside, a fifth portion (215) extending from the fourth portion (214) in the first direction (D1) and covering the fourth portion (214) from the outside, a sixth portion (216) extending from the fifth portion (215) in the first direction (D1) and covering the fifth portion (215) from the outside, etc. The third part (213), fourth part (214), fifth part (215), sixth part (216), etc. of the graphene scroll (200) may be extended so that the distance from the central axis (CA) of the heating path (103) increases as they move toward the first direction (D1).

[0131] By this structure, the graphene scroll (200) can have the shape of a scroll in which the graphene sheet (200s) is formed in a shape in which it is wound around one axis.

[0132] Although FIG. 4 illustrates an embodiment in which the graphene scroll (200) extends approximately six times in a 360-degree direction in the first direction (D1), the invention is not limited thereto. For example, unlike FIG. 4 , the graphene scroll (200) may include only the first portion (211) and the second portion (212). Alternatively, unlike FIG. 4 , the graphene scroll (200) may further include a portion extending from the sixth portion (216) in the first direction (D1).

[0133] In addition, in FIG. 4, an example is described in which each part of the graphene scroll (200), such as the first part (211) and the second part (212), extends approximately 360 degrees around the central axis (CA), but this is only one example in which each part of the graphene scroll (200) is distinguished for convenience of explanation, and the idea of ​​the present disclosure is not limited by the angle at which each part of the graphene scroll (200) extends.

[0134] The graphene scroll (200) may have a shape in which a portion thereof extends so that one side thereof does not contact another portion thereof that covers the portion above. In other words, a portion of the graphene scroll (200) and the other portion thereof that covers the same may be spaced apart in a direction away from the central axis (CA). In other words, a space may be formed between a portion of the graphene scroll (200) and the other portion thereof that covers the same, and air may flow through this space. That is, at least a portion of the heating passage (103) may be formed between a portion of the graphene scroll (200) and the other portion thereof that covers the portion of the graphene scroll (200).

[0135] As described based on the diagram in FIG. 4, the second part (212) of the graphene scroll (200) can be arranged at a position spaced apart from the first part (211) in a direction away from the central axis (CA). At this time, at least a portion of the heating path (103) can be formed in the space between the first part (211) and the second part (212). In addition, at least a portion of the heating path (103) can be formed in the inner space of the first part (211) (i.e., the space surrounded by the first part (211) of the graphene scroll (200).

[0136] Likewise, the third part (213) of the graphene scroll (200) may be disposed at a position spaced apart from the second part (212) in a direction away from the central axis (CA), and at least a portion of the heating passage (103) may be formed in a space between the second part (212) and the third part (213). In addition, the fourth part (214) of the graphene scroll (200) may be disposed at a position spaced apart from the third part (213) in a direction away from the central axis (CA), and at least a portion of the heating passage (103) may be formed in a space between the third part (213) and the fourth part (214). In addition, the fifth part (215) of the graphene scroll (200) may be arranged at a position spaced apart from the fourth part (214) in a direction away from the central axis (CA), and at least a portion of the heating passage (103) may be formed in a space between the fourth part (214) and the fifth part (215). In addition, the sixth part (216) of the graphene scroll (200) may be arranged at a position spaced apart from the fifth part (215) in a direction away from the central axis (CA), and at least a portion of the heating passage (103) may be formed in a space between the fifth part (215) and the sixth part (216).

[0137] At this time, parts of the heating path (103) formed between each part of the graphene scroll (200) may be connected to each other. In other words, a part of the heating passage (103) formed in the inner space of the first part (211) of the graphene scroll (200), a part of the heating passage (103) formed between the first part (211) and the second part (212) of the graphene scroll (200), a part of the heating passage (103) formed between the second part (212) and the third part (213) of the graphene scroll (200), a part of the heating passage (103) formed between the third part (213) and the fourth part (214) of the graphene scroll (200), a part of the heating passage (103) formed between the fourth part (214) and the fifth part (215) of the graphene scroll (200), and a part of the heating passage (103) formed between the fifth part (215) and the sixth part (216) of the graphene scroll (200) can be connected to each other.

[0138] By means of the structure of the graphene scroll (200) as described above, the area of ​​contact between the graphene scroll (200) and the heating path (103) can be increased, and the heat generating area of ​​the graphene scroll (200) can be increased relative to the volume occupied by the graphene scroll (200). As a result, the graphene scroll (200) can heat air more efficiently.

[0139] Graphene has high durability and flexibility due to its characteristics, and thus can be advantageous in manufacturing a graphene scroll (200) having a structure as described above using a flat graphene sheet (200s).

[0140] The graphene scroll (200) is arranged to heat air that flows along the heating path (103) toward the outlet (102) and is introduced through the inlet (101). Therefore, the longer the length of the heating path (103) extending between the inlet (101) and the outlet (102), the easier it is to secure time for heating the air. Accordingly, as illustrated in FIG. 3, the graphene scroll (200) may have a shape of a bar that extends long between the inlet (101) and the outlet (102). For example, as illustrated in FIG. 3, the graphene scroll (200) may have a shape of a bar that extends long in one direction between the inlet (101) and the outlet (102). In this respect, the graphene scroll (200) may also be referred to as a graphene bar.

[0141] As described above, the graphene scroll (200) may be configured to generate heat based on the voltage applied. The heater (100) may include a power supply unit (40) configured to apply voltage to the graphene scroll (200). For example, the power supply unit (40) may be configured to apply AC power, but is not limited thereto, and the power supply unit (40) may also be configured to apply DC power. The power supply unit (40) may be configured to apply voltage to the graphene scroll (200) under control of a control unit (50, see FIG. 2). The power supply unit (40) may also be referred to as a 'heater drive (40)'.

[0142] For example, the power supply unit (40) may be connected to an external power source and may receive power from the external power source. Alternatively, for example, the power supply unit (40) may be connected to a battery that charges power and may receive power from the battery.

[0143] For example, the power supply unit (40) may be configured to include electronic components for applying voltage to the graphene scroll (200) and a printed circuit board on which these components are mounted.

[0144] The heater (100) may include a plurality of electrodes (300). The plurality of electrodes (300) may be arranged to apply voltage to the graphene scroll (200). Each of the plurality of electrodes (300) may be arranged to contact the graphene scroll (200) and apply voltage to the graphene scroll (200).

[0145] The plurality of electrodes (300) may each be electrically connected to a power supply unit (40). For example, the plurality of electrodes (300) may each be electrically connected to a power supply unit (40) by wires. The plurality of electrodes (300) may each be connected to a power supply unit (40), and the power supply unit (40) may generate a potential difference between the plurality of electrodes (300) or remove the potential difference. The graphene scroll (200) may receive power from the power supply unit (40) through the plurality of electrodes (300).

[0146] When a voltage is applied between a plurality of electrodes (300), an electric field may be generated in a region of the graphene scroll (200) located between the plurality of electrodes (300). As a result, a current may flow in the region of the graphene scroll (200) located between the plurality of electrodes (300), and heat may be generated in the region due to resistance. Accordingly, the graphene scroll (200) may be configured to generate heat based on the voltage applied.

[0147] Referring to FIGS. 3 and 5, the plurality of electrodes (300) may include a pair of opposing electrodes (310, 320). The pair of opposing electrodes (310, 320) may be disposed to be spaced apart from each other. For example, one opposing electrode (310) of the pair of opposing electrodes (310, 320) may be disposed adjacent to the first end (201) of the graphene scroll (200), and the other opposing electrode (320) may be disposed adjacent to the second end (202) of the graphene scroll (200). In FIG. 3, the pair of opposing electrodes (310, 320) is illustrated as being disposed at each of the opposite ends of the graphene scroll (200), but alternatively, the pair of opposing electrodes (310, 320) may be disposed at a position spaced apart from each of the opposite ends of the graphene scroll (200).

[0148] A pair of opposing electrodes (310, 320) can each be electrically connected to a power supply unit (40). A circuit including a pair of opposing electrodes (310, 320) and a power supply unit (40) can be configured in various ways so that whether or not a voltage is applied between the pair of opposing electrodes (310, 320) can vary depending on the operation of the power supply unit (40).

[0149] Each of the plurality of electrodes (300) may extend in a direction parallel to one another. As each of the plurality of electrodes (300) extends in a direction parallel to one another, the amount of heat generated in the region between the plurality of electrodes (300) of the graphene scroll (200) may be maintained at an overall constant level.

[0150] For example, as illustrated in FIGS. 3 and 5, each of the plurality of electrodes (300) may extend in a direction parallel to the direction in which the heating passage (103) extends. Specifically, each of the plurality of electrodes (300) may extend in a direction parallel to the direction in which the heating passage (103) extends from the inlet (101) toward the outlet (102). Each of the plurality of electrodes (300) may extend in a direction approximately parallel to the central axis (CA) of the heating passage (103).

[0151] For example, as illustrated in FIG. 3, a first side electrode (310) of a pair of opposing electrodes (310, 320) may extend along a first end (201) of a graphene scroll (200). A first side electrode (310) of a pair of opposing electrodes (310, 320) may be in contact with the first end (201) of the graphene scroll (200) and may be spaced apart from the second end (202).

[0152] For example, as illustrated in FIG. 3, the second side electrode (320) of a pair of opposing electrodes (310, 320) may extend along the second end (202) of the graphene scroll (200). The second side electrode (320) of a pair of opposing electrodes (310, 320) may be in contact with the second end (202) of the graphene scroll (200) and may be spaced apart from the first end (201).

[0153] For example, as illustrated in FIG. 5, when the graphene sheet (200s) has a rectangular shape, each of the pair of counter electrodes (310, 320) may extend in a direction parallel to the short side of the graphene sheet (200s). In this case, the central axis (CA) of the heating passage (103) may be parallel to the short side of the graphene sheet (200s). However, differently, depending on the shape of the graphene sheet (200s), the central axis (CA) of the heating passage (103) may be parallel to the long side of the graphene sheet (200s), and in this case, each of the pair of counter electrodes (310, 320) may extend in a direction parallel to the long side of the graphene sheet (200s). Alternatively, the graphene sheet (200s) may have an approximately square shape.

[0154] Referring to FIG. 5, the structure of the graphene sheet (200s) forming the graphene scroll (200) will be described in more detail.

[0155] FIG. 5A is an enlarged view of each layer by cutting a portion where the first side electrode (310) of a pair of counter electrodes (310, 320) and the first side electrode (310) of the graphene sheet (200s) are in contact. FIG. 5B is an enlarged view of each layer by cutting a portion where the second side electrode (320) of a pair of counter electrodes (310, 320) and the second side electrode (320) of the graphene sheet (200s) are in contact. FIG. 5C is an enlarged view of each layer by cutting a portion of the graphene sheet (200s) located between the pair of counter electrodes (310, 320).

[0156] The structures of A and B in Fig. 5 can correspond to each other.

[0157] Referring to A, B, and C of FIG. 5, the graphene sheet (200s) may include a graphene layer (200a) in which graphene is arranged in at least one layer, and a base layer (200b) that supports the graphene layer (200a). That is, the graphene scroll (200) may include a graphene layer (200a) and a base layer (200b).

[0158] The graphene layer (200a) may be configured to generate heat by resistance when voltage is applied and current flows. At this time, the thickness of one layer of graphene is approximately 0.2 nanometers, and for example, the thickness of the graphene layer (200a) provided on the graphene sheet (200s) may be 10 micrometers or less. As such, since the graphene layer (200a) itself is very thin, the graphene sheet (200s) may require a base layer (200b) to support the graphene layer (200a). For example, the base layer (200b) may have a thickness of approximately 50 micrometers. The base layer (200b) may be formed in the shape of a thin film to which the graphene layer (200b) is attached and which supports the graphene layer (200b).

[0159] The graphene layer (200a) may be bonded to one surface of the base layer (200b). For example, the graphene layer (200a) and the base layer (200b) may be bonded to each other by intermolecular forces (such as van der Waals forces).

[0160] Since the graphene layer (200a) is a part that generates heat when voltage is applied, the base layer (200b) may be composed of a material with high heat resistance. For example, the base layer (200b) may be composed of a material including polyamide. However, the present invention is not limited thereto, and the base layer (200b) may be composed of various materials, such as a resin material including polyethylene terephthalate (PET).

[0161] Due to the highly flexible nature of graphene, the graphene layer (200a) can be configured to have high flexibility. In addition, the base layer (200b) can be configured to have high flexibility. For example, the base layer (200b) can be formed as a film composed of a material including the aforementioned polyimide, polyethylene terephthalate, etc. As a result, it can be easy to bend the graphene layer (200a) and the base layer (200b).

[0162] Referring to A and B of FIG. 5, a plurality of electrodes (300) may be respectively bonded to graphene sheets (200s). Specifically, the plurality of electrodes (300) may each be attached to a graphene layer (200a). The plurality of electrodes (300) may each be attached to a side of the graphene layer (200a) opposite to the side bonded to the base layer (200b). Accordingly, each of the plurality of electrodes (300) may be electrically connected to the graphene layer (200a), and when a voltage is applied between the plurality of electrodes (300), current may flow in the graphene layer (200a).

[0163] Referring to A and B of FIG. 5, each of the plurality of electrodes (300) can be bonded to the graphene sheet (200s) by an adhesive layer (ad). Each of the plurality of electrodes (300) can be attached to the graphene layer (200a) by the adhesive layer (ad). The adhesive layer (ad) can be provided between the graphene layer (200a) and the electrode (300). The adhesive layer (ad) is provided to have high electrical conductivity, so that each of the plurality of electrodes (300) can be electrically connected to the graphene layer (200a).

[0164] For example, the adhesive layer (ad) may include various types of conductive adhesives, such as silver paste.

[0165] For example, the adhesive layer (ad) may have a thickness of approximately 10 micrometers or less.

[0166] However, this is not limited thereto, and each of the plurality of electrodes (300) may be bonded to the graphene layer (200a) in various ways.

[0167] For example, referring to A and B of FIG. 5, each of the plurality of electrodes (300) may include a contact electrode (300a). The contact electrode (300a) may be in contact with the graphene sheet (200s) and may be electrically connected to the graphene sheet (200s). Specifically, the contact electrode (300a) may be attached to one side of the graphene layer (200a) opposite to the side that is bonded to the base layer (200b). The contact electrode (300a) may be electrically connected to the power supply unit (40). The graphene layer (200a) may receive voltage through the plurality of contact electrodes (300a).

[0168] The contact electrode (300a) may include a conductive material. For example, the contact electrode (300a) may include various types of conductive metal materials, such as copper.

[0169] For example, the contact electrode (300a) may have a thickness of approximately 60 micrometers.

[0170] For example, the aforementioned adhesive layer (ad) may be provided between the contact electrode (300a) and the graphene layer (200a). The contact electrode (300a) may be attached to the graphene layer (200a) by the adhesive layer (ad). The contact electrode (300a) may be electrically connected to the graphene layer (200a) by the adhesive layer (ad).

[0171] For example, referring to A and B of FIG. 5, each of the plurality of electrodes (300) may include a pad electrode (300b). The pad electrode (300b) may be electrically connected to a contact electrode (300a). The pad electrode (300b) may be bonded to the contact electrode (300a). The pad electrode (300b) may be attached to the other surface of the contact electrode (300a) opposite to the surface facing the graphene layer (200a). The pad electrode (300b) may be electrically connected to a power supply unit (40).

[0172] The pad electrode (300b) may include a conductive material. For example, the pad electrode (300b) may be formed by soldering various types of conductive metals, such as solder.

[0173] For example, the contact electrode (300a) and the pad electrode (300b) may be joined to each other by a conductive adhesive such as silver paste. However, the present invention is not limited thereto, and the contact electrode (300a) and the pad electrode (300b) may be joined to each other by various methods.

[0174] For example, the wires connecting each of the plurality of electrodes (300) to the power supply unit (40) may be connected to the pad electrode (300b) and / or the contact electrode (300a). As a result, the plurality of electrodes (300) may be electrically connected to the power supply unit (40), and the graphene layer (200a) may receive voltage through the plurality of electrodes (300).

[0175] Referring to A, B, and C of FIG. 5, the graphene sheet (200s) may further include an encapsulation layer (en). That is, the graphene scroll (200) may include an encapsulation layer (en). The encapsulation layer (en) may be provided to protect the graphene layer (200a) from the outside. The encapsulation layer (en) may be arranged on one side of the graphene layer (200a) opposite to the base layer (200b). The encapsulation layer (en) may be formed through an encapsulation process that wraps one side of the graphene layer (200a) opposite to the base layer (200b). The encapsulation layer (en) may form one outer surface of the graphene scroll (200).

[0176] Referring to A and B of FIG. 5, the encapsulation layer (en) can cover each of the plurality of electrodes (300). Specifically, the encapsulation layer (en) can cover the pad electrode (300b) of each of the plurality of electrodes (300).

[0177] Referring to FIG. C of FIG. 5, the encapsulation layer (en) can cover the graphene layer (200a).

[0178] In other words, the encapsulation layer (en) entirely covers one side of the graphene layer (200a) and forms one side of the graphene sheet (200s), and a plurality of electrodes (300) can be placed between a part of the encapsulation layer (en) and a part of the graphene layer (200a).

[0179] The encapsulation layer (en) may be composed of a highly flexible material. The encapsulation layer (en) may be composed of a highly moisture-resistant or heat-resistant material. For example, the encapsulation layer (en) may include various materials, such as epoxy or a resin material such as polyethylene terephthalate (PET).

[0180] For example, the encapsulation layer(en) can be formed into a flexible, thin film.

[0181] For example, the encapsulation layer(en) may have a thickness of approximately 50 micrometers.

[0182] For example, when a graphene sheet (200s) is rolled to become a graphene scroll (200), the encapsulation layer (en) may be arranged to face the outer direction of the graphene scroll (200) (i.e., the direction away from the central axis (CA) of the heating passage (103)) and the base layer (200b) may be arranged to face the inner direction of the graphene scroll (200) (i.e., the direction closer to the central axis (CA) of the heating passage (103)).

[0183] In contrast, when the graphene sheet (200s) is rolled to become a graphene scroll (200), the base layer (200b) may be arranged to face the outer direction of the graphene scroll (200) (i.e., away from the central axis (CA) of the heating passage (103)) and the encapsulation layer (en) may be arranged to face the inner direction of the graphene scroll (200) (i.e., closer to the central axis (CA) of the heating passage (103)).

[0184] The structure of each layer constituting the graphene sheet (200s) and the plurality of electrodes (300) is not limited to that described above. In addition, the thickness, material, etc. of each layer constituting the graphene sheet (200s), the plurality of electrodes (300), etc. are not limited to that described above.

[0185] FIG. 6 is an enlarged view of a portion of a graphene scroll of a hot air device according to one embodiment of the present disclosure.

[0186] Referring to FIG. 6, a heater (100) according to one embodiment of the present disclosure may further include a spacer (250). The spacer (250) may be provided to maintain a separation space formed between a portion of the graphene scroll (200) and another portion that covers the portion from the outside. The spacer (250) may be provided to support a portion of the graphene scroll (200) or another portion that covers the portion from the outside. The spacer (250) may be disposed within the heating passage (103).

[0187] Graphene has the characteristic of flexibility, which makes it advantageous for manufacturing curved shapes such as graphene scrolls (200). However, due to this flexibility, a structure that maintains the shape may be required. The spacer (250) can prevent deformation of the internal space of the graphene scroll (200) due to the flexibility of graphene.

[0188] For example, the spacer (250) may be provided to protrude outwardly from a portion of the graphene scroll (200) (i.e., away from the central axis (CA) of the heating path (103)) and support another portion that covers an upper portion of the graphene scroll (200) in the outward direction.

[0189] For example, as illustrated in FIG. 6, the spacer (250) may be formed integrally with the graphene scroll (200). Specifically, the spacer (250) may be formed by bending a portion of the graphene scroll (200). Here, the portion of the bent graphene scroll (200) may include a portion of the graphene layer (200a) and a portion of the base layer (200b). Alternatively, for example, the spacer (250) may be formed as a separate configuration from the graphene scroll (200) and then coupled to the graphene scroll (200).

[0190] For example, as illustrated in FIG. 6, a plurality of spacers (250) may be provided. A plurality of spacers (250) may be arranged spaced apart from each other within the heating path (103).

[0191] The graphene scroll (200) may further include a support layer (220). The support layer (220) may form one outer surface of the graphene scroll (200). Specifically, the support layer (220) may be provided on one surface of the graphene scroll (200) supported by a spacer (250). The spacer (250) protrudes from a portion of the graphene scroll (200), and the support layer (220) is provided on another portion that covers an upper portion of the graphene scroll (200), so that the spacer (250) may support another portion of the graphene scroll (200) by coming into contact with the support layer (220).

[0192] For example, the support layer (220) may be attached to a surface opposite to the graphene layer (200a) of the base layer (200b). That is, for example, the support layer (220) may be provided on a surface opposite to the encapsulation layer (en) of the graphene scroll (200). For example, the support layer (220) may form an inner surface of the graphene scroll (200) (i.e., a surface facing the central axis (CA) of the heating path (103).

[0193] The support layer (220) can be formed in the shape of a thin film.

[0194] For example, the support layer (220) may be composed of various materials, such as a resin material including polyethylene terephthalate (PET) material.

[0195] In this way, as the spacer (250) comes into contact with the support layer (220), other parts of the graphene scroll (200) can be supported more stably.

[0196] Referring to one spacer (250a) among the plurality of spacers (250) illustrated in FIG. 6, the spacer (250a) may be provided to form a separation space between the first part (211) and the second part (212) of the graphene scroll (200). For example, the spacer (250a) may protrude from the first part (211) of the graphene scroll (200) toward the second part (212). In other words, the spacer (250a) may protrude in a direction away from the central axis (CA) of the heating passage (103) from the first part (211) of the graphene scroll (200). In this way, the spacer (250a) can support the second part (212) of the graphene scroll (200) and maintain a separation space between the first part (211) and the second part (212) of the graphene scroll (200).

[0197] A portion (220a) of the support layer (220) may be provided on one side of the second portion (212) of the graphene scroll (200) facing the first portion (211). At this time, the spacer (250a) may protrude from the first portion (211) and come into contact with the support layer (220) to support the second portion (212).

[0198] Each spacer (250) provided in the graphene scroll (200) may have characteristics corresponding to the spacer (250a) described above.

[0199] Unlike as shown in FIG. 6, the graphene scroll (200) may not include a separate support layer (220), in which case the spacer (250) may be in direct contact with the base layer (200b) of another part of the graphene scroll (200).

[0200] Unlike the one illustrated in FIG. 6, the spacer (250) may be formed as a separate configuration that is disposed on one side of the graphene scroll (200) and separated from the graphene scroll (200). For example, the spacer (250) may be disposed on one side of an encapsulation layer (en) of a portion of the graphene scroll (200) and may be formed in a shape that protrudes toward another portion that covers the portion. The spacer (250) formed on one side of the encapsulation layer (en) in this way may include a material with high heat resistance. For example, the spacer (250) may be formed of various materials such as polyethylene terephthalate (PET).

[0201] FIG. 7 is an enlarged view of a portion of a graphene scroll of a hot air device according to one embodiment of the present disclosure.

[0202] Referring to FIG. 7, the heater (100) according to one embodiment of the present disclosure may further include a spacer (250-1). Similar to the spacer (250) of FIG. 6, the spacer (250-1) of FIG. 7 may be provided to form a separation space between a portion of the graphene scroll (200) and another portion covering the portion from the outside. The spacer (250-1) may be provided to support a portion of the graphene scroll (200) or another portion covering the portion from the outside. The spacer (250-1) may be disposed within the heating passage (103).

[0203] For example, the spacer (250-1) may be configured to protrude inwardly from a portion of the graphene scroll (200) (i.e., in a direction closer to the central axis (CA) of the heating path (103)) and support another portion whose outer side is covered by the upper portion of the graphene scroll (200).

[0204] For example, the graphene scroll (200) may include a support layer (220-1). The support layer (220-1) of FIG. 7 has characteristics corresponding to the support layer (220-1) of FIG. 6, and thus a detailed description thereof will be omitted.

[0205] At this time, for example, the spacer (250-1) may protrude from the support layer (220-1). Specifically, the spacer (250-1) may protrude from a portion of the support layer (220-1) provided on a portion of the graphene scroll (200) and may come into contact with another portion of the graphene scroll (200).

[0206] For example, as illustrated in FIG. 7, the spacer (250-1) may be formed integrally with the graphene scroll (200). Specifically, the spacer (250-1) may be formed by bending a portion of the graphene scroll (200). As illustrated in FIG. 7, the spacer (250-1) may be formed integrally with the support layer (220-1) of the graphene scroll (200). The spacer (250-1) may be formed by bending a portion of the support layer (220-1).

[0207] In this way, the spacer (250-1) can be manufactured by bending the support layer (220-1) which is provided separately from the configuration of the graphene layer (200a), the base layer (200b), etc., so that it is possible to select a material for the support layer (220-1) from various materials that are easy to bend rather than the graphene layer (200a) and the base layer (200b) whose materials are somewhat specific, so that the spacer (250-1) can be manufactured more efficiently.

[0208] Unlike as shown in FIG. 7, the spacer (250-1) may include a portion of the graphene layer (200a), a portion of the base layer (200b), etc.

[0209] Alternatively, the spacer (250-1) may be formed as a separate configuration from the graphene scroll (200) and may be coupled to the graphene scroll (200).

[0210] For example, as illustrated in FIG. 7, a plurality of spacers (250-1) may be provided. A plurality of spacers (250-1) may be arranged spaced apart from each other within the heating path (103).

[0211] Referring to one spacer (250a-1) among the plurality of spacers (250-1) illustrated in FIG. 7, the spacer (250a-1) may be provided to form a separation space between the first part (211) and the second part (212) of the graphene scroll (200). For example, the spacer (250a-1) may protrude from a part (220a-1) of the support layer (220-1) provided on the second part (212) of the graphene scroll (200) toward the first part (211). In other words, the spacer (250a-1) may protrude from a part (220a-1) of the support layer (220-1) provided on the second part (212) of the graphene scroll (200) in a direction closer to the central axis (CA) of the heating path (103). In this way, the spacer (250a-1) can support the first part (211) of the graphene scroll (200) and maintain a separation space between the first part (211) and the second part (212) of the graphene scroll (200).

[0212] Each spacer (250-1) provided in the graphene scroll (200) may have characteristics corresponding to the spacer (250a-1) described above.

[0213] Unlike the one illustrated in FIG. 7, the graphene scroll (200) may not include a separate support layer (220-1), and in this case, the spacer (250-1) may be formed by directly bending a portion of the graphene layer (200a), a portion of the base layer (200b), or the like, rather than the support layer (220-1). Alternatively, the spacer (250-1) may be formed as a separate configuration and attached to one side of the base layer (200b) (i.e., one side of the base layer (200b) opposite to the graphene layer (200a) and one side facing inward).

[0214] By the configuration according to the embodiment of FIG. 6 or the embodiment of FIG. 7, the shape of the graphene scroll (200) can be prevented from being deformed, and the heating path (103) formed between each part of the graphene scroll (200) can be efficiently maintained, thereby increasing the area of ​​the graphene scroll (200) in contact with the heating path (103), and improving the heating efficiency of air.

[0215] Unlike what has been described with reference to FIGS. 6 and 7, the graphene scroll (200) may not be provided with a separate physical structure for preventing the shape of the graphene scroll (200) from being deformed, such as the spacer (250) (or 250-1) described above. For example, if the material of the adhesive layer (ad) or the encapsulation layer (en) included in the graphene scroll (200) is made of a material that hardens after a certain period of time (or after a certain process is performed) after coating, the graphene scroll (200) may be able to maintain its shape by itself after manufacturing is completed.

[0216] FIG. 8 is a diagram illustrating a heater included in a hot air device according to one embodiment of the present disclosure. FIG. 9 is a diagram illustrating a graphene sheet forming the graphene scroll of FIG. 8 and electrodes connected to the graphene sheet.

[0217] In describing one embodiment of the present disclosure with reference to FIGS. 8 and 9, the same components as those in the embodiments of FIGS. 1 to 7 may be given the same drawing reference numerals and descriptions thereof may be omitted.

[0218] Referring to FIGS. 8 and 9, a heater (100) included in a hot air device (1) according to one embodiment of the present disclosure may include a plurality of electrodes (300-1) configured to apply voltage to a graphene scroll (200). The plurality of electrodes (300-1) may be in contact with the graphene scroll (200) and electrically connected to the graphene scroll (200). The plurality of electrodes (300-1) may be electrically connected to a power supply unit (40). The plurality of electrodes (300-1) may be arranged to be spaced apart from each other. The power supply unit (40) may be configured to apply voltage between the plurality of electrodes (300-1).

[0219] Some of the plurality of electrodes (300-1) may be positioned adjacent to the inlet (101). Others of the plurality of electrodes (300-1) may be positioned adjacent to the outlet (102).

[0220] In detail, the plurality of electrodes (300-1) may include a pair of opposing electrodes (310-1, 320-1). The pair of opposing electrodes (310-1, 320-1) may be disposed to face each other. A first electrode (310-1) of the pair of opposing electrodes (310-1, 320-1) may be disposed adjacent to an outlet (102), and a second electrode (320-1) of the pair of opposing electrodes (310-1, 320-1) opposite the first electrode (310-1) may be disposed adjacent to an inlet (101). The first electrode (310-1) may be disposed to be spaced apart from the inlet (101), and the second electrode (320-1) may be disposed to be spaced apart from the outlet (102).

[0221] The direction in which each of the plurality of electrodes (300-1) extends may be different from the direction in which the central axis (CA) of the heating passage (103) extends. The plurality of electrodes (300-1) may be arranged parallel to each other in the direction in which the inlet (101) and the outlet (102) face each other. The plurality of electrodes (300-1) may be arranged parallel to each other in the direction in which the central axis (CA) of the heating passage (103) extends.

[0222] Each of the plurality of electrodes (300-1) may extend in a direction parallel to the direction extending from one end adjacent to the central axis (CA) of the heating passage (103) of the graphene scroll (200) toward the other end. In other words, each of the plurality of electrodes (300-1) may extend in a direction parallel to the direction extending from the first end (201) toward the second end (202) of the graphene scroll (200). That is, each of the plurality of electrodes (300-1) may extend in a first direction (D1) from one end adjacent to the central axis (CA) of the heating passage (103) among its two ends toward the other end, and may extend such that the distance from the central axis (CA) increases as it moves toward the first direction (D1). Each of the plurality of electrodes (300-1) may be formed in an approximately scroll shape.

[0223] For example, as illustrated in FIG. 8, the first side electrode (310-1) of a pair of opposing electrodes (310-1, 320-1) may be provided at one end of the outlet (102) side of the graphene scroll (200). The second side electrode (320-1) of a pair of opposing electrodes (310-1, 320-1) may be provided at the other end of the inlet (101) side of the graphene scroll (200).

[0224] For example, when the graphene sheet (200s) has a rectangular shape as illustrated in FIG. 9, each of the pair of opposing electrodes (310-1, 320-1) may extend in a direction parallel to the long side of the graphene sheet (200s). In this case, the central axis (CA) of the heating path (103) may be parallel to the short side of the graphene sheet (200s).

[0225] As illustrated in FIG. 9, each of a pair of counter electrodes (310, 320) extends in a direction parallel to the long side of the graphene sheet (200s), and the pair of counter electrodes (310, 320) may face each other in the direction of the short side of the graphene sheet (200s). Furthermore, the pair of counter electrodes (310-1, 320-1) may be provided at both ends of the graphene sheet (200s). Here, when the pair of counter electrodes (310-1, 320-1) extend in a direction parallel to the long side of the graphene sheet (200s), the distance between the pair of counter electrodes (310-1, 320-1) may be shorter than when the pair of counter electrodes (310-1, 320-1) extends in a direction parallel to the short side of the graphene sheet (200s). As the distance between a pair of opposing electrodes (310-1, 320-1) becomes shorter, the intensity of the current flowing in the graphene scroll (200) may increase, which may result in an increase in the amount of heat generated.

[0226] However, in contrast to this, depending on the shape of the graphene sheet (200s), the central axis (CA) of the heating path (103) may be parallel to the short side of the graphene sheet (200s), and in this case, each of the pair of opposing electrodes (310-1, 320-1) may extend in a direction parallel to the short side of the graphene sheet (200s). Alternatively, in contrast to this, the graphene sheet (200s) may have an approximately square shape.

[0227] FIG. 10 is a drawing illustrating a heater included in a hot air device according to one embodiment of the present disclosure, which includes a plurality of graphene scrolls. FIG. 11 is a cross-sectional view illustrating a plurality of graphene scrolls of the heater of FIG. 10 cut away.

[0228] In describing one embodiment of the present disclosure with reference to FIGS. 10 and 11, the same components as those in the embodiments of FIGS. 1 to 5 may be given the same drawing reference numerals and descriptions thereof may be omitted.

[0229] Referring to FIGS. 10 and 11, a heater (100) included in a hot air device (1) according to one embodiment of the present disclosure may include a first graphene scroll (1200) and a second graphene scroll (2200). The first graphene scroll (1200) and the second graphene scroll (2200) may each be configured to generate heat when current flows. The first graphene scroll (1200) and the second graphene scroll (2200) may each be configured to heat air flowing by a fan (21). The first graphene scroll (1200) and the second graphene scroll (2200) may each be configured to heat air within a heating passage (103).

[0230] The first graphene scroll (1200) and the second graphene scroll (2200) may each form a heating path (103) extending between the inlet (101) and the outlet (102). Each of the first graphene scroll (1200) and the second graphene scroll (2200) may have a shape corresponding to the graphene scroll (200) according to the embodiments of FIGS. 1 to 5.

[0231] The first graphene scroll (1200) may be extended such that the distance from the central axis of the heating path (103) increases as it moves from the first end (1201) adjacent to the central axis of the heating path (103) toward the second end (1202) opposite thereto. As illustrated in FIG. 11, the first graphene scroll (1200) may be extended in the first direction (D1) from the first end (1201) toward the second end (1202).

[0232] The second graphene scroll (2200) may be extended such that the distance from the central axis of the heating path (103) increases as it moves from the first end (2201) adjacent to the central axis of the heating path (103) toward the second end (1202) opposite thereto. As illustrated in FIG. 11, the second graphene scroll (2200) may be extended in the first direction (D1) from the first end (2201) toward the second end (2202).

[0233] With reference to Fig. 11, the first direction (D1) is counterclockwise, but is not limited thereto, and the first direction (D1) may be clockwise with reference to Fig. 11.

[0234] The first graphene scroll (1200) and the second graphene scroll (2200) may be spaced apart from each other. A heating path (103) may be formed between the first graphene scroll (1200) and the second graphene scroll (2200). That is, at least a portion of the heating path (103) may be formed in the space between the first graphene scroll (1200) and the second graphene scroll (2200).

[0235] In addition, the first graphene scroll (1200) and the second graphene scroll (2200) may be arranged to overlap each other. At least a portion of the first graphene scroll (1200) may cover at least a portion of the second graphene scroll (2200) in an outer direction. At least a portion of the second graphene scroll (2200) may cover at least a portion of the first graphene scroll (1200) in an outer direction. The outer direction referred to here means a direction toward the outside of the heater (100) and a direction away from the central axis of the heating passage (103). In this way, a part of the first graphene scroll (1200) is arranged to cover a part of the second graphene scroll (2200), and a part of the second graphene scroll (2200) is arranged to cover a part of the first graphene scroll (1200), so that the first graphene scroll (1200) and the second graphene scroll (2200) can be arranged to overlap each other at positions spaced apart from each other. In other words, the first graphene scroll (1200) and the second graphene scroll (2200) can be arranged to surround each other.

[0236] In this way, the heater (100) according to one embodiment of the present disclosure can increase the heat generation area per volume by including a plurality of graphene scrolls (1200, 2200) that are spaced apart from each other and overlap each other.

[0237] The heater (100) may include a plurality of first electrodes (1300) configured to apply voltage to a first graphene scroll (1200). Each of the plurality of first electrodes (1300) may be electrically connected to a power supply unit (40). The power supply unit (40) may be configured to apply voltage between the plurality of first electrodes (1300). When voltage is applied between the plurality of first electrodes (1300), the first graphene scroll (1200) may generate heat. The plurality of first electrodes (1300) may have characteristics corresponding to the plurality of electrodes (300) according to the embodiments of FIGS. 1 to 5.

[0238] Each of the plurality of first electrodes (1300) may extend in a direction parallel to one another. For example, as illustrated in FIG. 10, each of the plurality of electrodes (1300) may extend in a direction parallel to the direction in which the heating passage (103) extends. Specifically, each of the plurality of electrodes (1300) may extend in a direction parallel to the direction in which the heating passage (103) extends from the inlet (101) toward the outlet (102). Each of the plurality of electrodes (1300) may extend in a direction substantially parallel to the central axis of the heating passage (103).

[0239] For example, as illustrated in FIG. 10, the plurality of first electrodes (1300) may include a pair of first opposing electrodes (1310, 1320).

[0240] For example, as illustrated in FIG. 10, one electrode (1310) of a pair of first opposing electrodes (1310, 1320) may extend along a first end (1201) of a first graphene scroll (1200). One electrode (1310) of a pair of first opposing electrodes (1310, 1320) may be in contact with the first end (1201) of the first graphene scroll (1200) and may be spaced apart from the second end (1202).

[0241] For example, as illustrated in FIG. 10, one of the pair of first counter electrodes (1310, 1320) may extend along the second end (1202) of the first graphene scroll (1200). One of the pair of first counter electrodes (1310, 1320) may contact the second end (1202) of the first graphene scroll (1200) and may be spaced apart from the first end (1201).

[0242] The heater (100) may include a plurality of second electrodes (2200) configured to apply voltage to the second graphene scrolls (2200). Each of the plurality of second electrodes (2300) may be electrically connected to a power supply unit (40). The power supply unit (40) may be configured to apply voltage between the plurality of second electrodes (2300). When voltage is applied between the plurality of second electrodes (2300), the second graphene scrolls (2200) may generate heat. The plurality of second electrodes (2300) may have characteristics corresponding to the plurality of electrodes (300) according to the embodiments of FIGS. 1 to 5.

[0243] Each of the plurality of second electrodes (2300) may extend in a direction parallel to one another. For example, as illustrated in FIG. 10, each of the plurality of electrodes (2300) may extend in a direction parallel to the direction in which the heating passage (103) extends. Specifically, each of the plurality of electrodes (2300) may extend in a direction parallel to the direction in which the heating passage (103) extends from the inlet (101) toward the outlet (102). Each of the plurality of electrodes (2300) may extend in a direction substantially parallel to the central axis of the heating passage (103).

[0244] For example, as illustrated in FIG. 10, the plurality of second electrodes (2300) may include a pair of second opposing electrodes (2310, 2320).

[0245] For example, as illustrated in FIG. 10, one electrode (2310) of a pair of second counter electrodes (2310, 2320) may extend along a first end (2201) of a second graphene scroll (2200). One electrode (2310) of a pair of second counter electrodes (2310, 2320) may be in contact with the first end (2201) of the second graphene scroll (2200) and may be spaced apart from the second end (2202).

[0246] For example, as illustrated in FIG. 10, one of the pair of second counter electrodes (2310, 2320) may extend along the second end (2202) of the second graphene scroll (2200). One of the pair of second counter electrodes (2310, 2320) may contact the second end (2202) of the second graphene scroll (2200) and may be spaced apart from the first end (2201).

[0247] For example, a plurality of first electrodes (1300) and a plurality of second electrodes (2300) may extend in a direction parallel to each other.

[0248] A plurality of first electrodes (1300) and a plurality of second electrodes (2300) can be arranged spaced apart from each other.

[0249] The power supply unit (40) can be configured to apply voltage only between a plurality of first electrodes (1300), or to apply voltage only between a plurality of second electrodes (2300), or to apply voltage between a plurality of first electrodes (1300) and simultaneously apply voltage between a plurality of second electrodes (2300).

[0250] For example, a plurality of first electrodes (1300) and a plurality of second electrodes (2300) can be connected to one power supply unit (40), and the control unit (50) can selectively control the on / off of a switch of a circuit including the plurality of first electrodes (1300), the plurality of second electrodes (2300), and the power supply unit (40), so that voltage is applied only between the plurality of first electrodes (1300), or voltage is applied only between the plurality of second electrodes (2300), or voltage is applied between the plurality of first electrodes (1300) and voltage is applied between the plurality of second electrodes (2300).

[0251] Alternatively, the power supply unit (40) may be composed of a plurality of separate modules. For example, the power supply unit (40) may be composed of a power supply unit that applies voltage between a plurality of first electrodes (1300) and a power supply unit that applies voltage between a plurality of second electrodes (2300), and the control unit (50) may be arranged to individually control each power supply unit.

[0252] With this configuration, heat may be generated only in the first graphene scroll (1200), only in the second graphene scroll (2200), or simultaneously in each of the first graphene scroll (1200) and the second graphene scroll (2200). Compared to heat being generated only in the first graphene scroll (1200) or heat being generated only in the second graphene scroll (2200), when heat is generated simultaneously in each of the first graphene scroll (1200) and the second graphene scroll (2200), the amount of heat generated may increase.

[0253] Accordingly, at least one power supply unit (40) can apply voltage only between the plurality of first electrodes (1300) or only between the plurality of second electrodes (2300) based on the first condition. In other words, the control unit (50) can control the at least one power supply unit (40) so that voltage is applied only between the plurality of first electrodes (1300) or so that voltage is applied only between the plurality of second electrodes (2300) based on the first condition. In other words, the control unit (50) can control the at least one power supply unit (40) so that heat is generated only in the first graphene scroll (1200) or so that heat is generated only in the second graphene scroll (2200) based on the first condition.

[0254] Additionally, at least one power supply unit (40) may apply a voltage between the plurality of first electrodes (1300) and apply a voltage between the plurality of second electrodes (2300) based on the second condition. In other words, the control unit (50) may control the at least one power supply unit (40) so that a voltage is applied between the plurality of first electrodes (1300) and a voltage is applied between the plurality of second electrodes (2300) based on the second condition. In other words, the control unit (50) may control the at least one power supply unit (40) so that heat is generated in each of the first graphene scroll (1200) and the second graphene scroll (2200) based on the second condition.

[0255] Here, when the condition for heating the air to a first temperature is referred to as the first condition, the condition for heating the air to a second temperature higher than the first temperature can be referred to as the second condition.

[0256] For example, the first condition and the second condition may each be satisfied based on a user input obtained through the input device (30). That is, the control unit (50) may control at least one power supply unit (40) to apply voltage only between the plurality of first electrodes (1300) or to apply voltage only between the plurality of second electrodes (2300) based on a user input obtained through the input device (30) to heat air to a first temperature. In addition, the control unit (50) may control at least one power supply unit (40) to apply voltage between the plurality of first electrodes (1300) and to apply voltage between the plurality of second electrodes (2300) based on a user input obtained through the input device (30) to heat air to a second temperature higher than the first temperature.

[0257] With this configuration, the heater (100) can heat the air at several temperatures.

[0258] FIG. 12 is a diagram illustrating graphene sheets each forming a plurality of graphene scrolls included in a hot air device according to one embodiment of the present disclosure, and electrodes each connected to the graphene sheets.

[0259] Referring to FIG. 12, a first graphene sheet (1200s) in a flattened state and a pair of first electrodes (1310, 1320) coupled thereto, and a second graphene sheet (2200s) in a flattened state and a pair of second electrodes (2310, 2320) coupled thereto, provided in a heater (100) of a hot air device (1) according to one embodiment of the present disclosure, are compared and explained.

[0260] The structure and characteristics of the first graphene sheet (1200s) in the embodiment illustrated in FIG. 12 correspond to the structure and characteristics of the graphene sheet (200s) according to the embodiment illustrated in FIG. 5. The structure and characteristics of the second graphene sheet (2200s) in the embodiment illustrated in FIG. 12 correspond to the structure and characteristics of the graphene sheet (200s) according to the embodiment illustrated in FIG. 5.

[0261] As illustrated in FIG. 12, the distance (d1) between a pair of first electrodes (1310, 1320) bonded to a first graphene sheet (1200s) and the distance (d2) between a pair of second electrodes (2310, 2320) bonded to a second graphene sheet (2200s) may be substantially equal to each other.

[0262] In this case, if the heat generation density of the first graphene scroll (1200) and the heat generation density of the second graphene scroll (2200) are almost the same, the heat generation amount of the first graphene scroll (1200) when voltage is applied between a pair of first electrodes (1310, 1320) and the heat generation amount of the second graphene scroll (2200) when voltage is applied between a pair of second electrodes (2310, 2320) may be almost the same.

[0263] Accordingly, in this case, at least one power supply unit (40) may apply voltage only between the plurality of first electrodes (1300) or apply voltage only between the plurality of second electrodes (2300) based on the first condition. In other words, the control unit (50) may control the at least one power supply unit (40) to generate heat only in one of the first graphene scroll (1200) or the second graphene scroll (2200) based on the first condition. In addition, the at least one power supply unit (40) may apply voltage between the plurality of first electrodes (1300) and apply voltage between the plurality of second electrodes (2300) based on the second condition. In other words, the control unit (50) may control the at least one power supply unit (40) to generate heat in each of the first graphene scroll (1200) and the second graphene scroll (2200) based on the second condition.

[0264] Here, the first condition may be a condition for heating the air to a first temperature, and the second condition may be a condition for heating the air to a second temperature higher than the first temperature.

[0265] In contrast, if the heat generation density of the first graphene scroll (1200) and the heat generation density of the second graphene scroll (2200) are different from each other, the heat generation amount of the first graphene scroll (1200) when voltage is applied between a pair of first electrodes (1310, 1320) and the heat generation amount of the second graphene scroll (2200) when voltage is applied between a pair of second electrodes (2310, 2320) may be different from each other.

[0266] For example, assuming that the heat generation density of the first graphene scroll (1200) is lower than the heat generation density of the second graphene scroll (2200), when voltage is applied between a pair of first electrodes (1310, 1320), the heat generation amount of the first graphene scroll (1200) may be lower than the heat generation amount of the second graphene scroll (2200) when voltage is applied between a pair of second electrodes (2310, 2320).

[0267] In this case, at least one power supply unit (40) can apply voltage between the plurality of first electrodes (1300) based on the first condition. In other words, the control unit (50) can control the at least one power supply unit (40) to generate heat only in the first graphene scroll (1200) based on the first condition. In addition, at least one power supply unit (40) can apply voltage between the plurality of second electrodes (2300) based on the second condition. In other words, the control unit (50) can control the at least one power supply unit (40) to generate heat only in the second graphene scroll (2200) based on the second condition. In addition, at least one power supply unit (40) can apply voltage between the plurality of first electrodes (1300) and apply voltage between the plurality of second electrodes (2300) based on the third condition. In other words, the control unit (50) can control at least one power supply unit (40) to generate heat in each of the first graphene scroll (1200) and the second graphene scroll (2200) based on the third condition.

[0268] Here, the first condition may be a condition for heating the air to a first temperature, the second condition may be a condition for heating the air to a second temperature higher than the first temperature, and the third condition may be a condition for heating the air to a third temperature higher than the second temperature.

[0269] With this configuration, the heater (100) can heat the air at several temperatures.

[0270] FIG. 13 is a diagram illustrating graphene sheets each forming a plurality of graphene scrolls included in a hot air device according to one embodiment of the present disclosure, and electrodes each connected to the graphene sheets.

[0271] Referring to FIG. 13, a first graphene sheet (1200s) in a flattened state and a pair of first electrodes (1310, 1320) coupled thereto, and a second graphene sheet (2200s) in a flattened state and a pair of second electrodes (2310, 2320) coupled thereto, provided in a heater (100) of a hot air device (1) according to one embodiment of the present disclosure, are compared and explained.

[0272] The structure and characteristics of the first graphene sheet (1200s) in the embodiment illustrated in FIG. 13 correspond to the structure and characteristics of the graphene sheet (200s) according to the embodiment illustrated in FIG. 5. The structure and characteristics of the second graphene sheet (2200s) in the embodiment illustrated in FIG. 13 correspond to the structure and characteristics of the graphene sheet (200s) according to the embodiment illustrated in FIG. 5.

[0273] As illustrated in FIG. 13, unlike the embodiment of FIG. 12, the distance (d1) between a pair of first electrodes (1310, 1320) bonded to a first graphene sheet (1200s) and the distance (d2) between a pair of second electrodes (2310, 2320) bonded to a second graphene sheet (2200s) may be different from each other.

[0274] In this case, even if the heat generation density of the first graphene scroll (1200) and the heat generation density of the second graphene scroll (2200) are almost the same, the heat generation amount of the first graphene scroll (1200) when voltage is applied between a pair of first electrodes (1310, 1320) and the heat generation amount of the second graphene scroll (2200) when voltage is applied between a pair of second electrodes (2310, 2320) may be different from each other.

[0275] For example, assuming that the distance (d2) between a pair of second electrodes (2310, 2320) bonded to a second graphene sheet (2200s) is shorter than the distance (d1) between a pair of first electrodes (1310, 1320) bonded to a first graphene sheet (1200s), and that the heat generation density of the first graphene scroll (1200) and the heat generation density of the second graphene scroll (2200) are almost the same, the heat generation area of ​​the first graphene scroll (1200) may be larger than the heat generation area of ​​the second graphene scroll (2200). Therefore, when voltage is applied between a pair of first electrodes (1310, 1320), the heat generation of the first graphene scroll (1200) may be greater than the heat generation of the second graphene scroll (2200) when voltage is applied between a pair of second electrodes (2310, 2320).

[0276] In this case, the control unit (50) can control at least one power supply unit (40) to apply voltage between the plurality of second electrodes (2300) based on the first condition. In other words, the control unit (50) can control at least one power supply unit (40) to generate heat only in the second graphene scroll (2200) based on the first condition. In addition, the at least one power supply unit (40) can apply voltage between the plurality of first electrodes (1300) based on the second condition. In other words, the control unit (50) can control at least one power supply unit (40) to generate heat only in the first graphene scroll (1200) based on the second condition. In addition, the at least one power supply unit (40) can apply voltage between the plurality of first electrodes (1300) and apply voltage between the plurality of second electrodes (2300) based on the third condition. In other words, the control unit (50) can control at least one power supply unit (40) to generate heat in each of the first graphene scroll (1200) and the second graphene scroll (2200) based on the third condition.

[0277] Here, the first condition may be a condition for heating the air to a first temperature, the second condition may be a condition for heating the air to a second temperature higher than the first temperature, and the third condition may be a condition for heating the air to a third temperature higher than the second temperature.

[0278] For example, the first condition, second condition, third condition, etc. above can be satisfied based on user input for heating air to a specific temperature being obtained through the input device (30).

[0279] With this configuration, the heater (100) can heat the air at several temperatures.

[0280] FIG. 14 is an enlarged view of a portion of a plurality of graphene scrolls included in a hot air device according to one embodiment of the present disclosure.

[0281] Referring to FIG. 14, a heater (100) according to one embodiment of the present disclosure may further include a spacer (1250, 2250). The spacer (1250, 2250) may be provided between a first graphene scroll (1200) and a second graphene scroll (2200). The spacer (1250, 2250) may be provided to maintain a separation space between the first graphene scroll (1200) and the second graphene scroll (2250). The spacer (1250, 2250) may be disposed within a heating passage (103).

[0282] In detail, the hot air device (1) may include a first spacer (1250) protruding from a first graphene scroll (1200). The first spacer (1250) may be provided to maintain a separation space formed between a portion of the first graphene scroll (1200) and a portion of a second graphene scroll (2200) that covers a portion of the first graphene scroll (1200) from the outside. The first spacer (1250) may protrude from a portion of the first graphene scroll (1200) in the outside direction and may come into contact with a portion of the second graphene scroll (2200) that covers a portion of the first graphene scroll (1200) from the outside direction.

[0283] For example, the first spacer (1250) may be formed integrally with the first graphene scroll (1200). Specifically, the first spacer (1250) may be formed by bending a portion of the first graphene scroll (1200). Alternatively, for example, the first spacer (1250) may be formed as a separate configuration from the first graphene scroll (1200) and then coupled to the first graphene scroll (1200).

[0284] For example, the first spacer (1250) may be provided in multiples. The multiple first spacers (1250) may be arranged spaced apart from each other within the heating path (103).

[0285] The heater (100) may include a second spacer (2250) protruding from the second graphene scroll (2200). The second spacer (2250) may be provided to maintain a separation space formed between a portion of the second graphene scroll (2200) and a portion of the first graphene scroll (1200) that covers a portion of the second graphene scroll (2200) from the outside. The second spacer (2250) may protrude from a portion of the second graphene scroll (2200) from the outside and may come into contact with a portion of the first graphene scroll (1200) that covers a portion of the second graphene scroll (2200) from the outside.

[0286] For example, the second spacer (2250) may be formed integrally with the second graphene scroll (2200). Specifically, the second spacer (2250) may be formed by bending a portion of the second graphene scroll (2200). Alternatively, for example, the second spacer (2250) may be formed as a separate configuration from the second graphene scroll (2200) and then coupled to the second graphene scroll (2200).

[0287] For example, a plurality of second spacers (2250) may be provided. A plurality of second spacers (2250) may be arranged spaced apart from each other within the heating path (103).

[0288] For example, the first graphene scroll (1200) may further include a first support layer (1220). The first support layer (1220) may form one outer surface of the first graphene scroll (1200). Specifically, the first support layer (1220) may be provided on one surface of the first graphene scroll (1200) supported by the second spacer (2250). The second spacer (2250) protrudes from a portion of the second graphene scroll (2200), and the first support layer (1220) is provided on a portion of the first graphene scroll (1200) that covers an upper portion of the second graphene scroll (2200), so that the second spacer (2250) may support a portion of the first graphene scroll (1200) by coming into contact with the first support layer (1220).

[0289] However, unlike as illustrated in FIG. 14, the first graphene scroll (1200) may not include a separate first support layer (1220), in which case the second spacer (2250) may directly contact a portion of the base layer (see the embodiment of FIG. 5) of the first graphene scroll (1200).

[0290] For example, the second graphene scroll (2200) may further include a second support layer (2220). The second support layer (2220) may form one outer surface of the second graphene scroll (2200). Specifically, the second support layer (2220) may be provided on one surface of the second graphene scroll (2200) supported by the first spacer (1250). The first spacer (1250) protrudes from a portion of the first graphene scroll (1200), and the second support layer (2220) is provided on a portion of the second graphene scroll (2200) that covers an upper portion of the first graphene scroll (1200), so that the first spacer (1250) may support a portion of the second graphene scroll (2200) by coming into contact with the second support layer (2220).

[0291] However, unlike as illustrated in FIG. 14, the second graphene scroll (2200) may not include a separate second support layer (2220), in which case the first spacer (1250) may directly contact a portion of the base layer (see the embodiment of FIG. 5) of the second graphene scroll (2200).

[0292] FIG. 15 is an enlarged view of a portion of a plurality of graphene scrolls included in a hot air device according to one embodiment of the present disclosure.

[0293] Referring to FIG. 15, the heater (100) according to one embodiment of the present disclosure may further include a spacer (1250-1, 2250-1). Similar to the spacer (1250, 2250) of FIG. 14, the spacer (1250-1, 2250-1) may be provided between the first graphene scroll (1200-1) and the second graphene scroll (2200-1). The spacer (1250-1, 2250-1) may be provided to maintain a separation space between the first graphene scroll (1200-1) and the second graphene scroll (2250-1). The spacer (1250-1, 2250-1) may be disposed within the heating passage (103).

[0294] In detail, the hot air device (1) may include a first spacer (1250-1) protruding from a first graphene scroll (1200-1). The first spacer (1250-1) may be provided to maintain a gap formed between a portion of the first graphene scroll (1200-1) and a portion of a second graphene scroll (2200-1) whose outer side is covered by a portion of the first graphene scroll (1200-1). The first spacer (1250-1) may protrude inwardly from a portion of the first graphene scroll (1200-1) and may come into contact with a portion of the second graphene scroll (2200) whose outer side is covered by a portion of the first graphene scroll (1200-1).

[0295] For example, the first graphene scroll (1200-1) may include a first support layer (1220-1). At this time, for example, the first spacer (1250-1) may protrude from the first support layer (1220-1). Specifically, the first spacer (1250-1) may protrude from a portion of the first support layer (1220-1) provided on a portion of the first graphene scroll (1200) and may come into contact with a portion of the second graphene scroll (2200).

[0296] For example, the first spacer (1250-1) may be formed integrally with the first graphene scroll (1200-1). Specifically, the first spacer (1250-1) may be formed by bending a portion of the first graphene scroll (1200-1). As illustrated in FIG. 15, the first spacer (1250-1) may be formed integrally with the first support layer (1220-1) of the first graphene scroll (1200-1). The first spacer (1250-1) may be formed by bending a portion of the first support layer (1220-1).

[0297] Alternatively, for example, the first spacer (1250-1) may include a portion of the graphene layer (see the embodiment of FIG. 5) of the first graphene scroll (1200-1), a portion of the base layer (see the embodiment of FIG. 5), etc.

[0298] Alternatively, for example, the first spacer (1250-1) may be formed as a separate configuration from the first graphene scroll (1200-1) and coupled to the first graphene scroll (1200-1).

[0299] For example, the first spacer (1250-1) may be provided in multiples. The multiple first spacers (1250-1) may be arranged spaced apart from each other within the heating path (103).

[0300] The hot air device (1) may include a second spacer (2250-1) protruding from the second graphene scroll (2200-1). The second spacer (2250-1) may be provided to maintain a gap formed between a portion of the second graphene scroll (2200-1) and a portion of the first graphene scroll (1200-1) whose outer side is covered by a portion of the second graphene scroll (2200-1). The second spacer (2250-1) may protrude inwardly from a portion of the second graphene scroll (2200-1) and may come into contact with a portion of the first graphene scroll (1200) whose outer side is covered by a portion of the second graphene scroll (2200).

[0301] For example, the second graphene scroll (2200-1) may include a second support layer (2220-1). At this time, for example, the second spacer (2250-1) may protrude from the second support layer (2220-1). Specifically, the second spacer (2250-1) may protrude from a portion of the second support layer (2220-1) provided on a portion of the second graphene scroll (2200) and may come into contact with a portion of the first graphene scroll (1200).

[0302] For example, the second spacer (2250-1) may be formed integrally with the second graphene scroll (2200-1). Specifically, the second spacer (2250-1) may be formed by bending a portion of the second graphene scroll (2200-1). As illustrated in FIG. 15, the second spacer (2250-1) may be formed integrally with the second support layer (2220-1) of the second graphene scroll (2200-1). The second spacer (2250-1) may be formed by bending a portion of the second support layer (2220-1).

[0303] Alternatively, for example, the second spacer (2250-1) may include a portion of the graphene layer (see the embodiment of FIG. 5) of the second graphene scroll (2200-1), a portion of the base layer (see the embodiment of FIG. 5), etc.

[0304] Alternatively, for example, the second spacer (2250-1) may be formed as a separate configuration from the second graphene scroll (2200-1) and coupled to the second graphene scroll (2200-1).

[0305] For example, a plurality of second spacers (2250-1) may be provided. A plurality of second spacers (2250-1) may be arranged spaced apart from each other within the heating path (103).

[0306] Unlike what has been described with reference to FIGS. 14 and 15, the first graphene scroll (1200) and the second graphene scroll (2200) may not have a separate physical structure to prevent the shape of the first graphene scroll (1200) and the second graphene scroll (2200) from being deformed, such as the first spacer (1250) (or 1250-1) and the second spacer (2250) (or 2250-1) described above. For example, if the material of the adhesive layer (see the embodiment of FIG. 5) or the encapsulation layer (see the embodiment of FIG. 5) included in the first graphene scroll (1200) and the second graphene scroll (2200) is made of a material that hardens after a certain period of time (or after a certain process is performed) after coating, each of the first graphene scroll (1200) and the second graphene scroll (2200) may be able to maintain its shape by itself after manufacturing is completed.

[0307] FIG. 16 is a drawing illustrating a heater included in a hot air device according to one embodiment of the present disclosure, which heater includes a plurality of graphene scrolls.

[0308] In describing one embodiment of the present disclosure with reference to FIG. 16, the same configuration as the embodiments of FIGS. 10 to 15 may be given the same drawing reference numerals and descriptions thereof may be omitted.

[0309] Referring to FIG. 16, a heater (100) included in a hot air device (1) according to one embodiment of the present disclosure may include a plurality of first electrodes (1300-1) arranged to apply voltage to a first graphene scroll (1200), and a plurality of second electrodes (2300-1) arranged to apply voltage to a second graphene scroll (2200).

[0310] A plurality of first electrodes (1300-1) may be in contact with the first graphene scroll (1200) and may be electrically connected to the first graphene scroll (1200). A power supply unit (40) may be provided to apply voltage between the plurality of first electrodes (1300-1). When voltage is applied between the plurality of first electrodes (1300-1), the first graphene scroll (1200) may generate heat.

[0311] Some of the plurality of first electrodes (1300-1) may be positioned adjacent to the inlet (101). Others of the plurality of first electrodes (1300-1) may be positioned adjacent to the outlet (102). The plurality of first electrodes (1300-1) may be positioned spaced apart from each other.

[0312] In detail, the plurality of first electrodes (1300-1) may include a pair of first opposing electrodes (1310-1, 1320-1). The pair of first opposing electrodes (1310-1, 1320-1) may be arranged to face each other. One electrode (1310-1) of the pair of first opposing electrodes (1310-1, 1320-1) may be arranged adjacent to the outlet (102), and the other electrode (1320-1) of the pair of first opposing electrodes (1310-1, 1320-1) may be arranged adjacent to the inlet (101).

[0313] The direction in which each of the plurality of first electrodes (1300-1) extends may be different from the direction in which the central axis of the heating passage (103) extends. The plurality of first electrodes (1300-1) may be arranged parallel to each other in a direction in which the inlet (101) and the outlet (102) face each other. The plurality of first electrodes (1300-1) may be arranged parallel to each other in a direction in which the central axis of the heating passage (103) extends.

[0314] Each of the plurality of first electrodes (1300-1) may extend in a direction parallel to the direction extending from the first end (1201) adjacent to the central axis of the heating path (103) of the first graphene scroll (1200) toward the second end (1202) opposite thereto. That is, each of the plurality of first electrodes (1300-1) may extend such that the distance from the central axis of the heating path (103) increases as it moves from the first end (1201) toward the second end (1202). Each of the plurality of first electrodes (1300-1) may be formed in an approximately scroll shape.

[0315] For example, as illustrated in FIG. 16, one electrode (1310-1) of a pair of first opposing electrodes (1310-1, 1320-1) may be provided at one end of the outlet (102) side of the first graphene scroll (1200). The other electrode (1320-1) of a pair of first opposing electrodes (1310-1, 1320-1) may be provided at the other end of the inlet (101) side of the first graphene scroll (1200).

[0316] A plurality of second electrodes (2300-1) may be in contact with the second graphene scroll (2200) and may be electrically connected to the second graphene scroll (2200). A power supply unit (40) may be provided to apply voltage between the plurality of second electrodes (2300-1). When voltage is applied between the plurality of second electrodes (2300-1), the second graphene scroll (2200-1) may generate heat.

[0317] Some of the plurality of second electrodes (2300-1) may be positioned adjacent to the inlet (101). Others of the plurality of second electrodes (2300-1) may be positioned adjacent to the outlet (102). The plurality of second electrodes (2300-1) may be positioned spaced apart from each other.

[0318] In detail, the plurality of second electrodes (2300-1) may include a pair of second opposing electrodes (2310-1, 2320-1). The pair of second opposing electrodes (2310-1, 2320-1) may be arranged to face each other. One electrode (2310-1) of the pair of second opposing electrodes (2310-1, 2320-1) may be arranged adjacent to the outlet (102), and the other electrode (2310-1) of the pair of second opposing electrodes (2310-1, 2320-1) may be arranged adjacent to the inlet (101).

[0319] The direction in which each of the plurality of second electrodes (2300-1) extends may be different from the direction in which the central axis of the heating passage (103) extends. The plurality of second electrodes (2300-1) may be arranged parallel to each other in the direction in which the inlet (101) and the outlet (102) face each other. The plurality of second electrodes (2300-1) may be arranged parallel to each other in the direction in which the central axis of the heating passage (103) extends.

[0320] Each of the plurality of second electrodes (2300-1) may extend in a direction parallel to the direction extending from the first end (2201) adjacent to the central axis of the heating path (103) of the second graphene scroll (2200) toward the second end (2202) opposite thereto. That is, each of the plurality of second electrodes (2300-1) may extend such that the distance from the central axis of the heating path (103) increases as it moves from the first end (2201) toward the second end (2202). Each of the plurality of second electrodes (2300-1) may be formed in an approximately scroll shape.

[0321] For example, as illustrated in FIG. 16, one electrode (2310-1) of a pair of second opposing electrodes (2310-1, 2320-1) may be provided at one end of the outlet (102) side of the second graphene scroll (2200). The other electrode (2320-1) of a pair of second opposing electrodes (2310-1, 2320-1) may be provided at the other end of the inlet (101) side of the second graphene scroll (2200).

[0322] Similar to what has been described with reference to FIGS. 10 to 13, the power supply unit (40) may apply voltage only between the plurality of first electrodes (1300-1), may apply voltage only between the plurality of second electrodes (2300-1), or may apply voltage between the plurality of first electrodes (1300-1) and also apply voltage between the plurality of second electrodes (2300-1). In other words, the control unit (50) may control the power supply unit (40) so that heat is generated only in the first graphene scroll (1200), may control the power supply unit (40) so that heat is generated only in the second graphene scroll (2200), or may control the power supply unit (40) so that heat is generated simultaneously in each of the first graphene scroll (1200) and the second graphene scroll (2200). At this time, the conditions for applying voltage to the first graphene scroll (1200) to generate heat or applying voltage to the second graphene scroll (2200) to generate heat can be based on a user input corresponding to, for example, the temperature to which the air is to be heated, as described above, and a detailed description thereof is omitted.

[0323] In addition, the temperature at which the air can be heated may vary depending on the difference in the distance between the pair of first counter electrodes (1310-1, 1320-1) and the distance between the pair of second counter electrodes (2310-1, 2320-1), the difference in the heat generation density of the first graphene scroll (1200) and the second graphene scroll (2200), etc., as described above with reference to FIGS. 10 to 13, and a detailed description thereof will be omitted.

[0324] FIG. 17 is an enlarged cross-sectional view of a portion of a hot air device according to one embodiment of the present disclosure.

[0325] Referring to FIG. 17, a heater (100-2) of a hot air device (1) according to one embodiment of the present disclosure may include an inlet (101-2) through which air flows into the heater (100-2), and an outlet (102-2) through which air is discharged from the heater (100-2). A heating path (103-2) through which air is heated may be formed between the inlet (101-2) and the outlet (102-2). The air may flow along the heating path (103-2).

[0326] The heater (100-2) may include at least one graphene scroll (200-2). The heating path (103-2) may be formed by at least one graphene scroll (200-2). The at least one graphene scroll (200-2) may be configured to heat air flowing along the heating path (103-2). The at least one graphene scroll (200-2) may be configured to generate heat based on the application of voltage.

[0327] As illustrated in FIGS. 3 to 9, the graphene scroll (200-2) may be a single graphene scroll composed of a single graphene sheet. Alternatively, as illustrated in FIGS. 10 to 16, the graphene scroll (200-2) may be composed of a plurality of graphene sheets and may include a plurality of graphene scrolls arranged to overlap each other.

[0328] As illustrated in FIG. 17, the width (r2) of the outlet (102-2) of the heater (100-2) may be smaller than the width (r1) of the inlet (101-2). In other words, the cross-sectional area of ​​the outlet (102-2) may be smaller than the cross-sectional area of ​​the inlet (101-2).

[0329] Accordingly, the cross-sectional area of ​​one side adjacent to the outlet (102-2) of the heating path (103-2) may be smaller than the cross-sectional area of ​​the other side adjacent to the inlet (101-2) of the heating path (103-2). As illustrated in Fig. 25, the heating path (103-2) may be formed so that its width becomes narrower from the inlet (101-2) toward the outlet (102-2).

[0330] As shown in Fig. 17, the width of the heating path (103-2) may decrease at a constant rate from the inlet (101-2) toward the outlet (102-2), but is not limited thereto.

[0331] In other words, the graphene scroll (200-2) can be formed so that the cross-sectional area of ​​the heating path (103-2) on the side adjacent to the outlet (102-2) is smaller than the cross-sectional area of ​​the heating path (103-2) on the side adjacent to the inlet (101-2).

[0332] The width of the heating path (103-2), the width (r1) of the inlet (101-2), and the width (r2) of the outlet (102-2) mentioned here mean the width measured in the direction perpendicular to the central axis (CA) of the heating path (103-2).

[0333] In addition, the cross-sectional area of ​​the heating path (103-2), the cross-sectional area of ​​the inlet (101-2), and the cross-sectional area of ​​the outlet (102-2) mentioned here mean the area of ​​the cross-section cut by a plane perpendicular to the central axis (CA) of the heating path (103-2).

[0334] By this configuration, the velocity of the air introduced through the outlet (102-2) can be greater than the velocity of the air introduced through the inlet (101-2), and thus the hot air device (1) can provide wind at a faster speed.

[0335] FIG. 18 is a schematic diagram illustrating a water purification device according to one embodiment of the present disclosure.

[0336] Referring to FIG. 18, a water purifying device (2) according to one embodiment of the present disclosure may include a water purifying body (filtering body) (10B) and a dispenser (500) that provides liquid to the outside of the water purifying body (10B).

[0337] For example, the water purifier body (10B) may be placed at the bottom of the kitchen worktop (3). For example, the water purifier body (10B) may be placed inside the kitchen worktop (3).

[0338] For example, the dispenser (500) may be placed on the upper part of the kitchen worktop (3). According to one embodiment, the dispenser (500) may be rotatably provided on the upper part of the kitchen worktop (3).

[0339] For example, a kitchen worktop (3) may be provided with an installation member (4) for installing a dispenser (500). The installation member (4) may be formed by opening at least a portion of the kitchen worktop (3). For example, the installation member (4) may be formed by opening the upper portion of the kitchen worktop (3). The dispenser (500) may be rotatably installed on the installation member (4). The installation member (4) may have various structures that enable the dispenser (500) to be installed on the kitchen worktop (3).

[0340] For example, a kitchen worktop (3) may include a sink. The sink may include a sink and a kitchen countertop.

[0341] The purifier body (10B) may be provided to filter raw water to produce purified water. The purifier body (10B) may be provided to produce purified water and deliver it to the dispenser (500).

[0342] Specifically, the water purifier main body (10B) can be connected to an external pipe (82) that is connected to an external water source. The water purifier main body (10B) can be connected to an external water source through the external pipe (82) and can receive raw water, such as tap water, from the external water source through the external pipe (82). The water purifier main body (10B) can filter the raw water supplied through the external pipe (82) to produce purified water.

[0343] The water purifier body (10B) may include at least one filter (F). The filter (F) may be provided to filter raw water to produce purified water. The filter (F) may be provided to separate impurities contained in the raw water to produce purified water.

[0344] For example, the filter (F) may include a pre-carbon filter that adsorbs volatile substances such as chlorine and chlorine byproducts from raw water, a membrane filter that filters out very small contaminants through reverse osmosis, and a post-carbon filter that affects the taste of the discharged purified water. At this time, the filter (F) may be connected in the order of the pre-carbon filter, the membrane filter, and the post-carbon filter, and the raw water flowing into the filter (F) may be filtered while passing through the pre-carbon filter, the membrane filter, and the post-carbon filter in that order.

[0345] In addition, the filter (F) may include various types of filters. In addition, multiple filters (F) may be arranged in an order different from the order described above.

[0346] The dispenser (500) may be configured to discharge liquid received from the purifier body (10B). For example, the dispenser (500) may provide purified water. The dispenser (500) may be configured to receive purified water generated from the purifier body (10B) and discharge it to the outside. The dispenser (500) may be configured to discharge purified water that has passed through the filter (F) to the outside. The dispenser (500) may be positioned downstream of the filter (F) in the flow path.

[0347] The dispenser (500) can be connected to the purifier body (10B). The dispenser (500) can be connected to the purifier body (10B) and receive purified water from the purifier body (10B).

[0348] The water purification device (2) may include a connecting pipe (81) connecting the water purification main body (10B) and the dispenser (500). One end of the connecting pipe (81) may be connected to the water purification main body (10B), and the other end may be connected to the dispenser (500). The dispenser (500) may be connected to the water purification main body (10B) through the connecting pipe (81). A path may be provided inside the connecting pipe (81) for the water purification from the water purification main body (10B) to flow. The water purification generated in the water purification main body (10B) may flow to the dispenser (500) through the connecting pipe (81).

[0349] For example, the dispenser (500) may be connected to a connecting pipe (81) through an installation member (4) of a kitchen worktop (3). The dispenser (500) may be provided to be movable relative to the kitchen worktop (3) and / or the water purifier body (10B).

[0350] The water purification device (2) may include a water purification path (90, see FIG. 20). The water purification path (90) may include a path through which raw water is filtered to produce water purification. The water purification path (90) may include a path through which water purification flows.

[0351] For example, a portion of the purified water passage (90) may be provided inside the purified water main body (10B). For example, a portion of the purified water passage (90) may be provided inside the connecting pipe (81). For example, a portion of the purified water passage (90) may be provided inside the dispenser (500).

[0352] The purified water flowing along the purification flow path (90) can be discharged to the outside through the dispenser (500).

[0353] The configuration of the water purification device (2) described above with reference to FIG. 18 is merely an example of the configuration of the water purification device according to the concept of the present disclosure. The concept of the present disclosure is not limited thereto, and the water purification device (2) may include various configurations for providing purified water.

[0354] In addition, unlike as shown in Fig. 18, for example, the water purifier (2) may be used without being installed on a kitchen worktop (3). For example, the water purifier (2) may be an independent device in which a dispenser (500) and a water purifier body (10B) are mounted in a single water purifier case.

[0355] FIG. 19 is a diagram illustrating a dispenser and a heater of a water purification device according to one embodiment of the present disclosure. FIG. 20 is a cross-sectional view illustrating a dispenser and a heater of a water purification device according to one embodiment of the present disclosure. FIG. 21 is a block diagram illustrating some components of a water purification device according to one embodiment of the present disclosure.

[0356] Referring to FIGS. 19 to 21, the dispenser (500) of the water purification device (2) according to one embodiment of the present disclosure may include a dispenser body (510) that forms the exterior of the dispenser (500). Various components of the dispenser (500) may be arranged inside the dispenser body (510).

[0357] For example, as illustrated in FIG. 18, one side of the dispenser body (510) may be mounted on a kitchen worktop (3). For example, the dispenser body (510) may be rotatably mounted on the kitchen worktop (3).

[0358] For example, the dispenser body (510) may include a neck (511) extending approximately vertically and a head (512) extending approximately horizontally from the upper portion of the neck (511). The lower portion of the neck (511) may be mounted on a kitchen work surface (3). The neck (511) may have a shape that stands approximately upwardly from the kitchen work surface (3). Alternatively, the neck (511) may be arranged to be inclined with respect to one surface of the kitchen work surface (3) on which the installation member (4) is formed.

[0359] For example, the neck (511) and the head (512) may be formed as separate parts and then joined together. Alternatively, for example, the neck (511) and the head (512) may be formed as a single body.

[0360] The dispenser body (510) can be connected to a connecting pipe (81). A portion of the connecting pipe (81) can be placed inside the dispenser body (510). A portion of a purified water passage (90) through which purified water flows can be provided inside the dispenser body (510).

[0361] The water purification unit (90) may include a dispensing unit (90a) disposed inside the dispenser body (510). The dispensing unit (90a) may be provided within a portion of a connecting pipe (81) disposed inside the dispenser body (510).

[0362] The dispenser (500) may include a discharge port (520) configured to discharge liquid from the dispenser (500). The discharge port (520) may be configured to discharge liquid flowing along the dispensing path (90a). The discharge port (520) may be configured to discharge purified water flowing along the dispensing path (90a).

[0363] For example, the outlet (520) may be provided on the opposite side of the dispenser body (510) from the side mounted on the kitchen worktop (3). The side from which purified water of the dispensing path (90a) is discharged may be provided on the outlet (520).

[0364] The dispenser (500) may include a nozzle (521). The nozzle (521) may be configured to discharge liquid from the dispenser (500). The nozzle (521) may be configured to discharge liquid flowing along the dispensing path (90a). The nozzle (521) may be configured to discharge purified water flowing along the dispensing path (90a).

[0365] In detail, the nozzle (521) can be connected to the dispenser body (510). The nozzle (521) can be connected to a connecting pipe (81) arranged inside the dispenser body (510). The nozzle (521) can be connected to a dispensing path (90a). That is, the nozzle (521) can be connected to a purified water path (90). The purified water path (90) can extend from the inside of the purified water body (10B) to the nozzle (521).

[0366] For example, the nozzle (521) can be connected to the dispensing flow path (90a) through the outlet (520).

[0367] For example, the nozzle (521) may be mounted on the outlet (520). Further, the nozzle (521) may be detachably mounted on the outlet (520). Alternatively, for example, the nozzle (521) may be formed integrally with the outlet (520).

[0368] The nozzle (521) may be configured to allow purified water to flow in through one side connected to the dispensing flow path (90a) and to discharge purified water through the opposite side. That is, the nozzle (521) may form an outlet for discharging purified water from the dispenser (500).

[0369] For example, the nozzle (521) may be arranged to discharge the purified water downward.

[0370] The dispenser (500) may include a valve device (540) that can allow or block the flow of liquid. The valve device (540) may control whether liquid is discharged through the nozzle (521). For example, the valve device (540) may be configured to open and close the dispensing path (90a). The valve device (540) may be positioned on the dispensing path (90a).

[0371] For example, the valve device (540) may be placed inside the dispenser body (510). For example, as illustrated in FIG. 3, the valve device (540) may be placed inside the neck (511).

[0372] However, this is not limited thereto, and the valve device (540) can be positioned in various positions to open or close the purification flow path (90) to allow or block the flow of purified water.

[0373] The dispenser (500) may include a dispensing lever (530) configured to control a valve device (540). The dispensing lever (530) may control the discharge of liquid through the nozzle (521) by controlling the valve device (540).

[0374] The dispenser (500) may include a user interface (550). For example, the user interface (550) may receive touch input. Alternatively, for example, the user interface (550) may output an image.

[0375] Referring to FIGS. 19 and 20, for example, the user interface (550) may be provided on the upper surface of the dispenser (500). For example, the user interface (550) may be provided on the head (512).

[0376] Specifically, the head (512) may be formed with an open upper portion. At this time, the user interface (30) may be coupled to the upper portion of the open head (512), and various electronic components constituting the user interface (30) may be arranged in the internal space of the head (512).

[0377] However, the location of the user interface (550) is not limited to the example described above, and the user interface (550) may be provided in various locations where it can receive input from the user for settings for discharging liquid, etc.

[0378] A detailed description of the user interface (550) is provided below.

[0379] The water purification device (2) can be configured to provide purified water of various temperatures. Specifically, the water purification device (2) can be configured to provide purified water of various temperatures based on a user input corresponding to a temperature setting of the purified water.

[0380] For example, the water purification device (2) may include a cooling device (60). The cooling device (60) may be configured to cool a liquid. The cooling device (60) may be configured to cool purified water or raw water, depending on its location.

[0381] For example, the cooling device (60) may include a cooling circuit including a compressor, a condenser, an expander, and an evaporator. For example, the cooling device (60) may be disposed in the water purifier body (10B). However, the present invention is not limited thereto, and the cooling device (60) may include various types of cooling devices and may be disposed in various locations of the water purifier (2).

[0382] Additionally, the water purification device (2) may include a heater (100). The heater (100) may be configured to heat liquid. The heater (100) may be configured to heat water. By means of the heater (100), the water purification device (2) may provide hot water.

[0383] The heater (100) may be configured to generate heat. The heater (100) may be configured to heat water by generating heat. The heater (100) may be configured to generate heat based on the application of voltage.

[0384] The heater (100) may be placed on a path through which water flows in the water purification device (2). The heater (100) may be arranged to heat the water passing through the heater (100).

[0385] Specifically, the heater (100) may include an inlet (101) through which water is introduced into the heater (100), and an outlet (102) through which water is discharged from the heater (100). The water may be introduced into the heater (100) through the inlet (101), heated, and then discharged from the heater (100) through the outlet (102).

[0386] An inlet (101) may be provided on one side of the heater (100). The inlet (101) may be provided on the upstream side of the heater (100). For example, as shown in FIGS. 19 and 20, the inlet (101) may be provided on one side adjacent to the nozzle (521) of the heater (100).

[0387] The outlet (102) may be provided on the opposite side of the heater (100) where the inlet (101) is located. The outlet (102) may be provided on the downstream side of the heater (100). For example, as illustrated in FIGS. 19 and 20, the outlet (102) may be provided on the opposite side of the heater (100) where the nozzle (521) is located. The outlet (102) may be located further downstream of the flow path than the inlet (101).

[0388] For example, the width of the inlet (101) and the width of the outlet (102) may roughly correspond. In other words, the cross-sectional area of ​​the inlet (101) and the cross-sectional area of ​​the outlet (102) may roughly correspond.

[0389] However, in contrast to this, the width of the inlet (101) may be greater than the width of the outlet (102), or the width of the inlet (101) may be smaller than the width of the outlet (102), and the width of the inlet (101) may be different from each other (e.g., see FIG. 22).

[0390] The heater (100) may be formed to have a bar shape extending in one direction. For example, the heater (100) may extend linearly between the inlet (101) and the outlet (102) along the direction in which the inlet (101) and the outlet (102) face each other. However, the present invention is not limited thereto, and the heater (100) may also extend so as to have at least a portion of the heater (100) bent between the inlet (101) and the outlet (102).

[0391] The heater (100) may include a graphene scroll (200) forming a heating path (103). The graphene scroll (200) may heat water flowing along the heating path (103) when current flows. The graphene scroll (200) may be a single graphene scroll composed of a single graphene sheet, or may include a plurality of graphene scrolls composed of a plurality of graphene sheets and arranged to overlap each other.

[0392] The heating path (103) can form at least a portion of the path through which water flows in the water purification device (2). When water is provided by the water purification device (2), the water can pass through the heating path (103), and the graphene scroll (200) can heat the water passing through the heating path (103).

[0393] For example, the heating path (103) may extend in one direction, but is not limited thereto, and the direction in which the heating path (103) extends may vary depending on the shape of the heater (100), the positions of the inlet (101) and the outlet (102), etc.

[0394] The heater (100) can be connected to the purified water passage (90). The heating passage (103) can be connected to the purified water passage (90). Thus, the purifier (2) can provide heated purified water.

[0395] The heater (100) may be arranged to heat the purified water. The heater (100) may be arranged downstream from the purified water passage (90) to heat the purified water. The heating passage (103) may be arranged downstream from the purified water passage (90). The heating passage (103) may be arranged downstream from the dispensing passage (90a). The inlet (101) of the heater (100) may be arranged downstream from the purified water passage (90).

[0396] As illustrated in FIGS. 19 and 20, the heater (100) may be mounted on the dispenser (500). Specifically, the heater (100) may be mounted on the outlet (520) of the dispenser (500). Alternatively, the heater (100) may be mounted on the nozzle (521) of the dispenser (500). The heater (100) may be arranged downstream from the nozzle (521) to heat purified water discharged from the nozzle (521). The inlet (101) of the heater (100) may be arranged downstream from the nozzle (521), so that purified water discharged through the nozzle (521) may flow into the heater (100) through the inlet (101).

[0397] For example, the heater (100) may be arranged to extend vertically when mounted on the nozzle (521). In other words, as illustrated in FIGS. 19 and 20, the heater (100) may be arranged such that the inlet (101) is positioned above, the outlet (102) is positioned below, and the heating path (103) extends vertically between the inlet (101) and the outlet (102) when mounted on the nozzle (521). Accordingly, purified water discharged downward through the nozzle (521) may flow downward along the heating path (103), be heated, and then be discharged downward through the outlet (102).

[0398] The nozzle (521) may include a heater mounting portion (521a) provided to mount the heater (100). For example, the heater mounting portion (521a) may be provided to support one side adjacent to the inlet (101) of the heater (100). For example, the heater mounting portion (521a) may be provided to support the outer surface of the heater (100). For example, the nozzle (521) may be detachably mounted to the heater mounting portion (521a).

[0399] As illustrated in FIGS. 19 and 20, the water purification device (2) may include a heater housing (400) in which a heater (100) is accommodated. The heater housing (400) may cover an outer circumferential surface of the heater (100). The heater (100) may be arranged to heat water flowing inside the heater housing (400).

[0400] For example, when the heater (100) is mounted on the dispenser (500), the heater housing (400) may also be mounted on the dispenser (500). For example, when the heater (100) is mounted on the outlet (520) or nozzle (521), the heater housing (400) may also be mounted on the outlet (520). For example, the heater housing (400) may be detachably mounted on the outlet (520).

[0401] The heater housing (400) may include a heater receiving portion (401) in which a heater (100) is received. The heater (100) may be placed inside the heater receiving portion (401).

[0402] The heater housing (400) may be formed so that both ends are open. The heater receiving portion (401) may be connected to the outside of the heater receiving portion (401) through the open ends.

[0403] The purified water discharged through the nozzle (521) can flow into the heater receiving portion (401) through one end of the heater housing (400), and the purified water heated by the heater (100) can be discharged from the heater receiving portion (401) through the other end of the heater housing (400).

[0404] For example, the heater housing (400) may have a roughly cylindrical shape with the heater housing (400) being hollow, but the shape is not limited thereto.

[0405] For example, the heater housing (400) may extend approximately vertically. Correspondingly, the heater receiving portion (401) may extend approximately vertically. The heater housing (400) and the heater (100) may extend in a direction parallel to each other.

[0406] For example, the heater housing (400) may be provided so that its inner surface contacts the outermost periphery of the graphene scroll (200) of the heater (100) and supports the graphene scroll (200) from the outside so that the shape of the graphene scroll (200) can be maintained. However, alternatively, the inner surface of the heater housing (400) and the outermost periphery of the graphene scroll (200) may be spaced apart from each other.

[0407] Meanwhile, unlike the above-described, the heater (100) may not be directly mounted to the nozzle (521). For example, the heater (100) may be supported by the heater housing (400) and may be mounted to the water outlet (520) and connected to the nozzle (521) through a structure in which the heater housing (400) is mounted to the water outlet (520). In this case, as an example, the heater housing (400) may be detachably mounted to the water outlet (520), and the heater (100) may be detachably mounted to the heater housing (400). Alternatively, as an example, the heater (100) may be detachably mounted directly to the water outlet (520).

[0408] Additionally, unlike what was described above, the heater (100) may be arranged so that it is not detachable when mounted to the dispenser (500).

[0409] In the above, an embodiment in which the heater (100) is arranged downstream from the purified water passage (90) to directly heat the purified water has been described, but the arrangement of the heater (100) is not limited thereto. For example, the heater (100) may be arranged on the purified water passage (90), and in particular, may be arranged inside the dispenser body (510) to heat water passing through the dispensing passage (90a) among the purified water passages (90). Alternatively, for example, the heater (100) may be arranged upstream from the dispensing passage (90a). Alternatively, for example, the heater (100) may be arranged upstream from the purified water passage (90). The heater (100) may be arranged upstream from the filter (F) to directly heat the raw water.

[0410] In this way, the water purification device (2) can provide heated water by including a heater (100).

[0411] The water purification device (2) may include a control unit (50B) that controls various components of the water purification device (2).

[0412] The control unit (50B) may include a processor (51B) that generates a control signal regarding the operation of the water purification device (2), and a memory (52B) that stores programs, applications, instructions, and / or data for the operation of the water purification device (2). The processor (51B) and the memory (52B) may be implemented as separate semiconductor devices or as a single semiconductor device.

[0413] Additionally, the control unit (50B) may include a plurality of processors or a plurality of memories. The control unit (50B) may be provided at various locations within the water purification device (2).

[0414] The processor (51B) may include an arithmetic circuit, a memory circuit, and a control circuit. The processor (51B) may include one chip or multiple chips. In addition, the processor (51B) may include one core or multiple cores.

[0415] The memory (52B) stores various programs and data required for control, and can temporarily store temporary data generated during control.

[0416] The memory (52B) may include volatile memory such as Static Random Access Memory (S-RAM) and Dynamic Random Access Memory (D-RAM), and non-volatile memory such as Read Only Memory (ROM) and Erasable Programmable Read Only Memory (EPROM). The memory (52B) may include one memory element or may include a plurality of memory elements.

[0417] The processor (51B) may be electrically connected to the memory (52B). The processor (51B) may process data and / or signals using a program provided from the memory (52B) and transmit a control signal to each component of the water purification device (2) based on the processing result. Each component of the water purification device (2) may be operated based on the control signal of the processor (51B).

[0418] For example, the electronic components constituting the control unit (50B) may be placed inside the dispenser body (510). Alternatively, for example, the control unit (50B) may be placed inside the water purifier body (10B). Alternatively, for example, the control unit (50B) may be composed of a plurality of modules, some of which may be placed inside the dispenser body (510) and others of which may be placed inside the water purifier body (10B). However, the present invention is not limited thereto, and the electronic components constituting the control unit (50B) may be provided at various locations in the water purifier device (2).

[0419] The user interface (550) of the water purification device (2) may include an input device (551) for receiving user input. Types of user input that may be received through the input device (551) may include on / off settings for the power of the water purification device (2), settings for the water output amount, and settings for the temperature of the water purification device (i.e., the heating level of the heater (100)).

[0420] For example, the input device (551) may include a room temperature water button for obtaining a user input for setting to discharge room temperature purified water through the dispenser (500), a hot water button for obtaining a user input for setting to discharge hot water through the dispenser (500), a cold water button for obtaining a user input for setting to discharge cold water through the dispenser (500), a water output amount setting button for obtaining a user input for setting a target amount of liquid to be discharged through the dispenser (500), or a dispensing button for obtaining a user input for requesting to discharge purified water at a set temperature through the dispenser (500). In addition to purified water, depending on the configuration of the purification device (2), the input device (551) may also include buttons for obtaining a user input for requesting to discharge various types of liquids.

[0421] The input device (551) may include various types of input devices such as a tact switch, a push switch, a slide switch, a toggle switch, a micro switch, or a touch switch.

[0422] The input device (551) can be electrically connected to the control unit (50B). The input device (551) can receive user input and output an electrical signal (voltage or current) corresponding to the user input to transmit to the control unit (50B). The control unit (50B) can receive user input based on the output signal of the input device (551).

[0423] The user interface (550) may include a display (552) for displaying information related to the operation or status of the water purification device (2).

[0424] The operation or status information of the water purification device (2) that can be displayed by the display (552) may include setting information corresponding to user input (water output setting / temperature setting, etc.), operation information of the water purification device (2), etc.

[0425] The display (552) can be electrically connected to the control unit (50B). The display (552) can display setting information corresponding to user input and / or operation information of the water purification device (2), etc., based on a signal received from the control unit (50B).

[0426] For example, the display (552) may include a liquid crystal display (LCD) panel, a light emitting diode (LED) panel, etc.

[0427] However, the configuration of the user interface (550) provided in the water purification device (2) according to the idea of ​​the present disclosure is not limited thereto, and various types of user interfaces may be provided.

[0428] As described above, the water purifier (2) may include a dispensing lever (530). The dispensing lever (530) may be configured to change its position or posture, for example, by physical pressure from a user. The dispensing lever (530) may include a dispensing switch (531) that is turned on or off (closed or open) depending on the position or posture of the dispensing lever (530). For example, when the dispensing lever (530) is in a first position or a first posture, the dispensing switch (531) may be turned off (or opened). When the dispensing lever (530) is moved to a second position or a second posture by physical pressure from the user, the dispensing switch (531) may be turned on (or closed).

[0429] A dispensing switch (531) can obtain a user input requesting to dispense a liquid (e.g., purified water, etc.) through the dispenser (500). The dispensing switch (531) can include, for example, a push switch, a micro switch, or a reed switch.

[0430] The dispensing switch (531) can output an electrical signal corresponding to the acquired user input and provide it to the control unit (50B). The control unit (50B) can identify a user input requesting to discharge liquid based on the output signal of the dispensing switch (531). The control unit (50B) can control the valve device (540) to open the dispensing path (90a) based on the output signal of the dispensing switch (531).

[0431] From this perspective, the dispensing lever (530) can be viewed as a type of input device.

[0432] As described above, the water purification device (2) may include a valve device (540) configured to open or close a flow path. When the valve device (540) opens the flow path, water may flow along the opened flow path. When the valve device (540) closes the flow path, water may not flow along the flow path. For example, the valve device (540) may be configured to open and close a dispensing flow path (90a).

[0433] At this time, the control unit (50B) can control the valve device (540). The control unit (50B) can be electrically connected to the valve device (540), and the valve device (540) can open or close the flow path based on a control command received from the control unit (50B). For example, the control unit (50B) can control the operation of the valve device (540) based on a user input obtained from the input device (551) or the dispensing lever (530).

[0434] The valve device (540) may include, for example, an electric operated valve (solenoid valve, etc.) that opens or closes the flow path by a driving current (or driving voltage).

[0435] As described above, the water purification device (2) may include a cooling device (60). The cooling device (60) may be configured to cool a liquid. For example, the cooling device (60) may be configured to cool purified water. Alternatively, for example, the cooling device (60) may be configured to cool raw water.

[0436] As described above, the cooling device (60) may include a cooling circuit. At this time, the compressor constituting the cooling circuit of the cooling device (60) may include a motor. The compressor of the cooling device (60) may circulate refrigerant in the cooling circuit using the torque of the motor. The cooling device (60) may cool liquid by evaporation of the refrigerant circulating in the refrigerant circuit.

[0437] The control unit (50B) can control the cooling device (60). The control unit (50B) can be electrically connected to the cooling device (60). The control unit (50B) can control the cooling device (60) to cool water based on conditions for providing cold water. For example, the control unit (50B) can control the cooling device (60) to cool liquid by applying a driving current to the motor of the compressor of the cooling device (60).

[0438] The control unit (50B) can be electrically connected to the power supply unit (40) of the heater (100). The control unit (50B) can control the power supply unit (40) to apply or not apply voltage between the plurality of electrodes (300) based on preset conditions.

[0439] The preset conditions referred to herein may include user input obtained through the input device (551) or the dispensing lever (530). For example, when a user input to discharge hot water is obtained through the input device (551) or the dispensing lever (530), the control unit (50B) may control the power supply unit (40) to apply voltage between the plurality of electrodes (300) so that the heater (100) can heat the water to a temperature within a preset range. Alternatively, when a user input to discharge lukewarm water, room temperature water, or cold water is obtained through the input device (551) or the dispensing lever (530), the control unit (50B) may control the power supply unit (40) not to apply voltage between the plurality of electrodes (300) or to reduce the magnitude of the applied voltage.

[0440] For example, the electronic components constituting the power supply unit (40) may be placed inside the dispenser body (510). However, this is not limited thereto, and the electronic components constituting the power supply unit (40) may be provided at various locations in the water purification device (2). For example, the electronic components constituting the power supply unit (40) may be placed in the water purification body (10B), or may be placed in a configuration other than the dispenser (500) or the water purification body (10B).

[0441] FIG. 22 is a cross-sectional view illustrating a portion of a water purification device according to one embodiment of the present disclosure.

[0442] Referring to FIG. 22, a heater (100-2) of a water purification device (2) according to one embodiment of the present disclosure may include an inlet (101-2) through which liquid (e.g., purified water) flows into the heater (100-2), and an outlet (102-2) through which liquid is discharged from the heater (100-2). A heating path (103-2) through which liquid is heated may be formed between the inlet (101-1) and the outlet (102-2). The liquid may flow along the heating path (103-2).

[0443] The heater (100-2) may include at least one graphene scroll (200-2). The heating path (103-2) may be formed by at least one graphene scroll (200-2). The at least one graphene scroll (200-2) may be configured to heat a liquid flowing along the heating path (103-2). The at least one graphene scroll (200-2) may be configured to generate heat based on the application of a voltage.

[0444] As illustrated in FIG. 22, the width (r2) of the outlet (102-2) of the heater (100-2) may be smaller than the width (r1) of the inlet (101-2). In other words, the cross-sectional area of ​​the outlet (102-1) may be smaller than the cross-sectional area of ​​the inlet (101-1).

[0445] Accordingly, the cross-sectional area of ​​one side adjacent to the outlet (102-2) of the heating path (103-2) may be smaller than the cross-sectional area of ​​the other side adjacent to the inlet (101-2) of the heating path (103-2). As illustrated in Fig. 22, the heating path (103-2) may be formed so that its width becomes narrower from the inlet (101-2) toward the outlet (102-2).

[0446] As shown in Fig. 22, the width of the heating path (103-2) may decrease at a constant rate from the inlet (101-2) toward the outlet (102-2), but is not limited thereto.

[0447] In other words, the graphene scroll (200-2) can be formed so that the cross-sectional area of ​​the heating path (103-2) on the side adjacent to the outlet (102-2) is narrower than the cross-sectional area of ​​the heating path (103-2) on the side adjacent to the inlet (101-2).

[0448] The width of the heating path (103-2), the width (r1) of the inlet (101-2), and the width (r2) of the outlet (102-2) mentioned here mean the width measured in the direction perpendicular to the central axis (CA) of the heating path (103-2).

[0449] In addition, the cross-sectional area of ​​the heating path (103-2), the cross-sectional area of ​​the inlet (101-2), and the cross-sectional area of ​​the outlet (102-2) mentioned here mean the area of ​​the cross-section cut by a plane perpendicular to the central axis (CA) of the heating path (103-2).

[0450] By this configuration, the flow rate of the liquid introduced through the outlet (102-2) can be greater than the flow rate of the liquid introduced through the inlet (101-2), and thus the water purification device (2) can provide purified water at a faster rate.

[0451] The configuration of the heater (100 or 100-2) including the graphene scroll (200 or 200-2) and the electrode (300) included in the water purification device (1) according to the embodiment of FIGS. 18 to 22 corresponds to the configuration of the heater (100 or 100-2) applied to the hot air device (1) described with reference to FIGS. 3 to 17, and therefore, a detailed description thereof is omitted.

[0452] In the above, the configurations of a water purification device including a heater have been described as examples with reference to FIGS. 18 to 22. However, the configurations described above can also be applied to various devices configured to heat water using a heater (e.g., humidifiers, steam ovens, dishwashers, steam cleaners, clothing care devices, etc.) in addition to water purification devices.

[0453] In addition, the configurations described above can be applied to various types of dispensing devices configured to heat and provide not only water but also beverages such as coffee and milk using a heater.

[0454] The configurations described above can be applied to various types of devices including heaters that are arranged to heat fluids having various phases, including gases and liquids.

[0455] A heater according to one embodiment of the present disclosure is a heater configured to heat a fluid, the heater including: a first graphene scroll configured to generate heat when current flows therethrough; a first electrode configured to apply voltage to the first graphene scroll; a second graphene scroll arranged parallel to the first graphene scroll, forming a heating path through which the fluid is heated together with the first graphene scroll, and configured to generate heat when current flows therethrough; and a second electrode configured to apply voltage to the second graphene scroll.

[0456] The first graphene scroll and the second graphene scroll may be spaced apart from each other. The heating path may be formed in the space between the first graphene scroll and the second graphene scroll.

[0457] The heater may further include a spacer disposed between the first graphene scroll and the second graphene scroll to maintain a gap between the first graphene scroll and the second graphene scroll.

[0458] At least a portion of the first graphene scroll may cover at least a portion of the second graphene scroll in an outward direction. At least a portion of the second graphene scroll may cover at least a portion of the first graphene scroll in an outward direction.

[0459] The first electrode may include a pair of first electrodes connected to the first graphene scroll. The second electrode may include a pair of second electrodes connected to the second graphene scroll.

[0460] The heater may further include at least one power supply. The at least one power supply may be configured to apply a voltage between the pair of first electrodes or to apply a voltage between the pair of second electrodes.

[0461] The at least one power supply unit may be arranged to apply voltage only between the pair of first electrodes or to apply voltage only between the pair of second electrodes based on a condition for heating the fluid to a first temperature. The at least one power supply unit may be arranged to apply voltage between the pair of first electrodes and to apply voltage between the pair of second electrodes based on a condition for heating the fluid to a second temperature higher than the first temperature.

[0462] The at least one power supply unit may be arranged to apply a voltage between the pair of first electrodes based on a condition for heating the fluid to a first temperature. The at least one power supply unit may be arranged to apply a voltage between the pair of second electrodes based on a condition for heating the fluid to a second temperature higher than the first temperature. The at least one power supply unit may be arranged to apply a voltage between the pair of first electrodes and to apply a voltage between the pair of second electrodes based on a condition for heating the fluid to a third temperature higher than the second temperature.

[0463] The heating path may extend between an inlet through which fluid flows into the heater and an outlet through which fluid flows out of the heater. The first graphene scroll and the second graphene scroll may each extend between the inlet and the outlet along the heating path.

[0464] The length of the first graphene scroll extending between the inlet and the outlet and the length of the second graphene scroll extending between the inlet and the outlet may be the same.

[0465] The first graphene scroll may be extended such that the distance from the central axis of the heating channel increases as it moves from one end adjacent to the central axis extending between the inlet and the outlet of the heating channel toward the other end. The second graphene scroll may be extended such that the distance from the central axis of the heating channel increases as it moves from one end adjacent to the central axis extending between the inlet and the outlet of the heating channel toward the other end.

[0466] The first graphene scroll may extend in a first direction from one end adjacent to the central axis of the heating passage toward the other end. The second graphene scroll may extend in the first direction from one end adjacent to the central axis of the heating passage toward the other end.

[0467] The length of the first graphene scroll extending from one end adjacent to the central axis of the heating path to the other end may be the same as the length of the second graphene scroll extending from one end adjacent to the central axis of the heating path to the other end.

[0468] The first electrode may extend in a direction parallel to the direction in which the first graphene scroll extends from one end adjacent to the central axis of the heating passage toward the other end. The second electrode may extend in a direction parallel to the direction in which the second graphene scroll extends from one end adjacent to the central axis of the heating passage toward the other end.

[0469] The first electrode and the second electrode may each extend in a direction parallel to the direction in which the heating path extends from the inlet toward the outlet.

[0470] A hot air device according to one embodiment of the present disclosure may include a main body, a fan disposed in the main body, and a heater disposed in the main body and configured to heat air flowing along a heating path as the fan rotates. The heater may include a first graphene scroll configured to generate heat when current flows therethrough, a first electrode configured to apply voltage to the first graphene scroll, a second graphene scroll configured to be disposed parallel to the first graphene scroll, form the heating path together with the first graphene scroll, and generate heat when current flows therethrough, and a second electrode configured to apply voltage to the second graphene scroll.

[0471] The first graphene scroll and the second graphene scroll may be arranged to overlap each other at a position spaced apart from each other. The heating path may be formed in the space between the first graphene scroll and the second graphene scroll.

[0472] The above graphene scroll may be formed so that the cross-sectional area of ​​the heating path on the side where air is introduced into the heating path is larger than the cross-sectional area of ​​the heating path on the side where air is discharged from the heating path.

[0473] A water purifying device according to one embodiment of the present disclosure may include a dispenser that provides purified water, and a heater that is configured to heat purified water flowing along a heating path. The heater may include a first graphene scroll that is configured to generate heat when current flows through it, a first electrode that is configured to apply voltage to the first graphene scroll, a second graphene scroll that is arranged parallel to the first graphene scroll and forms a heating path through which a fluid is heated together with the first graphene scroll, and is configured to generate heat when current flows through it, and a second electrode that is configured to apply voltage to the second graphene scroll.

[0474] The dispenser may further include a nozzle through which purified water is discharged. The heater may be detachably mounted to the nozzle.

[0475] Meanwhile, the control method for the aforementioned hot air device can be implemented in the form of a recording medium storing computer-executable instructions. The instructions can be stored in the form of program code, and when executed by a processor, can generate program modules to perform the operations of the disclosed embodiments. The recording medium can be implemented as a computer-readable recording medium.

[0476] Computer-readable storage media include all types of storage media that store instructions that can be deciphered by a computer. Examples include read-only memory (ROM), random access memory (RAM), magnetic tape, magnetic disks, flash memory, and optical data storage devices.

[0477] A device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, "non-transitory" simply means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves). This term does not distinguish between cases where data is permanently stored in the storage medium and cases where data is temporarily stored. For example, a "non-transitory storage medium" may include a buffer in which data is temporarily stored.

[0478] According to one embodiment, the method for controlling a hot air device according to various embodiments disclosed in the present document may be provided as a computer program product. The computer program product may be traded as a commodity between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) via 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 (e.g., downloadable app) may be temporarily stored or temporarily generated in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

[0479] According to the invention of the present invention, the heating efficiency of a fluid can be improved by using a graphene heating element having high heating efficiency as a heat source.

[0480] According to the invention of the present invention, the power consumption of the heater can be reduced by using a graphene heating element having high heat generation efficiency as a heat source.

[0481] According to the invention of the present invention, the temperature change rate of the heater can be improved by using a graphene heating element as a heat source, which is heated at a rapid rate when voltage is applied and quickly restored to the original temperature when voltage is stopped.

[0482] According to the invention of the present invention, the heater can include a graphene scroll having a shape in which a graphene sheet is rolled into a scroll shape, thereby increasing the heating area and improving the heating efficiency of a fluid.

[0483] According to the invention, the heater can prevent the shape of the graphene scroll from being deformed by including a spacer.

[0484] According to the invention of the present invention, the heater may include an electrode electrically connected to the graphene scroll to apply voltage, thereby facilitating heat generation control.

[0485] According to the invention, a plurality of graphene scrolls can be included in a single heater, thereby improving the heating efficiency of a fluid.

[0486] According to the invention of the present invention, a plurality of graphene scrolls may be included in a single heater, and the plurality of graphene scrolls may be independently supplied with voltage through electrodes connected thereto, thereby facilitating heat generation control of the heater.

[0487] According to the invention of the present invention, the heater may have a cross-sectional area of ​​the outlet smaller than the cross-sectional area of ​​the inlet, so that the speed of hot air discharged through the outlet may increase.

[0488] The effects according to the idea of ​​the present disclosure are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art to which the present invention pertains from the description below.

[0489] The above illustrates and describes specific embodiments. However, the invention is not limited to the above-described embodiments, and those skilled in the art will readily appreciate that various modifications and implementations can be made without departing from the spirit and scope of the invention as set forth in the claims below.

Claims

1. A heater designed to heat a fluid, A first graphene scroll configured to generate heat when current flows through it; A first electrode provided to apply voltage to the first graphene scroll; A second graphene scroll arranged parallel to the first graphene scroll, forming a heating path through which a fluid is heated together with the first graphene scroll, and configured to generate heat when current flows; and A heater including a second electrode configured to apply voltage to the second graphene scroll.

2. In paragraph 1, The first graphene scroll and the second graphene scroll are arranged spaced apart from each other, The above heating path is a heater formed in a space between the first graphene scroll and the second graphene scroll.

3. In paragraph 2, A heater further comprising a spacer disposed between the first graphene scroll and the second graphene scroll to maintain a gap between the first graphene scroll and the second graphene scroll.

4. In paragraph 1, At least a portion of the first graphene scroll covers at least a portion of the second graphene scroll in an outer direction, A heater wherein at least a portion of the second graphene scroll covers at least a portion of the first graphene scroll in an outer direction.

5. In paragraph 1, The first electrode comprises a pair of first electrodes connected to the first graphene scroll, A heater comprising a pair of second electrodes connected to the second graphene scroll, wherein the second electrode is a second electrode.

6. In paragraph 5, further comprising at least one power supply; At least one of the power supplies, A heater configured to apply a voltage between the pair of first electrodes or to apply a voltage between the pair of second electrodes.

7. In paragraph 6, At least one of the power supplies, Applying voltage only between the pair of first electrodes or applying voltage only between the pair of second electrodes based on the condition for heating the fluid to the first temperature, A heater configured to apply a voltage between the pair of first electrodes and to apply a voltage between the pair of second electrodes based on a condition for heating the fluid to a second temperature higher than the first temperature.

8. In paragraph 6, At least one of the power supplies, Applying a voltage between the pair of first electrodes based on the condition for heating the fluid to a first temperature, Applying a voltage between the pair of second electrodes based on a condition for heating the fluid to a second temperature higher than the first temperature, A heater configured to apply a voltage between the pair of first electrodes and to apply a voltage between the pair of second electrodes based on a condition for heating the fluid to a third temperature higher than the second temperature.

9. In paragraph 1, The above heating path extends between an inlet through which fluid flows into the heater and an outlet through which fluid flows out of the heater, The first graphene scroll and the second graphene scroll are heaters each extending between the inlet and the outlet along the heating path.

10. In paragraph 9, A heater wherein the length of the first graphene scroll extending between the inlet and the outlet is the same as the length of the second graphene scroll extending between the inlet and the outlet.

11. In paragraph 9, The above first graphene scroll, The central axis extending between the inlet and the outlet of the heating path is extended from one end adjacent to the central axis toward the other end so that the distance from the central axis of the heating path increases, The above second graphene scroll, A heater extending from one end adjacent to a central axis extending between the inlet and the outlet of the heating path to the other end such that the distance from the central axis of the heating path increases.

12. In paragraph 11, The first graphene scroll extends in a first direction from one end adjacent to the central axis of the heating path toward the other end, The second graphene scroll is a heater extending in the first direction from one end adjacent to the central axis of the heating path toward the other end.

13. In paragraph 12, A heater wherein the length of the first graphene scroll extending from one end adjacent to the central axis of the heating path to the other end and the length of the second graphene scroll extending from one end adjacent to the central axis of the heating path to the other end are the same.

14. In paragraph 11, The first electrode extends in a direction parallel to the direction in which the first graphene scroll extends from one end adjacent to the central axis of the heating path toward the other end, The second electrode is a heater in which the second graphene scroll extends in a direction parallel to the direction in which the second graphene scroll extends from one end adjacent to the central axis of the heating path toward the other end.

15. In paragraph 9, A heater wherein the first electrode and the second electrode each extend in a direction parallel to the direction in which the heating path extends from the inlet toward the outlet.

Images