Electrode heating element, electrode heating device including the same, and leakage prevention control method applicable thereto

Abstract

According to an embodiment of the present invention, an electrode heating device is provided, comprising: a device housing; an electrode heating element accommodated and arranged inside the device housing, comprising a central conductor, an internal conductor arranged on the inner side of the central conductor and forming a gap, and an external conductor arranged on the outer side of the central conductor and forming a gap; a control board accommodated and arranged inside the device housing, for controlling the heating operation of the electrode heating element by supplying power to the electrodes of the electrode heating element.

Description

Technical Field

[0001] The present invention relates to an electrode heating element, and more particularly, to an electrode heating element that further improves heating function through a multiple structure of a conductor, an electrode heating device including the electrode heating element, and an anti-leakage control method applicable thereto. Background Art

[0002] Generally speaking, electric water heaters for heating water widely use electrode type, resistance type and heating wire type.

[0003] The electrode type uses water itself as a resistor, and generates Joule heat by passing current between the electrodes to heat the water. The resistance type or heating wire type is a method in which a metal resistance wire is placed directly or indirectly in water and uses it to generate heat.

[0004] However, the existing electrode-type heating element used in electric water heaters is a simple layer structure of positive (+) and negative (-) electrodes, which cannot effectively heat water. An electrode-type heating structure that can effectively heat water is needed. Summary of the Invention

[0005] Technical issues

[0006] The present invention provides an electrode heating element that further improves heating function through the multiple structures of the conductor, an electrode heating device including the electrode heating element, and an anti-leakage control method applicable thereto.

[0007] Technical Solution

[0008] According to one aspect of the present invention, an electrode heating device is provided, comprising: a device housing; an electrode heating element accommodated and arranged inside the device housing, comprising a central conductor, an internal conductor arranged on the inner side of the central conductor and forming a gap, and an external conductor arranged on the outer side of the central conductor and forming a gap; a control board accommodated and arranged inside the device housing, for controlling the heating operation of the electrode heating element by supplying power to the electrodes of the electrode heating element.

[0009] In an embodiment of the present invention, the central conductor of the electrode heating element includes: a plate-shaped first main body; and a first power supply portion, which is formed protrudingly on one side of the first main body and is connected to either a positive (+) power supply or a negative (-) power supply.

[0010] The internal conductor of the heating element is formed in a rod-like shape in an integrated or separated manner at the center of the surface of the external conductor, thereby connecting to the other power source of the positive (+) power source and the negative (-) power source.

[0011] The external conductor of the heating element may include: a second main body portion, in which a plurality of inflow holes for water to flow in are formed around a portion of the surface of the external conductor on which the internal conductor is formed, the first main body portion is accommodated and a gap is formed on the outside of the first main body portion; and a second power-carrying portion, which is protrudingly formed on one side of the second main body portion to connect to the other power source of the positive (+) power supply and the negative (-) power supply.

[0012] In an embodiment of the present invention, the control board may include: a circuit unit for supplying power to the electrode of the electrode heating element; a leakage current detector for detecting the leakage current of the circuit part of the electrode heating element; and an AC phase controller for eliminating the leakage current by operating an inverting relay according to the detection of the leakage current detector.

[0013] In an embodiment of the present invention, the device housing may include: a accommodating space on the inner side of the center of the bottom of the housing for accommodating the electrode heating element; a cover plate, arranged to close the accommodating space at the bottom of the housing, and having a plurality of water inflow holes on the plate surface; and a plurality of channels, arranged in the form of grooves around the cover plate in the bottom of the housing, and connected to the accommodating space.

[0014] In an embodiment of the present invention, at least one convection device may be further included, which is arranged on the side wall or bottom of the device housing to promote the outward propagation of heat generated by the electrode heating element.

[0015] At this time, the control board may include a driving circuit for controlling the operation of the convection device. In addition, the convection device may include at least one of an ultrasonic generator, a high frequency generator, a bubble generator, an air pump, a water pump, and a propeller.

[0016] In an embodiment of the present invention, the overall shape of the device housing may have the appearance of a ship, and may be made so that the specific gravity and volume can float on the water surface at the upper part of the housing. A visual indicator may be provided on the device housing to confirm the operating status of the electrode heating element according to the operation control of the control panel.

[0017] Effects of the Invention

[0018] The electrode heating element according to an embodiment of the present invention utilizes a plate-shaped conductor, minimizing the thickness of the heating element and making it compact. The structure in which a positive (+) conductor surrounds a negative (-) conductor enables efficient water heating. Furthermore, unlike conventional electrode heating elements that simply have a single layer of positive (+) and negative (-) electrodes, the electrode heating element according to one embodiment of the present invention utilizes a multiple structure in which an inner conductor, serving as a negative (-) electrode, and an outer conductor surround a central conductor, serving as a positive (+) electrode, and a top cover and a bottom cover, further enabling more efficient water heating.

[0019] In addition, the electrode heating element according to the embodiment of the present invention allows water to flow in more easily through the inflow holes formed on the upper cover and the lower cover on both sides, and the contact area between the water and the electrode is maximized through the detachable or integrated sandwich structure of the upper cover and the lower cover, so that water can be heated more efficiently.

[0020] In addition, a coating such as DLC (Diamond Like Carbon) is formed on each surface of the electrode heating element according to an embodiment of the present invention, which can protect the internal electrodes while being energized to prevent the generation of floating matter.

[0021] In addition, the electrode heating element according to the embodiment of the present invention can provide oxygen (O2) generated by the vibration and ionization of water molecules between the positive (+) electrode and the negative (-) electrode to provide a sterilization effect and soften water through H (hydrogen) and promote plant growth.

[0022] In addition, the anti-leakage control method applicable to the electrode heating element according to the embodiment of the present invention has the effect of detecting leakage current, reversing the phase of alternating current (AC) to normal when leakage occurs in water due to reverse phase, and thus offsetting the leakage.

[0023] In addition, according to the electrode heating device including the electrode heating body according to the embodiment of the present invention, water can be quickly heated by including a convection device that facilitates convection and circulation of water, thereby having an effect of being able to improve overall energy efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 1 is a three-dimensional diagram of an electrode heating element according to an embodiment of the present invention.

[0025] Figure 2 1 is an exploded perspective view of an electrode heating element according to an embodiment of the present invention.

[0026] Figure 3 FIG. 1 is a diagram illustrating an electrode heating element according to an embodiment of the present invention.

[0027] Figure 4 1 is an appearance diagram of an electrode heating element according to an embodiment of the present invention.

[0028] Figure 5 It is a three-dimensional diagram of an electrode heating element according to another embodiment of the present invention.

[0029] Figure 6 It is an exploded perspective view of an electrode heating element according to another embodiment of the present invention.

[0030] Figure 7 It is a three-dimensional diagram of an electrode heating element according to another embodiment of the present invention.

[0031] Figure 8It is an exploded perspective view of an electrode heating element according to another embodiment of the present invention.

[0032] Figure 9 FIG. 1 is a diagram illustrating an electrode heating element according to another embodiment of the present invention.

[0033] Figure 10 and Figure 11 This is an appearance diagram of an electrode heating element according to another embodiment of the present invention.

[0034] Figure 12 It is a top view of an electrode heating element according to another embodiment of the present invention.

[0035] Figure 13 is a cross-sectional view of an electrode heating element according to another embodiment of the present invention.

[0036] Figure 14 FIG. 1 is a diagram illustrating an electrode heating element according to another embodiment of the present invention.

[0037] Figure 15 and Figure 16 FIG. 1 is a diagram illustrating an electrode heating element according to another embodiment of the present invention.

[0038] Figure 17 and Figure 18 FIG. 1 is a diagram illustrating an electrode heating element according to another embodiment of the present invention.

[0039] Figure 19 and Figure 20 A diagram showing a leakage controller associated with a control current of an electrode heating element according to the present invention.

[0040] Figure 21 and Figure 22 A diagram showing the operating principle of an AC phase controller related to the control current of an electrode heating element according to the present invention is shown.

[0041] Figures 23 to 28 1 and 2 are diagrams illustrating an electrode heating element device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0042] The present invention is susceptible to various modifications and may have a variety of embodiments. Specific embodiments are shown in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, but rather should be understood to include all modifications, equivalents, and alternatives within the spirit and technical scope of the present invention.

[0043] When describing the present invention, if it is considered that a detailed description of the related known technology may unnecessarily obscure the main purpose of the present invention, the detailed description will be omitted. In addition, the numbers used in the description (e.g., first, second, etc.) are merely identifiers used to distinguish one component from other components.

[0044] Furthermore, throughout this specification, when a component is referred to as being "connected" or "coupled" to another component, the component may be directly connected or coupled to the other component, and it should be understood that, unless otherwise specifically stated, the component may be connected or coupled through another intermediate component. Furthermore, throughout this specification, when a section "includes" a component, unless otherwise specifically stated, it means that the section may further include other components, rather than excluding other components.

[0045] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0046] Figure 1 This is a three-dimensional diagram of an electrode heating element according to an embodiment of the present invention. Figure 2 This is an exploded perspective view of an electrode heating element according to an embodiment of the present invention. Figure 3 is a diagram illustrating an electrode heating element according to an embodiment of the present invention, Figure 4 1 is an appearance diagram of an electrode heating element according to an embodiment of the present invention.

[0047] refer to Figures 1 to 3 According to an embodiment of the present invention, the electrode heating element 100 may include: a central conductor 110 , an inner conductor 120 , an outer conductor 130 , an upper cover 140 and a lower cover 150 .

[0048] The electrode heating element 100 according to an embodiment of the present invention can quickly heat water using positive (+) and negative (-) conductors.

[0049] According to one embodiment of the present invention, the electrode heating element 100 is composed of a central conductor 110, an internal conductor 120, an external conductor 130, an upper cover 140 and a lower cover 150. In more detail, it can be composed of conductive materials such as stainless steel, aluminum, copper, brass alloy, brass, bronze, carbon, etc.

[0050] According to one embodiment of the present invention, the central conductor 110 is composed of a positive (+) conductor connected to a positive (+) power supply. The inner conductor 120 inside the central conductor 110 can be connected to a negative (-) power supply. The outer conductor 130 outside the central conductor 110 is also connected to a negative (-) power supply and is composed of a negative (-) conductor.

[0051] At this time, the inner conductor 120 is arranged to form a gap on the inner side of the central conductor 110, and the outer conductor 130 is arranged to form a gap on the outer side of the central conductor 110, so that the central conductor 110 with the positive (+) pole and the inner conductor 120 and the outer conductor 130 with the negative (-) pole are insulated from each other.

[0052] The central conductor 110 may include a first main body 111 having a plate-shaped ring shape; a first current-carrying portion 112 having a plate-shaped rod shape extending from the first main body 111 and connected to a positive (+) power source. The external conductor 130 may include a second main body 131 disposed outside the first main body 111 with a gap formed therebetween; and a second current-carrying portion 132 extending from the second main body 131 and connected to a negative (-) electrode.

[0053] In addition, the internal conductor 120 can be integrally or separately formed on the surface of the upper cover 140, and can be in a rod-like shape or in a plate-like ring shape with a certain gap in the inner direction of the first main body 111 to pass a negative (-) power supply.

[0054] Furthermore, the electrode heating element 100 according to an embodiment of the present invention further includes an upper cover 140 and a lower cover 150 .

[0055] The surface of the upper cover 140 is formed with multiple inflow holes 141 for water to flow in, and the upper cover 140 is combined with one side of the external conductor 130. The surface of the lower cover 150 is also formed with multiple inflow holes 151 for water to flow in easily, and the lower cover 150 can be combined with the other side of the external conductor 130.

[0056] Thus, the upper cover 140 and the lower cover 150 are coupled to each other to accommodate the central conductor 110 , the inner conductor 120 , and the outer conductor 130 .

[0057] Thus, the electrode heating element 100 according to one embodiment of the present invention can provide more efficient heating by having the inner conductor 120 as a negative (-) conductor and the outer conductor 130 surround the central conductor 110 as a positive (+) conductor.

[0058] In addition, unlike the existing heating element which simply has a single layer structure of positive (+) and negative (-) electrodes, the electrode heating element 100 according to one embodiment of the present invention can heat more efficiently through the multi-layer structure of the upper cover 140 and the lower cover 150.

[0059] In addition, the electrode heating element 100 according to one embodiment of the present invention allows water to flow in easily through the inflow holes 141 and 151 formed on the upper cover 140 and the lower cover 150 on both sides, and the contact area between water and the electrode is maximized through the separate or integrated sandwich structure of the upper cover 140 and the lower cover 150, so that water can be heated more efficiently.

[0060] In this way, according to one embodiment of the present invention, the electrode heating element 100 is composed of a plate-shaped central conductor 110 with a predetermined thickness, an internal conductor 120, an external conductor 130, an upper cover 140 and a lower cover 150. By surrounding the central conductor 110 as a positive (+) electrode body with the internal conductor 120, the external conductor 130, the upper cover 140 and the lower cover 150 as a negative (-) electrode body, the thickness of the electrode heating element 100 can be minimized while effectively heating water.

[0061] On the other hand, a coating such as a diamond-like carbon film DLC (Diamond Like Carbon) is formed on each surface of the electrode heating element 100 according to an embodiment of the present invention, which can pass electricity while protecting the internal electrodes to prevent the generation of floating particles.

[0062] In addition, reference Figure 4 According to an embodiment of the present invention, the electrode heating element 100 can be powered by a power supply unit (not shown) through a power connector 101 that accommodates the first power supply portion 112 and the second power supply portion 132 .

[0063] Figure 5 is a three-dimensional diagram of an electrode heating element according to another embodiment of the present invention, Figure 6 It is an exploded perspective view of an electrode heating element according to another embodiment of the present invention.

[0064] The following references Figure 5 and Figure 6 The structure of an electrode heating element according to another embodiment of the present invention will be described.

[0065] according to Figure 5 and Figure 6 The electrode heating element 100 of the embodiment may include a central conductor 110 , an inner conductor 120 , and an outer conductor 130 .

[0066] At this time, the central conductor 110, the internal conductor 120, and the external conductor 130 of the electrode heating element 100 are composed of conductors. More specifically, they can be composed of conductive materials such as stainless steel, aluminum, copper, brass alloy, brass, bronze, and carbon.

[0067] The central conductor 110 is connected to a positive (+) power supply, the inner conductor 120 and the outer conductor 130 are connected to a negative (−) power supply, and the central conductor 110 is insulated from the inner conductor 120 and the outer conductor 130 .

[0068] In addition, a plurality of water inflow holes are formed on the surface of the outer conductor 130 , and the inner conductor 120 is formed on the surface of the outer conductor in an integrated or separated manner, and can be formed in a rod-shaped, plate-shaped, or ring-shaped form.

[0069] Figure 7 is a three-dimensional diagram of an electrode heating element according to another embodiment of the present invention, Figure 8 This is an exploded perspective view of an electrode heating element according to another embodiment of the present invention. Figure 9 is a diagram illustrating an electrode heating element according to another embodiment of the present invention, Figure 10 and Figure 11 This is an appearance diagram of an electrode heating element according to another embodiment of the present invention.

[0070] refer to Figures 7 to 9 According to another embodiment of the present invention, the electrode heating element 100 may include a central conductor 110, an inner conductor 120, an outer conductor 130, an upper cover 140 and a lower cover 150.

[0071] According to another embodiment of the present invention, the central conductor 110, the internal conductor 120, and the external conductor 130 of the electrode heating element 100 are composed of conductors. More specifically, they can be composed of conductive materials such as stainless steel, aluminum, copper, brass alloy, brass, bronze, and carbon.

[0072] According to another embodiment of the present invention, the central conductor 110 is composed of a conductor connected to a positive (+) power supply, the inner conductor 120 inside the central conductor 110 can be connected to a negative (-) power supply, and the outer conductor 130 outside the central conductor 110 can also be connected to a negative (-) power supply and can be composed of a negative (-) conductor.

[0073] At this time, the inner conductor 120 is arranged to form a gap on the inner side of the central conductor 110, and the outer conductor 130 is arranged to form a gap on the outer side of the central conductor 110, so that the central conductor 110 with the positive (+) pole and the inner conductor 120 and the outer conductor 130 with the negative (-) pole are insulated from each other.

[0074] At this time, according to Figures 7 to 11 The electrode heating element 100 of the embodiment can be configured to have a rectangular appearance.

[0075] Specifically, the central conductor 110 may include a first main portion 111 in the shape of a square ring; a first conductive portion 112 in the shape of a plate and a rod, extending from the first main portion 111 and connected to a positive (+) power supply. The outer conductor 130 may include a second main portion 131 disposed outside the first main portion 111 with a gap formed therebetween; and a second conductive portion 132 extending from the second main portion 131 and connected to a negative (-) power supply.

[0076] In addition, the internal conductor 120 may be formed in a rod-shaped integral or separate type on the surface of the upper cover and connected to a negative (-) power supply.

[0077] Furthermore, the electrode heating element 100 according to an embodiment of the present invention may further include an upper cover 140 and a lower cover 150 .

[0078] The surface of the upper cover 140 is formed with multiple inflow holes 141 for water to flow in, and the upper cover 140 is combined with one side of the external conductor 130. The surface of the lower cover 150 is also formed with multiple inflow holes 151 for water to flow in easily, and the lower cover 150 can be combined with the other side of the external conductor 130.

[0079] Thus, the upper cover 140 and the lower cover 150 are coupled to each other to accommodate the central conductor 110 , the inner conductor 120 , and the outer conductor 130 .

[0080] In this way, according to another embodiment of the present invention, the electrode heating element 100 is composed of a plate-shaped central conductor 110 with a predetermined thickness, an internal conductor 120, an external conductor 130, an upper cover 140 and a lower cover 150. By surrounding the central conductor 110 as a positive (+) conductor with the internal conductor 120, the external conductor 130, the upper cover 140 and the lower cover 150 as negative (-) conductors, the thickness of the electrode heating element 100 can be minimized while effectively heating water.

[0081] On the other hand, according to an embodiment of the present invention, a coating such as a diamond-like carbon film DLC (Diamond Like Carbon) is formed on each surface of the electrode heating element 100, which can be energized while protecting the internal electrodes to prevent the generation of floating matter.

[0082] In addition, reference Figure 10 and Figure 11 According to another embodiment of the present invention, the electrode heating element 100 can be structured so as to be powered by a power supply unit (not shown) via a power connector 101 that accommodates the first power supply portion 112 and the second power supply portion 132 .

[0083] Figure 12 is a top view of an electrode heating element according to another embodiment of the present invention, Figure 13 is a cross-sectional view of an electrode heating element according to another embodiment of the present invention.

[0084] according to Figure 12 and Figure 13 The electrode heating element 100 of the embodiment may include a central conductor 110 , an inner conductor 120 , and an outer conductor 130 .

[0085] The central conductor 110 is connected to a positive (+) power supply, the inner conductor 120 and the outer conductor 130 are connected to a negative (−) power supply, and the central conductor 110 is insulated from the inner conductor 120 and the outer conductor 130 .

[0086] At this time, the central conductor 110 can be configured as a cylindrical structure with a plurality of inflow holes formed on its surface for water to flow in; the internal conductor 120 can be configured as a rod or cylindrical shape inserted into the inner side of the central conductor 110; the external conductor 130 can be configured as a cylindrical structure with a plurality of inflow holes formed on its surface for water to flow in and accommodate the central conductor 110.

[0087] In addition, an upper cover 140 having a plurality of water inflow holes may be formed on the upper portion. In this case, the internal conductor 120 may be integrally formed on the surface of the upper cover 140 or may be formed in a separate and coupled structure.

[0088] Figure 14 FIG. 1 is a diagram illustrating an electrode heating element according to another embodiment of the present invention.

[0089] according to Figure 14 The electrode heating element 100 of the embodiment may include a central conductor 110 and an inner conductor 120 .

[0090] In this case, the central conductor 110 may be formed in a ring shape or a plate ring shape, and the inner conductor 120 may be configured in a rod shape or a cylindrical shape inserted into the inner side of the central conductor 110 .

[0091] In addition, the upper portion may be combined with an upper cover 140 having a plurality of water inflow holes. In this case, the internal conductor 120 may be integrally formed on the surface of the upper cover 140 or may be formed in a separate and combined structure.

[0092] Figure 15 and Figure 16 FIG. 1 is a diagram illustrating an electrode heating element according to another embodiment of the present invention.

[0093] according to Figure 15 and Figure 16The electrode heating element 100 of the embodiment may include a central conductor 110 , an inner conductor 120 , and an outer conductor 130 .

[0094] The central conductor 110 is connected to a positive (+) power supply, the inner conductor 120 and the outer conductor 130 are connected to a negative (−) power supply, and the central conductor 110 is insulated from the inner conductor 120 and the outer conductor 130 .

[0095] At this time, the central conductor 110 can be composed of a cylindrical structure with a plurality of inflow holes formed on the surface for the flow of water; the internal conductor 120 can be composed of a rod-shaped or cylindrical structure inserted into the inner side of the central conductor 110; the external conductor 130 can be composed of a cylindrical structure with a plurality of inflow holes formed on the surface for the flow of water to accommodate the central conductor 110.

[0096] Therefore, according to Figure 15 and Figure 16 In the electrode heating element 100 of the embodiment, each of the central conductor 110 and the internal conductor 120 constitutes a plurality of heating structures (A), which can heat water more efficiently.

[0097] In addition, if Figure 16 As shown, auxiliary conductors 160 are provided in the spaces between the plurality of heating structures (A), so that water can be heated more efficiently.

[0098] Alternatively, the upper portion may be further coupled to an upper cover having a plurality of water inlet holes. In this case, the inner conductor 120 may be integrally formed on the surface of the upper cover or may be separated and coupled. Similarly, a lower cover having a plurality of water inlet holes may be further coupled to the lower portion of the outer conductor 130.

[0099] As another structure related to the above structure, it is possible to adopt Figure 17 and Figure 18 The electrode heating element structure of another embodiment of the present invention is shown in FIG. Figure 17 and Figure 18 In the structure, in addition to the hole at the bottom, the electrode outside the negative (-) pole has two holes on both sides of its side (in this case, there may be one hole on the side, or there may be more than three holes), which is to optimize the structure of water flow.

[0100] That is, reference Figure 17 and Figure 18 In the electrode heating element 100 according to an embodiment of the present invention, the central conductor 110 includes: a first main body portion 111 in a plate-like square ring shape; and a first power-carrying portion 112, which is protrudingly formed on one side of the first main body portion 111 and is connected to either a positive (+) power supply or a negative (-) power supply.

[0101] In addition, the inner conductor 120 is formed in a rod-like shape in an integral or separate manner in the center portion of the surface of the outer conductor 130 and can be connected to the other power source of the positive (+) power source and the negative (-) power source.

[0102] In addition, a plurality of inflow holes for water to flow in are formed around the position where the internal conductor 120 is formed on the surface of the external conductor 130. The external conductor 130 may include: a second main body 131, which accommodates the first main body 111 and is arranged to form a gap on the outside of the first main body 111; and a second power-conducting portion 132, which is protrudingly formed on one side of the second main body 131 and is connected to the other power source between the positive (+) power supply and the negative (-) power supply.

[0103] As described above, the electrode heating element according to an embodiment of the present invention uses a plate-shaped conductor to minimize the thickness of the heating element and make it compact. The structure in which the negative (-) conductor surrounds the positive (+) conductor enables efficient water heating. In contrast to conventional electrode heating elements that simply have a single layer structure of a positive (+) electrode and a negative (-) electrode, the electrode heating element according to one embodiment of the present invention has a multilayer structure in which an inner conductor, serving as a negative (-) electrode, and an outer conductor surround a central conductor, serving as a positive (+) electrode, and a top cover and a bottom cover, thereby enabling more efficient water heating.

[0104] In addition, the electrode heating element according to the embodiment of the present invention allows water to flow in easily through the inflow holes formed on the upper cover and the lower cover on both sides, and the contact area between the water and the electrode is maximized through the detachable or integrated sandwich structure of the upper cover and the lower cover, so that water can be heated more efficiently.

[0105] Figure 19 and Figure 20 2. It is a diagram showing a leakage controller related to a control current of an electrode heating element according to the present invention.

[0106] Generally speaking, in the case of AC current, the + and - phases will present a wave parabola graph that changes continuously up and down. If the grounding is not good, electric shock problems may occur.

[0107] However, by using three phases or including a neutral wire, problems caused by phase changes can be eliminated, but even in this case, if the +- of the product and the +- of the electricity are different, leakage may occur, and there is a risk of electric shock due to leakage.

[0108] In particular, in the case of electrode heating element products where the electrode body enters water and electrolyzes the water, causing the molecular structure in the water to deform or vibrate, or collide to generate heat, problems caused by leakage current may be greater.

[0109] Therefore, in order to solve the leakage current problem in electrode heating element products, the present invention eliminates the leakage current by automatically detecting the leakage current situation and converting it into an inverted circuit system. Moreover, if such leakage problem continues to occur, the system will be automatically shut down to ensure safety.

[0110] exist Figure 19 In the leakage phase controller, normally, when the terminal L and the terminal N are normally connected to the heater, no leakage current flows. Figure 20 In the reverse phase shown, when terminals L and N are abnormally connected (reverse phase), leakage current occurs, and the zero-sequence current transformer (ZCT) is used to detect leakage.

[0111] refer to Figure 21 and Figure 22 The operation process of the AC phase controller of the present invention is as follows: 1) using a zero-sequence current transformer (ZCT) to detect leakage current, 2) if the leakage current is above 1 mA, operating the reverse phase relay to make it normal and eliminate the leakage current, 3) if continuous attempts are still unsuccessful, all power supplies will be turned off.

[0112] Figures 23 to 28 1 and 2 are diagrams illustrating an electrode heating element device according to an embodiment of the present invention.

[0113] refer to Figures 23 to 28 The electrode heating device 200 includes: a device housing 210; an electrode heating element 100, which is accommodated and arranged inside the device housing; and a control board 220, which supplies power to the electrodes of the heating element to control the heating operation of the electrode heating element.

[0114] Here, the electrode heating element 100 can be used according to the Figures 1 to 18 The electrode heating element of each embodiment. Figure 17 and Figure 18 Take the electrode heating element with morphological setting as an example.

[0115] In addition, the electrode heating device 200 according to the embodiment of the present invention may include the Figures 19 to 22 To this end, the control board 220 may include: an electrode heating element circuit portion, in order to supply power to the electrode of the electrode heating element; a leakage current detector (such as the zero sequence current transformer (ZCT) described above), which detects the leakage current of the electrode heating element circuit portion; an AC phase controller, which operates the reverse phase relay to eliminate the leakage current based on the leakage current detection. At this time, the power supply can be its own power supply or it can be supplied through an external power supply cable (refer to Figure 23 cable) supplied.

[0116] In an embodiment of the present invention, the device housing 210 may include: a accommodating space 203 for accommodating the electrode heating element 100 at the center inner side of the bottom 210-2 of the housing; a cover plate 205, configured to close the accommodating space 203 of the bottom 210-2 of the housing, and having a plurality of water inflow holes on the plate surface; a plurality of channels 208, arranged in the form of grooves around the cover plate in the bottom 210-2 of the housing (in this case, located on the four sides of the cover plate), and connected to the accommodating space.

[0117] In this case, applying the groove described above to the part of the electrode heating element that heats water can make the water more dispersed, and when the hot water is gathered, it will be pressurized, and water droplets will be generated according to the groove described above (in this figure, it is an arc-shaped groove), which can help water circulation.

[0118] In addition, the embodiment of the present invention may further include one or more convection devices 230 arranged on the side wall 210-3 or the bottom 210-2 of the device housing 210, for promoting the outward propagation of heat generated by the electrode heating element 100.

[0119] At this time, the control board 220 may include a driving circuit for controlling the operation of the convection device 230. In addition, the convection device 230 includes at least an ultrasonic generator (refer to Figure 27 ), high frequency generator, bubble generator (ie, inflator, refer to Figure 28 ), one of an air pump, a water pump and a propeller. In addition, of course, various convection devices that cause fluid convection can also be used. Figure 27 The ultrasonic generator is shown as an example of a convection device, wherein the ultrasonic generator can be composed of an ultrasonic vibrator 230a and a vibration plate 230b. Here, the vibration plate 230b plays the role of diffusing the ultrasonic waves generated by the ultrasonic vibrator 230a outward. In addition, Figure 28 The figure shows an example of a bubble generator. In this case, a porous plate prevents external water from entering the interior and allows the generated bubbles to be discharged to the outside.

[0120] As described above, the addition of convection device 230 causes convection in the water heated by the electrode heating element, or circulates the water due to the generation of bubbles, thereby increasing the overall temperature of the water more rapidly. Specifically, in the present invention, the electrode heating element activates and ionizes water molecules, generating heat through intermolecular collisions. This heat is generated most intensely near the area in contact with the water, which gradually spreads out. In a short period of time, only a very small area near the water becomes heated. Therefore, the placement of convection device 230 ensures that the hot water is thoroughly mixed.

[0121] In addition, in the embodiment of the present invention, the overall shape of the device housing 210 has the appearance of a ship, and can be made to have a specific gravity and volume within a range that allows the upper portion of the housing to float on the water surface. However, in the present invention, there is no particular limitation on the shape of the device housing.

[0122] In addition, in an embodiment of the present invention, a visual indicator (refer to FIG. 2 ) for confirming the operating status of the electrode heating element according to the operation control of the control panel can be provided on the upper surface 210-1 of the device housing 210. Figure 23 However, the installation position of the visual indicator is not limited thereto, and can of course be diversified to the side wall of the housing, the bottom of the housing, etc.

[0123] Although the present invention has been described above with reference to the embodiments thereof, it will be readily apparent to those skilled in the art that various modifications and variations may be made to the present invention without departing from the spirit and scope of the invention as described in the appended claims.

Claims

1. An electrode heating device, comprising: Equipment housing; an electrode heating element, housed and arranged inside the device housing, comprising a central conductor, an inner conductor arranged inside the central conductor and forming a gap, and an outer conductor arranged outside the central conductor and forming a gap; A control board is housed and arranged inside the device housing, and controls the heating operation of the electrode heating element by supplying power to the electrodes of the electrode heating element. The central conductor includes: a first main body portion in a plate-shaped ring shape; and a first power supply portion formed protrudingly on one side of the first main body portion and connected to either a positive (+) power supply or a negative (-) power supply. The inner conductor is formed in a rod-like shape integrally formed at the center of the outer conductor surface, thereby connecting the other power source of the positive (+) power source and the negative (-) power source. The external conductor includes: a second main body portion, a plurality of water inflow holes formed around a portion of the surface of the external conductor where the internal conductor is formed, the second main body portion accommodating the first main body portion and provided with a gap formed outside the first main body portion; and a second power supply portion protrudingly formed on one side of the second main body portion so as to connect the other power source of the positive (+) power source and the negative (-) power source. The device shell includes: a accommodating space for accommodating the electrode heating element on the inner side of the bottom center of the shell; a cover plate, arranged to close the accommodating space at the bottom of the shell, and having multiple water inflow holes on the plate surface; and multiple channels, arranged in the form of grooves around the cover plate in the bottom of the shell, and connected to the accommodating space.

2. The electrode heating device according to claim 1, characterized in that: The control board includes: a circuit unit for supplying power to the electrode of the electrode heating element; a leakage current detector for detecting leakage current of the circuit portion of the electrode heating element; and an AC phase controller for eliminating leakage current by operating an inverting relay according to the detection of the leakage current detector.

3. The electrode heating device according to claim 1, characterized in that: It also includes at least one convection device, which is arranged on the side wall or bottom of the device housing and is used to promote the outward propagation of heat generated by the electrode heating element.

4. The electrode heating device according to claim 3, characterized in that: The control board includes a drive circuit for controlling the operation of the convection device; The convection device includes at least one of an ultrasonic generator, a high-frequency generator, a bubble generator, an air pump, a water pump and a propeller.

5. The electrode heating device according to claim 1, characterized in that: The overall shape of the device shell has the appearance of a ship, and is made so that the specific gravity and volume are within the range that the upper part of the shell can float on the water surface. The device housing is provided with a visual indicator that can confirm the operating status of the electrode heating element according to the operation control of the control panel.

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