Arc-type water heater
By using an electric arc heating structure, an electric arc is generated by an insulating ceramic plate and an electrode assembly to heat the hot water pipe, which solves the problems of increased current and complex equipment in existing resistance heaters when heating at high temperatures. This achieves the effect of rapid high-temperature water heating with a simple structure and low cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN CHUANGXINGHUANG TECHNOLOGY CO LTD
- Filing Date
- 2025-01-09
- Publication Date
- 2026-07-07
AI Technical Summary
Existing resistance heating electric-to-heat converters suffer from problems such as increased current, insufficient heating power, complex equipment, and high cost when heating at high temperatures, making it difficult to achieve rapid heating of large-volume, high-temperature instantaneous hot water.
It adopts an electric arc heating structure, which uses an insulating ceramic plate and an electrode assembly to generate an electric arc for heating. The electric arc heater includes an anode electrode and a cathode electrode. The insulating ceramic plate has insulating and thermally conductive properties. The electrode assembly generates an electric arc and heats the hot water pipe. The structure is simple, and the electric arc is generated without a medium, avoiding short circuits and leakage.
It achieves rapid generation of high-temperature heated water. The electric arc heater has a simple structure, low cost, and long service life. It can quickly heat water, avoid damage to the medium, and improve heating efficiency.
Smart Images

Figure CN224470423U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric arc heating technology, and in particular to an electric arc heating water heater. Background Technology
[0002] In industrial or commercial applications requiring large quantities of high-temperature hot water, centralized boiler heating is slow and unsuitable for urgent needs, and its poor heat retention leads to significant energy waste during the heating process. Traditional instant water heaters, which use piped water heating, require a high-efficiency electro-thermal converter. However, resistive heating electro-thermal converters have a characteristic: if long-term high-temperature heating is required without the resistance wire melting, the cross-section of the resistance wire needs to be increased. Based on the electrical conductivity of metals, the cross-section of the resistance wire is inversely proportional to its resistance. Increasing the cross-section reduces the resistance, resulting in a larger current and a proportionally amplified heating power. To control the current, the length of the resistance wire needs to be increased. Because instant water heaters have a high water flow rate in their pipes, and ordinary resistance wires can hardly convert high-power heat into a small volume, a large or multi-stage electric heat exchanger is needed to extend the water heating distance. This process is complex and costly, and the heat exchanger itself also requires a large amount of electrical energy to heat up. Therefore, the electric heat exchangers currently used for resistance heating are not efficient enough to achieve high-volume, high-temperature instant hot water. A simple electric heat exchanger with high efficiency, high power, and high-temperature characteristics is needed to heat large volumes of water.
[0003] In conclusion, the existing structure obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content
[0004] In view of the above-mentioned defects, the purpose of this utility model is to provide an electric arc heating water heater that can quickly generate high temperature to heat water, and is low in cost and has a long service life.
[0005] To achieve the above objectives, this utility model provides an electric arc heating water heater, including an electric arc heater and a hot water pipe coiled around the outside of the electric arc heater; the electric arc heater includes an insulating ceramic plate and an electrode assembly.
[0006] The insulating ceramic plate is rectangular and includes multiple electrode mounting tubes. Each electrode mounting tube has a through electrode mounting hole along its longitudinal direction. The multiple electrode mounting tubes are arranged sequentially in the transverse direction and are integrally formed.
[0007] The electrode group includes an anode electrode and a cathode electrode; the anode electrode and the cathode electrode in each electrode group are respectively disposed at both ends of the electrode mounting hole; there is a preset distance between the anode electrode and the cathode electrode in each electrode group.
[0008] The electric arc heating water heater further includes a housing body, which includes a first heat-insulating housing and a second heat-insulating housing; the first heat-insulating housing is connected to the second heat-insulating housing; a heating cavity is formed between the interior of the first heat-insulating housing and the interior of the second heat-insulating housing, and the electric arc heater and the hot water pipe are disposed in the heating cavity; the first heat-insulating housing and the second heat-insulating housing have openings; the two ends of the hot water pipe are an inlet end and an outlet end, respectively, and the inlet end and the outlet end extend out from the openings.
[0009] According to the electric arc heating water heater, a first circuit board is provided on the first heat insulation shell to isolate the heating cavity; a second circuit board is provided on the second heat insulation shell to isolate the heating cavity.
[0010] The first circuit board is electrically connected to the anode electrode via a first spring pin;
[0011] The second circuit board is electrically connected to the cathode electrode via a second spring pin.
[0012] According to the electric arc heating water heater, one end of the electrode mounting tube is provided with a first spring pin mounting tube adapted to the first spring pin, and the first spring pin mounting tube is connected to the electrode mounting tube; the first spring pin mounting tube is made of insulating material.
[0013] The other end of the electrode mounting tube is provided with a second spring pin mounting tube adapted to the second spring pin, and the second spring pin mounting tube is connected to the electrode mounting tube; the second spring pin mounting tube is made of insulating material.
[0014] According to the electric arc heating water heater, the middle part of the electrode mounting hole has an inwardly protruding, hollow boss; the two ends of the boss abut against the anode electrode and the cathode electrode, respectively.
[0015] According to the electric arc heating water heater, the end of the anode electrode facing the cathode electrode is conical; the end of the cathode electrode facing the anode electrode is conical.
[0016] According to the electric arc heating water heater, the hot water pipe is securely installed on the outside of the electric arc heater by casting thermally conductive aluminum.
[0017] According to the electric arc heating water heater, the insulating ceramic plate is an alumina ceramic plate.
[0018] According to the aforementioned electric arc heating water heater, the hot water pipe is made of metal.
[0019] According to the aforementioned arc-heated water heater, the anode electrode is made of graphite material;
[0020] The cathode electrode is made of graphite material.
[0021] This utility model discloses an electric arc-type heating water heater that achieves electric arc heating. The electric arc can generate high temperatures exceeding 1000 degrees Celsius, and the temperature release is rapid, allowing for quick water heating. The generation of the electric arc does not require a connected medium; only the anode and cathode electrodes are needed to discharge and generate the arc, avoiding damage to the medium and thus extending the service life. Specifically, the electric arc-type heating water heater includes an electric arc heater and a hot water pipe. The electric arc heater rapidly heats the hot water in the hot water pipe coiled around its outer side. The electric arc heater includes an insulating ceramic plate and an electrode assembly. The insulating ceramic plate is cuboid in shape and includes multiple electrode mounting tubes integrally formed, resulting in a simple structure. The electrode mounting tubes have electrode mounting holes for mounting the electrode assemblies. Multiple electrode assemblies are respectively arranged in multiple electrode mounting holes, generating multiple electric arcs that simultaneously heat the hot water pipe, increasing the speed of water heating. Each electrode assembly includes an anode electrode and a cathode electrode; the anode electrode and cathode electrode in each electrode assembly are respectively located at both ends of the electrode mounting hole. The insulating ceramic plate has insulating properties, preventing leakage of electricity to the hot water pipe and short circuits between the anode and cathode electrodes located inside. A predetermined distance exists between the anode and cathode electrodes. When energized, an electric arc is generated between the anode and cathode electrodes, located within the electrode mounting holes. Because the insulating ceramic plate is opaque, it prevents the strong light emitted by the arc from escaping and also reduces the sound of the arc. Therefore, this arc-heated water heater can quickly generate temperatures exceeding 1000 degrees Celsius, rapidly heating the hot water pipe attached to its outer surface. It also features a simple structure, low cost, and long service life. Attached Figure Description
[0022] Figure 1 This is an exploded structural diagram of an arc-heated water heater according to an embodiment of the present invention;
[0023] Figure 2 This is one of the structural schematic diagrams of an arc-heated water heater provided in one embodiment of this utility model;
[0024] Figure 3This is a second schematic diagram of the structure of an arc-heated water heater provided in one embodiment of this utility model;
[0025] Figure 4 yes Figure 3 Side sectional view;
[0026] Figure 5 yes Figure 3 Top sectional view;
[0027] Figure 6 This is a schematic diagram of the electrode mounting tube of an arc-heated water heater according to an embodiment of the present invention.
[0028] Figure 7 This is a three-dimensional structural schematic diagram of the insulating ceramic plate of an arc-heated water heater provided in an embodiment of the present invention;
[0029] Figure 8 This is a front view of the insulating ceramic plate of an arc-heated water heater provided in one embodiment of the present invention. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0031] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0032] See Figures 1 to 8 In one embodiment of the present invention, an electric arc heating water heater 100 is provided, including an electric arc heater 10 and a hot water pipe 20 coiled around the outside of the electric arc heater 10; the electric arc heater 10 includes an insulating ceramic plate 11 and an electrode assembly 12.
[0033] The insulating ceramic plate 11 is rectangular; the insulating ceramic plate 11 includes multiple electrode mounting tubes 111, and the interior of the electrode mounting tubes 111 is provided with through electrode mounting holes 112 along the longitudinal direction; the multiple electrode mounting tubes 111 are arranged sequentially in the transverse direction and integrally formed.
[0034] The electrode group 12 includes an anode electrode 121 and a cathode electrode 122; the anode electrode 121 and the cathode electrode 122 in each electrode group 12 are respectively disposed at both ends of the electrode mounting hole 112; there is a preset distance between the anode electrode 121 and the cathode electrode 122 in each electrode group 12.
[0035] In this embodiment, arc heating can quickly generate high temperatures and conduct heat to the hot water pipe 20, rapidly heating the water in the pipe 20. Optionally, the hot water pipe 20 is made of metal to facilitate heat conduction to the water inside. This arc heater 10 can achieve arc heating, generating temperatures above 1000 degrees Celsius with rapid temperature release. The arc does not require a connecting medium; only the anode electrode 121 and cathode electrode 122 are needed to discharge and generate the arc, avoiding the problem in existing technologies where the connecting medium is damaged at high temperatures, causing the heater to malfunction. Specifically, the arc heater 10 includes an insulating ceramic plate 11, which is insulating, preventing leakage to the hot water pipe 20 and short circuits between the anode electrode 121 and cathode electrode 122 located inside. The insulating ceramic plate 11 also has high temperature resistance and thermal conductivity, a long service life, and can conduct the high temperature of the arc to the hot water pipe 20, thereby rapidly heating the water in the pipe 20. Specifically, the insulating ceramic plate 11 includes multiple electrode mounting tubes 111, and the electrode group 12 is provided with multiple electrode mounting tubes 111 corresponding to the multiple electrode mounting tubes 111. Each electrode mounting hole 112 has an anode electrode 121 and a cathode electrode 122 fastened to both ends respectively. The anode electrode 121 and the cathode electrode 122 are arranged facing each other and have a certain distance between them so that multiple electric arcs can be generated in the electric arc heater 10. The heat generated by the multiple electric arcs can improve the heating speed of the electric arc heater 10 for hot water. The multiple electrode mounting tubes 111 are arranged in sequence and integrally formed to form a cuboid insulating ceramic plate 11. This not only has a simple structure that makes it easy for the hot water pipe 20 to be coiled on the insulating ceramic plate 11, but also allows the hot water pipe 20 to contact a larger area of the insulating ceramic plate 11 (both sides of the insulating ceramic plate 11 can be in contact), thereby improving the heating speed of the hot water pipe 20. When the anode electrode 121 and cathode electrode 122, located in the same electrode mounting tube 111, are energized, an electric arc is generated between them due to the gap between them, producing instantaneous high temperatures, which can reach over 1000 degrees Celsius. Optionally, graphite material can be used to make the anode electrode 121 and cathode electrode 122. This not only reduces cost but also allows the graphite-based anode electrode 121 and cathode electrode 122 to withstand temperatures up to 3000 degrees Celsius, preventing the electrodes from ceasing operation when the temperature reaches 1000 degrees Celsius.
[0036] As an optional embodiment, see Figures 1-3The electric arc heating water heater 100 also includes an outer shell body 30, which includes a first heat-insulating shell 31 and a second heat-insulating shell 32. The first heat-insulating shell 31 and the second heat-insulating shell 32 are connected. A heating cavity 33 is formed between the interior of the first heat-insulating shell 31 and the interior of the second heat-insulating shell 32. The electric arc heater 10 and the hot water pipe 20 are disposed in the heating cavity 33. The first heat-insulating shell 31 and the second heat-insulating shell 32 have openings 34. The two ends of the hot water pipe 20 are an inlet end 21 and an outlet end 22, respectively, which extend out from the openings 34.
[0037] In this embodiment, the heating chamber 33 of the outer casing 30 contains an arc heater 10 that generates heat and a hot water pipe 20 that needs to be heated. The outer casing 30 can insulate the arc heater 10 and the hot water pipe 20 located in its heating chamber 33, preventing excessive heat loss through conduction, and also providing protection against damage to the user caused by high temperatures. The hot water pipe 20 has an inlet end 21, which extends from an opening 34 for easy connection to an external water pipe. The hot water pipe 20 also has an outlet end 22, through which tap water connected to the hot water pipe 20 enters the hot water pipe 20 through the inlet end 21, is heated, and then flows out from the outlet end 22.
[0038] As an optional embodiment, see Figures 1-2 The first heat insulation shell 31 has a first circuit board 40 installed in the heating cavity 33; the second heat insulation shell 32 has a second circuit board 50 installed in the heating cavity 33.
[0039] The first circuit board 40 is electrically connected to the anode electrode 121 via the first spring pin 41;
[0040] The second circuit board 50 is electrically connected to the cathode electrode 122 via the second spring pin 51.
[0041] In this embodiment, the first circuit board 40 is fixed to the end of the first heat-insulating shell 31 away from the heating cavity 33. Optionally, a first heat-insulating baffle is provided between the heating cavity 33 and the first circuit board 40, and the first heat-insulating baffle has a first through hole adapted to the first spring pin 41. The second circuit board 50 is fixed to the end of the second heat-insulating shell 32 away from the heating cavity 33. Optionally, a second heat-insulating baffle is provided between the heating cavity 33 and the second circuit board 50, and the second heat-insulating baffle has a second through hole adapted to the second spring pin 51. The first circuit board 40 is connected to the anode electrode 121 via the first spring pin 41 and supplies power to it. The first circuit board 40 can supply power to multiple anode electrodes 121 simultaneously by setting multiple first spring pins 41. The second circuit board 50 is connected to the cathode electrode 122 via the second spring pin 51 and supplies power to it. The second circuit board 50 can supply power to multiple cathode electrodes 122 simultaneously by setting multiple second spring pins 51. When the anode electrode 121 and the cathode electrode 122 are energized, an electric arc is generated, thereby releasing high temperature instantly. Since the insulating ceramic plate 11 has thermal conductivity, it can effectively conduct heat to the hot water pipe 20 and heat the water therein.
[0042] As an optional embodiment, see Figure 6 One end of the electrode mounting tube 111 is provided with a first spring needle mounting tube 113 that is adapted to the first spring needle 41. The first spring needle mounting tube 113 is connected to the electrode mounting tube 111. The first spring needle mounting tube 113 is made of insulating material.
[0043] The other end of the electrode mounting tube 111 is provided with a second spring needle mounting tube 114 that is adapted to the second spring needle 51. The second spring needle mounting tube 114 is connected to the electrode mounting tube 111. The second spring needle mounting tube 114 is made of insulating material.
[0044] In this embodiment, since multiple electrode mounting tubes 111 are provided, multiple first spring pin mounting tubes 113 and multiple second spring pin mounting tubes 114 are also provided accordingly. Multiple first spring pins 41 pass through multiple first spring pin mounting tubes 113 and are electrically connected to the corresponding anode electrode 121. Multiple second spring pins 51 pass through multiple second spring pin mounting tubes 114 and are electrically connected to the corresponding cathode electrode 122. Since the first spring pin mounting tubes 113 and the second spring pin mounting tubes 114 are insulating, leakage of the first spring pins 41 and the second spring pins 51 can be avoided. In addition, the positions of the first spring pins 41 and the second spring pins 51 can be limited, and they can be stably connected to each anode electrode 121 and cathode electrode 122 respectively.
[0045] As an optional embodiment, see Figure 4 The electrode mounting hole 112 has an inwardly protruding, hollow boss 1121 in the middle; the two ends of the boss 1121 abut against the anode electrode 121 and the cathode electrode 122, respectively.
[0046] In this embodiment, the boss 1121 may be integrally formed with the electrode mounting tube 111. Because of the boss 1121, the anode electrode 121 and the cathode electrode 122 can be positioned to maintain a predetermined distance between them. Furthermore, since the boss 1121 has a hollow structure, an electric arc can be generated within it.
[0047] As an optional embodiment, see Figure 1 The end of the anode electrode 121 facing the cathode electrode 122 is conical; the end of the cathode electrode 122 facing the anode electrode 121 is also conical. Due to the pointed structure of the conical shape, an electric arc can be stably generated between the anode electrode 121 and the cathode electrode 122.
[0048] As an optional embodiment, see Figure 1 as well as Figure 4 The hot water pipe 20 is securely installed on the outside of the arc heater 10 by casting thermally conductive aluminum 60. Specifically, the hot water pipe 20 is first installed on the outer surface of the insulating ceramic plate 11, and then the thermally conductive aluminum 60 is cast on it to fix the hot water pipe 20. The heat from the insulating ceramic plate 11 can be effectively conducted to the hot water pipe 20 through the thermally conductive aluminum 60.
[0049] As an optional embodiment, the insulating ceramic plate 11 is an alumina ceramic plate.
[0050] In this embodiment, the alumina ceramic plate possesses properties such as insulation, thermal conductivity, high temperature resistance, extremely high hardness, and opacity. Therefore, since the anode electrode 121, cathode electrode 122, and the electric arc generated by both are all located inside the alumina ceramic plate, and the anode electrode 121 and cathode electrode 122 are securely connected to the inner wall of the electrode mounting tube 111 of the alumina ceramic plate, not only is the noise reduced, but the opacity of the alumina ceramic plate also prevents the strong light generated by the electric arc from escaping. Because the alumina ceramic plate possesses insulation and sufficient hardness, it can prevent cracking during use that could lead to leakage, thus extending its service life. Due to the high-temperature characteristics and thermal conductivity of the alumina ceramic plate, the heat generated by the electric arc can be conducted to the alumina ceramic plate, allowing the surface temperature of the alumina ceramic plate to reach temperatures exceeding 1000 degrees Celsius. Therefore, using an alumina ceramic plate effectively reduces the undesirable characteristics of the electric arc, such as noise, high brightness, high temperature, and poor conductivity, while efficiently utilizing its high-temperature properties.
[0051] In summary, this utility model of an arc-heated water heater achieves arc-type heating, with the arc generating temperatures exceeding 1000 degrees Celsius and releasing heat rapidly, quickly heating water. The arc generation requires no connecting medium; only the anode and cathode electrodes are needed to discharge and generate the arc, avoiding damage to the medium and thus extending the service life. Specifically, the arc-heated water heater includes an arc heater and a hot water pipe. The arc heater rapidly heats the hot water in the hot water pipe coiled around its outer side. The arc heater includes an insulating ceramic plate and electrode groups; the insulating ceramic plate is cuboid in shape and includes multiple electrode mounting tubes integrally formed, resulting in a simple structure. The electrode mounting tubes have electrode mounting holes for mounting electrode groups. Multiple electrode groups are respectively arranged in multiple electrode mounting holes, generating multiple arcs that simultaneously heat the hot water pipe, increasing the heating speed. Each electrode group includes an anode electrode and a cathode electrode; the anode electrode and cathode electrode in each electrode group are respectively located at both ends of the electrode mounting hole. The insulating ceramic plate has insulating properties, preventing leakage of electricity to the hot water pipe and short circuits between the anode and cathode electrodes located inside. A predetermined distance exists between the anode and cathode electrodes. When energized, an electric arc is generated between the anode and cathode electrodes, located within the electrode mounting holes. Because the insulating ceramic plate is opaque, it prevents the strong light emitted by the arc from escaping and also reduces the sound of the arc. Therefore, this arc-heated water heater can quickly generate temperatures exceeding 1000 degrees Celsius, rapidly heating the hot water pipe attached to its outer surface. It also features a simple structure, low cost, and long service life.
[0052] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.
Claims
1. An electric arc type water heater, characterized by comprising: The electric arc heater and the hot water pipe coiled outside the electric arc heater; the electric arc heater comprises an insulating ceramic plate and an electrode group; The insulating ceramic plate is cuboid; the insulating ceramic plate comprises a plurality of electrode mounting tubes, the interiors of the electrode mounting tubes are longitudinally provided with through electrode mounting holes; the electrode mounting tubes are arranged in sequence in the lateral direction and integrally formed; The electrode group comprises an anode electrode and a cathode electrode; the anode electrode and the cathode electrode in each electrode group are respectively arranged at the two ends of the electrode mounting hole; the anode electrode and the cathode electrode in each electrode group have a preset spacing.
2. The electric arc heating water heater according to claim 1, characterized in that Further comprising a shell body, the shell body comprises a first heat insulation shell and a second heat insulation shell; the first heat insulation shell is connected with the second heat insulation shell; the interior of the first heat insulation shell and the interior of the second heat insulation shell form a heating cavity, the electric arc heater and the hot water pipe are arranged in the heating cavity; The first heat insulation shell and the second heat insulation shell are formed with an opening; the two ends of the hot water pipe are respectively a water inlet end and a water outlet end, the water inlet end and the water outlet end extend out of the opening.
3. An electric arc heating water heater as claimed in claim 2 wherein, The first heat insulation shell is provided with a first circuit board isolating the heating cavity; the second heat insulation shell is provided with a second circuit board isolating the heating cavity; The first circuit board is electrically connected with the anode electrode through a first elastic pin; The second circuit board is electrically connected with the cathode electrode through a second elastic pin.
4. The electric arc heating water heater according to claim 3, characterized in that One end of the electrode mounting tube is provided with a first elastic pin mounting tube matched with the first elastic pin, the first elastic pin mounting tube communicates with the electrode mounting tube; the first elastic pin mounting tube is made of insulating material; The other end of the electrode mounting tube is provided with a second elastic pin mounting tube matched with the second elastic pin, the second elastic pin mounting tube communicates with the electrode mounting tube; the second elastic pin mounting tube is made of insulating material.
5. The electric arc heating water heater according to claim 1, wherein The middle part of the electrode mounting hole has a boss protruding inward and in a hollow structure; the two ends of the boss abut against the anode electrode and the cathode electrode respectively.
6. The electric arc heating water heater according to claim 1, wherein The end of the anode electrode facing the cathode electrode is conical; the end of the cathode electrode facing the anode electrode is conical.
7. The electric arc heating water heater according to claim 1, wherein The hot water pipe is fastened and mounted outside the electric arc heater by heat-conducting aluminum casting.
8. The electric arc heat water heater according to claim 1, wherein The insulating ceramic plate is an alumina ceramic plate.
9. The electric arc heating water heater according to claim 1, wherein The hot water pipe is made of metal material.
10. The electric arc heating water heater according to claim 1, wherein The anode electrode is made of graphite material; The cathode electrode is made of graphite material.