Amorphous alloy heating structure and instant water heater

Abstract

The utility model belongs to the technical field of heating, and particularly relates to an amorphous alloy heating structure and an instant water heater. The amorphous alloy heating structure comprises a heat conduction pipe and a heating belt which is made of an amorphous alloy material and has a preset width, the heat conduction pipe is provided with a heating hole used for containing a target object, the heating hole extends in the length direction of the heat conduction pipe, and the heating belt is wound around the heat conduction pipe in the circumferential direction and wound by multiple circles in the length direction of the heat conduction pipe. When the heating tape is in a conductive state or in a changing magnetic field, the heating tape generates heat and conducts the heat to the heat conduction pipe so as to heat a target object. According to the utility model, heat is rapidly generated based on Joule's law when the heating tape is in a power-on state or in a changing magnetic field, the heating response is fast, heat is efficiently conducted to a target object through the heat conduction pipe, and the heating efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of heating technology, and in particular relates to an amorphous alloy heating structure and an instantaneous water heater. Background Technology

[0002] Amorphous materials, as an emerging type of functional material, have shown broad application prospects in various fields in recent years. Their unique disordered atomic arrangement structure gives them superior electromagnetic properties, thermal conductivity, and mechanical strength compared to traditional crystalline materials, especially in energy conservation and emission reduction. Traditional amorphous materials are mainly used in power equipment, such as transformer cores, magnetic shielding, and electronic components, where their high permeability and low loss characteristics can effectively reduce power loss and improve transformer operating efficiency.

[0003] However, with the development of materials science and engineering technology, the application range of amorphous materials is gradually expanding, and one of the most promising directions is high-efficiency heating technology. Compared with traditional heating materials, such as resistance wires, which rely on current to directly generate Joule heat, resistance wires have relatively low thermal efficiency, slow heating rate, low heating response, and are prone to oxidation and aging after long-term operation, affecting their service life. Utility Model Content

[0004] The purpose of this application is to provide an amorphous alloy heating structure that aims to solve the problem of how to improve heating efficiency.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0006] In a first aspect, an amorphous alloy heating structure is provided for heating a target object. The amorphous alloy heating structure includes: a heat-conducting pipe and a heating tape made of amorphous alloy material and having a predetermined width. The heat-conducting pipe has a heating hole for receiving the target object, the heating hole extending along the length direction of the heat-conducting pipe. The heating tape is arranged circumferentially around the heat-conducting pipe and is wound multiple times along the length direction of the heat-conducting pipe. When the heating tape is in a conductive state or when the heating tape is in a changing magnetic field, the heating tape generates heat and conducts the heat to the heat-conducting pipe to heat the target object.

[0007] In some embodiments, the heat-generating heating element is arranged in a spiral shape along the length of the heat-conducting pipe.

[0008] In some embodiments, the pitch of the heating element is a fixed value, or the pitch of the heating element gradually decreases along the length of the heat-conducting pipe.

[0009] In some embodiments, the heating tape is ring-shaped, and multiple heating tapes are arranged at intervals along the length of the heat-conducting pipe.

[0010] In some embodiments, the heat-generating heating elements are arranged at equal intervals along the length of the heat-conducting pipe, or the spacing between the heat-generating heating elements gradually decreases along the length of the heat-conducting pipe.

[0011] In some embodiments, a heat-conducting layer is provided on the side of the heating element facing the heat-conducting pipe, and the heat-conducting layer abuts against the side surface of the heat-conducting pipe.

[0012] In some embodiments, an insulation layer is provided on the surface of the heating tape facing away from the heat-conducting pipe.

[0013] In some embodiments, the thickness of the heating element ranges from 20 μm to 30 μm.

[0014] In some embodiments, the bandwidth of the heating element ranges from 50mm to 100mm.

[0015] Secondly, an instantaneous water heater is provided, which includes the amorphous alloy heating structure, the instantaneous water heater also includes a water tank, one end of the heat-conducting pipe is connected to the water tank, and the other end of the heat-conducting pipe is connected to the heating element.

[0016] The beneficial effects of this application are as follows: by wrapping a heating tape made of amorphous alloy material around a heat pipe circumferentially and arranging it in multiple turns along its length, the high electrical and thermal conductivity of the amorphous alloy is fully utilized. The heating tape rapidly generates heat based on Joule's law when energized or in a changing magnetic field, resulting in a fast heating response. This heat is then efficiently conducted to the target object through the heat pipe, improving heating efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or exemplary technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the spiral-shaped three-dimensional structure of the heating element of the amorphous alloy heating structure provided in the embodiments of this application;

[0019] Figure 2 This is a schematic diagram of the ring-shaped three-dimensional structure of the heating element of the amorphous alloy heating structure provided in another embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the ring-shaped three-dimensional structure of the heating element of the amorphous alloy heating structure provided in the embodiments of this application;

[0021] Figure 4This is a schematic diagram of the control principle of an instantaneous water heater provided in another embodiment of this application;

[0022] Figure 5 This is a temperature rise curve diagram of the heating element and heat pipe provided in another embodiment of this application;

[0023] Figure 6 This is a temperature rise curve diagram of the heating element and heat pipe provided in another embodiment of this application.

[0024] The following are the labeling elements in the figure:

[0025] 100. Amorphous alloy heating structure; 10. Heat pipe; 101. First end; 102. Second end; 103. Heating hole; 20. Heating tube; 30. Temperature sensor; 40. Thermostat. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0027] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly or indirectly attached to that other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, and are for ease of description only, not to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality" means two or more, unless otherwise explicitly defined.

[0028] To address the problems of low heating efficiency and slow heating rate of existing resistance wire heating materials, this application provides an amorphous alloy heating structure 100. The amorphous alloy heating structure 100 can be used to heat a target object, which can be a solid or a liquid. The solid can be plastic or resin, and the liquid can be water, oil, or other mixed solutions. In this application embodiment, the target object is tap water; in other embodiments, the appropriate object can be selected based on actual conditions, and no limitation is made here.

[0029] Please see Figures 1 to 3The amorphous alloy heating structure 100 includes a heat-conducting pipe 10 and a heating tape 20 made of amorphous alloy material and having a predetermined width. The heat-conducting pipe 10 is elongated and has heating holes 103 for accommodating the target object, the heating holes 103 extending along the length of the heat-conducting pipe 10. The heating tape 20 is an amorphous strip material with a certain degree of flexibility and elasticity, allowing it to be wound circumferentially around the heat-conducting pipe 10 and wound multiple times along the length of the heat-conducting pipe 10. The multiple-turn arrangement of the heating tape 20 increases the heating area of ​​the heat-conducting pipe 10. The two ends of the heating tape 20 are connected to the positive and negative terminals of a power source, respectively. When the heating tape 20 is conductive or in a changing magnetic field, it generates heat and conducts the heat to the heat-conducting pipe 10 to heat the target object.

[0030] It is understandable that amorphous alloys have the characteristics of high magnetic permeability, low coercivity and high electrical conductivity. In the conductive state, they can generate heat rapidly and have a relatively high thermal effect. After being energized, they can heat up rapidly within milliseconds, with a fast thermal response speed, thus enabling the target object to be heated quickly.

[0031] Of course, when the heating zone 20 is in a constantly changing magnetic field, the magnetic flux passing through it changes constantly because the heating zone 20 has a certain width. Since the amorphous alloy heating zone 20 has low coercivity, eddy currents can be quickly generated in the heating zone 20, and current can be generated through the eddy currents, thereby heating the target object.

[0032] Meanwhile, the low heat capacity and thin-layered band structure of amorphous alloys result in extremely short thermal response times, enabling the target object to be heated within seconds.

[0033] Please see Figures 1 to 3 The amorphous alloy heating structure 100 provided in this application embodiment fully utilizes the high electrical and thermal conductivity of amorphous alloys by circumferentially winding a heating tape 20 made of amorphous alloy material around a heat-conducting pipe 10 and arranging it in multiple turns along the length direction. The heating tape 20 rapidly generates heat based on Joule's law when energized or in a changing magnetic field, resulting in a fast heating response. This heat is efficiently conducted to the target object through the heat-conducting pipe 10, thus improving heating efficiency.

[0034] It is understood that the heat pipe 10 can be made of plastic or metal. The plastic can be copolymer polypropylene (Polypropylene-Random). The metal can be stainless steel or copper. In this embodiment, the heat pipe 10 is made of copper, which has high thermal conductivity and can quickly receive heat from the heating element 20 and conduct it to the target object. In other embodiments, the heat pipe 10 can also be made of stainless steel; there is no limitation here, and the material can be selected according to the actual situation.

[0035] Please see Figure 5 The dashed line represents the temperature curve of the heating tape 20, and the solid line represents the temperature curve of the heat pipe 10. The heating tape 20 is 6m long, and the heat pipe 10 is made of metal. The temperature of the heat pipe 10 is the same as the temperature of the tap water inside it. After about 3 minutes, the temperature of the heating tape 20 rises to 80 degrees Celsius. At this time, the temperature of the heat pipe 10 is 56.3 degrees Celsius. The heating tape 20, made of amorphous alloy, is used to heat the metal heat pipe 10. The total energy consumption for 10 minutes is 0.033 kWh. The energy consumption for maintaining the temperature at 50 degrees Celsius for one hour is 0.0135 kWh.

[0036] Please see Figure 6 The dashed line represents the temperature curve of the heating tape 20, and the solid line represents the temperature curve of the heat pipe 10. The heating tape 20 is 6m long, and the heat pipe 10 is made of plastic. The temperature of the heating tape 20 rises to 80 degrees Celsius in about 2 minutes, while the temperature of the tap water is approximately 28 degrees Celsius. Using the amorphous alloy heating tape 20 to heat the plastic heat pipe 10 consumes 0.032 kWh of energy in ten minutes, and 0.021 kWh of energy is consumed when maintaining the temperature at 50 degrees Celsius for one hour.

[0037] Optionally, the heating element 20 can be made of an iron-based amorphous alloy. Iron-based amorphous alloys are typically made with iron (Fe) as the main element, doped with elements such as silicon (Si) and boron (B), and produced through rapid solidification technology. Their atomic structure is disordered, lacking grain boundaries and crystal defects. Iron-based amorphous alloys have a high resistivity, typically in the range of 100-150 μΩ·cm, making them more prone to Joule heating when energized.

[0038] Please see Figures 1 to 3 In some embodiments, the heating element 20 is arranged in a spiral shape along the length of the heat pipe 10.

[0039] Optionally, the heating tape 20 has a spiral structure, making its contact with the heat pipe 10 more compact and continuous, resulting in a higher heat output density. Compared to traditional planar heating, the spiral arrangement can utilize the rapid heat generation capability of amorphous alloys to heat the target object located within the heat pipe 10 from all directions around the circumference of the heat pipe 10. The heat conduction time from the heating tape 20 to the target object is shortened to the millisecond level, achieving an "instant heat" effect.

[0040] Please see Figures 1 to 3 In some embodiments, the pitch of the heating element 20 is a fixed value, which can be 5mm, 10mm, 15mm, 20mm, 25mm or 30mm. There is no limitation here, and it can be selected according to the actual situation.

[0041] Please see Figures 1 to 3 In some embodiments, the pitch of the heating tape 20 gradually decreases along the length of the heat pipe 10. It is understood that the target object can flow within the heat pipe 10, i.e., the heat pipe 10 has a first end 101 and a second end 102 arranged opposite each other. The target object flows into the heating hole 103 from the first end 101 and flows out of the heating hole 103 from the second end 102. The heating tape 20 is wound around the second end 102, and the pitch of the heating tape 20 gradually decreases along the direction from the first end 101 to the second end 102. This allows the target object to first pass through a position with a larger pitch for preheating during flow, then undergo intensive heating from a position with a smaller pitch, and finally flow out of the heating hole 103. This improves the uniformity and effectiveness of heating the target object, while reducing the material used in the heating tape 20 and lowering costs.

[0042] Please see Figures 2 to 3 In some embodiments, the heating tape 20 is annular, and multiple heating tapes 20 are arranged at intervals along the length of the heat pipe 10.

[0043] Understandably, the heating tape 20 is arranged in a ring shape, which facilitates the independent arrangement of the ring-shaped heating tape 20, the assembly of the heating tape 20 with the heat pipe 10, and also reduces the manufacturing difficulty of the heating tape 20. Multiple ring-shaped heating tapes 20 are distributed along the length of the heat pipe 10, covering most of the surface of the heat pipe 10. Combined with the rapid heating characteristics of the amorphous alloy, each heating tape 20 can generate heat independently, and the heat is conducted to the target object through the heat pipe 10. Furthermore, the spaced-apart arrangement of the heating tapes 20 may also allow space for thermal expansion, preventing material deformation due to heat.

[0044] Please see Figure 2 In some embodiments, the heating tapes 20 are arranged at equal intervals along the length of the heat pipe 10. It is understood that the distance between any two adjacent heating tapes 20 can be 5mm, 10mm, 15mm, 20mm, 25mm, or 30mm; no limitation is imposed here, and the appropriate distance can be selected based on actual conditions. This equal-interval arrangement ensures a uniform heat contribution from each annular heating tape 20, with no significant heat gradient along the length of the heat pipe 10, allowing for uniform heating of the target object.

[0045] Please see Figure 3In some embodiments, the spacing between each of the heating elements 20 gradually decreases along the length of the heat pipe 10.

[0046] It is understandable that when the target object flows within the heat pipe 10, the flow direction is as follows: Figure 3 As indicated by the arrow, the target object flows into the heating hole 103 from the first end 101 and flows out of the heating hole 103 from the second end 102. Each heating tape 20 is wrapped around the second end 102 and points from the first end 101 to the second end 102. The spacing between the heating tapes 20 gradually decreases, so that the target object first passes through the position with a larger spacing for preheating during the flow process, then flows to the position with a smaller spacing for dense heating, and finally flows out of the heating hole 103. This helps to improve the uniformity and effectiveness of the heating of the target object, while reducing the material used in the heating tapes 20 and reducing costs.

[0047] Please see Figures 1 to 3 In some embodiments, the heating tape 20 is provided with a heat-conducting layer on the side facing the heat-conducting pipe 10, and the heat-conducting layer abuts against the side surface of the heat-conducting pipe 10.

[0048] Understandably, the thermally conductive layer can be made of insulating thermally conductive adhesive, a material that combines thermal conductivity and electrical insulation properties. Furthermore, this adhesive can also bond the heating element 20 to the outer surface of the heat pipe 10. The insulating thermally conductive adhesive can be an aluminum nitride ceramic coating, silicone-based insulating thermally conductive adhesive, epoxy-based insulating thermally conductive adhesive, or polyurethane-based insulating thermally conductive adhesive; there are no restrictions, and the choice can be made based on the specific circumstances.

[0049] The heat-conducting layer can also be made of aluminum nitride ceramic coating, which has high thermal conductivity and insulation. It can not only conduct the heat of the heating tape 20 to the heat pipe 10, but also electrically isolate the heating tape 20 from the heat pipe 10.

[0050] Optionally, if the high heat output of the heating tape 20 directly contacts the heat pipe 10, the thermal resistance may increase due to the rough surface or tiny gaps in the heat pipe 10. By using a heat-conducting layer as an intermediate medium, the gaps between the contact surfaces of the heating tape 20 and the heat pipe 10 can be filled, thereby improving the heat transfer efficiency. This improves the heat transfer efficiency, shortens the heating time of the target object, reduces energy loss, and ensures close cooperation between the heating tape 20 and the heat pipe 10.

[0051] Please see Figures 1 to 3 In some embodiments, the surface of the heating tape 20 facing away from the heat pipe 10 is provided with an insulation layer.

[0052] Optionally, the insulation layer can be made of silicone composite ceramic fiber, a material composed of an organosilicone (siloxane) matrix and ceramic fibers (such as alumina fibers and aluminosilicate fibers). The silicone composite ceramic fiber insulation layer possesses thermal insulation properties, along with flexibility and adhesion. The high temperature resistance and ultra-low thermal conductivity of the silicone composite ceramic fiber effectively prevent the heating tape 20 from dissipating heat, concentrating heat towards the heat pipe 10 and improving heating efficiency. Simultaneously, the flexibility of the insulation layer allows it to adapt to spiral or annular heating tape 20 structures. By setting heat-conducting and insulation layers on both sides of the heating tape 20, it achieves an internally conductive and externally insulating characteristic, maximizing the heat transfer from the heating tape 20 to the heat pipe 10.

[0053] Please see Figures 1 to 3 In some embodiments, the thickness of the heating tape 20 ranges from 20μm to 30μm. For example, the thickness of the heating tape 20 can be 20μm, 20.3μm, 21.7μm, 22.5μm, 23.9μm, 25.2μm, 26.8μm, 27.1μm, 28.4μm, 29.6μm, or 30.0μm. There is no limitation here, and it can be selected according to the actual situation.

[0054] Understandably, the heating tape 20 has a thin and wide geometric shape, resulting in a large surface area to volume ratio, which facilitates rapid heat transfer. Furthermore, the heating tape 20 is extremely lightweight (due to its thinness) and has a low heat capacity, thus heating up quickly with almost no heat lag. After being powered on, it can reach a stable operating temperature in a short time, typically within a few seconds. This rapid heating and minimal heat lag allows the tap water inside the heat pipe 10 to be heated to the set temperature, providing instant access to the water without waiting for it to heat up.

[0055] Please see Figures 1 to 3 In some embodiments, the bandwidth of the heating tape 20 ranges from 50mm to 100mm. For example, the width of the heating tape 20 can be 50mm, 50.8mm, 52.3mm, 55.6mm, 58.1mm, 60.4mm, 63.7mm, 65.2mm, 69.8mm, 72.5mm, 75.9mm, 78.3mm, 81.6mm, 85.2mm, 90.7mm, 98.4mm, or 100mm. There are no restrictions here, and it can be selected according to the actual situation.

[0056] Optionally, the bandwidth of the heating tape 20 is between 50mm and 100mm, increasing the heating area of ​​the heating tape 20. Combined with the uniform heat dissipation characteristics of the amorphous alloy, heat can cover a larger area of ​​the heat pipe 10 surface. This reduces the heat load per unit area, reduces the risk of local overheating, and extends the material's lifespan at high temperatures.

[0057] This utility model also proposes an instant water heater, which includes an amorphous alloy heating structure 100. The specific structure of the amorphous alloy heating structure 100 is as described in the above embodiments. Since this instant water heater adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0058] In some embodiments, the instantaneous water heater further includes a water tank, one end of the heat-conducting pipe 10 is connected to the water tank, and the other end of the heat-conducting pipe 10 is connected to the heating tape 20. The instantaneous water heater also includes an intelligent control module, which includes a temperature sensor 30, a current controller, a leakage protection circuit, a high-frequency AC power supply, a thermostat 40, and a communication unit supporting voice / APP control. The temperature sensor 30 is used to detect the water temperature in the heat-conducting pipe 10, and the thermostat 40 is used to control the operation of the heating tape 20 according to the detection result of the temperature sensor 30.

[0059] Please see Figure 4 This application also provides a heating control method, which includes the following steps:

[0060] S1: Temperature sensor 30 detects the water temperature inside heat pipe 10 and generates the detected temperature;

[0061] S2: If the detected temperature is greater than or equal to the set value, the thermostat 40 controls the heating element 20 to stop heating;

[0062] S3: If the detected temperature is lower than the set value, the thermostat 40 controls the heating element 20 to generate heat;

[0063] In step S3, the temperature sensor 30 can continue to detect the water temperature in the heat pipe 10 at intervals. If the detected temperature is lower than the set temperature, the thermostat 40 continues to control the heating tape 20 to generate heat. If the detected temperature is higher than or equal to the set temperature, the thermostat 40 controls the heating tape 20 to stop generating heat.

[0064] It is understandable that the instant water heater provided in this application can be applied to homes, hotels and other scenarios to achieve "instant hot water". Compared with traditional heating methods, it can save more than 30% of energy, while improving safety and user experience through intelligent control.

[0065] Please see Figure 1For example, the heating element 20 is wound around the heat pipe 10 with a spiral spacing of 5mm. The user sets the water temperature to 40℃, and the temperature sensor 30 feeds back the data to the temperature controller 40 to maintain a constant temperature.

[0066] Safety test: When simulating leakage current (5mA), the protection circuit cuts off the power supply within 8ms.

[0067] The instant water heater provided in this application combines the wide and thin characteristics of amorphous ribbon with high-frequency eddy current heating to achieve second-level heating of water in the pipe. Through the "internal conduction and external protection" layered structure design, it takes into account both heating efficiency and energy saving, and integrates intelligent temperature control and multi-level safety protection to improve user experience and safety.

[0068] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. An amorphous alloy heating structure for heating a target object, characterized in that, The amorphous alloy heating structure comprises a heat-conducting pipe and a heating strip made of amorphous alloy material and having a predetermined width, the heat-conducting pipe has a heating hole for accommodating the target object, the heating hole extends along the length direction of the heat-conducting pipe, the heating strip is arranged around the circumference of the heat-conducting pipe and is wound multiple turns along the length direction of the heat-conducting pipe, when the heating strip is in an electrically conductive state or when the heating strip is in a changing magnetic field, the heating strip generates heat and conducts the heat to the heat-conducting pipe to heat the target object.

2. The amorphous alloy heating structure of claim 1, wherein: The heating strip is arranged in a spiral shape along the length direction of the heat-conducting pipe.

3. The amorphous alloy heating structure of claim 2, wherein: The pitch of the heating strip is a constant value, or the pitch of the heating strip is tapered along the length direction of the heat-conducting pipe.

4. The amorphous alloy heating structure of claim 1, wherein: The heating strip is annular, and multiple heating strips are arranged at intervals along the length direction of the heat-conducting pipe.

5. The amorphous alloy heating structure of claim 4, wherein: Each of the heating strips is arranged at equal intervals along the length direction of the heat-conducting pipe, or the intervals of the heating strips are tapered in sequence along the length direction of the heat-conducting pipe.

6. The amorphous alloy heating structure of any one of claims 1-5, wherein: The heating strip is provided with a heat-conducting layer on the strip surface facing the heat-conducting pipe, and the heat-conducting layer abuts against the side surface of the heat-conducting pipe.

7. The amorphous alloy heating structure of any one of claims 1-5, wherein: The heating strip is provided with a heat-insulating layer on the strip surface away from the heat-conducting pipe.

8. The amorphous alloy heating structure of any one of claims 1-5, wherein: The thickness of the heating strip ranges from 20 μm to 30 μm.

9. The amorphous alloy heating structure of any one of claims 1-5, wherein: The width of the heating strip ranges from 50 mm to 100 mm.

10. A fast heating water heater characterized by, The instant water heater comprises the amorphous alloy heating structure as claimed in any one of claims 1-9, and further comprises a water tank, one end of the heat-conducting pipe is communicated with the water tank, and the other end of the heat-conducting pipe is connected with the heating strip.

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