A graphene heating sheet suitable for an electric iron
Patent Information
- Application Number
- CN202522757280.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-26
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-12-26
AI Technical Summary
[0002]电熨斗是一种常见的小家电，传统的蒸汽式电熨斗采用电阻式加热，加热过程非常缓慢，用户需要耐心等待5分钟以上才能开始使用电熨斗
[0010]本实用新型的有益效果如下：石墨烯发热片导热系数达 1500-1800 W/(m・K)，较传统电阻丝提升 3-4 倍，实现 30 秒内预热，传统电热丝预热需 3 分钟，温控精度 ±1℃，蒸汽蒸发率提升 20%，滴水率降至 1% 以下；发热体寿命达 10000 小时，而传统电热丝4000 小时，是传统电阻丝的 2.5 倍；化学稳定性强，水垢堵塞率降低 90% 以上。
Smart Images
Figure CN224844084U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of small household appliance technology, and in particular to a graphene heating element suitable for household electric irons, which has a high heat conversion rate. Background Technology
[0002] Electric irons are a common small household appliance. Traditional steam irons use resistance heating, which is a very slow process, requiring users to wait at least 5 minutes before using them. Furthermore, their power consumption is between 1800 and 2500 watts, making them very energy-intensive. In addition, inconsistent internal heating technologies in electric irons lead to unstable power output, easily damaging clothing. With the deepening of national energy conservation, emission reduction, and low-carbon policies, finding a solution to these problems—unstable power output, slow temperature rise, and high energy consumption—is of great significance. Utility Model Content
[0003] This invention provides a graphene heating element suitable for electric irons. When installed in an electric iron, this graphene heating element significantly improves the stability of the iron's power output, greatly increases the start-up and preheating speed, and significantly reduces power consumption. A graphene heating element suitable for electric irons includes a graphene heating core 8, a PI sealing layer A7, and a PI sealing layer B9. The PI sealing layer A7 and the PI sealing layer B9 cover both sides of the graphene heating core 8. The graphene heating core 8 is composed of graphene coated strips 13, and the two ends of the graphene coated strips 13 are terminals 14.
[0004] Preferably, the two sides of the PI sealing layer A7 and the PI sealing layer B9 are respectively covered with metal sheet A4 and metal sheet B11.
[0005] Preferably, the metal sheet A4 and the metal sheet B11 are made of stainless steel.
[0006] Preferably, a silicone sealing ring 5 is provided between the peripheries of the metal sheet A4 and the metal sheet B11, and the PI sealing layer A7 and the PI sealing layer B9 are placed in the silicone sealing ring 5.
[0007] Preferably, on the outside of the PI sealing layer A7 and the PI sealing layer B9, the male terminal 6 and the terminal base 10 clamp the terminal 14; the metal plate A4 and the metal plate B11 are provided with terminal wiring holes 15 at positions corresponding to the terminal 14, and the male terminal 6 and the terminal base 10 are disposed in the terminal wiring holes 15.
[0008] Preferably, silicone sealing layers A3 and B12 are respectively provided in the terminal wiring holes 15 of the metal sheet A4 and metal sheet B11. Their function is to provide insulation between the metal sheet and the wiring terminal.
[0009] Preferably, the male terminal 6 is plugged into the female terminal 2, and the female terminal 2 is connected to the power line 1.
[0010] The beneficial effects of this invention are as follows: the thermal conductivity of the graphene heating element reaches 1500-1800 W / (m・K), which is 3-4 times higher than that of traditional resistance wire, achieving preheating within 30 seconds, while traditional heating wire requires 3 minutes for preheating; the temperature control accuracy is ±1℃; the steam evaporation rate is increased by 20%; and the dripping rate is reduced to below 1%; the lifespan of the heating element reaches 10,000 hours, while that of traditional heating wire is 4,000 hours, which is 2.5 times that of traditional resistance wire; it has strong chemical stability, and the scale clogging rate is reduced by more than 90%.
[0011] Economic benefits: This solution has a heat conversion efficiency of 99%, compared to 85% for traditional solutions. A single 1500W electric iron can save approximately 67.5 kWh of electricity per year for 300 hours of use, resulting in annual electricity savings of over 40 yuan. The extended lifespan reduces replacement costs, and combined with mass production costs reduced to 8.2 yuan per piece, the total lifespan cost is reduced by 40%.
[0012] Social impact: Annual energy savings per unit correspond to a reduction of approximately 39.0 kg of carbon emissions, contributing to the dual carbon emission targets; it promotes the application of graphene materials in the consumer electronics field, aligns with industrial upgrading policies, and drives technological iteration in related industrial chains. Attached Figure Description
[0013] Figure 1 This is an exploded view of the graphene heating element for an electric iron according to this utility model.
[0014] Figure 2 This is a schematic diagram of the graphene coating strip 13 of the graphene heating element for an electric iron according to the present invention. Detailed Implementation
[0015] The present invention will be further described in conjunction with the following specific embodiments.
[0016] Figure 1 , Figure 2 In the middle: power cord 1, female terminal 2, silicone sealing layer A3, metal sheet A4, silicone sealing ring 5, male terminal 6, PI sealing layer A7, graphene heating core 8, PI sealing layer B9, terminal base 10, metal sheet B11, silicone sealing layer B12, graphene coated strip 13, terminal 14, terminal wiring hole 15.
[0017] A graphene heating element suitable for electric irons includes a graphene heating core 8, a PI sealing layer A7, and a PI sealing layer B9. The PI sealing layer A7 and the PI sealing layer B9 cover both sides of the graphene heating core 8. The graphene heating core 8 is composed of graphene coated strips 13, and the two ends of the graphene coated strips 13 are terminals 14.
[0018] Preferably, the two sides of the PI sealing layer A7 and the PI sealing layer B9 are respectively covered with metal sheet A4 and metal sheet B11.
[0019] Preferably, the metal sheet A4 and the metal sheet B11 are made of stainless steel.
[0020] Preferably, a silicone sealing ring 5 is provided between the peripheries of the metal sheet A4 and the metal sheet B11, and the PI sealing layer A7 and the PI sealing layer B9 are placed in the silicone sealing ring 5.
[0021] Preferably, on the outside of the PI sealing layer A7 and the PI sealing layer B9, the male terminal 6 and the terminal base 10 clamp the terminal 14; the metal plate A4 and the metal plate B11 are provided with terminal wiring holes 15 at positions corresponding to the terminal 14, and the male terminal 6 and the terminal base 10 are disposed in the terminal wiring holes 15.
[0022] Preferably, silicone sealing layers A3 and B12 are respectively provided in the terminal wiring holes 15 of the metal sheet A4 and metal sheet B11. Their function is to provide insulation between the metal sheet and the wiring terminal.
[0023] Preferably, the male terminal 6 is plugged into the female terminal 2, and the female terminal 2 is connected to the power line 1.
[0024] This device consists of a power cord 1, a female terminal block 2, a silicone sealing layer A3, a thin metal plate A4, a thin metal plate B11, a silicone sealing layer A3, a silicone sealing ring 5, a male terminal block 6, a PI sealing layer A7, a graphene heating element 8, a PI sealing layer B9, a terminal block base 10, a silicone sealing layer B12, a graphene coating strip 13, a terminal block 14, and a terminal wiring hole 15. This graphene heating element can withstand 220V AC voltage.
[0025] The core of this invention lies in the graphene heating core 8. High-quality graphene material is used, and after calculating the required heating power, the resistance pattern is designed, and the graphene heating core is shaped using special cutting methods.
[0026] The power cord 1, male terminal 6, female terminal 2, and terminal base 10 provide power access for the graphene heating core 8.
[0027] The PI sealing layer A7 and PI sealing layer B9 provide the first layer of insulation protection for the graphene heating core 8. Both PI sealing layers A7 and B9 are adhesive films and are laminated using hot pressing technology.
[0028] Among them, silicone sealing layer A3, silicone sealing layer B12, and silicone sealing ring 5 are all sealing media, providing a second layer of protection for the graphene heating core, preventing water, steam, etc. from entering the graphene heating core 8 sealed by PI sealing layer A7 and PI sealing layer B9, and avoiding short circuits.
[0029] Metal sheets A4 and B11 are made of stainless steel and are used for surface protection to prevent the graphene heating core 8 from being punctured or broken. When metal sheets A4 and B11 are combined with PI sealing layers A7 and B9, thermal grease is applied in between to improve thermal conductivity.
[0030] The above is a detailed description of the preferred embodiment of the present utility model. However, the invention of the present utility model is not limited to this embodiment. Those skilled in the art can make various equivalent changes or substitutions without departing from the spirit of the present utility model. All such equivalent changes or substitutions are included within the scope defined by the claims of this application.
Claims
1. A graphene heating element suitable for electric irons, characterized in that, It includes a graphene heating core (8), a PI sealing layer A (7), and a PI sealing layer B (9). The PI sealing layer A (7) and the PI sealing layer B (9) cover both sides of the graphene heating core (8). The graphene heating core (8) is composed of a graphene coating strip (13), and the two ends of the graphene coating strip (13) are terminals (14).
2. The graphene heating element for an electric iron according to claim 1, characterized in that, The two sides of the PI sealing layer A (7) and PI sealing layer B (9) are respectively covered with metal sheet A (4) and metal sheet B (11).
3. A graphene heating element suitable for an electric iron according to claim 2, characterized in that, The metal sheet A (4) and metal sheet B (11) are made of stainless steel.
4. A graphene heating element suitable for an electric iron according to claim 2, characterized in that, A silicone sealing ring (5) is provided between the periphery of the metal sheet A (4) and the metal sheet B (11), and the PI sealing layer A (7) and the PI sealing layer B (9) are placed in the silicone sealing ring (5).
5. A graphene heating element suitable for an electric iron according to claim 2, characterized in that, On the outside of the PI sealing layer A (7) and the PI sealing layer B (9), the male terminal (6) and the terminal base (10) clamp the terminal (14); the metal plate A (4) and the metal plate B (11) are provided with terminal wiring holes (15) at the corresponding positions of the terminal (14), and the male terminal (6) and the terminal base (10) are disposed in the terminal wiring holes (15).
6. A graphene heating element for an electric iron according to claim 5, characterized in that, Silicone sealing layer A (3) and silicone sealing layer B (12) are respectively provided in the terminal wiring holes (15) of the metal sheet A (4) and metal sheet B (11).
7. A graphene heating element for an electric iron according to claim 5, characterized in that, The male terminal (6) is plugged into the female terminal (2), and the female terminal (2) is connected to the power line (1).