Graphene whole-surface heating module adopting vertical electrode structure
By adopting a graphene full-surface heating module with a vertical electrode structure, the problem of the traditional heated seat cushion electrode layer being limited by ventilation holes is solved, achieving full-surface heating and heating uniformity, improving riding comfort and module stability.
Patent Information
- Application Number
- CN202511206967.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-27
- Publication Date
- 2025-11-18
AI Technical Summary
The traditional heated seat cushion's electrode layer horizontal conduction design needs to avoid ventilation holes, resulting in a limited heating area, making it impossible to achieve full-surface heating, and some areas have lower temperatures.
The graphene full-surface heating module with a vertical electrode structure forms a vertical current path by having the upper and lower electrodes in vertical contact with the graphene black film. The ventilation holes no longer restrict the electrode position, thus achieving full-surface heating.
It improves heating uniformity, reduces localized low-temperature areas, provides better ride comfort, and enhances the module's sealing and structural stability through the design of the encapsulation layer.
Smart Images
Figure CN120980729A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of graphene heating technology, and more specifically, to a graphene full-surface heating module employing a vertical electrode structure. Background Technology
[0002] Car seat heating pads are in-vehicle heating devices designed to enhance driving comfort. They typically consist of core components such as a main encapsulation layer, electrode layer, and graphene film. Powered by connecting to the car battery or a portable power source, they generate heat using heating elements. Combined with a temperature control module, speed adjustment circuit, and multiple protection mechanisms, they achieve precise temperature control and safe operation. Their surface often features ventilation holes to balance heat distribution, prevent localized overheating, and promote air circulation to reduce stuffiness. This allows users to quickly achieve a warm and comfortable driving experience in cold weather. Compatible with various car models and easy to install, they are an essential aid for winter driving.
[0003] Currently, in the production process of heated seat cushions, the surface of the heated seat cushion is often equipped with ventilation holes, which can not only balance the heat distribution and avoid local overheating, but also promote air circulation to reduce stuffiness, allowing users to quickly obtain a warm and comfortable driving experience in cold weather. At the same time, it is compatible with a variety of car models, easy to install, and is an invention and auxiliary equipment for driving in winter.
[0004] However, in the design of traditional heated seat pad electrode schemes, the electrode layer is mainly connected in the horizontal direction. It is necessary to avoid ventilation holes and ensure the consistency of electrode spacing. The heating area of this design is limited by the number of ventilation holes. The more ventilation holes there are, the smaller the heating area becomes, making it impossible to achieve full-surface heating. This results in some areas of the heating pad having lower temperatures. To address these issues, a graphene full-surface heating module with a vertical electrode structure is proposed. Summary of the Invention
[0005] To address the shortcomings of existing technologies, the present invention aims to provide a graphene full-surface heating module employing a vertical electrode structure.
[0006] To achieve the above objectives, the present invention provides the following technical solution: A graphene full-surface heating module with a vertical electrode structure includes a product heating module assembly. A current inlet wire is provided on one side of the product heating module assembly, and a current outlet wire is provided on the other side of the product heating module assembly. The ends of the current inlet wire and the current outlet wire away from the product heating module assembly are respectively connected to an external power supply.
[0007] The product heating module assembly includes, in sequence, a first encapsulation layer, an upper electrode, a graphene black film, a lower electrode, and a second encapsulation layer. The current inlet wire is connected to the upper electrode, and the current outlet wire is connected to the lower electrode.
[0008] The current from the external power supply is input to the upper electrode through the current inlet wire. The current from the upper electrode flows through the graphene black film to the lower electrode position, and then is output through the current outlet wire. The current from the upper electrode to the lower electrode forms a vertical electrode structure.
[0009] By adopting the above technical solution, the product heating module assembly is provided with several ventilation holes. The ventilation holes are used to assist in the heat dissipation of the car seat. The ventilation holes can disperse heat through air circulation, so that the heat can be transferred to the human body more evenly. By adopting a vertical electrode structure, since the graphene black film is the heating layer, the upper electrode and the lower electrode constitute the electrode layer. The electrode layer is in vertical contact with the heating layer. In actual production, there is no need to deliberately avoid the electrodes for the ventilation holes. The whole surface can be heated, reducing local low temperature areas and improving heating uniformity.
[0010] The present invention is further configured such that the first encapsulation layer, the upper electrode, the graphene black film, the lower electrode, and the second encapsulation layer have the same outline but different sizes.
[0011] The present invention is further configured such that: the first encapsulation layer and the second encapsulation layer constitute a total encapsulation layer, the graphene black film is a heating layer, and the upper electrode and the lower electrode constitute an electrode layer.
[0012] The present invention is further configured such that the overall width of the first encapsulation layer and the second encapsulation layer is greater than the overall width of the upper electrode and the lower electrode.
[0013] The present invention is further configured such that the overall width of the graphene black film is greater than the overall width of the upper electrode and the lower electrode.
[0014] The present invention is further configured such that: the graphene black film includes a heating surface A and a heating surface B, wherein the heating surface A is in contact with the upper electrode and the heating surface B is in contact with the lower electrode.
[0015] By adopting the above technical solution, the outermost layer of the product heating module assembly is the overall encapsulation layer, followed by the electrode layer, and the middle layer is the heating layer. The overall encapsulation layer is composed of an upper layer of adhesive film and a lower layer of adhesive film, which have good insulation and encapsulation protection. The heating layer uses graphene black film as the core heating element, which has excellent conductivity and heating performance. The electrode layer is composed of an upper electrode and a lower electrode, which are responsible for current input and output. According to the structural dimensions, since the overall width of the first and second encapsulation layers is wider than the overall width of the upper and lower electrodes, the electrode layer can be fully encapsulated and protected. In addition, the overall width of the graphene black film is also greater than the overall width of the upper and lower electrodes.
[0016] In summary, this application includes at least one of the following beneficial technical effects: 1. By adopting a vertical electrode structure, the electrode layer is in vertical contact with the heating layer. There is no need to deliberately avoid the electrodes for ventilation holes, and there is no obvious step feeling. It can achieve full-area heating, with a large heating area, reducing local low temperature areas, improving heating uniformity, and giving users a better riding comfort.
[0017] 2. The graphene black film serves as the heating layer, with its heating surface A in contact with the upper electrode and its heating surface B in contact with the lower electrode. Current flows vertically through the graphene black film, causing the entire heating layer to be energized and heated, thus reducing the heating blind zone caused by electrode avoidance in traditional solutions.
[0018] 3. The first encapsulation layer and the second encapsulation layer constitute the total encapsulation layer, which tightly wraps the electrode layer and the heating layer. The overall width of the total encapsulation layer is greater than that of the electrode layer and the heating layer, which improves the sealing performance and structural stability of the module and reduces the impact of the external environment on the internal components. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of a graphene full-surface heating module with a vertical electrode structure according to the present invention.
[0020] Figure 2 for Figure 1 A schematic diagram of the explosion structure.
[0021] Figure 3 This is a schematic diagram of the structure of the first encapsulation layer in this invention.
[0022] Figure 4 This is a schematic diagram of the upper electrode structure in this invention.
[0023] Figure 5 This is a schematic diagram of the graphene black film structure in this invention.
[0024] Figure 6 This is a schematic diagram of the structure of the lower electrode in this invention.
[0025] Figure 7 This is a schematic diagram of the structure of the second encapsulation layer in this invention.
[0026] Figure 8 This is a schematic diagram of the hierarchical structure of the product heating module assembly in this invention.
[0027] Figure 9 This is a schematic diagram of the structure of the product heating module assembly experimental method one in this invention.
[0028] Figure 10 This is a schematic diagram of the structure of the product heating module assembly experimental method two in this invention. Explanation of reference numerals in the attached drawings: 1. Product heating module assembly; 11. First encapsulation layer; 12. Upper electrode; 13. Graphene black film; 14. Lower electrode; 15. Second encapsulation layer; 2. Current inlet conductor; 3. Current outlet conductor. Detailed Implementation
[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0031] Please see Figures 1-10 The present invention provides the following technical solutions: Example 1, see Figure 1 To address the issue that existing heated seat cushions have horizontally conductive electrode layers that avoid ventilation holes, resulting in a smaller heating area with more ventilation holes, a graphene full-surface heating module with a vertical electrode structure is adopted to solve the above problems.
[0032] Among them, the graphene full-surface heating module with a vertical electrode structure includes product heating module assembly 1, which provides the basis for car seat heating.
[0033] See Figure 1 The product heating module assembly 1 has a current inlet wire 2 on one side and a current outlet wire 3 on the other side. The ends of the current inlet wire 2 and the current outlet wire 3 that are away from the product heating module assembly 1 are respectively connected to an external power supply.
[0034] The external power source can be a car battery or a portable power source. The external power source provides power to the entire product heating module assembly 1, and the current output wire 3, the product heating module assembly 1, the current input wire 2 and the external power source form a circuit to heat the car seat cushion through electricity.
[0035] The specific structure of product heating module assembly 1 is as follows: See Figures 2-8 The product heating module assembly 1 includes, in sequence, a first encapsulation layer 11, an upper electrode 12, a graphene black film 13, a lower electrode 14, and a second encapsulation layer 15. The current inlet wire 2 is connected to the upper electrode 12, and the current outlet wire 3 is connected to the lower electrode 14.
[0036] See Figures 2-8 The current from the external power supply is input to the upper electrode 12 through the current inlet wire 2. The current from the upper electrode 12 flows through the graphene black film 13 to the position of the lower electrode 14, and then is output through the current outlet wire 3. The current from the upper electrode 12 to the graphene black film 13 forms a vertical electrode structure.
[0037] See Figures 2-8 The first encapsulation layer 11, the upper electrode 12, the graphene black film 13, the lower electrode 14, and the second encapsulation layer 15 have the same outline but different sizes.
[0038] The five components—first encapsulation layer 11, upper electrode 12, graphene black film 13, lower electrode 14, and second encapsulation layer 15—maintain a consistent overall shape and adopt the same geometric design, but they differ significantly in their specific dimensions.
[0039] In the actual production process, the outlines and external shapes of the above components are perfectly matched, but their key dimensional parameters such as length, width and thickness are different. The above settings can not only make the layers match each other, but also meet the special dimensional requirements of different functional layers.
[0040] See Figures 2-8 The first encapsulation layer 11 and the second encapsulation layer 15 constitute the total encapsulation layer, the graphene black film 13 is the heating layer, and the upper electrode 12 and the lower electrode 14 constitute the electrode layer.
[0041] See Figures 2-8 The overall width of the first encapsulation layer 11 and the second encapsulation layer 15 is greater than the overall width of the upper electrode 12 and the lower electrode 14.
[0042] See Figures 2-8 The overall width of the graphene black film 13 is greater than the overall width of the upper electrode 12 and the lower electrode 14.
[0043] See Figures 2-8 The graphene black film 13 includes a heating surface A and a heating surface B. The heating surface A is in contact with the upper electrode 12, and the heating surface B is in contact with the lower electrode 14.
[0044] The outermost layer of the product heating module assembly 1 is the overall encapsulation layer, the middle layer is the heating layer, and the innermost layer is the electrode layer.
[0045] The overall encapsulation layer is composed of a first encapsulation layer 11 and a second encapsulation layer 15. In this embodiment, the encapsulation layer can be made of adhesive film, and the upper and lower adhesive films have good insulation and encapsulation protection. The heating layer uses a graphene black film 13 as the core heating element, which has excellent conductivity and heating performance. The electrode layer is composed of an upper electrode 12 and a lower electrode 14, which are responsible for the input and output of current.
[0046] Based on the structural dimensions, since the overall width of the first encapsulation layer 11 and the second encapsulation layer 15 is wider than the overall width of the upper electrode 12 and the lower electrode 14, the electrode layers can be fully encapsulated and protected.
[0047] In addition, since the overall width of the graphene black film 13 is also greater than the overall width of the upper electrode 12 and the lower electrode 14, the heating area can cover the electrode area.
[0048] During the heating process of the product heating module assembly 1, the current flows through the following path: See Figure 8 The current is input into the upper electrode 12 from the inlet wire, flows vertically through the graphene black film 13, and then outputs from the current outlet wire 3 through the lower electrode 14, forming a vertical current path from the upper electrode 12 to the graphene black film 13 and then to the lower electrode 14, thus realizing the vertical electrode structure.
[0049] The product heating module assembly 1 is equipped with several ventilation holes, which are used to assist in the heat dissipation of the car seat. The ventilation holes can disperse heat through air circulation, allowing heat to be transferred to the human body more evenly.
[0050] By adopting a vertical electrode structure, since the graphene black film 13 is the heating layer, the upper electrode 12 and the lower electrode 14 constitute the electrode layer. The electrode layer is in vertical contact with the heating layer. In actual production, there is no need to deliberately avoid the electrodes for ventilation holes, which can achieve whole-surface heating, reduce local low-temperature areas, and improve heating uniformity.
[0051] In this embodiment, the encapsulation layer can be made of adhesive film, which can achieve water-blocking and flame-retardant effects. In addition, the overall encapsulation layer has a width greater than that of the electrode layer and the heating layer, which can encapsulate the internal components, and play a role in fixing, insulating and protecting them.
[0052] The electrode layer can use, but is not limited to, copper foil, silver paste or conductive cloth as electrode material. The appropriate material can be selected according to the application scenario and customer requirements. The upper electrode 12 in the electrode layer receives current and the lower electrode 14 outputs current. The two are in contact with the upper and lower surfaces of the graphene black film 13 respectively, forming a vertical conductive channel, so it is not limited by the position of the ventilation hole.
[0053] The heating principle of graphene black film 13 is as follows: when the graphene black film 13 is energized, the free electrons in the graphene move at high speed to generate Joule heat, and electrical energy can be converted into heat energy, which can make the temperature rise rapidly.
[0054] The heating layer, as the medium through which the current flows vertically, has a width greater than that of the electrode layer, allowing the portion outside the contact area of the electrode layer to still generate heat through current conduction, thus achieving full-surface heating. The close contact between the heating surface A and the upper electrode 12, and the heating surface B and the lower electrode 14, ensures that the current flows through stably and is converted into heat.
[0055] The above-mentioned structure provides a basis for heating the car seat cushion, enabling the car seat to be heated and providing a better experience for car users.
[0056] To better investigate the actual heating area ratio of the graphene black film 13, two different experimental methods were used in the laboratory. Method one employed existing technologies, such as... Figure 9 As shown, experimental method two adopts the encapsulation method of this embodiment, such as... Figure 10 As shown.
[0057] In actual experiments, the formula for calculating the heat generation ratio is:
[0058] Among them, S 发 This refers to the actual area involved in generating heat, S 外 This refers to the overall physical size and area of the heating pad, where P represents the percentage of the actual heating area.
[0059] According to the experimental results, the heating area ratios of Experimental Method 1 and Experimental Method 2 are different.
[0060] The heating area of Experimental Method 1 is 19092 mm². 2 The heating element has a surface area of 55738 mm². 2 The actual heating area accounted for 34.3%.
[0061] The heating area of Experimental Method 2 is 42613 mm². 2 The heating element has a surface area of 55738 mm². 2 The actual heating area accounted for 76.4%.
[0062] In Experiment Method 1, there is only one layer of electrodes, and the current moves horizontally. At this time, the current will produce a stepped effect due to the influence of the ventilation holes, and the heating area is small.
[0063] In Experimental Method 2, the heating layer is located in the middle of the electrode layer. The electrode layer is divided into an upper electrode 12 and a lower electrode 14, which are in contact with the upper and lower surfaces of the graphene black film 13, respectively, forming a vertical conductive channel. At this time, the electrode layer can conduct electricity to the heating surface A and the heating surface B respectively, increasing the heating area of the graphene black film 13 without producing a stepped feeling.
[0064] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.
Claims
1. A graphene full-surface heating module employing a vertical electrode structure, characterized in that: The product heating module assembly (1) is provided with a current inlet wire (2) on one side and a current outlet wire (3) on the other side. The ends of the current inlet wire (2) and the current outlet wire (3) away from the product heating module assembly (1) are respectively connected to an external power supply. The product heating module assembly (1) includes, in sequence, a first encapsulation layer (11), an upper electrode (12), a graphene black film (13), a lower electrode (14), and a second encapsulation layer (15). The current inlet wire (2) is connected to the upper electrode (12), and the current outlet wire (3) is connected to the lower electrode (14). The current from the external power supply is input to the upper electrode (12) through the current inlet wire (2). The current from the upper electrode (12) flows through the graphene black film (13) to the lower electrode (14) and is then output through the current outlet wire (3). The current from the upper electrode (12) to the lower electrode (14) forms a vertical electrode structure.
2. The graphene full-surface heating module with a vertical electrode structure according to claim 1, characterized in that: The first encapsulation layer (11), the upper electrode (12), the graphene black film (13), the lower electrode (14), and the second encapsulation layer (15) have the same outline but different sizes.
3. A graphene full-surface heating module with a vertical electrode structure according to claim 2, characterized in that: The first encapsulation layer (11) and the second encapsulation layer (15) constitute the total encapsulation layer, the graphene black film (13) is the heating layer, and the upper electrode (12) and the lower electrode (14) constitute the electrode layer.
4. A graphene full-surface heating module with a vertical electrode structure according to claim 3, characterized in that: The overall width of the first encapsulation layer (11) and the second encapsulation layer (15) is greater than the overall width of the upper electrode (12) and the lower electrode (14).
5. A graphene full-surface heating module with a vertical electrode structure according to claim 4, characterized in that: The overall width of the graphene black film (13) is greater than the overall width of the upper electrode (12) and the lower electrode (14).
6. A graphene full-surface heating module with a vertical electrode structure according to claim 5, characterized in that: The graphene black film (13) includes a heating surface A and a heating surface B. The heating surface A is in contact with the upper electrode (12), and the heating surface B is in contact with the lower electrode (14).
7. A graphene full-surface heating module with a vertical electrode structure according to claim 3, characterized in that: The electrode layer uses copper foil, silver paste, or conductive cloth as the electrode material.