Electrode for heatable steering wheel, manufacturing method and vehicle

Abstract

The invention relates to an electrode for a heatable steering wheel, a manufacturing method and a vehicle, and relates to the technical field of steering wheel heating, and the electrode comprises a base material which is provided with a plurality of first through holes; the heating film is attached to the surface of one side of the base material, and a second through hole corresponding to the first through hole is formed in the heating film; one electrode plate is attached to the surface of the other side of the base material, the other electrode plate is attached to the surface of the side, away from the base material, of the heating film, and the two electrode plates penetrate through the first through hole and the second through hole to be connected so as to fix the heating film. Compared with the mode that the heating film is directly connected with the electrode plates, the heating film is fixed through connection of the two electrode plates, the stability is higher, and the problems that when a resistance wire heating method is adopted in the prior art, the number of interlayer interfaces is large, heat energy loss is likely to be large, and when a carbon heating film is adopted for heating, the connection reliability of the carbon heating film and a copper adhesive tape is poor are solved. And the carbon heating film may be damaged, so that good use experience is difficult to guarantee.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steering wheel heating, in particular to an electrode for a heatable steering wheel, a manufacturing method and a vehicle. BACKGROUND

[0002] In cold winter, when the engine water temperature rises slowly, the temperature in the car cannot rise rapidly, and the cold steering wheel will affect the driving comfort, which is more obvious for short-distance driving. During this period, the driver's hands are basically cold, and in areas with lower temperature, the driver's hands are stiff, which is not conducive to driving safety.

[0003] In the prior art, there are generally two forms of steering wheel heating. One is to use resistance wire heating method. Since the resistance wire heating has five layers with a thickness of millimeter level, the five layers of resistance wire heating film are wrapped from the outside to the inside of the steering wheel. The other is to use carbon heating film for heating. The carbon film has fast heating speed and uniform heating. The electrode connection method is to directly paste the copper tape on the heating film, or to add a layer of conductive adhesive between the copper tape and the heating film to increase the connection reliability and reduce the connection resistance.

[0004] However, when the resistance wire heating method is used, the number of layer interfaces is large, which may cause large heat energy loss. When the carbon heating film is used for heating, the connection reliability of the carbon heating film and the copper tape is poor, and the carbon heating film may be damaged. Both have the problem of difficult to ensure good user experience. SUMMARY

[0005] The present application provides an electrode for a heatable steering wheel, a manufacturing method and a vehicle, which can solve the problem that when the resistance wire heating method is used in the prior art, the number of layer interfaces is large, which may cause large heat energy loss, and when the carbon heating film is used for heating, the connection reliability of the carbon heating film and the copper tape is poor, and the carbon heating film may be damaged, which all have the problem of difficult to ensure good user experience.

[0006] In a first aspect, the embodiments of the present application provide an electrode for a heatable steering wheel, which comprises: a substrate, a plurality of first through holes are provided on the substrate; a heating film, which is attached to one side surface of the substrate, and a plurality of second through holes corresponding to the first through holes are provided on the heating film; two spaced-apart electrode sheets, one of which is attached to the other side surface of the substrate, and the other of which is attached to the side surface of the heating film away from the substrate, and the two electrode sheets are connected through the first through holes and the second through holes to fix the heating film.

[0007] In an embodiment, the substrate comprises a warp-knitted fabric and a weft-knitted fabric, and the gaps formed by the combination of the warp-knitted fabric and the weft-knitted fabric serve as the first through holes.

[0008] In an embodiment, a connecting piece is further included, which is used to pass through the first through hole and the second through hole and connect the two electrode pieces.

[0009] In an embodiment, the two electrode pieces are connected by ultrasonic welding, and the connecting piece is a welding spot of the ultrasonic welding.

[0010] In an embodiment, one end of each of the electrode pieces is provided with a hem, and the hems of the two electrode pieces are located at different sides, wherein the hem of one electrode piece is bent towards the other electrode piece and connected.

[0011] In an embodiment, the thickness of the heating film is 10-30 um.

[0012] In a second aspect, the embodiments of the present application further provide an electrode manufacturing method for a heatable steering wheel, which is used to manufacture the electrode for the heatable steering wheel as described above, and comprises the following steps: Preparation of a heating film, and the electrode piece is attached to the surface of the side of the heating film away from the substrate; Attaching the electrode piece to the surface of the substrate; Setting the heating film on the other surface of the substrate and connecting the two electrode pieces.

[0013] In an embodiment, the preparation of the heating film comprises: Uniformly spraying the material for forming the heating film on the surface of the substrate; Heat treatment of the material for forming the heating film to form and take out the heating film.

[0014] In an embodiment, ultrasonic welding is performed when connecting the two electrode pieces.

[0015] In a third aspect, the embodiments of the present application further provide a vehicle comprising the electrode for the heatable steering wheel as described above.

[0016] The technical solutions provided by the embodiments of the present application have the following beneficial effects: In the manufacturing of the electrode for the heatable steering wheel, a plurality of first through holes are provided on the substrate, the heating film is attached to one side surface of the substrate, the heating film is provided with second through holes corresponding to the first through holes, and two electrode pieces are provided at intervals, one of which is attached to the other side surface of the substrate, and the other is attached to the side surface of the heating film away from the substrate, and the two electrode pieces are connected through the first through holes and the second through holes to fix the heating film. In actual manufacturing, the heating film is prepared, and the electrode piece is attached to the side surface of the heating film away from the substrate; the electrode piece is attached to the surface of the substrate; the heating film is arranged on the other surface of the substrate, and the two electrode pieces are connected. Since the connection between the two electrode pieces is relatively stable, compared with the form of direct connection of the heating film and the electrode piece, the heating film is fixed by the connection of the two electrode pieces, and the connection stability is higher, which solves the problems that in the prior art, the method of heating by resistance wire has many interlayer interfaces, which may cause large heat energy loss, and the connection reliability of the carbon heating film and the copper adhesive tape is poor when the carbon heating film is used for heating, and the carbon heating film may be damaged, which all exist the problem of difficult to guarantee good use experience. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 The structure diagram of an embodiment of the electrode for the heatable steering wheel of the present application.

[0019] Figure 2 The structure diagram of the substrate in an embodiment of the electrode for the heatable steering wheel of the present application (all connecting pieces are not shown in the figure).

[0020] In the figure: 1, substrate; 11, first through hole; 12, warp knitted fabric; 13, weft knitted fabric; 2, heating film; 3, electrode piece; 4, connecting piece. DETAILED DESCRIPTION

[0021] In order to make those skilled in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0022] The embodiment of the present application provides an electrode for a heatable steering wheel, a manufacturing method and a vehicle, which can solve the problems that in the prior art, when a resistance wire heating method is used, there are many interlayer interfaces, which can cause large heat energy loss, when a carbon heating film is used for heating, the connection reliability of the carbon heating film and a copper adhesive tape is poor, and the carbon heating film can be damaged, and the problems that good use experience cannot be ensured exist.

[0023] As shown in Figure 1 and Figure 2 , in one aspect, the present application provides an electrode for a heatable steering wheel, which comprises: a substrate 1, a plurality of first through holes 11 are arranged on the substrate 1; a heating film 2, the heating film 2 is arranged on one side surface of the substrate 1, and the heating film 2 is provided with second through holes corresponding to the first through holes 11; two electrode sheets 3 arranged at intervals, one of the two electrode sheets 3 is arranged on the other side surface of the substrate 1, and the other electrode sheet 3 is arranged on the side surface of the heating film 2 away from the substrate 1, and the two electrode sheets 3 are connected through the first through holes 11 and the second through holes to fix the heating film 2.

[0024] In the manufacturing of the electrode for the heatable steering wheel, a plurality of first through holes 11 are arranged on the substrate 1, the heating film 2 is arranged on one side surface of the substrate 1, the heating film 2 is provided with second through holes corresponding to the first through holes 11, and two electrode sheets 3 arranged at intervals, one of the two electrode sheets 3 is arranged on the other side surface of the substrate 1, and the other electrode sheet 3 is arranged on the side surface of the heating film 2 away from the substrate 1, and the two electrode sheets 3 are connected through the first through holes 11 and the second through holes to fix the heating film 2. In actual manufacturing, the heating film 2 is prepared, the electrode sheet 3 is arranged on the side surface of the heating film 2 away from the substrate 1, the electrode sheet 3 is arranged on the surface of the substrate 1, the heating film 2 is arranged on the other surface of the substrate 1, and the two electrode sheets 3 are connected. Since the connection relationship between the two electrode sheets 3 is relatively stable, compared with the form that the heating film 2 is directly connected with the electrode sheet 3, the heating film 2 is fixed by the connection of the two electrode sheets 3, the connection stability is higher, and the problems that in the prior art, when a resistance wire heating method is used, there are many interlayer interfaces, which can cause large heat energy loss, when a carbon heating film is used for heating, the connection reliability of the carbon heating film and a copper adhesive tape is poor, and the carbon heating film can be damaged, and the problems that good use experience cannot be ensured exist.

[0025] In the example, the material of the electrode sheet 3 is copper, and the heating film 2 is a carbon heating film.

[0026] As shown in Figure 1 and Figure 2 , in some optional embodiments, the substrate 1 comprises a warp knitted fabric 12 and a weft knitted fabric 13, and the gap formed by the combination of the warp knitted fabric 12 and the weft knitted fabric 13 serves as the first through hole 11.

[0027] In this embodiment, the specific structure of the substrate 1 is described. The substrate 1 includes a warp knitted fabric 12 and a weft knitted fabric 13. The gap formed by the warp knitted fabric 12 and the weft knitted fabric 13 is used as the first through hole 11. After being combined, the warp knitted fabric 12 and the weft knitted fabric 13 form various texture patterns, which improves the structural stability of the substrate 1. In addition, the gap between the warp knitted fabric 12 and the weft knitted fabric 13 can be directly used as the first through hole 11, and the structure is simple and stable.

[0028] In this example, the material of the substrate 1 is nylon, PET, wood pulp fiber, etc.

[0029] like Figure 2 As shown, in some optional embodiments, a connecting member 4 is further included, which is used to pass through the first through hole 11 and the second through hole and connect with the two electrode sheets 3.

[0030] In this embodiment, the electrode for a heated steering wheel also includes a connector 4, which is used to pass through the first through hole 11 and the second through hole and connect to the two electrode sheets 3. The two electrode sheets 3 are connected by the connector 4, which has a simple structure and is easy to manufacture, and ensures the structural stability of the electrode for a heated steering wheel.

[0031] like Figure 2 As shown, in some optional embodiments, the two electrode sheets 3 are connected by ultrasonic welding, and the connecting member 4 is a welding point of ultrasonic welding.

[0032] In this embodiment, the two electrode sheets 3 are connected by ultrasonic welding, and the connecting piece 4 is an ultrasonic welding point. Ultrasonic waves can achieve seamless welding and minimize the welding interface, which has higher welding quality and is more suitable for welding operations in a small space.

[0033] like Figure 1 As shown, in some optional embodiments, one end of the electrode sheet 3 is provided with an edge, and the edges of the two electrode sheets 3 are located on opposite sides, wherein the edge of one electrode sheet 3 is bent toward and connected to the other electrode sheet 3 .

[0034] In this embodiment, a edging is provided at one end of the electrode sheet 3, and the edging of the two electrode sheets 3 is located on opposite sides, wherein the edging of one electrode sheet 3 is bent toward and connected to the other electrode sheet 3, and the side edge of the heating film 2 is covered by the edging, thereby further improving the protection effect of the heating film 2.

[0035] In some optional embodiments, the thickness of the heating film 2 is 10-30 um.

[0036] In this embodiment, the thickness of the heating film 2 is 10-30 μm, which can ensure the heating effect while minimizing the thickness of the heating film 2 as much as possible.

[0037] likeFigure 1 and Figure 2 As shown in the drawings, in one aspect, the application also provides a method for manufacturing an electrode for a heatable steering wheel, which is used to manufacture the electrode for a heatable steering wheel described above, and comprises the following steps: Preparation of the heating film 2, the electrode sheet 3 is attached to the side surface of the heating film 2 away from the substrate 1; The electrode sheet 3 is attached to the surface of the substrate 1; The heating film 2 is arranged on the other surface of the substrate 1, and the two electrode sheets 3 are connected.

[0038] In the manufacturing of the electrode for a heatable steering wheel, a plurality of first through holes 11 are provided on the substrate 1, the heating film 2 is attached to one side surface of the substrate 1, the heating film 2 is provided with second through holes corresponding to the first through holes 11, and the two electrode sheets 3 are arranged at intervals, one of which is attached to the other side surface of the substrate 1, and the other is attached to the side surface of the heating film 2 away from the substrate 1, and the two electrode sheets 3 are connected through the first through holes 11 and the second through holes to fix the heating film 2. In actual manufacturing, the heating film 2 is prepared, the electrode sheet 3 is attached to the side surface of the heating film 2 away from the substrate 1; the electrode sheet 3 is attached to the surface of the substrate 1; the heating film 2 is arranged on the other surface of the substrate 1, and the two electrode sheets 3 are connected. Due to the stable connection between the two electrode sheets 3, compared with the direct connection of the heating film 2 and the electrode sheet 3, the heating film 2 is fixed by the connection of the two electrode sheets 3, which has higher connection stability, solves the problem that the existing technology adopts resistance wire heating method, which has many interlayer interfaces, which may cause large heat energy loss, and the connection reliability of the carbon heating film and the copper adhesive tape is poor, and the carbon heating film may be damaged, which all exist the problem of difficult to guarantee good use experience.

[0039] In some optional embodiments, the preparation of the heating film 2 comprises: Uniformly spraying the material for forming the heating film 2 on the surface of the substrate 1; Heat treatment is performed on the material for forming the heating film 2 to form and take out the heating film 2.

[0040] In this embodiment, the preparation of the heating film 2 specifically comprises: uniformly spraying the material for forming the heating film 2 on the surface of the substrate 1, heat treatment is performed on the material for forming the heating film 2 on the surface of the substrate 1 to form the heating film 2, and the heating film 2 is taken out after formation. The preparation process is simple, and the second through hole matched with the first through hole 11 can be quickly formed on the heating film 2.

[0041] In this example, the heat treatment of the material for forming the heating film 2 is high-temperature drying of the material for forming the heating film 2, and the temperature is 80-100 degrees Celsius.

[0042] In some alternative embodiments, ultrasonic welding is performed when connecting the two electrode pieces 3.

[0043] In this embodiment, ultrasonic welding is performed when connecting the two electrode pieces 3, and the ultrasonic waves can achieve seamless welding and minimize the welding interface, and the welding quality is higher and more suitable for welding operations in narrow spaces.

[0044] In this embodiment, the welding time of ultrasonic welding is 0.5-2s.

[0045] As shown in Figure 1 and Figure 2 In another aspect, the application also provides a vehicle comprising the electrode for a heatable steering wheel described above.

[0046] In the manufacture of the electrode for a heatable steering wheel, a plurality of first through holes 11 are provided on the base material 1, the heating film 2 is attached to one side surface of the base material 1, the heating film 2 is provided with second through holes corresponding to the first through holes 11, and two electrode pieces 3 are provided at intervals, one of which is attached to the other side surface of the base material 1, and the other is attached to the side surface of the heating film 2 away from the base material 1, and the two electrode pieces 3 are connected through the first through holes 11 and the second through holes to fix the heating film 2. In actual manufacture, the heating film 2 is prepared, the electrode piece 3 is attached to the side surface of the heating film 2 away from the base material 1, the electrode piece 3 is attached to the surface of the base material 1, the heating film 2 is arranged on the other surface of the base material 1, and the two electrode pieces 3 are connected. Due to the stable connection between the two electrode pieces 3, compared with the direct connection of the heating film 2 and the electrode piece 3, the heating film 2 is fixed by the connection of the two electrode pieces 3, which has higher connection stability, solves the problem that the existing technology adopts resistance wire heating method, which has many interlayer interfaces and may cause large heat energy loss, and the connection reliability of the carbon heating film and the copper adhesive tape is poor, and the carbon heating film may be damaged, and the problem that it is difficult to ensure good user experience.

[0047] In this embodiment, the specific structure of the base material 1 is described, the base material 1 comprises a warp knitted fabric 12 and a weft knitted fabric 13, and the gap formed by the combination of the warp knitted fabric 12 and the weft knitted fabric 13 serves as the first through hole 11. After combination, the warp knitted fabric 12 and the weft knitted fabric 13 form various pattern lines, which improves the structural stability of the base material 1, and the gap of the warp knitted fabric 12 and the weft knitted fabric 13 can directly serve as the first through hole 11, which is simple and stable in structure.

[0048] In this embodiment, the electrode for a heatable steering wheel further comprises a connecting piece 4, which is used to pass through the first through hole 11 and the second through hole and connect with the two electrode pieces 3, and the two electrode pieces 3 are connected through the connecting piece 4, which is simple in structure, convenient to manufacture, and ensures the structural stability of the electrode for a heatable steering wheel.

[0049] In the embodiment, the two electrode sheets 3 are connected by ultrasonic welding, the connecting piece 4 is the welding spot of ultrasonic welding, the ultrasonic wave can realize seamless welding and minimize the welding interface, the welding quality is higher and more suitable for welding operation in narrow space.

[0050] In the embodiment, the edge covering is arranged at one end of the electrode sheet 3, the edge coverings of the two electrode sheets 3 are located at different sides, the edge covering of one electrode sheet 3 is bent and connected to the other electrode sheet 3, the side edge of the heating film 2 is covered by the edge covering, and the protection effect of the heating film 2 is further improved.

[0051] In the embodiment, the thickness of the heating film 2 is 10-30 um, the heating effect can be ensured and the thickness of the heating film 2 is minimized.

[0052] In summary, since the steering wheel heating currently adopts two forms, one is the method of adopting resistance wire heating, since the resistance wire heating has 5 layers and the thickness reaches millimeter level, the 5-layer resistance wire heating film is wrapped from the outside to the inside of the steering wheel, the other is the method of adopting carbon heating film to heat, the carbon film has fast heating speed and uniform heating, the electrode connection method is to directly paste the copper adhesive tape on the heating film or to add a layer of conductive adhesive between the copper adhesive tape and the heating film to increase the connection reliability and reduce the connection resistance, and all of them have problems, when the method of adopting resistance wire heating is adopted, the interlayer interface is more, which may cause large heat energy loss, when the carbon heating film is adopted to heat, the connection reliability of the carbon heating film and the copper adhesive tape is poor, and the carbon heating film may be damaged.

[0053] The scheme provides an electrode for a heatable steering wheel and an electrode manufacturing method, a plurality of first through holes 11 are arranged on a substrate 1, a heating film 2 is attached to one side surface of the substrate 1, the heating film 2 is provided with second through holes corresponding to the first through holes 11, and two electrode pieces 3 are arranged at intervals, one of the electrode pieces 3 is attached to the other side surface of the substrate 1, and the other electrode piece 3 is attached to the side surface of the heating film 2 away from the substrate 1, and the two electrode pieces 3 are connected through the first through holes 11 and the second through holes to fix the heating film 2. In actual manufacture, the heating film 2 is prepared, the electrode piece 3 is attached to the side surface of the heating film 2 away from the substrate 1, the electrode piece 3 is attached to the surface of the substrate 1, the heating film 2 is arranged on the other surface of the substrate 1, and the two electrode pieces 3 are connected. Since the connection between the two electrode pieces 3 is relatively stable, compared with the form of direct connection between the heating film 2 and the electrode piece 3, the heating film 2 is fixed by the connection of the two electrode pieces 3, and the connection stability is higher. In this design, the connection structure between the two electrode pieces 3 itself has high mechanical stability and electrical reliability. Compared with the point-to-point connection mode of directly connecting the heating film 2 with a single electrode piece 3, this scheme ingeniously uses the pair of stably connected electrode pieces 3 as "anchor points" and "bridges". The heating film 2 is clamped or fixed between the two firmly connected electrode pieces 3, and the edges or specific connection areas thereof form reliable contacts with the two electrode pieces 3, respectively. The key advantage of this structure is that the stress or potential displacement tendency of the heating film 2 can be effectively dispersed and constrained by the two electrode pieces 3 with fixed spacing and firm connection, thereby solving the problems that in the prior art, the method of using resistance wire heating has many interlayer interfaces, which may cause large heat energy loss, and the connection reliability of the carbon heating film and the copper adhesive tape is poor, and the carbon heating film may be damaged, and it is difficult to ensure good user experience.

[0054] In the description of the present application, it should be noted that the positions or position relationships indicated by the terms "upper", "lower", etc. are based on the positions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as a limitation on the present application. Unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0055] It should be noted that, in the present application, the relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0056] The foregoing is considered as illustrative only of the principles of the application. Numerous modifications and changes will readily occur to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Therefore, the application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electrode for a heated steering wheel, characterized in that: include: A substrate (1) having a plurality of first through holes (11) provided thereon; A heating film (2) is attached to a surface of one side of the substrate (1), and a second through hole corresponding to the first through hole (11) is provided on the heating film (2); Two electrode sheets (3) are spaced apart, wherein one electrode sheet (3) is attached to the other surface of the substrate (1), and the other electrode sheet (3) is attached to the surface of the heating film (2) on the side away from the substrate (1), and the two electrode sheets (3) pass through the first through hole (11) and are connected to the second through hole to fix the heating film (2).

2. An electrode for a heated steering wheel according to claim 1, characterized in that: The base material (1) comprises a warp knitted fabric (12) and a weft knitted fabric (13), and a gap formed by combining the warp knitted fabric (12) and the weft knitted fabric (13) serves as the first through hole (11).

3. The electrode for a heated steering wheel according to claim 1, wherein: It also includes a connecting piece (4), which is used to pass through the first through hole (11) and the second through hole and be connected to the two electrode sheets (3).

4. The electrode for a heated steering wheel according to claim 3, wherein: The two electrode sheets (3) are connected by ultrasonic welding, and the connecting piece (4) is a welding point of ultrasonic welding.

5. The electrode for a heated steering wheel according to claim 1, wherein: One end of the electrode sheet (3) is provided with an edge, and the edges of the two electrode sheets (3) are located on opposite sides, with the edge of one electrode sheet (3) being bent toward and connected to the other electrode sheet (3).

6. The electrode for a heated steering wheel according to claim 1, wherein: The thickness of the heating film (2) is 10-30 μm.

7. A method for manufacturing an electrode for a heated steering wheel, characterized in that: The method for producing an electrode for a heated steering wheel according to any one of claims 1 to 6 comprises the following steps: A heating film (2) is prepared, and an electrode sheet (3) is attached to the surface of the heating film (2) away from the substrate (1); An electrode sheet (3) is attached to the surface of the substrate (1); The heating film (2) is arranged on the other surface of the substrate (1) and connected to two electrode sheets (3).

8. The method for manufacturing an electrode for a heated steering wheel according to claim 7, wherein: The preparation of the heating film (2) comprises: Evenly spraying a material for forming a heating film (2) on the surface of a substrate (1); The material for forming the heating film (2) is heat-treated to form and remove the heating film (2).

9. The method for manufacturing an electrode for a heated steering wheel according to claim 7, wherein: When connecting the two electrode sheets (3), ultrasonic welding is performed.

10. A vehicle, characterized in that: The invention comprises an electrode for a heated steering wheel according to any one of claims 1 to 6.

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