A piercing terminal connection structure for a graphene seat cushion heating pad

Abstract

The utility model relates to the technical field of automobile parts manufacturing process discloses a kind of piercing type terminal connecting structure for graphene cushion heating pad, including upper base cloth, copper sheet, graphene conductive coating, lower base cloth are sequentially arranged below the upper base cloth, piercing structure is arranged between the upper base cloth and lower base cloth, the piercing structure includes terminal, the top of the terminal is fixedly connected with sawtooth tines, the left end of the terminal is fixedly connected with connecting piece, the inside of the connecting piece is adaptively connected with electric wire, and the inner wall of the electric wire is provided with wire core.Penetrate and compress graphene conductive coating and copper sheet by sawtooth tines on the terminal in the utility model, ensure the stability and reliability of electrical connection, avoid the problem of poor contact that easily appears in traditional connection mode, improve the electrical performance and service life of graphene heating pad, provide more safe, efficient heating experience for user.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts manufacturing processes, and in particular to a piercing terminal connection structure for a graphene seat heating pad. Background Technology

[0002] A piercing terminal connection structure for graphene seat heating pads refers to a technology that mechanically connects the graphene heating element to an external circuit. This connection structure aims to provide a simple, efficient, and reliable connection method to ensure the electrical performance and lifespan of the graphene heating pad.

[0003] In existing technologies, the connection between graphene heating elements and external circuits is typically achieved through soldering. The specific steps are as follows: First, prepare the connectors to be connected, ensuring that the connector surfaces are clean and free of impurities; second, apply flux to reduce the soldering temperature and improve the soldering quality; then, use solder and a soldering iron to heat and solder, connecting the graphene heating element to the external circuit; finally, inspect the solder joints to ensure that the soldering is firm and free of any cold solder joints.

[0004] Existing methods for connecting graphene heating pads to external circuits primarily involve soldering, but the high temperatures of soldering can accelerate graphene degradation. Furthermore, the soldering process requires precise control of parameters such as temperature and time to ensure weld quality, placing high demands on the skill level of the workers. The soldering process is also complex, involving multiple steps including connector preparation, surface cleaning, flux application, and heating. Due to various influencing factors during the soldering process, such as ambient humidity and connector material, quality control is relatively difficult, and problems such as incomplete soldering and missed solder joints are prone to occur. Therefore, a piercing terminal connection structure for graphene seat heating pads is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a piercing terminal connection structure for graphene seat heating pads, aiming to improve the problems of accelerated graphene degradation and difficulty in controlling welding quality caused by soldering connections in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a piercing terminal connection structure for a graphene seat heating pad, comprising an upper base fabric, a copper sheet, a graphene conductive coating, and a lower base fabric arranged sequentially below the upper base fabric, and a piercing structure provided between the upper base fabric and the lower base fabric.

[0007] The piercing structure includes a terminal, the top of which is fixedly connected with a serrated tooth, the left end of which is fixedly connected with a connector, the inner side of which is adapted to be connected with an electric wire, the inner wall of which is provided with a wire core, and the top of the serrated tooth successively penetrates the bottom of the copper sheet and the graphene conductive coating.

[0008] As a further description of the above technical solution: the number of serrated teeth is two groups, and the number of serrated teeth in each group is six, and the six serrated teeth are staggered.

[0009] As a further description of the above technical solution: the connector is wedge-shaped.

[0010] As a further description of the above technical solution: the bottom of the connector is provided with a U-shaped groove, and the inner side of the U-shaped groove is in contact with the surface of the wire and the core respectively.

[0011] As a further description of the above technical solution: the top surface of the terminal and connector is in contact with the bottom surface of the upper base fabric.

[0012] As a further description of the above technical solution: the top surface of the terminal and the connector are in contact with the top surface of the lower base fabric.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the serrated teeth on the terminal pierce and press the graphene conductive coating and the copper sheet, ensuring the stability and reliability of the electrical connection, avoiding the poor contact problem that is easy to occur in traditional connection methods, improving the electrical performance and service life of the graphene heating pad, and providing users with a safer and more efficient heating experience.

[0015] 2. In this utility model, the connector adopts a wedge-shaped design and is equipped with a U-shaped groove for adapting the connecting wires and cores. This design simplifies the connection operation process, reduces the technical requirements for operators, improves production efficiency, and enhances the mechanical stability of the connection, ensuring the safety and reliability of the graphene heating pad during use. Attached Figure Description

[0016] Figure 1 This is a front view of a piercing terminal connection structure for a graphene seat heating pad proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the layered structure of a piercing terminal connection structure for a graphene seat heating pad proposed in this utility model.

[0018] Figure 3This is a top view schematic diagram of the terminal, serrated teeth, and connector of a piercing terminal connection structure for a graphene seat heating pad proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the overhead structure of the terminal, serrated teeth, and connector of a piercing terminal connection structure for a graphene seat heating pad proposed in this utility model.

[0020] Figure 5 This is a schematic diagram of the serrated teeth and the structure of the piercing terminal connection structure for a graphene seat heating pad proposed in this utility model after the connector is pressed together.

[0021] Legend:

[0022] 1. Upper base fabric; 2. Puncture structure; 201. Terminal; 202. Serrated teeth; 203. Connector; 204. Wire; 205. Wire core; 206. U-shaped groove; 3. Copper sheet; 4. Graphene conductive coating; 5. Lower base fabric. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figure 1 , Figure 2 One embodiment of this utility model is a piercing terminal connection structure for a graphene seat heating pad, comprising an upper base fabric 1, a copper sheet 3, a graphene conductive coating 4, and a lower base fabric 5 arranged sequentially below the upper base fabric 1, and a piercing structure 2 provided between the upper base fabric 1 and the lower base fabric 5. The piercing structure 2 is used to achieve a reliable connection between the graphene heating pad and the external circuit, while ensuring the electrical performance and mechanical stability of the heating pad.

[0025] Reference Figures 3-5The piercing structure 2 includes a terminal 201. A serrated tooth 202 is fixedly connected to the top of the terminal 201. The serrated tooth 202 is used to pierce and press the graphene conductive coating 4 and the copper sheet 3 to ensure good electrical contact. A connector 203 is fixedly connected to the left end of the terminal 201. The connector 203 is used to connect the wire 204. The top surfaces of the terminal 201 and the connector 203 are in contact with the bottom surface of the upper base fabric 1, and the bottom surfaces of the terminal 201 and the connector 203 are in contact with the top surface of the lower base fabric 5. The connector 203 is wedge-shaped. This shape design helps to better fix the wire 204. The inner side of the connector 203 is adapted to connect the wire 204. The wire 204 is used to transmit current. A wire core 205 is passed through the inner wall of the wire 204. The wire core 205 is the conductive part of the wire 204 and is used to conduct current.

[0026] Reference Figures 3-5 The bottom of the connector 203 is provided with a U-shaped groove 206. The inner side of the U-shaped groove 206 contacts the surface of the wire 204 and the wire core 205 respectively. The design of the U-shaped groove 206 ensures that the wire 204 and the wire core 205 can fit tightly, improving the stability of the connection. The top of the serrated teeth 202 passes through the bottom of the copper sheet 3 and the graphene conductive coating 4 in sequence. There are two sets of serrated teeth 202, with six serrated teeth 202 in each set. The six serrated teeth 202 are staggered. This staggered arrangement can increase the contact area and further improve the reliability of the electrical connection.

[0027] Working Principle: During normal operation, current flows through wire 204 and core 205 into connector 203, then through terminal 201 and serrated teeth 202 to copper sheet 3 and graphene conductive coating 4, generating heat in the graphene heating film. When connecting the graphene heating film to an external circuit, the crimping die on the crimping equipment is activated. The trapezoidal structure of the upper die moves downward, contacting the movable slider mechanism of the lower die. This causes the serrated teeth 202 on terminal 201 to pierce and press against the graphene conductive coating 4 and copper sheet 3, achieving a tight connection between terminal 201 and the graphene heating film. Simultaneously, using the crimping die, the core 205 of wire 204 is manually placed into the U-shaped groove 206 of terminal 201. After the crimping equipment is activated, the feeding claws automatically push terminal 201 to the crimping area between the upper and lower dies, completing the crimping of the core 205 of wire 204 and connecting terminal 201 to the circuit wire.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A piercing terminal connection structure for a graphene seat heating pad, comprising an upper base fabric (1), characterized in that: The upper base fabric (1) is provided with a copper sheet (3), a graphene conductive coating (4), and a lower base fabric (5) in sequence below it. A piercing structure (2) is provided between the upper base fabric (1) and the lower base fabric (5). The piercing structure (2) includes a terminal (201), a serrated tooth (202) is fixedly connected to the top of the terminal (201), a connector (203) is fixedly connected to the left end of the terminal (201), an electric wire (204) is adapted to be connected to the inner side of the connector (203), a wire core (205) is passed through the inner wall of the electric wire (204), and the top of the serrated tooth (202) passes through the bottom of the copper sheet (3) and the graphene conductive coating (4) in sequence.

2. The piercing terminal connection structure for a graphene seat heating pad according to claim 1, characterized in that: The number of the serrated teeth (202) is two sets, with six serrated teeth (202) in each set, and the six serrated teeth (202) are staggered.

3. The piercing terminal connection structure for a graphene seat heating pad according to claim 1, characterized in that: The connector (203) is wedge-shaped.

4. The piercing terminal connection structure for a graphene seat heating pad according to claim 1, characterized in that: The bottom of the connector (203) is provided with a U-shaped groove (206), and the inner side of the U-shaped groove (206) is in contact with the surface of the wire (204) and the core (205).

5. The piercing terminal connection structure for a graphene seat heating pad according to claim 1, characterized in that: The top surfaces of the terminals (201) and connectors (203) are in contact with the bottom surface of the upper base fabric (1).

6. The piercing terminal connection structure for a graphene seat heating pad according to claim 1, characterized in that: The top surfaces of the terminal (201) and connector (203) are in contact with the top surface of the lower base fabric (5).

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