An automatic heating charging station gun wire

Abstract

This utility model discloses an automatic heating charging station cable, including a cable body and several automatic heating modules. The cable body is provided with a power-conducting conductor and a CAN communication bus. The several automatic heating modules are arranged on the outer surface of the cable body and segmented along the length of the cable body. Each automatic heating module includes a graphene heating film, a first temperature sensor, a curvature sensor, and a sub-control circuit board. The graphene heating film covers the outer surface of the cable body. The graphene heating film, the first temperature sensor, the curvature sensor, and the sub-control circuit board are all electrically connected. Each sub-control circuit board is electrically connected to the power-conducting conductor and is signal-connected to the main controller installed on the charging station via the CAN communication bus. By setting the curvature sensor and the first temperature sensor, the curved section can be automatically heated according to the curvature of the cable to increase the temperature, without having to keep the entire cable at a high temperature, thus solving the problem of high operating costs.

Description

Technical Field

[0001] This utility model relates to the field of charging cable technology, specifically to an automatic heating charging station gun cable. Background Technology

[0002] The widespread adoption of electric vehicles has spurred the rapid development of charging stations, which are now installed and operational in major cities across the country. However, some cities experience low winter temperatures; for example, temperatures in the three northeastern provinces often drop below -10 degrees Celsius. Prolonged exposure to the cold can cause charging cables to harden, making them difficult to remove from the charging station, especially at bends. In severe cases, the cable insulation may break, leading to electrical leakage and posing a safety hazard.

[0003] Existing charging cables typically use PTC or heating wires on the surface for overall heating, requiring the entire cable to maintain a high temperature. While this method avoids the aforementioned problems, it consumes a lot of energy during use, resulting in high operating costs. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing an automatic heating charging station cable. It can automatically heat each segment of the cable according to the cable's curvature, eliminating the need to keep the entire cable at a constant temperature and reducing operating costs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automatic heating charging station cable includes a cable body and several automatic heating modules. The cable body is provided with a power-conducting conductor and a CAN communication bus. The automatic heating modules are disposed on the outer surface of the cable body and segmented along the length of the cable body. Each automatic heating module includes a graphene heating film, a first temperature sensor, a curvature sensor, and a sub-control circuit board. The graphene heating film covers the outer surface of the cable body. The graphene heating film, the first temperature sensor, the curvature sensor, and the sub-control circuit board are all electrically connected. Each sub-control circuit board is electrically connected to the power-conducting conductor and is signal-connected to a main controller disposed on the charging station via the CAN communication bus. By setting the curvature sensor and the first temperature sensor, the curved section can be automatically heated according to the curvature of the cable to increase the temperature, without having to keep the entire cable at a high temperature, thus solving the problem of high operating costs.

[0007] As a preferred embodiment, the main body of the cable is covered with a protective layer, and the automatic heating modules are all located inside the protective layer.

[0008] As a preferred embodiment, a phase change material is filled between the protective layer and the cable body.

[0009] As a preferred embodiment, the phase change temperature of the phase change material is 25-30℃.

[0010] As a preferred embodiment, the phase change material is a paraffin-based phase change material.

[0011] As a preferred embodiment, the protective layer is made of PVC material.

[0012] As a preferred embodiment, the thickness of the graphene heating film is 0.2 mm to 1 mm.

[0013] As a preferred embodiment, the first temperature sensor and curvature sensor are located in the middle of each segment of the automatic heating module.

[0014] As a preferred option, each graphene heating film has a length of 100mm-500mm along the length of the cable body.

[0015] As a preferred embodiment, the charging station is equipped with a second temperature sensor for detecting ambient temperature.

[0016] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically...

[0017] 1. By adopting a segmented design for the automatic heating module along the length of the cable, it is possible to increase the heating temperature only for the bent sections of the cable, thereby reducing energy consumption and costs.

[0018] 2. By setting a curvature sensor, the bending rate of the cable can be detected. The sub-control circuit board receives the electrical signal from the curvature sensor and controls the graphene heating film to heat up, thus achieving automatic heating.

[0019] To more clearly illustrate the structural features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments: Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the present utility model;

[0021] Figure 2 This is a cross-sectional view of an embodiment of the present utility model.

[0022] Explanation of reference numerals in the attached diagram:

[0023] 10 - Charging station gun cable;

[0024] 20 - Cable body; 201 - Core wire; 202 - High temperature resistant insulation layer;

[0025] 30 - Phase change materials;

[0026] 40-Graphene heating film;

[0027] 50-Curvature sensor;

[0028] 60 - First temperature sensor;

[0029] 70-Sub-control circuit board;

[0030] 80 - Protective layer. Detailed Implementation

[0031] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the position 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 utility model.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] like Figure 1-2 As shown, this utility model discloses an automatic heating charging station cable, including a cable body 20 and several automatic heating modules. The cable body 20 is provided with a power-carrying conductor (not shown) and a CAN communication bus (not shown). The several automatic heating modules are arranged on the outer surface of the cable body 20 and segmented along the length of the cable body 20. Each automatic heating module includes a graphene heating film 40, a first temperature sensor 60, a curvature sensor 50, and a sub-control circuit board 70. The graphene heating film 40 covers the outer surface of the cable body 20. The graphene heating film 40, the first temperature sensor 60, the curvature sensor 50, and the sub-control circuit board 70 are all electrically connected. Each sub-control circuit board 70 is electrically connected to the power-carrying conductor and signal-connected to a main controller (not shown) installed on the charging station (not shown) via the CAN communication bus. By setting the curvature sensor 50 and the first temperature sensor 60, the curved section can be automatically heated according to the curvature of the cable to increase the temperature, without having to keep the entire cable at a high temperature, thus solving the problem of high operating costs.

[0034] The cable body 20 is covered with a protective layer 80, and the automatic heating modules are all located inside the protective layer 80. The protective layer 80 is made of PVC material. A phase change material 30 is filled between the protective layer 80 and the cable body 20. The phase change temperature of the phase change material 30 is 25-30℃, preferably 25℃. The phase change material 30 is a paraffin-based phase change material 30. By using the paraffin-based phase change material 30, the cable body 20 can be insulated, reducing energy consumption.

[0035] The thickness of the graphene heating film 40 is 0.2mm-1mm, preferably 0.3mm.

[0036] The first temperature sensor 60 and curvature sensor 50 are located in the middle of each automatic heating module segment.

[0037] Each graphene heating film 40 has a length of 100mm-500mm along the length of the cable body 20, preferably 300mm.

[0038] The charging pile is equipped with a second temperature sensor (not shown in the figure) for detecting the ambient temperature; by setting the second temperature sensor, the ambient temperature can be detected, and more precise temperature control can be achieved.

[0039] In this utility model, the cable body 20 includes a plurality of core wires 201 and a high-temperature resistant insulation layer 202 covering the outside of the plurality of core wires 201.

[0040] In this invention, both the sub-control circuit board 70 and the main controller are mature products that can be purchased directly from the market. Their structure and control principle are existing technologies and will not be described in detail here.

[0041] The method of using this utility model is as follows: When the charging pile gun cable 10 is in a normal straight state, the first temperature sensor 60 detects the temperature of the charging pile gun cable 10, and the second temperature sensor detects the ambient temperature. The automatic heating module automatically heats the charging pile gun cable 10 to the lowest temperature. When the curvature sensor 50 detects that a certain section of the charging pile gun cable 10 is in a bent state, the sub-control circuit board 70 of that section transmits an electrical signal to the main controller. The main controller controls the increase of the heating temperature of the graphene heating film 40 according to the curvature and the temperature detected by the second temperature sensor. Other sections maintain the lowest heating temperature. The higher the curvature of the charging pile gun cable 10, the higher the heating temperature.

[0042] In summary, this utility model, by adopting a segmented design of the automatic heating module along the length of the cable, can increase the heating temperature only for the bent section of the cable, reduce energy consumption, and lower costs. By setting up a curvature sensor 50, the curvature of the cable can be detected. The sub-control circuit board 70 receives the electrical signal from the curvature sensor 50 and controls the graphene heating film 40 to heat, thereby achieving automatic heating.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the actual technical aspects of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An automatic heating charging station gun cable, characterized in that: The device includes a cable body and several automatic heating modules. The cable body is equipped with a power-conducting wire and a CAN communication bus. The automatic heating modules are arranged on the outer surface of the cable body and segmented along the length of the cable body. Each automatic heating module includes a graphene heating film, a first temperature sensor, a curvature sensor, and a sub-control circuit board. The graphene heating film covers the outer surface of the cable body. The graphene heating film, the first temperature sensor, the curvature sensor, and the sub-control circuit board are all electrically connected. Each sub-control circuit board is electrically connected to the power-conducting wire and connected to the main controller located on the charging pile via the CAN communication bus.

2. The automatic heating charging station gun line according to claim 1, characterized in that, The main body of the cable is covered with a protective layer, and the automatic heating modules are all located inside the protective layer.

3. The automatic heating charging station gun line according to claim 2, characterized in that, A phase change material is filled between the protective layer and the cable body.

4. The automatic heating charging station gun line according to claim 3, characterized in that, The phase change temperature of the phase change material is 25-30℃.

5. The automatic heating charging station gun line according to claim 4, characterized in that, The phase change material is a paraffin-based phase change material.

6. The automatic heating charging station gun line according to claim 2, characterized in that, The protective layer is made of PVC material.

7. The automatic heating charging station gun line according to claim 1, characterized in that, The thickness of the graphene heating film is 0.2mm-1mm.

8. The automatic heating charging station gun line according to claim 1, characterized in that, The first temperature sensor and curvature sensor are located in the middle of each automatic heating module.

9. The automatic heating charging station gun line according to claim 1, characterized in that, Each graphene heating film has a length of 100mm-500mm along the length of the cable body.

10. An automatic heating charging station gun line according to claim 1, characterized in that, The charging station is equipped with a second temperature sensor for detecting ambient temperature.

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