Electric heating device

Abstract

The utility model discloses an electric heating device which comprises a shell, a heating plate is installed on the shell, and the shell is connected with the heating plate through a connector. A heat insulation plate is arranged at the end of the shell and embedded in a groove in the end of the shell to block the heating plate, and an end cover is arranged on the side of the heat insulation plate and connected with the shell through a fastener. The heating plate is provided with a graphene coating and a temperature sensor. The graphene heating plate is adopted, heating is carried out through heat radiation, the heating attenuation rate is low, the use requirement of not less than 15 years can be met, and the maintenance and repair cost is reduced; a sheet type plug-in mounting structure is adopted, so that the occupied space is small, the assembly is simple, and the production cycle can be greatly shortened; only the heating sheet needs to be replaced during maintenance and replacement, disassembly is convenient, and maintenance and repair cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of rail transit, and in particular to an electric heating device. Background Technology

[0002] Existing electric heating systems for rail transit vehicle doors often use resistance wire heating, which suffers from significant heating degradation and a short lifespan, requiring replacement every 6-8 years, resulting in high operating costs. Furthermore, the installation and operation of resistance wires are complex, hindering subsequent maintenance.

[0003] Therefore, it is necessary to develop new types of electric heating devices to overcome the above problems. Utility Model Content

[0004] Purpose of the utility model: To address the shortcomings and defects of existing technologies, this utility model provides an electric heating device that uses a graphene heating plate for heating through thermal radiation. It features a low heating attenuation rate, meeting the requirement of at least 15 years of use, thus reducing maintenance and repair costs. The device employs a plate-type insert installation structure, occupying little space and simplifying assembly, significantly shortening the production cycle. Maintenance and replacement only require replacing the heating plate, making disassembly convenient and further reducing maintenance and repair costs.

[0005] Technical solution: The present invention provides an electric heating device, characterized in that: it includes a housing, on which a heating plate is mounted, and the housing and the heating plate are connected by a connector; a heat insulation plate is provided at the end of the housing, which is embedded in a groove at the end of the housing to seal the heating plate, and an end cap is provided on the side of the heat insulation plate, which is connected to the housing by fasteners; the heating plate is coated with graphene and is equipped with a temperature sensor.

[0006] The heating plate is installed in a groove in the housing.

[0007] The wiring harness of the heating plate passes through the connector.

[0008] The heating plate includes a base plate, electrodes, a graphene coating, terminals, and an insulation plate.

[0009] The base plate, electrodes, and graphene coating constitute the main structure of the heating plate, and the main structure is wrapped with an insulating layer.

[0010] The terminals are the positive and negative terminals of the power supply and the ground, and the terminals are equipped with an insulation plate for heat insulation and protection of the heating plate.

[0011] The hot plate is connected to an external controller, and the temperature sensor of the hot plate is also connected to the external controller.

[0012] Beneficial effects: Compared with the prior art, this utility model has the following significant advantages: This utility model uses a graphene heating plate, which heats through thermal radiation, has a low heating attenuation rate, and can meet the service requirements of no less than 15 years, reducing maintenance and repair costs; Compared with traditional resistance wire heating, the graphene heating plate has the advantages of high electrothermal conversion rate, fast heating, uniform heating, and energy saving and environmental protection; It adopts a plate-type plug-in installation structure, which occupies little space, is simple to assemble, and can greatly shorten the production cycle; Repair and replacement only require replacing the heating plate, which is convenient to disassemble and reduces maintenance and repair costs. Attached Figure Description

[0013] Figure 1 This is an exploded structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the connection structure of this utility model;

[0015] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 4 This is a schematic diagram of the heating plate of this utility model;

[0017] Figure 5 This is a flowchart illustrating the operation of this utility model;

[0018] In the figure, 1 is the housing; 2 is the heating plate; 21 is the base plate; 22 is the electrode; 23 is the graphene coating; 24 is the terminal block; 25 is the heat insulation plate; 3 is the heat insulation plate; 4 is the end cap; 5 is the fastener; and 6 is the connector. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] The electric heating device of this utility model includes a housing 1, on which a heating plate 2 is mounted, and the housing 1 and the heating plate 2 are connected by a connector 6. A heat insulation plate 3 is provided at the end of the housing 1, which is embedded in a groove at the end of the housing 1 to seal the heating plate 2. An end cap 4 is provided on the side of the heat insulation plate 3, and the end cap 4 is connected to the housing 1 by fasteners 5. The heating plate 2 has a graphene coating 23 and a temperature sensor. The heating plate 2 is installed in the groove of the housing 1. The wiring harness of the heating plate 2 passes through the connector 6.

[0021] The heating plate 2 of this invention includes a base plate 21, electrodes 22, a graphene coating 23, terminals 24, and an insulation plate 25. The base plate 21, electrodes 22, and graphene coating 23 constitute the main structure of the heating plate 2, which is externally wrapped with an insulating layer. Terminals 24 are the positive and negative terminals for power supply and grounding, and the insulation plate 25 is provided on the terminals 24 for heat insulation and protection of the heating plate. The heating plate 2 is connected to an external controller, and the temperature sensor of the heating plate 2 is also connected to the external controller.

[0022] This utility model device uses a graphene heating plate to generate heat energy that radiates to the target surface, achieving heating and antifreeze functions. The device consists of a shell, heating plate, heat insulation plate, end caps, and wiring harness connectors. The heating plate is installed inside the electric heating shell, and both ends are sealed with silicone plates and end caps to fix and seal the heating plate. When the heating plate is powered on, the graphene material on the heating plate heats up, and the heat radiates to the heating surface of the shell, achieving the heating and antifreeze function of the car door.

[0023] When in use, the controller supplies power to the heating plate and monitors the temperature sensor embedded in the heating plate.

[0024] When the temperature is lower than the set value T, the controller supplies power to the heating plate, and the heating plate starts to heat up.

[0025] When the temperature exceeds the set value T, the controller cuts off the power to the heating plate, and the heating plate stops heating.

Claims

1. An electric heating device, characterized in that: The device includes a housing (1), on which a heating plate (2) is mounted, and the housing (1) and the heating plate (2) are connected by a connector (6); the end of the housing (1) is provided with a heat insulation plate (3), which is embedded in the groove at the end of the housing (1) to seal the heating plate (2), and the side of the heat insulation plate (3) is provided with an end cap (4), which is connected to the housing (1) by a fastener (5); the heating plate (2) is provided with a graphene coating (23) and a temperature sensor.

2. The electric heating device according to claim 1, characterized in that: The heating plate (2) is installed in the groove of the housing (1).

3. The electric heating device according to claim 1, characterized in that: The wiring harness of the heating plate (2) passes through the connector (6).

4. The electric heating device according to claim 1, characterized in that: The heating plate (2) includes a base plate (21), an electrode (22), a graphene coating (23), a terminal block (24), and an insulation plate (25).

5. The electric heating device according to claim 4, characterized in that: The base plate (21), electrode (22), and graphene coating (23) constitute the main structure of the heating plate (2), and the main structure is wrapped with an insulating layer.

6. The electric heating device according to claim 5, characterized in that: The terminal (24) is the positive and negative terminals of the power supply and ground. The terminal (24) is provided with an insulation plate (25) for heat insulation and protection of the heating plate.

7. The electric heating device according to claim 1, characterized in that: The heating plate (2) is connected to an external controller, and the temperature sensor of the heating plate (2) is connected to the external controller.

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