A heated composite floor for rail vehicles

Abstract

This utility model discloses a heated composite floor for rail vehicles, comprising, from top to bottom, an upper aluminum skin, a heating source, a lower aluminum skin, a sound insulation felt, a support layer, and a rubber pad; the upper aluminum skin has frame edges at both ends; the support layer has several support beams. This utility model provides uniform and comfortable heat to the entire interior of the vehicle by heating the floor upwards, thus solving the problems of poor thermal comfort and high energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of rail vehicles, and in particular to a heated composite floor for rail vehicles. Background Technology

[0002] Most existing trams are equipped with air conditioning systems, but their heating function is often significantly reduced in extremely low temperatures. Currently, heating inside the carriages largely relies on auxiliary equipment such as electric seat heaters and electric radiators, or even simple passive insulation measures like heated seat cushions. These methods result in localized heating, leading to extremely uneven heat distribution within the carriages. This results in noticeable temperature stratification, such as "hot head and cold feet" or only warm seating areas while the aisles are cold, making it difficult to comprehensively improve the comfort experience for all passengers.

[0003] Moreover, traditional PTC air heating and electric auxiliary heating equipment consume huge amounts of power. For trams, the use of high-power PTCs will drastically increase the burden on the traction power supply system, which may lead to an increase in vehicle operating costs.

[0004] Therefore, it is necessary to develop new heating technologies for rail vehicles to overcome the above problems. Utility Model Content

[0005] Purpose of the utility model: In view of the shortcomings and defects of the existing technology, this utility model provides a heated composite floor for rail vehicles. By heating the floor upwards, it provides uniform and comfortable heat to the entire interior of the car, solving the problems of poor thermal comfort and high energy consumption.

[0006] Technical solution: The present invention relates to a heated composite floor for rail vehicles, characterized in that it comprises, from top to bottom, an upper aluminum skin, a heating source, a lower aluminum skin, a sound insulation felt, a support layer, and a rubber pad; the upper aluminum skin has frame edges at both ends; and the support layer has several support beams.

[0007] The heating source is equipped with a heating cable or a graphene film.

[0008] The heating source is equipped with a constant temperature control box, a temperature sensor and a variable temperature control switch.

[0009] The heating cable or graphene film is located above the PET pad.

[0010] The heating cable is located inside the heating cable trough.

[0011] Beneficial Effects: Compared with existing technologies, this utility model has the following significant advantages: This utility model provides uniform and comfortable heat to the entire interior of the carriage by heating from the floor upwards. It solves the problem of poor thermal comfort: eliminating the temperature stratification phenomenon of "hot head and cold feet," and achieving uniform heating of the entire cabin from bottom to top through floor radiant heating, greatly improving physical comfort; the floor surface temperature can reach 34±3℃. It solves the problem of high energy consumption: overcoming the huge power consumption defects of traditional PTC air heating and electric auxiliary heating equipment, significantly reducing the load of the heating system on the train traction power grid, improving energy efficiency, and achieving energy consumption of less than 350W / ㎡. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the heating source of this utility model. Figure 1 ;

[0014] Figure 3 This is a schematic diagram of the structure of the heating source of this utility model. Figure 2 ;

[0015] Figure 4 This is an assembly drawing of the present utility model;

[0016] In the figure, 1 is the upper aluminum skin; 2 is the heating source; 3 is the lower aluminum skin; 4 is the sound insulation felt; 5 is the support beam; 6 is the support layer; 7 is the rubber pad; 8 is the frame edge; 9 is the constant temperature control box; 10 is the temperature sensor; 11 is the variable temperature control switch; 12 is the PET pad; 13 is the heating cable trough; and 14 is the graphene film. Detailed Implementation

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] This utility model discloses a heated composite floor for rail vehicles, comprising, from top to bottom, an upper aluminum skin 1, a heating source 2, a lower aluminum skin 3, a sound insulation felt 4, a support layer 6, and a rubber pad 7; the upper aluminum skin 1 has frame edges 8 at both ends; the support layer 6 has several support beams 5. The heating source 2 is equipped with a heating cable or graphene film 14. The heating source 2 is equipped with a constant temperature control box 9, a temperature sensor 10, and a variable temperature control switch 11. The heating cable or graphene film 14 is located above a PET pad 12. The heating cable is located within a heating cable groove 13.

[0019] When the system is started, the thermostatic control box 9 supplies power to the heating source 2 (heating cable or graphene film 14) according to the target temperature set by the driver. The heat generated by the heating source 2 is evenly conducted to the floor surface through the upper aluminum skin 1, and the PET pad 12 at the same time plays a role in heat insulation and prevents heat loss downwards.

[0020] Temperature sensor 10 monitors the floor surface temperature in real time and transmits the data to thermostatic control box 9 via Ethernet or RS485 communication. The thermostatic control box 9 compares the actual temperature with the set value and dynamically adjusts the heating power through an algorithm to form a closed-loop control.

[0021] When temperature sensor 10 detects an abnormally high temperature, temperature control switch 11 immediately cuts off the power supply; simultaneously, the grounding points of all electrical components are connected to the vehicle body via grounding wires to ensure safe conduction of fault current. This dual protection mechanism completely avoids the risk of overheating and electric shock.

[0022] This utility model features: 1. Heating temperature regulation function: Equipped with a constant temperature control box, it allows customers to flexibly set the target temperature at the driver's control end, and achieves closed-loop temperature feedback control of the floor heating through linkage with temperature sensors. 2. Real-time temperature monitoring and transmission function: A high-precision temperature sensor monitors the floor surface temperature in real time and transmits temperature data to the vehicle in real time via the network, supporting multiple communication methods such as Ethernet and RS485. 3. Overheat protection function: Equipped with a temperature control switch, it features automatic cooling or power-off protection when the temperature exceeds the threshold, preventing high-temperature hazards and ensuring safe operation while facilitating crew operation. 4. Grounding protection: The electrical components of the floor are connected to the vehicle's grounding point. Fault current flows into the vehicle body through the grounding wire, avoiding electric shock accidents and ensuring personnel safety.

[0023] This invention utilizes graphene film or constant power cable combined with aluminum sheath to achieve efficient and uniform heating, and achieves precise energy-saving control through intelligent closed-loop temperature control system and remote monitoring; it is equipped with dual safety protection (temperature control switch + dedicated grounding) to ensure safe use; it adopts PET foam core material and aluminum profile frame structure, which increases service life while achieving lightweight; the whole invention has comprehensive advantages such as uniform heating, precise temperature control, safety and reliability, durability and convenient maintenance.

Claims

1. A heated composite floor for a railway vehicle, characterized by: It includes an upper aluminum skin (1), a heating source (2), a lower aluminum skin (3), a sound insulation felt (4), a support layer (6), and a rubber pad (7) arranged from top to bottom; the upper aluminum skin (1) has frame edges (8) at both ends; the support layer (6) has several support beams (5).

2. The heated composite floor for rail vehicles according to claim 1, characterized in that: The heating source (2) is equipped with a heating cable or a graphene film (14).

3. The heated composite floor for rail vehicles according to claim 2, characterized in that: The heating source (2) is equipped with a constant temperature control box (9), a temperature sensor (10) and a variable temperature control switch (11).

4. The heated composite floor for rail vehicles according to claim 2, characterized in that: The heating cable or graphene film (14) is located above the PET pad (12).

5. The heated composite floor for rail vehicles according to claim 4, characterized in that: The heating cable is located inside the heating cable trough (13).

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