A kind of heating and flame retardant function car interior roof

Abstract

The present invention discloses a car interior roof with heating and flame retardant functions, comprising a roof plate, a heat insulation layer is arranged below the roof plate, a flexible carbon fiber cloth is arranged below the heat insulation layer, a conductive strip is arranged at the edge of the flexible carbon fiber cloth, the conductive strip is connected with a conductive wire, and a flannel layer is arranged below the flexible carbon fiber cloth. The present invention arranges the flexible carbon fiber cloth in the car roof, which can be electrified in winter to achieve the purpose of quickly heating the car interior, and does not generate flowing wind to avoid blowing on the skin and causing discomfort, and has high heating efficiency and low power consumption.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile ceilings, and more specifically relates to an interior automobile ceiling with heating and flame retardant functions. Background Art

[0002] With the rapid development of my country's economy, the production capacity and ownership of automobiles are growing rapidly. The improvement of automobile production capacity has driven the continuous growth of automobile interior decoration items. With the rapid development of the automobile industry, the research and development of automobile interior decoration items has entered a stage of rapid development. In order to achieve a better decorative effect, the requirements for each product of automobile interior decoration items are very high. Among them, the automobile ceiling interior panel is a major decorative item. At present, the structure of the automobile ceiling interior panel is composed of a base material, a filling material and a surface material, which can be used to decorate the interior of the car well and enhance the comfort of people in the car.

[0003] Patent No. CN109703484A discloses a car top interior panel, including a sponge pad, a first support layer, an interior panel, a sound insulation board, a second support layer, a heat insulation pad, and a buffer pad. The sponge pad, the first support layer, the interior panel, the sound insulation board, the second support layer, the heat insulation pad, and the buffer pad are arranged in sequence from bottom to top. The first support layer and the second support layer are provided with a support plate, and the support plate is arranged in a wave shape. The first support layer and the second support layer are filled with glass wool. The present invention improves the structural strength and collision support capacity by providing the first support layer and the second support layer, and the support layer is provided with a wave-shaped support plate, while also reducing the structural weight; the glass wool filled in the support layer absorbs noise, and the sound insulation board is soundproof, which effectively improves the sound insulation and noise reduction effect; the heat insulation pad is provided to effectively isolate the heat emitted from the outside; and the riding comfort of passengers is improved.

[0004] The above-mentioned automobile top interior panel has the following disadvantages when in use: 1. The above-mentioned automobile top interior panel cannot ensure a more suitable temperature in the car when in use, so that the driver and passengers feel uncomfortable when driving in winter.

[0005] 2. When the above-mentioned automobile top interior panel is in use, the temperature inside the car is easily affected by the external ambient temperature, which makes the temperature inside the car too high in summer and too low in winter. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention provides a flexible carbon fiber cloth arranged in the roof of a vehicle, which can be electrified in winter to achieve the purpose of quickly heating the interior of the vehicle. It does not generate flowing wind to avoid blowing on the skin and causing discomfort, has high heating efficiency and low power consumption.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a heating and flame-retardant car interior roof, comprising a roof plate, a heat insulation layer is arranged below the roof plate, a flexible carbon fiber cloth is arranged below the heat insulation layer, a conductive strip is arranged at the edge of the flexible carbon fiber cloth, the conductive strip is connected to a conductive wire, and a flannel layer is arranged below the flexible carbon fiber cloth.

[0008] Furthermore, the flexible carbon fiber cloth is provided in a plurality of pieces, each piece of the flexible carbon fiber cloth faces a seat in the vehicle, and the plurality of pieces of the flexible carbon fiber cloth are independently connected to a control switch.

[0009] Furthermore, a silver welding wire is melt-welded between the conductive strip and the edge of the flexible carbon fiber cloth.

[0010] Furthermore, both sides of the flexible carbon fiber cloth and the conductive strip are provided with insulating films.

[0011] Furthermore, the insulating film is coated on the surface of the flexible carbon fiber cloth and integrated with the flexible carbon fiber cloth.

[0012] Furthermore, a sound insulation board is arranged between the heat insulation layer and the top plate.

[0013] Furthermore, a support plate is arranged between the sound insulation plate and the top plate, a spring is fixedly installed inside the support plate, and the outer side of the spring is filled with rubber.

[0014] Furthermore, the thermal insulation layer is made of silica aerogel.

[0015] Furthermore, an air cushion is arranged between the heat insulation layer and the flexible carbon fiber cloth, and the upper and lower surfaces of the air cushion are respectively adhered to the heat insulation layer and the flexible carbon fiber cloth.

[0016] Compared with the prior art, the invention has the following beneficial effects: the flexible carbon fiber cloth heating sheet of the invention has uniform heat generation and high heat conversion efficiency; repeated rubbing, folding and washing will not cause problems such as poor contact or decreased thermal efficiency; the flexible carbon fiber cloth will not generate open flames during use, has fast heat dissipation, will not burn the human body, is safe and reliable, does not contain resin and other substances, and will not change the resistance after repeated heating for many times; by installing the flexible carbon fiber cloth as the heating layer, when in use, turn on the external power supply to make the flexible carbon fiber cloth work, it generates heat evenly and radiates directionally into the car, and can choose whether to heat the corresponding seat according to whether there is someone on the seat, and has low power consumption; compared with the warm air of the air conditioner in the car, it can heat the designated area directionally without making the air flow, avoiding the wind blown out of the air conditioner outlet causing skin discomfort; at the same time, the carbon fiber heating can radiate far-infrared radiation heat that is beneficial to the human body, can achieve physical therapy and health care, dispel wind and dampness, activate blood circulation, and promote blood circulation, and can make people healthier and more comfortable when driving and riding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional view of the interior roof of a vehicle with heat-generating and flame-retardant functions according to the present invention.

[0018] Figure numerals: 1. top plate; 2. support plate; 3. sound insulation board; 4. thermal insulation layer; 5. air cushion; 6. flexible carbon fiber cloth; 7. flannel layer. DETAILED DESCRIPTION

[0019] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, "several" and "a number" mean two or more, unless otherwise clearly and specifically defined.

[0021] A car interior roof with heating and flame retardant functions comprises a roof panel 1, a heat insulation layer 4 is arranged below the roof panel 1, a flexible carbon fiber cloth 6 is arranged below the heat insulation layer 4, conductive strips are arranged at the edges of the flexible carbon fiber cloth 6, the conductive strips are connected to conductive wires, and a flannel layer 7 is arranged below the flexible carbon fiber cloth 6.

[0022] The flexible carbon fiber cloth 6 used in this embodiment is preferably the flexible carbon fiber cloth 6 produced by patent number 201811323434.X. This flexible carbon fiber cloth 6 has the characteristics of uniform heat generation, repeated rubbing, folding, and washing, and an electrothermal radiation conversion rate of 98.6%.

[0023] By connecting to the power system of the car through conductive wires, the flexible carbon fiber cloth 6 can generate heat. The flexible carbon fiber cloth 6 can generate heat quickly and evenly, and the flannel layer 7 radiates heat outward. When used in low temperature weather, the interior of the car can be quickly heated to increase the body surface temperature of the driver and passengers. After long-term use, the flexible carbon fiber cloth 6 can still maintain good heating performance.

[0024] In this embodiment, the conductive strip is preferably welded to the edge of the flexible carbon fiber cloth 6. More specifically, a silver welding wire is melt-welded between the conductive strip and the edge of the flexible carbon fiber cloth 6. After the silver welding wire is melted, the conductive strip and the edge of the flexible carbon fiber cloth 6 are welded together, and the combination is tight and firm with high conductivity.

[0025] In this embodiment, the flexible carbon fiber cloth 6 is preferably provided in a plurality of pieces, each piece of the flexible carbon fiber cloth 6 faces a seat in the vehicle, and the plurality of pieces of the flexible carbon fiber cloth 6 are independently connected to a control switch.

[0026] By arranging multiple pieces of flexible carbon fiber cloth 6, that is, the flexible carbon fiber cloth 6 above each seat is heated independently, the flexible carbon fiber cloth 6 can be selected for heating according to whether each seat in the car is occupied, thereby achieving zoned heating of each seat area. Moreover, since it does not generate wind similar to air conditioning, its heat is directional radiant heat, which has little impact on temperature changes in neighboring seats and is more energy-efficient.

[0027] In this embodiment, the flexible carbon fiber cloth 6 and the conductive strips preferably have insulating films on both sides. The insulating films preferably in this embodiment are insulating silicone, PI film, PE film, PET film or TPU film, so that when the flexible carbon fiber cloth 6 is in contact with the outside world, only the conductive wires can conduct electricity.

[0028] In this embodiment, the insulating film is preferably coated on the surface of the flexible carbon fiber cloth 6 and integrated with the flexible carbon fiber cloth 6, so there is no need to arrange an additional insulating layer on the roof, thereby improving assembly efficiency.

[0029] In this embodiment, a sound insulation board 3 is preferably provided between the heat insulation layer 4 and the top plate 1, so as to achieve a better sound insulation effect in the vehicle.

[0030] In this embodiment, a support plate 2 is preferably provided between the sound insulation plate 3 and the top plate 1 , a spring is fixedly installed inside the support plate 2 , and the outer side of the spring is filled with rubber.

[0031] When the roof of the vehicle is impacted by the external environment, the spring installed inside the support plate 2 can generate a certain elastic force, thereby reducing the impact force under the action of the elastic force. At the same time, the rubber can protect the roof of the vehicle under the action of the impact force, thereby reducing the deformation of the roof of the vehicle.

[0032] The preferred material of the thermal insulation layer 4 in this embodiment is silica aerogel. The thermal insulation material silica aerogel filled inside the thermal insulation layer 4 has a thermal conductivity as low as 0.013W / (m·K) at room temperature, which can isolate external high temperature and prevent external high temperature from invading the car in summer. At the same time, due to the low thermal conductivity, the purpose of flame retardancy can be achieved.

[0033] In this embodiment, an air cushion 5 is preferably provided between the thermal insulation layer 4 and the flexible carbon fiber cloth 6. The upper and lower surfaces of the air cushion 5 are respectively adhered to the flexible carbon fiber cloth 6 and the thermal insulation layer 4. The air cushion 5 can achieve a buffering effect while having heat preservation and sound insulation effects. An air hole is reserved on the upper shell of the air cushion 5 for inward air replenishment.

[0034] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A heating and flame retardant car interior roof, comprising a roof plate, a heat insulation layer is arranged below the roof plate, and is characterized by: A flexible carbon fiber cloth is arranged below the thermal insulation layer, a conductive strip is arranged at the edge of the flexible carbon fiber cloth, the conductive strip is connected to a conductive wire, and a flannel layer is arranged below the flexible carbon fiber cloth; a sound insulation board is arranged between the thermal insulation layer and the top plate, a support plate is arranged between the sound insulation board and the top plate, a spring is fixedly installed inside the support plate, and the outer side of the spring is filled with rubber; The flexible carbon fiber cloth is provided in a plurality of pieces, each piece of the flexible carbon fiber cloth faces a seat in the vehicle, and the plurality of pieces of the flexible carbon fiber cloth are independently connected to a control switch; Silver welding wire is melt-welded between the conductive strip and the edge of the flexible carbon fiber cloth; The flexible carbon fiber cloth and the conductive strips are provided with insulating films on both sides, and the insulating films are insulating silica gel, PI film, PE film, PET film or TPU film; The insulating film is coated on the surface of the flexible carbon fiber cloth and is integrated with the flexible carbon fiber cloth; An air cushion is also arranged between the heat insulation layer and the flexible carbon fiber cloth, and the upper and lower surfaces of the air cushion are respectively adhered to the heat insulation layer and the flexible carbon fiber cloth.

2. The heat-generating and flame-retardant functional vehicle interior roof according to claim 1, characterized in that: The thermal insulation layer is made of silicon dioxide aerogel.

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