Vehicle carpet, in-car heating system and vehicle

Abstract

The application discloses a vehicle carpet, an in-vehicle heating system and a vehicle, and relates to the technical field of vehicle manufacturing. The vehicle carpet comprises a top heat-conducting layer group and a bottom cushioning and heat-insulating layer group; a heating layer is arranged between the top heat-conducting layer group and the bottom cushioning and heat-insulating layer group; a heating flow path is formed in the heating layer; a first heat exchanger is connected in series in the heating flow path; the heating flow path exchanges heat with an external heat source flow path through the first heat exchanger; and the heating flow path is adapted to conduct heat to an in-vehicle space through the top heat-conducting layer group. According to the vehicle carpet, the in-vehicle space can be heated through the flow path, the temperature of the in-vehicle space is improved, the comfort of a user is improved, the heating safety is high, the energy consumption is low, the heating speed is fast, the heating efficiency is high, and the use experience of the user can be effectively improved.

Description

Technical Field

[0001] This invention relates to the field of vehicle manufacturing technology, and more particularly to a vehicle carpet, an in-vehicle heating system having the vehicle carpet, and an in-vehicle heating system having the in-vehicle heating system or having the vehicle carpet. Background Technology

[0002] With the continuous development of the automotive industry, the requirements for vehicle interior comfort are also increasing. As an important component of vehicle interiors, vehicle carpets must meet both functional needs, such as sound insulation and noise reduction, and maintaining cleanliness inside the vehicle, as well as comfort requirements. At the same time, because vehicle batteries and motors generate electromagnetic radiation, posing a potential threat to the health of passengers, traditional carpet structures are insufficient to meet radiation protection requirements.

[0003] In related technologies, heated carpets that can be electrically heated are used to raise the temperature of the vehicle interior. However, electric heating using resistance wires or graphene electric heating modules consumes a lot of energy, which will increase the energy consumption of the vehicle battery and reduce the driving range. In addition, it will generate radiation, which is prone to leakage and radiation risks, i.e., poor safety. The heating efficiency is low, which cannot achieve rapid heating of the vehicle interior and affects the user experience. Summary of the Invention

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a vehicle carpet that can heat the airflow path of the vehicle interior, increase the interior temperature, improve user comfort, and offers high heating safety, low energy consumption, fast heating speed, and high heating efficiency, effectively enhancing the user experience.

[0005] According to an embodiment of the present invention, a vehicle carpet includes: a top heat-conducting layer assembly and a bottom buffer heat-insulating layer assembly; a heating layer installed between the top heat-conducting layer assembly and the bottom buffer heat-insulating layer assembly; wherein a heating flow path is formed within the heating layer, a first heat exchanger is connected in series in the heating flow path, the heating flow path exchanges heat with an external heat source flow path through the first heat exchanger, and the heating flow path is adapted to conduct heat to the vehicle interior space through the top heat-conducting layer assembly.

[0006] According to an embodiment of the present invention, a vehicle carpet is provided with a heating layer having a heating flow path and connected in series with a first heat exchanger. This allows the heating flow path to exchange heat with an external heat source flow path through the first heat exchanger, thereby raising the temperature of the heating flow path. Furthermore, the heating flow path can smoothly conduct the heat to the vehicle interior space through a top heat-conducting layer group located on top of the heating layer. This achieves heating of the vehicle interior space by the vehicle carpet, increases the temperature of the vehicle interior space, improves user comfort, and provides high heating safety, low energy consumption, fast heating speed, and high heating efficiency, effectively enhancing the user experience.

[0007] According to some embodiments of the present invention, the heating flow path has an inlet and an outlet located on both sides of the vehicle carpet, and the heating flow path is connected between the inlet and the outlet. The first heat exchanger has a first heat exchange flow path and a second heat exchange flow path. The inlet is connected to one end of the first heat exchange flow path and the outlet is connected to the other end of the first heat exchange flow path to form a circulation flow path. The second heat exchange flow path is connected to the heat source flow path, and the first heat exchange flow path exchanges heat with the second heat exchange flow path.

[0008] According to some embodiments of the present invention, a circulating water pump is provided between one end of the first heat exchange flow path and the water inlet, and the circulating water pump is used to transport the heating medium in the heating flow path to the first heat exchange flow path and circulate the heating medium. And / or, it also includes a temperature detection element, which is disposed at the water inlet and is used to detect the temperature of the heating medium in the heating flow path.

[0009] According to some embodiments of the present invention, the vehicle carpet has a heating layer comprising a plurality of heating modules arranged in layers or in parallel, each heating module having a sub-flow path formed therein, and the sub-flow paths of each heating module being connected in sequence to form the heating flow path.

[0010] According to some embodiments of the present invention, the heating module of the vehicle carpet is made of graphene-modified high-density polyethylene composite material.

[0011] According to some embodiments of the present invention, the bottom buffer heat insulation layer group includes a protective layer located on the side of the heating layer away from the top heat conducting layer group. The protective layer has a plurality of spaced-apart mounting grooves on the side surface facing the heating layer, and a plurality of heating modules are correspondingly and limitedly installed in the plurality of mounting grooves.

[0012] According to some embodiments of the present invention, the bottom buffer insulation layer group of the vehicle carpet further includes a sound-absorbing layer and a buffer sound insulation layer, the buffer sound insulation layer being located between the protective layer and the sound-absorbing layer, and the buffer sound insulation layer having a raised reinforcing structure.

[0013] According to some embodiments of the present invention, the top heat-conducting layer group of the vehicle carpet includes a heat-conducting protective layer and a heat-conducting blanket surface layer, wherein the heat-conducting protective layer is located between the heating layer and the heat-conducting blanket surface layer, and the heat-conducting protective layer is provided with a plurality of spaced-apart heat dissipation holes; And / or, the heating flow path is connected to the water supply tank, and the water supply tank is used to replenish the heating medium to the heating flow path.

[0014] The present invention also proposes an in-vehicle heating system.

[0015] According to an embodiment of the present invention, the in-vehicle heating system includes a compressor, a first heat exchanger, a second heat exchanger, and a vehicle carpet as described in any of the above embodiments. The first heat exchanger is installed at the front of the driver's cabin. The compressor, the first heat exchanger, and the second heat exchanger are connected through a reversing valve to form a switchable heat source flow path. The heating flow path exchanges heat with the heat source flow path through the first heat exchanger.

[0016] The present invention also proposes a vehicle.

[0017] The vehicle according to the embodiments of the present invention includes the vehicle carpet as described in any of the above embodiments or the in-vehicle heating system as described in the above embodiments.

[0018] The advantages of the in-vehicle heating system, the vehicle, and the aforementioned vehicle carpet compared to the prior art are the same and will not be repeated here.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of a vehicle carpet according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the in-vehicle heating system according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the heating flow path according to an embodiment of the present invention.

[0021] Figure label: 1000 in-vehicle heating system Vehicle carpet 100, Top thermally conductive layer 1, thermally conductive protective layer 11, thermally conductive blanket surface layer 12, Bottom buffer insulation layer 2, protective layer 21, insulation layer 22, sound-absorbing layer 23, buffer sound insulation layer 24. Heating layer 3, heating flow path 31, water inlet 311, water outlet 312. Compressor 200, first heat exchanger 300, first heat exchange flow path 301, second heat exchange flow path 302, second heat exchanger 400, heat source flow path 500, water supply tank 600, circulating water pump 700, outlet valve 801, inlet valve 802. Detailed Implementation

[0022] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 invention based on the specific circumstances.

[0024] Unless otherwise specified, the front-back direction in this application refers to the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction refers to the lateral direction of the vehicle, i.e., the Y direction; and the up-down direction refers to the vertical direction of the vehicle, i.e., the Z direction.

[0025] The following is for reference. Figures 1-3 The vehicle carpet 100 according to an embodiment of the present invention can achieve flow path heating of the vehicle interior space, increase the temperature of the vehicle interior space, improve the user's riding comfort, and has high heating safety, low energy consumption, fast heating speed and high heating efficiency, which can effectively improve the user's user experience.

[0026] like Figures 1-3 As shown, a vehicle carpet 100 according to an embodiment of the present invention includes: a top heat-conducting layer group 1, a bottom buffer heat-insulating layer group 2, and a heating layer 3.

[0027] The heating layer 3 is mainly used to generate heat to heat the interior space of the vehicle. The heating layer 3 is installed between the top heat-conducting layer group 1 and the bottom buffer heat insulation layer group 2. That is, the top heat-conducting layer group 1 is located on the upper side of the heating layer 3, and the bottom buffer heat insulation layer group 2 is located on the lower side of the heating layer 3. The top heat-conducting layer group 1 is the top structure of the vehicle carpet 100, which is mainly used to transfer the heat in the heating layer 3 to the interior space of the vehicle. The bottom buffer heat insulation layer group 2 is the bottom structure of the vehicle carpet 100, which is mainly used to isolate the noise of the vehicle chassis, reduce the noise transmission to the cabin, improve the quietness of the vehicle interior, and also to buffer and dampen vibration, improve the comfort of the passengers. At the same time, the bottom buffer heat insulation layer group 2 can also isolate the heat of the heating layer 3 from the vehicle chassis and the heat of the vehicle chassis from the heating layer 3, thereby improving the heat conduction effect of the heating layer 3 to the interior of the vehicle.

[0028] Furthermore, a heating flow path 31 is formed in the heating layer 3, and a first heat exchanger 300 is connected in series in the heating flow path 31. The heating flow path 31 exchanges heat with the external heat source flow path 500 through the first heat exchanger 300, and the heating flow path 31 is adapted to conduct heat to the vehicle interior space through the top heat-conducting layer group 1.

[0029] Specifically, the heating layer 3 can have a closed cavity to form a heating flow path 31. The heating medium can flow along the extension direction of the heating flow path 31 within it. The heating medium can be water, an aqueous solution of ethylene glycol / propylene glycol, etc. Preferably, water is used as the heating medium because it is low-cost and has a fast heating speed. The heating flow path 31 is connected in series with a first heat exchanger 300, which can be located in an external heat source flow path 500. A refrigerant flows through the heat source flow path 500 and can flow into the first heat exchanger 300, ensuring that the first heat exchanger 300 contains refrigerant. The refrigerant can be R410A, R32, R290 (propane), CO2 (R744), etc. Preferably, R290 (propane) is used. Higher-temperature refrigerant can exchange heat with the heating medium in the heating flow path 31, i.e., the refrigerant will cool the heated medium. The temperature of the heating medium is transferred to the heating medium to increase its temperature. That is, the heating flow path 31 exchanges heat with the external heat source flow path 500 through the first heat exchanger 300. The heated medium, after its temperature is raised, flows in the heating flow path 31 and can transfer heat to the top heat-conducting layer group 1. The heat is then conducted to the vehicle interior space through the top heat-conducting layer group 1, thereby raising the temperature of the vehicle interior space and improving the user experience. Furthermore, the heating medium in the heating flow path 31 circulates continuously to exchange heat with the refrigerant in the external heat source flow path 500, which can continuously heat the vehicle interior space and ensure a stable temperature inside the vehicle.

[0030] It should be noted that the heating medium in the heating flow path 31 can also exchange heat with the refrigerant in the external heat source flow path 500, transferring heat from the heating medium to the refrigerant, thereby cooling the heating medium. The heating medium then circulates in the heating flow path 31, transferring cold energy to the top heat-conducting layer 1, which then conducts the cold energy to the vehicle interior, cooling the interior and improving the user experience. Furthermore, the continuous circulation of the heating medium in the heating flow path 31 allows for continuous heat exchange with the refrigerant in the external heat source flow path 500, ensuring continuous cooling of the vehicle interior and maintaining a stable interior temperature. The heating flow path 31 of the vehicle carpet 100 can work together with the external heat source flow path 500 to transfer heat or cold energy into the vehicle interior, increasing the heating or cooling rate of the interior space, achieving rapid heating or cooling, and improving user comfort. The first heat exchanger 300 can be an existing heat exchanger in the heat source flow path 500 or a newly added heat exchanger.

[0031] In actual design, the heating layer 3 can be integrally formed with a heating flow path 31, or it can be formed by setting a first flow channel groove and a second flow channel groove on two heating plates respectively, and splicing the first flow channel groove and the second flow channel groove together to close the flow channel groove, that is, forming a closed hollow heating flow path 31. It can be flexibly set according to needs and is not limited to the embodiment described herein.

[0032] Therefore, by setting up a heating layer 3 with a heating flow path 31 connected in series with the first heat exchanger 300, the heating flow path 31 can exchange heat with the external heat source flow path 500 through the first heat exchanger 300, thereby raising the temperature of the heating flow path 31. Then, the heat from the heating flow path 31 can be smoothly conducted to the vehicle interior space through the top heat-conducting layer group 1 located on top of the heating layer 3, realizing the heating of the vehicle interior space by the vehicle carpet 100, increasing the temperature of the vehicle interior space, and improving the user's riding comfort. Compared with electric heating, this application uses a heating medium circulating within the heating flow path 31, eliminating the risk of leakage and electromagnetic radiation, improving heating safety, saving energy and reducing consumption, and solving the problems of high energy consumption and poor safety of existing heating methods. At the same time, the bottom buffer insulation layer group 2 can isolate heat from being transferred to the vehicle chassis, and the top heat-conducting layer group 1 can quickly transfer heat to the vehicle interior space, improving the heating speed, improving the heat conduction efficiency, and thus improving the heating efficiency, while also effectively ensuring the NVH performance in the cabin.

[0033] According to an embodiment of the present invention, the vehicle carpet 100 is provided with a heating layer 3 having a heating flow path 31 and connected in series with a first heat exchanger 300. The heating flow path 31 can exchange heat with an external heat source flow path 500 through the first heat exchanger 300, thereby raising the temperature of the heating flow path 31. Then, the heat of the heating flow path 31 can be smoothly conducted to the interior space through the top heat-conducting layer group 1 located on top of the heating layer 3, thereby heating the interior space of the vehicle carpet 100, increasing the interior space temperature, improving the user's riding comfort, and having high heating safety, low energy consumption, fast heating speed, and high heating efficiency, which can effectively improve the user's user experience.

[0034] In some embodiments, the heating flow path 31 has an inlet 311 and an outlet 312 located on both sides of the vehicle carpet 100, respectively. The heating flow path 31 connects the inlet 311 and the outlet 312, that is, the heating flow path 31 extends to both sides of the vehicle carpet 100. In this way, the heating medium that has heated up after heat exchange can enter the heating flow path 31 from the inlet 311 and flow along the heating flow path 31 to conduct heat to the vehicle interior space through the entire vehicle carpet 100, thereby increasing the heat conduction area and improving the heating rate of the vehicle interior space. Then, the heating medium can flow out from the inlet 311 and exchange heat with the external heat source flow path 500 again, continuously circulating in the heating flow path to continuously heat the vehicle interior space.

[0035] The first heat exchanger 300 has a first heat exchange flow path 301 and a second heat exchange flow path 302. The inlet 311 is connected to one end of the first heat exchange flow path 301 and the outlet 312 is connected to the other end of the first heat exchange flow path 301 to form a circulation flow path. The second heat exchange flow path 302 is connected to the heat source flow path 500, and the first heat exchange flow path 301 exchanges heat with the second heat exchange flow path 302.

[0036] Therefore, when the refrigerant circulates in the external heat source flow path 500, the refrigerant flows through the second heat exchange flow path 302, and the refrigerant transfers heat to the second heat exchange flow path 302, causing the temperature of the second heat exchange flow path 302 to rise. The heating medium in the heating flow path 31 can continuously circulate in the circulation path. When the heating medium flows to the first heat exchange flow path 301, the heating medium can absorb the heat of the refrigerant in the second heat exchange flow path 302. That is, the first heat exchange flow path 301 and the second heat exchange flow path 302 exchange heat, causing the temperature of the heating medium to rise. Then, the heated heating medium can continuously circulate and continuously exchange heat with the refrigerant in the second heat exchange flow path 302, so that the first heat exchange flow path 301 and the second heat exchange flow path 302 continuously exchange heat.

[0037] Thus, through the two heat exchange flow paths within the first heat exchanger 300, the heating flow path 31 exchanges heat with the external heat source flow path 500 via the first heat exchanger 300. This is flexible and convenient, the heating method is simple and reliable, easy to implement, and has a wide range of applications.

[0038] In some embodiments, a circulating water pump 700 is provided between one end of the first heat exchange flow path 301 and the water inlet 311. The circulating water pump 700 is used to transport the heating medium in the heating flow path 31 to the first heat exchange flow path 301 and circulate the heating medium.

[0039] Specifically, the circulating water pump 700 is used to provide power for the heating medium, pushing the heating medium in the heating channel to flow into the first heat exchange channel 301, so that the heating medium can exchange heat with the refrigerant in the second heat exchange channel. After heat exchange, the heating medium can flow smoothly into the heating channel 31 to stably deliver heat. In other words, the circulating water pump 700 can drive the heating medium to continuously circulate in the circulating channel to ensure stable heat delivery.

[0040] In some embodiments, the vehicle carpet 100 further includes a temperature detection element disposed at the water inlet 311, which is used to detect the temperature of the heating medium in the heating flow path 31.

[0041] Therefore, by continuously monitoring the temperature of the heating medium in the heating flow path 31 in real time through the temperature detection device at the water inlet, the control system can stop the circulating water pump 700 when the temperature of the heating medium is equal to the first set temperature, that is, stop the circulation of the heating medium and stop heating the vehicle interior, so that the temperature inside the vehicle is kept constant, preventing the temperature inside the vehicle from being too high, causing physical discomfort to the passengers and affecting the riding comfort; and when the temperature of the heating medium is lower than the second set temperature, the circulating water pump 700 is started, and the heating layer 3 starts to work, so that the heating medium continues to circulate and continuously exchange heat to increase the temperature inside the vehicle.

[0042] In practical designs, the first set temperature can be set to 36℃, 37℃, 38℃, etc., and the second set temperature can be set to 16℃, 17℃, 18℃, etc., which can be flexibly set according to actual needs. The temperature sensing element can be constructed as a water temperature sensor, which can use a platinum resistance thermometer. The characteristic of a platinum resistance thermometer is that its resistance increases linearly with increasing temperature, resulting in higher control accuracy, better stability, and a wider temperature measurement range. This effectively improves the temperature detection accuracy and range of the temperature sensing element, and extends its service life.

[0043] In some embodiments, the heating layer 3 includes multiple heating modules arranged in layers or side by side, each heating module having a sub-flow path formed therein, and the sub-flow paths of each heating module being connected in sequence to form a heating flow path 31.

[0044] Specifically, the heating layer 3 may include one, two, three, four, or more heating modules. These heating modules can be arranged in layers or side-by-side along the width, length, or other directions of the vehicle carpet 100. In other words, the heating modules can be configured as a layered structure, with multiple layered structures arranged in layers or side-by-side. For example, in a layered arrangement, multiple layered structures can be placed vertically and stacked horizontally; or, in a side-by-side arrangement, multiple layered structures can be laid flat horizontally and arranged side-by-side along the width, length, or other directions of the vehicle. Each heating module has a cavity to form sub-flow paths, thus forming multiple sub-flow paths. Each sub-flow path has an inlet 311 and an outlet 312. In two adjacent sub-flow paths, the inlet of one sub-flow path is connected to the outlet 312 of the other sub-flow path, thereby allowing multiple sub-flow paths to be connected sequentially to form an overall heating flow path 31, ensuring the circulation of the heating medium within the multiple heating modules.

[0045] Therefore, by configuring the heating layer 3 to include multiple heating modules, the manufacturing convenience of the heating layer 3 is improved. Specifically, by configuring the heating modules as a layered structure, the heat dissipation area of ​​the heating modules can be increased, which is beneficial to improving heat dissipation efficiency. Furthermore, by dissipating heat simultaneously through multiple heating modules, the temperature of the heating layer 3 can be effectively reduced, achieving heat dissipation for the vehicle carpet 100 and preventing damage to the top heat-conducting layer 1 and the bottom buffer insulation layer 2 due to excessive temperature, which could lead to deformation of the vehicle carpet 100 or the generation of odors. The layered structure of the heating modules also improves thermal conductivity.

[0046] In practical design, the heating module can be manufactured by injection molding. The various sub-flow paths can be connected via threaded fittings; one end of the threaded fitting can be connected to the inlet 311 of one heating module, and the other end can be connected to the outlet 312 of an adjacent heating module, thus connecting adjacent sub-flow paths. The width or diameter of the sub-flow paths within the heating membrane assembly can be set to 2mm, 3mm, 4mm, etc., allowing for flexible configuration.

[0047] In some embodiments, the heating module is made of graphene-modified high-density polyethylene composite material.

[0048] Specifically, graphene-modified high-density polyethylene (HDPE) composite material is a high-performance polymer composite material obtained by adding graphene as a modifying filler to high-density polyethylene (HDPE) as the matrix. High-density polyethylene (HDPE) itself has the advantages of good corrosion resistance, easy processing, and low cost, but it has problems with insufficient thermal conductivity, antistatic properties, and mechanical properties. Graphene is one of the nanomaterials with the best known thermal and electrical conductivity. By uniformly dispersing graphene in the HDPE matrix, a thermally / electrically conductive network can be formed, while enhancing the mechanical strength of the matrix, ultimately resulting in a composite material with superior performance.

[0049] Therefore, by using graphene-modified high-density polyethylene composite material for the heating module, the thermal conductivity of the heating module can be effectively improved, thereby enhancing the thermal conductivity of the heating layer 3. This facilitates the efficient transfer of heat from the heating channel to the top heat-conducting layer 1, reducing heat loss and effectively improving the heating efficiency of the vehicle interior. Simultaneously, it enhances the structural strength and deformation resistance of the heating module, effectively preventing deformation and breakage at high temperatures, thus improving the stability and service life of the heating layer 3. Furthermore, its good antistatic properties prevent the accumulation of static electricity that could lead to safety hazards.

[0050] In some embodiments, the bottom buffer insulation layer group 2 includes a protective layer 21, which is located on the side of the heating layer 3 away from the top heat-conducting layer group 1. The protective layer 21 has a plurality of spaced mounting grooves on the side surface facing the heating layer 3, and a plurality of heating modules are correspondingly and installed in the plurality of mounting grooves.

[0051] Specifically, the protective layer 2121 is used to protect the heating layer 3 and prevent it from being damaged. The protective layer 21 is located on the side of the heating layer 3 facing away from the top heat-conducting layer group 1, that is, the upper surface of the protective layer 21 is connected to the lower surface of the heating layer 3. Two, three, four or more spaced mounting slots can be provided on the upper surface of the protective layer 21, that is, the side facing the heating layer 3. The distribution direction of the multiple mounting slots is the same as the distribution direction of the multiple heating modules, and the number of mounting slots is the same as the number of heating modules. The shape and size of each mounting slot matches the shape and size of each heating module. In this way, each heating module can be installed in the corresponding mounting slot. The inner peripheral wall of the mounting slot can abut against the outer peripheral surface of the heating module, thereby realizing the limiting installation and fixing of multiple heating modules. This not only facilitates the placement and installation of heating modules, but also improves the fixing effect of heating modules, and can effectively prevent the heating modules from shaking, shifting, or falling during vehicle operation.

[0052] In practical design, the protective layer 21 can be extruded from polyester (PET), i.e., polyethylene terephthalate. PET has excellent mechanical properties, including tensile strength, impact resistance, abrasion resistance, good dimensional stability, and low deformation rate over long-term use; it also has good chemical stability, being resistant to most acids, alkalis, organic solvents, oils, and corrosion; and it is flexible in processing, capable of injection molding, extrusion, and spinning, and can be made into fibers, sheets, or films, with controllable costs. This allows the protective layer 21 to be designed as a very thin protective film, and a mounting groove of a certain height can be directly formed on the upper surface of the protective layer 21 to effectively protect the heating module and prevent damage to it.

[0053] In actual design, the height of the mounting groove on the upper surface of the protective layer 21 can be set to 1mm, 1.5mm, 2mm, 2.5mm, 3mm, etc., which can be flexibly set according to actual needs and adapted to the size of the heating module.

[0054] In some embodiments, the bottom buffer insulation layer group 2 further includes a sound-absorbing layer and a buffer sound insulation layer 24, the buffer sound insulation layer 24 being located between the protective layer and the sound-absorbing layer, and the buffer sound insulation layer 24 having a raised reinforcing structure.

[0055] Specifically, such as Figure 1 As shown, the bottom buffer heat insulation layer group 2 also includes a sound-absorbing layer and a buffer sound insulation layer 24. The sound-absorbing layer is mainly used to absorb noise and reduce the noise transmitted from the vehicle chassis to the cabin. The buffer sound insulation layer 24 is mainly used to achieve buffering and vibration reduction and noise transmission isolation. That is, the buffer sound insulation layer 24 can absorb the vibration generated by road bumps and reduce the direct transmission from the vehicle chassis to the cabin, which can reduce the bumpy feeling of driving and riding. At the same time, it can also reduce sheet metal resonance, avoid interior noise during long-term use, and block road noise, tire noise, and low-frequency engine noise transmitted from the vehicle chassis. It also has a heat insulation function, which can block the heat from the engine and exhaust pipe from being transferred to the cabin. In summer, it can reduce the temperature of the foot area and reduce the impact of chassis heat on the air conditioning effect in the car. At the same time, it isolates the heat transferred from the heating layer 3 to the vehicle chassis, ensuring the heating effect of the heating layer 3.

[0056] The buffer sound insulation layer 24 is located between the protective layer and the sound absorption layer. That is, the upper surface of the buffer sound insulation layer 24 is connected to the lower surface of the protective layer, and the lower surface of the buffer sound insulation layer 24 is connected to the lower surface of the sound absorption layer. The lower surface of the sound absorption layer is the bottom layer surface of the vehicle carpet 100.

[0057] The upper surface of the sound insulation layer 24 can be provided with a raised reinforcing structure. For example, a downward-protruding raised reinforcing structure can be provided on the upper surface of the sound insulation layer 24, and an upward-protruding raised reinforcing structure can be provided on the upper surface of the sound insulation layer 24. The raised reinforcing structure enhances the mechanical strength and wear resistance of the sound insulation layer 24 and improves its service life.

[0058] In practical design, the sound-absorbing layer can be made of polyurethane foam, which has a large number of tiny, interconnected or partially closed pores. When sound waves are incident on the material surface, some are reflected, while others enter the material. In the porous structure, the sound waves cause air molecules to vibrate, rubbing against the pore walls and converting sound energy into heat energy, which is then absorbed. Simultaneously, polyurethane itself has damping properties, effectively dissipating the energy generated by structural vibrations and thus suppressing the transmission of vibration noise. Therefore, it can effectively absorb noise from the vehicle chassis, engine compartment, wind noise, and tire noise, reducing noise transmission to the passenger compartment.

[0059] The foam body has elastic deformation capability, which can block the transmission of vibration of the body sheet metal, suppress sheet metal resonance and abnormal noise, and buffer the structural vibration caused by driving bumps, thereby achieving shock absorption and buffering; the foam interior seals in still air with low thermal conductivity, which blocks the high temperature of the engine compartment and the conduction of cold and hot air from outside the vehicle to the vehicle interior, assists in the thermal management of the whole vehicle, reduces the energy consumption of air conditioning and heat pump, thereby achieving heat insulation and preventing external heat from entering the heating layer 3 and affecting it.

[0060] The sound insulation and buffer layer 24 can be made of POE (polyolefin elastomer), a high-performance thermoplastic elastomer formed by copolymerizing ethylene with α-olefins (such as 1-butene and 1-octene). It possesses high resilience and a microporous structure, allowing it to absorb vehicle vibrations and suppress sheet metal resonance noise through its own elasticity. Its internal micropores dissipate sound wave energy, blocking road and tire noise from being transmitted into the cabin. This material is resistant to high and low temperatures, anti-aging, and not easily becomes brittle. It has significant lightweight advantages and can stably achieve cushioning and sound insulation effects over long-term use. The raised reinforcing structure on the sound insulation and buffer layer 24 can be manufactured using injection molding.

[0061] In the actual preparation of the sound-absorbing layer and the buffer sound insulation layer 24, the buffer sound insulation layer 24 can be injection molded first, and then the foaming material, namely polyurethane foaming material, is injected into the buffer sound insulation layer 24 through the foaming injection gun in the sound-absorbing layer preparation mold, so that the sound-absorbing layer and the buffer sound insulation layer 24 together form the bottom buffer heat insulation layer group 2.

[0062] In other embodiments, such as Figure 1As shown, the bottom buffer insulation layer group 2 also includes an insulation layer 22, which is located between the protective layer 21 and the buffer sound insulation layer 24. That is, the lower surface of the protective layer 21 is connected to the upper surface of the insulation layer 22, and the lower surface of the insulation layer 22 is connected to the upper surface of the buffer sound insulation layer 24.

[0063] The heat insulation layer 22 is used to prevent the heat from the heating layer 3 from radiating to the lower carpet material layer, which would cause the material to age and develop odors due to long-term heating. In other words, the heat insulation layer 22 can effectively block the heat from the heating layer 3 from being transferred to the sound absorption layer and the buffer sound insulation layer 24, causing the sound absorption layer material and the buffer sound insulation layer 24 material to be affected by heat, resulting in deformation, aging, and odors.

[0064] In actual design, the thickness of the heat insulation layer 22 can be set to 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, etc. The heat insulation layer 22 can be laminated to the surface of the buffer sound insulation layer 24 by hot pressing to reduce heat loss in the vehicle.

[0065] In some embodiments, the top thermally conductive layer group 1 includes a thermally conductive protective layer 11 and a thermally conductive blanket layer 12. The thermally conductive protective layer 11 is located between the heating layer 3 and the thermally conductive blanket layer 12, and the thermally conductive protective layer 11 is provided with a plurality of spaced-apart heat dissipation holes.

[0066] Specifically, such as Figure 1 As shown, the top heat-conducting layer group 1 includes a heat-conducting protective layer 11 and a heat-conducting blanket surface layer 12. The heat-conducting protective layer 11 is located between the heating layer 3 and the heat-conducting blanket surface layer 12, that is, the upper surface of the heat-conducting protective layer 1 is connected to the lower surface of the heat-conducting blanket surface layer 12, and the lower surface of the heat-conducting protective layer 1 is connected to the upper surface of the heating layer 3. The heat-conducting protective layer 11 protects the heating layer 3 and quickly transfers heat to the passenger compartment, improving heat transfer efficiency, while effectively preventing electromagnetic radiation from the high-power battery. The heat-conducting blanket surface layer 12 is the outer surface of the vehicle carpet 100.

[0067] In actual design, the thermally conductive protective layer 11 can be set as an aluminum foil layer, that is, it is made of aluminum foil material. Aluminum foil has extremely low thermal radiation emissivity, which can effectively reduce the heat radiation transfer of heating layer 3 to the vehicle interior. At the same time, aluminum foil has good thermal conductivity, which can quickly transfer heat to the thermally conductive blanket surface layer 12, and then to the vehicle interior, which can effectively improve the efficiency of temperature rise in the vehicle interior. In addition, aluminum foil is lightweight and easy to process, which is conducive to achieving the lightweighting of vehicle carpet 100.

[0068] The heat-conducting blanket surface layer 12 can be made of graphene-modified polyester fiber fabric. Its warp weave process is plain weave, and the weave direction is perpendicular to the direction of the heating flow path 31. Due to the addition of graphene, the graphene-modified polyester fiber has good antibacterial and deodorizing properties, low odor, and overall improves the comfort of passengers in the passenger cabin.

[0069] Furthermore, the surface of the thermally conductive protective layer 11 can be anodized and punched to form multiple spaced heat dissipation holes. This allows the heat from the heating layer 3 to dissipate through these holes, giving the thermally conductive protective layer 11 excellent heat dissipation performance and enabling rapid heat dissipation into the passenger compartment. The diameter of the heat dissipation holes can be set to 5mm, 6mm, 7mm, 8mm, etc., and can be flexibly set according to actual needs, not limited to the embodiments described herein.

[0070] Therefore, the vehicle carpet 100 of the present invention, through its multi-layer composite structure, effectively improves the heating speed of the vehicle interior space and enhances heat transfer efficiency. Simultaneously, it ensures good sound insulation, maintains the softness and comfort of the vehicle carpet 100, and features a compact and aesthetically pleasing overall structure. The inclusion of a thermally conductive protective layer 11 effectively prevents heat loss, material aging, and electromagnetic radiation, thereby reducing energy consumption and improving the safety of passengers.

[0071] In other embodiments, the heating flow path 31 is connected to the water supply tank 600, which is used to replenish the heating medium to the heating flow path 31.

[0072] Specifically, the water replenishment tank 600 stores heating medium. The water replenishment tank 600 can be connected to the heating flow path 31 through connecting pipes so that the heating flow path 31 is connected to the water replenishment tank 600. In this way, when the heating medium in the heating flow path 31 is insufficient, the water replenishment tank 600 can replenish the heating medium in the heating flow path 31 in a timely manner to ensure that the heating medium in the heating flow path 31 is sufficient and can effectively exchange heat.

[0073] The present invention also proposes an in-vehicle heating system 1000.

[0074] According to an embodiment of the present invention, the in-vehicle heating system 1000 includes a compressor 200, a first heat exchanger 300, a second heat exchanger 400, and a vehicle carpet 100 of any of the above embodiments. The first heat exchanger 300 is installed at the front of the driver's cabin. The compressor 200, the first heat exchanger 300, and the second heat exchanger 400 are connected through a reversing valve to form a switchable heat source flow path 500. The heating flow path 31 exchanges heat with the heat source flow path 500 through the first heat exchanger 300.

[0075] Specifically, such as Figure 2As shown, the in-vehicle heating system 1000 includes a compressor 200, a first heat exchanger 300, a second heat exchanger 400, and a vehicle carpet 100. The heating flow path 31 of the vehicle carpet 100 is connected in series with the first heat exchanger 300. When the in-vehicle heating system 1000 is in heating mode, the compressor 200 can draw in low-temperature, low-pressure gaseous refrigerant, compress it into a high-temperature, high-pressure gaseous state, and then the high-temperature, high-pressure gaseous refrigerant flows into the second heat exchange flow path 302 of the first heat exchanger 300 (in-vehicle condenser). Heat is transferred to the air inside the vehicle through forced convection by a fan, raising the air temperature (heating). During this process, the refrigerant condenses into a high-pressure, medium-temperature liquid state. As the refrigerant flows through the first heat exchanger 300, it exchanges heat with the heating medium in the heating flow path 31 to transfer heat to the carpet. The heat medium raises the temperature of the heating medium; subsequently, the high-pressure liquid refrigerant in the heat source flow path 500 is throttled and depressurized by the expansion valve (or electronic expansion valve), becoming a low-temperature, low-pressure mist mixture. The low-temperature, low-pressure mist refrigerant enters the second heat exchanger 400 (external evaporator), absorbs heat from the external environment, and evaporates into a low-temperature, low-pressure gaseous state. Simultaneously, the heating medium after heat exchange in the first heat exchange flow path 301 flows into the heating flow path 31 to transfer heat to the air inside the vehicle; then, the low-temperature, low-pressure gaseous refrigerant is re-drawn into the compressor 200, completing the heating cycle. Thus, the vehicle interior heating system 1000 can simultaneously heat the air inside the vehicle through the vehicle carpet 100 and the first heat exchanger 300, raising the air temperature inside the vehicle rapidly.

[0076] When the in-vehicle heating system 1000 is in cooling mode, the compressor 200 draws in low-temperature, low-pressure gaseous refrigerant and compresses it into a high-temperature, high-pressure gaseous state. This high-temperature, high-pressure gaseous refrigerant flows into the second heat exchanger 400 (external condenser), where it dissipates heat through the fan and airflow, condensing into a high-pressure, medium-temperature liquid state. The high-pressure liquid refrigerant then undergoes throttling and pressure reduction via the expansion valve, becoming a low-temperature, low-pressure mist mixture. This low-temperature, low-pressure mist refrigerant then enters the second heat exchange channel of the first heat exchanger 300 (in-vehicle evaporator), absorbing heat from the vehicle interior and... The refrigerant evaporates into a low-temperature, low-pressure gaseous state, cooling the air inside the vehicle. Simultaneously, the heating medium in heating flow path 31 flows into the first heat exchange channel to exchange heat with the refrigerant in the second heat exchange channel. The refrigerant absorbs the heat from the heating medium, lowering the temperature of the heating medium in the first heat exchange channel. Then, the heating medium, after heat exchange in the first heat exchange channel 301, flows back into heating flow path 31 to transfer heat to the air inside the vehicle. The low-temperature, low-pressure gaseous refrigerant exiting the second heat exchange channel is re-drawn into the compressor 200, completing the refrigeration cycle. Therefore, the vehicle interior heating system 1000 can simultaneously cool the air inside the vehicle through the vehicle carpet 100 and the first heat exchanger 300, reducing the air temperature rapidly.

[0077] Among them, the reversing valve (such as a four-way valve) can switch the refrigerant flow direction by reversing, so that the compressor 200, the first heat exchanger 300 and the second heat exchanger 400 can be connected in different modes to form different heat source flow paths 500.

[0078] In practical design, such as Figure 2 As shown, an inlet valve 802 can also be installed between the inlet 311 and the first heat exchange flow path 301, and an inlet valve 802 can be installed between the outlet 312 and the first heat exchange flow path 301, so as to realize the opening and closing of the inlet 311 and the outlet 312.

[0079] The present invention also proposes a vehicle.

[0080] The vehicle according to the embodiments of the present invention includes the vehicle carpet 100 of any of the above embodiments or the in-vehicle heating system 1000 of the above embodiments.

[0081] According to an embodiment of the present invention, by setting the above-mentioned in-vehicle heating system 1000, the vehicle's cooling and heating efficiency can be effectively improved, enhancing the user experience. Through the vehicle carpet 100, by setting a heating layer 3 with a heating flow path 31 connected in series with the first heat exchanger 300, the heating flow path 31 can exchange heat with the external heat source flow path 500 through the first heat exchanger 300, achieving a temperature increase in the heating flow path 31. Then, the heat from the heating flow path 31 can be smoothly conducted to the interior space through the top heat-conducting layer group 1 located on top of the heating layer 3, achieving heating of the interior space by the vehicle carpet 100, increasing the interior temperature, improving user comfort, and exhibiting high heating safety, low energy consumption, fast heating speed, and high heating efficiency, effectively enhancing the user experience.

[0082] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0083] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vehicle carpet, characterized by, include: Top heat-conducting layer group (1) and bottom buffer heat insulation layer group (2); A heating layer (3) is installed between the top heat-conducting layer group (1) and the bottom buffer heat insulation layer group (2); The heating layer (3) has a heating flow path (31) formed therein, and a first heat exchanger (300) is connected in series in the heating flow path (31). The heating flow path (31) exchanges heat with the external heat source flow path (500) through the first heat exchanger (300), and the heating flow path (31) is adapted to conduct heat to the vehicle interior space through the top heat-conducting layer group (1).

2. The vehicle carpet according to claim 1, characterized in that, The heating flow path (31) has an inlet (311) and an outlet (312) located on both sides of the vehicle carpet, and the heating flow path (31) is connected between the inlet (311) and the outlet (312). The first heat exchanger (300) has a first heat exchange flow path (301) and a second heat exchange flow path (302). The inlet (311) is connected to one end of the first heat exchange flow path (301) and the outlet (312) is connected to the other end of the first heat exchange flow path (301) to form a circulation flow path. The second heat exchange flow path (302) is connected to the heat source flow path (500). The first heat exchange flow path (301) exchanges heat with the second heat exchange flow path (302).

3. The vehicle carpet according to claim 2, characterized in that, A circulating water pump (700) is provided between one end of the first heat exchange flow path (301) and the water inlet (311). The circulating water pump (700) is used to transport the heating medium in the heating flow path (31) to the first heat exchange flow path (301) and make the heating medium circulate. And / or, it also includes a temperature detection element, which is located at the water inlet (311) and is used to detect the temperature of the heating medium in the heating flow path (31).

4. The vehicle carpet according to claim 1, characterized in that, The heating layer (3) includes multiple heating modules arranged in layers or in parallel. Each heating module has a sub-flow path, and the sub-flow paths of each heating module are connected in sequence to form the heating flow path (31).

5. The vehicle carpet according to claim 4, characterized in that, The heating module is made of graphene-modified high-density polyethylene composite material.

6. The vehicle carpet according to claim 4, characterized in that, The bottom buffer insulation layer group (2) includes a protective layer (21). The protective layer (21) is located on the side of the heating layer (3) away from the top heat-conducting layer group (1). The protective layer (21) has multiple spaced mounting grooves on the side surface facing the heating layer (3). Multiple heating modules are correspondingly and installed in the multiple mounting grooves.

7. The vehicle carpet according to claim 6, characterized in that, The bottom buffer insulation layer group (2) also includes a sound-absorbing layer (23) and a buffer sound insulation layer (24). The buffer sound insulation layer (24) is located between the protective layer (21) and the sound-absorbing layer (23). The buffer sound insulation layer (24) has a raised reinforcing structure.

8. The vehicle carpet according to claim 1, characterized in that, The top heat-conducting layer group (1) includes a heat-conducting protective layer (11) and a heat-conducting blanket surface layer (12). The heat-conducting protective layer (11) is located between the heating layer (3) and the heat-conducting blanket surface layer (12). The heat-conducting protective layer (11) is provided with a plurality of spaced heat dissipation holes. And / or, the heating flow path (31) is connected to the water supply tank (600), which is used to replenish the heating medium to the heating flow path (31).

9. A vehicle interior heating system, characterized in that, The vehicle includes a compressor (200), a first heat exchanger (300), a second heat exchanger (400), and a vehicle carpet according to any one of claims 1-8. The first heat exchanger (300) is installed at the front of the driver's cabin. The compressor (200), the first heat exchanger (300), and the second heat exchanger (400) are connected by a reversing valve to form a switchable heat source flow path (500). The heating flow path (31) exchanges heat with the heat source flow path (500) through the first heat exchanger (300).

10. A vehicle, characterized in that, Includes the vehicle carpet as described in any one of claims 1-8 or the in-vehicle heating system as described in claim 9.

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