Vehicle-mounted floor heating system and vehicle

Abstract

The embodiment of the utility model relates to the technical field of automobiles, in particular to a vehicle-mounted floor heating system and a vehicle, the vehicle-mounted floor heating system is applied to the vehicle and comprises a liquid cooling pipeline, a heating pipeline and a temperature adjusting pipeline, and the liquid cooling pipeline comprises a first liquid inlet and a first liquid outlet; the heating pipeline is laid in a floor of the vehicle, a heating liquid inlet and a heating liquid outlet are formed in the two ends of the heating pipeline respectively, the heating liquid inlet is connected to the first liquid outlet, and the heating liquid outlet is connected to the first liquid inlet; a second liquid inlet and a second liquid outlet are formed in the two ends of the temperature adjusting pipeline respectively, the second liquid inlet is connected to the heating liquid outlet, the second liquid outlet is connected to the heating liquid inlet, and the temperature adjusting pipeline is configured to supplement a cooling medium into the heating pipeline so as to adjust the heat supply temperature of the heating pipeline. The technical problem that effective temperature rise control over the temperature of a floor area in a vehicle is difficult is solved.

Description

Technical Field

[0001] This application relates to the field of automotive technology, and in particular to an on-board floor heating system and vehicle. Background Technology

[0002] With the continuous advancement of automotive technology, the environmental control system inside vehicles has also seen significant development. However, in cold winters, especially in most parts of northern China where winter temperatures average between -15°C and -0°C, the temperature distribution inside the vehicle can affect passenger comfort and driving safety.

[0003] When a vehicle is running, some heat-generating components (such as the electric motor, battery, and electronic control system) generate heat. This heat needs to be carried away by the coolant circulation system and then dissipated into the air through the radiator. Current air conditioning heating systems work by channeling the heated antifreeze from these components into the vehicle's air conditioning unit, where a blower blows the heated air out to create warm air. However, this system often prioritizes heating the upper body area of ​​the occupants, while the floor area, being farther from the air vents, suffers from insufficient warmth for the feet and difficulty in effectively controlling the floor temperature. This not only affects passenger comfort but may also impair driver reaction time during long drives, posing a potential threat to driving safety.

[0004] Therefore, there is an urgent need to solve the technical problem of effectively controlling the temperature of the vehicle floor area in cold environments. Utility Model Content

[0005] In view of this, embodiments of this application provide a vehicle-mounted floor heating system and vehicle to solve the technical problem of difficulty in effectively controlling the temperature of the vehicle floor area.

[0006] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0007] In a first aspect, embodiments of this application provide a vehicle-mounted floor heating system, applied to a vehicle, comprising:

[0008] A liquid cooling pipeline, the liquid cooling pipeline including a first liquid inlet and a first liquid outlet;

[0009] Heating pipes are laid inside the floor of the vehicle. The two ends of the heating pipes are a heating inlet and a heating outlet, respectively. The heating inlet is connected to the first outlet, and the heating outlet is connected to the first inlet.

[0010] A temperature regulating pipeline has a second inlet and a second outlet at its two ends. The second inlet is connected to the heating outlet, and the second outlet is connected to the heating inlet. The temperature regulating pipeline is configured to add cooling medium to the heating pipeline to regulate the heating temperature of the heating pipeline.

[0011] This application provides a vehicle-mounted floor heating system. By laying heating pipes within the vehicle floor, with the heating inlet connected to the first outlet and the outlet connected to the first inlet, the system utilizes heat generated by the liquid-cooled pipes to warm the feet. This achieves efficient reuse of waste heat generated during vehicle operation, improving energy efficiency. Furthermore, a second inlet of a temperature-regulating pipe is connected to the heating outlet, and the second outlet is connected to the heating inlet. This allows the cooling medium flowing out of the heating pipes to be replenished through the temperature-regulating pipe, regulating the temperature of the heating pipes and preventing overheating, thus improving comfort and safety.

[0012] In one possible implementation of this application, the vehicle-mounted floor heating system further includes a first temperature measuring element, a second temperature measuring element, and a third temperature measuring element. The first temperature measuring element is disposed at the first liquid outlet of the liquid cooling pipeline, the second temperature measuring element is disposed at the heating liquid inlet of the heating pipeline, and the third temperature measuring element is disposed in the temperature regulating pipeline.

[0013] In one possible implementation of this application, the temperature control pipeline includes a cold water throttling valve, which is connected in series with the third temperature sensing element on the temperature control pipeline.

[0014] In one possible implementation of this application, the vehicle-mounted underfloor heating system further includes a hot water main throttle valve, which is disposed on the pipeline between the first outlet and the heating inlet;

[0015] The heating pipeline includes a first heating pipeline and a second heating pipeline, which are connected in parallel.

[0016] In one possible implementation of this application, the first heating pipe includes a first heating pipe, which is arranged in the floor of the driver's cabin of the vehicle. The first heating pipe includes at least two first heating pipe segments connected in sequence, and the first heating pipe segments are arranged in an S-shape.

[0017] In one possible implementation of this application, the second heating pipe includes a second heating pipe, which is arranged in the floor of the passenger compartment of the vehicle. The second heating pipe includes at least two second heating pipe segments connected in sequence, and the second heating pipe segments are arranged in an S-shape.

[0018] In one possible implementation of this application, the first heating pipe further includes a first hot water throttling valve, which is connected in series between the first heating element and the heating inlet; and / or,

[0019] The second heating pipe also includes a second hot water throttling valve, which is connected in series between the second heating element and the heating inlet.

[0020] In one possible implementation of this application, the vehicle-mounted floor heating system further includes a heat dissipation pipe, which includes a third liquid inlet, a third liquid outlet, and a radiator. The third liquid inlet is connected to the first liquid outlet, the third liquid outlet is connected to the first liquid inlet, and the radiator is connected between the third liquid inlet and the third liquid outlet.

[0021] In one possible implementation of this application, the vehicle-mounted floor heating system further includes a first three-way valve, which includes a first valve inlet, a first valve outlet, and a second valve outlet. The first valve inlet is connected to the heating liquid inlet, and the first valve outlet and the second valve outlet are respectively connected to the inlet end of the first heating pipe and the inlet end of the second heating pipe.

[0022] The vehicle-mounted floor heating system also includes a second three-way valve, which includes a second valve inlet, a third valve outlet, and a fourth valve outlet. The second valve inlet is connected to the first liquid outlet, and the third valve outlet and the fourth valve outlet are respectively connected to the third liquid inlet and the heating liquid inlet.

[0023] Secondly, embodiments of this application provide a vehicle, including the aforementioned vehicle-mounted floor heating system.

[0024] This application provides a vehicle-mounted underfloor heating system and vehicle that can achieve automatic temperature control. It can reuse the waste heat of the antifreeze after it has cooled down through the underfloor heating system. Based on the heating needs of passengers, and according to the temperatures detected by the first, second, and third temperature measuring elements, it can adjust the opening of the cold water throttle valve and the hot water main throttle valve in real time to control the flow rate of hot water and cold water to the heating pipes, thereby controlling the mixing ratio of cold water and hot water and ensuring that the heating temperature is within the required temperature range, thus achieving automatic temperature control.

[0025] This application provides a vehicle-mounted floor heating system and vehicle that can perform zoned heating and temperature control on the floor areas of the driver's cabin and the passenger cabin, thereby improving passenger comfort.

[0026] This application provides a vehicle-mounted floor heating system that uses antifreeze circulating in liquid cooling pipes to absorb and transfer heat generated by heating components, thereby cooling the heating components, preventing them from overheating, and utilizing waste heat generated by the vehicle's heating components to warm the feet of passengers. This improves the comfort and energy efficiency of the vehicle interior environment and reduces additional energy consumption. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a vehicle-mounted underfloor heating system provided in an embodiment of this application.

[0028] Figure label:

[0029] 10 - Liquid cooling piping;

[0030] 11 - First liquid inlet;

[0031] 12 - First liquid outlet;

[0032] 13-Heating components;

[0033] 20 - Heating pipes;

[0034] 21-First heating pipe;

[0035] 211 - First heating element;

[0036] 212 - First hot water throttle valve;

[0037] 22-Second heating pipe;

[0038] 221 - Second heating element;

[0039] 222 - Second hot water throttle valve;

[0040] 23-Heating liquid inlet;

[0041] 24-Heating liquid outlet;

[0042] 30 - Temperature control piping;

[0043] 31 - Second liquid inlet;

[0044] 32 - Second liquid outlet;

[0045] 33 - Cold water throttle valve;

[0046] 40 - Heat dissipation piping;

[0047] 41 - Third liquid inlet;

[0048] 42 - Third liquid outlet;

[0049] 43-Radiator;

[0050] 50 - First temperature sensing element;

[0051] 60 - Second temperature sensing element;

[0052] 70 - Third temperature sensing element;

[0053] 80 - First three-way valve;

[0054] 81 - First valve inlet;

[0055] 82 - First valve outlet;

[0056] 83 - Second valve outlet;

[0057] 90 - Second three-way valve;

[0058] 91 - Second valve inlet;

[0059] 92 - Third valve outlet;

[0060] 93 - Fourth valve outlet;

[0061] 100-Hot water main throttle valve. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0063] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0064] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0065] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can mean a fixed connection, a detachable connection, or an integral part; it can mean a direct connection or an indirect connection through an intermediate medium.

[0066] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0067] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0068] This application provides a vehicle, which can be a large car, a small car, a special-purpose vehicle, etc. For example, according to vehicle type, the vehicle in this application can be a sedan, an off-road vehicle, a multi-purpose vehicle (MPV), or other types of vehicles. Vehicles generally have wheels, a power source, and a transmission system between the wheels and the power source. The transmission system can transmit the power provided by the power source to the wheels, causing the wheels to rotate and thus driving the vehicle.

[0069] It should be noted that the type of power source for the vehicle is not limited in this embodiment. For example, for gasoline vehicles, the power source can refer to a gasoline engine, diesel engine, or other fuel-powered engine; for electric vehicles, the power source can refer to an electric motor; for hybrid vehicles, the power source can refer to either an engine or an electric motor; and for vehicles powered by other means, the power source can refer to any device that generates power.

[0070] During vehicle operation, some heat-generating components, such as electric motors, batteries, and electronic control systems, generate a large amount of heat. In order to maintain the normal operation of these heat-generating components and prevent overheating, liquid cooling pipes are usually used to circulate coolant, which carries away the heat generated by the heat-generating components in a timely manner and then dissipates it into the air through the radiator, thus effectively managing and dissipating the heat.

[0071] Considering that the heating control of the vehicle floor area is poor, which can easily lead to cold feet or overheating, affecting passenger comfort and driving safety, this application aims to solve the problem of heating and temperature control of the vehicle floor area, thereby improving passenger comfort and driving safety.

[0072] In view of this, this application provides a vehicle-mounted floor heating system. By laying heating pipes within the vehicle floor, the heating pipes utilize the heat generated by the liquid-cooled pipes to warm the feet of the driver and passengers, thus achieving the rational reuse of waste heat generated during vehicle operation. Furthermore, by incorporating a temperature-regulating pipe, the cooling medium flowing out of the heating pipes can be replenished into the heating pipes, achieving temperature regulation and preventing problems such as excessively hot feet, thereby improving vehicle comfort and safety.

[0073] refer to Figure 1 As shown in the figure, this application embodiment provides a vehicle-mounted floor heating system for use in a vehicle, including: a liquid cooling pipe 10, a heating pipe 20, and a temperature regulating pipe 30. The liquid cooling pipe 10 includes a first liquid inlet 11 and a first liquid outlet 12. The heating pipe 20 is laid in the floor of the vehicle, and the two ends of the heating pipe 20 are a heating liquid inlet 23 and a heating liquid outlet 24, respectively. The heating liquid inlet 23 is connected to the first liquid outlet 12, and the heating liquid outlet 24 is connected to the first liquid inlet 11.

[0074] The two ends of the temperature regulating pipe 30 are a second liquid inlet 31 and a second liquid outlet 32, respectively. The second liquid inlet 31 is connected to the heating liquid outlet 24, and the second liquid outlet 32 ​​is connected to the heating liquid inlet 23. The temperature regulating pipe 30 is configured to replenish the heating pipe 20 with cooling medium to regulate the heating temperature of the heating pipe 20.

[0075] This application provides a vehicle-mounted floor heating system. By laying heating pipes 20 within the vehicle floor, with the heating inlet 23 connected to the first outlet 12 and the heating outlet 24 connected to the first inlet 11, the heating pipes 20 utilize the heat generated by the liquid-cooled pipes 10 to achieve foot heating. This allows for the rational reuse of waste heat generated during vehicle operation, improving energy efficiency. Furthermore, by connecting the second inlet 31 of the temperature-regulating pipe 30 to the heating outlet 24 and the second outlet 32 ​​to the heating inlet 23, the cooling medium flowing out of the heating pipes 20 can be replenished through the temperature-regulating pipe 30, achieving temperature regulation of the heating pipes 20 and preventing overheating, thus improving comfort and safety.

[0076] The fluid flowing in the liquid cooling pipe 10, heating pipe 20 and temperature regulating pipe 30 is the aforementioned cooling medium, which includes, but is not limited to, antifreeze or water.

[0077] In some embodiments of this application, the liquid cooling pipeline 10 is used to liquid cool the heat-generating components 13 in the vehicle. The antifreeze flowing in the liquid cooling pipeline 10 absorbs the heat generated by the heat-generating components 13. After absorbing heat, the temperature of the antifreeze in the liquid cooling pipeline 10 rises. Subsequently, the high-temperature antifreeze is pumped into the heating pipeline 20, where it releases heat to heat the floor area of ​​the vehicle, ensuring that the driver and passengers' feet are warm. A portion of the low-temperature antifreeze flowing out of the heating pipeline 20 enters the first inlet 11 of the liquid cooling pipeline 10 to liquid cool the heat-generating components 13 in the vehicle, achieving heat recycling. The remaining portion enters the temperature regulating pipeline 30 from the second inlet 31 to regulate and control the temperature of the heating pipeline 20, improving passenger comfort and driving safety.

[0078] In some embodiments of this application, the heat-generating component 13 includes, but is not limited to, an electric motor, a battery, and an electronic control system.

[0079] This application provides a vehicle-mounted floor heating system. The antifreeze circulating in the liquid cooling pipe 10 absorbs and transfers the heat generated by the heating element 13, thereby cooling the heating element 13, preventing it from overheating, and utilizing the waste heat generated by the vehicle's heating element 13 to warm the feet of the driver and passengers. This improves the comfort and energy efficiency of the vehicle interior environment and reduces additional energy consumption.

[0080] In some embodiments of this application, the vehicle-mounted floor heating system further includes a first temperature measuring element 50, a second temperature measuring element 60, and a third temperature measuring element 70. The first temperature measuring element 50 is disposed at the first liquid outlet 12 of the liquid cooling pipeline 10, the second temperature measuring element 60 is disposed at the heating liquid inlet 23 of the heating pipeline 20, and the third temperature measuring element 70 is disposed in the temperature regulating pipeline 30.

[0081] In some embodiments of this application, the first temperature sensing element 50 is a temperature sensor used to detect the temperature of the first liquid outlet 12 of the liquid cooling pipeline 10. The second temperature sensing element 60 is a temperature sensor used to detect the temperature of the heating inlet 23. The third temperature sensing element 70 is a temperature sensor used to detect the temperature of the temperature regulating pipeline 30.

[0082] In some embodiments of this application, reference is made to Figure 1As shown, the temperature control pipeline 30 includes a cold water throttling valve 33, which is connected in series with the third temperature sensing element 70 on the temperature control pipeline 30. The cold water throttling valve 33 is used to regulate the flow rate of the fluid flowing in the temperature control pipeline 30. The cold water throttling valve 33 can control the flow rate of the fluid by changing the opening of the valve port, thereby regulating the flow rate of the fluid and affecting the overall temperature of the system.

[0083] In some embodiments of this application, the vehicle-mounted underfloor heating system further includes a hot water main throttle valve 100, which is disposed on the pipeline between the first outlet 12 and the heating inlet 23. The hot water main throttle valve 100 is used to regulate the flow rate of fluid input from the liquid cooling pipeline 10 to the heating pipeline 20. The hot water main throttle valve 100 can regulate the flow rate of fluid by changing the opening degree of the valve port.

[0084] In some embodiments of this application, the heating pipe 20 includes a first heating pipe 21 and a second heating pipe 22, which are connected in parallel.

[0085] This structure facilitates independent temperature control of the first heating pipe 21 and the second heating pipe 22, allowing for flexible heat distribution as needed and improving overall energy efficiency and comfort. For example, the heat source can simultaneously provide heat to both the first heating pipe 21 and the second heating pipe 22, or it can provide heat only to one of them, meeting individual heating needs.

[0086] In some embodiments of this application, the first heating pipe 21 includes a first heating pipe 211, which is arranged within the floor of the vehicle's driver's cabin. The first heating pipe 211 includes at least two first heating pipe segments connected in sequence, arranged in an S-shape. The first heating pipe 21 is used to heat the floor area of ​​the vehicle's driver's cabin, achieving an effect similar to underfloor heating, thus ensuring the comfort of the driver and front-seat passengers.

[0087] In some embodiments of this application, the first heating tube 211 includes a plurality of first heating tube segments connected in sequence. The number of first heating tube segments is not specifically limited here, as long as heat can be evenly dissipated to a larger area of ​​the cockpit floor, avoiding local overheating or undercooling. This arrangement can make more effective use of the space under the floor, adapt to the design requirements of different vehicles, increase the heat exchange area, improve the heat transfer efficiency, and make heating faster and more uniform.

[0088] In other possible implementation methods, the first heating tube segment can also be arranged in a serpentine or meandering pattern to ensure uniform heat distribution and increase the heat dissipation area.

[0089] In some embodiments of this application, the second heating pipe 22 includes a second heating pipe 221, which is arranged within the floor of the vehicle's passenger compartment. The second heating pipe 221 includes at least two second heating pipe segments connected in sequence, arranged in an S-shape. The second heating pipe 22 is used to heat the floor area of ​​the vehicle's passenger compartment, achieving an effect similar to underfloor heating, thus ensuring the comfort of rear passengers.

[0090] In some embodiments of this application, the second heating tube 221 includes a plurality of second heating tube segments connected in sequence. The number of second heating tube segments is not specifically limited here, as long as heat can be evenly dissipated to a larger area of ​​the passenger compartment floor. A larger coverage area improves the efficiency of heat transfer, reduces energy loss, and makes heating more rapid and uniform.

[0091] In other possible implementation methods, the second heating tube segment can also be arranged in a serpentine or meandering manner to ensure uniform heat distribution and increase the heat dissipation area.

[0092] In some embodiments of this application, reference is made to Figure 1 As shown, the first heating pipe 21 also includes a first hot water throttling valve 212, which is connected in series between the first heating element 211 and the heating inlet 23. The first hot water throttling valve 212 is used to control the flow rate of the fluid entering the first heating element 211, thereby controlling the heat entering the first heating pipe 21, which helps to achieve precise temperature control of the cockpit floor area.

[0093] In some embodiments of this application, the second heating pipe 22 further includes a second hot water throttling valve 222, which is connected in series between the second heating element 221 and the heating inlet 23. The second hot water throttling valve 222 is used to control the flow rate of the fluid entering the second heating pipe 22, thereby controlling the heat entering the second heating pipe 22, which helps to achieve precise temperature control of the passenger compartment floor area.

[0094] The first hot water throttling valve 212 and the second hot water throttling valve 222 are valves that control fluid flow by changing the cross-sectional area of ​​the channel.

[0095] In some embodiments of this application, the vehicle-mounted floor heating system further includes a heat dissipation pipe 40, which includes a third liquid inlet 41, a third liquid outlet 42, and a radiator 43. The third liquid inlet 41 is connected to the first liquid outlet 12, the third liquid outlet 42 is connected to the first liquid inlet 11, and the radiator 43 is connected between the third liquid inlet 41 and the third liquid outlet 42.

[0096] The third liquid inlet 41 is the inlet of the heat dissipation pipe 40, used to receive fluid from the first liquid outlet 12 so that the fluid flows into the heat dissipation pipe 40 for heat exchange. The third liquid outlet 42 is the outlet of the heat dissipation pipe 40, used to provide fluid to the liquid cooling pipe 10 through the first liquid inlet 11.

[0097] The radiator 43 is a core component of the heat dissipation pipe 40. It is used to dissipate or absorb heat effectively by increasing the contact area between the fluid and the environment through secondary heat exchange, thereby regulating the temperature of the fluid in the liquid cooling pipe 10.

[0098] In some embodiments of this application, the radiator 43 may increase the contact area between the fluid and air or other cooling media through its design such as fins, pipe structures, etc., thereby effectively transferring heat.

[0099] In some embodiments of this application, reference is made to Figure 1 As shown, the vehicle-mounted floor heating system also includes a first three-way valve 80. The first three-way valve 80 includes a first valve inlet 81, a first valve outlet 82, and a second valve outlet 83. The first valve inlet 81 is connected to the heating liquid inlet 23, and the first valve outlet 82 and the second valve outlet 83 are respectively connected to the inlet end of the first heating pipe 21 and the inlet end of the second heating pipe 22. By adjusting the first three-way valve 80, the flow of hot water into the first heating pipe 21 and the second heating pipe 22 can be flexibly controlled, enabling independent control of heating of the floor areas of the driver's cabin and the passenger compartment.

[0100] In some embodiments of this application, the first three-way valve 80 is a solenoid valve, which can automatically adjust the flow distribution according to the real-time temperature requirements, thereby improving the system's response speed and accuracy.

[0101] In some embodiments of this application, the vehicle-mounted floor heating system further includes a second three-way valve 90, which includes a second valve inlet 91, a third valve outlet 92, and a fourth valve outlet 93. The second valve inlet 91 is connected to the first liquid outlet 12, and the third valve outlet 92 and the fourth valve outlet 93 are respectively connected to the third liquid inlet 41 and the heating liquid inlet 23.

[0102] In some embodiments of this application, the second three-way valve 90 is a solenoid valve, which facilitates automated control.

[0103] By adjusting the second three-way valve 90, the flow direction of hot water discharged from the first outlet 12 can be flexibly controlled, enabling the redistribution and circulation of hot water among different system components. By setting the second three-way valve 90, the flow control and circulation of hot water are optimized, providing efficient and flexible thermal management capabilities for vehicle-mounted underfloor heating systems.

[0104] During operation, when the vehicle starts, the liquid cooling line 10 opens due to heat dissipation requirements. The coolant, after being heated by the heating element 13, flows to the second three-way valve 90. The coolant flowing to the second three-way valve 90 is then transported from the third valve outlet 92 to the heat dissipation line 40, where it exchanges heat with the environment through the radiator 43. If underfloor heating is required, a portion of the coolant flowing to the second three-way valve 90 flows from the fourth valve outlet 93 through the hot water main throttle valve 100 to the heating line 20.

[0105] This application also provides a vehicle, including: the above-described vehicle-mounted floor heating system.

[0106] This application also provides a vehicle, which includes a vehicle body. The first heating pipe 21 of the above-mentioned vehicle-mounted floor heating system is installed under the floor of the driver's cabin, and the second heating pipe 22 is installed under the floor of the passenger compartment, respectively heating the floor area of ​​the driver's cabin and the floor area of ​​the passenger compartment.

[0107] It should be noted that the above-mentioned connections, series connections, and parallel connections can be made through pipes, and the connection points of each pipe should be sealed to prevent leakage.

[0108] In some embodiments of this application, the vehicle-mounted floor heating system provided in this application also includes a control unit. The first temperature sensing element 50, the second temperature sensing element 60, and the third temperature sensing element 70 are all electrically connected to the control unit. The water throttling valve 33 and the hot water main throttling valve 100 are both electrically controlled valves and are electrically connected to the control unit. The first temperature sensing element 50, the second temperature sensing element 60, and the third temperature sensing element 70 respectively feed back the detected temperature signals to the control unit. The control unit controls the cold water throttling valve 33 and the hot water main throttling valve 100 to adjust their opening degrees to increase or decrease the flow rate of the coolant, thereby adjusting the flow rate delivered from the liquid cooling pipe 10 and the temperature regulating pipe 30 to the heating pipe 20. This adjusts the mixing ratio of cold water and hot water, precisely regulates the temperature of the heating pipe 20, and achieves precise temperature control, ensuring that the vehicle-mounted floor heating system achieves automatic temperature control.

[0109] In some embodiments of this application, the first three-way valve 80 is an electromagnetically controlled valve, electrically connected to the control unit. The control unit controls the path of the first three-way valve 80 to achieve simultaneous or zoned heating of the floor areas of the cockpit and passenger compartment. By controlling the opening of the cold water throttle valve 33 and the hot water main throttle valve 100, the mixing ratio of cold and hot water can be adjusted, thereby regulating the floor heating temperature and improving passenger comfort and driving safety.

[0110] This application provides a vehicle-mounted floor heating system. After passing through the liquid-cooled pipe 10, the antifreeze absorbs heat generated by the heating element 13, becoming high-temperature antifreeze. This high-temperature antifreeze then dissipates heat as it flows through the first heating element 211 of the first heating pipe 21, effectively heating the floor area of ​​the driver's cabin, thus ensuring warmth for the driver and front-seat passengers' feet. Furthermore, the high-temperature antifreeze dissipates heat as it flows through the second heating element 221 of the second heating pipe 22, effectively heating the floor area of ​​the passenger compartment, thus ensuring warmth for the rear-seat passengers' feet. This system achieves the rational reuse of waste heat generated during vehicle operation, improving comfort and driving safety.

[0111] In some embodiments of this application, an in-vehicle floor heating system is provided, which further includes an ambient temperature measuring element for detecting the ambient temperature outside the vehicle. The ambient temperature measuring element is electrically connected to the control unit.

[0112] This application provides a vehicle-mounted floor heating system and vehicle with an automatic mode. If the ambient temperature outside the vehicle is detected to be below 5°C, and the temperature of the first outlet 12 of the liquid cooling pipe 10 is detected by the first temperature sensing element 50 to be above 40°C, the control unit controls the heating pipe 20 to start automatically. The fourth valve outlet 93 of the second three-way valve 90 is opened, and the first valve outlet 82 and the second valve outlet 83 of the first three-way valve 80 are opened. After the coolant in the liquid cooling pipe 10 absorbs the heat generated by the heating element 13, it becomes a high-temperature coolant. The high-temperature coolant passes from the first outlet 12 through the fourth valve outlet 93 of the second three-way valve 90, the hot water main throttle valve 100, the second temperature sensing element 60, and the first three-way valve 80, and is then transported to the first heating pipe 21 and the second heating pipe 22 to heat the floor area of ​​the driver's cabin and the floor area of ​​the passenger cabin, respectively.

[0113] This application provides a vehicle-mounted floor heating system and vehicle with a manual mode. If the driver or passengers require floor heating, they can control the opening of the first three-way valve 80 and the second three-way valve 90 through a soft switch on the vehicle's central control screen, thereby heating the floor areas of the driver's cabin and the passenger cabin.

[0114] This application provides a vehicle-mounted floor heating system and vehicle that can perform zoned heating and temperature control on the floor areas of the driver's cabin and the passenger compartment. The first three-way valve 80 can open only the first valve outlet 82 or the second valve outlet 83 as needed, so that the coolant can only pass through one of the first heating pipe 21 and the second heating pipe 22, thereby achieving the requirement of zoned heating only for the driver's area or the passenger area. Alternatively, the first valve outlet 82 and the second valve outlet 83 can be opened as needed, so that the first heating pipe 21 and the second heating pipe 22 work simultaneously to effectively heat the floor areas of the driver's cabin and the passenger compartment.

[0115] This application provides a vehicle-mounted floor heating system and vehicle. A first hot water throttling valve 212 is connected in series in the first heating pipe 21, and a second hot water throttling valve 222 is connected in series in the second heating pipe 22. By controlling the opening of the first hot water throttling valve 212, the heating temperature of the first heating element 211 can be adjusted. By controlling the opening of the second hot water throttling valve 222, the heating temperature of the second heating element 221 can be adjusted, thereby achieving zoned heating and temperature control and improving passenger comfort.

[0116] This application provides a vehicle-mounted underfloor heating system and vehicle that can achieve automatic temperature control. It can reuse the waste heat of the antifreeze after it has cooled down through the underfloor heating system. According to the passengers' underfloor heating needs, based on the temperatures detected by the first temperature measuring element 50, the second temperature measuring element 60 and the third temperature measuring element 70, the opening of the cold water throttle valve 33 and the hot water main throttle valve 100 are adjusted in real time to control the flow rate of hot water and cold water to the heating pipe 20, thereby controlling the mixing ratio of cold water and hot water and ensuring that the heating temperature is within the required temperature range, thus achieving automatic temperature control.

[0117] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A vehicle-mounted floor heating system applied to a vehicle, characterized in that, The application relates to a vehicle liquid cooling system. The vehicle liquid cooling system comprises a liquid cooling pipeline (10), a heating pipeline (20) and a temperature adjusting pipeline (30). The liquid cooling pipeline (10) comprises a first liquid inlet (11) and a first liquid outlet (12). The heating pipeline (20) is arranged in the floor of the vehicle, and two ends of the heating pipeline (20) are respectively a heating liquid inlet (23) and a heating liquid outlet (24).

2. The vehicle-mounted floor heating system according to claim 1, wherein, The heating liquid inlet (23) is connected to the first liquid outlet (12), and the heating liquid outlet (24) is connected to the first liquid inlet (11).

3. The vehicle-mounted floor heating system of claim 2, wherein, The temperature adjusting pipeline (30) comprises a second liquid inlet (31) and a second liquid outlet (32).

4. The vehicle-mounted floor heating system of claim 1, wherein, The second liquid inlet (31) is connected to the heating liquid outlet (24), and the second liquid outlet (32) is connected to the heating liquid inlet (23). The temperature adjusting pipeline (30) is configured to supplement cooling medium into the heating pipeline (20) to adjust the heating temperature of the heating pipeline (20).

5. The vehicle-mounted floor heating system of claim 4, wherein, The vehicle liquid cooling system further comprises a first temperature measuring element (50), a second temperature measuring element (60) and a third temperature measuring element (70).

6. The vehicle-mounted floor heating system of claim 5, wherein, The first temperature measuring element (50) is arranged at the first liquid outlet (12) of the liquid cooling pipeline (10).

7. The vehicle-mounted floor heating system of claim 6, wherein, The second temperature measuring element (60) is arranged at the heating liquid inlet (23) of the heating pipeline (20). The third temperature measuring element (70) is arranged at the temperature adjusting pipeline (30). The temperature adjusting pipeline (30) comprises a cold water throttle valve (33). The cold water throttle valve (33) is arranged in series with the third temperature measuring element (70) on the temperature adjusting pipeline (30). The vehicle liquid cooling system further comprises a hot water total throttle valve (100). The hot water total throttle valve (100) is arranged on a pipeline between the first liquid outlet (12) and the heating liquid inlet (23). The heating pipeline (20) comprises a first heating pipeline (21) and a second heating pipeline (22). The first heating pipeline (21) and the second heating pipeline (22) are arranged in parallel. The first heating pipeline (21) comprises a first heating pipe (211). The first heating pipe (211) is arranged in the floor of the driver cabin of the vehicle. The first heating pipe (211) comprises at least two first heating pipe sections connected in sequence. The first heating pipe sections are arranged in an S shape. The second heating pipeline (22) comprises a second heating pipe (221). The second heating pipe (221) is arranged in the floor of the passenger cabin of the vehicle. The second heating pipe (221) comprises at least two second heating pipe sections connected in sequence. The second heating pipe sections are arranged in an S shape. The first heating pipeline (21) further comprises a first hot water throttle valve (212). The first hot water throttle valve (212) is arranged in series between the first heating pipe (211) and the heating liquid inlet (23). The second heating pipeline (22) further comprises a second hot water throttle valve (222). The second hot water throttle valve (222) is arranged in series between the second heating pipe (221) and the heating liquid inlet (23).

8. The vehicle-mounted floor heating system of claim 7, wherein, Further comprising a heat dissipation pipeline (40), the heat dissipation pipeline (40) comprising a third liquid inlet (41), a third liquid outlet (42) and a radiator (43), the third liquid inlet (41) being connected to the first liquid outlet (12), the third liquid outlet (42) being connected to the first liquid inlet (11), and the radiator (43) being communicated between the third liquid inlet (41) and the third liquid outlet (42).

9. The vehicle-mounted floor heating system of claim 8, wherein, Further comprising a first three-way valve (80), the first three-way valve (80) comprising a first valve inlet (81), a first valve outlet (82) and a second valve outlet (83), the first valve inlet (81) being connected to the heating liquid inlet (23), and the first valve outlet (82) and the second valve outlet (83) being connected to the inlet end of the first heating pipeline (21) and the inlet end of the second heating pipeline (22) respectively. Further comprising a second three-way valve (90), the second three-way valve (90) comprising a second valve inlet (91), a third valve outlet (92) and a fourth valve outlet (93), the second valve inlet (91) being connected to the first liquid outlet (12), and the third valve outlet (92) and the fourth valve outlet (93) being connected to the third liquid inlet (41) and the heating liquid inlet (23) respectively.

10. A vehicle characterized by comprising: Comprise: The vehicle-mounted floor heating system according to any one of claims 1 to 9.

Images