Multifunctional safety belt, seat with same and vehicle

Abstract

The utility model provides a multifunctional safety belt, a seat with the same and a vehicle, the multifunctional safety belt comprises a safety belt body, a heating assembly, a ventilation assembly and a controller, and the heating assembly and the ventilation assembly are arranged in the safety belt body; the heating assembly comprises a heating gasket and a first switch, the first switch is arranged between the heating gasket and the power supply, and the first switch is connected with the controller; the ventilation assembly comprises an air supply device and a second switch, the second switch is arranged between the air supply device and the power supply, and the second switch is connected with the controller; the controller is configured to output a first control signal to the first switch to control the first switch to switch on the heating gasket and the power supply when the temperature in the vehicle is lower than a first preset value; and when the in-vehicle temperature is higher than a second preset value, a second control signal is output to the second switch to control the second switch to switch on the air supply device and the power supply.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle component technical field especially relates to a multi -functional safety belt, a seat and a vehicle. BACKGROUND

[0002] With the popularity of pure electric vehicles, battery pack power becomes the focus of electric vehicle owners. In the case of battery capacity development encountering a bottleneck, reducing the whole vehicle power consumption becomes an urgent demand. Air conditioning heating and refrigeration as the main power consumption function of electric vehicles, its alternative scheme is particularly important. SUMMARY

[0003] The utility model aims at at least in a certain extent solves one of the technical problems in the prior art. For this purpose, the first purpose of the utility model is to propose a multi -functional safety belt and the seat and vehicle with it.

[0004] In order to achieve the above object, the utility model provides a multi -functional safety belt, the multi -functional safety belt includes safety belt body, heating assembly, ventilation assembly and controller, heating assembly and ventilation assembly are arranged in safety belt body;Heating assembly includes heating gasket and first switch, first switch is arranged between heating gasket and power supply, first switch is connected with controller;Ventilation assembly includes air supply device and second switch, second switch is arranged between air supply device and power supply, second switch is connected with controller;Controller is configured to output first control signal to first switch to control first switch to connect heating gasket and power supply when the temperature in the vehicle is lower than the first preset value;When the temperature in the vehicle is higher than the second preset value, the second control control signal is output to the second switch to control the second switch to connect the air supply device and the power supply.

[0005] In addition, the multi -functional safety belt according to the above embodiment of the utility model can also have the following additional technical features:

[0006] Optionally, the multi -functional safety belt further includes a thermistor, the thermistor is arranged in the safety belt body;The controller is further configured to obtain the real-time resistance value of the thermistor, and output a third control signal to the first switch to control the first switch to disconnect the heating gasket and the power supply when the real-time resistance value is higher than the third preset value.

[0007] Optionally, the safety belt body is a flexible and rollable safety belt body, which comprises an insulating layer and a woven belt layer from inside to outside, and the heating assembly and the ventilation assembly are arranged inside the insulating layer.

[0008] Optionally, the heating assembly includes a plurality of heating pads, each heating pad is connected by copper wire, one end of the copper wire is connected with the positive electrode of the first switch, and the other end of the copper wire is connected with the negative electrode of the first switch.

[0009] Optionally, the ventilation assembly comprises a plurality of air supply devices, each air supply device is connected and communicated by an air pipe, and the air pipe is connected with an air pump.

[0010] Optionally, the plurality of heating pads and the plurality of air supply devices are arranged in the insulation layer by inlaying, sewing, bonding, riveting and / or high-frequency welding.

[0011] Optionally, the controller is further configured to receive a temperature signal of the air conditioning system to determine the temperature in the vehicle according to the temperature signal.

[0012] Optionally, the multifunctional safety belt further comprises a key assembly, the key assembly comprises a first key and a second key; the first key is arranged between the heating pad and the power supply, and when the first key is pressed, the connection between the heating pad and the power supply is turned on or cut off; the second key is arranged between the air supply device and the power supply, and when the second key is pressed, the connection between the air supply device and the power supply is turned on or cut off.

[0013] As can be seen from the above, the heating assembly and the ventilation assembly containing the heating pad are arranged on the safety belt, the heating temperature and the ventilation function can be intelligently started and adjusted according to the temperature in the vehicle, the multifunctional safety belt can be used as an effective alternative to the air conditioning heating and cooling, the use frequency of the air conditioner is reduced, the energy consumption of the vehicle itself is reduced, and the driving experience of the driver and the passenger is improved.

[0014] The utility model discloses a second aspect provides a seat, including the multifunctional safety belt described above. The seat is through arranging the heating assembly and the ventilation assembly containing the heating pad on the safety belt, the heating temperature and the ventilation function can be intelligently started and adjusted according to the temperature in the vehicle, the multifunctional safety belt can be used as an effective alternative to the air conditioning heating and cooling, the use frequency of the air conditioner is reduced, the energy consumption of the vehicle itself is reduced, and the driving experience of the driver and the passenger is improved.

[0015] The utility model discloses a third aspect provides a vehicle, including the seat described above. The vehicle is through arranging the heating assembly and the ventilation assembly containing the heating pad on the safety belt, the heating temperature and the ventilation function can be intelligently started and adjusted according to the temperature in the vehicle, the multifunctional safety belt can be used as an effective alternative to the air conditioning heating and cooling, the use frequency of the air conditioner is reduced, the energy consumption of the vehicle itself is reduced, and the driving experience of the driver and the passenger is improved.

[0016] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to make the technical scheme of the present application or the prior art clearer, the drawings needed in the embodiment or the prior art description will be briefly introduced below, obviously, the drawings in the following description are only the present application, and other drawings can be obtained by those skilled in the art without creative labor on the premise of not paying creative labor.

[0018] Figure 1 The application provides a multifunctional safety belt application scene schematic diagram.

[0019] Figure 2 The application provides a multifunctional safety belt module schematic diagram.

[0020] Figure 3 The application provides a multifunctional safety belt cross section schematic diagram.

[0021] Figure 4 The application provides a heating gasket structure schematic diagram.

[0022] Figure 5 The application provides a heating assembly and a ventilation assembly schematic diagram.

[0023] Reference signs:

[0024] Multifunctional safety belt 100, safety belt body 101, heating assembly 102, ventilation assembly 103, controller 104, heating gasket 1021, first switch 1022, air supply device 1031, second switch 1032, upper insulating layer 1011-1, lower insulating layer 1011-2, upper layer woven belt 1012-1, lower layer woven belt 1012-2. Specific implementation

[0025] In order to make the technical scheme of the present application or the prior art clearer, the drawings needed in the embodiment or the prior art description will be briefly introduced below, obviously, the drawings in the following description are only the present application, and other drawings can be obtained by those skilled in the art without creative labor on the premise of not paying creative labor.

[0026] It should be noted that, unless otherwise defined, technical terms or scientific terms used in the present application should be understood as the common meaning understood by those skilled in the art to which the present application belongs. The "first", "second" and similar words used in the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connected" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] As described in the background section, with the popularity of pure electric vehicles, battery pack power has become the focus of electric vehicle owners. In the case of battery capacity development encountering a bottleneck, reducing the power consumption of the whole vehicle becomes an urgent need. Air conditioning heating and cooling, as the main power consumption function of electric vehicles, is particularly important.

[0028] The applicant found that, in the process of implementing the present application, the heating pad can be provided to the safety belt to heat and insulate the driver and passenger, and the air pump and air supply device are provided to realize ventilation and cooling of the driver and passenger, so as to reduce the use frequency of the air conditioner, help to reduce the energy consumption of the vehicle itself, and improve the driving experience of the driver and passenger.

[0029] The technical scheme of the present application will be further described in detail below through specific embodiments.

[0030] Reference Figure 1 The application scenario diagram of the multifunctional safety belt provided in the embodiment of the present application is shown.

[0031] In specific implementation, the multifunctional safety belt 100 can include a heating area start end and a heating area end end. The heating area start end can be understood as the input point of electric energy in the multifunctional safety belt 100, that is, the starting position of the heating assembly 102. This area is connected to the power supply system of the vehicle through a wire, and when the vehicle power supply system supplies power, the electric energy starts to flow into the heating element from here. The heating area end end can be understood as the output point of electric energy in the safety belt heating system, that is, the end position of the heating assembly 102. This area is the final position of the electric energy after flowing through the heating element, and the electric energy stops flowing here and can return to the power supply system of the vehicle through a wire (if the system adopts a closed loop design). In the embodiment of the present application, the controller 104 can be arranged at the heating area end end.

[0032] ReferenceFigure 2 A module diagram of the multifunctional safety belt is provided.

[0033] The multifunctional safety belt 100 comprises a safety belt body 101, a heating assembly 102, a ventilation assembly 103, and a controller 104. The heating assembly 102 and the ventilation assembly 103 are arranged in the safety belt body 101. The heating assembly 102 comprises a heating pad 1021 and a first switch 1022. The first switch 1022 is arranged between the heating pad 1021 and a power supply, and is connected to the controller 104. The ventilation assembly 103 comprises a ventilation device 1031 and a second switch 1032. The second switch 1032 is arranged between the ventilation device 1031 and the power supply, and is connected to the controller 104. The controller 104 is configured to output a first control signal to the first switch 1022 to turn on the heating pad 1021 and the power supply when the temperature in the vehicle is lower than a first preset value, and output a second control signal to the second switch 1032 to turn on the ventilation device 1031 and the power supply when the temperature in the vehicle is higher than a second preset value.

[0034] As an optional embodiment, the controller 104 is further configured to receive a temperature signal of an air conditioning system to determine the temperature in the vehicle according to the temperature signal.

[0035] In a specific implementation, the driver or passenger can touch and click the smart heating and ventilation virtual switch in the multimedia large screen with a finger. Further, the multimedia host detects the touch action by calculating the change in the capacitance value between the driver's finger and the large screen. When the capacitance value exceeds a preset touch threshold, it is confirmed that the driver has successfully clicked the smart virtual switch. The multimedia host converts the detected capacitance signal into a CAN signal for turning on the electric heating, and sends it to the CAN network. The controller 104 receives the function-on CAN signal sent by the multimedia host from the CAN network. At the same time, the controller 104 also identifies the temperature signal inside / outside the vehicle from the air conditioning system.

[0036] The Controller Area Network (CAN) is a serial communication protocol bus for real-time applications, which is a widely used vehicle communication protocol for connecting different electronic control units (ECUs) in a vehicle. The converted CAN signal is sent to the CAN network so that other ECUs (including the controller 104) can receive and respond.

[0037] It should be noted that once the smart virtual switch is turned on, the switch state remains on even after the vehicle is powered off and then powered on again, without the need for repeated clicking.

[0038] Specifically, the heating assembly 102 is specifically composed of a heating pad 1021 and a first switch 1022, the first switch 1022 is arranged between the heating pad 1021 and the power supply, and is connected with the controller 104. The controller 104 can control the on-off of the heating pad 1021 and the power supply through the first switch 1022 according to actual needs. The ventilation assembly 103 includes a ventilation device 1031 and a second switch 1032, the second switch 1032 is arranged between the ventilation device 1031 and the power supply, and is connected with the controller 104. The controller 104 can also control the on-off of the ventilation device 1031 and the power supply through the second switch 1032 according to actual needs.

[0039] The intelligence of the controller 104 is that it can make corresponding responses according to the change of the temperature in the vehicle. When the temperature in the vehicle is lower than the first preset value, the controller 104 sends a first control signal to the first switch 1022 to make the first switch 1022 closed, so that the heating pad 1021 is connected with the power supply to provide heat energy for the safety belt. On the contrary, if the temperature in the vehicle is higher than the second preset value, the controller 104 sends a second control signal to the second switch 1032 to make the second switch 1032 closed to start the ventilation device 1031 to bring cool ventilation effect to the safety belt.

[0040] It should be noted that the safety belt body 101 can be a polyester yarn woven belt. Polyester yarn, also known as polyester fiber, is often used to manufacture safety belts and other applications that need to bear high load and frequent stretching due to its high strength, wear resistance, tear resistance and good elastic recovery performance. The polyester yarn woven belt not only has sufficient strength and durability to meet the requirements of safety standards, but also can adjust its hand feeling, softness and comfort through different weaving techniques and fiber ratio. This is crucial to improve the comfort of the driver and passenger when wearing the safety belt. In addition, polyester yarn also has good weather resistance and chemical stability, which can maintain its performance stability under different environmental and climate conditions. This makes the polyester yarn woven safety belt body 101 adapt to various complex driving environments and provide reliable protection for the driver and passenger.

[0041] It should be noted that the material of the heating pad 1021 of the present application is preferably graphene. As a new type of nanomaterial, graphene has excellent thermal conductivity and electrical conductivity. This enables the graphene heating element to rapidly heat up in a short time, providing the required heat for the safety belt. For example, it only takes 1 minute for the graphene heating safety belt to rise from -20℃ to 40℃. Although metal wire heating is also an effective heating method, its heating speed is relatively slow. In contrast, the graphene heating safety belt achieves a faster heating speed at a lower initial temperature, which fully demonstrates the advantages of graphene in heating efficiency. In addition, since the graphene heating element heats up quickly and can reach the required temperature in a short time, it consumes relatively less electric energy. This not only helps to reduce the energy consumption of the vehicle, but also meets the current pursuit of energy saving and environmental protection in the automotive industry. The efficient heating speed means that the driver and passengers can feel the heating effect of the safety belt faster, thereby reducing the waiting time for the safety belt to heat up in cold weather. This not only improves the comfort of the driver and passengers, but also enhances their satisfaction with the interior and configuration of the vehicle.

[0042] As an optional embodiment, the multifunctional safety belt 100 further comprises a thermistor arranged in the safety belt body 101; the controller 104 is further configured to acquire a real-time resistance value of the thermistor, and in response to the real-time resistance value being higher than a third preset value, output a third control signal to the first switch 1022 to control the first switch 1022 to disconnect the communication between the heating pad 1021 and the power supply.

[0043] On the basis of the multifunctional safety belt 100 described above, the utility model embodiment still adds a thermistor, which is also arranged in the safety belt body 101. The controller 104 can read the resistance value of the thermistor in real time. If the real-time resistance value of the thermistor exceeds the set third preset value, it means that the temperature of the safety belt or its surroundings is too high. At this time, the controller 104 will send a third control signal to the first switch 1022, so that the first switch 1022 is disconnected, thereby cutting off the connection between the heating pad 1021 and the power supply, preventing overheating from causing safety hazards.

[0044] In the embodiment of the utility model, when the temperature sensor detects that the temperature in the vehicle is lower than 0 DEG C, the multifunctional safety belt 100 enters heating mode. The heating pad 1021 receives 12V voltage power supply and starts heating. The heating state signal is sent to the host computer, and the indicator light or display screen on the host computer will display the heating state, so that the passenger knows the current working mode. In cold environment, the temperature in the safety belt area is rapidly raised through the heating function, and warm and comfortable is provided for the passenger. When the temperature sensor detects that the temperature in the vehicle is higher than 30 DEG C, the multifunctional safety belt 100 enters ventilation mode. The controller 104 provides 12V voltage power supply to the air pump and starts the air supply device 1031. The ventilation state signal is sent to the host computer, and the indicator light or display screen on the host computer will display the ventilation state, so that the passenger knows the current working mode. In hot environment, the temperature in the safety belt area is reduced through the ventilation function, and the discomfort of the passenger is reduced. When the temperature sensor detects that the temperature in the vehicle is between 0 DEG C and 30 DEG C, the relative temperature in the vehicle compartment is in a moderate temperature environment, and the multifunctional safety belt can select neither heating mode nor ventilation mode. The heating pad 1021 and the air supply device 1031 do not receive voltage power supply and are in the closed state. In the moderate temperature environment, unnecessary energy consumption is avoided, and at the same time, the comfort of the passenger is not affected. The indicator light or display screen on the host computer will display that there is no heating or ventilation function at present.

[0045] Reference Figure 3 The utility model provides a cross section schematic diagram of multifunctional safety belt.

[0046] As an optional embodiment, the safety belt body 101 is a flexible and rollable safety belt body, which comprises an insulation layer 1011 and a braid layer 1012 from inside to outside, a heating assembly 102 and a ventilation assembly 103 are arranged inside the insulation layer 1011.

[0047] Specifically, the insulation layer 1011 is located at the innermost layer of the safety belt body 101, and its main function is to provide electrical isolation and ensure that the heating assembly 102 and the ventilation assembly 103 do not directly contact with the external environment (such as the skin or clothes of the driver or passenger) when working, so as to avoid electrical safety problems. The material of the insulation layer 1011 is usually selected from materials with high insulation performance and heat resistance, such as polyimide, polytetrafluoroethylene, etc., so as to ensure stable insulation effect during heating and ventilation. The braid layer 1012 is located outside the insulation layer 1011 and is the main load-bearing part of the safety belt body 101. It is usually woven from high-strength fibers (such as polyester, nylon, etc. as described above) to ensure that the safety belt has sufficient tensile strength and wear resistance.

[0048] The heating component 102 is arranged inside the insulation layer 1011 and keeps a certain distance from the woven tape layer 1012. This is mainly to avoid direct overheating damage to the woven tape layer 1012 during heating, while ensuring that the heat can be evenly transmitted to the woven tape layer 1012 to provide comfortable heating effect for the driver and passenger. The ventilation component 103 is also arranged inside the insulation layer 1011 and is independent of the heating component 102. It usually includes air supply devices 1031 (such as micro fans) and air pipes and other components, which are used to provide cool air flow to the outside environment through the safety belt when needed.

[0049] In a specific implementation, the safety belt is composed of the following layers. The upper woven tape 1012-1 is responsible for the overall tensile strength of the safety belt, ensuring that the driver and passenger can be firmly fixed in an emergency. The upper insulation layer 1011-1 serves as a carrier for the ventilation component 103 and the heating component 102, and is also responsible for accumulating heat generated during heating to improve heating efficiency. The lower insulation layer 1011-2 further accumulates heat generated during heating to improve heating effect and protect the lower woven tape 1012-2 from high temperature. The lower woven tape 1012-2 and the upper woven tape 1012-1 jointly bear the overall tensile strength of the multifunctional safety belt 100. The heating pad 1021 is responsible for heating and provides heat for the safety belt. The air supply device 1031 is responsible for the ventilation function of the safety belt, which is realized through the air flow provided by the air pump. The heating pad 1021 and the air supply device 1031 can be sewn onto the upper insulation layer 1011-1 by a single needle baseball sewing method, which is respectively used for current transmission of the heating pad 1021 and air flow transmission of the air supply device 1031.

[0050] Reference Figure 4 The structure diagram of the heating pad provided by the embodiment of the utility model.

[0051] The heating pad 1021 includes a positive electrode, a substrate, a conductive copper sheet, a graphene heating film, an outer protective film, and a negative electrode. Among them, the positive electrode is one electrode of the heating pad 1021, and is usually connected to the positive electrode of the power supply. It is responsible for introducing electric current into the heating pad, thereby starting the heating process. The positive electrode material is usually selected from metals or alloys with high electrical conductivity and stability to ensure that the electric current can flow smoothly and be evenly distributed on the heating film. The substrate is the supporting structure of the heating pad 1021, which carries other components and provides the necessary mechanical strength. The substrate material is usually selected from materials with good thermal conductivity, electrical insulation and mechanical strength, such as polyimide, polyester, etc. The conductive copper sheet is an important component connecting the positive electrode and the graphene heating film. It is responsible for transmitting electric current from the positive electrode to the heating film, ensuring that the heating film can be uniformly heated. The conductive copper sheet usually has a low resistivity and good thermal conductivity to ensure efficient transmission of electric current and heat. The graphene heating film is the core component of the heating pad 1021, which is responsible for converting electrical energy into heat energy. The graphene heating film is composed of one or more layers of graphene material, which forms a continuous conductive network through special processing. When the electric current passes through, the electrons in the graphene material collide and scatter under the action of the electric field, thereby generating heat. The outer protective film is the protective layer of the heating pad 1021, which is responsible for preventing moisture, dust and pollutants in the external environment from entering the interior of the heating pad. The outer protective film material is usually selected from materials with good waterproof, dustproof and chemical corrosion resistance, such as polytetrafluoroethylene, polyvinyl chloride, etc. The negative electrode is the other electrode of the heating pad 1021, which is usually connected to the negative electrode of the power supply. It is responsible for leading out the electric current from the heating film, thereby completing the heating process. The negative electrode material is similar to the positive electrode material, and is also selected from metals or alloys with high electrical conductivity and stability.

[0052] When the heating pad 1021 is connected to the power supply, the electric current is transmitted from the positive electrode to the graphene heating film through the conductive copper sheet. Under the action of the electric field, the electrons in the graphene material collide and scatter, generating heat. These heat is evenly transmitted to the external environment through the substrate and the outer protective film, thereby providing heat for the safety belt or other parts that need to be heated.

[0053] In the embodiment of the utility model, the basic parameters of the heating pad 1021 can include:

[0054] Voltage: 12V. This is the working voltage of the heating pad 1021, which is usually matched with the voltage of the vehicle battery for direct power supply.

[0055] Current: 1A (PWM duty cycle regulation). The size of the current can be adjusted by PWM (pulse width modulation) technology to achieve precise control of the heating power. The PWM duty cycle refers to the proportion of high level in a cycle, and by adjusting the duty cycle, the average current can be changed, thereby adjusting the heating power.

[0056] Maximum power: 12W. This is the power of the heating pad 1021 when working at full power, calculated by voltage and current (P=UI). In practical applications, the actual working power of the heating pad can be controlled by adjusting the PWM duty cycle.

[0057] Ramp-up rate: from -20℃ to 40℃ in 1min. This indicates that under standard conditions, the heating pad 1021 can raise the temperature from -20℃ to 40℃ in 1 minute. The ramp-up rate is one of the important indicators of heating pad performance, which directly affects the comfort and heating efficiency of the driver and passengers.

[0058] Adjustable ramp-up rate: The ramp-up rate can be adjusted by adjusting the arrangement density of the heating pad 1021. Increasing the number or density of heating pad 1021 can improve the ramp-up rate.

[0059] Maximum temperature: 40℃. This is the maximum temperature limit that the heating pad 1021 can reach, ensuring the safety and comfort of the driver and passengers during long-term use.

[0060] Heating area length: 1.43m. This is the arrangement length of the heating pad 1021, usually matched with the length of the safety belt to ensure uniform heating throughout the safety belt area.

[0061] Heating area width: 47mm. This is the arrangement width of the heating pad 1021, which determines the coverage of the heating area on the safety belt. A wider heating area can provide better heating effect and comfort.

[0062] Reference Figure 5 , the heating assembly and the ventilation assembly provided by the embodiment of the present utility model are shown in the schematic diagram.

[0063] As an optional embodiment, the heating assembly 102 includes a plurality of heating pads 1021, each heating pad 1021 is connected in series by copper wire, one end of the copper wire is connected to the positive electrode of the first switch 1022, and the other end of the copper wire is connected to the negative electrode of the first switch 1022.

[0064] As an optional embodiment, the ventilation assembly 103 includes a plurality of air supply devices 1031, each air supply device 1031 is connected and communicated by an air pipe, the air pipe is connected with an air pump, and the air pump is used for supplying air to the air pipe.

[0065] In a specific implementation, the heating assembly 102 is composed of multiple heating pads 1021 connected in series by copper wires. The multiple heating pads 1021 can cover different areas of the seat belt and have a wide coverage, allowing for uniform heating of the entire seat belt. In addition, the different heating pads 1021 can also be connected in parallel, i.e., the multiple heating pads 1021 can also achieve zoned heating. This means that specific areas can be selectively heated according to the needs of the driver or passenger or the actual use of the seat belt. By precisely controlling the power of the heating pads 1021 and the series connection, uniform heating of the seat belt surface can be achieved, avoiding the situation of local overheating or insufficient heating. The series-connected heating pads 1021 can be controlled by the first switch 1022. When the switch is closed, the current flows through each heating pad in turn, starting the heating process. This design simplifies the control system and reduces costs.

[0066] As an optional embodiment, when the temperature inside the vehicle is lower than a preset value or according to the needs of the driver or passenger, the seat belt controller 104 decides to start the heating function. The controller 104 controls the first switch 1022 to be closed, allowing the heating pads 1021 to be connected to the power supply, which powers the heating pads 1021. Under the action of the current, the heating pads 1021 begin to heat up and heat the seat belt. The thermistor of the embodiment of the present application can be an NTC sensor (negative temperature coefficient thermistor). The thermistor, as a temperature probe, is arranged on the heating pad to monitor the temperature change of the heating pad in real time. As the temperature rises, the resistance of the NTC sensor changes. The seat belt controller 104 confirms the current temperature of the heating pad according to the resistance change of the NTC sensor and adjusts the duty cycle of the current through PWM (pulse width modulation) technology to maintain the heating pad within the set temperature range.

[0067] In a specific implementation, multiple air supply devices 1031 can be distributed at different positions of the seat belt to achieve uniform ventilation. This helps to quickly reduce the temperature of the seat belt surface and improve the comfort of the driver or passenger. By adjusting the power of the air pump or controlling the switch of the air supply device 1031, the ventilation intensity can be flexibly controlled. This can be adjusted according to the temperature inside the vehicle, the needs of the driver or passenger, or the actual use of the seat belt. The design of the air pipe connection makes it easy to disassemble and replace the air supply device 1031. This helps to reduce maintenance costs and prolong the service life of the ventilation assembly 103.

[0068] It should be noted that the design of the air pipe and air pump can be optimized to further reduce the noise level during ventilation and improve the riding experience of the driver or passenger.

[0069] As an optional embodiment, the safety belt controller 104 decides to start the ventilation function when the temperature inside the vehicle is higher than a preset value or according to the needs of the driver or passenger. The controller 104 controls the closing of the second switch 1032, so that the air supply device 1031 is connected to the power supply, which supplies power to the heating pad 1021. The air pump starts to work and fills the air supply device 1031 with air through the air pipe. The safety belt controller 104 adjusts the duty cycle of the power supply current according to the temperature inside the vehicle and the preset ventilation gear, so as to control the output air flow intensity of the air pump and achieve the ventilation effect of different gears through the PWM technology.

[0070] It should be noted that in the embodiments of the present application, the air pump model can be a micro electric air pump (model VUY6002), the air pump voltage is 12V, the air pump current is 0.19A (PWM duty cycle adjustment), the air pump flow is 2L / Min, the air pump maximum power is 2.28W, the air pump weight is 60g, the ventilation area length is 1.43m, and the ventilation area width is 47mm.

[0071] As an optional embodiment, the multifunctional safety belt 100 further comprises a key assembly, which includes a first key and a second key (not shown in the figure); the first key is arranged between the heating pad 1021 and the power supply, and when the first key is pressed, it connects or disconnects the connection between the heating pad 1021 and the power supply; the second key is arranged between the air supply device 1031 and the power supply, and when the second key is pressed, it connects or disconnects the connection between the air supply device 1031 and the power supply.

[0072] Specifically, the key assembly is an important part of the multifunctional safety belt 100, which allows the driver or passenger to control the heating and ventilation functions through simple operation. The key assembly includes a first key and a second key, which are used to control the heating pad 1021 and the air supply device 1031, respectively.

[0073] The first key is arranged between the heating pad 1021 and the power supply. This means that when the first key is pressed, it will directly affect the connection state between the heating pad 1021 and the power supply. When the first key is pressed, it will connect or disconnect the connection between the heating pad 1021 and the power supply. If the heating pad is originally in the off state (i.e. not connected to the power supply), pressing the first key will connect it to the power supply and start heating. Conversely, if the heating pad is already in the heating state, pressing the first key again will disconnect it from the power supply, thereby stopping heating.

[0074] The second button is arranged between the air supply device 1031 and the power supply. Similar to the first button, the state of the second button will directly affect the connection between the air supply device 1031 and the power supply. When the second button is pressed, it will turn on or turn off the connection between the air supply device 1031 and the power supply. If the air supply device 1031 is originally in an off state, pressing the second button will start the air supply device 1031 to provide ventilation function for the driver and passenger. On the contrary, if the air supply device 1031 is already in a working state, pressing the second button again will turn off the air supply device 1031.

[0075] The button assembly has significant advantages in various application scenarios of the multifunctional safety belt 100. For example, in cold weather, the driver and passenger can start the heating function by pressing the first button to quickly raise the temperature of the safety belt area and increase the comfort. In hot weather, the driver and passenger can start the air supply device 1031 by pressing the second button to provide ventilation function for the safety belt area, reduce the temperature and reduce the discomfort. In addition, the introduction of the button assembly also improves the ease of use and user-friendliness of the multifunctional safety belt 100. The driver and passenger can control the heating and air supply functions by simple pressing operation without complex setting or adjusting process.

[0076] As can be seen from the above, the multifunctional safety belt provided by the utility model can intelligently start and adjust the heating temperature and ventilation function according to the temperature in the vehicle by arranging the heating assembly containing the heating pad and the ventilation assembly on the safety belt, can be used as an effective alternative to air conditioning heating and cooling, reduces the use frequency of air conditioning, helps to reduce the energy consumption of the vehicle itself, and improves the driving experience of the driver and passenger.

[0077] Based on the same inventive concept, corresponding to the multifunctional safety belt provided by any of the above embodiments, the utility model also provides a seat comprising the multifunctional safety belt described above. The seat can intelligently start and adjust the heating temperature and ventilation function according to the temperature in the vehicle by arranging the heating assembly containing the heating pad and the ventilation assembly on the safety belt, can be used as an effective alternative to air conditioning heating and cooling, reduces the use frequency of air conditioning, helps to reduce the energy consumption of the vehicle itself, and improves the driving experience of the driver and passenger.

[0078] Based on the same inventive concept, corresponding to the multifunctional safety belt provided by any of the above embodiments, the utility model also provides a vehicle comprising the seat described above. The seat can intelligently start and adjust the heating temperature and ventilation function according to the temperature in the vehicle by arranging the heating assembly containing the heating pad and the ventilation assembly on the safety belt, can be used as an effective alternative to air conditioning heating and cooling, reduces the use frequency of air conditioning, helps to reduce the energy consumption of the vehicle itself, and improves the driving experience of the driver and passenger.

[0079] It should be noted that, unless otherwise defined, technical terms or scientific terms used in the embodiments of the present application shall have the common meanings understood by those skilled in the art to which the embodiments of the present application belong. The terms "first", "second" and similar terms used in the embodiments of the present application do not represent any order, number or importance, but are only used to distinguish different components. The terms "comprise", "include" and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.

[0080] Although the spirit and principles of the present application have been described with reference to several specific embodiments, it should be understood that the present application is not limited to the disclosed specific embodiments, and the division of aspects does not mean that the features in these aspects cannot be combined to benefit. This division is only for the convenience of expression. The present application is intended to cover various modifications and equivalent arrangements included in the spirit and scope of the appended claims. The scope of the appended claims is the broadest interpretation, so as to include all such modifications and equivalent structures and functions.

Claims

1. A multi-functional safety belt characterized by, The safety belt body (101), a heating assembly (102), a ventilation assembly (103), and a controller (104), the heating assembly (102) and the ventilation assembly (103) are arranged in the safety belt body (101); The heating assembly (102) comprises a heating pad (1021) and a first switch (1022), the first switch (1022) is arranged between the heating pad (1021) and the power supply, and the first switch (1022) is connected with the controller (104); The ventilation assembly (103) comprises a blowing device (1031) and a second switch (1032), the second switch (1032) is arranged between the blowing device (1031) and the power supply, and the second switch (1032) is connected with the controller (104); The controller (104) is configured to output a first control signal to the first switch (1022) to control the first switch (1022) to turn on the heating pad (1021) and the power supply when the temperature in the vehicle is lower than a first preset value, and output a second control signal to the second switch (1032) to control the second switch (1032) to turn on the blowing device (1031) and the power supply when the temperature in the vehicle is higher than a second preset value.

2. The multi-functional seat belt according to claim 1, wherein Further comprising a thermistor arranged in the safety belt body (101), and the controller (104) is further configured to acquire a real-time resistance value of the thermistor, and output a third control signal to the first switch (1022) to control the first switch (1022) to disconnect the heating pad (1021) and the power supply when the real-time resistance value is higher than a third preset value.

3. The multi-functional seat belt according to claim 2, wherein The safety belt body (101) is a flexible and rollable safety belt body (101), comprising an insulation layer (1011) and a woven belt layer (1012) from inside to outside, and the heating assembly (102) and the ventilation assembly (103) are arranged inside the insulation layer (1011).

4. The multi-functional seat belt according to claim 3, wherein Further comprising a key assembly, the key assembly comprises a first key and a second key, the first key is arranged between the heating pad (1021) and the power supply, and the first key is pressed to turn on or cut off the connection between the heating pad (1021) and the power supply, and the second key is arranged between the blowing device (1031) and the power supply, and the second key is pressed to turn on or cut off the connection between the blowing device (1031) and the power supply.

5. The multi-functional seat belt of claim 3, wherein The heating assembly (102) comprises a plurality of heating pads (1021), each of the heating pads (1021) is connected in series by a copper wire, one end of the copper wire is connected with the positive electrode of the first switch (1022), and the other end of the copper wire is connected with the negative electrode of the first switch (1022).

6. The multi-functional seat belt of claim 3, wherein The ventilation assembly (103) comprises a plurality of blowing devices (1031), each of the blowing devices (1031) is connected and communicated by an air pipe, and the air pipe is connected with an air pump, and the air pump is used for supplying air to the air pipe.

7. The multi-functional seat belt according to any one of claims 5 or 6, characterized by, The plurality of heating pads (1021) and the plurality of air supply devices (1031) are arranged inside the insulation layer (1011) by inlaying, sewing, bonding, riveting and / or high-frequency welding.

8. The multi-functional seat belt of claim 1, wherein The controller (104) is further configured to receive a temperature signal of an air conditioning system to determine the temperature inside the vehicle according to the temperature signal.

9. A seat, characterized by A multi-functional seat belt comprising the multi-functional seat belt of any one of claims 1-8.

10. A vehicle characterized by comprising: A seat comprising the seat of claim 9.

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