A car seat with graphene heating device

Abstract

The application relates to the technical field of automobile seats and discloses an automobile seat with a graphene heating device, which comprises a seat body and a massage heating module arranged on the seat body, the massage heating module comprises a lower base plate, an upper base plate and an air pump, a plurality of actuators and electromagnetic valves for controlling the on-off of air paths are arranged on the lower base plate and the upper base plate respectively, the air pump is connected with the lower base plate and the upper base plate through air guide pipes, and the air flow direction is controlled through the electromagnetic valves; the double-chamber integrated structure and the double-air-path independent control system are adopted in the actuators, the mechanical percussion massage mechanism with adjustable force and the medium circulation heating mechanism with dynamic following are highly integrated in a single compact unit, the module volume and the structural complexity are significantly reduced, real-time and accurate cooperation of massage actions and heat transfer is realized, and the comfortable experience of synchronous heating at the massage position is realized.

Description

Technical Field

[0001] This invention relates to the technical field of automobile seats, and in particular to an automobile seat with a graphene heating device. Background Technology

[0002] With the development of the automotive industry and people's increasing demands for driving and riding comfort, car seats with massage and heating functions have become an important feature in mid-to-high-end models. Existing car seat massage and heating systems typically combine mechanical massage devices with independent heating wires or carbon fiber heating pads. However, existing car seat massage and heating modules are usually structurally separate and simply stacked, resulting in heavy seats that are prone to abnormal noise and damage; the two functions are controlled separately, making it impossible to achieve dynamic coordination between tapping and heating, resulting in a stiff experience; the massage intensity adjustment mostly relies on changing the frequency, making it difficult to independently and linearly control the intensity of a single massage; in addition, traditional mechanical parts have noise and wear problems, and complex pipelines pose a risk of leakage. Therefore, the industry urgently needs an integrated solution that can deeply integrate massage and heating functions, achieve dynamic collaborative work, and support fine intensity adjustment to meet higher requirements for space utilization, riding comfort, quiet performance, and long-term reliability. Summary of the Invention

[0003] The purpose of this invention is to provide a car seat with a graphene heating device, which aims to solve the problems in the prior art.

[0004] The present invention is implemented as follows: a car seat with a graphene heating device includes a seat body and a massage heating module disposed thereon. The massage heating module includes a lower base plate, an upper base plate and an air pump. The lower base plate and the upper base plate are respectively provided with a plurality of actuators and a solenoid valve for controlling the opening and closing of the air passage. The air pump is connected to the lower substrate and the upper substrate respectively through air pipes, and the airflow direction is controlled by a solenoid valve. The actuator includes an actuator housing and a retractable massage heating section. The massage heating section has a medium cavity inside. The actuator housing is divided into an expansion and contraction cavity and a heating cavity by a partition. The expansion and contraction chamber is equipped with an air bladder and a force-applying spring. The air bladder and the air path of the expansion and contraction chamber are independent of each other, and are respectively connected to and controlled by the air pump through the solenoid valve. The expansion and contraction chamber is controlled to inflate and deflate, thereby driving the massage heating unit to perform extension, contraction, and tapping actions. By controlling the inflation degree of the airbag, the initial preload force of the force-applying spring acting on the massage heating part is adjusted; Furthermore, during the inflation and deflation process, the airbag can drive the thermal medium to circulate between the heating chamber and the medium chamber.

[0005] Preferably, an elastic sheet is installed at the bottom of the partition via a connecting ring, and the elastic sheet is positioned above the heating chamber; The bottom of the airbag is connected to a top rod, which passes through the partition and is connected to a pressure plate that acts on the elastic sheet.

[0006] Preferably, a one-way liquid delivery pipe and a one-way liquid return pipe are provided through the inner wall of the connecting ring; The heating chamber is connected to the medium chamber through the one-way liquid delivery pipe and the one-way liquid return pipe, forming a one-way circulation loop of the heat medium; During expansion or contraction, the airbag compresses the elastic sheet through the pressure plate, causing the heat medium to circulate unidirectionally between the heating chamber and the medium chamber.

[0007] Preferably, the elastic sheet is made of either an elastic metal sheet or a high-temperature resistant polymer elastic element.

[0008] Preferably, the actuator further includes an assembly plate and a lead plate, and a plurality of actuator housings are fixed to the assembly plate.

[0009] Preferably, the massage heating part has folds around its perimeter, and the folds are made of an elastic material; The elastic material is one of silicone, thermoplastic polyurethane elastomer rubber or natural rubber, and its surface has a preset elastic modulus and wrinkle structure to allow the massage heating part to smoothly expand and contract under the drive of the expansion and contraction cavity.

[0010] Preferably, a graphene heating element is disposed inside the heating cavity, and the wiring portion of the graphene heating element penetrates the actuator housing and extends into the lead plate.

[0011] Preferably, the bottom of the partition is connected to a guide tube that penetrates the bottom of the actuator housing, and a first air supply pipe and a second air supply pipe are respectively sealed inside the guide tube; The first air delivery pipe is connected to the inside of the airbag, and the second air delivery pipe is connected to the inside of the expansion and contraction chamber.

[0012] Preferably, the surface of the seat body is covered with a surface coating, which covers the surface of the massage heating part of the actuator.

[0013] The beneficial effects of the car seat with a graphene heating device disclosed in this invention are: 1. This invention integrates an adjustable mechanical percussion massage mechanism and a dynamically following medium circulation heating mechanism into a single compact unit by adopting a dual-chamber integrated structure and a dual-air-path independent control system inside the actuator. This not only significantly reduces the module size and structural complexity, but also achieves real-time and precise coordination between massage action and heat transfer, realizing a comfortable experience of synchronous heating of the massage position. 2. This invention enables stepless adjustment of the single tapping force without changing the massage frequency through independently controlled airbag air path, thus meeting the personalized needs of users. 3. This solution also utilizes the pressure generated by the human body's own weight on the actuator to passively improve the pumping efficiency of the medium in the contact area, achieving a rapid response of instant heating and intelligent energy-saving effect of distributing heat on demand, thereby significantly improving the overall comfort, functionality, reliability and energy efficiency of the car seat. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a car seat with a graphene heating device provided in an embodiment of the present invention; Figure 2 This is a partial interior view schematic diagram of a car seat with a graphene heating device provided in an embodiment of the present invention; Figure 3 This is a bottom view schematic diagram of a car seat with a graphene heating device provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of a massage heating module for a car seat with a graphene heating device provided in an embodiment of the present invention; Figure 5 This is a bottom view schematic diagram of an assembly plate and lead plate of a car seat with a graphene heating device provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of an actuator for a car seat with a graphene heating device provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the internal structure of an actuator for a car seat with a graphene heating device, provided in an embodiment of the present invention. Figure 8 This is an exploded view of the actuator structure of a car seat with a graphene heating device provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the actuator cross-section structure of a car seat with a graphene heating device provided in an embodiment of the present invention.

[0015] Marker explanation: 1. Seat body; 2. Massage and heating module; 21. Lower substrate; 22. Upper substrate; 23. Air pump; 24. Air guide pipe; 25. Actuator; 251. Assembly plate; 252. Lead wire plate; 253. Actuator housing; 254. Massage heating unit; 255. Partition plate; 256. Airbag; 257. Force spring; 258. Graphene heating element; 259. Guide tube; 2531. Expansion / contraction chamber; 2532. Heating chamber; 2541. Folding section; 2542. Medium cavity; 2551, Elastic sheet; 2552, Connecting ring; 2553, One-way liquid delivery pipe; 2554, One-way liquid return pipe; 2561. Push rod; 2562. Tablet press; 2591, First air supply pipe; 2592, Second air supply pipe; 11. Surface coating. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0017] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0018] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0019] In this embodiment: Reference Figures 1-5 The diagram shows a preferred embodiment of the present invention.

[0020] This embodiment of a car seat with a graphene heating device includes a seat body 1 and a massage heating module 2 disposed thereon. The massage heating module 2 includes a lower substrate 21, an upper substrate 22, and an air pump 23. The lower substrate 21 is embedded in the seat cushion of the seat body 1, and the upper substrate 22 is embedded in the backrest of the seat body 1. The air pump 23 is disposed below the seat body 1 and can integrate a pressure sensor for detecting whether the seat is in use. The lower substrate 21 and the upper substrate 22 are respectively provided with multiple actuators 25 and solenoid valves for controlling the opening and closing of the air passages. The system realizes real-time control of the solenoid valves through PLC controller programming, precisely manipulating the opening and closing of each air passage and the gas filling and releasing, so that the massage heating module 2 can execute a variety of predetermined modes.

[0021] The air pump 23 is connected to the lower substrate 21 and the upper substrate 22 respectively through the air guide pipe 24, and controls the airflow direction through the solenoid valve to drive the actuator 25 to perform pressing and tapping massage actions. At the same time, it can achieve heating operation through the graphene heating plate 258. The actuator 25 is the core component for realizing the composite function. It includes an actuator housing 253, a retractable massage heating part 254, and a dual-cavity structure inside the actuator housing 253. Specifically, the actuator housing 253 is divided into an upper expansion and contraction cavity 2531 and a lower heating cavity 2532 by a partition 255. The massage heating part 254 has a medium cavity 2542 inside and a folding part 2541 made of elastic material on its outer periphery to ensure smooth extension and retraction.

[0022] It is worth noting that, in Figures 6-9 In this design, the expansion / contraction chamber 2531 contains an airbag 256 and a force-applying spring 257. The air passages of the airbag 256 and the expansion / contraction chamber 2531 are independent and sealed, and are connected to and controlled by the air pump 23 via the solenoid valve. By controlling the inflation and deflation of the expansion / contraction chamber 2531, the massage heating unit 254 is driven to perform extension, retraction, and tapping actions. By controlling the inflation degree of the airbag 256, the initial preload force of the force-applying spring 257 on the massage heating unit 254 is adjusted. Furthermore, during the inflation and deflation process, the airbag 256 can drive the heat medium to circulate between the heating chamber 2532 and the medium chamber 2542. The airbag 256 and the expansion / contraction chamber 2531 are respectively connected to the external air circuit control system through the first air supply pipe 2591 and the second air supply pipe 2592, which are sealed in the guide tube 259. This realizes independent and precise control of the dual air circuits: that is, by inflating and deflating the expansion / contraction chamber 2531, the entire massage heating part 254 can be driven to move in a telescopic motion, realizing a slow pressing action or a tapping action by compressing the force spring 257 and then quickly releasing it; and by independently inflating and deflating the airbag 256, its volume can be changed, thereby adjusting the compression preload of the force spring 257, so as to independently and precisely adjust the force of a single tap without changing the tapping frequency.

[0023] Furthermore, to achieve dynamic synergy between massage and heating, a graphene heating element 258 is installed inside the heating chamber 2532 to heat the heat medium therein. An elastic sheet 2551 is mounted at the bottom of the partition 255 via a connecting ring 2552. This sheet can be made of an elastic metal sheet or a high-temperature resistant polymer elastic component to balance elasticity, durability, and quiet operation. A push rod 2561 is connected to the bottom of the airbag 256, which passes through the partition 255 and is connected to a pressure plate 2562 that acts on the elastic sheet 2551. The connecting ring 2552 has a ring structure, with a one-way liquid delivery pipe 2553 and a one-way liquid return pipe 2554 running through it, connecting the heating chamber 2532 and the medium chamber 2542 within the massage heating section 254 to form a closed loop. The elastic sheet 2551 is snapped into the inner wall of the lower end of the connecting ring 2552. Furthermore, when the airbag 256 expands or contracts under the control of the independent air path, it will squeeze or release the elastic sheet 2551 below through the pressure plate 2562; the deformation of the elastic sheet 2551 directly changes the volume of the heating chamber 2532, thereby driving the medium heated by the graphene heating plate 258 to flow to the medium chamber 2542 through the one-way liquid delivery pipe 2553, and forcing the hot medium in the medium chamber 2542 to flow back to the heating chamber 2532 through the one-way liquid return pipe 2554, forming a one-way circulation. This means that heat can be actively and dynamically delivered to the top of the massage heating part 254 that is performing the tapping action, realizing the synchronous synergy of massage and heat.

[0024] Furthermore, the actuator 25 also includes a mounting plate 251 and a lead plate 252, with multiple actuator housings 253 fixed to the mounting plate 251. In a static state without passengers, the deformation of the elastic sheet 2551 is limited, and the circulation speed of the heat medium between the heating chamber 2532 and the medium chamber 2542 is relatively slow, resulting in a gentle initial heating rate of the seat surface. When a passenger sits on the seat body 1, their back or buttocks exert pressure on the actuator 25 in the contact area. This pressure is transmitted through the massage heating part 254 and the airbag 256, and is ultimately converted into an additional force on the elastic sheet 2551 via the push rod 2561 and the pressure plate 2562. As a result, the elastic sheet 2551 undergoes an instantaneous deformation far exceeding that of the static condition, forcefully and rapidly squeezing the heating chamber 2532, forcing the heated medium therein to flow into the medium chamber 2542 at a higher flow rate. This passive enhancement mechanism brings two beneficial effects: First, the local heating rate of the pressurized area is significantly accelerated due to the instantaneous increase in the medium circulation speed, achieving a rapid response of immediate heating upon sitting down; Second, since the pressure distribution naturally matches the area in contact with the human body, the mechanism can intelligently prioritize heating the parts that passengers actually contact, making the heat distribution more in line with the human body, improving heating efficiency while also optimizing energy consumption.

[0025] In this embodiment, the elastic material is one of silicone, thermoplastic polyurethane elastomer rubber or natural rubber, and its surface has a preset elastic modulus and wrinkle structure to allow the massage heating part 254 to smoothly expand and contract under the drive of the expansion and contraction cavity 2531.

[0026] The surface of the seat body 1 is covered with a surface covering 11, which covers the surface of the massage heating part 254 of the actuator 25. This not only effectively avoids direct contact between the massage heating part 254 and the occupant, but also further enhances the comfort of the ride by utilizing the elasticity and cushioning properties of the fabric.

[0027] The wiring portion of the graphene heating element 258 penetrates the actuator housing 253 and extends into the lead plate 252. The first air supply pipe 2591 and the second air supply pipe 2592 of each actuator 25 are introduced into the lead plate 252 to avoid the circuit and pipeline from being messed up and squeezed, which could lead to breakage.

[0028] Its working principle is as follows: The system coordinates the operation of the air pump 23 and the solenoid valve group through the controller according to the preset mode; the air path is divided into the main path controlling the expansion and contraction chamber 2531 and the auxiliary path controlling the airbag 256; when massage is needed, the main path inflates and deflates the air to drive the massage heating part 254 to move, and at the same time, the volume of the airbag 256 can be adjusted through the auxiliary path to change the percussion force; when heating is needed, the auxiliary path controls the airbag 256 to rhythmically expand and contract, and the pressure plate 2562 driven by it squeezes the elastic plate 2551, pumping the medium heated by the graphene heating plate 258 in the heating chamber 2532 into the medium chamber 2542 to achieve circulating heating; if massage and heating are performed at the same time, the main and auxiliary paths work together to make the percussion action and heat delivery occur synchronously; in addition, the passenger's weight will naturally enhance the pumping effect of the actuator 25 at the contact part, realizing local focus and rapid start of heating, thereby achieving an efficient, intelligent, multi-mode coordinated thermal massage experience.

[0029] Compared with the prior art, the present invention adopts a dual-chamber integrated structure and a dual-air-path independent control system inside the actuator 25, which highly integrates the adjustable mechanical tapping massage mechanism and the dynamically following medium circulation heating mechanism into a single compact unit. This not only significantly reduces the module size and structural complexity, but also achieves real-time and precise coordination of massage action and heat transfer, and realizes a comfortable experience of synchronous heating of the massage position. Meanwhile, the independently controlled airbag 256 air path allows for stepless adjustment of the single tapping intensity without changing the massage frequency, meeting the user's personalized needs. This solution also utilizes the pressure generated by the human body's own weight on the actuator 25 to passively improve the pumping efficiency of the medium in the contact area, achieving a rapid response of instant heating and intelligent energy-saving effect of distributing heat on demand, thereby significantly improving the overall comfort, functionality, reliability and energy efficiency of the car seat.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A car seat with a graphene heating device, comprising a seat body (1) and a massage heating module (2) disposed thereon, characterized in that: The massage heating module (2) includes a lower base plate (21), an upper base plate (22) and an air pump (23). The lower base plate (21) and the upper base plate (22) are respectively provided with a plurality of actuators (25) and a solenoid valve for controlling the opening and closing of the air passage. The air pump (23) is connected to the lower substrate (21) and the upper substrate (22) respectively through the air guide pipe (24), and the airflow direction is controlled by the solenoid valve; The actuator (25) includes an actuator housing (253) and a retractable massage heating part (254). The massage heating part (254) has a medium cavity (2542). The actuator housing (253) is divided into an expansion and contraction cavity (2531) and a heating cavity (2532) by a partition (255). The expansion and contraction chamber (2531) is provided with an airbag (256) and a force spring (257). The airbag (256) and the expansion and contraction chamber (2531) have independent air paths and are respectively connected to and controlled by the air pump (23) through the solenoid valve. The massage heating unit (254) is driven to perform extension, contraction and tapping actions by controlling the inflation and deflation of the expansion and contraction chamber (2531); By controlling the inflation degree of the airbag (256), the initial preload force of the force-applying spring (257) acting on the massage heating part (254) is adjusted; Furthermore, during the inflation and deflation process, the airbag (256) can drive the thermal medium to circulate between the heating chamber (2532) and the medium chamber (2542); An elastic sheet (2551) is installed at the bottom of the partition (255) via a connecting ring (2552), and the elastic sheet (2551) is positioned above the heating chamber (2532); The bottom of the airbag (256) is connected to a top rod (2561), which passes through the partition (255) and is connected to a pressure plate (2562) that acts on the elastic sheet (2551). The inner wall of the connecting ring (2552) is provided with a one-way liquid delivery pipe (2553) and a one-way liquid return pipe (2554). The heating chamber (2532) is connected to the medium chamber (2542) through the one-way liquid delivery pipe (2553) and the one-way liquid return pipe (2554), forming a one-way circulation loop of the heat medium; During expansion or contraction, the airbag (256) compresses the elastic sheet (2551) through the pressure plate (2562), causing the heat medium to circulate unidirectionally between the heating chamber (2532) and the medium chamber (2542).

2. A car seat with a graphene heating device according to claim 1, characterized in that: The elastic sheet (2551) is made of either an elastic metal sheet or a high-temperature resistant polymer elastic component.

3. A car seat with a graphene heating device according to claim 1, characterized in that: The actuator (25) also includes an assembly plate (251) and a lead plate (252), and a plurality of actuator housings (253) are fixed on the assembly plate (251).

4. A car seat with a graphene heating device according to claim 1, characterized in that: The massage heating part (254) has folded portions (2541) around its perimeter, and the folded portions (2541) are made of elastic material; The elastic material is one of silicone, thermoplastic polyurethane elastomer rubber or natural rubber, and its surface has a preset elastic modulus and wrinkle structure to allow the massage heating part (254) to smoothly expand and contract under the drive of the expansion and contraction cavity (2531).

5. A car seat with a graphene heating device according to claim 1, characterized in that: The heating chamber (2532) is provided with a graphene heating element (258), and the wiring portion of the graphene heating element (258) passes through the actuator housing (253) and extends into the lead plate (252).

6. A car seat with a graphene heating device according to claim 1, characterized in that: The bottom of the partition (255) is connected to a guide tube (259) that penetrates the bottom of the actuator housing (253). The guide tube (259) is respectively sealed with a first air supply pipe (2591) and a second air supply pipe (2592). The first air supply pipe (2591) is connected to the inside of the air bag (256), and the second air supply pipe (2592) is connected to the inside of the expansion and contraction chamber (2531).

7. A car seat with a graphene heating device as described in claim 1, characterized in that, The surface of the seat body (1) is covered with a surface coating (11), which covers the surface of the massage heating part (254) of the actuator (25).

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