Seat comfort system and seat

Abstract

The utility model relates to the technical field of seats, in particular to a seat comfort system and a seat. The seat comfort system comprises a temperature control assembly, a ventilation assembly, an air source device and a controller. The temperature control assembly is used for adjusting the temperature of the seat, the ventilation assembly is used for exhausting and ventilating the seat, the air source device is used for providing continuous airflow, and the controller is used for independently controlling connection and disconnection of air paths between the air source device and the temperature control assembly and between the air source device and the ventilation assembly. Heat dissipation is achieved by adjusting the temperature through the temperature control assembly, moisture is pumped away through ventilation of the ventilation assembly, the humidity of the environment of the seat can be rapidly reduced while rapid cooling is achieved, the state that the temperature is reduced but the humidity is not reduced is avoided, the user experience is improved, and the user experience reaches the most comfortable state. The temperature control assembly and the ventilation assembly share the air source device, and cost is reduced. The ventilation pipe has an airflow multiplication effect, the heat dissipation effect on the seat is enhanced, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of seating technology, and more particularly to a seating comfort system and a seat. Background Technology

[0002] With the improvement of production levels, automobiles, ships, trains, high-speed trains, airplanes, and other transportation devices have brought many conveniences to people's lives, work, and study, occupying an important position in people's travel. As people's living standards improve, their demands for travel comfort are becoming increasingly strong.

[0003] Two crucial factors affecting seating comfort are temperature and humidity. In most related technologies, seats utilize fans as an air source, dissipating heat by blowing or drawing air into the seating area. However, existing ventilation fans have limited negative pressure, failing to provide rapid cooling. Furthermore, their effectiveness is limited in high ambient temperatures. Additionally, when users sit in the seat and sweat due to high seat or cabin temperatures, the increased humidity further impacts the user's comfort. In such cases, simply cooling the seat doesn't immediately provide optimal comfort. Utility Model Content

[0004] The present application aims to provide a seat comfort system and seat, which can at least improve the problem that if the user sweats due to excessive temperature in the seat or cabin, the sweat will cause the humidity to rise. At this time, both temperature and humidity will affect the user's riding experience. In this case, simple fan ventilation cannot immediately make the user feel the most comfortable state.

[0005] In order to solve the above-mentioned technical problems, the embodiments of this application adopt the following technical solutions:

[0006] In a first aspect, embodiments of this application provide a seat comfort system, the seat comfort system including a temperature control component, a ventilation component, an air source device, and a controller; the temperature control component includes a vortex tube and a heat exchange bag assembly, the vortex tube includes a fluid inlet, a cold source outlet, and a heat source outlet, the cold source outlet is fluidly connected to the heat exchange bag assembly through a cold source regulating valve, and the heat source outlet is fluidly connected to the heat exchange bag assembly through a heat source regulating valve; the ventilation component includes a ventilation pad and a ventilation pipe, the ventilation pad includes a sealing sleeve and a breathable partition wrapped inside the sealing sleeve, the sealing sleeve being open... The system is provided with multiple first ventilation holes and at least one second ventilation hole; the ventilation pipe includes an outer pipe and a conduit, one end of the outer pipe is sealed and connected to the second ventilation hole, and one end of the conduit is disposed inside the outer pipe with its port facing the other end of the outer pipe; the air source device is used to provide continuous airflow, and the air source device is in fluid communication with the fluid inlet and the conduit; the controller is disposed in the air passage between the air source device and the fluid inlet and the conduit, and the controller is used to independently control the opening and closing of the air passage between the air source device and the fluid inlet and the conduit respectively.

[0007] In some embodiments, the heat exchange bag assembly includes a plurality of air bags in fluid communication with each other.

[0008] In some embodiments, the air source device includes a negative pressure air inlet, which is in fluid communication with the heat exchange bag assembly.

[0009] In some embodiments, the ventilation duct further includes an inner tube, the inner diameter of one end of the inner tube being larger than the inner diameter of the other end, one end of the outer tube being sealed to the larger end of the inner tube, a portion of the inner wall of the outer tube and the inner tube forming an air chamber, and another portion of the outer tube forming a slit between the outer wall and the outer wall corresponding to the smaller end of the inner tube, the slit allowing fluid communication between the air chamber and the outside of the outer tube; the air source device is fluidly connected to the air chamber, and the controller is located in the air passage between the air source device and the air chamber, the controller being used to independently control the opening and closing of the air passage between the air source device and the fluid inlet, the conduit and the air chamber respectively.

[0010] In some embodiments, a portion of the inner wall of the outer tube has a Coanda surface, and the slit is formed between the Coanda surface and the outer wall corresponding to the small end of the inner tube.

[0011] In some embodiments, the outer tube includes a constriction section, a throat section, and an extension section connected sequentially along a first direction, wherein the constriction section forms the air chamber with the inner tube, and the portion of the inner wall of the constriction section near the throat section has the Coanda surface.

[0012] In some embodiments, the ventilation assembly includes a plurality of ventilation pipes, the sealing sleeve is provided with a plurality of second ventilation holes, and the outer pipes of the plurality of ventilation pipes are connected one by one to the plurality of second ventilation holes; the controller is used to independently control the opening and closing of the air passage between the air source device and the conduits of the plurality of ventilation pipes.

[0013] In some embodiments, at least two of the ventilation ducts have different outer pipe diameters.

[0014] Secondly, embodiments of this application provide a seat, the seat including the seat comfort system as described above, wherein at least one of the seat, backrest, armrest, leg and headrest of the seat is provided with the heat exchange bag assembly.

[0015] In some embodiments, at least one of the seat, backrest, armrest, leg rest, and headrest of the seat is provided with the ventilation pad, and the first ventilation hole faces the seating space of the seat.

[0016] In the seat comfort system of this application embodiment, when gas is introduced into the duct and ejected from the outer tube, a negative pressure is generated on the side of the outer tube opposite to the ejection direction of the duct port. This causes the outer tube to draw in gas, resulting in a small airflow driving a large airflow through the ventilation duct, i.e., generating a larger output airflow with a smaller input airflow, producing an airflow multiplication effect. Gas is drawn from the ventilation pad through the ventilation duct, and further drawn from the side where the first ventilation hole of the ventilation pad is located. When the seat comfort system is applied to a seat, the ventilation component helps to enhance the heat dissipation effect and improve the heat dissipation efficiency of the seat, allowing the seat to cool down quickly.

[0017] When gas is introduced into the vortex tube, the temperature of the heat exchange bag assembly can be adjusted by regulating the opening of the cold source regulating valve and the heat source regulating valve. When the seat comfort system is applied to the seat, the temperature control component can regulate the seat temperature, such as heating the seat or dissipating heat from the seat.

[0018] Temperature is regulated by a temperature control component to dissipate heat, while ventilation components remove moisture. This system rapidly cools the seat and quickly reduces humidity, preventing a situation where temperature drops but humidity remains high. This improves user comfort and minimizes the health risks associated with cold air cooling and dehumidification. The temperature control and ventilation components share an air source, reducing costs.

[0019] The seat in this embodiment of the application is equipped with the aforementioned seat comfort system, which improves the seat's dehumidification and heat dissipation effects.

[0020] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0021] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0022] Figure 1 This is a structural schematic diagram of the seat according to an embodiment of this application;

[0023] Figure 2 This is a structural schematic diagram of the seat from another perspective according to an embodiment of this application;

[0024] Figure 3 yes Figure 2 A three-dimensional sectional view of the ventilation pad;

[0025] Figure 4 This is a schematic diagram of the ventilation duct structure according to an embodiment of this application;

[0026] Figure 5 This is an axial cross-sectional view of the ventilation duct according to an embodiment of this application;

[0027] Figure 6 This is a schematic diagram illustrating the superposition of airflow ejected from the slit in the ventilation duct and airflow ejected from the duct in an embodiment of this application.

[0028] The reference numerals in the detailed embodiments are as follows:

[0029] 100. Seat comfort system;

[0030] 1. Temperature control assembly; 11. Vortex tube; 111. Fluid inlet; 112. Cold source outlet; 113. Heat source outlet; 12. Heat exchange bag assembly; 121. Air bag; 13. Cold source regulating valve; 14. Heat source regulating valve;

[0031] 2. Ventilation components;

[0032] 21. Ventilation pad; 211. Sealing sleeve; 2111. First ventilation hole; 2112. Second ventilation hole; 212. Breathable partition; 2121. Gas passage;

[0033] 22. Ventilation duct; 221. Outer duct; 2211. Coanda surface; 2212. First fluid channel; 2213. Second fluid channel; 2214. Contraction section; 2215. Throat section; 2216. Extension section;

[0034] 222, conduit; 2221, inlet section; 2222, ejaculation section; 2223, bend section;

[0035] 223. Inner tube;

[0036] a. Air chamber; b. Slit; 224. First connector; 225. Second connector;

[0037] 3. Air source device; 31. Positive pressure air outlet; 32. Negative pressure air inlet;

[0038] 4. Controller;

[0039] 200. Seat; 210. Seat body;

[0040] X, the first direction. Detailed Implementation

[0041] To facilitate understanding of this application, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a more detailed account. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0043] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to 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, they should not be construed as limitations on the embodiments of this application.

[0044] In the description of the embodiments of this application, the terms "first," "second," etc., are used to define components merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0045] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0046] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0047] Please see Figure 1 and Figure 2 This application provides a seat comfort system 100, which includes a temperature control component 1, a ventilation component 2, an air source device 3, and a controller 4.

[0048] For ease of description, this application uses the seat comfort system 100 applied to a seat as an example. It should be noted that the application of the seat comfort system 100 to a seat is merely an example to illustrate its ventilation and temperature regulation effect on the seat. The seat comfort system 100 can also be applied to other external devices that require temperature regulation and / or ventilation.

[0049] The temperature control component 1 is used to adjust the temperature of the seat, the ventilation component 2 is used to ventilate the seat, the air source device 3 is used to provide air source for the temperature control component 1 and the ventilation component 2, and the controller 4 is used to control the opening and closing of the air passage between the air source device 3 and the temperature control component 1 and the ventilation component 2.

[0050] Temperature is regulated by temperature control component 1 to achieve heat dissipation, while ventilation component 2 draws in air to remove moisture. This rapid cooling also quickly reduces humidity in the seat environment, preventing a situation where temperature drops but humidity remains high, thus improving user comfort and mitigating the health risks associated with cold air cooling and dehumidification. Temperature control component 1 and ventilation component 2 share the same air source device 3, reducing costs.

[0051] The air source device 3 described above provides a continuous airflow to supply the temperature control component 1 and the ventilation component 2. For example, please refer to... Figure 1The air source device 3 is provided with a positive pressure air outlet 31, which is fluidly connected to the temperature control component 1 and the ventilation component 2 through a pipeline. Optionally, the air source device 3 is an air compressor, air pump, etc., to provide compressed air.

[0052] The controller 4 mentioned above can be a solenoid valve or include multiple solenoid valves, or an SMA (Shape Memory Alloy) valve, etc. It only needs to be able to control the opening and closing of the air passage.

[0053] For the temperature control component 1 mentioned above, please refer to Figure 1 The temperature control component 1 includes a vortex tube 11 and a heat exchange bag assembly 12. The vortex tube 11 includes a fluid inlet 111, a cold source outlet 112 and a heat source outlet 113. The cold source outlet 112 is fluidly connected to the heat exchange bag assembly 12 through a cold source regulating valve 13, and the heat source outlet 113 is fluidly connected to the heat exchange bag assembly 12 through a heat source regulating valve 14.

[0054] The vortex tube 11 is used to split the airflow introduced into the fluid inlet 111 into two gas streams, which flow out from the cold source outlet 112 and the hot source outlet 113, respectively. The temperature of the gas flowing out of the cold source outlet 112 is lower than the temperature of the gas introduced into the fluid inlet 111, and the temperature of the gas flowing out of the hot source outlet 113 is higher than the temperature of the gas introduced into the fluid inlet 111.

[0055] The gas source device 3 is in fluid communication with the fluid inlet 111. The controller 4 is located in the gas path between the gas source device 3 and the fluid inlet 111. The controller 4 is used to control the opening and closing of the gas path between the gas source device 3 and the fluid inlet 111. For example, the gas source device 3 and the controller 4 are in fluid communication through a pipeline, and the controller 4 is in fluid communication with the fluid inlet 111 through a pipeline.

[0056] The cold source regulating valve 13 is located in the air path between the cold source outlet 112 and the heat exchange bag assembly 12, and the heat source regulating valve 14 is located in the air path between the heat source outlet 113 and the heat exchange bag assembly 12. By adjusting the opening of the cold source regulating valve 13 and the heat source regulating valve 14, the ratio of gas flowing out of the cold source outlet 112 and the heat source outlet 113 into the heat exchange bag assembly 12 can be adjusted, thereby regulating the temperature of the heat exchange bag assembly 12. When the seat comfort system 100 is applied to a seat, for example, when the heat exchange bag assembly 12 is installed in the seat, the heat exchange bag assembly 12 can exchange heat with the seat, thereby regulating the temperature of the seat, such as heating the seat or dissipating heat from the seat. Optionally, the heat exchange bag assembly 12 is an aluminum bag, as aluminum has good thermal conductivity, enhancing the heat exchange effect of the heat exchange bag assembly 12.

[0057] In related technologies, the ventilation and heat exchange of the seat is arranged around the entire seat, but the person sitting does not come into contact with the entire surface of the seat. Some of the cold / hot air does not have an effect on the person sitting, which not only leads to low ventilation and heat exchange efficiency, but also wastes some hot / cold air.

[0058] It should be noted that chairs typically have multiple sections, such as the seat, backrest, armrest, leg rest, and headrest, each corresponding to a part of the occupant's body. The seat supports the occupant's buttocks and thighs, the backrest provides support for the occupant's back, the armrest supports the occupant's arms, the leg rest provides support for the occupant's lower legs, and the headrest provides support for the occupant's head.

[0059] In some embodiments, please refer to Figure 1 The heat exchange bag assembly 12 is located in the center of the seat or the center of the back of the seat. This concentrates the heat exchange of the seat at the point of contact with the occupant, improving heat exchange efficiency, reducing gas waste, and increasing energy efficiency. The heat exchange bag assembly 12 can also be located in the armrests, leg rests, and headrests of the seat, and can be located in the center of these areas.

[0060] In some embodiments, please refer to Figure 1 There are multiple heat exchange bag groups 12, which are respectively arranged in different sections of the seat. For example, one heat exchange bag group 12 is arranged in the seat part and another heat exchange bag group 12 is arranged in the back of the seat.

[0061] In some embodiments, please refer to Figure 1 The heat exchange bag assembly 12 includes multiple air bags 121 that are fluidly connected to each other. Exemplarily, the multiple air bags 121 include a larger air bag 121 and multiple smaller air bags 121, with the smaller air bags 121 fluidly connected to the larger air bag 121 via pipes. In other embodiments, the multiple air bags 121 may also be connected in series, in parallel, or in a mixed series-parallel connection. By setting multiple air bags 121, the positional distribution of the multiple air bags 121 can be adjusted according to the shape of the contact surface between the seat occupant and the seat, making the heat exchange position of the seat more concentrated at the position in contact with the occupant, improving heat exchange efficiency, reducing gas waste, and improving energy efficiency. Optionally, the air bags 121 are rectangular or circular flat plates.

[0062] In some embodiments, please refer to Figure 1The air source device 3 includes a negative pressure air inlet 32, which is in fluid communication with the heat exchange bag assembly 12. By drawing gas from the heat exchange bag assembly 12 through the air source device 3, the flow rate of the gas within the heat exchange bag assembly 12 is accelerated, thereby improving heat exchange efficiency. Furthermore, the gas discharged from the heat exchange bag assembly 12 is reused by the air source device 3, and some of the gas circulates within the seat comfort system 100, reducing gas exchange between the seat comfort system 100 and the external environment, and reducing gas noise.

[0063] For the ventilation component 2 mentioned above, please refer to Figure 1 The ventilation assembly 2 includes a ventilation pad 21 and a ventilation duct 22. The ventilation pad 21 is used to be placed on the seat and / or back of the seat, and the ventilation duct 22 is used to draw gas from the ventilation pad 21 or blow gas into the ventilation pad 21 to ventilate the seating space of the seat through the ventilation pad 21.

[0064] The seating space includes not only the seat and the semi-enclosed space surrounding it, but also the space where the occupant can move around while seated. This includes, for example, the space around the occupant's legs, the space for arm movement, and the space for head movement.

[0065] For the ventilation pad 21 mentioned above, please refer to Figure 3 The ventilation pad 21 includes a sealing sleeve 211 and a breathable partition 212 enclosed inside the sealing sleeve 211. The sealing sleeve 211 has multiple first ventilation holes 2111 and at least one second ventilation hole 2112. One end of the ventilation pipe 22 is sealed and connected to the second ventilation hole 2112. The breathable partition 212 is mesh-like, allowing airflow to flow inside the breathable partition 212, and has a certain supporting force so as not to block the fluid passage when the sealing sleeve 211 is under pressure.

[0066] In some embodiments, please refer to Figure 2 The ventilation pad 21 is applied to the seat. For example, the ventilation pad 21 is installed in the seat to dissipate heat. The first ventilation hole 2111 faces the seating space of the seat, which is used by the occupant. When the first ventilation hole 2111 draws in or blows air, it can remove air from the area around the occupant, thereby dissipating heat from the seating space. The ventilation pad 21 is located inside the seat or is part of the seat; when the first ventilation hole 2111 draws in or blows air, it also dissipates heat from the seat.

[0067] In some embodiments, the plurality of first ventilation holes 2111 include a plurality of first ventilation holes 2111 with different shapes and sizes, thereby having different air intake and air blowing effects. For example, one of the first ventilation holes 2111 on the sealing sleeve 211 is circular, another of the first ventilation holes 2111 is rectangular, and yet another of the first ventilation holes 2111 is triangular, etc. For example, the sealing sleeve 211 has a plurality of circular first ventilation holes 2111, one of the first ventilation holes 2111 has a diameter of 1 cm, another of the first ventilation holes 2111 has a diameter of 2 cm, and yet another of the first ventilation holes 2111 has a diameter of 3 cm, etc.

[0068] In some embodiments, the number of first ventilation holes 2111 is greater than the number of second ventilation holes 2112. That is, the ventilation pad 21 has a diversion function, which helps to form a larger number of air inlets or outlets in the seat, thereby improving the uniformity of air blowing or inhaling from the seat to the occupant.

[0069] The second ventilation hole 2112 is positioned opposite to the first ventilation hole 2111, meaning that the first ventilation hole 2111 and the second ventilation hole 2112 are located on opposite sides of the ventilation pad 21, for example, on opposite sides along the thickness direction of the ventilation pad 21. This allows gas to pass through the ventilation pad 21 in one direction, which helps reduce the resistance encountered by the gas within the ventilation pad 21, reduces gas energy loss, and improves the heat dissipation effect on the seat. Furthermore, in this embodiment, the first ventilation hole 2111 and the second ventilation hole 2112 are located on opposite sides along the thickness direction of the ventilation pad 21, which helps to shorten the path length of the gas flow within the ventilation pad 21 and reduce gas energy loss.

[0070] In some embodiments, please refer to Figure 2 and Figure 3 The ventilation pad 21 is flat, making it easy to cover the seat frame or be installed inside the seat, minimizing its impact on seat dimensions. The ventilation pad 21 can be used directly as a seat cover, reducing the resistance to ventilation caused by the original seat cover and allowing for a smaller seat size. Optionally, the ventilation pad 21 is rectangular. Optionally, the ventilation pad 21 is adapted to the shape of the seat cover, thus directly replacing the original seat cover.

[0071] In some embodiments, the sealing sleeve 211 is elastic or plastic, and can deform when a occupant sits on the seat and applies pressure to the sealing sleeve 211, thereby improving the occupant's comfort. The sealing sleeve 211 can be made of genuine leather, artificial leather, plastic, rubber, silicone, etc.

[0072] It should be noted that when air is inhaled or exhaled onto the sealing sleeve 211, the sealing sleeve 211 will expand or contract due to changes in internal air pressure, affecting the shape of the seat and the comfort of the occupant. The breathable layer 212, supported within the ventilation pad 21, can support the sealing sleeve 211 when air is inhaled, mitigating the contraction problem. The breathable layer 212 can be bonded to the inner wall of the sealing sleeve 211, and when air is exhaled onto the sealing sleeve 211, it can hold the sealing sleeve 211 in place, mitigating its expansion problem. Optionally, the breathable layer 212 can be made of plastic, metal, or other materials, possessing a certain strength and elasticity to address the issues of the ventilation pad 21's tendency to collapse and its excessive rigidity leading to poor seat comfort.

[0073] In some embodiments, please refer to Figure 3 The breathable barrier 212 has gas channels 2121 along its thickness direction, and multiple gas channels 2121 are arranged at intervals along the length and width directions of the breathable barrier 212. Gas can pass through the breathable barrier 212 along its thickness direction, reducing the obstruction of the breathable barrier 212 to the gas and reducing gas energy loss.

[0074] In this design, a gap exists between the breathable partition 212 and the inner wall of the sealing sleeve 211 along the thickness direction of the breathable partition 212, allowing gas to flow in a direction perpendicular to the thickness of the breathable partition 212. It is understood that the first ventilation hole 2111 and the second ventilation hole 2112 may not be directly aligned along the thickness direction of the ventilation pad 21. Therefore, gas needs to flow a certain distance perpendicular to the thickness of the ventilation pad 21 before it can flow from one of the first ventilation hole 2111 to the other. By providing a gap between the breathable partition 212 and the inner wall of the sealing sleeve 211, a channel perpendicular to the thickness direction of the ventilation pad 21 can be formed. This not only allows gas flow between the first ventilation hole 2111 and the second ventilation hole 2112, but also makes the suction or blowing intensity of the multiple first ventilation holes 2111 more uniform. In some other embodiments, the breathable partition 212 also has a gas channel 2121 perpendicular to its thickness direction.

[0075] For the ventilation duct 22 mentioned above, please refer to Figure 4 and Figure 5 The ventilation duct 22 includes an outer pipe 221 and a conduit 222. One end of the outer pipe 221 is sealed and connected to the second ventilation hole 2112. One end of the conduit 222 is located inside the outer pipe 221 and its port faces the other end of the outer pipe 221. The air source device 3 is in fluid communication with the conduit 222. The controller 4 is located in the air passage between the air source device 3 and the conduit 222. The controller 4 is used to control the opening and closing of the air passage between the air source device 3 and the conduit 222.

[0076] For example, the outer tube 221 is tubular, such as a round tube or a square tube, and has two ports. The first end of the conduit 222 is in fluid communication with the air source device 3, and the second end of the conduit 222 is located inside the outer tube 221, with the second end of the conduit 222 facing the second end of the outer tube 221. When gas is introduced into the conduit 222, the gas is ejected from the second end of the conduit 222 toward the second end of the outer tube 221 and forms an airflow. The airflow drives the surrounding gas to flow toward the second end of the outer tube 221, thereby creating a negative pressure in the first end of the outer tube 221. That is, a negative pressure is generated in the outer tube 221 on the side of the conduit 222 port that is away from the ejection direction of the conduit 222 port, so that the first end of the outer tube 221 draws in gas from the ventilation pad 21 and discharges it from the second end of the outer tube 221, thereby realizing the ventilation assembly 2 to ventilate the seat. The negative pressure generated at the first end of the outer tube 221 causes it to draw in more gas from the ventilation pad 21, resulting in both the gas flow rate drawn in and the gas flow rate discharged from the outer tube 221 being significantly greater than the gas flow rate of the duct 222. This allows the ventilation duct 22 to generate a larger airflow with a smaller input airflow, creating an airflow multiplication effect, increasing the gas flow rate of the ventilation duct 22, and enhancing the ventilation effect of the seat comfort system 100. This also enhances the heat dissipation effect and improves the heat dissipation efficiency of the seat, allowing it to cool down quickly.

[0077] In some embodiments, the controller 4 is used to independently control the opening and closing of the air passage between the air source device 3 and the fluid inlet 111 and the conduit 222. For example, the fluid inlet 111 and the conduit 222 are respectively fluidly connected to the controller 4 through pipes. This allows for the independent control of the operating states of the temperature control component 1 and the ventilation component 2.

[0078] In some embodiments, please refer to Figure 4 and Figure 5 The ventilation duct 22 also includes an inner duct 223, the inner diameter of one end of the inner duct 223 being larger than the inner diameter of the other end. One end of the outer duct 221 is sealed to the larger end of the inner duct 223. A portion of the inner wall of the outer duct 221 and the inner duct 223 enclose an air chamber a. Another portion of the outer duct 221 and the corresponding outer wall of the smaller end of the inner duct 223 form a slit b, allowing fluid communication between the air chamber a and the outside of the outer duct 221. The air source device 3 is fluidly connected to the air chamber a. A controller 4 is located in the air passage between the air source device 3 and the air chamber a, and is used to control the opening and closing of the air passage between the air source device 3 and the air chamber a. A single air source device 3 is used to supply air to both the duct 222 and the air chamber a, reducing the number of air source devices 3 and lowering production costs.

[0079] Exemplarily, the inner tube 223 is tubular, such as a round tube or a square tube, and has two ports. The first end of the inner tube 223 is sealed to the first end of the outer tube 221, and the second end of the inner tube 223 extends toward the second end of the outer tube 221. There is a gap between the inner tube 223 and the outer tube 221, for example, the inner tube 223 is recessed in a direction away from the outer tube 221, and / or the outer tube 221 is recessed in a direction away from the inner tube 223, thereby forming an air chamber a between the inner tube 223 and the outer tube 221. The second end of the inner tube 223 is close to the inner wall of the outer tube 221, thereby forming a slit b between the inner tube 223 and the inner wall of the outer tube 221. Wherein, when the ventilation pipe 22 includes the inner tube 223, the second end of the conduit 222 passes through the side wall of the inner tube 223 and extends to the small end of the inner tube 223 or exits the inner tube 223.

[0080] Please refer to Figure 6 , Figure 6 In the diagram, S1 represents the velocity of the gas ejected from conduit 222, and O represents the axis of conduit 222. Figure 6 It can be seen that the gas flow ejected from duct 222 is a turbulent fluid with a high velocity in the middle and a low velocity at the edges. Turbulent fluids typically have significant gas noise.

[0081] When gas is introduced into gas chamber a, the gas flows into gas chamber a and is ejected from slit b toward the second end of outer tube 221. Please continue reading. Figure 6 , Figure 6 In the diagram, S2 represents the flow rate of the gas ejected from conduit 222 after the gas from conduit 222 and the gas ejected from slit bb are superimposed. Figure 6 It can be seen that the airflow ejected from slit b will superimpose with the airflow ejected from duct 222. If the airflow ejected from slit b comes into contact with the edge of the airflow ejected from duct 222, it will increase the flow velocity at the edge of the airflow ejected from duct 222. This will change the turbulent airflow with low flow velocity at the edge of duct 222 into an airflow with a more uniform overall flow velocity, making the airflow ejected from duct 222 closer to a laminar flow state and reducing the noise of the airflow ejected from duct 222.

[0082] Furthermore, the airflow ejected from slit b increases the overall flow velocity of the gas ejected from duct 222, enhances the negative pressure generated at the first end of outer pipe 221 by the gas ejected from duct 222, enhances the effect of ventilation pipe 22 using a small airflow to drive a large airflow, and enhances the airflow multiplication effect.

[0083] In some embodiments, the controller 4 is used to independently control the opening and closing of the air passages between the gas source device 3 and the fluid inlet 111, the conduit 222, and the air chamber a. For example, the fluid inlet 111, the conduit 222, and the air chamber a are respectively fluidly connected to the controller 4 through pipes. In other embodiments, the controller 4 is used to simultaneously control the opening and closing of the air passages between the gas source device 3 and the conduit 222 and the air chamber a. For example, please refer to... Figure 2 The conduit 222 and the air chamber a are in fluid communication with the controller 4 through the same pipe, so that the controller 4 synchronously controls the air supply to the conduit 222 and the air chamber a.

[0084] In some embodiments, a portion of the inner wall of the outer tube 221 has a Coanda surface 2211, and a slit b is formed between the Coanda surface 2211 and the outer wall corresponding to the small opening end of the inner tube 223.

[0085] The Coanda effect, also known as the Coanda friction effect, occurs when there is surface friction (or fluid viscosity) between a fluid and the surface of an object over which it flows. As long as the curvature is not too large, the fluid will flow along the surface of that object. The Coanda surface 2211 is configured to generate the Coanda effect. For example, a suitable surface curvature is calculated based on the viscosity and preset flow rate of the fluid to be drawn into the ventilation duct 22. This curvature is then applied to the Coanda surface 2211, resulting in the Coanda effect when the fluid flows across it.

[0086] By creating a slit b between the Coanda surface 2211 and the outer wall of the inner tube 223, i.e., the Coanda surface 2211 at least partially defines the slit b, when gas is blown out from the slit b to form an airflow, at least a portion of the airflow passes through the Coanda surface 2211 and generates the Coanda effect. The airflow then flows along the inner wall of the outer tube 221. As the airflow flows along the inner wall of the outer tube 221, it carries away the gas on the side of the airflow away from the inner wall of the outer tube 221, causing a decrease in air pressure near the axis of the outer tube 221. This increases the negative pressure of the gas near the axis of the outer tube 221, increases the gas drawn into the outer tube 221 from the ventilation pad 21, and enhances the airflow multiplication effect.

[0087] In some embodiments, at least one of the outer tube 221, inner tube 223, and conduit 222 may be made of plastic and can be manufactured using 3D printing technology, which helps reduce production costs. Furthermore, any two or three of the outer tube 221, inner tube 223, and conduit 222 can be integrally printed. In other embodiments, at least one of the outer tube 221, inner tube 223, and conduit 222 may also be made of metal, and any two of the outer tube 221, inner tube 223, and conduit 222 may be connected integrally by assembly.

[0088] For the specific structure of the outer tube 221 described above, please refer to some embodiments. Figure 5 The outer tube 221 includes a constriction section 2214, a throat section 2215, and an extension section 2216 connected sequentially along the first direction X. An air chamber a is formed between the constriction section 2214 and the inner tube 223. A portion of the inner wall of the constriction section 2214 near the throat section 2215 has a Coanda surface 2211. Therefore, along the first direction X, the distance between at least a portion of the Coanda surface 2211 and the axis of the outer tube 221 gradually decreases, causing the distance between the airflow ejected from the slit b and the axis of the outer tube 221 to gradually decrease. This guides the airflow ejected from the slit b to superimpose with the airflow ejected from the duct 222, improving the problem that the airflow ejected from the slit b cannot superimpose with the airflow ejected from the duct 222 or has a poor superposition effect.

[0089] In some embodiments, please refer to Figure 5 The extension section 2216 is conical, and its small end joins the throat section 2215. That is, along the first direction X, the inner diameter of the outer tube 221 first decreases and then increases, forming a Laval tube; and the Coanda surface 2211 is at least partially located in the contraction section 2214. Therefore, the airflow ejected from the slit b passes through the contraction section 2214, the throat section 2215 and the extension section 2216 in sequence, which accelerates the airflow ejected from the slit b, enhances the negative pressure in the outer tube 221, and causes the inner tube 223 to draw more gas from the ventilation pad 21.

[0090] In some embodiments, the air chamber a is annular and surrounds the conduit 222. For example, please refer to... Figure 5 When both the inner tube 223 and the outer tube 221 have sections corresponding to air chamber a that are rotating bodies, air chamber a is annular. Since the second end of the conduit 222 extends to the second end of the inner tube 223, air chamber a surrounds the conduit 222. By making air chamber a annular, the gas flowing toward the slit b is also annular. In some other embodiments, the section of the inner tube 223 corresponding to air chamber a may also partially contact the inner wall of the contraction section 2214; in this case, air chamber a is not a complete annular shape, but may be C-shaped, U-shaped, flat, etc.

[0091] In some embodiments, slit b is annular and surrounds conduit 222. For example, see [link to example]. Figure 5 When both the inner tube 223 and the outer tube 221 are rotating bodies corresponding to the slit b, the slit b is annular, and the gas ejected from the slit b is annular. Since the second end of the conduit 222 extends to the second end of the inner tube 223, the slit b surrounds the conduit 222, and the gas ejected from the slit b surrounds the gas ejected from the conduit 222. In some other embodiments, the section of the inner tube 223 corresponding to the slit b may also partially contact the inner wall of the contraction section 2214. In this case, the slit b is not a complete annular shape, for example, it is C-shaped, U-shaped, flat, etc.

[0092] In some embodiments, please refer to Figure 5 The inner diameter of the inner tube 223 gradually decreases from its wide end to the slit b, while the inner diameter of the inner wall of the portion of the inner tube 223 corresponding to the slit b gradually increases. That is, along the first direction X, the inner diameter of the inner tube 223 first decreases and then increases, forming a Laval tube. This accelerates the gas drawn into the inner tube 223, increases the gas flow velocity through the inner tube 223, and enhances the negative pressure inside the inner tube 223, causing the inner tube 223 to draw in more gas from the ventilation pad 21.

[0093] For the specific construction of the catheter 222 described above, please refer to some embodiments. Figure 5 The conduit 222 includes an inlet section 2221 and an outlet section 2222. The inlet section 2221 is located within the wall of the outer pipe 221, specifically within the wall of the contraction section 2214. The outlet section 2222 is in fluid communication with the inlet section 2221. The outlet section 2222 is located within the contraction section 2214, with its port facing the second end of the outer pipe 221, i.e., towards the extension section 2216. By placing the inlet section 2221 within the wall of the outer pipe 221, it is beneficial to separate the pipe connected to the inlet section 2221 from the first end of the outer pipe 221, reducing interference between the outer pipe 221 and the second ventilation hole 2112. Furthermore, it reduces the volume occupied by the conduit 222 within the contraction section 2214, allowing the contraction section 2214 to draw in more gas.

[0094] In some embodiments, please refer to Figure 5 The port of conduit 222 located within inner tube 223 ejects gas in a direction parallel to the first direction X. For example, the axis of ejection section 2222 is parallel to the first direction X. Thus, when gas is ejected from ejection section 2222, the airflow direction points towards extension section 2216, and the airflow ejected from ejection section 2222 does not need to change its flow direction within extension section 2216, which helps reduce gas energy loss.

[0095] In some embodiments, please refer to Figure 5 The inlet section 2221 extends radially along the constriction section 2214, and the conduit 222 is partially curved to connect with the inlet section 2221. Exemplarily, the conduit 222 also includes a curved section 2223, which is a bend in the tube and connects the inlet section 2221 to the outlet section 2222. It is understood that the angle between the axis of the inlet section 2221 and the axis of the outlet section 2222 is a right angle. When gas directly enters the outlet section 2222 from the inlet section 2221, it will lose a significant amount of energy. By smoothly connecting the inlet section 2221 and the outlet section 2222 through the curved section 2223, the energy loss of the gas can be reduced.

[0096] In some embodiments, please refer to Figure 5 The outer pipe 221 is provided with a first fluid channel 2212 for introducing a fluid source, and the first fluid channel 2212 is in fluid communication with the conduit 222; the ventilation pipe 22 also includes a first connector 224, which is disposed on the outer wall of the contraction section 2214 and is in fluid communication with the first fluid channel 2212. Exemplarily, both ends of the first fluid channel 2212 are in fluid communication with the first connector 224 and the conduit 222, respectively. The first connector 224 is used to connect the pipe, facilitating the flow and communication between the conduit 222 and an external air source.

[0097] In some embodiments, please refer to Figure 5 The outer pipe 221 is provided with a second fluid channel 2213 for introducing a fluid source, and the second fluid channel 2213 is in fluid communication with the air chamber a; the ventilation pipe 22 also includes a second connector 225, which is disposed on the outer wall of the contraction section 2214 and is in fluid communication with the second fluid channel 2213. Exemplarily, both ends of the second fluid channel 2213 are in fluid communication with the second connector 225 and the air chamber a, respectively. The second connector 225 is used to connect the pipe, facilitating the flow and communication between the air chamber a and an external air source.

[0098] In some embodiments, please refer to Figure 2 The ventilation assembly 2 includes multiple ventilation pipes 22, and the sealing sleeve 211 is provided with multiple second ventilation holes 2112. The outer tubes 221 of the multiple ventilation pipes 22 are connected one by one to the multiple second ventilation holes 2112. That is, each ventilation pipe 22 is in fluid communication with a second ventilation hole 2112, and the ventilation pad 21 is in fluid communication with multiple ventilation pipes 22, thereby enhancing the heat dissipation effect of the ventilation pad 21.

[0099] In some embodiments, the ventilation assembly 2 includes various types of ventilation ducts 22. For example, the ventilation ducts 22 have various models, and different models of ventilation ducts 22 have different shapes and / or sizes, thereby having different air intake and air blowing effects. Multiple ventilation ducts 22 connected to the same ventilation pad 21 may include various models, that is, a ventilation pad 21 is equipped with multiple models of ventilation ducts 22, that is, the ventilation assembly 2 includes multiple models of ventilation ducts 22.

[0100] In some embodiments, at least two ventilation ducts 22 in the ventilation assembly 2 have different outer tube diameters 221, thereby giving the two ventilation ducts 22 different intake and exhaust effects. That is, in the seat comfort system 100, at least two ventilation ducts 22 have different outer tube diameters 221.

[0101] In some embodiments, the controller 4 is used to independently control the opening and closing of the air passage between the air source device 3 and the ducts 222 of the plurality of ventilation pipes 22. This allows control of the airflow rate drawn into the ventilation cushion 21 and the heat dissipation intensity of the seat. For example, based on the different ventilation levels required by the occupant of the seat, the controller can control the corresponding number of ventilation pipes 22 to draw air into the ventilation cushion 21, thereby adjusting the intensity of airflow from the ventilation cushion 21 to the occupant, i.e., controlling the heat dissipation intensity of the seat. It is understood that the controller 4 is also used to independently control the opening and closing of the air passage between the air source device 3 and the air chambers a of the plurality of ventilation pipes 22, i.e., the controller 4 is used to independently control the opening and closing of the air passage between the air source device 3 and any one of the ventilation pipes 22.

[0102] Based on the same inventive concept, this application also provides a seat 200, please refer to... Figure 1 The seat 200 includes the seat comfort system 100 as described above, and at least one of the seat, backrest, armrest, leg rest, and headrest of the seat 200 is provided with a heat exchange bag assembly 12. Exemplarily, the seat 200 includes a seat body 210 and the seat comfort system 100, with the heat exchange bag assembly 12 disposed on the seat body 210. The seat 200 is provided with the heat exchange bag assembly 12, allowing the seat 200 to regulate its temperature via the heat exchange bag assembly 12. The heat exchange bag assembly 12 is located on the side of the seat body 210 facing the seating space, minimizing the distance between the heat exchange bag assembly 12 and the seated person.

[0103] In some embodiments, please refer to Figure 2 At least one of the seat, backrest, armrest, leg rest, and headrest of the seat 200 is provided with a ventilation pad 21, and a first ventilation hole 2111 faces the seating space of the seat 200. Exemplarily, the ventilation pad 21 is provided on the seat body 210. The seat 200 is provided with the ventilation pad 21, allowing the seat 200 to be ventilated by air extraction through the ventilation pad 21. When both the heat exchange bag assembly 12 and the ventilation pad 21 are provided on the seat body 210, the heat exchange bag assembly 12 and the ventilation pad 21 do not interfere with each other and can work simultaneously, allowing the seat 200 to simultaneously achieve dehumidification and heat dissipation, thus improving the dehumidification and heat dissipation effects of the seat 200.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them; under the concept of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this application as described above, which are not provided in detail for the sake of brevity; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A seat comfort system, characterized in that, include: A temperature control component includes a vortex tube and a heat exchange bag assembly. The vortex tube includes a fluid inlet, a cold source outlet, and a heat source outlet. The cold source outlet is fluidly connected to the heat exchange bag assembly through a cold source regulating valve, and the heat source outlet is fluidly connected to the heat exchange bag assembly through a heat source regulating valve. A ventilation assembly includes a ventilation pad and a ventilation duct. The ventilation pad includes a sealing sleeve and a breathable partition enclosed inside the sealing sleeve. The sealing sleeve has multiple first ventilation holes and at least one second ventilation hole. The ventilation duct includes an outer tube and a conduit. One end of the outer tube is sealed to the second ventilation hole, and one end of the conduit is disposed inside the outer tube with its port facing the other end of the outer tube. A gas source device for providing a continuous airflow, the gas source device being in fluid communication with the fluid inlet and the conduit; A controller is provided in the gas path between the gas source device and the fluid inlet and the conduit. The controller is used to independently control the opening and closing of the gas path between the gas source device and the fluid inlet and the conduit.

2. The seat comfort system according to claim 1, characterized in that, The heat exchange bag assembly includes multiple air bags that are fluidly connected to each other.

3. The seat comfort system according to claim 1, characterized in that, The air source device includes a negative pressure air inlet, which is in fluid communication with the heat exchange bag assembly.

4. The seat comfort system according to claim 1, characterized in that, The ventilation duct also includes an inner tube, the inner diameter of one end of the inner tube is larger than the inner diameter of the other end of the inner tube, one end of the outer tube is sealed to the large end of the inner tube, a part of the inner wall of the outer tube and the inner tube form an air chamber, and another part of the outer tube and the outer wall corresponding to the small end of the inner tube form a slit, the slit allowing the air chamber to be in fluid communication with the outside of the outer tube. The gas source device is in fluid communication with the gas chamber, and the controller is located in the gas path between the gas source device and the gas chamber. The controller is used to independently control the opening and closing of the gas path between the gas source device and the fluid inlet, the conduit and the gas chamber.

5. The seat comfort system according to claim 4, characterized in that, The inner wall of the outer tube has a Coanda surface, and the slit is formed between the Coanda surface and the outer wall corresponding to the small end of the inner tube.

6. The seat comfort system according to claim 5, characterized in that, The outer tube includes a constriction section, a throat section, and an extension section connected sequentially along a first direction. The air chamber is formed between the constriction section and the inner tube. The inner wall of the constriction section near the throat section has the Coanda surface.

7. The seat comfort system according to any one of claims 1 to 6, characterized in that, The ventilation assembly includes multiple ventilation pipes, and the sealing sleeve is provided with multiple second ventilation holes. The outer pipes of the multiple ventilation pipes are connected one by one to the multiple second ventilation holes. The controller is used to independently control the opening and closing of the air passage between the air source device and the ducts of the plurality of ventilation pipes.

8. The seat comfort system according to claim 7, characterized in that, At least two of the ventilation ducts have different outer pipe diameters.

9. A type of seat, characterized in that, The system includes a seat comfort system as described in any one of claims 1 to 8, wherein at least one of the seat, backrest, armrest, leg rest, and headrest is provided with the heat exchange bag assembly.

10. The seat according to claim 9, characterized in that, The seat has at least one of its seat, backrest, armrest, leg rest, and headrest with the ventilation pad provided, and the first ventilation hole faces the seating space of the seat.

Images