Fluid distribution device, pneumatic comfort system and seat

Abstract

The embodiment of the invention discloses a fluid distribution device, a pneumatic comfort system and a seat, a plurality of first valve bodies of the fluid distribution device are arranged in a shell, each first valve body is provided with a first inflation port, a first deflation port and a first valve port, the first valve port is used for being connected with a first air bag, and the first valve body has an inflation state and a deflation state which can be switched; the second valve bodies are arranged on the shell, each second valve body is provided with a second air release port, a second air inflation port and a second valve port, the second valve ports are used for being connected with the hardness adjusting device, and the second valve bodies have the air release state, the air inflation state and the pressure maintaining state which can be switched. In the embodiment of the invention, the first valve body can be used for inflating or deflating the air bag to meet the massage function of the air bag, and the second valve body can be used for performing negative pressure deflation / air suction / air suction and positive pressure inflation or pressure maintaining on the hardness adjusting device to meet the hardness adjusting function of the hardness adjusting device, so that differential control on different types of execution parts is realized.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of pneumatic comfort system, in particular to a fluid distribution device, a pneumatic comfort system and a seat. BACKGROUND

[0002] The pneumatic comfort system (for example: pneumatic massage system or pneumatic support system, etc.) generally includes an air pump, an air valve and an air bag in air communication with the air pump through the air valve, and the pneumatic comfort system works by the air pump to supply air to realize the inflation and deflation of the air bag through the control of the air valve, and through the inflation and deflation of the air bag, the massage function or the support function of the air bag is realized.

[0003] At present, the air valve structure in the pneumatic comfort system is single in function, generally only has the inflation or deflation function, and cannot differentially control different types of execution components (for example: massage air bag and soft and hard adjustment device), for example: the massage air bag needs to be inflated or deflated quickly, and the soft and hard adjustment air bag needs to be inflated, deflated or pressure maintained, and the air valve with single structure and function cannot meet the complex control requirements, which limits the multifunctional expansion and intelligent adjustment of the pneumatic comfort system. SUMMARY

[0004] The embodiment of the present application aims to provide a fluid distribution device, a pneumatic comfort system and a seat, which can overcome the above problems or at least partially solve the above problems.

[0005] To solve the above technical problems, one technical scheme adopted by the embodiment of the present application is to provide a fluid distribution device, comprising a shell, a plurality of first valve bodies and a plurality of second valve bodies; the plurality of first valve bodies are arranged in the shell, the first valve body is provided with a first inflation port, a first deflation port and a first valve port, the first valve port is used for connecting a first air bag, wherein the first valve body has switchable inflation state and deflation state, when the first valve port is in communication with the first inflation port, the first valve body is in the inflation state, and when the first valve port is in communication with the first deflation port, the first valve body is in the deflation state; the plurality of second valve bodies are arranged in the shell, the second valve body is provided with a second deflation port, a second inflation port and a second valve port, the second valve port is used for connecting a soft and hard adjustment device, wherein the second valve body has switchable deflation state, inflation state and pressure maintaining state, when the second valve port is in communication with the second deflation port, the second valve body is in the deflation state, when the second valve port is in communication with the second inflation port, the second valve body is in the inflation state, and when the second deflation port and the second inflation port are both closed, the second valve body is in the pressure maintaining state.

[0006] Optionally, the shell is provided with a first gas passage and a second gas passage, the first gas passage is used for being communicated with the gas outlet of the gas source, and the second gas passage is used for being communicated with the gas inlet of the gas source; the first gas inlets of the plurality of first valve bodies are communicated with the first gas passage, and the first gas outlets of the plurality of first valve bodies are communicated with the second gas passage; the second gas outlets of the plurality of second valve bodies are communicated with the second gas passage, and the second gas inlets of the plurality of second valve bodies are communicated with the first gas passage or the external environment.

[0007] Optionally, the fluid distribution device further comprises a plurality of air pressure sensors, an air pressure sensor is arranged at the second valve port of a second valve body, and the air pressure sensor is used for monitoring the air pressure of the soft-hard adjusting device when the second valve body supplies air to the soft-hard adjusting device.

[0008] Optionally, the first valve body comprises a first valve shell, a first valve core and a first electromagnetic component, the first gas inlet, the first gas outlet and the first valve port are located in the first valve shell, the first gas inlet is arranged opposite to the first gas outlet, the first valve port is arranged between the first gas inlet and the first gas outlet, the first valve core is movably arranged in the first valve shell, and the first electromagnetic component is arranged in the first valve shell; the first electromagnetic component is used for driving the first valve core to move in the electrified state; when the first valve core is located at a preset first position, the first valve core closes the first gas outlet, the first valve port is communicated with the first gas inlet, so that the first valve body is in the air charging state; when the first valve core is located at a preset second position, the first valve core closes the first gas inlet, the first valve port is communicated with the first gas outlet, so that the first valve body is in the air discharging state.

[0009] Optionally, the second valve body comprises a second valve shell, a second valve core, a third valve core, a second electromagnetic component and a third electromagnetic component, the second gas outlet, the second gas inlet and the second valve port are located in the second valve shell, the second gas outlet is arranged between the second gas inlet and the second valve port, the second valve core and the third valve core are movably arranged in the second valve shell, the second electromagnetic component and the third electromagnetic component are arranged in the second valve shell, the second electromagnetic component is used for driving the second valve core to move in the electrified state, and the third electromagnetic component is used for driving the third valve core to move in the electrified state; when the second valve core and the third valve core are located at a preset first position, the second valve core closes the second gas inlet, the second valve port is communicated with the second gas outlet, so that the second valve body is in the air discharging state; when the second valve core and the third valve core are located at a preset second position, the third valve core closes the second gas outlet, the second valve port is communicated with the second gas inlet, so that the second valve body is in the air charging state; when the second valve core and the third valve core are located at a preset third position, the second valve core closes the second gas inlet, and the third valve core closes the second gas outlet, so that the second valve body is in the pressure maintaining state.

[0010] Optionally, the second valve body comprises a second valve shell, a second valve core, a third valve core, a first actuator and a second actuator, the second exhaust port, the second inflation port and the second valve port are located in the second valve shell, the second valve port is arranged between the second exhaust port and the second inflation port, the second valve core and the third valve core are movably arranged in the second valve shell, the first actuator and the second actuator are arranged in the second valve shell, the first actuator is connected with the second valve core, and the second actuator is connected with the third valve core; when the second valve core and the third valve core are located at a preset first position, the third valve core closes the second inflation port, the second valve port is in communication with the second exhaust port, so that the second valve body is in the deflation state; when the second valve core and the third valve core are located at a preset second position, the second valve core closes the second exhaust port, the second valve port is in communication with the second inflation port, so that the second valve body is in the inflation state; when the second valve core and the third valve core are located at a preset third position, the second valve core closes the second exhaust port, and the third valve core closes the second inflation port, so that the second valve body is in the pressure maintaining state.

[0011] Optionally, the first actuator comprises a first connecting rod, a first shape memory alloy wire, a first spring and a first circuit board, the first connecting rod, the first shape memory alloy wire, the first spring and the first circuit board are arranged in the second valve shell, one end of the first connecting rod is connected with the second valve core, the other end of the first connecting rod is connected with the first shape memory alloy wire, and the first shape memory alloy wire is electrically connected with the first circuit board; and / or the second actuator comprises a second connecting rod, a second shape memory alloy wire, a second spring and a second circuit board, the second connecting rod, the second shape memory alloy wire, the second spring and the second circuit board are arranged in the second valve shell, one end of the second connecting rod is connected with the third valve core, the other end of the second connecting rod is connected with the second shape memory alloy wire, and the second shape memory alloy wire is electrically connected with the second circuit board.

[0012] To solve the above technical problems, another technical scheme adopted by the embodiment of the present application is to provide a pneumatic comfort system, comprising a first air bag, a soft-hard adjusting device and the above fluid distribution device, the first air bag is communicated with the first valve port of the fluid distribution device, and the soft-hard adjusting device is communicated with the second valve port of the fluid distribution device.

[0013] Optionally, the pneumatic comfort system further comprises a third air bag and a fourth air bag, and the third air bag and the fourth air bag are both communicated with the second valve port of the fluid distribution device.

[0014] To solve the above technical problems, another technical scheme adopted by the embodiment of the present application is to provide a seat comprising the above pneumatic comfort system.

[0015] The beneficial effect of the embodiment of the present application is that: different from the prior art, the embodiment of the present application provides a fluid distribution device, comprising a shell, a plurality of first valve bodies and a plurality of second valve bodies; the plurality of first valve bodies are arranged in the shell, the first valve body is provided with a first inflation port, a first deflation port and a first valve port, the first valve port is used for connecting a first air bag, wherein the first valve body has a switchable inflation state and a deflation state, when the first valve port is in communication with the first inflation port, the first valve body is in the inflation state, and when the first valve port is in communication with the first deflation port, the first valve body is in the deflation state; the plurality of second valve bodies are arranged in the shell, the second valve body is provided with a second deflation port, a second inflation port and a second valve port, the second valve port is used for connecting a soft and hard adjusting device, wherein the second valve body has a switchable deflation state, an inflation state and a pressure maintaining state, when the second valve port is in communication with the second deflation port, the second valve body is in the deflation state, when the second valve port is in communication with the second inflation port, the second valve body is in the inflation state, and when the second deflation port and the second inflation port are both closed, the second valve body is in the pressure maintaining state.

[0016] In the embodiment of the present application, the first valve body can inflate or deflate the air bag, so that the air bag is inflated and deformed or deflated and restored to the original state, to meet the massage function of the air bag, the second valve body can perform negative pressure deflation / air extraction / air suction, positive pressure inflation or pressure maintaining on the soft and hard adjusting device, so that the soft and hard adjusting device is negatively shrunk and deformed, inflated and restored to the original state or the shape remains unchanged, to meet the soft and hard adjusting function of the soft and hard adjusting device, so that the fluid distribution device can differentially control different types of execution components. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the specific embodiments of the present application or the prior art, the drawings needed in the following specific embodiment or prior art description will be briefly introduced. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0018] Figure 1 is the overall structure schematic diagram of the pneumatic comfort system provided by the embodiment of the present application; Figure 2 is the structure schematic diagram of the fluid distribution device of the pneumatic comfort system provided by the embodiment of the present application; Figure 3 is the structure schematic diagram of an embodiment of the first valve body of the fluid distribution device provided by the embodiment of the present application Figure 1 ; Figure 4 is the structure schematic diagram of an embodiment of the first valve body of the fluid distribution device provided by the embodiment of the present application Figure 2 ; Figure 5is a structural schematic diagram of an embodiment of the second valve body of the fluid distribution device provided by the embodiment of the present application Figure 1 ; Figure 6 is a structural schematic diagram of an embodiment of the second valve body of the fluid distribution device provided by the embodiment of the present application Figure 2 ; Figure 7 is a structural schematic diagram of an embodiment of the second valve body of the fluid distribution device provided by the embodiment of the present application Figure 3 ; Figure 8 is a structural schematic diagram of another embodiment of the second valve body of the fluid distribution device provided by the embodiment of the present application Figure 1 ; Figure 9 is a structural schematic diagram of another embodiment of the second valve body of the fluid distribution device provided by the embodiment of the present application Figure 2 ; Figure 10 is a structural schematic diagram of another embodiment of the second valve body of the fluid distribution device provided by the embodiment of the present application Figure 3 ; Figure 11 is a structural schematic diagram of the soft and hard adjustment device of the pneumatic comfort system provided by the embodiment of the present application Figure 1 ; Figure 12 is a structural schematic diagram of the soft and hard adjustment device of the pneumatic comfort system provided by the embodiment of the present application Figure 2 ; Figure 13 is a structural schematic diagram of the soft and hard adjustment device of the pneumatic comfort system provided by the embodiment of the present application Figure 3 ; Figure 14 is a structural schematic diagram of the soft and hard adjustment device of the pneumatic comfort system provided by the embodiment of the present application Figure 4 ; Figure 15 is a structural schematic diagram of the seat provided by the embodiment of the present application.

[0019] Explanation of reference signs: 1 air source, 11 air inlet, 12 air outlet 2 fluid distribution device, 21 housing, 211 first gas passage, 212 second gas passage, 22 first valve body, 221 first gas inlet, 222 first gas outlet, 223 first valve port, 224 first valve housing, 225 first valve core, 226 first electromagnetic component, 23 second valve body, 230 second gas outlet, 231 second gas inlet, 232 second valve port, 233 second valve housing, 234 second valve core, 235 third valve core, 236 second electromagnetic component, 237 third electromagnetic component, 238 first actuator, 2381 first connecting rod, 2382 first shape memory alloy wire, 2383 first spring, 2384 first circuit board, 239 second actuator, 2391 second connecting rod, 2392 second shape memory alloy wire, 2393 second spring, 2394 second circuit board; 3 first air bag; 4 soft and hard adjustment device, 41 first deformable component, 411 first elastic housing, first 4111 receiving cavity, 4112 first opening, 412 first elastic filler, 42 second deformable component, 421 second elastic housing, 4211 second receiving cavity, 4212 second opening, 422 second elastic filler, 43 connecting structure, 431 first magic tape, 432 second magic tape, 44 flat high structure, 441 traction belt, 442 restraint belt ring; 5 third air bag; 6 fourth air bag; 7 high-pressure tank, 8 low-pressure tank; 100 pneumatic comfort system; 200 seat cushion, 201 first area, 202 second area; 300 backrest; 1000 seat. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present application, the present application will be described in more detail below in conjunction with the drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element or one or more intervening elements can be present therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element or one or more intervening elements can be present therebetween. The terms "upper", "lower", "inner", "outer", "vertical", "horizontal" and the like used in the present specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] 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 belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. All publications, patent applications, patents, and other references mentioned herein are incorporated by reference in their entirety.

[0022] Referring to Figure 1 The present application provides an embodiment of a pneumatic comfort system 100, wherein the pneumatic comfort system 100 is at least one of a pneumatic massage system, a pneumatic firmness adjustment system, a pneumatic lumbar support system, and a pneumatic wing support system.

[0023] The pneumatic comfort system 100 comprises a gas source 1, a fluid distribution device 2, a first air bag 3, and a firmness adjustment device 4. The gas source 1 is provided with an air inlet 11 and an air outlet 12; the fluid distribution device 2 comprises a first valve body 22 and a second valve body 23, the first valve body 22 has a switchable inflation state and a switchable deflation state, the second valve body 23 has a switchable deflation state, a switchable inflation state, and a switchable pressure maintaining state, and the second valve body 23 is switchable between the deflation state, the inflation state, and the pressure maintaining state; the first air bag 3 is connected to the first valve body 22; the firmness adjustment device 4 is connected to the second valve body 23, and the firmness adjustment device 4 comprises a deformable assembly, the deformable assembly comprises an elastic shell and an elastic filler, the elastic shell is provided with a receiving cavity and an opening, the elastic filler is filled in the receiving cavity, and the opening is connected to the second valve body 23. When the first valve body 22 is in the inflation state, the first air bag 3 is connected to the air outlet 12 of the gas source 1 through the first valve body 22, so that the first air bag 3 is inflated and deformed under the action of positive pressure; when the first valve body 22 is in the deflation state, the first air bag 3 is connected to the air inlet 11 of the gas source 1 through the first valve body 22, so that the first air bag 3 restores deformation under the action of negative pressure. When the second valve body 23 is in the deflation state, the firmness adjustment device 4 is connected to the air inlet 11 of the gas source 1 through the second valve body 23, so that the firmness adjustment device 4 shrinks and deforms under the action of negative pressure, and the hardness of the firmness adjustment device 4 increases; when the second valve body 23 is in the inflation state, the firmness adjustment device 4 is connected to the air inlet 11 of the gas source 1 or the external environment through the second valve body 23, so that the firmness adjustment device 4 restores deformation under the action of normal pressure or positive pressure, and the hardness of the firmness adjustment device 4 decreases; when the second valve body 23 is in the pressure maintaining state, the firmness adjustment device 4 enters the pressure maintaining mode, and the hardness of the firmness adjustment device 4 remains unchanged.

[0024] In the above manner, when the hardness of the firmness adjustment device 4 increases, the firmness adjustment device 4 can shrink and deform under the action of negative pressure to adapt to the human body curve and improve the comfort of use.

[0025] It can be understood that the deformation adapting to the human body curve here refers to that after the human body is supported, the human body first exerts a pre-compression deformation on the soft and hard adjusting device 4 to make the soft and hard adjusting device 4 deform to adapt to the human body curve, and then the soft and hard adjusting device 4 is deformed under the action of negative pressure to increase the hardness, so that the deformed shape of the soft and hard adjusting device 4 is shaped and fits the human body curve. It can also be understood that when the soft and hard adjusting device 4 is shaped, even if the human body separates from the soft and hard adjusting device, that is, the human body cancels the pre-compression on the soft and hard adjusting device 4, the shaping of the soft and hard adjusting device remains unchanged, and when the human body sits again, it still fits the human body curve.

[0026] It should be noted that the hardness of the soft and hard adjusting device 4 remains unchanged refers to that the hardness of the soft and hard adjusting device 4 remains unchanged when the soft and hard adjusting device 4 is not loaded with any object or is not compressed by any object.

[0027] It should be further noted that the gas source includes but is not limited to a gas pump, a gas tank, an air compressor, and the like.

[0028] In some embodiments, the first air bag 3 is used as a massage air bag, and the soft and hard adjusting device 4 is used as a seat cushion 200 supporting air bag or a hip supporting air bag.

[0029] In some embodiments, the elastic filler is made of foaming material. In the above manner, the deformable assembly can have good elasticity and basic support height.

[0030] In some embodiments, along the length direction, the width direction or the height direction of the elastic shell, the cross-sectional shape of the accommodation cavity is the same as that of the elastic filler, and the cross-sectional area of the accommodation cavity is equal to that of the elastic filler. In the above manner, the elastic filler can be distributed in the accommodation cavity, and the probability of deviation of the elastic filler during elastic deformation can be reduced.

[0031] For the above-mentioned pneumatic comfort system 100, in some embodiments, the pneumatic comfort system 100 further comprises a second air bag (not shown in the figure), the second air bag is communicated with the second valve body 23, and the second air bag is used as a waist supporting air bag; when the second valve body 23 is in the deflation state, the second air bag is communicated with the air inlet 11 of the gas source 1 through the second valve body 23, so that the second air bag is deformed under the action of negative pressure, adapts to the human body curve, and the hardness of the second air bag increases; when the second valve body 23 is in the inflation state, the second air bag is communicated with the external environment or the air inlet 11 of the gas source 1 through the second valve body 23, so that the second air bag recovers deformation under the action of normal pressure or positive pressure, and the hardness of the second air bag decreases; when the second valve body 23 is in the pressure maintaining state, the second air bag enters the pressure maintaining mode, and the hardness of the second air bag remains unchanged.

[0032] For the pneumatic comfort system 100, in some embodiments, the pneumatic comfort system 100 further comprises a third air bag (not shown in the figure), the third air bag is communicated with the second valve body 23, and the third air bag is used as a side wing supporting air bag; when the second valve body 23 is in the deflation state, the third air bag is communicated with the air inlet 11 of the gas source 1 through the second valve body 23, so that the third air bag is deformed under the action of negative pressure, adapts to the human body curve and is deformed, and the hardness of the third air bag increases; when the second valve body 23 is in the inflation state, the third air bag is communicated with the external environment or the air inlet 11 of the gas source 1 through the second valve body 23, so that the third air bag restores deformation under the action of normal pressure or positive pressure, and the hardness of the third air bag decreases; when the second valve body 23 is in the pressure maintaining state, the third air bag enters the pressure maintaining mode, and the hardness of the third air bag remains unchanged.

[0033] It should be noted that, in some embodiments, the second air bag is used as a waist supporting air bag, and the third air bag is used as a side wing supporting air bag.

[0034] When the second air bag and the third air bag are both communicated with the second valve body 23, the synchronous gas supply to the soft and hard adjusting device 4, the second air bag and the third air bag can be realized through the second valve body 23, the addition of a new valve body is avoided, which helps to simplify the overall structure of the pneumatic comfort system 100 and reduce the overall volume of the pneumatic comfort system 100.

[0035] For the pneumatic comfort system 100, in some embodiments, please refer to Figure 1 , the pneumatic comfort system 100 further comprises a high-pressure tank 5 and a low-pressure tank 6, one end of the high-pressure tank 5 is communicated with the air outlet 12 of the gas source 1, the other end of the high-pressure tank 5 is respectively communicated with the first valve body 22 and the second valve body 23, one end of the low-pressure tank 6 is communicated with the air inlet 11 of the gas source 1, and the other end of the low-pressure tank 6 is respectively communicated with the first valve body 22 and the second valve body 23. In this way, the burden of the gas source 1 can be reduced, the response speed of gas adjustment can be improved, and the influence speed of gas adjustment caused by the lag of the gas source 1 can be avoided.

[0036] For the pneumatic comfort system 100, in some embodiments, please refer to Figure 1 , the fluid distribution device 2 further comprises a gas pressure sensor, the gas pressure sensor is arranged on the second valve body 23, and the gas pressure sensor is used to monitor the gas pressure inside the soft and hard adjusting device 4 when the soft and hard adjusting device 4 restores deformation under the action of positive pressure through the second valve body 23. In this way, when the second valve body 23 is communicated with the high-pressure tank 5, the gas flow speed is accelerated due to high pressure, so that the gas pressure inside the soft and hard adjusting device 4 can be monitored in real time through the gas pressure sensor, and the safety hazard caused by overcharging of the soft and hard adjusting device 4 can be avoided.

[0037] For the fluid distribution device 2, in some embodiments, please refer to Figure 2The fluid distribution device 2 comprises a housing 21, a plurality of first valve bodies 22 and a plurality of second valve bodies 23. The plurality of first valve bodies 22 are arranged in the housing 21. The first valve body 22 is provided with a first inflation port 221, a first deflation port 222 and a first valve port 223 for connecting the first air bag 3. The first valve body 22 has an inflation state and a deflation state which can be switched. When the first valve port 223 is in communication with the first inflation port 221, the first valve body 22 is in the inflation state. When the first valve port 223 is in communication with the first deflation port 222, the first valve body 22 is in the deflation state. The plurality of second valve bodies 23 are arranged in the housing 21. The second valve body 23 is provided with a second deflation port 230, a second inflation port 231 and a second valve port 232 for connecting the soft-hard adjusting device 4. The second valve body 23 has a deflation state, an inflation state and a pressure maintaining state which can be switched. When the second valve port 232 is in communication with the second deflation port 230, the second valve body 23 is in the deflation state. When the second valve port 232 is in communication with the second inflation port 231, the second valve body 23 is in the inflation state. When the second deflation port 230 and the second inflation port 231 are both closed, the second valve body 23 is in the pressure maintaining state.

[0038] In this way, the first valve body 22 can inflate or deflate the air bag, so that the air bag is inflated and deformed or deflated and restored to its original shape, thereby meeting the massage function of the air bag. The second valve body 23 can perform negative pressure deflation / air suction / air suction, positive pressure inflation or pressure maintaining on the soft-hard adjusting device 4, so that the soft-hard adjusting device 4 is negatively deformed, inflated to its original shape or the shape remains unchanged, thereby meeting the soft-hard adjusting function of the soft-hard adjusting device 4. Therefore, the fluid distribution device 2 can differentially control different types of execution components.

[0039] Further, in some embodiments, the second air bag and the third air bag are in communication with the second valve port 232 of the second valve body 23.

[0040] For the above fluid distribution device 2, in some embodiments, referring to Figure 2 The housing 21 is provided with a first gas passage 211 and a second gas passage 212. The first gas passage 211 is used to communicate with the gas outlet 12 of the gas source 1, and the second gas passage 212 is used to communicate with the gas inlet 11 of the gas source 1. The first inflation port 221 of the plurality of first valve bodies 22 is in communication with the first gas passage 211, and the first deflation port 222 of the plurality of first valve bodies 22 is in communication with the second gas passage 212. The second deflation port 230 of the plurality of second valve bodies 23 is in communication with the second gas passage 212, and the second inflation port 231 of the plurality of second valve bodies 23 is in communication with the first gas passage 211 or the external environment.

[0041] When the second gas inlets 231 of the plurality of second valve bodies 23 are all communicated with the first gas passage 211, the second valve ports 232 of the plurality of second valve bodies 23 can be supplied with positive pressure to quickly restore the soft and hard adjusting device 4 from the collapsed deformed state to the original state; when the second gas inlets 231 of the plurality of second valve bodies 23 are all communicated with the external environment, the second valve ports 232 of the plurality of second valve bodies 23 can be supplied with normal pressure to restore the soft and hard adjusting device 4 from the collapsed deformed state to the original state.

[0042] For the fluid distribution device 2 described above, in some embodiments, the number of air pressure sensors is multiple, and the multiple air pressure sensors are one-to-one corresponding to the plurality of second valve bodies 23, that is, an air pressure sensor is arranged at the second valve port 232 of a second valve body 23, and an air pressure sensor is used to monitor the air pressure of the soft and hard adjusting device 4 when a second valve body 23 supplies air to the soft and hard adjusting device 4.

[0043] For the fluid distribution device 2 described above, in some embodiments, please refer to Figure 3 and Figure 4 The first valve body 22 includes a first valve shell 224, a first valve core 225, and a first electromagnetic member 226. The first gas inlet 221, the first gas outlet 222, and the first valve port 223 are all located in the first valve shell 224. The first gas inlet 221 is arranged opposite to the first gas outlet 222, and the first valve port 223 is arranged between the first gas inlet 221 and the first gas outlet 222. The first valve core 225 is movably arranged in the first valve shell 224, and the first electromagnetic member 226 is arranged in the first valve shell 224. The first electromagnetic member 226 is used to drive the first valve core 225 to move in the energized state. When the first valve core 225 is located at a preset first position, the first valve core 225 closes the first gas outlet 222, and the first valve port 223 is communicated with the first gas inlet 221, so that the first valve body 22 is in the gas charging state. When the first valve core 225 is located at a preset second position, the first valve core 225 closes the first gas inlet 221, and the first valve port 223 is communicated with the first gas outlet 222, so that the first valve body 22 is in the gas discharging state. In the above manner, the first valve body 22 constitutes an electromagnetic valve.

[0044] For the fluid distribution device 2 described above, in some embodiments, please refer to Figures 5 to 7The second valve body 23 comprises a second valve shell 233, a second valve core 234, a third valve core 235, a second electromagnetic element 236 and a third electromagnetic element 237. The second exhaust port 230, the second inflation port 231 and the second valve port 232 are all located in the second valve shell 233. The second exhaust port 230 is arranged between the second inflation port 231 and the second valve port 232. The second valve core 234 and the third valve core 235 are both movably arranged in the second valve shell 233. The second electromagnetic element 236 and the third electromagnetic element 237 are both arranged in the second valve shell 233. The second electromagnetic element 236 is used to drive the second valve core 234 to move in the energized state. The third electromagnetic element 237 is used to drive the third valve core 235 to move in the energized state. When the second valve core 234 and the third valve core 235 are located at a preset first position, the second valve core 234 closes the second inflation port 231, and the second valve port 232 is in communication with the second exhaust port 230, so that the second valve body 23 is in the exhaust state. When the second valve core 234 and the third valve core 235 are located at a preset second position, the third valve core 235 closes the second exhaust port 230, and the second valve port 232 is in communication with the second inflation port 231, so that the second valve body 23 is in the inflation state. When the second valve core 234 and the third valve core 235 are located at a preset third position, the second valve core 234 closes the second inflation port 231, and the third valve core 235 closes the second exhaust port 230, so that the second valve body 23 is in the pressure maintaining state. In the above manner, the second valve body 23 constitutes a solenoid valve.

[0045] For the fluid distribution device 2 described above, in some embodiments, referring to Figures 8 to 10The second valve body 23 comprises a second valve shell 233, a second valve core 234, a third valve core 235, a first actuator 238 and a second actuator 239. The second discharge port 230, the second inflation port 231 and the second valve port 232 are located in the second valve shell 233. The second valve port 232 is arranged between the second discharge port 230 and the second inflation port 231. The second valve core 234 and the third valve core 235 are movably arranged in the second valve shell 233. The first actuator 238 and the second actuator 239 are arranged in the second valve shell 233. The first actuator 238 is connected with the second valve core 234, and the second actuator 239 is connected with the third valve core 235. When the second valve core 234 and the third valve core 235 are located at a preset first position, the third valve core 235 closes the second inflation port 231, the second valve port 232 is in communication with the second discharge port 230, so that the second valve body 23 is in a deflation state. When the second valve core 234 and the third valve core 235 are located at a preset second position, the second valve core 234 closes the second discharge port 230, the second valve port 232 is in communication with the second inflation port 231, so that the second valve body 23 is in an inflation state. When the second valve core 234 and the third valve core 235 are located at a preset third position, the second valve core 234 closes the second discharge port 230, and the third valve core 235 closes the second inflation port 231, so that the second valve body 23 is in a pressure maintaining state. In the foregoing manner, the second valve body 23 constitutes an SMA valve.

[0046] Further, in some embodiments, referring to Figures 8 to 10 The first actuator 238 comprises a first connecting rod 2381, a first shape memory alloy wire 2382, a first spring 2383 and a first circuit board 2384. The first connecting rod 2381, the first shape memory alloy wire 2382, the first spring 2383 and the first circuit board 2384 are arranged in the second valve shell 233. One end of the first connecting rod 2381 is connected with the second valve core 234, and the other end of the first connecting rod 2381 is connected with the first shape memory alloy wire 2382. The first shape memory alloy wire 2382 is electrically connected with the first circuit board 2384. And / or, in some embodiments, the second actuator 239 comprises a second connecting rod 2391, a second shape memory alloy wire 2392, a second spring 2393 and a second circuit board 2394. The second connecting rod 2391, the second shape memory alloy wire 2392, the second spring 2393 and the second circuit board 2394 are arranged in the second valve shell 233. One end of the second connecting rod 2391 is connected with the third valve core 235, and the other end of the second connecting rod 2391 is connected with the second shape memory alloy wire 2392. The second shape memory alloy wire 2392 is electrically connected with the second circuit board 2394. In the foregoing manner, the shape memory alloy wire realizes electric heating deformation in the electrified state, and drives the connecting rod to control the movement of the valve core.

[0047] For the soft and hard adjustment device 4 described above, in some embodiments, referring toFigures 11 to 13 The number of deformable assemblies is two, which are a first deformable assembly 41 and a second deformable assembly 42, the first deformable assembly 41 comprises a first elastic shell 411 and a first elastic filler 412, the first elastic shell 411 is provided with a first accommodating cavity 4111 and a first opening 4112 which are in communication with each other, the first elastic filler 412 is filled in the first accommodating cavity 4111, the first deformable assembly 41 is stacked on the second deformable assembly 42, the second deformable assembly 42 comprises a second elastic shell 421 and a second elastic filler 422, the second elastic shell 421 is provided with a second accommodating cavity 4211 and a second opening 4212 which are in communication with each other, the second elastic filler 422 is filled in the second accommodating cavity 4211; wherein, when the first elastic shell 411 is exhausted through the first opening 4112, and the second elastic shell 421 is inflated through the second opening 4212, the first elastic shell 411 is deformed by contraction, the first elastic filler 412 is compressed and deformed to adapt to the human body curve, the height of the first deformable assembly 41 is reduced, the hardness of the first deformable assembly 41 is increased, the second elastic shell 421 is deformed by expansion, the second elastic filler 422 is expanded, and the height of the second deformable assembly 42 is increased; when the first elastic shell 411 is inflated through the first opening 4112, and the second elastic shell 421 is exhausted through the second opening 4212, the first elastic shell 411 is deformed by expansion, the first elastic filler 412 is expanded, the height of the first deformable assembly 41 is increased, the hardness of the first deformable assembly 41 is reduced, the second elastic shell 421 is deformed by contraction, the second elastic filler 422 is compressed, and the height of the second deformable assembly 42 is reduced.

[0048] In the foregoing manner, when the first deformable assembly 41 is deformed by contraction due to the hardness adjustment, the second deformable assembly 42 can be adjusted in height to make the overall height of the first deformable assembly 41 and the second deformable assembly 42 change little or remain unchanged, that is, the height of the soft-hardness adjusting device 4 changes little or remains unchanged when the soft-hardness is adjusted, thereby reducing the probability of causing the user's posture to change and improving the use comfort.

[0049] It should be noted that the first deformable assembly 41 is used to directly bear the human body, and the second deformable assembly 42 is used to support the first deformable assembly 41, that is, the second deformable assembly 42 is used to indirectly bear the human body.

[0050] It also needs to be explained that, in the process of adjusting the softness and hardness of the soft and hard adjusting device 4, when the hardness of the first deformable assembly 41 increases and causes the height thereof to decrease, the height of the second deformable assembly 42 can be increased to form height compensation, so that the overall height of the soft and hard adjusting device 4 changes little or remains unchanged when the user feels that the hardness of the soft and hard adjusting device 4 becomes harder; on the contrary, when the hardness of the first deformable assembly 41 decreases and causes the height thereof to increase, the height of the second deformable assembly 42 can be decreased to form height balance, so that the overall height of the soft and hard adjusting device 4 also changes little or remains unchanged when the user feels that the hardness of the soft and hard adjusting device 4 becomes softer.

[0051] For the above-mentioned soft and hard adjusting device 4, in some embodiments, referring to Figure 14 , the first filler is made of foaming material; and / or, the second filler is made of foaming material. In the above-mentioned manner, the first deformable assembly 41 and / or the second deformable assembly 42 can have good elasticity and basic support height.

[0052] For the above-mentioned soft and hard adjusting device 4, in some embodiments, referring to Figures 11 to 13 , the soft and hard adjusting device 4 further comprises a connecting structure 43, which is arranged between the first elastic shell 411 and the second elastic shell 421, and fixes the first elastic shell 411 and the second elastic shell 421 to each other. Through the above-mentioned connecting structure 43, the connection stability of the first elastic shell 411 and the second elastic shell 421 can be improved, the relative displacement between the first elastic shell 411 and the second elastic shell 421 can be reduced, and the mutual misalignment of the first elastic shell 411 and the second elastic shell 421 during deformation can be reduced.

[0053] The connecting structure 43 can be a buckle structure, a glue structure, a suture structure, a lacing structure, a hot-pressing structure or a magic tape structure.

[0054] For example, in some embodiments, when the connecting structure 43 is a buckle structure, it comprises a first buckle and a second buckle, the first buckle is fixed to the surface of the first elastic shell 411 facing the second elastic shell 421 by means of glue, hot melting or suture, the second buckle is fixed to the surface of the second elastic shell 421 facing the first elastic shell 411 by means of glue, hot melting or suture, and the first buckle and the second buckle are buckled to fix the first elastic shell 411 and the second elastic shell 421 to each other, which can improve the connection stability of the first elastic shell 411 and the second elastic shell 421, and facilitate the disassembly of the first elastic shell 411 and the second elastic shell 421.

[0055] Alternatively, in some other embodiments, when the connecting structure 43 is a magic tape structure, including a first magic tape 431 and a second magic tape 432, the first magic tape 431 is fixed to the surface of the first elastic shell 411 facing the second elastic shell 421 by means of adhesive, hot melt or suture, the second magic tape 432 is fixed to the surface of the second elastic shell 421 facing the first elastic shell 411 by means of adhesive, hot melt or suture, and the first magic tape 431 and the second magic tape 432 are pasted to fix the first elastic shell 411 and the second elastic shell 421 to each other, which can improve the connection stability of the first elastic shell 411 and the second elastic shell 421 while facilitating the disassembly of the first elastic shell 411 and the second elastic shell 421.

[0056] For the soft and hard adjusting device 4 described above, in some embodiments, referring to Figures 11 to 13 , in the direction of stacking the first deformable assembly 41 on the second deformable assembly 42, the second elastic shell 421 has oppositely arranged top and bottom portions, and the top portion is attached to the first deformable assembly 41; the second deformable assembly 42 further includes a flat and high structure 44 arranged on the second elastic shell 421, and the flat and high structure 44 is used to constrain the top portion when the height of the second deformable assembly 42 rises or falls, so as to keep the top portion flat. In this way, the flatness of the second deformable assembly 42 is improved when the height of the second deformable assembly 42 rises, and local bulging or local collapse of the second deformable assembly 42 is reduced.

[0057] Further, in some embodiments, referring to Figures 11 to 13 , the flat and high structure 44 includes a plurality of traction belts 441, both ends of the plurality of traction belts 441 are connected to the top portion and the bottom portion respectively, and the plurality of traction belts 441 are arranged at intervals in the direction perpendicular to the stacking direction of the first deformable assembly 41 on the second deformable assembly 42. For example, in some embodiments, the plurality of traction belts 441 are located inside the first elastic shell 411, and both ends of the plurality of traction belts 441 are connected to the inner surface of the top portion and the inner surface of the bottom portion respectively. Alternatively, in some other embodiments, the plurality of traction belts 441 are located outside the first elastic shell 411, and both ends of the plurality of traction belts 441 are connected to the outer surface of the top portion and the outer surface of the bottom portion respectively. It can be understood that the traction belt 441 is a plastic belt, a nylon belt, a woven belt or a non-woven fabric belt, etc.

[0058] Further, in some embodiments, referring to Figures 11 to 13 , the flat and high structure 44 includes a plurality of constraint belt rings 442, and the plurality of constraint belt rings 442 are sleeved on the second elastic shell 421 and arranged at intervals in the direction perpendicular to the stacking direction of the first deformable assembly 41 on the second deformable assembly 42. It can be understood that the constraint belt is a plastic belt, a nylon belt, a woven belt or a non-woven fabric belt, etc.

[0059] It should be noted that the flat and high structure 44 can have a plurality of traction belts 441 or a plurality of restraint belts, or can have both a plurality of traction belts 441 and a plurality of restraint belts.

[0060] For the soft and hard adjusting device 4, in some embodiments, along a first direction, the cross-sectional shape of the first accommodating cavity 4111 is the same as that of the first elastic filler 412, and the cross-sectional area of the first accommodating cavity 4111 is equal to that of the first elastic filler 412, and the first direction is the length direction, the width direction or the height direction of the first elastic shell 411; and / or, along a second direction, the cross-sectional shape of the second accommodating cavity 4211 is the same as that of the second elastic filler 422, and the cross-sectional area of the second accommodating cavity 4211 is equal to that of the second elastic filler 422, and the second direction is the length direction, the width direction or the height direction of the second elastic shell 421. In this way, the first accommodating cavity 4111 and the first elastic filler 412 can have the same shape and size, i.e., the first elastic filler 412 fills the first accommodating cavity 4111; and / or, the second accommodating cavity 4211 and the second elastic filler 422 can have the same shape and size, i.e., the second elastic filler 422 fills the second accommodating cavity 4211.

[0061] For the soft and hard adjusting device 4, in some embodiments, along a third direction, the cross-sectional shape of the first elastic shell 411 is the same as that of the second elastic shell 421, and the cross-sectional area of the first elastic shell 411 is equal to that of the second elastic shell 421, and the third direction is the length direction, the width direction or the height direction of the first elastic shell 411 or the second elastic shell 421. In this way, the first elastic shell 411 and the second elastic shell 421 can have the same shape and size.

[0062] Please refer to Figure 15 The application further provides an embodiment of a seat 1000, which comprises the above-mentioned pneumatic comfort system 100. For the specific structure and functions of the pneumatic comfort system 100, please refer to the above-mentioned embodiments, which will not be repeated here.

[0063] For the seat 1000, in some embodiments, the seat 1000 comprises a seat cushion 200, a backrest 300 and the above-mentioned pneumatic comfort system 100. The seat cushion 200 is rotationally connected with the backrest 300. Along the width direction of the seat cushion 200, the seat cushion 200 is provided with a first area and a second area. The number of the soft and hard adjusting devices 4 of the pneumatic comfort system 100 is two. One soft and hard adjusting device 4 is embedded in the first area, and the other soft and hard adjusting device 4 is embedded in the second area. The two soft and hard adjusting devices 4 are used to align the two sides of the human hips when the human body sits on the seat cushion 200.

[0064] The application also provides an embodiment of a vehicle, which comprises the seat 1000 described above, and the specific structure and functions of the seat 1000 can be referred to the above embodiment, which will not be repeated here.

[0065] The above is only an embodiment of the application, and does not limit the patent scope of the application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made by using the content of the specification and drawings of the application, is also included in the patent protection scope of the application.

Claims

1. A fluid distribution device, characterized in that, include: case; Multiple first valve bodies are disposed in the housing. Each first valve body is provided with a first inflation port, a first deflation port, and a first valve port. The first valve port is used to connect to a first air bag. The first valve body has a switchable inflation state and deflation state. When the first valve port is connected to the first inflation port, the first valve body is in an inflation state. When the first valve port is connected to the first deflation port, the first valve body is in a deflation state. Multiple second valve bodies are disposed in the housing. Each second valve body is provided with a second vent port, a second inflation port, and a second valve port. The second valve port is used to connect to a soft / hard adjustment device. The second valve body has switchable venting, inflation, and pressure holding states. When the second valve port is connected to the second vent port, the second valve body is in the venting state. When the second valve port is connected to the second inflation port, the second valve body is in the inflation state. When both the second vent port and the second inflation port are closed, the second valve body is in the pressure holding state.

2. The fluid distribution device according to claim 1, characterized in that, The housing is provided with a first gas passage and a second gas passage. The first gas passage is used to communicate with the outlet of the gas source, and the second gas passage is used to communicate with the inlet of the gas source. The first air inlets of the plurality of first valve bodies are all connected to the first gas passage, and the first air outlets of the plurality of first valve bodies are all connected to the second gas passage; The second vent ports of the plurality of second valve bodies are all connected to the second gas passage, and the second inlet ports of the plurality of second valve bodies are all connected to the first gas passage or the external environment.

3. The fluid distribution device according to claim 1, characterized in that, The fluid distribution device further includes multiple pressure sensors, one of which is disposed at the second valve port of the second valve body, and is used to monitor the pressure of the soft and hard adjustment device when the second valve body supplies air to the soft and hard adjustment device.

4. The fluid distribution device according to claim 1, characterized in that, The first valve body includes a first valve shell, a first valve core, and a first electromagnetic component. The first inflation port, the first deflation port, and the first valve port are all located in the first valve shell. The first inflation port and the first deflation port are arranged opposite to each other. The first valve port is arranged between the first inflation port and the first deflation port. The first valve core is movably disposed in the first valve shell. The first electromagnetic component is disposed in the first valve shell. The first electromagnetic component is used to drive the first valve core to move when energized. When the first valve core is in the preset first position, the first valve core closes the first vent port, and the first valve port is connected to the first inflation port so that the first valve body is in an inflation state. When the first valve core is in the preset second position, the first valve core closes the first air inlet, and the first valve port is connected to the first air outlet, so that the first valve body is in a deflated state.

5. The fluid distribution device according to claim 1, characterized in that, The second valve body includes a second valve shell, a second valve core, a third valve core, a second electromagnetic component, and a third electromagnetic component. The second vent, the second inflation port, and the second valve port are all located in the second valve shell. The second vent is disposed between the second inflation port and the second valve port. The second valve core and the third valve core are both movably disposed within the second valve shell. The second electromagnetic component and the third electromagnetic component are both disposed in the second valve shell. The second electromagnetic component is used to drive the second valve core to move when energized, and the third electromagnetic component is used to drive the third valve core to move when energized. When the second valve core and the third valve core are in the preset first position, the second valve core closes the second air inlet, and the second valve port is connected to the second air outlet, so that the second valve body is in the air-deflated state. When the second valve core and the third valve core are in the preset second position, the third valve core closes the second vent port, and the second valve port is connected to the second inflation port, so that the second valve body is in an inflation state; When the second valve core and the third valve core are in the preset third position, the second valve core closes the second air inlet, and the third valve core closes the second air outlet, so that the second valve body is in a pressure-holding state.

6. The fluid distribution device according to claim 1, characterized in that, The second valve body includes a second valve housing, a second valve core, a third valve core, a first actuator, and a second actuator. The second vent port, the second inlet port, and the second valve port are all located in the second valve housing. The second valve port is disposed between the second vent port and the second inlet port. The second valve core and the third valve core are both movably disposed within the second valve housing. The first actuator and the second actuator are both disposed within the second valve housing. The first actuator is connected to the second valve core, and the second actuator is connected to the third valve core. When the second valve core and the third valve core are in the preset first position, the third valve core closes the second air inlet, and the second valve port is connected to the second air outlet, so that the second valve body is in the air-deflated state; When the second valve core and the third valve core are in the preset second position, the second valve core closes the second vent port, and the second valve port is connected to the second inflation port, so that the second valve body is in an inflation state. When the second valve core and the third valve core are in the preset third position, the second valve core closes the second vent port, and the third valve core closes the second inflation port, so that the second valve body is in a pressure-holding state.

7. The fluid distribution device according to claim 6, characterized in that, The first actuator includes a first connecting rod, a first shape memory alloy wire, a first spring, and a first circuit board. The first connecting rod, the first shape memory alloy wire, the first spring, and the first circuit board are all disposed within the second valve housing. One end of the first connecting rod is connected to the second valve core, and the other end of the first connecting rod is connected to the first shape memory alloy wire. The first shape memory alloy wire is electrically connected to the first circuit board; and / or, The second actuator includes a second connecting rod, a second shape memory alloy wire, a second spring, and a second circuit board. The second connecting rod, the second shape memory alloy wire, the second spring, and the second circuit board are all disposed inside the second valve housing. One end of the second connecting rod is connected to the third valve core, and the other end of the second connecting rod is connected to the second shape memory alloy wire. The second shape memory alloy wire is electrically connected to the second circuit board.

8. A pneumatic comfort system, characterized in that, It includes a first air bag, a stiffness adjustment device, and a fluid distribution device as described in any one of claims 1-7, wherein the first air bag is connected to a first valve port of the fluid distribution device, and the stiffness adjustment device is connected to a second valve port of the fluid distribution device.

9. The pneumatic comfort system according to claim 8, characterized in that, The pneumatic comfort system also includes a third air bag and a fourth air bag, both of which are connected to the second valve port of the fluid distribution device.

10. A type of seat, characterized in that, Includes the pneumatic comfort system as described in claim 9.

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