Automobile seat ventilation function and waist supporting function enhancing system, control method and automobile seat

Abstract

The invention provides an automobile seat ventilation function and waist supporting function enhancing system, a control method and an automobile seat, the enhancing system is arranged on a seat framework of the automobile seat and comprises a seat foam, a plurality of first ventilation holes are formed in the seat foam, and a flow guide assembly is arranged on the seat foam; a second ventilation hole corresponding to the first ventilation hole is formed in the flow guide assembly; a connecting hole is further formed in the flow guide assembly, a fan body is arranged at the connecting hole, and a first flow guide layer is arranged in the flow guide assembly; in the first state, a second flow guide layer is formed between the second ventilation hole and the first flow guide layer; in the second state, the second flow guide layer disappears; by arranging the flow guide assembly with two states, a second flow guide layer is formed in the flow guide assembly in the first state, gas fully flows in the two flow guide layers, the gas pressure is secondarily balanced, and the gas flow and pressure in each ventilation hole are relatively balanced; meanwhile, the part, corresponding to the second flow guide layer, of the seat foam can form a bulge, so that a higher waist supporting height can be realized.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts, and in particular to a system and a control method for enhancing the ventilation and lumbar support functions of automobile seats, and an automobile seat. Background Art

[0002] With the progress of the times and social development, more and more functions need to be reflected in seats, and the functional products that need to be arranged are becoming more and more abundant. Nowadays, most car seats have ventilation functions and lumbar support functions. With the advancement of technology, passengers have higher and higher requirements for the overall performance of ventilation and support functions. However, the ventilation volume of the existing ventilation system and the support height of the lumbar support system have certain limitations. How to balance the overall performance improvement of the ventilation system and the lumbar support system is a problem that needs to be solved urgently. Summary of the Invention

[0003] The purpose of this application is to address the above problems and provide a system, control method and car seat for enhancing the ventilation function and lumbar support function of a car seat.

[0004] In a first aspect, the present application provides a system for enhancing ventilation and lumbar support functions of a vehicle seat, which is arranged on a seat frame of a vehicle seat, comprising: Seat foam, the seat foam covering the seat frame, the seat foam having a plurality of first ventilation holes; A guide assembly is provided on the seat foam, wherein a plurality of second ventilation holes are provided on a side of the guide assembly close to the seat foam, the second ventilation holes corresponding one-to-one with and communicating with the first ventilation holes; a connection hole is provided on a side of the guide assembly away from the seat foam, a fan body is provided at the connection hole, and a first guide layer is provided between the plurality of second ventilation holes and the connection hole; The guide component has a first state and a second state. When in the first state, a second guide layer is formed between the plurality of second ventilation holes and the first guide layer, and the fan body drives the gas to flow between the first ventilation holes, the second ventilation holes, the second guide layer and the first guide layer; when in the second state, the second guide layer disappears, and the fan body drives the gas to flow between the first ventilation holes, the second ventilation holes and the first guide layer.

[0005] According to the technical solutions provided in certain embodiments of the present application, the flow guide assembly includes: a first sealing layer, the first sealing layer being provided on the seat foam, and the first sealing layer being provided with a plurality of the second ventilation holes; a second sealing layer, the second sealing layer being provided on a side of the first sealing layer away from the seat foam, the edge of the second sealing layer being sealedly connected to the edge of the first sealing layer; A pressure-bearing air guide member, the pressure-bearing air guide member is filled between the first sealing layer and the second sealing layer to form the first guide layer; A support structure is provided between the first sealing layer and the pressure-bearing wind guide member, and the reinforced air bag is used to switch the guide assembly between the first state and the second state.

[0006] According to the technical solutions provided in some embodiments of the present application, the support structure is a reinforced air bag, and the reinforced air bag has a third state and a fourth state. When in the third state, the enhanced air bag is inflated and the flow guide component is switched to the first state; When in the fourth state, the reinforced air bag is deflated and shrunk, and the guide assembly switches to the second state.

[0007] According to the technical solutions provided in certain embodiments of the present application, the projections of the plurality of second ventilation holes and the support structure along the first direction are independent of each other.

[0008] According to the technical solution provided in some embodiments of the present application, it also includes a lumbar support component, which is arranged on the side of the seat foam away from the human body, and the lumbar support component is used to support the human body.

[0009] According to the technical solutions provided in certain embodiments of the present application, the waist support assembly includes: A seat net spring, the seat net spring being arranged on the seat frame; A lumbar support air bag is provided on a side of the seat net spring close to the guide assembly; The waist support air bag has a fifth state and a sixth state. When in the fifth state, the lumbar support airbag is inflated, and a first bulge is formed on the seat foam toward the side close to the human body; when in the sixth state, the lumbar support airbag is deflated and contracted, and the first bulge disappears.

[0010] According to the technical solutions provided in certain embodiments of the present application, the waist support airbag and the reinforcement airbag are provided correspondingly.

[0011] According to the technical solution provided in certain embodiments of the present application, a mounting groove is provided on the side of the seat foam away from the human body, the mounting groove is connected to the plurality of first ventilation holes, and the guide assembly is provided in the mounting groove.

[0012] In a second aspect, the present application provides a method for controlling the ventilation function and lumbar support function of a vehicle seat, which is implemented based on the above-mentioned vehicle seat ventilation function and lumbar support function enhancement system, and includes: Receive mode control instructions; If it is a normal ventilation mode control instruction, the fan body is controlled to start, and the fan body drives the gas to flow between the first ventilation hole, the second ventilation hole and the first guide layer; If the enhanced ventilation mode control instruction is provided, the enhanced air bag is controlled to inflate, the fan body is started, the second guide layer is formed inside the guide assembly, and the fan body drives the air to flow between the first ventilation hole, the second ventilation hole, the second guide layer, and the first guide layer; If it is a normal support mode control instruction, the lumbar support air bag is controlled to inflate, and a first convex portion is formed on the seat foam toward the side close to the human body; If it is a dual enhancement mode control instruction, the enhancement air bag and the lumbar support air bag are controlled to inflate, the fan body is started, and the fan body drives the gas to flow between the first ventilation hole, the second ventilation hole, the second guide layer and the first guide layer; a second bulge is formed on the seat foam toward the side close to the human body.

[0013] In a third aspect, the present application provides a car seat, comprising a car seat ventilation function and lumbar support function enhancement system as described above.

[0014] Compared with the prior art, the beneficial effects of the present application are as follows: the present application provides a system, a control method and a car seat for enhancing the ventilation function and lumbar support function of a car seat, the enhancement system is arranged on the seat frame of the car seat, including seat foam, the seat foam is covered on the seat frame, a plurality of first ventilation holes are provided on the seat foam, a guide component is provided on the seat foam, a plurality of second ventilation holes are provided on the side of the guide component close to the seat foam, the second ventilation holes correspond to the first ventilation holes one by one and are connected; a connecting hole is provided on the side of the guide component away from the seat foam, a fan body is provided at the connecting hole, a first guide layer is provided between the plurality of second ventilation holes and the connecting hole; the guide component has a first state and a second state, when in the first state, a second guide layer is formed between the plurality of second ventilation holes and the first guide layer, and the fan body drives the air The air flows between the first ventilation hole, the second ventilation hole, the second guide layer and the first guide layer; when in the second state, the second guide layer disappears, and the fan body drives the gas to flow between the first ventilation hole, the second ventilation hole and the first guide layer; by setting a guide component with two states, the guide component can form a second guide layer inside when in the first state. After the gas enters the guide component, it can fully flow in the first guide layer and the second guide layer, so that the gas pressure is balanced for the second time, and the gas flow and pressure in each first ventilation hole are relatively balanced, avoiding the situation where the local gas pressure is too high or too low and the overall ventilation volume is low; at the same time, the appearance of the second guide layer can form a bulge on the part of the seat foam corresponding to the second guide layer, which, combined with the original lumbar support system in the car seat, can achieve a higher lumbar support height.

[0015] It should be understood that the description of technical features, technical solutions, beneficial effects or similar language in this application does not imply that all features and advantages can be realized in any single embodiment. On the contrary, it is understood that the description of a feature or beneficial effect means that a specific technical feature, technical solution or beneficial effect is included in at least one embodiment. Therefore, the description of a technical feature, technical solution or beneficial effect in this specification does not necessarily refer to the same embodiment. Furthermore, the technical features, technical solutions and beneficial effects described in the present embodiment can also be combined in any appropriate manner. Those skilled in the art will understand that the embodiment can be implemented without one or more specific technical features, technical solutions or beneficial effects of a specific embodiment. In other embodiments, additional technical features and beneficial effects can also be identified in specific embodiments that do not embody all embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic diagram of the split structure of a system for enhancing the ventilation and lumbar support functions of a car seat provided in Example 1 of the present application; Figure 2 This is another schematic diagram of the split structure of a system for enhancing the ventilation and lumbar support functions of a car seat provided in Example 1 of the present application; Figure 3 A schematic structural diagram of a flow guide assembly and an enhanced air bag of a system for enhancing the ventilation and lumbar support functions of a vehicle seat provided in Example 1 of the present application; Figure 4 Another structural schematic diagram of a flow guide assembly and a reinforcement air bag of a system for enhancing the ventilation function and lumbar support function of a vehicle seat provided in Example 1 of the present application; Figure 5 A cross-sectional schematic diagram of a system for enhancing the ventilation and lumbar support functions of a vehicle seat provided in Example 1 of the present application, with the enhanced air bag in a fourth state and the lumbar support air bag in a sixth state; Figure 6 A schematic cross-sectional view of the air guide assembly of a vehicle seat ventilation and lumbar support enhancement system provided in Example 1 of the present application, with the enhanced air bag in a fourth state and the lumbar support air bag in a sixth state; Figure 7 A cross-sectional schematic diagram of a system for enhancing the ventilation and lumbar support functions of a vehicle seat provided in Example 1 of the present application, with the enhanced air bag in the third state and the lumbar support air bag in the sixth state; Figure 8 A schematic cross-sectional view of the air guide assembly of a system for enhancing the ventilation and lumbar support functions of a vehicle seat provided in Example 1 of the present application, with the enhanced air bag in the third state and the lumbar support air bag in the sixth state; Figure 9 A cross-sectional schematic diagram of a system for enhancing the ventilation and lumbar support functions of a vehicle seat provided in Example 1 of the present application, with the enhanced air bag in the third state and the lumbar support air bag in the fifth state; Figure 10 A cross-sectional schematic diagram of the guide assembly of a system for enhancing the ventilation and lumbar support functions of a car seat provided in Example 1 of the present application, when the enhanced air bag is in a third state and the lumbar support air bag is in a non-state.

[0018] The text annotations in the figure represent: 1. Seat foam; 2. Air guide assembly; 3. Fan body; 4. Reinforced air bag; 5. Seat net spring; 6. Lumbar support air bag; 11. Mounting slot; 21. First sealing layer; 22. Second sealing layer; 23. Pressure-bearing air guide; 101. First ventilation hole; 201. Second ventilation hole; 202. First air guide layer; 203. Second air guide layer; 221. Connecting hole. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The description in this section is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present application. Specifically, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present invention.

[0020] It should be noted that similar reference numerals and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0021] Example 1 As mentioned in the background technology, in order to solve the problems existing in the prior art, the present application provides a vehicle seat ventilation function and lumbar support function enhancement system, which is arranged on the seat frame of the vehicle seat, including: Seat foam 1, the seat foam 1 is covered on the seat frame, and a plurality of first ventilation holes 101 are opened on the seat foam 1; The air guide assembly 2 is disposed on the seat foam 1. A plurality of second ventilation holes 201 are formed on the side of the air guide assembly 2 close to the seat foam 1. The second ventilation holes 201 correspond to and are connected to the first ventilation holes 101 one by one. A connection hole 221 is formed on the side of the air guide assembly 2 away from the seat foam 1. A fan body 3 is disposed at the connection hole 221. A first air guide layer 202 is disposed between the plurality of second ventilation holes 201 and the connection hole 221. The guide component 2 has a first state and a second state. When in the first state, a second guide layer 203 is formed between the multiple second ventilation holes 201 and the first guide layer 202, and the fan body 3 drives the gas to flow between the first ventilation holes 101, the second ventilation holes 201, the second guide layer 203 and the first guide layer 202; when in the second state, the second guide layer 203 disappears, and the fan body 3 drives the gas to flow between the first ventilation holes 101, the second ventilation holes 201 and the first guide layer 202.

[0022] like Figure 1 and Figure 2 As shown, the first direction is the thickness direction of the backrest portion of the seat foam 1. The seat foam 1 has a first surface close to the passenger side and a second surface away from the passenger side. A plurality of first ventilation holes 101 are opened on the seat foam 1 and extend along the first direction to connect the first surface and the second surface; the guide component 2 is an elastic air bag with internal filling, and a plurality of second ventilation holes 201 are opened on the side close to the seat foam 1. The guide component 2 covers the side of the seat foam 1 away from the human body, and at the same time, the second ventilation holes 201 are connected to the first ventilation holes 1 01 correspond to each other and are connected, and its internal filler is a porous structure, which can stabilize the airflow when the gas passes through, thereby forming a first guide layer 202, and the fan body 3 is arranged at the connection hole 221. The fan body 3 has an axial air inlet and an annular air outlet, and its axial direction is the first direction; the guide component 2 can be switched between the first state and the second state. When the guide component 2 is close to the side of the seat foam 1 and the filler, a second guide layer 203 is formed, and at the same time, a bulge is formed on the portion of the seat foam 1 corresponding to the second guide layer 203. , the air guide component 2 is in the first state mentioned above. Due to the position difference between the fan body 3 and the ventilation holes, there is a large difference in gas pressure and flow in the ventilation holes closer to the fan body 3 and the ventilation holes farther away from the fan body 3. When the gas passes through the first guide layer 202 and the second guide layer 203, the gas flow and pressure can be balanced twice in the two guide layers, so that the ventilation volume and pressure of each area on the seat foam 1 are close to the same, and the bulge formed on the seat foam 1 can further increase the support height of the lumbar support system; when the first guide layer 202 and the second guide layer 203 are passed, the gas flow and pressure can be balanced twice in the two guide layers, so that the ventilation volume and pressure of each area on the seat foam 1 are close to the same, and the bulge formed on the seat foam 1 can further increase the support height of the lumbar support system; when the second guide layer 203 and the second guide layer 203 are passed, the gas flow and pressure can be balanced twice in the two guide layers, so that the ventilation volume and pressure of each area on the seat foam 1 are close to the same, and the bulge formed on the seat foam 1 can further increase the support height of the lumbar support system; when the second guide layer 202 and the second guide layer 203 are passed, the gas flow and pressure can be balanced twice. When the second guide layer 203 disappears and the seat foam 1 returns to its initial state, the guide component 2 is in the above-mentioned second state; when the air inlet of the fan body 3 is sealed with the connecting hole 221, its air outlet is located outside the guide component 2, and the fan body 3 can drive the gas from the side of the seat foam 1 close to the human body to the side away from the human body; when the air outlet of the fan body 3 is sealed with the connecting hole 221, its air inlet is located outside the guide component 2, and the fan body 3 can drive the gas from the side of the seat foam 1 away from the human body to the side close to the human body.

[0023] By providing a guide component 2 with two states, the guide component 2 can form a second guide layer 203 inside in the first state. After the gas enters the guide component 2, it can flow fully in the first guide layer 202 and the second guide layer 203, so that the gas pressure is balanced twice. The gas flow and pressure in each first ventilation hole 101 are relatively balanced, avoiding the situation where the local gas pressure is too high or too low and the overall ventilation volume is low; at the same time, the appearance of the second guide layer 203 can form a bulge on the part of the seat foam 1 corresponding to the second guide layer 203, which, in conjunction with the original lumbar support system in the car seat, can achieve a higher lumbar support height.

[0024] In a preferred embodiment, the flow guide assembly 2 includes: A first sealing layer 21 is provided on the seat foam 1 and has a plurality of second ventilation holes 201 formed therein; A second sealing layer 22 is provided on a side of the first sealing layer 21 away from the seat foam 1 , and an edge of the second sealing layer 22 is sealed to an edge of the first sealing layer 21 ; The pressure-bearing air guide 23 is filled between the first sealing layer 21 and the second sealing layer 22 to form a first air guide layer 202; The support structure is provided between the first sealing layer 21 and the pressure-bearing air guide member 23 , and is used to switch the air guide assembly 2 between the first state and the second state.

[0025] In a preferred embodiment, the supporting structure is a reinforced air bag 4, which has a third state and a fourth state. When in the third state, the reinforced air bag 4 is inflated and the flow guide component 2 switches to the first state; When in the fourth state, the reinforcing airbag 4 deflates and shrinks, and the flow guide component 2 switches to the second state.

[0026] like Figure 3-8As shown, the first sealing layer 21 and the second sealing layer 22 are both made of TPU film, and the edge parts of the two layers of TPU film are sealed and welded. A plurality of second ventilation holes 201 are opened on the first sealing layer 21, and a connecting hole 221 is opened on the second sealing layer 22. At the same time, inorganic anti-adhesion agents and other materials can be applied to the second sealing layer 22 for protection; the pressure-bearing air guide 23, that is, the above-mentioned filler, can adopt the 3D spacer mesh in the prior art. The 3D spacer mesh has a plurality of woven mesh holes and has a certain thickness in the first direction. At the same time, it has good air permeability and support. When squeezed by the human body, the ventilation effect can also be guaranteed. The pressure-bearing air guide 23 is filled between the first sealing layer 21 and the second sealing layer 22, and then supports the elastic air bag formed by the sealed connection of the first sealing layer 21 and the second sealing layer 22. At the same time, the porous structure of the pressure-bearing air guide 23 can form a first guide layer 202, which balances the gas when passing through. Gas pressure; the supporting structure adopts a reinforced air bag 4, which is arranged between the first sealing layer 21 and the pressure-bearing wind guide piece 23 and is connected to the external air source through an air pipe. When the reinforced air bag 4 is inflated to full expansion, that is, the third state mentioned above, the first sealing layer 21 is separated from the pressure-bearing wind guide piece 23, and then a second guide layer 203 is formed between the first sealing layer 21 and the pressure-bearing wind guide piece 23. The gas entering the guide component 2 flows fully in the two guide layers, and the gas pressure is subjected to secondary balance. Moreover, there is no other filler inside the second guide layer 203, and the wind resistance is low, which can further improve the ventilation effect. At the same time, the inflated reinforced air bag 4 can also provide additional support for the seat foam 1, and cooperate with the original lumbar support system to achieve better lumbar support function; when the reinforced air bag 4 deflates and shrinks, that is, the fourth state mentioned above, the second guide layer 203 disappears, and the part of the seat foam 1 corresponding to the second guide layer 203 moves to the side away from the human body to the initial position.

[0027] In a preferred embodiment, the plurality of second ventilation holes 201 and the projection of the supporting structure along the first direction are independent of each other.

[0028] The reinforced air bag 4 is staggered with the second ventilation hole 201 to avoid the reinforced air bag 4 blocking the second ventilation hole 201 and affecting the ventilation volume of the ventilation system. Moreover, after the reinforced air bag 4 is lifted up, that is, in the third state, its top surface is preferably arc-shaped, and there is point contact or line contact between it and the first sealing layer 21, further reducing the impact on the ventilation volume of the ventilation system. Furthermore, the reinforced air bag 4 can be used Figure 3 pillow-shaped air pockets in the Figure 4The cylindrical air bag, or other structural shapes that meet the requirements such as square or round, can also be used as the enhanced air bag 4. The massage air bag commonly used in car seats can also be used as the enhanced air bag 4. It should be noted that the enhanced air bag 4 can be a single-stage air bag or a multi-stage air bag. One or more can be set. At the same time, multiple enhanced air bags 4 can be connected separately and connected to the external air source through the same air pipe, or they can be independent of each other and connected to the external air source through different air pipes. There is no special limitation here.

[0029] In a preferred embodiment, a lumbar support assembly is further included. The lumbar support assembly is arranged on a side of the seat foam 1 away from the human body, and is used to support the human body.

[0030] In a preferred embodiment, the lumbar support assembly comprises: Seat net spring 5, seat net spring 5 is provided on the seat frame; The lumbar support air bag 6 is provided on the side of the seat net spring 5 close to the guide assembly 2; The waist support air bag 6 has a fifth state and a sixth state. When in the fifth state, the lumbar support airbag 6 is inflated, and a first bulge is formed on the seat foam 1 toward the side close to the human body; when in the sixth state, the lumbar support airbag 6 is deflated and contracted, and the first bulge disappears.

[0031] like Figure 1 、 Figure 2 and Figure 9 As shown, the seat net spring 5 is one of the components of the lumbar support system of the automobile seat. Its two sides are hung and fixed on the seat frame. The lumbar support air bag 6 is fixed on the seat net spring 5 and is also connected to the external air source through an air pipe. By controlling the inflation / deflation of the lumbar support air bag 6, the lumbar support air bag 6 can be switched between the fifth state and the sixth state, thereby causing the corresponding part of the seat foam 1 to move closer to or away from the human body.

[0032] In a preferred embodiment, the waist support airbag 6 and the reinforcement airbag 4 are provided correspondingly.

[0033] like Figure 9 As shown, the lumbar support air bag 6 and the reinforcement air bag 4 are correspondingly arranged in the thickness direction of the backrest part of the seat foam 1. Therefore, when the lumbar support air bag 6 and the reinforcement air bag 4 are inflated together, the support height and strength of the human waist and back can be further increased compared with the original lumbar support system.

[0034] In a preferred embodiment, a mounting groove 11 is provided on the side of the seat foam 1 away from the human body. The mounting groove 11 is connected to the plurality of first ventilation holes 101 , and the guide assembly 2 is disposed in the mounting groove 11 .

[0035] like Figure 2As shown, the mounting groove 11 is approximately a rectangular groove and is opened on the second surface of the seat foam 1. Multiple first ventilation holes 101 are connected to the bottom of the mounting groove 11. The inner contour of the mounting groove 11 matches the outer contour of the guide component 2, so that the guide component 2 can be embedded in the mounting groove 11 and welded to the seat foam 1.

[0036] Example 2 This embodiment provides a method for controlling the ventilation function and lumbar support function of a vehicle seat, which is implemented based on the vehicle seat ventilation function and lumbar support function enhancement system described in Example 1, and includes: Receive mode control instructions; If it is a normal ventilation mode control instruction, the fan body 3 is controlled to start, and the fan body 3 drives the gas to flow between the first ventilation hole 101, the second ventilation hole 201 and the first guide layer 202; If the enhanced ventilation mode control instruction is given, the enhanced air bag 4 is controlled to inflate, the fan body 3 is started, and a second guide layer 203 is formed inside the guide assembly 2. The fan body 3 drives the gas to flow between the first ventilation hole 101, the second ventilation hole 201, the second guide layer 203, and the first guide layer 202. If it is a normal support mode control instruction, the lumbar support airbag 6 is controlled to inflate, and a first convex portion is formed on the seat foam 1 toward the side close to the human body; If it is a dual enhancement mode control instruction, the enhancement air bag 4 and the lumbar support air bag 6 are controlled to inflate, the fan body 3 is started, and the fan body 3 drives the gas to flow between the first ventilation hole 101, the second ventilation hole 201, the second guide layer 203 and the first guide layer 202; a second convex portion is formed on the seat foam 1 toward the side close to the human body.

[0037] like Figure 5 and Figure 6 As shown, at this time, that is, the above-mentioned ordinary ventilation mode, the guide component 2 is in the second state, the reinforcement air bag 4 is in the fourth state, and the lumbar support air bag 6 is in the sixth state. When the ventilation system is working, the gas flows through the first guide layer 202 on both sides of the seat foam 1 to achieve the ventilation function. The height of the seat foam 1 close to the human body does not change; as shown in FIG. Figure 7 and Figure 8As shown, at this time, that is, the enhanced ventilation mode, the guide component 2 is in the first state, the enhanced air bag 4 is in the third state, and the lumbar support air bag 6 is in the sixth state. The enhanced air bag 4 is inflated to form a second guide layer 203 inside the guide component 2. When the ventilation system is working, the gas passes through the first guide layer 202 and the second guide layer 203 and flows on both sides of the seat foam 1. The double-layer balance increases the air volume of the ventilation system and makes the air volume more balanced. The ventilation volume is increased while the enhanced air bag 4 can take into account the support function. When the lumbar support air bag 6 is inflated, that is, the ordinary support mode, a first convex portion is formed on the seat foam 1 toward the side close to the human body to support the human body. Figure 9 and Figure 10 As shown, at this time, the above-mentioned double reinforcement mode, the guide component 2 is in the first state, the reinforcement air bag 4 is in the third state, and the lumbar support air bag 6 is in the fifth state. The reinforcement air bag 4 is inflated to form a second guide layer 203 inside the guide component 2. When the ventilation system is working, the gas flows on both sides of the seat foam 1 through the first guide layer 202 and the second guide layer 203, thereby improving the ventilation volume of the ventilation function. The inflation of the lumbar support air bag 6 and the reinforcement air bag 4 work together to provide support for the seat foam 1, so that a second protrusion is formed on the seat foam 1. The height of the second protrusion is higher than that of the first protrusion, so that the height of the seat foam 1 close to the human body is further increased.

[0038] Example 3 This embodiment provides a car seat, including a car seat ventilation function and lumbar support function enhancement system as described in Example 1.

[0039] The seat foam 1 is wrapped on the seat frame, and the outside of the seat foam 1 is also wrapped with a seat cover, which is made of breathable material. When the air inlet of the fan body 3 is sealed and connected to the connecting hole 221, the fan body 3 is started, and the gas can be driven by the fan body 3 and pass through the first ventilation hole 101, the second ventilation hole 201, the second guide layer 203 and the first guide layer 202 in sequence, and then be sucked in by the air inlet of the fan body 3, and then be discharged to the side of the car seat away from the human body through the air outlet of the fan body 3; when the air outlet of the fan body 3 is sealed and connected to the connecting hole 221, the fan body 3 is started, and the gas can be driven by the fan body 3 and be sucked in by the air inlet of the fan body 3, and then be discharged to the inside of the guide component 2 through the air outlet of the fan body 3, and then pass through the first guide layer 202, the second guide layer 203, the second ventilation hole 201 and the first ventilation hole 101 in sequence, and then be discharged to the side of the car seat close to the human body.

[0040] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can also make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A vehicle seat ventilation function and lumbar support function enhancement system, which is arranged on the seat frame of the vehicle seat, characterized in that: include: A seat foam (1), the seat foam (1) being coated on the seat frame, and the seat foam (1) being provided with a plurality of first ventilation holes (101); A flow guide component (2), the flow guide component (2) being arranged on the seat foam (1), a plurality of second ventilation holes (201) being provided on a side of the flow guide component (2) close to the seat foam (1), the second ventilation holes (201) corresponding to and communicating with the first ventilation holes (101) on a one-to-one basis; a connection hole (221) being provided on a side of the flow guide component (2) away from the seat foam (1), a fan body (3) being provided at the connection hole (221), and a first flow guide layer (202) being provided between the plurality of second ventilation holes (201) and the connection hole; The guide component (2) has a first state and a second state. When in the first state, a second guide layer (203) is formed between the plurality of second ventilation holes (201) and the first guide layer (202), and the fan body (3) drives the gas to flow between the first ventilation holes (101), the second ventilation holes (201), the second guide layer (203), and the first guide layer (202); when in the second state, the second guide layer (203) disappears, and the fan body (3) drives the gas to flow between the first ventilation holes (101), the second ventilation holes (201), and the first guide layer (202).

2. The vehicle seat ventilation function and lumbar support function enhancement system according to claim 1, characterized in that: The flow guide component (2) comprises: a first sealing layer (21), the first sealing layer (21) being provided on the seat foam (1), and the first sealing layer (21) being provided with a plurality of the second ventilation holes (201); a second sealing layer (22), the second sealing layer (22) being arranged on a side of the first sealing layer (21) away from the seat foam (1), the edge of the second sealing layer (22) being sealedly connected to the edge of the first sealing layer (21); a pressure-bearing air guide member (23), the pressure-bearing air guide member (23) being filled between the first sealing layer (21) and the second sealing layer (22) to form the first air guide layer (202); A support structure is provided between the first sealing layer (21) and the pressure-bearing air guide (23), and the support structure is used to switch the air guide assembly (2) between the first state and the second state.

3. The vehicle seat ventilation function and lumbar support function enhancement system according to claim 2, characterized in that: The supporting structure is a reinforced air bag (4), and the reinforced air bag (4) has a third state and a fourth state. When in the third state, the enhanced air bag (4) is inflated, and the flow guide component (2) switches to the first state; When in the fourth state, the enhanced air bag (4) deflates and contracts, and the flow guide component (2) switches to the second state.

4. The vehicle seat ventilation function and lumbar support function enhancement system according to claim 2, characterized in that: The projections of the plurality of second ventilation holes (201) and the support structure along the first direction are independent of each other.

5. The vehicle seat ventilation function and lumbar support function enhancement system according to claim 3, characterized in that: It also includes a lumbar support component, which is arranged on a side of the seat foam (1) away from the human body, and is used to support the human body.

6. The vehicle seat ventilation function and lumbar support function enhancement system according to claim 5, characterized in that: The waist support assembly comprises: A seat net spring (5), wherein the seat net spring (5) is arranged on the seat frame; A waist support air bag (6), the waist support air bag (6) being arranged on a side of the seat net spring (5) close to the guide assembly (2); The waist support air bag (6) has a fifth state and a sixth state. When in the fifth state, the waist support air bag (6) is inflated and expands, and a first convex portion is formed on the seat foam (1) toward the side close to the human body; when in the sixth state, the waist support air bag (6) is deflated and contracted, and the first convex portion disappears.

7. The vehicle seat ventilation function and lumbar support function enhancement system according to claim 6, characterized in that: The waist support air bag (6) is arranged corresponding to the reinforcement air bag (4).

8. The vehicle seat ventilation function and lumbar support function enhancement system according to claim 1, characterized in that: A mounting groove (11) is provided on the side of the seat foam (1) away from the human body, the mounting groove (11) is connected to a plurality of the first ventilation holes (101), and the flow guide component (2) is arranged in the mounting groove (11).

9. A method for controlling the ventilation function and lumbar support function of a vehicle seat, implemented based on the vehicle seat ventilation function and lumbar support function enhancement system according to claim 7, characterized in that: include: Receive mode control instructions; If it is a normal ventilation mode control instruction, the fan body (3) is controlled to start, and the fan body (3) drives the gas to flow between the first ventilation hole (101), the second ventilation hole (201) and the first guide layer (202); If it is an enhanced ventilation mode control instruction, the enhanced air bag (4) is controlled to be inflated, the fan body (3) is started, the second guide layer (203) is formed inside the guide component (2), and the fan body (3) drives the gas to flow between the first ventilation hole (101), the second ventilation hole (201), the second guide layer (203) and the first guide layer (202); If it is a normal support mode control instruction, the waist support air bag (6) is controlled to be inflated, and the seat foam (1) forms a first convex portion on the side close to the human body; If it is a dual enhancement mode control instruction, the enhancement air bag (4) and the waist support air bag (6) are controlled to inflate, the fan body (3) is started, and the fan body (3) drives the gas to flow between the first ventilation hole (101), the second ventilation hole (201), the second guide layer (203) and the first guide layer (202); and a second convex portion is formed on the seat foam (1) toward the side close to the human body.

10. A car seat, characterized in that: The invention comprises a system for enhancing the ventilation function and lumbar support function of a car seat as described in any one of claims 1 to 8.

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