A circulating ventilation structure for a seat, a seat and a vehicle

Abstract

The utility model belongs to the technical field of automobile parts, provide a circulation ventilation structure for seat, seat and vehicle, circulation ventilation structure includes: interval setting first ventilation area and second ventilation area on seat, first ventilation area and second ventilation area all are located the human body contact surface of seat, the inside of intercommunicating piece is equipped with fluid passage, and fluid passage includes the first opening of first ventilation area intercommunication, and the second opening of second ventilation area intercommunication, fan, its setting is on seat, and includes fan blade, and fan blade is opposite first opening or second opening. Compared with prior art, the utility model has through setting interval distribution's first, second ventilation area on the human body contact surface of seat, and the synergies of intercommunicating piece and fan are combined, realize the efficient air flow circulation between two areas.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, specifically relating to a circulating ventilation structure for seats, seats, and vehicles. Background Technology

[0002] With the continuous improvement of people's travel needs, the comfort of transportation (especially automobiles) has become one of the important indicators for measuring product quality. During long-term travel, the human body is in continuous contact with the seat surface, which can easily create a high-temperature and high-humidity microenvironment in the contact area, seriously affecting the riding experience. The main reasons for this problem include the following aspects:

[0003] First, the surface material of the seats is mostly made of genuine leather, PU and other artificial leather materials. Although they have good wear resistance and appearance, they have poor breathability, which makes it difficult for the heat emitted by the human body to be effectively dissipated. The seat surface temperature can rise to more than 40°C after being exposed to the sun in summer or after prolonged use, which significantly increases the feeling of stuffiness.

[0004] Secondly, due to the strong sealing properties of the seat foam layer and surface material, the air circulation between the seat and the human body is extremely low, which makes it impossible to achieve effective heat convection and moisture removal, further aggravating the heat accumulation phenomenon.

[0005] Furthermore, continuous sweating causes moisture to accumulate on surfaces. If this moisture cannot be expelled in time, it can not only cause sticky and uncomfortable skin, but may also breed bacteria, affecting the health and comfort of drivers and passengers.

[0006] To address these issues, various seat ventilation solutions have been proposed in the prior art. For example, passive ventilation structures are employed, such as perforations in the seat surface combined with breathable foam, utilizing the pressure of the seat body to achieve micro-air circulation. However, such structures rely on natural convection, resulting in limited cooling effects; actual temperature differences between the seat surface and the environment are typically less than 3°C, making it difficult to meet comfort requirements in high-temperature environments.

[0007] Another technical solution uses an integrated blower-suction fan module, which achieves blowing or suction functions by rotating the fan forward or backward or switching the air duct. However, this design has obvious drawbacks: at any given time, the fan can only execute a single mode—either blowing or suction—and cannot achieve bidirectional coordinated airflow circulation; at the same time, to achieve the switching between blowing and suction, a complex valve structure or stacked fan assembly is often required, resulting in a large overall structure, high noise (operating noise generally exceeds 45dB), and it occupies the internal space of the seat foam, compressing the foam thickness and affecting the seat's support and riding comfort.

[0008] In addition, traditional fan layouts are mostly limited to a single area (such as only blowing air to the seat cushion or backrest), lacking a systematic airflow organization design for the entire contact surface of the seat, making it difficult to form an efficient and uniform ventilation circulation.

[0009] In summary, existing seat ventilation technologies generally suffer from problems such as low ventilation efficiency, limited functionality, complex structure, high noise levels, large space occupation, and impact on comfort, making it difficult to simultaneously meet the comprehensive needs of efficient heat dissipation, low-noise operation, and passenger experience. Utility Model Content

[0010] The technical problem to be solved by this utility model is to provide a circulating ventilation structure for seats, seats and vehicles, in light of the current state of the technology.

[0011] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a circulating ventilation structure for a seat is proposed, comprising: a first ventilation area and a second ventilation area spaced apart on the seat, wherein the first ventilation area and the second ventilation area are both located on the human contact surface of the seat;

[0012] A connecting component, wherein a fluid channel is provided inside, the fluid channel including a first opening communicating with the first ventilation zone and a second opening communicating with the second ventilation zone;

[0013] A fan, disposed on the seat, includes fan blades facing either the first opening or the second opening; wherein,

[0014] When the fan drives the fan blades to rotate, the fan blades push the airflow toward the first opening or the second opening, and draw the airflow at the corresponding second opening or the first opening through the fluid channel of the connecting member, so that an airflow circulation is formed between the first ventilation zone and the second ventilation zone.

[0015] In the aforementioned circulating ventilation structure for a seat, both the first ventilation zone and the second ventilation zone are located on the seat cushion.

[0016] In the aforementioned circulating ventilation structure for a seat, both the first ventilation zone and the second ventilation zone are located on the back of the seat.

[0017] In the aforementioned circulating ventilation structure for a seat, one of the first ventilation zone and the second ventilation zone is located on the seat cushion, and the other is located on the seat back.

[0018] In the aforementioned circulating ventilation structure for a seat, the fan blades include an air supply end facing the second ventilation zone and an air intake end facing the second opening; the circulating ventilation structure further includes:

[0019] A first air bag is disposed between the first opening and the first ventilation zone. One end of the first air bag is connected to the first opening and is used to gather the airflow of the first ventilation zone into the first opening.

[0020] The second air bag is disposed between the air supply end and the second ventilation zone, and is used to evenly deliver the airflow delivered by the fan blades to the second ventilation zone.

[0021] In the aforementioned circulating ventilation structure for a seat, both the first air bag and the second air bag are made of elastic material, used to separate the first ventilation area from the first opening and the second ventilation area from the fan when the first ventilation area and / or the second ventilation area are subjected to force.

[0022] This utility model also provides a seat to solve the above-mentioned technical problems, including:

[0023] The aforementioned circulating ventilation structure;

[0024] The frame assembly, wherein the connecting member and the fan are both disposed on the frame assembly;

[0025] Seat foam is disposed on the frame assembly, and the first ventilation area and the second ventilation area are both multiple through holes disposed on the seat foam.

[0026] In the aforementioned circulating ventilation structure for a seat, the seat foam comprises:

[0027] A first recessed area is provided at one end of the seat foam facing the frame assembly and communicates with the first ventilation area;

[0028] The second recessed area is located at one end of the seat foam facing the frame assembly and communicates with the second ventilation area.

[0029] In the aforementioned circulating ventilation structure for a seat, the connecting member is a connecting pipe fixed on the frame assembly. The first end of the connecting pipe forming the first opening is embedded in the frame assembly, and the second end of the connecting pipe forming the second opening faces the fan. The connecting pipe extends along the outer contour of the frame assembly, and the first end and the second end are smoothly connected.

[0030] This utility model solves the above-mentioned technical problems and also proposes a means of transportation, including the aforementioned seat.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] (1) By setting up first and second ventilation zones at intervals on the human contact surface of the seat, and combining the synergistic effect of the connecting parts and the fan, efficient airflow circulation between the two zones is achieved. The fan can complete both air supply and return simultaneously by operating in one direction, which significantly improves ventilation efficiency, effectively removes heat and moisture from the seat surface, and improves the microenvironment of high temperature and high humidity.

[0033] (2) By setting up the first air bag and the second air bag, the airflow convergence at the suction end and the airflow uniform distribution at the delivery end are realized respectively, which significantly improves the airflow transmission efficiency and distribution uniformity.

[0034] (3) The air bag made of elastic material can undergo elastic deformation under the pressure of a person sitting on it, automatically forming a buffer isolation layer between the ventilation area and the connecting opening or fan, preventing the air duct from being blocked or the airflow from being short-circuited due to foam compression, and ensuring that the ventilation channel remains unobstructed under load. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the seat of this utility model in the state of a dummy simulating a real person sitting.

[0036] Figure 2 yes Figure 1 Top view.

[0037] Figure 3 yes Figure 2 Sectional view along the AA direction.

[0038] Figure 4 It is a 3D view of the seat foaming, the first air bag, and the second air bag during installation.

[0039] Figure 5 This is a 3D model of the seat foam.

[0040] Figure 6 It is a perspective view of the connecting parts and the fan mounted on the frame assembly.

[0041] Figure 7 It is a 3D view of the connecting parts and the fan when they are connected.

[0042] In the diagram, 100 is the frame assembly; 110 is the first ventilation zone; 120 is the second ventilation zone; 130 is the first recessed area; 140 is the second recessed area; 200 is the seat foam; 300 is the connecting piece; 310 is the first opening; 320 is the second opening; 400 is the fan; 500 is the first air bag; 600 is the second air bag; 700 is the dummy; and 800 is the airflow circulation. Detailed Implementation

[0043] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0044] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0045] like Figures 1 to 7 As shown, a circulating ventilation structure for a seat according to the present invention includes: a first ventilation zone 110, a second ventilation zone 120, a connecting member 300, and a fan 400.

[0046] Specifically, the first ventilation zone 110 and the second ventilation zone 120 are spaced apart on the seat. Both of them form the airflow channel of the circulating ventilation structure and are located on the human contact surface of the seat, i.e., the front of the seat.

[0047] The connecting member 300 has a fluid channel inside, which includes a first opening 310 communicating with the first ventilation zone 110 and a second opening 320 communicating with the second ventilation zone 120. (Refer to...) Figure 3 The connecting component 300, which connects the first ventilation zone 110 and the second ventilation zone 120, serves as a bridge for airflow when a dummy 700 is used to simulate a real person sitting in order to test the actual working condition of the seat. Its internal fluid channel ensures that the airflow circulates on the side of the seat facing the human body.

[0048] The fan 400 is mounted on the seat and serves as the power source for the entire airflow circulation system 800. In one embodiment, the fan 400 is connected to the vehicle's central control system via a power connector and is powered by the vehicle's power supply. The fan 400 includes fan blades, which are mounted facing either the first opening 310 or the second opening 320.

[0049] When the fan 400 drives the fan blades to rotate, the fan blades push the airflow toward the first opening 310 or the second opening 320. The airflow is blown out through the corresponding second ventilation zone 120 or the first ventilation zone 110, acting on the body surface of the passenger and carrying away heat and moisture. At the same time, under the action of the fluid channel of the connecting member 300, a negative pressure suction is formed in another ventilation zone, drawing the air from the body surface area through the first ventilation zone 110 or the second ventilation zone 120 and returning it through the fluid channel, thereby forming a closed airflow circulation 800 between the two ventilation zones.

[0050] This solution achieves efficient airflow circulation 800 between the two areas by setting up spaced first and second ventilation zones 120 on the human contact surface of the seat, and combining the synergistic effect of the connecting member 300 and the fan 400. The fan 400 can simultaneously complete air supply and return by operating in one direction, significantly improving ventilation efficiency, effectively removing heat and moisture from the seat surface, and improving the high-temperature and high-humidity microenvironment.

[0051] Compared to traditional single-mode fans 400 that can only blow or draw air, this structure can achieve bidirectional airflow circulation 800 without switching operating modes. It has the advantages of simple structure, low energy consumption, low noise, and small space occupation. It effectively avoids the encroachment of complex air valves or stacked fans 400 on the space of seat foam 200, and takes into account both ventilation performance and riding comfort.

[0052] In one embodiment, both the first ventilation zone 110 and the second ventilation zone 120 are located on the seat cushion.

[0053] By placing both the first ventilation zone 110 and the second ventilation zone 120 within the seat cushion area, a localized, highly efficient airflow circulation 800 can be formed on the contact surface between the buttocks and thighs. This is particularly suitable for the urgent need for seat surface heat dissipation during long drives or in high-temperature environments. By constructing circulating air ducts in localized areas of the seat cushion, the most heat-prone, sweat-prone weight-bearing areas are effectively improved, enhancing seating comfort while avoiding the structural complexity and increased costs associated with a ventilation system covering the entire seat.

[0054] In another embodiment, both the first ventilation zone 110 and the second ventilation zone 120 are located on the back of the seat.

[0055] By placing two ventilation zones in the backrest area, a directional airflow circulation of 80° is established between the back and the seat contact surface, effectively expelling accumulated heat and moisture from the back and preventing problems such as stuffiness, sweating, and stickiness. It is especially suitable for summer or sports seats and other scenarios where back ventilation is required, significantly improving the dryness and support comfort of the upper body.

[0056] In yet another embodiment, one of the first ventilation zone 110 and the second ventilation zone 120 is located on the seat cushion and the other is located on the seat back.

[0057] By placing the first ventilation zone 110 and the second ventilation zone 120 on the seat cushion and backrest respectively, a cross-regional airflow circulation 800 is achieved across the entire human body contact surface of the seat, forming a longitudinal ventilation path from the seat cushion to the backrest (or vice versa), promoting the expulsion of heat and moisture throughout the body. This layout better conforms to the heat dissipation distribution characteristics of the human body, improving overall ventilation uniformity and comfort, and is especially suitable for high-end passenger vehicles, long-distance driving seats, and other application scenarios with high requirements for comprehensive comfort.

[0058] It is worth mentioning that the fan blade includes an air supply end facing the second ventilation zone 120 and an air intake end facing the second opening 320; the circulating ventilation structure also includes: a first air bag 500, which is disposed between the first opening 310 and the first ventilation zone 110, with one end of the first air bag 500 connected to the first opening 310, for converging the airflow of the first ventilation zone 110 into the first opening 310; and a second air bag 600, which is disposed between the air supply end and the second ventilation zone 120, for evenly delivering the airflow delivered by the fan blade to the second ventilation zone 120.

[0059] By setting up a first air bag 500 and a second air bag 600, airflow convergence at the intake end and airflow uniformity at the delivery end are achieved, significantly improving airflow transmission efficiency and distribution uniformity. The first air bag 500 can effectively collect the return airflow from the first ventilation zone 110, reducing flow loss; the second air bag 600 diffuses the concentrated airflow output by the fan 400 into a gentle and uniform delivery airflow, avoiding discomfort caused by localized strong winds. At the same time, the air bag structure has a flexible airflow guiding function, adapting to seat deformation and ensuring ventilation stability.

[0060] Furthermore, both the first air bag 500 and the second air bag 600 are made of elastic material and are used to separate the first ventilation zone 110 from the first opening 310 and the second ventilation zone 120 from the fan 400 when the first ventilation zone 110 and / or the second ventilation zone 120 are subjected to force.

[0061] The air bag, made of elastic material, can elastically deform under the pressure of a person sitting on it, automatically forming a buffer layer between the ventilation area and the connecting opening or fan 400. This prevents airflow blockage or short-circuiting caused by foam compression, ensuring that the ventilation channel remains unobstructed under load. At the same time, this structure effectively protects the fan 400 and connecting part 300 from pressure damage, extends system life, and maintains the stability of ventilation performance, achieving the ideal effect of "no reduction in airflow under pressure".

[0062] Preferably, the first air bag 500 and the second air bag 600 are hollow bladders, with a connection port at one end matching the first opening 310 or the air outlet of the fan 400, and a diffuser port corresponding to the first ventilation zone 110 or the second ventilation zone 120 at the other end. The interior is a cavity flow channel, allowing airflow to flow axially or diffused, achieving airflow convergence (intake end) or uniform distribution (supply end). The cross-section can be designed as circular, elliptical, or flat to fit the interior space layout of the seat, and is made of thermoplastic polyurethane.

[0063] This solution also proposes a seat, including: a frame assembly 100, a seat foam 200, and the aforementioned circulating ventilation structure.

[0064] Specifically, the connecting piece 300 and the fan 400 are both mounted on the frame assembly 100; the seat foam 200 is mounted on the frame assembly 100, and the first ventilation zone 110 and the second ventilation zone 120 are both multiple through holes mounted on the seat foam 200.

[0065] The circulating ventilation structure is integrated into the overall seat structure. The connecting piece 300 and the fan 400 are fixed to the frame assembly 100. The ventilation area is achieved through through-holes in the seat foam 200 layers, resulting in a reasonable layout and compact structure. This design makes full use of the seat's internal space, avoiding additional space occupied by the foam thickness and effectively ensuring the seat's original cushioning performance and support. At the same time, the through-holes in the seat foam 200 work in conjunction with the air duct system to achieve concealed ventilation, resulting in a clean and aesthetically pleasing appearance and enhancing the product's quality and user experience. Furthermore, by setting multiple through-holes in the seat foam 200 to form the first ventilation zone 110 and the second ventilation zone 120, it is possible to prevent some through-holes from being blocked due to localized pressure from the occupant's body, ensuring the continuous and stable ventilation function.

[0066] Furthermore, the seat foam 200 has a first recessed area 130 and a second recessed area 140 on the side facing the frame assembly 100, which are respectively connected to the first ventilation area 110 and the second ventilation area 120. By setting the above-mentioned recessed areas, an assembly space for accommodating the first air bag 500 and the second air bag 600 is formed, and an airflow buffer cavity is formed to reduce ventilation resistance and improve airflow stability.

[0067] Furthermore, the connecting member 300 is a connecting pipe fixed on the frame assembly 100. The first end of the connecting pipe forming the first opening 310 is embedded in the frame assembly 100, and the second end of the connecting pipe forming the second opening 320 faces the fan 400. The connecting pipe extends along the outer contour of the frame assembly 100, and the first end and the second end are smoothly connected.

[0068] The connecting pipe extends along the outer contour of the frame assembly 100 and smoothly connects both ends, making full use of the space at the edge of the seat and avoiding encroachment on the core foam area, thus preserving the seat's comfort and support structure to the maximum extent. The connecting pipe is fixed to the frame, ensuring structural stability and reliability, a clear airflow path, low flow resistance, and easy modular installation and maintenance. It is positioned directly opposite the fan 400 to ensure efficient airflow introduction / extraction, improving the overall ventilation efficiency and operational stability of the system.

[0069] This plan also proposes a means of transportation, including the aforementioned seats, which can be a car, truck, train, etc.

[0070] In summary, this solution provides a seat circulation ventilation structure with a reasonable structure, high ventilation efficiency, and excellent comfort, and its application in seats and vehicles. By setting a first ventilation zone 110 and a second ventilation zone 120 spaced apart on the seat's human contact surface, and combining the synergistic effect of the connecting member 300 with the built-in fluid channel and the directional fan 400, a closed airflow circulation 800 between the two ventilation zones is achieved. The fan 400 can simultaneously complete air supply and return actions in unidirectional operation, breaking through the functional limitations of traditional blower-suction integrated fans 400 that are "either blowing or sucking," significantly improving ventilation efficiency and effectively alleviating the problem of high temperature and high humidity on the seat surface.

[0071] This solution utilizes an elastic air duct design to ensure smooth airflow while isolating the air duct under pressure conditions, preventing airflow short-circuiting or blockage caused by foam compression and ensuring stable ventilation performance. By setting a recessed area at the bottom of the seat foam 200, the airflow buffering and pressure equalization effect are optimized, reducing flow resistance and operating noise. The connecting pipe is arranged along the outer contour of the frame assembly 100, making full use of the edge space without encroaching on the foam body, thus balancing ventilation function and seating comfort.

[0072] This flexible circulating ventilation structure can be applied to seat cushions, backrests, or cross-area ventilation scenarios to meet diverse seating needs. The entire system is compact, operates quietly, consumes little energy, and is easy to integrate, making it particularly suitable for high-end seating products in the automotive, rail transportation, and aviation industries. This solution effectively addresses the technical challenges of existing ventilated seats, such as low ventilation efficiency, complex structure, high noise levels, and compromised comfort.

[0073] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0074] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0075] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A circulating ventilation structure for a seat, characterized in that, include: A first ventilation zone and a second ventilation zone are spaced apart on the seat, both of which are located on the human contact surface of the seat; A connecting component, wherein a fluid channel is provided inside, the fluid channel including a first opening communicating with the first ventilation zone and a second opening communicating with the second ventilation zone; A fan, disposed on the seat, includes fan blades facing either the first opening or the second opening; wherein, When the fan drives the fan blades to rotate, the fan blades push the airflow toward the first opening or the second opening, and draw the airflow at the corresponding second opening or the first opening through the fluid channel of the connecting member, so that an airflow circulation is formed between the first ventilation zone and the second ventilation zone.

2. The circulating ventilation structure for a seat as described in claim 1, characterized in that, Both the first ventilation zone and the second ventilation zone are located on the seat cushion of the seat.

3. A circulating ventilation structure for a seat as described in claim 1, characterized in that, Both the first ventilation zone and the second ventilation zone are located on the back of the seat.

4. A circulating ventilation structure for a seat as described in claim 1, characterized in that, One of the first ventilation zone and the second ventilation zone is located on the seat cushion of the seat, and the other is located on the backrest of the seat.

5. A circulating ventilation structure for a seat as described in claim 1, characterized in that, The fan blades include an air supply end facing the second ventilation zone and an air intake end facing the second opening; The circulating ventilation structure also includes: A first air bag is disposed between the first opening and the first ventilation zone. One end of the first air bag is connected to the first opening and is used to gather the airflow of the first ventilation zone into the first opening. The second air bag is disposed between the air supply end and the second ventilation zone, and is used to evenly deliver the airflow delivered by the fan blades to the second ventilation zone.

6. A circulating ventilation structure for a seat as described in claim 5, characterized in that, Both the first and second air bags are made of elastic material and are used to separate the first ventilation area from the first opening and the second ventilation area from the fan when the first ventilation area and / or the second ventilation area are subjected to force.

7. A type of seat, characterized in that, include: The circulating ventilation structure as described in any one of claims 1 to 6; The frame assembly, wherein the connecting member and the fan are both disposed on the frame assembly; Seat foam is disposed on the frame assembly, and the first ventilation area and the second ventilation area are both multiple through holes disposed on the seat foam.

8. A seat as described in claim 7, characterized in that, The seat foam includes: A first recessed area is provided at one end of the seat foam facing the frame assembly and communicates with the first ventilation area; The second recessed area is located at one end of the seat foam facing the frame assembly and communicates with the second ventilation area.

9. A seat as described in claim 7, characterized in that, The connecting component is a connecting pipe fixed on the frame assembly. The first end of the connecting pipe forming the first opening is embedded in the frame assembly, and the second end of the connecting pipe forming the second opening faces the fan. The connecting pipe extends along the outer contour of the frame assembly, and the first end and the second end are smoothly connected.

10. A means of transportation, characterized in that, Includes a seat as described in any one of claims 8 to 9.

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