Seat ventilation system and control method thereof

Abstract

The present invention discloses a seat ventilation system and a control method thereof, which relate to the technical field of automobile seats, wherein the seat ventilation system includes a seat frame, an air outlet structure and a ventilation structure, the seat frame is provided with an air outlet control structure, the air outlet structure is installed on the seat frame, the output end of the air outlet structure is provided with a first air outlet and a second air outlet, the ventilation structure is provided on the seat frame, the ventilation structure is provided with a first air guide passage and a second air guide passage, the two ends of the first air guide passage are respectively connected to the second air outlet and the air outlet control structure. During actual use, this solution can lock the air circulation in the user's seating area and can adapt to users of different body shapes; and the cost is low, the structure is simple, and the riding comfort of the seat is not affected. In addition, this solution can continuously monitor the temperature of the seat and the interior of the vehicle and select a suitable ventilation mode. Good ventilation effect and suitable temperature experience of the seat are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile seats, and in particular to a seat ventilation system and a control method thereof. Background Art

[0002] In the evaluation of car driving comfort, temperature comfort is a very important part of user riding comfort. The seat ventilation function in hot weather can greatly improve the user's car experience. The currently commonly used ventilation function is to arrange ventilation pads and ventilation holes in the area where the passengers sit, so that air circulation is brought in through the holes punched in the fabric, and the area where the passengers are in contact with the seat is cooled. However, after the user sits in the seat, the fabric holes in the ventilation area are blocked by the user, which greatly hinders the circulation of air and is not conducive to reducing the temperature inside the seat after the vehicle is exposed to the sun; if holes are opened in the non-riding area, the air will be lost from the non-riding area, and the heat in the area where the human body is in contact with the seat cannot be dissipated. Therefore, there is a need for a car seat ventilation system with a high cooling rate and a control method thereof, which can increase the cooling rate of the entire seat and will not cause problems such as air leakage. Summary of the Invention

[0003] The main purpose of the present invention is to propose a seat ventilation system and its control method, aiming to solve the problem that the traditional seat ventilation structure and function are not conducive to the heat dissipation of the seat itself, and the heat in the contact area between the occupant and the seat is difficult to dissipate in time, resulting in a poor user experience.

[0004] To achieve the above-mentioned object, the present invention proposes a seat ventilation system, a seat frame, an air outlet control structure provided on the seat frame, and the air outlet control structure can be opened or closed;

[0005] An air outlet structure is installed on the seat frame, and a first air outlet and a second air outlet are provided on the output end of the air outlet structure; and

[0006] The ventilation structure is provided on the seat frame, and the ventilation structure is provided with a first air guide passage and a second air guide passage. The two ends of the first air guide passage are respectively connected to the second air outlet and the air outlet control structure, one end of the second air guide passage is connected to the first air outlet, and the other end of the second air guide passage is connected to the first air guide passage.

[0007] In one embodiment, the end of the ventilation structure away from the seat frame is a seating end;

[0008] The ventilation structure includes a circulation layer, and the circulation layer includes:

[0009] A first housing, having a plurality of upwardly convex channel wall structures on one end portion corresponding to the seating end, wherein a plurality of guide holes are provided on a peripheral wall of the channel wall structure for conducting air between the inner and outer sides of the first housing; and

[0010] a first flexible filling member, filling the inner cavity of the first shell;

[0011] Two opposite ends of the first shell in the horizontal direction are respectively connected to the second air outlet and the air outlet control structure to form the first air guiding passage.

[0012] In one embodiment, a plurality of first connection holes are provided on a side of the first shell away from the seating end;

[0013] The ventilation structure further comprises:

[0014] an air guide layer comprising a second outer shell and a second flexible filling member, wherein the second outer shell is disposed on the seat frame, a third connecting pipe is disposed at one end of the second outer shell, the third connecting pipe is connected to the first air outlet, and a plurality of first air guide holes are disposed at the upper end of the second outer shell, and the second flexible filling member is filled in the second outer shell; and

[0015] a seat foam provided on the second shell, and having a plurality of second air guide holes formed on the seat foam, wherein both ends of the second air guide holes are respectively connected to the first air guide holes and the first connecting hole to form the second air guide passage;

[0016] The first shell is arranged on the upper end surface of the seat foam.

[0017] In one embodiment, the first shell and the second shell are both made of soft plastic; and / or,

[0018] The first flexible filling piece and the second flexible filling piece are both configured as soft and loose structures.

[0019] In one embodiment, the air outlet structure includes:

[0020] a fan mounted on the seat frame; and

[0021] The air distribution duct includes an air inlet duct portion, two air outlet duct portions, and a wind shield structure, wherein one end of the air inlet duct portion is connected to the air outlet end of the fan, and one end of each of the two air outlet duct portions is connected to the air inlet duct portion. The wind shield structure is provided at the external connection of the two air outlet duct portions and is used to block one of the two air outlet duct portions.

[0022] The first air outlet and the second air outlet respectively correspond to one end of the first air outlet pipe portion and the second air outlet pipe portion away from the air inlet pipe portion.

[0023] In one embodiment, a first connecting pipe and a second connecting pipe are respectively provided at two opposite ends of the first housing in a horizontal direction;

[0024] The air outlet control structure includes:

[0025] an air outlet duct mounted on the seat frame; and

[0026] a baffle structure, provided inside the air outlet duct, for controlling the opening and closing of the air outlet duct;

[0027] The first connecting pipe and the second connecting pipe are connected to the second air outlet and one end of the air outlet pipe respectively.

[0028] In one embodiment, the first shell and the outer side of the seat foam are both provided with a soft foam layer, a face cover is provided on the soft foam layer, and the face cover is provided with a plurality of through holes corresponding to the seating end; and\or,

[0029] A temperature sensor is provided inside the seat foam; and / or,

[0030] A control box is also provided on the seat frame.

[0031] The present invention further provides a method for controlling a seat ventilation system. The method is applied to the above-mentioned seat ventilation system and includes the following control steps:

[0032] Set the temperature standard value;

[0033] Under the condition that the seat ventilation system is turned on, respectively obtaining a current seat temperature value of the seat ventilation system and a current vehicle interior temperature value;

[0034] comparing the seat temperature value with the temperature standard value and the vehicle interior temperature value, and controlling the seat ventilation system to open cooling mode 1 or cooling mode 2 according to the comparison result;

[0035] Among them, turning on the cooling mode 1 requires starting the fan, opening the first air outlet, closing the second air outlet, and controlling the baffle structure in the air outlet duct to open;

[0036] To start the cooling mode 2, the fan needs to be started, the first air outlet is closed, the second air outlet is opened, and the baffle structure in the air outlet duct is controlled to be closed.

[0037] In one embodiment, controlling the seat ventilation system to start cooling mode 1 or cooling mode 2 according to the comparison result includes:

[0038] When the seat temperature is higher than one of the standard temperature and the vehicle interior temperature, cooling mode 1 is activated;

[0039] When the seat temperature is lower than the vehicle interior temperature, cooling mode 2 is activated.

[0040] In one embodiment, controlling the seat ventilation system to start cooling mode 1 or cooling mode 2 according to the comparison result further includes:

[0041] When the cooling mode 1 is turned on and the seat temperature is lower than the vehicle interior temperature, the cooling mode 1 is switched to the cooling mode 2;

[0042] When the cooling mode 2 is turned on and the seat temperature value is higher than the vehicle interior temperature value, the cooling mode 2 is switched to the cooling mode 1.

[0043] This solution solves the problem of opening holes in seat ventilation pads. During actual use, the channel wall structure at the ventilation holes in the area squeezed by the user will bend, allowing air to circulate there. In other unpressurized areas, the channel wall is not bent, and air cannot circulate. Therefore, the air circulation is locked in the user's seating area, which can adapt to users of different body shapes. It is also low-cost, simple in structure, and does not affect the seat's riding comfort. In addition, this solution can continuously monitor the temperature of the seat and the interior of the car and select the appropriate ventilation mode. Different ventilation modes can be switched automatically to ensure good ventilation and a suitable temperature experience for the seat. This greatly improves the user's riding experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 the structures shown in these drawings without paying any creative work.

[0045] Figure 1 An exploded view of the structure of an embodiment of a seat ventilation system provided by the present invention;

[0046] Figure 2 for Figure 1 The overall appearance of the middle seat ventilation system;

[0047] Figure 3 for Figure 2 AA cross-section diagram of the center seat ventilation system and airflow pattern in cooling mode 1;

[0048] Figure 4 for Figure 2AA cross-section diagram of the center seat ventilation system and airflow pattern in cooling mode 2;

[0049] Figure 5 for Figure 1 Schematic diagram of the overall structure of the middle flow layer and the gas flow when the channel wall structure deforms;

[0050] Figure 6 for Figure 1 Schematic diagram of the structure of the center-divided air duct.

[0051] Figure 7 For application Figure 1 Flowchart of the control method of the middle seat ventilation system;

[0052] Figure 8 for Figure 7 Partial control method flow chart of the control method;

[0053] Figure 9 for Figure 7 Another part of the control method flow chart of the control method.

[0054] Description of Figure Numbers:

[0055] 100. Seat ventilation system; 1. Seat frame; 11. Air outlet control structure; 111. Air outlet duct; 112. Baffle structure; 2. Air outlet structure; 21. Fan; 22. Air distribution duct; 221. Air inlet duct; 222. Air outlet duct; 223. Wind shield structure; 2231. Baffle member; 224. First air outlet; 225. Second air outlet; 3. Ventilation structure; 31. Circulation layer; 311. First shell; 3111. Channel Wall structure; 3112, air guide hole; 3113, first connecting hole; 3114, first connecting tube; 3115, second connecting tube; 312, first flexible filling piece; 32, air guide layer; 321, second outer shell; 3211, third connecting tube; 3212, first air guide hole; 322, second flexible filling piece; 33, seat foam; 331, second air guide hole; 4, soft foam layer; 5, face cover; 7, temperature sensor; 8, control box.

[0056] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0058] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0059] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0060] In the evaluation of car driving comfort, temperature comfort is a very important part of user riding comfort. The seat ventilation function in hot weather can greatly improve the user's car experience. The currently commonly used ventilation function is to arrange ventilation pads and ventilation holes in the area where the passengers sit, so that air circulation is brought in through the holes punched in the fabric, and the area where the passengers are in contact with the seat is cooled. However, after the user sits in the seat, the fabric holes in the ventilation area are blocked by the user, which greatly hinders the circulation of air and is not conducive to reducing the temperature inside the seat after the vehicle is exposed to the sun; if holes are opened in the non-riding area, the air will be lost from the non-riding area, and the heat in the area where the human body is in contact with the seat cannot be dissipated. Therefore, there is a need for a car seat ventilation system with a high cooling rate and a control method thereof, which can increase the cooling rate of the entire seat and will not cause problems such as air leakage.

[0061] The present invention provides a seat ventilation system 100 .

[0062] See also Figure 1 、 Figure 2 and Figure 3In one embodiment of the present invention, the seat ventilation system 100 is based on a seat frame 1 as a basic mounting structure, and an air outlet structure 2 and an air outlet control structure 11 are fixedly mounted on the seat frame 1. The air outlet structure 2 is a wind pressure supply device for the entire seat ventilation system 100, which is used to generate airflow to achieve the purpose of heat dissipation for the entire seat ventilation system 100. The ventilation structure 3 is arranged on the seat frame 1. The ventilation structure 3 not only supports the human body, but also has two air guide paths in the ventilation structure 3, and the air outlet structure 2 is provided with a first air outlet 224 and a second air outlet 225 corresponding to the two air guide paths. Air vent 225, specifically, the two ends of the first air guide passage are respectively connected to the second air outlet 225 and the air outlet control structure 11, one end of the second air guide passage is connected to the first air outlet 224, and the other end of the second air guide passage is connected to the first air guide passage. Through the setting of the above two air guide passages, two cooling modes can be provided for the seat ventilation system 100. The setting of these two cooling modes is mainly based on the currently commonly used ventilation functions, which are mostly to arrange ventilation pads and ventilation holes in the area where the passengers sit, and to bring air circulation through the holes punched in the fabric to cool the area where the passengers come into contact with the seat. In the above method, after the user sits, the fabric holes in the ventilation hole area are blocked by the user. At this time, the air circulation is blocked, which is not conducive to cooling the inside of the seat. After the passenger sits down, the temperature of the seat is still high, and the physical sensation is poor. In this embodiment, when the temperature is high, the internal temperature of the ventilation structure 3 can be effectively lowered first. Specifically, when the seat temperature is high, the air outlet control structure 11 on the seat frame 1 can be opened. At this time, the wind pressure can be output to the ventilation structure 3 through the first air outlet 224. At this time, the air circulating inside the ventilation structure 3 can not only be discharged through the end in contact with the passenger to achieve the ventilation effect, but the heat inside it can also be quickly discharged through the air outlet control structure 11, thereby prompting the interior of the seat to cool down quickly to provide passengers with a good riding experience. When the temperature inside the ventilation structure 3 has dropped to close to the temperature inside the car or lower than the temperature inside the car, at this time, the first air outlet 224 and the air outlet control structure 11 can be closed, and air can be supplied through the second air outlet 225. At this time, the airflow inside the ventilation structure 3 can only be discharged through the end face in contact with the passenger, which can mainly cool the passenger's riding area and achieve better energy-saving effects.

[0063] At the same time, it is taken into account that after the passengers sit down, the holes in the fabric in the ventilation area are blocked by the user, and it is difficult to effectively dissipate the heat in the contact area of ​​the passengers during the operation of the ventilation system. If holes are opened in the non-sitting area, the air will be lost from the non-sitting area, and the heat in the contact area between the human body and the seat will still not be able to dissipate. Taking the above problems into consideration, under the premise that the interior of the seat is ventilated and cooled in the above embodiment, in this embodiment, the structure of the circulation layer 31 that is in contact with the user is further improved. Specifically, the circulation layer 31 includes a first shell 311, and a first flexible filling member 312 filled in the interior of the first shell 311. It can be imagined that in order to improve the passenger's riding experience, soft materials are generally used as a supporting structure, and the first shell 311 is set as a flexible shell. Mainly, a plurality of channel wall structures 3111 are provided on one end face of the first shell 311 corresponding to the seating end. The channel wall structure 3111 bulges upward to form an annular support structure, and the inner side of the annular support structure is connected to the interior of the first shell 311. At the same time, a plurality of guide holes 3112 are provided on the arc-shaped outer peripheral wall of the channel wall structure 3111. In actual use, when a passenger sits on the circulation layer 31, he or she first contacts the upper end of the channel wall structure 3111. When sitting, he or she presses down the upward end of the channel wall structure 3111. This causes the channel wall structure 3111 to deform. At this time, the multiple air guide holes 3112 are fully opened, and the airflow in the second air outlet 225 enters the first shell 311 and is discharged upward through the multiple air guide holes 3112 on the multiple channel wall structure 3111. During this process, it can be imagined that after the upwardly protruding channel wall structure 3111 is deformed, it also creates a certain support space between the occupant and the first shell 311, which can facilitate the airflow to be discharged from the air guide holes 3112 and effectively dissipate heat to the occupant's seating area. Therefore, the above structure can effectively dissipate heat in the occupant's seating area, improving the cooling and heat dissipation effect when the occupant is sitting. On the other hand, when the occupant is not sitting and the seat temperature is high, the heat can be mainly dissipated to the seat, which also improves energy saving performance. In addition, the first air guide path runs from the second air outlet 225 to the first shell 311, and then to the air outlet control structure 11.

[0064] The ventilation structure 3 also includes an air guide layer 32 and a seat foam 33, wherein the air guide layer 32, the seat foam 33 and the circulation layer 31 are sequentially arranged on the seat frame 1, and the air guide layer 32 is the same as the circulation layer 31, and is also set as a double-layer structure, which includes a second shell 321 and a second flexible filling member 322, wherein, in the air flow, the air flow enters the second shell 321 through the first air outlet 224 and the third connecting pipe 3211, and then enters the multiple second air guide holes on the seat foam 33 through the multiple first air guide holes 3212 on the upper end of the second shell 321. 331, the airflow in the second air guide hole 331 enters the first shell 311 through the first connecting hole 3113 on the lower end of the first shell 311. The above-mentioned air flow path corresponds to the second air guide path, and the second air guide path is connected to the first shell 311 from the overall bottom position of the seat ventilation system 100 upward. When the seat ventilation system 100 is actually cooled, the airflow can cover the entire seating area of ​​the seat ventilation system 100 as much as possible, which can effectively promote the discharge of internal heat of the seat ventilation system 100 and achieve an efficient cooling effect for the entire seat.

[0065] In order to enhance the riding experience of the entire seat, the first shell 311 and the second shell 321 are both set to soft plastic, and the first flexible filling piece 312 and the second flexible filling piece 322 are both set to soft loose structures. The soft loose structure includes various sponges, which have hole structures of different sizes inside, which can provide a certain degree of support while also meeting excellent air circulation effects.

[0066] The air outlet structure 2 mainly includes a fan 21 and an air distribution pipe 22. The fan 21 is installed on the seat frame 1. The output end of the fan 21 is connected to the air inlet pipe portion 221 of the air distribution pipe 22. There are also two air outlet pipe portions 222 connected to the air inlet pipe portion 221. The first air outlet 224 and the second air outlet 225 respectively correspond to the first air outlet pipe portion 222 and the second air outlet pipe portion 222 at one end away from the air inlet pipe portion 221. During actual operation, one of the two air outlet pipes 222 will be connected according to different heat dissipation conditions to supply air. During this process, one of the two air outlet pipes 222 will be blocked by a windshield structure 223 provided at the connection between the two air outlet pipes 222. The windshield structure 223 includes a baffle 2231 rotatably mounted on the air distribution pipe 22. The mounting shaft of the baffle 2231 is connected to a corresponding driving element (not shown in the figure) to drive the baffle 2231 to rotate, thereby achieving the effect of blocking one of the two air outlet pipes 222. It is conceivable that, in addition to the above mechanical structure, corresponding electric control valve structures can also be provided on the two air outlet pipes 222 at the same time, and the opening and closing of the corresponding air outlet pipe 222 can be controlled by the on-off switching of the electric control valve. The specific structure can be determined according to actual production data.

[0067] In the above embodiment, there are two heat dissipation modes. When the seat temperature is high, the air circulation in the seat is increased to remove the heat in the seat as quickly as possible and reduce the seat temperature. When the seat temperature drops, the air circulation is locked in the contact area between the user and the seat to improve the cooling effect. The two modes are realized by the same fan 21, so the structure is simple and the cost is low.

[0068] The first shell 311 is provided with a first connecting pipe 3114 and a second connecting pipe 3115 at two opposite ends in the horizontal direction. As described above, the air outlet control structure 11 can also control the opening and closing effects of the gas flow path. Specifically, the air outlet control structure 11 includes an air outlet pipe 111 and a baffle structure 112. The air outlet pipe 111 is mounted on the seat frame 1, and one end thereof is connected to the second connecting pipe 3115. The airflow from the second air outlet 225 enters the first shell 311 through the first connecting pipe 3114. When the actual seat temperature is low, the baffle structure 112 blocks the air outlet pipe 111, and the airflow in the first shell 311 can only be discharged outward at the multiple channel wall structures 3111, thereby cooling the passenger seating area. When the seat temperature is high, the baffle structure 112 opens the air outlet 111 , and air enters through the first air outlet 224 . The heat inside the seat is quickly discharged through the air outlet 111 , achieving efficient cooling of the seat.

[0069] In order to further enhance the overall comfort of the seat and increase its aesthetic appearance, a soft foam layer 4 is provided on the outside of the first shell 311 and the seat foam 33, and a face cover 5 is provided on the soft foam layer 4, and the face cover 5 is provided with a plurality of through holes corresponding to the seating end (not shown in the figure). The plurality of through holes mainly serve the purpose of ventilation and are generally set as small round holes. At the same time, a temperature sensor 7 is provided inside the seat foam 33 for obtaining the real-time internal temperature of the seat. A control box 8 is also provided on the seat frame 1 for collecting real-time data of the temperature sensor 7.

[0070] The present invention also provides a seat ventilation system control method, which is applicable to the seat ventilation system 100 described above. The specific structure of the seat ventilation system 100 is similar to that of the above-mentioned embodiment. Therefore, the present control method at least has all the beneficial effects brought about by the technical solutions of the above-mentioned embodiment, and will not be described in detail here. The seat ventilation system control method includes the following specific control steps:

[0071] Set the temperature standard value;

[0072] First, it is necessary to set a reference value for the seat temperature, that is, a standard temperature value, which is generally set according to human body temperature. In this embodiment, it is set to 36°C.

[0073] Under the condition that the seat ventilation system 100 is turned on, respectively obtaining a current seat temperature value of the seat ventilation system 100 and a current vehicle interior temperature value;

[0074] Turn on the seat ventilation system 100 and synchronously obtain the current seat temperature value and the current vehicle interior temperature value. The real-time seat temperature value can be obtained through the temperature sensor 7, and then the real-time temperature in the vehicle is obtained through another temperature sensor 7 installed in the vehicle. Then, the two temperature sensors 7 respectively transmit the corresponding real-time temperatures to the control box 8.

[0075] Comparing the seat temperature value with the temperature standard value and the vehicle interior temperature value, and controlling the seat ventilation system 100 to start cooling mode 1 or cooling mode 2 according to the comparison result;

[0076] The control box 8 is provided with a corresponding calculation program and a corresponding control system. After the control box 8 obtains the corresponding real-time temperature in the vehicle and the corresponding real-time temperature of the seat, it will compare the seat temperature value with the temperature standard value and the temperature value in the vehicle, and control the seat ventilation system 100 to turn on cooling mode 1 or cooling mode 2 based on the relevant comparison results.

[0077] To start the cooling mode 1, the fan 21 needs to be started, the first air outlet 224 is opened, the second air outlet 225 is closed, and the baffle structure 112 in the air outlet pipe 111 is controlled to open;

[0078] During this process, the airflow provided by the fan 21 can flow upward through the air guide layer 32 in sequence, and can dissipate heat outward through the air outlet pipe 111, thereby improving the air circulation in the seat and facilitating rapid cooling of the seat.

[0079] To start the cooling mode 2, the fan 21 needs to be started, the first air outlet 224 needs to be closed, the second air outlet 225 needs to be opened, and the baffle structure 112 in the air outlet pipe 111 needs to be closed.

[0080] The second cooling mode is mainly used when the seat temperature is low. After the air outlet duct 111 is closed, the airflow can be concentrated on the parts that the occupants touch for discharge, which is beneficial to the centralized cooling of the occupants' seating positions. Not only is the cooling concentrated, it can achieve better results, and it can also achieve the purpose of energy conservation and emission reduction.

[0081] According to the comparison result, controlling the seat ventilation system 100 to start the cooling mode 1 or the cooling mode 2 includes:

[0082] When the seat temperature is higher than one of the standard temperature and the vehicle interior temperature, cooling mode 1 is activated;

[0083] Specifically, the above structure shows that cooling mode 1 can achieve efficient seat cooling. The standard temperature value is set to 36°C, which is slightly higher than the optimal body temperature for a normal person. When the actual seat temperature is higher than the standard temperature value and the actual vehicle interior temperature, efficient seat cooling is required, and cooling mode 1 is activated. When the seat temperature is lower than the vehicle interior temperature, cooling mode 2 is simply activated to dissipate heat from the passenger seating area.

[0084] Furthermore, the seat ventilation system control method involves a continuous monitoring process, requiring continuous monitoring of the seat temperature and the vehicle interior temperature. When the relevant temperatures change and satisfy the aforementioned comparison relationship, the first cooling mode and the second cooling mode can be automatically switched. Therefore, based on the comparison result, controlling the seat ventilation system 100 to activate cooling mode one or cooling mode two further includes:

[0085] When the cooling mode 1 is turned on and the seat temperature is lower than the vehicle interior temperature, the cooling mode 1 is switched to the cooling mode 2;

[0086] When the cooling mode 2 is turned on and the seat temperature value is higher than the vehicle interior temperature value, the cooling mode 2 is switched to the cooling mode 1.

[0087] Therefore, the control method proposed in this solution can continuously monitor the temperature of the seats and the interior of the vehicle and select the appropriate ventilation mode. After the vehicle is left in a high-temperature environment, a large amount of heat accumulates in the vehicle and seats. After opening the windows or turning on the air conditioner, the interior temperature can drop rapidly. At this time, Cooling Mode 1 is used to quickly lower the temperature of the seats to match the interior temperature of the vehicle. After that, the system switches to Cooling Mode 2 and continuously monitors the temperature. During driving, because the air conditioner is continuously running, the interior temperature remains low. However, the occupants' body heat continues to rise, causing the temperature inside the seats to rise. When the temperature inside the seats exceeds the interior temperature of the vehicle, the system switches to Cooling Mode 1. This cycle continues, ensuring good ventilation and a comfortable temperature experience.

[0088] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made by utilizing the contents of the present invention's description and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A seat ventilation system, characterized in that: include: A seat frame, wherein the seat frame is provided with an air outlet control structure, and the air outlet control structure can be opened or closed; An air outlet structure is installed on the seat frame, and a first air outlet and a second air outlet are provided on the output end of the air outlet structure; and The ventilation structure is provided on the seat frame, and the ventilation structure is provided with a first air guide passage and a second air guide passage. The two ends of the first air guide passage are respectively connected to the second air outlet and the air outlet control structure, one end of the second air guide passage is connected to the first air outlet, and the other end of the second air guide passage is connected to the first air guide passage.

2. The seat ventilation system according to claim 1, characterized in that: The end of the ventilation structure away from the seat frame is the seating end; The ventilation structure includes a circulation layer, and the circulation layer includes: A first housing, having a plurality of upwardly convex channel wall structures on one end portion corresponding to the seating end, wherein a plurality of guide holes are provided on a peripheral wall of the channel wall structure for conducting air between the inner and outer sides of the first housing; and a first flexible filling member, filling the inner cavity of the first shell; Two opposite ends of the first shell in the horizontal direction are respectively connected to the second air outlet and the air outlet control structure to form the first air guiding passage.

3. The seat ventilation system according to claim 2, characterized in that: A plurality of first connection holes are provided on a side of the first shell away from the seating end; The ventilation structure further comprises: an air guide layer comprising a second outer shell and a second flexible filling member, wherein the second outer shell is disposed on the seat frame, a third connecting pipe is disposed at one end of the second outer shell, the third connecting pipe is connected to the first air outlet, and a plurality of first air guide holes are disposed at the upper end of the second outer shell, and the second flexible filling member is filled in the second outer shell; and a seat foam provided on the second shell, and having a plurality of second air guide holes formed on the seat foam, wherein both ends of the second air guide holes are respectively connected to the first air guide holes and the first connecting hole to form the second air guide passage; The first shell is arranged on the upper end surface of the seat foam.

4. The seat ventilation system according to claim 3, characterized in that: The first shell and the second shell are both made of soft plastic; and / or, The first flexible filling piece and the second flexible filling piece are both configured as soft and loose structures.

5. The seat ventilation system according to claim 3, characterized in that: The air outlet structure includes: a fan mounted on the seat frame; and The air distribution duct includes an air inlet duct portion, two air outlet duct portions, and a wind shield structure, wherein one end of the air inlet duct portion is connected to the air outlet end of the fan, and one end of each of the two air outlet duct portions is connected to the air inlet duct portion. The wind shield structure is provided at the external connection of the two air outlet duct portions and is used to block one of the two air outlet duct portions. The first air outlet and the second air outlet respectively correspond to the first air outlet pipe portion and one end of the second air outlet pipe portion away from the air inlet pipe portion.

6. The seat ventilation system according to claim 3, wherein: A first connecting pipe and a second connecting pipe are respectively provided at two opposite ends of the first shell in the horizontal direction; The air outlet control structure includes: an air outlet duct mounted on the seat frame; and a baffle structure, provided inside the air outlet duct, for controlling the opening and closing of the air outlet duct; The first connecting pipe and the second connecting pipe are connected to the second air outlet and one end of the air outlet pipe respectively.

7. The seat ventilation system according to claim 3, wherein: The first shell and the outer side of the seat foam are both provided with a soft foam layer, a face cover is provided on the soft foam layer, and the face cover is provided with a plurality of through holes corresponding to the seating end; and\or, A temperature sensor is provided inside the seat foam; and / or, A control box is also provided on the seat frame.

8. A control method for a seat ventilation system, applied to the seat ventilation system according to any one of claims 1 to 7, characterized in that: The control method of the seat ventilation system includes the following control steps: Set the temperature standard value; Under the condition that the seat ventilation system is turned on, respectively obtaining a current seat temperature value of the seat ventilation system and a current vehicle interior temperature value; comparing the seat temperature value with the temperature standard value and the vehicle interior temperature value, and controlling the seat ventilation system to open cooling mode 1 or cooling mode 2 according to the comparison result; Among them, turning on the cooling mode 1 requires starting the fan, opening the first air outlet, closing the second air outlet, and controlling the baffle structure in the air outlet duct to open; To start the cooling mode 2, the fan needs to be started, the first air outlet is closed, the second air outlet is opened, and the baffle structure in the air outlet duct is controlled to be closed.

9. The control method of the seat ventilation system according to claim 8, characterized in that: According to the comparison result, controlling the seat ventilation system to start cooling mode 1 or cooling mode 2 includes: When the seat temperature is higher than one of the standard temperature and the vehicle interior temperature, cooling mode 1 is activated; When the seat temperature is lower than the vehicle interior temperature, cooling mode 2 is activated.

10. The control method of the seat ventilation system according to claim 9, characterized in that: According to the comparison result, controlling the seat ventilation system to start cooling mode 1 or cooling mode 2 also includes: When the cooling mode 1 is turned on and the seat temperature is lower than the vehicle interior temperature, the cooling mode 1 is switched to the cooling mode 2; When the cooling mode 2 is turned on and the seat temperature value is higher than the vehicle interior temperature value, the cooling mode 2 is switched to the cooling mode 1.

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