A seat ventilation system and a vehicle seat

Abstract

The application discloses a seat ventilation system and an automobile seat. The ventilation system comprises a fan mechanism, a first connecting piece, a second connecting piece, a seat ventilation structure and a driving mechanism. The fan mechanism is provided with an air inlet for absorbing air volume and an air outlet for discharging air volume. The first connecting piece is provided with a first connecting port and a second connecting port in communication with the first connecting port. When the first connecting piece is switched to an air inlet working position, the first connecting port is in communication with the air inlet. When the first connecting piece is switched to an air outlet working position, the first connecting port is in communication with the air outlet. The driving mechanism is connected with the first connecting piece and is used for driving the first connecting piece to be switched to the air inlet working position or the air outlet working position. The second connecting piece is a foldable structure, the first end of the second connecting piece is in communication with the second connecting port, and the seat ventilation structure is in communication with the second end of the second connecting piece. The ventilation system has the functions of air suction and air blowing, has a simple and ingenious structure, has a low space occupancy rate and is convenient to control.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of automobiles, in particular to a seat ventilation system and an automobile seat. BACKGROUND

[0002] With the development of science and technology in the field of vehicle transportation, people have higher and higher requirements for the comfort of vehicle seats. Because the human body is in close contact with the seat, the air does not circulate, which is not conducive to the discharge of sweat, making the human body feel uncomfortable. The ventilation function effectively improves the air circulation between the human body and the seat, making the human body feel dry and comfortable.

[0003] In the prior art, the ventilation function is usually integrated on the seat, and the ventilation mechanism is used to blow air to the surface of the seat or to suck air from the surface of the seat to achieve cooling and air circulation. However, in the blowing mode, it is easy to blow the cold and wet air to the human body, and the human body is prone to discomfort in the waist and back after long-term use. In the suction mode, the cooling efficiency is low, and it takes a long time to achieve the cooling effect. A single fan cannot be arranged in both blowing and suction modes on a seat. SUMMARY

[0004] In view of the above defects or deficiencies in the prior art, it is desirable to provide a seat ventilation system and an automobile seat that can solve the above technical problems.

[0005] In a first aspect, the present application provides a seat ventilation system, comprising:

[0006] a fan mechanism, the fan mechanism having an air inlet for absorbing air volume and an air outlet for discharging air volume;

[0007] a first connecting piece, the first connecting piece having a first connecting port and a second connecting port in communication with the first connecting port, the first connecting piece having an air inlet station and an air outlet station; when the first connecting piece is switched to the air inlet station, the first connecting port is in communication with the air inlet; when the first connecting piece is switched to the air outlet station, the first connecting port is in communication with the air outlet;

[0008] at least one driving mechanism, the driving mechanism being connected with the first connecting piece for driving the first connecting piece to switch to the air inlet station or the air outlet station;

[0009] a second connecting piece, the second connecting piece being a flexible space bag body.

[0010] a seat ventilation structure, the seat ventilation structure being in communication with a second end of the second connecting piece for seat ventilation.

[0011] According to the technical scheme provided by the embodiments of the present application, the second connecting piece is a flexible space bag body.

[0012] According to the technical scheme provided in the embodiment of the present application, the second connecting piece is in a tubular structure, and the material of the second connecting piece is flexible.

[0013] According to the technical scheme provided in the embodiment of the present application, the seat ventilation structure is provided with a mounting hole, and the mounting hole is used for communication with the second end of the second connecting piece.

[0014] According to the technical scheme provided in the embodiment of the present application, the seat ventilation structure comprises a ventilation unit, the ventilation unit comprises at least one of a wind bag, a three-dimensional knitted mesh cloth and a wind guide groove, the ventilation unit has a ventilation cavity, and the mounting hole is in communication with the ventilation cavity.

[0015] According to the technical scheme provided in the embodiment of the present application, the ventilation unit is arranged on the side of the seat foam close to the human body, the seat foam is arranged on the seat body, a through hole is arranged on the seat foam, the opening of the through hole on the side close to the human body is in communication with the mounting hole, and the opening of the through hole on the side away from the human body is in communication with the second end of the second connecting piece.

[0016] According to the technical scheme provided in the embodiment of the present application, the ventilation unit is arranged on the side of the seat foam away from the human body, the seat foam is arranged on the seat body, and a through hole is arranged on the seat foam; the ventilation unit is provided with a plurality of ventilation holes, the ventilation holes are in communication with the ventilation cavity; the mounting hole is arranged on the side of the ventilation unit close to the seat framework, the ventilation holes are arranged on the side of the ventilation unit close to the seat foam, the ventilation holes are arranged correspondingly to the through holes, and the ventilation holes are in communication with the opening of the through holes on the side away from the human body.

[0017] According to the technical scheme provided in the embodiment of the present application, the air inlet and the air outlet are arranged in a straight line, the driving mechanism comprises a second driving device arranged on the fan mechanism, the second driving device drives the first connecting piece to slide along the straight line, so as to adjust the communication between the first connecting piece and the air inlet or the air outlet.

[0018] According to the technical scheme provided in the embodiment of the present application, the edges of the air inlet and the air outlet are arranged in an arc line, the driving mechanism comprises a first driving device arranged on the fan mechanism, the first driving device drives the first connecting piece to rotate along the arc line, so as to adjust the communication between the first connecting piece and the air inlet or the air outlet.

[0019] According to the technical scheme provided in the embodiment of the present application, the seat ventilation system further comprises a control module, and the control module is used for: controlling the driving mechanism to drive the first connecting piece to switch to the air inlet station or the air outlet station.

[0020] According to the technical scheme provided in the embodiment of the present application, the control module is specifically configured to: in response to a manual control signal, control the driving mechanism to drive the first connecting member to switch to the air inlet working position or the air outlet working position.

[0021] According to the technical scheme provided in the embodiment of the present application, the control module is specifically configured to: in response to a manual control signal, control the driving mechanism to drive the first connecting member to switch to the air inlet working position or the air outlet working position.

[0022] The control module is specifically configured to:

[0023] in response to an automatic control signal, receive temperature and humidity data detected by the sensing module;

[0024] when the temperature is greater than or equal to a first threshold value and / or the humidity is greater than or equal to a second threshold value, control the driving mechanism to drive the first connecting member to switch to the air inlet working position;

[0025] when the temperature is less than the first threshold value and / or the humidity is less than the second threshold value, control the driving mechanism to drive the first connecting member to switch to the air outlet working position.

[0026] The second aspect of the present application provides an automobile seat, comprising a seat cushion, a backrest, and a seat ventilation system as described above arranged on the seat cushion and / or the backrest.

[0027] The present application has the beneficial effects that: by controlling the driving mechanism to drive the first connecting member to switch to the air inlet working position, at this time, the first connecting port is in communication with the air inlet; the fan mechanism is turned on, and the system is switched to the air suction mode, that is, air from the seat surface close to the human body (the seat surface in contact with the human body) is sequentially introduced to the first connecting port along the seat ventilation structure, the second connecting member, and then discharged to the seat surface away from the human body through the first connecting member, the air inlet, the fan mechanism, and the air outlet; by controlling the driving mechanism to drive the first connecting member to switch to the air outlet working position, at this time, the first connecting port is in communication with the air outlet; the fan mechanism is turned on, and the system is switched to the air blowing mode, that is, air from the seat surface away from the human body is introduced to the first connecting port through the fan mechanism and the air outlet, and then sequentially blown to the seat surface close to the human body (the seat surface in contact with the human body) along the first connecting member, the second connecting member, and the seat ventilation structure; wherein the second connecting member is arranged in a foldable structure, thereby ensuring stable switching of the first connecting member when switching between the working positions; the seat ventilation system first discards the traditional ventilation mode (i.e., the single air blowing and suction mode), and instead combines the air blowing and suction modes, so that the fan can perform air suction during use, so that the wet and cold air is discharged, and then air blowing is performed to avoid discomfort of the human body; secondly, the structure is optimized, so that the fan has the functions of air suction and blowing, and has the advantages of simple and ingenious structure, low space occupancy, and easy control. BRIEF DESCRIPTION OF DRAWINGS

[0028] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0029] Figure 1 This application provides a structural schematic diagram of a seat ventilation system;

[0030] Figure 2 for Figure 1 A side view of the seat ventilation system shown.

[0031] Figure 3 for Figure 1 The diagram shows the structure of the second connector 4.

[0032] Figure 4 for Figure 1 The diagram shown illustrates a structure where the second connector 4 is configured as a bellows.

[0033] Figure 5 A car seat provided in this application;

[0034] Figure 6 for Figure 5 A magnified view of part B shown;

[0035] Figure 7 for Figure 5 The diagram shows the structure of a car seat ventilation system switched to blowing mode.

[0036] Figure 8 for Figure 7 A magnified view of part C shown;

[0037] Figure 9 for Figure 1 A schematic diagram of the separation structure between the housing 5 and the first connecting member 3 is shown.

[0038] Figure 10 for Figure 9 The schematic diagram shows the structure with the mounting slot located in the middle position.

[0039] Figure 11 for Figure 10 The diagram shows the structure in which the first connector 3 is connected to the air inlet 1.

[0040] Figure 12 for Figure 10 A schematic diagram of the exploded structure;

[0041] Figure 13 for Figure 9 The diagram shows the structure in which the first connector 3 is connected to the air outlet 2.

[0042] Figure 14 for Figure 9The diagram shows the structure in which the first connector 3 is connected to the air inlet 1.

[0043] Figure 15 for Figure 13 A schematic diagram of the exploded structure;

[0044] Figure 16 for Figure 15 A magnified view of part D shown;

[0045] Figure 17 for Figure 15 A schematic diagram of the structure of the intermediate shell 52 shown;

[0046] Figure 18 This is a schematic diagram of a fan mechanism employing a rotating blowing and suction structure;

[0047] Figure 19 for Figure 18 The diagram shows the structure in which the first connector 3 is connected to the air inlet 1.

[0048] Figure 20 for Figure 18 A schematic diagram of the exploded structure;

[0049] Figure 21 for Figure 20 A schematic diagram of the rack structure 33 shown;

[0050] Figure 22 A schematic diagram of the structure in which the second connector 4 is installed inside the air bag 8;

[0051] Figure 23 A schematic diagram of a ventilation unit configured as an air guide channel 801;

[0052] Figure 24 A schematic diagram of a ventilation unit constructed from three-dimensional knitted mesh fabric 802;

[0053] Figure 25 A schematic diagram showing the structure of the air bag 8 installed on the side of the seat foam 10 closest to the human body;

[0054] Figure 26 for Figure 25 An enlarged view of the seat cushion shown;

[0055] Figure 27 for Figure 26 The diagram shown illustrates the state when the device is switched to the suction station.

[0056] Figure 28 A schematic diagram showing the structure in which the air guide groove 801 is located on the side of the seat foam 10 away from the human body;

[0057] Figure 29 for Figure 28 An enlarged view of the seat cushion shown;

[0058] Figure 30 For Figure 29 The state diagram of the state of switching to the air suction work station is shown.

[0059] Reference numerals in the drawings:

[0060] 1, air inlet; 2, air outlet; 3, first connecting piece; 31, first connecting port; 32, second connecting port; 33, rack structure; 34, worm gear; 35, worm; 4, second connecting piece; 41, connecting unit; 42, first interface; 43, second interface; 44, adapter; 5, shell; 51, lower shell; 510, sliding groove; 52, middle shell; 520, hole; 521, lower recess; 53, upper shell; 6, fan blade; 61, air inlet part; 62, air outlet part; 610, air inlet channel; 620, air outlet channel; 71, first driving device; 72, mounting space; 73, upper plate; 74, second motor; 75, lead screw; 76, sliding block; 77, driving shell; 78, guide rod; 79, matching structure; 8, air bag; 81, mounting hole; 82, ventilation hole; 801, air guide groove; 802, three-dimensional knitted mesh fabric; 803, sealing layer; 9, mounting groove; 91, second driving device; 10, seat foam; 101, through hole; 102, soft layer. DETAILED DESCRIPTION

[0061] The application will be further described below in conjunction with the drawings and examples. It should be understood that the specific examples described herein are intended to be illustrative only and are not limiting of the application. In addition, it should be noted that, for the sake of brevity, only the portions of the drawings that are necessary for an understanding of the application will be described.

[0062] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0063] Reference should be made to Figures 1-2 A structure diagram of a seat ventilation system provided by the present application, comprising:

[0064] A fan mechanism, the fan mechanism having an air inlet 1 for absorbing air volume and an air outlet 2 for discharging air volume;

[0065] A first connecting piece 3, the first connecting piece 3 having a first connecting port 31 and a second connecting port 32 in communication with the first connecting port 31 (for reference Figure 9The first connecting piece 3 has an air inlet position and an air outlet position; when the first connecting piece 3 is switched to the air inlet position, the first connecting port 31 is in communication with the air inlet port 1; when the first connecting piece 3 is switched to the air outlet position, the first connecting port 31 is in communication with the air outlet port 2;

[0066] At least one driving mechanism, which is connected with the first connecting piece 3, is used to drive the first connecting piece 3 to switch to the air inlet position or the air outlet position;

[0067] The second connecting piece 4 is a foldable structure, and a first end of the second connecting piece 4 is in communication with the second connecting port 32;

[0068] A seat ventilation structure, which is in communication with a second end of the second connecting piece 4, is used for seat ventilation.

[0069] It can be understood that when the first connecting piece 3 is in the air inlet position, the first connecting port 31 is in communication with the air inlet port 1, so that the air flow in the seat ventilation structure flows from the air inlet port 1 to the fan mechanism and is discharged from the air outlet port 2; when the first connecting piece 3 is in the air outlet position, the first connecting port 31 is in communication with the air outlet port 2, so that the air flow in the fan mechanism flows to the seat ventilation structure;

[0070] In the prior art, a ventilation function is usually integrated on a seat, and a ventilation mechanism is used to blow air to the surface of the seat or suck air from the surface of the seat to achieve cooling and air circulation. However, in the blowing mode, it is easy to blow the cold and wet air to the human body, and the human body is prone to discomfort in the waist and back after long-term use; in the sucking mode, the cooling efficiency is low, and it takes a long time to achieve the cooling effect; a single fan cannot be arranged in the blowing and sucking modes at the same time.

[0071] Therefore, the present application discloses a seat ventilation system which first discards the traditional ventilation mode (i.e., the single blowing and sucking mode), and combines the blowing and sucking modes, so that the fan can perform the sucking process to discharge the cold and wet air, and then perform the blowing process to avoid the discomfort of the human body; secondly, the structure is optimized, so that the fan has the functions of sucking and blowing, and has the advantages of simple structure, low space occupancy and convenient control.

[0072] The working principle of the seat ventilation system provided in the present application is as follows:

[0073] The first connecting piece 3 is switched to the air inlet position by controlling the driving mechanism, at this time, the first connecting port 31 is in communication with the air inlet port 1, as shown in FIG. 2; Figure 11 、 Figure 14 、 Figure 19As shown in the figure; turn on the fan mechanism, the system switches to the air suction mode, that is, the air from the seat surface close to the human body (the surface of the seat in contact with the human body) is sequentially introduced into the first connecting port 31 along the seat ventilation structure, the second connecting member 4, and then discharged to the seat surface away from the human body through the first connecting member 3, the air inlet 1, the fan mechanism, and the air outlet 2.

[0074] By controlling the driving mechanism to drive the first connecting member 3 to switch to the air outlet station, at this time the first connecting port 31 is in communication with the air outlet 2, as shown in the figure. Figure 10 、 Figure 13 、 Figure 18 As shown in the figure; turn on the fan mechanism, the system switches to the air suction mode, that is, the air from the seat surface close to the human body (the surface of the seat in contact with the human body) is sequentially introduced into the first connecting port 31 along the seat ventilation structure, the second connecting member 4, and then discharged to the seat surface away from the human body through the first connecting member 3, the air inlet 1, the fan mechanism, and the air outlet 2.

[0075] Among them, the second connecting member 4 is arranged as a foldable structure, thereby ensuring that the first connecting member 3 realizes stable switching when switching between stations.

[0076] As can be seen from the above, the use of a single fan in the system realizes both blowing and air suction modes, that is, by the cooperation of the fan mechanism, the first connecting member 3, the second connecting member 4, the driving mechanism, and the seat ventilation structure, the air path relationship between the fan mechanism input and output to the seat ventilation structure is switched, and only one fan mechanism is needed to realize the air suction and blowing functions, which is simple in structure, low in space occupancy, and easy to control.

[0077] More importantly, the seat ventilation system combines the air suction mode and the air blowing mode, can first extract the wet and cold air, and then blow the air; on the basis of improving the air circulation between the seat surface and the human body, reduces the influence of the wet and cold air on the human body, avoids the human body (especially the waist and back) from being uncomfortable, and improves the comfort of the passenger. In the above process, the system can also be controlled to continuously switch between the air suction mode and the air blowing mode (control the first connecting member 3 to continuously switch between the air inlet station and the air outlet station), further avoiding the wet and cold air from being immersed in the human body for a long time.

[0078] In some embodiments, the second connecting member 4 is a flexible space bag body, in order to facilitate the implementation and understanding of those skilled in the art, specific examples are used for illustration:

[0079] 1. The flexible space bag body includes a plurality of connected units 41 connected in sequence and a flexible bag body covering the outside, wherein the middle part of the connecting unit 41 is provided with an air path (that is, the middle part has a supporting space, and the wind resistance is small), and the two ends are provided with hinge structures for hinging with adjacent connecting units. The plurality of connecting units 41 are sequentially hinged at the head and tail (as shown in the figure). Figure 3As shown), this forms a chain air duct between the various air ducts, thereby ensuring the smooth flow of air in both workstation states and during the switching process; furthermore, the first end of the connecting unit 41 is provided with a first interface 42 for connecting to the second connecting port 32, and the second end of the connecting unit 41 is provided with a second interface 43 for connecting to the seat ventilation structure.

[0080] The flexible bag can be integrated with the seat ventilation structure (e.g., air bag 8) or installed independently. For example, Figure 22 As shown, the second connector 4 is disposed inside the air bag 8.

[0081] 2. The flexible space bag includes a three-dimensional knitted mesh fabric or breathable sponge with pressure-bearing and air-guiding functions, or a plastic or rubber component with multiple pores, and a flexible bag body covering its exterior; the three-dimensional knitted mesh fabric, breathable sponge, plastic or rubber component mentioned above is more flexible than the connecting unit 41, and is easier to switch workstations.

[0082] The flexible bag can be integrated with the seat ventilation structure (e.g., air bag 8) or set up independently.

[0083] 3. The flexible space bag includes a flexible bag covered with the above-mentioned air-guiding and pressure-bearing material (such as three-dimensional knitted mesh or breathable sponge or plastic or rubber parts with multiple pores) and the connecting unit 41; the flexible bag can be integrated with the seat ventilation structure (such as air bag 8) or set independently.

[0084] 4. The flexible space bag body may include a combination of two or more structures as described in Specific Examples 1 to Specific Examples 3 above.

[0085] Of course, the above examples are only for further illustration of several implementation methods of flexible space bags, and are not intended to limit them;

[0086] In other embodiments, such as Figure 4 As shown, the second connector 4 is a tubular structure made of a flexible material. For example, the second connector 4 is a corrugated pipe, a rubber tube, etc. Preferably, the second connector 43 is connected to the seat ventilation structure via an adapter 44.

[0087] In some embodiments, the seat ventilation structure is provided with a mounting hole 81, which is used to communicate with the second end of the second connector 4.

[0088] Further, the seat ventilation structure comprises a ventilation unit, the ventilation unit comprises at least one of a wind bag 8, a three-dimensional knitted mesh cloth and a wind guide groove, the ventilation unit has a ventilation cavity, a plurality of ventilation holes 82 are arranged on the ventilation unit, and the mounting holes 81 and the ventilation holes 82 are communicated with the ventilation cavity; the ventilation unit has a first end face, and the ventilation holes 82 are arranged on the first end face. Preferably, the plurality of ventilation holes 82 are arranged on the first end face.

[0089] For example, the ventilation unit comprises the wind bag 8, the wind bag 8 is internally provided with the ventilation cavity, and the mounting holes 81 and the ventilation holes 82 on the wind bag 8 are communicated with the ventilation cavity; wherein the mounting holes 81 can be arranged on the side surface of the wind bag 8, or can be arranged at any position on the bottom surface of the wind bag 8.

[0090] For example, as shown in the left part of FIG. 8, the ventilation unit comprises the three-dimensional knitted mesh cloth 802 arranged on the seat foam 10, the three-dimensional knitted mesh cloth 802 is externally provided with the sealing layer 803, so that the space enclosed in the sealing layer 803 forms the ventilation cavity; the sealing layer 803 or the corresponding position of the seat foam 10 is provided with the ventilation holes 82 and the mounting holes 81. Figure 24

[0091] For example, as shown in the right part of FIG. 8, the ventilation unit comprises the wind guide groove 801 arranged on the seat foam 10, the seat foam 10 is arranged on the seat body, and the wind guide groove is externally provided with the sealing layer 803, so that the ventilation cavity is formed between the sealing layer 803 and the wind guide groove 801; the sealing layer 803 or the corresponding position of the seat foam 10 is provided with the ventilation holes 82 and the mounting holes 81. Figures 23

[0092] In addition, the ventilation unit can also simultaneously comprise two or three of the wind bag 8, the three-dimensional knitted mesh cloth 802 and the wind guide groove 801.

[0093] In some embodiments, as shown in FIG. 9, the ventilation unit is arranged on the side of the seat foam 10 close to the human body, the seat foam 10 is arranged on the seat body, the seat foam 10 is provided with the through hole 101, the opening of the through hole 101 close to the human body is communicated with the mounting hole 81, and the opening of the through hole 101 away from the human body is communicated with the second end of the second connecting piece 4. Preferably, a soft layer 102 is arranged on the side of the ventilation unit away from the seat foam 10. Wherein the second end of the second connecting piece 4 can be connected with the opening of the through hole 101 away from the human body; of course, the second connecting piece 4 can also pass through the through hole 101 and be connected with the mounting hole 81. Figures 25-27

[0094] In some embodiments, as shown in FIG. 10, the ventilation unit is arranged on the side of the seat foam 10 away from the human body, the seat foam 10 is arranged on the seat body, the seat foam 10 is provided with the through hole 101, the opening of the through hole 101 close to the human body is communicated with the mounting hole 81, and the opening of the through hole 101 away from the human body is communicated with the second end of the second connecting piece 4. Preferably, a soft layer 102 is arranged on the side of the ventilation unit away from the seat foam 10. Wherein the second end of the second connecting piece 4 can be connected with the opening of the through hole 101 away from the human body; of course, the second connecting piece 4 can also pass through the through hole 101 and be connected with the mounting hole 81. Figures 28-30 ​​​As shown, the ventilation unit is arranged on the side of the seat foam 10 away from the human body, the seat foam 10 is arranged on the seat body, and a through hole 101 is formed in the seat foam 10; the ventilation unit is provided with a plurality of ventilation holes 82, the ventilation holes 82 are in communication with the ventilation cavity; the mounting hole 81 is arranged on the side of the ventilation unit close to the seat framework, and the ventilation hole 82 is arranged on the side of the ventilation unit close to the seat foam 10; the ventilation hole 82 is arranged in correspondence with the through hole 101, and is in communication with the opening on the side of the through hole 101 away from the human body. Preferably, the number of the ventilation hole 82 is consistent with that of the through hole 101, and the positions of the ventilation hole 82 and the through hole 101 are arranged in correspondence.

[0095] In some embodiments, as shown in Figures 9-21 The fan mechanism comprises:

[0096] The housing 5, the air inlet 1 and the air outlet 2 are arranged on the housing 5;

[0097] The fan blade 6 is installed in the housing 5; the fan blade 6 has an air inlet part 61 and an air outlet part 62, the air inlet part 61 and the air inlet 1 form an air inlet channel 610, and the air outlet part 62 and the air outlet 2 form an air outlet channel 620.

[0098] Specifically, the fan blade 6 is in a ring structure, the inner ring of the fan blade 6 is the air inlet part 61, and the outer ring of the fan blade 6 is the air outlet part 62; gas enters the fan blade 6 through the air inlet part 61 and is then discharged through the air outlet part 62;

[0099] Specifically, the driving end of the driving mechanism is installed on the housing 5, and the driven end is connected to the first connecting piece 3; in other application scenarios, the positions of the driving end and the driven end of the driving mechanism can also be interchanged.

[0100] In some embodiments, as shown in Figure 12 、 Figure 15 、 Figure 20 The housing 5 comprises a lower housing 51, an intermediate housing 52 and an upper housing 53 arranged in sequence;

[0101] The fan blade 6 is installed on the lower housing 51; the lower housing 51, the air outlet part 62 of the fan blade 6 and the bottom of the intermediate housing 52 form the air outlet channel 620;

[0102] The intermediate housing 52 is provided with a hole 520 in communication with the air inlet part 61 of the fan blade 6; the upper housing 53 and the intermediate housing 52 form the air inlet channel 610.

[0103] Specifically, the lower shell 51, the middle shell 52 and the upper shell 53 can be in a split structure and be fixedly connected through a detachable structure (for example, buckles, screw connections or the like), or can be in an integral structure and be integrally formed.

[0104] Specifically, when the first connecting piece 3 is in the air inlet working position, the first connecting port 31 moves to a position opposite to the air inlet 1; when the first connecting piece 3 is in the air outlet working position, the first connecting port 31 moves to a position opposite to the air outlet 2.

[0105] Specifically, the air inlet 1 can be arranged between the upper shell 53 and the middle shell 52, and the air outlet 2 can be arranged between the middle shell 52 and the lower shell 51; in addition, the positions of the air inlet 1 and the air outlet 2 can also be set according to actual requirements, for example, a guide joint or the like can also be arranged at the air inlet 1 and the air outlet 2 to adjust the positions of the air inlets and outlets, so as to adapt to the position switching mode of the first connecting piece 3 and facilitate the driving mechanism to drive the first connecting piece 3 to switch the air path state.

[0106] Preferably, as shown in Figure 17 Specifically, the middle shell 52 is provided with a recess 521 of 1-5 mm in depth at a position corresponding to the bottom of the air inlet 1, for changing the air direction and balancing the proportion relationship between the air inlets and the air outlets.

[0107] In some embodiments, as shown in Figures 9-15 The air inlets 1 and the air outlets 2 are arranged in a straight line, the driving mechanism includes a second driving device 91 arranged on the fan mechanism, and the second driving device 91 drives the first connecting piece 3 to slide along the straight line, so as to adjust the communication between the first connecting piece 3 and the air inlets 1 or the air outlets 2.

[0108] Specifically, the second driving device 91 has a driving end for driving the first connecting piece 3 to move along the arrangement direction of the air inlets 1 and the air outlets 2; when the first connecting piece 3 moves to the position of the air inlet 1, the air inlet 1 communicates with the first connecting piece 3; when the first connecting piece 3 moves to the position of the air outlet 2, the air outlet 2 communicates with the first connecting piece 3.

[0109] Specifically, the second driving device 91 is, for example, a linear motor, a cylinder, a gas bag body or a memory alloy.

[0110] Further, as shown in Figure 16 The second driving device 91 includes a second motor 74, a lead screw 75 connected to the output end of the second motor 74, and a sliding block 76 threadedly connected to the lead screw 75; the first connecting piece 3 is provided with a matching structure 79 matched with the sliding block 16;

[0111] Further, the second motor 74 is mounted on a driving housing 77, and a guide rod 78 is arranged on the driving housing 77 in parallel with the direction of the lead screw 75, and the sliding block 76 is slidably mounted on the guide rod 78.

[0112] In the embodiment, the shell 5, the connecting member 3, and the second driving device 91 jointly form a sliding air blowing and sucking structure. The position of the connecting member 3 in the mounting groove 4 is adjusted by driving the connecting member 3 to slide in and out, so as to switch the connecting member 3 between the air inlet working position and the air outlet working position.

[0113] In some embodiments, the mounting groove 9 is arranged on the fan mechanism in the arrangement direction of the air inlet 1 and the air outlet 2, and the second driving device 91 is arranged in the mounting groove 9.

[0114] Specifically, as shown in Figure 12 , the mounting groove 9 is arranged through the middle positions of the air inlet 1 and the air outlet 2, and the fixed end of the second driving device 91 is mounted in the mounting groove 9 by screwing or clamping. In other examples, the mounting groove 9 can also be mounted at other positions of the fan mechanism according to actual needs, for example, on both sides of the air inlet 1 and the air outlet 2, as shown in Figure 15 .

[0115] In some embodiments, as shown in Figures 18-21 , the edges of the air inlet 1 and the air outlet 2 are arranged in an arc shape, and the driving mechanism includes a first driving device 71 arranged on the fan mechanism. The first driving device 71 drives the first connecting member 3 to rotate along the arc shape, so as to adjust the communication between the first connecting member 3 and the air inlet 1 or the air outlet 2.

[0116] In the embodiment, the shell 5, the first connecting member 3, and the first driving device 71 jointly form a rotating air blowing and sucking structure. The first driving device 71 is mounted on the shell 5, the output end of the first driving device 71 is connected with the first connecting member 3, the position of the first connecting member 3 relative to the air inlet 1 and the air outlet 2 is adjusted by driving the first connecting member 3 to rotate, and the first connecting member 3 is switched between the air inlet working position and the air outlet working position.

[0117] In some embodiments, as shown in Figures 20-21 , the first connecting member 3 is provided with a rack structure 33, and the first driving device 71 is in transmission connection with the rack structure 33 through a worm wheel 34 and a worm 35.

[0118] Specifically, the first driving device 71 is a first motor, the output end of the first motor is provided with a worm 35, the worm 35 is in transmission connection with the rack structure 33; wherein the fan mechanism is provided with a groove, the groove is detachably provided with an upper plate 73, the upper plate and the groove form an installation space 72 for installing the first motor; one side of the groove is provided with an opening, the worm gear 34 and the worm 35 are connected with the rack structure 33 through the opening.

[0119] In some embodiments, the fan mechanism is provided with a sliding groove 510, and the first connecting piece 3 is slidably arranged in the sliding groove 510.

[0120] In some embodiments, the driving mechanism includes at least one of a motor, a pneumatic cylinder, a pneumatic bag body, and a memory alloy.

[0121] In some embodiments, the seat ventilation system further includes a control module, and the control module is configured to control the driving mechanism to drive the first connecting piece 3 to switch to the air inlet station or the air outlet station.

[0122] In some embodiments, the control module is specifically configured to control the driving mechanism to drive the first connecting piece 3 to switch to the air inlet station or the air outlet station in response to a manual control signal.

[0123] In some examples, the manual control signal includes a first signal, and the control module controls the driving mechanism to drive the first connecting piece 3 to switch to the air inlet station in response to the first signal.

[0124] In some examples, the manual control signal includes a second signal, and the control module controls the driving mechanism to drive the first connecting piece 3 to switch to the air outlet station in response to the second signal.

[0125] In some examples, the manual control signal includes a third signal, and the control module controls the driving mechanism to drive the first connecting piece 3 to switch to the air inlet station in response to the third signal, and controls the driving mechanism to drive the first connecting piece 3 to switch to the air outlet station after a set time.

[0126] In some examples, the manual control signal includes a fourth signal, and the control module controls the driving mechanism to alternately adjust the first connecting piece 3 to switch between the air inlet station and the air outlet station.

[0127] In some embodiments, the seat ventilation system further includes a sensing module, and the sensing module is configured to detect the temperature and humidity in the vehicle.

[0128] The control module is specifically configured to:

[0129] receiving the temperature and humidity data detected by the sensing module in response to the automatic control signal;

[0130] controlling the driving mechanism to drive the first connecting member 3 to switch to the air inlet working position when the temperature is greater than or equal to a first threshold value and / or the humidity is greater than or equal to a second threshold value;

[0131] controlling the driving mechanism to drive the first connecting member 3 to switch to the air outlet working position when the temperature is less than the first threshold value and / or the humidity is less than the second threshold value.

[0132] Embodiment 2

[0133] As Figures 5-8 A structural schematic diagram of an automobile seat is provided for this embodiment, which includes a seat cushion, a backrest, and a seat ventilation system as described above arranged on the seat cushion and / or the backrest.

[0134] In some embodiments, the seat body (seat cushion and backrest) includes a seat framework and a seat foam 10 arranged on the seat framework, the fan mechanism is fixedly installed on a side of the seat framework away from the seat foam 10, the seat ventilation structure is arranged on the seat foam 10, and the first connecting member 3 and the second connecting member 4 connect the seat ventilation structure and the fan mechanism.

[0135] The above description is only the preferred embodiments of the present application and the explanation of the applied technical principles. It should be understood by those skilled in the art that the scope of the invention involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features can be replaced with the technical features disclosed in the present application (but not limited to) having similar functions to form technical solutions.

Claims

1. A seat ventilation system, characterized by, The application relates to a seat ventilation structure, which comprises the following parts: a fan mechanism, a first connecting piece, at least one driving mechanism, and a second connecting piece. The fan mechanism has an air inlet (1) for absorbing air volume and an air outlet (2) for discharging air volume. The first connecting piece (3) has a first connecting port (31) and a second connecting port (32) in communication with the first connecting port (31), and the first connecting piece (3) has an air inlet working position and an air outlet working position. When the first connecting piece (3) is switched to the air inlet working position, the first connecting port (31) is in communication with the air inlet (1). When the first connecting piece (3) is switched to the air outlet working position, the first connecting port (31) is in communication with the air outlet (2). The second connecting piece (4) is a flexible space bag body. The second connecting piece (4) is a tubular structure, and the material of the second connecting piece (4) is a flexible material.

2. The seat ventilation system of claim 1, wherein, The seat ventilation structure is provided with a mounting hole (81) for communication with the second end of the second connecting piece (4).

3. The seat ventilation system of claim 1, wherein, The seat ventilation structure comprises a ventilation unit, and the ventilation unit comprises at least one of an air bag (8), a three-dimensional knitted mesh cloth (802) and a wind guide groove (801).

4. The seat ventilation system of claim 1, wherein, The ventilation unit is arranged on a side of seat foaming (10) close to a human body.

5. The seat ventilation system of claim 4, wherein, The seat foaming (10) is arranged on a seat body.

6. The seat ventilation system of claim 5, wherein, An opening on a side of the through hole (101) close to the human body is in communication with the mounting hole (81). An opening on a side of the through hole (101) away from the human body is in communication with the second end of the second connecting piece (4).

7. The seat ventilation system of claim 5, wherein, The ventilation unit is arranged on the side of the seat foaming (10) away from the human body, the seat foaming (10) is arranged on the seat body, and the seat foaming (10) is provided with a through hole (101); the ventilation unit is provided with a plurality of ventilation holes (82), the ventilation holes (82) are communicated with the ventilation cavity; the mounting hole (81) is arranged on the side of the ventilation unit close to the seat framework, the ventilation hole (82) is arranged on the side of the ventilation unit close to the seat foaming (10), the ventilation hole (82) is arranged corresponding to the through hole (101), and is communicated with the opening on the side of the through hole (101) away from the human body.

8. The seat ventilation system according to any one of claims 1-7, wherein, The control module is further configured to control the driving mechanism to drive the first connecting member (3) to switch to the air inlet position or the air outlet position.

9. The seat ventilation system of claim 8, wherein, The control module is specifically configured to control the driving mechanism to drive the first connecting member (3) to switch to the air inlet position or the air outlet position in response to a manual control signal.

10. The seat ventilation system of claim 9, wherein, The sensing module is further configured to detect the temperature and humidity in the vehicle. The control module is specifically configured to: receive the temperature and humidity data detected by the sensing module in response to an automatic control signal; control the driving mechanism to drive the first connecting member (3) to switch to the air inlet position when the temperature is greater than or equal to a first threshold value and / or the humidity is greater than or equal to a second threshold value; control the driving mechanism to drive the first connecting member (3) to switch to the air outlet position when the temperature is less than the first threshold value and / or the humidity is less than the second threshold value. 11.A car seat, comprising a seat cushion and a backrest, and a seat ventilation system according to any one of claims 1-10 arranged on the seat cushion and / or the backrest.

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