Ventilation structure and ventilation system

Abstract

The utility model relates to the technical field of seat ventilation, in particular to a ventilation structure and a ventilation system. The ventilation structure comprises an air guide assembly, a fastening piece and an elastic sealing piece, a cavity is formed in the air guide assembly, the air guide assembly is provided with a first side face and a second side face which are opposite in the first direction, the first side face of the air guide assembly is provided with a first ventilation opening, and the second side face of the air guide assembly is provided with a second ventilation opening; two ends of the air inlet channel are opened; the air guide assembly and the sealing piece are sequentially arranged in the first direction, and the first ventilation opening, the cavity, the second ventilation opening and the air inlet channel sequentially communicate. The fastener is arranged on the air guide assembly and used for fixing the air guide assembly to the foam of the seat and further used for extruding the sealing piece between the air guide assembly and the foam of the seat. Through the arrangement of the elastic sealing piece, air leakage at the joint of the air guide assembly and the foam can be avoided, and meanwhile abnormal sound caused by air leakage is also avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of seat ventilation, and particularly relates to a ventilation structure and a ventilation system. Background Art

[0002] With the continuous improvement of people's living standards, the requirements for the comfort of car rides are also getting higher and higher. Among them, the ventilation of car seats is an important factor affecting the comfort of car seats. When arranging the ventilation structure for car seats, air bags are often used to transport the air generated by the fans to the air ducts of the foam.

[0003] In the prior art, the air bag is usually fixed to the foam by double-sided tape. When the plane of the foam is uneven, the connection between the air bag and the foam is prone to air leakage. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is: aiming at the problem in the prior art that when the air guiding component is fixed to the foam by double-sided tape and the plane of the foam is uneven, the connection between the air bag and the foam is prone to air leakage, a ventilation structure and a ventilation system are provided.

[0005] To solve the above technical problem, on the one hand, an embodiment of the utility model provides a ventilation structure, including an air guiding component, a fastener and an elastic sealing member. The interior of the air guiding component has a cavity. The air guiding component has a first side surface and a second side surface opposite to each other in a first direction. A first ventilation opening is provided on the first side surface of the air guiding component, and a second ventilation opening is provided on the second side surface of the air guiding component. The interior of the sealing member has an air inlet channel with openings at both ends.

[0006] The air guiding component and the sealing member are arranged in sequence in the first direction. The air guiding component includes an air bag and a support body. The cavity, the first ventilation opening and the second ventilation opening are provided on the air bag. The support body is arranged in the cavity to support the air bag, so that the first ventilation opening, the cavity, the second ventilation opening and the air inlet channel are sequentially communicated.

[0007] The fastener is arranged on the air guiding component, used to fix the air guiding component to the foam of the seat, and also used to squeeze the sealing member between the air guiding component and the foam of the seat.

[0008] Optionally, the sealing member includes a connecting member and an elastic sealing member body. The connecting member is arranged on the sealing member body. The air inlet channel is arranged in the connecting member. The sealing member body has a third side surface and a fourth side surface opposite to each other in the first direction. The third side surface of the sealing member body fits the second side surface of the air guiding component.

[0009] One end of the connecting member is flush with the third side surface of the sealing member body, and the other end extends out of the fourth side surface of the connecting member. In this embodiment, the first direction is preferably the thickness direction of the air guiding component. The air guiding component and the sealing member body are square, or the air guiding component and the sealing member body have a square structure, which can facilitate the third side surface of the sealing member body to fit the second side surface of the air guiding component. At the same time, the connecting member can be integrally formed with the sealing member body, or the connecting member can be separately produced from the sealing member body. The connecting member is fixedly arranged on the sealing member body. The connecting member is tubular and can be a square tube, a round tube or other shapes. The inner hole of the connecting member forms an air inlet channel. Make one end of the connecting member flush with the third side surface of the sealing member body. When the third side surface of the sealing member body fits the second side surface of the air guiding component, the connecting member abuts against the air guiding component, which can prevent air leakage at the connection between the air guiding component and the connecting member; set the other end of the connecting member to extend out of the fourth side surface of the sealing member body. When the sealing member is connected to the foam, the sealing member body is squeezed between the air guiding component and the foam. The fourth side surface of the sealing member body fits the outer surface (B surface) of the foam, and the connecting member can be inserted into the air duct of the foam, which can prevent air leakage at the connection between the connecting member and the foam and reduce abnormal noise.

[0010] Optionally, a plurality of the connecting members are arranged on the sealing member body, and the plurality of connecting members are arranged at intervals. Each air inlet channel of each connecting member communicates with one of the second ventilation openings. In this embodiment, a first ventilation opening is arranged on the air guiding component, and a plurality of second ventilation openings are arranged, so as to accelerate the air flow at the relative position of the seat. The plurality of connecting members can be arranged at equal intervals, or can be arranged at unequal intervals according to the needs of the foam.

[0011] Optionally, the sealing member body is bonded to the air bag. In this embodiment, the sealing member and the air guiding component are separately arranged, and the sealing member body is bonded to the air bag through an adhesive.

[0012] Optionally, the air inlet channel is a circular channel, the second ventilation opening is a round hole, and the aperture of the air inlet channel is larger than the aperture of the second ventilation opening. In this embodiment, when the sealing member body is bonded to the air guiding component, the opening at one end of the air inlet channel that abuts against the air guiding component should completely wrap the second ventilation opening, so as to prevent air leakage at the connection between the air guiding component and the air inlet channel.

[0013] Optionally, the difference between the aperture of the air inlet channel and the aperture of the second ventilation opening is 1 mm to 6 mm.

[0014] Optionally, the air bag is provided with a connecting ear, and the connecting ear is provided with a positioning hole, and the fastener is inserted into the positioning hole.

[0015] Optionally, a plurality of the connecting ears are provided on the air bag, and the plurality of connecting ears are arranged at intervals. The gap between two adjacent connecting ears is 20 mm to 150 mm. In this embodiment, the positioning holes of the connecting ears are through holes, and the fasteners are devices such as C-shaped nails and plastic staples. Through the positioning holes, the fasteners are positioned on the foam. The distances between adjacent connecting ears can be the same or different. The distances between the positioning holes of adjacent connecting ears can be set according to the sealing and air permeability of the sealing member body. If the density is relatively large and the air permeability is relatively low, the positioning gap can be increased, and vice versa. The material of the sealing member body is preferably foam.

[0016] Optionally, the sealing member is a sealed foam, and the fastener includes at least one of a C-shaped nail or a staple. In this embodiment, the material of the sealing member is the same as that of the foam of the seat. The side (the first side) of the air bag for connecting with the sealing member is a TPU film, and the other opposite side (the second side) is non-woven fabric, and the support body is a 3D mesh.

[0017] The ventilation structure provided by the embodiment of the present invention fixes the air guiding component on the foam through the fastener, and uses the fastening force of the fastener to squeeze the elastic sealing member between the air guiding component and the foam. When the plane of the foam for connecting with the air guiding component is uneven due to process or other reasons, the elastic sealing member will bounce up or compress a part at the uneven position of the foam, filling the uneven part of the foam, so that the two opposite sides of the sealing member are respectively attached to the foam and the air guiding component, thereby avoiding air leakage at the connection between the air guiding component and the foam, and also avoiding abnormal noise caused by air leakage. At the same time, during operation, the first ventilation port is connected to the air outlet of the air source (fan). When the air source blows air, the air flow sequentially passes through the air outlet of the air source, the first ventilation port, the cavity, the second ventilation port, and the air inlet channel and blows to the position required by the foam; when the air source sucks air, the air flow at the position required by the foam is sequentially sucked away through the air inlet channel, the second ventilation port, the cavity, the first ventilation port and the air outlet of the air source, thereby ensuring the ventilation of the corresponding position of the seat.

[0018] On the other hand, the embodiment of the present invention provides a ventilation system, including a seat, a foam and the above ventilation structure. The foam is arranged on the seat, and the ventilation structure is arranged on the foam. In this embodiment, the ventilation system further includes an air source arranged on the seat. The air source has an air outlet, and the air outlet of the air source is communicated with the first ventilation port. The air source includes a fan. Description of the Drawings

[0019] Figure 1 is a schematic diagram of a ventilation structure provided by an embodiment of the present invention;

[0020] Figure 2 is a schematic diagram of a ventilation structure provided by another embodiment of the present invention;

[0021] Figure 3 FIG. 2 is a schematic view showing a partial internal structure of the ventilation structure provided by another embodiment of the present utility model;

[0022] Figure 4 FIG. 3 is a schematic view of the internal structure of the air guiding assembly of the ventilation structure provided by another embodiment of the present utility model.

[0023] The reference numerals in the specification are as follows:

[0024] 1. Air guiding assembly; 2. Seal; 3. Air inlet passage; 4. Cavity; 11. Connecting ear; 12. Positioning hole; 13. Air bag; 14. Support body; 21. Connecting piece; 22. Seal main body. Detailed implementation manners

[0025] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0026] As Figures 1 to 4 shown, an embodiment of the present utility model provides a ventilation structure, including an air guiding assembly 1, a fastener and an elastic seal 2. The inside of the air guiding assembly 1 has a cavity 4. The air guiding assembly 1 has a first side surface and a second side surface opposite to each other in a first direction. A first ventilation opening is provided on the first side surface of the air guiding assembly 1, and a second ventilation opening is provided on the second side surface of the air guiding assembly 1. The inside of the seal 2 has an air inlet passage 3, and both ends of the air inlet passage 3 are open;

[0027] The air guiding assembly 1 and the seal 2 are arranged in sequence in the first direction. The air guiding assembly 1 includes an air bag 13 and a support body 14. The cavity 4, the first ventilation opening and the second ventilation opening are provided on the air bag. The support body 14 is arranged in the cavity 4 to support the air bag 13, so that the first ventilation opening, the cavity 4, the second ventilation opening and the air inlet passage 3 are communicated in sequence;

[0028] The fastener is arranged on the air guiding assembly 1, and is used to fix the air guiding assembly 1 on the foam of the seat, and is also used to squeeze the seal 2 between the air guiding assembly 1 and the foam of the seat.

[0029] In one embodiment, the seal 2 includes a connecting piece 21 and an elastic seal main body 22. The connecting piece 21 is arranged on the seal main body 22. The air inlet passage 3 is arranged in the connecting piece 21. The seal main body 22 has a third side surface and a fourth side surface opposite to each other in the first direction. The third side surface of the seal main body 22 is attached to the second side surface of the air guiding assembly 1;

[0030] One end of the connecting member 21 is flush with the third side surface of the seal body 22, and the other end extends out of the fourth side surface of the connecting member 21. In this embodiment, the first direction is preferably the thickness direction of the air guiding assembly 1. The air guiding assembly 1 and the seal body 22 are square, or the air guiding assembly 1 and the seal body 22 have a square structure, which can facilitate the third side surface of the seal body 22 to fit the second side surface of the air guiding assembly 1. At the same time, the connecting member 21 can be integrally formed with the seal body 22, or the connecting member 21 can be separately produced from the seal body 22. The connecting member 21 is fixedly arranged on the seal body 22. The connecting member 21 is tubular and can be a square tube, a round tube or other shapes. The inner hole of the connecting member 21 forms an air inlet passage 3. By making one end of the connecting member 21 flush with the third side surface of the seal body 22, when the third side surface of the seal body 22 fits the second side surface of the air guiding assembly 1, the connecting member 21 abuts against the air guiding assembly 1, which can prevent air leakage at the connection between the air guiding assembly 1 and the connecting member 21; by setting the other end of the connecting member 21 to extend out of the fourth side surface of the seal body 22, when the seal 2 is connected to the foam, the seal body 22 is squeezed between the air guiding assembly 1 and the foam, and the fourth side surface of the seal body 22 fits the outer surface (B surface) of the foam. The connecting member 21 can be inserted into the air duct of the foam, which can prevent air leakage at the connection between the connecting member 21 and the foam and reduce abnormal noise.

[0031] In one embodiment, a plurality of connecting members 21 are arranged on the seal body 22. The plurality of connecting members 21 are arranged at intervals, and each air inlet passage 3 of the connecting member 21 communicates with a second ventilation opening. In this embodiment, a first ventilation opening is arranged on the air guiding assembly 1, and a plurality of second ventilation openings are arranged, which can accelerate the air flow at the relative position of the seat. The plurality of connecting members 21 can be arranged at equal intervals, or can be arranged at unequal intervals according to the needs of the foam.

[0032] In one embodiment, the seal body 22 is bonded to the air bag 13. In this embodiment, the seal 2 and the air guiding assembly 1 are separately arranged, and the seal body 22 is bonded to the air bag 13 through an adhesive.

[0033] In one embodiment, the air inlet passage 3 is a circular passage, the second ventilation opening is a circular hole, and the aperture of the air inlet passage 3 is larger than the aperture of the second ventilation opening. In this embodiment, when the seal body 22 is bonded to the air guiding assembly 1, the opening at one end of the air inlet passage 3 that abuts against the air guiding assembly 1 completely wraps the second ventilation opening, so as to prevent air leakage at the connection between the air guiding assembly 1 and the air inlet passage 3.

[0034] In one embodiment, the difference between the aperture of the air inlet passage 3 and the aperture of the second ventilation opening is 1 mm to 6 mm. An appropriate aperture difference can form a more stable and uniform air flow, and at the same time is also convenient for assembly, avoiding the problem of unsmooth air flow caused by assembly errors.

[0035] In one embodiment, a connecting ear 11 is provided on the air bag 13, and a positioning hole 12 is provided on the connecting ear 11, and a fastener is inserted into the positioning hole 12.

[0036] In one embodiment, a plurality of connecting ears 11 are provided on the air bag 13, and the plurality of connecting ears 11 are arranged at intervals, and the gap between two adjacent connecting ears 11 is 20 mm to 150 mm. In this embodiment, the positioning hole 12 of the connecting ear 11 is a through hole, and the fastener is a device such as a C-shaped nail or a plastic staple. Through the positioning hole 12, the fastener is positioned on the foam. The distance between adjacent connecting ears 11 can be the same or different. The distance between the positioning holes 12 of adjacent connecting ears 11 can be set according to the sealing and air permeability of the sealing member main body 22. When the density is large and the air permeability is low, the positioning gap can be increased, and vice versa. The material of the sealing member main body 22 is preferably foam (foaming).

[0037] In one embodiment, the sealing member 2 is a sealed foam, and the fastener includes at least one of a C-shaped nail or a staple. In this embodiment, the material of the sealing member 2 is the same as the material of the foam of the seat. The side (the first side) of the air bag 13 for connecting with the sealing member 2 is a TPU film, and the other opposite side (the second side) is non-woven fabric, and the support body 14 is a 3D mesh.

[0038] The ventilation structure provided by the embodiment of the present utility model fixes the air guiding component 1 on the foam through a fastener, and uses the confinement force of the fastener to squeeze the elastic sealing member 2 between the air guiding component 1 and the foam. When the plane of the foam for connecting with the air guiding component 1 is uneven due to process or other reasons, the elastic sealing member 2 will bounce up or compress a part at the uneven position of the foam, filling the uneven part of the foam, so that the two opposite sides of the sealing member 2 are respectively attached to the foam and the air guiding component 1, thereby avoiding air leakage at the connection between the air guiding component 1 and the foam, and also avoiding abnormal noise caused by air leakage. At the same time, during operation, the first ventilation port is connected to the air outlet of the air source (fan). When the air source blows air, the air flow sequentially passes through the air outlet of the air source, the first ventilation port, the cavity 4, the second ventilation port, and the air inlet channel 3 to be blown to the position required by the foam; when the air source sucks air, the air flow at the position required by the foam sequentially passes through the air inlet channel 3, the second ventilation port, the cavity 4, the first ventilation port, and the air outlet of the air source to be sucked away, thereby ensuring the ventilation of the corresponding position of the seat.

[0039] In addition, an embodiment of the present utility model provides a ventilation system, which includes a seat, a foam, and the ventilation structure of the above embodiment. The foam is disposed on the seat, and the ventilation structure is disposed on the foam. In this embodiment, the ventilation system further includes a wind source, which is disposed on the seat. The wind source has an air outlet, and the air outlet of the wind source is communicated with the first ventilation port. The wind source includes a fan. The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A ventilation structure, characterized in that, It includes an air guiding component, a fastener and an elastic seal. The interior of the air guiding component has a cavity. The air guiding component has a first side face and a second side face opposite to each other in a first direction. A first ventilation opening is provided on the first side face of the air guiding component, and a second ventilation opening is provided on the second side face of the air guiding component. The interior of the seal has an air inlet channel with openings at both ends. The air guiding component and the seal are arranged in sequence in the first direction. The air guiding component includes an air bag and a support body. The cavity, the first ventilation opening and the second ventilation opening are provided on the air bag. The support body is arranged in the cavity to support the air bag, so that the first ventilation opening, the cavity, the second ventilation opening and the air inlet channel are communicated in sequence. The fastener is arranged on the air guiding component, used to fix the air guiding component on the seat foam, and also used to squeeze the seal between the air guiding component and the seat foam.

2. The ventilation structure according to claim 1, characterized in that, The seal includes a connecting piece and an elastic seal body. The connecting piece is arranged on the seal body. The air inlet channel is arranged in the connecting piece. The seal body has a third side face and a fourth side face opposite to each other in the first direction. The third side face of the seal body is attached to the second side face of the air guiding component. One end of the connecting piece is flush with the third side face of the seal body, and the other end extends out of the fourth side face of the connecting piece.

3. The ventilation structure according to claim 2, wherein, A plurality of the connecting pieces are provided on the seal body. The plurality of connecting pieces are arranged at intervals. The air inlet channel of each connecting piece is communicated with one second ventilation opening.

4. The ventilation structure according to claim 2, characterized in that The seal body is bonded to the air bag.

5. The ventilation structure according to claim 1, characterized in that, The air inlet channel is a circular channel, the second ventilation opening is a round hole, and the aperture of the air inlet channel is larger than the aperture of the second ventilation opening.

6. The ventilation structure according to claim 5, wherein, The difference between the aperture of the air inlet channel and the aperture of the second ventilation opening is 1 mm to 6 mm.

7. The ventilation structure according to claim 1, wherein The air bag is provided with connecting ears, and positioning holes are provided on the connecting ears. The fastener is inserted into the positioning holes.

8. The ventilation structure according to claim 7, characterized in that, The air bag is provided with a plurality of the connecting ears. The plurality of connecting ears are arranged at intervals, and the gap between two adjacent connecting ears is 20 mm to 150 mm.

9. The ventilation structure according to claim 1, wherein The seal is a sealing foam, and the fastener includes at least one of a C-type nail or a staple.

10. A ventilation system, characterized in that, It includes a seat, a foam and the ventilation structure according to any one of claims 1-9. The foam is arranged on the seat, and the ventilation structure is arranged on the foam.

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