Air suction type seat ventilation system

Abstract

The utility model discloses an air suction type seat ventilation system, which relates to the technical field of automobile part manufacture and mainly comprises a butterfly-shaped fan and a ventilation bag, the butterfly-shaped fan comprises an air inlet and an air outlet, the ventilation bag comprises an air outlet and a plurality of air inlets, the air inlet of the butterfly-shaped fan is used for being communicated with the air outlet of the ventilation bag, and the air inlet of the butterfly-shaped fan is used for being communicated with the air inlet of the ventilation bag. An air outlet of the butterfly-shaped fan is formed in the side face of the butterfly-shaped fan so that circumferential air outlet of the side face of the butterfly-shaped fan can be achieved, and the diameters of the multiple air inlets of the ventilation bag are gradually increased from the near end away from the butterfly-shaped fan to the far end away from the butterfly-shaped fan. The air inlet amount of the automobile seat can be large, ventilation is even, and the use experience effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts manufacturing, in particular to an air suction type seat ventilation system. Background Art

[0002] With the improvement of living standards, cars have gradually become a means of transportation for the public, and people have increasingly higher requirements for car comfort. Among them, the comfort of car seats has the most critical impact on use, and more and more manufacturers are using seats with ventilation functions. The air volume and pressure of the fan in the ventilation system are key factors in the ventilation effect. At present, ordinary centrifugal fans are widely used in car seats to collect air and discharge it through the air outlet. This design involves a process of collecting air, resulting in the hot air sucked in by the fan not being discharged in a timely and uniform manner, affecting the exhaust effect, and further affecting the suction effect, resulting in a decrease in the air volume and pressure of the fan sucking air into the seat. In addition, the air inlet holes of the existing ventilation bags are uniformly arranged in size, resulting in poor air intake effect at the air inlet holes farther away from the fan, affecting the use effect.

[0003] Patent CN111791767A discloses an air outlet connection mechanism for a backrest ventilation fan and a car seat, comprising a ventilation fan and a ventilation air bag. The ventilation fan can inhale and collect air and then discharge it, but has the same defect of low air volume and pressure of the above-mentioned fan.

[0004] Therefore, there is an urgent need for a suction-type seat ventilation system that can provide large and even ventilation for car seats and improve the user experience. Utility Model Content

[0005] The purpose of the present invention is to provide a suction-type seat ventilation system to solve the problems existing in the above-mentioned prior art, so that the air intake of the car seat is large and the ventilation is uniform, thereby improving the user experience.

[0006] To achieve the above purpose, the present invention provides the following solutions:

[0007] The utility model provides a suction-type seat ventilation system, comprising: a butterfly fan and a ventilation bag, the butterfly fan comprising an air inlet and an air outlet, the ventilation bag comprising an air outlet and multiple air inlets, the air inlet of the butterfly fan being used to communicate with the air outlet of the ventilation bag, the air outlet of the butterfly fan being arranged on the side of the butterfly fan to realize the side circumferential air outlet of the butterfly fan, and the diameters of the multiple air inlets of the ventilation bag gradually increase from the proximal end of the butterfly fan to the distal end of the butterfly fan.

[0008] Preferably, it also includes a fan bracket, which is provided with a through hole with the same diameter as the air outlet. The butterfly fan includes an outer shell and a plurality of fan blades. The plurality of fan blades are evenly distributed on the fan blade shaft along the circumference. The fan blade shaft is rotatably set in the outer shell, and the outer shell is fixedly connected to the ventilation bag through the fan bracket.

[0009] Preferably, a first nail hole is provided on the edge of the shell, and a second nail hole corresponding to the first nail hole is provided on the fan bracket, and the butterfly fan is fixed to the fan bracket by passing a fixing nail through the first nail hole and the second nail hole.

[0010] Preferably, the fixing nail is a plastic nail, which includes a bracket clip, a fan clip, a nail cap and a nail column. The bracket clip and the fan clip are both arranged on the nail column. The clamping space between the nail cap and the bracket clip is used to clamp the fan bracket, and the clamping space between the bracket clip and the fan clip is used to clamp the butterfly fan.

[0011] Preferably, a sealing filler is provided around the air inlet of the butterfly fan, and the sealing filler is used to seal the gap between the butterfly fan and the fan bracket.

[0012] Preferably, the sealing filler is an elastic closed-cell sponge.

[0013] Preferably, a fixing buckle is further provided at the air inlet of the butterfly fan, and the fixing buckle is used to clamp the inner wall of the through hole of the fan bracket.

[0014] Preferably, the butterfly fan also includes a windshield, and the butterfly fan is provided with a blade upper ring, and the ends of the multiple blades close to the fan bracket are connected through the blade upper ring, and the side of the blade upper ring close to the fan bracket is circumferentially provided with a first windshield, and the outer shell is circumferentially provided with a second windshield matching the first windshield, and the second windshield is provided with a groove and a protrusion, and the protrusion is used to connect with the fan bracket, and the groove is provided at the end of the protrusion away from the fan bracket, and the first windshield is stuck in the groove, which can prevent wind from flowing out directly from the blade upper ring.

[0015] Preferably, a first fixing hole is provided on the ventilation bag, and a second fixing hole corresponding to the first fixing hole is provided on the fan bracket. The first fixing hole and the second fixing hole are used for the fixing column reserved on the seat foam to pass through, so as to achieve the fixation of the ventilation bag and the fan bracket.

[0016] Preferably, the ventilation bag includes a first PU film, a sandwich net, a second PU film and a felt layer arranged in sequence, the edges of the first PU film, the sandwich net and the second PU film are fixedly sealed and connected, the felt layer covers and is fixed to the surface of the second PU film, and the first PU film is provided with a plurality of the air inlets, the second PU film is connected to the felt layer and is provided with the air outlet, and the felt layer is used to be fixedly connected to the fan bracket.

[0017] Compared with the prior art, the utility model has achieved the following technical effects:

[0018] The butterfly fan of the present invention includes an air inlet and an air outlet, and the ventilation bag includes an air outlet and multiple air inlets. The air inlet of the butterfly fan is used to communicate with the air outlet of the ventilation bag. The air outlet of the butterfly fan is arranged on the side of the butterfly fan, which can ensure the air outlet of the side periphery of the butterfly fan. The diameters of the multiple air inlets of the ventilation bag gradually increase from the proximal end of the butterfly fan to the far end of the butterfly fan. The butterfly fan can outlet air around the side to ensure that the air is discharged in a timely and even manner, and the ventilation bag adjusts the diameter of the air inlet according to the distance from the butterfly fan. The diameter close to the butterfly fan is smaller, and the diameter far from the butterfly fan is larger. Although the suction force of the butterfly fan is small at a farther distance, the air intake can also be guaranteed by increasing the diameter of the air inlet. The butterfly fan and the ventilation bag doubly guarantee the air intake of the car seat, so that the air intake of the car seat is large and the ventilation is even, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is an exploded view of the suction-type seat ventilation system in an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of a butterfly fan from a first angle in an embodiment of the present invention;

[0022] Figure 3 This is a second angle schematic diagram of the butterfly fan in the embodiment of the present utility model;

[0023] Figure 4 This is a cross-sectional view of a butterfly fan in an embodiment of the present utility model;

[0024] Figure 5 This is a schematic diagram of the air inlet surface of the ventilation bag in an embodiment of the present utility model;

[0025] Figure 6 This is a schematic diagram of the air outlet surface of the ventilation bag in an embodiment of the present utility model;

[0026] Figure 7 This is a schematic diagram of the air inlet of the ventilation bag in an embodiment of the present utility model;

[0027] Figure 8 This is a schematic structural diagram of a fan bracket in an embodiment of the present utility model;

[0028] Figure 9 This is a schematic structural diagram of a fixing nail in an embodiment of the present utility model;

[0029] Figure 10 This is a structural diagram of the ventilation bag in an embodiment of the present utility model.

[0030] In the figure: 1-butterfly fan; 11-air inlet; 12-air outlet; 13-fixing buckle; 14-housing; 15-fan blade; 16-sealing filler; 17-fan blade shaft; 18-first windshield wall; 19-second windshield wall; 2-ventilation bag; 21-air inlet; 22-air outlet; 23-first fixing hole; 3-fan bracket; 31-second fixing hole; 32-through hole; 33-second nail hole; 4-fixing nail; 41-nail cap; 42-bracket buckle; 43-fan buckle; 44-nail column; 5-first PU film; 6-sandwich net; 7-second PU film; 8-felt layer. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 creative efforts are within the scope of protection of the present invention.

[0032] The purpose of the utility model is to provide a suction-type seat ventilation system to solve the problems existing in the prior art, so that the air intake of the car seat is large and the ventilation is uniform, thereby improving the user experience.

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0034] like Figures 1-10As shown, the utility model provides an air suction type seat ventilation system, comprising: a butterfly fan 1 and a ventilation bag 2, the butterfly fan 1 comprising an air inlet 11 and an air outlet 12, the ventilation bag 2 comprising an air outlet 22 and a plurality of air inlets 21, the air inlet 11 of the butterfly fan 1 is used to communicate with the air outlet 22 of the ventilation bag 2, the air outlet 12 of the butterfly fan 1 is arranged on the side of the butterfly fan 1, which can ensure the circumferential air outlet of the side of the butterfly fan 1, and the diameter of the plurality of air inlets 21 of the ventilation bag 2 is from the proximal end of the butterfly fan 1 to the distal end of the butterfly fan 1. The distal end gradually becomes larger, and the butterfly fan 1 can discharge air around the side to ensure that the air is discharged in a timely and uniform manner, and the ventilation bag 2 adjusts the diameter of the air inlet 21 according to the distance from the butterfly fan 1. The diameter close to the butterfly fan 1 is smaller, and the diameter far from the butterfly fan 1 is larger. Although the suction force of the butterfly fan 1 is small at a farther distance, the air intake can also be guaranteed by increasing the diameter of the air inlet 21. The butterfly fan 1 and the ventilation bag 2 doubly guarantee the air intake of the car seat, so that the air intake of the car seat is large and the ventilation is uniform, thereby improving the user experience.

[0035] Specifically, if Figure 7 As shown, the diameter of the air inlet 21 increases from near to far according to the distance from the air inlet 11 of the butterfly fan 1, and the diameters R1-R7 of the air inlet 21 increase in sequence. R1-R7 represent the diameters of the air inlet from near to far from the air inlet 11. The farther away from the air inlet 11, the worse the air intake effect. By gradually increasing the diameter of the air inlet 21, the ventilation volume is increased, and the air intake volumes of the air inlets 21 at different distances are similar, so that the ventilation effect is more uniform.

[0036] In some embodiments, the suction-type seat ventilation system further includes a fan bracket 3, which is provided with a through hole 32 having the same diameter as the air outlet 22. The butterfly fan 1 includes a housing 14 and a plurality of blades 15. The blades 15 are rotatably disposed within the housing 14 via a blade shaft 17. The housing 14 is fixedly connected to the ventilation bag 2 via the fan bracket 3. The fan bracket 3 is injection molded from ABS plastic, ensuring that the fan bracket 3 has high strength and is easy to process. When the butterfly fan 1 is operating, air passes through the air inlet 21, the air outlet 22, and the through hole 32 in sequence, then enters the air inlet 11 of the butterfly fan 1, and is then discharged from the air outlet 12, thereby achieving a suction effect on the seat.

[0037] In some embodiments, the edge of the housing 14 is provided with first nail holes, preferably four first nail holes, and the fan bracket 3 is provided with second nail holes 33 corresponding to the first nail holes. The butterfly fan 1 is fixed to the fan bracket 3 by passing the fixing nails 4 through the first nail holes and the second nail holes 33. It should be noted that the number of the first nail holes and the second nail holes 33 can be changed as needed, for example, three can be provided in a triangular arrangement, or multiple can be provided in other polygonal arrangements.

[0038] As a preferred embodiment, the fixing nail 4 is a plastic nail, which includes a bracket buckle 42, a fan buckle 43, a nail cap 41 and a nail column 44. The bracket buckle 42 and the fan buckle 43 are both arranged on the nail column 44. The clamping space between the nail cap 41 and the bracket buckle 42 is used to clamp the fan bracket 3, and the clamping space between the bracket buckle 42 and the fan buckle 43 is used to clamp the butterfly fan 1. The plastic nail first passes through the second nail hole 33 and is tightened. The nail cap 41 and the bracket buckle 42 are used to fix the plastic nail on the fan bracket 3. Then, the nail column 44 is passed through the first nail hole on the outer casing 14 of the butterfly fan 1 and tightened. The butterfly fan 1 is fixed to the fan bracket 3 using the bracket buckle 42 and the fan buckle 43.

[0039] In some embodiments, a sealing filler 16 is provided around the air inlet 11 of the butterfly fan 1. The sealing filler 16 is used to seal the gap between the butterfly fan 1 and the fan bracket 3. Preferably, the sealing filler 16 is an elastic closed-cell sponge. Further preferably, the elastic closed-cell sponge is a ring-shaped, highly elastic closed-cell sponge that is adhered to the periphery of the air inlet 11 of the butterfly fan 1 using double-sided tape. When the air inlet 11 of the butterfly fan 1 is connected to the fan bracket 3, the highly elastic closed-cell sponge is compressed to fill the gap between the butterfly fan 1 and the fan bracket 3. Since the closed-cell sponge is used, it can act as a seal between the air inlet 11 of the butterfly fan 1 and the fan bracket 3. At the same time, it can prevent collisions between the butterfly fan 1 and the fan bracket 3 caused by bumps during driving. It should be noted that the sealing filler 16 can also be any one of wind-blocking sponge, elastic soft rubber, flexible felt pad, flexible composite material, or adhesive soft layer, or any combination of two or more thereof, as long as it can seal the gap between the butterfly fan 1 and the fan bracket 3 to prevent air leakage.

[0040] In some embodiments, a fixing buckle 13 is also provided at the air inlet 11 of the butterfly fan 1, and the fixing buckle 13 is used to clamp the inner wall of the through hole 32 of the fan bracket 3. Preferably, four fixing buckles 13 are provided and are evenly arranged along the circumference of the air inlet 11 to ensure that the air inlet 11 of the butterfly fan 1 is reliably fixed to the through hole 32 of the fan bracket 3, ensuring that the wind enters the air inlet 11 of the butterfly fan 1 smoothly.

[0041] In some embodiments, the butterfly fan 1 also includes a windshield, and the butterfly fan 1 is provided with a blade upper ring, and multiple blades 15 are connected through the blade upper ring near one end of the fan bracket 3, and a first windshield 18 is circumferentially provided on the side of the blade upper ring close to the fan bracket 3, and a second windshield 19 matching the first windshield 18 is circumferentially provided on the outer casing 14, and the second windshield 19 is provided with a groove 192 and a protrusion 191, and the protrusion 191 is used to connect with the fan bracket 3, and the groove 192 is provided at the end of the protrusion 191 away from the fan bracket 3, and the first windshield 18 is stuck in the groove 192, which can prevent wind from flowing out directly from the blade upper ring and ensure that the wind flows out through the air outlet 12. It has certain wind blocking and wind guiding properties, can avoid pressure loss caused by the pressure difference between the air inlet 11 and the air outlet 12 of the butterfly fan 1, reduce the pressure difference, and improve the performance of the butterfly fan 1 to a certain extent.

[0042] In some embodiments, a first fixing hole 23 is provided on the ventilation bag 2, and a second fixing hole 31 corresponding to the first fixing hole 23 is provided on the fan bracket 3. The first fixing hole 23 and the second fixing hole 31 are used for the fixing column reserved on the seat foam to pass through, so as to achieve the fixation of the ventilation bag 2 and the fan bracket 3, and also to achieve the fixation of the ventilation bag 2 and the seat foam. One column serves two purposes, saving materials.

[0043] In some embodiments, the ventilation bag 2 includes a first PU film 5, a sandwich mesh 6, a second PU film 7, and a felt layer 8, which are designed in this order. The edges of the first PU film 5, the sandwich mesh 6, and the second PU film 7 are fixedly and sealed together. The felt layer 8 covers and is fixed to the surface of the second PU film 7. The first PU film 5 is provided with multiple air inlets 21. The second PU film 7 and the felt layer 8 are connected and provided with air outlets 22. The felt layer 8 is used to be fixedly connected to the fan bracket 3. The sandwich mesh 6 is a highly breathable material that has a certain strength and allows air to pass through. Specifically, the edges of the first PU film 5, the sandwich mesh 6, and the second PU film 7 are welded using high-frequency equipment to ensure airtightness. The felt layer 8 is fixed to the fan bracket 3 by ultrasonic welding.

[0044] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A suction-type seat ventilation system, characterized in that: include: A butterfly fan and a ventilation bag, the butterfly fan includes an air inlet and an air outlet, the ventilation bag includes an air outlet and multiple air inlets, the air inlet of the butterfly fan is connected to the air outlet of the ventilation bag, the air outlet of the butterfly fan is arranged on the side of the butterfly fan to realize the side circumferential air outlet of the butterfly fan, and the diameters of the multiple air inlets of the ventilation bag gradually increase from the proximal end of the butterfly fan to the distal end of the butterfly fan.

2. The suction-type seat ventilation system according to claim 1, characterized in that: It also includes a fan bracket, which is provided with a through hole with the same diameter as the air outlet. The butterfly fan includes an outer shell and a plurality of fan blades. The plurality of fan blades are evenly distributed on the fan blade shaft along the circumference. The fan blade shaft is rotatably set in the outer shell, and the outer shell is fixedly connected to the ventilation bag through the fan bracket.

3. The suction-type seat ventilation system according to claim 2, characterized in that: The edge of the shell is provided with a first nail hole, and the fan bracket is provided with a second nail hole corresponding to the first nail hole. The butterfly fan is fixed to the fan bracket by passing a fixing nail through the first nail hole and the second nail hole.

4. The suction-type seat ventilation system according to claim 3, characterized in that: The fixing nail is a plastic nail, which includes a bracket clip, a fan clip, a nail cap and a nail column. The bracket clip and the fan clip are both arranged on the nail column. The clamping space between the nail cap and the bracket clip is used to clamp the fan bracket, and the clamping space between the bracket clip and the fan clip is used to clamp the butterfly fan.

5. The suction-type seat ventilation system according to claim 2, characterized in that: A sealing filler is provided around the air inlet of the butterfly fan, and the sealing filler is used to seal the gap between the butterfly fan and the fan bracket.

6. The suction-type seat ventilation system according to claim 5, characterized in that: The sealing filler is an elastic closed-cell sponge.

7. The suction-type seat ventilation system according to claim 2, characterized in that: A fixing buckle is further provided at the air inlet of the butterfly fan, and the fixing buckle is used to clamp the inner wall of the through hole of the fan bracket.

8. The suction-type seat ventilation system according to claim 2, characterized in that: The butterfly fan also includes a windshield, and the butterfly fan is provided with a blade upper ring, and the ends of the multiple blades close to the fan bracket are connected through the blade upper ring, and a first windshield is circumferentially provided on the side of the blade upper ring close to the fan bracket, and a second windshield matching the first windshield is circumferentially provided on the outer shell, and the second windshield is provided with a groove and a protrusion, and the protrusion is used to connect with the fan bracket, and the groove is provided at the end of the protrusion away from the fan bracket, and the first windshield is stuck in the groove, which can prevent wind from flowing out directly from the blade upper ring.

9. The suction-type seat ventilation system according to claim 2, characterized in that: The ventilation bag is provided with a first fixing hole, and the fan bracket is provided with a second fixing hole corresponding to the first fixing hole. The first fixing hole and the second fixing hole are used for the fixing column reserved on the seat foam to pass through, so as to achieve the fixation of the ventilation bag and the fan bracket.

10. The suction-type seat ventilation system according to claim 2, characterized in that: The ventilation bag includes a first PU film, a sandwich net, a second PU film and a felt layer arranged in sequence. The edges of the first PU film, the sandwich net and the second PU film are fixedly sealed and connected. The felt layer covers and is fixed to the surface of the second PU film, and the first PU film is provided with a plurality of the air inlets. The second PU film is connected to the felt layer and is provided with the air outlet. The felt layer is used to be fixedly connected to the fan bracket.

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