Seat cushion with ventilation and heating functions

Abstract

The utility model discloses a seat cushion with ventilation and heating functions, which comprises a cushion framework, cushion foam, a heating cushion and a cushion surface sleeve, a fan is mounted on the cushion framework, the cushion foam covers the cushion framework and is provided with a plurality of ventilation holes communicated with the fan, the heating cushion comprises a heating cushion body and a heating wire, and the heating wire is arranged on the cushion framework. The heating pad body is adhered to the top surface of the cushion foam, whole-surface air outlet holes are densely and uniformly formed in the heating pad body, the hole diameter of the air outlet holes is far smaller than that of the ventilation holes, the heating wire is sewn on the top surface of the heating pad body through sewing threads, and the cushion surface cover integrally covers the cushion framework, the cushion foam and the heating pad. The dense small holes are formed in the heating pad, so that even if the pasting position of the heating pad is slightly deviated, a large number of air outlet holes can be communicated with the ventilation holes, and the problem that the air outlet holes cannot be communicated with the ventilation holes or are only locally communicated with the ventilation holes due to position deviation is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to a seat cushion with ventilation and heating functions. Background Technology

[0002] With the rapid development of the automotive industry and the increasing demands of consumers for car ride comfort, the functions of car seat cushions are constantly being enriched and optimized. Among them, car seat cushions with both ventilation and heating functions have received widespread market attention because they can effectively improve the comfort experience of drivers and passengers in various environments. In traditional technology, car seat cushions with ventilation and heating functions are usually composed of main components such as a cushion frame, cushion foam, heating pad, and cushion cover. The cushion frame serves as the supporting structure of the entire cushion, providing a mounting base for other components; the cushion foam covers the cushion frame, playing a role in cushioning and shaping, and has several ventilation holes connected to the fan to achieve the ventilation function; the heating pad is used to provide heating to meet the warmth needs of drivers and passengers in cold environments; the cushion cover serves the overall covering and decoration function.

[0003] However, traditional car seat cushions with ventilation and heating functions have significant flaws in the design of the air vents in the heating pad. Traditional heating pads align their air vents one-to-one with the ventilation holes on the seat cushion foam, and these air vents are large holes with the same structure as the ventilation holes. This design presents numerous problems in practical applications. Because it's difficult to guarantee absolute precision in the placement of the heating pad when it's attached to the top surface of the seat cushion foam, even a slight deviation in placement will result in the air vents and ventilation holes not being fully connected, or only partially connected. Furthermore, since the heating pad is usually fixed to the seat cushion foam by adhesive, it's prone to shifting over time due to various external forces acting on the seat, further exacerbating the misalignment problem between the air vents and ventilation holes. This severely affects the fan's airflow efficiency, significantly reducing the ventilation function and failing to provide effective ventilation and heat dissipation for passengers, thus reducing the overall comfort of the seat cushion. Moreover, the heating wires in existing heating pads are usually wrapped between two layers of padding, resulting in poor heating performance. Utility Model Content

[0004] In view of the problems existing in the prior art, the present invention aims to provide a seat cushion with ventilation and heating functions to solve the problem of poor ventilation and heating performance of existing car seat cushions.

[0005] To achieve the above objectives, this utility model proposes a seat cushion with ventilation and heating functions, including a seat cushion frame, seat cushion foam, heating pad, and seat cushion cover. A fan is installed on the seat cushion frame, and the seat cushion foam covers the seat cushion frame and has several ventilation holes communicating with the fan. The heating pad includes a heating pad body and heating wires. The heating pad body is attached to the top surface of the seat cushion foam, and the heating pad body has densely and evenly arranged air outlet holes, the diameter of which is much smaller than the diameter of the ventilation holes. The heating wires are sewn to the top surface of the heating pad body by sewing thread. The seat cushion cover completely covers the seat cushion frame, seat cushion foam, and heating pad.

[0006] In the above solution: the foamed seat cushion has a pre-drilled clamping groove, and a clamping structure connects the clamping groove to the seat cushion cover. The clamping structure presses the corresponding area of ​​the heating pad into the clamping groove. The clamping structure not only secures the seat cushion cover but also prevents the heating pad from shifting during use.

[0007] In the above solution: the surface of the area corresponding to the heating pad and the clamping groove is covered with a protective pad to cover the heating wire, and the protective pad is sewn onto the heating pad body. The protective pad serves as an insulator to prevent the clamping structure from damaging the heating wire.

[0008] In the above scheme: the diameter of the air outlet is 1-2mm. This dense small hole design ensures that even if there is a slight deviation in the position of the heating pad, a large number of air outlets and ventilation holes can still be connected.

[0009] The above solution also includes an air bag, with the fan connected to it. The air bag is fixed to the bottom surface of the seat cushion foam, and a vent on the top surface of the air bag communicates with the ventilation holes on the seat cushion foam. The air bag gathers the airflow generated by the fan, acting like an "airflow container," avoiding disorderly diffusion and waste of airflow during transmission. The vent on the top surface of the air bag, communicating with the ventilation holes in the seat cushion foam, allows the gathered airflow to be evenly distributed to each ventilation hole.

[0010] In the above solution: the seat cushion frame includes a seat cushion suspension, the air bag is arranged between the top surface of the seat cushion suspension and the bottom surface of the seat cushion foam, the bottom surface of the seat cushion foam has a reserved air bag mounting groove, the air bag is embedded in the air bag mounting groove, and the air bag is fixed to the seat cushion foam at the edge by screws.

[0011] The seat cushion foam has pre-drilled grooves for installing air bags, which are then embedded within the grooves. This design ensures precise positioning of the air bags and prevents positional deviations during installation. Furthermore, the edges of the air bags are secured to the seat cushion foam with screws, further enhancing the stability and ensuring the air bags remain stable during seat use. Additionally, the seat cushion suspension provides some support and restraint for the air bags.

[0012] The beneficial effects of this utility model are:

[0013] 1. The heating pad features densely packed and evenly distributed air vents. Compared to the traditional large-hole structure where each vent is aligned with a foam ventilation hole in the seat cushion, this dense, small-hole design ensures that even with slight misalignment of the heating pad's placement, a large number of air vents remain connected to the ventilation holes. This effectively avoids the problem of air vents not communicating or only partially communicating due to positional deviations, significantly improving the fan's airflow efficiency and making the seat cushion's ventilation function more stable and efficient, providing a better ventilation and heat dissipation experience for passengers. 2. With air vents covering the entire heating pad, airflow can be evenly distributed to the seat cushion surface through these vents, preventing insufficient or excessive ventilation in certain areas and further enhancing the uniformity of ventilation. 3. The heating wire is sewn to the top surface of the heating pad body by sewing thread. This fixing method is relatively firm. During long-term use of the seat cushion, the heating wire is not easy to shift or fall off, thus ensuring the stability and reliability of the heating function and providing a stable heating effect for drivers and passengers. In addition, the seat cover directly wraps around the heating wire. Compared with the traditional method of covering the heating wire with a pad and then wrapping the seat cover, the heating effect of this design is better. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0015] Figure 1 This is a schematic diagram of the heating pad layout.

[0016] Figure 2 yes Figure 1 Rear view.

[0017] Figure 3 This is a schematic diagram of the fan installation.

[0018] Figure 4 This is a schematic diagram of the foam structure of the seat cushion. Detailed Implementation

[0019] like Figure 1 As shown in Figure 4, a seat cushion with ventilation and heating functions is mainly composed of a seat cushion frame 1, a seat cushion foam 2, a heating pad, and a seat cushion cover. A fan 5 is installed on the seat cushion frame 1, and the seat cushion foam 2 covers the seat cushion frame 1 and has several ventilation holes 6 that communicate with the fan 5.

[0020] The heating pad includes a heating pad body 3 and a heating wire 4. The heating pad body 3 is attached to the top surface of the seat cushion foam 2. The heating pad body 3 has dense and uniform air outlet holes all over its surface. The diameter of the air outlet holes is much smaller than the diameter of the ventilation holes 6. The heating wire 4 is sewn to the top surface of the heating pad body 3 by sewing thread. The seat cushion cover completely covers the seat cushion frame 1, the seat cushion foam 2 and the heating pad.

[0021] Ideally, the seat cushion foam 2 should have a pre-drilled clamping groove 21, and a clamping structure should be connected between the clamping groove 21 and the seat cushion cover. The clamping structure should press the corresponding area of ​​the heating pad into the clamping groove 21. The clamping structure should not only fix the seat cushion cover, but also prevent the heating pad from shifting during use.

[0022] Ideally, the surface of the area corresponding to the heating pad and the clamping groove 21 is covered with a protective pad to cover the heating wire 42, and the protective pad is sewn onto the heating pad body 3. The protective pad serves as an insulator to prevent the clamping structure from crushing the heating wire 4.

[0023] Ideally, the diameter of the air outlet holes should be 1-2mm. This dense small hole design ensures that even if there is a slight deviation in the placement of the heating pad, a large number of air outlet holes and ventilation holes 6 can still be connected.

[0024] Ideally, it also includes an air bag 7, with the blower 5 connected to the air bag 7. The air bag 7 is fixed to the bottom surface of the seat cushion foam 2, and the top surface of the air bag 7 has a vent that communicates with the ventilation holes 6 on the seat cushion foam 2. The air bag 7 gathers the airflow generated by the blower 5, acting like an "airflow container" to avoid disorderly diffusion and waste of airflow during transmission. The vent on the top surface of the air bag 7, which communicates with the ventilation holes of the seat cushion foam 2, can evenly distribute the gathered airflow to each ventilation hole 6.

[0025] Preferably, the seat frame 1 includes a seat suspension 11, and air bags 7 are arranged between the top surface of the seat suspension 11 and the bottom surface of the seat foam 2. An air bag mounting groove is reserved on the bottom surface of the seat foam 2, the air bags 7 are embedded in the air bag mounting groove, and the air bags 7 are fixed to the seat foam 2 at the edge by screws.

[0026] The bottom surface of the seat cushion foam 2 has a pre-drilled groove for the air bag installation, into which the air bag 7 is embedded. This design ensures precise positioning of the air bag 7, preventing any positional deviation during installation. Simultaneously, the edges of the air bag 7 are secured to the seat cushion foam 2 with screws, further enhancing the stability and ensuring the air bag 7 remains stable during seat cushion use. Furthermore, the seat cushion suspension 11 provides some support or restraint for the air bag 7.

Claims

1. A seat cushion with ventilation and heating functions, comprising a seat cushion frame (1), a seat cushion foam (2), a heating pad, and a seat cushion cover, wherein a fan (5) is installed on the seat cushion frame (1), and the seat cushion foam (2) covers the seat cushion frame (1) and has a plurality of ventilation holes (6) communicating with the fan (5), characterized in that: The heating pad includes a heating pad body (3) and a heating wire (4). The heating pad body (3) is attached to the top surface of the seat cushion foam (2). The heating pad body (3) is densely and evenly provided with air outlet holes. The diameter of the air outlet holes is much smaller than that of the ventilation holes (6). The heating wire (4) is sewn to the top surface of the heating pad body (3) by sewing thread. The seat cushion cover is completely covered by the seat cushion frame (1), the seat cushion foam (2) and the heating pad.

2. The seat cushion with ventilation and heating function according to claim 1, characterized in that: The seat cushion foam (2) has a pre-reserved tightening groove (21), and a tightening structure is connected between the tightening groove (21) and the seat cushion cover. The tightening structure presses the corresponding area of ​​the heating pad into the tightening groove (21).

3. The seat cushion with ventilation and heating function according to claim 2, characterized in that: The surface of the area corresponding to the heating pad and the clamping groove (21) is covered with a protective pad for covering the heating wire (4), and the protective pad is sewn onto the heating pad body (3).

4. The seat cushion with ventilation and heating function according to claim 1, characterized in that: The diameter of the air outlet is 1-2 mm.

5. The seat cushion with ventilation and heating function according to claim 1, characterized in that: It also includes a wind bag (7), the fan (5) is connected to the wind bag (7), the wind bag (7) is fixed on the bottom surface of the cushion foam (2), and the top surface of the wind bag (7) has a ventilation opening that communicates with the ventilation hole (6) on the cushion foam (2).

6. The seat cushion with ventilation and heating function according to claim 5, characterized in that: The seat cushion frame (1) includes a seat cushion suspension (11), and the air bag (7) is arranged between the top surface of the seat cushion suspension (11) and the bottom surface of the seat cushion foam (2). The bottom surface of the seat cushion foam (2) has a pre-reserved air bag mounting groove. The air bag (7) is embedded in the air bag mounting groove, and the air bag (7) is fixed to the seat cushion foam (2) at the edge by screws.

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