Low-temperature-resistant hardened seat filling structure
By using layered design and material selection, combined with thermoplastic polyurethane materials and plasticizers, the problem of seat hardening at low temperatures was solved, achieving good elasticity and support in low-temperature environments, thus improving the comfort and durability of the seat.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-22
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional seat filling materials tend to harden in low-temperature environments, resulting in stiff seats, reduced shock absorption, and insufficient durability in dynamic low-temperature cycling environments, making the filling layer prone to cracking or collapse.
The design employs a layered approach, comprising an upper, middle, and lower layer. The middle layer is an elastic layer that utilizes thermoplastic polyurethane material and plasticizers to enhance low-temperature performance. It also enhances elasticity and support through a honeycomb structure and support array structure, and provides dynamic support and cushioning by combining elastic support units and support columns.
Maintaining good elasticity and support at low temperatures, avoiding excessive deformation and collapse, improving seat comfort and durability, and adapting to dynamic low-temperature cycling environments.
Smart Images
Figure CN224075433U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seat technology, specifically to a seat filling structure resistant to low-temperature hardening. Background Technology
[0002] In automotive seat design, the comfort, durability, and environmental adaptability of seat filling materials are key technical indicators. Traditional seat filling materials (such as polyurethane foam and sponge) can provide good support and softness at normal temperatures, but in low-temperature environments (such as frigid regions or winter), these materials are prone to hardening due to reduced mobility of polymer chains, resulting in a stiff seat feel, decreased shock absorption performance, and seriously affecting ride comfort.
[0003] Currently, common methods to improve low-temperature performance include adding plasticizers, using materials with low glass transition temperatures (Tg), or using composite multilayer structures. However, plasticizers may migrate and volatilize, leading to performance degradation after long-term use; low Tg materials may sacrifice support at high temperatures; and multilayer structures often increase process complexity and cost. Furthermore, existing technologies do not adequately address the durability of materials in dynamic low-temperature cycling environments (such as temperature fluctuations caused by frequent vehicle start-stop cycles), making them prone to problems such as cracking or collapse of the filler layer.
[0004] Therefore, a low-temperature hardening resistant seat filling structure is needed to improve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a seat filling structure resistant to low-temperature hardening, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A low-temperature hardening resistant seat filling structure includes an upper layer, a middle layer, and a bottom layer. The middle layer is an elastic layer, which includes a set of symmetrically arranged elastic intermediate layers. An elastic support unit is disposed between the two elastic intermediate layers, and a filling material is disposed between the elastic support unit and the elastic intermediate layers on both sides.
[0008] As a preferred embodiment of this utility model, the elastic intermediate layer includes an elastic pad, which is made of thermoplastic polyurethane material and contains plasticizers to enhance low-temperature performance. The elastic pad has a support array structure on its side.
[0009] As a preferred embodiment of this utility model, the elastic pad has a honeycomb structure inside.
[0010] As a preferred embodiment of this utility model, the support array structure includes several support parts, each support part including a circular groove formed on the side of the elastic pad, and an elastic column is provided inside the circular groove.
[0011] As a preferred embodiment of this utility model, the elastic support unit includes a support unit, and a plurality of elastic units are arranged in an array at equal intervals on the support unit.
[0012] As a preferred embodiment of this utility model, the elastic unit includes a support column that runs through the support unit, and a spring is provided inside the support column.
[0013] As a preferred embodiment of this utility model, the upper layer is a cover layer, and the cover layer is made of PU material.
[0014] As a preferred embodiment of this utility model, the bottom layer is a support layer, and the support layer is a rubber support plate.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This invention enhances the elasticity and support of the elastic pad at low temperatures by setting a set of symmetrical elastic support units and cooperating with them, combined with the honeycomb structure inside the elastic pad and the support array structure on the side, thus avoiding excessive deformation and collapse caused by low temperature. Attached Figure Description
[0017] Figure 1 This is a first-view perspective perspective view of the present invention;
[0018] Figure 2 This is a second-view perspective perspective view of the present invention;
[0019] Figure 3 This is a cross-sectional perspective view of the present invention;
[0020] Figure 4 This is a cross-sectional structural diagram of the present invention.
[0021] In the diagram: Covering layer 1, Support layer 2, Elastic intermediate layer 3, Elastic pad 31, Circular groove 32, Elastic column 33, Support unit 4, Support column 41, Spring 42. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0023] To facilitate understanding of this utility model, a more comprehensive description of it will be provided below with reference to relevant embodiments. Several embodiments of this utility model are given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.
[0024] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0026] Please see Figure 1-4 This utility model provides a technical solution:
[0027] For an example, please refer to... Figure 1 , 2 3 and 4, a low-temperature hardening resistant seat filling structure, including an upper layer, a middle layer and a bottom layer, the middle layer being an elastic layer, the elastic layer including a set of symmetrically arranged elastic intermediate layers, an elastic support unit being disposed between the two elastic intermediate layers, and a filling material being disposed between the elastic support unit and the two elastic intermediate layers.
[0028] The seat filling structure of this utility model adopts an upper layer, a middle layer and a bottom layer. This layered design facilitates the realization of different functions. The upper layer provides a comfortable touch, the middle layer provides elasticity and support, and the bottom layer provides basic support.
[0029] The middle layer employs an elastic layer design, providing primary support and cushioning functions. In Example 1, the elastic layer consists of a set of symmetrically arranged elastic intermediate layers, elastic support units, and filling material. This design aims to provide good elasticity and support while also considering comfort and durability.
[0030] The bottom layer is a rubber support plate, providing basic support and stability. Rubber material has good elasticity and toughness, capable of withstanding significant pressure and impact, ensuring the overall stability of the seat. The thickness and hardness of the rubber support plate can be adjusted according to the specific design of the seat to meet different support requirements.
[0031] Please refer to Figure 1 , 2 3 and 4, the elastic intermediate layer includes an elastic pad 31, which is made of thermoplastic polyurethane material with added plasticizer to enhance low temperature performance. The elastic pad 31 has a support array structure on its side and a honeycomb structure inside.
[0032] The elastic intermediate layer consists of an elastic pad 31. The elastic pad 31 is made of thermoplastic polyurethane material with added plasticizers. Thermoplastic polyurethane has good elasticity and abrasion resistance, while the addition of plasticizers further improves the material's flexibility and resistance to hardening at low temperatures. The thickness of the elastic pad 31 can be adjusted as needed; for example, it can be appropriately thickened in areas requiring stronger support.
[0033] In Example 1, the elastic pad 31 is made of thermoplastic polyurethane with added plasticizer. Thermoplastic polyurethane itself has good elasticity and abrasion resistance, but it may harden at low temperatures. By adding a plasticizer, the glass transition temperature of the thermoplastic polyurethane can be lowered, allowing it to maintain good flexibility and elasticity at low temperatures. The selection and amount of plasticizer need to be optimized according to the specific application environment and performance requirements.
[0034] The honeycomb structure has a large porosity, which can significantly reduce the weight of the elastic pad. The honeycomb structure can deform under pressure, absorb and disperse energy, and play a buffering role. The honeycomb structure is conducive to air circulation, which can improve the comfort of riding. The honeycomb structure can be designed and processed according to needs to adapt to different shape and size requirements. In Example 1, the size and wall thickness of the honeycomb structure can be adjusted according to specific needs to achieve different support and buffering effects.
[0035] Please refer to Figure 1 , 2 3 and 4, the support array structure includes several support parts, each of which includes a circular groove 32 opened on the side of the elastic pad 31, and an elastic column 33 is provided inside the circular groove 32.
[0036] The support array structure includes several support parts, each including a circular groove 32 formed on the side of the elastic pad 31, and an elastic column 33 disposed inside the circular groove 32. This design can enhance the lateral support force and stability of the elastic pad 31, preventing it from deforming excessively under pressure. The depth and diameter of the circular groove 32, as well as the height and diameter of the elastic column 33, can be adjusted according to specific needs to achieve different support effects.
[0037] The elastic support unit includes a support unit 4, on which several elastic units are arranged in an array at equal intervals. Each elastic unit includes a support column 41 that passes through the support unit 4, and a spring 42 is arranged inside the support column 41.
[0038] The elastic unit includes a support column 41 that runs through the support unit 4, and a spring 42 installed inside the support column 41. This design can provide support force while absorbing and releasing energy through the compression and rebound of the spring, achieving dynamic support and cushioning effects. The height and diameter of the support column 41, as well as the stiffness and number of coils of the spring 42, can be adjusted according to specific needs to achieve different support and cushioning effects.
[0039] The filling material, located between the two elastic intermediate layers and the elastic support unit, serves to fill, cushion, and insulate. Various soft materials can be used, such as sponge or fiber cotton. The density and thickness of the filling material can be adjusted according to specific needs to achieve different levels of comfort and cushioning.
[0040] The support column 41 penetrates the elastic support unit 4, serving both support and guidance functions. The height and diameter of the support column 41 can be adjusted according to specific needs to achieve different support effects. In areas requiring stronger support, the height and diameter of the support column 41 can be appropriately increased. The spring 42 is located inside the support column 41, providing cushioning and shock absorption. The stiffness and number of coils of the spring 42 can be adjusted according to specific needs to achieve different cushioning effects. For example, in areas requiring better shock absorption, the stiffness of the spring 42 can be appropriately reduced or its number of coils increased.
[0041] The upper layer is the cover layer 1, which is made of PU material. The bottom layer is the support layer 2, which is a rubber support plate.
[0042] In Example 1, the upper layer is made of PU material. PU material has good abrasion resistance, breathability, and comfort, and can directly contact the occupant, providing a soft touch. Furthermore, PU material can undergo various surface treatments, such as perforation and embossing, to further improve breathability and aesthetics. The thickness of the covering layer 1 can be adjusted according to specific needs; for example, it can be appropriately thickened in areas that frequently come into contact with the body to enhance comfort.
[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A cold-cure resistant seating structure comprising an upper layer, a middle layer, and a bottom layer, characterized in that: The middle layer is an elastic layer, which comprises a set of symmetrically arranged elastic intermediate layers, and an elastic support unit is arranged between the two elastic intermediate layers, and a filling material is arranged between the elastic support unit and the two elastic intermediate layers.
2. The cold-temper stiffened seat structure of Claim 1, wherein: The elastic intermediate layer comprises an elastic pad (31) made of thermoplastic polyurethane material, wherein a plasticizer is added to enhance low-temperature performance, and the side edge of the elastic pad (31) is provided with a support array structure.
3. The cold- hardening resistant seat stnicture of claim 2, wherein: The elastic pad (31) is internally provided with a honeycomb structure.
4. The cold- hardening resistant seat stnicture of claim 3, wherein: The support array structure comprises a plurality of support portions, and each support portion comprises a circular groove (32) formed in the side edge of the elastic pad (31), and the circular groove (32) is internally provided with an elastic column (33).
5. The cold-temper stiffened seating structure of any of claims 1-4, wherein: The elastic support unit comprises a support unit (4), and a plurality of elastic units are arranged on the support unit (4) at equal intervals.
6. The cold- hardening resistant seat padding structure according to claim 5, characterized by: The elastic unit comprises a support column (41) arranged through the support unit (4), and the support column (41) is internally provided with a spring (42).
7. The cold-temper stiffened seating structure of any of claims 1-6, wherein: The upper layer is a cover layer (1) made of PU material.
8. The cold- hardening resistant seat padding structure according to claim 7, characterized by: The bottom layer is a support layer (2), and the support layer (2) is a rubber support plate.