Foamed structure of a seat

Abstract

The utility model belongs to the technical field of seat, concretely relates to a seat foaming structure, including the foaming body that can be installed on the seat, the wire harness and electrical fittings are integrally formed in the foaming body, the wire harness connector of wire harness end part connection is located in the recess that sets up outside the foaming body or and the foaming body surface, advantage is: wire harness, electrical fittings set up in the foaming body realizes physical fixation and integration, avoids wire harness position drift and exposed wear and tear, simplifies assembly process, promotes production efficiency, reduces manual cost, space utilization rate promotes, improves waterproof dustproof performance, prolongs electrical assembly service life, is applicable to the electrical function module of passenger car, commercial vehicle seat, can work stably under the environmental temperature of customer requirement.

Description

Technical Field

[0001] This utility model belongs to the field of seat technology, and in particular relates to a foam structure for a seat. Background Technology

[0002] In traditional car seat manufacturing, wiring harnesses and foam are usually assembled separately, requiring manual assembly to fix them together, which has the following drawbacks:

[0003] 1. Requires additional auxiliary parts (small disc + clip), resulting in high consumable costs.

[0004] 2. The electrical components and foam body are not securely fixed, and the wiring harness is prone to breakage or component displacement due to vibration.

[0005] 3. The split structure takes up a lot of space, making it difficult to meet the requirements for a thinner and lighter seat design.

[0006] 4. Poor waterproof and dustproof performance, and electrical failures are likely to occur with long-term use.

[0007] 5. The bottom surface of the foam has a wire harness groove (at least 20mm deep), which hinders the free flow of chemical materials and makes the product prone to defects. Summary of the Invention

[0008] The purpose of this invention is to provide a foamed seat structure that saves on materials, enhances the bonding strength between electrical components and foam, ensures reliability under vibration, achieves a thinner and more integrated seat structure, improves waterproof and dustproof performance, extends the service life of electrical components, and has a good appearance.

[0009] The purpose of this utility model is to solve the following problem:

[0010] A foam structure for a seat includes a foam body that can be installed on the seat. A wire harness and electrical components are integrally formed inside the foam body. The wire harness connectors connected to the ends of the wire harness are located in grooves provided on the outside of the foam body and / or on the surface of the foam body.

[0011] As a further optimization of the above technical solution, a protective sleeve is fitted onto the wire harness connector.

[0012] As a further optimization of the above technical solution, the foam is formed by foaming polyurethane foam material in a mold.

[0013] As a further optimization of the above technical solution, the wire harness inside the foam body is covered with a PVC insulation layer that is resistant to temperatures above 125°C.

[0014] As a further optimization of the above technical solution, the cross-sectional area of ​​the wire harness is 0.5mm²-2.5mm².

[0015] As a further optimization of the above technical solution, a supporting steel wire is provided in the foam body. The supporting steel wire includes multiple transverse steel wires and multiple longitudinal steel wires. The transverse steel wires and longitudinal steel wires are connected to each other in the foam body to form the supporting steel wire. The supporting steel wire has an upward bend at the rear and a downward bend at the front.

[0016] As a further optimization of the above technical solution, the distance between the position of the wire harness in the foam body and the lower surface of the foam body is greater than or equal to 10mm.

[0017] The advantages of this invention compared to the prior art are:

[0018] 1. This utility model has an integrated function: the foam body of the seat, the wiring harness, and the electrical components are physically fixed and integrated through a synchronous foaming process, avoiding the drift of the wiring harness position and exposed wear.

[0019] 2. This utility model, through integrated design, embeds the wire harness within the foam body, eliminating the need for post-assembly, simplifying the assembly process, improving production efficiency, reducing labor costs, enhancing the bonding strength between electrical components and the foam body, ensuring reliability under vibration environments, saving auxiliary consumables, and reducing material costs.

[0020] 3. This utility model achieves a lightweight and thin design, optimizes the spatial layout, and realizes a lightweight and integrated seat structure. The foam body integrates wiring harnesses and electrical components, and the distance from the wiring harness to the foam surface is greater than or equal to 10mm, thereby improving space utilization.

[0021] 4. Through a simplified design, the wiring harness and electrical components are placed inside the foam, which is groove-free and the wiring harness is not exposed. The appearance is flat and simple, resulting in a good product appearance, improved waterproof and dustproof performance, and extended service life of electrical components.

[0022] 5. This utility model is applicable to the electrical function module of passenger car and commercial vehicle seats, and can work stably at the ambient temperature required by the customer. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0024] Figure 2 This is a three-dimensional schematic diagram of the supporting steel wire and wire harness of this utility model.

[0025] Figure 3 This is a cross-sectional view of the fastener of this utility model. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figures 1-3 :

[0027] A foam structure for a seat includes a foam body 10 that can be installed on the seat. A wiring harness 30 and electrical components (such as sensors, switches, heaters, massagers, controllers, etc.) are integrally formed inside the foam body 10. The wiring harness 30 has a wiring harness connector 31 connected to its end, which is located outside the foam body 10 and / or in a groove provided on the surface of the foam body 10. The connector is connected to the seat's functional components and the vehicle's electrical system.

[0028] As a further optimization of the above technical solution, a protective sleeve is fitted on the wire harness connector 31. The protective sleeve is used to accommodate the wire harness connector and prevent the foaming material from seeping into the wire harness connector during foaming.

[0029] As a further optimization of the above technical solution, the foam 10 is foamed and formed in a mold using polyurethane foam material. The polyurethane foam material is formed by mixing component A (isocyanate) and component B (polyether polyol) in a certain proportion to form a modified polyurethane foam material (density 30kg / m³-80kg / m³). The polyurethane foaming technology is an existing technology and will not be described in detail here.

[0030] The mixture is injected into the mold cavity through a pouring device, and the material foams and forms inside the mold to wrap the wire harness assembly.

[0031] As a further optimization of the above technical solution, the wire harness 30 is covered with a PVC insulation layer 32 that is resistant to temperatures above 125°C.

[0032] As a further optimization of the above technical solution, the cross-sectional area of ​​the wire harness 30 is 0.5mm²-2.5mm².

[0033] As a further optimization of the above technical solution, a supporting steel wire is provided in the foam body. The supporting steel wire 20 includes multiple transverse steel wires 21 and multiple longitudinal steel wires 22. The transverse steel wires 21 and longitudinal steel wires 22 are connected to each other in the foam body 10 to form a supporting steel wire. The supporting steel wire has an upward bending part 23 at the rear and a downward bending part 24 at the front.

[0034] As a further optimization of the above technical solution, the distance between the position of the wire harness 30 arranged in the foam body 10 and the lower surface of the foam body 10 is greater than or equal to 10mm, so as to prevent the wire harness 30 from being damaged due to deformation of the foam body 10.

[0035] To facilitate the positioning of the wire harness 30, electrical components, and supporting steel wire 20 within the mold during foaming, a fixing component 40 is provided on the mold. The fixing component 40 has a fixing part at one end of the main body and a C-shaped clamping part at the other end. The wire harness 30 is snapped into the C-shaped clamping part. The ends of the C-shaped clamping part are respectively provided with outward folded parts 42 to prevent scratching the wire harness 30, etc. The fixing part is fixed to the mold by one or a combination of screws 45, binding wires, and buckles.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that simple substitutions or modifications can still be made to the technical solutions or technical features described in the foregoing embodiments, and these simple substitutions or modifications do not cause the essence of the corresponding technical solutions to deviate from the spirit and substance of the technical solutions of the embodiments of this utility model, and are still within the protection scope of this utility model.

Claims

1. A foam structure for a seat, comprising a foam body that can be installed on the seat, characterized in that: The foam body integrally forms a wire harness and electrical components. The wire harness connector at the end is located in a groove on the surface of the foam body or outside the foam body. A sheath is fitted on the wire harness connector. The wire harness inside the foam body is covered with a PVC insulation layer that is resistant to temperatures above 125°C. A support wire is provided inside the foam body. The support wire includes multiple transverse wires and multiple longitudinal wires. The transverse and longitudinal wires are interconnected within the foam body to form the support wire. The support wire has an upward bend at the rear and a downward bend at the front. The fixing component has a fixing part at one end of the main body and a C-shaped clamping part at the other end. The fixing part is fixed to the mold by one or a combination of screws, binding wires, and buckles. The wire harness is clamped in the C-shaped clamping part. The ends of the C-shaped clamping part are respectively provided with outward folds.

2. The foam structure of a seat according to claim 1, characterized in that: The foam is formed by foaming polyurethane foam material in a mold.

3. The foam structure of a seat according to claim 1, characterized in that: The cross-sectional area of ​​the wire harness is 0.5mm²-2.5mm².

4. The foam structure of a seat according to claim 1, characterized in that: The distance between the wire harness and the lower surface of the foam body is greater than or equal to 10 mm.

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