A foam cushion having a heating wire

Abstract

The utility model relates to chair technical field especially a kind of foam pad with heating wire, including, heat preservation foam, heat preservation foam is sequentially provided with support foam and soft foam;Heating assembly, the heating assembly is installed in the inside of the support foam, the inside of the support foam is provided with multiple U-shaped clamps, the U-shaped clamp is clamped and fixed in the surface of the heating assembly, first hot melt adhesive layer is attached and arranged between the heat preservation foam and the support foam, second hot melt adhesive layer is attached and arranged between the support foam and the soft foam, the utility model is fixed by the attachment of first hot melt adhesive layer and second hot melt adhesive layer to the heat preservation foam, support foam, soft foam, form the composite system of functional layering, structure integration, middle layer support foam fixed heating assembly and provide structural support, provide stable form for overall pad, avoid soft foam excessive collapse.

Description

Technical Field

[0001] This utility model relates to the field of seat technology, and in particular to a foam pad with heating wires. Background Technology

[0002] Foam padding is the core filling and support material inside most seats (including car seats, home sofas, office chairs, dining chairs, etc.). Its performance directly determines the comfort, support and service life of the seat. Car seats usually have heating functions, so a foam padding with heating wires is needed.

[0003] Existing foam padding with heating wires has some shortcomings in use: the heating wires are mostly sewn directly to the surface of the foam padding. When the seat is under pressure for a long time, the heating wires are prone to displacement or loosening, resulting in local overheating or heating blind spots. In addition, the long-term deformation of the foam padding will squeeze the heating wires, affecting the service life.

[0004] To address these issues, those skilled in the art have proposed a foam pad with heating wires. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the problems of electric heating wires being prone to displacement or loosening in the above or existing technologies, this utility model is proposed.

[0007] Therefore, the purpose of this invention is to provide a foam pad with a heating wire.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a foam pad with heating wire, comprising, heat-insulating foam, wherein supporting foam and soft foam are sequentially disposed on the heat-insulating foam;

[0009] A heating component is installed inside the supporting foam, and the supporting foam is provided with multiple U-shaped clips that are snapped and fixed to the surface of the heating component.

[0010] As a preferred embodiment of the foam pad with heating wire of the present invention, a first hot melt adhesive layer is provided between the heat-insulating foam and the supporting foam.

[0011] As a preferred embodiment of the foam pad with heating wire of this utility model, a second hot melt adhesive layer is provided between the supporting foam and the soft foam.

[0012] As a preferred embodiment of the foam pad with heating wire of this utility model, the insulating foam is made of polyurethane insulating foam and the thickness of the insulating foam is 3-8mm.

[0013] As a preferred embodiment of the foam pad with heating wire of this utility model, the supporting foam is made of rigid polyurethane foam and the thickness of the supporting foam is 5-10mm.

[0014] As a preferred embodiment of the foam pad with heating wire of this utility model, the soft foam is made of aerogel composite foam and the thickness of the soft foam is 2-5mm.

[0015] As a preferred embodiment of the foam pad with heating wire of this utility model, the surface of the supporting foam is provided with a serpentine groove, one end of the serpentine groove is provided with a wire outlet hole, one end of the wire outlet hole extends to the outside of the supporting foam, and a plastic protective sleeve is provided inside the wire outlet hole.

[0016] As a preferred embodiment of the foam pad with heating wire of this utility model, a heat-conducting sheet is fixed on the inner wall of the serpentine groove, and the surface of the heat-conducting sheet is flush with the surface of the supporting foam.

[0017] As a preferred embodiment of the foam pad with heating wire of this utility model, the heating component includes an electric heating wire, which is fixed inside the serpentine groove. The U-shaped clip is attached to the surface of the electric heating wire and snapped into the inside of the serpentine groove. One end of the electric heating wire is provided with a wire, which is inserted into the inside of the plastic protective sleeve.

[0018] The beneficial effects of this invention on a foam pad with a heating wire are as follows:

[0019] The serpentine groove provides a defined path for the heating wires, which are precisely laid along the groove to avoid local stacking caused by irregular placement. At the same time, the serpentine structure maximizes the coverage of the heating wires within the supporting foam, laying the foundation for uniform heating. The U-shaped clips can firmly lock the heating wires in the groove through their own elasticity, so that even if the seat is under pressure for a long time, the heating wires will not shift or loosen due to foam deformation.

[0020] Insulating foam, supporting foam, and soft foam are bonded together by a first hot melt adhesive layer and a second hot melt adhesive layer, forming a composite system with functional layers and integrated structure. The upper soft foam can conform to the curves of the human body to improve riding comfort. The middle supporting foam fixes the heating components and provides structural support, providing a stable shape for the overall padding and preventing the soft foam from collapsing excessively. The lower insulating foam locks heat inside the padding, improving energy utilization efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0022] Figure 1 This is a schematic diagram of the overall structure of a foam pad with heating wires.

[0023] Figure 2 This is a schematic diagram of the supporting foam structure for a foam pad with heating wires.

[0024] Figure 3 for Figure 2 Exploded view.

[0025] Figure 4 for Figure 3 A magnified structural diagram at point A.

[0026] In the diagram: 1. Insulating foam; 2. First hot melt adhesive layer; 3. Supporting foam; 301. Serpentine groove; 302. Heat-conducting sheet; 303. Cable outlet; 304. Plastic protective sleeve; 305. U-shaped clip; 4. Second hot melt adhesive layer; 5. Soft foam; 6. Heating component; 601. Electric heating wire; 602. Wire. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example

[0030] Reference Figures 1 to 4 This is the first embodiment of the present invention. This embodiment provides a foam pad with heating wires, which can achieve the effect that the heating wires will not shift or loosen due to foam deformation under long-term pressure on the seat. It includes heat-insulating foam 1, on which supporting foam 3 and soft foam 5 are arranged in sequence.

[0031] Heating component 6 is installed inside the supporting foam 3. Multiple U-shaped clips 305 are provided inside the supporting foam 3, and the U-shaped clips 305 are snapped and fixed to the surface of the heating component 6.

[0032] The three-layer foam structure, consisting of insulating foam 1, supporting foam 3, and soft foam 5, provides load-bearing support. The heating component 6 is fixed inside the supporting foam 3, ensuring that the electric heating wire does not shift or loosen under long-term pressure on the seat.

[0033] The U-shaped clamp 305 applies continuous clamping force from above or to the side of the heating component through its clamping structure, locking the heating component in a preset position inside the support foam 3.

[0034] Specifically, a first hot melt adhesive layer 2 is bonded between the thermal insulation foam 1 and the supporting foam 3.

[0035] Furthermore, a second hot melt adhesive layer 4 is bonded between the supporting foam 3 and the soft foam 5.

[0036] After the first hot melt adhesive layer 2 and the second hot melt adhesive layer 4 are cured, they have strong adhesion and can firmly bond the two adjacent foam layers together, so that the thermal insulation foam 1, the supporting foam 3 and the soft foam 5 form a unified whole that works together to prevent heat loss between layers.

[0037] Among them, the material of thermal insulation foam 1 is polyurethane thermal insulation foam, and the thickness of thermal insulation foam 1 is 3-8mm.

[0038] Polyurethane insulation foam itself has the characteristics of low thermal conductivity and closed-cell structure. Insulation foam 1 can prevent the heat generated by heating component 6 from being lost to the outside of the pad.

[0039] The supporting foam 3 is made of rigid polyurethane foam, and its thickness is 5-10mm.

[0040] Rigid polyurethane foam has the characteristics of high shape retention, medium hardness and resistance to compression deformation. Support foam 3 has strong resistance to compression deformation. Even with frequent sitting or sitting for a long time, it will not sag or distort its shape, and can maintain the overall support of the padding.

[0041] Among them, the material of soft foam 5 is aerogel composite foam, and the thickness of soft foam 5 is 2-5mm.

[0042] When in use, the upper soft foam 5 can conform to the curves of the human body, improving riding comfort. Example

[0043] Reference Figures 1 to 4 This is the second embodiment of the present invention. Unlike the previous embodiment, the surface of the supporting foam 3 has a serpentine groove 301. One end of the serpentine groove 301 has a wire outlet hole 303. One end of the wire outlet hole 303 extends to the outside of the supporting foam 3. A plastic protective sleeve 304 is provided inside the wire outlet hole 303.

[0044] The serpentine groove 301 provides a defined path for the heating component 6, which is precisely laid along the groove to avoid local stacking caused by irregular placement.

[0045] Specifically, a heat-conducting plate 302 is fixed on the inner wall of the serpentine groove 301, and the surface of the heat-conducting plate 302 is flush with the surface of the supporting foam 3.

[0046] The heat-conducting plate 302 fits into the inner wall of the serpentine groove 301 and is in contact with the heating component 6, which can evenly transfer and diffuse heat and avoid local overheating of the heating component.

[0047] Furthermore, the heating assembly 6 includes an electric heating wire 601, which is fixed inside the serpentine groove 301. A U-shaped clip 305 is attached to the surface of the electric heating wire 601 and snapped into the inside of the serpentine groove 301. One end of the electric heating wire 601 is provided with a wire 602, which is inserted into the inside of the plastic protective sleeve 304.

[0048] During use, one end of the wire 602 is connected to a thermostat to adjust the temperature. The wire 602 is inserted into the plastic protective sleeve 304 inside the outlet hole 303. The plastic protective sleeve 304 can prevent the wire from direct contact with the edge of the outlet hole.

[0049] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A foam pad with a heating wire, characterized in that: include, Thermal insulation foam (1), on which a supporting foam (3) and a soft foam (5) are sequentially arranged; Heating component (6) is installed inside the supporting foam (3). Multiple U-shaped clips (305) are provided inside the supporting foam (3). The U-shaped clips (305) are snapped and fixed to the surface of the heating component (6).

2. The foam pad with heating wire as described in claim 1, characterized in that: A first hot melt adhesive layer (2) is bonded between the thermal insulation foam (1) and the supporting foam (3).

3. The foam pad with heating wire as described in claim 1 or 2, characterized in that: A second hot melt adhesive layer (4) is bonded between the supporting foam (3) and the soft foam (5).

4. The foam pad with heating wire as described in claim 1, characterized in that: The insulation foam (1) is made of polyurethane insulation foam and the thickness of the insulation foam (1) is 3-8mm.

5. The foam pad with heating wire as described in claim 1, characterized in that: The supporting foam (3) is made of rigid polyurethane foam and has a thickness of 5-10 mm.

6. The foam pad with heating wire as described in claim 1, characterized in that: The soft foam (5) is made of aerogel composite foam and has a thickness of 2-5 mm.

7. The foam pad with heating wire as described in claim 1, characterized in that: The surface of the supporting foam (3) has a serpentine groove (301), one end of the serpentine groove (301) has a wire outlet hole (303), one end of the wire outlet hole (303) extends to the outside of the supporting foam (3), and a plastic protective sleeve (304) is provided inside the wire outlet hole (303).

8. The foam pad with heating wire as described in claim 7, characterized in that: A heat-conducting plate (302) is fixed on the inner wall of the serpentine groove (301), and the surface of the heat-conducting plate (302) is flush with the surface of the supporting foam (3).

9. The foam pad with heating wire as described in claim 7, characterized in that: The heating assembly (6) includes an electric heating wire (601), which is fixed inside the serpentine groove (301). The U-shaped clip (305) is attached to the surface of the electric heating wire (601) and snapped into the inside of the serpentine groove (301). One end of the electric heating wire (601) is provided with a wire (602), which is inserted into the inside of the plastic protective sleeve (304).

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