An electric blanket for uniform heating
By setting up a heat spreader and a heat-conducting layer inside the electric blanket, the problem of uneven heat distribution in electric blankets is solved, achieving uniform heating of the electric blanket surface and improving safety. It also supports the detachable replacement of the heating wire.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAOXING YIXUN HOME TEXTILE CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-06-05
AI Technical Summary
The heat from existing electric blankets is concentrated near the heating wire, resulting in excessively high local temperatures and a risk of burns.
A heat spreader and a heat-conducting layer are installed inside the electric blanket. The heat spreader evenly transfers the heat from the heating wires to the surface of the blanket, and the heat-conducting layer woven from carbon fiber yarn and graphene sheets are used to improve the heat transfer efficiency, thereby achieving uniform heating of the electric blanket surface.
It achieves uniform temperature on the surface of the electric blanket, reduces the risk of local overheating, improves safety, and supports the detachable replacement and cleaning of the heating wire.
Smart Images
Figure CN224329596U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric blanket technology, and more specifically, to a uniform heating electric blanket. Background Technology
[0002] An electric blanket, also known as an electric mattress, is a contact-type electric heating appliance. It incorporates specially designed, high-insulation, soft-cord heating elements in a serpentine pattern into or sewn into the blanket. When powered on, it generates heat and is mainly used to raise the temperature inside the blanket while people sleep to achieve the purpose of warmth. It can also be used to dehumidify bedding.
[0003] Since electric blankets rely on the heat generated by heating wires to achieve a warming effect, the heat of the electric blanket is concentrated near the heating wires, resulting in uneven heat distribution. Localized excessively high temperatures can cause burns to the user.
[0004] Therefore, a new solution is needed to address this problem. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a uniform heating electric blanket.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a heat-equalizing electric blanket, comprising a blanket and an electric heating wire located inside the blanket, the electric heating wire being coiled in a serpentine shape, the electric heating wire comprising a straight portion and a curved portion, a heat-equalizing plate being detachably connected between the straight portions, the blanket comprising a first blanket layer and a second blanket layer, the first blanket layer and the second blanket layer being provided with a heat-conducting layer, and the electric heating wire being detachably connected to the first blanket layer or the second blanket layer.
[0007] By adopting the above technical solution, a heat spreader is set between adjacent straight sections, so that the heat on the straight sections can be transferred to the heat spreader, achieving a uniform heat effect. Furthermore, a heat-conducting layer is set on the first and second blanket layers, so that the heat from the heating wire and the heat spreader is evenly transferred to the surfaces of the first and second blanket layers. The heating wire is detachably connected, allowing for replacement.
[0008] The present invention is further configured such that: the length of the heat spreader is equal to the length of the straight section, the width of the heat spreader is equal to the distance between adjacent straight sections, and receiving grooves for accommodating the straight sections are provided on both sides of the heat spreader.
[0009] By adopting the above technical solution, by setting the length of the heat spreader to the length of the straight section, the width of the heat spreader to be equal to the distance between adjacent straight sections, and by opening receiving grooves on both sides of the heat spreader to accommodate the straight sections, the heat spreader can slide in or out between adjacent straight sections, thus achieving a detachable connection.
[0010] The present invention is further configured such that the receiving groove is semi-circular and has the same diameter as the straight section.
[0011] By adopting the above technical solution, and by setting the shape of the receiving groove to be semi-circular and equal to the diameter of the straight part, the heat spreader can be tightly attached to obtain a good heat conduction effect, and the heat spreader can be limited in the upper and lower positions.
[0012] The present invention is further configured such that: the heating wire is provided with a plurality of protrusions, and the heat spreader is provided with a plurality of concave points for being engaged by the protrusions.
[0013] By adopting the above technical solution, by setting protrusions on the heating wire and opening concave points on the heat spreader, the protrusions are squeezed and deformed by the heat spreader and then locked into the concave points, which can limit the heat spreader and keep it in a fixed position and transfer heat during the use of the electric blanket.
[0014] The present invention is further configured such that: the heat-conducting layer is located on the side of the first blanket layer and the second blanket layer facing the heating wire, and the heat-conducting layer is woven from carbon fiber yarn.
[0015] By adopting the above technical solution, and by setting the heat-conducting layer to face the heating wire, and by making the heat-conducting layer woven from carbon fiber yarn, the heat from the heating wire and the heat spreader can continue to be transferred through the heat-conducting layer, so that the surface of the electric blanket can be heated evenly.
[0016] The present invention is further configured such that a graphene sheet is fixedly connected to the side of the heat-conducting layer facing the heating wire.
[0017] By adopting the above technical solution, and by setting graphene sheets on the side of the heat-conducting layer facing the heating wire, the heat transfer effect of the heat-conducting layer is improved, making the surface temperature of the electric blanket more uniform.
[0018] The present invention is further configured such that: a fixing strap for fixing the bent part is fixedly connected to the side of the first blanket layer or the second blanket layer facing the heating wire.
[0019] By adopting the above technical solution, the heating wire can be fixed by setting a fixing strap to fix the bent part.
[0020] The present invention is further configured such that: a male Velcro strap is fixedly connected to the side of the fixing strap facing the heating wire, and a female Velcro strap is provided on the first or second blanket layer that is detachably connected to the male Velcro strap.
[0021] By adopting the above technical solution, by setting a male Velcro strap on the fixing belt and a female Velcro strap on the first or second blanket layer, the male and female Velcro straps are detachably bonded, so that the heating wire can be detachably fixed on the first or second blanket layer.
[0022] In summary, this utility model has the following beneficial effects:
[0023] By setting a heat spreader between adjacent straight sections, heat from the straight sections can be transferred to the heat spreader, achieving heat dissipation. A heat-conducting layer is set on the first and second blanket layers. The heat-conducting layer is woven from carbon fiber yarn, thus having good thermal conductivity. This allows the heat from the heating wire and the heat spreader to be evenly transferred to the surfaces of the first and second blanket layers. The heating wire is detachably connected, allowing for replacement. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of this utility model;
[0025] Figure 2 Partial cross-sectional view of this utility model Figure 1 ;
[0026] Figure 3 Partial cross-sectional view of this utility model Figure 2 ;
[0027] Figure 4 Partial cross-sectional view of this utility model Figure 3 .
[0028] In the diagram: 1. Straight section; 2. Curved section; 3. Heat spreader; 4. First blanket layer; 5. Second blanket layer; 6. Heat-conducting layer; 7. Receiving groove; 8. Protrusion; 9. Concave point; 10. Graphene sheet; 11. Fixing strap; 12. Male Velcro strap; 13. Female Velcro strap. Detailed Implementation
[0029] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0030] A type of uniform heating electric blanket, such as Figure 1As shown, the device includes a blanket and an electric heating wire located within the blanket. The electric heating wire is coiled in a serpentine shape and includes a straight section 1 and a curved section 2. A heat spreader 3 is detachably connected between the straight sections 1. By setting the heat spreader 3 between adjacent straight sections 1, the heat on the straight sections 1 can be transferred to the heat spreader 3, achieving the effect of heat dissipation. The blanket includes a first blanket layer 4 and a second blanket layer 5. A heat-conducting layer 6 is provided on the first blanket layer 4 and the second blanket layer 5, and the heat on the electric heating wire and the heat spreader 3 is evenly transferred to the surface of the first blanket layer 4 and the second blanket layer 5. The electric heating wire is detachably connected to the first blanket layer 4 or the second blanket layer 5, and the electric heating wire can be replaced by setting the detachably connected electric heating wire.
[0031] like Figure 1 and Figure 2 As shown, the heat spreader 3 is made of copper and has good thermal conductivity. The length of the heat spreader 3 is equal to the length of the straight section 1, and the width of the heat spreader 3 is equal to the distance between adjacent straight sections 1. The heat spreader 3 has receiving grooves 7 on both sides to accommodate the straight sections 1. By setting the length of the heat spreader 3 to the length of the straight section 1 and the width of the heat spreader 3 to the distance between adjacent straight sections 1, and by setting receiving grooves 7 on both sides of the heat spreader 3 to accommodate the straight sections 1, the heat spreader 3 can slide in or out between adjacent straight sections 1, achieving a detachable connection. The receiving grooves 7 are semi-circular and have the same diameter as the straight section 1. By setting the shape of the receiving grooves 7 to be semi-circular and equal to the diameter of the straight section 1, the heat spreader 3 can fit tightly, achieving good thermal conductivity, and can limit the vertical movement of the heat spreader 3.
[0032] like Figure 2 As shown, the heating wire has several protrusions 8, and the heat spreader 3 has several recesses 9 for being engaged by the protrusions 8. By setting protrusions 8 on the heating wire and recesses 9 on the heat spreader 3, the protrusions 8 are deformed by the heat spreader 3 and then engaged with the recesses 9, which can limit the heat spreader 3, so that the heat spreader 3 remains in a fixed position and transfers heat during the use of the electric blanket.
[0033] like Figure 4 As shown, the heat-conducting layer 6 is located on the side of the first blanket layer 4 and the second blanket layer 5 facing the heating wire. The heat-conducting layer 6 is woven from carbon fiber yarn. By setting the heat-conducting layer 6 to face the heating wire and making it woven from carbon fiber yarn, the heat from the heating wire and the heat spreader 3 can continue to be transferred through the heat-conducting layer 6, so that the surface of the electric blanket can be heated evenly. A graphene sheet 10 is fixed to the side of the heat-conducting layer 6 facing the heating wire with AB glue. By setting the graphene sheet 10 on the side of the heat-conducting layer 6 facing the heating wire, the heat transfer effect of the heat-conducting layer 6 is improved, making the surface temperature of the electric blanket more uniform.
[0034] like Figure 1 , Figure 3 and Figure 4 As shown, one side of the first blanket layer 4 and the second blanket layer 5 is fixed by needle and thread, and the other three sides are closed by zippers. The side of the first blanket layer 4 or the second blanket layer 5 facing the heating wire is sewn with a fixing strap 11 for fixing the bent part 2. By fixing the bent part 2 with the fixing strap 11, the heating wire can be fixed. The side of the fixing strap 11 facing the heating wire is fixed with a Velcro male adhesive 12. The first blanket layer 4 or the second blanket layer 5 is sewn with a Velcro female adhesive 13 that is detachably connected to the Velcro male adhesive 12. The Velcro male adhesive 12 has a hook side, and the Velcro female adhesive 13 has a loop side. By setting the Velcro male adhesive 12 on the fixing strap 11 and the Velcro female adhesive 13 on the first blanket layer 4 or the second blanket layer 5, the Velcro male adhesive 12 and the Velcro female adhesive 13 are detachably bonded, so that the heating wire is detachably fixed to the first blanket layer 4 or the second blanket layer 5.
[0035] Working process: When the electric blanket is working, the heating wire generates heat. At this time, the heat from the straight part 1 is transferred to the heat spreader 3 and the graphene sheet 10, and the heat from the curved part 2 is transferred to the graphene sheet 10. During this process, the heat transferred from the straight part 1 is greater than that from the curved part 2, so that a part of the heat from the curved part 2 is transferred to the straight part 1. When the temperature of the graphene sheet 10 rises, the heat on the graphene sheet 10 is transferred to the heat-conducting layer 6, and then the heat-conducting layer 6 evenly transfers the heat to the surface of the electric blanket.
[0036] When the heating wire and blanket can be replaced and cleaned separately, the operator pulls the zipper to open the first blanket layer 4 and the second blanket layer 5. Then, the operator pulls the fixing strap 11 to separate the male Velcro 12 and the female Velcro 13. The operator then takes out the heating wire. The operator then pulls the heat spreader 3. At this time, the protrusion 8 is deformed by the heat spreader 3 and slides out of the concave point 9. Then, the heat spreader 3 slides along the straight part 1. Then, the straight part 1 separates from the receiving groove 7. The operator can then replace the heating wire.
[0037] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A uniform heating electric blanket, comprising a blanket and heating wires located within the blanket, wherein the heating wires are coiled in a serpentine shape, characterized in that: The heating wire includes a straight section (1) and a curved section (2), and a heat spreader (3) is detachably connected between the straight sections (1). The blanket includes a first blanket layer (4) and a second blanket layer (5), and a heat-conducting layer (6) is provided on the first blanket layer (4) and the second blanket layer (5). The heating wire is detachably connected to the first blanket layer (4) or the second blanket layer (5).
2. The uniform heating blanket according to claim 1, characterized in that: The length of the heat spreader (3) is equal to the length of the straight section (1), the width of the heat spreader (3) is equal to the distance between adjacent straight sections (1), and the heat spreader (3) has receiving grooves (7) on both sides for accommodating the straight sections (1).
3. The uniform heating blanket according to claim 2, characterized in that: The receiving groove (7) is semi-circular and has the same diameter as the straight section (1).
4. The uniform heating blanket according to claim 3, characterized in that: The heating wire is provided with several protrusions (8), and the heat spreader (3) is provided with several concave points (9) for being engaged by the protrusions (8).
5. The uniform heating blanket according to claim 1, characterized in that: The heat-conducting layer (6) is located on the side of the first blanket layer (4) and the second blanket layer (5) facing the heating wire, and the heat-conducting layer (6) is woven from carbon fiber yarn.
6. The uniform heating blanket according to claim 5, characterized in that: A graphene sheet (10) is fixedly connected to the side of the heat-conducting layer (6) facing the heating wire.
7. The uniform heating blanket according to claim 1, characterized in that: The first blanket layer (4) or the second blanket layer (5) is fixedly connected to a fixing strap (11) for fixing the bent part (2) on the side facing the heating wire.
8. The uniform heating blanket according to claim 7, characterized in that: The fixing band (11) is fixedly connected to the side facing the heating wire with a hook and loop fastener (12), and a hook and loop female fastener (13) is provided on the first blanket layer (4) or the second blanket layer (5) to be detachably connected to the hook and loop fastener (12).