Double-zone temperature control electric blanket

Abstract

The utility model discloses a kind of double-area temperature control electric blanket, it relates to electric blanket field, and its technical scheme main point is: including electric blanket main body and two heating bodies, the position of two heating bodies on the electric blanket main body forms first temperature zone and second temperature zone, it is characterized by: metal heat-conducting sheet is equipped between the first temperature zone and second temperature zone, its thickness is 0.1-0.3 millimeter, the metal heat-conducting sheet surface is formed nanometer ceramic coating by chemical vapor deposition method.The utility model passes through between first temperature zone and second temperature zone and is arranged metal heat-conducting sheet with specific structure and performance, effectively improve the heat conduction of two temperature zone middle part, reduce temperature sudden change condition, the surface of electric blanket main body uses coral fleece fabric, coral fleece fabric texture is soft, warm-keeping is good, can improve the comfortable feeling when user contacts electric blanket.

Description

Technical Field

[0001] This utility model relates to the field of electric blankets, and more specifically, it relates to a dual-zone temperature-controlled electric blanket. Background Technology

[0002] An electric blanket, also known as an electric mattress, is a contact-type electric heating appliance. It incorporates specially made, high-insulation-performance soft cable heating elements in a serpentine pattern into the blanket, emitting heat when powered on.

[0003] Chinese Patent Publication No. CN203424682U discloses a dual-temperature, dual-control electric blanket with zoned heating, comprising a heating element, a blanket body, a power cord, a connector, and a control box. The blanket body contains two independently temperature-controlled heating elements, allowing for separate heating of the upper and lower halves of the blanket during use. The control box has two independent temperature setting mechanisms, with the set temperature being the upper limit of the heating temperature. The control box also includes a temperature feedback program. When the temperature sensor detects that the heating element temperature exceeds the set temperature, the program treats this as an anomaly and stops heating. When the detected temperature is 5°C lower than the set temperature, the program resolves the anomaly and heating resumes, thus achieving precise temperature control of the upper and lower halves of the electric blanket.

[0004] Currently, dual-zone independent temperature control electric blankets are widely used in the market. These blankets feature two independent temperature control zones, catering to the personalized temperature needs of different users and greatly enhancing the user experience. For example, couples may have different temperature preferences while sleeping; a dual-zone independent temperature control electric blanket allows each person to adjust the temperature of their respective zone, providing convenience.

[0005] However, existing dual-zone independent temperature-controlled electric blankets have significant drawbacks. Because the two temperature zones are controlled relatively independently, a sudden temperature change occurs in the middle of the zone. When the user is at the boundary between the two zones, different parts of the body will feel a noticeable temperature difference. This discomfort not only affects sleep quality, but long-term use may also lead to health problems such as muscle aches due to uneven temperature distribution. Furthermore, this sudden temperature change problem limits the further promotion of dual-zone independent temperature-controlled electric blankets and hinders improvements in user satisfaction. Therefore, an improvement solution is urgently needed to address the issue of sudden temperature changes at the boundary between the temperature zones in dual-zone independent temperature-controlled electric blankets. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a dual-zone temperature control electric blanket.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a dual-zone temperature-controlled electric blanket, comprising an electric blanket body and two heating elements, wherein the positions of the two heating elements on the electric blanket body form a first temperature zone and a second temperature zone, a metal heat-conducting sheet with a thickness of 0.1-0.3 mm is provided between the first temperature zone and the second temperature zone, the surface of the metal heat-conducting sheet is coated with a nano-scale ceramic coating by chemical vapor deposition, the metal heat-conducting sheet has a regularly arranged honeycomb-shaped hollow structure, and the hollow part accounts for 30%-50%, a 2-3 mm thick memory foam flexible buffer layer is provided at the edge of the metal heat-conducting sheet, the memory foam flexible buffer layer is made of slow rebound polyurethane foam material, and a heat insulation layer is provided between the metal heat-conducting sheet and the heating elements of the first and second temperature zones, the heat insulation layer being used to prevent the metal heat-conducting sheet from directly contacting the heating elements.

[0008] The present invention is further configured such that: the electric blanket body is provided with a horizontally arranged folding indicator line, and a plurality of metal heat-conducting sheets are provided, the plurality of metal heat-conducting sheets are arranged in an array and the folding indicator line is located between adjacent metal heat-conducting sheets.

[0009] The present invention is further configured such that the material of the metal heat-conducting sheet is one of aluminum, copper or aluminum alloy.

[0010] The present invention is further configured such that the metal heat-conducting sheet is fixed to the fabric of the electric blanket body between the first temperature zone and the second temperature zone by means of high-temperature resistant adhesive or sewing.

[0011] The present invention is further configured such that the two ends of the metal thermally conductive sheet are located at the center of the first temperature zone and the second temperature zone, respectively.

[0012] The present invention is further configured such that the surface of the electric blanket body is made of coral fleece fabric.

[0013] In summary, this invention offers the following advantages: By incorporating a metal heat-conducting sheet with specific structure and performance between the first and second temperature zones, heat conduction in the middle section of the two zones is effectively improved, reducing sudden temperature changes. The nano-level ceramic coating ensures the safety and durability of the metal heat-conducting sheet; the honeycomb-shaped hollow structure achieves a balance between weight, cost, and thermal conductivity; the memory foam flexible cushioning layer enhances user comfort and product stability; and the insulation layer strengthens product safety. Consequently, when the user is at the boundary of the temperature zones, the temperature difference felt by different parts of the body is significantly reduced, improving sleep quality, reducing the risk of health problems caused by uneven temperature distribution, and addressing the main shortcomings of existing dual-zone independent temperature-controlled electric blankets. This is beneficial for product promotion and improved user satisfaction. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a partial structural diagram of the present invention. Figure 1 , used to indicate the heating element and the first and second temperature zones;

[0016] Figure 3 This is a partial structural diagram of the present invention. Figure 2 , used to indicate thermal insulation layers and metal thermally conductive sheets.

[0017] In the diagram: 1. Electric blanket body; 2. Heating element; 3. First temperature zone; 4. Second temperature zone; 5. Metal heat-conducting sheet; 6. Memory foam flexible buffer layer; 7. Insulation layer; 8. Folding indicator line. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0019] A dual-zone temperature-controlled electric blanket, such as Figure 1 Figure 2 and Figure 3 As shown, the electric blanket includes a main body 1 and two heating elements 2. A first temperature zone 3 and a second temperature zone 4 are formed at the positions of the two heating elements 2 on the main body 1. A thin metal heat-conducting sheet 5 with a thickness of 0.2 mm is placed between the first temperature zone 3 and the second temperature zone 4. In actual production, this thickness ensures good thermal conductivity without compromising the softness and foldability of the electric blanket due to excessive thickness. By placing a thin metal heat-conducting sheet 5 with specific structure and performance between the first temperature zone 3 and the second temperature zone 4, heat conduction in the middle of the two temperature zones is effectively improved, reducing sudden temperature changes. This significantly reduces the temperature difference felt by different parts of the body when the user is at the boundary of the temperature zones, improving sleep quality, reducing the risk of health problems caused by uneven heating, and solving the main defects of existing dual-zone independent temperature-controlled electric blankets. This is beneficial for product promotion and improving user satisfaction.

[0020] As shown in Figure 2 and Figure 3 As shown, the two ends of the metal heat-conducting sheet 5 are located in the center of the first temperature zone 3 and the second temperature zone 4, respectively. This positioning allows heat to be evenly conducted from the center of the temperature zone to the boundary, minimizing the sudden temperature change at the boundary of the temperature zone and providing users with a more comfortable temperature experience.

[0021] As shown in Figure 2 and Figure 3As shown, a nano-scale ceramic coating is formed on the surface of the metal heat-conducting sheet 5 using chemical vapor deposition. This coating is characterized by high temperature resistance and good insulation, effectively preventing oxidation of the metal heat-conducting sheet 5 during long-term use and avoiding safety hazards caused by leakage. The metal heat-conducting sheet 5 features a regularly arranged honeycomb-shaped perforated structure, with the perforated portion accounting for 40%. This structural design reduces the weight of the metal heat-conducting sheet 5 while ensuring thermal conductivity, lowering costs and enabling more uniform heat distribution. A 2.5 mm thick memory foam flexible buffer layer 6, made of slow-rebound polyurethane foam, is located at the edge of the metal heat-conducting sheet 5. This buffer layer effectively cushions the thermal expansion and contraction stress caused by temperature changes, while providing a more comfortable feel for the user. A heat insulation layer 7, made of fabric, is provided between the metal heat-conducting sheet 5 and the heating element 2 in the first temperature zone 3 and the second temperature zone 4. The heat insulation layer 7 is sewn and fixed inside the electric blanket body 1 to prevent direct contact between the metal heat-conducting sheet 5 and the heating element 2, avoiding localized overheating and improving product safety.

[0022] like Figure 1 and Figure 3 As shown, the electric blanket body 1 has horizontally arranged folding indicator lines 8, and multiple metal heat-conducting sheets 5 are arranged in an array, with the folding indicator lines 8 located between adjacent metal heat-conducting sheets 5. In actual use, when the user needs to fold the electric blanket, they can fold it along the folding indicator lines 8 to avoid damaging the metal heat-conducting sheets 5 due to arbitrary folding, thus extending the service life of the electric blanket. At the same time, the array distribution of multiple metal heat-conducting sheets 5 further enhances heat conduction and uniformity at the temperature zone boundaries.

[0023] like Figure 3 As shown, the metal heat-conducting sheet 5 is made of aluminum, copper, or an aluminum alloy. In this embodiment, an aluminum alloy is selected as the material for the metal heat-conducting sheet 5. Aluminum alloy has good thermal conductivity, is lightweight, and moderately priced. While ensuring thermal conductivity, it reduces product costs, making it suitable for large-scale production applications.

[0024] like Figure 3 As shown, the metal heat-conducting sheet 5 is fixed to the fabric of the electric blanket body 1 between the first temperature zone 3 and the second temperature zone 4 by high-temperature adhesive or sewing. In this embodiment, the metal heat-conducting sheet 5 is fixed to the fabric of the electric blanket body 1 between the first temperature zone 3 and the second temperature zone 4 by high-temperature adhesive. This fixing method is simple to operate, has a firm fixing effect, and can ensure that the metal heat-conducting sheet 5 will not shift during long-term use, thus ensuring the stability of heat conduction.

[0025] like Figure 1As shown, the surface of the electric blanket body 1 is made of coral fleece fabric. Coral fleece fabric is soft and has good warmth retention, which can improve the comfort of users when in contact with the electric blanket and further enhance the user experience of the product.

[0026] The above are merely preferred embodiments 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 within its protection scope. 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 its protection scope.

Claims

1. A dual-zone temperature-controlled electric blanket, comprising a blanket body (1) and two heating elements (2), wherein the positions of the two heating elements (2) on the blanket body (1) form a first temperature zone (3) and a second temperature zone (4), characterized in that: A metal heat-conducting sheet (5) with a thickness of 0.1-0.3 mm is provided between the first temperature zone (3) and the second temperature zone (4). The surface of the metal heat-conducting sheet (5) is coated with a nano-scale ceramic coating by chemical vapor deposition. The metal heat-conducting sheet (5) has a regularly arranged honeycomb hollow structure, and the hollow part accounts for 30%-50%. A memory foam flexible buffer layer (6) with a thickness of 2-3 mm is provided at the edge of the metal heat-conducting sheet (5). The memory foam flexible buffer layer (6) is made of slow rebound polyurethane foam material. A heat insulation layer (7) is provided between the metal heat-conducting sheet (5) and the heating element (2) of the first temperature zone (3) and the second temperature zone (4). The heat insulation layer (7) is used to prevent the metal heat-conducting sheet (5) from directly contacting the heating element (2).

2. The dual-zone temperature-controlled electric blanket according to claim 1, characterized in that: The electric blanket body (1) is provided with a horizontally arranged folding indicator line (8), and there are several metal heat-conducting sheets (5). The several metal heat-conducting sheets (5) are arranged in an array and the folding indicator line (8) is located between adjacent metal heat-conducting sheets (5).

3. The dual-zone temperature-controlled electric blanket according to claim 1, characterized in that: The metal heat-conducting sheet (5) is made of aluminum, copper or aluminum alloy.

4. The dual-zone temperature-controlled electric blanket according to claim 1, characterized in that: The metal heat-conducting sheet (5) is fixed to the fabric of the electric blanket body (1) between the first temperature zone (3) and the second temperature zone (4) by high-temperature adhesive or sewing.

5. The dual-zone temperature-controlled electric blanket according to claim 1, characterized in that: The two ends of the metal thermally conductive sheet (5) are located at the center of the first temperature zone (3) and the second temperature zone (4), respectively.

6. The dual-zone temperature-controlled electric blanket according to claim 1, characterized in that: The surface of the electric blanket body (1) is made of coral fleece fabric.

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