Safe sterilizing electric blanket

Abstract

The utility model belongs to the field of electric blankets, and particularly relates to a safe sterilizing electric blanket. Comprising a flexible heating part, the flexible heating part comprises at least two wrapping layers, and heating elements are distributed between the two adjacent wrapping layers in parallel in a close winding mode; the device further comprises a controller and ultra-long flexible sensors, the controller at least comprises a detection unit for detecting non-electric quantity signals such as capacitance and inductance and at least one conversion unit for converting the non-electric quantity signals into electric signals, and the ultra-long flexible sensors are densely wound and distributed between the two adjacent wrapping layers and electrically connected with the controller. By arranging the flexible sensor and the controller, the temperature rise condition of the electric blanket is monitored, when unsafe factors occur, for example, when a human body makes contact with the electric blanket, the controller cannot set the sterilization mode or quit the sterilization mode immediately, only a safe temperature rise mode can be executed, and the situation that the electric blanket hurts a user after wrong operation is prevented; therefore, safe sterilization is realized.

Description

Technical Field

[0001] The utility model belongs to the field of electric blankets, and in particular relates to a safe sterilizing electric blanket. Background Art

[0002] Most of the sterilization and antibacterial electric blankets currently on the market use the following methods to make the fabrics have sterilization and antibacterial functions: using a special manufacturing process to attach silver ions to the surface of the electric blanket fabric fibers, and using the silver ions to sterilize; using materials with antibacterial properties to make the fabric, and using the fabric to inhibit bacteria; adding Chinese medicine bags or functional layers soaked in Chinese medicine inside or on the surface of the electric blanket, and heating the electric blanket to volatilize the Chinese medicine, thereby achieving the effect of antibacterial or sterilization;

[0003] The above methods all have the problem that the sterilization effect is not long-lasting or can only inhibit bacteria instead of sterilizing, and increase the manufacturing cost.

[0004] High temperature can sterilize. However, electric blankets are flexible electric heating appliances. The blanket material has good thermal insulation performance but poor thermal conductivity. To achieve the sterilization effect, the blanket surface needs to reach a high temperature. Therefore, when the electric blanket is in the sterilization state, it is dangerous to the human body. At present, there is no effective, low-cost, and easy-to-operate solution for safe sterilization. Utility Model Content

[0005] The utility model aims to provide a safe sterilization electric blanket, comprising a flexible heating component, wherein the flexible heating component comprises a heating element and two or more wrapping layers, wherein the heating element is parallel and closely wound between two adjacent wrapping layers;

[0006] It also includes a controller and an extra-long flexible sensor, wherein the controller includes at least one detection unit for detecting non-electrical signals such as capacitance and inductance and at least one conversion unit for converting non-electrical signals into electrical signals, and the extra-long flexible sensor is densely wound and distributed between two adjacent wrapping layers, and the extra-long flexible sensor is electrically connected to the controller. The entire blanket surface is monitored by sensors densely distributed throughout the flexible heating component. If a dangerous situation requiring power outage occurs, the controller will disconnect the power supply and stop heating to avoid causing harm to the human body.

[0007] Furthermore, the heating element includes a heating wire and an insulating layer, the insulating layer is wrapped around the heating wire, and the ultra-long flexible sensor is arranged in the insulator of the heating element. By integrating with the heating element, there is no need for an extra threading process or a re-arrangement process, thereby reducing production costs.

[0008] Furthermore, the heating element includes at least one heating wire wrapped with an insulating layer, and the ultra-long flexible sensor is coaxially spirally wound in parallel with one or more heating wires inside the heating element. More sensors can detect data on the blanket surface more accurately, improve detection accuracy, and also improve the safety of the electric blanket proposed by the utility model.

[0009] Furthermore, the ultra-long flexible sensor is arranged along the extension direction of the heating wire and is linearly distributed in the heating element. The improvement of this solution not only satisfies the requirement that the flexible sensor is distributed throughout the flexible heating component along with the heating element, but also relatively reduces the use of the flexible sensor and saves material costs.

[0010] Further, the number of the ultra-long flexible sensor is at least one. In this solution, only one sensor is needed, but there may be many sensors to improve the entire solution and avoid the situation where a single sensor and a single type of data collection may cause inaccurate data collection and data interference affecting the operation of the controller.

[0011] Furthermore, the ultra-long flexible sensor is a sensor having both temperature sensing and capacitance sensing characteristics, or a sensor having both temperature sensing and inductance sensing characteristics, or a sensor having both temperature sensing, capacitance sensing and inductance sensing characteristics. This is conducive to coaxially spirally winding flexible sensors with different sensing characteristics in an insulating layer in parallel. This design enables the same production process to produce heating elements with different sensing characteristics, realize the detection of multiple characteristics, and improve detection accuracy and safety.

[0012] In the utility model, the capacitive sensor and the inductive sensor monitor whether there is a human body on the blanket surface. The controller selects a preset working mode by detecting the data variable of the capacitive sensor or the inductive sensor, controls the preset temperature rise or cuts off the power to stop heating. If there is a human body on the blanket surface, the sterilization mode will not be executed, and only the temperature rise mode can be executed. The temperature sensor monitors the temperature rise of the blanket surface.

[0013] Furthermore, the ultra-long flexible sensor is independently wrapped with an insulating layer. The sensors are independently arranged to prevent mutual interference between the sensors and reduce the accuracy of the detection data.

[0014] Furthermore, the heating element adopts a heating element with a line power of 3.2-5.5w / m, an average line spacing of the heating element is 44-55mm, and the flexible heating component has a surface power of 60-100w / m 2 Through many experiments, the optimal value of cost and effect can be obtained by using the above data.

[0015] The beneficial effects of the utility model are:

[0016] By setting up a flexible sensor and a controller, the use status and temperature rise of the electric blanket are monitored. When an unsafe factor occurs, such as human body contact with the electric blanket, the controller cannot set the sterilization mode or immediately exit the sterilization mode, and can only execute the safe temperature rise mode. Prevent the electric blanket from causing harm to the user after erroneous operation. Thus, safe sterilization is achieved. In addition, in the specific design of the utility model, the flexible sensor is set in the insulator of the heating element, which does not affect the existing production process of the electric blanket. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the structure of the heating element shown in Example 1 of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the heating element shown in Example 2 of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the heating element shown in Example 3 of the utility model;

[0021] Figure 4 It is a schematic diagram of the electric blanket of the utility model.

[0022] Figure Number:

[0023] 1. Heating wire; 2. Extra-long flexible sensor; 3. Insulation layer; 4. Heating element; 5. Controller; 6. Wrapping layer; 7. Row spacing; 8. Junction box; 9. Flexible heating component. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0026] Example 1

[0027] like Figure 1 and Figure 4 As shown, the utility model describes a safe and sterilizing electric blanket, comprising a flexible heating component 9, wherein the flexible heating component 9 comprises a heating element 4, two or more wrapping layers 6, wherein the heating element 4 is parallel and closely wound between two adjacent wrapping layers 6; and further comprises a controller 5 and an extra-long flexible sensor 2, wherein the controller 5 comprises at least one detection unit for detecting non-electrical signals such as capacitance and inductance and at least one conversion unit for converting non-electrical signals into electrical signals, wherein the extra-long flexible sensor 2 is closely wound between two adjacent wrapping layers 6, and the extra-long flexible sensor 2 is electrically connected to the controller 5.

[0028] The use status and temperature rise of the electric blanket are monitored by sensors densely distributed throughout the flexible heating component 9. If a dangerous situation that may cause harm to the human body occurs, the controller automatically selects to execute a safe heating mode or cuts off the power to stop heating to avoid causing harm to the human body.

[0029] There are many dangerous situations mentioned here, for example, when the temperature of the electric blanket is high during the sterilization mode, someone suddenly sits or lies on the blanket; or someone sits or lies on the blanket and selects the sterilization mode.

[0030] Of course, in this embodiment, the setting of the working mode, such as the setting and control of the temperatures of insulation, heating, sterilization and mite removal, the limitation of the maximum temperature, the judgment of whether to power off, etc., are all completed by the controller 5. These functions of the controller 5 are existing technologies and are not the objects protected by the present utility model.

[0031] The sensor 2 of this embodiment may be one or more sensors having two sensing characteristics at the same time, for example, a sensor having temperature sensing characteristics and capacitance sensing characteristics, or a sensor having temperature sensing characteristics and inductance sensing characteristics, so as to meet different design requirements. Of course, the ultra-long flexible sensor 2 described in this embodiment may also be a sensor having temperature sensing characteristics, capacitance sensing characteristics and inductance sensing characteristics at the same time.

[0032] In order to make the solution of the utility model as convenient to produce as possible and save costs, the super-long flexible sensor 2 described in this embodiment is arranged in the insulator 3 of the heating element 4 and separated from the heating wire. If there are multiple super-long flexible sensors 2, they are arranged in the insulator 3 of the heating element 4 in the same way. The flexible sensor is synchronously arranged in the insulator 3 while the electric blanket is wired, and is electrically connected to the controller 5 through the junction box 8. This embodiment does not change the existing production process of the electric blanket, and is easy for manufacturers to mass produce.

[0033] As an optimization, flexible sensors 2 with different sensing characteristics can be coaxially spirally wound in parallel with one or more heating wires 1 inside the heating element 4 in different insulating layers. This design allows the same production process to produce heating elements 4 with different sensing characteristics.

[0034] In order to achieve the sterilization effect of the flexible heating component 9, the preferred line power of the utility model embodiment is 3.2-5.5w / m, the average line spacing 7 is 44-55mm, and the electric blanket surface power is 60-100w / m 2 .

[0035] Example 2

[0036] There are many other ways to arrange the ultra-long flexible sensor 2 in the insulator 3 of the heating element 4, such as Figure 2 As shown, as one of the preferred methods, the extra-long flexible sensor 2 can also be arranged along the extension direction of the heating wire, and distributed in a straight line in the insulator 3 of the heating element 4. The rest of the parts are the same as those in Example 1. This arrangement will significantly reduce the use of the flexible sensor 2 and reduce material costs.

[0037] Example 3

[0038] refer to Figure 3 The ultra-long flexible sensor 2 of the utility model can also be independently wrapped with an insulating layer, and then arranged together with the heating wire wrapped with the insulating layer in the heating element 4. In this way, the detection data of the ultra-long flexible sensor 2 can be more accurate, so that the sterilization effect of the electric blanket can be truly reflected, and the safety of the electric blanket can be improved.

[0039] In summary, the utility model provides a safe and sterilizable electric blanket, which arranges an extra-long flexible sensor 2 in the insulator 3 of the heating element 4 so that the flexible sensor 2 is distributed throughout the flexible heating component 9 of the electric blanket along with the arrangement of the heating element 4. The controller 5 monitors the relevant data of the flexible sensor 2 to achieve safe sterilization of the electric blanket.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A safe sterilizing electric blanket, characterized in that: It comprises a flexible heating component, wherein the flexible heating component comprises a heating element and at least two wrapping layers, wherein the heating element is parallel and closely wound between two adjacent wrapping layers; It also includes a controller and an ultra-long flexible sensor. The ultra-long flexible sensor is densely distributed between two adjacent wrapping layers, and the ultra-long flexible sensor is electrically connected to the controller.

2. A safe sterilizing electric blanket according to claim 1, characterized in that: The heating element comprises a heating wire and an insulating layer, wherein the insulating layer is wrapped around the heating wire, and the ultra-long flexible sensor is arranged in the insulating layer of the heating element and separated from the heating wire.

3. A safe sterilizing electric blanket according to claim 2, characterized in that: The heating element comprises at least one heating wire wrapped with an insulating layer, and the ultra-long flexible sensor is coaxially spirally wound in parallel with one or more heating wires inside the heating element.

4. A safe sterilizing electric blanket according to claim 2, characterized in that: The super-long flexible sensor is arranged along the extending direction of the heating wire and is distributed in a linear shape in the heating element.

5. A safe sterilizing electric blanket according to claim 3 or 4, characterized in that: The number of the ultra-long flexible sensor is at least one.

6. A safe sterilizing electric blanket according to claim 5, characterized in that: The ultra-long flexible sensor is a sensor having both temperature sensing and capacitance sensing characteristics, or a sensor having both temperature sensing and inductance sensing characteristics, or a sensor having both temperature sensing, capacitance sensing and inductance sensing characteristics.

7. A safe sterilizing electric blanket according to claim 6, characterized in that: The ultra-long flexible sensor is independently wrapped with an insulating layer.

8. The safe sterilizing electric blanket according to claim 7, characterized in that: The heating element adopts a heating element with a line power of 3.2-5.5w / m, an average line spacing of the heating element is 44-55mm, and the flexible heating component has a surface power of 60-100w / m 2 Flexible heating components.

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