TWM471257U - Flexible single-sided heating device - Google Patents

Description

Flexible single-sided heating device

This creation is a heat-generating device, especially one that has flexible properties and enables uniform and rapid diffusion of heat sources and one-way conduction of heat sources.

Referring to FIG. 1 , a conventional heat generating device has a heat storage layer 100 having a certain area, and the heat storage layer 100 is provided with a uniformly distributed heating wire 101. Generally, a nickel-chromium wire is used, and the heating wire 101 is transmitted through a wire. The circuit is connected to a power input terminal 102. The power input terminal 102 is provided with a connector 103 for plugging the external power supply, and the upper and lower sides of the heat storage layer 100 (shown in the direction of the drawing) are respectively provided. The insulating layer 110 is used to insulate the heating wire 101 from direct contact with the user to avoid the risk of electric shock. On the surface of the two insulating layers 110, a woven fabric surface 120 is respectively provided, and the surface of the cloth surface 120 is provided. The effect of air permeation exchange efficiency is used as a heat exchange effect for adjusting contact with the human body.

The conventional heat-generating functional device can be applied to an electric heating mat or the like, but it is mainly composed of a conventional heating wire 101 and combined with the fabric cloth surface 120. Therefore, the following disadvantages exist:

1. The heating wire 101 is too hard, so that the heating device made by the heating coil is naturally not easy to carry, so the application type is limited, and it usually appears in the application form of household items, such as an electric blanket.

2. The heating wire 101 is not conducive to processing, and it is very difficult to manufacture a wearable heating device.

3. The above heating device between the heating wire 101 and the human body, further requires at least one or more layers of thick fabric cloth 120 to be insulated to protect the human body from damage, and the heating wire 101 is not soft, resulting in the heating wire 101. There is still a considerable distance from the body that needs to keep warm, and the natural heating effect is discounted.

4. The power supply supplied by the above devices is mostly AC power. In addition to high power, electromagnetic wave insulation must be done, otherwise the induced current is induced. There is a potential danger for patients who use heart rate adjustment.

5. Since the heating device has a small heat source path area, the resistivity is high, and the heat source conduction area is small, resulting in large power consumption, which is very likely to occur when the user improperly uses or does not understand the product use mode.

6. The material properties of the above heating wire 101 may deteriorate with the use time, and then an unfavorable phenomenon such as hardening, embrittlement, and oxidation may occur. If the heating device is improperly handled or placed in this case, the heating wire 101 is likely to be caused. When it breaks, it will generate sparks when it is used, causing the heating line to escape from fire and cause fire.

7. This type of heating device is not waterproof, and the air is still in direct contact with the heating wire, so the heating wire is easily oxidized and affects the life. It can't be washed or washed. Usually, the cloth cover is put on, but only the cloth cover can be cleaned.

In view of the shortcomings of the prior art described above, the present invention has developed a flexible single-sided heat generating device in which a conductive metal wire is formed into a heat generating layer, and the heat generating layer is designed with a heat insulating layer on one side. In this way, not only can the versatile shape be increased, but also a unidirectional conduction heat source, so that the heat conduction effect and the heat storage efficiency are increased.

In order to achieve the above object, the present invention provides a single-sided heat generating device, the device comprising at least: a heat insulating layer composed of a flexible material having flexibility and good flexibility; and a heat generating layer adhered thereto On the heat insulating layer, the heat generating layer is composed of a plurality of conductive metals for heat generation. If necessary, the outer layer of the conductive metal wire may be covered with an insulating material such as a rayon fabric or a polymer material to prevent the heat generating materials from contacting each other by themselves. And short-circuiting, the conductive metal wire is electrically connected to a power input terminal by an electric circuit to control the temperature at which the metal wire generates heat; thus, most of the heat source generated by the heat generating layer is blocked by the heat insulating layer The heat is only unidirectionally conducted in the opposite direction of the heat insulating layer to generate heat; in addition, the heat generating layer area may be smaller than the heat insulating layer, but the conductive metal wire is evenly distributed in a sufficiently large heating area to increase the temperature and heat preservation efficiency. Reach the best.

According to the above feature, the heat generating layer is provided with a flexible metal layer, and the flexible metal layer is a film layer having a good planar heat conduction function, and is used as a heat conducting layer to make the heat of the heat generating layer more Uniform diffusion to the entire metal layer.

According to the above feature, an insulating layer between the flexible metal layer and the heat generating layer may be provided The insulating layer is made of an insulating material which is flexible and has good flexibility to prevent the conductive metal wire of the heat generating layer from being electrically short-circuited with the flexible metal layer.

In some applications, if the heating device is applied to the product in contact with the human body, according to the above feature, a slip-proof waterproof layer is further disposed under the heat insulating layer, and the anti-slip waterproof layer is composed of a porous textile. It has the function of preventing combustion, waterproof and antifouling. These products can be used on beds or bedding that need to be temporarily fixed.

Another application, according to the above feature, is provided with a porous fabric on the insulating layer which improves the touch of contact with human skin and is in contact with the skin. The porous textile material can be plain weave, knitted or non-woven fabric; the material is polyester multi-layer fiber, which has the characteristics of gas permeable, heat insulation, shading line, moisture absorption, etc., and can prevent burning, waterproof and anti-fouling. The convection of the heat between the heat and the textile is convected, and the contact temperature is further adjusted to conduct the heat uniformly and stably to the skin.

The electric heating mat made by this creation is sent to the Standards Inspection Bureau of the Ministry of Economic Affairs for inspection and fully complies with the national standards: CNS13783-1 (electromagnetic compatibility requirements for home appliances, power tools and similar devices), CNS3765 (household and similar) The safety of electrical products used, as well as the European electrical inspection standard: ICE60335-2-17, obtained the type approval certificate issued by the Standards Inspection Bureau of the Ministry of Economics: it can be seen that this creation uses safety and shielding electromagnetic waves. Confirmed and approved.

10‧‧‧Insulation layer

20‧‧‧heat layer

21‧‧‧ warp yarn

22‧‧‧ Weft

23‧‧‧Electrical wire

24‧‧‧Electrical circuit

30‧‧‧ Controller

32‧‧‧Power input

40‧‧‧Insulation

50‧‧‧Flexible metal layer

54‧‧‧Second insulation

60‧‧‧Slip waterproof layer

Figure 1 is a schematic illustration of a conventional device.

Figure 2 is a perspective exploded view of the creation of the creation.

Figure 2a is an enlarged schematic view of the heat generating layer at the time of creation.

Attachment, which is a schematic diagram of the heating effect of the present invention and the conventional heating device at the same energization time under room temperature conditions.

The present invention discloses a flexible single-sided heating device, which can be widely applied to electric heating mats, heat pads, electric blankets, warm seat cushions and the like; please refer to the figures 2 and 2a, which is one of the creations of this creation. For example, it is composed of the following layers from the bottom to the top in the drawing direction, and each layer has a flexible property: a heat insulating layer 10 composed of a flexible insulating material, which is flexible The thermal conductivity of the curved insulating material is less than 0.3 W/m.k, and more than 80% of the heat can be almost isolated and not dissipated.

The flexible heat insulating material may be a high molecular polymer or a foaming material thereof, such as a PU composite, PVA, etc., which is characterized by insulation, heat insulation, good flexibility, and elasticity like rubber.

The material used in this product can have good flexibility even at minus 50 ° C, good chemical stability, good anti-aging and ozone resistance, and no toxicity; the heat insulating layer 10 can block the heat transfer to the outside, and has a large Part of the heat energy unilaterally needs to pass the heating direction, avoiding nearly half of the unnecessary heat energy dissipation and reducing the heating power consumption.

a heat generating layer 20 is stacked on the heat insulating layer 10, and the heat generating layer 20 can be closely adhered to the heat insulating layer 10, and the heat generating layer 20 is composed of a plurality of heat-generating and conducting metal wires. When the outer layer of the metal wire is made of warp yarns 21 and weft yarns 22 which are made of general rayon fibers, the warp yarns may be mixed with the warp yarns 22, and the warp yarns 21 or the plurality of weft yarns 22 of the fabric may also be mixed with the conductive metal wires. 23 is blended and blended, in this embodiment, the woven body is mixed with a conductive metal wire 23 (as shown in FIG. 2a) in a plurality of warp yarns 21, and the resistivity of the conductive metal wire 23 is 10 Ω.m. When a current passes through the metal, heat is generated due to electrical resistance.

The conductive metal wire 23 may be composed of a metal, an aluminum alloy, a titanium alloy, a composite material prepared from an alloy and a ceramic material, or a mixture of the two. The conductive metal wire 23 is connected to a controller 30 by another electric circuit 24 to control the temperature of the metal heating. The controller 30 can be used by the user to preset the heating temperature and time to allow the heat generating layer 20 to be at a fixed time. The internal energy can be maintained at a certain temperature, and the controller 30 can provide a 12-stage temperature selection, which allows the user to adjust to the required temperature.

The controller 30 is connected to a power input terminal 32 for converting an AC power source into a DC power source. The power input terminal 32 is connected to an external AC power source to supply current to the conductive metal line 23 to make the conductive metal line 23 When the heat is generated, the power input terminal 32 has a circuit for reducing electromagnetic waves, which can reduce electromagnetic waves.

An insulating layer 40 is stacked on the heat generating layer 20, and the insulating layer 40 is made of a flexible insulating material.

a flexible metal layer 50 stacked on the insulating layer 40, the flexible The metal layer 50 is a film body composed of a flexible metal. The flexible metal layer 50 can be an aluminum foil extending into a film shape, and has heat conduction and shielding electromagnetic waves, so that the heat of the heat generating layer 20 can be more uniformly diffused. To the plane, and evenly transfer heat to the outside, let the hot air mix to form a micro-gas convective layer, increasing the warmth.

Thus, by blocking the insulating layer 40, most of the heat source generated by the heat generating layer 20 is only unidirectionally transmitted to the flexible metal layer 50, so that the heat source is uniformly diffused and the heat conduction is rapid, and the heating efficiency is generally double. It is twice the direction heating (as shown in the attached article, it is at 28 °C under room temperature conditions, and the heating effect diagram of the same heating time in the creation and the conventional heating device). Moreover, the insulating layer 40 is formed with circuit insulation protection to prevent the heat generating layer 20 from being short-circuited with the flexible metal layer 50.

In addition, the flexible metal layer 50 is provided with a second insulating layer 54 which is made of a flexible insulating material bristles, and the bristles are woven by POLYESTER (long fiber), because of the use of long fibers, It is non-absorbent, waterproof and insulated, and can increase the thickness and warm air stay space, and maintain heat and temperature for a long time. It is a good thermal insulation material.

The above layers can be combined for sewing, fitting or any common connection method in the industry.

In this way, by the blocking of the heat insulating layer 10, most of the heat sources generated by the heat generating layer 20 are only conducted in a single-sided direction for heat generation, and no unnecessary heat energy is dissipated, so that the heat insulating effect is best, and Since each layer has flexible bending characteristics, it can be made into various areas or shapes as needed, which is convenient for the user to wear or carry; and because the flexible metal layer 50 conducts heat conduction, the heat can be more uniformly spread. It is flat to the surface and accelerates the conduction of heat. At the same time, if it is driven by AC power, it can also provide the function of shielding the electromagnetic wave of the heating layer, and completely protect the user.

Furthermore, the present invention may be further provided with a non-slip waterproof layer 60 under the heat insulating layer 10, that is, on the opposite side of the heat generating layer 20, and the anti-slip waterproof layer 60 is composed of a porous textile. It can be plain weave, knitted or non-woven; the ideal layer can be made of non-woven fabric, non-woven material, which is made of polyester multi-layer fiber, which has the characteristics of breathable, heat-insulating, shading, moisture absorption, etc. The utility model has the functions of preventing combustion, waterproof and antifouling; in addition, the anti-slip waterproof layer 60 can be provided with a rough surface, a sliding strip, a sliding block (grain), a sliding column, and a stop Any of the structures of the sliding net, the anti-slip molding pad (not limited to the geometric shape) or a combination thereof, which has a slip preventing function.

Each of the above layers is made of a flexible material, so that the device has flexible characteristics, so that it does not have the disadvantages of being cumbersome and difficult to clean, and the electric heating pad, the heat pad, the electric blanket, and the warmth made by the creation. The cushions and other items are flexible and easy to use and carry.

In summary, this creation is the first creation in terms of article, shape, structure and structure, and can improve various shortcomings of conventional technology. It can enhance the effect in use, is practical, and fully meets the requirements for creating patents. The ideal creation.

10‧‧‧Insulation layer

20‧‧‧heat layer

24‧‧‧Electrical circuit

30‧‧‧ Controller

32‧‧‧Power input

40‧‧‧Insulation

50‧‧‧Flexible metal layer

54‧‧‧Second insulation

60‧‧‧Slip waterproof layer

Claims (9)

A flexible single-sided heating device comprises at least: a heat insulating layer composed of a flexible heat insulating material; and a heat generating layer stacked on the heat insulating layer, the heat generating layer being a conductive metal wire And the area of the heat generating layer is less than or equal to the area of the heat insulating layer, and the conductive metal wires are electrically connected to the power input end by an electric circuit; an insulating layer is disposed on the heat generating layer, and the insulating layer is Made of a flexible insulating material; a flexible metal layer attached to the insulating layer, which is a film body composed of a flexible metal. The flexible single-sided heat generating device according to claim 1, wherein the flexible insulating material of the heat insulating layer has a thermal conductivity of less than 0.3 W/m.k. The flexible single-sided heat generating device according to claim 1, wherein the conductive metal wire has a resistivity of between 1 and 10 Ω·m. The flexible single-sided heat generating device according to claim 1, wherein the conductive metal wire is an alloy, a composite material prepared from an alloy and a ceramic material, or a mixture of the two. The flexible single-sided heat generating device according to claim 1, wherein the conductive metal wire is an aluminum alloy or a titanium alloy. The flexible single-sided heat generating device according to claim 1, wherein the heat generating layer is a metal outer layer which can be covered with an insulating material or a textile. The flexible single-sided heat generating device according to claim 1, wherein the flexible metal layer is a film-like aluminum foil. The flexible single-sided heat generating device according to claim 1, wherein the heat insulating layer is provided with a slip-proof waterproof layer on the opposite side of the combined heat generating layer, and the sliding waterproof layer can be provided with a rough surface and a non-slip Any structure of the strip, the stop slider, the anti-slip column, the anti-slip net, the anti-slip molding pad or a combination thereof. The flexible single-sided heat generating device according to claim 1, wherein the anti-slip waterproof layer is composed of a porous textile, and the porous textile may be plain weave, knitted or non-woven fabric.