TWM483038U - Heating device of electric carpet - Google Patents

Description

Electric heating (ground) blanket heating device

The present invention relates to a heating device for an electric heating (ground) carpet, and more particularly to an electric heating device for an electric heating (ground) blanket having a heating element such as an electric heating film, an electric heating wire, a carbon fiber cloth, or a carbon fiber wire.

The flexible and lightweight nature of the flexible sheet heater makes it universally placed on clothing, knee pads, waist protectors, gloves, insoles, earmuffs or lumbar support to provide a warm wrap for the human body.

The structure of the conventional flexible sheet heater mainly comprises: a metal circuit formed by chemical etching or stamping of a metal thin plate, a stack of two soft heat-resistant insulating sheets sandwiching the metal circuit therein and two power wires connecting the metal The two ends of the loop extend beyond the two insulating sheets to provide a current through the metal loop to generate heat. Another conventional flexible sheet heater comprises: a first soft heat-resistant insulating sheet, a carbon circuit printed on the insulating sheet by a printing technique, and a second soft heat-resistant insulating sheet laminated to the first soft material. The heat-resistant insulating sheet is covered with the carbon circuit therein; likewise, the heater comprises two power supply wires respectively connected to the two ends of the carbon circuit and extending outside the two insulating sheets. Although the above two conventional flexible sheet heaters have thin and light characteristics, they cannot be folded and can only be slightly bent, and thus are greatly limited in application. system. Or, when it is made into a large-area item such as an electric blanket or a quilt, it will be hard due to insufficient flexibility.

Taiwan Publication No. I308465 discloses a method for manufacturing a flexible sheet-shaped heater using a conductive woven fabric as a heat source, which comprises the steps of: preparing a conductive woven fabric and a support member, the support member being a PET film. And an acrylic adhesive attached to one side of the PET film; the acrylic adhesive is adhered to one side of the conductive woven fabric in a pressurized manner, and the PET film is combined with the conductive woven fabric; Stamping the conductive woven fabric into a heating element having a predetermined circuit pattern; respectively, coating a conductive adhesive on the two end points of the heating element and respectively bonding a power supply wire, and affixing the PET film to the heating element A flexible protective sheet of thermoplastic material is applied to the other side of the one side; after the PET film is removed, a flexible protective sheet of thermoplastic material is applied to the other side of the heat-generating element to which one surface of the protective sheet is attached. The manufacture of the flexible heater is completed. However, this heater has the disadvantage that an additional mold must be opened and the mold is stamped into a predetermined loop pattern on a conductive woven fabric. Such a practice will inevitably complicate the process and result in a large increase in cost, and the design impedance is not elastic. The flexible sheet heater made by this method is only suitable for small clothes, knee pads, waist protectors, gloves, insoles, It is not applicable to articles such as earmuffs or lumbar support, and cannot be applied to items such as electric heating blankets or quilts. Therefore, the manufacturing method of the flexible sheet-shaped heater using the conductive woven fabric as a heat source is still known. There are missing and there is room for improvement.

The purpose of the present invention is to provide an electric heating (ground) blanket heating device, which is an electric heating film, an electric heating wire, a carbon fiber wire, a carbon fiber cloth as a heating element; The self-adhesive high temperature resistant tape material is coated with a long strip type heating element, and then connected to the opposite ends of the heating element and the tape material by a metal conductor in a series or parallel manner to form a heat generating device, wherein the heat generating device has a plurality of heat generating devices It has excellent flexibility and electrical design flexibility (serial-parallel connection) in a hollow area. It is suitable for large-area items such as electric heating (ground) blankets, and the use of low-voltage DC power supply can avoid human body electric shock and prevent electromagnetic waves.

An electric heating device for achieving the above object comprises: a plurality of heating elements, each of which is separately coated with a tape material, and each of the heating elements is arranged at a distance; a metal conductor, Depending on the required resistance value, each of the heating elements of the tape material is arranged at intervals, and the two ends of the plurality of heating elements are connected in a mixed string and in parallel; and a DC power source is connected to the two metal conductors. End points to form an electrical loop.

Preferably, the heating element is of a long strip type.

Preferably, the metal conductor is a flexible PCB or a copper metal.

Preferably, the heating element is coated with one or two layers of the tape material.

Preferably, the heating element is covered with a layer of the tape material, and the heating element 1 is covered by a U-shaped U-shaped coating method to form two bonding points.

Preferably, the heating element is coated with two layers of the tape material, and the heating element 1 is first covered by a U-shaped U-shaped coating method, and two bonding portions are formed, and then a layer is coated in the same manner. .

Preferably, the heating element is coated with three layers of the tape material.

Preferably, the heating element is coated with three layers of the tape material, and is attached to the innermost layer of the innermost layer of the tape material at the upper side of the heating element, and is interposed between the second layer of the tape material. The base is on the underside of the heat generating component, and the adhesive of the outermost third layer of the tape material is tied to the upper side of the heat generating component.

Preferably, the heating element is coated with three layers of the tape material, and is attached to the innermost first layer. The tape material is coated with the heating element by a coating method of a reversed shape, and the second layer of the tape material is coated. The first layer of the tape material is then coated in a crucible-shaped coating process, and the outermost third layer of the tape material is then coated with a second layer of the tape material in a meandering coating.

Preferably, the heating element is coated with three layers of the tape material, and the heating element is coated with three layers of the tape material, and is tied to the left side of the innermost layer of the tape material. The adhesive portion of the tape material is located on the right side of the heat generating element in the middle second layer, and the adhesive portion of the outermost third layer of the tape material is located on the left side of the heat generating element.

Preferably, the heating element is coated with three layers of the tape material, and is attached to the innermost first layer. The tape material is coated with U and inverted U-shaped coatings to form two bonding layers. Wherein, the second layer of the tape material is further coated with the first layer of tape material and the adhesive portion is formed on the upper side of the heat generating component, and the outermost third layer of the tape material is further coated with the second layer of the tape material and The bond is formed on the underside of the heat generating component.

Preferably, the heat generating device of the present invention is applied to a heat generating system, wherein the heat generating system has a controller electrically connected to the heat generating device, and the control The controller is a temperature controller for adjusting the heating temperature of the heat generating device.

1‧‧‧heating components

2‧‧‧ Tape material

4, 4', 4" ‧ ‧ bonding

5, 6‧‧‧Metal conductors

7‧‧‧heating device

9‧‧‧ Controller

10‧‧‧Fever system

11‧‧‧DC power supply

12‧‧‧ hollow area

13‧‧‧Wire

14‧‧‧ positive power terminal

15‧‧‧Negative power terminal

20‧‧‧ cloth products

The first figure shows a schematic diagram of the heat generating device of the present electric heating (ground) carpet.

The second figure shows a cross-sectional view of a single heating element of the heat generating device of the present electric heating blanket being covered by the tape material.

Fig. 3A is a schematic view showing a first embodiment of a single heating element of the heat generating device of the present electric heating (ground) carpet.

The third B diagram shows a cross-sectional view taken along line C-C of the third A diagram.

Fig. 4A is a schematic view showing a second embodiment of a single heat generating component of the heat generating device of the present electric heating blanket.

The fourth B diagram shows a cross-sectional view taken along line C-C of the fourth A diagram.

The fifth figure is a schematic cross-sectional view showing the combination of the heating element and the tape material of the third embodiment of the single heating element of the heat generating device of the present invention.

Fig. 6 is a schematic cross-sectional view showing the combination of the heating element and the tape material of the fourth embodiment of the single heating element of the heat generating device of the present invention.

The seventh figure shows a block diagram of the heat generating device of the present electric heating (ground) blanket applied to a heat generating system.

Although the present application will refer to the drawings containing the preferred embodiment of the present invention The description is fully described, but it should be understood that those who are familiar with the Bank can modify the content of this article and obtain the effect of this creation. Therefore, it is to be understood that the above description is a broad disclosure of those skilled in the art and is not intended to limit the present invention.

Please refer to the first figure for a schematic diagram of the heat generating device of the present electric heating (ground) carpet. The heat generating device 7 of the present invention comprises: a plurality of heating elements 1 each of which is covered with a tape material 2, and each of the heating elements 1 is arranged at a distance; a metal The conductors 5, 6 are arranged at intervals and covered with each of the heat generating elements 1 of the tape material 2 in a mixed string, connected in parallel to both ends of the plurality of heat generating elements 1; The power source 11 (please refer to the sixth figure) connects the ends of the metal conductors 5, 6 to form an electrical circuit.

In this embodiment, the heating element is a long strip type, and the heating element 1 is made of a material that is easy to obtain - a soft material such as an electrothermal film, an electric heating wire, a carbon fiber cloth, or a carbon fiber yarn. When the heating element 1 is energized, the heating element 1 can generate heat; and the tape material 2 can be PET or PI, and the tape material 2 can withstand high temperature, and the tape material 2 is self-adhesive material, The viscous power is combined with each other; and the DC power source has a positive power terminal 14 and a negative power terminal 15.

In addition, in the present embodiment, each of the heat-generating elements 1 coated with the tape material 2 is arranged in parallel and spaced apart to form a hollowed-out region 12, and the plurality of metal conductors are utilized according to the required resistance value. 5, the two ends of the heat generating component 1 covered with the tape material 2 are connected in parallel with the metal conductor 6, and then the plurality of heat generating components 1 connected in parallel are connected in series, and then the metal is connected by a wire 13. Conductors 5, 6 and The positive power source terminal 14 and the negative power source terminal 15 of the DC power source 11 are provided. The metal conductor 6 is connected to the positive power terminal 14 by the wire 13 , and the metal conductor 5 is connected to the negative power terminal 15 by the wire 13 , and the positive power terminal 14 and the negative power terminal 15 are connected to the current. To form an electrical circuit. When a current is applied to the metal conductors 5, 6, a current flows through the heat generating element 1 to generate heat. When the present heat generating device 7 is covered by the cloth product 20 (for example, a large-area article such as an electric blanket), since it has a plurality of hollowed-out regions 12, the total weight can be greatly reduced and the overall weight can be increased. The softness (the series-parallel manner of the metal conductors 5, 6 can increase the electrical design flexibility) so that the electric heating blanket can still be lightweight and flexible.

It is worth mentioning that the DC power supply of the heating device 7 of the electric heating blanket can be a battery, and the DC power supply of the heating device 7 of the electric heating blanket can also receive an AC by using an adapter. The input of the power source; in addition, the metal conductor 5, 6 of the heat generating device 7 of the present electric heating (ground) blanket is a soft PCB or a copper metal; further, the heat generating device 7 of the present electric heating (ground) blanket is covered with the same The heating element 1 of the tape material 2 may be connected only by a series connection, or by a parallel connection, or may be connected in series and then connected in parallel. This is a common knowledge in the technical field, and can be pushed and understood. This is not illustrated and described in the text.

Please refer to the second figure, which is a cross-sectional view showing that a single heating element of the heat generating device of the present electric heating blanket is covered by the tape material. The heat generating device 7 of the present invention uses a low DC voltage, so that the heating element 1 can only cover one or two layers of the tape material 2, which can reduce the overall thickness. In this example, The second layer is coated for explanation. First, the tape material 2 is used to coat the heat generating component 1 therein. The first layer of the tape material 2 is covered with a U, inverted U-shaped coating method to form the two heat-bonding elements 1 and two adhesive portions 4 are formed, and the second layer is coated with the same coating method. A layer of tape material 2 forms a bond 4'. The bonding portions 4, 4' of the tape material 2 are positioned on the upper side and the lower side of the heat generating element 1, that is, the coating of the heat generating element 1 is completed.

Furthermore, in order to enhance the covering property of the heat-generating component 1 by the tape material 2, the tape material 2 of the heat-generating device 7 of the present electric heating blanket covers the heat-generating component 1 and has four embodiments. Covering, can cover two to three layers, as detailed below.

Please refer to the third A figure and the third B picture, wherein the third A picture shows a schematic diagram of the first embodiment of the single heating element of the heat generating device of the present electric heating (ground) blanket, and the third B picture shows A cross-sectional view of the CC line of the third A diagram. The tape material 2 is coated with the heating element 1 therein, wherein the innermost first layer of the adhesive material 4 of the tape material 2 is located on the upper side of the heating element 1, and the second layer of the tape material 2 is interposed. The bonding portion 4' is located on the lower side of the heating element 1, and the bonding portion 4" of the outermost third layer of the tape material 2 is positioned on the upper side of the heating element 1. It is worth mentioning that: of course, the tape material The bonding points 4, 4', 4" of 2 can also be interactively designed on the left or right side of the heating element 1.

The second embodiment is shown in FIG. 4A and FIG. 4B, and FIG. 4A is a schematic view showing a second embodiment of the single heating element of the heat generating device of the present electric heating blanket. The four-B diagram shows a cross-sectional view of the DD line of the fourth A diagram. The tape material 2 is used to coat the heat-generating component 1 , and the innermost first layer of the tape material 2 is coated with the heat-generating component 1 by a coating method of a reversed shape, and the second layer of the tape material 2 is The first layer of the tape material 2 is coated by a ㄈ-shaped coating method, and the outermost portion The three layers of the tape material 2 are then coated with a second layer of the tape material 2 in a meandering manner.

The third embodiment is shown in the fifth figure, and the fifth figure shows a schematic cross-sectional view of the heating element and the tape material. The tape material 2 is used to coat the heat generating component 1 , and the adhesive portion 4 , 4 ′ , 4 ′′ of the tape material 2 is designed to interact on the left or right side of the heat generating component 1 , which is the first implementation. The deformation of the pattern.

The fourth embodiment is shown in the sixth figure, and the sixth figure is a schematic cross-sectional view showing the combination of the heating element and the tape material. The tape material 2 covers the heat-generating element 1 , and the innermost first layer of the tape material 2 is coated with a U-shaped U-shaped coating method to form the two heat-bonding elements 1 and form two adhesive portions. 4, the second layer of the tape material 2 is further coated with the first layer of tape material 2 and forms the bonding portion 4', and the outermost third layer of the tape material 2 is further coated with the second layer of the tape material 2 and forms a bonding 4". The adhesive portion 4, 4', 4" of the tape material 2 is alternately designed on the upper side, the lower side, the left side and the right side of the heat generating element 1, and is another modification of the first embodiment.

There are other embodiments as needed, and these embodiments may be a hybrid of the first embodiment, the second embodiment, and the third embodiment, wherein the fourth embodiment This is a hybrid type of the first embodiment and the third embodiment.

Please refer to the seventh figure, which is a block diagram showing the heating device of the present electric heating (ground) blanket applied to a heating system, and refers to the first figure. The heat generating system 10 includes: the metal conductor 5, 6 combined with the heat generating component 1 and the heat generating device 7 formed by the tape material 2; a controller 9 electrically connected to the heat generating device 7; 11. Power is supplied to the controller 9. Preferably, the controller 9 is a temperature controller that can be used to adjust the heating temperature of the heat generating device 7 of the present invention. .

The advantages of the creation of the heating device are:

1. The metal conductors are arranged in series and in parallel at opposite ends of the heating element and the tape material to adjust the overall output power, so that the metal characteristics are not limited by the characteristics of the material, and the electrical design is more elastic. .

2. It has a thin and flexible long strip type heating element, which can reduce the material cost, softness and practical characteristics. It can be widely used in large-area (large) items such as electric heating blankets as a source of human body heating. .

3. DC power supply can avoid human body electric shock and prevent electromagnetic waves.

After a detailed description of the preferred embodiments of the present invention, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the scope and spirit of Embodiments of the illustrated embodiments.

1‧‧‧heating components

2‧‧‧ Tape material

5, 6‧‧‧Metal conductors

7‧‧‧heating device

12‧‧‧ hollow area

13‧‧‧Wire

14‧‧‧ positive power terminal

15‧‧‧Negative power terminal

20‧‧‧ cloth products

Claims (12)

An electric heating (ground) blanket heating device comprises: a plurality of heating elements, each of which is separately coated with a tape material, and each heating element is arranged at a distance; a metal conductor, as required a resistance value, which is arranged at intervals and covered with each of the heating elements of the tape material, to connect the two ends of the plurality of heating elements in a mixed string, and to connect the two ends of the plurality of heating elements in a parallel manner; Form an electrical circuit. The heat generating device of the electric heating (ground) blanket according to claim 1, wherein the heating element is of a long strip type. The heat generating device of the electric heating (ground) carpet according to claim 1, wherein the metal conductor is a soft PCB or a copper metal. The heat generating device of the electrothermal (ground) carpet according to claim 1 or 2, wherein the heat generating component is coated with one or two layers of the tape material. The heating device of the electric heating (ground) blanket according to claim 4, wherein the heating material is covered with a layer of the tape material, and the heating element 1 is covered by a U-shaped U-shaped coating method, and Form two bonds. The heat generating device of the electric heating (ground) blanket according to claim 4, wherein the heating material is coated with the second layer of the tape material, and the heating element 1 is first covered by a U-shaped U-shaped coating method. And form two bonds, and then coat the same layer in the same way. The heat generating device of the electrothermal (ground) carpet according to claim 1 or 2, wherein the heat generating component is coated with three layers of the tape material. The heating device of the electric heating (ground) blanket according to claim 7, wherein the heating element is coated with three layers of the tape material, and the bonding of the tape material in the innermost first layer is in the heat generation. On the upper side of the component, the adhesive portion of the tape material is located on the lower side of the heat generating component in the middle second layer, and the adhesive portion of the outermost third layer of the tape material is positioned on the upper side of the heat generating component. The heating device of the electric heating (ground) blanket according to claim 7, wherein the heating element is coated with three layers of the tape material, and is attached to the innermost first layer. The tape material is firstly in the shape of a inverted shape. The heating element is covered by the coating method, and the second layer of the tape material is coated with the first layer of the tape material by a ㄈ-shaped coating method, and the outermost third layer of the tape material is coated with a ㄈ shape. The second layer of the tape material is coated in the middle. The heating device of the electric heating (ground) blanket according to claim 7, wherein the heating element is coated with three layers of the tape material, and the heating element is coated with three layers of the tape material, and is attached to the innermost first The adhesive layer of the tape material is located on the left side of the heat generating component, and the adhesive portion of the tape material is located on the right side of the heat generating component in the middle second layer, and the adhesive layer of the outermost third layer of the tape material is Located on the left side of the heating element. The heating device for an electric heating (ground) blanket according to claim 7, wherein the heating element is coated with three layers of the tape material, and is attached to the innermost first layer. The tape material is U, inverted U shape respectively. The coating method coats the heating element and forms two adhesive portions, and the second layer of the tape material further coats the first layer of tape material and forms a bond. The locating is on the upper side of the heating element, and the outermost third layer of the tape material re-coats the second layer of the tape material and forms an adhesive tie on the underside of the heating element. The heating device of the electric heating (ground) blanket according to claim 1 is applied to a heating system, wherein the heating system has a controller electrically connected to the heating device, and the controller is a temperature controller. It is used to adjust the heating temperature of the heat generating device.