Power-adjustable carbon fiber heating element, heating element combination and power adjusting method

Abstract

The invention relates to a power-adjustable carbon fiber heating element, a heating element combination and a power adjusting method. The power-adjustable carbon fiber heating body comprises a plurality of carbon fiber heating wires, a first wire and a second wire, wherein the carbon fiber heating wires are transversely and uniformly arranged; the first wire and the second wire are longitudinally arranged at the two ends of the carbon fiber heating wires and are used for connecting the carbon fiber heating wires in parallel; the first wire and the second wire are provided with gap parts which are used for cutting off the first wire and the second wire to enable the whole carbon fiber heating body to form a plurality of heating areas which are connected in series. According to the carbon fiber heating body disclosed by the invention, the carbon fiber heating body with non-adjustable power can be changed into the carbon fiber heating body with adjustable power by arranging the notch part, and an integral heating area is adjusted into a mode of connecting a plurality of small heating areas in series. And moreover, the same heating body can be adjusted according to use requirements, so that different heating temperatures can be realized at different positions.

Description

Technical Field

[0001] The invention relates to the technical field of electric heating, and in particular to a power-adjustable carbon fiber heating element, a heating element combination and a power adjustment method. Background Art

[0002] Currently, the carbon fiber heating elements on the market all use a parallel connection to set the carbon fiber heating wire between two wires. The power of this type of carbon fiber heating element is fixed. The way to adjust the power is just to replace different carbon fiber heating wires or use carbon fiber heating wires with different densities. The power of the carbon fiber heating element itself cannot be adjusted. Summary of the invention

[0003] To solve the above problems, the present invention provides a power-adjustable carbon fiber heating element, comprising a plurality of carbon fiber heating wires arranged uniformly in the transverse direction and a first conductor and a second conductor longitudinally arranged at both ends of the carbon fiber heating wires for connecting the plurality of carbon fiber heating wires in parallel; a notch is formed on the first conductor and the second conductor for cutting off the first conductor and the second conductor so that the carbon fiber heating element as a whole is formed with a plurality of heating zones connected in series.

[0004] On the basis of the above solution, the plurality of heating areas on the carbon fiber heating element are arranged in a uniform manner or in a non-uniform manner.

[0005] Based on the above solution, the number of carbon fiber heating wires between any two adjacent notches on the first wire is greater than or equal to ; the number of carbon fiber heating wires between any two adjacent notches on the second wire is greater than or equal to .

[0006] On the basis of the above solution, a notch is provided between the carbon fiber heating wires between any two adjacent notches on the first wire in the second wire.

[0007] Based on the above solution, the number of carbon fiber heating wires between any two adjacent notches on the first conductive wire is equal to the number of carbon fiber heating wires between any two adjacent notches on the second conductive wire.

[0008] Based on the above solution, the number of carbon fiber heating wires between any one notch on the first conductive wire and two notches on the adjacent second conductive wire is equal.

[0009] Based on the above solution, the number of carbon fiber heating wires between any one notch on the first conductive wire and two notches on the adjacent second conductive wire is not equal.

[0010] Based on the above solution, the number of carbon fiber heating wires between any two adjacent notches on the first wire is not equal to the number of carbon fiber heating wires between any two adjacent notches on the second wire.

[0011] The present application also provides a power-adjustable carbon fiber heating element combination, comprising two or more of the above-mentioned power-adjustable carbon fiber heating elements.

[0012] The present application also provides a power adjustment method for a power-adjustable carbon fiber heating element, using the above-mentioned heating element or heating element combination. During adjustment, a notch is formed on the first wire and the second wire for cutting off the first wire and the second wire so that the carbon fiber heating element as a whole is formed by connecting several heating areas in series.

[0013] Beneficial effects of the present invention:

[0014] The carbon fiber heating element of the present invention can be transformed from a non-power-adjustable carbon fiber heating element into a power-adjustable carbon fiber heating element by providing a notch, and an overall heating area can be adjusted to a plurality of small heating areas connected in series. Moreover, the same heating element can be adjusted according to the use requirements to achieve different heating temperatures at different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the carbon fiber heating element of the present invention (excluding the notch);

[0017] Figure 2 The figure is a schematic diagram of the connection between the lead wire and the carbon fiber heating wire in the carbon fiber heating element of the present invention (excluding the notch);

[0018] Figure 3 A schematic diagram of a first connection arrangement of the notch portion in the carbon fiber heating element of the present invention;

[0019] Figure 4 A schematic diagram of a second connection arrangement of the notch portion in the carbon fiber heating element of the present invention;

[0020] Figure 5 A third connection schematic diagram of the notch portion in the carbon fiber heating element of the present invention;

[0021] Figure 6A fourth connection schematic diagram of the notch portion in the carbon fiber heating element of the present invention;

[0022] Figure 7 This is a schematic diagram of the structure of the carbon fiber heating element combination in Example 2 of the present invention. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1

[0025] like Figure 1 As shown, the present invention provides a carbon fiber heating element, which includes a plurality of carbon fiber heating wires 1 uniformly arranged laterally and a first wire 2-1 and a second wire 2-2 longitudinally arranged at both ends of the carbon fiber heating wires 1 and connected to a power source for connecting the plurality of carbon fiber heating wires 1 in parallel.

[0026] When in use, each carbon fiber heating wire 1 between the first wire 2-1 and the second wire 2-2 is connected in parallel between the two wires, and all the carbon fiber heating wires 1 form an integral heating area 10, such as Figure 2 As shown, in the heating area 10, each carbon fiber heating wire 1 is connected in parallel.

[0027] This type of carbon fiber heating element is a relatively conventional type. Since the carbon fiber heating wire 1 is connected in parallel between the first wire 2-1 and the second wire 2-2, the heating element itself cannot achieve power adjustment.

[0028] In order to achieve adjustable power of the carbon fiber heating element, based on the above technical solution, the present application provides a specific implementation scheme, such as Figure 3 As shown, the first wire 2-1 and the second wire 2-2 are formed with a notch portion 3 for cutting the first wire 2-1 and the second wire 2-2 so that the carbon fiber heating element as a whole is formed by a plurality of heating areas 10 connected in series. Figure 3 There are three carbon fiber heating wires 1 in each heating zone 10, the three carbon fiber heating wires 1 are connected in parallel, and all the heating zones 10 are connected in series.

[0029] The provision of the notch 3 realizes the transformation of a carbon fiber heating element with non-adjustable power into a carbon fiber heating element with adjustable power. Figure 3 The heating area 10 of the carbon fiber heating element is composed of Figure 2The overall method is changed into a method of connecting multiple small heating zones 10 in series.

[0030] The notch 3 can be directly Figure 1 The first wire 2-1 and the second wire 2-2 of the carbon fiber heating element are punched to form a notch 3. After the notch 3 is formed, the cut first wire 2-1 and the second wire 2-2 are connected in series with the carbon fiber heating wire 1 as a whole. After punching, insulation treatment can be performed at the notch.

[0031] As a specific embodiment, the plurality of heating areas 10 on the carbon fiber heating element are arranged in a uniform manner or in a non-uniform manner. The carbon fiber heating element arranged in a uniform manner can obtain uniform heating; the non-uniform arrangement can make the carbon fiber heating element form a higher temperature heating condition at any specified position. For example, when the carbon fiber heating element is used as a heated mattress, in order to make the areas corresponding to the legs and feet obtain a high temperature, the notch 3 can be set so that the carbon fiber heating wires 1 in each heating area 10 of the carbon fiber heating element corresponding to the legs and feet are more than other areas.

[0032] As a specific implementation scheme, the number of carbon fiber heating wires 1 between any two adjacent notches 3 on the first conductor 2-1 is greater than or equal to 2; the number of carbon fiber heating wires 1 between any two adjacent notches 3 on the second conductor 2-2 is greater than or equal to 2. The second conductor 2-2 is provided with a notch 3 between the carbon fiber heating wires 1 between any two adjacent notches 3 on the first conductor 2-1. If two or more notches 3 are provided between the carbon fiber heating wires 1 between any two adjacent notches 3 on the first conductor 2-1 in the second conductor 2-2, when forming the heating zone 10 in series, some carbon fiber heating wires 1 will not participate in the heating. This way of providing the notches 3 can obtain a carbon fiber heating element having a heating zone 10 in series.

[0033] Figure 3 A specific heating element with multiple heating zones 10 arranged in a uniform manner is shown. The number of carbon fiber heating wires 1 arranged between any two adjacent notches 3 on the first conductor 2-1 is the same, which is 6. The number of carbon fiber heating wires 1 arranged between any two adjacent notches 3 on the second conductor 2-2 is also the same, which is 6. At the same time, the number of carbon fiber heating wires 1 formed between two adjacent notches 3 on the first conductor 2-1 and the second conductor 2-2 is also the same, which is three respectively. The carbon fiber heating element formed in this way is a heating element composed of a plurality of three parallel carbon fiber heating wires 1 connected in series. That is: Figure 2As shown, the number of carbon fiber heating wires 1 formed between the notches a1 and a2, a2 ​​and a3, a3 and a4, and a4 and a5 on the first conductor 2-1 is 6; the number of carbon fiber heating wires 1 formed between the notches b1 and b2, b2 and b3, b3 and b4, and b4 and b5 on the second conductor 2-2 is 6; at the same time, the number of carbon fiber heating wires 1 between a1 and b1, b1 and a2, a2 ​​and b2, b2 and a3, a3 and b3, b3 and a4, a4 ​​and b4, b4 and a5, and a5 and b5 is 3. Such a heating element as a whole is a uniform heating element in the form of 3+3+3... (i.e., three carbon fiber heating wires are connected in parallel and in series as a whole). In addition to this form, various forms of heating elements with different powers can also be formed. The number of carbon fiber heating wires 1 arranged between any two adjacent notches 3 on the first conductor 2-1 can be 2, 4, 8, 10...; the number of carbon fiber heating wires 1 arranged between any two adjacent notches 3 on the second conductor 2-2 is also 2, 4, 8, 10...; at the same time, the number of carbon fiber heating wires 1 formed between two adjacent notches 3 on the first conductor 2-1 and the second conductor 2-2 is 1, 2, 4, 5..., thus forming a uniform carbon fiber heating element in the form of 1+1+1..., 2+2+2..., 4+4+4..., 5+5+5...

[0034] Figure 4 A heating element in which the heating area 10 is arranged in a non-uniform manner is shown. Specifically, the number of carbon fiber heating wires 1 between any two adjacent notches 3 on the first conductor 2-1 is equal to the number of carbon fiber heating wires 1 between any two adjacent notches 3 on the second conductor 2-2 (both are 6); and the number of carbon fiber heating wires 1 between any notch 3 on the first conductor 2-1 and the two notches 3 on the second conductor 2-2 adjacent thereto is not equal. That is: there are 2 wires between a1 and b1, 4 wires between b1 and a2, 2 wires between a2 and b2, 4 wires between b2 and a3, 2 wires between a3 and b3, 4 wires between b3 and a4, 2 wires between a4 and b4, 4 wires between b4 and a5, and 2 wires between a5 and b5. Thus, a carbon fiber heating element in the form of 2+4+2+4... is formed. The heating element in this way is uneven locally, but relatively uniform overall.

[0035] Figure 5Another heating element in which the heating area 10 is arranged in a non-uniform manner is shown. Specifically, the number of carbon fiber heating wires 1 between any two adjacent notches 3 on the first conductor 2-1 is equal to the number of carbon fiber heating wires 1 between any two adjacent notches 3 on the second conductor 2-2 (both are 6); and the number of carbon fiber heating wires 1 between any notch 3 on the first conductor 2-1 and the two notches 3 on the second conductor 2-2 adjacent thereto is not equal. That is: there is 1 wire between a1 and b1, 5 wires between b1 and a2, 2 wires between a2 and b2, 4 wires between b2 and a3, 3 wires between a3 and b3, 3 wires between b3 and a4, 4 wires between a4 and b4, 2 wires between b4 and a5, and 5 wires between a5 and b5. Thus, a carbon fiber heating element in the form of 1+5+2+4+3+3+4+2+5+… is formed. This type of heating element is not uniform locally, and is not uniform overall.

[0036] In addition to the above-mentioned uneven heating element style, the present application provides another uneven heating element, specifically, Figure 6 As shown, the number of carbon fiber heating wires 1 between any two adjacent notches 3 on the first conductor 2-1 is not equal to the number of carbon fiber heating wires 1 between any two adjacent notches 3 on the second conductor 2-2. Thus, a carbon fiber heating element in the form of 1+1+2+1+1+3+1+4+4+2+5… is formed. This type of heating element is not uniform locally and is not uniform overall.

[0037] The above is only an exemplary display of different types of heating elements. In addition to the displayed types, they can also be adjusted according to actual usage requirements under the concept of the present invention.

[0038] In the present invention, the first conductive wire 2 - 1 and the second conductive wire 2 - 2 may be collectively referred to as conductive wires.

[0039] As a specific implementation, the materials of the first wire 2-1 and the second wire 2-2 can be copper wire strips composed of copper wires. The power source used to power the power-adjustable carbon fiber heating element of the present application is a direct current power source or an alternating current power source.

[0040] As a preferred embodiment, Figure 1As shown, the power adjustable carbon fiber heating element of the present application is prepared by weaving, and in addition to the carbon fiber heating wire 1, the first wire 2-1 and the second wire 2-2, it also includes yarn 4. Specifically, the carbon fiber heating wire 1, the first wire 2-1 and the second wire 2-2 are woven together with the yarn 4. The specific weaving method is as follows: the carbon fiber heating wire 1 is woven in accordance with the horizontal and longitudinal high-strength polyester yarn and several longitudinal wires (tinned copper strands) at a certain distance interval through a weaving process, and then the upper and lower parts of the heating cloth are compounded into a whole (heating element) by cotton or TPU or spraying process after weaving, thereby achieving the advantages of reinforcement, insulation, waterproofing, durability, etc.

[0041] The heating element of the present invention is made by textile technology, and the heating wires are evenly distributed. The metal conductors are made of tinned copper strands with high strength, oxidation resistance, folding resistance and strong conductivity, which can provide electricity for each carbon fiber heating wire. The polyester yarn uses high-strength polyester that is resistant to aging, high temperature and stretching, providing a solid and durable carrier for the entire heating element.

[0042] Specifically, the carbon fiber heating wire of the present invention can adopt Japanese Toho and Toray carbon products or similar products. The carbon fiber manufactured by high-temperature carbonization has high strength, high toughness, high temperature resistance, corrosion resistance, folding resistance, electrical and thermal conductivity, high thermal conversion rate, and energy saving. It is more particularly pointed out that when the carbon fiber filaments are powered on and heated, they can release 2-18μm far infrared rays. According to relevant data, 8-14μm far infrared rays are very helpful to human health.

[0043] Example 2

[0044] Based on the power-adjustable carbon fiber heating element in Example 1, the present application also provides a power-adjustable carbon fiber heating element combination, wherein a heating element combination includes two or more power-adjustable carbon fiber heating elements, for example, based on Figure 3 Power adjustable carbon fiber heating element, such as Figure 7 As shown, the present application provides a heating element combination including two power-adjustable carbon fiber heating elements. The two heating elements can be combined together by weaving or by other methods (such as by bonding).

[0045] The power-adjustable carbon fiber heating element and the heating element combination of the present invention can be used in household electric heating mattresses, sauna rooms, local physiotherapy pads, car seats, seat cushions and other heating fields.

[0046] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the scope of protection of the present invention.

Claims

1. A power adjustable carbon fiber heating element, comprising a plurality of carbon fiber heating wires (1) uniformly arranged transversely and a first wire (2-1) and a second wire (2-2) longitudinally arranged at both ends of the carbon fiber heating wires (1) for connecting the plurality of carbon fiber heating wires (1) in parallel; characterized in that: The first conductive wire (2-1) and the second conductive wire (2-2) are provided with a notch portion (3) for cutting the first conductive wire (2-1) and the second conductive wire (2-2) so that the carbon fiber heating element as a whole is formed with a plurality of heating zones (10) connected in series.

2. The power adjustable carbon fiber heating element according to claim 1, characterized in that: The plurality of heating areas (10) on the carbon fiber heating element are arranged in a uniform manner or in a non-uniform manner.

3. The power adjustable carbon fiber heating element according to claim 2, characterized in that: The number of carbon fiber heating wires (1) between any two adjacent notch portions (3) on the first conductive wire (2-1) is greater than or equal to 2; and the number of carbon fiber heating wires (1) between any two adjacent notch portions (3) on the second conductive wire (2-2) is greater than or equal to 2.

4. The power adjustable carbon fiber heating element according to claim 3, characterized in that: The second conductive wire (2-2) is provided with a notch portion (3) between the carbon fiber heating wires (1) between any two adjacent notch portions (3) on the first conductive wire (2-1).

5. The power adjustable carbon fiber heating element according to claim 4, characterized in that: The number of carbon fiber heating wires (1) between any two adjacent notches (3) on the first wire (2-1) is equal to the number of carbon fiber heating wires (1) between any two adjacent notches (3) on the second wire (2-2).

6. The power adjustable carbon fiber heating element according to claim 5, characterized in that: The number of carbon fiber heating wires (1) between any one notch portion (3) on the first conductive wire (2-1) and two notches (3) on the adjacent second conductive wire (2-2) is equal.

7. The power adjustable carbon fiber heating element according to claim 5, characterized in that: The number of carbon fiber heating wires (1) between any one notch portion (3) on the first conductive wire (2-1) and two notches (3) on the adjacent second conductive wire (2-2) is not equal.

8. The power adjustable carbon fiber heating element according to claim 4, characterized in that: The number of carbon fiber heating wires (1) between any two adjacent notches (3) on the first wire (2-1) is not equal to the number of carbon fiber heating wires (1) between any two adjacent notches (3) on the second wire (2-2).

9. A power adjustable carbon fiber heating element combination, characterized in that: The invention comprises two or more power-adjustable carbon fiber heating elements as described in any one of claims 1 to 8.

10. A power adjustment method for a power-adjustable carbon fiber heating element, characterized in that: When using the heating element described in any one of claims 1 to 8 or the heating element combination described in claim 9, during adjustment, a notch portion (3) is formed on the first wire (2-1) and the second wire (2-2) for cutting the first wire (2-1) and the second wire (2-2) so that the carbon fiber heating element as a whole is formed with a plurality of heating areas (10) connected in series.

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