Power-adjustable carbon fiber heating element and power-adjustable carbon fiber heating element combination

Abstract

The utility model relates to a power-adjustable carbon fiber heating element and a power-adjustable carbon fiber heating element combination. The power-adjustable carbon fiber heating body comprises a plurality of carbon fiber heating wires, a first lead and a second lead, wherein the carbon fiber heating wires are transversely and uniformly arranged; the first lead and the second lead 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 provided by the utility model, the carbon fiber heating body with non-adjustable power can be changed into the carbon fiber heating body with adjustable power through the arrangement of the notch part, and an integral heating area is adjusted into a mode that a plurality of small heating areas are connected 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 utility model relates to the technical field of electric heating, in particular to a power-adjustable carbon fiber heating element and a power-adjustable carbon fiber heating element combination. 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. Utility Model Content

[0003] In order to solve the above problems, the utility model 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 the first conductor and the second conductor so that the carbon fiber heating element as a whole is formed with a plurality of heating areas 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.

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

[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 conductor is not equal to the number of carbon fiber heating wires between any two adjacent notches on the second conductor.

[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 the first wire and the second wire so that the carbon fiber heating element as a whole is formed into a plurality of heating zones connected in series.

[0013] Beneficial effects of the utility model:

[0014] The carbon fiber heating element of the utility model can be transformed from a non-adjustable power carbon fiber heating element into an adjustable power carbon fiber heating element by providing a notch, thereby adjusting an overall heating area to multiple small heating areas in series. Moreover, the same heating element can be adjusted according to usage requirements to achieve different heating temperatures at different locations. 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 following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

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

[0017] Figure 2 This 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 This is a schematic diagram of the first connection arrangement of the notch portion in the carbon fiber heating element of the present invention;

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

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

[0022] Figure 7 This is a structural schematic diagram of the carbon fiber heating element combination in Example 2 of the present utility model. 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0024] Example 1

[0025] like Figure 1 As shown, the utility model provides a carbon fiber heating element, which includes a plurality of carbon fiber heating wires 1 arranged uniformly in a transverse direction 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 and connected to a power supply.

[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 overall 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 common type. Since the carbon fiber heating wires 1 are connected in parallel between the first conductor 2-1 and the second conductor 2-2, the heating element itself cannot achieve power adjustment.

[0028] In order to achieve the power adjustment of the carbon fiber heating element, based on the above technical solution, this 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 into 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 3The heating area 10 of the carbon fiber heating element is composed of Figure 2 The overall method is changed to a method of connecting multiple small heating zones 10 in series.

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

[0031] As a specific embodiment, the plurality of heating zones 10 on the carbon fiber heating element are arranged in a uniform or non-uniform manner. A uniformly arranged carbon fiber heating element can achieve uniform heating; a non-uniform arrangement can enable the carbon fiber heating element to achieve a higher temperature heating condition at any designated location. For example, when the carbon fiber heating element is used as a heated mattress, in order to achieve a higher temperature in the areas corresponding to the legs and feet, the notch 3 can be provided so that each heating zone 10 of the carbon fiber heating element corresponding to the legs and feet has more carbon fiber heating lines 1 than other areas.

[0032] As a specific embodiment, 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 series heating zone 10, some carbon fiber heating wires 1 will not participate in the heating. This method of providing the notches 3 can obtain a carbon fiber heating element having a series heating zone 10.

[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. 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, between a2 and a3, between a3 and a4, and between a4 and a5 on the first conductor 2-1 is six; the number of carbon fiber heating wires 1 formed between the notches b1 and b2, between b2 and b3, between b3 and b4, and between b4 and b5 on the second conductor 2-2 is six; at the same time, the number of carbon fiber heating wires 1 between a1 and b1, between b1 and a2, between a2 and b2, between b2 and a3, between a3 and b3, between b3 and a4, between a4 and b4, between b4 and a5, and between a5 and b5 is three. 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 the whole is connected in series). 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 wire 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 wire 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 wire 2-1 and the second wire 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 with a non-uniform arrangement of heating zones 10 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). Furthermore, the number of carbon fiber heating wires 1 between any one notch 3 on the first conductor 2-1 and the two adjacent notches 3 on the second conductor 2-2 is unequal. Specifically, there are 2 carbon fiber heating wires 1 between a1 and b1, 4 between b1 and a2, 2 between a2 and b2, 4 between b2 and a3, 2 between a3 and b3, 4 between b3 and a4, 2 between a4 and b4, 4 between b4 and a5, and 2 between a5 and b5. This creates a carbon fiber heating element in the form of 2+4+2+4…. This type of heating element is locally non-uniform but relatively uniform overall.

[0035] Figure 5Another heating element is shown in which the heating zones 10 are arranged in a non-uniform manner. 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). Furthermore, the number of carbon fiber heating wires 1 between any one notch 3 on the first conductor 2-1 and the two adjacent notches 3 on the second conductor 2-2 is not equal. That is, there is 1 carbon fiber heating wire 1 between a1 and b1, 5 between b1 and a2, 2 between a2 and b2, 4 between b2 and a3, 3 between a3 and b3, 3 between b3 and a4, 4 between a4 and b4, 2 between b4 and a5, and 5 between a5 and b5. This forms a carbon fiber heating element in the form of 1+5+2+4+3+3+4+2+5+…. This type of heating element is not uniform locally, but also uneven 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. This creates a carbon fiber heating element in the form of 1+1+2+1+1+3+1+4+4+2+5…. This heating element is not uniform locally, but also overall.

[0037] The above examples are just illustrative of different types of heating elements. In addition to the types shown, 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 embodiment, the material of the first wire 2-1 and the second wire 2-2 can be a copper wire strip composed of copper wires. The power supply for the power-adjustable carbon fiber heating element of the present application is a DC power supply or an AC power supply.

[0040] As a preferred embodiment, Figure 1As shown, the power-adjustable carbon fiber heating element of the present application is prepared by weaving. 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 the horizontal direction and at a certain distance, and the vertical direction is high-strength polyester yarn and several longitudinal wires (tinned copper strands) are woven through a weaving process. After weaving, the upper and lower parts of the heating cloth are compounded into a whole (heating element) using cotton or TPU or a spraying process, thereby achieving the advantages of reinforcement, insulation, waterproofing, and durability.

[0041] Because this heating element is made using a textile process, the heating wires are evenly distributed. The metal conductors are made of tinned copper strands that are strong, oxidation-resistant, fold-resistant, and highly conductive, providing power to each carbon fiber heating wire. The polyester yarn is made of high-strength polyester that is resistant to aging, high temperatures, and stretching, providing a solid and durable support 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. This kind of carbon fiber manufactured by high-temperature carbonization has high strength, high toughness, high temperature resistance, corrosion resistance, folding resistance, electrical and thermal conductivity, high heat conversion rate, and energy saving. It is more particularly pointed out that when the carbon fiber is powered on and heated, it 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 further provides a power-adjustable carbon fiber heating element combination, wherein a heating element combination includes two or more power-adjustable carbon fiber heating elements.

[0045] 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 means (such as bonding).

[0046] The power-adjustable carbon fiber heating element and the heating element combination of the utility model can be used in household electric heating mattresses, sauna rooms, local physiotherapy pads, car seats, seat cushions and other heating fields.

[0047] Each embodiment in this specification is described in a related manner. Similar parts between the embodiments can be referred to in conjunction with each other. 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 conductor (2-1) and a second conductor (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 into a plurality of heating zones (10) connected in series, and also includes a yarn (4) woven together with the carbon fiber heating wire (1) and the conductive wire.

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 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 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 any two adjacent notch portions (3) on the first conductive wire (2-1) and the carbon fiber heating wire (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 the 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 assembly, characterized in that: The invention comprises two or more power-adjustable carbon fiber heating elements according to any one of claims 1 to 8.

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