Nickel-chromium electrothermal alloy wire

Abstract

The utility model discloses a nickel-chromium electrothermal alloy wire, which belongs to the technical field of electrothermal alloy wires and comprises an alloy wire main body, a heat conduction layer is fixedly mounted on the surface of the alloy wire main body, six groups of fixing grooves are arranged in the surface of the heat conduction layer at equal angles, and a protective sleeve is arranged on the surface of the heat conduction layer. And six groups of hand tearing grooves are formed in the outer surface of the protective sleeve at equal angles. According to the nickel-chromium electrothermal alloy wire, the heat conduction layer, the fixing clamping grooves, the protection sleeve, the fixing clamping strips and the reinforcing strips are arranged, the surface of the heat conduction layer is sleeved with the protection sleeve, the fixing clamping strips on the inner wall of the protection sleeve are clamped into the corresponding fixing clamping grooves, and it is ensured that when the protection sleeve is clamped and sleeved on the surface of the heat conduction layer, the protection sleeve cannot freely slide and disengage from the surface of the heat conduction layer; when the alloy wire main bodies are wound and collected, the alloy wire main bodies cannot be damaged due to mutual friction, and meanwhile, the reinforcing strips on the inner wall of the protective sleeve can improve the compression resistance of the protective sleeve, so that the protective capability of the protective sleeve on the heat conduction layer and the alloy wire main bodies is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrothermal alloy wires, and particularly relates to a nickel-chromium electrothermal alloy wire. Background Art

[0002] As an alloy material with high high-temperature strength and strong plasticity, nickel-chromium electrothermal alloy wires are widely used in industrial electric furnaces, household appliances and far-infrared devices. This kind of alloy wire is made of nickel, chromium and other elements (such as iron, aluminum, silicon, carbon, sulfur, etc.), and has a relatively high resistivity and good heat resistance.

[0003] When the existing nickel-chromium electrothermal alloy wires are stored, the nickel-chromium electrothermal alloy wires are directly wound into coils for storage. The nickel-chromium electrothermal alloy wires wound together are prone to scratches due to mutual friction, which affects the resistivity and heat resistance of the nickel-chromium electrothermal alloy wires. Therefore, improvement is needed. Content of the Utility Model

[0004] In order to overcome the above defects, the utility model provides a nickel-chromium electrothermal alloy wire, which solves the problem that when the existing nickel-chromium electrothermal alloy wires are directly wound into coils for storage, the nickel-chromium electrothermal alloy wires wound together are prone to leave scratches on the surface of the nickel-chromium electrothermal alloy wires, affecting the resistivity and heat resistance of the nickel-chromium electrothermal alloy wires.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a nickel-chromium electrothermal alloy wire, including an alloy wire main body, a heat conduction layer is fixedly installed on the surface of the alloy wire main body, six groups of fixing grooves are equiangularly arranged inside the surface of the heat conduction layer, a protective sleeve is arranged on the surface of the heat conduction layer, six groups of tearing grooves are equiangularly arranged on the outer surface of the protective sleeve, two groups of installation holes are respectively arranged inside the surface of the protective sleeve between adjacent two groups of tearing grooves, and a reinforcing strip is arranged inside the installation hole.

[0006] As a further scheme of the utility model: the fixing grooves are arranged in a spiral shape inside the surface of the heat conduction layer, a support heat conduction strip is arranged inside the fixing grooves, and the support heat conduction strip is spirally attached to the inside of the fixing grooves.

[0007] As a further scheme of the utility model: six groups of fixing card slots are equiangularly arranged on the outer surface of the heat conduction layer, and the six groups of fixing card slots are spirally coiled on the surface of the heat conduction layer at equal angles, and the pitch between the six groups of fixing card slots is the same.

[0008] As a further scheme of the utility model: six groups of fixing card strips are equiangularly and fixedly installed on the inner wall of the protective sleeve, and the fixing card strips correspond to the fixing card slots in position and have the same shape.

[0009] As a further solution of the present utility model: The protective sleeve is made of insulating rubber material, and the reinforcing strip is a flexible metal strip.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] For this nickel-chromium electrothermal alloy wire, by providing a heat-conducting layer, a fixed card slot, a protective sleeve, a fixed card strip and a reinforcing strip, the protective sleeve is sleeved on the surface of the heat-conducting layer, and the fixed card strip on the inner wall of the protective sleeve is snapped into the corresponding fixed card slot, ensuring that when the protective sleeve is tightly sleeved on the surface of the heat-conducting layer, it will not slide off the surface of the heat-conducting layer randomly. When the alloy wire body is wound and collected, the alloy wire bodies will not rub against each other and be damaged. At the same time, the reinforcing strip on the inner wall of the protective sleeve can improve the compressive performance of the protective sleeve, thereby improving the protective ability of the protective sleeve for the heat-conducting layer and the alloy wire body. Description of the Drawings

[0012] Figure 1 is a cross-sectional structural schematic diagram of the present utility model;

[0013] Figure 2 is a cross-sectional structural schematic diagram of the heat-conducting layer, the supporting heat-conducting strip and the fixed card slot of the present utility model;

[0014] Figure 3 is a cross-sectional structural schematic diagram of the protective sleeve, the fixed card strip and the reinforcing strip of the present utility model;

[0015] In the figure: 1, alloy wire body; 2, heat-conducting layer; 3, fixed groove; 4, supporting heat-conducting strip; 5, fixed card slot; 6, protective sleeve; 7, fixed card strip; 8, mounting hole; 9, reinforcing strip; 10, tear slot. Detailed Embodiment

[0016] The technical solutions of this patent will be further described in detail below in conjunction with the specific embodiments.

[0017] Such as Figures 1-3As shown in the figure, the present utility model provides a technical solution: a nickel-chromium electrothermal alloy wire, including an alloy wire main body 1, a heat conduction layer 2 is fixedly installed on the surface of the alloy wire main body 1. Six groups of fixed card slots 5 are equiangularly arranged on the outer surface of the heat conduction layer 2, and the six groups of fixed card slots 5 are spirally coiled on the surface of the heat conduction layer 2 at equal angles, and the pitch between the six groups of fixed card slots 5 is the same. A protective sleeve 6 is arranged on the surface of the heat conduction layer 2. Six groups of fixed card strips 7 are fixedly installed on the inner wall of the protective sleeve 6 at equal angles. The fixed card strips 7 correspond to the fixed card slots 5 in position and have the same shape. By providing the fixed card slots 5 and the fixed card strips 7, when the protective sleeve 6 is correspondingly sleeved on the surface of the heat conduction layer 2, the spiral fixed card strips 7 on the inner wall of the protective sleeve 6 are correspondingly clamped into the spiral fixed card slots 5 on the surface of the heat conduction layer 2, thereby increasing the contact area between the protective sleeve 6 and the heat conduction layer 2 and improving the friction between the protective sleeve 6 and the heat conduction layer 2, preventing the protective sleeve 6 from sliding randomly on the surface of the heat conduction layer 2.

[0018] Six groups of fixed slots 3 are equiangularly arranged inside the surface of the heat conduction layer 2. The fixed slots 3 are spirally arranged inside the surface of the heat conduction layer 2. A support heat conduction strip 4 is arranged inside the fixed slots 3, and the support heat conduction strip 4 is spirally attached to the inside of the fixed slots 3. Due to the provision of the heat conduction layer 2 and the support heat conduction strip 4, when the alloy wire main body 1 is energized for operation, the heat accumulated on the surface of the alloy wire main body 1 can be quickly transferred through the heat conduction layer 2 and the support heat conduction strip 4. At the same time, when the heat conduction layer 2 expands due to heat, the support heat conduction strip 4 on the surface of the heat conduction layer 2 can support the heat conduction layer 2 to prevent the heat conduction layer 2 from expanding due to heat and detaching from the surface of the alloy wire main body 1.

[0019] Six groups of tearing slots 10 are equiangularly arranged on the outer surface of the protective sleeve 6. By providing the tearing slots 10, tearing the protective sleeve 6 enables the surface of the protective sleeve 6 to start cracking from the relatively weak tearing slots 10, thus facilitating the separation of the protective sleeve 6 from the surface of the heat conduction layer 2;

[0020] Two installation holes 8 are respectively arranged on the inner part of the surface of the protective sleeve 6 between two adjacent tearing slots 10. A reinforcing strip 9 is arranged inside the installation holes 8. Due to the provision of the reinforcing strip 9, multiple groups of reinforcing strips 9 are inlaid and installed on the surface of the protective sleeve 6, thereby improving the compressive performance of the protective sleeve 6 and ensuring that the protective sleeve 6 will not easily break when a shearing pressure is applied to the protective sleeve 6.

[0021] The protective sleeve 6 is made of insulating rubber material, and the reinforcing strip 9 is a flexible metal strip. Since the protective sleeve 6 and the reinforcing strip 9 have a certain flexibility and can be bent, it is convenient to wind and collect the alloy wire main body 1 and the protective sleeve 6.

[0022] The working principle of the present utility model is:

[0023] A protective sleeve 6 is sleeved on the heat-conducting layer 2 on the surface of the alloy wire body 1, so that the fixing strips 7 on the inner wall of the protective sleeve 6 can be correspondingly clamped into the fixing grooves 5 on the surface of the heat-conducting layer 2, and the protective sleeve 6 is tightly clamped and fixed on the surface of the heat-conducting layer 2. When the alloy wire body 1 needs to be used, an appropriate length of the alloy wire body 1 is extracted, and the alloy wire body 1 and the protective sleeve 6 are cut with scissors. The protective sleeve 6 on the surface of the alloy wire body 1 after cutting is torn, so that the protective sleeve 6 breaks from the hand-ripping groove 10, thereby removing the protective sleeve 6 from the surface of the heat-conducting layer 2. The alloy wire body 1 is energized to start heating, and the heat accumulated on the surface of the alloy wire body 1 gradually dissipates from the heat-conducting layer 2 and the supporting heat-conducting strips 4. At the same time, the heat-conducting layer 2 is gradually expanded by heat, and under the pressing and supporting action of the supporting heat-conducting strips 4, the heat-conducting layer 2 is tightly attached to the surface of the alloy wire body 1.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0025] The above has described in detail the preferred embodiments of this patent, but this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can also be made without departing from the purpose of this patent.

Claims

1. A nickel-chromium electrothermal alloy wire, comprising an alloy wire body (1), characterized in that: A heat-conducting layer (2) is fixedly installed on the surface of the alloy wire body (1). Six groups of fixing grooves (3) are equiangularly arranged inside the surface of the heat-conducting layer (2). A protective sleeve (6) is arranged on the surface of the heat-conducting layer (2). Six groups of tearing grooves (10) are equiangularly arranged on the outer surface of the protective sleeve (6). Two groups of mounting holes (8) are respectively arranged inside the surface of the protective sleeve (6) between two adjacent tearing grooves (10). A reinforcing strip (9) is arranged inside the mounting hole (8).

2. A nickel-chromium electrothermal alloy wire according to claim 1, characterized in that: The fixing groove (3) is spirally arranged inside the surface of the heat-conducting layer (2). A supporting heat-conducting strip (4) is arranged inside the fixing groove (3), and the supporting heat-conducting strip (4) is spirally attached to the inside of the fixing groove (3).

3. A nickel-chromium electrothermal alloy wire according to claim 1, characterized in that: Six groups of fixing clamping grooves (5) are equiangularly arranged on the outer surface of the heat-conducting layer (2). The six groups of fixing clamping grooves (5) are spirally coiled on the surface of the heat-conducting layer (2) at equal angles, and the pitch between the six groups of fixing clamping grooves (5) is the same.

4. A nickel-chromium electrothermal alloy wire according to claim 3, characterized in that: Six groups of fixing clamping strips (7) are fixedly installed on the inner wall of the protective sleeve (6) at equal angles. The fixing clamping strips (7) correspond to the fixing clamping grooves (5) in position and have the same shape.

5. A nickel-chromium electrothermal alloy wire according to claim 1, characterized in that: The protective sleeve (6) is made of insulating rubber material, and the reinforcing strip (9) is a flexible metal strip.

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