Multi-power-supply-node multi-heating-body continuous extension linear heating cable

Abstract

The utility model relates to a multi-power-supply-node multi-heating-body continuous extension linear heating cable, which comprises an anode power supply insulated wire, a cathode power supply insulated wire, a linear heating material body and a heating cable insulated heat-resistant sheath, the linear heating material body is provided with N wiring nodes including two ends of the linear heating material body and internal positions of the two ends of the linear heating material body, and the positive electrode power supply insulation wire inner core is electrically connected with the first wiring node, the third wiring node,..., the (N-1) th wiring node on the linear heating material body. The inner core of the cathode power supply insulated wire is electrically connected with the second wiring node, the fourth wiring node,..., and the Nth wiring node on the linear heating material body respectively; through the scheme, the disposable length of the linear heating material body is extended, the problem of excessive joints of the heating material body is solved, and a plurality of inconveniences caused by repeated joints are directly solved. The operation steps are simplified, the use cost is reduced, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to a heater, in particular to a continuously extended linear heating cable with multiple power supply nodes and multiple heating elements. Background Art

[0002] In the prior art, the heating element of the linear heating belt, such as the carbon fiber heating wire, exists as a heating element unit according to a certain length. Both ends of each heating element unit are connected with unit electric wires, so that each heating element unit can be used independently. When several heating elements are required to work at the same time, and multiple heating elements are used continuously and uninterruptedly, when each heating element unit is connected to the unit electric wire, multiple groups of unit electric wire connection joints will appear. Each joint is wrapped with insulating tape or heat shrink tubing and exposed outside the two ends of the heating unit body. As the number of joints increases, the workload is quite huge. A huge number of unit electric wire joints are handled at the work site, and the quality of the unit electric wire joints is difficult to guarantee.

[0003] And because the unit electrical conductors are separated from the heating element units, a large number of unit electrical conductors are hung outside the work site, which poses a safety hazard. At the construction application site, the unit electrical conductors and power supply positions need to be specially arranged to have a fixed line direction. The heating element units and power supply are completed by on-site construction electricians and power supply control electricians respectively, which causes many inconveniences in extending the heating work of multiple heating elements separately. Utility Model Content

[0004] In view of this, the main purpose of the utility model is to provide a multi-power node multi-heating element continuous extension linear heating cable. Through this technical solution, the disposable length of the linear heating material body is extended, the problem of too many joints of the heating material body is solved, and after connecting the power supply once, several inconveniences caused by multiple joints are directly solved. The operation steps are simplified, the use cost is reduced, and the work efficiency is greatly improved.

[0005] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is implemented as follows: a multi-power node multi-heating element continuously extended linear heating cable, including a positive power insulated wire and a negative power insulated wire, the front ends of the positive power insulated wire and the negative power insulated wire are connected with wiring terminals, and also include a linear heating material body and an insulating heat-resistant sheath of the heating cable, the linear heating material body, the positive power insulated wire and the negative power insulated wire are respectively covered together in the insulating heat-resistant sheath of the heating cable to form a heating cable, and the linear heating material body is provided with N wiring nodes including the two ends of the linear heating material body and the internal positions of the two ends of the linear heating material body, the inner core of the positive power insulated wire is respectively electrically connected to the first wiring node, the third wiring node, ... the N-1th wiring node on the linear heating material body, and the inner core of the negative power insulated wire is respectively electrically connected to the second wiring node, the fourth wiring node, ... the Nth wiring node on the linear heating material body.

[0006] As a further technical solution, the heating cable can be a linear heating material body, and the distance between two connection nodes gradually decreases from front to back.

[0007] As a further technical solution, the positive power supply insulated wire and the negative power supply insulated wire are arranged on both sides of the heating cable, and the linear heating material body is arranged between the positive power supply insulated wire and the negative power supply insulated wire. The positive power supply insulated wire, the linear heating material body and the negative power supply insulated wire form a row of flat heating cables.

[0008] As a further technical solution, the positive power supply insulated wire and the negative power supply insulated wire are arranged side by side at the bottom of the heating cable, and the linear heating material body is arranged in the middle above the positive power supply insulated wire and the negative power supply insulated wire. The positive power supply insulated wire, the linear heating material body and the negative power supply insulated wire form a "T" shape to form a circular heating cable.

[0009] The beneficial effects of adopting the above technical solution are: a multi-power node multi-heating element continuously extended linear heating cable, through this technical solution, extends the disposable length of the linear heating material body, solves the problem of too many joints of the heating material body, and directly solves the inconvenience caused by multiple joints after connecting the power supply once. The operation steps are simplified, the use cost is reduced, and the work efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the longitudinal sectional structure of the utility model.

[0011] Figure 2 It is a schematic diagram of the cross-sectional structure of the flat heating cable of the present invention.

[0012] Figure 3It is a schematic diagram of the cross-sectional structure of the circular heating cable of the present utility model.

[0013] In the figure, 1 is the positive power supply insulated wire, 2 is the negative power supply insulated wire, 3 is the terminal, 4 is the linear heating material body, 5 is the insulating heat-resistant sheath of the heating cable, 6 is the first wiring node, 7 is the second wiring node, 8 is the third wiring node, 9 is the fourth wiring node, 10 is the N-1th wiring node, and 11 is the Nth wiring node. DETAILED DESCRIPTION

[0014] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0015] like Figure 1-Figure 3 As shown, the utility model involves a multi-power node multi-heating element continuously extended linear heating cable, including a positive power insulated wire 1 and a negative power insulated wire 2, the front ends of the positive power insulated wire 1 and the negative power insulated wire 2 are connected with a wiring terminal 3, and also include a linear heating material body 4 and a heating cable insulating heat-resistant sheath 5, the linear heating material body 4, the positive power insulated wire 1 and the negative power insulated wire 2 are respectively covered together in the heating cable insulating heat-resistant sheath 5 to form a heating cable, and the linear heating material body 4 is provided with N wiring nodes including the two ends of the linear heating material body 4 and the internal positions of the two ends of the linear heating material body 4, the inner core of the positive power insulated wire 1 is respectively electrically connected to the first wiring node 6, the third wiring node 8, ... the N-1th wiring node 10 on the linear heating material body 4, and the inner core of the negative power insulated wire 2 is respectively electrically connected to the second wiring node 7, the fourth wiring node 9, ... the Nth wiring node 11 on the linear heating material body 4.

[0016] As a further embodiment, the distance between two connection nodes of the linear heating material body 4 of the heating cable gradually decreases from front to back.

[0017] As a further embodiment, the positive power supply insulated wire 1 and the negative power supply insulated wire 2 are arranged on both sides of the heating cable, and the linear heating material body 4 is arranged between the positive power supply insulated wire 1 and the negative power supply insulated wire 2. The positive power supply insulated wire 1, the linear heating material body 4 and the negative power supply insulated wire 2 form a row of flat heating cables.

[0018] As a further embodiment, the positive power insulated wire 1 and the negative power insulated wire 2 are arranged side by side at the bottom of the heating cable, and the linear heating material body 4 is arranged in the middle above the positive power insulated wire 1 and the negative power insulated wire 2. The positive power insulated wire 1, the linear heating material body 4 and the negative power insulated wire 2 form a "T" shape to form a circular heating cable.

[0019] In the technical solution of the utility model, the wiring terminals 3 are respectively arranged on the front ends of the positive power supply insulated wire 1 and the negative power supply insulated wire 2, and the two wiring terminals 3 are respectively connected to the positive and negative poles of the power supply. Since the positive power supply insulated wire 1 and the negative power supply insulated wire 2 both have a certain resistance, the entire heating cable is a parallel circuit with the same current. In order to cope with the gradually decreasing voltage, the distance between the two wiring nodes on the linear heating material body 4 is gradually reduced to achieve basically the same heating temperature of the linear heating material body 4 between the two wiring nodes.

[0020] In the technical solution of the utility model, the heating temperature can be determined according to the requirement of the use temperature by adjusting the distance between the two wiring nodes. The distance between the two wiring nodes gradually decreases from large to small from front to back to achieve the temperature balance of the entire heating cable. At the same time, the temperature of different parts can be controlled by adjusting the distance between the two wiring nodes, that is, different temperatures required by different parts can be achieved in different parts.

[0021] In the technical solution of the utility model, the connection nodes between the positive power supply insulated wire 1 and the negative power supply insulated wire 2 and the linear heating material body 4 do not need to be insulated separately. The insulation problem of the entire cable can be solved by the insulating heat-resistant sheath 5 of the heating cable, thereby greatly reducing the workload of use.

[0022] The utility model product is mainly used in the field of engineering heating. The heating cable can be wound around pipes or equipment that need to be heated or require a constant temperature to provide a heat source. In construction, the heating cable is wound around the building formwork to heat the building formwork, especially the building formwork after pouring concrete in winter construction. This can effectively improve the solidification quality of concrete and the demoulding effect. The number of nodes that need to be wired on site is reduced by several times, thereby greatly reducing the workload, improving work efficiency, greatly improving construction quality, and ensuring the safety of construction electricity.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims

1. A multi-power node multi-heating element continuously extended linear heating cable, comprising a positive power insulated wire and a negative power insulated wire, wherein the front ends of the positive power insulated wire and the negative power insulated wire are connected to wiring terminals, characterized in that: It also includes a linear heating material body and an insulating and heat-resistant sheath of a heating cable. The linear heating material body, the positive power supply insulated wire and the negative power supply insulated wire are respectively covered together in the insulating and heat-resistant sheath of the heating cable to form a heating cable. The linear heating material body is provided with N wiring connection points including the two ends of the linear heating material body and the internal positions of the two ends of the linear heating material body. The inner core of the positive power supply insulated wire is respectively electrically connected to the first wiring node, the third wiring node, ... the N-1th wiring node on the linear heating material body, and the inner core of the negative power supply insulated wire is respectively electrically connected to the second wiring node, the fourth wiring node, ... the Nth wiring node on the linear heating material body.

2. The multi-power node multi-heating element continuously extended linear heating cable according to claim 1 is characterized in that: The heating cable can be a linear heating material body, and the distance between two connection nodes gradually decreases from front to back.

3. The multi-power node multi-heating element continuously extended linear heating cable according to claim 1, characterized in that: The positive power insulated wire and the negative power insulated wire are arranged on both sides of the heating cable, and the linear heating material body is arranged between the positive power insulated wire and the negative power insulated wire. The positive power insulated wire, the linear heating material body and the negative power insulated wire form a row of flat heating cables.

4. The multi-power node multi-heating element continuously extended linear heating cable according to claim 1, characterized in that: The positive power insulated wire and the negative power insulated wire are arranged side by side at the bottom of the heating cable, and the linear heating material body is arranged in the middle above the positive power insulated wire and the negative power insulated wire. The positive power insulated wire, the linear heating material body and the negative power insulated wire form a "T" shape to form a circular heating cable.

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