Electric tracing band capable of centralized heat dissipation

Abstract

The utility model relates to the technical field of electric tracing bands, in particular to an electric tracing band capable of centralized heat dissipation, which comprises two copper core leads distributed in parallel, a flat conductive plastic layer is wrapped outside the two copper core leads together, an inner sheath layer, a shielding layer and a reinforcing layer are sequentially wrapped outside the conductive plastic layer, and the inner sheath layer, the shielding layer and the reinforcing layer are wrapped outside the inner sheath layer. The reinforcing layer is covered with a heat insulation layer, the heat insulation layer is of a three-section structure, the left section and the right section of the heat insulation layer are both arc-shaped and respectively cover the two sides of the outer portion of the reinforcing layer, and the middle section of the heat insulation layer covers the outer portion of one face of the reinforcing layer. According to the utility model, the heat insulation layer covers the outside of the reinforcing layer, and the exposed surface of the reinforcing layer is directly attached to the pipeline, so that the heat of the electric tracing band can be concentrated to act on a heated object, and the utilization rate of the heat can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heating belts, in particular to an electric heating belt capable of concentrated heat dissipation. Background Art

[0002] The electric heating cable is composed of a conductive polymer, two parallel metal wires and an insulating sheath. Its characteristics are that the conductive polymer has a very high positive temperature coefficient characteristic, and is connected in parallel with each other, and can automatically adjust the output power and automatically limit the heating temperature as the temperature of the heated system changes.

[0003] Nowadays, electric heating cables are widely used in many fields. Their main function is to attach to the outside of the pipe to achieve heating and antifreeze effects. The existing electric heating cables have a relatively simple structure, such as Figure 1 As shown, an existing electric heating cable comprises two copper core conductors 100 parallel to each other, the two copper core conductors 100 are wrapped with a conductive plastic layer 200, and the conductive plastic layer 200 is sequentially covered with an inner sheath layer 300, a shielding layer 400 and a reinforcement layer 500. When one end of the two copper core conductors 100 is connected to a power source, the conductive plastic layer 200 is equivalent to a resistor connected in parallel to two circuits, which has the function of generating heat when powered on, thereby being able to heat the corresponding object.

[0004] At present, when the electric heating tape is actually used, it is usually wrapped around the outside of the pipe to heat the pipe; at this time, one side of the electric heating tape is in contact with the pipe, and the other side is exposed, which causes the heat of the electric heating tape to dissipate quickly. Based on this, in order to improve the energy utilization rate of the electric heating tape, we proposed an electric heating tape that can dissipate heat in a centralized manner to effectively solve the above disadvantages. Utility Model Content

[0005] The purpose of the utility model is to provide an electric heating belt capable of concentrated heat dissipation, so as to solve the problems raised in the above-mentioned background technology.

[0006] The utility model is realized by the following technical solutions:

[0007] An electric heating tape capable of concentrated heat dissipation comprises two parallel copper core conductors, the outside of the two copper core conductors are wrapped together with a flat conductive plastic layer, the outside of the conductive plastic layer is also wrapped in sequence with an inner sheath layer, a shielding layer and a reinforcement layer, the outside of the reinforcement layer is covered with a heat insulation layer, the heat insulation layer is a three-section structure, the left and right sections of the heat insulation layer are both arc-shaped, and the left and right sections of the heat insulation layer respectively cover the two sides of the outside of the reinforcement layer, and the middle section of the heat insulation layer covers the outside of one side of the reinforcement layer.

[0008] Optionally, positioning bulges are protrudingly formed on both sides of the outer surface of the reinforcement layer, and positioning grooves matching the bulges are opened on both sides of the inner surface of the thermal insulation layer, and the positioning bulges are embedded in the positioning grooves.

[0009] Optionally, the positioning bulges are distributed along the length direction of the reinforcement layer, and the cross-section of the positioning bulges is circular.

[0010] Optionally, the interior of the heat insulation layer is further provided with heat insulation cavities distributed along its length direction, and the heat insulation layer is made of silicone rubber.

[0011] Optionally, the interior of the heat-insulating cavity is filled with heat-insulating cotton, and the heat-insulating cotton is made of glass fiber.

[0012] Optionally, a plurality of concave grooves are evenly formed on a side of the reinforcement layer not covered by the heat insulation layer.

[0013] Compared with the prior art, the utility model provides an electric heating belt capable of centralized heat dissipation, which has the following beneficial effects:

[0014] 1. The utility model uses a heat insulation layer to cover the outside of the reinforcement layer, and makes the exposed side of the reinforcement layer directly fit the pipeline, so as to help the heat of the electric heating belt to concentrate on the heated object and help improve the utilization rate of heat;

[0015] 2. The interior of the heat insulation layer in the utility model is also filled with heat insulation cotton, which can improve the heat insulation effect of the heat insulation layer, thereby further improving the heat utilization rate of the electric heating belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of an existing electric heating cable structure;

[0017] Figure 2 It is a schematic diagram of the structure of the utility model;

[0018] Figure 3 It is a cross-sectional view of the structure of the utility model.

[0019] In the figure: 100, copper core conductor; 200, conductive plastic layer; 300, inner sheath layer; 400, shielding layer; 500, reinforcement layer; 501, positioning bulge; 502, concave groove; 600, thermal insulation layer; 601, positioning groove; 602, thermal insulation cavity; 603, thermal insulation cotton. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example: See Figure 2 and Figure 3 The invention discloses an electric heating tape capable of concentrated heat dissipation, comprising two parallel copper core conductors 100, the two copper core conductors 100 are wrapped with a flat conductive plastic layer 200, the conductive plastic layer 200 is made of semiconductor PTC material with positive temperature coefficient characteristics, the conductive plastic layer 200 is also wrapped with an inner sheath layer 300, a shielding layer 400 and a reinforcing layer 500 in sequence, wherein the inner sheath layer 300 is made of PVC material, the shielding layer 400 is made of tinned copper wire braided layer, the reinforcing layer 500 is made of fluoroplastic material, and the reinforcing layer 500 is made of fluoroplastic material. The outside of the layer 500 is covered with an insulation layer 600, and the insulation layer 600 is a three-section structure. The left and right sections of the insulation layer 600 are both arc-shaped, and the left and right sections of the insulation layer 600 respectively cover the two sides of the outside of the reinforcement layer 500, and the middle section of the insulation layer 600 covers the outside of one side of the reinforcement layer 500, and the insulation layer 600 is made of silicone rubber; under the covering effect of the insulation layer 600, only one side of the reinforcement layer 500 is exposed, so the insulation layer 600 can reduce the heat loss efficiency of the electric heating belt, thereby improving the heat utilization rate of the electric heating belt.

[0022] Furthermore, positioning bulges 501 are protrudingly formed on both sides of the outer surface of the reinforcement layer 500. The positioning bulges 501 are distributed along the length direction of the reinforcement layer 500, and the cross-section of the positioning bulges 501 is circular. Positioning grooves 601 that are compatible with the bulges 501 are opened on both sides of the inner surface of the thermal insulation layer 600, and the positioning bulges 501 are embedded in the positioning grooves 601; therefore, the thermal insulation layer 600 and the reinforcement layer 500 are detachably connected, especially when the thermal insulation layer 600 is damaged, it can be aligned separately for replacement and repair, thereby avoiding the scrapping of the entire electric heating tape.

[0023] On the basis of the above embodiments, the interior of the thermal insulation layer 600 is further provided with a thermal insulation cavity 602 distributed along its length direction, and the interior of the thermal insulation cavity 602 is filled with thermal insulation cotton 603, and the thermal insulation cotton 603 is made of glass fiber material, and its function is to improve the thermal insulation effect of the thermal insulation layer 600 and reduce the heat loss efficiency of the electric heating belt; in addition, a plurality of concave grooves 502 are evenly provided on the side of the reinforcing layer 500 not covered by the thermal insulation layer 600, and the concave grooves 502 can increase the surface area of ​​the reinforcing layer 500, thereby helping to improve the heat utilization rate of the electric heating belt.

[0024] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric heating tape capable of concentrated heat dissipation, comprising two copper core conductors (100) arranged in parallel, the two copper core conductors (100) being wrapped with a flat conductive plastic layer (200) on the outside, the conductive plastic layer (200) being wrapped with an inner sheath layer (300), a shielding layer (400) and a reinforcement layer (500) on the outside in sequence, characterized in that: The exterior of the reinforcing layer (500) is covered with a heat insulating layer (600), the heat insulating layer (600) being a three-section structure, the left and right sections of the heat insulating layer (600) both being arc-shaped, and the left and right sections of the heat insulating layer (600) respectively covering two sides of the exterior of the reinforcing layer (500), and the middle section of the heat insulating layer (600) covering the exterior of one side of the reinforcing layer (500); The outer surface of the reinforcing layer (500) is provided with protruding positioning bulges (501) on both sides, and the inner surface of the heat insulating layer (600) is provided with positioning grooves (601) adapted to the bulges (501) on both sides, and the positioning bulges (501) are embedded in the positioning grooves (601); The positioning bulges (501) are distributed along the length direction of the reinforcing layer (500), and the cross section of the positioning bulges (501) is circular.

2. The electric heating tape capable of concentrated heat dissipation according to claim 1, characterized in that: The heat insulation layer (600) is also provided with heat insulation cavities (602) distributed along its length direction. The heat insulation layer (600) is made of silicone rubber.

3. The electric heating tape capable of concentrated heat dissipation according to claim 2, characterized in that: The interior of the heat-insulating cavity (602) is filled with heat-insulating cotton (603), and the heat-insulating cotton (603) is made of glass fiber material.

4. The electric heating tape capable of concentrated heat dissipation according to claim 1, characterized in that: A plurality of concave grooves (502) are evenly arranged on a side of the reinforcement layer (500) not covered by the heat insulation layer (600).

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