Novel heating module with embedded heating wire

Abstract

The utility model discloses a novel heating module with embedded heating wires, which comprises heat preservation fibers filled in a heater and a plurality of resistance wires embedded in the heat preservation fibers, and the resistance wires are arranged in parallel along the same direction. A heat dissipation groove is formed between every two resistance wires on the inner surface of the heat preservation fiber, the heat dissipation grooves form closed heat dissipation walls on the two sides of the resistance wires, and a plurality of first heat dissipation openings penetrating through the resistance wires are formed in the heat dissipation walls. The heat dissipation grooves are formed between the resistance wires embedded in the heat preservation fibers, and the heat dissipation openings are formed between the heat dissipation grooves and the resistance wires, so that heat generated by the resistance wires sealed in the heat preservation fibers can be dissipated, and heat loss caused by wrapping of the heat preservation fibers is reduced; and damage to a heated article due to contact between the resistance wire and the heated article can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric heating, in particular to a novel heating module of embedded heating wire. BACKGROUND

[0002] In the conventional heater, by laying the heat preservation fiber in the shell of the heater, and then installing the heating resistance wire on the heat preservation fiber, the heater can heat the objects. The heating resistance wire installed in the heat preservation fiber generally has two forms, the first one is half-buried or external form, and the second one is embedded form, and each form has advantages and disadvantages. The resistance wire in half-buried or external form is not blocked by the heat preservation fiber, and has high efficiency in promoting the heat in the heater, but may contact the heated object, resulting in local overheating of the heated object and damage. The resistance wire in embedded form avoids contact with the heated object, and the heating process is safer, but because it is blocked by the heat preservation fiber, its efficiency in promoting the heat in the heater is low, and the heat loss is large. SUMMARY

[0003] Therefore, the utility model aims at providing a novel heating module of embedded heating wire.

[0004] In order to solve the above technical problems, the technical scheme of the utility model is as follows: a novel heating module of embedded heating wire, which comprises heat preservation fiber filled in a heater and a plurality of resistance wires embedded in the heat preservation fiber, the plurality of resistance wires are arranged in parallel along the same direction, a heat dissipation groove is formed between every two resistance wires on the inner surface of the heat preservation fiber, the heat dissipation groove forms a closed heat dissipation wall on both sides of the resistance wire, and a plurality of first heat dissipation openings penetrating the resistance wire are formed on the heat dissipation wall.

[0005] Preferably, the first heat dissipation openings are equidistantly distributed on the surface of the heat dissipation wall.

[0006] Preferably, a plurality of second heat dissipation openings penetrating the resistance wire are formed on the inner surface of the heat preservation fiber, and the plurality of second heat dissipation openings are formed along the direction of the resistance wire.

[0007] Further, the plurality of second heat dissipation openings are arranged staggered with the plurality of first heat dissipation openings.

[0008] Preferably, the heating module is applied in a vertical or vertical heater, the plurality of resistance wires are embedded in the heat preservation fiber along the radial direction of the heater, and are arranged in parallel along the axial direction of the heater.

[0009] Furthermore, the heat dissipation grooves are also formed on the outer sides of the two resistance wires at both ends in the axial direction, and a heat dissipation wall is formed between the heat dissipation grooves and the sides of the resistance wires, and a plurality of first heat dissipation openings are formed on the heat dissipation wall.

[0010] The technical effects of the present invention are mainly reflected in the following aspects: (1) by forming heat dissipation grooves between the resistance wires embedded in the thermal insulation fiber and forming heat dissipation openings between the heat dissipation grooves and the resistance wires, the heat generated by the resistance wires enclosed in the thermal insulation fiber can be dissipated, reducing the heat loss wrapped by the thermal insulation fiber, and avoiding the resistance wires from contacting the heated items and damaging the items; (2) the heat dissipation openings formed between the inner surface of the thermal insulation fiber and the resistance wires can further reduce heat loss and also avoid the resistance wires from contacting the heated items; (3) when used in a vertical or vertical heater, by changing the resistance wires from axial extension to radial extension, the resistance wires can be prevented from deforming downward after becoming soft at high temperature, which not only affects the processing effect of the heated items, but also affects the service life of the heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a partial structural diagram of the utility model;

[0013] Figure 3 This is a partial structural diagram of Example 2 of the present utility model;

[0014] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure of part A;

[0015] Figure 5 This is a schematic diagram of the decomposition structure of implementation 3 of the utility model;

[0016] Figure 6 This is a schematic diagram of the decomposition structure of implementation 3 of the utility model;

[0017] Figure 7 For this utility model Figure 5 Schematic diagram of the enlarged structure of part B;

[0018] Figure 8 For this utility model Figure 5 Schematic diagram of the enlarged structure of part B.

[0019] 1-heating module; 2-insulating fiber; 21-heat dissipation groove; 22-heat dissipation wall; 23-first heat dissipation port; 24-second heat dissipation port; 3-resistance wire; 4-lead; 5-heater. DETAILED DESCRIPTION

[0020] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp. Example 1

[0021] according to Figures 1-2 As shown, a novel heating module with embedded heating wire, the heating module 1 includes a thermal insulation fiber 2 filled in a heater 5, a plurality of resistance wires 3 embedded in the thermal insulation fiber 2 and a lead 4 electrically connected to the resistance wire 3, and the plurality of resistance wires 3 are arranged in parallel along the same direction. The heat generated by the resistance wire 3 will be directly transferred to the thermal insulation fiber 2, and the heat will be dissipated outward through the thermal insulation fiber 2. The heat generated by the resistance wire 3 will be dispersed by the thermal insulation fiber 2 and cause heat loss, but the resistance wire 3 embedded in the thermal insulation fiber 2 can be isolated from direct contact with the heated object. Therefore, the present application forms a heat dissipation groove 21 between every two of the resistance wires 3 on the inner surface of the thermal insulation fiber 2, and the heat dissipation groove 21 forms a closed heat dissipation wall 22 on both sides of the resistance wire 3. The heat dissipation groove 21 can reduce the thickness of the corresponding position of the thermal insulation fiber 2, so that the distance between the resistance wire 3 and the heating space is reduced, which is conducive to heat dissipation, and a plurality of first heat dissipation ports 23 penetrating into the resistance wire 3 are formed on the heat dissipation wall 22. Generally, the first heat dissipation ports 23 are equidistantly distributed on the surface of the heat dissipation wall 22. The first heat dissipation ports 23 can directly dissipate the heat of the resistance wire 3 into the heating space, further reducing heat loss.

[0022] The heat dissipation groove 21 and the first heat dissipation port 23 not only reduce heat loss, but also retain part of the isolation effect between the thermal insulation fiber 2 and the heating space. The heat dissipation groove 21 is recessed in the inner surface of the thermal insulation fiber 2, and the first heat dissipation port 23 in the heat dissipation groove 21 is also recessed in the inner surface of the thermal insulation fiber 2, which can better avoid contact between the heated object and the resistance wire 3. Example 2

[0023] The difference from Example 1 is: Figures 2-3 As shown, in order to further reduce heat loss, a number of second heat dissipation openings 24 penetrating into the resistance wire 3 are formed on the inner surface of the thermal insulation fiber 2, and the number of second heat dissipation openings 24 are formed along the direction of the resistance wire 3, so that the resistance wire 3 can not only dissipate heat directly on the inner surface of the thermal insulation fiber 2, but also have a certain protective effect.

[0024] In order to fully dissipate part of the heat of the resistance wire 3 to the heating space, the second heat dissipation openings 24 and the first heat dissipation openings 23 are staggered and arranged, so that the heat can be dissipated at different positions of the resistance wire 3 at two angles. Example 3

[0025] The difference from example 1 is that, as shown in Figures 5-8 , the heating module 1 is applied in a vertical or vertical heater 5, if several resistance wires 3 are installed along the axial direction of the heater 5, when the resistance wires 3 generate high temperature, the resistance wires 3 will become soft, and the local temperature will be raised under the action of gravity, which not only affects the processing effect of the heated object, but also affects the service life of the heater. Therefore, in this application, several resistance wires 3 are embedded in the heat preservation fiber 2 along the radial direction of the heater 5, and arranged in parallel along the axial direction of the heater 5. After the resistance wires 3 become soft at high temperature, the deformation of the resistance wires 3 is small, the range is small, and the local temperature will not be raised too much, which will affect the processing effect of the heated object. The heat preservation fiber 2 applied in the heating module 1 is not limited to the cylindrical shape as shown in Figure 6 or the square type as shown in Figure 8 . Example 4

[0026] The difference from example 3 is that the heat dissipation groove 21 is also formed on the outer side of the two resistance wires 3 at both ends of the axial direction of the heating module 1, the heat dissipation wall 22 is formed between the heat dissipation groove 21 and the side of the resistance wire 3, and a plurality of first heat dissipation openings 23 are formed on the heat dissipation wall 22, so that the resistance wires 3 at both ends can also fully dissipate heat.

Claims

1. A novel heating module with an embedded heating wire, comprising a heat-insulating fiber filled in a heater and a plurality of resistance wires embedded in the heat-insulating fiber, wherein the resistance wires are arranged in parallel along the same direction, and characterized by: A heat dissipation groove is formed between every two resistance wires on the inner surface of the thermal insulation fiber. The heat dissipation groove forms a closed heat dissipation wall on both sides of the resistance wire. A plurality of first heat dissipation openings penetrating into the resistance wire are formed on the heat dissipation wall.

2. The novel heating module with built-in heating wire according to claim 1, characterized in that: The first heat dissipation openings are distributed equidistantly on the surface of the heat dissipation wall.

3. The novel heating module with built-in heating wire according to claim 1 or 2, characterized in that: A plurality of second heat dissipation openings penetrating into the resistance wire are formed on the inner surface of the heat-insulating fiber, and the plurality of second heat dissipation openings are formed along the direction of the resistance wire.

4. The novel heating module with built-in heating wire according to claim 3, characterized in that: The second heat dissipation openings are arranged in a staggered manner with the first heat dissipation openings.

5. The novel heating module with built-in heating wire according to claim 1, characterized in that: The heating module is used in a vertical or upright heater, and a plurality of resistance wires are embedded in the thermal insulation fibers along the radial direction of the heater and arranged in parallel along the axial direction of the heater.

6. The novel heating module with built-in heating wire according to claim 5, characterized in that: The heat dissipation grooves are also formed on the outer sides of the two resistance wires at both ends in the axial direction, and a heat dissipation wall is formed between the heat dissipation grooves and the sides of the resistance wires, and a plurality of first heat dissipation openings are formed on the heat dissipation wall.

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