T-shaped explosion-proof power supply junction box for ribbon heater

Abstract

The utility model belongs to the technical field of electric heating tape fitting application, and particularly discloses a T-shaped explosion-proof power supply junction box for an electric heating tape, which comprises a junction box body, an electric heating tape, three wiring terminals, three electric heating tape hole sealing insertion blocks, a sealing ring pad, an upper sealing end cover with a screw hole, a lower sealing end cover with a screw hole, an upper box cover with a screw hole, a lower box cover with a screw hole and the like. The T-shaped explosion-proof power supply junction box for the ribbon heater has the beneficial effects that 1, the T-shaped explosion-proof power supply junction box for the ribbon heater can conveniently perform wiring operation with three ribbon heaters, is excellent in sealing and explosion-proof performance, and is suitable for connection of ribbon heaters in an explosion-proof area or a wet area; 2, due to the structural design of the lower box cover with screw holes, a plurality of supporting rib plates and a plurality of heat dissipation through grooves, heat can be quickly dissipated, and meanwhile, the overall weight is reduced; and 3, the ribbon heater hole sealing insertion block with a waist-shaped structure can reduce the whole weight, reduces the manufacturing raw materials, and is attractive in appearance.

Description

Technical Field

[0001] The utility model belongs to the technical field of application of electric belt accessories, and in particular relates to a T-shaped explosion-proof power supply junction box for an electric belt. Background Art

[0002] Electric belt is a product that converts electrical energy into thermal energy, and has the characteristics of uniform heating and rapid temperature rise. It has a wide range of uses in petroleum, chemical, electric power, metallurgy, light industry, food, refrigeration, construction, gas, agricultural and sideline products production, processing and other departments. It is suitable for temperature control, heating, insulation and heating of pipelines, equipment and containers, especially when the materials therein are easy to decompose, deteriorate, crystallize, condense and freeze.

[0003] The junction box is the main component for connecting the electric heating tapes. It is used to increase the length of the electric heating tapes or to be used in more complex situations such as electric heating tapes of different powers and three-pronged pipelines on the same pipeline.

[0004] How to design an explosion-proof junction box for use with single-phase and three-phase electric heating cables is currently in urgent need of research and solution.

[0005] Therefore, based on the above problems, the utility model provides a T-shaped explosion-proof power junction box for an electric heating belt. Utility Model Content

[0006] Purpose of the utility model: The purpose of the utility model is to address the deficiencies in the prior art and provide a T-type explosion-proof power junction box for electric heating belts, which is mainly suitable for connecting electric heating belts with electric heating belts in explosion-proof areas or humid areas, and is also suitable for the assembly and construction of single-phase and three-phase electric heating belts.

[0007] Technical solution: The utility model provides a T-shaped explosion-proof power supply junction box for an electric heating belt, comprising a junction box body and an electric heating belt, wherein three wiring terminals are horizontally stepped in the cavity of the junction box body, and three electric heating belt sealing plugs with holes are arranged on the outer wall of the junction box body, and sealing ring gaskets are respectively arranged on the inner walls of the cavity on both sides of the junction box body, and upper sealing end covers with screw holes and lower sealing end covers with screw holes used in conjunction with the sealing ring gaskets are respectively arranged on both sides of the junction box body, and upper box covers with screw holes and lower box covers with screw holes used in conjunction with the junction box body are respectively arranged on the upper sealing end covers with screw holes and the lower sealing end covers with screw holes; wherein the junction box body, the upper sealing end covers with screw holes, the lower sealing end covers with screw holes, the upper box covers with screw holes, and the lower box covers with screw holes are respectively arranged as rectangular structures of the same size.

[0008] In the technical solution, the lower box cover with screw holes is configured as a rectangular frame structure, and a plurality of supporting ribs are provided on the inner wall of the lower box cover with screw holes, and a plurality of heat dissipation grooves are formed between the plurality of supporting ribs and the lower box cover with screw holes.

[0009] In the technical solution of the present invention, the electric heating belt hole sealing plug blocks are respectively arranged as waist-shaped structures.

[0010] Compared with the prior art, the T-type explosion-proof power junction box for electric heating belts of the utility model has the following beneficial effects: 1. It can conveniently carry out wiring operations with three electric heating belts, and at the same time has excellent sealing and explosion-proof properties, and is suitable for connecting electric heating belts with electric heating belts in explosion-proof areas or humid areas; 2. The structural design of the lower box cover with screw holes, a plurality of supporting ribs and a plurality of heat dissipation grooves can not only quickly dissipate heat, but also reduce the overall weight; 3. The waist-shaped electric heating belt with a perforated sealing plug can not only reduce the overall weight, but also reduce the manufacturing materials and have a beautiful appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a schematic diagram of the explosion structure of a T-type explosion-proof power junction box for an electric heating belt of the utility model;

[0013] Figure 2 It is a top view structural schematic diagram of a junction box body, a connection terminal, a sealing ring gasket, etc. of a T-shaped explosion-proof power junction box for an electric heating belt of the utility model;

[0014] Among them, the serial numbers in the figure are as follows: 10-junction box body, 101-connection terminal, 11-electric belt, 12-electric belt with hole sealing plug, 13-upper sealing end cover with screw holes, 14-upper box cover with screw holes, 15-lower sealing end cover with screw holes, 16-lower box cover with screw holes, 161-support rib plate, 162-heat dissipation groove, 17-sealing ring gasket. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0016] In the description of the present invention, it should be noted that the terms "top", "bottom", "side"

[0017] The directions or positional relationships indicated by “the other side”, “the front”, “the back”, “the middle part”, “the inside”, “the top”, “the bottom”, etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention; the terms “first”, “second”, and “third” are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms “installed”, “connected”, and “connected” 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] Embodiment 1

[0019] like Figure 1 , Figure 2 The T-type explosion-proof power connection box for electric heating belts shown in the figure comprises a connection box body 10 and an electric heating belt 11.

[0020] Three connection terminals 101 are arranged in a horizontal stepped manner in the cavity of the junction box body 10.

[0021] The outer wall of the junction box body 10 is provided with three electric heating tapes with holes and sealing plugs 12.

[0022] The inner walls of the two sides of the junction box body 10 are respectively provided with sealing rings 17.

[0023] The two sides of the junction box body 10 are respectively provided with an upper sealing end cover 13 with screw holes and a lower sealing end cover 15 with screw holes for use with the sealing ring gasket 17.

[0024] The upper sealing end cover 13 with screw holes and the lower sealing end cover 15 with screw holes are respectively provided with an upper box cover 14 with screw holes and a lower box cover 16 with screw holes used in conjunction with the junction box body 10;

[0025] Among them, the junction box body 10, the upper sealed end cover with screw holes 13, the lower sealed end cover with screw holes 15, the upper box cover with screw holes 14, and the lower box cover with screw holes 16 are respectively arranged as rectangular structures of the same size, and the three electric heating belts 11 are respectively inserted into the three electric heating belt perforated sealing plugs 12, and are located in the cavity of the junction box body 10, and are connected and fixed to the three wiring terminals 101.

[0026] Embodiment 2

[0027] Based on the embodiment, the lower box cover 16 with screw holes is configured as a rectangular frame structure, and a plurality of supporting ribs 161 are provided on the inner wall of the lower box cover 16 with screw holes. A plurality of heat dissipation grooves 162 are formed between the plurality of supporting ribs 161 and the lower box cover 16 with screw holes, which can play a certain heat dissipation and cooling function during operation, and keep the internal wiring parts connected as a whole stable and safe.

[0028] In addition, the preferred electric heating belt perforated sealing plug blocks 12 are respectively configured as waist-shaped structures, which correspondingly reduces the consumption of manufacturing raw materials, reduces the overall weight and improves the appearance.

[0029] The working principle or structural principle of the T-type explosion-proof power junction box for electric heating belts of this structure:

[0030] (1) Insert three heating tapes 11 into three heating tape hole sealing plugs 12 respectively, and place them in the cavity of the junction box body 10, and connect and fix them with three wiring terminals 101;

[0031] (2) The sealing ring gaskets 17 are respectively attached to the inner walls of the two sides of the cavity of the junction box body 10;

[0032] (3) The upper sealing end cover 13 with screw holes and the lower sealing end cover 15 with screw holes are tightly pressed against the sealing ring gaskets 17 on the inner walls of the two sides of the cavity of the junction box body 10;

[0033] (4) Align the upper box cover 14 with screw holes and the lower box cover 16 with screw holes to the surfaces of the upper sealed end cover 13 with screw holes and the lower sealed end cover 15 with screw holes, respectively, and fasten the four corners of the upper box cover 14 with screw holes, the upper sealed end cover 13 with screw holes, the junction box body 10, the lower sealed end cover 15 with screw holes, and the lower box cover 16 with screw holes in series by bolts (the bolts are not marked in the figure and do not affect the disclosure of the technical solution of this application).

[0034] The T-type explosion-proof power junction box for electric heating belts of this structure is suitable for environments with a rated power of 220V / 380V and a rated current of ≤25A or ≤40A, and the protection grade reaches IP54 and IP65.

[0035] It should be noted that, in this article, terms such as "comprises", "includes" 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 more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A T-shaped explosion-proof power supply junction box for an electric heating belt, comprising a junction box body (10) and an electric heating belt (11), characterized in that: Three connection terminals (101) are arranged in a horizontally stepped manner in the cavity of the junction box body (10). The outer wall of the junction box body (10) is provided with three electric heating tape sealing plugs (12) with holes. The inner walls of the two cavities of the junction box body (10) are respectively provided with sealing ring gaskets (17). An upper sealing end cover (13) with screw holes and a lower sealing end cover (15) with screw holes for use with a sealing ring gasket (17) are respectively arranged on both sides of the junction box body (10). The upper sealing end cover with screw holes (13) and the lower sealing end cover with screw holes (15) are respectively provided with an upper box cover with screw holes (14) and a lower box cover with screw holes (16) for use in conjunction with the junction box body (10); The junction box body (10), the upper sealing end cover with screw holes (13), the lower sealing end cover with screw holes (15), the upper box cover with screw holes (14), and the lower box cover with screw holes (16) are respectively arranged as rectangular structures with the same size.

2. The T-type explosion-proof power junction box for electric heating belt according to claim 1 is characterized in that: The lower box cover (16) with screw holes is arranged as a rectangular frame structure, and a plurality of supporting ribs (161) are arranged on the inner wall of the lower box cover (16) with screw holes, and a plurality of heat dissipation grooves (162) are formed between the plurality of supporting ribs (161) and the lower box cover (16) with screw holes.

3. The T-type explosion-proof power junction box for electric heating belt according to claim 1 is characterized in that: The electric heating belt perforated sealing plug blocks (12) are respectively arranged as waist-shaped structures.

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