Heating core assembly of heat gun

Abstract

The utility model relates to the technical field of heating core assemblies of heat guns, in particular to a heating core assembly of a heat gun, which comprises a metal tube, a heating core structure is inserted in the metal tube and comprises a plurality of ceramic rings, and a plurality of ceramic plates are arranged on the outer sides of the ceramic rings. A first inserting groove and a second inserting groove are formed in the contact positions of the ceramic plate and the ceramic ring respectively, a plurality of limiting grooves are formed in the outer side of the ceramic plate, heating resistance wires are spirally wound in the limiting grooves, a plurality of isolation structures are arranged on the outer side of the ceramic plate, each isolation structure comprises a ceramic curved plate, and connecting blocks are fixed to the positions, close to the two ends, of one side of each ceramic curved plate. The side surface of the connecting block is provided with a cross-shaped plugging port. The heat gun heating core assembly solves the problems that most existing heat gun heating core assemblies are of an integrated structure, the ventilation effect is poor, the heat resistance pressure of ceramic columns is increased, and when the ceramic columns are replaced, the cost is high, and resources are wasted.

Description

TECHNICAL FIELD

[0001] The utility model relates to hot -air gun heating core subassembly technical field, specifically point to a kind of heating core subassembly of hot -air gun. BACKGROUND

[0002] Hot -air gun, also known as hot -air plastic welder, hot -air fusion machine etc., is a kind of tool using the hot air that the gun core of heating resistance wire blows to component welding and picking up component;

[0003] The existing hot -air gun heating core subassembly structure generally includes a metal pipe, ceramic column is inserted in the metal pipe, heating resistance wire is spirally arranged on the outer side of the ceramic column, a plurality of through grooves are formed along the axial direction of the ceramic column for hot air circulation, but since the ceramic column is of integral structure, the area of the axial through groove is also small, the hot air circulation is small, which leads to the heat resistance pressure of the ceramic column and the metal pipe is large, not only the blowing hot air wind force is poor, but also the ceramic column is easily damaged, and after the ceramic column is damaged, the whole needs to be replaced, which is a waste of resources and high in cost. SUMMARY

[0004] The utility model solves the technical problems that the existing hot -air gun heating core subassembly is mostly of integral structure, ventilation effect is poor, which leads to the heat resistance pressure of ceramic column increasing, and when replacing ceramic column, the cost is high and resources are wasted.

[0005] To solve the above problems, the utility model adopts the technical scheme of a kind of hot -air gun heating core subassembly, including metal pipe, heating core structure is inserted in the metal pipe, heating core structure includes a plurality of ceramic rings, a plurality of ceramic plates are arranged on the outer side of the ceramic ring, plug-in slot one and plug-in slot two are respectively formed at the contact position of ceramic plate and ceramic ring, a plurality of limiting grooves are formed on the outer side of the ceramic plate, heating resistance wire is spirally wound in the limiting groove, a plurality of isolation structures are arranged on the outer side of the ceramic plate, the isolation structure includes ceramic curved surface plate, connecting block is fixed on one side of ceramic curved surface plate close to both ends, cross plug-in interface is formed on the side surface of connecting block.

[0006] As a further scheme of the utility model: the curvature of the outer side of the ceramic curved surface plate is equal to the curvature of the inner side of the metal pipe, which facilitates the close installation of the heating core structure and the metal pipe.

[0007] As a further scheme of the utility model: different digital bumps are fixed on one end of a plurality of ceramic plates, which facilitates the sequential installation of ceramic plates and facilitates the spiral positioning of heating resistance wire.

[0008] As a further scheme of the utility model: heating resistance wire is clamped between ceramic curved surface plate and ceramic plate, which can limit the position of heating resistance wire.

[0009] As a further scheme of the present application, the cross-shaped insertion interface is arranged at the connecting position of the ceramic plate and the ceramic ring, and can fix the position of the connecting block.

[0010] As a further scheme of the present application, wires are fixed at the two ends of the heating resistance wire, and are used for connecting with the circuit board of the hot air gun, so as to facilitate the power supply and heating of the heating resistance wire.

[0011] Compared with the prior art, the present application has the advantages that: the present application increases the ceramic rings and the ceramic plate, and when the ceramic plate or the ceramic ring is damaged, the ceramic plate or the ceramic ring can be replaced individually, thereby reducing the repair cost; and the ceramic ring is used as the support of the heating resistance wire, the air duct is increased, the circulation of the hot air is facilitated, the heating pressure of the ceramic ring and the ceramic plate is reduced, and the service life is increased. BRIEF DESCRIPTION OF DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with the embodiments of the present application, and do not constitute a limitation on the present application. In the drawings:

[0013] Figure 1 It is an overall structure perspective view of the heating core assembly of the hot air gun.

[0014] Figure 2 It is an internal structure schematic view of the metal pipe in the heating core assembly of the hot air gun.

[0015] Figure 3 It is an explosion view of the heating core structure in the heating core assembly of the hot air gun.

[0016] Figure 4 It is an enlarged view of the A part structure in the heating core assembly of the hot air gun.

[0017] In the drawings:

[0018] 1, metal pipe; 2, ceramic ring; 3, ceramic plate; 4, heating resistance wire; 5, ceramic curved plate; 6, connecting block; 7, digital bump; 2.1, insertion groove two; 3.1, insertion groove one; 3.2, limiting groove; 6.1, cross-shaped insertion interface. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0020] The utility model provides a technical scheme: in order to solve the existing problem in the background art.

[0021] Combining the drawings Figure 1 , 3 , 4, it can be known that the metal pipe 1 is internally inserted with a heating core structure, the heating core structure comprises a plurality of ceramic rings 2, a plurality of ceramic plates 3 are arranged on the outer side of the ceramic rings 2, the ceramic plates 3 and the ceramic rings 2 are in contact respectively and are provided with plug-in grooves one 3.1 and plug-in grooves two 2.1, so that the ceramic plates 3 and the ceramic rings 2 are closely installed, a plurality of limiting grooves 3.2 are formed on the outer side of the ceramic plates 3, heating resistance wires 4 are spirally wound in the limiting grooves 3.2 and are used for heating, a plurality of isolation structures are arranged on the outer side of the ceramic plates 3, the isolation structure comprises a ceramic curved plate 5, the ceramic curved plate 5 is fixed with a connecting block 6 on one side close to both ends, a cross plug-in port 6.1 is formed on the side face of the connecting block 6, and the both ends of the heating resistance wires 4 are fixed with electric wires and are used for being connected with the circuit board of the hot air gun, so that the heating resistance wires 4 are conveniently electrified and heated;

[0022] Combining the drawings Figure 2 It can be known that the outer side curvature of the ceramic curved plate 5 is equal to the inner side curvature of the metal pipe 1, the heating core structure and the metal pipe 1 are closely installed, a plurality of ceramic plates 3 are fixed with different digital convex blocks 7 on one end, the ceramic plates 3 can be conveniently installed according to the order, and the spiral positioning of the heating resistance wires 4 is facilitated; the heating resistance wires 4 are clamped between the ceramic curved plate 5 and the ceramic plates 3, and the position of the heating resistance wires 4 can be limited; the cross plug-in port 6.1 is inserted at the connecting position of the ceramic plates 3 and the ceramic rings 2, and the position of the connecting block 6 can be fixed.

[0023] The working principle of the present application is as follows: when the heating core assembly is installed, firstly, the ceramic plates 3 are inserted through the plug-in grooves one 3.1 and the plug-in grooves two 2.1 according to the order of the digital convex blocks 7, are arranged on the outer side of the plurality of ceramic rings 2, then the heating resistance wires 4 are spirally wound in the limiting grooves 3.2, then the cross plug-in port 6.1 is inserted at the connecting position of the ceramic plates 3 and the ceramic rings 2, so as to fix the position of the heating resistance wires 4, then the combined whole structure is inserted into the metal pipe 1, and finally the whole structure is assembled at the gun mouth of the hot air gun, so that the installation is completed.

[0024] The utility model and its implementation mode have been described above, and this description is not restrictive, and the drawings shown are only one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if the ordinary skilled person in the art is inspired, without departing from the creative purpose of the utility model, similar structure modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A heat-generating core assembly of a hot air gun, comprising a metal tube (1) in which a heat-generating core structure is inserted, characterized in that: The heating core structure comprises a plurality of ceramic rings (2), the outer side of the ceramic ring (2) is provided with a plurality of ceramic plates (3), the contact part of the ceramic plate (3) and the ceramic ring (2) is respectively provided with a plug-in slot one (3.1) and a plug-in slot two (2.1), the outer side of the ceramic plate (3) is provided with a plurality of limiting grooves (3.2), the limiting groove (3.2) is spirally wound with a heating resistance wire (4), the outer side of the ceramic plate (3) is provided with a plurality of isolation structures, the isolation structure comprises a ceramic curved plate (5), the ceramic curved plate (5) is fixed with a connecting block (6) on one side near both ends, and the side surface of the connecting block (6) is provided with a cross plug-in port (6.1).

2. The heating element assembly of a hot air gun according to claim 1, wherein: The outer side curvature of the ceramic curved plate (5) is equal to the inner side curvature of the metal pipe (1).

3. The heating element assembly of claim 1, wherein: A plurality of the ceramic plates (3) are fixed with different digital convex blocks (7) at one end.

4. The heating element assembly of claim 1, wherein: The heating resistance wire (4) is clamped between the ceramic curved plate (5) and the ceramic plate (3).

5. The heating element assembly of a hot air gun according to claim 1, wherein: The cross plug-in port (6.1) is inserted at the connecting part of the ceramic plate (3) and the ceramic ring (2).

6. The heating element assembly of a hot air gun according to claim 1, wherein: The both ends of the heating resistance wire (4) are fixed with electric wires.

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