Deformation type single-end outgoing line heating element

Abstract

The utility model relates to a deformation type single-end outgoing line heating element, which comprises a heating core and insulation filling powder, a metal shell is wrapped outside the heating core and the insulation filling powder, the heating core is connected with a lead, the metal shell is provided with two semicircular columns, a deformation groove is arranged between the two semicircular columns, and the deformation groove is provided with a deformation groove. The deformation groove extends from one end of the metal shell to the other end, a metal sleeve is arranged on the outer side of the metal shell in a sleeved mode, and the opening end of the metal sleeve is fixedly connected with a fixed limiting piece. The deformation groove is formed in the metal shell, thermal expansion is conducted on the structure in the using process, the metal shell and the metal sleeve are tightly attached, the filling gap is reduced, heat loss is reduced, and the heat conduction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating, in particular to a deformation-type single-end outlet heating element. Background Art

[0002] The traditional single-end heating tube needs to be designed with a concave bottom during design and production to protect the structural stability of the heating tube. Usually, after adding the mid-bottom, the non-heating area at the end reaches 8-10mm, which is extremely inconvenient for the use environment with end heating. Under the bottom contact heating condition, the traditional single-end heating tube is far away from the heating target, resulting in more heat loss and low thermal energy utilization efficiency. Utility Model Content

[0003] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: a deformable single-end outlet heating element, comprising: a heating core and insulating filling powder, the outer side of the heating core and the insulating filling powder is wrapped with a metal shell, the heating core is connected to a wire, the metal shell is provided with two semi-arc columns, a deformation groove is provided between the two semi-arc columns, the deformation groove extends from one end of the metal shell to the other end, a metal sleeve is provided on the outer side of the metal shell, and a fixed limit plate is fixedly connected to the open end of the metal sleeve.

[0004] Preferably, the fixed limiting plate is fixedly connected to a right-angle fixing plate, and the right-angle fixing plate is provided with an inlet end and an outlet end for the wire to pass through, and the inlet end and the outlet end form an angle of 90 degrees.

[0005] Preferably, a Teflon protective head matching the wire is arranged in the metal shell.

[0006] Preferably, a hemispherical structure is provided at one end of the metal shell away from the fixed limiting piece.

[0007] Preferably, a docking portion is provided at one end of the metal sleeve away from the fixed limiting plate, and the docking portion is provided with an annular groove, and the annular groove is coaxially arranged with the outer side wall of the metal sleeve.

[0008] Preferably, the fixed limiting plate is provided with two locking holes.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. By opening a deformation groove in the metal shell, the structure is thermally expanded during use, so that the metal shell and the metal sleeve fit closely, the filling gap is reduced, the heat loss is reduced, and the heat conduction efficiency is increased.

[0011] 2. By setting the right-angle fixing plate, the wires can be protected.

[0012] 3. By setting a Teflon protective head, the electrode extending from the wire is led out from the middle, which is used to isolate the extended electrode from the metal outer tube and protect the internal structure at the same time.

[0013] 4. A hemispherical structure is provided at one end of the metal shell away from the fixed limit plate, which is suitable for the metal sleeve and supports the structure at the same time.

[0014] 5. The annular groove reduces the distance between the bottom heating area and the heating target, reduces heat loss, improves heating efficiency, and reduces additional heat consumption caused by the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a deformed single-ended heating element of the utility model;

[0016] Figure 2 This is a cross-sectional view of the overall structure of the deformed single-ended heating element of the utility model;

[0017] Figure 3 It is a partial structural schematic diagram of a deformed single-ended heating element of the utility model;

[0018] In the figure: 1. Metal sleeve; 101. Annular groove; 2. Heating core; 3. Insulating filling powder; 4. Metal shell; 401. Deformation groove; 5. Fixed limit plate; 6. Teflon protective head; 7. Right-angle fixing plate; 8. Wire. DETAILED DESCRIPTION

[0019] 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.

[0020] like Figures 1 to 3 As shown, the utility model provides a technical solution: a deformable single-end outlet heating element, comprising: a heating core 2 and an insulating filling powder 3, the outer side of the heating core 2 and the insulating filling powder 3 (compacted state) is wrapped with a metal shell 4, the heating core 2 is connected to a wire 8, the metal shell 4 is provided with two semi-arc columns, a deformation groove 401 is provided between the two semi-arc columns, the deformation groove 401 extends from one end of the metal shell 4 to the other end, a metal sleeve 1 is provided on the outer side of the metal shell 4, and laser spot welding is adopted between the metal shell 4 and the metal sleeve 1.

[0021] The deformation groove 401 is arranged in a long strip shape. When the heating core 2 drives the insulating filling powder 3 to heat, the deformation groove 401 causes the structure to expand thermally during the use of the heating element, so that the metal shell 4 and the metal sleeve 1 fit closely, the filling gap is reduced, the heat loss is reduced, and the overall sealing and heat conduction efficiency are improved.

[0022] A hemispherical structure is provided at one end of the metal shell 4 away from the fixed limit plate 5, which is applicable to the metal sleeve 1 and supports the structure at the same time. After the heating core 2 is bent, the heating area is evenly distributed to achieve the heating effect at the bottom. (The metal shell 4 is arranged in a U shape as a whole, consisting of two semi-arc columns, and the deformation groove 401 is arranged between the two semi-arc columns.) The bottom end is polished into a hemispherical structure, which is applicable to the metal sleeve 1 and supports the structure at the same time.

[0023] The open end of the metal sleeve 1 is fixedly connected with a fixed stopper 5. The fixed stopper 5 is provided with two locking holes, which are convenient for connecting with the right-angle fixing plate 7.

[0024] The fixed stopper 5 is fixedly connected with a right angle fixing piece 7, and the right angle fixing piece 7 is provided with an inlet and an outlet for the wire 8 to pass through, and the inlet and outlet form a 90 degree angle. The right angle fixing piece 7 is provided to protect the wire 8.

[0025] A Teflon protective head 6 is provided at the contact end of the wire 8 and the fixed limit plate 5. By providing the Teflon protective head 6, the electrode extending from the wire 8 is led out from the middle thereof, which serves to isolate the extending electrode from the metal shell 4 and protect the internal structure at the same time.

[0026] The metal sleeve 1 is provided with a docking portion at one end away from the fixed limiting plate 5, and the docking portion is provided with an annular groove 101, which is coaxially arranged with the outer wall of the metal sleeve 1. The annular groove 101 reduces the distance between the bottom heating area and the heating target, reduces the heat loss, improves the heat efficiency, and reduces the extra heat consumption caused by the structure.

[0027] like Figures 1 to 3 As shown, when working, for the bottom contact heating application scenario, the heating element is driven to contact the product. After the contact, the wire 8 is energized, and the heating core 2 is heated (the insulating filling powder 3 plays an insulating role, usually to prevent voltage leakage and leakage in a high temperature environment). When heated to a specified temperature, the metal shell 4 begins to expand and deform, so that the metal shell 4 fits tightly with the metal sleeve 1, the filling gap is reduced, the heat loss is reduced, and the heat conduction efficiency is increased.

[0028] The embodiments disclosed in the present utility model are preferred embodiments, but are not limited thereto. Ordinary technicians in this field can easily understand the spirit of the present utility model based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present utility model, they are all within the protection scope of the present utility model.

Claims

1. A deformable single-ended heating element, comprising: A heating core and insulating filling powder, wherein the outer side of the heating core and the insulating filling powder is wrapped with a metal shell, and the heating core is connected to a wire. It is characterized in that the metal shell is provided with two semi-arc columns, a deformation groove is provided between the two semi-arc columns, and the deformation groove extends from one end of the metal shell to the other end. A metal sleeve is provided on the outer side of the metal shell, and a fixed limit plate is fixedly connected to the open end of the metal sleeve.

2. The deformation-type single-ended heating element according to claim 1, characterized in that: The fixed limiting plate is fixedly connected to a right-angle fixing plate, and the right-angle fixing plate is provided with an inlet end and an outlet end for the wire to pass through, and the inlet end and the outlet end form an angle of 90 degrees.

3. The deformation-type single-ended heating element according to claim 1, characterized in that: A Teflon protective head matched with the wire is arranged in the metal shell.

4. The deformation-type single-ended heating element according to claim 1, characterized in that: A hemispherical structure is arranged at one end of the metal shell away from the fixed limiting piece.

5. The deformation-type single-ended heating element according to claim 1, characterized in that: A butt joint is arranged at one end of the metal sleeve away from the fixed limiting piece, and an annular groove is arranged coaxially with the outer side wall of the metal sleeve.

6. The deformation-type single-ended heating element according to claim 1, characterized in that: The fixed limiting piece is provided with two locking holes.

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