Energy-saving electric heating tube
By introducing an insulated magnetic head and a nut-fixed terminal block design into the electric heating tube, combined with a threaded connection, the potential for electrical short circuits and the complexity of connections in the electric heating tube are solved, achieving efficient and safe heating and simplifying the production and maintenance process.
Patent Information
- Application Number
- CN202423156568.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing electric heating elements lack effective isolation protection in their terminal design, posing a risk of electrical short circuits. Their connection methods are complex and energy-intensive, affecting safety and stability.
The system employs an insulated magnetic head and a nut to fix the terminal block, combined with a threaded connection design to increase the stability of the connector. It also improves thermal efficiency and optimizes the heating tube structure by using nickel-chromium alloy or tungsten wire.
It improves the thermal efficiency and safety of heating elements, simplifies the production process, facilitates maintenance and installation, and extends the service life of equipment.
Smart Images

Figure CN223584355U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heating element technology, and more specifically, to an energy-saving electric heating tube. Background Technology
[0002] Electric heating elements are widely used in various heating equipment, playing a vital role, especially in industrial and household appliances. An electric heating element typically consists of a metal tube and a heating wire. During operation, an electric current flows through the heating wire to generate heat, thereby heating the surrounding material. Most existing electric heating elements employ a simple structure, typically with the heating wire evenly installed inside the tube, and their connection methods and end structures have certain limitations.
[0003] Traditional electric heating elements often use direct connection at the terminals, lacking effective isolation and protection, which may pose risks such as electrical short circuits. Furthermore, the connectors are typically fixed using welding or other complex processes, increasing production costs, resulting in lower heating efficiency and higher energy consumption, and making maintenance and replacement more difficult. The terminals often have few insulated magnetic heads, and many designs fail to adequately address insulation issues at electrical connections, potentially affecting the safety and stability of the electric heating element.
[0004] Therefore, there is an urgent need for a new type of electric heating tube design that can improve the reliability and safety of the structure while ensuring heating performance, simplify the production process, and facilitate later maintenance. Utility Model Content
[0005] The purpose of this invention is to provide an energy-saving electric heating tube that improves thermal efficiency and reduces energy loss by optimizing the structure and material of the heating tube, thereby meeting the demand for efficient and energy-saving heating.
[0006] To achieve the above objectives, the technical solution of this utility model is as follows:
[0007] An energy-saving electric heating element includes a heating element with a heating wire in close contact with the outer wall of the heating element. A terminal post is located at the end of the heating element away from the heating wire. An insulated magnetic head is mounted on the outside of the terminal post and fixed to it with two nuts. A washer is placed between the nuts. A connector is also mounted on the heating element and fixed to it by threads.
[0008] As an improvement of this utility model, the length of the connector is 25~180mm, the diameter of the connector is M18, and threaded holes are provided on both sides of the bottom of the connector (to facilitate fixed connection with other heating equipment).
[0009] As an improvement of the utility model, the distance between the heating wire close to the connecting piece side and the connecting piece is 50mm.
[0010] As an improvement of the utility model, the connecting piece diameter is 18mm, the heating pipe diameter is 12mm, and the terminal post and gasket diameter is 5mm.
[0011] As an improvement of the utility model, the heating wire is nickel-chromium alloy or tungsten wire.
[0012] As an improvement of the utility model, the heating pipe two ends horizontal distance is 200mm, and the longitudinal winding length of the heating wire is 200mm.
[0013] The energy-saving electric heating pipe has the following beneficial effects:
[0014] The heating wire and the heating pipe outer wall are in close contact, heat efficient conduction is ensured, and heat loss is reduced. The design of threaded connection and nut fixation makes the structure of the heating pipe more stable, facilitates installation and maintenance, and prolongs the service life of the equipment. The setting of the insulating magnetic head and the gasket effectively avoids poor electrical contact and improves the safety of the system. The structure design of the heating pipe enables it to be widely applied to different heating needs and meet various industrial and household applications. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a structure schematic view of one embodiment of the utility model;
[0016] Figure 2 It is a structure schematic view of one embodiment of the utility model;
[0017] Figure 3 It is Figure 1 the enlarged view of I.
[0018] LIST OF FIGURES:
[0019] 1, heating pipe; 2, heating wire; 3, terminal post; 4, insulating magnetic head; 5, nut; 6, gasket; 7, connecting piece. DETAILED DESCRIPTION
[0020] The utility model will be further illustrated below in combination with the drawings and specific embodiments, and it should be understood that the following specific embodiments are only used to illustrate the utility model and not used to limit the scope of the utility model.
[0021] In addition, the terms "mounting", "connecting", "connecting" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according of the specific circumstances.
[0022] As shown in the figure, the utility model provides an energy-saving electric heating tube 1, including heating tube 1, heating tube 1 is provided with heating wire 2, heating wire 2 is in close contact with the outer wall of heating tube 1 to improve the heat conduction efficiency, the end of heating tube 1 away from heating wire 2 is equipped with terminal post 3, terminal post 3 is equipped with insulation magnetic head 4, insulation magnetic head 4 is sleeved on the outside of terminal post 3 and is fixed on terminal post 3 through nut 5, the number of nut 5 is 2, gasket 6 is arranged between nut 5, which is used to prevent loosening or poor electrical contact between terminal post 3 and magnetic head, the heating tube 1 is also sleeved with connecting piece 7, and the connecting piece 7 is fixed on the heating tube 1 through screw threads.
[0023] The connecting piece 7 has a length of 25-180mm, a diameter of M18, and threaded holes on both sides of the bottom, facilitating fixed connection with other heating equipment.
[0024] Figure 1 As an embodiment, the connecting piece 7 has a length of 180mm. Figure 2 As an embodiment, the connecting piece 7 has a length of 25mm.
[0025] The heating wire 2 is 50mm away from the connecting piece 7 on one side.
[0026] The connecting piece 7 has a diameter of 18mm, the heating tube 1 has a diameter of 12mm, and the terminal post 3 and the gasket 6 have a diameter of 5mm.
[0027] The heating wire 2 is made of nickel-chromium alloy or tungsten wire to improve the heating efficiency.
[0028] The heating tube 1 has a horizontal distance of 200mm between both ends, and the longitudinal winding length of the heating wire 2 is 200mm.
[0029] The energy-saving electric heating tube 1 provided by the utility model has the advantages of simple structure, convenient use, high heating efficiency, long service life, high safety and the like.
[0030] When the electric current is connected with the heating wire 2 through the terminal post 3, the electric current generates heat through the heating wire 2. Since the heating wire 2 is in close contact with the outer wall of the heating tube 1, the generated heat is rapidly conducted to the heating tube 1, so that the heating tube 1 itself is heated. The M-shaped bending design of the heating tube 1 effectively expands the heating area, so that the heat is uniformly distributed on the surface of the heating tube 1, improving the heating efficiency. Since the surface of the heating tube 1 is effectively insulated and the heat loss is reduced through reasonable design, the energy consumption of the system is low, and an efficient heating process can be realized. The terminal post 3 and the insulated magnetic head 4 ensure the stability and safety of the electrical connection, and at the same time, the terminal post 3 is fixed through the gasket 6 and the nut 5, avoiding loosening caused by vibration or external force.
[0031] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0032] The accompanying drawings only illustrate the technical idea of the present application, and cannot limit the protection scope of the present application. For those skilled in the art, some improvements and refinements can be made without departing from the principle of the present application, and these improvements and refinements all fall within the protection scope of the present application.
Claims
1. An energy saving electric heating tube comprising a heating tube, characterized in that: The heating tube is provided with heating wires in close contact with the outer wall of the heating tube, and the end of the heating tube away from the heating wires is provided with a terminal post, the terminal post is provided with an insulating magnetic head, the insulating magnetic head is sleeved outside the terminal post and is fixed on the terminal post through nuts, the number of the nuts is two, a gasket is arranged between the nuts, a connecting piece is further sleeved on the heating tube, and the connecting piece is fixed on the heating tube through threads.
2. The energy-saving electric heating tube according to claim 1, characterized in that: The length of the connecting piece is 25-180 mm, the diameter of the connecting piece is M18, and threaded holes are arranged on both sides of the bottom of the connecting piece.
3. The energy-saving electric heating tube according to claim 2, characterized in that: The distance between the side of the heating wire close to the connecting piece and the connecting piece is 50 mm.
4. The energy-saving electric heating pipe according to claim 1, characterized in that: The diameter of the connecting piece is 18 mm, the diameter of the heating tube is 12 mm, and the diameter of the terminal post and the gasket is 5 mm.
5. The energy-saving electric heating tube according to any one of claims 1-4, characterized in that: The heating wire is made of nickel-chromium alloy or tungsten wire.
6. The energy-saving electric heating pipe according to claim 1, characterized in that: The horizontal distance between the two ends of the heating tube is 200 mm, and the longitudinal winding length of the heating wire is 200 mm.