Electric heating tube surface temperature homogenization heat dissipation structure

Abstract

The utility model discloses an electric heating tube surface temperature homogenization heat dissipation structure, which relates to the technical field of electric heating tubes, and comprises an electric heating tube main body, a heat conduction tube is arranged outside the electric heating tube main body, a connecting tube is arranged at the top of the heat conduction tube, and the connecting tube is arranged on the electric heating tube main body. A sliding rod is arranged outside the heat conduction pipe in a sliding mode, heat dissipation fins are arranged on the surface of the sliding rod and make contact with the heat conduction pipe, a threaded ring is arranged outside the connecting pipe in a sliding mode and is in threaded connection with the heat conduction pipe and the sliding rod, and the heat dissipation fins are arranged to be spiral. The heat dissipation fins and the heat conduction pipe are made of red copper, and the four sliding rods are circumferentially distributed at equal intervals, so that the heat dissipation fins can be conveniently mounted and dismounted, the heat dissipation fins can be conveniently and deeply cleaned, the situation that the heat dissipation efficiency is reduced due to dust accumulation is avoided, operation is easy, and practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of electric heating tube technology, specifically to a heat dissipation structure for uniform surface temperature of an electric heating tube. Background Technology

[0002] An electric heating element is an industrial and domestic heating element that converts electrical energy into heat energy. Its core structure consists of a metal tube (usually stainless steel, copper, or titanium alloy) encapsulating a resistance wire (such as nickel-chromium alloy) and filling it with high-purity magnesium oxide powder as an insulating and heat-conducting medium. When energized, the resistance wire heats up and is evenly conducted to the metal shell through the magnesium oxide layer, achieving efficient heating of the medium. Electric heating elements are characterized by high temperature resistance (up to 1200℃), high thermal efficiency (up to 95% or more), and compact structure. They are widely used in liquid heating (such as boilers and water tanks), air heating (oven and fan heaters), and mold temperature control (injection molding machines).

[0003] In the prior art, in order to increase the heat dissipation area, heat dissipation fins are added to the outside of the electric heating tube during use. The heat dissipation fins are mostly fixed to the electric heating tube by welding. However, it is inconvenient to disassemble them during cleaning and maintenance, which may result in some areas not being cleaned properly, affecting the subsequent heat dissipation efficiency.

[0004] To address this, a heat dissipation structure for uniform surface temperature of electric heating tubes is proposed. Utility Model Content

[0005] The purpose of this invention is to address the problem that, in order to increase the heat dissipation area of ​​an electric heating element during use, heat dissipation fins are often added to the outside of the heating element. However, the heat dissipation fins are mostly fixed to the heating element by welding, which makes it inconvenient to disassemble them during cleaning and maintenance, and may result in incomplete cleaning of certain areas, affecting the subsequent heat dissipation efficiency. This invention provides a heat dissipation structure that achieves uniform surface temperature of the electric heating element.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A heat dissipation structure for uniform surface temperature of an electric heating tube includes an electric heating tube body, a heat-conducting tube disposed on the outside of the electric heating tube body, a connecting tube disposed on the top of the heat-conducting tube and disposed on the electric heating tube body, a slide rod slidably disposed on the outside of the heat-conducting tube, heat dissipation fins disposed on the surface of the slide rod and in contact with the heat-conducting tube, and a threaded ring slidably disposed on the outside of the connecting tube and threadedly connected to the heat-conducting tube and the slide rod.

[0008] Furthermore, the heat dissipation fins are spiral-shaped, and both the heat dissipation fins and the heat pipes are made of copper.

[0009] Furthermore, the number of sliding rods is set to four, which are distributed equidistantly in a circle.

[0010] Furthermore, four grooves are provided on the outer wall of the heat pipe, and the slide rod is slidably installed on the inner wall of the groove.

[0011] Furthermore, both the connecting pipe and one of the slide rods have indicator grooves on their surfaces, and the two indicator grooves correspond to each other.

[0012] Furthermore, the heat-conducting pipe and the connecting pipe are fixedly connected, and the heat-conducting pipe, the connecting pipe and the main body of the electric heating pipe are also fixedly connected.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention, through the design of a sliding rod, threaded ring, and an indicator groove, facilitates the installation of the sliding rod, preventing thread misalignment that could affect the connection and locking of the threaded ring. The sliding rod positions the heat dissipation fins onto the heat pipe, and the threaded ring secures the sliding rod and heat pipe together. This increases the heat dissipation area of ​​the heat dissipation fins. For maintenance, the indicator groove can be used to release the lock on the sliding rod, allowing the heat dissipation fins to be individually removed for cleaning and maintenance. This facilitates the installation and removal of the heat dissipation fins, enabling deep cleaning and preventing dust accumulation that could reduce heat dissipation efficiency. The design is simple to operate and highly practical. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a schematic diagram of the threaded ring of this utility model.

[0017] Figure 3 This is a schematic diagram of the slide bar of this utility model.

[0018] Reference numerals: 1. Main body; 2. Heat pipe; 3. Connecting pipe; 4. Slide rod; 5. Heat dissipation fins; 6. Threaded ring; 7. Indicator groove. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] The electrical components mentioned in this article are all connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can be used for control.

[0023] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] like Figure 1-3 As shown, a heat dissipation structure for uniform surface temperature of an electric heating tube includes an electric heating tube body 1, a heat-conducting tube 2 disposed on the outside of the electric heating tube body 1, a connecting tube 3 disposed on the top of the heat-conducting tube 2 and disposed on the electric heating tube body 1, a slide rod 4 slidably disposed on the outside of the heat-conducting tube 2, heat dissipation fins 5 disposed on the surface of the slide rod 4 and in contact with the heat-conducting tube 2, and a threaded ring 6 slidably disposed on the outside of the connecting tube 3 and threadedly connected to the heat-conducting tube 2 and the slide rod 4. In this embodiment, it is described that the electric heating tube body 1 is composed of a metal shell, a spiral resistance wire, and high-density magnesium oxide powder (Mg). Composed of an insulating layer and other components, the heat sink fins are spirally wound with high-density magnesium oxide powder filling, ensuring uniform radial heat conduction. The heat sink fins 5 can be positioned and installed on the heat pipe 2 via the slide rod 4. The slide rod 4 and heat pipe 2 can be threaded together via the indicator groove 7 to lock them in place. The heat sink fins 5 can increase the heat dissipation area. If maintenance is required, the lock on the slide rod 4 can be released via the threaded ring 6, allowing the heat sink fins 5 to be removed individually for cleaning and maintenance. This facilitates the installation and removal of the heat sink fins 5, enables deep cleaning, and prevents dust accumulation that could reduce heat dissipation efficiency. The operation is simple and highly practical.

[0025] like Figure 1-3 As shown, the heat dissipation fins 5 are spiral-shaped, and both the heat dissipation fins 5 and the heat pipe 2 are made of copper. In this embodiment, by setting the shape of the heat dissipation fins 5, the heat dissipation surface area is increased by 3 times compared to the bare pipe, and the heat pipe 2 and the heat dissipation fins 5 are made of copper, which has good thermal conductivity.

[0026] like Figure 1-3 As shown, the number of slide bars 4 is set to four, which are distributed equidistantly in a circle. In this embodiment, the number of slide bars 4 is set to improve the support and positioning effect of the heat dissipation fins 5.

[0027] like Figure 3 As shown, four grooves are provided on the outer wall of the heat pipe 2, and the slide rod 4 is slidably installed on the inner wall of the groove. In this embodiment, the slide rod 4 can be accurately positioned by setting the groove and cooperating with the connecting pipe 3.

[0028] like Figure 1 As shown, the surface of the connecting pipe 3 and one of the slide rods 4 are provided with indicator grooves 7, and the two indicator grooves 7 correspond to each other. In this embodiment, the setting of indicator grooves 7 makes it easier to avoid thread misalignment when the slide rod 4 is installed, which would affect the connection and locking of the threaded ring 6.

[0029] like Figure 1-3 As shown, the heat pipe 2 and the connecting pipe 3 are fixedly connected, and the heat pipe 2, the connecting pipe 3 and the electric heating tube body 1 are fixedly connected. In this embodiment, the heat pipe 2 and the connecting pipe 3 are used to protect the electric heating tube body 1 from the outside while conducting heat.

[0030] In summary, the electric heating element body 1 is composed of a metal shell, a spiral resistance wire, and a high-density magnesium oxide (MgO) filled insulation layer. The spiral winding of the resistance wire combined with the high-density magnesium oxide filling ensures uniform radial heat conduction. The heat dissipation fins 5 can be positioned and installed on the heat conduction pipe 2 via the slide rod 4. The indicator groove 7 allows for a threaded connection between the slide rod 4 and the heat conduction pipe 2, locking them in place. The heat dissipation fins 5 increase the heat dissipation area. For maintenance, the lock on the slide rod 4 can be released via the threaded ring 6, allowing the heat dissipation fins 5 to be individually removed for cleaning and maintenance. This facilitates the installation and removal of the heat dissipation fins 5 and allows for thorough cleaning. Cleaning prevents dust accumulation that could reduce heat dissipation efficiency. The system is simple to operate and highly practical. The shape of the heat dissipation fins 5 increases the heat dissipation surface area by 3-5 times compared to bare tubes. The use of copper for both the heat pipe 2 and the heat dissipation fins 5 ensures good thermal conductivity. The number of sliding rods 4 improves the support and positioning of the heat dissipation fins 5. The sliding grooves, in conjunction with the connecting pipe 3, allow for precise positioning of the sliding rods 4. The indicator groove 7 helps prevent thread misalignment during installation, ensuring a secure connection with the threaded ring 6. The heat pipe 2 and connecting pipe 3 provide external protection for the electric heating element body 1 while simultaneously conducting heat.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation structure for uniform surface temperature of an electric heating tube, comprising an electric heating tube body (1), characterized in that, A heat-conducting pipe (2) is provided on the outside of the electric heating tube body (1). A connecting pipe (3) is provided on the top of the heat-conducting pipe (2) and the connecting pipe (3) is provided on the electric heating tube body (1). A sliding rod (4) is slidably provided on the outside of the heat-conducting pipe (2). Heat dissipation fins (5) are provided on the surface of the sliding rod (4) and the heat dissipation fins (5) are in contact with the heat-conducting pipe (2). A threaded ring (6) is slidably provided on the outside of the connecting pipe (3) and the threaded ring (6) is threadedly connected to the heat-conducting pipe (2) and the sliding rod (4).

2. The heat dissipation structure for uniform surface temperature of an electric heating tube according to claim 1, characterized in that, The heat dissipation fins (5) are spiral in shape, and both the heat dissipation fins (5) and the heat pipes (2) are made of copper.

3. The heat dissipation structure for uniform surface temperature of an electric heating tube according to claim 1, characterized in that, The number of slide bars (4) is set to four, which are distributed equidistantly in a circle.

4. The heat dissipation structure for uniform surface temperature of an electric heating tube according to claim 1, characterized in that, The outer wall of the heat pipe (2) is provided with four sliding grooves, and the sliding rod (4) is slidably installed on the inner wall of the sliding groove.

5. The heat dissipation structure for uniform surface temperature of an electric heating tube according to claim 1, characterized in that, The connecting pipe (3) and one of the slide bars (4) are provided with indicator grooves (7), and the two indicator grooves (7) correspond to each other.

6. The heat dissipation structure for uniform surface temperature of an electric heating tube according to claim 1, characterized in that, The heat-conducting pipe (2) and the connecting pipe (3) are fixedly connected, and the heat-conducting pipe (2), the connecting pipe (3) and the electric heating pipe body (1) are fixedly connected.

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