Nano infrared energy-saving electric heating coil

Abstract

The utility model discloses a nanometer infrared ray energy-saving electric heating ring, which comprises a cylinder body, an infrared ray heating tube, end covers and a shell, the cylinder body is composed of two half cylinder bodies, the end covers are arranged at two ends of the cylinder body, through holes are arranged on the end covers, the infrared ray heating tube is arranged in a mounting position, the shell wraps the outer sides of the cylinder body and the end covers, the shell comprises a peripheral part, an inner circle part and a connecting part, the outer peripheral part covers the outer sides of the cylinder body and the end cover, the inner circle part covers the inner wall of the through hole, the outer peripheral part and the inner circle part are connected through a connecting part, the connecting part comprises a triangular connecting part, the small end of the triangular connecting part is connected with the inner circle part, and the large end of the triangular connecting part is connected with the outer peripheral part. The peripheral part and the inner circle part of the shell are connected through the connecting part, the connecting part comprises the triangular connecting part, and the small end is closer to the infrared heating tube, so that the heat conduction area is very small, the heat conduction is greatly reduced, the temperature of the surface of the shell is greatly reduced, the heat loss is reduced to a great extent, and the energy-saving effect is achieved.

Description

Technical Field

[0001] The utility model belongs to an infrared electric heating coil, in particular to a nano-infrared energy-saving electric heating coil. Background Art

[0002] Before injection molding production, granular plastic particles need to be melted first. The current method is to melt them in the input pipeline. The input pipeline needs a certain high temperature to successfully melt the plastic particles. The current method is to set an electric heating coil on the outer ring of the input pipeline. Most of the electric heating coils on the market are integral. For example, the electric heating coil with the application number 201921988803.7 discloses an electric heating coil applied to an injection molding machine, and the whole shell is integral. Therefore, the heat of the electric heating coil is directly conducted from the inside to the whole shell, making the temperature of the shell rise to 60° or even higher, that is, the surface temperature of the shell is too high, resulting in more heat loss. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a nano-infrared energy-saving electric heating coil that can solve at least one of the above problems.

[0004] According to one aspect of the utility model, a nano-infrared energy-saving electric heating coil is provided, which includes a cylinder body, an infrared heating tube, end covers and an outer shell. The cylinder body is composed of two semi-cylinder bodies. The end covers are arranged at both ends of the cylinder body. Through holes are provided on the end covers. An installation position is formed between the inner wall of the cylinder body and the corresponding end faces of the end covers. The infrared heating tube is arranged in the installation position and is fixed to the end covers at both ends respectively. The outer shell covers the outside of the cylinder body and the end covers and extends to the through holes. The outer shell includes an outer peripheral part, an inner circular part and a connecting part. The outer peripheral part covers the outside of the cylinder body and the end covers. The inner circular part covers the inner wall of the through hole. The outer peripheral part and the inner circular part are connected through the connecting part. The connecting part includes a triangular connecting part. The small end of the triangular connecting part is connected to the inner circular part, and the large end is connected to the outer peripheral part.

[0005] The beneficial effect of the utility model is that the outer peripheral part and the inner circular part of the outer shell are connected through the connecting part, and the connecting part includes a triangular connecting part, and the small end is closer to the infrared heating tube, so that the heat conduction area is very small, the heat conduction is greatly reduced, the temperature of the outer shell surface can be reduced to within 50°, and the heat loss is greatly reduced, achieving the effect of energy saving.

[0006] In some embodiments, the connecting part further includes an annular ring. The annular ring is formed by folding the two ends of the outer peripheral part towards the end face of the end cover. The large end of the triangular connecting part is connected to the outer peripheral part through the annular ring. Thus, by providing the annular ring, the outer shell can combine the cylinder body and the end cover more tightly.

[0007] In some embodiments, a first strip-shaped hole is provided on the annular ring, and there are multiple first strip-shaped holes. Thus, by providing the first strip-shaped holes, the corresponding heat conduction area on the annular ring can be increased, which is beneficial to further reducing heat transfer and lowering the temperature of the outer shell surface.

[0008] In some embodiments, second strip-shaped holes are provided at the upper and lower ends of the outer peripheral portion, the second strip-shaped holes are close to the annular ring on the corresponding side, and there are multiple second strip-shaped holes. Thus, similarly, by providing the second strip-shaped holes, heat conduction to the entire outer shell can be further reduced, which is beneficial to reducing heat loss.

[0009] In some embodiments, an installation hole is provided at the mating portion of one half cylinder and the other half cylinder, a wire groove is provided on the installation hole, and the wire groove extends to the outside of the outer shell. Thus, by providing the installation hole on the inner side, it is convenient for the built-in installation of the external probe and improves the accuracy of data acquisition.

[0010] In some embodiments, push-pull sliding plates are provided on both half cylinders, ventilation holes are provided on the side walls of the half cylinders, the push-pull sliding plates correspond to the ventilation holes, and heat insulation cotton is provided inside the push-pull sliding plates. Thus, by providing the push-pull sliding plates and the ventilation holes, when maintenance and repair are required later, by opening the push-pull sliding plates, it is convenient for the internal ventilation holes to quickly dissipate heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram of a nano-infrared energy-saving electric heating ring of the present utility model.

[0012] Figure 2 is a schematic structural diagram of a nano-infrared energy-saving electric heating ring of the present utility model in an open state. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0014] Refer to Figures 1 to 2 . A nano-infrared energy-saving electric heating ring includes a cylinder body 1, an infrared heating tube 2, end caps 3 and an outer shell 4. The cylinder body 1 is composed of two half cylinder bodies 11. The end caps 3 are provided at both ends of the cylinder body 1. Through holes 31 are provided on the end caps 3. An installation position is formed between the inner wall of the cylinder body 1 and the corresponding end faces of the end caps 3. The infrared heating tube 2 is provided in the installation position and is fixed to the end caps 3 at both ends respectively. The outer shell 4 covers the outside of the cylinder body 1 and the end caps 3 and extends to the through holes 31. The outer shell 4 includes an outer peripheral portion 41, an inner circular portion 42 and a connecting portion 43. The outer peripheral portion 41 covers the outside of the cylinder body 1 and the end caps 3. The inner circular portion 42 covers the inner wall of the through holes 31. The outer peripheral portion 41 and the inner circular portion 42 are connected by the connecting portion 43. The connecting portion 43 includes a triangular connecting portion 431. The small end of the triangular connecting portion 431 is connected to the inner circular portion 42, and the large end is connected to the outer peripheral portion 41.

[0015] Among them, the outer shell 4 is a metal outer shell. After the cylinder body 1, the end cover 3 and the infrared heating tube 2 are installed, the outer shell 4 is covered on the outside, so that the cylinder body 1 and the end cover 3 are closely combined to ensure the installation of the infrared heating tube 2; the fixing method of the infrared heating tube 2 on the end cover 3 is the same as the fixing method of the infrared heating tube in the existing technology.

[0016] The cylinder body 1 is composed of two semi-cylinder bodies 11, which can facilitate the installation of the infrared heating tube 2.

[0017] When the outer shell 4 is installed, through the inner circular part 42, it can be pressed against the inner wall of the through hole 31, and is connected to the outer peripheral part 41 through the connecting part 43; the outer peripheral part 41 is covered on the outer side wall of the cylinder body 1, and tightly presses the end cover 3 and the cylinder body 1.

[0018] The connecting part 43 further includes an annular ring 432, and the annular ring 432 is formed by folding the two ends of the outer peripheral part towards the end face of the end cover 3. The large end of the triangular connecting part 431 is connected to the outer peripheral part 41 through the annular ring 432.

[0019] Therefore, when the nano-infrared energy-saving electric heating ring is in use, part of the heat generated by the infrared heating tube 2 during operation is conducted to the inner circular part 42, and the heat on the inner circular part 42 is then conducted to the outer peripheral part 41 through the connecting part 43. Due to the triangular connecting part 431 on the connecting part 43, and the small end is connected to the inner circular part 42, therefore, the contact area between the connecting part 43 and the inner circular part 42 is small, so that the heat conduction area of the inner circular part 42 to the outside is reduced, which is conducive to reducing heat transfer, that is, reducing the heat transferred from the inner circular part 42 to the outer peripheral part 41. The temperature of the outer surface of the outer shell 4 can be controlled at about 50°, which is more than ten degrees lower than the outer surface temperature of the existing such heating rings, thus reducing heat loss and achieving an energy-saving effect.

[0020] The annular ring 432 is provided with a plurality of first strip-shaped holes 433. By providing the first strip-shaped holes 433, the contact area on both sides of the first strip-shaped holes 433 can be further reduced, thereby further reducing heat conduction to the outside.

[0021] The upper and lower ends of the outer peripheral part 41 are provided with a plurality of second strip-shaped holes 411, and the second strip-shaped holes 411 are close to the corresponding annular ring 432. Similarly, through the second strip-shaped holes 411, the heat conduction area can be further reduced. The principle is the same as that of the first strip-shaped hole, so that the heat finally conducted to the outer peripheral part 41 is reduced, which is conducive to reducing heat loss and achieving an energy-saving effect.

[0022] One of the semi-cylinders 11 is provided with a mounting hole 111 at the mating position with the other semi-cylinder 11. A wire groove 112 is provided on the mounting hole 111, and the wire groove 112 extends to the outside of the housing 4. By providing the mounting hole 111, it is convenient for internal installation such as an external temperature probe, improving the integrity and the accuracy of the probe detection data; by providing the wire groove 112, it is convenient for wiring of the wire connected to the probe and facilitates wiring.

[0023] Push-pull slides 6 are provided on both of the semi-cylinders 11. Ventilation holes 113 are provided on the side walls of the semi-cylinders 11. The push-pull slides 6 correspond to the ventilation holes 113, and heat insulation cotton is provided inside the push-pull slides 6. Among them, the installation method of the push-pull slide 6 on the cylinder 1 is the same as that of the slide in the patent application No. 201921988803.7. By pushing and pulling the push-pull slide 6, the ventilation holes 113 can be blocked or opened. When the inside of the nano-infrared energy-saving electric heating ring needs to be repaired and maintained, the push-pull slide 6 is pushed open, so that the ventilation holes 113 are opened, enabling the internal heat to convect and dissipate quickly, improving the heat dissipation efficiency, facilitating the reduction of the internal temperature, being convenient to use and operate. At the same time, by providing heat insulation cotton inside the push-pull slide 6, the heat insulation effect can be improved when the push-pull slide 6 closes the ventilation holes 113, reducing heat loss.

[0024] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the inventive concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A nano-infrared energy-saving electric heating coil, characterized in that, It includes a cylinder body (1), an infrared heating tube (2), end caps (3) and a housing (4). The cylinder body (1) is composed of two half-cylinder bodies (11). The end caps (3) are arranged at both ends of the cylinder body (1). Through holes (31) are provided on the end caps (3). An installation position is formed between the inner wall of the cylinder body (1) and the corresponding end faces of the end caps (3). The infrared heating tube (2) is arranged in the installation position and is fixed to the end caps (3) at both ends respectively. The housing (4) covers the outside of the cylinder body (1) and the end caps (3) and extends to the through holes (31). The housing (4) includes an outer peripheral part (41), an inner circular part (42) and a connecting part (43). The outer peripheral part (41) covers the outside of the cylinder body (1) and the end caps (3). The inner circular part (42) covers the inner wall of the through holes (31). The outer peripheral part (41) and the inner circular part (42) are connected by the connecting part (43). The connecting part (43) includes a triangular connecting part (431). The small end of the triangular connecting part (431) is connected to the inner circular part (42), and the large end is connected to the outer peripheral part (41).

2. The nano-infrared energy-saving electric heating coil according to claim 1, wherein, The connecting part (43) further includes an annular ring (432). The annular ring (432) is formed by folding the two ends of the outer peripheral part towards the end face of the end cap (3). The large end of the triangular connecting part (431) is connected to the outer peripheral part (41) through the annular ring (432).

3. The nano-infrared energy-saving electric heating coil according to claim 2, wherein, First strip-shaped holes (433) are provided on the annular ring (432), and there are multiple first strip-shaped holes (433).

4. The nano-infrared energy-saving electric heating coil according to claim 3, characterized in that, Second strip-shaped holes (411) are provided at the upper and lower ends of the outer peripheral part (41). The second strip-shaped holes (411) are close to the annular ring (432) on the corresponding side, and there are multiple second strip-shaped holes (411).

5. A nano-infrared energy-saving electric heating coil according to any one of claims 1 to 4, characterized in that, An installation hole (111) is provided at the mating position of one of the half-cylinder bodies (11) and the other half-cylinder body (11). A wire groove (112) is provided on the installation hole (111), and the wire groove (112) extends to the outside of the housing (4).

6. The nano-infrared energy-saving electric heating coil according to claim 5, characterized in that, Push-pull sliding plates (6) are provided on both of the half-cylinder bodies (11). Ventilation holes (113) are provided on the side walls of the half-cylinder bodies (11). The push-pull sliding plates (6) correspond to the ventilation holes (113), and heat insulation cotton is provided in the push-pull sliding plates (6).

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