Air duct heating device

Abstract

The utility model relates to the technical field of air duct heating rods, in particular to an air duct heating device which comprises an air duct frame, a heating pipe connecting piece is installed in the air duct frame, a temperature conduction mechanism facilitating improvement of air heating efficiency is arranged in the air duct frame, and the temperature conduction mechanism comprises a fixing base, a heat conduction copper pipe, heat conduction fins and a fairing. The fixing base is fixedly connected to the bottom of an inner cavity of the air duct frame, the heat conduction copper pipe is fixedly connected to the upper surface of the fixing base, and the heat conduction fins are fixedly connected to the heat conduction copper pipe. According to the air duct heating device, a quick plug connector lug is installed at the top of a heating pipe connecting piece fixedly connected in a mounting hole, and a heating rod is installed at the bottom of the heating pipe connecting piece, so that air flowing in an air duct can be heated conveniently, and a heat conduction copper pipe and heat conduction fins are installed on a fixing base fixedly connected with the bottom of an inner cavity of an air duct frame; and fairings are fixedly connected to the air inlet and outlet sides of the heat conduction fins, so that the air heating efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of air duct heating rod technology, specifically an air duct heating device. Background Technology

[0002] A duct heating rod is a device used to heat the air in a duct. It primarily achieves its heating function through resistance wire heating. When an electric current passes through the resistance wire, it generates heat, which is transferred to the air flowing through the duct through thermal radiation and convection, thereby raising the air temperature. The components of the duct heating rod are typically mounted within a suitable frame to ensure its stability and safety.

[0003] The aforementioned device lacks a structure for auxiliary heating of the air duct with a heating rod. As a result, the heating rod in the existing air duct has a small size and a limited heat radiation area, so the air in the air duct is not heated by heat radiation when passing through the heating rod. Based on the shortcomings of the existing technology, this utility model designs an air duct heating device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a duct heating device that has the advantage of duct heating rod-assisted heating.

[0005] This utility model provides the following technical solution: a duct heating device, including a duct frame, a heating pipe connector installed inside the duct frame, and a temperature conducting mechanism provided inside the duct frame to improve air heating efficiency;

[0006] The temperature conduction mechanism includes a fixed base, a heat-conducting copper pipe, heat-conducting fins, and a rectifier. The fixed base is fixedly connected to the bottom of the inner cavity of the air duct frame, the heat-conducting copper pipe is fixedly connected to the upper surface of the fixed base, the heat-conducting fins are fixedly connected to the heat-conducting copper pipe, and the rectifier is fixedly connected to the inside of the fixed base.

[0007] As a preferred technical solution of this utility model, a top cover is fixedly connected to the upper surface of the air duct frame, side baffles are fixedly connected to both ends of the top cover, a junction box is fixedly installed on the air duct frame, reinforcing plates are fixedly connected to the four corners of the inner wall of the air duct frame, and an installation hole is opened through the top of the air duct frame.

[0008] As a preferred technical solution of this utility model, a quick-connect connector is fixedly connected to the top end of the heating tube connector, a corrugated stainless steel outer tube is fixedly connected to the bottom end of the heating tube connector, a stainless steel inner tube is fixedly connected to the bottom end of the heating tube connector, a spiral heating wire is fixedly connected to the bottom end of the heating tube connector, copper powder is disposed between the corrugated stainless steel outer tube and the stainless steel inner tube, and magnesium oxide powder is disposed between the stainless steel inner tube and the spiral heating wire.

[0009] As a preferred embodiment of this utility model, the top end of the heat-conducting copper tube is located below the mounting hole, and the rectifier is located on the left and right sides of the heat-conducting fins.

[0010] As a preferred technical solution of this utility model, the corrugated stainless steel outer tube, copper powder, stainless steel inner tube, magnesium oxide powder and spiral heating wire constitute a heating rod. The heating rod is inserted into the interior of the heat-conducting copper tube, and the bottom end of the heating rod is fixedly inserted into the fixing base.

[0011] As a preferred embodiment of this utility model, the heating tube connector is fixedly inserted into the mounting hole.

[0012] As a preferred embodiment of this utility model, the side baffle is fixedly connected to the upper surface of the air duct frame.

[0013] As a preferred embodiment of this utility model, the top cover is disposed above the heating tube connector and the quick-connect connector.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This air duct heating device connects a wire to a quick-connect connector and then externally powers a heating rod to generate heat. The heated rod then transfers heat to a heat-conducting copper pipe, which in turn evenly distributes heat to the heat-conducting fins. At this point, a fan is activated to circulate air within the air duct. The air flows through the holes in the rectifier and, after rectification, enters the air duct frame. It then passes through the gaps between multiple heat-conducting fins and is rapidly heated by thermal radiation. Due to the large number and area of ​​the heat-conducting fins, the heat dissipation rate of the flowing air is effectively improved. The heated air is then discharged through the holes in the rectifier on the other side. This device facilitates the use of auxiliary heating rods to heat the air. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of the air duct heating system of this utility model;

[0018] Figure 3 This is a schematic diagram of the main structure of the air duct of this utility model;

[0019] Figure 4 This is a schematic diagram of the heating rod structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the exploded structure of the temperature conduction mechanism of this utility model;

[0021] Figure 6This is a schematic diagram of the internal cross-sectional structure of the temperature-conducting mechanism of this utility model.

[0022] In the diagram: 1. Air duct frame; 101. Top cover; 102. Side baffle; 103. Junction box; 104. Reinforcing plate; 105. Mounting hole; 2. Heating tube connector; 201. Quick-connect connector; 202. Corrugated stainless steel outer tube; 203. Copper powder; 204. Stainless steel inner tube; 205. Magnesium oxide powder; 206. Spiral heating wire; 3. Temperature conduction mechanism; 301. Fixing base; 302. Heat-conducting copper tube; 303. Heat-conducting fins; 304. Rectifier. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-6 A duct heating device includes a duct frame 1, a heating pipe connector 2 installed inside the duct frame 1, a temperature conducting mechanism 3 provided inside the duct frame 1 to improve air heating efficiency, a top cover 101 fixedly connected to the upper surface of the duct frame 1, side baffles 102 fixedly connected to both ends of the top cover 101, a junction box 103 fixedly installed on the duct frame 1, reinforcing plates 104 fixedly connected to the four corners of the inner wall of the duct frame 1, a mounting hole 105 through the top of the duct frame 1, the side baffles 102 fixedly connected to the upper surface of the duct frame 1, and the top cover 101 covering the heating pipe connector 2 and the quick-connect connector 201.

[0025] Please see Figure 5-6 The temperature conducting mechanism 3 includes a fixed base 301, a heat-conducting copper pipe 302, heat-conducting fins 303, and a rectifier 304. The fixed base 301 is fixedly connected to the bottom of the inner cavity of the air duct frame 1. The heat-conducting copper pipe 302 is fixedly connected to the upper surface of the fixed base 301. The heat-conducting fins 303 are fixedly connected to the heat-conducting copper pipe 302. The rectifier 304 is fixedly connected to the inside of the fixed base 301. The top end of the heat-conducting copper pipe 302 is located below the mounting hole 105. The rectifier 304 is located on the left and right sides of the heat-conducting fins 303.

[0026] By setting a fixing base 301 and a heat-conducting copper tube 302, the heating rod can be fixed and inserted into a confined space after being bent. The heat-conducting copper tube 302 can straighten the heating rod. By setting heat-conducting fins 303, the area on which the flowing air can be radiated by heat can be increased. By setting a rectifier 304, the flowing air can pass evenly through the gaps between the multiple heat-conducting fins 303 and form turbulence after passing through the rectifier 304 to improve the heating effect.

[0027] Please see Figure 4 The top end of the heating tube connector 2 is fixedly connected to a quick-connect connector 201, the bottom end of the heating tube connector 2 is fixedly connected to a corrugated stainless steel outer tube 202, the bottom end of the heating tube connector 2 is fixedly connected to a stainless steel inner tube 204, and the bottom end of the heating tube connector 2 is fixedly connected to a spiral heating wire 206. Copper powder 203 is placed between the corrugated stainless steel outer tube 202 and the stainless steel inner tube 204, and magnesium oxide powder 205 is placed between the stainless steel inner tube 204 and the spiral heating wire 206. The corrugated stainless steel outer tube 202, copper powder 203, stainless steel inner tube 204, magnesium oxide powder 205 and spiral heating wire 206 constitute a heating rod. The heating rod is inserted into the heat-conducting copper tube 302, the bottom end of the heating rod is fixedly inserted into the fixing seat 301, and the heating tube connector 2 is fixedly inserted into the mounting hole 105.

[0028] By setting up the heating tube connector 2, quick-connect connector 201 and spiral heating wire 206, the spiral heating wire 206 can heat up the air by radiating heat after being connected to electricity. By setting up the corrugated stainless steel outer tube 202, copper powder 203, stainless steel inner tube 204 and magnesium oxide powder 205, the heat of magnesium oxide powder 205 can be quickly discharged, while the assembled heating rod has bendability.

[0029] Working principle: When a duct heating device is used, in the initial state, the mounting hole 105 is first opened on the top of the duct frame 1. The top of the heating tube connector 2, which is fixedly connected in the mounting hole 105, is equipped with a quick-connect connector 201. The bottom of the heating tube connector 2 is equipped with a heating rod composed of a corrugated stainless steel outer tube 202, copper powder 203, stainless steel inner tube 204, magnesium oxide powder 205 and spiral heating wire 206, so as to heat up the air flowing in the duct. The heat-conducting copper tube 302 and heat-conducting fins 303 are installed on the fixed seat 301 fixedly connected to the bottom of the inner cavity of the duct frame 1. The rectifier 304 is fixedly connected to both sides of the air inlet and outlet of the heat-conducting fins 303 to improve the air heating efficiency.

[0030] When an auxiliary heating rod is needed to heat the air, first connect the wire to the quick-connect connector 201, then power on the external heating rod to control its heating. The heated heating rod will transfer heat to the heat-conducting copper pipe 302, which will then evenly transfer heat to the heat-conducting fins 303. At this time, start the fan to make the air in the duct flow. The flowing air passes through the holes of the rectifier 304, is rectified, enters the duct frame 1, and passes through the gaps between the multiple heat-conducting fins 303, where it is heated rapidly by heat radiation. Since there are many heat-conducting fins 303 and their area is large, the heat dissipation speed of the flowing air can be effectively improved. The heated air can be discharged from the holes of the rectifier 304 on the other side. This device facilitates the use of an auxiliary heating rod to heat the air.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A duct heating device, comprising a duct frame (1), characterized in that: The air duct frame (1) is equipped with a heating pipe connector (2), and the air duct frame (1) is equipped with a temperature conduction mechanism (3) to improve the air heating efficiency. The temperature conducting mechanism (3) includes a fixed base (301), a heat-conducting copper pipe (302), heat-conducting fins (303), and a shroud (304). The fixed base (301) is fixedly connected to the bottom of the inner cavity of the air duct frame (1). The heat-conducting copper pipe (302) is fixedly connected to the upper surface of the fixed base (301). The heat-conducting fins (303) are fixedly connected to the heat-conducting copper pipe (302). The shroud (304) is fixedly connected to the inside of the fixed base (301).

2. The air duct heating device according to claim 1, characterized in that: A top cover (101) is fixedly connected to the upper surface of the air duct frame (1), and side baffles (102) are fixedly connected to both ends of the top cover (101). A junction box (103) is fixedly installed on the air duct frame (1), and reinforcing plates (104) are fixedly connected to the four corners of the inner wall of the air duct frame (1). An installation hole (105) is opened through the top of the air duct frame (1).

3. The air duct heating device according to claim 1, characterized in that: The top end of the heating tube connector (2) is fixedly connected to a quick-connect connector (201), the bottom end of the heating tube connector (2) is fixedly connected to a corrugated stainless steel outer tube (202), the bottom end of the heating tube connector (2) is fixedly connected to a stainless steel inner tube (204), the bottom end of the heating tube connector (2) is fixedly connected to a spiral heating wire (206), copper powder (203) is provided between the corrugated stainless steel outer tube (202) and the stainless steel inner tube (204), and magnesium oxide powder (205) is provided between the stainless steel inner tube (204) and the spiral heating wire (206).

4. The air duct heating device according to claim 1, characterized in that: The top end of the heat-conducting copper tube (302) is located below the mounting hole (105), and the shroud (304) is located on the left and right sides of the heat-conducting fins (303).

5. The air duct heating device according to claim 3, characterized in that: The corrugated stainless steel outer tube (202), copper powder (203), stainless steel inner tube (204), magnesium oxide powder (205) and spiral heating wire (206) form a heating rod. The heating rod is inserted into the heat-conducting copper tube (302), and the bottom end of the heating rod is fixedly inserted into the fixing seat (301).

6. The air duct heating device according to claim 3, characterized in that: The heating tube connector (2) is fixedly inserted into the mounting hole (105).

7. The air duct heating device according to claim 2, characterized in that: The side baffle (102) is fixedly connected to the upper surface of the air duct frame (1).

8. The air duct heating device according to claim 2, characterized in that: The top cover (101) is disposed above the heating tube connector (2) and the quick-connect connector (201).

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