Double-tube thick film heating core with spiral radiating fin

Abstract

The utility model discloses a double -tubed thick film heating core body with spiral radiating fin, including base and the two thick film heating pipe of connecting in the base front end, is equipped with a spiral column respectively in two thick film heating pipe, and the thick film heating pipe and corresponding spiral column constitute the water chamber, and two thick film heating pipe is connected as a concave character shape channel through the base, and the cooling liquid respectively along the spiral direction of spiral column passes two thick film heating pipe inside, the utility model discloses simple structure, owing to the spiral structure in its thick film heating pipe, the heat dissipation effect is better, has improved the safety factor greatly, and again owing to adopt double -tubed structure, and the liquid inlet and outlet pipe position limited small, and the layout in whole car is convenient.

Description

Technical Field

[0001] This utility model relates to a double-tube thick film heating core with spiral heat dissipation fins. Background Technology

[0002] Currently, there are roughly three types of common tubular heating cores: ceramic tubes, where the heating core is a single tube made of ceramic material. During heating, ceramic tubular heating cores are prone to bursting due to unstable temperature; stainless steel tubular cores are coated with a thick film, which generates heat. However, the coolant flow rate inside the tube is uneven, leading to localized hot spots, uneven heat dissipation, and a low safety factor; and single-tube heating cores, where the entire heating core consists of only one tube with coolant entering on one side and exiting on the other. This design severely limits the placement of the inlet and outlet pipes, making it suitable only for large spaces, difficult to integrate into vehicle layouts, and resulting in low utilization. Overall, all three types of heating cores have certain drawbacks. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a more reliable and conveniently deployable dual-tube thick film heating core with spiral heat dissipation fins in a vehicle.

[0004] The technical solution of this utility model is: a dual-tube thick film heating core with spiral heat dissipation fins, including a base and two thick film heating tubes connected to the front end of the base. Each of the two thick film heating tubes is provided with a spiral column. The thick film heating tubes and the corresponding spiral columns form a water chamber. The two thick film heating tubes are connected by the base to form a U-shaped channel. Coolant passes through the interior of the two thick film heating tubes along the spiral direction of the spiral column.

[0005] Furthermore, the front ends of the two thick-film heating tubes are respectively connected to an inlet pipe and an outlet pipe.

[0006] Specifically, the spiral column consists of a hollow column and spiral heat dissipation fins disposed on the outside of the hollow column.

[0007] Specifically, the outer side of the spiral heat dissipation fins on the spiral column abuts against the inner wall of the thick film heating tube.

[0008] Furthermore, it also includes a bracket, on which the front ends of the two thick film heating tubes are respectively fixed.

[0009] Specifically, the two spiral columns are respectively fitted with the two positioning columns with a clearance, and one end of each positioning column is fixed inside the base.

[0010] Specifically, the base has an interface on each of its two front ends, one end of each of the two thick film heating tubes is inserted into the corresponding interface and welded to the base, and one end of each of the two positioning posts is welded to the base.

[0011] Furthermore, electrodes are respectively provided on the outer side of the two thick-film heating tubes.

[0012] Specifically, the thick film heating tube consists of a stainless steel tube and a thick film layer disposed on the outside of the stainless steel tube.

[0013] The beneficial effects of this utility model are: the double-tube thick film heating core with spiral heat dissipation fins in this utility model has a better heat dissipation effect due to its spiral structure, which greatly improves the safety factor. Due to the adoption of a dual-tube structure, the location of the inlet and outlet liquid pipes for the entire heater is less restricted, making it convenient for layout in the vehicle. In addition, compared with traditional PTC heating cores, dual-tube thick-film heating cores with spiral heat dissipation fins are lower in cost, simpler in production and assembly processes, and easier to control process quality; they also occupy less space, allowing more space for other vehicle components. Finally, this utility model has a simpler structure, which facilitates platform-based and integrated production. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention; Figure 2 This is a side view of the structure of this utility model; Figure 3 yes Figure 2 A cross-sectional view along the AA direction.

[0015] In the diagram: Electrode 1, Base 2, Thick film heating tube 3, Water chamber 4, Spiral column 5, Positioning column 6, Support 7, Inlet pipe 8, Outlet pipe 9. Detailed Implementation

[0016] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0017] Combination Figure 1-3 As shown, a dual-tube thick-film heating core with spiral heat dissipation fins includes a base 2 and two thick-film heating tubes 3 connected to the front end of the base 2. Each of the two thick-film heating tubes 3 is provided with a spiral column 5. The thick-film heating tubes 3 and the corresponding spiral columns 5 form a water chamber 4. The two thick-film heating tubes 3 are connected by the base 2 to form a U-shaped channel. Coolant passes through the interior of the two thick-film heating tubes 3 along the spiral direction of the spiral columns 5.

[0018] In another embodiment, combined Figure 1-3 As shown, the front ends of the two thick film heating tubes 3 are respectively connected to an inlet pipe 8 and an outlet pipe 9.

[0019] In another embodiment, such as Figure 3As shown, the spiral column 5 consists of a hollow column and spiral heat dissipation fins disposed on the outside of the hollow column.

[0020] In another embodiment, such as Figure 3 As shown, the outer side of the spiral heat dissipation fins on the spiral column 5 abuts against the inner wall of the thick film heating tube 3, so that a spiral channel is formed inside the spiral column 5.

[0021] In another embodiment, such as Figure 1 As shown, it also includes a bracket 7, and the front ends of the two thick film heating tubes 3 are respectively fixed on the bracket 7 to improve the stability of the entire heating core structure.

[0022] In another embodiment, such as Figure 3 As shown, the two spiral columns 5 are respectively fitted with the two positioning columns 6 with a clearance, and one end of each positioning column 6 is fixed in the base 2 to ensure the reliability of the spiral column 5.

[0023] Specifically, the base 2 has an interface on each of its two front ends, one end of each of the two thick film heating tubes 3 is inserted into the corresponding interface and welded to the base 2, and one end of each of the two positioning posts 6 is welded to the base 2.

[0024] In another embodiment, such as Figure 1 As shown, electrodes 1 are respectively provided on the outer side of the two thick film heating tubes 3.

[0025] In another embodiment, the thick film heating tube 3 is composed of a stainless steel tube and a thick film layer disposed on the outside of the stainless steel tube.

[0026] The working principle of the above structure is as follows: when the thick film coated on the outer surface of the thick film heating tube 3 is energized, the coolant enters the thick film heating tube 3 through the inlet pipe 8 and flows in the spiral direction of the spiral column 5. It flows inside the thick film heating tube 3 (at this time, the coolant flows evenly through the inside of the thick film heating tube 3 to ensure uniform heat dissipation). After passing through the base 2, it passes through another thick film heating tube 3, which carries away the heat of the thick film. The temperature of the coolant rises, and the coolant flows out from the outlet pipe 9.

[0027] The beneficial effects of the above structure are: the double-tube thick film heating core with spiral heat dissipation fins has better heat dissipation due to the spiral structure, which greatly improves the safety factor; due to the use of double tube structure, the position of the inlet and outlet liquid pipes 9 is less restricted, which facilitates the layout in the whole vehicle.

Claims

1. A dual-tube thick-film heating core with spiral heat dissipation fins, characterized in that, Includes a base (2) and two thick film heating tubes (3) connected to the front end of the base (2). Each of the two thick film heating tubes (3) is provided with a spiral column (5). The thick film heating tubes (3) and the corresponding spiral columns (5) form a water chamber (4). The two thick film heating tubes (3) are connected by the base (2) to form a U-shaped channel. The coolant passes through the interior of the two thick film heating tubes (3) along the spiral direction of the spiral column (5).

2. The dual-tube thick-film heating core with spiral heat dissipation fins as described in claim 1, characterized in that, The front ends of the two thick film heating tubes (3) are respectively connected to an inlet pipe (8) and an outlet pipe (9).

3. The dual-tube thick-film heating core with spiral heat dissipation fins as described in claim 2, characterized in that, The spiral column (5) consists of a hollow column and spiral heat dissipation fins arranged on the outside of the hollow column.

4. A dual-tube thick-film heating core with spiral heat dissipation fins as described in claim 3, characterized in that, The spiral heat dissipation fins on the spiral column (5) abut against the inner wall of the thick film heating tube (3) on their outer side.

5. A dual-tube thick-film heating core with spiral heat dissipation fins as described in claim 4, characterized in that, It also includes a bracket (7), on which the front ends of the two thick film heating tubes (3) are respectively fixed.

6. A dual-tube thick-film heating core with spiral heat dissipation fins as described in claim 5, characterized in that, The two spiral columns (5) are respectively fitted with the two positioning columns (6) with a clearance, and one end of the two positioning columns (6) is respectively fixed in the base (2).

7. A dual-tube thick-film heating core with spiral heat dissipation fins as described in claim 6, characterized in that, The base (2) has an interface on each of its two front ends. One end of each of the two thick film heating tubes (3) is inserted into the corresponding interface and welded to the base (2). One end of each of the two positioning columns (6) is welded to the base (2).

8. A dual-tube thick-film heating core with spiral heat dissipation fins as described in claim 7, characterized in that, Electrodes (1) are also provided on the outer side of the two thick film heating tubes (3).

9. A dual-tube thick-film heating core with spiral heat dissipation fins as described in claim 8, characterized in that, The thick film heating tube (3) consists of a stainless steel tube and a thick film layer disposed on the outside of the stainless steel tube.

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