Vehicle air heater with riveted radiating strip and heating pipe

Abstract

The utility model discloses a vehicle air heater with riveted radiating strips and heating pipes, which comprises a frame, a plurality of radiating strips arranged in the frame and a plurality of heating pipes arranged between every two radiating strips, and the heating pipes and the radiating strips are strip-shaped square pieces. The ends of the two sides of the heating pipes and the ends of the two sides of the heat dissipation strips are provided with corresponding turned-over edges and bosses respectively, the adjacent heating pipes and the adjacent heat dissipation strips are riveted through the turned-over edges and the bosses, the product connection stability can be improved, the production efficiency can be improved, the production cost can be reduced, and the product quality can be improved.

Description

Technical Field

[0001] This utility model relates to a vehicle air heater in which a heat dissipation strip and a heating tube are riveted together. Background Technology

[0002] In the manufacturing process of automotive air heaters, heat sink strips need to be connected to aluminum tubes to ensure the heat dissipation performance of the heater. Traditional processes often use tooling clamps combined with silicone bonding to connect the heat sink strips to the aluminum tubes.

[0003] However, this traditional structure has many drawbacks: on the one hand, because the heat sink itself has low hardness, the tooling fixture is prone to deforming the heat sink during clamping, affecting the product's appearance; on the other hand, the silicone adhesive has poor stability. In the complex operating environment of automobiles, such as frequent vibration and drastic temperature changes, the silicone is prone to aging and falling off, causing the heat sink to separate from the aluminum tube, thereby weakening the heat dissipation effect and reducing the performance of the PTC heater. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a vehicle fan heater that is less prone to product deformation during assembly and has a more stable and reliable connection between the heat sink and the heating tube.

[0005] The technical solution of this utility model is: a vehicle air heater with heat dissipation strips and heating tubes riveted together, including a frame, multiple heat dissipation strips disposed in the frame and multiple heating tubes disposed between every two heat dissipation strips. The heating tubes and heat dissipation strips are both long strip-shaped square pieces. The two ends of the heating tubes and heat dissipation strips are respectively provided with corresponding flanges and bosses. Adjacent heating tubes and heat dissipation strips are riveted together by the flanges and bosses.

[0006] Furthermore, the heating tube includes a housing and a heating element disposed within the housing, and the flange or boss is disposed on the housing.

[0007] Furthermore, the heat dissipation strip includes two side plates and fins densely arranged between the two side plates, and the flange or boss is arranged on the side plates.

[0008] Furthermore, a heat-conducting layer is provided between the heating tube and the heat dissipation strip.

[0009] Specifically, the thermally conductive layer is a thermally conductive silicone grease layer or a thermally conductive adhesive layer.

[0010] Furthermore, the heating pack includes a PTC ceramic element, electrode plates, and an insulating plate.

[0011] Furthermore, the frame includes two end caps and two side plates. The two end caps are respectively disposed at both ends of the main body formed by riveting the heating pipes and heat dissipation strips, and the two side plates are respectively disposed on both sides of the main body formed by riveting the heating pipes and heat dissipation strips.

[0012] Furthermore, the inner sides of the two end caps are respectively provided with slots corresponding to the ends of the main body, and the inner sides of the two end caps are also respectively provided with connecting parts. The outer sides of the two side plates are respectively provided with grooves corresponding to the connecting parts. The two end caps are respectively inserted into the two ends of the main body, and each connecting part is respectively inserted into the corresponding groove and fixed to the side plate by fixing bolts.

[0013] Optionally, each of the heating tubes has a flange on both sides, and each of the heat dissipation strips has a boss on both sides.

[0014] Optionally, each of the heat dissipation strips has a flange on both sides, and each of the heating tubes has a boss on both sides.

[0015] The beneficial effects of this utility model are:

[0016] Improved connection stability; the mechanical connection structure formed by riveting the heating tube and heat sink can effectively resist various external forces during vehicle operation, and avoid loosening or falling off due to factors such as vibration and temperature changes, thus ensuring the stability of heat dissipation.

[0017] Improve production efficiency; the riveting operation is relatively simple and quick, without waiting for the silicone to cure, and a large number of connection works can be completed in a short time, which greatly improves production efficiency, meets the needs of large-scale production, and this riveting process is less likely to cause product deformation.

[0018] Reduce production costs; due to increased production efficiency and output per unit time, the costs of equipment depreciation, labor, etc. allocated to each product are reduced accordingly, thus achieving a decrease in overall production costs;

[0019] Improved product quality; avoided defects caused by tooling clamping, ensuring the quality of heat sinks and heating tubes; stable connection structure makes the PTC heater dissipate heat more evenly and efficiently during operation, reducing local overheating caused by uneven heat dissipation, and improving product reliability and service life. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention;

[0021] Figure 2 This is an exploded view of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the present invention after the end cap is removed.

[0023] In the diagram: Frame 1, Heat sink 2, Heating tube 3, Flanged edge 4, Boss 5, Outer shell 6, Heating pack 7, Side plate 8, Fin 9, Ceramic element 10, Electrode plate 11, Insulating plate 12, End cap 13, Side plate 14, Slot 15, Connecting part 16, Groove 17, Fixing bolt 18. Detailed Implementation

[0024] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0025] Combination Figure 1-3 As shown, a vehicle air heater with heat dissipation strips and heating pipes riveted together includes a frame 1, multiple heat dissipation strips 2 disposed within the frame 1, and multiple heating pipes 3 disposed between every two heat dissipation strips 2. The heating pipes 3 and heat dissipation strips 2 are both long rectangular pieces. The two ends of the heating pipes 3 and heat dissipation strips 2 are respectively provided with corresponding flanges 4 and bosses 5. Adjacent heating pipes 3 and heat dissipation strips 2 are riveted together by flanges 4 and bosses 5.

[0026] The specific processing flow for the above structure is as follows:

[0027] a. Pre-preparation of heating tubes: According to the design requirements of the air heater, select aluminum alloy tubes of appropriate specifications, determine their thickness, size and hardness, and clean and pre-treat the surface of the heating tubes to remove oil, oxide layer and other impurities.

[0028] b. Heat dissipation strip preparation: According to the design requirements of the air heater, select aluminum alloy heat dissipation strips of appropriate specifications. The thickness, corrugation shape and size parameters should match the heating tube and the overall heat dissipation requirements. Clean and pre-treat the surface of the heat dissipation strips to remove oil, oxide layer and other impurities.

[0029] c. Positioning and assembly: Determine the installation position of the heat sink on the surface of the heating tube, place the heat sink in the corresponding position, and use tooling for positioning;

[0030] d. Riveting operation: Using professional riveting equipment, press down the riveting structure of the heating tube, adjust the riveting pressure (set according to the material, thickness and other factors of the heating tube and heat sink) and riveting speed and other parameters to make the riveting structure of the heating tube tightly lock the heat sink, and complete the riveting.

[0031] The beneficial effects of the above structure are: improved connection stability: the mechanical connection structure formed by riveting the heating tube 3 and the heat sink 2 can effectively resist various external forces during the operation of the car, avoid loosening or falling off the connection due to factors such as vibration and temperature changes, and ensure the stability of the heat dissipation effect;

[0032] Improved production efficiency: Riveting is a relatively simple and quick operation that does not require waiting for silicone to cure. It can complete a large number of connection tasks in a short time, which greatly improves production efficiency and meets the needs of large-scale production.

[0033] Reduced production costs: Due to increased production efficiency and output per unit time, the costs of equipment depreciation and labor allocated to each product are reduced accordingly, resulting in a decrease in overall production costs;

[0034] Improved product quality: It avoids defects caused by tooling clamping and ensures the quality of heat sink 2 and heating tube 3; the stable connection structure makes the PTC heater heat up more evenly and efficiently during operation, reduces local overheating caused by uneven heat dissipation, and improves the reliability and service life of the product.

[0035] In another embodiment, combined Figure 2 and Figure 3 As shown, the heating tube 3 includes a housing 6 and a heating element 7 disposed inside the housing 6, and the flange 4 or boss 5 is disposed on the housing 6.

[0036] In another embodiment, combined Figure 1 and Figure 2 As shown, the heat dissipation strip 2 includes two side plates 8 and fins 9 densely arranged between the two side plates 8, and the flange 4 or boss 5 is arranged on the side plate 8.

[0037] In another embodiment, a heat-conducting layer is provided between the heating tube 3 and the heat dissipation strip 2 to improve the heat exchange efficiency between the heating tube 3 and the heat dissipation strip 2.

[0038] Specifically, the thermally conductive layer is a thermally conductive silicone grease layer or a thermally conductive adhesive layer.

[0039] In another embodiment, such as Figure 2 As shown, the heating pack 7 includes a PTC ceramic element 10, an electrode sheet 11, and an insulating plate 12.

[0040] In another embodiment, combined Figure 1 and Figure 2 As shown, the frame 1 includes two end caps 13 and two side plates 14. The two end caps 13 are respectively disposed at both ends of the main body formed by riveting the heating pipes 3 and the heat dissipation strips 2. The two side plates 14 are respectively disposed on both sides of the main body formed by riveting the heating pipes 3 and the heat dissipation strips 2, so as to provide protection for the main body and improve the stability of the entire main structure.

[0041] In another embodiment, combined Figure 1 and Figure 2As shown, the inner sides of the two end caps 13 are respectively provided with slots 15 corresponding to the ends of the main body, and the inner sides of the two end caps 13 are also respectively provided with connecting parts 16. The outer sides of the two side plates 14 are respectively provided with grooves 17 corresponding to the connecting parts 16. The two end caps 13 are respectively inserted into the two ends of the main body, and each connecting part 16 is respectively inserted into the corresponding groove 17 and fixed to the side plate 14 by fixing bolts 18, so as to facilitate assembly and improve the reliability of the frame 1 structure.

[0042] Optionally, each of the heating tubes 3 has a flange 4 on both sides, and each of the heat dissipation strips 2 has a boss 5 on both sides.

[0043] Optionally, each of the heat dissipation strips 2 has a flange 4 on both sides, and each of the heating tubes 3 has a boss 5 on both sides.

Claims

1. A vehicle-mounted air heater with heat dissipation strips and heating pipes riveted together, comprising a frame (1), multiple heat dissipation strips (2) disposed within the frame (1), and multiple heating pipes (3) disposed between every two heat dissipation strips (2), characterized in that, The heating tube (3) and the heat dissipation strip (2) are both long rectangular pieces. The heating tube (3) and the heat dissipation strip (2) are respectively provided with corresponding flanges (4) and bosses (5) at both ends. Each adjacent heating tube (3) and heat dissipation strip (2) are riveted together by the flanges (4) and bosses (5).

2. The vehicle fan heater with heat dissipation strips and heating pipes riveted together as described in claim 1, characterized in that, The heating tube (3) includes a housing (6) and a heating element (7) disposed inside the housing (6), and the flange (4) or boss (5) is disposed on the housing (6).

3. A vehicle-mounted fan heater with a heat dissipation strip and a heating pipe riveted together as described in claim 2, characterized in that, The heat dissipation strip (2) includes two side plates (8) and fins (9) densely arranged between the two side plates (8), and the flange (4) or boss (5) is arranged on the side plate (8).

4. A vehicle-mounted fan heater with a heat dissipation strip and a heating pipe riveted together as described in claim 3, characterized in that, A heat-conducting layer is also provided between the heating tube (3) and the heat dissipation strip (2).

5. A vehicle-mounted fan heater with a heat dissipation strip and a heating pipe riveted together as described in claim 4, characterized in that, The thermally conductive layer is a thermally conductive silicone grease layer or a thermally conductive adhesive layer.

6. A vehicle-mounted fan heater with a heat dissipation strip and a heating pipe riveted together as described in claim 5, characterized in that, The heating pack (7) includes a PTC ceramic element (10), an electrode sheet (11), and an insulating plate (12).

7. A vehicle-mounted fan heater with a heat dissipation strip and a heating pipe riveted together as described in claim 6, characterized in that, The frame (1) includes two end caps (13) and two side plates (14). The two end caps (13) are respectively disposed at both ends of the main body formed by riveting each heating pipe (3) and heat dissipation strip (2), and the two side plates (14) are respectively disposed on both sides of the main body formed by riveting each heating pipe (3) and heat dissipation strip (2).

8. A vehicle-mounted fan heater with a heat dissipation strip and a heating pipe riveted together as described in claim 7, characterized in that, The inner sides of the two end caps (13) are respectively provided with slots (15) corresponding to the ends of the main body. The inner sides of the two end caps (13) are also respectively provided with connecting parts (16). The outer sides of the two side plates (14) are respectively provided with grooves (17) corresponding to the connecting parts (16). The two end caps (13) are respectively inserted into the two ends of the main body. Each connecting part (16) is respectively inserted into the corresponding groove (17) and fixed to the side plate (14) by fixing bolts (18).

9. A vehicle-mounted fan heater with a heat dissipation strip and a heating pipe riveted together as described in claim 8, characterized in that, Each heating tube (3) has a flange (4) on both sides, and each heat dissipation strip (2) has a boss (5) on both sides.

10. A vehicle-mounted fan heater with a heat dissipation strip and a heating pipe riveted together as described in claim 8, characterized in that, Each heat dissipation strip (2) has a flange (4) on both sides, and each heating tube (3) has a boss (5) on both sides.

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