Double-system sealing structure of water tank

Abstract

The utility model discloses a water tank dual-system sealing structure, which comprises a water chamber, a main plate and two sealing gaskets, the main plate is provided with a plurality of positioning holes for inserting radiating pipes, the water chamber is connected to the main plate, the sealing gaskets are in a closed-loop shape, the number of the sealing gaskets is two, the two sealing gaskets are clamped between the water chamber and the main plate, and the main plate is provided with a plurality of positioning holes for inserting radiating pipes. A cooling area is formed at the position in each of the two sealing gaskets, and a water separation part is arranged between the two cooling areas; a water-proof convex part protruding towards the water chamber is arranged at the position, corresponding to the water-proof position, of the water chamber, a water-proof concave part matched with the water-proof convex part is arranged on the side, close to the main plate, of the water chamber, the sealing gasket comprises a horizontal sealing section and a convex sealing section, and the convex sealing section is clamped between the water-proof convex part and the water-proof concave part. According to the utility model, the sealing performance of the water-resisting part of the double systems of the water tank can be effectively ensured, streaming in the water tank is avoided, and a good heat dissipation effect is ensured.

Description

Technical Field

[0001] This utility model relates to the field of water tank heat dissipation technology, and in particular to a dual-system sealing structure for water tanks. Background Technology

[0002] The automotive engine radiator, also known as the engine water tank, is an indispensable component in the cooling system of a water-cooled automotive engine, responsible for cooling the coolant in the engine. With the rapid development of the automotive industry, some engine water tanks have boil-over pressures reaching up to 2.0 kPa. Current automotive radiator water tanks use welding to connect the main plate and the water chamber, and a sealing ring is sandwiched between the main plate and the water chamber to ensure a tight seal.

[0003] Some products on the market now require a water tank to serve two systems, such as one half for water cooling and the other half for oil cooling. The common practice is to set up a water-proof structure to separate the two parts of the water tank. However, since existing motherboards are usually flat, the water-proof part of the water tank is not well sealed, and micro-flow often occurs inside the water tank, affecting the heat dissipation effect. Utility Model Content

[0004] The purpose of this utility model is to provide a dual-system sealing structure for a water tank. This utility model can effectively ensure the sealing of the water-proof part of the dual-system water tank, prevent crossflow inside the water tank, and ensure good heat dissipation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dual-system sealing structure for a water tank, including a water chamber, a main board, and sealing gaskets. The main board has multiple positioning holes for inserting heat pipes. The water chamber is connected to the main board. The sealing gaskets are in a closed-loop shape. There are two sealing gaskets sandwiched between the water chamber and the main board. Each of the two sealing gaskets forms a cooling zone, and a water-proof section is provided between the two cooling zones. A water-proof protrusion is provided at the position corresponding to the water-proof section, protruding towards the water chamber. The side of the water chamber near the main board has a water-proof recess that matches the water-proof protrusion. The sealing gasket includes a horizontal sealing section and a raised sealing section, with the raised sealing section sandwiched between the water-proof protrusion and the water-proof recess.

[0006] By adopting the above technical solution, a concave-convex sealing structure is set at the water-proof junction between the main board and the water chamber. Specifically, a water-proof protrusion is set at the corresponding position of the main board, and a water-proof concave portion is set at the corresponding position of the water chamber. The sealing gasket is set as a raised sealing section at the corresponding position of the water-proof junction. This raised sealing section is sandwiched between the water-proof protrusion and the water-proof concave portion. This not only increases the travel distance required for the medium to pass through the water-proof junction, but also the concave-convex sealing structure has the characteristics of high fit and high fit stress, which can significantly improve the sealing performance of the water-proof junction, prevent crossflow inside the water tank, and ensure good heat dissipation.

[0007] The present invention is further configured such that the cross-section of the water-proof protrusion is an isosceles trapezoid, a cone, or a circular arc.

[0008] By adopting the above technical solutions, various ways of setting the water-proof protrusion are provided, which enhances the diversity of the product and enables it to adapt to different water chamber structures.

[0009] The present invention is further configured such that the water-proof protrusion includes a horizontal plate located in the middle and inclined plates symmetrically arranged on both sides of the horizontal plate, and the included angle between the two inclined plates is 120 to 135°.

[0010] By adopting the above technical solution, the specific setting of the cross section of the waterproof protrusion is an isosceles trapezoid, which is not only easy to process, but also helps to improve the sealing performance of the waterproof part.

[0011] The present invention is further configured such that a reinforcing bend is provided at the outer edge of the motherboard, and an annular sealing groove is provided on the reinforcing bend, and the horizontal sealing section of the sealing gasket is embedded in the annular sealing groove.

[0012] By adopting the above technical solution, the horizontal sealing section of the gasket is embedded in the annular sealing groove, which not only plays a positioning role, but also deforms after being squeezed, making it fit more tightly with the inner wall of the annular sealing groove, effectively blocking the passage of the medium and achieving a good water-proof effect.

[0013] The present invention is further configured such that the cross section of the reinforcing bend is L-shaped, U-shaped, or C-shaped.

[0014] By adopting the above technical solutions, various bending settings are enhanced, increasing product diversity and enabling it to adapt to different water chamber structures.

[0015] The present invention is further configured such that a reinforcing rib is provided between every two adjacent positioning holes on the part corresponding to the cooling area on the motherboard, and no reinforcing rib is provided on the part corresponding to the water-proof area on the motherboard.

[0016] By adopting the above technical solutions, the overall structural strength of the motherboard can be improved, making it less prone to bending and extending its service life.

[0017] The present invention is further configured such that the outer contour of the horizontal sealing section of the sealing gasket is a shape of four arcs connected end to end, and the raised sealing section of the sealing gasket is a rectangular shape.

[0018] By adopting the above technical solution, the multi-protrusion design of the horizontal sealing section of the sealing gasket can be matched with different groove shapes to ensure good sealing performance. The protruding sealing section of the sealing gasket is rectangular in shape, which can better fit the water-proof plane and achieve a good sealing effect. Attached Figure Description

[0019] Figure 1 This is an exploded view of the entire utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the motherboard of this utility model;

[0021] Figure 3 for Figure 1 AA section view;

[0022] Figure 4 This is a schematic diagram of the mating structure between the main board and the sealing gasket of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the sealing gasket of this utility model;

[0024] Figure 6 for Figure 5 BB section view;

[0025] Figure 7 for Figure 5 CC section view;

[0026] Figure 8 for Figure 6 DD sectional view.

[0027] In the diagram: 1. Water chamber; 2. Main board; 3. Sealing gasket; 4. Positioning hole; 5. Cooling zone; 6. Waterproof section; 7. Waterproof protrusion; 8. Waterproof recess; 9. Horizontal sealing section; 10. Raised sealing section; 11. Horizontal plate; 12. Inclined plate; 13. Reinforcing bend; 14. Annular sealing groove; 15. Reinforcing rib. Detailed Implementation

[0028] 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.

[0029] Example: As attached Figures 1-8The dual-system sealing structure of the water tank shown includes a water chamber 1, a main board 2, and sealing gaskets 3. The main board 2 has multiple positioning holes 4 for inserting heat pipes. The water chamber 1 is connected to the main board 2. The sealing gaskets 3 are in a closed-loop shape. There are two sealing gaskets 3, and the two sealing gaskets 3 are sandwiched between the water chamber 1 and the main board 2. A cooling zone 5 is formed in the position of the two sealing gaskets 3, and a water-proof part 6 is provided between the two cooling zones 5. The main board 2 has a water-proof protrusion 7 that protrudes towards the water chamber 1 at the position corresponding to the water-proof part 6. The side of the water chamber 1 near the main board 2 has a water-proof recess 8 that matches the water-proof protrusion 7. The sealing gasket 3 includes a horizontal sealing section 9 and a raised sealing section 10. The raised sealing section 10 is sandwiched between the water-proof protrusion 7 and the water-proof recess 8. A concave-convex sealing structure is provided at the water-blocking point 6 between the main board 2 and the water chamber 1. Specifically, a water-blocking protrusion 7 is provided at the corresponding position of the main board 2, and a water-blocking recess 8 is provided at the corresponding position of the water chamber 1. The sealing gasket 3 is provided as a raised sealing section 10 at the corresponding position of the water-blocking point 6. The raised sealing section 10 is sandwiched between the water-blocking protrusion 7 and the water-blocking recess 8. This not only increases the travel distance required for the medium to pass through the water-blocking point 6, but also the concave-convex sealing structure has the characteristics of high fit and high fit stress, which can significantly improve the sealing performance of the water-blocking point 6, prevent crossflow inside the water tank, and ensure good heat dissipation.

[0030] The cross-section of the water-proof protrusion 7 is an isosceles trapezoid, cone, or arc shape, and the shape of the raised sealing section 10 matches that of the water-proof protrusion 7. This variety of arrangements for the water-proof protrusion 7 enhances product versatility and allows it to adapt to different water chamber 1 structures.

[0031] As attached Figure 3 As shown, the water-proof protrusion 7 includes a horizontal plate 11 located in the middle and inclined plates 12 symmetrically arranged on both sides of the horizontal plate 11. The included angle between the two inclined plates 12 is 120° to 135°, and 123° is used in this embodiment. This is a specific arrangement in which the cross-section of the water-proof protrusion 7 is an isosceles trapezoid, which is not only convenient to process, but also helps to improve the sealing performance of the water-proof part 6.

[0032] As attached Figure 3 and attached Figure 4 As shown, the outer edge of the motherboard 2 is provided with a reinforcing bend 13, and the reinforcing bend 13 is provided with an annular sealing groove 14. The horizontal sealing section 9 of the sealing gasket 3 is embedded in the annular sealing groove 14. The horizontal sealing section 9 of the sealing gasket 3 is embedded in the annular sealing groove 14, which not only has a positioning effect, but also deforms when the horizontal sealing section 9 of the sealing gasket 3 is squeezed, making it fit more tightly with the inner wall of the annular sealing groove 14, which can effectively block the passage of the medium and achieve a good water-proof effect.

[0033] The cross-section of the reinforcing bend 13 can be L-shaped, U-shaped, or C-shaped; in this embodiment, an L-shaped bend is used. This provides multiple configuration options for the reinforcing bend 13, enhancing product versatility and enabling it to adapt to different water chamber 1 structures.

[0034] As attached Figure 2 As shown, a reinforcing rib 15 is provided between every two adjacent positioning holes 4 on the motherboard 2 corresponding to the cooling area 5. The area on the motherboard 2 corresponding to the water-proof area 6 does not have reinforcing ribs 15, meaning the surface is flat. This design improves the overall structural strength of the motherboard 2, making it less prone to bending and extending its service life.

[0035] As attached Figures 5-8 As shown, the outer contour of the horizontal sealing section 9 of the sealing gasket 3 is four arcs connected end to end, and the raised sealing section 10 of the sealing gasket 3 is rectangular. The multi-protrusion design of the horizontal sealing section 9 of the sealing gasket 3 can be matched with different groove shapes to ensure good sealing performance. The rectangular shape of the raised sealing section 10 of the sealing gasket 3 can better fit the plane of the water-proof part 6, achieving a good sealing effect.

Claims

1. A dual-system sealed structure for a water tank, comprising a water chamber (1), a main board (2), and sealing gaskets (3), wherein the main board (2) is provided with multiple positioning holes (4) for inserting heat dissipation pipes, the water chamber (1) is connected to the main board (2), the sealing gaskets (3) are in a closed-loop shape, there are two sealing gaskets (3), and the two sealing gaskets (3) are sandwiched between the water chamber (1) and the main board (2), and a cooling zone (5) is formed within the two sealing gaskets (3), and a water-proof space (6) is provided between the two cooling zones (5); characterized in that: The main board (2) has a water-proof protrusion (7) that protrudes towards the water chamber (1) at the position corresponding to the water-proof part (6). The water chamber (1) has a water-proof recess (8) that is adapted to the water-proof protrusion (7) on the side close to the main board (2). The sealing gasket (3) includes a horizontal sealing section (9) and a raised sealing section (10). The raised sealing section (10) is sandwiched between the water-proof protrusion (7) and the water-proof recess (8).

2. The dual-system sealing structure of the water tank according to claim 1, characterized in that: The cross-section of the water-proof protrusion (7) is an isosceles trapezoid, cone, or arc shape.

3. The dual-system sealing structure of the water tank according to claim 1, characterized in that: The water-proof protrusion (7) includes a horizontal plate (11) located in the middle and inclined plates (12) symmetrically arranged on both sides of the horizontal plate (11), with the included angle between the two inclined plates (12) being 120 to 135°.

4. The dual-system sealing structure of the water tank according to claim 1, characterized in that: The motherboard (2) has a reinforcing bend (13) at its outer edge, and the reinforcing bend (13) has an annular sealing groove (14). The horizontal sealing section (9) of the sealing gasket (3) is embedded in the annular sealing groove (14).

5. The dual-system sealing structure of the water tank according to claim 4, characterized in that: The cross-section of the reinforcing bend (13) is L-shaped, U-shaped, or C-shaped.

6. The dual-system sealing structure of the water tank according to claim 1, characterized in that: On the motherboard (2), a reinforcing rib (15) is provided between every two adjacent positioning holes (4) at the location corresponding to the cooling area (5), and there is no reinforcing rib (15) at the location corresponding to the water-proof area (6) on the motherboard (2).

7. The dual-system sealing structure of the water tank according to claim 1, characterized in that: The horizontal sealing section (9) of the sealing gasket (3) has a cross-sectional outer contour of four arcs connected end to end, and the raised sealing section (10) of the sealing gasket (3) is rectangular.

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