High-sealing heat dissipation module of automobile auxiliary driving radar

Abstract

The utility model discloses an automobile auxiliary driving radar's high sealing heat dissipation module. The heat dissipation module includes: fin and plastic shell, and the vertical shell plate upper surface outer end of the heat dissipation shell body is equipped with the glue injection mouth, and the vertical shell plate outside wall is integrally equipped with a plurality of first clamping end, and the bottom shell plate lower surface edge of heat dissipation shell body is equipped with the sealing groove, and the wall body inner chamber and heat dissipation shell body peripheral wall cooperate, and the wall body inner wall is integrally equipped with a plurality of second clamping end and the lower end is integrally vertically connected positioning shoulder, and the sealing groove fills down sealing glue, and the plastic shell and fin are assembled, and the vertical shell plate shaft sleeve connects the wall body inner chamber and the first through -hole in the clearance of heat dissipation strip and is worn into the positioning shoulder, and the first clamping end and second clamping end buckle connection and bottom shell plate and down sealing glue adhere positioning shoulder, and then the glue injection mouth and the clearance groove of wall body fill up sealing glue. The utility model has the effect that the sealing performance is good, and the safety reliability is high, and the assembly efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of vehicle radar heat dissipation, and in particular to a highly sealed heat dissipation module for automotive driver assistance radar. Background Technology

[0002] Vehicle-mounted radar is a crucial component of vehicles with driver assistance features. It generates heat during operation, requiring a cooling module to dissipate this heat promptly for stable operation. Current vehicle-mounted radars require good sealing and heat dissipation performance. The current cooling structure is a split design, with each component sealed by a sealing ring or gasket. However, this design has drawbacks: heat is transferred during operation, maintaining a high temperature over long periods. When the sealing rings or gaskets are exposed to high temperatures for extended periods, they are prone to aging, leading to decreased sealing performance and significantly increasing the risk of leaks, waterproofing failure, and dustproofing failure, resulting in low reliability. Some vehicle models use welded seals, such as laser welding or argon arc welding to seal the metal radar housing. However, this method is difficult and costly to repair. Utility Model Content

[0003] To address one or more of the aforementioned problems, this utility model provides a highly sealed heat dissipation module for automotive driver assistance radar.

[0004] According to one aspect of the present invention, a highly sealed heat dissipation module for an automotive driver assistance radar includes:

[0005] The heat sink includes a heat sink housing with an open top. The outer end of the upper surface of the circumferential shell plate of the heat sink housing is provided with an annular groove-shaped glue injection port. Several first clip ends are integrally provided on the outer side wall of the circumferential shell plate. The lower surface edge of the bottom shell plate of the heat sink housing is provided with an annular sealing groove and several heat dissipation strips are integrally connected in the middle of its lower surface.

[0006] The plastic shell includes an annular wall with open top and bottom. The inner cavity of the wall and the outer peripheral wall of the heat dissipation shell are fitted together. The inner side wall of the wall is integrally provided with several second locking ends that cooperate with the first locking end, and the lower end of the second locking end is integrally vertically connected to the positioning shoulder. A first through hole is formed in the positioning shoulder.

[0007] The sealing groove is filled with sealant, the plastic shell and heat sink are assembled, the vertical shell plate is connected to the inner cavity of the wall and the gap of the heat sink strip passes through the first through hole, the first clip end and the second clip end are snapped together and the bottom shell plate and the lower sealant are attached to the positioning shoulder, and then the gap between the glue injection port and the wall is filled with sealant to form a whole part.

[0008] In some embodiments, the outer wall of the vertical shell plate is dematerialized to form multiple connection ports with their lower ends penetrating the bottom shell plate, and a first locking end is formed within the connection port.

[0009] In some implementations, the connection port is a rectangular notch with the upper end connected to the glue injection port and the lower end penetrating through the bottom shell plate.

[0010] In some implementations, one card end is a card slot and the other card end is a mating card head.

[0011] In some embodiments, the first card end and the second card end are inclined card blocks, the lower end of the first card end is provided with a card contact surface that slopes from the outside to the inside and downward, and the upper end of the second card end is provided with a card contact surface with the same slope.

[0012] The first card end's contact surface elastically presses against the second card end's contact surface until the first card end enters and adheres to the lower surface of the second card end.

[0013] In some embodiments, the vertical shell plate is a rectangular tube, and the first locking ends of the two sets of opposite faces are staggered.

[0014] In some implementations, in each set of opposing surfaces, one surface has two first card ends symmetrically arranged, and the other surface has a first card end located at its center.

[0015] In some embodiments, the sealing groove is a rectangular groove or a trapezoidal groove, and the injection port is a rectangular right-angled notch structure.

[0016] In some implementations, a plurality of equally spaced rectangular prism-shaped heat dissipation strips are integrally connected to the lower surface of the bottom shell plate.

[0017] In some embodiments, the lower and upper sealants are made of silicone rubber; the heat sink is made of aluminum alloy; and the plastic housing is made of PBT material suitable for laser welding.

[0018] The advantages of this high-sealing heat dissipation module for automotive driver assistance radar are as follows: First, the heat dissipation module is precisely positioned by a positioning shoulder and fixedly connected with the snap-fit ​​of the plastic shell. Through multiple layers of adhesive sealing, a tight connection between the plastic shell and the heat sink is achieved, resulting in high sealing performance. This also avoids high-temperature aging, ensuring high sealing reliability and greatly reducing the risk of air leakage, waterproofing failure, and dustproofing failure during use, thus ensuring high safety and reliability. Second, the snap-fit ​​connection makes disassembly and assembly easier and reduces maintenance costs compared to welded structures. Third, this structure has high assembly efficiency, greatly improving production efficiency. Fourth, the structure is simple and compact, without increasing product volume or reducing internal space, making it suitable for maintenance and modification of existing products. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram (a) of a high-sealing heat dissipation module for an automotive driver assistance radar according to one embodiment of the present invention.

[0020] Figure 2 for Figure 1 The diagram shows a cross-sectional schematic of a highly sealed heat dissipation module for an automotive driver assistance radar.

[0021] Figure 3 for Figure 2 A three-dimensional schematic diagram of the heat sink shown;

[0022] Figure 4 for Figure 2 A three-dimensional schematic diagram of the heat dissipation plate shown;

[0023] Figure 5 for Figure 1 A three-dimensional schematic diagram (II) of a highly sealed heat dissipation module for automotive driver assistance radar is shown.

[0024] Heat sink 1, heat sink housing 10, bottom shell plate 100, vertical shell plate 101, glue injection port 102, first clip end 103, sealing groove 104, connection port 105, heat sink strip 11, screw hole post 12.

[0025] Plastic outer shell 2, wall 20, second locking end 21, positioning shoulder 22, first through hole 23, connecting ear plate 24;

[0026] Lower sealant 3; upper sealant 4. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to the directions in the accompanying drawings, while the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0028] Figures 1 to 5 A schematic diagram illustrates a highly sealed heat dissipation module for an automotive driver assistance radar according to one embodiment of the present invention. As shown in the figure, the highly sealed heat dissipation module for the automotive driver assistance radar includes:

[0029] Heat sink 1 includes a heat sink housing 10 with an open top. The outer end of the upper surface of the perimeter plate 101 of the heat sink housing 10 is provided with an annular groove-shaped glue injection port 102. The outer side wall of the perimeter plate 101 is integrally provided with a number of first locking ends 103. The lower edge of the bottom plate 100 of the heat sink housing 10 is provided with an annular sealing groove 104 and a number of heat dissipation strips 11 are integrally connected in the middle of its lower surface.

[0030] The plastic shell 2 includes an annular wall 20 with open top and bottom. The inner cavity of the wall 20 is matched with the outer peripheral wall of the heat dissipation shell 10. The inner side wall of the wall 20 is integrally provided with a plurality of second locking ends 21 that match the first locking end 103 and the lower end of the second locking end is integrally vertically connected to the positioning shoulder 22. A first through hole 23 is formed in the positioning shoulder 22.

[0031] The sealing groove 104 is filled with lower sealant 3. The plastic shell 2 and the heat sink 1 are assembled. The vertical shell plate 101 is bushed to connect to the inner cavity of the wall 20 and the heat sink 11 passes through the first through hole 23. The first snap end 103 and the second snap end 21 are snapped together and the bottom shell plate 100 and the lower sealant 3 are attached to the positioning shoulder 22. Then the gap between the glue injection port 102 and the wall 20 is filled with sealant 4 to form an integral part.

[0032] The advantages of this high-sealing heat dissipation module for automotive driver assistance radar are as follows: First, the heat dissipation module is precisely positioned by the positioning shoulder 22 and fixedly connected with the snap-fit ​​of the plastic shell 2. Through multiple adhesive seals, a tight connection between the plastic shell 2 and the heat sink 1 is achieved, which has high sealing performance and avoids high-temperature aging. The sealing reliability is high, which greatly reduces the risk of air leakage, waterproof failure, and dustproof failure during use, and ensures high safety and reliability. Second, the snap-fit ​​connection is more convenient to disassemble and assemble than the welded structure, and the maintenance cost is low. Third, the assembly efficiency of this structure is high, which greatly improves the production efficiency. Fourth, the structure is simple and compact, without increasing the product volume or reducing the internal space structure, and is suitable for the maintenance and modification of existing products.

[0033] Furthermore, the outer wall of the vertical shell plate 101 is dematerialized to form multiple connection ports 105 that penetrate the bottom shell plate 100 at their lower ends, and a first locking end 103 is formed within each connection port 105. Preferably, the connection port 105 is a rectangular notch with its upper end connected to the glue injection port 102 and its lower end penetrating the bottom shell plate 100. The beneficial effect is that this design allows adhesive to enter the connection port 105, enabling simultaneous adhesive bonding at the locking point, further improving the tightness of the connection.

[0034] Preferably, in the first card end 103 and the second card end 21, one card end is a card slot and the other card end is a mating card head. The advantage of this arrangement is that it facilitates installation and removal.

[0035] Preferably, the first card end 103 and the second card end 21 are inclined card blocks. The lower end of the first card end 103 is provided with a carding surface that slopes from the outside to the inside and downward, and the upper end of the second card end 21 is provided with a carding surface that slopes in the same direction.

[0036] The first locking end 103 elastically presses against the locking end 21 until the first locking end 103 enters and adheres to the lower surface of the second locking end 21. Its advantages are: this design facilitates assembly and disassembly, and is suitable for the production of thinner housings.

[0037] Furthermore, the vertical shell plate 101 is a rectangular tube, and the first locking ends 103 on the two sets of opposing surfaces are staggered. Preferably, in each set of opposing surfaces, two first locking ends 103 are symmetrically arranged on one surface and one first locking end 103 is located at the center of the other surface. The beneficial effect is that this arrangement further improves the connection strength.

[0038] Preferably, the sealing groove 104 is a rectangular groove or a trapezoidal groove, and the depth of the sealing groove 104 is 0.5mm-5mm;

[0039] The injection port 102 has a rectangular right-angled notch structure. Its advantage is that the sealing groove 104 of this depth can provide a sufficient bonding end to achieve a reliable seal without reducing the structural strength of the product.

[0040] Preferably, a number of equally spaced rectangular prism-shaped heat dissipation strips 11 are integrally connected to the lower surface of the bottom shell plate 100; the advantage of this arrangement is that it facilitates processing and manufacturing.

[0041] Preferably, the bottom shell plate 100 is provided with a plurality of screw holes 12, which are fixedly connected to the vehicle radar; the plastic shell 2 is provided with a plurality of connecting ear plates 24 with through holes.

[0042] Preferably, the lower sealant 3 and the upper sealant 4 are made of silicone rubber, which has good bonding performance and excellent high temperature resistance; the heat sink 1 is made of aluminum alloy, which has high heat dissipation performance; the plastic shell 2 is made of PBT material that is suitable for laser welding, which is beneficial for processing and manufacturing.

[0043] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A highly sealed heat dissipation module for automotive driver assistance radar, characterized in that, include: Heat sink (1), the heat sink (1) includes a heat sink housing (10) with an open upper end, the outer end of the upper surface of the perimeter shell plate (101) of the heat sink housing (10) is provided with an annular groove-shaped glue injection port (102), the outer side wall of the perimeter shell plate (101) is integrally provided with a number of first locking ends (103), the lower edge of the bottom shell plate (100) of the heat sink housing (10) is provided with an annular sealing groove (104), and a number of heat dissipation strips (11) are integrally connected in the middle of its lower surface. The plastic shell (2) includes an annular wall (20) with open top and bottom. The inner cavity of the wall (20) is matched with the outer peripheral wall of the heat dissipation shell (10). The inner side wall of the wall (20) is integrally provided with a plurality of second locking ends (21) that match the first locking end (103) and the lower end of the second locking end is integrally vertically connected to the positioning shoulder (22). A first through hole (23) is formed in the positioning shoulder (22). The sealing groove (104) is filled with lower sealant (3), the plastic shell (2) and heat sink (1) are assembled, the vertical shell plate (101) is bushed to connect the inner cavity of the wall (20) and the heat sink strip (11) passes through the first through hole (23) through the gap, the first snap end (103) and the second snap end (21) are snapped together and the bottom shell plate (100) and the lower sealant (3) are attached to the positioning shoulder (22), and then the gap groove between the glue injection port (102) and the wall (20) is filled with upper sealant (4) to form an integral part.

2. The heat dissipation module according to claim 1, characterized in that, The outer wall of the vertical shell plate (101) is dematerialized to form multiple connection ports (105) with their lower ends penetrating the bottom shell plate (100), and a first locking end (103) is formed in the connection port (105).

3. The heat dissipation module according to claim 2, characterized in that, The connection port (105) is a rectangular notch with the upper end connected to the glue injection port (102) and the lower end penetrating the bottom shell plate (100).

4. The heat dissipation module according to claim 3, characterized in that, In the first card end (103) and the second card end (21), one card end is a card slot and the other card end is a matching card head.

5. The heat dissipation module according to claim 3, characterized in that, The first card end (103) and the second card end (21) are inclined card blocks. The lower end of the first card end (103) is provided with a card contact surface that slopes from the outside to the inside and downward. The upper end of the second card end (21) is provided with the same inclined card contact surface. The first card end (103) elastically presses the second card end (21) until the first card end (103) enters and fits against the lower surface of the second card end (21).

6. The heat dissipation module according to claim 4 or 5, characterized in that, The vertical shell plate (101) is a rectangular tube, and the first card ends (103) of the two sets of opposite faces are staggered.

7. The heat dissipation module according to claim 6, characterized in that, In each pair of opposite faces, two first card ends (103) are symmetrically arranged on one face and one first card end (103) is located at the center of the other face.

8. The heat dissipation module according to claim 6, characterized in that, The sealing groove (104) is a rectangular groove or a trapezoidal groove, and the glue injection port (102) is a rectangular right-angled notch structure.

9. The heat dissipation module according to claim 1, characterized in that, The lower surface of the bottom shell plate (100) is integrally connected with several equally spaced rectangular prism-shaped heat dissipation strips (11).

10. The heat dissipation module according to claim 1, characterized in that, The lower sealant (3) and upper sealant (4) are made of silicone rubber; the heat sink (1) is made of aluminum alloy; and the plastic shell (2) is made of PBT material suitable for laser welding.

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