Waterproof structure of automobile domain controller radiator
By designing an annular groove and water guide channel structure between the radiator and the domain controller housing, the problem of insufficient waterproof performance of the radiator in water accumulation environment is solved, achieving a balance between efficient waterproof effect and heat dissipation performance.
Patent Information
- Application Number
- CN202423130889.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-18
AI Technical Summary
The radiator of a car domain controller is easily splashed by water during water accumulation or car washing, resulting in insufficient waterproof performance, which affects the heat dissipation performance of the radiator and the safety of the equipment.
An annular groove and a water channel structure are designed between the heat sink and the domain controller housing. The groove collects accumulated water and the water channel drains it out. Combined with the surrounding edge and the groove, they form an alternating protection to block splashing water droplets and ensure waterproofing without affecting heat dissipation performance.
It effectively prevents water from entering the domain controller and blocks splashing water droplets, achieving an IPX2 waterproof standard while maintaining the heat dissipation efficiency of the radiator. The structure is simple and easy to install and maintain.
Smart Images
Figure CN223600226U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of automobile domain controller, specifically a waterproof structure of automobile domain controller radiator. BACKGROUND
[0002] In order to adapt to the functional requirement of automobile diversification, the number of matched electronic control unit is increasing, which needs automobile domain controller to realize integrated management to these electronic control units. However, limited by installation space, the layout of main control MCU (micro control unit) faces challenges: it is difficult to be placed at the bottom of domain controller, or even if it is placed at the bottom, its heat dissipation performance may be insufficient to meet the heat dissipation requirement of MCU. Therefore, the radiator often needs to be designed to protrude outside the domain controller shell. In the process of automobile crossing water or washing, water splashes may splash on the domain controller. Since the connection between the radiator and the main control MCU, and the waterproof structure between them and the domain controller shell are crucial to protect the equipment, these structures must be able to resist the invasion of splashing water to meet at least IPX2 level waterproof standard. SUMMARY
[0003] The utility model provides a kind of waterproof structure of automobile domain controller radiator, which does not affect the heat dissipation performance of radiator, and also has good waterproof effect.
[0004] The waterproof structure of the automobile domain controller radiator includes a domain controller shell with a window at the position opposite to the MCU and a radiator covering the window and in contact with the MCU for heat dissipation. The domain controller shell is provided with an annular groove along the edge of the window. The domain controller shell is also provided with a water guide groove in communication with the groove for water diversion. The edge of the radiator is also provided with a surrounding edge bent downward and extending into the groove to the middle part. The surrounding edge and the two side edges of the groove have a gap.
[0005] The waterproof structure of the automobile domain controller radiator can collect the residual water near the radiator through the groove and discharge it through the water guide groove, effectively preventing the water from entering the interior of the domain controller through the gap between the radiator and the domain controller shell. In addition, the surrounding edge of the edge of the radiator bent downward and the two side edges of the groove can form an interlaced protective structure, which can effectively block the splashing water droplets. The structure is simple and has good waterproof effect.
[0006] As a preferred scheme of the utility model, the inner side edge of the groove extends upward with a higher surrounding fence than the outer side edge, and the surrounding fence and the radiator have a gap.
[0007] As a preferred scheme of the utility model, the water guide groove is arranged through the window, extending from the outer side edge of the groove to the side edge of the domain controller shell.
[0008] As a preferred scheme of the utility model, the height of the water guide groove gradually decreases from the groove side edge to the side edge of the domain controller shell.
[0009] As a preferred scheme of the utility model, the radiator is provided with an ear plate corresponding to the water guide groove, and the radiator is fixed to the domain controller shell through screw holes on the ear plate. BRIEF DESCRIPTION OF DRAWINGS
[0010] Fig. 1 It is a schematic view of a waterproof structure of an automobile domain controller radiator.
[0011] Fig. 2 It is a schematic view of a waterproof structure of an automobile domain controller radiator without installing a radiator.
[0012] Fig. 3 It is a lateral sectional view of a waterproof structure of an automobile domain controller radiator. DETAILED DESCRIPTION
[0013] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0014] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings). If the certain posture changes, the directional indications also change accordingly.
[0015] In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0016] If the embodiments of the utility model have the description of "first" or "second", etc., the description of "first" or "second" etc. is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical features (including but not limited to structure, material or characteristics, etc.) of each embodiment can be combined arbitrarily, in order to make the description simple, not all possible combinations of the technical features in the embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that it is within the scope of the description.
[0017] As shown in Figs. 1-3 A waterproof structure of an automobile domain controller radiator, including a domain controller shell 3 provided with a window 2 at the position opposite to MCU1 and a radiator 4 covering the window and contacting the MCU for heat dissipation, characterized in that the domain controller shell is provided with an annular groove 5 along the edge of the window, the domain controller shell is further provided with a water guide groove 6 in communication with the groove for water diversion, and the edge of the radiator is further provided with a surrounding edge 401 bent downward and extending into the groove to the middle, and the surrounding edge leaves a gap with the two side edges of the groove. The residual water near the radiator can be collected through the groove and discharged through the water guide groove, effectively preventing the water from entering the interior of the domain controller through the gap between the radiator and the domain controller shell. In addition, the surrounding edge of the edge of the radiator bent downward and the two side edges of the groove can form an interlaced protection structure, which can effectively block the splashing water droplets, and the structure is simple and has good waterproof effect.
[0018] The inner side edge of the groove 5 extends upward and has a higher surrounding edge 502 than the outer side edge 501, and a gap is left between the surrounding edge and the radiator. When the accumulated water reaches the edge of the outer side edge of the groove, it will be smoothly discharged through the water guide groove, and will not cross the surrounding edge extending on the inner side edge. This ensures that the necessary gap is maintained between the radiator and the domain controller shell to achieve effective heat dissipation. At the same time, the waterproof effect is also taken into account, that is, even if the heat dissipation efficiency is improved, the equipment can also be protected from moisture.
[0019] The water guide groove 6 is provided through the window 2, extending from the edge of the outer side edge 501 of the groove to the side edge of the domain controller shell. The water guide groove is a through structure, extending from the two side edges of the groove to the side edge of the domain controller shell, ensuring that the accumulated water can be smoothly discharged from the groove, thereby further improving the waterproof effect.
[0020] The height of the water guide groove 6 gradually decreases from the groove side edge to the domain controller shell side edge, and the water guide groove has a gradually decreasing height, extending from the side edge of the groove to the side edge of the domain controller shell. Water can naturally flow to a lower place due to gravity, thereby more effectively guiding the accumulated water to flow out of the groove, improving the drainage efficiency and preventing water backflow, and further improving the waterproof effect.
[0021] The heat sink 4 is provided with an ear plate 402 corresponding to the water guide groove, and the heat sink is fixed to the domain controller shell through the screw hole on the ear plate. The heat sink is provided with an ear plate corresponding to the water guide groove, so that the heat sink is fixed to the domain controller shell through the pre-set screw hole on the ear plate, ensuring the stable connection between the heat sink and the domain controller shell, and facilitating installation and maintenance. In addition, the ear plate is also ingeniously connected with the water guide groove, so that the water flowing through the water guide groove can participate in heat exchange, thereby improving the heat dissipation efficiency of the heat sink.
[0022] The above is only the preferred embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structural transformation, direct / indirect application in other related technical fields under the utility model concept of the present application is included in the patent protection range of the present application. In this paper, "embodiment" means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment that is not mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments without conflict, and the embodiments of the present application and the features in the embodiments can be combined with each other.
Claims
1. A waterproof structure for a heat sink of an automotive domain controller, comprising a domain controller housing (3) having a window (2) located opposite to an MCU (1) and a heat sink (4) that covers the window and contacts the MCU for heat dissipation, characterized in that, The domain controller housing has an annular groove (5) along the edge of the window. The domain controller housing also has a water guide groove (6) that communicates with the groove for drainage. The edge of the radiator also has a rim (401) that bends downward and extends into the middle of the groove. There is a gap between the rim and the two sides of the groove.
2. The waterproof structure of the automotive domain controller radiator according to claim 1, characterized in that, The inner side of the groove (5) extends upward with a barrier (502) that is higher than the outer side (501), and there is a gap between the barrier and the radiator.
3. The waterproof structure of the automotive domain controller radiator according to claim 1, characterized in that, The water channel (6) is provided through the window (2) and extends from the outer edge (501) of the groove to the side edge of the domain controller housing.
4. The waterproof structure of the automotive domain controller radiator according to claim 3, characterized in that, The height of the water guide groove (6) gradually decreases from the side edge of the groove to the side edge of the domain controller housing.
5. The waterproof structure of the automotive domain controller radiator according to claim 1, characterized in that, The radiator (4) is provided with ear plates (402) corresponding to the water guide groove, and the radiator is fixed to the domain controller housing through screw holes on the ear plates.