Millimeter wave radar heat dissipation and flow guide device of emergency obstacle avoidance system
By designing a heat dissipation and airflow guiding device on the millimeter-wave radar and utilizing the airflow from the vehicle to form air convection, the problem of low heat dissipation efficiency in existing technologies is solved, achieving a highly efficient heat dissipation effect and a simple installation method.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI UNIV OF AUTOMOTIVE TECH
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-01
AI Technical Summary
Existing heat dissipation methods for millimeter-wave radar are inefficient and cannot meet the heat dissipation requirements of emergency obstacle avoidance systems.
Design a heat dissipation and airflow guiding device for a millimeter-wave radar in an emergency obstacle avoidance system. The airflow during vehicle movement enters the millimeter-wave radar body through the air inlet of the heat dissipation and airflow guiding part, and then flows out from the air outlet, forming an effective air convection. The heat dissipation and airflow guiding part includes a right-angle guide shell and a mesh cover, which has a simple structure and is easy to install.
It greatly improves heat dissipation efficiency, can quickly and effectively reduce the internal temperature of the millimeter-wave radar body, and prevent foreign objects from entering.
Smart Images

Figure CN224192297U_ABST
Abstract
Description
A heat dissipation and airflow guiding device for millimeter-wave radar in an emergency obstacle avoidance system Technical Field
[0001] This utility model relates to the field of automotive obstacle avoidance radar technology, and in particular to a heat dissipation and airflow guiding device for millimeter-wave radar in an emergency obstacle avoidance system. Background Technology
[0002] In modern intelligent transportation systems, millimeter-wave radar plays a crucial role in emergency obstacle avoidance systems. It monitors the vehicle's surroundings in real time, providing reliable obstacle detection information for safe driving. However, millimeter-wave radar generates heat during operation, and if not dissipated promptly, the temperature of its internal components will rise. Current heat dissipation methods for millimeter-wave radar are inefficient and fail to meet the cooling requirements of emergency obstacle avoidance systems. Therefore, there is an urgent need to design a simple, efficient heat dissipation device for millimeter-wave radar. Summary of the Invention
[0003] This invention provides a heat dissipation and diversion device for millimeter-wave radar in an emergency obstacle avoidance system, which solves the problem that the heat dissipation efficiency of existing millimeter-wave radar heat dissipation methods is not high and cannot meet the heat dissipation requirements of emergency obstacle avoidance systems for millimeter-wave radar.
[0004] The technical problem solved by this utility model is achieved by the following technical solution:
[0005] A heat dissipation and airflow guiding device for a millimeter-wave radar in an emergency obstacle avoidance system, comprising:
[0006] The main body of the millimeter-wave radar has an air inlet and an air outlet on its outer shell.
[0007] The heat dissipation guide is installed at the air inlet of the outer shell of the millimeter-wave radar body. When the vehicle is moving, the airflow enters the outer shell of the millimeter-wave radar body through the air inlet via the heat dissipation guide and flows out through the air outlet for heat dissipation.
[0008] In one specific implementation, the heat dissipation guide portion includes a right-angle guide shell and a first mesh cover mounted on the right-angle guide shell.
[0009] In one specific implementation, the right-angle air guide shell includes a right-angle duct and mounting plates disposed on both sides of the upper end of the right-angle duct. The lower end of the right-angle duct is provided with an air inlet, and the mounting plates are provided with bolts for connection to the outer shell of the millimeter-wave radar body.
[0010] In one specific implementation, the width of the air inlet hood is greater than the width of the right-angle duct.
[0011] In one specific implementation, the first mesh cover is detachably connected to the opening end of the air inlet hood by screws.
[0012] In one specific implementation, the air inlet is located at the lower end of the outer shell of the millimeter-wave radar body, and the air outlet is located at the upper end of the outer shell of the millimeter-wave radar body.
[0013] In one specific implementation, a second mesh cover is detachably installed at the air outlet.
[0014] The beneficial effects of this utility model are:
[0015] 1. Utilizing the airflow generated by a moving vehicle, the airflow is introduced into the millimeter-wave radar body through the air intake via a heat dissipation guide, and then flows out through the air outlet, forming effective air convection. Compared with the traditional heat dissipation method of setting heat dissipation fins on the outer shell, this greatly improves heat dissipation efficiency and can quickly and effectively reduce the internal temperature of the millimeter-wave radar body.
[0016] 2. The right-angle airflow guide shell of the heat dissipation guide section is connected to the outer shell of the millimeter-wave radar body through bolts on the mounting plate. The structure is simple and easy to install and disassemble. At the same time, the first mesh cover and the second mesh cover are detachably connected to the air inlet and air outlet respectively through screws, which can prevent foreign objects from entering the interior of the millimeter-wave radar body. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 is a schematic diagram of the overall first-view structure of this utility model.
[0019] Figure 2 is a schematic diagram of the overall cross-sectional structure of this utility model.
[0020] Figure 3 is a schematic diagram of the heat dissipation and airflow guiding part of this utility model.
[0021] Figure 4 is a schematic diagram of the overall second-view structure of this utility model.
[0022] In the diagram: 100, main body of millimeter-wave radar; 101, air inlet; 102, air outlet; 200, heat dissipation guide section; 210, right-angle guide shell; 211, right-angle air duct; 212, mounting plate; 213, air inlet cover; 214, bolt; 220, first mesh cover; 300, second mesh cover. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0024] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.
[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0026] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the equipment or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0029] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0030] Referring to Figures 1-4, this utility model provides a heat dissipation and airflow guiding device for a millimeter-wave radar in an emergency obstacle avoidance system, comprising:
[0031] The millimeter-wave radar body 100 has an air inlet 101 and an air outlet 102 on its outer shell.
[0032] The heat dissipation guide 200 is installed at the air inlet 101 of the housing of the millimeter-wave radar body 100. When the vehicle is in motion, the airflow passes through the heat dissipation guide 200 and enters the housing of the millimeter-wave radar body 100 from the air inlet 101, and flows out from the air outlet 102 for heat dissipation.
[0033] Utilizing the airflow generated by the vehicle's movement, the airflow is introduced into the millimeter-wave radar body 100 from the air inlet 101 via the heat dissipation guide section 200, and then flows out from the air outlet 102, forming effective air convection. Compared with the traditional heat dissipation method of setting heat dissipation fins on the outer shell, this greatly improves the heat dissipation efficiency and can quickly and effectively reduce the internal temperature of the millimeter-wave radar body.
[0034] As a further preferred embodiment of the above-described embodiment, the heat dissipation guide portion 200 includes a right-angle guide shell 210 and a first mesh cover 220 mounted on the right-angle guide shell 210.
[0035] The right-angle air guide shell 210 includes a right-angle air duct 211 and mounting plates 212 disposed on both sides of the upper end of the right-angle air duct 211. An air inlet 213 is provided at the lower end of the right-angle air duct 211. Bolts 214 are provided on the mounting plate 212 for connecting to the outer shell of the millimeter-wave radar body 100.
[0036] Furthermore, the width of the air inlet 213 is greater than the width of the right-angle duct 211. This design, where the air inlet width is greater than the right-angle duct width, allows for better collection and guidance of airflow during vehicle movement.
[0037] Furthermore, the first mesh cover 220 is detachably connected to the opening end of the air inlet hood 213 by screws.
[0038] As a further preferred embodiment of the above implementation, the air inlet 101 is located at the lower end of the outer shell of the millimeter-wave radar body 100, and the air outlet 102 is located at the upper end of the outer shell of the millimeter-wave radar body 100.
[0039] The air inlet is located at the bottom of the housing, and the air outlet is located at the top of the housing. Combining the principle of hot air rising, this greatly improves heat dissipation efficiency and can quickly and effectively reduce the internal temperature of the millimeter-wave radar body.
[0040] As a further preferred embodiment of the above implementation, a second mesh cover 300 is detachably installed at the air outlet 102.
[0041] Working principle: When the vehicle is moving, the outside air, under the influence of the airflow generated by the vehicle's movement, first passes through the air intake. Because the width of the air intake is greater than the width of the right-angle duct, it can more effectively collect airflow and guide it into the right-angle duct. The airflow enters the outer shell of the millimeter-wave radar body through the air intake via the right-angle duct, absorbing the heat generated by the radar during its flow inside the radar body. As the hot air rises, the air carrying the heat is discharged from the air outlet located at the top of the millimeter-wave radar body shell, forming air convection, thereby achieving heat dissipation for the millimeter-wave radar body.
[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A heat dissipation and airflow guiding device for a millimeter-wave radar in an emergency obstacle avoidance system, characterized in that, include: The millimeter-wave radar body (100) has an air inlet (101) and an air outlet (102) on its outer shell; a heat dissipation guide (200) is installed at the air inlet (101) of the outer shell of the millimeter-wave radar body (100). When the vehicle is in motion, the airflow enters the outer shell of the millimeter-wave radar body (100) through the air inlet (101) via the heat dissipation guide (200) and flows out from the air outlet (102) for heat dissipation.
2. The heat dissipation and airflow guiding device for a millimeter-wave radar in an emergency obstacle avoidance system according to claim 1, characterized in that: The heat dissipation guide section (200) includes a right-angle guide shell (210) and a first mesh cover (220) mounted on the right-angle guide shell (210).
3. The heat dissipation and airflow guiding device for a millimeter-wave radar in an emergency obstacle avoidance system according to claim 2, characterized in that: The right-angle air guide shell (210) includes a right-angle air duct (211) and mounting plates (212) disposed on both sides of the upper end of the right-angle air duct (211). The lower end of the right-angle air duct (211) is provided with an air inlet (213). The mounting plate (212) is provided with bolts (214) for connecting to the outer shell of the millimeter-wave radar body (100).
4. The heat dissipation and airflow guiding device for a millimeter-wave radar in an emergency obstacle avoidance system according to claim 3, characterized in that: The width of the air inlet hood (213) is greater than the width of the right-angle duct (211).
5. The heat dissipation and airflow guiding device for a millimeter-wave radar in an emergency obstacle avoidance system according to claim 4, characterized in that: The first mesh cover (220) is detachably connected to the opening end of the air inlet hood (213) by screws.
6. The heat dissipation and airflow guiding device for a millimeter-wave radar in an emergency obstacle avoidance system according to claim 1, characterized in that: The air inlet (101) is located at the lower end of the outer shell of the millimeter-wave radar body (100), and the air outlet (102) is located at the upper end of the outer shell of the millimeter-wave radar body (100).
7. A heat dissipation and airflow guiding device for a millimeter-wave radar in an emergency obstacle avoidance system according to claim 1 or 6, characterized in that: A second mesh cover (300) is detachably installed at the air outlet (102).