Millimeter wave radar device with self-cleaning heat dissipation structure

Abstract

The utility model relates to a millimeter wave radar device with a self-cleaning heat dissipation structure, which comprises a heat dissipation mechanism, a cleaning mechanism and a rotating mechanism, the heat dissipation mechanism comprises a fixed part, a heat dissipation fan and at least two heat dissipation fins, the heat dissipation fan and the at least two heat dissipation fins are arranged on the fixed part, the heat dissipation fins are obliquely arranged, and the cleaning mechanism comprises a protruding plate and at least two cleaning frames. The cleaning frame is slidably arranged on the cooling fins in a sleeving mode, the protruding plate is fixed to one end of the cleaning frame, the rotating mechanism is in driving connection with the protruding plate, and the rotating mechanism is located between the cooling fan and the cooling fins. Compared with the prior art, when the heat dissipation mechanism is started each time, the heat dissipation fins can be cleaned, the heat dissipation effect of the heat dissipation fins is guaranteed, and the heat dissipation device has the advantages of being simple and reliable in structure and the like.

Description

Technical Field

[0001] This utility model relates to the field of millimeter-wave radar devices, and in particular to a millimeter-wave radar device with a self-cleaning heat dissipation structure. Background Technology

[0002] In many fields, such as intelligent transportation, industrial automation control, and security monitoring, the demand for high-precision target monitoring is increasing. Traditional monitoring methods, such as optical sensors and ultrasonic sensors, have many limitations when facing complex environments. Optical sensors are easily affected by lighting and weather, which greatly reduces their detection accuracy; ultrasonic sensors have limited ranging accuracy and weak ability to identify the features of the monitored target.

[0003] When millimeter-wave radar is in use, the radar antenna needs to perform high-frequency operations such as continuous scanning, which easily generates a lot of heat inside the device. Since the radar antenna is a high-precision electronic device, excessively high temperatures can damage the precision components inside the device and affect its normal operation.

[0004] For example, the utility model with publication number CN222319132U discloses a heat dissipation type millimeter-wave radar, which relates to the field of millimeter-wave radar equipment technology. It includes a millimeter-wave radar body and a base plate. The millimeter-wave radar body includes a lower shell, a radar PCB board, and an upper shell. The radar PCB board is fixedly installed in the lower shell. A guide component is provided between the lower shell and the upper shell. The lower shell and the upper shell are connected by a fastening component. Multiple heat dissipation fins are provided on the peripheral outer walls of both the lower shell and the upper shell.

[0005] However, the heat dissipation structure of the aforementioned heat-dissipating millimeter-wave radar uses heat dissipation fins in conjunction with a fan for heat dissipation. During the heat dissipation process, dust will adhere to the surface of the heat dissipation fins, affecting the heat dissipation effect of the structure. Regular cleaning is required, but the installation location of the heat dissipation structure makes maintenance inconvenient and results in poor timeliness of cleaning.

[0006] Therefore, there is a need to provide a millimeter-wave radar device that can clean the dust on the heat sink fins in a timely manner. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of the prior art, such as dust accumulation on the surface of the heat dissipation fins during use, which affects the heat dissipation effect of the heat dissipation fins, and the inconvenience of later maintenance and poor timeliness of cleaning, and to provide a millimeter-wave radar device with a self-cleaning heat dissipation structure.

[0008] The objective of this utility model can be achieved through the following technical solutions:

[0009] A millimeter-wave radar device with a self-cleaning heat dissipation structure includes a heat dissipation mechanism, a cleaning mechanism rotation mechanism, and a fixing member, wherein the heat dissipation mechanism includes a fixing member, a cooling fan on the fixing member, and at least two heat dissipation fins, the heat dissipation fins being inclined.

[0010] The cleaning structure includes a protruding plate and at least two cleaning frames. The cleaning frames are slidably fitted onto the heat dissipation fins. The protruding plate is fixed to one end of the cleaning frame. The rotating mechanism is connected to the protruding plate and is located between the cooling fan and the heat dissipation fins.

[0011] Preferably, the fixing component includes a heat dissipation base and a heat-conducting column;

[0012] The heat-conducting pillars are vertically fixed on the heat dissipation base, the heat dissipation fan is fixed on the heat dissipation base, the number of heat-conducting pillars is at least three, the heat dissipation fins are fixed on the heat-conducting pillars, and each heat-conducting pillar is evenly distributed on both sides of the heat dissipation fins.

[0013] Preferably, the rotating mechanism includes a mounting column, a rotating ring, and a rotating impeller;

[0014] The mounting column is vertically fixed on the mounting plate, the rotating ring is rotatably fixed at the end of the mounting column away from the mounting plate, the rotating impeller is fixed on the rotating ring, the protruding plate abuts against one side of the blades of the rotating impeller, and the cooling fan is directly opposite the rotating impeller and the cooling fins.

[0015] Preferably, the width of the blade of the rotating impeller at the end away from the rotating ring is greater than the vertical movement height of the protruding plate.

[0016] Preferably, the protruding plate has an arc-shaped structure, and the side of the protruding plate that contacts the blade is smooth.

[0017] Preferably, the length of the blades of the rotating impeller is greater than the distance between the mounting post and the end of the protruding plate near the blade.

[0018] Preferably, the inclination angle between the heat dissipation fins and the horizontal plane is in the range of 15-30 degrees, and the heat dissipation fins are distributed in parallel.

[0019] Preferably, the cleaning structure further includes connecting columns, and each cleaning frame is fixed on the connecting columns, which are located at both ends of the cleaning frame.

[0020] Preferably, the cleaning frame is provided with a cleaning port that cooperates with the heat dissipation fins, and the cleaning port is inclined.

[0021] Preferably, a cleaning brush is provided on the inner wall of the cleaning port, and the end of the cleaning brush near the heat dissipation fins is squeezed by elastic deformation between the cleaning brush and the heat dissipation fins.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] (1) This solution uses a rotating mechanism to push the cleaning frame from one end of the heat dissipation fins and press it against the other end each time the cooling fan dissipates heat. When the heat dissipation ends, the tilted structure of the heat dissipation fins returns to its original position. This allows the surface of the heat dissipation fins to be cleaned before each operation of the heat dissipation mechanism, thus ensuring the heat dissipation effect of the heat dissipation fins. The timely cleaning of the heat dissipation fins effectively improves the heat dissipation efficiency of the heat dissipation mechanism. The structure is simple, the operation is reliable, and the maintenance cost is reduced.

[0024] (2) This solution maximizes the cleaning area of ​​the cleaning mechanism on the heat dissipation fins by making the width of the end of the rotating impeller away from the rotating ring the same as or greater than the sliding height of the protruding plate; and by making the shape of the protruding plate arc-shaped and the side of the protruding plate that contacts the rotating impeller smooth, it is easier to drive the cleaning mechanism to move upward when the rotating impeller rotates.

[0025] (3) This solution sets the tilt angle of the heat dissipation fins between 15 and 30 degrees and the outer surface of the heat dissipation fins is smooth, which enables the cleaning mechanism to move upward while the impeller is rotating. When the impeller is not rotating, the cleaning mechanism can fall under the action of gravity, so as to realize the automatic reset of the cleaning frame each time and the action before each heat dissipation. The structure is simple and reliable.

[0026] (4) This solution can clean the surface of the heat dissipation fins more thoroughly by installing a cleaning brush on the inner wall of the cleaning frame. When there is no dust on the outer surface of the heat dissipation fins, the heat dissipation effect is better. It can also reduce the friction between the inner surface of the cleaning frame and the outer surface of the heat dissipation fins, reduce the driving force of the cleaning frame, and extend the service life of the heat dissipation structure. Attached Figure Description

[0027] Figure 1 A schematic diagram of the structure of a millimeter-wave radar device with a self-cleaning heat dissipation structure provided by this utility model;

[0028] Figure 2 A top view of a millimeter-wave radar device with a self-cleaning heat dissipation structure provided by this utility model;

[0029] Figure 3 Right view of a millimeter-wave radar device with a self-cleaning heat dissipation structure provided by this utility model;

[0030] Figure 4 A schematic diagram of the cleaning mechanism provided by this utility model;

[0031] In the diagram: 1. Heat sink base, 2. Heat conduction column, 3. Heat sink fins, 4. Cleaning mechanism, 5. Cooling fan, 6. Rotating mechanism, 401. Cleaning frame, 402. Connecting column, 403. Protruding plate, 601. Mounting column, 602. Rotating ring, 603. Rotating impeller. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] 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.

[0035] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device 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 utility model.

[0036] It should be noted that 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. Therefore, 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.

[0037] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0038] Example 1

[0039] like Figures 1 to 3 As shown, this embodiment provides a millimeter-wave radar device with a self-cleaning heat dissipation structure, including a heat dissipation mechanism, a cleaning mechanism 4, and a rotating mechanism 6. The heat dissipation mechanism includes a fixing member, a cooling fan 5 on the fixing member, and at least two heat dissipation fins 3. The heat dissipation fins 3 are inclined.

[0040] The cleaning structure 4 includes a protruding plate 403 and at least two cleaning frames 401. The cleaning frames 401 are slidably fitted onto the heat dissipation fins 3. The protruding plate 403 is fixed to one end of the cleaning frame 401. The rotating mechanism 6 drives the protruding plate 403. The rotating mechanism 6 is located between the cooling fan 5 and the heat dissipation fins 3.

[0041] Working principle: After the cooling fan 5 starts, it drives the rotating mechanism 6 to rotate. The rotating mechanism 6 pushes the protruding plate 403, causing the cleaning frame 401 to slide along the surface of the heat dissipation fins 3 to clean the surface of the heat dissipation fins 3. After the cooling fan 5 stops rotating, the rotating mechanism 6 resets, the protruding plate 403 loses its support, and the cleaning frame 401 slides down along the inclined heat dissipation fins 3, ready to clean the heat dissipation fins 3 next time it cools down.

[0042] By rotating the mechanism 6, the cleaning frame 401 is pushed from one end of the heat dissipation fin 3 and pressed against the other end each time the cooling fan 5 dissipates heat. When the heat dissipation ends, the tilted structure of the heat dissipation fin 3 returns to its original position. This allows the surface of the heat dissipation fin 3 to be cleaned before each operation of the heat dissipation mechanism, thus ensuring the heat dissipation effect of the heat dissipation fin 3. The timely cleaning of the heat dissipation fin 3 effectively improves the heat dissipation efficiency of the heat dissipation mechanism. The structure is simple, the operation is reliable, and the later maintenance cost is reduced.

[0043] In this embodiment, the fixing component includes a heat dissipation base 1 and a heat conduction column 2;

[0044] The heat-conducting pillars 2 are vertically fixed on the heat dissipation base 1, the heat dissipation fan 5 is fixed on the heat dissipation base 1, the number of heat-conducting pillars 2 is at least three, the heat dissipation fins 3 are fixed on the heat-conducting pillars 2, and each heat-conducting pillar 2 is evenly distributed on both sides of the heat dissipation fins 3.

[0045] In this embodiment, the rotating mechanism 6 includes a mounting column 601, a rotating ring 602, and a rotating impeller 603;

[0046] Mounting post 601 is vertically fixed on mounting plate. Rotating ring 602 is rotatably fixed at the end of mounting post 601 away from mounting plate. Rotating impeller 603 is fixed on rotating ring 602. Protruding plate 403 abuts against one side of blades of rotating impeller 603. Cooling fan 5 is directly opposite rotating impeller 603 and cooling fins 3.

[0047] In this design, the width of the blade of the rotating impeller 603 at the end furthest from the rotating ring 602 is greater than the vertical movement height of the protruding plate 403. The protruding plate 403 has an arc-shaped structure, and the side of the protruding plate 403 that contacts the blade is smooth. The length of the blade of the rotating impeller 603 is greater than the distance between the mounting post 601 and the end of the protruding plate 403 closest to the blade.

[0048] Making the width of the end of the rotating impeller 603 away from the rotating ring 602 the same as or greater than the sliding height of the protruding plate 403 maximizes the cleaning area of ​​the cleaning mechanism 4 on the heat dissipation fins 3; making the protruding plate 403 arc-shaped and the side of the protruding plate 403 in contact with the rotating impeller 603 smooth makes it easier to drive the cleaning mechanism 4 to move upward when the rotating impeller 603 rotates.

[0049] In a preferred embodiment, the inclination angle between the heat dissipation fins 3 and the horizontal plane is in the range of 15-30 degrees, the heat dissipation fins 3 are distributed in parallel, and the outer surface of the heat dissipation fins 3 is smooth.

[0050] The tilt angle of the heat dissipation fins 3 is set between 15 and 30 degrees, and the outer surface of the heat dissipation fins 3 is smooth. This allows the cleaning mechanism 4 to move upward while the impeller 603 is rotating, and when the impeller 603 is not rotating, the cleaning mechanism 4 can fall under the action of gravity to clean the surface of the heat dissipation fins 3, thereby improving the heat dissipation effect.

[0051] Preferred implementation methods, such as Figure 4 As shown, the cleaning structure 4 also includes a connecting post 402, and each cleaning frame 401 is fixed on the connecting post 402. The connecting post 402 is located at both ends of the cleaning frame 401.

[0052] Furthermore, the cleaning frame 401 is provided with a cleaning port that cooperates with the heat dissipation fins 3, and the cleaning port is set at an angle. A cleaning brush is provided on the inner wall of the cleaning port, and the end of the cleaning brush near the heat dissipation fins 3 is squeezed between the cleaning brush and the heat dissipation fins 3 through elastic deformation.

[0053] A cleaning brush for cleaning the surface of the heat dissipation fins 3 is installed on the inner wall of the cleaning frame 401. This brush can clean the surface of the heat dissipation fins 3 more thoroughly. When there is no dust on the outer surface of the heat dissipation fins 3, the heat dissipation effect is better. It can also reduce the friction between the inner surface of the cleaning frame and the outer surface of the heat dissipation fins 3, reduce the driving force of the cleaning frame 401, and extend the service life of the heat dissipation structure.

[0054] In conjunction with the above preferred embodiments, such as Figures 1 to 4 As shown, this embodiment provides a more specific millimeter-wave radar device, including a heat dissipation base 1 and a heat conduction column 2 vertically fixed above the heat dissipation base 1. At least two inclined heat dissipation fins 3 are fixed through the heat conduction column 2.

[0055] Among them, the outer side of the heat dissipation fin 3 is fitted with a cleaning mechanism 4 that slides along its inclined direction, and a heat dissipation fan 5 that blows air horizontally onto the heat dissipation fin 3 is installed on one side of the heat dissipation base 1 through a fixing frame. A rotating mechanism 6 is fixed between the heat dissipation base 1 and the heat dissipation fan 5. The inclination angle of the heat dissipation fin 3 is 20 degrees, and the outer surface of the heat dissipation fin 3 is smooth.

[0056] The cleaning mechanism 4 includes at least two cleaning frames 401 that are slidably sleeved on the outside of the heat dissipation fins 3. Two adjacent cleaning frames 401 are fixed together by a connecting post 402. One end of a cleaning frame 401 is fixed with a protruding plate 403. A cleaning brush for cleaning the surface of the heat dissipation fins 3 is installed on the inner wall of the cleaning frame 401. The end of the cleaning brush away from the inner wall of the cleaning frame 401 is pressed against the surface of the heat dissipation fins 3.

[0057] The rotating mechanism 6 includes a mounting column 601 welded to a fixed frame. A rotating ring 602 is rotatably sleeved on the outer side of the mounting column 601. A rotating impeller 603 is fixed to the outer side of the rotating ring 602. The rotating impeller 603 is blown by the cooling fan 5, causing the protruding plate 403 to move upward along the inclined direction of the cooling fins 3. The width of the end of the rotating impeller 603 away from the rotating ring 602 is the same as or greater than the sliding height of the protruding plate 403. The protruding plate 403 is arc-shaped, and the side of the protruding plate 403 that contacts the rotating impeller 603 is smooth.

[0058] The specific working process is as follows: When the millimeter-wave radar transceiver module and signal processing unit inside the monitoring device generate a lot of heat during operation, it is necessary to dissipate the heat inside. At this time, the cooling fan 5 is started, and the cooling fan 5 will blow air onto the rotating mechanism 6 and the heat dissipation fins 3. The rotating impeller 603 will rotate under the airflow of the cooling fan 5. The rotation of the rotating impeller 603 will drive the protruding plate 403 to move upward along the inclined direction of the heat dissipation fins 3. The upward movement of the protruding plate 403 will drive the cleaning frame 401 to move upward along the inclined direction of the heat dissipation fins 3. The cleaning frame 401 can clean the surface of the heat dissipation fins 3, thereby greatly improving the heat dissipation efficiency. When the cooling fan 5 stops running, the rotating impeller 603 is no longer blown by the airflow. At this time, the entire cleaning mechanism 4 will slide downward along the heat dissipation fins 3 due to gravity, preparing for the next cleaning.

[0059] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A millimeter-wave radar device with a self-cleaning heat dissipation structure, characterized in that, The system includes a heat dissipation mechanism, a cleaning mechanism (4), and a rotating mechanism (6). The heat dissipation mechanism includes a fixing member, a heat dissipation fan (5) on the fixing member, and at least two heat dissipation fins (3). The heat dissipation fins (3) are arranged at an angle. The cleaning mechanism (4) includes a protruding plate (403) and at least two cleaning frames (401). The cleaning frame (401) is slidably sleeved on the heat dissipation fins (3). The protruding plate (403) is fixed at one end of the cleaning frame (401). The rotating mechanism (6) drives the protruding plate (403). The rotating mechanism (6) is located between the cooling fan (5) and the heat dissipation fins (3).

2. A millimeter-wave radar device with a self-cleaning heat dissipation structure according to claim 1, characterized in that, The fixing component includes a heat dissipation base (1) and a heat conduction column (2); The heat-conducting column (2) is vertically fixed on the heat dissipation base (1), the heat dissipation fan (5) is fixed on the heat dissipation base (1), the number of heat-conducting columns (2) is at least three, the heat dissipation fins (3) are fixed on the heat-conducting columns (2), and each heat-conducting column (2) is evenly distributed on both sides of the heat dissipation fins (3).

3. A millimeter-wave radar device with a self-cleaning heat dissipation structure according to claim 1, characterized in that, The rotating mechanism (6) includes a mounting column (601), a rotating ring (602), and a rotating impeller (603). The mounting post (601) is vertically fixed on the mounting plate. The rotating ring (602) is rotatably fixed at the end of the mounting post (601) away from the mounting plate. The rotating impeller (603) is fixed on the rotating ring (602). The protruding plate (403) abuts against one side of the blades of the rotating impeller (603). The cooling fan (5) is directly opposite the rotating impeller (603) and the cooling fins (3).

4. A millimeter-wave radar device with a self-cleaning heat dissipation structure according to claim 3, characterized in that, The width of the blade of the rotating impeller (603) at the end away from the rotating ring (602) is greater than the vertical movement height of the protruding plate (403).

5. A millimeter-wave radar device with a self-cleaning heat dissipation structure according to claim 3, characterized in that, The protruding plate (403) has an arc-shaped structure, and the side of the protruding plate (403) that contacts the blade is smooth.

6. A millimeter-wave radar device with a self-cleaning heat dissipation structure according to claim 3, characterized in that, The length of the blades of the rotating impeller (603) is greater than the distance between the mounting post (601) and the protrusion plate (403) near the blade end.

7. A millimeter-wave radar device with a self-cleaning heat dissipation structure according to claim 1, characterized in that, The inclination angle between the heat dissipation fins (3) and the horizontal plane is in the range of 15-30 degrees, and each heat dissipation fin (3) is distributed in parallel.

8. A millimeter-wave radar device with a self-cleaning heat dissipation structure according to claim 1, characterized in that, The cleaning mechanism (4) also includes a connecting column (402), and each cleaning frame (401) is fixed on the connecting column (402). The connecting column (402) is located at both ends of the cleaning frame (401).

9. A millimeter-wave radar device with a self-cleaning heat dissipation structure according to claim 1, characterized in that, The cleaning frame (401) is provided with a cleaning port that cooperates with the heat dissipation fins (3), and the cleaning port is set at an angle.

10. A millimeter-wave radar device with a self-cleaning heat dissipation structure according to claim 9, characterized in that, The cleaning port is provided with a cleaning brush on its inner wall. The end of the cleaning brush that is close to the heat dissipation fin (3) is squeezed by elastic deformation with the heat dissipation fin (3).

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