A heat dissipation device, an all-in-one machine and a vehicle

Abstract

The utility model discloses a heat dissipation device and all -in -one, wherein, heat dissipation device includes main part for being located all -in -one's bottom, a plurality of heat dissipation parts, a plurality of heat dissipation parts are spaced apart and located main part, and every heat dissipation part is the columnar of extending along the first direction, and the section of every heat dissipation part is circular. The utility model can completely avoid adjacent structure heat reflection effect, need not to carry out additional surface treatment process to improve the heat dissipation efficiency, can save the cost.

Description

Technical Field

[0001] This utility model relates to the field of vehicle driver assistance, and in particular to a heat dissipation device, an integrated unit, and a vehicle. Background Technology

[0002] With the continuous development of automotive driver assistance technology, intelligent all-in-one machines, as a highly integrated in-vehicle device, can provide rich, stable, and accurate perception output by integrating multiple sensors, intelligent algorithms, and communication technologies, thereby achieving precise visual perception and assisted driving decision control.

[0003] In existing technologies, the heat dissipation structure design of smart all-in-one machines is mostly rib-shaped. Adjacent ribs will produce a heat reflection effect, which affects the heat dissipation efficiency and is also costly. Utility Model Content

[0004] The purpose of this invention is to solve the problem of low heat dissipation efficiency in existing smart all-in-one machines. This invention provides a heat dissipation device that can improve heat dissipation efficiency and reduce product costs.

[0005] To solve the above-mentioned technical problems, an embodiment of this utility model discloses a heat dissipation device, comprising:

[0006] The main body is designed to be located at the bottom of the all-in-one machine;

[0007] Multiple heat dissipation sections are spaced apart on the main body, each heat dissipation section is a column extending along a first direction, and each heat dissipation section has a circular cross-section.

[0008] Using the above technical solution, the main body of the heat dissipation device is located at the bottom of the integrated machine. Multiple heat dissipation parts are spaced apart on the main body. Each heat dissipation part is a column extending along a first direction (e.g., vertical direction), and the cross-section of each heat dissipation part is circular, that is, the side of each heat dissipation part is arc-shaped and not rib-shaped. The heat radiation cloud pattern is circularly diffused, with high density and wide radiation area, indicating that there are many heat dissipation paths and high heat radiation efficiency. It can completely avoid the heat reflection effect of adjacent structures, improve heat dissipation efficiency without additional surface treatment processes, and save costs.

[0009] According to another specific embodiment of the present invention, a heat dissipation device is disclosed. Along a second direction, the heat dissipation device includes a plurality of heat dissipation groups, and each heat dissipation group includes the plurality of heat dissipation parts.

[0010] By adopting the above technical solution, multiple heat dissipation parts can be evenly distributed and spaced on the other side of the main body, thereby improving the overall heat dissipation efficiency.

[0011] According to another specific embodiment of the present invention, a heat dissipation device is disclosed, wherein the multiple heat dissipation parts of each heat dissipation group are at the same height in the first direction, and the height of the multiple heat dissipation groups increases sequentially along the second direction.

[0012] Using the above technical solution, along the second direction, the height of multiple heat dissipation groups increases sequentially. At this time, the tops of multiple heat dissipation groups together form an inclined installation space, which can be used to place the integrated unit below the windshield of the vehicle. The inclined installation space allows the integrated unit to fit the streamlined design of the vehicle's front console, reducing the space occupied in the vehicle.

[0013] According to another specific embodiment of the present invention, a heat dissipation device is disclosed, wherein the height of the plurality of heat dissipation groups increases sequentially from 3.5 mm to 10 mm along the second direction.

[0014] According to another specific embodiment of the present invention, a heat dissipation device is disclosed, wherein the distance between two adjacent heat dissipation parts is any one of 10mm to 15mm.

[0015] According to another specific embodiment of the present invention, a heat dissipation device is disclosed, wherein each heat dissipation part includes a bottom surface and a top surface, and the diameter of the bottom surface is not less than the diameter of the top surface.

[0016] According to another specific embodiment of the present invention, a heat dissipation device is disclosed, wherein each heat dissipation part includes a bottom surface, and the diameter of the bottom surface includes any one of 4mm to 6mm.

[0017] According to another specific embodiment of the present invention, a heat dissipation device is disclosed, wherein the draft angle of each heat dissipation part is 5° to 10°.

[0018] The present invention also discloses an all-in-one machine, which includes at least the heat dissipation device described in any of the above embodiments, and the heat dissipation device is disposed at the bottom of the all-in-one machine.

[0019] According to another specific embodiment of the present invention, an all-in-one machine is disclosed. The all-in-one machine includes a housing and a control board. The control board is disposed inside the housing. The housing has an opening. A heat dissipation device is disposed over the opening. Along the first direction, one side of the heat dissipation device is in contact with the control board, and the other side is provided with a plurality of heat dissipation parts at intervals.

[0020] By adopting the above technical solution, along the first direction, one side of the heat dissipation device is in contact with the control board, and the other side is provided with multiple heat dissipation parts at intervals, which can directly dissipate the heat of the control board and further improve the heat dissipation efficiency.

[0021] The present invention also discloses a vehicle, which includes at least the integrated machine described in any of the above embodiments. Attached Figure Description

[0022] Figure 1 A perspective view of the all-in-one machine provided in the embodiment of this application is shown.

[0023] Figure 2 A top view of the heat dissipation device of an all-in-one computer provided in some embodiments is shown.

[0024] Figure 3 An exploded view of the all-in-one machine provided in an embodiment of this application is shown.

[0025] Figure 4a A thermal simulation diagram of the heat dissipation device of an all-in-one machine provided in some embodiments is shown.

[0026] Figure 4b Color simulation cloud diagrams of the heat dissipation devices of all-in-one machines provided in some embodiments are shown.

[0027] Figure 5 A perspective view of the all-in-one machine provided in the embodiments of this application, including a heat dissipation device, is shown.

[0028] Figure 6 A top view of the heat dissipation device of the all-in-one machine provided in the embodiment of this application is shown.

[0029] Figure 7a A thermal simulation diagram of the heat dissipation device of the all-in-one machine provided in the embodiment of this application is shown.

[0030] Figure 7b A color simulation cloud map of the heat dissipation device of the all-in-one machine provided in the embodiments of this application is shown.

[0031] Figure 8 A side view of the heat dissipation device provided in an embodiment of this application is shown.

[0032] Figure 9 A schematic diagram of the heat dissipation section of the heat dissipation device provided in an embodiment of this application is shown. Detailed Implementation

[0033] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0034] It should be noted that in this specification, similar reference numerals 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 embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", 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 that the utility model product is usually placed in during use. They are only for the convenience of describing the 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 the utility model.

[0036] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0037] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0039] In some embodiments, see Figure 1 , Figure 2 , Figure 3This application provides a vehicle including an integrated unit. The integrated unit includes a heat dissipation device 10, a housing 20, a control board 30, and a camera 40. The housing 20 has an opening 21 at its bottom, and the heat dissipation device 10 covers the opening 21. Exemplarily, the control board 30 includes a high-performance SoC chip (System-on-Chip) and a high-real-time chip integrating driving functions. It can work with the camera 40 to recognize high-curvature curves, road markings, stop lines, zebra crossings, etc., to improve the vehicle's driving assistance functions, such as full-speed adaptive cruise control, lane keeping assist, intelligent lane change assist, and intelligent lane selection.

[0040] Due to the specific application scenarios of all-in-one PCs, they have high requirements for chip computing power and algorithms, thus requiring greater heat dissipation. In some current embodiments, such as... Figure 2 As shown, the heat dissipation device 10 includes spaced-apart ribbed heat sinks 101. Adjacent ribbed heat sinks 101 can generate a heat reflection effect, affecting heat dissipation efficiency. For example, as... Figure 4a , Figure 4b As shown, Figure 4b The diagram shows a color contour plot of the heat dissipation simulation of the heat sink 101 using ANSYS software. The color contour plot represents the direction and efficiency of heat radiation, and the closer the area is to yellow-green, the higher the heat radiation efficiency.

[0041] In the color contour plot of the heat dissipation simulation of the ribbed heat sink 101, it can be seen that the central region a1 has a heat source. Due to the heat reflection effect between two adjacent ribbed heat sinks 101, the contour plot density of the central region a1 is low, indicating that there are few heat dissipation paths and low heat radiation efficiency. On the other hand, the contour plot of the edge region b1 is a strip-shaped diffusion with low density and small radiation area, indicating that the heat dissipation path is limited, further illustrating the low heat radiation efficiency.

[0042] Based on this, see Figure 5 , Figure 6 and combined Figure 3 This application provides a heat dissipation device 10, including a main body 11 and 94 heat dissipation parts 12. The 94 heat dissipation parts 12 are spaced apart on the main body 11. Each heat dissipation part 12 is a column extending along a first direction Z, and the cross-section of each heat dissipation part 12 is circular. Exemplarily, when each heat dissipation part 12 is cylindrical, the projection of the heat dissipation part 12 in the first direction Z is circular. This application does not limit this. For example, as described below, when each heat dissipation part 12 is frustum-shaped, the projection of the heat dissipation part 12 in the first direction Z is annular.

[0043] Understandably, the number of heat dissipation parts 12 is not limited in this application embodiment. For example, it can be 50, 66, 78, 99, 100, etc. Exemplarily, the main body 11 is plate-shaped and covers the opening 21. Along the first direction Z (e.g., the vertical direction), one side of the main body 11 is in contact with the control plate 30, and the other side is provided with a plurality of heat dissipation parts 12 at intervals.

[0044] Using the above technical solution, the main body 11 of the heat dissipation device 10 is located at the bottom of the integrated machine. Multiple heat dissipation sections 12 are spaced apart on the main body 11, and each heat dissipation section 12 is a column extending along a first direction Z (e.g., vertical direction), and the cross-section of each heat dissipation section 12 is circular, meaning the side surface of each heat dissipation section 12 is arc-shaped and not rib-shaped. Figure 7a , 7b As shown, Figure 7b The diagram shows a color cloud map of the heat dissipation device 10 provided in the embodiment of this application, which is simulated by ANSYS software. The color cloud map represents the direction and efficiency of heat radiation, and the area closer to yellow-green in the diagram indicates higher heat radiation efficiency.

[0045] In the color cloud map of the heat dissipation simulation, it can be seen that the central region a2 has a heat source, and the cloud map density of the central region a2 is high, indicating that there are many heat dissipation paths and high thermal radiation efficiency. Meanwhile, the thermal radiation cloud map of the edge region b2 shows an arc-shaped diffusion, with high density and a wide radiation area, indicating that there are many heat dissipation paths and high thermal radiation efficiency. This completely avoids the thermal reflection effect of adjacent structures, improving heat dissipation efficiency without the need for additional surface treatment processes, thus saving costs.

[0046] Furthermore, the heat dissipation device provided in this application embodiment can significantly increase the heat dissipation area. For example, with the area of ​​the main body 11 remaining unchanged, the heat dissipation area of ​​the rib heat sink 101 is 32518.1 mm², and the volume is 40489.7 mm³, while the heat dissipation area of ​​the heat dissipation part 12 provided in this application embodiment is 34897.5 mm², and the volume is 39878.1 mm³. The heat dissipation area of ​​the heat dissipation part 12 provided in this application embodiment is increased while the volume occupied is reduced.

[0047] When the all-in-one machine is running, the heat generated by the control board 30 can be conducted to the heat dissipation unit 12 through the main body 11 in a timely manner, and then the heat is conducted to the air through the heat dissipation unit 12, thereby achieving efficient heat dissipation, meeting the high heat dissipation requirements of the all-in-one machine in the development of intelligence, and ensuring that the high-performance chip in the all-in-one machine can operate stably within an ambient temperature of 85℃.

[0048] In some embodiments, see Figure 5 , Figure 6 and combined Figure 3The main body 11 includes a horizontal portion 111 and a vertical portion 112. Multiple heat dissipation portions 12 are spaced apart on the horizontal portion 111. The housing 20 also includes a cable tray 22. The camera 40 and the control board 30 are connected via a flexible copper busbar 41 or similar means. The flexible copper busbar 41 is located in the cable tray 22, and the vertical portion 112 covers the cable tray 22, further improving the heat dissipation area and efficiency. Exemplarily, the horizontal portion 111 also includes a connection hole 1111 for a connector 1112 (e.g., a screw) to pass through, so as to detachably fix the heat dissipation device 10 to the housing 20.

[0049] In some embodiments, see Figure 5 , Figure 6 , Figure 8 Along the second direction Y (e.g., the width direction of the all-in-one machine), the heat dissipation device 10 includes 10 heat dissipation groups, each heat dissipation group including multiple heat dissipation parts 12, which are spaced apart along the third direction X. It is understood that the embodiments of this application do not limit the number of heat dissipation parts 12 in each heat dissipation group; for example, it can be 2, 3, 4, 5, 6, 7, 8, 9, 10, etc. In this way, multiple heat dissipation parts 12 can be evenly distributed and spaced apart on the other side of the main body 11, thereby improving the overall heat dissipation efficiency.

[0050] In some embodiments, see Figure 5 , Figure 6 , Figure 8 In each heat dissipation group, the heights of the multiple heat dissipation sections 12 are equal in the first direction Z, and the heights of the multiple heat dissipation groups increase sequentially along the second direction Y. For example, along the second direction Y, the heights of the multiple heat dissipation groups increase sequentially from 3.5 mm to 10 mm. For example, when the heat dissipation device 10 includes six heat dissipation groups, along the second direction Y, from front to back, the first height h1 of the first heat dissipation group in the first direction Z is 3.5 mm, the second height h2 of the second heat dissipation group in the first direction Z is 4.8 mm, the third height h3 of the third heat dissipation group in the first direction Z is 6.1 mm, the fourth height h4 of the fourth heat dissipation group in the first direction Z is 7.4 mm, the fifth height h5 of the fifth heat dissipation group in the first direction Z is 8.7 mm, and the sixth height h6 of the sixth heat dissipation group in the first direction Z is 10 mm. It is understood that the embodiments of this application do not limit this, that is, the height difference between two adjacent heat dissipation groups can be 0.8 mm, 1 mm, 1.2 mm, etc., and the heights of the multiple heat dissipation groups can also increase by unequal values, or the heights of the multiple heat dissipation groups can be equal.

[0051] The height of the heat dissipation unit 12 provided in this embodiment ranges from 3.5mm to 10mm. In this case, the tops of multiple heat dissipation units together form an inclined mounting space, which can be used to mount the integrated unit below the vehicle's windshield. The inclined mounting space allows the integrated unit to conform to the streamlined design of the vehicle's dashboard, reducing the space occupied inside the vehicle. Furthermore, this embodiment does not limit the height of the multiple heat dissipation units; for example, it can be 2mm, 3mm, 15mm, etc.

[0052] For example, along the second direction Y, the tops of multiple heat dissipation groups with progressively increasing height form a slope m. The camera 40 has an optical axis n, and the slope m is parallel to the optical axis n. This is beneficial to the aesthetic design of the camera 40 on the whole vehicle and can save the installation space of the integrated machine.

[0053] In some embodiments, see Figure 5 , Figure 6 , Figure 8 The distance between two adjacent heat dissipation parts 12 is any one of 10mm to 15mm. For example, in the radial direction (e.g., the second direction Y and the third direction X) of the heat dissipation part 12, the distance between any two adjacent heat dissipation parts 12 can be 10mm, 11mm, 12.4mm, 15mm, etc., and this application embodiment does not limit this.

[0054] In some embodiments, see Figure 8 , Figure 9 Each heat dissipation part 12 includes a bottom surface 121 and a top surface 122, and the diameter of the bottom surface 121 is not less than the diameter of the top surface 122. For example, when the diameter of the bottom surface 121 is equal to the diameter of the top surface 122, each heat dissipation part 12 is cylindrical; when the diameter of the bottom surface 121 is greater than the diameter of the top surface 122, each heat dissipation part 12 is frustum-shaped, narrower at the top and wider at the bottom.

[0055] In some embodiments, see Figure 8 , Figure 9 The diameter of the bottom surface 121 includes any one of 4mm to 6mm. For example, the diameter of the bottom surface 121 is 4mm, 4.5mm or 6mm. It is understood that the embodiments of this application are not limited to this, and it can also be 5mm, 5.2mm, 3.8mm, etc.

[0056] In some embodiments, see Figure 8 , Figure 9Each heat dissipation part 12 has a draft angle c of 5° to 10°. For example, when manufacturing the heat dissipation device 10, in order to facilitate the removal of the heat dissipation part 12 from the mold, a certain angle is set on the heat dissipation part 12 parallel to the demolding direction (e.g., the first direction Z), which is the draft angle c. The embodiments of this application do not limit the specific size of the draft angle. For example, the draft angle can be 5°, 6°, 7.5°, 10°, etc.

[0057] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A heat dissipation device, characterized in that, include: The main body is designed to be located at the bottom of the all-in-one machine; Multiple heat dissipation sections are spaced apart on the main body, each heat dissipation section is a column extending along a first direction, and each heat dissipation section has a circular cross-section; Along the second direction, the heat dissipation device includes a plurality of heat dissipation groups, each heat dissipation group includes a plurality of heat dissipation parts, the plurality of heat dissipation parts of each heat dissipation group are at the same height in the first direction, and the height of the plurality of heat dissipation groups increases sequentially along the second direction.

2. The heat dissipation device as described in claim 1, characterized in that, Along the second direction, the height of the plurality of heat dissipation assemblies increases sequentially from 3.5 mm to 10 mm.

3. The heat dissipation device as described in claim 1 or 2, characterized in that, The distance between two adjacent heat dissipation parts is any one of 10mm to 15mm, or each heat dissipation part includes a bottom surface and a top surface, and the diameter of the bottom surface is not less than the diameter of the top surface.

4. The heat dissipation device as described in claim 1 or 2, characterized in that, Each of the heat dissipation components includes a bottom surface, the diameter of which includes any one of 4 mm to 6 mm.

5. The heat dissipation device as described in claim 1 or 2, characterized in that, The draft angle of each heat dissipation unit is 5° to 10°.

6. An all-in-one machine, characterized in that, Includes the heat dissipation device as described in any one of claims 1-5, wherein the heat dissipation device is disposed at the bottom of the all-in-one machine.

7. The all-in-one machine as described in claim 6, characterized in that, The all-in-one machine includes a housing and a control board. The control board is disposed inside the housing. The housing has an opening. A heat dissipation device is disposed over the opening. Along the first direction, one side of the heat dissipation device is in contact with the control board, and the other side is provided with multiple heat dissipation sections at intervals.

8. A vehicle, characterized in that, Including the all-in-one machine as described in claim 6 or 7.

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