Air-cooled heat dissipation structure, vehicle-mounted device and vehicle

Abstract

The utility model discloses an air-cooled heat dissipation structure, a vehicle-mounted device and a vehicle, and relates to the technical field of air cooling. The air-cooled heat dissipation structure comprises a shell and a fan body installed at the top of the shell, a main air inlet is formed in the bottom face of the fan body, and an airflow gap is formed between the main air inlet and the top face of the shell; a plurality of cooling fins are arranged on the shell around the fan body area, the cooling fins are arranged at intervals to form an air inlet channel and an air outlet channel, the air inlet channel is communicated with a main air inlet of the fan body, and the air outlet channel is communicated with an air outlet of the fan body. According to the utility model, the fan is arranged among the radiating fins of the shell, so that airflow passes through the shell when entering the fan and flowing out of the fan, the area of the airflow passing through the radiating fins is increased, and the radiating effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air cooling, and particularly relates to an air-cooled heat dissipation structure, a vehicle-mounted device and a vehicle. Background Technique

[0002] The vehicle-mounted host is an important part of an automobile, and its functions mainly include audio playing, CD input, USB input, mobile phone input, radio input, navigation function and adjustment of other related functions of the vehicle. In order to ensure the realization of the above functions, it is necessary to configure functional devices of each module in the vehicle-mounted host.

[0003] During the use of the vehicle-mounted host, in order to prevent the temperature of the vehicle-mounted host from being too high, a fan is arranged in the vehicle-mounted host. By installing the fan outside the vehicle-mounted host, the air inlet of the fan body corresponds to the outside, and the inhaled air is directly blown onto the heat sink to realize the heat dissipation of the vehicle-mounted host. This installation method can only dissipate heat from the devices on the side of the fan outlet, and the heat dissipation position is too limited; moreover, in the above solution, the air outlet of the fan is in direct contact with the heat sink at a short distance, resulting in excessive noise during the heat dissipation process. Summary of the Utility Model

[0004] In order to solve at least one of the problems mentioned in the above background technique, the utility model provides an air-cooled heat dissipation structure, a vehicle-mounted device and a vehicle. By installing the fan in the middle of the heat sink of the housing, the air flow passes through the housing both when entering and leaving the fan, increasing the area of the air flow passing through the heat sink, thereby improving the heat dissipation effect. At the same time, a space is reserved between the heat sink and the fan body to reduce noise.

[0005] The specific technical solutions provided by the embodiments of the utility model are as follows:

[0006] In a first aspect, an air-cooled heat dissipation structure includes a housing and a fan body installed on the top of the housing. The bottom surface of the fan body is provided with a main air inlet, and an air flow gap is formed between the main air inlet and the top surface of the housing; a plurality of heat sinks are arranged on the housing around the fan body area, and the air inlet channel and the air outlet channel are formed by the plurality of heat sinks arranged at intervals. The air inlet channel is communicated with the main air inlet of the fan body, and the air outlet channel is communicated with the air outlet of the fan body.

[0007] Further, the air inlet channel includes a first air duct, a second air duct and a third air duct. The first air duct and the second air duct are arranged in parallel and are respectively arranged on opposite sides of the fan body. The third air duct is perpendicular to the first air duct or, and the third air duct and the air outlet channel are respectively arranged on opposite sides of the fan body.

[0008] Further, the plane where the air outlet is located is adjacent to and perpendicular to the plane where the main air inlet is located.

[0009] Further, the housing is connected with a baffle, the baffle is arranged at the air outlet of the fan body, and the position of the air outlet along the depth direction of the housing is higher than that of the baffle.

[0010] Further, partition pieces are arranged in the air outlet channel, the partition pieces are distributed at intervals in the heat sinks, and the horizontal distance between the partition pieces and the air outlet is smaller than the horizontal distance between the heat sinks and the air outlet.

[0011] Further, partition pieces are arranged in the air outlet channel, the partition pieces are distributed at intervals in the heat sinks, and the horizontal distance between the partition pieces and the air outlet is smaller than the horizontal distance between the heat sinks and the air outlet.

[0012] Further, a secondary air inlet is also arranged on the fan body, and the secondary air inlet is arranged on the side wall of the fan body opposite to the main air inlet.

[0013] Further, a cover plate is included, and the cover plate is detachably installed on the side of the fan body away from the main air inlet.

[0014] Further, through holes are formed at positions corresponding to the secondary air inlets on the cover plate, and the through holes penetrate through the cover plate and are communicated with the secondary air inlets.

[0015] Further, the outlet ends of the first air duct, the second air duct and the third air duct are all communicated with the main air inlet of the fan body.

[0016] Further, the fan body includes one of a centrifugal fan and a blower fan.

[0017] In a second aspect, a vehicle-mounted device is provided, and the vehicle-mounted device includes the air-cooled heat dissipation structure as described above.

[0018] In a third aspect, a vehicle is provided, and the vehicle is equipped with the vehicle-mounted device as described above.

[0019] The embodiment of the present utility model has the following beneficial effects:

[0020] 1. In the solution of the embodiment of the present utility model, when the fan body is started, the air flow enters the fan body from the air inlet channel on one side of the fan body, and then blows towards the air outlet channel through the air outlet of the fan body. Even when the air flow enters the fan body, it passes through the heat sinks and also passes through the heat sinks during the air outlet process. Through this solution, the air flow during the air inlet process and the air outlet process can both pass through the heat sinks, thereby improving the heat dissipation efficiency of the fan.

[0021] 2. A reserved space is provided between the heat sink in the outlet channel and the air outlet of the fan body, and the horizontal distance between the partition piece and the air outlet of the fan body is smaller than the horizontal distance between the heat sink and the air outlet, thereby reducing the noise impact caused by the operation of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 Showing an overall schematic diagram of the air-cooled heat dissipation structure according to the present application;

[0024] Figure 2 Showing an exploded schematic diagram of the air-cooled heat dissipation structure according to the present application;

[0025] Figure 3 Showing a top view of the housing without the fan body installed;

[0026] Figure 4 Showing a top view of the air-cooled heat dissipation structure according to the present application;

[0027] Figure 5 Showing according to Figure 4 A cross-sectional view taken along the A-A direction in

[0028] Figure 6 Showing a side view of the air-cooled heat dissipation structure according to the present application;

[0029] Figure 7 Showing according to Figure 6 A cross-sectional view taken along the B-B direction in

[0030] Figure 8 Showing a schematic diagram for embodying the installation of the antenna body on the housing;

[0031] In the figure, 1, housing; 2, fan body; 3, main air inlet; 4, heat sink; 5, air inlet channel; 501, first air duct; 502, second air duct; 503, third air duct; 6, air outlet channel; 7, air outlet; 8, PCB board; 9, connecting column; 10, connecting plate; 11, air flow gap; 12, baffle; 13, partition piece; 14, secondary air inlet; 15, cover plate; 16, through hole; 17, receiving port; 18, connector; 19, receiving groove; 20, antenna body; 21, rear cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] To make the objectives, technical solutions, and advantages of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used herein in the description of the present application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0035] In the embodiments of the present application, the "upper" and "lower" are both based on Figure 1 and Figure 2 the orientation shown in

[0036] Embodiment 1

[0037] An air-cooled heat dissipation structure, as shown in Figure 1 and Figure 2 , includes a housing 1 and a fan body 2. The housing 1 is a cuboid structure with an opening on one side. The fan body 2 is installed on the top side of the housing 1 away from the opening direction. The fan body 2 is detachably installed on the top of the housing 1. A main air inlet 3 is provided on the bottom surface of the fan body 2, and an air flow gap 11 is formed between the main air inlet 3 and the top surface of the housing 1. As shown in Figure 3 , a plurality of heat sinks 4 are fixedly connected to the top surface of the housing 1. The heat sinks 4 extend and penetrate through the side wall of the housing 1 to contact the outside. The heat sinks 4 are on the top surface of the housing 1, and the lengths of the heat sinks 4 are respectively arranged along the X-axis and Y-axis directions. The air inlet channels 5 and the air outlet channels 6 are formed by the interval arrangement of a plurality of heat sinks 4. The air inlet channel 5 is communicated with the main air inlet 3 of the fan body 2, and the air outlet channel 6 is communicated with the air outlet 7 of the fan body 2.

[0038] It should be noted that the fan body 2 in this embodiment is a centrifugal fan, which intakes air through the main air inlet 3 provided at the bottom of the fan body 2 and discharges air through the air outlet 7 provided on the side of the fan body 2. The air outlet 7 is also provided on the side of the fan body 2, and the main air inlet 3 and the air outlet 7 are respectively distributed on two mutually perpendicular side surfaces.

[0039] As Figure 2 shown, at the open end of the housing 1, a PCB board 8 and a rear cover 21 are sequentially assembled and connected. The rear cover 21 is detachably installed in the housing 1 through a connecting member. Through the air-cooled heat dissipation structure in this embodiment, the heat generated during the operation of the housing 1 and the components inside the housing 1 can be dissipated.

[0040] To improve the heat dissipation effect of the heat sinks 4 on the housing 1 and ensure that the heat sinks 4 in each direction have air flow passing through, the air intake channel 5 is provided to include a first air duct 501, a second air duct 502, and a third air duct 503. The first air duct 501 and the second air duct 502 are composed of a plurality of heat sinks 4 with lengths along the direction of the Y axis, and the first air duct 501 and the second air duct 502 are also along the Y axis direction and are respectively provided on the opposite sides of the fan body 2. The third air duct 503 is composed of a plurality of heat sinks 4 with lengths along the X axis direction, and the direction of the third air duct 503 is perpendicular to the first air duct 501 or the second air duct 502, and the third air duct 503 and the air outlet channel 6 are respectively provided on the opposite sides of the fan body 2. At the same time, the inlet ends of the first air duct 501, the second air duct 502, and the third air duct 503 are communicated with the outside of the housing 1, and the outlet ends are all communicated with the main air inlet 3 of the fan body 2. When the fan body 2 is started, the air flow enters the fan body 2 simultaneously from three directions of the first air duct 501, the second air duct 502, and the third air duct 503, and then the air flow in three directions on the housing 1 passes through the heat sinks 4, thereby improving the heat dissipation efficiency of the fan.

[0041] Furthermore, to improve the assembly convenience of the air-cooled heat dissipation structure, the fan body 2 is detachably installed on the housing 1 through a connecting member. A connecting post 9 is provided at the position on the housing 1 for installing the fan body 2. A first connection hole (not shown) is opened at the top of the connecting post 9. A connecting plate 10 corresponding to the connecting post 9 is fixedly connected to the outer side wall of the fan body 2. A second connection hole (not shown) is opened on the connecting plate 10. When the fan body 2 is installed on the housing 1 through the cooperation of the connecting plate 10 and the connecting post 9 by a connecting member passing through the first connection hole and the second connection hole, an air flow gap 11 is formed between the fan body 2 and the housing 1 to ensure that the air flow in the first air duct 501, the second air duct 502, and the third air duct 503 enters the fan body 2 through the air flow gap 11.

[0042] As Figure 3As shown in the figure, a baffle 12 is fixedly connected to the top of the housing 1. The baffle 12 is arranged at the air outlet 7 of the fan body 2, and the position of the air outlet 7 in the depth direction of the housing 1 is higher than that of the baffle 12, so that the air flow can smoothly flow out from the air outlet 7 of the fan body 2 to ensure that it will not be blocked by the baffle 12.

[0043] In order to reduce the noise of the air flow flowing out from the air outlet channel 6 and blowing towards the heat sink 4, a partition 13 is arranged in the air outlet channel 6. The partition 13 is also made of the same material as the heat sink 4, and there are two partitions 13. The two partitions 13 are spaced apart and distributed in the heat sink 4 of the air outlet channel 6 and are arranged in parallel with other heat sinks 4. Specifically, the partition 13 divides the heat dissipation in the air outlet channel 6 into three parts, so that the air flow flows through the three parts of the heat sink 4 respectively after flowing out from the air outlet 7 for heat dissipation. The horizontal distance between the partition 13 and the air outlet 7 is also set to be less than the horizontal distance between the heat sink 4 and the air outlet 7. By setting a reserved space between most of the heat sinks 4 and the air outlet 7, the noise in the air outlet channel 6 can be reduced.

[0044] In a specific embodiment, a secondary air inlet 14 is further arranged on the fan body 2. The secondary air inlet 14 is arranged on the side wall of the fan body 2 opposite to the main air inlet 3. A cover plate 15 is installed outside the secondary air inlet 14. The cover plate 15 is detachably installed on the side of the fan body 2 away from the main air inlet 3 through a connector. A through hole 16 is opened at the corresponding position of the cover plate 15 and the secondary air inlet 14. The through hole 16 penetrates through the cover plate 15 and communicates with the secondary air inlet 14, so that when the fan main body operates, part of the external air flow enters the interior of the fan body 2 through the through hole 16 and the secondary air inlet 14.

[0045] An accommodation opening 17 is arranged at one end of the housing 1. A connector 18 is installed on the PCB board 8. When the PCB board 8 is assembled in the housing 1, the connector 18 is correspondingly installed in the accommodation opening 17. An accommodation groove 19 is opened at the end of the housing 1 away from the accommodation opening 17. An antenna body 20 is installed in the accommodation groove 19. The antenna body 20 is installed in the accommodation groove 19 so that the outer side wall of the antenna body 20 is directly in contact with the outside of the housing 1, thereby ensuring that the antenna body 20 can stably receive signals.

[0046] It should be noted that the connectors in this embodiment include but are not limited to screws and bolts.

[0047] Specific implementation process: Set the main air inlet 3 of the fan body 2 corresponding to the side wall of the top surface of the housing 1, and align the connecting plate 10 with the connecting column 9. Pass a connecting piece through the first connecting hole and the second connecting hole to install the fan body 2 on the top surface of the housing 1, and an air flow gap 11 is formed between the main air inlet 3 and the top surface of the housing 1. When the fan body 2 is started, air flows into the fan body 2 simultaneously from three directions: the first air duct 501, the second air duct 502, and the third air duct 503, and then enters the air outlet passage 6 through the air outlet 7 of the fan body 2, so that the air flows in three directions on the housing 1 all pass through the heat sink 4, and the air flows in the air inlet process and the air outlet process all pass through the heat sink 4, thereby improving the heat dissipation efficiency of the fan.

[0048] Embodiment 2

[0049] Corresponding to the above embodiment, the present application provides a vehicle-mounted device, including the air-cooled heat dissipation structure as described above. The vehicle-mounted device includes, but is not limited to, a vehicle-mounted host, a vehicle-mounted cockpit controller, or a vehicle-mounted intelligent driving controller.

[0050] In a specific embodiment, the air-cooled heat dissipation structure includes a housing 1 and a fan body 2 installed on the top of the housing 1. The bottom surface of the fan body 2 is provided with a main air inlet 3, and an air flow gap 11 is formed between the main air inlet 3 and the top surface of the housing 1. A plurality of heat sinks 4 are arranged around the fan body 2 area on the housing 1, and the air inlet passage 5 and the air outlet passage 6 are formed by arranging a plurality of the heat sinks 4 at intervals. The air inlet passage 5 is communicated with the main air inlet 3 of the fan body 2, and the air outlet passage 6 is communicated with the air outlet 7 of the fan body 2.

[0051] In a specific embodiment, the air inlet passage 5 includes a first air duct 501, a second air duct 502, and a third air duct 503. The first air duct 501 and the second air duct 502 are arranged in parallel and are respectively arranged on opposite sides of the fan body 2. The third air duct 503 is arranged perpendicular to the first air duct 501, and the third air duct 503 and the air outlet passage 6 are respectively arranged on opposite sides of the fan body 2.

[0052] In a specific embodiment, the plane where the air outlet 7 is located is adjacent to and perpendicular to the plane where the main air inlet 3 is located.

[0053] In a specific embodiment, the housing 1 is connected with a baffle 12. The baffle 12 is arranged at the air outlet 7 of the fan body 2, and the position of the air outlet 7 in the depth direction of the housing 1 is higher than that of the baffle 12.

[0054] In a specific embodiment, a partition piece 13 is arranged in the air outlet channel 6. The partition pieces 13 are distributed at intervals in the heat sink 4, and the horizontal distance between the partition piece 13 and the air outlet 7 is less than the horizontal distance between the heat sink 4 and the air outlet 7.

[0055] In a specific embodiment, a secondary air inlet 14 is further arranged on the fan body 2. The secondary air inlet 14 is arranged on the side wall of the fan body 2 opposite to the main air inlet 3.

[0056] In a specific embodiment, a cover plate 15 is further included. The cover plate 15 is detachably installed on the side of the fan body 2 away from the main air inlet 3.

[0057] In a specific embodiment, a through hole 16 is opened at a position corresponding to the secondary air inlet 14 on the cover plate 15. The through hole 16 penetrates through the cover plate 15 and is communicated with the secondary air inlet 14.

[0058] In a specific embodiment, the outlet ends of the first air duct 501, the second air duct 502, and the third air duct 503 are all communicated with the main air inlet 3 of the fan body 2.

[0059] Embodiment III

[0060] Corresponding to the above embodiments, the present application provides a vehicle, which includes the in-vehicle device as described above, and the in-vehicle device includes an air-cooled heat dissipation structure.

[0061] In this embodiment, the air-cooled heat dissipation structure includes a housing 1 and a fan body 2 installed on the top of the housing 1. A main air inlet 3 is arranged on the bottom surface of the fan body 2, and an air flow gap 11 is formed between the main air inlet 3 and the top surface of the housing 1; a plurality of heat sinks 4 are arranged on the housing 1 around the fan body 2 area, and the air inlet channel 5 and the air outlet channel 6 are formed by arranging a plurality of the heat sinks 4 at intervals. The air inlet channel 5 is communicated with the main air inlet 3 of the fan body 2, and the air outlet channel 6 is communicated with the air outlet 7 of the fan body 2.

[0062] In a specific embodiment, the air inlet channel 5 includes a first air duct 501, a second air duct 502, and a third air duct 503. The first air duct 501 and the second air duct 502 are arranged in parallel and are respectively arranged on opposite sides of the fan body 2. The third air duct 503 is arranged perpendicular to the first air duct 501, and the third air duct 503 and the air outlet channel 6 are respectively arranged on opposite sides of the fan body 2.

[0063] In a specific embodiment, the plane where the air outlet 7 is located is adjacent to and perpendicular to the plane where the main air inlet 3 is located.

[0064] In a specific embodiment, a baffle 12 is connected to the housing 1. The baffle 12 is disposed at the air outlet 7 of the fan body 2, and the position of the air outlet 7 in the depth direction of the housing 1 is higher than that of the baffle 12.

[0065] In a specific embodiment, a separator 13 is disposed in the air outlet passage 6. The separators 13 are distributed at intervals in the heat sink 4, and the horizontal distance between the separator 13 and the air outlet 7 is smaller than the horizontal distance between the heat sink 4 and the air outlet 7.

[0066] In a specific embodiment, a secondary air inlet 14 is further disposed on the fan body 2. The secondary air inlet 14 is disposed on the side wall of the fan body 2 opposite to the main air inlet 3.

[0067] In a specific embodiment, a cover plate 15 is further included. The cover plate 15 is detachably installed on the side of the fan body 2 away from the main air inlet 3.

[0068] In a specific embodiment, a through hole 16 is formed at a position corresponding to the secondary air inlet 14 on the cover plate 15. The through hole 16 penetrates through the cover plate 15 and communicates with the secondary air inlet 14.

[0069] In a specific embodiment, the outlet ends of the first air duct 501, the second air duct 502, and the third air duct 503 are all communicated with the main air inlet 3 of the fan body 2.

[0070] Although the preferred embodiments in the embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they learn the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present invention.

[0071] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. An air-cooled heat dissipation structure, characterized in that: It comprises a shell (1), and a fan body (2) mounted on the top of the shell (1); a main air inlet (3) is arranged on the bottom surface of the fan body (2), and an air flow gap (11) is formed between the main air inlet (3) and the top surface of the shell (1); A plurality of heat sinks (4) are arranged on the shell (1) around the fan body (2), and an air inlet channel (5) and an air outlet channel (6) are formed by the plurality of heat sinks (4) arranged at intervals. The air inlet channel (5) is connected to a main air inlet (3) of the fan body (2), and the air outlet channel (6) is connected to an air outlet (7) of the fan body (2).

2. The air-cooled heat dissipation structure according to claim 1, characterized in that: The air inlet channel (5) comprises a first air channel (501), a second air channel (502) and a third air channel (503); the first air channel (501) and the second air channel (502) are arranged in parallel and respectively on opposite sides of the fan body (2); the third air channel (503) is arranged perpendicular to the first air channel (501), and the third air channel (503) and the air outlet channel (6) are respectively arranged on opposite sides of the fan body (2).

3. The air-cooled heat dissipation structure according to claim 1 or 2, characterized in that: The plane where the air outlet (7) is located is adjacent to the plane where the main air inlet (3) is located and they are perpendicular to each other.

4. The air-cooled heat dissipation structure according to claim 1 or 2, characterized in that: The housing (1) is connected to a baffle (12), the baffle (12) is arranged at the air outlet (7) of the fan body (2), and the position of the air outlet (7) along the depth direction of the housing (1) is higher than the baffle (12).

5. The air-cooled heat dissipation structure according to claim 4, characterized in that: A separator (13) is provided in the air outlet channel (6); the separators (13) are spaced apart in the heat sink (4); and the horizontal distance between the separator (13) and the air outlet (7) is smaller than the horizontal distance between the heat sink (4) and the air outlet (7).

6. The air-cooled heat dissipation structure according to claim 1 or 2, characterized in that: The fan body (2) is also provided with an auxiliary air inlet (14), and the auxiliary air inlet (14) is provided on a side wall of the fan body (2) opposite to the main air inlet (3).

7. The air-cooled heat dissipation structure according to claim 6, characterized in that: It also comprises a cover plate (15), wherein the cover plate (15) is detachably mounted on a side of the fan body (2) away from the main air inlet (3).

8. The air-cooled heat dissipation structure according to claim 7, characterized in that: A through hole (16) is provided at a position corresponding to the cover plate (15) and the auxiliary air inlet (14); the through hole (16) penetrates the cover plate (15) and is in communication with the auxiliary air inlet (14).

9. A vehicle-mounted device, characterized in that: It comprises an air-cooled heat dissipation structure as claimed in any one of claims 1 to 8.

10. A vehicle, characterized in that: The vehicle is equipped with the vehicle-mounted device according to claim 9.

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