Heat dissipation structure and vehicle

Abstract

This utility model provides a heat dissipation structure and vehicle, relating to the field of vehicle manufacturing technology. The structure includes: a heat dissipation housing with a heat dissipation cavity, an inlet and an outlet communicating with the cavity, and a heat dissipation housing for mounting a heating element; and a flow guiding structure installed in the heat dissipation cavity, which, together with the inner wall of the cavity, defines multiple heat dissipation diversion channels. These channels are vertically spaced, and the inlet width of at least one upper heat dissipation diversion channel is greater than the inlet width of at least one lower heat dissipation diversion channel. This heat dissipation structure increases the flow rate of the cooling medium above the heat dissipation cavity, improving the cooling effect throughout the cavity, thereby enhancing the cooling effect on the heating element, ensuring its reliability, improving vehicle driving safety, and offering better performance and wider applicability.

Description

Technical Field

[0001] This utility model relates to the field of vehicle manufacturing technology, and in particular to a heat dissipation structure and a vehicle having the heat dissipation structure. Background Technology

[0002] With the development of the national economy and the continuous improvement of living standards, vehicles are becoming increasingly important in daily life and travel, and vehicle safety is a key consideration during vehicle production. Existing vehicles are equipped with high-power switching power supplies. To prevent heat buildup in power devices under high current and high voltage conditions, which could lead to performance degradation, decreased reliability, or even failure, heat dissipation structures can be installed at the switching transistors. However, existing heat dissipation structures, in order to ensure sufficient heat dissipation area, have relatively deep heat dissipation channels, which prevents effective heat dissipation of the switching transistors located above, affecting their safety and indicating room for improvement. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a heat dissipation structure that is simple in structure, low in installation cost, and can ensure the heat dissipation effect at all points within the heat dissipation cavity, thereby improving the cooling effect on the heating element, ensuring the reliability of the heating element, and thus improving vehicle driving safety.

[0004] The heat dissipation structure according to an embodiment of the present invention includes: a heat dissipation shell, wherein the heat dissipation shell forms a heat dissipation cavity, the heat dissipation shell is provided with an inlet and an outlet communicating with the heat dissipation cavity, and the heat dissipation shell is used to install a heating element; a flow guiding structure, wherein the flow guiding structure is installed in the heat dissipation cavity, the flow guiding structure and the inner wall of the heat dissipation cavity define a plurality of heat dissipation diversion channels, the plurality of heat dissipation diversion channels are distributed vertically at intervals, and the inlet width of at least one heat dissipation diversion channel located above it is greater than the inlet width of at least one heat dissipation diversion channel located below it.

[0005] According to the heat dissipation structure of this utility model embodiment, by setting a flow guiding structure in the heat dissipation cavity to define multiple heat dissipation diversion channels, and setting the inlet width of at least one heat dissipation diversion channel located above it to be greater than the inlet width of at least one heat dissipation diversion channel located below it, the flow rate of the cooling medium above the heat dissipation cavity can be increased, thereby improving the cooling effect at all parts of the heat dissipation cavity, thereby improving the cooling effect on the heat-generating element, ensuring the reliability of the heat-generating element, improving the driving safety of the vehicle, and having a better effect and wider applicability.

[0006] According to some embodiments of the present invention, the heat dissipation structure has a plurality of heat dissipation diversion ribs, which separate a plurality of heat dissipation diversion channels. At least a portion of the inlet end of the heat dissipation diversion rib corresponding to the uppermost heat dissipation diversion channel is configured to extend obliquely from bottom to top along the inlet direction.

[0007] According to some embodiments of the present invention, at least a portion of the inlet end of the plurality of heat dissipation ribs is configured to extend obliquely upward along the inlet direction.

[0008] According to some embodiments of the present invention, the inlet ends of the plurality of heat dissipation ribs are spaced apart along the inlet direction.

[0009] According to some embodiments of the present invention, at least one of the heat dissipation diversion ribs is provided with a first turbulence portion, wherein the first turbulence portion is configured to protrude into the adjacent heat dissipation diversion channel relative to the heat dissipation diversion rib.

[0010] According to some embodiments of the present invention, each of the heat dissipation ribs is provided with the first turbulence portion.

[0011] And / or, the first turbulence section is constructed as a turbulence column;

[0012] And / or, the heat dissipation diversion rib is provided with a plurality of first turbulence portions, and the plurality of first turbulence portions are spaced apart along the length direction of the heat dissipation diversion rib;

[0013] And / or, at least one of the heat dissipation diversion ribs includes a plurality of arc-shaped diversion sections connected in sequence, and the first turbulence part is provided at the connection between two adjacent arc-shaped diversion sections.

[0014] According to some embodiments of the present invention, the heat dissipation structure further includes a flow guide plate, which includes a first plate portion, a second plate portion, and a third plate portion that are bent and connected in sequence. The heat dissipation diversion ribs include a first diversion rib located on the outside of the first plate portion, a second diversion rib located on the inside of the second plate portion, and a third diversion rib located on the outside of the third plate portion. The heat dissipation diversion channel includes a first flow segment defined by the first diversion rib, a second flow segment defined by the second diversion rib, and a third flow segment defined by the third diversion rib.

[0015] According to some embodiments of the heat dissipation structure of the present invention, the cooling medium flow direction of the first flow section is opposite to that of the cooling medium flow direction of the third flow section;

[0016] And / or, one end of the second plate is provided with a first connecting hole and the other end is provided with a second connecting hole, the first connecting hole connecting between the first flow segment and the second flow segment, and the second connecting hole connecting between the second flow segment and the third flow segment.

[0017] According to some embodiments of the present invention, the heat dissipation structure includes an inner shell, an outer shell, and a bottom main board. The inner shell and the outer shell are both connected to the bottom main board. The inner shell is located inside the outer shell. The heat dissipation cavity is formed between the inner shell and the outer shell. The heating element is installed on the outer side of the outer shell.

[0018] This utility model also proposes a vehicle.

[0019] The vehicle according to the embodiments of the present invention is provided with the heat dissipation structure described in any of the above claims.

[0020] The vehicle and the aforementioned heat dissipation structure have the same advantages over existing technologies, which will not be repeated here.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a cross-sectional view of the heat dissipation structure according to an embodiment of the present utility model. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the flow guiding structure according to an embodiment of the present utility model. Figure 1 ;

[0025] Figure 3 This is a schematic diagram of the flow guiding structure according to an embodiment of the present utility model. Figure 2 ;

[0026] Figure 4 This is a cross-sectional view of the heat dissipation structure according to an embodiment of the present utility model. Figure 2 ;

[0027] Figure 5 This is a cross-sectional view of the heat dissipation structure according to an embodiment of the present utility model. Figure 3 ;

[0028] Figure 6 This is a schematic diagram of the heat dissipation structure according to an embodiment of the present utility model.

[0029] Figure label:

[0030] Heat dissipation structure 100,

[0031] Heat sink 1, outer shell 11, inner shell 12, auxiliary heat dissipation channel 121, second airflow deflector 122, heat dissipation cavity 13, bottom main body 14, inlet 15, outlet 16

[0032] The flow guiding structure 2 includes a first plate 21, a second plate 22, a first connecting hole 221, a second connecting hole 222, a third plate 23, a bottom plate 24, a clearance hole 241, a heat dissipation diversion rib 25, a first turbulence section 251, a first diversion rib 252, a second diversion rib 253, a third diversion rib 254, a heat dissipation diversion channel 26, a first flow section 261, a second flow section 262, and a third flow section 263. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.

[0036] Unless otherwise specified, the front-back direction in this application refers to the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction refers to the lateral direction of the vehicle, i.e., the Y direction; and the up-down direction refers to the vertical direction of the vehicle, i.e., the Z direction.

[0037] The following is for reference. Figures 1-6 The heat dissipation structure 100 according to the embodiment of the present utility model is simple in structure and low in installation cost. It can ensure the heat dissipation effect of each part in the heat dissipation cavity 13, thereby improving the cooling effect of the heat-generating element, ensuring the reliability of the heat-generating element, and improving the driving safety of the vehicle.

[0038] like Figures 1-6 As shown, a heat dissipation structure 100 according to an embodiment of the present invention includes: a heat dissipation shell 1 and a flow guiding structure 2.

[0039] The heat dissipation housing 1 forms a heat dissipation cavity 13. The heat dissipation housing 1 is provided with an inlet 15 and an outlet 16 communicating with the heat dissipation cavity 13. The heat dissipation housing 1 is used to install the heating element. The flow guiding structure 2 is installed in the heat dissipation cavity 13. The flow guiding structure 2 and the inner wall of the heat dissipation cavity 13 define a plurality of heat dissipation diversion channels 26. The plurality of heat dissipation diversion channels 26 are distributed vertically at intervals. The inlet width of at least one heat dissipation diversion channel 26 located above it is greater than the inlet width of at least one heat dissipation diversion channel 26 located below it.

[0040] In this embodiment, the heating element is constructed as a MOSFET switch, a semiconductor device used for efficient current switching. Inside the vehicle, the MOSFET switch can perform power management, motor drive, and ignition coil control, improving the vehicle's energy efficiency and reliability. The heat dissipation structure 100 cools the MOSFET switch, ensuring its operational reliability and thus improving vehicle safety.

[0041] Specifically, the heat dissipation structure 100 is provided with a heat dissipation shell 1, which is located on the outermost side of the heat dissipation structure 100. The heat dissipation shell 1 can be formed by die casting, and a heat dissipation cavity 13 is formed inside the heat dissipation shell 1. A cooling medium, such as coolant, flows inside the heat dissipation cavity 13. The heating element can be installed on the outside of the heat dissipation shell 1 by means of connectors or snap-fit. The temperature of the cooling medium is low. The heating element will generate heat when it is running. When the cooling medium flows in the heat dissipation cavity 13, it can exchange heat with the heating element through the heat dissipation shell 1, thereby absorbing the heat of the heating element to cool down the heating element, ensuring the operational stability of the heating element, and thus improving the safety of vehicle use.

[0042] Furthermore, the heat dissipation housing 1 is provided with an inlet 15 and an outlet 16. Both the inlet 15 and the outlet 16 are connected to the heat dissipation cavity 13. The cooling medium can enter the heat dissipation cavity 13 through the inlet 15. After exchanging heat with the heat-generating element in the heat dissipation cavity 13, the cooling medium can flow out of the heat dissipation cavity 13 through the outlet 16 to ensure that the cooling medium in the heat dissipation cavity 13 is always in a low temperature state, thereby ensuring the cooling effect on the heat-generating element.

[0043] Furthermore, the heat dissipation structure 100 also includes a flow guiding structure 2, which can be installed in the heat dissipation cavity 13 by means of snap-fit ​​or other means. Part of the flow guiding structure 2 can contact the inner wall of the heat dissipation cavity 13, thereby defining a heat dissipation diversion channel 26 between the flow guiding structure 2 and the inner wall of the heat dissipation cavity 13. Multiple heat dissipation diversion channels 26 are formed, and the inlet end of multiple heat dissipation diversion channels 26 is connected to the inlet port 15, and the outlet end of multiple heat dissipation diversion channels 26 is connected to the outlet port 16, so that the cooling medium can flow into multiple heat dissipation diversion channels 26 after entering the heat dissipation cavity 13. Multiple heat dissipation elements can be set and installed on the side wall of the heat dissipation shell 1. Multiple heat dissipation elements can be distributed vertically at intervals, and multiple heat dissipation diversion channels 26 are also distributed vertically at intervals, thereby increasing the heat dissipation area and improving the reliability of cooling each heat dissipation element.

[0044] In addition, the inlet width of at least one of the upper heat dissipation diversion channels 26 is set to be greater than the inlet width of at least one of the lower heat dissipation diversion channels 26. That is, the inlet width of at least one of the upper heat dissipation diversion channels 26 is set to be larger. Setting the inlet width of the heat dissipation diversion channel 26 to be larger can ensure the flow rate of the cooling medium flowing into the heat dissipation diversion channel 26, thereby ensuring the reliability of the cooling and temperature reduction of the heat dissipation diversion channel 26.

[0045] In this way, the cooling medium can be prevented from accumulating below the heat dissipation cavity 13 under the action of gravity, which would result in poor heat dissipation effect above the heat dissipation structure 100. This ensures the heat dissipation effect of the heat dissipation structure 100 at all points along the vertical direction, thereby improving the reliability of the heat dissipation structure 100 in cooling multiple heat-generating components and ensuring the safety of vehicle operation.

[0046] According to the heat dissipation structure 100 of this utility model embodiment, by providing a flow guiding structure 2 in the heat dissipation cavity 13 to define a plurality of heat dissipation diversion channels 26, and setting the inlet width of at least one heat dissipation diversion channel 26 located above it to be greater than the inlet width of at least one heat dissipation diversion channel 26 located below it, the flow rate of the cooling medium above the heat dissipation cavity 13 can be increased, thereby improving the cooling effect at all parts of the heat dissipation cavity 13, thereby improving the cooling effect on the heat-generating element, ensuring the reliability of the heat-generating element, improving the driving safety of the vehicle, and having a better performance and a wider range of applications.

[0047] In some embodiments, the flow guiding structure 2 has a plurality of heat dissipation diversion ribs 25, which space out a plurality of heat dissipation diversion channels 26. At least a portion of the inlet end of the heat dissipation diversion rib 25 corresponding to the uppermost heat dissipation diversion channel 26 is configured to extend obliquely from bottom to top along the inlet direction.

[0048] Specifically, the flow guiding structure 2 is disposed within the heat dissipation cavity 13, and as follows: Figures 1-3 As shown, the flow guiding structure 2 is provided with heat dissipation diversion ribs 25. Multiple heat dissipation diversion ribs 25 can be provided, and the multiple heat dissipation diversion ribs 25 are distributed at intervals along the vertical direction, thereby allowing multiple heat dissipation diversion channels 26 to be defined by the multiple heat dissipation diversion ribs 25. That is, the heat dissipation diversion channels 26 are formed between two adjacent heat dissipation diversion ribs 25, so that the multiple heat dissipation diversion channels 26 are also distributed at intervals along the vertical direction. The structure is simple and the installation cost is low.

[0049] Furthermore, multiple heat dissipation diversion channels 26 are distributed vertically at intervals, and at least part of the inlet end of the heat dissipation diversion rib 25 corresponding to the uppermost heat dissipation diversion channel 26 is constructed to extend obliquely from bottom to top along the inlet direction, so that the height of the end of the heat dissipation diversion rib 25 near the inlet 15 is lower, and the height of the heat dissipation diversion rib 25 gradually increases along the inlet direction, so that the heat dissipation diversion channels 26 above the heat dissipation diversion rib 25 also exhibit this distribution trend. This allows the cooling medium to flow to the inlet end of the heat dissipation diversion channel 26 after entering the heat dissipation cavity 13 through the inlet 15, and the heat dissipation diversion rib 25 can guide the cooling medium. The lower height of the inlet end of the heat dissipation diversion rib 25 corresponding to the uppermost heat dissipation diversion channel 26 facilitates the flow of the cooling medium along the heat dissipation diversion rib 25 into the corresponding heat dissipation diversion channel 26, thereby ensuring the flow rate of the cooling medium in the upper heat dissipation diversion channel 26.

[0050] In this way, the flow rate of the cooling medium in the upper heat dissipation diversion channel 26 can be guaranteed, and the cooling medium is prevented from being transported through the lower heat dissipation diversion channel 26 under the action of gravity. This ensures the cooling effect in all parts of the heat dissipation cavity 13, thereby improving the reliability of cooling the heat-generating elements set outside the heat dissipation shell 1.

[0051] In some embodiments, at least a portion of the inlet ends of the plurality of heat dissipation ducts 25 are configured to extend obliquely upward along the inlet direction.

[0052] Specifically, the flow guiding structure 2 is provided with multiple heat dissipation diversion ribs 25. These ribs can divert the cooling medium flowing into the heat dissipation cavity 13, and the multiple ribs 25 can guide the cooling medium into multiple heat dissipation diversion channels 26, thereby improving the heat dissipation effect at various points of the heat dissipation structure 100. Figures 1-3 As shown, at least a portion of the inlet end of the plurality of heat dissipation diversion ribs 25 is configured to extend obliquely upward along the inlet direction, that is, the height of at least a portion of the inlet end of the plurality of heat dissipation diversion ribs 25 is set to be relatively low.

[0053] Furthermore, when the cooling medium enters the heat dissipation cavity 13, it will converge at the bottom of the heat dissipation cavity 13 under the action of gravity. The height of the inlet end of the multiple heat dissipation diversion ribs 25 is set to be relatively low, so that the cooling medium can flow along each heat dissipation diversion rib 25 after entering the heat dissipation cavity 13, so as to guide the cooling medium to the heat dissipation diversion channels 26 at different heights, thereby ensuring the heat dissipation effect at all parts of the heat dissipation structure 100, and ensuring the reliability of heat dissipation for the heat-generating components.

[0054] In some embodiments, the inlet ends of the plurality of heat dissipation ducts 25 are spaced apart along the inlet direction.

[0055] Specifically, such as Figures 1-2 As shown, the end of the multiple heat dissipation diversion ribs 25 near the inlet 15 is the inlet end. The inlet end is constructed to extend obliquely from bottom to top along the inlet direction, and the inlet ends of the multiple heat dissipation diversion ribs 25 are spaced apart along the inlet direction, so that there is a gap between the inlet ends of two adjacent heat dissipation diversion ribs 25, thereby allowing the cooling medium to enter the corresponding heat dissipation diversion channel 26 from the gap between the inlet ends of two adjacent heat dissipation diversion ribs 25.

[0056] And such as Figures 1-2 As shown, the inlet end of the uppermost heat dissipation radiator 25 is located close to the inlet 15, while the inlet end of the lowermost heat dissipation radiator 25 is located away from the inlet 15. The inlet ends of the remaining heat dissipation radiators 25 are also arranged alternately in the inlet direction from top to bottom. This ensures that the cooling medium first flows into the uppermost heat dissipation radiator channel 26, while the remaining cooling medium can still flow downwards under the action of gravity to enter each heat dissipation radiator channel 26, ensuring the flow rate of the cooling medium in each heat dissipation radiator channel 26, thereby ensuring the heat dissipation effect of the heat dissipation structure 100.

[0057] In some embodiments, at least one heat dissipation rib 25 is provided with a first turbulence portion 251, which is configured to protrude into the adjacent heat dissipation channel 26 relative to the heat dissipation rib 25.

[0058] Specifically, the heat dissipation ribs 25 are configured as multiple, and as follows: Figures 1-3 As shown, at least one heat dissipation duct 25 is provided with a first turbulence portion 251. One, two or more heat dissipation ducts 25 can be provided with a first turbulence portion 251. The first turbulence portion 251 is constructed to protrude from the heat dissipation duct 25 toward the adjacent heat dissipation channel 26, thereby making the inner wall of the heat dissipation channel 26 have a protrusion. When the cooling medium flows along the heat dissipation channel 26, when it flows through the first turbulence portion 251, the flow direction of the cooling medium will change, thereby turbulenting the cooling medium to reduce the flow rate of the cooling medium. This allows the cooling medium to fully exchange heat with the heat-generating element in the heat dissipation channel 26, improving the heat dissipation effect on the heat-generating element.

[0059] In some embodiments, each heat dissipation rib 25 is provided with a first turbulence portion 251.

[0060] Specifically, such as Figures 1-3 As shown, multiple heat dissipation ribs 25 are provided, and each heat dissipation rib 25 is provided with a first turbulence part 251, so that the inner walls of the upper and lower sides of each heat dissipation channel 26 are formed with a first turbulence part 251 protruding into the heat dissipation channel 26. In this way, when the cooling medium flows into each heat dissipation channel 26, the first turbulence part 251 turbulents the cooling medium to reduce the flow rate of the cooling medium, so that the cooling medium can fully exchange heat with the heat-generating element in the heat dissipation channel 26. Moreover, since multiple heat dissipation ribs 25 are provided with first turbulence parts 251, the heat dissipation effect of multiple parts of the heat dissipation structure 100 can be improved, ensuring the reliability of use.

[0061] In other embodiments, the first turbulence portion 251 is configured as a turbulence column.

[0062] Specifically, such as Figure 1 As shown, the first turbulence section 251 is constructed as a turbulence column. The radial dimension of the turbulence column is set to be greater than the width of the heat dissipation diversion rib 25, so that the turbulence column can protrude into the two adjacent heat dissipation diversion channels 26 to turbulent the cooling medium in the two adjacent heat dissipation diversion channels 26. The turbulence column is constructed as a cylinder, so that the part of the turbulence column protruding into the heat dissipation diversion channel 26 is an arc-shaped protrusion, which can turbulent the cooling medium while avoiding generating large resistance to the cooling medium, thereby reducing energy consumption.

[0063] In addition, the multiple heat dissipation diversion ribs 25 of the flow guiding structure 2 and the inner wall of the heat dissipation cavity 13 can define multiple heat dissipation diversion channels 26. That is, the heat dissipation diversion ribs 25 can be supported between the flow guiding structure 2 and the inner wall of the heat dissipation cavity 13, and the turbulence column can increase the support area of ​​the heat dissipation diversion ribs 25, thereby improving the structural strength of the heat dissipation structure 100 and improving the reliability of use.

[0064] In other embodiments, the heat dissipation duct 25 is provided with a plurality of first turbulence portions 251, which are spaced apart along the length of the heat dissipation duct 25.

[0065] Specifically, the heat dissipation rib 25 is provided with a first turbulence section 251, and as shown in the figure. Figures 1-3 As shown, each heat dissipation rib 25 is provided with multiple first turbulence portions 251, that is, each heat dissipation rib 25 may be provided with two, three or four first turbulence portions 251. The multiple first turbulence portions 251 are spaced apart along the length direction of the heat dissipation rib 25, so that when the cooling medium flows along the heat dissipation channel 26, it can flow through multiple first turbulence portions 251, thereby allowing the multiple first turbulence portions 251 to turbulent the cooling medium multiple times, so as to improve the heat dissipation effect at various points along the length direction of the heat dissipation channel 26 and ensure the reliability of the heat-generating element.

[0066] In other embodiments, at least one heat dissipation duct 25 includes a plurality of arc-shaped duct sections connected in sequence, and a first turbulence portion 251 is provided at the connection between two adjacent arc-shaped duct sections.

[0067] Specifically, multiple heat dissipation ribs 25 are provided, and at least one of the multiple heat dissipation ribs 25 includes multiple sequentially connected arc-shaped diversion segments. That is, one, two or more of the multiple heat dissipation ribs 25 can be configured to include multiple sequentially connected arc-shaped diversion segments. In this embodiment, each heat dissipation rib 25 includes multiple sequentially connected arc-shaped diversion segments, thereby making each heat dissipation rib 25 constructed as a wave-shaped structure. When the cooling medium flows into the heat dissipation diversion channel 26, the heat dissipation rib 25 corresponding to the heat dissipation diversion channel 26 can change the flow direction of the cooling medium multiple times, thereby turbulenting the cooling medium to improve the heat exchange effect of the cooling medium and ensure the reliability of cooling the heat-generating element.

[0068] In some embodiments, the flow guiding structure 2 further includes a flow guiding plate, which includes a first plate portion 21, a second plate portion 22, and a third plate portion 23 that are bent and connected in sequence. The heat dissipation diversion rib 25 includes a first diversion rib 252 located outside the first plate portion 21, a second diversion rib 253 located inside the second plate portion 22, and a third diversion rib 254 located outside the third plate portion 23. The heat dissipation diversion channel 26 includes a first flow segment 261 defined by the first diversion rib 252, a second flow segment 262 defined by the second diversion rib 253, and a third flow segment 263 defined by the third diversion rib 254.

[0069] Specifically, the flow guiding structure 2 is also equipped with a flow guiding plate, and as shown in the figure. Figures 2-3 As shown, the guide plate is provided with a first plate portion 21, a second plate portion 22, and a third plate portion 23. The first plate portion 21, the second plate portion 22, and the third plate portion 23 are bent and connected in sequence. Each of the first plate portion 21, the second plate portion 22, and the third plate portion 23 is provided with a plurality of heat dissipation diversion ribs 25 that are spaced apart in the vertical direction. That is, each of the first plate portion 21, the second plate portion 22, and the third plate portion 23 forms a plurality of heat dissipation diversion channels 26 that are spaced apart in the vertical direction. The heat dissipation diversion ribs 25 include a first diversion rib 252 and a second diversion rib. The flow guiding structure 2, consisting of 253 and 254, is installed inside the heat dissipation cavity 13. The first plate portion 21, the second plate portion 22, and the third plate portion 23 are bent and connected in sequence. The first flow guiding rib 252 and the inner wall of the heat dissipation cavity 13 define the first flow section 261, the second flow guiding rib 253 and the inner wall of the heat dissipation cavity 13 define the second flow section 262, and the third flow guiding rib 254 and the inner wall of the heat dissipation cavity 13 define the third flow section 263. This increases the heat dissipation area of ​​the heat dissipation structure 100 and improves the heat dissipation effect at various points of the heat dissipation structure 100.

[0070] Furthermore, the first flow section 261 is formed on the outer side of the first plate portion 21, the second flow section 262 is formed on the inner side of the second plate portion 22, and the third flow section 263 is formed on the outer side of the third plate portion 23. That is, heat dissipation diversion ribs 25 are provided on the outer side of the first plate portion 21, the inner side of the second plate portion 22, and the outer side of the third plate portion 23. Figure 4 As shown, the lengths of the first plate portion 21 and the second plate portion 22 are set to be relatively long, and when the heating element is installed, it can also be installed on the outside of the first plate portion 21 and the second plate portion 22, thereby increasing the heat dissipation area of ​​the heating element.

[0071] Furthermore, the first flow section 261 is formed on the outer side of the first plate portion 21, and the third flow section 263 is formed on the outer side of the third plate portion 23, thereby shortening the distance between the cooling medium and the heating element in the first flow section 261 and the second flow section 262, so as to improve the heat exchange effect of the cooling medium and ensure the reliability of the heating element.

[0072] In some embodiments, the cooling medium flow direction of the first flow section 261 is opposite to that of the cooling medium flow direction of the third flow section 263.

[0073] Specifically, the first flow section 261 is formed on the outer side of the first plate portion 21, and the inlet end of the first flow section 261 is located near the inlet 15, so that the cooling medium can flow along the first flow section 261 after entering the heat dissipation cavity 13, and then flow sequentially to the second flow section 262 and the third flow section 263. The outlet end of the third flow section 263 is located near the outlet 16, and the flow direction of the cooling medium in the first flow section 261 is opposite to that in the third flow section 263, i.e. Figure 4 As shown, the first flow segment 261 and the third flow segment 263 are arranged in parallel with a gap between them, and the second flow segment 262 is connected between the first flow segment 261 and the third flow segment 263. This can reduce the size of the heat dissipation structure 100 in the same direction and improve the integration of the heat dissipation structure 100, thereby improving the lightweighting of the vehicle.

[0074] In some other embodiments, one end of the second plate portion 22 is provided with a first connecting hole 221 and the other end is provided with a second connecting hole 222. The first connecting hole 221 connects between the first flow section 261 and the second flow section 262, and the second connecting hole 222 connects between the second flow section 262 and the third flow section 263.

[0075] Specifically, such as Figures 2-3 As shown, one end of the second plate portion 22 is provided with a first connecting hole 221 and the other end is provided with a second connecting hole 222. That is, the first connecting hole 221 is provided at the connection between the first plate portion 21 and the second plate portion 22, and the second connecting hole 222 is provided at the connection between the second plate portion 22 and the third plate portion 23. The first flow section 261 is formed on the outer side of the first plate portion 21, and the second flow section 262 is formed on the inner side of the second plate portion 22. The first connecting hole 221 can connect between the first flow section 261 and the second flow section 262. The third flow section 263 is formed on the outer side of the third plate portion 23, and the second connecting hole 222 can connect between the second flow section 262 and the third flow section 263, thereby ensuring the reliability of the cooling medium flow.

[0076] Furthermore, multiple first connecting holes 221 and multiple second connecting holes 222 can be provided. Multiple first connecting holes 221 and multiple second connecting holes 222 are distributed vertically at intervals. Multiple first connecting holes 221, multiple second connecting holes 222 and multiple heat dissipation diversion channels 26 are provided in a one-to-one correspondence, so that each heat dissipation diversion channel 26 is provided with a corresponding first connecting hole 221 and second connecting hole 222, thereby ensuring the reliability of each heat dissipation diversion channel 26.

[0077] In some embodiments, the heat dissipation housing 1 includes an inner housing 12, an outer housing 11, and a bottom mainboard 14. The inner housing 12 and the outer housing 11 are both connected to the bottom mainboard 14. The inner housing 12 is located inside the outer housing 11. A heat dissipation cavity 13 is formed between the inner housing 12 and the outer housing 11. A heat-generating element is installed on the outside of the outer housing 11.

[0078] Specifically, such as Figure 6 As shown, the heat dissipation housing 1 is provided with an inner housing 12, an outer housing 11 and a bottom main body 14. The inner housing 12 is located inside the outer housing 11 and connected to the outer housing 11, thereby defining a heat dissipation cavity 13 between the inner housing 12 and the outer housing 11. The flow guiding structure 2 is installed in the heat dissipation cavity 13 and is located between the inner housing 12 and the outer housing 11. The heat dissipation diversion rib 25 of the first plate 21 defines a first flow section 261 between the outer housing 11, the heat dissipation diversion rib 25 of the second plate 22 defines a second flow section 262 between the inner housing 12, and the heat dissipation diversion rib 25 of the third plate 23 defines a third flow section 263 between the outer housing 11. The heating element is installed on the outside of the outer housing 11, and the position of the heating element corresponds to the first plate 21 and the third plate 23 to ensure the heat dissipation effect of the heating element.

[0079] Furthermore, the bottom motherboard body 14 can be connected to the bottom of the inner shell 12 and the outer shell 11 by means of snap-fit ​​or other methods to seal the heat dissipation cavity 13, and as... Figure 5 As shown, an auxiliary heat dissipation channel 121 is defined between the bottom of the inner shell 12 and the bottom main board body 14. Part of the cooling medium entering the heat dissipation cavity 13 from the inlet 15 can flow into the heat dissipation diversion channel 26, and another part can flow into the auxiliary heat dissipation channel 121, so as to avoid the overall temperature of the heat dissipation structure 100 from rising and improve the heat dissipation effect of the heat dissipation structure 100.

[0080] Furthermore, the bottom of the inner shell 12 has multiple downward-extending second turbulence portions 122, which can turbulent the cooling medium in the auxiliary heat dissipation channel 121 to improve the cooling effect. In addition, the flow guiding structure 2 also includes a base plate portion 24, which can be completely connected to the first plate portion 21 or bent to be connected to the third plate portion 23. The base plate portion 24 has a clearance hole 241, and the second turbulence portions 122 can extend into the clearance hole 241 to limit the flow guiding structure 2 and ensure the installation reliability of the flow guiding structure 2.

[0081] This utility model also proposes a vehicle.

[0082] The vehicle according to the embodiments of the present invention is provided with a heat dissipation structure 100 as described above.

[0083] According to the vehicle of this utility model embodiment, a heat dissipation structure 100 is provided. The heat dissipation structure 100 defines a plurality of heat dissipation diversion channels 26 by providing a flow guiding structure 2 in the heat dissipation cavity 13. The inlet width of at least one heat dissipation diversion channel 26 located at the top is set to be greater than the inlet width of at least one heat dissipation diversion channel 26 located below it. This can increase the flow rate of the cooling medium above the heat dissipation cavity 13, thereby improving the cooling effect at various points in the heat dissipation cavity 13. This can further improve the cooling effect on the heat-generating elements, ensure the reliability of the heat-generating elements, improve the driving safety of the vehicle, and have a better performance and wider applicability.

[0084] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0085] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A heat dissipating structure, characterized by comprising: include: A heat dissipation housing (1) is provided with a heat dissipation cavity (13), and the heat dissipation housing (1) is provided with an inlet (15) and an outlet (16) communicating with the heat dissipation cavity (13). The heat dissipation housing (1) is used to install a heating element. A flow guiding structure (2) is installed in the heat dissipation cavity (13). The flow guiding structure (2) and the inner wall of the heat dissipation cavity (13) define a plurality of heat dissipation diversion channels (26). The plurality of heat dissipation diversion channels (26) are distributed vertically at intervals. The inlet width of at least one heat dissipation diversion channel (26) located above is greater than the inlet width of at least one heat dissipation diversion channel (26) located below it.

2. The heat dissipating structure according to claim 1, wherein The flow guiding structure (2) has a plurality of heat dissipation diversion ribs (25), which separate the plurality of heat dissipation diversion channels (26). At least part of the inlet end of the heat dissipation diversion rib (25) corresponding to the uppermost heat dissipation diversion channel (26) is configured to extend obliquely from bottom to top along the inlet direction.

3. The heat dissipating structure according to claim 2, wherein At least a portion of the inlet end of each of the plurality of heat dissipation ducts (25) is configured to extend obliquely upward along the inlet direction.

4. The heat dissipating structure according to claim 3, wherein The inlet ends of the multiple heat dissipation ribs (25) are spaced apart along the inlet direction.

5. The heat dissipating structure according to claim 2, wherein At least one of the heat dissipation diversion ribs (25) is provided with a first turbulence portion (251), the first turbulence portion (251) being configured to protrude into the adjacent heat dissipation diversion channel (26) relative to the heat dissipation diversion rib (25).

6. The heat dissipating structure according to claim 5, wherein Each of the heat dissipation ribs (25) is provided with the first turbulence portion (251); And / or, the first turbulence section (251) is configured as a turbulence column; And / or, the heat dissipation diversion rib (25) is provided with a plurality of first turbulence portions (251), and the plurality of first turbulence portions (251) are spaced apart along the length direction of the heat dissipation diversion rib (25); And / or, at least one of the heat dissipation diversion ribs (25) includes a plurality of arc-shaped diversion sections connected in sequence, and the first turbulence part (251) is provided at the connection of two adjacent arc-shaped diversion sections.

7. The heat dissipating structure according to claim 2, wherein The flow guiding structure (2) further includes a flow guiding plate, which includes a first plate portion (21), a second plate portion (22), and a third plate portion (23) that are bent and connected in sequence. The heat dissipation diversion rib (25) includes a first diversion rib (252) located outside the first plate portion (21), a second diversion rib (253) located inside the second plate portion (22), and a third diversion rib (254) located outside the third plate portion (23). The heat dissipation diversion channel (26) includes a first flow segment (261) defined by the first diversion rib (252), a second flow segment (262) defined by the second diversion rib (253), and a third flow segment (263) defined by the third diversion rib (254).

8. The heat dissipating structure according to claim 7, wherein The cooling medium flow direction of the first flow section (261) is opposite to that of the cooling medium flow direction of the third flow section (263); And / or, one end of the second plate portion (22) is provided with a first connecting hole (221) and the other end is provided with a second connecting hole (222), the first connecting hole (221) is connected between the first flow segment (261) and the second flow segment (262), and the second connecting hole (222) is connected between the second flow segment (262) and the third flow segment (263).

9. The heat dissipating structure according to claim 1, wherein The heat dissipation housing (1) includes an inner housing (12), an outer housing (11) and a bottom main body (14). The inner housing (12) and the outer housing (11) are both connected to the bottom main body (14). The inner housing (12) is located inside the outer housing (11). The heat dissipation cavity (13) is formed between the inner housing (12) and the outer housing (11). The heating element is installed on the outside of the outer housing (11).

10. A vehicle characterized by comprising: The heat dissipation structure (100) as described in any one of claims 1-9 is provided.

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