Vehicle and electronic assemblies having cooling assemblies with convergent and divergent channels

Abstract

Vehicle and electronic assemblies having a cooling assembly with convergence and divergence channels. [Solution] In one embodiment, a cooling assembly including a plate includes an array of internal fins, a surface, and a plurality of openings, the array of internal fins defining an array of internal channels, and the plurality of angled fins extending from the plate. The plurality of angled fins define a plurality of channels, including alternately arranged converging channels and diverging channels. The array of internal channels is fluidly coupled to the plurality of channels defined by the plurality of angled fins.

Description

Background Art

[0001] Heat-generating components such as power electronic devices may require removal of heat flux so as to operate below their maximum operating temperatures. Cooling devices such as heat sinks can be used to transfer the heat flux from the heat-generating component to the surrounding air. Convection can be used to flow an air stream through an array of fins of the heat sink. The array of fins increases the surface area exposed to the air stream, thereby increasing the transfer of heat to the air stream.

[0002] Vehicles such as electric vehicles like automotive trucks and airplanes may include an inverter circuit having power electronic devices that generate a lot of flux to be removed. The movement of the vehicle through the ambient environment creates a natural air stream around the vehicle as the vehicle moves. However, including fins of a heat sink on the vehicle body can increase the drag force on the vehicle, thereby reducing the efficiency of the vehicle.

[0003] Therefore, an alternative cooling assembly for cooling the heat-generating component may be desired.

Summary of the Invention

[0004] In one embodiment, a cooling assembly including a plate includes an array of internal fins, a surface, and a plurality of openings, the array of internal fins defining an array of internal channels, and a plurality of angled fins extending from the plate. The plurality of angled fins define a plurality of channels including converging channels and diverging channels provided alternately. The array of internal channels is fluidly coupled to the plurality of channels defined by the plurality of angled fins.

[0005] In another embodiment, the electronic assembly includes a plate having an array of internal fins, a first surface, a second surface, and a plurality of openings. The array of internal channels defines an array of internal channels and a plurality of angled fins extending from the first surface of the plate. The plurality of angled fins define a plurality of channels, including alternately arranged converging and diverging channels, and the array of internal channels is fluidly coupled to the plurality of channels defined by the plurality of angled fins. The electronic assembly further includes one or more electronic devices coupled to the second surface of the plate.

[0006] In another embodiment, the vehicle includes a body. The vehicle also includes an electronic assembly coupled to the body, the electronic assembly including an array of internal fins and a plate having a first surface, a second surface and a plurality of openings. The array of internal fins defines an array of internal channels and a plurality of angled fins extending from the first surface of the plate. The plurality of angled fins define a plurality of channels including alternately arranged converging and diverging channels, and the array of internal channels is fluidly coupled to the plurality of channels defined by the plurality of angled fins. The vehicle further includes one or more electronic devices coupled to the second surface of the plate. [Brief explanation of the drawing]

[0007] To facilitate the identification of any particular element or operation, the most significant digit or number in the reference number indicates the figure number in which the element is first introduced. [Figure 1A] Figure 1A shows an isometric view of an example of a cooling assembly according to one or more embodiments described and illustrated herein. [Figure 1B] Figure 1B shows a top view of an example of a cooling assembly according to one or more embodiments described and illustrated herein. [Figure 1C] Figure 1C shows a side view of an example of a cooling assembly according to one or more embodiments described and illustrated herein. [Figure 2]Figure 2 shows another top view of an example of a cooling assembly according to one or more embodiments described and illustrated herein. [Figure 3] Figure 3 shows a partial isometric view of a cooling assembly according to one or more embodiments described and illustrated herein. [Figure 4] Figure 4 shows simulation results illustrating high and low pressure for an example of a cooling assembly according to one or more embodiments described and illustrated herein. [Figure 5] Figure 5 shows a top view of a plate of an example of a cooling assembly having a chevron pattern on the internal fins, according to one or more embodiments described and illustrated herein. [Figure 6] Figure 6 shows an example of a vehicle having multiple cooling assemblies according to one or more embodiments described and illustrated herein. [Modes for carrying out the invention]

[0008] Embodiments of this disclosure reduce pressure loss and drag generated by a heat sink to cool heat-generating components by providing angled fins that are generally positioned in the direction of airflow, and reroute a portion of the air below the plate surface to receive additional thermal energy from the internal fins. A cooling assembly for cooling an assembly described herein has low pressure loss by utilizing angled fins that create a pressure difference between alternating convergent and divergent channels. More specifically, ambient air is drawn to the angled fins and allowed to flow through the convergent and divergent channels. The convergent channels create high-pressure regions, while the divergent channels create low-pressure regions. These high-pressure and low-pressure regions are fluidly coupled to an internal heat sink having an array of internal fins defining an array of internal channels. The pressure difference is utilized to direct a portion of the air into the internal channels. This rerouted air flows through the internal channels from the convergent channels and then exits through the divergent channels. The rerouted air is carried near the heat-generating components being cooled, where it is heated, thereby removing heat from the internal fins. The heated rerouted air then flows out from the internal heatsink on the diverging channel side, joining the freestream of air flowing through the diverging channel and exiting from the rear of the cooling assembly.

[0009] When integrated into the surface of a main body (e.g., a vehicle) and exposed to airflow (from a fan or from the movement of the main body itself), the cooling assembly of the present disclosure utilizes a novel streamlined external manifold that directs the airflow to an internal heatsink that is "hidden" from the external flow, thereby eliminating the need for the entire heatsink to be directly exposed to the external airflow, which can increase the drag on the system.

[0010] Various embodiments of the cooling assembly are described in detail below.

[0011] Referring to Figure 1A, an example of a cooling assembly 102 is shown in isometric view. The cooling assembly 102 includes a plate 112 having an array of internal fins 110. The internal fins 110 may be parallel to each other and extend along one axis. In other embodiments, the internal fins 110 may not be parallel to each other. The array of internal fins 110 defines an array of internal channels 162 through which rerouted air 116 flows, as will be described in detail below.

[0012] The plate 112 has a heat-receiving surface 138 and a cooling surface 140. The arrangement of internal fins 110 extends between the heat-receiving surface 138 and the cooling surface 140. Therefore, the arrangement of internal channels 136 is located between the heat-receiving surface 138 and the cooling surface 140. The height of the arrangement of internal fins 110 and the resulting distance between the heat-receiving surface 138 and the cooling surface 140 are not limited by this disclosure and may depend on the specific application.

[0013] The plate 112 may be manufactured from any suitable thermally conductive material, including but not limited to aluminum and copper. The heat-receiving surface 138 is configured to be bonded to one or more heat-generating components, such as the first heat-generating component 120 and the second heat-generating component 142 as shown in Figure 1C. It should be understood that one or more heat-generating components may be used. The heat-generating components are thermally bonded to the heat-receiving surface 138 by any suitable means, including but not limited to thermal paste, soldering, sintering, or brazing.

[0014] A heat-generating component can be any component that requires cooling. As a non-limiting example, a heat-generating component could be a power electronic device, such as a power switching device used in an inverter circuit for use in electric vehicles. Power electronic devices may include, but are not limited to, insulated-gate bipolar transistors (IGBTs), metal-oxide-semiconductor field-effect transistors (MOSFETs), power transistors, and power diodes.

[0015] The cooling surface 140 of the plate 112 is opposite to the heat-receiving surface 138 and is operable to receive air 114 generated by one or more fans or propellers (not shown) or by the movement of the cooling assembly 102 through the surrounding environment.

[0016] The cooling assembly 102 further includes a plurality of angled fins 104 extending from the cooling surface 140. The angled fins 104 are angled such that they are non-orthogonal to the exit edge 144 of the plate. The angled fins 104 define alternating convergent channels 108 and divergent channels 118. Thus, the convergent channels 108 are adjacent to the divergent channels 118. In the convergent channels 108, the distance between two angled fins 104 decreases in the direction of the air 114. In the divergent channels 118, the distance between two angled fins 104 increases in the direction of the air 114. Each individual angled fin can define both the convergent channels 108 and the divergent channels 118. The angled fins 104 are made of a thermally conductive material and may have any height. As a non-limiting example, the angled fins 104 may be made of aluminum or copper.

[0017] Referring to Figures 1B and 1C, air 114 flows through both the converging channel 108 and the diverging channel 118. The airflow 114 can be generated by a fan, propeller, or other device. The airflow 114 can also be generated by a cooling assembly 102 moving through the surrounding environment. In a non-limiting example, the cooling assembly 102 may be attached to a component of a moving vehicle such as a car, aircraft, or vertical take-off and landing (VTOL) vehicle. The air 114 passes through the converging channel 108 and the diverging channel 118 and then through the cooling assembly 102.

[0018] The gap between adjacent angled fins 104 allows air 114 to flow both through the converging channel 108 and the diverging channel 118. Because of the gap between adjacent angled fins 104, air 114 is not forced to flow through the internal channel 136 by blocking the outlet of the converging channel 108. Rather, air can flow through the converging channel 108 and exit to the other side of the cooling assembly 102. However, due to the converging shape, approaching air experiences higher flow resistance in the converging channel 108 than in the diverging channel 118. This causes some of the approaching air to bypass the converging channel 108 and instead flow through the diverging channel 118, where the flow resistance is lower. This redistribution of airflow results in locally lower flow rates and higher static pressure in the converging channel 108, and locally higher flow rates and lower static pressure in the diverging channel 118. Overall, this results in a large pressure difference between adjacent converging channels 108 and diverging channels 118.

[0019] The cooling surface 140 of the plate 112 exposes the internal channel 136 through openings in the converging channel 108 and the diverging channel 118. As shown in Figures 1B and 2, the internal channel 136 is exposed by a full opening 148 in the converging channel 108 and partially exposed by a partial opening 146 in the diverging channel 118. Thus, the internal channel 136 is partially blocked by the cooling surface 140 of the plate 112. In the illustrated embodiment, the partial opening 146 is rectangular in shape, but the embodiment is not limited thereto. The full opening 148 in the diverging channel 118 facilitates the flow of air 114 into the internal channel 136 of the plate 112.

[0020] The converging channel 108 and the diverging channel 118 mainly act as manifolds and use the pressure difference created between the converging channel 108 and the diverging channel 118 to "pump" a portion of the air 114 into the internal channel 136 within the plate 112. The mechanism used to create the pressure difference for pumping air into the internal heat sink is based on Bernoulli's principle, which shows that increasing the velocity of a fluid decreases its static pressure and decreasing its velocity has the opposite effect. Referring to FIG. 1B, a portion of the incoming air passes through the diverging channel 118 and a portion of the incoming air 114 passes through the converging channel 108. Due to the pressure difference, a portion of the air 114 passes through the internal channel 136 of the plate 112. The converging channel 108 creates a higher flow resistance than the diverging channel 118. This reduces the velocity of the air in the converging channel 108, causing a portion of the air to bypass the converging channel 108 and instead flow into the diverging channel 118. This redistribution of air at the inlet of the manifold reduces the air flow velocity in the converging channel 108 and increases the flow velocity in the diverging channel 118. This has the effect of increasing the static pressure in the region of the converging channel 108 while decreasing the static pressure in the region of the diverging channel 118. Thus, a large pressure difference is created between the converging channel 108 and the diverging channel 118, and such a pressure difference can be utilized to pump a portion of the air through the internal channel 136.

[0021] FIG. 1C shows how the air 116 rerouted within the converging channel 108 is directed downward into the internal channel 136, passes through the internal fins 110, and receives a heat flux from one or more first heat-generating components 120 (e.g., power electronics). The rerouted air 116 then flows upward into the diverging channel 118 and can exit the cooling assembly 102.

[0022] An example of the cooling assembly 102, which is a component of the electronic assembly 100, includes additional straight fins 106 that are downstream of the angled fins 104. The straight fins 106 can be included to cool a second heat-generating component 142, which can be an additional heat-generating component that does not require the removal of as much heat flux as the first heat-generating component. For example, the second heat-generating component 142 can be gate drive electronics for controlling a power electronics device that defines the first heat-generating component 120. In some embodiments, it should be understood that no additional straight fins 106 are provided.

[0023] Note that the bypass of the air 114 around the manifold defined by the angled fins 104 cannot be avoided. Therefore, the pressure loss across the cooling assembly 102 should be minimized to reduce the bypass. In embodiments of the present disclosure, the pressure loss across the cooling assembly 102 is in the range of 100 Pa to 200 Pa, including the endpoints. However, the shape and configuration of the manifold defined by the cooling assembly 102 can result in different pressure losses depending on the end use.

[0024] Furthermore, since the internal heat sink defined by the internal fins 110 of the plate is below the cooling surface 140, the cooling assembly 102 has low resistance characteristics compared to conventional heat sinks, which is beneficial in aerospace applications.

[0025] FIG. 2 is a top view of an example of the cooling assembly 102 of FIG. 1A. The incoming cold air 114 is routed to pass through both the converging channel 108 and the diverging channel 118 and flow in and out of the internal channel 136. The warmed air then exits the converging channel 108 and the diverging channel 118. As described above, the internal channel 136 is fully exposed within the converging channel 108 to facilitate feeding the air 114 into the internal channel 136. The internal channel 136 is partially exposed within the diverging channel 118 by the partial opening 146 such that the cooling surface 140 of the plate partially covers the internal channel 136.

[0026] Each angled fin 104 is angled so as to be non-orthogonal to the edges of the plate 112, such as the exit edge 144. The angled fins 104 define the converging channel 108 and the diverging channel 118.

[0027] Figure 3 is a partial isometric view of the cooling assembly 102, illustrating the path taken by the rerouted air 116 as it is rerouted into the internal channel 136. The incoming air 114 passes through the converging channel 108, thereby flowing alongside the converging side 124 of the angled fins 104. The pressure difference between the converging channel 108 and the adjacent diverging channel 118 causes the cold rerouted air 128 to flow downward into the internal channel 136, which is defined by the internal fins 110. As the cold rerouted air 128 flows through the internal channel 136, it receives a heat flux 126 from one or more exothermic components. The rerouted air 116 passes under the angled fins 104, from the converging side 124 to the diverging side 122, where it becomes warm rerouted air 130. The warm, rerouted air 130 then flows upward to exit through a partial opening 146 located within the diverging channel 118 of the diverging side 122 of the angled fin 104, flowing out of the cooling assembly 102 as warm air 114.

[0028] Figure 4 illustrates, using graphs, a simulation of the angled fins 104 forming the converging channel 108 and the diverging channel 118. The converging channel 108 forms a high-pressure region, while the diverging channel 118 forms a low-pressure region, with the high-pressure region having a greater air pressure than the low-pressure region. By changing the widths of the converging channel 108 and the diverging channel 118, a pressure difference ranging from 80 Pa to 180 Pa can be achieved (measured between the centerlines of the converging channel 108 and the diverging channel 118).

[0029] The internal fins 110 can be of any size, shape, and configuration. Figure 1A-3 shows the internal fins 110 parallel to the exit edge 144 of the plate 112, but embodiments are not limited thereto. Referring below to Figure 5, a plate 512 of another example of the cooling assembly 502 is illustrated. The plate 512 of this embodiment has internal fins 510 that are not parallel to the edge of the plate 512. In particular, the internal fins 510 are angled so that they define a chevron pattern. The internal fins 510 define internal channels 518 that are arranged in a chevron pattern. The angled internal channels 518 reduce the angle at which the rerouted air 116 must swirl as it flows along the interior of the plate 512, thereby reducing fluid resistance through the internal channels 518 and reducing pressure loss across the cooling assembly 502.

[0030] Other internal fin configurations may also be provided. For example, the internal fins may be pin fins. The internal fins of this disclosure may also be porous, which increases the surface area through which the rerouted air passes through the internal channel.

[0031] The cooling assemblies described herein may be incorporated into any device having heat-generating components to be cooled. Such devices include vehicles such as the vehicle 132 shown in Figure 6. The vehicle 132 in Figure 6 is configured as an electric vertical take-off and landing (eVTOL) aircraft. However, it should be understood that the vehicle 132 may take on other configurations such as an airplane, automobile, truck, train, or monorail. Any device through which air flows may be configured to have a cooling assembly 102 as described herein. The vehicle 132 may have one or more cooling assemblies 102. In a non-limiting example, the cooling surface 140 is coplanar with a surface of the body 134 of the vehicle 132, such as the wings of the vehicle 132.

[0032] In this example, the propeller 150 of the vehicle 132 and the airflow generated by the vehicle 132's movement through the atmosphere pass through the manifold of the cooling assembly 102, which is defined by the angled fins 104. Because the angled fins 104 are generally positioned in the direction of the air 114, the pressure loss generated across the cooling assembly 102 is relatively small. The internal fins 110 are located below the surface of the main body 134, thereby contributing minimally to the drag on the vehicle 132.

[0033] In some embodiments, the cooling assembly 102 is coupled to the vehicle 132 in one or more electric aircraft motors 139, such as in the nacelle (e.g., cowling component) of the electric aircraft motor 139, where the power electronics are mounted internally, near the electromechanism of the electric aircraft motor 139.

[0034] Embodiments of this disclosure should be understood below to relate to a cooling assembly that cools a heat-generating component with low pressure loss by utilizing angled fins to create a pressure difference between alternating convergent and divergent channels. More specifically, ambient air is allowed to approach the angled fins and flow through the convergent and divergent channels. The convergent channels create high-pressure regions, and the divergent channels create low-pressure regions. These high-pressure and low-pressure regions are fluid-coupled to an internal heat sink having an array of internal fins defining the array of internal channels. The pressure difference is utilized to direct a portion of the air into the internal channels. This rerouted air flows from the convergent channels through the internal channels and then out through the divergent channels. The rerouted air is carried near the heat-generating component being cooled so that the rerouted air is warmed, thereby removing heat from the internal fins. The heated, rerouted air then flows out from the internal heatsink on the diverging channel side and joins the free flow of air that flows through the diverging channel and out to the back of the cooling assembly.

[0035] While specific embodiments are illustrated and described herein, it should be understood that various other changes and modifications can be made without departing from the spirit and scope of the subject matter set forth in the claims. Furthermore, while various aspects of the subject matter set forth in the claims are described herein, such aspects do not need to be used in combination. Accordingly, the attached claims are intended to encompass all such changes and modifications within the scope of the subject matter set forth in the claims.

[0036] It will be apparent to those skilled in the art that various modifications and alterations can be made to the embodiments described herein without departing from the scope of the claims. Therefore, this specification is intended to encompass such modifications and alterations, insofar as they fall within the scope of the appended claims and their equivalents.

[0037] The present invention as described herein may include the following embodiments. (1) Cooling assembly, A plate and Multiple angled fins, Equipped with, The plate comprises an arrangement of internal fins, a surface, and a plurality of openings, the arrangement of internal fins defining an arrangement of internal channels, The plurality of angled fins extend from the plate, and the plurality of angled fins define a plurality of channels comprising alternately arranged converging channels and diverging channels, and the arrangement of the internal channels is fluidly coupled to the plurality of channels defined by the plurality of angled fins. Cooling assembly. (2) The cooling assembly according to (1) above, wherein each of the angled fins of the plurality of angled fins is non-orthogonal to the edge of the plate. (3) The cooling assembly according to (1) above, wherein the surface is on a plate within the diverging channel, and the surface defines an opening for exposing the arrangement of internal channels within the diverging channel. (4) The cooling assembly according to (3) above, wherein the opening is a rectangular opening along the length of the plate. (5) The cooling assembly of (1) above, The aforementioned plurality of angled fins are operable to receive airflow in the direction of airflow, The airflow and the plurality of angled fins create high pressure in the converging channel and low pressure in the diverging channel. The aforementioned high pressure is greater than the aforementioned low pressure. Cooling assembly. (6) The cooling assembly according to (5) above, wherein the high pressure and low pressure cause air to flow from the converging channel through the arrangement of internal channels and further through the diverging channel. (7) The cooling assembly according to (1) above, wherein the arrangement of the internal fins defines a chevron pattern. (8) an electronic assembly, A plate and Multiple angled fins, One or more electronic devices, Equipped with, The plate comprises an arrangement of internal fins, a first surface, a second surface, and a plurality of openings, the arrangement of internal fins defining an arrangement of internal channels, The plurality of angled fins extend from the first surface of the plate, and the plurality of angled fins define a plurality of channels comprising alternately arranged converging channels and diverging channels, and the arrangement of the internal channels is fluidly coupled to the plurality of channels defined by the plurality of angled fins. One or more electronic devices are coupled to the second surface of the plate. Electronic assembly. (9) The electronic assembly according to (8) above, wherein each angled fin of the plurality of angled fins is non-orthogonal to the edge of the plate. (10) The electronic assembly according to (8) above, wherein the first surface is on a plate within the divergent channel, and the first surface defines an opening within the divergent channel to expose the arrangement of internal channels. (11) The electronic assembly according to (10) above, wherein the opening is a rectangular opening along the length of the plate. (12) The electronic assembly described in (8) above, The aforementioned plurality of angled fins are operable to receive airflow in the direction of airflow, The airflow and the plurality of angled fins create high pressure in the converging channel and low pressure in the diverging channel. The aforementioned high pressure is greater than the aforementioned low pressure. Electronic assembly. (13) The electronic assembly according to (12) above, wherein the high pressure and the low pressure cause air to flow from the converging channel through the arrangement of internal channels and further through the diverging channel. (14) The electronic assembly according to (8) above, wherein the arrangement of the internal fins defines a chevron pattern. (15) A vehicle, The main unit and An electronic assembly coupled to the main body, The aforementioned electronic assembly is A plate and Multiple angled fins, One or more electronic devices, Equipped with, The plate comprises an arrangement of internal fins, a first surface, a second surface, and a plurality of openings, the arrangement of internal fins defining an arrangement of internal channels, The plurality of angled fins extend from the first surface of the plate, and the plurality of angled fins define a plurality of channels comprising alternately arranged converging channels and diverging channels, and the arrangement of the internal channels is fluidly coupled to the plurality of channels defined by the plurality of angled fins. One or more electronic devices are coupled to the second surface of the plate. Electronic assembly and, A vehicle equipped with [a specific feature / equipment]. (16) The vehicle of the above (15), wherein the vehicle is an aircraft equipped with an electric motor, and the electronic assembly is coupled to the vehicle in the electric motor. (17) The vehicle according to (15) above, wherein each angled fin of the plurality of angled fins is not perpendicular to the edge of the plate. (18) The vehicle according to (15) above, wherein the first surface is on a plate within the divergent channel, and the first surface defines an opening within the divergent channel to expose the arrangement of the internal channels. (19) A vehicle according to (18) above, wherein the opening is a rectangular opening along the length of the plate. (20) The vehicle described in (15) above, The aforementioned plurality of angled fins are operable to receive airflow in the direction of airflow, The airflow and the plurality of angled fins create high pressure in the converging channel and low pressure in the diverging channel. The aforementioned high pressure is greater than the aforementioned low pressure. vehicle.

Claims

1. A cooling assembly, A plate and Multiple angled fins, Equipped with, The plate comprises an arrangement of internal fins, a surface, and a plurality of openings, the arrangement of internal fins defining an arrangement of internal channels, The plurality of angled fins extend from the plate, and the plurality of angled fins define a plurality of channels comprising alternately arranged converging channels and diverging channels, and the arrangement of the internal channels is fluidly coupled to the plurality of channels defined by the plurality of angled fins. Cooling assembly.

2. A cooling assembly according to claim 1, wherein each of the angled fins is non-orthogonal to the edge of the plate.

3. A cooling assembly according to claim 1, wherein the surface is on a plate within the diverging channel, and the surface defines an opening for exposing the arrangement of internal channels within the diverging channel.

4. A cooling assembly according to claim 3, wherein the opening is a rectangular opening along the length of the plate.

5. A cooling assembly according to claim 1, The aforementioned plurality of angled fins are operable to receive airflow in the direction of airflow, The airflow and the plurality of angled fins create high pressure in the converging channel and low pressure in the diverging channel. The aforementioned high pressure is greater than the aforementioned low pressure. Cooling assembly.

6. Cooling assembly according to claim 5, wherein the high pressure and the low pressure cause air to flow from the converging channel through the arrangement of internal channels and further through the diverging channel.

7. A cooling assembly according to claim 1, wherein the arrangement of the internal fins defines a chevron pattern.

8. An electronic assembly, A plate and Multiple angled fins, One or more electronic devices, Equipped with, The plate comprises an arrangement of internal fins, a first surface, a second surface, and a plurality of openings, the arrangement of internal fins defining an arrangement of internal channels, The plurality of angled fins extend from the first surface of the plate, and the plurality of angled fins define a plurality of channels comprising alternately arranged converging channels and diverging channels, and the arrangement of the internal channels is fluidly coupled to the plurality of channels defined by the plurality of angled fins. One or more electronic devices are coupled to the second surface of the plate. Electronic assembly.

9. The electronic assembly according to claim 8, wherein each of the angled fins of the plurality of angled fins is non-orthogonal to the edge of the plate.

10. An electronic assembly according to claim 8, wherein the first surface is on a plate within the divergent channel, and the first surface defines an opening within the divergent channel for exposing the arrangement of internal channels.

11. An electronic assembly according to claim 10, wherein the opening is a rectangular opening along the length of the plate.

12. The electronic assembly according to claim 8, The aforementioned plurality of angled fins are operable to receive airflow in the direction of airflow, The airflow and the plurality of angled fins create high pressure in the converging channel and low pressure in the diverging channel. The aforementioned high pressure is greater than the aforementioned low pressure. Electronic assembly.

13. An electronic assembly according to claim 12, wherein the high pressure and the low pressure cause air to flow from the converging channel through the array of internal channels and further through the diverging channel.

14. An electronic assembly according to claim 8, wherein the arrangement of the internal fins defines a chevron pattern.

15. It is a vehicle, The main unit and An electronic assembly coupled to the aforementioned body, The aforementioned electronic assembly is A plate and Multiple angled fins, One or more electronic devices, Equipped with, The plate comprises an arrangement of internal fins, a first surface, a second surface, and a plurality of openings, the arrangement of internal fins defining an arrangement of internal channels, The plurality of angled fins extend from the first surface of the plate, and the plurality of angled fins define a plurality of channels comprising alternately arranged converging channels and diverging channels, and the arrangement of the internal channels is fluidly coupled to the plurality of channels defined by the plurality of angled fins. One or more electronic devices are coupled to the second surface of the plate. Electronic assembly and, A vehicle equipped with a vehicle.

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