Double-sided liquid cooling heat exchange device and domain controller module

Abstract

The utility model relates to a double-sided liquid cooling heat exchange device and a domain controller module. The double-sided liquid-cooling heat exchange device comprises a body, a liquid-cooling heat exchanger, a liquid-cooling heat exchanger, a liquid-cooling heat exchanger, a liquid-cooling heat exchanger, a liquid-cooling heat exchanger and a liquid-cooling heat exchanger, the cover body comprises an upper cover plate and a lower cover plate, and the upper cover plate and the lower cover plate are arranged on the body in a covering mode on the two opposite sides of the body so as to enclose the upper-layer flow channel and the lower-layer flow channel; the turbulent flow body comprises an upper turbulent flow body arranged in the upper-layer flow channel and a lower turbulent flow body arranged in the lower-layer flow channel; the exposed surfaces of the upper cover plate and the lower cover plate are respectively provided with a heat dissipation convex part, and the heat dissipation convex parts can be respectively contacted with an object to be subjected to heat dissipation to realize double-sided heat dissipation. The domain controller module provided by the utility model comprises the double-sided liquid cooling heat exchange device.

Description

Technical Field

[0001] The present application relates to the field of heat exchange technology, and in particular to a double-sided liquid cooling heat exchange device and a domain controller module. Background Art

[0002] With the development of automobile intelligence, autonomous driving has gradually become the mainstream of the market, and autonomous driving technology relies on a variety of front-end sensors to provide scene and vehicle information, including visual cameras, millimeter-wave radars, ultrasonic radars, lidars, odometers, high-precision positioning, inertial devices and other sensors as well as high-precision maps. The sharp increase in the number of sensors and the complexity of wiring harnesses has posed a huge challenge to the ECU (Electronic Control Unit) and electronic and electrical architecture in the traditional automotive field. Gradually replacing the distributed architecture with a centralized architecture solution may become the mainstream direction of future development. Replacing the traditional ECU with a highly integrated and high-computing ADAS (Advanced Driver Assistance System) domain controller is a better solution at this stage. The higher the computing power of the ADAS domain controller, the greater the energy consumption, which puts higher demands on the heat dissipation of the core processing chip.

[0003] At present, ADAS domain controllers on the market generally use forced air cooling for heat dissipation, but the heat dissipation efficiency of the air cooling structure is low, the fan produces a lot of noise and is easily damaged. With the improvement of the level of intelligent driving technology, the forced air cooling system has gradually failed to meet the use requirements of heat dissipation. Therefore, it is necessary to design a water cooling structure for ADAS domain controllers to enhance the efficiency of heat dissipation and ensure the reliability of the heat dissipation system.

[0004] Existing liquid-cooled domain controllers can usually only achieve single-sided heat dissipation. Therefore, when designing the PCBA board layout of the current domain controller, high-power consumption components are usually placed on the side that can provide liquid cooling, and each cold plate cools each PCBA board separately. This leads to a tight layout and waste of space. Therefore, when the domain controller needs to cool multiple PCBA boards, how to achieve efficient heat dissipation becomes an urgent problem to be solved. Utility Model Content

[0005] Based on this, it is necessary to provide a liquid cooling heat exchange device and a domain controller module that can dissipate heat on both sides.

[0006] To this end, the present application adopts the following technical solution: a double-sided liquid cooling heat exchange device, comprising:

[0007] A body, comprising a partition and an upper flow channel and a lower flow channel separated by the partition;

[0008] A cover body, comprising an upper cover plate and a lower cover plate, wherein the upper cover plate and the lower cover plate are covered on the body at two opposite sides of the body to enclose the upper flow channel and the lower flow channel; and

[0009] A disturbing fluid, comprising an upper disturbing fluid arranged in the upper flow channel and a lower disturbing fluid arranged in the lower flow channel;

[0010] Wherein, heat dissipation protrusions are respectively provided on the exposed surfaces of the upper cover plate and the lower cover plate, and the heat dissipation protrusions can respectively contact with the objects to be dissipated and perform heat exchange.

[0011] It can be understood that the upper cover plate and the main body of the liquid-cooled heat exchange device provided in the present application form an upper flow channel, and the lower cover plate and the main body form a lower flow channel. The coolant flowing through the upper flow channel and the lower flow channel can perform heat exchange on both the upper cover plate and the lower cover plate. The upper cover plate and the lower cover plate are respectively provided with heat dissipation protrusions, which can respectively contact the objects to be cooled, thereby realizing double-sided heat dissipation, making the layout between the liquid-cooled heat exchange device and the objects to be cooled compact and making full use of the space.

[0012] In one embodiment, a liquid inlet and a liquid outlet are provided on the main body, wherein the liquid inlet is directly connected to the upper flow channel, and the liquid outlet is directly connected to the lower flow channel.

[0013] In one of the embodiments, a through hole is formed on the partition, and the upper flow channel and the lower flow channel are connected through the through hole.

[0014] It can be understood that by providing a liquid inlet directly connected to the upper channel and a liquid outlet directly connected to the lower channel, as well as a through hole that passes through the upper channel and the lower channel, the cooling liquid circulation in the upper channel and the lower channel can be driven by a set of inlet and outlet pipelines.

[0015] In one embodiment, the through holes include a liquid inlet through hole close to the liquid inlet and a liquid outlet through hole close to the liquid outlet.

[0016] In one embodiment, an upper baffle is provided on the upper side of the partition, and the upper baffle is blocked between the liquid inlet and the liquid outlet through hole to extend the flow path of the coolant input from the liquid inlet to the upper flow channel to the liquid outlet through hole; and / or, a lower baffle is provided on the lower side of the partition, and the lower baffle is blocked between the liquid inlet through hole and the liquid outlet to extend the flow path of the coolant input from the liquid inlet and the liquid inlet through hole to the lower flow channel to the liquid outlet.

[0017] It can be understood that by blocking the upper and lower baffles between the liquid inlet and outlet and the liquid inlet and outlet through holes, the flow path of the coolant in the upper and lower flow channels can be extended, preventing the coolant from flowing directly from the liquid inlet to the liquid outlet without sufficient heat exchange.

[0018] In one embodiment, the coolant in the upper flow channel and the lower flow channel flows in a U-shape. It is understandable that the overall flow path of the coolant in the upper flow channel and the lower flow channel is U-shaped, which can further enhance the heat exchange between the coolant and the body and the cover, and enhance the heat dissipation performance.

[0019] In one embodiment, the upper flow channel and the lower flow channel are respectively provided with a curved guide portion for guiding the coolant to change the flow direction to form the U-shaped flow. It can be understood that the provision of the curved guide portion can smoothly guide the flow of the coolant and reduce the impact of the coolant at the flow direction change point to affect the flow of the coolant.

[0020] In one embodiment, the upper cover plate and the lower cover plate are both metal cover plates, which are welded to the body. It can be understood that metal welding provides a firm and airtight connection, and coolant leakage is not likely to occur.

[0021] In one embodiment, the fluid-disturbing body is a metal part formed with a plurality of fins, or the fluid-disturbing body is a plurality of protrusions formed on the cover and / or the body. It is understandable that a plurality of fins or protrusions can increase the heat exchange area and improve the heat exchange effect.

[0022] The present application also adopts the following technical solution: a domain controller module, comprising a domain controller and a double-sided liquid-cooled heat exchange device as described above, wherein the double-sided liquid-cooled heat exchange device is sandwiched between two circuit boards of the domain controller, and the heat dissipation protrusion of the double-sided liquid-cooled heat exchange device is attached to the heat-generating electrical components on the circuit boards.

[0023] Compared with the prior art, the upper cover plate and the main body of the double-sided liquid-cooled heat exchange device provided by the present application form an upper flow channel, and the lower cover plate and the main body form a lower flow channel. The coolant flowing through the upper flow channel and the lower flow channel can perform heat exchange on both the upper cover plate and the lower cover plate. The upper cover plate and the lower cover plate are respectively provided with heat dissipation protrusions, and the heat dissipation protrusions can respectively contact and perform heat exchange with the object to be cooled. In this way, double-sided heat dissipation can be achieved, so that the layout between the double-sided liquid-cooled heat exchange device and the object to be cooled is compact, and the space is fully utilized. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A three-dimensional diagram of an embodiment of a double-sided liquid-cooled heat exchange device provided in the present application.

[0026] Figure 2 A stereoscopic view from another perspective of an embodiment of a double-sided liquid-cooled heat exchange device provided in the present application.

[0027] Figure 3 This is a three-dimensional exploded view of an embodiment of a double-sided liquid-cooled heat exchange device provided in the present application.

[0028] Figure 4 A three-dimensional exploded view from another perspective of an embodiment of a double-sided liquid-cooled heat exchange device provided in the present application.

[0029] Figure 5 A three-dimensional diagram of the main body of an embodiment of a double-sided liquid-cooled heat exchange device provided in the present application.

[0030] Figure 6 A cross-sectional view of the body of an embodiment of a double-sided liquid-cooled heat exchange device provided in the present application.

[0031] The reference numerals of the components are as follows:

[0032] 100. Double-sided liquid-cooled heat exchange device; 1. Main body; 101. Upper flow channel; 102. Lower flow channel; 11. Liquid inlet; 111. Liquid inlet through hole; 12. Liquid outlet; 121. Liquid outlet through hole; 13. Partition; 141. Upper baffle; 142. Lower baffle; 151. Upper bend guide; 152. Lower bend guide; 16. Mounting foot; 21. Upper cover; 211. Heat dissipation protrusion of upper cover; 22. Lower cover; 221. Heat dissipation protrusion of lower cover; 31. Upper disruptor fluid; 32. Lower disruptor fluid. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0034] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are in contact indirectly through an intermediate medium. Moreover, a first feature being “above”, “above”, or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0038] See also Figures 1 to 6The present application provides a double-sided liquid-cooled heat exchange device 100, which includes a main body 1, a cover body covered on the main body 1, and a disturbing fluid disposed in a flow channel surrounded by the cover body and the main body 1. The coolant flows through the flow channel and is disturbed by the disturbing fluid to fully exchange heat with the cover body, thereby achieving heat dissipation of the components to be cooled that are in contact with the cover body. The body 1 includes a partition 13 and an upper flow channel 101 and a lower flow channel 102 separated by the partition 13; the fluid disruptor includes an upper fluid disruptor 31 arranged in the upper flow channel 101 and a lower fluid disruptor 32 arranged in the lower flow channel 102, which are used to disrupt the coolant in the upper flow channel 101 and the lower flow channel 102 respectively to achieve heat exchange; the cover body includes an upper cover plate 21 and a lower cover plate 22, and the upper cover plate 21 and the lower cover plate 22 are covered on the body 1 at opposite sides of the body 1 to enclose the upper flow channel 101 and the lower flow channel 102, and the upper cover plate 21 is provided with a heat dissipation protrusion 211 of the upper cover plate on the exposed surface, and the lower cover plate 22 is provided with a heat dissipation protrusion 221 of the lower cover plate on the exposed surface, and the heat dissipation protrusions 211 and 221 on the upper cover plate 21 and the lower cover plate 22 can respectively contact with the object to be cooled and perform heat exchange.

[0039] The upper cover plate 21 and the main body 1 of the double-sided liquid-cooled heat exchange device 100 provided in the present application form an upper flow channel 101, and the lower cover plate 22 and the main body 1 form a lower flow channel 102. The cooling liquid flowing through the upper flow channel 101 and the lower flow channel 102 can perform heat exchange on both the upper cover plate 21 and the lower cover plate 22. The upper cover plate 21 and the lower cover plate 22 are respectively provided with heat dissipation protrusions 211 and 221, which can respectively contact and exchange heat with the object to be cooled. In this way, double-sided heat dissipation can be achieved, so that the layout between the double-sided liquid-cooled heat exchange device 100 and the object to be cooled is compact, and the space is fully utilized.

[0040] See also Figures 1 to 4 As shown, the body 1 is generally a flat rectangular parallelepiped, and a liquid inlet 11 and a liquid outlet 12 are provided on one side end thereof for the coolant to enter and exit the flow channel. A plurality of mounting feet 16 are also provided on the side of the body 1 for fixing the double-sided liquid cooling heat exchange device 100 to an object to be cooled, such as a domain controller. In this embodiment, the mounting feet 16 are provided with screw holes, which can be screwed on the mounting feet 16 to fix the double-sided liquid cooling heat exchange device 100.

[0041] See also Figure 5 and Figure 6As shown, in this embodiment, the liquid inlet 11 is directly connected to the upper channel 101, and the liquid outlet 12 is directly connected to the lower channel 102. A through hole is provided on the partition 13, and the upper channel 101 and the lower channel 102 are connected through the through hole. By providing the liquid inlet 11 directly connected to the upper channel 101 and the liquid outlet 12 directly connected to the lower channel 102, and the through hole that passes through the upper channel 101 and the lower channel 102, the circulation drive of the coolant in the upper channel 101 and the lower channel 102 can be realized through a set of liquid inlet and outlet pipelines, without the need to respectively provide liquid inlet and outlet pipelines for the upper channel 101 and the lower channel 102, which can simplify the product structure. In this embodiment, the through hole includes a liquid inlet through hole 111 close to the liquid inlet 11 and a liquid outlet through hole 121 close to the liquid outlet 12. A portion of the coolant entering from the liquid inlet 11 flows directly into the upper-layer flow channel 101, and the other portion flows into the lower-layer flow channel 102 through the liquid inlet through hole 111; the coolant flowing in the upper-layer flow channel 101 passes through the liquid outlet through hole 121 and is discharged from the liquid outlet 12, and the coolant flowing in the lower-layer flow channel 102 is directly discharged through the liquid outlet 12.

[0042] See also Figures 3 to 5 As shown, further, an upper baffle 141 is provided on the upper side of the partition 13, and the upper baffle 141 blocks the liquid inlet 11 and the liquid outlet through hole 121 to extend the flow path of the coolant input from the liquid inlet 11 to the upper-layer flow channel 101 to the liquid outlet through hole 121; a lower baffle 142 is provided on the lower side of the partition 13, and the lower baffle 142 blocks the liquid inlet through hole 111 and the liquid outlet 12 to extend the flow path of the coolant input from the liquid inlet 11 and the liquid inlet through hole 111 to the lower-layer flow channel 102 to the liquid outlet 12. By blocking the liquid inlet and outlet 11, 12 and the liquid inlet and outlet through holes 111, 121 through the upper and lower retaining ribs 141, 142, the flow path of the coolant in the upper and lower layer channels 101, 102 can be extended to prevent the coolant from flowing directly from the liquid inlet 11 to the liquid outlet 12 without sufficient heat exchange.

[0043] The upper retaining rib 141 and the lower retaining rib 142 extend from the side ends of the body 1 where the liquid inlet 11 and the liquid outlet 12 are located, respectively, and there is a gap between the other ends of the upper retaining rib 141 and the lower retaining rib 142 and the other side ends of the body 1, so that the coolant can bypass the other ends of the upper retaining rib 141 and the lower retaining rib 142, so that the coolant in the upper flow channel 101 and the lower flow channel 102 flows in a U-shape. It can be understood that the overall flow path of the coolant in the upper flow channel 101 and the lower flow channel 102 is U-shaped, which can further enhance the heat exchange between the coolant and the body 1 and the cover, and enhance the heat dissipation performance. Furthermore, the upper flow channel 101 and the lower flow channel 102 are respectively provided with a bend guide portion for guiding the coolant to change the flow direction to form the U-shaped flow, namely, an upper bend guide portion 151 located in the upper flow channel 101 and a lower bend guide portion 152 located in the lower flow channel 102. It can be understood that the provision of the bend guide portion can smoothly guide the flow of the coolant and reduce the impact of the coolant at the flow direction change point to affect the flow of the coolant. The upper bend guide portion 151 is provided at the end of the upper retaining rib 141, and the lower bend guide portion 152 is provided at the end of the lower retaining rib 142. In this embodiment, the upper bend guide portion 151 and the lower bend guide portion 152 are both a plurality of convex ribs or convex blocks with curved surfaces.

[0044] Please continue reading Figures 1 to 4 As shown, the upper cover plate 21 and the lower cover plate 22 are both metal cover plates, which are welded to the body 1. Metal welding is adopted, the connection is firm and airtight, and it is not easy to leak the coolant. The outer surfaces of the upper cover plate 21 and the lower cover plate 22 are respectively provided with a plurality of heat dissipation protrusions, and the heat dissipation protrusions are used to abut against the components to be cooled. The heat dissipation protrusions can be multiple, and their sizes, shapes, and heights can be different to match the components to be cooled, so as to better abut against the components to be cooled, so as to achieve more accurate, concentrated and excellent heat dissipation.

[0045] In this embodiment, the fluid-disturbing body is a metal part formed with a plurality of fins. In some other embodiments, the fluid-disturbing body may also be a plurality of protrusions formed on at least one of the cover body and the body 1. It is understandable that a plurality of fins or protrusions can increase the heat exchange area and improve the heat exchange effect. The fluid-disturbing body may be an independent component placed in the flow channel, or may be integrally formed with the body 1 or the cover body.

[0046] The present application also provides a domain controller module, which includes a domain controller (not shown) and a double-sided liquid-cooled heat exchange device 100 as described in any of the above embodiments, wherein the double-sided liquid-cooled heat exchange device 100 is sandwiched between two circuit boards of the domain controller, and the heat dissipation protrusion of the double-sided liquid-cooled heat exchange device is abutted against the heat-generating electrical components on the circuit board. The domain controller refers in particular to an ADAS (Advanced Driver Assistance System) domain controller for intelligent control of automobiles. The abutment can be direct abutment or indirect abutment through components such as heat transfer parts or non-insulated shells.

[0047] It can be seen from the above specific description that compared with the prior art, the upper cover plate 21 of the double-sided liquid-cooled heat exchange device 100 provided in the present application and the main body 1 form an upper flow channel 101, and the lower cover plate 22 and the main body 1 form a lower flow channel 102. The cooling liquid flowing through the upper flow channel 101 and the lower flow channel 102 can perform heat exchange on both the upper cover plate 21 and the lower cover plate 22. The upper cover plate 21 and the lower cover plate 22 are respectively provided with heat dissipation protrusions, which can respectively contact and perform heat exchange with the object to be cooled. In this way, double-sided heat dissipation can be achieved, so that the layout between the double-sided liquid-cooled heat exchange device 100 and the object to be cooled is compact, and the space can be fully utilized.

[0048] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A double-sided liquid cooling heat exchange device, characterized in that: include: A body, comprising a partition and an upper flow channel and a lower flow channel separated by the partition; A cover body, comprising an upper cover plate and a lower cover plate, wherein the upper cover plate and the lower cover plate are covered on the body at two opposite sides of the body to enclose the upper flow channel and the lower flow channel; and A disturbing fluid, comprising an upper disturbing fluid arranged in the upper flow channel and a lower disturbing fluid arranged in the lower flow channel; Wherein, heat dissipation protrusions are respectively provided on the exposed surfaces of the upper cover plate and the lower cover plate, and the heat dissipation protrusions can respectively contact with the objects to be dissipated and perform heat exchange.

2. The double-sided liquid cooling heat exchange device according to claim 1, characterized in that: The body is provided with a liquid inlet and a liquid outlet, wherein the liquid inlet is directly connected to the upper flow channel, and the liquid outlet is directly connected to the lower flow channel.

3. The double-sided liquid cooling heat exchange device according to claim 2, characterized in that: The partition plate is provided with a through hole, and the upper flow channel and the lower flow channel are connected through the through hole.

4. The double-sided liquid cooling heat exchange device according to claim 3, characterized in that: The through holes include a liquid inlet through hole close to the liquid inlet and a liquid outlet through hole close to the liquid outlet.

5. The double-sided liquid cooling heat exchange device according to claim 4, characterized in that: An upper baffle is provided on the upper side of the partition, and the upper baffle is blocked between the liquid inlet and the liquid outlet through hole to extend the flow path of the coolant input from the liquid inlet into the upper flow channel to the liquid outlet through hole; and / or, A lower baffle is provided on the lower side of the partition, and the lower baffle is blocked between the liquid inlet through hole and the liquid outlet to extend the flow path of the coolant input into the lower layer flow channel from the liquid inlet and the liquid inlet through hole to the liquid outlet.

6. The double-sided liquid cooling heat exchange device according to any one of claims 1 to 5, characterized in that: The coolant in the upper flow channel and the lower flow channel both flows in a U shape.

7. The double-sided liquid cooling heat exchange device according to claim 6, characterized in that: The upper flow channel and the lower flow channel are respectively provided with curved guide parts for guiding the coolant to change the flow direction to form the U-shaped flow.

8. The double-sided liquid cooling heat exchange device according to claim 1, characterized in that: The upper cover plate and the lower cover plate are both metal cover plates, which are welded to the body.

9. The double-sided liquid cooling heat exchange device according to claim 1, characterized in that: The flow-disturbing body is a metal member formed with a plurality of fins, or the flow-disturbing body is a plurality of protrusions formed on the cover body and / or the body.

10. A domain controller module, characterized in that: It comprises a domain controller and a double-sided liquid-cooled heat exchange device as described in any one of claims 1 to 9, wherein the double-sided liquid-cooled heat exchange device is sandwiched between two circuit boards of the domain controller, and the heat dissipation protrusion of the double-sided liquid-cooled heat exchange device is attached to the heat-generating electrical components on the circuit boards.

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