CN220137651U - Automatic driving vehicle-mounted computing unit with liquid cooling heat dissipation structure - Google Patents
Automatic driving vehicle-mounted computing unit with liquid cooling heat dissipation structure Download PDFInfo
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Abstract
The utility model discloses an automatic driving vehicle-mounted computing unit with a liquid cooling heat dissipation structure, which comprises a case, wherein a main board is arranged in the case, a CPU (central processing unit), a GPU (graphics processing unit), a memory bank and the like are arranged on the main board, a CPU liquid cooling plate is stuck on the upper surface of the CPU, a GPU liquid cooling plate is stuck on the side surface of the GPU, a low-temperature cooling liquid inlet connector and a high-temperature cooling liquid outlet connector are arranged on the side wall of the case, and the CPU liquid cooling plate and the GPU liquid cooling plate are connected in series between the inner end of the low-temperature cooling liquid inlet connector and the inner end of the high-temperature cooling liquid outlet connector through corresponding cooling liquid drainage tubes; the CPU liquid cooling plate, the low-temperature cooling liquid inlet connector, the high-temperature cooling liquid outlet connector and the cooling liquid drainage tube form an internal liquid cooling heat dissipation structure of the vehicle-mounted computing unit. The utility model can greatly reduce the high temperature generated by the automatic driving vehicle-mounted computing unit in operation, can protect the components in the automatic driving vehicle-mounted computing unit and ensures the normal operation of the automatic driving vehicle-mounted computing unit.
Description
Technical Field
The utility model belongs to the technical field of cooling computing units, and particularly relates to an automatic driving vehicle-mounted computing unit with a liquid cooling heat dissipation structure.
Background
With the continuous development of the autopilot technology, the computing power of the on-board computing unit is continuously increasing. The vehicle-mounted computing unit generally comprises a central processing unit, an AI graphic computing processor, a memory and other components, and the components generate huge heat in the high-speed operation process, so that the heat dissipation requirement on the vehicle-mounted computing unit is higher and higher.
The on-board computing unit is typically installed in a limited enclosed space such as a front cabin or a trunk of the vehicle. The conventional cooling means is air-cooled heat dissipation, but is limited by the characteristics of the air-cooled heat dissipation, and a plurality of fans are often required to be connected in parallel or in series when facing the application scene of heat with larger power consumption, so that the problem of larger noise is often caused when working, and the driving experience is influenced.
Currently, there are also schemes for air-cooling and heat-dissipating on-board computing units by means of vehicle air-conditioning systems, such as "a vehicle for automatic driving (grant bulletin number: CN 210478346U)" and "a vehicle for chinese utility model (grant bulletin number: CN 208682561U)". However, huge heat still has an unsatisfactory cooling effect under the limited space condition, particularly in the annual high-temperature weather in the south, the normal work of the vehicle-mounted computing unit is directly influenced, an automatic driving system can not timely calculate road conditions and related instructions, the whole vehicle system is seriously and even downtime is caused, life and public safety are influenced, the refrigerating effect in a passenger cabin is also influenced after cold air of the vehicle air conditioning system is borrowed, and the burden of the vehicle air conditioning system and a power battery is increased.
In order to break through the limitation brought by the air cooling heat dissipation of the automatic driving vehicle-mounted computing unit, a set of liquid cooling heat dissipation scheme for the automatic driving vehicle-mounted computing unit is developed, and the trend of the solution of the large power consumption application scene of the vehicle-mounted computing unit is gradually becoming.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides an automatic driving vehicle-mounted computing unit with a liquid cooling heat dissipation structure, so as to solve the problem of effectively dissipating huge heat generated by the automatic driving vehicle-mounted computing unit in high-speed operation under the condition of limited internal space of an automobile.
In order to solve the technical problems and achieve the technical effects, the utility model is realized by the following technical scheme:
the automatic driving vehicle-mounted computing unit with the liquid cooling heat dissipation structure comprises a case, wherein a main board is arranged in the case, at least one CPU, at least one GPU, at least one memory bank and other necessary components are arranged on the main board, a CPU liquid cooling plate is attached to the upper surface of the CPU, a GPU liquid cooling plate is attached to the side surface of the GPU, a low-temperature cooling liquid inlet connector and a high-temperature cooling liquid outlet connector are arranged on the side wall of the case, and the CPU liquid cooling plate and the GPU liquid cooling plate are connected in series between the inner end of the low-temperature cooling liquid inlet connector and the inner end of the high-temperature cooling liquid outlet connector through corresponding cooling liquid drainage tubes; the CPU liquid cooling plate, the low-temperature cooling liquid inlet connector, the high-temperature cooling liquid outlet connector and the cooling liquid drainage tube jointly form an internal liquid cooling heat dissipation structure of the vehicle-mounted computing unit.
Further, two CPUs and two GPUs are arranged on the main board, a corresponding CPU liquid cooling plate is attached to the upper surfaces of the two CPUs, and a corresponding GPU liquid cooling plate is attached to the side surfaces of the two GPUs; the two CPU liquid cooling plates and the two GPU liquid cooling plates are serially connected to drain, the inner end of the low-temperature liquid cooling liquid inlet connector is connected with the first liquid inlet of the CPU liquid cooling plate through a first liquid cooling drainage tube, the liquid outlet of the CPU liquid cooling plate is connected with the second liquid inlet of the CPU liquid cooling plate through a second liquid cooling drainage tube, the liquid outlet of the CPU liquid cooling plate is connected with the first liquid inlet of the GPU liquid cooling plate through a third liquid cooling drainage tube, the liquid outlet of the GPU liquid cooling plate is connected with the second liquid inlet of the GPU liquid cooling plate through a fourth liquid cooling drainage tube, and the liquid outlet of the GPU liquid cooling plate is connected with the inner end of the high-temperature liquid cooling liquid outlet connector through a fifth liquid cooling drainage tube.
Further, the main part of CPU liquid cooling board is a size slightly greater than the cooling liquid flow diaphragm of CPU, the lower surface of cooling liquid flow diaphragm be used for with the contact surface that the CPU laminated mutually, the upper surface of cooling liquid flow diaphragm is provided with CPU liquid cooling board cooling liquid inlet and CPU liquid cooling board cooling liquid outlet, the inside of cooling liquid flow diaphragm is provided with first cavity, be provided with in the first cavity and supply the coolant liquid follow CPU liquid cooling board cooling liquid inlet to flow to the coolant liquid horizontal runner of CPU liquid cooling board cooling liquid outlet.
Further, be provided with the round and bordure around the coolant flow diaphragm, wear to be equipped with one respectively downwards on four apex angles of bordure be used for with mainboard fixed connection's locking screw, every all overlap on the locking screw and be equipped with hold-down spring, hold-down spring's lower extreme with the upper surface contact of coolant flow diaphragm, hold-down spring's upper end with the screw head lower edge contact of corresponding locking screw, so that coolant flow diaphragm floatingly pastes tightly CPU's upper surface.
Further, the main body of the GPU liquid cooling plate is a cooling liquid flowing vertical plate with the size corresponding to that of the GPU, a concave groove or a hollow structure for avoiding a convex capacitor on the GPU is arranged on one half side surface of the cooling liquid flowing vertical plate, one side surface of the other half side of the cooling liquid flowing vertical plate is a contact surface for being attached to a chip of the GPU, a GPU liquid cooling plate cooling liquid inlet and a GPU liquid cooling plate cooling liquid outlet are arranged on the upper portion of the other half side of the cooling liquid flowing vertical plate, a second cavity is formed in the other half side of the cooling liquid flowing vertical plate, and a cooling liquid vertical flow channel for cooling liquid to flow from the GPU liquid cooling plate cooling liquid inlet to the GPU liquid cooling plate cooling liquid outlet is arranged in the second cavity.
Further, when the cooling liquid flowing vertical plate is attached to the side surface of the GPU, one end of the cooling liquid flowing vertical plate is fixedly connected with the side wall of the case through the side bracket of the GPU liquid cooling plate, and the upper end of the cooling liquid flowing vertical plate is fixedly connected with the top cover plate of the case through the upper bracket of the GPU liquid cooling plate.
Further, a fan for assisting in heat dissipation is arranged on the side wall of the case.
Further, a transparent observation window is embedded in the top cover plate of the case.
Furthermore, the CPU liquid cooling plate and the GPU liquid cooling plate are made of high heat conduction metals such as copper or aluminum, and the cooling liquid drainage pipes are all made of anti-corrosion, odorless and bendable drainage pipelines.
Further, the cooling liquid adopted by the internal liquid cooling heat dissipation structure of the computing unit is derived from an original liquid cooling heat dissipation system of the vehicle, a low-temperature cooling liquid outlet of the original liquid cooling heat dissipation system of the vehicle is connected with a cooling liquid inlet of a liquid separator through a low-temperature cooling liquid main pipeline, the cooling liquid outlet of the liquid separator is respectively connected with the existing cooling pipeline of the vehicle and the outer end of a low-temperature cooling liquid inlet joint of the automatic driving vehicle-mounted computing unit through two corresponding low-temperature cooling liquid sub pipelines, and the outer end of a high-temperature cooling liquid outlet joint of the automatic driving vehicle-mounted computing unit is connected with a high-temperature cooling liquid reflux port of the original liquid cooling heat dissipation system of the vehicle through a high-temperature cooling liquid reflux pipeline; the original liquid cooling heat dissipation system of the vehicle, the low-temperature cooling liquid main pipeline, the liquid separator and the high-temperature cooling liquid return pipeline form an external cooling structure of the vehicle-mounted computing unit.
The beneficial effects of the utility model are as follows:
the utility model relates to a liquid cooling system and a vehicle-mounted unit case structure designed aiming at a high-performance liquid cooling computing unit in a motor cabin or a trunk of a specific vehicle type, which meet the requirement of an automatic driving vehicle on a server installation structure, provide a placement space of the vehicle-mounted computing unit in a limited vehicle engine cabin or trunk, promote the combination of the motor cabin and the trunk and the placement space, and match the vehicle-mounted computing unit with the liquid cooling system in the vehicle to perform efficient heat dissipation, thereby effectively solving the problem of effectively dissipating huge heat generated by the automatic driving vehicle-mounted computing unit in high-speed operation under the condition of limited vehicle interior space.
According to the utility model, through the cooperation of the liquid cooling system of the vehicle body, the automatic driving vehicle-mounted liquid cooling computing unit and the liquid drainage pipeline, the high temperature generated by the automatic driving vehicle-mounted computing unit in operation can be greatly reduced, and the components in the automatic driving vehicle-mounted computing unit can be protected, so that the normal operation of the automatic driving vehicle-mounted computing unit can be ensured.
The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and the accompanying drawings. Specific embodiments of the present utility model are given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
FIG. 1 is a perspective view of one side of the present utility model with a top cover plate removed;
FIG. 2 is a perspective view of the present utility model from the other side with the top cover plate removed;
FIG. 3 is a schematic diagram of a system architecture according to the present utility model;
FIG. 4 is a top view of a CPU liquid cooling plate according to the present utility model;
FIG. 5 is a side view of a CPU liquid cooling plate of the present utility model;
FIG. 6 is a side view of a GPU liquid cooling plate of the present utility model;
fig. 7 is a top view of the GPU liquid cooling plate of the present utility model.
Detailed Description
The utility model will be described in detail below with reference to the drawings in combination with embodiments. The description herein is to be taken in a providing further understanding of the utility model and is made in the accompanying drawings, which illustrate and explain the utility model by way of example and not of limitation.
The automatic driving vehicle-mounted computing unit with the liquid cooling heat dissipation structure is arranged in a vehicle trunk, as shown in fig. 1-2, the automatic driving vehicle-mounted computing unit comprises a case 1 which is uniquely designed according to a vehicle type trunk, a main board 2 is arranged in the case 1, a CPU3, a GPU4, a memory bank 5 and other components are arranged on the main board 2, the CPU3, the GPU4 and the memory bank 5 are respectively inserted into corresponding slots on the main board 2, a data interface for external connection and a power interface for power connection are arranged on the side wall of the case 1, the inner end of the data interface is connected with the main board 2 or the GPU4, and the power interface is connected with the main board 2.
The utility model mainly comprises three designs, namely a liquid cooling system overall structure design, a high-temperature electronic element liquid cooling plate structure design and a vehicle-mounted computing unit server case structure design.
1. Firstly, the whole structure design of the liquid cooling system is designed by taking the cooling liquid of the motor liquid cooling system of the vehicle as a medium for transferring intermediate heat, introducing part of low-temperature cooling liquid of the motor liquid cooling system of the vehicle into a vehicle-mounted computing unit, cooling a CPU and a GPU through corresponding liquid cooling plates, finally taking heat generated by the CPU and the GPU out of the vehicle-mounted computing unit through the cooling liquid, radiating the heat by the motor liquid cooling system of the vehicle, forming low-temperature cooling liquid, and sending the low-temperature cooling liquid into the vehicle-mounted computing unit to complete the whole cycle.
The overall structure design of the liquid cooling system is divided into an external cooling structure design of the vehicle-mounted computing unit and an internal cooling structure design of the vehicle-mounted computing unit.
Referring to fig. 1-2, the internal cooling structure of the vehicle-mounted computing unit comprises a CPU liquid cooling plate 6, a GPU liquid cooling plate 7, a low-temperature cooling liquid inlet connector 8, a high-temperature cooling liquid outlet connector 9 and a cooling liquid drainage tube; the low-temperature cooling liquid inlet connector 8 and the high-temperature cooling liquid outlet connector 9 are embedded in the side wall of the case 1, the CPU liquid cooling plate 6 is attached to the upper surface of the CPU3, and the GPU liquid cooling plate 7 is attached to the side surface of the GPU 4; the CPU liquid cooling plate 6 and the GPU liquid cooling plate 7 are connected in series between the inner end of the low-temperature cooling liquid inlet connector 8 and the inner end of the high-temperature cooling liquid outlet connector 9 through corresponding cooling liquid drainage pipes.
As an embodiment of the present utility model, when 2 CPUs 3 and 2 GPUs 4 exist in the chassis 1, a corresponding CPU liquid cooling plate 6 is attached to the upper surfaces of the two CPUs 3, and a corresponding GPU liquid cooling plate 7 is attached to the side surfaces of the two GPUs 4; the two CPU liquid cooling plates 6 and the two GPU liquid cooling plates 7 are serially connected to drain, the inner end of the low-temperature liquid cooling liquid inlet joint 8 is connected with the liquid inlet of the first CPU liquid cooling plate 6 through a first liquid cooling drainage tube 10, the liquid outlet of the first CPU liquid cooling plate 6 is connected with the liquid inlet of the second CPU liquid cooling plate 6 through a second liquid cooling drainage tube 11, the liquid outlet of the second CPU liquid cooling plate 6 is connected with the liquid inlet of the first GPU liquid cooling plate 7 through a third liquid cooling drainage tube 12, the liquid outlet of the first GPU liquid cooling plate 7 is connected with the liquid inlet of the second GPU liquid cooling plate 7 through a fourth liquid cooling drainage tube 13, and the liquid outlet of the second GPU liquid cooling plate 7 is connected with the inner end of the high-temperature liquid cooling liquid outlet joint 9 through a fifth liquid cooling drainage tube 14.
As an embodiment of the present utility model, when a plurality of CPUs 3 and a plurality of GPUs 4 exist in the chassis 1, the CPU liquid cooling plates 6 may be sequentially connected in series through corresponding cooling liquid drainage main pipes, and the GPU liquid cooling plates 7 may be connected in parallel through corresponding cooling liquid drainage branch pipes. The inner end of the low-temperature cooling liquid inlet connector 8 is connected with the liquid inlet of the first CPU liquid cooling plate 6 through a corresponding cooling liquid drainage main pipe, the liquid outlet of the last CPU liquid cooling plate 6 is connected with the liquid inlet of each GPU liquid cooling plate 7 through a corresponding cooling liquid drainage main pipe and through the diversion of a corresponding cooling liquid tap, the liquid outlet of each GPU liquid cooling plate 7 is connected with the liquid inlet of each GPU liquid cooling plate 7 through a corresponding cooling liquid drainage branch pipe and then is connected with the inner end of the high-temperature cooling liquid outlet connector 9 through the confluence of the corresponding cooling liquid tap.
Referring to fig. 3, the external cooling structure of the vehicle-mounted computing unit includes an original liquid cooling heat dissipation system 27, a main low-temperature cooling liquid pipeline 28, a liquid separator 29 and a return high-temperature cooling liquid pipeline 32; the low-temperature cooling liquid outlet of the original liquid cooling heat dissipation system 27 of the vehicle is connected with the cooling liquid inlet of the liquid separator 29 through the low-temperature cooling liquid main pipeline 28, the cooling liquid outlet of the liquid separator 29 is respectively connected with the existing cooling pipeline 31 of the vehicle and the outer end of the low-temperature cooling liquid inlet connector 8 of the automatic driving vehicle-mounted computing unit through two corresponding low-temperature cooling liquid branch pipelines 30, and the outer end of the high-temperature cooling liquid outlet connector 9 of the automatic driving vehicle-mounted computing unit is connected with the high-temperature cooling liquid reflux port of the original liquid cooling heat dissipation system 27 of the vehicle through a high-temperature cooling liquid reflux pipeline 32.
As an embodiment of the utility model, the cooling liquid drainage pipes are all anti-corrosion, odorless and bendable drainage pipelines, so that the service life of the cooling liquid drainage pipes can be prolonged.
Meanwhile, the CPU liquid cooling plate 6 and the GPU liquid cooling plate 7 are connected in a serial-parallel connection mode in the case 1, so that in depth, the utility model also considers the bending angle of the cooling liquid drainage pipeline, thereby avoiding the reduction of the flow speed of the cooling system due to the excessively small bending angle.
All interfaces in the liquid separator 29 and drainage design are quickly connected by using a dripless connector, so that the operation reliability and the maintenance convenience are considered, the service life and the rigidity of the cold plate are prolonged, and the leakage caused by aging of the sealing ring is thoroughly avoided.
Secondly, the design of a high-temperature electronic element liquid cooling plate is adopted, in a vehicle-mounted computing unit for high-speed operation, a CPU and a GPU are main heating bodies, the CPU and the GPU can respectively generate heat of 100W and 250W, and the quantity of the CPU and the GPU is 2 in the vehicle-mounted computing unit. Therefore, aiming at two huge heating devices, namely a CPU and a GPU, the utility model adopts liquid cooling plate type heat dissipation, and a CPU liquid cooling plate 6 and a GPU liquid cooling plate 7 are specially designed.
Referring to fig. 4-5, the main body of the CPU liquid cooling plate 6 is a cooling liquid flow cross plate 15 with a size slightly larger than that of the CPU3, the lower surface of the cooling liquid flow cross plate 15 is a contact surface for being attached to the CPU3, the upper surface of the cooling liquid flow cross plate 15 is provided with a CPU liquid cooling plate cooling liquid inlet 16 and a CPU liquid cooling plate cooling liquid outlet 17, a first cavity is arranged in the cooling liquid flow cross plate 15, and a cooling liquid horizontal flow passage for cooling liquid to flow from the CPU liquid cooling plate cooling liquid inlet 16 to the CPU liquid cooling plate cooling liquid outlet 17 is arranged in the first cavity. The periphery of the cooling liquid flow diaphragm 15 is provided with a circle of edge 18, a locking screw 19 used for being fixedly connected with the main board 2 is respectively and downwards arranged on four vertex angles of the edge 18, each locking screw 19 is sleeved with a pressing spring 20, the lower end of each pressing spring 20 is in contact with the upper surface of the cooling liquid flow diaphragm 15, the upper end of each pressing spring 20 is in contact with the lower edge of a corresponding screw head of each locking screw 19, so that the cooling liquid flow diaphragm 15 can be tightly attached to the upper surface of the CPU3 in a floating mode, the cooling liquid flow diaphragm 15 can be stably attached to the CPU3, and the pressing force of the cooling liquid flow diaphragm 15 is not too large, so that the CPU3 is crushed.
Referring to fig. 6-7, the main body of the GPU liquid cooling plate 7 is a cooling liquid flowing vertical plate 21 with a size corresponding to that of the GPU4, a concave groove or a hollow structure for avoiding the convex capacitance on the GPU4 is arranged on the side surface of one half of the cooling liquid flowing vertical plate 21, a contact surface for being attached to the chip of the GPU4 is arranged on the side surface of the other half of the cooling liquid flowing vertical plate 21, a GPU liquid cooling plate cooling liquid inlet 22 and a GPU liquid cooling plate cooling liquid outlet 23 are arranged on the upper portion of the other half of the cooling liquid flowing vertical plate 21, a second cavity is arranged in the other half of the cooling liquid flowing vertical plate 21, and a cooling liquid vertical flow channel for cooling liquid to flow from the GPU liquid cooling plate cooling liquid inlet 22 to the GPU liquid cooling liquid outlet 23 is arranged in the second cavity. The cooling liquid flow vertical plate 21 is attached to the side surface of the GPU4, one end of the cooling liquid flow vertical plate 21 is fixedly connected with the side wall of the case 1 through the GPU liquid cooling plate side bracket 24, and the upper end of the cooling liquid flow vertical plate 21 is fixedly connected with the top cover plate of the case 1 through the GPU liquid cooling plate upper bracket 25.
As an embodiment of the present utility model, the first cavity in the CPU liquid cooling plate 6 and the second cavity in the GPU liquid cooling plate 7 may be designed as a serpentine or zigzag cooling liquid flowing path through which the cooling liquid flows, so that the cooling liquid may flow through the whole area of the contact surface on the CPU liquid cooling plate 6 or the GPU liquid cooling plate 7 as much as possible, and the cooling effect is ensured.
As an embodiment of the present utility model, the CPU liquid cooling plate 6 and the GPU liquid cooling plate 7 are both made of high heat conductive metal such as copper or aluminum.
3. Thirdly, the structural design of the server chassis of the vehicle-mounted computing unit.
Referring to fig. 1-2, a fan 26 for assisting heat dissipation is disposed on a side wall of the chassis 1, and since the vehicle-mounted computing unit server chassis 1 also has other electronic devices with low heat generation, the fan 26 provides a certain amount of residual air by using the power of the power supply device, and brings out the temperature.
The transparent observation window is embedded in the top cover plate of the chassis 1, so that maintenance personnel can observe the internal condition of the vehicle-mounted computing unit server chassis 1 under the condition of not opening the chassis.
The low-temperature cooling liquid inlet connector 8, the high-temperature cooling liquid outlet connector 9, the fan 26 and the power interface are all arranged on the right side wall of the case 1, and various data interfaces are all arranged on the left side wall of the case 1.
The machine case 1 is made of an anode wire drawing aluminum process material, so that the machine case is attractive in appearance and can avoid rusting caused by leakage of cooling liquid.
Because CPU liquid cooling board 6 is laminating at the upper surface of CPU3, GPU liquid cooling board 7 is laminating at the side surface of GPU4, and the size is equivalent with CPU3 and GPU4 respectively, consequently quick-witted case 1 can reduce whole quick-witted case height as far as to be enough to adapt to or compatible multiple motorcycle type's inner space.
The working process of the utility model is as follows:
taking a vehicle-mounted computing unit with 2 CPUs and 2 GPUs in the interior as an example, low-temperature cooling liquid is sent into a liquid separator 29 from an original liquid cooling heat dissipation system 27 of a vehicle through a low-temperature cooling liquid main pipeline 28, under the shunting of the liquid separator 29, one part of low-temperature cooling liquid is sent into an existing cooling pipeline 31 of the vehicle for cooling a motor through one low-temperature cooling liquid branch pipeline 30, and the other part of low-temperature cooling liquid is led to a low-temperature cooling liquid inlet connector 8 on a chassis 1 through the other low-temperature cooling liquid branch pipeline 30, so that the low-temperature cooling liquid enters the interior of the chassis 1 and is used for cooling the 2 CPUs and the 2 GPUs in the vehicle-mounted computing unit.
After the low-temperature cooling liquid is led to the low-temperature cooling liquid inlet connector 8, the low-temperature cooling liquid firstly flows into the first CPU liquid cooling plate 6 through the first cooling liquid drainage tube 10, at the moment, the cooling liquid is cooled by the first CPU3, then flows into the second CPU liquid cooling plate 6 from the first CPU liquid cooling plate 6 through the second cooling liquid drainage tube 11, at the moment, the cooling liquid is cooled by the second CPU3, then flows into the first GPU liquid cooling plate 7 through the third cooling liquid drainage tube 12, at the moment, the cooling liquid is cooled by the first GPU4, then flows into the second GPU liquid cooling plate 7 from the first GPU liquid cooling plate 7 through the fourth cooling liquid drainage tube 13, at the moment, the cooling liquid is cooled by the second GPU4, and finally, the high-temperature cooling liquid after heat exchange is led to the high-temperature cooling liquid outlet connector 9 through the fifth cooling liquid drainage tube 14.
After being led out of the case 1 through the high-temperature cooling liquid outlet connector 9, the high-temperature cooling liquid is led back to the original liquid cooling heat dissipation system 27 of the vehicle through the high-temperature cooling liquid return pipeline 32, then the high-temperature cooling liquid is subjected to heat dissipation treatment through the original liquid cooling heat dissipation system 27 of the vehicle, and finally the low-temperature cooling liquid is formed and sent into the case 1, so that the whole circulation is completed.
In the drainage design of the cooling liquid, the working liquid cooling is separated from the cooled object, and the working liquid cooling is not in direct contact with the electronic device, but transfers the heat of the cooled object to the refrigerant through the liquid cooling plate high-efficiency heat conduction component. Because the specific heat of liquid is larger than that of air, the heat dissipation speed is far higher than that of air, the refrigeration efficiency of the utility model is far higher than that of traditional air cooling heat dissipation, the heat quantity transmitted per unit volume is up to 1000 times, and the heat dissipation problem of a computing unit from a high-temperature and airtight environment can be solved.
Therefore, the liquid cooling system of the vehicle body, the automatic driving vehicle-mounted liquid cooling computing unit and the liquid drainage pipeline are matched, so that the high temperature generated by the automatic driving vehicle-mounted computing unit in operation can be greatly reduced, the components in the automatic driving vehicle-mounted computing unit can be protected, the automatic driving vehicle-mounted computing unit can be ensured to work normally, the visual window is designed, the interior of the case can be simply seen through, and the condition of the interior of the computing unit can be known in the first time during installation, testing and after-sale.
The cold night system and the applicable vehicle-mounted computing unit case structure are related to a specific vehicle type and are only applicable to a vehicle motor cabin or a trunk of the specific structure.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides an on-vehicle computing element of autopilot with liquid cooling heat radiation structure, includes a quick-witted case (1), the inside of machine case (1) is provided with mainboard (2), be provided with at least one CPU (3), at least one GPU (4), at least one memory stick (5), its characterized in that on mainboard (2): the CPU (3) is provided with a CPU liquid cooling plate (6) in a sticking mode on the upper surface, the GPU (4) is provided with a GPU liquid cooling plate (7) in a sticking mode on the side surface, a low-temperature cooling liquid inlet joint (8) and a high-temperature cooling liquid outlet joint (9) are arranged on the side wall of the case (1), and the CPU liquid cooling plate (6) and the GPU liquid cooling plate (7) are connected in series between the inner end of the low-temperature cooling liquid inlet joint (8) and the inner end of the high-temperature cooling liquid outlet joint (9) through corresponding cooling liquid drainage pipes; the CPU liquid cooling plate (6), the low-temperature cooling liquid inlet connector (8), the high-temperature cooling liquid outlet connector (9) and the cooling liquid drainage tube jointly form an internal liquid cooling heat dissipation structure of the vehicle-mounted computing unit.
2. The automated driving vehicle-mounted computing unit with liquid-cooled heat dissipation structure of claim 1, wherein: two CPUs (3) and two GPUs (4) are arranged on the main board (2), a corresponding CPU liquid cooling plate (6) is adhered to the upper surfaces of the two CPUs (3), and a corresponding GPU liquid cooling plate (7) is adhered to the side surfaces of the two GPUs (4); two CPU liquid cooling plates (6) and two GPU liquid cooling plates (7) adopt the serial drainage, the inner of low temperature coolant liquid feed-in connector (8) is through first coolant liquid drainage tube (10) with first piece the inlet connection of CPU liquid cooling plate (6), first piece the liquid outlet of CPU liquid cooling plate (6) is through second coolant liquid drainage tube (11) with the second piece the inlet connection of CPU liquid cooling plate (6), the second piece the liquid outlet of CPU liquid cooling plate (6) is through third coolant liquid drainage tube (12) with first piece the inlet connection of GPU liquid cooling plate (7), first piece the liquid outlet of GPU liquid cooling plate (7) is through fourth coolant liquid drainage tube (13) with the second piece the inlet connection of GPU liquid cooling plate (7), the liquid outlet of GPU liquid cooling plate (7) is through fifth coolant liquid drainage tube (14) with the inner connection of high temperature coolant liquid feed-in connector (9).
3. The automated driving vehicle-mounted computing unit with liquid-cooled heat dissipation structure of claim 1, wherein: the main part of CPU liquid cooling board (6) is a size slightly greater than cooling liquid flow diaphragm (15) of CPU (3), the lower surface of cooling liquid flow diaphragm (15) be used for with the contact surface that CPU (3) laminated mutually, the upper surface of cooling liquid flow diaphragm (15) is provided with CPU liquid cooling board cooling liquid inlet (16) and CPU liquid cooling board cooling liquid outlet (17), the inside of cooling liquid flow diaphragm (15) is provided with first cavity, be provided with in the first cavity and supply the coolant liquid to follow CPU liquid cooling board cooling liquid inlet (16) flow towards the coolant liquid horizontal runner of CPU liquid cooling board cooling liquid outlet (17).
4. An autopilot on-board computing unit having a liquid cooled heat sink structure as recited in claim 3 wherein: the cooling liquid flows around diaphragm (15) and is provided with round bordure (18), be equipped with one respectively downwards on four apex angles of bordure (18) be used for with locking screw (19) of mainboard (2) fixed connection, every all cover is equipped with hold-down spring (20) on locking screw (19), the lower extreme of hold-down spring (20) with the upper surface contact of diaphragm (15) is flowed to the cooling liquid, the upper end of hold-down spring (20) with the screw head lower edge contact of locking screw (19) that corresponds, so that cooling liquid flows diaphragm (15) floatingly and pastes tightly the upper surface of CPU (3).
5. The automated driving vehicle-mounted computing unit with liquid-cooled heat dissipation structure of claim 1, wherein: the main body of the GPU liquid cooling plate (7) is a cooling liquid flowing vertical plate (21) with the size corresponding to that of the GPU (4), a concave groove or a hollow structure for avoiding a convex capacitor on the GPU (4) is arranged on one half side of the cooling liquid flowing vertical plate (21), one side of the other half of the cooling liquid flowing vertical plate (21) is a contact surface for being attached to a chip of the GPU (4), a GPU liquid cooling plate cooling liquid inlet (22) and a GPU liquid cooling plate cooling liquid outlet (23) are arranged on the upper portion of the other half of the cooling liquid flowing vertical plate (21), a second cavity is formed in the other half of the cooling liquid flowing vertical plate (21), and a cooling liquid vertical flow channel for cooling liquid to flow from the GPU liquid cooling plate cooling liquid inlet (22) to the GPU liquid cooling plate cooling liquid outlet (23) is arranged in the second cavity.
6. The automated driving vehicle-mounted computing unit with liquid-cooled heat dissipation structure of claim 5, wherein: the cooling liquid flow vertical plate (21) is attached to the side surface of the GPU (4), one end of the cooling liquid flow vertical plate (21) is fixedly connected with the side wall of the chassis (1) through a GPU liquid cooling plate side bracket (24), and the upper end of the cooling liquid flow vertical plate (21) is fixedly connected with the top cover plate of the chassis (1) through a GPU liquid cooling plate upper bracket (25).
7. The automated driving vehicle-mounted computing unit with liquid-cooled heat dissipation structure of claim 1, wherein: a fan (26) for assisting in heat dissipation is arranged on the side wall of the case (1).
8. The automated driving vehicle-mounted computing unit with liquid-cooled heat dissipation structure of claim 1, wherein: a transparent observation window is embedded in the top cover plate of the case (1).
9. The automated driving vehicle-mounted computing unit with liquid-cooled heat dissipation structure of claim 1, wherein: the CPU liquid cooling plate (6) and the GPU liquid cooling plate (7) are both made of copper or aluminum, and the cooling liquid drainage pipes are all anti-corrosion, odorless and bendable drainage pipelines.
10. The automated driving vehicle-mounted computing unit with liquid-cooled heat dissipation structure of claim 1, wherein: the cooling liquid adopted by the liquid cooling heat dissipation structure in the computing unit is derived from an original liquid cooling heat dissipation system (27) of a vehicle, a low-temperature cooling liquid outlet of the original liquid cooling heat dissipation system (27) of the vehicle is connected with a cooling liquid inlet of a liquid separator (29) through a low-temperature cooling liquid main pipeline (28), the cooling liquid outlet of the liquid separator (29) is respectively connected with an existing cooling pipeline (31) of the vehicle and the outer end of a low-temperature cooling liquid inlet joint (8) of the automatic driving vehicle-mounted computing unit through two corresponding low-temperature cooling liquid branch pipelines (30), and the outer end of a high-temperature cooling liquid outlet joint (9) of the automatic driving vehicle-mounted computing unit is connected with a high-temperature cooling liquid reflux port of the original liquid cooling heat dissipation system (27) of the vehicle through a high-temperature cooling liquid reflux pipeline (32); the original liquid cooling heat dissipation system (27) of the vehicle, the low-temperature cooling liquid main pipeline (28), the liquid separator (29) and the high-temperature cooling liquid return pipeline (32) form an external cooling structure of the vehicle-mounted computing unit.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN120560458A (en) * | 2025-07-31 | 2025-08-29 | 苏州元脑智能科技有限公司 | Server chassis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN120560458A (en) * | 2025-07-31 | 2025-08-29 | 苏州元脑智能科技有限公司 | Server chassis |
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