WO2023230928A1 - 控制模组、散热系统及电子设备 - Google Patents
控制模组、散热系统及电子设备 Download PDFInfo
- Publication number
- WO2023230928A1 WO2023230928A1 PCT/CN2022/096485 CN2022096485W WO2023230928A1 WO 2023230928 A1 WO2023230928 A1 WO 2023230928A1 CN 2022096485 W CN2022096485 W CN 2022096485W WO 2023230928 A1 WO2023230928 A1 WO 2023230928A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuit board
- housing
- connector
- cold plate
- sealing
- Prior art date
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 77
- 238000007789 sealing Methods 0.000 claims abstract description 287
- 230000001681 protective effect Effects 0.000 claims description 61
- 239000003292 glue Substances 0.000 claims description 33
- 230000000694 effects Effects 0.000 abstract description 36
- 238000012423 maintenance Methods 0.000 abstract description 20
- 238000000034 method Methods 0.000 description 35
- 238000001816 cooling Methods 0.000 description 30
- 238000003466 welding Methods 0.000 description 22
- 239000000110 cooling liquid Substances 0.000 description 17
- 230000008439 repair process Effects 0.000 description 16
- 239000007788 liquid Substances 0.000 description 14
- 230000004308 accommodation Effects 0.000 description 10
- 239000002274 desiccant Substances 0.000 description 10
- 238000004891 communication Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 7
- 230000020169 heat generation Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 239000002826 coolant Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 230000001788 irregular Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 241000156302 Porcine hemagglutinating encephalomyelitis virus Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011022 operating instruction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002470 thermal conductor Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
Definitions
- This application relates to the field of heat dissipation technology, and in particular to a control module, heat dissipation system and electronic equipment.
- controllers can be used to interconnect information inside electronic devices and between electronic devices and the outside.
- the workload of the controller has greatly increased, resulting in a significant increase in heat generation.
- on-board electronic devices in smart cars such as radars, cameras, motors, anti-lock braking systems, four-wheel drive systems, electronically controlled automatic transmissions, active suspension systems, airbag systems, and multi-directional adjustable powertrains. Control seats, etc.
- These electronic devices are usually connected to the electronic control unit (also called the driving computer).
- the amount of data that the electronic control unit needs to process is increasing, and the demand for computing power of the electronic control unit is also increasing.
- This application provides a control module with good heat dissipation effect and small size.
- the present application provides a control module, which includes a cold plate, a first housing, a first circuit board, a second housing and a second circuit board.
- the cold plate includes a first surface and a second surface arranged along the thickness direction; the first housing is located on the same side of the first surface and surrounds the first surface to form a first receiving space.
- the first housing and the cold plate are sealed and detachably connected; the first circuit board is located in the first receiving space and detachably connected to the first housing, and the first circuit board
- a first chip is provided on the side facing the first surface.
- a first thermal conductive structure is provided between the first chip and the first surface. The cold plate passes through the first thermal conductive structure to form the first thermal conductive structure.
- the second housing is located on the same side of the second surface and surrounds the second surface to form a second receiving space.
- the second housing and the cold plate are sealed and detachable.
- Connection; the second circuit board is located in the second receiving space and is detachably connected to the second housing, and a second chip is provided on the side of the second circuit board facing the second surface, There is a second thermal conductive structure between the second chip and the second surface, and the cold plate dissipates heat for the second chip through the second thermal conductive structure.
- the cold plate can maintain a lower temperature for cooling the first chip and the second chip, and can also be used for cooling the first circuit board and the second circuit board.
- the temperature of the cold plate can be adjusted according to the heat generation conditions of the first chip and the second chip to achieve a better cooling effect.
- the first surface and the second surface of the cold plate are arranged opposite each other along a first direction.
- the cold plate is a rectangular parallelepiped, and the first direction is the thickness direction of the cold plate, The first surface and the second surface are the two surfaces with the largest areas in the cold plate, which can reduce the volume of the cold plate while ensuring high cooling efficiency.
- the cold plate has a hollow structure, and a cooling liquid is provided inside.
- the cold plate is also provided with a liquid inlet and a liquid outlet, and the first chip and the third chip are cooled by the cooling liquid.
- the two chips implement heat exchange to cool the first chip and the second chip.
- the cold plate may also have other shapes. Specifically, the shape of the cold plate may be adjusted according to the first housing, the second housing and the surrounding environment.
- the cold plate is an air-cooled cold plate.
- a fan is provided in the cold plate, and the fan drives the air flow inside and outside the cold plate to circulate to achieve heat exchange and cool the first chip and the second chip.
- the circuit board and the housing together are called an electronic control unit, that is, the first circuit board and the first housing are called a first electronic control unit, and the second circuit board is called a first electronic control unit.
- the second housing and the second electronic control unit are called a second electronic control unit, and the first electronic control unit and the second electronic control unit can be respectively used to control an automatic driving system, a vehicle entertainment system, a communication system, etc.
- the first circuit board may also be individually referred to as a first electronic control unit
- the second circuit board may be referred to as a second electronic control unit.
- the first electronic control unit and the second electronic control unit can be used to control other functional systems or control multiple functional systems as needed.
- Electronic control units can also coordinate and control the same functional system.
- the first circuit board, the second circuit board and the cold plate are arranged in parallel or approximately parallel, the first chip is fixed on the first circuit board and is electrically connected to the first circuit board, and the third One or more first chips may be provided on a circuit board, and the functions of the plurality of first chips may be the same or different; the second chip is fixed on the second circuit board and connected with the The second circuit board is electrically connected. One or more second chips may be provided on the second circuit board.
- the functions of the plurality of first chips may be the same or different, and the second chip
- the number and functions of the first chips may be the same or different, and this application does not limit this.
- the heat source in the control module is mainly the heat generated by the first chip and the second chip. Therefore, the first chip and the second chip are directly dissipated to cool the first electronic control unit. and the second electronic control unit. Since the heat dissipation effect of the first chip and the second chip in direct contact with the cold plate is poor, and if different first chips or different second chips are in the first direction, The thicknesses are different, and chips with smaller thicknesses are difficult to fit with the cold plate, resulting in some chips not being able to achieve better heat dissipation effects.
- the first thermal conductive structure is added to one side of a circuit board
- the second thermal conductive structure is added to the side of the second chip away from the second circuit board along the first direction.
- the third thermal conductive structure is The arrangement of a thermal conductive structure and the second thermal conductive structure can fill the air gap between the chip and the cold plate.
- the thermal conductive structure can cover the uneven surface of the chip, increase the heat dissipation area of the chip, and make the heat of the chip more efficient.
- the heat is well conducted to the cold plate for heat dissipation, thereby improving the efficiency and service life of the electronic control unit; on the other hand, the setting of the thermal conductive structure ensures that each chip of different thicknesses can indirectly contact the cold plate.
- the first thermal conductive structure can be used to support the first chip
- the second thermal conductive structure can be used to support the second chip, lifting the first circuit board and the third 2. The structural strength of the circuit board.
- the first thermally conductive structure and the second thermally conductive structure have characteristics such as flexibility and elasticity, so that the first thermally conductive structure can cover the first chip and move away from the first chip in the first direction.
- the entire surface of the first circuit board, the second thermally conductive structure covers the entire surface of the second chip away from the second circuit board along the first direction, so that the first chip and the second chip can Achieve better heat dissipation.
- a thermal conductive structure can also be added at the corresponding position to transfer the heat at that position through the thermal conductor. The structure is transferred to the cold plate for heat dissipation.
- the first surface and the second surface of the cold plate are fully utilized to cool the first chip and the second chip respectively, which can save energy consumption, and compared with using only one cold plate
- one cold plate can be used to cool two electronic control units, making the control module smaller in size to meet the needs of small-sized scenarios and facilitate installation.
- the first housing is used to protect the first circuit board and prevent the first circuit board from being damaged due to impact with external devices, and the first housing and the first surface are surrounded together to form the second circuit board.
- a storage space is a closed space, on the one hand, the first circuit board can be sealed and isolated from the external environment, so that the first circuit board can achieve the purpose of dustproof and waterproof.
- the sealing level of the first circuit board can also reach IP67 or above, and the first containing space can also prevent external moisture from entering the first containing space and condensing due to too low temperature.
- the cold plate not only plays a cooling role, but also serves as a part surrounding the first receiving space, achieving Making full use of the cold plate, and at the same time, the first thermal conductive structure is directly connected to the cold plate, which can achieve a better heat dissipation effect.
- the cold plate can also cool the first receiving space. air inside to reduce the temperature of the first circuit board.
- a desiccant is placed in the first receiving space for removing moisture in the first receiving space, ensuring that the first receiving space is in a dry state, and preventing the first receiving space from drying out.
- detachable connection means that two connected components can be separated without being damaged.
- detachable connection between the first housing and the cold plate means that during normal use, the first housing and the cold plate Relatively fixed, when maintenance is required, the first housing and the cold plate can be separated without damaging the first housing or the cold plate. Since the first housing and the cold plate are detachably connected and the first circuit board is detachably connected to the first housing, when the first circuit board fails, the first circuit board can be detachably connected. The first circuit board is completely removed from the first housing for repair without damaging the first housing and the first circuit board, which improves the convenience of repairing the first circuit board. , or when the first circuit board needs to be replaced, the old first housing can be reused to reduce costs. At the same time, when the first housing is damaged, only the first housing can be replaced. body, and the first circuit board can be disassembled and assembled into the new first housing.
- the second housing is used to protect the second circuit board and prevent the second circuit board from being damaged due to impact with external devices, and the second housing and the second surface are surrounded together to form the second circuit board.
- the second storage space is a closed space.
- the second circuit board can be sealed and isolated from the external environment, so that the second circuit board can achieve the purpose of dustproof and waterproof.
- the sealing level of the first circuit board can also reach IP67 or above, and the second containing space can also prevent external moisture from entering the second containing space and condensing to the location due to excessively low temperature.
- the second circuit board causes damage to the second circuit board; on the other hand, the cold plate not only plays a cooling role, but also serves as a part of the surrounding second receiving space to realize the cooling of the cold plate.
- the second thermal conductive structure is directly connected to the cold plate, which can achieve a better heat dissipation effect.
- the cold plate can also cool the air in the second accommodation space to reduce the heat dissipation.
- a desiccant may also be placed in the second accommodation space to remove moisture in the second accommodation space. Since the second housing is detachably connected to the cold plate and the second circuit board is detachably connected to the second housing, when the second circuit board fails, the second circuit board can be detachably connected.
- the second circuit board is completely removed from the second housing for repair without damaging the second housing and the second circuit board, which improves the convenience of repairing the second circuit board. , or when the second circuit board needs to be replaced, the old second housing can be reused to reduce costs. At the same time, when the second housing is damaged, only the second housing can be replaced. body, and the second circuit board can be disassembled and assembled into the new second housing.
- the second housing and the first housing are equal in size and shape, and the orthographic projection of the second housing and the first housing on the cold plate covers the cold plate.
- the surface of the cold plate can maximize the utilization of the cold plate.
- the orthographic projection of the first housing on the cold plate is located within the first surface, or the orthographic projection area of the first housing on the cold plate is smaller than the area of the first surface, and the orthographic projection of the second housing on the cold plate is located on the first surface.
- the orthogonal projected area of the second housing on the cold plate is smaller than the area of the second surface.
- the orthogonal projected area of the first housing on the cold plate is greater than the area of the first surface, and the orthogonal projected area of the second housing on the cold plate is greater than the area of the second surface.
- the control module integrateds two electronic control units.
- the two electronic control units share a cold plate, which has good heat dissipation effect, and the control module is smaller in size to adapt to the needs of small-size scenarios and facilitate Install.
- it ensures the sealing and maintenance convenience of the circuit board, realizes the waterproof and dustproof of the electronic control unit, facilitates disassembly and assembly, and facilitates maintenance, ensuring that the electronic control unit works efficiently and stably, and can also save energy consumption and reduce costs.
- control module further includes a first sealing structure located between the first housing and the first surface for sealing the first housing and said first surface.
- the first sealing structure is hollow annular, and the first receiving space is sealed through the first sealing structure.
- the first sealing structure may be a sealing strip.
- the first sealing structure is located at the edge of the first surface, so that most of the first surface serves as the bottom of the first receiving space to improve the heat dissipation effect.
- the first housing and the first surface are connected by bolts, and the first housing and the first surface are detached and connected by disassembling and assembling bolts.
- the first sealing structure performs sealing to achieve a sealed and detachable connection between the first housing and the first surface, and can adjust the pressing degree of the first housing and the first surface. , so that the first sealing structure, the first shell and the first surface are both interference-fitted to achieve a better sealing effect.
- the first sealing structure is a sealing strip.
- the sealing strip is not fixedly connected to the first surface and the first shell.
- the first shell and the third shell are connected by bolts.
- One surface is locked, and the sealing strip is pressed tightly and squeezed between the first housing and the first surface to achieve sealing between the first housing and the first surface, that is, After the first housing and the first surface are detachably connected through bolts, the first housing and the first surface are sealed through the first sealing structure.
- the bolts can be removed first, and then the first housing can be removed from the cold plate, and then the first circuit board can be repaired.
- a standard installation interface is used between the cold plate and the first housing, so that one cold plate can be adapted to different types of first housings.
- the first housing and the first surface may also be connected through buckles or other methods.
- the first sealing structure is fixedly connected to the first housing and then abuts against the first surface. The position of the first sealing structure is relatively fixed, which can achieve a more stable sealing effect.
- the first sealing structure can also be fixedly connected to the first surface and then abutted against the first housing. The position of the first sealing structure is relatively fixed, which can achieve a more stable implementation. Sealing effect.
- the first surface is provided with a groove that is recessed toward the second surface along the first direction, the first sealing structure is located in the groove, and the first housing is formed along the groove.
- the surface close to the first surface in the first direction is provided with a boss, and the boss presses the first sealing structure in the groove to achieve sealing between the first shell and the first surface, and the The first sealing structure has an interference fit with both the groove and the boss.
- the first surface may also be provided with a boss protruding toward the first housing along the first direction, and the first housing is close to the first housing along the first direction.
- the first surface is provided with a groove, the first sealing structure is located in the groove, and the boss presses the first sealing structure in the groove to realize the contact between the first shell and the first surface. seal.
- the cross-sectional shape of the first sealing structure may also be circular, elliptical, square, etc.
- the first sealing structure is not fixedly connected to the first housing and the first surface, or the first sealing structure is only connected to The first shell or the first surface is fixedly connected to achieve a sealed and detachable connection between the first shell and the first surface.
- the first circuit board fails, all the The first circuit board is completely removed from the first housing for repair without damaging the first housing and the first circuit board, which improves the convenience of repairing the first circuit board.
- the first sealing structure for sealing has high disassembly and assembly efficiency, and the first sealing structure has a certain elasticity and softness, even if the first surface or the first shell is along the If the surface in the first direction close to the first surface is uneven, it can also achieve a better sealing effect and has strong adaptability.
- control module further includes a second sealing structure located between the second housing and the second surface for sealing the second housing and said second surface.
- the second sealing structure is hollow annular, and the second receiving space is sealed by the second sealing structure.
- the second sealing structure may be a sealing strip.
- the second sealing structure is located at the edge of the second surface, so that most of the second surface serves as the bottom of the second receiving space to improve the heat dissipation effect.
- the shape, material, size and other characteristics of the second sealing structure may be the same as or different from the first sealing structure.
- the second housing and the second surface are connected by bolts, and the disassembly and connection of the second housing and the second surface are achieved by disassembling and assembling bolts.
- the second sealing structure performs sealing to achieve a sealed and detachable connection between the second housing and the second surface, and can adjust the pressing degree of the second housing and the second surface. , so that the second sealing structure has an interference fit with the second housing and the second surface to achieve a better sealing effect.
- the second sealing structure is a sealing strip.
- the sealing strip is not fixedly connected to the second surface and the second shell.
- the second shell and the second shell are connected by bolts.
- the two surfaces are locked, and the sealing strip is pressed tightly and squeezed between the second housing and the second surface to achieve sealing between the second housing and the second surface, that is, After the second housing and the second surface are detachably connected through bolts, the second housing and the second surface are sealed through the second sealing structure.
- the bolts can be disassembled first, and then the second housing can be removed from the cold plate, and then the second circuit board can be repaired.
- a standard installation interface is used between the cold plate and the second housing, so that one cold plate can be adapted to different types of second housings.
- the second housing and the second surface may also be connected through buckles or other methods.
- the second sealing structure is fixedly connected to the second housing and then abuts against the second surface. The position of the second sealing structure is relatively fixed, which can achieve a more stable sealing effect.
- the second sealing structure can also be fixedly connected to the second surface and then abutted against the second housing. The position of the second sealing structure is relatively fixed, which can achieve a more stable implementation. Sealing effect.
- the second surface is provided with a groove that is recessed toward the first surface along the first direction, the second sealing structure is located in the groove, and the second housing is formed along the groove.
- the surface close to the second surface in the first direction is provided with a boss, and the boss presses the second sealing structure in the groove to achieve sealing between the second housing and the second surface.
- the sealing structure, grooves and bosses all have an interference fit.
- the second surface may also be provided with a boss protruding toward the second housing along the first direction, and the second housing is close to the second housing along the first direction.
- the second surface is provided with a groove, the second sealing structure is located in the groove, and the boss presses the second sealing structure in the groove to achieve the contact between the second housing and the second surface. seal.
- the second sealing structure is not fixedly connected to the second housing and the second surface, or the second sealing structure is only connected to The second housing or the second surface are fixedly connected to achieve a sealed and detachable connection between the second housing and the second surface.
- the second circuit board fails, all the The second circuit board is completely removed from the second housing for repair without damaging the second housing and the second circuit board, which improves the convenience of repairing the second circuit board.
- the second sealing structure for sealing has high disassembly and assembly efficiency, and the second sealing structure has a certain elasticity and softness, even if the second surface or the second shell is along the If the surface of the first direction close to the second surface is uneven, it can also achieve a better sealing effect and have strong adaptability.
- the control module further includes a first connector, the first connector is passed through the first housing, and both ends of the first connector are respectively located at Between the inside of the first receiving space and the outside world, a third sealing structure is provided on the periphery of the first connector, and the third sealing structure is connected to the first housing to realize the separation between the first receiving space and the outside world. of isolation.
- the first connector is used to realize information exchange between the first circuit board and the outside world
- the first connector is electrically connected to the first circuit board inside the first receiving space
- the third A connector extends from the inside of the first receiving space to the outside of the first receiving space, and the first connector and the first housing are sealed by the third sealing structure.
- the electronic control unit also includes a connector, that is, the first circuit board, the first housing and the first connector are collectively referred to as the first electronic control unit.
- the first connector may be a CAN connector, an Ethernet connector, a camera connector, or the like.
- the control module may include a plurality of first connectors, and the plurality of first connectors may be connectors of the same type or connectors of different types. In order to make all The control module can be adapted to various situations, and can preset a larger number or multiple types of first connectors, and then select some of the first connectors for use according to actual needs.
- the first connector may also be a standardized connector, and the number of first connectors may be increased or decreased to adapt to the requirements for the number of first connectors in different situations.
- the first housing includes a first surrounding frame and a first cover located on the first surrounding frame away from the first surface, the first surrounding frame, the first cover and the first surface enclose the first receiving space, and the first connector is provided on the first surrounding frame.
- the first housing is provided with a first opening connected to the first receiving space
- the third sealing structure is glue
- the first connector passes through the Glue is fixed in the first opening, and one end of the first connector extends into the first receiving space and is detachably connected to the first circuit board.
- the first opening is provided on the first enclosure, and the first connector is fixedly connected to the first enclosure by dispensing glue.
- the first circuit board is connected to the first enclosure.
- the device is configured to be detachably connected to ensure the convenience of maintenance of the first circuit board.
- the first connector can also be fixed on the first housing by welding or other methods, or the first connector and the first housing can be integrally formed.
- the control module further includes a first connection board and a first circuit board connector provided on the first connection board.
- the first connection board is connected to the first connection board.
- the first circuit board and the first connection board are detachably connected through the first circuit board connector.
- the first connecting plate is fixedly connected to the first connector by welding or glue.
- the first connector can also be fixedly connected to the first connecting plate by welding or glue.
- the connection method of the first connector and the first housing is not limited, and the first connector and the first housing are detachably connected or non-detachable, which does not affect the first Disassembly and assembly of circuit boards.
- the first connection board may be an ordinary conductive plate, and no devices are provided on the first connection board, or there are only a small number of highly reliable passive devices on the first connection board.
- the first circuit board connector may be a BTB connector
- the first circuit board is located on a side of the first circuit board connector adjacent to the first surface.
- the first housing can be directly removed from the cold plate. , and then pull out the first circuit board in the first direction away from the first cover. This disassembly method is convenient and will not damage the first circuit board.
- the third sealing structure includes a first sealing strip and a first protective cover
- the first housing is provided with a first opening communicating with the first receiving space
- the first connector is inserted into the first opening, and one end of the first connector extends into the first receiving space and is fixed to the first circuit board.
- the other end extends to the outside of the first receiving space
- the first protective cover is provided at an end of the first connector away from the first circuit board, and the first protective cover is connected to the first The surface of the housing away from the first circuit board is sealed by the first sealing strip.
- part of the first connectors is located in the first receiving space, and another part of the first connectors is located in the first protective cover.
- the first protective cover is connected to the first protective cover through the first sealing strip.
- the first housing is sealed and detachably connected. By arranging the first sealing strip and the first protective cover, the first receiving space and the space in the first protective cover are sealed. , at this time, the first connector and the first housing are arranged in contact, the first connector and the first housing are not non-detachably connected, and the first connector can be directly welded on When disassembling the first circuit board, the first housing can be directly removed from the cold plate, the first protective cover can be removed, and then the first circuit board and the first circuit board can be removed. The first connector is removed from the first housing together.
- the first sealing strip may be pre-fixed on the first housing, and the first protective cover abuts against the first sealing strip to achieve sealing.
- a sealing strip may be entirely located on the first enclosure frame, or may be partially located on the first enclosure frame and partially located on the first cover plate.
- the first sealing strip is pre-fixed on the first protective cover, and the first sealing strip abuts against the first housing to achieve sealing.
- a cable is provided on an end of the first connector away from the first circuit board, and an opening is provided on a side of the first protective cover away from the first circuit board to accommodate the passage of the cable.
- the cables and openings can be sealed and fixed by dispensing glue.
- the sealed connection method between the first connector and the first housing provided in this application is simpler to implement and more operable.
- the first housing includes a first surrounding frame and a first cover located on the first surrounding frame away from the first surface, the first surrounding frame, the third A cover plate and the first surface enclose the first receiving space; a fifth sealing structure is also provided between the first surrounding frame and the first cover plate, and the fifth sealing structure is located on the Between the first surrounding frame and the first cover plate, and detachably connected to the first surrounding frame and the first cover plate respectively, the fifth sealing structure is used to seal the first surrounding frame and the first cover plate.
- the first cover plate is used to seal the first surrounding frame and the first cover plate.
- the first surrounding frame is sealed and detachably connected to the first surface.
- the first cover is located on the side of the first surrounding frame away from the first surface along the first direction.
- the first cover plate is parallel or approximately parallel to the first surface.
- control module further includes the first connection board and the first circuit board connector provided on the first connection board, and the first connection board is connected to the first circuit board connector.
- the connector is fixedly connected, the first circuit board and the first connection board are detachably connected through the first circuit board connector, and the first circuit board is located away from the first circuit board connector and away from the first circuit board connector.
- One side of a surface When disassembling the first circuit board, directly remove the first cover, and then pull out the first circuit board in the first direction away from the cold plate. This disassembly method is convenient and convenient. , the first circuit board will not be damaged, and the first housing does not need to be removed from the cold plate.
- control module further includes a second connector, the second connector is passed through the second housing, and both ends of the second connector are respectively located at Between the inside of the second receiving space and the outside world, a fourth sealing structure is provided on the periphery of the second connector, and the fourth sealing structure is connected to the second housing to realize the separation between the second receiving space and the outside world. of isolation.
- the second connector is used to realize information exchange between the second circuit board and the outside world, the second connector is electrically connected to the second circuit board inside the second receiving space, and the second circuit board is electrically connected to the second circuit board inside the second receiving space.
- Two connectors extend from the inside of the second receiving space to the outside of the second receiving space, and the second connector and the second housing are sealed by the fourth sealing structure.
- the electronic control unit also includes a connector, that is, the second circuit board, the second housing and the second connector are collectively referred to as the first electronic control unit.
- the second connector may be a CAN connector, an Ethernet connector, a camera connector, or the like.
- the control module may include a plurality of second connectors, and the plurality of second connectors may be connectors of the same type or connectors of different types. In order to make all the second connectors The control module can be adapted to various situations, and can preset a larger number or multiple types of second connectors, and then select some of the second connectors for use according to actual needs.
- the second connector may also be a standardized connector, and the number of second connectors may be increased or decreased to adapt to the requirements for the number of second connectors in different situations.
- the second housing includes a second surrounding frame and a second cover located on the second surrounding frame away from the first surface, the second surrounding frame, the second cover and the first surface enclose the second receiving space, and the second connector is provided on the second surrounding frame.
- the second housing is provided with a second opening connected to the second receiving space
- the fourth sealing structure is glue
- the second connector is passed through glue dispensing It is fixed in the second opening, and one end of the second connector extends into the second receiving space and is detachably connected to the second circuit board.
- the second opening is provided on the second enclosure, and the second connector is fixedly connected to the second enclosure by dispensing glue.
- the second circuit board is connected to the second enclosure.
- the device is configured to be detachably connected to ensure the convenience of maintenance of the second circuit board.
- the second connector can also be fixed on the second housing by welding or other methods, or the second connector and the second housing can be integrally formed.
- control module further includes a second connection board and a second circuit board connector provided on the second connection board.
- the second connection board is connected to the second connection board.
- the second circuit board and the second connection board are detachably connected through the second circuit board connector.
- the second connecting plate is fixedly connected to the second connector by welding or glue dispensing.
- the second connector can also be fixedly connected to the second connecting plate by welding or glue dispensing.
- the connection method between the second connector and the second housing is not limited.
- the second connector and the second housing are detachably connected or non-detachably connected, which does not affect the second connector. Disassembly and assembly of circuit boards.
- the second connection board may be an ordinary conductive plate, and no devices are provided on the second connection board, or there are only a small number of highly reliable passive devices on the second connection board.
- the second circuit board connector may be a BTB connector.
- the second circuit board is located on a side of the second circuit board connector adjacent to the second surface.
- the second housing and the cold plate are detachably connected through the second sealing structure, the second housing can be directly detached from the cold plate. , and then pull out the second circuit board in the first direction away from the second cover. This disassembly method is convenient and will not damage the second circuit board.
- the fourth sealing structure includes a second sealing strip and a second protective cover
- the second housing is provided with a second opening communicating with the second receiving space
- the second connector is inserted into the second opening, one end of the second connector extends into the second receiving space and is fixed to the second circuit board, and the other end of the second connector extends into the second receiving space and is fixed to the second circuit board.
- One end extends to the outside of the second receiving space
- the second protective cover is disposed on an end of the second connector away from the second circuit board, and the second protective cover and the second housing The surfaces away from the second circuit board are sealed by the second sealing tape.
- part of the second connectors is located in the second receiving space, and another part of the second connectors is located in the second protective cover.
- the second protective cover is connected to the second protective cover through the second sealing strip.
- the second housing is sealed and detachably connected. By arranging the second sealing strip and the second protective cover, the second receiving space and the space in the second protective cover are sealed. , at this time, the second connector and the second housing are arranged in contact, the second connector and the second housing are not non-detachably connected, and the second connector can be directly welded on When disassembling the second circuit board, the second housing can be directly removed from the cold plate, the second protective cover is removed, and then the second circuit board and the second circuit board can be removed. The second connector is removed from the second housing together.
- the second sealing tape can be pre-fixed on the second housing, and the second protective cover abuts against the second sealing tape to achieve sealing.
- the two sealing strips may be entirely located on the first enclosure frame, or may be partially located on the first enclosure frame and partially located on the first cover plate.
- the second sealing strip is pre-fixed on the second protective cover, and the second sealing strip abuts against the second housing to achieve sealing.
- an end of the second connector away from the second circuit board is provided with a cable, and an opposite side of the second protective cover away from the second circuit board is provided with an opening to accommodate the passage of the cable.
- the cables and openings can be sealed and fixed by dispensing glue.
- the first electronic control unit and the second electronic control unit are sealed and fixed to the cold plate in different ways.
- the third electronic control unit A circuit board and the first connection board are detachably connected through the first circuit board connector, and the first connector is sealed and fixedly connected to the first housing through glue dispensing or welding;
- the second connector is fixedly connected to the second circuit board by welding, the fourth sealing structure includes the second sealing strip and the second protective cover, and the second The protective cover and the second housing are sealed by the second sealing tape, so that the second receiving space and the space in the second protective cover are sealed.
- the sealed connection method between the second connector and the second housing provided in this application is simpler to implement and more operable.
- the second housing includes a second enclosing frame and a second cover located on the second enclosing frame away from the second surface, the second enclosing frame, the third The second cover and the second surface enclose the second receiving space; a sixth sealing structure is also provided between the second enclosure and the second cover, and the sixth sealing structure is located on the Between the second surrounding frame and the second cover plate, and detachably connected to the second surrounding frame and the second cover plate respectively, the sixth sealing structure is used to seal the second surrounding frame and the second cover plate.
- the second cover plate The second enclosure is sealed and detachably connected to the second surface.
- the second cover is located on a side of the second enclosure away from the second surface along the first direction. In one embodiment, , the second cover plate is parallel or approximately parallel to the second surface.
- control module further includes a second connection board and a second circuit board connector provided on the second connection board, and the second connection board is fixedly connected to the second connector.
- the second circuit board and the second connection board are detachably connected through the second circuit board connector, and the second circuit board is located on a side of the second circuit board connector away from the second surface. side.
- this application provides a heat dissipation system.
- the heat dissipation system includes a heat dissipation component and a control module as described in any one of the above.
- the heat dissipation component is used to dissipate heat to the cold plate so that the cold plate Cool the first circuit board and the second circuit board.
- the heat dissipation component includes a cooling pipeline and a pump. There is cooling liquid in the cooling pipeline.
- the cold plate is connected to the cooling pipeline.
- the pump is used to drive the cooling liquid in the cooling pipeline.
- the heat of the cold plate can be taken away, thereby reducing the temperature of the cold plate.
- the pump provides power for the circulation of the coolant.
- the heat dissipation system also It includes a cooler, and the cold plate is also provided with a liquid inlet and a liquid outlet. Under the action of the pump, the cooling liquid circulates between the cooler and the cold plate, and the heat of the cold plate is Transfer to the cooler, which converts the inflowing higher-temperature cooling liquid into lower-temperature cooling liquid and discharges it. The lower-temperature cooling liquid enters the cold plate through the liquid inlet. In order to cool the first circuit board and the second circuit board, the cooling liquid with a higher temperature in the cold plate flows out to the cooler through the liquid outlet for cooling so as to continue to participate in the circulation.
- the heat dissipation system may include one or more of the control modules.
- the present application provides an electronic device, which includes a device body and a heat dissipation system as described above, and the heat dissipation system is installed on the device body.
- the present application provides a vehicle, which includes a vehicle frame and a heat dissipation system as described above, and the heat dissipation system is installed on the vehicle frame.
- the control module integrates two electronic control units, and the cold plate dissipates heat for the two electronic control units at the same time, which can reduce the volume and facilitate installation.
- the first housing, the second housing and the cold plate are sealed and detachably connected to ensure the sealing of the circuit board, and the detachable connection between the first housing, the second housing and the cold plate ensures
- the convenience of maintenance of the circuit board makes the electronic control unit waterproof and dustproof, easy to disassemble and repair, and ensures that the electronic control unit works efficiently and stably.
- Figure 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
- FIG. 2 is an exploded view of a control module provided by an embodiment of the present application.
- Figure 3 is a cross-sectional view of a control module provided by an embodiment of the present application.
- Figure 4 is a schematic diagram of the first housing, the second housing and the cold plate provided by an embodiment of the present application;
- Figure 5 is a schematic diagram of the first housing and the cold plate provided by an embodiment of the present application.
- Figure 6 is a cross-sectional view of a control module provided by an embodiment of the present application.
- Figure 7 is a cross-sectional view of a control module provided by an embodiment of the present application.
- Figure 8 is a cross-sectional view of a control module provided by an embodiment of the present application.
- Figure 9 is a cross-sectional view of a control module provided by an embodiment of the present application.
- FIG. 10 is a schematic diagram of a heat dissipation system provided by an embodiment of the present application.
- Figure 11 is a cross-sectional view of the cold plate, the first housing and the second housing in the control module provided by an embodiment of the present application.
- Electronic control unit Electronic Control Unit (ECU), also known as “driving computer”, “vehicle computer”, etc. In terms of purpose, it is a special microcomputer controller for automobiles.
- ECU Electronic Control Unit
- driving computer driving computer
- vehicle computer vehicle computer
- CAN is the abbreviation of Controller Area Network, which is the controller area network.
- IP67 refers to the protection safety level. IP is the abbreviation of Ingress Protection Rating (or International Protection code), which defines the ability of an interface to protect against liquid and solid particles. IP67 refers to protection against dust inhalation (overall protection against contact and dust penetration); protection against short-term immersion (anti-immersion).
- the present application provides a control module.
- the control module includes a cold plate, a first housing, a first circuit board, a second housing and a second circuit board.
- the cold plate includes a first surface and a third surface arranged along the thickness direction. Two surfaces, the first shell and the first surface are surrounded to form a first receiving space, the second shell and the second surface are surrounded to form a second receiving space, the first shell and the second shell are both sealed with the cold plate and Detachable connection, the first circuit board and the second circuit board are located in the first receiving space and the second receiving space respectively, the first circuit board is provided with a first chip and a first thermal conductive structure, between the first chip and the first surface It has a first thermal conductive structure, the cold plate dissipates heat for the first chip through the first thermal conductive structure, the second circuit board is provided with a second chip and a second thermal conductive structure, and the cold plate dissipates heat for the second chip through the second thermal conductive structure.
- the control module of the present application can be applied to electronic equipment.
- the electronic equipment includes a device body and a control module.
- the control module is installed on the device body.
- Electronic equipment includes vehicles, transportation equipment, and robots.
- the control module may be a vehicle-mounted control module.
- the following uses electronic equipment as a vehicle as an example.
- more and more electronic equipment are installed on the vehicle, such as radar, cameras, motors, anti-lock braking systems, four-wheel drive systems, electronically controlled automatic Transmissions, active suspension systems, airbag systems, multi-directional adjustable electronically controlled seats, etc.
- These electronic devices are usually connected to the electronic control unit.
- Figure 1 is a diagram of the electronic device provided by an embodiment of the present application. Structural diagram, the control module 10 in Figure 1 may include one or more electronic control units, and each electronic control unit may be used to control at least one of the automatic driving system 11, the vehicle entertainment system 12, the communication system 13, etc.
- the electronic control unit is the “driving computer” of the vehicle. It is used for information collection, calculation, processing, judgment and output of operating instructions from various sensors.
- the electronic control unit generally consists of a microprocessor (CPU), memory (ROM, RAM) ), input/output interface (I/O), analog-to-digital converter (A/D), and large-scale integrated circuits such as shaping and driving.
- the electronic control unit When the electronic control unit is working, its own components will generate heat. Especially with the development of vehicles, the amount of data that the electronic control unit needs to process is increasing, and the demand for computing power of the electronic control unit is also increasing.
- the electronic control unit Naturally, there are more and more electronic components on the internal circuit board.
- the degree of circuit integration has increased exponentially.
- the workload of the electronic control unit has greatly increased, resulting in a large increase in heat generation.
- the length of cables reduces the redundancy of calculation examples in each electronic control unit.
- Each electronic control unit is gradually centralized, and the problem of heat dissipation becomes more prominent.
- the electronic control unit is usually installed in the engine compartment. The high temperature environment in the cabin will affect the operation of the electronic components of the electronic control unit, causing the electronic control unit to become hotter.
- the control module provided by this application has good heat dissipation capability.
- the two electronic control units share a cold plate for heat dissipation, which can also reduce the size and make it easier to install.
- Figure 2 is an exploded view of the control module 10 provided in one embodiment of the present application.
- Figure 3 is a cross-sectional view of the control module 10 provided in one embodiment of the present application.
- the first embodiment of the present application A control module 10 is provided.
- the control module includes a cold plate 300, a first housing 110, a first circuit board 120, a second housing 210 and a second circuit board 220.
- the cold plate 300 includes a cold plate arranged along the thickness direction.
- the first surface 301 and the second surface 302; the first housing 110 is located on the same side of the first surface 301, and surrounds the first surface 301 to form the first receiving space 101 (as shown in FIG. 3).
- the first housing 110 It is sealed and detachably connected to the cold plate 300; the first circuit board 120 is located in the first receiving space 101 and detachably connected to the first housing 110.
- the first circuit board 120 is provided with a side on the side facing the first surface 301.
- the first chip 121 has a first thermal conductive structure 122 between the first chip 121 and the first surface 301.
- the cold plate 300 dissipates heat for the first chip 121 through the first thermal conductive structure 122; the second housing 210 is located on the same surface as the second surface 302. side, and is surrounded by the second surface 302 to form the second receiving space 201.
- the second housing 210 and the cold plate 300 are sealed and detachably connected; the second circuit board 220 is located in the second receiving space 201 and is connected to the second receiving space 201.
- the housing 210 is detachably connected.
- the second circuit board 220 is provided with a second chip 221 on one side facing the second surface 302.
- the cold plate 300 passes through the second thermal conductive structure 222.
- the second thermal conductive structure 222 dissipates heat for the second chip 221 .
- the cold plate 300 is also called a cooling plate.
- the cold plate 300 can maintain a lower temperature and is used to cool the first chip 121 and the second chip 221 , and can also be used to cool the first circuit board 120 and the second circuit board 220 .
- the temperature of the cold plate 300 can be adjusted according to the heat generation conditions of the first chip 121 and the second chip 221 to achieve a better cooling effect.
- the thickness direction of the cold plate 300 is the first direction X, and the first surface 301 and the second surface 302 of the cold plate 300 are arranged along the first direction X.
- the cold plate 300 is a rectangular parallelepiped, the first direction While improving cooling efficiency, the volume of the cold plate 300 is reduced.
- the cold plate 300 has a hollow structure with a cooling liquid inside.
- the cold plate 300 is also provided with a liquid inlet and a liquid outlet (not shown in the figure). Through the cooling liquid, the first chip 121 is cooled. Realize heat exchange with the second chip 221 to cool the first chip 121 and the second chip 221 .
- the cold plate 300 may also have other shapes. Specifically, the shape of the cold plate 300 may be adjusted according to the first housing 110 , the second housing 210 and the surrounding environment.
- the cold plate 300 is an air-cooled cold plate, and a fan is provided inside the cold plate 300. The fan drives the air flow inside and outside the cold plate 300 to circulate to achieve heat exchange and cool the first chip 121 and The second chip 221.
- the circuit board and the casing together are called an electronic control unit. That is, in this embodiment, the first circuit board 120 and the first casing 110 are called the first electronic control unit 100 , and the first circuit board 120 and the first casing 110 are called the first electronic control unit 100 .
- the second circuit board 220 and the second housing 210 are called the second electronic control unit 200.
- the first electronic control unit 100 and the second electronic control unit 200 can be used to control the automatic driving system 11, the vehicle entertainment system 12 and the communication system 13 respectively. wait.
- the first circuit board 120 may be individually referred to as the first electronic control unit 100
- the second circuit board 220 may be referred to as the second electronic control unit 200 .
- the first electronic control unit 100 is used to control the automatic driving system 11 (as shown in Figures 1 and 3). After collecting signals, the first circuit board 120 learns the current working condition information of the vehicle and automatically plans the driving. Route and intelligently control the vehicle to drive on the preset driving route.
- the second electronic control unit 200 is used to control the in-vehicle entertainment system 12, which can realize media playback, gesture recognition, face recognition, driving behavior monitoring, 360-degree panoramic images, voice local recognition, and integration with instruments or other screens. Interaction, etc., to meet the driver’s driving experience requirements.
- the first electronic control unit 100 or the second electronic control unit 200 may also be used to control the communication system 13 , which may implement vehicle-to-vehicle communication and vehicle-to-infrastructure communication, as indicated by inter-vehicle communication. Accurate positioning, acquisition or dissemination of road condition information can be obtained through the vehicle's driving road conditions and the vehicle's turning, overtaking, deceleration, lane change and other information, or through communication between the vehicle and the communication base station, to prevent accidents.
- the first electronic control unit 100 and the second electronic control unit 200 can be used to control other functional systems or control multiple functional systems as needed.
- the first electronic control unit 100 and the second electronic control unit 200 can also be used to control other functional systems or multiple functional systems. Can coordinately control the same functional system.
- the first circuit board 120, the second circuit board 220 and the cold plate are arranged in parallel or approximately parallel.
- the first chip 121 is fixed on the first circuit board 120 and is electrically connected to the first circuit board 120.
- the first circuit board 120 may be provided with There are one or more first chips 121, and the functions of the multiple first chips 121 can be the same or different; the second chip 221 is fixed on the second circuit board 220 and is electrically connected to the second circuit board 220.
- the second circuit board One or more second chips 221 may be provided on 220.
- the functions of the multiple first chips 121 may be the same or different, and the number and functions of the second chips 221 and the first chips 121 may be the same or different. This application does not limit this.
- the heat source in the control module 10 is mainly the heat generated by one or more first chips 121 and one or more second chips 221 , so the first chips 121 and the second chips 221 are directly dissipated. That is, the first electronic control unit 100 and the second electronic control unit 200 are cooled.
- the first chip 121 and the second chip 221 are in direct contact with the cold plate 300, the heat dissipation effect is poor, and if different first chips 121 or different second chips 221 have different thicknesses in the first direction X, as shown in Figure 3 Among the first chip 121a and the first chip 121b, chips with smaller thickness are difficult to fit with the cold plate 300, resulting in some chips not being able to achieve better heat dissipation effect.
- the first chip 121 is placed along the first chip 121.
- a first thermal conductive structure 122 is added on the side away from the first circuit board 120 in the first direction X, and a second thermal conductive structure 222 is added on the side of the second chip 221 away from the second circuit board 220 in the first direction
- the thermal conductive structure 122 and the second thermal conductive structure 222 can fill the air gap between the chip and the cold plate 300.
- the thermal conductive structure (122, 222) can cover the uneven surface of the chip, increase the heat dissipation area of the chip, and increase the heat dissipation area of the chip.
- the heat can be better conducted to the cold plate 300 for heat dissipation, thereby improving the efficiency and service life of the electronic control unit; on the other hand, the arrangement of the thermal conductive structures (122, 222) allows each chip with different thicknesses to be connected to the cold plate. 300 is in indirect contact, and the cold plate 300 is used to achieve heat dissipation; on the other hand, the first thermal conductive structure 122 can also be used to support the first chip 121, and the second thermal conductive structure 222 can also be used to support the second chip 221, improving the first circuit board 120 and The structural strength of the second circuit board 220.
- the first thermally conductive structure 122 and the second thermally conductive structure 222 have characteristics such as flexibility and elasticity, so that the first thermally conductive structure 122 can cover all of the first chip 121 away from the first circuit board 120 along the first direction X. Or a partial surface, the second thermal conductive structure 222 covers all or a partial surface of the second chip 221 away from the second circuit board 220 along the first direction X, so that the first chip 121 and the second chip 221 can achieve better heat dissipation.
- a thermal conductive structure can also be added at the corresponding position to transfer the heat at that position through the thermal conductive structure. to the cold plate 300 for heat dissipation.
- the first surface 301 and the second surface 302 of the cold plate 300 are fully utilized to cool the first chip 121 and the second chip 221 respectively, which can save energy consumption, and compared with using only one cold plate to cool an electronic control Unit implementation, in this implementation, one cold plate 300 can be used to cool two electronic control units, making the control module 10 smaller in size to meet the needs of small-sized scenarios and facilitate installation.
- the first housing 110 is used to protect the first circuit board 120 (as shown in FIG. 3 ) and prevent the first circuit board 120 from being damaged due to impact with external devices.
- the first housing 110 and the first surface 301 together form a second A receiving space 101.
- the first receiving space 101 is a closed space.
- the first circuit board 120 can be sealed and isolated from the external environment, so that the first circuit board 120 can achieve the purpose of being dustproof and waterproof.
- the sealing level of the first circuit board 120 can also reach a sealing level of IP67 or above.
- the first receiving space 101 can also prevent external moisture from entering the first receiving space 101 and condensing into condensed water due to low temperature.
- the first thermal conductive structure 122 is directly connected to the cold plate 300, which can achieve a better heat dissipation effect.
- the cold plate 300 can also reduce the temperature of the first circuit board 120 by cooling the air in the first receiving space 101. temperature.
- a desiccant is placed in the first receiving space 101 to remove moisture in the first receiving space 101, ensure that the first receiving space 101 is in a dry state, and avoid moisture in the first receiving space 101.
- the temperature is too low and condenses on the first circuit board 120, causing damage to the first circuit board 120.
- the first receiving space 101 is not a sealed space, external moisture can easily penetrate into the first receiving space 101, and the desiccant can easily fail. Replacing the desiccant will also increase the cost and be time-consuming and labor-intensive.
- the first circuit board 120 can be better protected from damage. Water vapor damage.
- the detachable connection means that the two connected components can be separated without being damaged.
- the detachable connection between the first housing 110 and the cold plate 300 means that during normal use, the first housing 110 It is relatively fixed to the cold plate 300. When maintenance is required, the first housing 110 and the cold plate 300 can be separated without damaging the first housing 110 or the cold plate 300. Since the first housing 110 is detachably connected to the cold plate 300 and the first circuit board 120 is detachably connected to the first housing 110, when the first circuit board 120 fails, the first circuit board 120 can be removed from the first circuit board 120.
- the first casing 110 can be completely removed for repair without damaging the first casing 110 and the first circuit board 120, which improves the convenience of repairing the first circuit board 120 or when the first circuit board 120 needs to be replaced. , the old first housing 110 can be reused to reduce costs. At the same time, when the first housing 110 is damaged, only the first housing 110 can be replaced, and the first circuit board 120 can be disassembled and assembled to a new one. One housing 110 is sufficient.
- the second housing 210 is used to protect the second circuit board 220 (as shown in FIG. 3 ) and prevent the second circuit board 220 from being damaged due to impact with external devices.
- the second housing 210 and the second surface 302 together form a second circuit board 220 .
- the second receiving space 201 is a closed space.
- the second circuit board 220 can be sealed and isolated from the external environment, so that the second circuit board 220 can achieve the purpose of being dustproof and waterproof.
- the sealing level of the second circuit board 220 can also reach a sealing level of IP67 or above.
- the second accommodation space 201 can also prevent external moisture from entering the second accommodation space 201 and condensing to the second accommodation space due to excessively low temperature.
- the circuit board 220 causes damage to the second circuit board 220; on the other hand, the cold plate 300 not only plays a cooling role, but also serves as a part surrounding the second accommodation space 201, realizing full utilization of the cold plate 300.
- the third The second thermal conductive structure 222 is directly connected to the cold plate 300 to achieve a better heat dissipation effect.
- the cold plate 300 can also reduce the temperature of the second circuit board 220 by cooling the air in the second accommodation space 201 .
- Desiccant can also be placed in the second accommodation space 201 to remove moisture in the second accommodation space 201 .
- the second housing 210 is detachably connected to the cold plate 300 and the second circuit board 220 is detachably connected to the second housing 210, when the second circuit board 220 fails, the second circuit board 220 can be removed from the second housing 210.
- the second housing 210 can be completely removed for repair without damaging the second housing 210 and the second circuit board 220, which improves the convenience of repairing the second circuit board 220 or when the second circuit board 220 needs to be replaced. , the old second housing 210 can be reused to reduce costs.
- the second housing 210 is damaged, only the second housing 210 can be replaced, and the second circuit board 220 can be disassembled and assembled to a new one.
- the second housing 210 is sufficient.
- the size and shape of the second housing 210 and the first housing 110 are equal (as shown in FIG. 3 ), and the orthographic projections of the second housing 210 and the first housing 110 on the cold plate 300 are exactly the same. Covering the surface of the cold plate 300 maximizes the utilization of the cold plate 300 . In other embodiments, there may be cases where the size of the second housing 210 and the first housing 110 are inconsistent (as shown in FIG. 4 ), and this application does not limit this.
- the orthographic projection of the first housing 110 on the cold plate 300 is located within the first surface 301, or the orthographic projection area of the first housing 110 on the cold plate 300 is smaller than the area of the first surface 301, and the second housing 210
- the orthographic projection of the cold plate 300 is located within the second surface 302 , or the orthographic projection area of the second housing 210 on the cold plate 300 is smaller than the area of the second surface 302 .
- the orthogonal projected area of the first housing 110 on the cold plate 300 is greater than the area of the first surface 301
- the orthogonal projected area of the second housing 210 on the cold plate 300 is greater than the area of the second surface 302 .
- the control module 10 integrateds two electronic control units (100, 200).
- the two electronic control units share a cold plate, which has good heat dissipation effect, and the control module 10 is smaller in size to adapt to small size.
- the needs of the scene make it easy to install.
- it ensures the sealing and maintenance convenience of the circuit board, realizes the waterproof and dustproof of the electronic control unit, facilitates disassembly and assembly, and facilitates maintenance, ensuring that the electronic control unit works efficiently and stably, and can also save energy consumption and reduce costs.
- the control module 10 further includes a first sealing structure 410 (as shown in FIG. 3 ).
- the first sealing structure 410 is located between the first housing 110 and the first surface 301 for sealing.
- the first sealing structure 410 is hollow annular, and the first receiving space 101 is sealed through the first sealing structure 410.
- the first sealing structure 410 may be a sealing strip.
- the first sealing structure 410 is located at the edge of the first surface 301 so that most of the first surface 301 serves as the bottom of the first receiving space 101 to improve the heat dissipation effect.
- the first housing 110 and the first surface 301 are connected by bolts (as shown in FIG. 11 ), and the first housing 110 and the first surface 301 are disassembled and connected by disassembling and assembling the bolts 304 . , and at the same time, sealing is performed through the first sealing structure 410 to achieve a sealed and detachable connection between the first housing 110 and the first surface 301, and the pressing degree of the first housing 110 and the first surface 301 can be adjusted,
- the first sealing structure 410 is interference-fitted with both the first housing 110 and the first surface 301 to achieve a better sealing effect.
- the first sealing structure 410 is a sealing strip.
- the sealing strip is not fixedly connected to the first surface 301 or the first shell 110.
- the first shell 110 and the first surface 301 are locked by bolts. , and press the sealing strip tightly between the first housing 110 and the first surface 301 to achieve sealing between the first housing 110 and the first surface 301, that is, after tightening the first housing with bolts, 110 and the first surface 301 are detachably connected, and the first housing 110 and the first surface 301 are sealed through the first sealing structure 410 .
- the bolts can be removed first, and then the first housing 110 can be removed from the cold plate 300 to repair the first circuit board 120 .
- a standard installation interface is used between the cold plate 300 and the first housing 110, so that one cold plate 300 can be adapted to different types of first housings 110.
- the first housing 110 and the first surface 301 may also be connected through buckles or other methods.
- the first sealing structure 410 is fixedly connected to the first housing 110 and then abuts against the first surface 301.
- the position of the first sealing structure 410 is relatively fixed, which can achieve a more stable sealing effect.
- the first sealing structure 410 can also be fixedly connected to the first surface 301 and then abutted against the first housing 110.
- the position of the first sealing structure 410 is relatively fixed, which can achieve a more stable sealing effect.
- the first surface 301 is provided with a groove 303 that is recessed toward the second surface 302 along the first direction
- the body 110 is provided with a boss 113 on a surface close to the first surface 301 along the first direction
- the first sealing structure 410 has an interference fit with the groove 303 and the boss 113 .
- the first surface 301 may also be provided with a boss that protrudes toward the first housing 110 along the first direction X, and the first housing 110 is provided with a surface close to the first surface 301 along the first direction
- There is a groove the first sealing structure 410 is located in the groove, and the boss presses the first sealing structure 410 in the groove to achieve sealing between the first housing 110 and the first surface 301 .
- the cross-sectional shape of the first sealing structure 410 is not limited to the shape shown in FIG. 5 , and the cross-sectional shape of the first sealing structure 410 can also be circular, elliptical, square, etc.
- first housing 110 and the first surface 301 are sealed by welding or dispensing glue, the first housing 110 and the first surface 301 are non-detachably connected.
- the first housing 110 is used to take out the first circuit board 120 for maintenance. During the removal process, the first circuit board 120 is easily further damaged.
- first surface 301 or the first housing 110 moves along the first direction X
- sealing by welding or glue dispensing is difficult, and the sealing is prone to incomplete and cannot be adapted to various scenarios.
- the first sealing structure 410 is not fixedly connected to the first shell 110 and the first surface 301, or the first sealing structure 410 is only connected to the first shell.
- the body 110 or the first surface 301 is fixedly connected to achieve a sealed and detachable connection between the first housing 110 and the first surface 301.
- the first circuit board 120 fails, the first circuit board 120 can be removed from the first housing.
- the body 110 can be completely removed for repair without damaging the first housing 110 and the first circuit board 120, which improves the convenience of repairing the first circuit board 120; on the other hand, the first sealing structure 410 is used for repair.
- Sealing, high disassembly and assembly efficiency, and the first sealing structure 410 has a certain elasticity and softness, even if the first surface 301 or the surface of the first housing 110 close to the first surface 301 along the first direction Get better sealing effect and strong adaptability.
- the control module 10 further includes a second sealing structure 420 (as shown in FIG. 3 ).
- the second sealing structure 420 is located between the second housing 210 and the second surface 302 for sealing.
- the second sealing structure 420 is hollow annular, and the second receiving space 201 is sealed through the second sealing structure 420.
- the second sealing structure 420 may be a sealing strip.
- the second sealing structure 420 is located at the edge of the second surface 302 so that most of the second surface 302 serves as the bottom of the second receiving space 201 to improve the heat dissipation effect.
- the shape, material, size and other characteristics of the second sealing structure 420 may be the same as or different from the first sealing structure 410 .
- the second housing 210 and the second surface 302 are connected by bolts, and the second housing 210 and the second surface 302 are disassembled and connected by disassembling the bolts 305 (as shown in FIG. 11 ).
- sealing is performed through the second sealing structure 420 to achieve a sealed and detachable connection between the second housing 210 and the second surface 302, and the pressing degree of the second housing 210 and the second surface 302 can be adjusted,
- the second sealing structure 420 is interference-fitted with both the second housing 210 and the second surface 302 to achieve a better sealing effect.
- the second sealing structure 420 is a sealing strip. The sealing strip is not fixedly connected to the second surface 302 or the second housing 210.
- the second housing 210 and the second surface 302 are locked by bolts. , and press the sealing strip tightly between the second housing 210 and the second surface 302 to achieve sealing between the second housing 210 and the second surface 302, that is, after tightening the second housing with bolts, 210 and the second surface 302 are detachably connected, and the second housing 210 and the second surface 302 are sealed through the second sealing structure 420 .
- the bolts can be removed first, and then the second housing 210 can be removed from the cold plate 300, and then the second circuit board 220 can be repaired.
- a standard installation interface is used between the cold plate 300 and the second housing 210, so that one cold plate 300 can be adapted to different types of second housings 210.
- the second housing 210 and the second surface 302 may also be connected through buckles or other methods.
- the second sealing structure 420 is fixedly connected to the second housing 210 and then abuts against the second surface 302. The position of the second sealing structure 420 is relatively fixed, which can achieve a more stable sealing effect.
- the second sealing structure 420 can also be fixedly connected to the second surface 302 and then abutted against the second housing 210. The position of the second sealing structure 420 is relatively fixed, which can achieve a more stable sealing effect.
- the second surface 302 is provided with a groove that is recessed toward the first surface 301 along the first direction
- the second surface 302 is provided with a boss.
- the boss presses the second sealing structure in the groove to achieve sealing between the second housing 210 and the second surface 302.
- the second sealing structure 420 passes through both the groove and the boss. Cooperate with surplus.
- the second surface 302 may also be provided with a boss protruding toward the second housing 210 along the first direction X.
- the second housing 210 is provided with a surface close to the second surface 302 along the first direction X.
- There is a groove the second sealing structure 420 is located in the groove, and the boss presses the second sealing structure 420 in the groove to achieve sealing between the second housing 210 and the second surface 302 .
- the second housing 210 and the second surface 302 are sealed by welding or dispensing glue, the second housing 210 and the second surface 302 are non-detachably connected.
- the second housing 210 is used to take out the second circuit board 220 for maintenance. During the removal process, the second circuit board 220 is easily further damaged.
- the sealing method of welding or glue dispensing is difficult to construct, and the sealing is prone to incomplete and cannot be adapted to various scenarios.
- the second sealing structure 420 is not fixedly connected to the second shell 210 and the second surface 302, or the second sealing structure 420 is only connected to the second shell.
- the body 210 or the second surface 302 is fixedly connected to achieve a sealed and detachable connection between the second housing 210 and the second surface 302.
- the second circuit board 220 fails, the second circuit board 220 can be removed from the second housing.
- the body 210 is completely removed for repair without damaging the second housing 210 and the second circuit board 220, which improves the convenience of repairing the second circuit board 220; on the other hand, the second sealing structure 420 is used for repair.
- Sealing, high disassembly and assembly efficiency, and the second sealing structure 420 has a certain elasticity and softness, even if the second surface 302 or the surface of the second housing 210 close to the second surface 302 along the first direction Get better sealing effect and strong adaptability.
- the control module 10 further includes a first connector 130 (as shown in FIG. 3 ).
- the first connector 130 is passed through the first housing 110 and has two ends of the first connector 130 . The ends are respectively located inside the first receiving space 101 and the outside world.
- a third sealing structure 430 is provided on the periphery of the first connector 130.
- the third sealing structure 430 is connected to the first housing 110 to realize the connection between the first receiving space 101 and the outside world. of isolation.
- the first connector 130 is used to realize information exchange between the first circuit board 120 and the outside world.
- the first connector 130 is electrically connected to the first circuit board 120 inside the first receiving space 101, and the first connector 130 is connected from the first circuit board 120 to the outside world.
- the inside of a receiving space 101 extends to the outside of the first receiving space 101 , and the first connector 130 and the first housing 110 are sealed by a third sealing structure 430 .
- the electronic control unit also includes a connector, that is, the first circuit board 120 , the first housing 110 and the first connector 130 are collectively referred to as the first electronic control unit 100 .
- the first connector 130 may be a CAN connector, an Ethernet connector, a camera connector, or the like.
- the control module 10 may include multiple first connectors 130 , and the multiple first connectors 130 may be the same type of connectors, or may be different types of connectors. In order to make the control module 10 It can be adapted to various situations, and a larger number or multiple types of first connectors 130 can be preset, and then some of the first connectors 130 can be selected for use according to actual needs.
- the first connector 130 may also be a standardized connector, and the number of first connectors 130 may be increased or decreased to adapt to the requirements for the number of first connectors 130 in different situations.
- the first housing 110 includes a first enclosing frame 111 and a first cover 112 located on the first enclosing frame 111 away from the first surface 301 (as shown in FIG. 3 ).
- a cover 112 and the first surface 301 enclose the first receiving space 101 , and the first connector 130 is disposed on the first enclosing frame 111 .
- the sealing strip Since the outer surface of the first connector 130 is usually irregular in shape, if the third sealing structure 430 is a sealing strip and the first connector 130 is directly connected to the first housing 110 through the sealing strip, the sealing strip will The shape needs to fit the shape of the outer surface of the first connector 130 , that is, the shape of the sealing strip also needs to be an irregular shape. Although this implementation is feasible, it will be more inconvenient to implement.
- this application provides two possible implementation methods: first, the first connector 130 is fixed and sealed on the first housing 110 by glue dispensing or welding (as shown in the figure) 3), at this time, in order to ensure the maintenance convenience of the first circuit board 120, the first circuit board 120 and the first connector 130 are set to be detachably connected, thereby ensuring the sealing and sealing of the first receiving space 101 at the same time.
- the first sealing strip is 431, realize the sealing of the first connector 130 and the first protective cover 432 as a whole with the first housing 110.
- the first connector 130 and the first housing 110 are in a detachable connection relationship. If the first circuit board 120 It is non-detachably connected to the first connector 130, so when repairing the first circuit board 120, the first circuit board 120 and the first connector 130 can be detached together for repair.
- the sealed connection method between the first connector 130 and the first housing 110 provided in this application is simpler to implement and more operable. For details, please refer to the following description.
- the first housing 110 is provided with a first opening (not shown in the figure) connected to the first receiving space 101, and the third sealing structure 430 is glue.
- the first connector 130 is fixed in the first opening through glue, and one end of the first connector 130 extends into the first receiving space 101 and is detachably connected to the first circuit board 120 .
- the first opening is provided on the first enclosing frame 111, and the first connector 130 is fixedly connected to the first enclosing frame 111 by dispensing glue.
- the first circuit board 120 is connected to the first enclosing frame 111.
- the device 130 is configured to be detachably connected to ensure the convenience of maintenance of the first circuit board 120 .
- the first connector 130 can also be fixed on the first housing 110 by welding or other methods, or the first connector 130 and the first housing 110 can be integrally formed.
- the control module 10 further includes a first connection board 141 and a first circuit board connector 142 provided on the first connection board 141 .
- the first connection board 141 is fixed to the first connector 130
- the first circuit board 120 and the first connection board 141 are detachably connected through the first circuit board connector 142 .
- the first connection plate 141 is fixedly connected to the first connector 130 by welding or glue dispensing.
- the first connector 130 can also be fixedly connected to the first connection plate 141 by welding or glue dispensing.
- the first connection The connection method between the connector 130 and the first housing 110 is not limited. Whether the first connector 130 and the first housing 110 are detachably connected or non-detachably connected does not affect the disassembly and assembly of the first circuit board 120 .
- the first connection board 141 may be an ordinary conductive plate, and the first connection board 141 is not provided with components, or there are only a small number of highly reliable passive components on the first connection board 141 .
- the first circuit board connector 142 may be a BTB connector (ie, board-to-board Connectors).
- the first circuit board 120 is located on a side of the first circuit board connector 142 adjacent to the first surface 301 .
- the first housing 110 can be directly removed from the cold plate 300, and then the first circuit board 110 can be detached from the cold plate 300.
- the board 120 is pulled out along the first direction X away from the first cover plate 112. This disassembly method is convenient and will not damage the first circuit board 120.
- the third sealing structure 430 includes a first sealing rubber strip 431 and a first protective cover 432 , the first housing 110 is provided with a first opening connected to the first receiving space 101, the first connector 130 is inserted into the first opening, and one end of the first connector 130 extends to the first receiving space 101 and is fixed to the first circuit board 120, the other end of the first connector 130 extends to the outside of the first receiving space 101, the first protective cover 432 is disposed on an end of the first connector 130 away from the first circuit board 120, and The first protective cover 432 and the surface of the first housing 110 away from the first circuit board 120 are sealed by a first sealing rubber strip 431 .
- part of the first connectors 130 is located in the first receiving space 101, and another part of the first connectors 130 is located in the first protective cover 432.
- the first protective cover 432 is sealed with the first housing 110 through the first sealing strip 431. And the connection is detachable.
- the first housing 110 is configured for contact.
- the first connector 130 and the first housing 110 are not non-detachably connected.
- the first connector 130 can be directly welded to the first circuit board 120. When disassembling, the first housing can be directly removed. After the body 110 is removed from the cold plate 300, the first protective cover 432 is removed, and then the first circuit board 120 and the first connector 130 are removed from the first housing 110.
- the first sealing strip 431 can be pre-fixed on the first housing 110 , and the first protective cover 432 abuts against the first sealing strip 431 to achieve sealing. At this time, the first sealing strip 431 can All of them are located on the first enclosure 111 , or part of them may be located on the first enclosure 111 and part of them are located on the first cover 112 . In one embodiment, the first sealing rubber strip 431 is pre-fixed on the first protective cover 432, and the first sealing rubber strip 431 abuts against the first housing 110 to achieve sealing.
- an end of the first connector 130 away from the first circuit board 120 is provided with a cable, and a side of the first protective cover 432 away from the first circuit board 120 is provided with an opening to accommodate the passage of the cable.
- the opening can be sealed and fixed by dispensing glue.
- the first housing 110 includes a first enclosure 111 and a first cover 112 located on the first enclosure 111 away from the first surface 301.
- the frame 111, the first cover 112 and the first surface 301 surround the first receiving space 101; a fifth sealing structure 450 is also provided between the first enclosing frame 111 and the first cover 112, and the fifth sealing structure 450 is located on the first receiving space 101.
- the fifth sealing structure 450 is used to seal the first surrounding frame 111 and the first cover 112 .
- the first enclosure 111 is sealed and detachably connected to the first surface 301 and the first cover 112 is located on the side of the first enclosure 111 away from the first surface 301 along the first direction X.
- the first cover 112 112 is parallel or approximately parallel to the first surface 301 .
- the control module 10 further includes a first connection board 141 and a first circuit board connector 142 provided on the first connection board 141.
- the first connection board 141 is fixedly connected to the first connector 130.
- a circuit board 120 is detachably connected to the first connection board 141 through a first circuit board connector 142 , and the first circuit board 120 is located on a side of the first circuit board connector 142 away from the first surface 301 .
- the control module 10 further includes a second connector 230 (as shown in FIG. 3 ).
- the second connector 230 is passed through the second housing 210 and has two ends of the second connector 230 . The ends are respectively located inside the second receiving space 201 and the outside world.
- a fourth sealing structure 440 is provided on the periphery of the second connector 230. The fourth sealing structure 440 is connected to the second housing 210 to realize the connection between the second receiving space 201 and the outside world. of isolation.
- the second connector 230 is used to realize information exchange between the second circuit board 220 and the outside world.
- the second connector 230 is electrically connected to the second circuit board 220 inside the second receiving space 201, and the second connector 230 is connected from the second circuit board 220 to the second circuit board 220.
- the inside of the second receiving space 201 extends to the outside of the second receiving space 201 , and the second connector 230 and the second housing 210 are sealed by a fourth sealing structure 440 .
- the electronic control unit also includes a connector, that is, the second circuit board 220 , the second housing 210 and the second connector 230 are collectively referred to as the first electronic control unit 100 .
- the second connector 230 may be a CAN connector, an Ethernet connector, a camera connector, or the like.
- the control module 10 may include a plurality of second connectors 230 , and the plurality of second connectors 230 may be the same type of connectors, or may be different types of connectors. In order to make the control module 10 It can be adapted to various situations, and a larger number or multiple types of second connectors 230 can be preset, and then some of the second connectors 230 can be selected for use according to actual needs.
- the second connector 230 may also be a standardized connector, and the number of second connectors 230 may be increased or decreased to adapt to the requirements for the number of second connectors 230 in different situations.
- the second housing 210 includes a second enclosing frame 211 and a second cover 212 located on the second enclosing frame 211 away from the first surface 301 (as shown in FIG. 3 ).
- the two cover plates 212 and the first surface 301 enclose the second receiving space 201 , and the second connector 230 is provided on the second enclosing frame 211 .
- the sealing strip Since the outer surface of the second connector 230 is usually irregular in shape, if the fourth sealing structure 440 is a sealing strip, and the second connector 230 is directly connected to the second housing 210 through the sealing strip, the sealing strip will The shape needs to fit the shape of the outer surface of the second connector 230 , that is, the shape of the sealing strip also needs to be an irregular shape. Although this implementation is feasible, it will be more inconvenient to implement.
- this application provides two possible implementation methods: first, the second connector 230 is fixed and sealed on the second housing 210 by dispensing or welding (as shown in the figure) 3), at this time, in order to ensure the maintenance convenience of the second circuit board 220, the second circuit board 220 and the second connector 230 are set to be detachably connected, thereby ensuring the sealing and sealing of the second receiving space 201 at the same time.
- the sealed connection method between the second connector 230 and the second housing 210 provided in this application is simpler to implement and more operable. For details, please refer to the following description.
- the second housing 210 is provided with a second opening connected to the second receiving space 201, the fourth sealing structure 440 is glue, and the second connector 230 is fixed on the second housing 230 by dispensing glue.
- the opening one end of the second connector 230 extends into the second receiving space 201 and is detachably connected to the second circuit board 220 .
- the second opening is provided on the second enclosing frame 211, and the second connector 230 is fixedly connected to the second enclosing frame 211 by dispensing glue.
- the second circuit board 220 is connected to the second enclosing frame 211.
- the device 230 is configured to be detachably connected to ensure the convenience of maintenance of the second circuit board 220.
- the second connector 230 can also be fixed on the second housing 210 by welding or other methods, or the second connector 230 and the second housing 210 can be integrally formed.
- the control module 10 further includes a second connection board 241 and a second circuit board connector 242 provided on the second connection board 241 (as shown in FIG. 3 ).
- the second connection board 241 Fixedly connected to the second connector 230 , the second circuit board 220 and the second connection board 241 are detachably connected through the second circuit board connector 242 .
- the second connection plate 241 is fixedly connected to the second connector 230 by welding or glue dispensing.
- the second connector 230 can also be fixedly connected to the second connection plate 241 by welding or glue dispensing.
- the second connection The connection method between the connector 230 and the second housing 210 is not limited. Whether the second connector 230 and the second housing 210 are detachably connected or non-detachably connected does not affect the disassembly and assembly of the second circuit board 220 .
- the second connection board 241 may be an ordinary conductive plate block, and the second connection board 241 is not provided with components, or there are only a small number of highly reliable passive components on the second connection board 241 .
- the second circuit board connector 242 may be a BTB connector (ie, board-to-board Connectors).
- the second circuit board 220 is located on a side of the second circuit board connector 242 adjacent to the second surface 302 .
- the second housing 210 can be directly removed from the cold plate 300, and then the second circuit board 210 can be detached from the cold plate 300.
- the board 220 is pulled out along the first direction X away from the second cover plate 212. This disassembly method is convenient and will not damage the second circuit board 220.
- the fourth sealing structure 440 includes a second sealing strip 441 and a second protective cover 442 (as shown in FIG. 6 ).
- the second opening, the second connector 230 is inserted into the second opening, one end of the second connector 230 extends into the second receiving space 201 and is fixed to the second circuit board 220, and the second connector 230 The other end extends to the outside of the second receiving space 201.
- the second protective cover 442 covers an end of the second connector 230 away from the second circuit board 220, and the second protective cover 442 and the second housing 210 are away from the second circuit board.
- the surfaces of 220 are sealed by a second sealing strip 441 .
- Part of the second connectors 230 is located in the second receiving space 201, and another part of the second connector 230 is located in the second protective cover 442.
- the second protective cover 442 is sealed with the second housing 210 through the second sealing strip 441. And the connection is detachable.
- the second housing 210 is arranged in contact.
- the second connector 230 and the second housing 210 are not non-detachably connected.
- the second connector 230 can be directly welded to the second circuit board 220. When disassembling, the second housing can be directly connected. After the body 210 is removed from the cold plate 300, the second protective cover 442 is removed, and then the second circuit board 220 and the second connector 230 are removed from the second housing 210.
- the second sealing rubber strip 441 can be pre-fixed on the second housing 210, and the second protective cover 442 abuts against the second sealing rubber strip 441 to achieve sealing.
- the second sealing rubber strip 441 can All of them are located on the first enclosure 111 , or part of them may be located on the first enclosure 111 and part of them are located on the first cover 112 .
- the second sealing rubber strip 441 is pre-fixed on the second protective cover 442, and the second sealing rubber strip 441 abuts against the second housing 210 to achieve sealing.
- the second connector 230 is provided with a cable on one end away from the second circuit board 220
- the second protective cover 442 is provided with an opening on a side away from the second circuit board 220 to accommodate the passage of the cable.
- the opening can be sealed and fixed by dispensing glue.
- the first electronic control unit 100 and the second electronic control unit 200 are sealed and fixed to the cold plate 300 in different ways (as shown in FIG. 7 ).
- the first electronic control unit 100 The first circuit board 120 and the first connection board 141 are detachably connected through the first circuit board connector 142, and the first connector 130 is sealed and fixedly connected to the first housing 110 through dispensing or welding; in the second electronic control unit In 200, the second connector 230 is fixedly connected to the second circuit board 220 through welding.
- the fourth sealing structure 440 includes a second sealing strip 441 and a second protective cover 442.
- the second protective cover 442 and the second housing 210 pass through The second sealing strip 441 seals, so that the second receiving space 201 and the space in the second protective cover 442 are sealed.
- the second housing 210 includes a second surrounding frame 211 and a second cover 212 located on the second surrounding frame 211 away from the second surface 302 .
- the sixth sealing structure 460 is used to seal the second surrounding frame 211 and the second cover plate 212.
- the second enclosing frame 211 is sealed and detachably connected to the second surface 302 and the second cover 212 is located on the side of the second enclosing frame 211 away from the second surface 302 along the first direction X.
- the second cover 212 is 212 is parallel or approximately parallel to the second surface 302 .
- the control module 10 further includes a second connection board 241 and a second circuit board connector 242 provided on the second connection board 241.
- the second connection board 241 is fixedly connected to the second connector 230.
- the second circuit board 220 and the second connection board 241 are detachably connected through the second circuit board connector 242 , and the second circuit board 220 is located on the side of the second circuit board connector 242 away from the second surface 302 .
- first housing 110 and the second housing 210 in FIG. 8 can also be applied to the embodiment shown in FIG. 6 .
- FIG 10 is a schematic diagram of a heat dissipation system 1 provided by an embodiment of the present application.
- An embodiment of the present application provides a heat dissipation system 1.
- the heat dissipation system 1 includes a heat dissipation component and any of the above control modules 10.
- the heat dissipation assembly is used to dissipate heat from the cold plate 300 so that the cold plate 300 cools the first circuit board 120 and the second circuit board 220 .
- the cold plate 300 uses liquid cooling to dissipate heat.
- the heat dissipation component includes a cooling pipeline 500 and a pump 600.
- the cooling pipeline 500 contains cooling liquid.
- the cold plate 300 is connected with the cooling pipeline 500.
- the pump 600 is used for The cooling liquid is driven to flow in the cooling pipeline 500 and the cold plate 300 so that the cold plate 300 cools the first circuit board 120 and the second circuit board 220 .
- the coolant can take away the heat of the cold plate 300, thereby reducing the temperature of the cold plate 300.
- the pump 600 provides power for the circulation of the coolant.
- the heat dissipation system 1 also includes a cooler 700 , the cold plate 300 is also provided with a liquid inlet and a liquid outlet (not shown in the figure). Under the action of the pump 600, the coolant circulates between the cooler 700 and the cold plate 300 to transfer the heat of the cold plate 300. to the cooler 700.
- the cooler 700 converts the inflowing higher-temperature cooling liquid into a lower-temperature cooling liquid and discharges it.
- the lower-temperature cooling liquid enters the cold plate 300 through the liquid inlet for cooling the first
- the higher-temperature cooling liquid in the circuit board 120 and the second circuit board 220 and the cold plate 300 flows out to the cooler 700 through the liquid outlet for cooling to continue to participate in the circulation.
- the heat dissipation component when the cold plate 300 adopts air-cooling for heat dissipation, the heat dissipation component includes a fan, and the fan drives the internal airflow of the cold plate 300 to exchange heat with the cold air of the external environment to cool the cold plate 300 , and then uses the cold plate 300 to cool the first circuit board 120 and a second circuit board 220 .
- the heat dissipation system may include one or more control modules 10 .
- the vehicle includes a vehicle frame and a heat dissipation system as described above.
- the heat dissipation system is installed on the vehicle frame.
- Vehicles refer to wheeled vehicles driven or towed by power devices and used for people traveling on the road or for transporting items and performing special engineering operations.
- Vehicles include two-wheeled, three-wheeled or four-wheeled vehicles.
- Vehicles also include various special operation vehicles with specific functions, such as engineering rescue vehicles, sprinkler trucks, sewage suction trucks, cement mixer trucks, crane trucks, medical vehicles, etc.
- the vehicle can be an electric vehicle or a fuel vehicle.
- the electric vehicle can be, but is not limited to, a pure electric vehicle (Pure Electric Vehicle/Battery Electric Vehicle, PEV/BEV), a hybrid electric vehicle (Hybrid Electric Vehicle, HEV), or a range-extended vehicle. This application is not limited to electric vehicles (Range Extended Electric Vehicle, REEV), plug-in hybrid electric vehicles (Plug-in Hybrid Electric Vehicle, PHEV), and new energy vehicles (New Energy Vehicle).
- the frame As the structural skeleton of the vehicle, the frame is used to support, fix and connect the vehicle's heat dissipation system, and bear the loads inside the vehicle system and from the external environment.
- the electronic control unit equipment in the vehicle will generate heat.
- the heat dissipation system can enable the electronic control unit and other electronic equipment to obtain good heat dissipation, ensuring that the electronic control unit can work stably and with high performance. It should be understood that one or more heat dissipation systems may be included in the vehicle, and the application of the heat dissipation system may not be limited to vehicles, but may also be applied to other mechanical equipment.
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Abstract
本申请提供一种控制模组(10)、散热系统及电子设备,控制模组(10)包括冷板(300)、第一壳体(110)、第一电路板(120)、第二壳体(210)和第二电路板(220),冷板(300)包括第一表面(301)和第二表面(302),第一壳体(110)与第一表面(301)围设构成第一收容空间(101),第二壳体(210)与第二表面(302)围设构成第二收容空间(102),第一壳体(110)和第二壳体(210)均与冷板(300)密封且可拆卸连接,第一电路板(120)和第二电路板(220)分别位于第一收容空间(101)和第二收容空间(102)内,第一电路板(120)设有第一芯片(121)和第一导热结构(122),第一芯片(121)与第一表面(301)之间具有第一导热结构(122),冷板(300)通过第一导热结构(122)为第一芯片(121)散热,第二电路板(220)设有第二芯片(221)和第二导热结构(222),冷板(300)通过第二导热结构(222)为第二芯片(221)散热。本申请中的控制模组(10)散热效果良好,且减小体积,还保证了电路板的密封性及维修便利性。
Description
本申请涉及散热技术领域,特别涉及一种控制模组、散热系统及电子设备。
随着智能技术的发展,可通过控制器来实现电子设备内部以及电子设备与外部的信息互连,控制器的工作负荷大大增加,而导致发热大增。例如智能车中车载电子设备越来越多,如雷达、摄像头、电机、防抱死制动系统、四轮驱动系统、电控自动变速器、主动悬架系统、安全气囊系统、多向可调电控座椅等,这些电子设备通常都与电子控制单元(也称行车电脑)相连,电子控制单元需要处理的数据量越来越大,对于电子控制单元的算力需求也就不断提升,电子控制单元的工作负荷大大增加,导致发热量大增,且各个电子控制单元逐渐集中化,散热困难的问题更为突出,为了使电子控制单元在发热量大增的情况下能够高效率且稳定地工作,就需要提高电子控制单元的散热能力及加强对电子控制单元的保护。而现有技术中的散热方案,散热效果差、在维修电子控制单元时容易造成电子控制单元内电路板的损坏,且体积大。
发明内容
本申请提供一种散热效果好且体积小的控制模组。
第一方面,本申请提供一种控制模组,所述控制模组包括冷板、第一壳体、第一电路板、第二壳体和第二电路板。所述冷板包括沿厚度方向排布的第一表面和第二表面;所述第一壳体位于所述第一表面同侧,且与所述第一表面围设构成第一收容空间,所述第一壳体与所述冷板之间密封且可拆卸连接;所述第一电路板位于所述第一收容空间内且与所述第一壳体可拆卸连接,所述第一电路板朝向所述第一表面的一侧设有第一芯片,所述第一芯片与所述第一表面之间具有第一导热结构,所述冷板通过所述第一导热结构为所述第一芯片散热;所述第二壳体位于所述第二表面同侧,且与所述第二表面围设构成第二收容空间,所述第二壳体与所述冷板之间密封且可拆卸连接;所述第二电路板,位于所述第二收容空间内且与所述第二壳体可拆卸连接,所述第二电路板朝向所述第二表面的一侧设有第二芯片,所述第二芯片与所述第二表面之间具有第二导热结构,所述冷板通过所述第二导热结构为所述第二芯片散热。
其中,所述冷板可维持较低温度,用于冷却所述第一芯片和所述第二芯片,也可以用于冷却所述第一电路板和所述第二电路板。在一实施方式中,可根据所述第一芯片和所述第二芯片的发热情况调节所述冷板的温度,以达到较好的冷却效果。所述冷板的所述第一表面和所述第二表面沿第一方向相对设置,在一实施方式中,所述冷板为长方体,所述第一方向为所述冷板的厚度方向,所述第一表面和所述第二表面为所述冷板中面积最大的两个表面,在保证较高的冷却效率的同时,减小所述冷板的体积。
在一实施方式中,所述冷板内呈中空结构,内部设有冷却液,所述冷板还设有进液口和出液口,通过冷却液与冷却所述第一芯片和所述第二芯片实现热交换,以冷却所述第一芯片 和所述第二芯片。在其他实施方式中,所述冷板也可以为其他形状,具体可根据所述第一壳体、所述第二壳体以及周围环境以调整所述冷板的形状。
在一些实施方式中,所述冷板为风冷冷板。在冷板内设有风扇,风扇驱动冷板内与冷板外的气流循环,以实现热交换,冷却第一芯片和第二芯片。
在一实施方式中,将电路板和壳体一起称为电子控制单元,即可将所述第一电路板与所述第一壳体称为第一电子控制单元,将所述第二电路板与所述第二壳体称为第二电子控制单元,所述第一电子控制单元和所述第二电子控制单元可分别用于控制自动驾驶系统、车载娱乐系统及通信系统等。在一实施方式中,也可单独将所述第一电路板称为第一电子控制单元,所述第二电路板称为第二电子控制单元。
在一实施方式中,所述第一电子控制单元和所述第二电子控制单元可根据需要,用于控制其他功能系统或者控制多种功能系统,所述第一电子控制单元和所述第二电子控制单元也可协调控制同一种功能系统。
所述第一电路板、所述第二电路板和冷板平行或者近似平行设置,所述第一芯片固定在所述第一电路板上并与所述第一电路板电连接,所述第一电路板上可设有一个或者多个所述第一芯片,多个所述第一芯片的功能可以相同也可以不同;所述第二芯片固定在所述第二电路板上并与所述第二电路板电连接,所述第二电路板上可设有一个或者多个所述第二芯片,多个所述第一芯片之间的功能可以相同也可以不同,且所述第二芯片与所述第一芯片的数量、功能可以相同也可以不同,本申请对此不作限制。
所述控制模组中的热量来源主要为所述第一芯片与所述第二芯片的发热,因此直接对所述第一芯片和所述第二芯片进行散热即冷却所述第一电子控制单元和所述第二电子控制单元。由于所述第一芯片和所述第二芯片直接与所述冷板接触的散热效果不佳,且若不同的所述第一芯片或不同的所述第二芯片在所述第一方向上的厚度不同,厚度较小的芯片难以与所述冷板贴合,导致部分芯片不能实现较好的散热效果,而在本申请中,在所述第一芯片沿所述第一方向远离所述第一电路板的一侧增设所述第一导热结构,在所述第二芯片沿所述第一方向远离所述第二电路板的一侧增设所述第二导热结构,一方面,所述第一导热结构和所述第二导热结构的设置可填充芯片和所述冷板之间的空气间隙,导热结构能够覆盖芯片的不平整的表面,增大芯片的散热面积,使芯片的热量可更好地传导至所述冷板上进行散热,从而能提高电子控制单元的效率和使用寿命;另一方面,导热结构的设置,可确保每个不同厚度的芯片均能与所述冷板间接接触,以实现散热;再一方面,所述第一导热结构可用于支撑所述第一芯片,所述第二导热结构可用于支撑所述第二芯片,提升所述第一电路板和所述第二电路板的结构强度。
在一实施方式中,所述第一导热结构和所述第二导热结构具有柔性、弹性等特征,以使所述第一导热结构能够覆盖所述第一芯片沿所述第一方向远离所述第一电路板的全部表面,所述第二导热结构覆盖所述第二芯片沿所述第一方向远离所述第二电路板的全部表面,使所述第一芯片和所述第二芯片可实现更好的散热。在一实施方式中,所述第一电路板或所述第二电路板上未设芯片的部位存在温度较高的问题时,也可在相应位置增设导热结构,以将该位置的热量通过导热结构传递至所述冷板进行散热。
本申请中,充分利用所述冷板的所述第一表面和所述第二表面分别冷却所述第一芯片和所述第二芯片,可节省能耗,且相较于只用一个冷板冷却一个电子控制单元的实施方式,本申请中利用一个所述冷板即可冷却两个电子控制单元,使所述控制模组的体积更小,以适应小尺寸化场景的需求,便于安装。
所述第一壳体用于保护所述第一电路板,防止所述第一电路板与外部器件撞击而损坏,且所述第一壳体与所述第一表面共同围设构成所述第一收容空间,所述第一收容空间为密闭空间,一方面,可将所述第一电路板与外界环境密封隔绝,以使所述第一电路板达到防尘防水的目的,本申请中,还可以对所述第一电路板的密封等级达到I P67或以上的密封等级,所述第一收容空间也可防止外界的水气进入所述第一收容空间后因温度过低而冷凝为冷凝水,冷凝水落在所述第一电路板上导致所述第一电路板损坏;另一方面,所述冷板不仅起到冷却作用,且作为围设所述第一收容空间的一部分,实现了对所述冷板的充分利用,同时,所述第一导热结构直接与所述冷板贴合连接,可起到更好的散热效果,所述冷板也可以通过冷却所述第一收容空间内的空气以降低所述第一电路板的温度。在一实施方式中,所述第一收容空间内还放置有干燥剂,用于去除所述第一收容空间内的水分,保证所述第一收容空间处于干燥状态,避免所述第一收容空间内的水分因温度过低而冷凝至所述第一电路板上导致所述第一电路板损坏,若所述第一收容空间并非密闭空间,外界的水气容易渗透至所述第一收容空间内,干燥剂容易失效,经常更换干燥剂也会导致成本升高且费时费力,而本申请中,通过将所述第一收容空间设置成密闭空间,且配合干燥剂的使用,可以更好地保护所述第一电路板不受水气的侵害。
其中,可拆卸连接是指相互连接的两个部件在不被破坏的情况可分离,例如第一壳体与冷板之间可拆卸连接,是指在正常使用时,第一壳体和冷板相对固定,在需要维修时,第一壳体和冷板可分离,但不破坏第一壳体或者冷板。由于所述第一壳体与所述冷板之间可拆卸连接且所述第一电路板与所述第一壳体可拆卸连接,当所述第一电路板发生故障时,能够将所述第一电路板从所述第一壳体上完全拆下进行维修,而不需要损坏所述第一壳体以及不破坏所述第一电路板,提高了所述第一电路板维修的便利性,或者需要更换所述第一电路板时,可复用旧的所述第一壳体,以降低成本,同时,当所述第一壳体存在破损情况时,可仅更换所述第一壳体,将所述第一电路板拆装至新的所述第一壳体即可。
所述第二壳体用于保护所述第二电路板,防止所述第二电路板与外部器件撞击而损坏,且所述第二壳体与所述第二表面共同围设构成所述第二收容空间,所述第二收容空间为密闭空间,一方面,可将所述第二电路板与外界环境密封隔绝,以使所述第二电路板达到防尘防水的目的,本申请中,还可以对所述第一电路板的密封等级达到I P67或以上的密封等级,所述第二收容空间也可防止外界的水气进入所述第二收容空间后因温度过低而冷凝至所述第二电路板上导致所述第二电路板损坏;另一方面,所述冷板不仅起到冷却作用,且作为围设所述第二收容空间的一部分,实现了对所述冷板的充分利用,同时,所述第二导热结构直接与所述冷板贴合连接,可起到更好的散热效果,所述冷板也可以通过冷却所述第二收容空间内的空气以降低所述第二电路板的温度。所述第二收容空间内也可放置干燥剂,用于去除所述第二收容空间内的水分。由于所述第二壳体与所述冷板之间可拆卸连接且所述第二电路板与所述第二壳体可拆卸连接,当所述第二电路板发生故障时,能够将所述第二电路板从所述第二壳体上完全拆下进行维修,而不需要损坏所述第二壳体以及不破坏所述第二电路板,提高了所述第二电路板维修的便利性,或者需要更换所述第二电路板时,可复用旧的所述第二壳体,以降低成本,同时,当所述第二壳体存在破损情况时,可仅更换所述第二壳体,将所述第二电路板拆装至新的所述第二壳体即可。
在一实施方式中,所述第二壳体与所述第一壳体的大小、形状相等,且所述第二壳体与所述第一壳体在所述冷板的正投影覆盖所述冷板的表面,可使所述冷板的利用率最大化。在其他实施方式中,也存在所述第二壳体与所述第一壳体大小不一致的情况,本申请对此不作 限制。示例性的,第一壳体在冷板的正投影位于第一表面内,或者第一壳体在冷板的正投影面积小于第一表面的面积,第二壳体在冷板的正投影位于第二表面内,或者第二壳体在冷板的正投影面积小于第二表面的面积。示例性,第一壳体在冷板的正投影面积大于第一表面的面积,第二壳体在冷板的正投影面积大于第二表面的面积。
本申请提供的所述控制模组集成了两个电子控制单元,两个电子控制单元共用一个冷板,散热效果良好,且控制模组的体积更小,以适应小尺寸化场景的需求,便于安装。同时保证了电路板的密封性及维修便利性,实现了电子控制单元的防水防尘,拆装方便、便于维修,保证电子控制单元高效率且稳定地工作,还能节约能耗、降低成本。
在一种可能的实现方式中,所述控制模组还包括第一密封结构,所述第一密封结构位于所述第一壳体和所述第一表面之间,用于密封所述第一壳体与所述第一表面。所述第一密封结构为中空的环状,通过所述第一密封结构实现所述第一收容空间的密封,在一实施方式中,所述第一密封结构可以为密封胶条。在一实施方式中,所述第一密封结构位于所述第一表面的边缘,以使所述第一表面的大部分作为所述第一收容空间的底部,提升散热效果。
在一实施方式中,所述第一壳体和所述第一表面以螺栓方式连接,通过拆装螺栓,以实现所述第一壳体和所述第一表面的拆卸与连接,同时通过所述第一密封结构进行密封,以实现所述第一壳体和所述第一表面之间密封且可拆卸连接,且可通过调整所述第一壳体和所述第一表面的压紧程度,使所述第一密封结构与所述第一壳体和所述第一表面均过盈配合,达到更好的密封效果。在本申请中,所述第一密封结构为密封胶条,密封胶条与所述第一表面、所述第一壳体均不固定连接,通过螺栓将所述第一壳体和所述第一表面锁紧,并将密封胶条压紧,挤压在所述第一壳体和所述第一表面之间,以实现所述第一壳体和所述第一表面的密封,也就是在通过螺栓将所述第一壳体和所述第一表面可拆卸连接,通过所述第一密封结构将所述第一壳体和所述第一表面密封。当需要拆卸对所述第一电路板维修时,可先拆卸螺栓,再将所述第一壳体从所述冷板上拿下,就可以对所述第一电路板维修。
在一实施方式中,所述冷板和所述第一壳体之间采用标准安装接口,实现一块所述冷板适配不同类型的所述第一壳体。
在一实施方式中,所述第一壳体和所述第一表面也可通过卡扣等其他方式连接。在一实施方式中,所述第一密封结构与所述第一壳体固定连接,而后抵接至所述第一表面,所述第一密封结构的位置相对固定,可更稳定地实现密封作用。在一实施方式中,所述第一密封结构也可与所述第一表面固定连接,而后抵接至所述第一壳体,所述第一密封结构的位置相对固定,可更稳定地实现密封作用。
在一实施方式中,所述第一表面上设有沿所述第一方向朝向所述第二表面凹陷的凹槽,所述第一密封结构位于凹槽内,所述第一壳体沿所述第一方向靠近所述第一表面的表面设有凸台,凸台挤压凹槽内的所述第一密封结构以实现所述第一壳体与所述第一表面的密封,所述第一密封结构与凹槽、凸台均过盈配合。在一实施方式中,所述第一表面上也可设有沿所述第一方向朝向所述第一壳体凸起的凸台,所述第一壳体沿所述第一方向靠近所述第一表面的表面设有凹槽,所述第一密封结构位于凹槽内,凸台挤压凹槽内的所述第一密封结构以实现所述第一壳体与所述第一表面的密封。其中,所述第一密封结构的横截面形状还可以圆形、椭圆形、方形等。
在本申请中,通过所述第一密封结构的设置,一方面,所述第一密封结构不与所述第一壳体和所述第一表面固定连接,或所述第一密封结构仅与所述第一壳体或所述第一表面固定连接,可实现所述第一壳体和所述第一表面之间密封且可拆卸连接,所述第一电路板发生故 障时,能够将所述第一电路板从所述第一壳体上完全拆下进行维修,而不需要损坏所述第一壳体以及不破坏所述第一电路板,提高了所述第一电路板维修的便利性;另一方面,利用所述第一密封结构进行密封,拆装效率高,且所述第一密封结构具有一定的弹性及柔软度,即使所述第一表面或所述第一壳体沿所述第一方向靠近所述第一表面的表面不平整,也可起到较好的密封效果,适配性强。
在一种可能的实现方式中,所述控制模组还包括第二密封结构,所述第二密封结构位于所述第二壳体和所述第二表面之间,用于密封所述第二壳体与所述第二表面。所述第二密封结构为中空的环状,通过所述第二密封结构实现所述第二收容空间的密封,在一实施方式中,所述第二密封结构可以为密封胶条。在一实施方式中,所述第二密封结构位于所述第二表面的边缘,以使所述第二表面的大部分作为所述第二收容空间的底部,提升散热效果。
在一实施方式中,所述第二密封结构的形状、材质、大小等特征可与所述第一密封结构相同或者不同。
在一实施方式中,所述第二壳体和所述第二表面以螺栓方式连接,通过拆装螺栓,以实现所述第二壳体和所述第二表面的拆卸与连接,同时通过所述第二密封结构进行密封,以实现所述第二壳体和所述第二表面之间密封且可拆卸连接,且可通过调整所述第二壳体和所述第二表面的压紧程度,使所述第二密封结构与所述第二壳体和所述第二表面均过盈配合,达到更好的密封效果。在本申请中,所述第二密封结构为密封胶条,密封胶条与所述第二表面、所述第二壳体均不固定连接,通过螺栓将所述第二壳体和所述第二表面锁紧,并将密封胶条压紧,挤压在所述第二壳体和所述第二表面之间,以实现所述第二壳体和所述第二表面的密封,也就是在通过螺栓将所述第二壳体和所述第二表面可拆卸连接,通过所述第二密封结构将所述第二壳体和所述第二表面密封。当需要拆卸对所述第二电路板维修时,可先拆卸螺栓,再将所述第二壳体从所述冷板上拿下,就可以对所述第二电路板维修。
在一实施方式中,所述冷板和所述第二壳体之间采用标准安装接口,实现一块所述冷板适配不同类型的所述第二壳体。
在一实施方式中,所述第二壳体和所述第二表面也可通过卡扣等其他方式连接。在一实施方式中,所述第二密封结构与所述第二壳体固定连接,而后抵接至所述第二表面,所述第二密封结构的位置相对固定,可更稳定地实现密封作用。在一实施方式中,所述第二密封结构也可与所述第二表面固定连接,而后抵接至所述第二壳体,所述第二密封结构的位置相对固定,可更稳定地实现密封作用。
在一实施方式中,所述第二表面上设有沿所述第一方向朝向所述第一表面凹陷的凹槽,所述第二密封结构位于凹槽内,所述第二壳体沿所述第一方向靠近所述第二表面的表面设有凸台,凸台挤压凹槽内的第二密封结构以实现所述第二壳体与所述第二表面的密封,所述第二密封结构与凹槽、凸台均过盈配合。在一实施方式中,所述第二表面上也可设有沿所述第一方向朝向所述第二壳体凸起的凸台,所述第二壳体沿所述第一方向靠近所述第二表面的表面设有凹槽,所述第二密封结构位于凹槽内,凸台挤压凹槽内的所述第二密封结构以实现所述第二壳体与所述第二表面的密封。
在本申请中,通过所述第二密封结构的设置,一方面,所述第二密封结构不与所述第二壳体和所述第二表面固定连接,或所述第二密封结构仅与所述第二壳体或所述第二表面固定连接,可实现所述第二壳体和所述第二表面之间密封且可拆卸连接,所述第二电路板发生故障时,能够将所述第二电路板从所述第二壳体上完全拆下进行维修,而不需要损坏所述第二壳体以及不破坏所述第二电路板,提高了所述第二电路板维修的便利性;另一方面,利用所 述第二密封结构进行密封,拆装效率高,且所述第二密封结构具有一定的弹性及柔软度,即使所述第二表面或所述第二壳体沿所述第一方向靠近所述第二表面的表面不平整,也可起到较好的密封效果,适配性强。
在一种可能的实现方式中,所述控制模组还包括第一连接器,所述第一连接器穿设在所述第一壳体上且所述第一连接器的两端分别位于所述第一收容空间内部和外界,所述第一连接器的外围设有第三密封结构,所述第三密封结构连接至所述第一壳体,用于实现所述第一收容空间和外界的隔离。其中,所述第一连接器用于实现所述第一电路板与外界的信息交流,所述第一连接器与所述第一收容空间内部的所述第一电路板电连接,且所述第一连接器自所述第一收容空间内部延伸至所述第一收容空间外部,所述第一连接器与所述第一壳体之间通过所述第三密封结构密封。
在一实施方式中,电子控制单元也包括连接器,即将所述第一电路板、所述第一壳体和所述第一连接器的整体称为第一电子控制单元。在一实施方式中,所述第一连接器可以为CAN连接器、以太网连接器或摄像头连接器等。在一实施方式中,所述控制模组可包括多个所述第一连接器,多个所述第一连接器可以为相同类型的连接器,也可以为不同类型的连接器,为了使所述控制模组可适配各种情形,可预设较多数量或多种类型的所述第一连接器,而后根据实际需要选取其中部分所述第一连接器使用。在一实施方式中,所述第一连接器也可为标准化连接器,可以通过增减所述第一连接器数量来适配不同情境下对所述第一连接器数量的要求。
在一实施方式中,所述第一壳体包括第一围框和位于所述第一围框远离所述第一表面的第一盖板,所述第一围框、所述第一盖板和所述第一表面围成所述第一收容空间,所述第一连接器设置在所述第一围框上。
在一种可能的实现方式中,所述第一壳体上设有与所述第一收容空间连通的第一开孔,所述第三密封结构为胶水,所述第一连接器通过所述胶水固定在所述第一开孔中,且所述第一连接器的一端延伸至所述第一收容空间内并与所述第一电路板可拆卸连接。第一开孔设置在所述第一围框上,通过点胶水使所述第一连接器与所述第一围框固定连接,此时,将所述第一电路板与所述第一连接器设置成可拆卸连接,保证所述第一电路板的维修便利性。
在一实施方式中,所述第一连接器也可通过焊接等方式固定在所述第一壳体上,或所述第一连接器与所述第一壳体一体成型。
在一种可能的实现方式中,所述控制模组还包括第一连接板和设置在所述第一连接板上的第一电路板连接器,所述第一连接板与所述第一连接器固定连接,所述第一电路板与所述第一连接板通过所述第一电路板连接器可拆卸连接。所述第一连接板通过焊接或者点胶水的方式与所述第一连接器固定连接,所述第一连接器也可通过焊接或者点胶水的方式与所述第一连接板固定连接,此时,所述第一连接器与所述第一壳体的连接方式可不作限制,所述第一连接器与所述第一壳体为可拆卸连接或者不可拆卸连接,均不影响所述第一电路板的拆装。
在一实施方式中,所述第一连接板可为普通的导电板块,所述第一连接板不设置器件,或者所述第一连接板上只有少量可靠性高的无源器件。在一实施方式中,所述第一电路板连接器可以为BTB连接器
在一种可能的实现方式中,所述第一电路板位于所述第一电路板连接器邻近所述第一表面的一侧。在拆卸所述第一电路板时,由于所述第一壳体与所述冷板通过所述第一密封结构可拆卸连接,可直接将所述第一壳体从所述冷板上拆下,再将所述第一电路板沿所述第一方向远离所述第一盖板的方向拔出,这种拆卸方式便捷且不会损坏所述第一电路板。
在一种可能的实现方式中,所述第三密封结构包括第一密封胶条和第一防护罩,所述第一壳体上设有与所述第一收容空间连通的第一开孔,所述第一连接器穿设在所述第一开孔中,所述第一连接器的一端延伸至所述第一收容空间内并与所述第一电路板固定,所述第一连接器的另一端延伸至所述第一收容空间外部,所述第一防护罩罩设在所述第一连接器远离所述第一电路板的一端,且所述第一防护罩与所述第一壳体远离所述第一电路板的表面之间通过所述第一密封胶条密封。
其中,部分所述第一连接器位于所述第一收容空间内,另一部分所述第一连接器位于所述第一防护罩内,所述第一防护罩通过所述第一密封胶条与所述第一壳体密封且可拆卸连接,通过设置所述第一密封胶条和所述第一防护罩,将所述第一收容空间连同所述第一防护罩内的空间均被密封起来,此时,所述第一连接器与所述第一壳体为接触设置,所述第一连接器与所述第一壳体并非为不可拆卸连接,所述第一连接器可直接焊接在所述第一电路板上,拆卸时,可直接将所述第一壳体从所述冷板上拆下后,将所述第一防护罩拆下,再将所述第一电路板和所述第一连接器一起从所述第一壳体拆下。
在一实施方式中,所述第一密封胶条可预先固定在所述第一壳体上,所述第一防护罩抵接至所述第一密封胶条以实现密封,此时所述第一密封胶条可全部位于所述第一围框上,也可部分位于所述第一围框上,部分位于所述第一盖板上。在一实施方式中,所述第一密封胶条预先固定在所述第一防护罩上,所述第一密封胶条抵接至所述第一壳体上以实现密封。在一实施方式中,所述第一连接器远离所述第一电路板的一端设有线缆,所述第一防护罩远离所述第一电路板的一侧相对设置开口以容纳线缆穿过,线缆与开口可通过点胶方式密封固定。
本申请中提供的所述第一连接器与所述第一壳体的密封连接方式,实施更为简单、可操作性更强。
在一种可能的实现方式中,所述第一壳体包括第一围框和位于所述第一围框远离所述第一表面的第一盖板,所述第一围框、所述第一盖板和所述第一表面围成所述第一收容空间;所述第一围框和所述第一盖板之间还设有第五密封结构,所述第五密封结构位于所述第一围框和所述第一盖板之间,并分别与所述第一围框和所述第一盖板可拆卸连接,所述第五密封结构用于密封所述第一围框和所述第一盖板。
所述第一围框与所述第一表面密封且可拆卸连接所述第一盖板位于所述第一围框沿所述第一方向远离所述第一表面的一侧,在本申请中,所述第一盖板与所述第一表面平行或者近似平行。通过设置所述第五密封结构,使所述第一电路板的维修更加便利。
在一实施方式中,所述控制模组还包括所述第一连接板和设置在所述第一连接板上的所述第一电路板连接器,所述第一连接板与所述第一连接器固定连接,所述第一电路板与所述第一连接板通过所述第一电路板连接器可拆卸连接,所述第一电路板位于所述第一电路板连接器远离所述第一表面的一侧。在拆卸所述第一电路板时,直接将所述第一盖板取下,再将所述第一电路板沿所述第一方向远离所述冷板的方向拔出,这种拆卸方式便捷、不会损坏所述第一电路板,且不需要将所述第一壳体从所述冷板上拆下。
在一种可能的实现方式中,所述控制模组还包括第二连接器,所述第二连接器穿设在所述第二壳体上且所述第二连接器的两端分别位于所述第二收容空间内部和外界,所述第二连接器的外围设有第四密封结构,所述第四密封结构连接至所述第二壳体,用于实现所述第二收容空间和外界的隔离。其中,所述第二连接器用于实现所述第二电路板与外界的信息交流,所述第二连接器与所述第二收容空间内部的所述第二电路板电连接,且所述第二连接器自所述第二收容空间内部延伸至所述第二收容空间外部,所述第二连接器与所述第二壳体之间通 过所述第四密封结构密封。
在一实施方式中,电子控制单元也包括连接器,即将所述第二电路板、所述第二壳体和所述第二连接器的整体称为所述第一电子控制单元。在一实施方式中,所述第二连接器可以为CAN连接器、以太网连接器或摄像头连接器等。在一实施方式中,所述控制模组可包括多个所述第二连接器,多个所述第二连接器可以为相同类型的连接器,也可以为不同类型的连接器,为了使所述控制模组可适配各种情形,可预设较多数量或多种类型的所述第二连接器,而后根据实际需要选取其中部分所述第二连接器使用。在一实施方式中,所述第二连接器也可为标准化连接器,可以通过增减所述第二连接器数量来适配不同情境下对所述第二连接器数量的要求。
在一实施方式中,所述第二壳体包括第二围框和位于所述第二围框远离所述第一表面的第二盖板,所述第二围框、所述第二盖板和所述第一表面围成所述第二收容空间,所述第二连接器设置在所述第二围框上。
在一种可能的实现方式中,所述第二壳体上设有与所述第二收容空间连通的第二开孔,所述第四密封结构为胶水,所述第二连接器通过点胶固定在第二开孔中,且所述第二连接器的一端延伸至所述第二收容空间内并与所述第二电路板可拆卸连接。第二开孔设置在所述第二围框上,通过点胶水使所述第二连接器与所述第二围框固定连接,此时,将所述第二电路板与所述第二连接器设置成可拆卸连接,保证所述第二电路板的维修便利性。
在一实施方式中,所述第二连接器也可通过焊接等方式固定在所述第二壳体上,或所述第二连接器与所述第二壳体一体成型。
在一种可能的实现方式中,所述控制模组还包括第二连接板和设置在所述第二连接板上的第二电路板连接器,所述第二连接板与所述第二连接器固定连接,所述第二电路板与所述第二连接板通过所述第二电路板连接器可拆卸连接。所述第二连接板通过焊接或者点胶的方式与所述第二连接器固定连接,所述第二连接器也可通过焊接或者点胶水的方式与所述第二连接板固定连接,此时,所述第二连接器与所述第二壳体的连接方式可不作限制,所述第二连接器与所述第二壳体为可拆卸连接或者不可拆卸连接,均不影响所述第二电路板的拆装。
在一实施方式中,所述第二连接板可为普通的导电板块,所述第二连接板不设置器件,或者所述第二连接板上只有少量可靠性高的无源器件。在一实施方式中,所述第二电路板连接器可以为BTB连接器。
在一种可能的实现方式中,所述第二电路板位于所述第二电路板连接器邻近所述第二表面的一侧。在拆卸所述第二电路板时,由于所述第二壳体与所述冷板通过所述第二密封结构可拆卸连接,可直接将所述第二壳体从所述冷板上拆下,再将所述第二电路板沿所述第一方向远离所述第二盖板的方向拔出,这种拆卸方式便捷且不会损坏所述第二电路板。
在一种可能的实现方式中,所述第四密封结构包括第二密封胶条和第二防护罩,所述第二壳体上设有与所述第二收容空间连通的第二开孔,所述第二连接器穿设在第二开孔中,所述第二连接器的一端延伸至所述第二收容空间内并与所述第二电路板固定,所述第二连接器的另一端延伸至所述第二收容空间外部,所述第二防护罩罩设在所述第二连接器远离所述第二电路板的一端,且所述第二防护罩与所述第二壳体远离所述第二电路板的表面之间通过所述第二密封胶条密封。
其中,部分所述第二连接器位于所述第二收容空间内,另一部分所述第二连接器位于所述第二防护罩内,所述第二防护罩通过所述第二密封胶条与所述第二壳体密封且可拆卸连接,通过设置所述第二密封胶条和所述第二防护罩,将所述第二收容空间连同所述第二防护罩内 的空间均被密封起来,此时,所述第二连接器与所述第二壳体为接触设置,所述第二连接器与所述第二壳体并非为不可拆卸连接,所述第二连接器可直接焊接在所述第二电路板上,拆卸时,可直接将所述第二壳体从所述冷板上拆下后,将所述第二防护罩拆下,再将所述第二电路板和所述第二连接器一起从所述第二壳体拆下。
在一实施方式中,所述第二密封胶条可预先固定在所述第二壳体上,所述第二防护罩抵接至所述第二密封胶条以实现密封,此时所述第二密封胶条可全部位于所述第一围框上,也可部分位于所述第一围框上,部分位于所述第一盖板上。在一实施方式中,所述第二密封胶条预先固定在所述第二防护罩上,所述第二密封胶条抵接至所述第二壳体上以实现密封。在一实施方式中,所述第二连接器远离所述第二电路板的一端设有线缆,所述第二防护罩远离所述第二电路板的一侧相对设置开口以容纳线缆穿过,线缆与开口可通过点胶方式密封固定。
在一种可能的实现方式中,所述第一电子控制单元和所述第二电子控制单元与所述冷板的密封固定方式不同,例如,在所述第一电子控制单元中,所述第一电路板与所述第一连接板通过所述第一电路板连接器可拆卸连接,所述第一连接器通过点胶或者焊接与所述第一壳体密封且固定连接;在所述第二电子控制单元中,所述第二连接器通过焊接与所述第二电路板固定连接,所述第四密封结构包括所述第二密封胶条和所述第二防护罩,所述第二防护罩与所述第二壳体通过所述第二密封胶条密封,以使所述第二收容空间连同所述第二防护罩内的空间均被密封起来。
本申请中提供的所述第二连接器与所述第二壳体的密封连接方式,实施更为简单、可操作性更强。
在一种可能的实现方式中,所述第二壳体包括第二围框和位于所述第二围框远离所述第二表面的第二盖板,所述第二围框、所述第二盖板和所述第二表面围成所述第二收容空间;所述第二围框和所述第二盖板之间还设有第六密封结构,所述第六密封结构位于所述第二围框和所述第二盖板之间,并分别与所述第二围框和所述第二盖板可拆卸连接,所述第六密封结构用于密封所述第二围框和所述第二盖板。所述第二围框与所述第二表面密封且可拆卸连接所述第二盖板位于所述第二围框沿所述第一方向远离所述第二表面的一侧,在一实施方式中,所述第二盖板与所述第二表面平行或者近似平行。通过所述第六密封结构的设置,使所述第二电路板的维修更加便利。
在一实施方式中,所述控制模组还包括第二连接板和设置在所述第二连接板上的第二电路板连接器,所述第二连接板与所述第二连接器固定连接,所述第二电路板与所述第二连接板通过所述第二电路板连接器可拆卸连接,所述第二电路板位于所述第二电路板连接器远离所述第二表面的一侧。在拆卸所述第二电路板时,直接将所述第二盖板取下,再将所述第二电路板沿所述第一方向远离所述冷板的方向拔出,这种拆卸方式便捷、不会损坏所述第二电路板,且不需要将所述第一壳体从所述冷板上拆下。
第二方面,本申请提供一种散热系统,所述散热系统包括散热组件和如上任一项所述的控制模组,所述散热组件用于对所述冷板散热,以使所述冷板冷却所述第一电路板和所述第二电路板。
在一实施方式中,所述散热组件包括冷却管路和泵,所述冷却管路中具有冷却液,所述冷板与所述冷却管路连通,所述泵用于驱动所述冷却液在所述冷却管路和所述冷板内流动,以使所述冷板冷却所述第一电路板和所述第二电路板。
冷却液在循环的过程中,能够将所述冷板的热量带走,从而降低所述冷板的温度,所述泵为冷却液的循环提供动力,在一实施方式中,所述散热系统还包括冷却器,所述冷板还设 有进液口和出液口,在所述泵的作用下,冷却液在所述冷却器和所述冷板之间循环,将所述冷板的热量转移至所述冷却器,所述冷却器将流入的较高温度的冷却液转变为较低温度的冷却液并将其排出,较低温度的冷却液通过进液口进入所述冷板内用于冷却所述第一电路板和所述第二电路板,所述冷板内较高温度的冷却液通过出液口流出至所述冷却器上进行冷却以继续参与循环。
在一实施方式中,散热系统可包括一个或者多个所述控制模组。
第三方面,本申请提供一种电子设备,所述电子设备包括设备本体和如上所述的散热系统,所述散热系统安装于所述设备本体上。
第四方面,本申请提供一种车辆,所述车辆包括车架和如上所述的散热系统,所述散热系统安装于所述车架上。
本申请中,控制模组集成了两个电子控制单元,冷板同时对两个电子控制单元进行散热,可减小体积,便于安装。同时,第一壳体和第二壳体与冷板之间密封且可拆卸连接设置,保证了电路板的密封性,且第一壳体、第二壳体与冷板的可拆卸连接保证了电路板的维修便利性,实现了电子控制单元的防水防尘,拆装方便、便于维修,保证电子控制单元高效率且稳定地工作。
为了更清楚地说明本申请实施例中的技术方案,下面将对本申请实施例中所需要使用的附图进行说明。
图1是本申请一实施方式提供的电子设备的结构示意图;
图2是本申请一实施方式提供的控制模组的爆炸图;
图3是本申请一实施方式提供的控制模组的剖面图;
图4是本申请一实施方式提供的第一壳体、第二壳体与冷板的示意图;
图5是本申请一实施方式提供的第一壳体与冷板的示意图;
图6是本申请一实施方式提供的控制模组的剖面图;
图7是本申请一实施方式提供的控制模组的剖面图;
图8是本申请一实施方式提供的控制模组的剖面图;
图9是本申请一实施方式提供的控制模组的剖面图;
图10是本申请一实施方式提供的散热系统的示意图;
图11是本申请一实施方式提供的控制模组中冷板与第一壳体、第二壳体的剖面图。
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述,显然,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。
本文中,术语“第一”、“第二”等仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中,除非另有说明,“多个”的含义是两个或两个以上。
此外,本文中,“上”、“下”等方位术语是相对于附图中的结构示意置放的方位来定义的,应当理解到,这些方向性术语是相对的概念,它们用于相对于的描述和澄清,其可以根据结 构所放置的方位的变化而相应地发生变化。
为方便理解,下面先对本申请实施例所涉及的英文简写和有关技术术语进行解释和描述。
电子控制单元:即Electronic Control Unit(ECU),又称“行车电脑”、“车载电脑”等,从用途上讲则是汽车专用微机控制器。
CAN:为Controller Area Network的缩写,即控制器局域网络。
IP67:是指防护安全级别。IP是Ingress Protection Rating(或者International Protection code)的缩写,它定义了一个界面对液态和固态微粒的防护能力。IP67是指,防护灰尘吸入(整体防止接触,防护灰尘渗透);防护短暂浸泡(防浸)。
本申请提供一种控制模组,控制模组包括冷板、第一壳体、第一电路板、第二壳体和第二电路板,冷板包括沿厚度方向排布的第一表面和第二表面,第一壳体与第一表面围设构成第一收容空间,第二壳体与第二表面围设构成第二收容空间,第一壳体和第二壳体均与冷板密封且可拆卸连接,第一电路板和第二电路板分别位于第一收容空间和第二收容空间内,第一电路板设有第一芯片和第一导热结构,第一芯片与第一表面之间具有第一导热结构,冷板通过第一导热结构为第一芯片散热,第二电路板设有第二芯片和第二导热结构,冷板通过第二导热结构为第二芯片散热。本申请中的控制模组中的两个电路板共用一个冷板,散热效果良好,且控制模组的体积更小,以适应小尺寸化场景的需求,便于安装。
本申请的控制模组可应用在电子设备上,电子设备包括设备本体和控制模组,控制模组安装在设备本体上。其中电子设备包括车辆、运输设备、机器人。示例性的,当电子设备为车辆时,控制模组可为车载控制模组。下面以电子设备为车辆为例进行说明,随着智能车技术的发展,车载的电子设备越来越多,如雷达、摄像头、电机、防抱死制动系统、四轮驱动系统、电控自动变速器、主动悬架系统、安全气囊系统、多向可调电控座椅等,这些电子设备通常都与电子控制单元相连,请参阅图1,图1是本申请一实施方式提供的电子设备的结构示意图,图1中控制模组10可以包括一个或多个电子控制单元,每个电子控制单元可分别用于控制自动驾驶系统11、车载娱乐系统12及通信系统13中的至少一个等。
电子控制单元(ECU)是车辆的“行车电脑”,用于各种传感器的信息采集、运算、处理、判断并输出操作指令,电子控制单元一般由微处理器(CPU)、存储器(ROM、RAM)、输入/输出接口(I/O)、模数转换器(A/D)以及整形、驱动等大规模集成电路组成。
电子控制单元在工作中,自身元器件会发热,尤其是随着车辆的发展,电子控制单元需要处理的数据量越来越大,对于电子控制单元的算力需求也就不断提升,电子控制单元内部的电路板上的电子元器件自然也就越来越多,电路集成度几何级增长,电子控制单元的工作负荷大大增加,导致发热量大增,同时,为了缩短不同电子控制单元之间的线缆长度、减少各个电子控制单元的算例冗余,各个电子控制单元逐渐集中化,散热困难的问题更为突出。并且,电子控制单元通常安装在发动机舱内,舱内的高温环境对电子控制单元的电子元件的运行会产生影响,导致电子控制单元温度更高。
高温会影响电子控制单元的性能和稳定性。若不及时对电子控制单元进行冷却,会导致电子控制单元运行缓慢,严重时甚至出现元器件烧毁影响行车安全。为了使电子控制单元在发热量大增的情况下能够高效率且稳定地工作,就需要提高电子控制单元的散热能力及加强对电子控制单元的保护。本申请提供的控制模组具有较好的散热能力,两个电子控制单元共用冷板散热,还能减小体积,更容易安装。
请参阅图2和图3,图2是本申请一实施方式提供的控制模组10的爆炸图,图3是本申请一实施方式提供的控制模组10的剖面图,本申请第一实施例提供一种控制模组10,控制模组包括冷板300、第一壳体110、第一电路板120、第二壳体210和第二电路板220,冷板300包括沿厚度方向排布的第一表面301和第二表面302;第一壳体110位于第一表面301同侧,且与第一表面301围设构成第一收容空间101(如图3所示),第一壳体110与冷板300之间密封且可拆卸连接;第一电路板120位于第一收容空间101内且与第一壳体110可拆卸连接,第一电路板120朝向第一表面301的一侧设有第一芯片121,第一芯片121与第一表面301之间具有第一导热结构122,冷板300通过第一导热结构122为第一芯片121散热;第二壳体210位于第二表面302同侧,且与第二表面302围设构成第二收容空间201,第二壳体210与冷板300之间密封且可拆卸连接;第二电路板220位于第二收容空间201内且与第二壳体210可拆卸连接,第二电路板220朝向第二表面302的一侧设有第二芯片221,第二芯片221与第二表面302之间具有第二导热结构222,冷板300通过第二导热结构222为第二芯片221散热。
其中,冷板300也称冷却板,冷板300可维持较低温度,用于冷却第一芯片121和第二芯片221,也可以用于冷却第一电路板120和第二电路板220。在一实施方式中,可根据第一芯片121和第二芯片221的发热情况调节冷板300的温度,以达到较好的冷却效果。其中,冷板300的厚度方向为第一方向X,冷板300的第一表面301和第二表面302沿第一方向X排布。在本实施方式中,冷板300为长方体,第一方向X为冷板300的厚度方向,第一表面301和第二表面302为冷板300中面积最大的两个表面,在保证较高的冷却效率的同时,减小冷板300的体积。
在一实施方式中,冷板300内呈中空结构,内部设有冷却液,冷板300还设有进液口和出液口(图中未示出),通过冷却液与冷却第一芯片121和第二芯片221实现热交换,以冷却第一芯片121和第二芯片221。在其他实施方式中,冷板300也可以为其他形状,具体可根据第一壳体110、第二壳体210以及周围环境以调整冷板300的形状。在一些实施方式中,冷板300为风冷冷板,在冷板300内设有风扇,风扇驱动冷板300内与冷板300外的气流循环,以实现热交换,冷却第一芯片121和第二芯片221。
在本实施方式中,将电路板和壳体一起称为电子控制单元,即在本实施方式中,可将第一电路板120与第一壳体110称为第一电子控制单元100,将第二电路板220与第二壳体210称为第二电子控制单元200,第一电子控制单元100和第二电子控制单元200可分别用于控制自动驾驶系统11、车载娱乐系统12及通信系统13等。在一实施方式中,也可单独将第一电路板120称为第一电子控制单元100,第二电路板220称为第二电子控制单元200。
在一实施方式中,第一电子控制单元100用于控制自动驾驶系统11(如图1和图3所示),第一电路板120在收集信号后得知车辆当前工况信息,自动规划行车路线并智能控制车辆在预设的行车路线上行驶。在一实施方式中,第二电子控制单元200用于控制车载娱乐系统12,可实现媒体播放、手势识别、人脸识别、驾驶行为监控、360度全景影像、语音本地识别、与仪表或其它屏互动等,满足驾驶者的驾驶体验要求。在一实施方式中,第一电子控制单元100或第二电子控制单元200也可以用于控制通信系统13,可实现车辆到车辆的通信以及车辆到基础设施的通信,如通过车辆间的通信指明在车辆行驶的路况以及车辆的转弯、超车、减速、变道等信息,或者通过车辆与通信基站间的通信,获取精确定位、获取或传播路况信息以便防止事故。在一实施方式中,第一电子控制单元100和第二电子控制单元200可根据需要,用于控制其他功能系统或者控制多种功能系统,第一电子控制单元100和第二电子控 制单元200也可协调控制同一种功能系统。
第一电路板120、第二电路板220和冷板平行或者近似平行设置,第一芯片121固定在第一电路板120上并与第一电路板120电连接,第一电路板120上可设有一个或者多个第一芯片121,多个第一芯片121的功能可以相同也可以不同;第二芯片221固定在第二电路板220上并与第二电路板220电连接,第二电路板220上可设有一个或者多个第二芯片221,多个第一芯片121之间的功能可以相同也可以不同,且第二芯片221与第一芯片121的数量、功能可以相同也可以不同,本申请对此不作限制。
在车辆行驶过程中,控制模组10中的热量来源主要为一个或多个第一芯片121以及一个或多个第二芯片221的发热,因此直接对第一芯片121和第二芯片221进行散热即冷却第一电子控制单元100和第二电子控制单元200。由于第一芯片121和第二芯片221直接与冷板300接触的散热效果不佳,且若不同的第一芯片121或不同的第二芯片221在第一方向X上的厚度不同,如图3中的第一芯片121a和第一芯片121b,厚度较小的芯片难以与冷板300贴合,导致部分芯片不能实现较好的散热效果,而在本实施方式中,在第一芯片121沿第一方向X远离第一电路板120的一侧增设第一导热结构122,在第二芯片221沿第一方向X远离第二电路板220的一侧增设第二导热结构222,一方面,第一导热结构122和第二导热结构222的设置可填充芯片和冷板300之间的空气间隙,导热结构(122、222)能够覆盖芯片的不平整的表面,增大芯片的散热面积,使芯片的热量可更好地传导至冷板300上进行散热,从而能提高电子控制单元的效率和使用寿命;另一方面,导热结构(122、222)的设置使得每个不同厚度的芯片可以与冷板300间接接触,利用冷板300实现散热;再一方面,第一导热结构122也可用于支撑第一芯片121,第二导热结构222也可用于支撑第二芯片221,提升第一电路板120和第二电路板220的结构强度。
在一实施方式中,第一导热结构122和第二导热结构222具有柔性、弹性等特征,以使第一导热结构122能够覆盖第一芯片121沿第一方向X远离第一电路板120的全部或局部表面,第二导热结构222覆盖第二芯片221沿第一方向X远离第二电路板220的全部或局部表面,使第一芯片121和第二芯片221可实现更好的散热。在一实施方式中,第一电路板120或第二电路板220上未设芯片的部位存在温度较高的问题时,也可在相应位置增设导热结构,以将该位置的热量通过导热结构传递至冷板300进行散热。
本实施方式中,充分利用冷板300的第一表面301和第二表面302分别冷却第一芯片121和第二芯片221,可节省能耗,且相较于只用一个冷板冷却一个电子控制单元的实施方式,本实施方式中利用一个冷板300即可冷却两个电子控制单元,使控制模组10的体积更小,以适应小尺寸化场景的需求,便于安装。
第一壳体110用于保护第一电路板120(如图3所示),防止第一电路板120与外部器件撞击而损坏,且第一壳体110与第一表面301共同围设构成第一收容空间101,第一收容空间101为密闭空间,一方面,可将第一电路板120与外界环境密封隔绝,以使第一电路板120达到防尘防水的目的,本一实施方式中,还可以将对第一电路板120的密封等级达到I P67或以上的密封等级,第一收容空间101也可防止外界的水气进入第一收容空间101后因温度过低而冷凝为冷凝水,冷凝水落在第一电路板120上导致第一电路板120损坏;另一方面,冷板300不仅起到冷却作用,且作为围设第一收容空间101的一部分,实现了对冷板300的充分利用,同时,第一导热结构122直接与冷板300贴合连接,可起到更好的散热效果,冷板300也可以通过冷却第一收容空间101内的空气以降低第一电路板120的温度。在一实施方式中,第一收容空间101内还放置有干燥剂,用于去除第一收容空间101内的水分,保证第 一收容空间101处于干燥状态,避免第一收容空间101内的水分因温度过低而冷凝至第一电路板120上导致第一电路板120损坏,若第一收容空间101并非密闭空间,外界的水气容易渗透至第一收容空间101内,干燥剂容易失效,经常更换干燥剂也会导致成本升高且费时费力,而本实施方式中,通过将第一收容空间101设置成密闭空间,且配合干燥剂的使用,可以更好地保护第一电路板120不受水气的侵害。
其中,可拆卸连接是指相互连接的两个部件在不被破坏的情况可分离,例如第一壳体110与冷板300之间可拆卸连接,是指在正常使用时,第一壳体110和冷板300相对固定,在需要维修时,第一壳体110和冷板300可分离,但不破坏第一壳体110或者冷板300。由于第一壳体110与冷板300之间可拆卸连接且第一电路板120与第一壳体110可拆卸连接,当第一电路板120发生故障时,能够将第一电路板120从第一壳体110上完全拆下进行维修,而不需要损坏第一壳体110以及不破坏第一电路板120,提高了第一电路板120维修的便利性,或者需要更换第一电路板120时,可复用旧的第一壳体110,以降低成本,同时,当第一壳体110存在破损情况时,可仅更换第一壳体110,将第一电路板120拆装至新的第一壳体110即可。
第二壳体210用于保护第二电路板220(如图3所示),防止第二电路板220与外部器件撞击而损坏,且第二壳体210与第二表面302共同围设构成第二收容空间201,第二收容空间201为密闭空间,一方面,可将第二电路板220与外界环境密封隔绝,以使第二电路板220达到防尘防水的目的,本一实施方式中,还可以将对第二电路板220的密封等级达到可I P67或以上的密封等级,第二收容空间201也可防止外界的水气进入第二收容空间201后因温度过低而冷凝至第二电路板220上导致第二电路板220损坏;另一方面,冷板300不仅起到冷却作用,且作为围设第二收容空间201的一部分,实现了对冷板300的充分利用,同时,第二导热结构222直接与冷板300贴合连接,可起到更好的散热效果,冷板300也可以通过冷却第二收容空间201内的空气以降低第二电路板220的温度。第二收容空间201内也可放置干燥剂,用于去除第二收容空间201内的水分。由于第二壳体210与冷板300之间可拆卸连接且第二电路板220与第二壳体210可拆卸连接,当第二电路板220发生故障时,能够将第二电路板220从第二壳体210上完全拆下进行维修,而不需要损坏第二壳体210以及不破坏第二电路板220,提高了第二电路板220维修的便利性,或者需要更换第二电路板220时,可复用旧的第二壳体210,以降低成本,同时,当第二壳体210存在破损情况时,可仅更换第二壳体210,将第二电路板220拆装至新的第二壳体210即可。
在一实施方式中,第二壳体210与第一壳体110的大小、形状相等(如图3所示),且第二壳体210与第一壳体110在冷板300的正投影正好覆盖冷板300的表面,使冷板300的利用率最大化。在其他实施方式中,也存在第二壳体210与第一壳体110大小不一致的情况(如图4所示),本申请对此不作限制。示例性的,第一壳体110在冷板300的正投影位于第一表面301内,或者第一壳体110在冷板300的正投影面积小于第一表面301的面积,第二壳体210在冷板300的正投影位于第二表面302内,或者第二壳体210在冷板300的正投影面积小于第二表面302的面积。示例性,第一壳体110在冷板300的正投影面积大于第一表面301的面积,第二壳体210在冷板300的正投影面积大于第二表面302的面积。
本申请提供的控制模组10集成了两个电子控制单元(100、200),两个电子控制单元共用一个冷板,散热效果良好,且控制模组10的体积更小,以适应小尺寸化场景的需求,便于安装。同时保证了电路板的密封性及维修便利性,实现了电子控制单元的防水防尘,拆装方便、便于维修,保证电子控制单元高效率且稳定地工作,还能节约能耗、降低成本。
在一种可能的实现方式中,控制模组10还包括第一密封结构410(如图3所示),第一密封结构410位于第一壳体110和第一表面301之间,用于密封第一壳体110与第一表面301。第一密封结构410为中空的环状,通过第一密封结构410实现第一收容空间101的密封,在一实施方式中,第一密封结构410可以为密封胶条。在一实施方式中,第一密封结构410位于第一表面301的边缘,以使第一表面301的大部分作为第一收容空间101的底部,提升散热效果。
在一实施方式中,第一壳体110和第一表面301以螺栓方式连接(如图11所示),通过拆装螺栓304,以实现第一壳体110和第一表面301的拆卸与连接,同时通过第一密封结构410进行密封,以实现第一壳体110和第一表面301之间密封且可拆卸连接,且可通过调整第一壳体110和第一表面301的压紧程度,使第一密封结构410与第一壳体110和第一表面301均过盈配合,达到更好的密封效果。
在本实施方式中,第一密封结构410为密封胶条,密封胶条与第一表面301、第一壳体110均不固定连接,通过螺栓将第一壳体110和第一表面301锁紧,并将密封胶条压紧,挤压在第一壳体110和第一表面301之间,以实现第一壳体110和第一表面301的密封,也就是在通过螺栓将第一壳体110和第一表面301可拆卸连接,通过第一密封结构410将第一壳体110和第一表面301密封。当需要拆卸对第一电路板120维修时,可先拆卸螺栓,再将第一壳体110从冷板300上拿下,就可以对第一电路板120维修。
在一实施方式中,冷板300和第一壳体110之间采用标准安装接口,实现一块冷板300适配不同类型的第一壳体110。
在一实施方式中,第一壳体110和第一表面301也可通过卡扣等其他方式连接。在一实施方式中,第一密封结构410与第一壳体110固定连接,而后抵接至第一表面301,第一密封结构410的位置相对固定,可更稳定地实现密封作用。在一实施方式中,第一密封结构410也可与第一表面301固定连接,而后抵接至第一壳体110,第一密封结构410的位置相对固定,可更稳定地实现密封作用。
在一实施方式中,第一表面301上设有沿第一方向X朝向第二表面302凹陷的凹槽303(如图5所示),第一密封结构410位于凹槽303内,第一壳体110沿第一方向X靠近第一表面301的表面设有凸台113,凸台113挤压凹槽303内的第一密封结构410以实现第一壳体110与第一表面301的密封,第一密封结构410与凹槽303、凸台113均过盈配合。在一实施方式中,第一表面301上也可设有沿第一方向X朝向第一壳体110凸起的凸台,第一壳体110沿第一方向X靠近第一表面301的表面设有凹槽,第一密封结构410位于凹槽内,凸台挤压凹槽内的第一密封结构410以实现第一壳体110与第一表面301的密封。其中,第一密封结构410的横截面形状不限于图5所示的形状,第一密封结构410的横截面形状还可以圆形、椭圆形、方形等。
若通过焊接或者点胶水的方式将第一壳体110和第一表面301密封,第一壳体110和第一表面301则为不可拆卸地连接,在第一电路板120发生故障时,需要破坏第一壳体110以将第一电路板120取出进行维修,在取出过程中,第一电路板120还容易被进一步损坏,同时,当第一表面301或第一壳体110沿第一方向X靠近第一表面301的表面不平整时,焊接或者点胶水的密封方式施工困难,容易出现密封不彻底的现象,不能适配各种场景。
而在本实施方式中,通过第一密封结构410的设置,一方面,第一密封结构410不与第一壳体110和第一表面301固定连接,或第一密封结构410仅与第一壳体110或第一表面301固定连接,可实现第一壳体110和第一表面301之间密封且可拆卸连接,第一电路板120发 生故障时,能够将第一电路板120从第一壳体110上完全拆下进行维修,而不需要损坏第一壳体110以及不破坏第一电路板120,提高了第一电路板120维修的便利性;另一方面,利用第一密封结构410进行密封,拆装效率高,且第一密封结构410具有一定的弹性及柔软度,即使第一表面301或第一壳体110沿第一方向X靠近第一表面301的表面不平整,也可起到较好的密封效果,适配性强。
在一种可能的实现方式中,控制模组10还包括第二密封结构420(如图3所示),第二密封结构420位于第二壳体210和第二表面302之间,用于密封第二壳体210与第二表面302。第二密封结构420为中空的环状,通过第二密封结构420实现第二收容空间201的密封,在一实施方式中,第二密封结构420可以为密封胶条。在一实施方式中,第二密封结构420位于第二表面302的边缘,以使第二表面302的大部分作为第二收容空间201的底部,提升散热效果。
在一实施方式中,第二密封结构420的形状、材质、大小等特征可与第一密封结构410相同或者不同。
在一实施方式中,第二壳体210和第二表面302以螺栓方式连接,通过拆装螺栓305(如图11所示),以实现第二壳体210和第二表面302的拆卸与连接,同时通过第二密封结构420进行密封,以实现第二壳体210和第二表面302之间密封且可拆卸连接,且可通过调整第二壳体210和第二表面302的压紧程度,使第二密封结构420与第二壳体210和第二表面302均过盈配合,达到更好的密封效果。在本实施方式中,第二密封结构420为密封胶条,密封胶条与第二表面302、第二壳体210均不固定连接,通过螺栓将第二壳体210和第二表面302锁紧,并将密封胶条压紧,挤压在第二壳体210和第二表面302之间,以实现第二壳体210和第二表面302的密封,也就是在通过螺栓将第二壳体210和第二表面302可拆卸连接,通过第二密封结构420将第二壳体210和第二表面302密封。当需要拆卸对第二电路板220维修时,可先拆卸螺栓,再将第二壳体210从冷板300上拿下,就可以对第二电路板220维修。
在一实施方式中,冷板300和第二壳体210之间采用标准安装接口,实现一块冷板300适配不同类型的第二壳体210。
在一实施方式中,第二壳体210和第二表面302也可通过卡扣等其他方式连接。在一实施方式中,第二密封结构420与第二壳体210固定连接,而后抵接至第二表面302,第二密封结构420的位置相对固定,可更稳定地实现密封作用。在一实施方式中,第二密封结构420也可与第二表面302固定连接,而后抵接至第二壳体210,第二密封结构420的位置相对固定,可更稳定地实现密封作用。
在一实施方式中,第二表面302上设有沿第一方向X朝向第一表面301凹陷的凹槽,第二密封结构420位于凹槽内,第二壳体210沿第一方向X靠近第二表面302的表面设有凸台,凸台挤压凹槽内的第二密封结构以实现第二壳体210与第二表面302的密封,第二密封结构420与凹槽、凸台均过盈配合。在一实施方式中,第二表面302上也可设有沿第一方向X朝向第二壳体210凸起的凸台,第二壳体210沿第一方向X靠近第二表面302的表面设有凹槽,第二密封结构420位于凹槽内,凸台挤压凹槽内的第二密封结构420以实现第二壳体210与第二表面302的密封。
若通过焊接或者点胶水的方式将第二壳体210和第二表面302密封,第二壳体210和第二表面302则为不可拆卸地连接,在第二电路板220发生故障时,需要破坏第二壳体210以将第二电路板220取出进行维修,在取出过程中,第二电路板220还容易被进一步损坏,同时,当第二表面302或第二壳体210沿第一方向X靠近第二表面302的表面不平整时,焊接 或者点胶的密封方式施工困难,容易出现密封不彻底的现象,不能适配各种场景。
而在本实施方式中,通过第二密封结构420的设置,一方面,第二密封结构420不与第二壳体210和第二表面302固定连接,或第二密封结构420仅与第二壳体210或第二表面302固定连接,可实现第二壳体210和第二表面302之间密封且可拆卸连接,第二电路板220发生故障时,能够将第二电路板220从第二壳体210上完全拆下进行维修,而不需要损坏第二壳体210以及不破坏第二电路板220,提高了第二电路板220维修的便利性;另一方面,利用第二密封结构420进行密封,拆装效率高,且第二密封结构420具有一定的弹性及柔软度,即使第二表面302或第二壳体210沿第一方向X靠近第二表面302的表面不平整,也可起到较好的密封效果,适配性强。
在一种可能的实现方式中,控制模组10还包括第一连接器130(如图3所示),第一连接器130穿设在第一壳体110上且第一连接器130的两端分别位于第一收容空间101内部和外界,第一连接器130的外围设有第三密封结构430,第三密封结构430连接至第一壳体110,用于实现第一收容空间101和外界的隔离。其中,第一连接器130用于实现第一电路板120与外界的信息交流,第一连接器130与第一收容空间101内部的第一电路板120电连接,且第一连接器130自第一收容空间101内部延伸至第一收容空间101外部,第一连接器130与第一壳体110之间通过第三密封结构430密封。
在一实施方式中,电子控制单元也包括连接器,即将第一电路板120、第一壳体110和第一连接器130的整体称为第一电子控制单元100。在一实施方式中,第一连接器130可以为CAN连接器、以太网连接器或摄像头连接器等。在一实施方式中,控制模组10可包括多个第一连接器130,多个第一连接器130可以为相同类型的连接器,也可以为不同类型的连接器,为了使控制模组10可适配各种情形,可预设较多数量或多种类型的第一连接器130,而后根据实际需要选取其中部分第一连接器130使用。在一实施方式中,第一连接器130也可为标准化连接器,可以通过增减第一连接器130数量来适配不同情境下对第一连接器130数量的要求。
在一实施方式中,第一壳体110包括第一围框111和位于第一围框111远离第一表面301的第一盖板112(如图3所示),第一围框111、第一盖板112和第一表面301围成第一收容空间101,第一连接器130设置在第一围框111上。
由于第一连接器130的外表面通常为不规则的形状,若第三密封结构430为密封胶条,第一连接器130直接通过密封胶条与第一壳体110密封连接,则密封胶条的形状需要贴合第一连接器130外表面的形状即密封胶条的形状也需为不规则的形状,这种实施方式虽可行,但会实施起来较为不便,因此,为了解决第一连接器130与第一壳体110的密封问题,本申请中提供了两种可实施方式:第一,第一连接器130通过点胶或者焊接的方式固定且密封在第一壳体110上(如图3所示),此时为了保证第一电路板120的维修便利性,将第一电路板120与第一连接器130设置成可拆卸连接,则同时保证了第一收容空间101的密封性和第一电路板120的拆装便携性;第二,在第一连接器130的外侧设置一个外表面更加规整的第一防护罩432(如图6所示),而后通过设置第一密封胶条431,实现第一连接器130和第一防护罩432整体与第一壳体110的密封,此时,第一连接器130与第一壳体110为可拆卸连接关系,若第一电路板120与第一连接器130为不可拆卸连接,则维修第一电路板120时可将第一电路板120与第一连接器130的整体一起拆下进行维修。
本申请中提供的第一连接器130与第一壳体110的密封连接方式,实施更为简单、可操作性更强,具体可参见下述说明。
请参阅图3,在一种可能的实现方式中,第一壳体110上设有与第一收容空间101连通的第一开孔(图中未示出),第三密封结构430为胶水,第一连接器130通过胶水固定在第一开孔中,且第一连接器130的一端延伸至第一收容空间101内并与第一电路板120可拆卸连接。在本实施方式中,第一开孔设置在第一围框111上,通过点胶水使第一连接器130与第一围框111固定连接,此时,将第一电路板120与第一连接器130设置成可拆卸连接,保证第一电路板120的维修便利性。
在一实施方式中,第一连接器130也可通过焊接等方式固定在第一壳体110上,或第一连接器130与第一壳体110一体成型。
在一种可能的实现方式中,控制模组10还包括第一连接板141和设置在第一连接板141上的第一电路板连接器142,第一连接板141与第一连接器130固定连接,第一电路板120与第一连接板141通过第一电路板连接器142可拆卸连接。第一连接板141通过焊接或者点胶的方式与第一连接器130固定连接,第一连接器130也可通过焊接或者点胶水的方式与第一连接板141固定连接,此时,第一连接器130与第一壳体110的连接方式可不作限制,第一连接器130与第一壳体110为可拆卸连接或者不可拆卸连接,均不影响第一电路板120的拆装。
在一实施方式中,第一连接板141可为普通的导电板块,第一连接板141不设置器件,或者第一连接板141上只有少量可靠性高的无源器件。在一实施方式中,第一电路板连接器142可以为BTB连接器(即board-to-board Connectors)。
在一种可能的实现方式中,第一电路板120位于第一电路板连接器142邻近第一表面301的一侧。在拆卸第一电路板120时,由于第一壳体110与冷板300通过第一密封结构410可拆卸连接,可直接将第一壳体110从冷板300上拆下,再将第一电路板120沿第一方向X远离第一盖板112的方向拔出,这种拆卸方式便捷且不会损坏第一电路板120。
请参阅图6,图6是本申请一实施方式提供的控制模组10的剖面图,在一种可能的实现方式中,第三密封结构430包括第一密封胶条431和第一防护罩432,第一壳体110上设有与第一收容空间101连通的第一开孔,第一连接器130穿设在第一开孔中,第一连接器130的一端延伸至第一收容空间101内并与第一电路板120固定,第一连接器130的另一端延伸至第一收容空间101外部,第一防护罩432罩设在第一连接器130远离第一电路板120的一端,且第一防护罩432与第一壳体110远离第一电路板120的表面之间通过第一密封胶条431密封。
其中,部分第一连接器130位于第一收容空间101内,另一部分第一连接器130位于第一防护罩432内,第一防护罩432通过第一密封胶条431与第一壳体110密封且可拆卸连接,通过设置第一密封胶条431和第一防护罩432,将第一收容空间101连同第一防护罩432内的空间均被密封起来,此时,第一连接器130与第一壳体110为接触设置,第一连接器130与第一壳体110并非为不可拆卸连接,第一连接器130可直接焊接在第一电路板120上,拆卸时,可直接将第一壳体110从冷板300上拆下后,将第一防护罩432拆下,再将第一电路板120和第一连接器130一起从第一壳体110拆下。
在一实施方式中,第一密封胶条431可预先固定在第一壳体110上,第一防护罩432抵接至第一密封胶条431以实现密封,此时第一密封胶条431可全部位于第一围框111上,也可部分位于第一围框111上,部分位于第一盖板112上。在一实施方式中,第一密封胶条431预先固定在第一防护罩432上,第一密封胶条431抵接至第一壳体110上以实现密封。在一实施方式中,第一连接器130远离第一电路板120的一端设有线缆,第一防护罩432远离第 一电路板120的一侧相对设置开口以容纳线缆穿过,线缆与开口可通过点胶方式密封固定。
请参阅图8和图9,在一种可能的实现方式中,第一壳体110包括第一围框111和位于第一围框111远离第一表面301的第一盖板112,第一围框111、第一盖板112和第一表面301围成第一收容空间101;第一围框111和第一盖板112之间还设有第五密封结构450,第五密封结构450位于第一围框111和第一盖板112之间,并分别与第一围框111和第一盖板112可拆卸连接,第五密封结构450用于密封第一围框111和第一盖板112。第一围框111与第一表面301密封且可拆卸连接第一盖板112位于第一围框111沿第一方向X远离第一表面301的一侧,在本实施方式中,第一盖板112与第一表面301平行或者近似平行。通过设置第五密封结构450,使第一电路板120的维修更加便利。
在一实施方式中,控制模组10还包括第一连接板141和设置在第一连接板141上的第一电路板连接器142,第一连接板141与第一连接器130固定连接,第一电路板120与第一连接板141通过第一电路板连接器142可拆卸连接,第一电路板120位于第一电路板连接器142远离第一表面301的一侧。在拆卸第一电路板120时,直接将第一盖板112取下,再将第一电路板120沿第一方向X远离冷板300的方向拔出,这种拆卸方式便捷、不会损坏第一电路板120,且不需要将第一壳体110从冷板300上拆下。
在一种可能的实现方式中,控制模组10还包括第二连接器230(如图3所示),第二连接器230穿设在第二壳体210上且第二连接器230的两端分别位于第二收容空间201内部和外界,第二连接器230的外围设有第四密封结构440,第四密封结构440连接至第二壳体210,用于实现第二收容空间201和外界的隔离。其中,第二连接器230用于实现第二电路板220与外界的信息交流,第二连接器230与第二收容空间201内部的第二电路板220电连接,且第二连接器230自第二收容空间201内部延伸至第二收容空间201外部,第二连接器230与第二壳体210之间通过第四密封结构440密封。
在一实施方式中,电子控制单元也包括连接器,即将第二电路板220、第二壳体210和第二连接器230的整体称为第一电子控制单元100。在一实施方式中,第二连接器230可以为CAN连接器、以太网连接器或摄像头连接器等。在一实施方式中,控制模组10可包括多个第二连接器230,多个第二连接器230可以为相同类型的连接器,也可以为不同类型的连接器,为了使控制模组10可适配各种情形,可预设较多数量或多种类型的第二连接器230,而后根据实际需要选取其中部分第二连接器230使用。在一实施方式中,第二连接器230也可为标准化连接器,可以通过增减第二连接器230数量来适配不同情境下对第二连接器230数量的要求。
在一实施方式中,第二壳体210包括第二围框211和位于第二围框211远离第一表面301的第二盖板212(如图3所示),第二围框211、第二盖板212和第一表面301围成第二收容空间201,第二连接器230设置在第二围框211上。
由于第二连接器230的外表面通常为不规则的形状,若第四密封结构440为密封胶条,第二连接器230直接通过密封胶条与第二壳体210密封连接,则密封胶条的形状需要贴合第二连接器230外表面的形状即密封胶条的形状也需为不规则的形状,这种实施方式虽可行,但会实施起来较为不便,因此,为了解决第二连接器230与第二壳体210的密封问题,本申请中提供了两种可实施方式:第一,第二连接器230通过点胶或者焊接的方式固定且密封在第二壳体210上(如图3所示),此时为了保证第二电路板220的维修便利性,将第二电路板220与第二连接器230设置成可拆卸连接,则同时保证了第二收容空间201的密封性和第二电路板220的拆装便携性;第二,在第二连接器230的外侧设置一个外表面更加规整的第二 防护罩442(如图6所示),而后通过设置第二密封胶条441,实现第二连接器230和第二防护罩442整体与第二壳体210的密封,此时,第二连接器230与第二壳体210为可拆卸连接关系,若第二电路板220与第二连接器230为不可拆卸连接,则维修第二电路板220时可将第二电路板220与第二连接器230的整体一起拆下进行维修。
本申请中提供的第二连接器230与第二壳体210的密封连接方式,实施更为简单、可操作性更强,具体可参见下述说明。
在一种可能的实现方式中,第二壳体210上设有与第二收容空间201连通的第二开孔,第四密封结构440为胶水,第二连接器230通过点胶固定在第二开孔中,且第二连接器230的一端延伸至第二收容空间201内并与第二电路板220可拆卸连接。在本实施方式中,第二开孔设置在第二围框211上,通过点胶水使第二连接器230与第二围框211固定连接,此时,将第二电路板220与第二连接器230设置成可拆卸连接,保证第二电路板220的维修便利性。
在一实施方式中,第二连接器230也可通过焊接等方式固定在第二壳体210上,或第二连接器230与第二壳体210一体成型。
在一种可能的实现方式中,控制模组10还包括第二连接板241和设置在第二连接板241上的第二电路板连接器242(如图3所示),第二连接板241与第二连接器230固定连接,第二电路板220与第二连接板241通过第二电路板连接器242可拆卸连接。第二连接板241通过焊接或者点胶的方式与第二连接器230固定连接,第二连接器230也可通过焊接或者点胶水的方式与第二连接板241固定连接,此时,第二连接器230与第二壳体210的连接方式可不作限制,第二连接器230与第二壳体210为可拆卸连接或者不可拆卸连接,均不影响第二电路板220的拆装。
在一实施方式中,第二连接板241可为普通的导电板块,第二连接板241不设置器件,或者第二连接板241上只有少量可靠性高的无源器件。在一实施方式中,第二电路板连接器242可以为BTB连接器(即board-to-board Connectors)。
在一种可能的实现方式中,第二电路板220位于第二电路板连接器242邻近第二表面302的一侧。在拆卸第二电路板220时,由于第二壳体210与冷板300通过第二密封结构420可拆卸连接,可直接将第二壳体210从冷板300上拆下,再将第二电路板220沿第一方向X远离第二盖板212的方向拔出,这种拆卸方式便捷且不会损坏第二电路板220。在一种可能的实现方式中,第四密封结构440包括第二密封胶条441和第二防护罩442(如图6所示),第二壳体210上设有与第二收容空间201连通的第二开孔,第二连接器230穿设在第二开孔中,第二连接器230的一端延伸至第二收容空间201内并与第二电路板220固定,第二连接器230的另一端延伸至第二收容空间201外部,第二防护罩442罩设在第二连接器230远离第二电路板220的一端,且第二防护罩442与第二壳体210远离第二电路板220的表面之间通过第二密封胶条441密封。
其中,部分第二连接器230位于第二收容空间201内,另一部分第二连接器230位于第二防护罩442内,第二防护罩442通过第二密封胶条441与第二壳体210密封且可拆卸连接,通过设置第二密封胶条441和第二防护罩442,将第二收容空间201连同第二防护罩442内的空间均被密封起来,此时,第二连接器230与第二壳体210为接触设置,第二连接器230与第二壳体210并非为不可拆卸连接,第二连接器230可直接焊接在第二电路板220上,拆卸时,可直接将第二壳体210从冷板300上拆下后,将第二防护罩442拆下,再将第二电路板220和第二连接器230一起从第二壳体210拆下。
在一实施方式中,第二密封胶条441可预先固定在第二壳体210上,第二防护罩442抵 接至第二密封胶条441以实现密封,此时第二密封胶条441可全部位于第一围框111上,也可部分位于第一围框111上,部分位于第一盖板112上。在一实施方式中,第二密封胶条441预先固定在第二防护罩442上,第二密封胶条441抵接至第二壳体210上以实现密封。在一实施方式中,第二连接器230远离第二电路板220的一端设有线缆,第二防护罩442远离第二电路板220的一侧相对设置开口以容纳线缆穿过,线缆与开口可通过点胶方式密封固定。
在一种可能的实现方式中,第一电子控制单元100和第二电子控制单元200与冷板300的密封固定方式不同(如图7所示),例如,在第一电子控制单元100中,第一电路板120与第一连接板141通过第一电路板连接器142可拆卸连接,第一连接器130通过点胶或者焊接与第一壳体110密封且固定连接;在第二电子控制单元200中,第二连接器230通过焊接与第二电路板220固定连接,第四密封结构440包括第二密封胶条441和第二防护罩442,第二防护罩442与第二壳体210通过第二密封胶条441密封,以使第二收容空间201连同第二防护罩442内的空间均被密封起来。
在一种可能的实现方式中,第二壳体210包括第二围框211和位于第二围框211远离第二表面302的第二盖板212,第二围框211、第二盖板212和第二表面302围成第二收容空间201;第二围框211和第二盖板212之间还设有第六密封结构460,第六密封结构460位于第二围框211和第二盖板212之间,并分别与第二围框211和第二盖板212可拆卸连接,第六密封结构460用于密封第二围框211和第二盖板212。第二围框211与第二表面302密封且可拆卸连接第二盖板212位于第二围框211沿第一方向X远离第二表面302的一侧,在本实施方式中,第二盖板212与第二表面302平行或者近似平行。通过第六密封结构460的设置,使第二电路板220的维修更加便利。
在一实施方式中,控制模组10还包括第二连接板241和设置在第二连接板241上的第二电路板连接器242,第二连接板241与第二连接器230固定连接,第二电路板220与第二连接板241通过第二电路板连接器242可拆卸连接,第二电路板220位于第二电路板连接器242远离第二表面302的一侧。在拆卸第二电路板220时,直接将第二盖板212取下,再将第二电路板220沿第一方向X远离冷板300的方向拔出,这种拆卸方式便捷、不会损坏第二电路板220,且不需要将第一壳体110从冷板300上拆下。
需要说明书的是,图8中第一壳体110和第二壳体210的结构也可适用于图6所示的实施例中。
请参阅图10,图10是本申请一实施方式提供的散热系统1的示意图,本申请一实施方式提供一种散热系统1,散热系统1包括散热组件和如上任一项的控制模组10,散热组件用于对冷板300散热,以使冷板300冷却第一电路板120和第二电路板220。在本实施方式中,冷板300采用液冷方式散热,其中散热组件包括冷却管路500、泵600,冷却管路500中具有冷却液,冷板300与冷却管路500连通,泵600用于驱动冷却液在冷却管路500和冷板300内流动,以使冷板300冷却第一电路板120和第二电路板220。冷却液在循环的过程中,能够将冷板300的热量带走,从而降低冷板300的温度,泵600为冷却液的循环提供动力,在一实施方式中,散热系统1还包括冷却器700,冷板300还设有进液口和出液口(图中未示出),在泵600的作用下,冷却液在冷却器700和冷板300之间循环,将冷板300的热量转移至冷却器700,冷却器700将流入的较高温度的冷却液转变为较低温度的冷却液并将其排出,较低温度的冷却液通过进液口进入冷板300内用于冷却第一电路板120和第二电路板220,冷板300内较高温度的冷却液通过出液口流出至冷却器700上进行冷却以继续参与循环。
在其他实施方式中,冷板300采用风冷散热时,散热组件包括风扇,通过风扇驱动冷板 300内部气流与外部环境冷空气热交换,以冷却冷板300,再通过冷板300冷却第一电路板120和第二电路板220。
在一实施方式中,散热系统可包括一个或者多个控制模组10。
请继续参阅图1,本申请一实施方式提供一种车辆,车辆包括车架和如上所述的散热系统,散热系统安装于车架上。
车辆指以动力装置驱动或者牵引,供上道路行驶的人员乘用或者用于运送物品以及进行工程专项作业的轮式车辆。车辆包括两轮、三轮或者四轮的车辆,车辆也包括各种具有特定功能的专项作业车,例如工程抢险车、洒水车、吸污车、水泥搅拌车、起重车、医疗车等,车辆可以是电动汽车,也能够为燃油汽车,电动汽车可以为但不仅限于为纯电动车辆(Pure Electric Vehicle/Battery Electric Vehicle,PEV/BEV)、混合动力车辆(Hybrid Electric Vehicle,HEV)、增程式电动车辆(Range Extended Electric Vehicle,REEV)、插电式混合动力车辆(Plug-in Hybrid Electric Vehicle,PHEV)、新能源车辆(New Energy Vehicle),本申请对此并不限定。
车架作为车辆的结构骨架,用于支撑、固定和连接车辆的散热系统,承受车辆系统内部和来自外部环境的载荷。车辆在运行过程中,车辆中的电子控制单元设备会发热,散热系统能够使电子控制单元等电子设备得到良好的散热,确保电子控制单元能够稳定且高性能地工作。应当理解,车辆内可包括一个或者多个散热系统,散热系统的应用可不局限于车辆,其而还可应用至其他机械设备中。
以上对本申请实施例所提供的控制模组、散热系统及电子设备进行了详细介绍,本文中应用了具体个例对本申请的原理及实施例进行了阐述,以上实施例的说明只是用于帮助理解本申请的方法及其核心思想;同时,对于本领域的一般技术人员,依据本申请的思想,在具体实施例及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本申请的限制。
Claims (10)
- 一种控制模组,其特征在于,所述控制模组包括:冷板,包括沿厚度方向排布的第一表面和第二表面;第一壳体,位于所述第一表面同侧,且与所述第一表面围设构成第一收容空间,所述第一壳体与所述冷板之间密封且可拆卸连接;第一电路板,位于所述第一收容空间内且与所述第一壳体可拆卸连接,所述第一电路板朝向所述第一表面的一侧设有第一芯片,所述第一芯片与所述第一表面之间具有第一导热结构,所述冷板通过所述第一导热结构为所述第一芯片散热;第二壳体,位于所述第二表面同侧,且与所述第二表面围设构成第二收容空间,所述第二壳体与所述冷板之间密封且可拆卸连接;第二电路板,位于所述第二收容空间内且与所述第二壳体可拆卸连接,所述第二电路板朝向所述第二表面的一侧设有第二芯片,所述第二芯片与所述第二表面之间具有第二导热结构,所述冷板通过所述第二导热结构为所述第二芯片散热。
- 根据权利要求1所述的控制模组,其特征在于,所述控制模组还包括第一密封结构,所述第一密封结构位于所述第一壳体和所述第一表面之间,用于密封所述第一壳体与所述第一表面;和/或所述控制模组还包括第二密封结构,所述第二密封结构位于所述第二壳体和所述第二表面之间,用于密封所述第二壳体与所述第二表面。
- 根据权利要求1所述的控制模组,其特征在于,所述控制模组还包括第一连接器,所述第一连接器穿设在所述第一壳体上且所述第一连接器的两端分别位于所述第一收容空间内部和外界,所述第一连接器的外围设有第三密封结构,所述第三密封结构连接至所述第一壳体,用于实现所述第一收容空间和外界的隔离。
- 根据权利要求3所述的控制模组,其特征在于,所述第一壳体上设有与所述第一收容空间连通的第一开孔,所述第三密封结构为胶水,所述第一连接器通过所述胶水固定在所述第一开孔中,且所述第一连接器的一端延伸至所述第一收容空间内并与所述第一电路板可拆卸连接。
- 根据权利要求4所述的控制模组,其特征在于,所述控制模组还包括第一连接板和设置在所述第一连接板上的第一电路板连接器,所述第一连接板与所述第一连接器固定连接,所述第一电路板与所述第一连接板通过所述第一电路板连接器可拆卸连接。
- 根据权利要求5所述的控制模组,其特征在于,所述第一电路板位于所述第一电路板连接器邻近所述第一表面的一侧。
- 根据权利要求3所述的控制模组,其特征在于,所述第三密封结构包括第一密封胶条和第一防护罩,所述第一壳体上设有与所述第一收容空间连通的第一开孔,所述第一连接器穿设在所述第一开孔中,所述第一连接器的一端延伸至所述第一收容空间内并与所述第一电路板固定,所述第一连接器的另一端延伸至所述第一收容空间外部,所述第一防护罩罩设在 所述第一连接器远离所述第一电路板的一端,且所述第一防护罩与所述第一壳体远离所述第一电路板的表面之间通过所述第一密封胶条密封。
- 根据权利要求1-7任一项所述的控制模组,其特征在于,所述第一壳体包括第一围框和位于所述第一围框远离所述第一表面的第一盖板,所述第一围框、所述第一盖板和所述第一表面围成所述第一收容空间;所述第一围框和所述第一盖板之间还设有第五密封结构,所述第五密封结构位于所述第一围框和所述第一盖板之间,并分别与所述第一围框和所述第一盖板可拆卸连接,所述第五密封结构用于密封所述第一围框和所述第一盖板。
- 一种散热系统,其特征在于,所述散热系统包括散热组件和如权利要求1-8任一项所述的控制模组,所述散热组件用于对所述冷板散热,以使所述冷板冷却所述第一电路板和所述第二电路板。
- 一种电子设备,其特征在于,所述电子设备包括设备本体和如权利要求9所述的散热系统,所述散热系统安装于所述设备本体上。
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EP3941172A1 (en) * | 2020-07-16 | 2022-01-19 | TE Connectivity Germany GmbH | Electronic component with cooling clearance, and assembly method |
US20220122751A1 (en) * | 2020-10-16 | 2022-04-21 | Hewlett Packard Enterprise Development Lp | Magnetic blocks for thermally coupling cooling component and heat spreader |
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CN102169876A (zh) * | 2010-02-25 | 2011-08-31 | 三菱电机株式会社 | 树脂密封型电子控制装置及其制造方法 |
CN108109976A (zh) * | 2016-11-25 | 2018-06-01 | 恩佐科技股份有限公司 | 具塑胶框体的轻量化液冷板组及散热系统 |
EP3941172A1 (en) * | 2020-07-16 | 2022-01-19 | TE Connectivity Germany GmbH | Electronic component with cooling clearance, and assembly method |
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