CN220043830U - Vehicle-mounted comprehensive air-cooled case - Google Patents

Vehicle-mounted comprehensive air-cooled case Download PDF

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Publication number
CN220043830U
CN220043830U CN202320688729.7U CN202320688729U CN220043830U CN 220043830 U CN220043830 U CN 220043830U CN 202320688729 U CN202320688729 U CN 202320688729U CN 220043830 U CN220043830 U CN 220043830U
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China
Prior art keywords
chassis
vehicle
main frame
air
mounted integrated
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CN202320688729.7U
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Chinese (zh)
Inventor
刘冠宏
刘新博
李兵强
张之树
朱玉璞
尚世杰
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CETC 20 Research Institute
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CETC 20 Research Institute
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Abstract

The utility model provides a vehicle-mounted comprehensive air-cooled case, which comprises: the air conditioner comprises a main chassis frame, a front panel, a back panel, an air cooling assembly, a damper adapter plate and a damper, wherein a plurality of module mounting grooves are formed in the main chassis frame, the front panel is connected with the front end face of the main chassis frame, and the back panel is connected with the rear end face of the main chassis frame. The air cooling assembly comprises a plurality of fans and a guide plate, the air cooling assembly is arranged on the side end face of the main chassis frame, and the guide plate is used for guiding air flows of the fans into the main chassis frame. The shock absorber adapter plate comprises a block-shaped connecting part and a reinforcing part protruding out of the connecting part, the connecting part is connected with the bottom plate of the chassis main frame, and the shock absorber is connected with the bottom plate of the chassis main frame through the shock absorber adapter plate. The utility model adopts the forced air cooling case with the double-layer LRM plug structure, adopts reasonable air duct design on the premise of meeting the functions, ensures the heat dissipation capacity of the case, designs the damper adapter plate, selects proper dampers and ensures the mechanical property of the case.

Description

Vehicle-mounted comprehensive air-cooled case
Technical Field
The utility model relates to the technical field of vehicle-mounted equipment, in particular to a vehicle-mounted comprehensive air-cooled case.
Background
With the development of vehicle-mounted equipment towards integration and modularization, a vehicle-mounted integrated chassis is required to mount a large number of modules under limited mounting conditions, and meanwhile, the requirements of electrical interconnection performance, electromagnetic compatibility, heat dissipation and C3 spectrum vibration are met.
In the existing forced air cooling case scheme, the number of interpolation modules is small, the heat flux density in the case is small, and the requirement on heat dissipation capacity is relatively small. The interior of the air duct is mainly formed by milling radiating teeth on the structural member, and the radiating efficiency is general. The double-layer LRM chassis adopts an open air-cooled chassis scheme, and the sealing performance and electromagnetic shielding performance of the chassis cannot be ensured when the back plate is a bare printed board. In addition, the shock absorber mounting structural member is arranged on the outer side of the bottom of the cabinet, so that additional space is required to be occupied, and the adapter itself is also at risk of becoming a vibration weak point.
Disclosure of Invention
The utility model provides a vehicle-mounted comprehensive air-cooled chassis, which aims to solve the technical problem of improving the heat radiation performance and the structural stability of the vehicle-mounted comprehensive chassis.
According to the embodiment of the utility model, the vehicle-mounted comprehensive air-cooled case comprises:
the case main frame is internally provided with a plurality of module mounting grooves;
the front panel is connected with the front end face of the main frame of the case;
the backboard is connected with the rear end face of the main frame of the case;
the air cooling assembly comprises a plurality of fans and a guide plate, the air cooling assembly is arranged on the side end face of the chassis main frame, and the guide plate is used for guiding airflows of the fans into the chassis main frame;
the shock absorber adapter plate comprises a block-shaped connecting part and a reinforcing part protruding out of the connecting part, and the connecting part is connected with a bottom plate of the chassis main frame;
and the shock absorber is connected to the bottom plate of the chassis main frame through the shock absorber adapter plate.
According to some embodiments of the utility model, the vehicle-mounted integrated air-cooled chassis further comprises: and the connector panel is connected to the outer side of the backboard and used for supporting the external interconnection of the high-frequency connector, the low-frequency connector and the network port.
In some embodiments of the utility model, a plurality of the module mounting slots are provided in a double layer within the chassis main frame.
According to some embodiments of the utility model, an air duct is arranged in the main frame of the case, and the air flow of the fan is guided into the air duct by the guide plate.
In some embodiments of the utility model, corrugated plates are arranged in the air duct.
According to some embodiments of the utility model, the plug ends of a plurality of fans are all filter type connectors.
In some embodiments of the utility model, the reinforcement portion includes a square body portion and extensions extending from four corners of the body portion.
According to some embodiments of the utility model, the main frame of the chassis is made of an aluminum alloy material with a thickness not less than 3 mm.
In some embodiments of the present utility model, a shielding strip is disposed at an assembly gap of the vehicle-mounted integrated air-cooled chassis.
According to some embodiments of the utility model, the chassis main frame is provided with a plurality of weight-reducing grooves.
The utility model has the following beneficial effects:
the utility model relates to a forced air cooling case with a double-layer LRM plug-in structure. On the premise of meeting the functions, reasonable air duct design is adopted, the heat dissipation capacity of the chassis is guaranteed, the damper adapter plate is designed, the proper damper is selected, the mechanical properties of the chassis are guaranteed, and the electromagnetic compatibility of the chassis is guaranteed by customizing the proper filter connector, selecting the reasonable shielding strips and the like.
Drawings
FIG. 1 is a schematic structural diagram of a vehicle-mounted integrated air-cooled chassis according to an embodiment of the present utility model;
FIG. 2 is an exploded view of a vehicle-mounted integrated air-cooled chassis according to an embodiment of the present utility model;
FIG. 3 is a schematic structural view of an air cooling assembly according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram of a partial structure of a vehicle-mounted integrated air-cooled chassis according to an embodiment of the present utility model;
FIG. 5 is a schematic view of a structure of a damper adapter plate according to an embodiment of the present utility model at a first viewing angle;
fig. 6 is a schematic structural view of a damper adapter plate according to an embodiment of the present utility model at a second viewing angle.
Reference numerals:
the housing 100 is configured to be coupled to a plurality of devices,
the main chassis frame 10, the module mounting groove 110, the air duct 120,
the front panel 20, the back panel 30,
air cooling assembly 40, fan 410, baffle 420, damper adapter 50, connection portion 510, reinforcement portion 520, main body portion 521, extension portion 522, damper 60, and connector panel 70.
Detailed Description
In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description of the present utility model is given with reference to the accompanying drawings and preferred embodiments.
The steps of the method flow described in the specification and the flow chart shown in the drawings of the specification are not necessarily strictly executed according to step numbers, and the execution order of the steps of the method may be changed. Moreover, some steps may be omitted, multiple steps may be combined into one step to be performed, and/or one step may be decomposed into multiple steps to be performed.
The conventional vehicle-mounted equipment has small restrictions on weight and space, and the integration means small volume and large heat flux density, and the rack is required to provide a good heat dissipation path so as to ensure good heat dissipation efficiency. In addition, the requirements on vehicle-mounted vibration conditions such as combined wheel type vehicles are severe, and the combination makes the independent chassis which is designed to resist vibration independently and the combination rely on the mechanical design of the combination chassis.
Domestic electronic equipment heat design forced air cooling and liquid cooling are all comparatively commonly used, because liquid cold source cost is higher and need occupy great space, vehicle equipment adopts the radiating mode of forced air cooling generally.
From the overall design perspective, the integrated air-cooled chassis is designed to meet the requirements of equipment functions and environment, and the utility model provides a vehicle-mounted integrated air-cooled chassis 100.
As shown in fig. 1 and 2, a vehicle-mounted integrated air-cooling chassis 100 according to an embodiment of the present utility model includes: chassis main frame 10, front panel 20, back panel 30, air cooling assembly 40, damper adapter 50, and damper 60.
Wherein, a plurality of module mounting slots 110 are provided in the main chassis frame 10. For example, a module mounting slot 110 for plug-in mounting of a 6U module meeting twenty or more different thickness criteria may be provided.
The front panel 20 is connected to the front end surface of the main chassis frame 10, and the back panel 30 is connected to the rear end surface of the main chassis frame 10.
As shown in fig. 2-4, the air cooling assembly 40 includes a plurality of fans 410 and a baffle 420, where the air cooling assembly 40 is disposed on a side end surface of the chassis main frame 10, and the baffle 420 is used to guide airflows of the plurality of fans 410 into the chassis main frame 10.
As shown in fig. 5 and 6, the damper adapter 50 includes a block-shaped connection portion 510 and a reinforcement portion 520 protruding from the connection portion 510, the connection portion 510 is connected to the bottom plate of the chassis main frame 10, and the damper 60 is connected to the bottom plate of the chassis main frame 10 through the damper adapter 50.
It should be noted that, compared with the common "L" type adaptor, the design of the damper adaptor plate 50 saves the space occupied by installing the damper 60, and the connection stiffness is more reliable, and the mechanical performance is better.
According to the vehicle-mounted integrated air-cooled chassis 100 provided by the embodiment of the utility model, on the premise of meeting the functions, the heat dissipation capacity of the chassis 100 is ensured, the damper adapter plate 50 is designed, the proper damper 60 is selected, the space occupied by installing the damper 60 is saved, the connection rigidity is more reliable, and the mechanical property is better.
According to some embodiments of the utility model, the vehicle-mounted integrated air-cooled chassis 100 further includes: the connector panel 70 is connected to the outer side of the back plate 30, and is used for supporting the external interconnection of the high-frequency connector, the low-frequency connector and the network port, so as to meet the installation requirements of the high-frequency connector, the low-frequency connector and the network port.
In some embodiments of the utility model, the plurality of module mounting slots 110 are provided in a double layer arrangement within the main frame of the chassis 100. Thus, the integrated design of the vehicle-mounted integrated air-cooled chassis 100 is facilitated, and the vibration resistance of the equipment can be enhanced.
According to some embodiments of the present utility model, an air duct 120 is provided in the main chassis frame 10, and a baffle 420 directs the air flow of the fan 410 into the air duct 120. For example, the duct 120 of the chassis 100 may be designed with penetrating air, so that the heat dissipation effect of the vehicle-mounted integrated air-cooled chassis 100 may be improved. It should be noted that, the adoption of the double-layer LRM module structure can avoid the overlong air duct 120 and improve the space utilization of the device.
In some embodiments of the present utility model, corrugated sheets are provided within the air chute 120. Thus, the air cooling heat dissipation effect of the vehicle-mounted integrated air-cooled chassis 100 can be further improved.
According to some embodiments of the utility model, the plug ends of the plurality of fans 410 are each implemented with a filter plug. Thus, the vehicle-mounted integrated air-cooled chassis 100 can be made to satisfy an electromagnetic compatibility design.
In some embodiments of the present utility model, as shown in fig. 5 and 6, the reinforcement part 520 includes a square-shaped main body part 521 and extension parts 522 extending from four corners of the main body part 521.
According to some embodiments of the present utility model, the chassis main frame 10 is made of an aluminum alloy material with a thickness not less than 3 mm. Thus, the structural strength of the vehicle-mounted integrated air-cooled chassis 100 can be ensured. For example, the aviation aluminum alloy 6063 may be adopted, and the aviation aluminum alloy 6063 has good heat conductivity, corrosion resistance and cold workability, so that the chassis main frame 10 is ensured to have enough strength, rigidity, vibration impact resistance, severe environment resistance and good heat dissipation capability.
In some embodiments of the present utility model, shielding strips are disposed at the assembly slots of the vehicle-mounted integrated air-cooled chassis 100.
According to some embodiments of the present utility model, the chassis main frame 10 is provided with a plurality of weight-reducing grooves. Therefore, the overall weight of the vehicle-mounted integrated air-cooled chassis 100 is effectively reduced, and the requirement of light weight is met.
The vehicle-mounted integrated air-cooled chassis 100 of the present utility model is described in detail below in one particular embodiment with reference to the accompanying drawings. It is to be understood that the following description is exemplary only and is not to be taken as limiting the utility model in any way.
The chassis 100 of the present utility model uses penetrating air to dissipate heat, so as to avoid the overlong air duct 120, improve the space utilization rate of the equipment, and also to enhance the vibration resistance of the equipment, the chassis 100 uses a double-layer LRM structure.
As shown in fig. 1 to 3, the vehicle-mounted integrated air-cooling chassis 100 includes: chassis main frame 10, front panel 20, back panel 30, air cooling assembly 40, baffle 420, air duct 120, damper 60, damper adapter 50, and connector panel 70.
The chassis main frame 10 is formed by welding four sides and structural members of the middle-layer air duct 120, and the distribution and the precision of the guide rails are controlled to meet the plug-in installation of twenty or more LRM modules with different thickness standards. The main chassis frame 10 is a main bearing component of the vehicle-mounted integrated air-cooled chassis 100, and the structural performance of the main chassis frame is directly affected by the structural performance of the whole frame. Therefore, when the main frame is constructed, step-shaped welding seams are adopted for the connection among all parts of the main frame, so that the reliability of the connection is ensured, and the requirements of the use environment and various performance indexes are met. In order to reduce the weight of the chassis 100, a weight-reducing groove is designed at a non-main bearing point of the inner wall of the equipment, and weight and material are also reduced on the guide rail within the limit of not affecting heat dissipation.
The backplane 30 mainly ensures signal interconnection and external switching of each standard module.
The fan 410 installed in the air cooling assembly 40 enters the air duct 120 through the diversion of the guide plate 420, the use of the guide plate 420 can reduce wind resistance, flow distribution of the fan 410 is effectively carried out, the flow resistance curve of the whole air duct 120 system is improved, and then the heat dissipation performance is improved.
Corrugated plates are welded in gaps of the air duct 120, so that the heat dissipation area is increased, the heat exchange amount of the unit area of the air duct 120 is improved, and heat dissipation is effective.
Compared with the common L-shaped adapter piece, the design of the damper adapter plate 50 saves the space occupied by installing the damper 60, has more reliable connection rigidity and better mechanical property.
Shock absorber 60 ensures that the amplification of the mechanical response of chassis 100 is effectively reduced under C3 spectrum vibration conditions. The connector panel 70 supports the external interconnection of a plurality of high and low frequency connectors and ports. The arrangement of connectors on the face of the cable is designed according to the trend of the system harness and man-machine interaction.
The front panel 20 mainly ensures the whole shielding of the chassis 100 and is printed with the identification of the whole machine.
The chassis main frame 10 is made of 6063 aluminum alloy material with the thickness of more than 3mm, and if the influence of the hole seam is not considered, the shielding efficiency of the pure structural member can reach more than 100 dB.
Considering that the assembly part of the frame may have gaps, electromagnetic compatibility may be leaked. And shielding strips and the like are required to be additionally arranged, so that the overall conductive continuity of the rack is ensured, and the shielding effectiveness is improved.
In order to ensure the performance of the shielding material, parameters that may affect the performance of the material, such as the compressibility of the material, need to be considered. The communication rack is provided with holes at the joint of the front panel and the rear panel strictly according to the requirements of a shielding strip manual, so that the compression rate of the communication rack is ensured. And the roughness of the mounting surface of the shielding strip is ensured to be less than 1.6, and the tight mounting of the shielding strip is ensured.
The comprehensive frame selects the conductive particles with silicon rubber as a matrix as conductive shielding strips of silver/aluminum, and the national army standard GJB/Z158-2011 has requirements on shielding effectiveness and the like of electromagnetic shielding materials. The volume conductivity is required to be less than or equal to 0.01Ω & cm, and the shielding effectiveness is required to be more than or equal to 85dB at 10MHz and 1 GHz.
In the test of the sample, it was found that the fan 410 would have a ripple when powered up, which has a slight effect on the power supply circuitry of the device. This problem has been solved by improvements in power supply. To avoid such situations altogether, however, the plug terminal connectors of the blower 410 are replaced with custom filter connectors. The principle is to make a low pass filter on the pins of the connector. The high-frequency component generated by the ripple wave of the fan 410 can be effectively filtered, and the electromagnetic compatibility of the system is ensured.
In summary, the present utility model is configured as a forced air cooling chassis 100 with a dual-layer LRM plug-in structure. On the premise of meeting the functions, a reasonable design of the air duct 120 is adopted, the heat dissipation capacity of the chassis 100 is guaranteed, the damper adapter plate 50 is designed, the proper damper 60 is selected, the mechanical properties of the chassis 100 are guaranteed, and the electromagnetic compatibility of the chassis 100 is guaranteed by customizing a proper filter connector, selecting a reasonable shielding strip and the like.
While the utility model has been described in connection with specific embodiments thereof, it is to be understood that these drawings are included in the spirit and scope of the utility model, it is not to be limited thereto.

Claims (10)

1. The utility model provides a on-vehicle comprehensive forced air cooling machine case which characterized in that includes:
the case main frame is internally provided with a plurality of module mounting grooves;
the front panel is connected with the front end face of the main frame of the case;
the backboard is connected with the rear end face of the main frame of the case;
the air cooling assembly comprises a plurality of fans and a guide plate, the air cooling assembly is arranged on the side end face of the chassis main frame, and the guide plate is used for guiding airflows of the fans into the chassis main frame;
the shock absorber adapter plate comprises a block-shaped connecting part and a reinforcing part protruding out of the connecting part, and the connecting part is connected with a bottom plate of the chassis main frame;
and the shock absorber is connected to the bottom plate of the chassis main frame through the shock absorber adapter plate.
2. The vehicle-mounted integrated air-cooled chassis of claim 1, further comprising: and the connector panel is connected to the outer side of the backboard and used for supporting the external interconnection of the high-frequency connector, the low-frequency connector and the network port.
3. The vehicle-mounted integrated air-cooled chassis of claim 1, wherein a plurality of the module mounting slots are provided in a double-layer arrangement within the chassis main frame.
4. The vehicle-mounted integrated air-cooled chassis of claim 1, wherein an air duct is disposed in the chassis main frame, and the deflector directs the fan airflow into the air duct.
5. The vehicle-mounted integrated air-cooled chassis of claim 4, wherein corrugated plates are disposed in the air duct.
6. The vehicle-mounted integrated air-cooled chassis of claim 1, wherein the plug ends of the fans are all filter-type connectors.
7. The vehicle-mounted integrated air-cooled chassis of claim 1, wherein the reinforcement portion includes a square body portion and extensions extending from four apex angles of the body portion.
8. The vehicle-mounted integrated air-cooled chassis according to claim 1, wherein the chassis main frame is an aluminum alloy member with a thickness not less than 3 mm.
9. The vehicle-mounted integrated air-cooled chassis of claim 1, wherein a shielding strip is disposed at an assembly gap of the vehicle-mounted integrated air-cooled chassis.
10. The vehicle-mounted integrated air-cooled chassis of any of claims 1-9, wherein the chassis main frame is provided with a plurality of weight-reduction slots.
CN202320688729.7U 2023-03-31 2023-03-31 Vehicle-mounted comprehensive air-cooled case Active CN220043830U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320688729.7U CN220043830U (en) 2023-03-31 2023-03-31 Vehicle-mounted comprehensive air-cooled case

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320688729.7U CN220043830U (en) 2023-03-31 2023-03-31 Vehicle-mounted comprehensive air-cooled case

Publications (1)

Publication Number Publication Date
CN220043830U true CN220043830U (en) 2023-11-17

Family

ID=88743664

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320688729.7U Active CN220043830U (en) 2023-03-31 2023-03-31 Vehicle-mounted comprehensive air-cooled case

Country Status (1)

Country Link
CN (1) CN220043830U (en)

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