CN219068300U - Noise-reduction heat dissipation device for vehicle-mounted gateway product - Google Patents
Noise-reduction heat dissipation device for vehicle-mounted gateway product Download PDFInfo
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- CN219068300U CN219068300U CN202223405827.XU CN202223405827U CN219068300U CN 219068300 U CN219068300 U CN 219068300U CN 202223405827 U CN202223405827 U CN 202223405827U CN 219068300 U CN219068300 U CN 219068300U
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Abstract
The utility model discloses a noise-reducing and heat-dissipating device for a vehicle-mounted gateway product, which comprises a cuboid shell and a radiator connected to a vehicle-mounted gateway PCB, wherein the front surface of the shell is a detachable front panel, a detachable cover plate is arranged on the front panel, an external power supply and a data interface matched with the vehicle-mounted gateway PCB are arranged on the front panel, the vehicle-mounted gateway PCB is fixed in the shell, the interface of the vehicle-mounted gateway PCB penetrates out of the corresponding external power supply and data interface, the radiator is also connected to the vehicle-mounted gateway PCB, and a heat-conducting pad is adhered below the cover plate and is contacted with the heat-conducting pad. The heat is conducted onto the heat conducting pad through the radiator, and then is conducted to the cover plate through the heat conducting pad, so that the whole heat dissipation of the shell is finally realized through the cover plate, the working noise of the gateway system is reduced, meanwhile, the outside of the whole shell does not need to be provided with a wind opening structure because of no need of cooling by a fan, and the whole shell is kept sealed, so that the gateway system is more suitable for working in a working environment with big dust.
Description
Technical Field
The utility model belongs to the field of railway locomotive video dump, and particularly relates to a noise reduction and heat dissipation device for a vehicle-mounted gateway product.
Background
The conventional working noise of the vehicle-mounted gateway product for railway locomotive and subway video dump is 40-60dB (A), the working noise of the vehicle-mounted equipment is required to be controlled below 45dB (A) according to the latest requirements of subway companies, the single fan noise is 40-45dB (A) in consideration of the fact that the vehicle-mounted equipment mostly adopts fan refrigeration, the vehicle-mounted gateway product generally adopts group cooling fans for cooling, the working noise is difficult to be controlled below 45dB (A), and the cooling fan is reduced to bring higher requirements for the cooling function of the whole equipment system. Therefore, the traditional air cooling heat dissipation mode of the gateway product can not meet the requirements of the field installation environment of equipment.
The cooling of traditional on-vehicle gateway product adopts the cooling of fan refrigeration mode to dispel the heat, and core heating element adopts the radiator to dispel the heat that directly gives off the radiator through the fan and directly takes away, and though simple structure, the shortcoming is that radiator fan wind noise is big, has strict requirement occasion inapplicable to the ambient noise, and radiator fan all has life, if use the occasion that ambient dust or sand wind are big, radiator fan is fragile.
Noise reduction is realized by adopting a mute cooling fan, so that the noise reduction type cooling fan is rarely applied to the market, most of the noise reduction type cooling fan needs to be customized, the cost is high, and the noise reduction effect is not very good. In order to reduce the number of heat dissipation fans, when the conventional design method is PCB design, low-power heating components are considered, so that the cost of the gateway product is increased greatly, even by several times, and the cost is high.
Disclosure of Invention
The utility model aims to provide a noise-reducing and heat-dissipating device for a vehicle-mounted gateway product, which has low noise, few faults and few dust.
The utility model aims at realizing the technical means that the noise-reducing and heat-dissipating device for the vehicle-mounted gateway product comprises a cuboid shell and a radiator connected to a vehicle-mounted gateway PCB, wherein the front surface of the shell is a detachable front panel, the upper surface of the shell is a detachable cover plate, an external power supply and a data interface matched with the vehicle-mounted gateway PCB are arranged on the front panel, the vehicle-mounted gateway PCB is fixed in the shell, the interface of the vehicle-mounted gateway PCB penetrates out from the corresponding external power supply and data interface, the radiator is further connected to the vehicle-mounted gateway PCB, a heat conduction pad is adhered below the cover plate, and the radiator is in contact with the heat conduction pad.
The vehicle-mounted gateway PCB comprises a plurality of vehicle-mounted gateway PCB boards, a back board PCB board is arranged between a front panel and the rear of a shell, a plurality of separation guide grooves are arranged between the back board PCB board and the front panel, the separation guide grooves are connected to the lower panel of the shell, the back board PCB board is connected to the rear end of the separation guide grooves, the front panel and the back board PCB board are divided into a plurality of PCB cabins by the separation guide grooves, the front face of the back board PCB board of each PCB cabin is provided with a PCB power interface and a PCB signal interface, and the vehicle-mounted gateway PCB board in each PCB cabin is connected with the back board PCB board through the PCB power interface and the PCB signal interface.
The utility model discloses a vehicle gateway PCB board, including a plurality of radiator, including the vehicle gateway PCB board, the radiator is a plurality of, is power radiator and non-power radiator respectively, and power radiator fixes at vehicle gateway PCB board upper surface, and non-power radiator limit portion is equipped with decurrent spliced pole, and the spliced pole other end is connected at vehicle gateway PCB board upper surface, and non-power radiator surface still processes down bellied heat conduction portion, and heat conduction portion contacts with the bellied portion that generates heat on the vehicle gateway PCB board.
The outer side of the shell is also connected with a hanging lug.
And heat conduction silicone grease is further coated between the power radiator and the vehicle-mounted gateway PCB.
And heat conduction silicone grease is further coated between the heat conduction part and the raised heating part on the vehicle-mounted gateway PCB.
The left side face, the right side face and the lower part of the separation guide groove of the shell are respectively provided with a guide groove matched with the vehicle-mounted gateway PCB.
The vehicle-mounted gateway PCB board upper surface still is connected with power module, is connected with power radiator on the power module, still scribbles heat conduction silicone grease between power radiator and the power module.
The utility model has the beneficial effects that: the heat is conducted onto the heat conducting pad through the radiator, the heat conducting pad is conducted to the cover plate, the whole heat dissipation of the casing is finally realized through the cover plate, the working noise of the gateway system is reduced, meanwhile, the fan is not required to cool, the wind structure is not required to be opened on the outer side of the whole casing, the whole casing is kept sealed, the effect of the working environment with big dust is better, and the fault points and the fault times of the gateway work caused by the damage of the fan are avoided.
Drawings
Fig. 1 is a schematic diagram of a noise reduction and heat dissipation device of a vehicle-mounted gateway product;
FIG. 2 is a schematic view of the cross-sectional structure A-A in FIG. 1;
FIG. 3 is a schematic view of the cross-sectional structure B-B in FIG. 1;
FIG. 4 is an enlarged schematic view of the structure at C in FIG. 3;
FIG. 5 is a schematic view of a guide slot structure;
the machine shell is shown in the figure 1; 2 a radiator; 2-1 a power radiator; 2-2 a non-power radiator; 3 a front panel; 4, a cover plate; 5 a heat conduction pad; 6 a backboard PCB board; 7, separating guide grooves; 8PCB power interface; a 9PCB signal interface; 10 connecting columns; 11 guide grooves; 12 hangers; 13 a power supply PCB board; 14, a main control PCB board; 15 Ethernet PCB board; 16USB-PCB board.
The present utility model will be described in further detail with reference to the accompanying drawings and examples.
Detailed Description
[ example 1 ]
The utility model provides a vehicle-mounted gateway product heat abstractor that makes an uproar falls, the casing 1 of cuboid and the radiator 2 of connection on vehicle-mounted gateway PCB board that include, casing 1 openly is detachable front panel 3, is detachable apron 4 above, and it has external power source and data interface with vehicle-mounted gateway PCB board assorted to open on the front panel 3, and vehicle-mounted gateway PCB board is fixed in casing 1, and vehicle-mounted gateway PCB board's interface wears out from corresponding external power source and data interface, still is connected with radiator 2 on the vehicle-mounted gateway PCB board, and the apron 4 below is pasted and is had heat pad 5, and radiator 2 contacts with heat pad 5.
The vehicle-mounted gateway PCB board has a plurality of blocks, a back board PCB board 6 is arranged between the front panel 3 and the rear face of the machine shell 1, a plurality of separation guide grooves 7 are arranged between the back board PCB board 6 and the front panel 3, the separation guide grooves 7 are connected to the lower panel of the machine shell 1, the back board PCB board 6 is connected to the rear end of the separation guide grooves 7, the front panel 3 and the back board PCB board 6 are divided into a plurality of PCB cabins by the separation guide grooves 7, a PCB power interface 8 and a PCB signal interface 9 are arranged on the front face of the back board PCB board 6 of each PCB cabin, and the vehicle-mounted gateway PCB board in each PCB cabin is connected with the back board PCB board 6 through the PCB power interface 8 and the PCB signal interface 9.
As shown in fig. 1, the whole casing 1 has a hollow cuboid structure, the front panel 3 and the upper cover plate 4 are detachable structures, and the rest four sides are detachable structures, so that the casing is not detached during normal use.
The casing 1 is internally provided with a vehicle-mounted gateway PCB board, and an interface of the vehicle-mounted gateway PCB board connected with the outside penetrates out through an external power supply and data interface corresponding to the front panel 3 and then is connected with external equipment.
The vehicle-mounted gateway PCB is also connected with a radiator 2, a heat conduction pad 5 is adhered to the lower surface of the cover plate 4 above the radiator 2, the radiator 2 conducts heat of the vehicle-mounted gateway PCB to the heat conduction pad 5, the heat conduction pad 5 conducts heat to the cover plate 4, and cooling and heat dissipation are carried out through the whole cover plate 4.
When the number of the vehicle-mounted gateway PCB boards is multiple, as shown in fig. 1, the vehicle-mounted gateway PCB boards comprise a plurality of power PCB boards 13, a main control PCB board 14, an ethernet PCB board 15 and a USB-PCB board 16, and all PCBs are required to be electrically connected with each other for data interaction and power supply. A back-plate PCB 6 parallel to the front panel 3 is thus provided within the chassis 1,
a plurality of separation guide grooves 7 are further formed in the shell 1, the front panel 3 and the backboard PCB 6 are divided into a plurality of PCB cabins by the separation guide grooves 7, a vehicle-mounted gateway PCB is installed in each cabin, and each vehicle-mounted gateway PCB is electrically connected with the backboard PCB 6 through a PCB power interface 8 and a PCB signal interface 9 on the front side of the backboard PCB 6.
As shown in fig. 1, the front end of the power supply PCB 13 is connected with an external power supply, the rear end is connected with the back panel PCB 6, and supplies power to the back panel PCB 6, the back panel PCB 6 supplies power to the rest of the main control PCB 14, the ethernet PCB 15 and the USB-PCB 16, and the power supply PCB 13, the main control PCB 14, the ethernet PCB 15 and the USB-PCB 16 realize data transmission through the PCB signal interface 9 of the back panel PCB 6.
The separation guide groove 7 is fixed on the lower panel of the casing 1, the back panel PCB 6 is simultaneously connected with the rear ends of the separation guide grooves 7, and the front ends of the separation guide grooves 7 can be detachably connected with the front panel 3 or directly not connected with the front panel 3.
In actual use, not every PCB cabin is provided with a vehicle-mounted gateway PCB, for example, the power supply PCB 13 and the main control PCB 14 are only installed in the earlier stage part project, and then the Ethernet PCB 15, the USB-PCB 16 or other PCBs can be installed in the PCB cabin according to actual requirements.
The heat radiator 2 is a plurality of, is power radiator 2-1 and non-power radiator 2-2 respectively, and power radiator 2-1 is fixed at on-vehicle gateway PCB board upper surface, and non-power radiator 2-2 limit portion is equipped with decurrent spliced pole 10, and the spliced pole 10 other end is connected at on-vehicle gateway PCB board upper surface, and non-power radiator 2-2 surface still processes the heat conduction portion that has decurrent arch, and the heat conduction portion contacts with the bellied portion that generates heat on the on-vehicle gateway PCB board.
The upper surface of the vehicle-mounted gateway PCB board is also connected with a power module, the power module is connected with a power radiator 2-1, and heat conduction silicone grease is further coated between the power radiator 2-1 and the power module.
The power module is a heat dissipation metal block.
And heat conduction silicone grease is also coated between the power radiator 2-1 and the vehicle-mounted gateway PCB.
And heat conduction silicone grease is further coated between the heat conduction part and the raised heating part on the vehicle-mounted gateway PCB.
There are two ways of connecting the heat sink 2,
if a monolithic vehicle-mounted gateway PCB board (i.e. the power PCB board 13, the main control PCB board 14, the ethernet PCB board 15 and the USB-PCB board 16 in fig. 1 are integrated on a monolithic PCB board) is adopted, a plurality of power radiators 2-1 and non-power radiators 2-2 are connected on the PCB board, so as to cool each heating point of the PCB board.
When adopting polylith on-vehicle gateway PCB board:
as shown in fig. 1 and 2, the main heating structure on the PCB board of the power PCB board 13 is a power supply module or a power filter module on the PCB board, and the power radiator 2-1 is directly connected to the PCB to conduct heat or connected to a heat conducting metal block of the power supply module or the power filter module.
Heat conduction silicone grease is coated between the power radiator 2-1 and the heat conduction metal block to improve heat conduction capacity. A cover plate 4 above the power radiator 2-1 is connected with a heat conduction pad 5 which is matched with and contacted with the power radiator 2-1.
As shown in fig. 3 and 4, the main control PCB 14 cannot leave a large amount of space, and the heat-generating points are concentrated on the chips with different heights of the protrusions, the non-power radiator 2-2 is used for radiating heat, that is, the non-power radiator 2-2 is integrally suspended above the main control PCB 14, the non-power radiator 2-2 is supported by the connecting column 10 at the bottom of the non-power radiator 2-2 and is connected to the neutral position of the main control PCB 14, and because the main heat-generating component is the chip on the PCB, the bottom of the non-power radiator 2-2 above the chip protrudes downwards to form a heat-conducting part, the heat-conducting part contacts with the heat-generating chip, the heat-conducting part is of the same integrated structure as the non-power radiator 2-2, and the contact surface of the heat-conducting part and the chip is also coated with heat-conducting silicone. A heat conducting pad 5 matched with and contacted with the non-power radiator 2-2 is connected to the cover plate 4 above the non-power radiator 2-2.
The electronic components with no large heating value, such as the Ethernet PCB 15 and the USB-PCB 16, can dissipate heat through the PCB.
The outer side of the shell 1 is also connected with a hanging lug 12.
The lugs 12 are used to connect with other devices outside to secure the entire housing.
The left side face, the right side face and the lower part of the separation guide groove 7 of the shell 1 are respectively provided with a guide groove 11 matched with a vehicle-mounted gateway PCB.
As shown in fig. 5, two sides of the casing 1 and the separation guide groove 7 are provided with guide grooves 11 matched with the vehicle-mounted gateway PCB, and when the vehicle-mounted gateway PCB is mounted, the vehicle-mounted gateway PCB is pushed in from the guide grooves 11 on both sides, and the back plate PCB 6 on the rear side and the front plate 3 on the front side clamp the vehicle-mounted gateway PCB through the guide grooves 11 on the left side and the right side.
The self-heat-dissipation structure of the radiator 2, the heat-conduction pad 5 and the cover plate 4 is used for realizing cooling, and compared with the heat dissipation of a fan, the working noise of a gateway system is obviously reduced; meanwhile, as a fan is not needed, and a ventilation structure is not needed, the whole machine shell 1 is kept sealed, dust is prevented from entering the machine shell, the work of a gateway system is influenced, and the environment adaptability to the large dust is better. Meanwhile, the working fault point and the fault times of the gateway caused by unfavorable heat dissipation of the fan are avoided.
Claims (8)
1. The utility model provides a heat abstractor falls in on-vehicle gateway product which characterized in that: the device comprises a cuboid casing (1) and a radiator (2) connected to a vehicle-mounted gateway PCB, wherein the front surface of the casing (1) is a detachable front panel (3), a detachable cover plate (4) is arranged on the casing, an external power supply and a data interface matched with the vehicle-mounted gateway PCB are arranged on the front panel (3), the vehicle-mounted gateway PCB is fixed in the casing (1), the interface of the vehicle-mounted gateway PCB penetrates out from the corresponding external power supply and data interface, the radiator (2) is further connected to the vehicle-mounted gateway PCB, a heat conducting pad (5) is adhered below the cover plate (4), and the radiator (2) is in contact with the heat conducting pad (5).
2. The noise reduction and heat dissipation device for an on-board gateway product according to claim 1, wherein: the vehicle-mounted gateway PCB board has a plurality of pieces, a back board PCB board (6) is arranged between the front panel (3) and the rear of the machine shell (1), a plurality of separation guide grooves (7) are arranged between the back board PCB board (6) and the front panel (3), the separation guide grooves (7) are connected to the lower panel of the machine shell (1), the back board PCB board (6) is connected to the rear end of the separation guide grooves (7), the front panel (3) and the back board PCB board (6) are divided into a plurality of PCB cabins by the separation guide grooves (7), a PCB power interface (8) and a PCB signal interface (9) are arranged on the front of the back board PCB board (6) of each PCB cabin, and the vehicle-mounted gateway PCB board in each PCB cabin is connected with the back board PCB board (6) through the PCB power interface (8) and the PCB signal interface (9).
3. The noise reduction and heat dissipation device for vehicle-mounted gateway products according to claim 1 or 2, wherein: the vehicle-mounted gateway PCB comprises a plurality of power radiators (2-1) and a plurality of non-power radiators (2-2), wherein the power radiators (2-1) are fixed on the upper surface of the vehicle-mounted gateway PCB, downward connecting columns (10) are arranged at the edges of the non-power radiators (2-2), the other ends of the connecting columns (10) are connected to the upper surface of the vehicle-mounted gateway PCB, downward protruding heat conducting parts are further processed on the surfaces of the non-power radiators (2-2), and the heat conducting parts are in contact with protruding heating parts on the vehicle-mounted gateway PCB.
4. The noise reduction and heat dissipation device for an on-board gateway product according to claim 1, wherein: the outer side of the shell (1) is also connected with a hanging lug (12).
5. A noise reduction and heat dissipation device for vehicle-mounted gateway products according to claim 3, wherein: and heat conduction silicone grease is also coated between the power radiator (2-1) and the vehicle-mounted gateway PCB.
6. A noise reduction and heat dissipation device for vehicle-mounted gateway products according to claim 3, wherein: and heat conduction silicone grease is further coated between the heat conduction part and the raised heating part on the vehicle-mounted gateway PCB.
7. The noise reduction and heat dissipation device for vehicle-mounted gateway products according to claim 2, wherein: the left side face, the right side face and the lower part of the separation guide groove (7) of the shell (1) are respectively provided with a guide groove (11) matched with the vehicle-mounted gateway PCB.
8. The noise reduction and heat dissipation device for an on-board gateway product according to claim 5, wherein: the vehicle-mounted gateway PCB board upper surface still is connected with power module, is connected with power radiator (2-1) on the power module, still scribbles heat conduction silicone grease between power radiator (2-1) and the power module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223405827.XU CN219068300U (en) | 2022-12-16 | 2022-12-16 | Noise-reduction heat dissipation device for vehicle-mounted gateway product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223405827.XU CN219068300U (en) | 2022-12-16 | 2022-12-16 | Noise-reduction heat dissipation device for vehicle-mounted gateway product |
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| Publication Number | Publication Date |
|---|---|
| CN219068300U true CN219068300U (en) | 2023-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223405827.XU Active CN219068300U (en) | 2022-12-16 | 2022-12-16 | Noise-reduction heat dissipation device for vehicle-mounted gateway product |
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| Country | Link |
|---|---|
| CN (1) | CN219068300U (en) |
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- 2022-12-16 CN CN202223405827.XU patent/CN219068300U/en active Active
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