CN113891621A

CN113891621A - Utilize phase transition technique reinforcing heat transfer's quick maintenance ATR machine case

Info

Publication number: CN113891621A
Application number: CN202111137662.XA
Authority: CN
Inventors: 吴晗; 康壮; 葛新法
Original assignee: 715th Research Institute of CSIC
Current assignee: 715th Research Institute of CSIC
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-01-04

Abstract

The invention discloses a rapid maintenance ATR case for enhancing heat transfer by utilizing a phase change technology, which relates to the field of electronic equipment cases and comprises a case body and a mounting bracket, wherein the case body forms a closed case body structure by a front plate, two side plates, a rear plate, an upper cover plate and a bottom plate; a plurality of groups of guide grooves are uniformly distributed on the inner surface of the side plate and used for installing the functional module and the power supply module in a plug-in manner; a side panel is arranged on the outer surface of the side plate, and a heat dissipation cavity is formed between the side panel and the side plate and used for placing the double-layer fin radiator; one side of the case body close to the rear plate is provided with a ventilation cavity, and an axial flow fan fixed on the rear panel is arranged in the ventilation cavity. The invention uses the vapor chamber for enhancing heat transfer by the phase change technology to carry out enhanced heat dissipation on the ATR case, and simultaneously, the equipment meets various environmental adaptability requirements through lightweight design, noise reduction design, EMC design and vibration resistance design. On the other hand, by using the S7 connector with quick plugging capability, the maintenance and replacement efficiency of the product is greatly improved.

Description

Utilize phase transition technique reinforcing heat transfer's quick maintenance ATR machine case

Technical Field

The invention relates to the field of electronic equipment cabinets, in particular to an ATR cabinet capable of enhancing heat transfer by using a phase change technology and achieving rapid maintenance.

Background

An ATR chassis refers to a Line Replaceable (LRU) unit that conforms to the ARINC404 specification, and has functions of protecting internal devices, shielding electromagnetic radiation, and the like. The traditional ATR case is mainly cooled by natural cooling and forced air cooling, the heat power consumption of the case is greatly improved along with the improvement of the power of an equipment inner plate card, the traditional ATR case cannot meet the requirements of heat dissipation and low noise, and a certain bottleneck exists in the product heat design; on the other hand, the circular aviation electric connector is used as a main electrical interface mode, when the case is disassembled and maintained, the connectors need to be plugged one by one, and plugging space of the connectors is required, so that the product maintenance efficiency is not high.

The heat-transfer-enhanced vapor chamber based on the phase-change heat dissipation technology is provided for effectively solving the heat dissipation problem in the electronic equipment in the industry, compared with the traditional metal, the vapor chamber has the heat conductivity coefficient of more than 2000W/(m.K) which is 10 times that of the common aluminum plate, and the heat dissipation problem of a high-power-consumption module can be effectively solved.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides the ATR cabinet capable of being maintained quickly by enhancing heat transfer by using the phase change technology, which can realize efficient heat dissipation in a limited space, is designed in a light weight manner and improves the maintenance efficiency of the product.

The purpose of the invention is achieved by the following technical scheme: the quick-maintenance ATR case capable of enhancing heat transfer by utilizing the phase change technology comprises a case body and a mounting bracket, wherein the case body forms a closed case body structure through a front plate, two side plates, a rear plate, an upper cover plate and a bottom plate;

a plurality of groups of guide grooves are uniformly distributed at corresponding positions on the inner surface of each side plate, and a plurality of functional modules and at least one power supply module are installed on the guide grooves in a plug-in manner;

a side panel is arranged on the outer surface of each side plate, a groove is formed in the outer surface, a protrusion is arranged on the side panel at a position corresponding to the groove, the groove is used for being matched with the protrusion, so that a heat dissipation cavity is formed between the side panel and the side plate and used for placing a double-layer fin radiator; a plurality of radiating teeth A are uniformly arranged at one end of the side plate close to the front plate, and a plurality of radiating teeth B are uniformly arranged at the position of the side plate corresponding to the side plate; the double-layer finned radiator consists of a middle soaking plate and finned radiators fixed on the surfaces of the two sides of the middle soaking plate, the middle soaking plate extends towards one end close to the front plate to form an extension section, the surfaces of the two sides of the extension section are respectively fixed on the radiating teeth A and the radiating teeth B, so that each layer of radiator of the double-layer finned radiator is respectively communicated with the outside air through the radiating teeth A and the radiating teeth B to realize heat radiation;

a rear panel is arranged on one side, close to the rear plate, of the case body, a ventilation cavity is formed between the rear panel and the rear plate, ventilation openings are formed in two sides of the ventilation cavity, the heat dissipation cavity and the ventilation cavity are communicated through the ventilation openings and are sealed through a side panel, and an axial flow fan fixed on the rear panel is arranged in the ventilation cavity to realize ventilation;

the case body is movably connected to the mounting bracket, and an S7 connector plug arranged on the front plate is electrically connected with an S7 connector socket arranged on the mounting bracket, so that power supply of the case is realized.

As a further technical scheme, a bracket slide rail is arranged on the mounting bracket and used for movably mounting the case body.

As a further technical scheme, a class B locker is arranged on the rear panel, one end of a pressure lever is provided with a hook and is rotationally connected to the class B locker, and the other end of the pressure lever is in snap-fit connection with a pressure tongue arranged on the class B locker; the hook is used for being clamped into a bayonet arranged at the tail end of the bracket slide rail, so that the case body is fixed with the mounting bracket.

As a further technical scheme, a metal vibration isolator is arranged at the bottom of the mounting bracket.

As a further technical scheme, the functional module is arranged on the soaking plate, and two ends of the soaking plate are in contact with the inner surface of the side plate to realize heat conduction; both ends of the functional module are provided with a wedge-shaped locker and a puller for fixing, locking and plugging maintenance.

As a further technical proposal, the intermediate soaking plate and the soaking plate have equivalent thermal conductivity of at least 2000W/m.K on two-dimensional surfaces.

As a further technical scheme, the power supply module comprises a power supply PCB and a power supply module heat-conducting plate fixed on the power supply PCB, and two ends of the power supply module heat-conducting plate are in contact with the inner surface of the side plate to realize heat conduction; and the two ends of the power module are respectively provided with a wedge-shaped locker and a puller for fixing, locking and plugging maintenance.

As a further technical scheme, the axial flow fan has the functions of temperature sensing and PWM speed regulation, and the rotating speed is adjusted in real time according to the ambient temperature.

As a further technical scheme, the front plate, the two side plates, the rear plate, the upper cover plate and the bottom plate of the case body are shielded and sealed by a conductive rubber rope and a feed-through filter.

The invention has the beneficial effects that:

1. by using the vapor chamber adopting the phase-change heat dissipation cooling technology, the module and the case have higher heat conduction efficiency, so that the overall heat dissipation efficiency can be greatly improved;

2. the S7 connector which can be quickly disassembled is used, so that the maintenance time of the equipment can be effectively reduced, and the S7 connector is particularly favorable for being used in an aviation installation environment with small maintenance space;

3. the utility model provides a when having high-efficient radiating airtight quick-witted case structure, make quick-witted case have the lightweight concurrently, low noise, advantage that stability is good, and guarantee the resistant marine environment ability and the higher EMC performance of product, be applicable to all kinds of aviation installation environment.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the chassis body (without the upper cover plate).

Fig. 3 is a schematic view of the installation structure of the side panel and the chassis body.

Fig. 4 is a schematic structural diagram of a power module.

Fig. 5 is a schematic structural diagram of a functional module.

Fig. 6 is a schematic view of the structure of the mounting bracket.

Fig. 7 is a schematic structural view of a class B fastener.

Description of reference numerals: the box comprises a box body 1, a mounting bracket 2, a front plate 3, an S7 connector socket 4, a B-type locker 5, a side plate 6, a functional module 7, a power module 8, an S7 connector plug 9, a guide groove 10, a power module heat conducting plate 11, a power PCB12, a soaking plate 13, a wedge locker 14, a puller 15, a double-layer fin radiator 16, a side plate 17, a bracket slide rail 18, a metal vibration isolator 19, a pressing tongue 20, a pressing rod 21, a rear plate 22, an upper cover plate 23, a rear plate 24, a heat dissipation cavity 25, a ventilation cavity 26, a heat dissipation tooth A27, an extension section 28, a heat dissipation tooth B29, a ventilation opening 30, an axial flow fan 31, a bayonet 32, a hook 33 and a protrusion 34.

Detailed Description

The invention will be described in detail below with reference to the following drawings:

example (b): as shown in fig. 1 and 2, the rapid maintenance ATR cabinet utilizing the phase change technology to enhance heat transfer comprises a cabinet body 1 and a mounting bracket 2, wherein the cabinet body 1 forms a closed cabinet structure through a front plate 3, two side plates 6, a rear plate 22, an upper cover plate 23 and a bottom plate. Referring to fig. 3, ten sets of guide grooves 10 are uniformly distributed at corresponding positions on the inner surface of each side plate 6, so that at most 9 standard modules of 6U including the functional module 7 and the power module 8 can be accommodated in the chassis body 1, and the functional module 7 or the power module 8 is installed between adjacent guide grooves 10 in a plug-in manner. Preferably, both ends of the functional module 7 and the power module 8 are provided with a wedge-shaped locker 14 and a puller 15, so that the fixing, locking and plugging maintenance are facilitated.

As shown in fig. 3, a side panel 17 is mounted on the outer surface of each side panel 6, and a groove is opened on the outer surface, a protrusion 34 (protruding from the inner surface of the side panel 17 to the outer surface of the side panel 17) is provided on the side panel 17 at a position corresponding to the groove, and the groove is used for matching with the protrusion 34 so as to form a heat dissipation cavity 25 between the side panel 17 and the side panel 6 for inserting the double-layer fin heat sink 16. A plurality of heat dissipation teeth A27 are uniformly arranged at one end of the side plate 6 close to the front plate 3, and a plurality of heat dissipation teeth B29 are uniformly arranged at the position of the side plate 17 corresponding to the side plate 6. Double-deck fin radiator 16 comprises middle soaking plate and the fin radiator who fixes at this middle soaking plate both sides surface, and every layer of fin radiator corresponds the embedding the recess or in the arch 34, middle soaking plate extends to the one end that is close to front bezel 3 and forms extension section 28, the surface of extension section 28 both sides is fixed respectively on heat dissipation tooth A27 and heat dissipation tooth B29, makes every layer of radiator of double-deck fin radiator 16 communicate with the outside air through heat dissipation tooth A27 and heat dissipation tooth B29 respectively, realizes the heat dissipation.

One side of the case body 1 close to the back plate 22 is provided with a back panel 24, a ventilation cavity 26 is formed between the back panel 24 and the back plate 22, two sides of the ventilation cavity 26 are provided with ventilation openings 30, the heat dissipation cavity 25 and the ventilation cavity 26 are communicated through the ventilation openings 30 and are sealed by the side panel 17, an axial flow fan 31 is arranged in the ventilation cavity 26, and the axial flow fan 31 is fixed on the back panel 24. Outside air is sucked into the ventilation cavity 26 by the axial flow fan 31, enters the heat dissipation cavity 25 through the ventilation opening 30, and is discharged outwards from the heat dissipation teeth A27 or the heat dissipation teeth B29 by the double-layer fin heat sink 16, so that a heat dissipation cycle is formed. Preferably, the axial flow fan 31 has temperature sensing and PWM speed regulation functions, and adjusts the rotation speed in real time according to the ambient temperature, so that the switching operation of low-noise operation at normal temperature and high-speed operation at high temperature can be realized, and the purposes of low noise and effective heat dissipation can be achieved.

As shown in fig. 4 and 5, the functional module 7 is mounted on the soaking plate 13, and both ends of the soaking plate 13 are in contact with the inner surface of the side plate 6 to realize heat conduction. The power module 8 comprises a power PCB12 and a power module heat-conducting plate 11 fixed on the power PCB12, and the two ends of the power module heat-conducting plate 11 are in contact with the inner surface of the side plate 6 to realize heat conduction. Preferably, the intermediate soaking plate and the soaking plate 13 both adopt a phase-change heat dissipation technology, namely, the equivalent thermal conductivity coefficient of 2000W/m.K is provided on a two-dimensional surface, and the temperature uniformity of the whole two-dimensional surface can be realized.

As shown in fig. 6 and 7, the chassis body 1 is movably connected to the mounting bracket 2 through a bracket slide rail 18, the rear panel 24 is provided with a class B locker 5, one end of the press rod 21 is provided with a hook 33, and the end is rotatably connected to the class B locker 5, and the other end of the press rod 21 is snap-fit connected with a press tongue 20 arranged on the class B locker 5; the hook 33 is used for being clamped into the bayonet 32 arranged at the tail end of the bracket slide rail 18, so that the case body 1 and the mounting bracket 2 are fixed. The S7 connector plug 9 provided on the front plate 3 is electrically connected to the S7 connector receptacle 4 provided on the mounting bracket 2, thereby supplying power to the enclosure. The bottom of the mounting bracket 2 is provided with a metal vibration isolator 19, so that the equipment can meet the adaptability requirements of various vibration and impact environments.

Preferably, the chassis body 1 and the panels (the front plate 3, the two side plates 6, the rear plate 22, the upper cover plate 23, and the bottom plate) are sealed with a conductive rubber cord, a feed-through filter, and other shielding materials, so that the chassis body 1 has high EMC performance.

When the case body 1 and the mounting bracket 2 are mounted, the type B locker 5 needs to be opened, the S7 connector plug 9 on the case body 1 is aligned with the S7 connector socket 4 on the mounting bracket 2, then the case body 1 is placed on the bracket slide rail 18 of the mounting bracket 2, the hook 33 of the type B locker 5 falls into the fastening bayonet 32 below the mounting bracket 2, and then the pressing rod 21 of the type B locker 5 is pushed in, so that the locking mounting of the case body 1 can be completed; when the case body 1 needs to be maintained, the pressing tongue 20 of the class B locker 5 is pressed down, the pressing rod 21 of the class B locker 5 is ejected, and the case can be taken out after the pressing rod 21 is pressed down, so that the quick maintenance of the case is realized.

The S7 connector which can be quickly disassembled is formed by the S7 connector plug 9 and the S7 connector socket 4 to replace a traditional circular electric connector, the connector accords with the MIL-DTL-83527B standard, the modular structure design is adopted, different insulator parts of the connector are matched with the shell to form various models, the use requirements of different users are met, mixed assembly of power, high speed, high frequency and optical contact pieces can be realized, signal integrated transmission is realized, the connector is compatible with various aviation and military equipment cabinets, the environment resistance is good, and the installation and maintenance time of products can be effectively reduced by matching with an aviation standard B type locker.

The invention uses the vapor chamber for enhancing heat transfer by the phase change technology to carry out enhanced heat dissipation on the ATR case, and simultaneously, the equipment meets various environmental adaptability requirements through lightweight design, noise reduction design, EMC design and vibration resistance design. On the other hand, by using the S7 connector with quick plugging capability, the maintenance and replacement efficiency of the product is greatly improved.

It should be understood that equivalent substitutions and changes to the technical solution and the inventive concept of the present invention should be made by those skilled in the art to the protection scope of the appended claims.

Claims

1. A utilize phase transition technique to strengthen quick maintenance ATR machine case of heat transfer which characterized in that: the box body (1) forms a closed box body structure through a front plate (3), two side plates (6), a rear plate (22), an upper cover plate (23) and a bottom plate;

a plurality of groups of guide grooves (10) are uniformly distributed at corresponding positions on the inner surface of each side plate (6), and a plurality of functional modules (7) and at least one power supply module (8) are installed on the guide grooves (10) in a plugging manner;

a side panel (17) is arranged on the outer surface of each side plate (6), a groove is formed in the outer surface, a protrusion (34) is arranged on the side panel (17) at a position corresponding to the groove, the groove is used for being matched with the protrusion (34) to form a heat dissipation cavity (25) between the side panel (17) and the side plate (6) and used for placing a double-layer fin heat radiator (16); a plurality of radiating teeth A (27) are uniformly arranged at one end of the side plate (6) close to the front plate (3), and a plurality of radiating teeth B (29) are uniformly arranged at the position, corresponding to the side plate (6), on the side plate (17); the double-layer finned radiator (16) consists of a middle soaking plate and finned radiators fixed on the surfaces of the two sides of the middle soaking plate, the middle soaking plate extends towards one end close to the front plate (3) to form an extension section (28), the surfaces of the two sides of the extension section (28) are respectively fixed on a radiating tooth A (27) and a radiating tooth B (29), and each layer of radiators of the double-layer finned radiator (16) are respectively communicated with the outside air through the radiating tooth A (27) and the radiating tooth B (29) to realize heat dissipation;

a rear panel (24) is arranged on one side, close to the rear plate (22), of the case body (1), a ventilation cavity (26) is formed between the rear panel (24) and the rear plate (22), ventilation openings (30) are formed in two sides of the ventilation cavity (26), the heat dissipation cavity (25) is communicated with the ventilation cavity (26) through the ventilation openings (30) and is sealed by a side panel (17), and an axial flow fan (31) fixed on the rear panel (24) is arranged in the ventilation cavity (26) to realize ventilation;

the case body (1) is movably connected to the mounting bracket (2), and an S7 connector plug (9) arranged on the front plate (3) is electrically connected with an S7 connector socket (4) arranged on the mounting bracket (2), so that power supply of the case is realized.

2. The rapid maintenance ATR cabinet utilizing phase change technology to enhance heat transfer of claim 1 wherein: and a bracket slide rail (18) is arranged on the mounting bracket (2) and is used for movably mounting the case body (1).

3. The rapid maintenance ATR cabinet utilizing phase change technology to enhance heat transfer of claim 2 wherein: the rear panel (24) is provided with a B-type locker (5), one end of the pressure lever (21) is provided with a hook (33) and is rotatably connected to the B-type locker (5), and the other end of the pressure lever (21) is connected with a pressure tongue (20) arranged on the B-type locker (5) in a buckling manner; the hook (33) is used for being clamped into a bayonet (32) arranged at the tail end of the bracket slide rail (18), so that the case body (1) is fixed with the mounting bracket (2).

4. The rapid maintenance ATR cabinet utilizing phase change technology to enhance heat transfer of claim 1 wherein: and a metal vibration isolator (19) is arranged at the bottom of the mounting bracket (2).

5. The rapid maintenance ATR cabinet utilizing phase change technology to enhance heat transfer of claim 1 wherein: the functional modules (7) are arranged on the soaking plates (13), and two ends of each soaking plate (13) are in contact with the inner surfaces of the side plates (6) to realize heat conduction; both ends of the functional module (7) are provided with a wedge-shaped locker (14) and a puller (15) for fixing, locking, plugging and pulling maintenance.

6. The fast maintenance ATR cabinet utilizing phase change technology to enhance heat transfer of claim 5 wherein: the intermediate soaking plate and the soaking plate (13) have equivalent thermal conductivity of at least 2000W/m.K on two-dimensional surface.

7. The rapid maintenance ATR cabinet utilizing phase change technology to enhance heat transfer of claim 1 wherein: the power supply module (8) comprises a power supply PCB (12) and a power supply module heat-conducting plate (11) fixed on the power supply PCB (12), and two ends of the power supply module heat-conducting plate (11) are in contact with the inner surface of the side plate (6) to realize heat conduction; and the two ends of the power module (8) are respectively provided with a wedge-shaped locker (14) and a puller (15) for fixed locking and plugging maintenance.

8. The rapid maintenance ATR cabinet utilizing phase change technology to enhance heat transfer of claim 1 wherein: the axial flow fan (31) has the functions of temperature sensing and PWM speed regulation, and the rotating speed is adjusted in real time according to the environmental temperature.

9. The rapid maintenance ATR cabinet utilizing phase change technology to enhance heat transfer of claim 1 wherein: and the machine case body (1), the front plate (3), the two side plates (6), the rear plate (22), the upper cover plate (23) and the bottom plate are shielded and sealed by a conductive rubber rope and a feed-through filter.