CN106535566A - Forced air cooling chassis resisting marine atmospheric environment - Google Patents

Abstract

The invention belongs to the forced air cooling technology of an electronic device, and in particular relates to a forced air cooling chassis resisting marine atmospheric environment. Electronic components on the existing forced air cooling chassis directly contact cooling gas and outside atmosphere, and suffer to dust and corrosion after long-term use. Excessive dust affects the cooling effect of the device. The degradation of the three-proofing performance of the chassis is caused by corrosion. According to the invention, the chassis structure is redesigned; the chassis main body in a closed structure is composed of a front panel, a rear panel, a left cooling plate, a right cooling plate, a top plate and a bottom plate; the chassis main body is covered by an upper cover plate, a lower cover plate, a right side plate and a left side plate; the left cooling plate and the right cooling plate are provided with cooling air passages which are communicated with the upper cover plate and the lower cover plate; and on the premise that ventilation, cooling and other performances of the electronic device are ensured, the marine atmospheric environmental resistance of the electronic device is improved.

Description

A forced air-cooled chassis resistant to marine atmospheric environment

technical field

The invention belongs to the forced air-cooling technology of electronic equipment, and in particular relates to a forced air-cooled chassis resistant to marine and atmospheric environments.

Background technique

Electronic equipment working in the marine atmospheric environment is often in an environment of high temperature, high humidity, high salt spray, and acidic atmosphere. Compared with the land environment, the corrosion rate will be greatly accelerated.

The existing forced air-cooled chassis is composed of a lower cover 3, an upper cover 1, a front panel 6, a rear panel 2, a right side panel 7 and a left side panel, and the lower cover 3 and the upper cover 1 have guide rails for fixing Plate 5, lower cover plate 3 and upper cover plate 1 have cooling holes for cooling air to enter and exit, as shown in Figure 1.

The principle of equipment cooling is as follows: the cooling air enters the inside of the chassis through the ventilation holes of the lower cover 3, blows from bottom to top through the sub-board 5 to the top, and takes away the heat of the sub-board 5, as shown in Figure 2.

Disadvantages: The sub-board 5 and the back board 4, including the electronic components on them, are directly in contact with the cooling gas and the outside atmosphere. After long-term use, dust accumulation and corrosion will occur. Excessive dust accumulation will affect the cooling effect of the equipment, and corrosion will cause the chassis to The three-proof performance of the equipment is reduced, and when the equipment is applied in the marine atmosphere environment, the corrosion will be more rapid. At the same time, during cleaning and maintenance in the later stage, because dust will enter the sub-board 5 and the backplane 4 and adhere to the components, cleaning is very difficult. In actual use, the air flow direction can be bottom-up or top-down, and the bottom-up is taken as an example in the figure.

Contents of the invention

The purpose of the present invention is to improve the performance of the electronic equipment against marine and atmospheric environments by redesigning the structure of the case and on the premise of ensuring the ventilation, cooling and other performances of the electronic equipment.

The forced air-cooled chassis of the present invention, which is resistant to marine atmospheric environment, comprises an upper cover plate, a rear panel, a lower cover plate, a front panel, a right side plate and a left side plate, and the upper cover plate and the lower cover plate have cooling holes for Cooling air enters and exits, and the forced air-cooled chassis also includes a left cold plate, a right cold plate, a top plate and a bottom plate, and the front panel, the rear panel, the left cold plate, the right cold plate, the top plate and the bottom plate form a closed structure of the chassis body, The upper cover, the lower cover, the right side and the left side cover the outside of the chassis main body, and the left cold plate and the right cold plate have a cooling air channel communicating with the upper cover and the lower cover.

Further, there are air inlet/outlets on the upper and lower sides of the left cold plate and the right cold plate.

Further, there is a gap between the top board and the bottom board and the upper cover board and the lower cover board.

Further, a backplane and several subboards connected thereto are installed in the chassis.

Further, the heat generated by the sub-boards is transferred to the left and right cold plates, and the cooling air takes away the heat from the side plates through the cooling holes and cooling air channels.

Beneficial effects of the present invention: sub-boards and back boards including the electronic components on them are enclosed in the main body of the case, and are not directly in contact with cooling gas and outside air, thereby avoiding dust accumulation and corrosion on the sub-boards and back boards. The accumulated dust is isolated in the independent air duct, which will not affect the cooling effect of the equipment. In the later cleaning and maintenance, you only need to open the upper and lower covers and the left and right side panels to complete the cleaning. This process will not touch the internal components. Reduced work difficulty.

Description of drawings

Fig. 1 is the structural composition schematic diagram of existing forced ventilation cabinet;

Fig. 2 is a schematic diagram of the cooling principle of an existing forced ventilation chassis;

Fig. 3 is a perspective view of the forced ventilation cabinet of the present invention;

Fig. 4 is the composition schematic diagram of forced ventilation cabinet of the present invention;

Fig. 5 is a schematic diagram of the composition of the chassis main body of the present invention;

Fig. 6 is a schematic diagram of the cooling principle of the forced ventilation cabinet of the present invention.

1-upper cover, 2-rear panel, 3-lower cover, 4-back panel, 5-sub-board, 6-front panel, 7-right panel, 8-left panel, 9-left cold panel, 10-right cold plate, 11-top plate, 12-bottom plate

detailed description

As shown in Figure 3-5, a forced air-cooled chassis resistant to marine atmospheric environments includes an upper cover 1, a rear panel 2, a lower cover 3, a front panel 6, a right side panel 7, and a left side panel 8. The above-mentioned upper cover plate 1 and lower cover plate 3 have cooling holes for cooling air to enter and exit. Panel 6, rear panel 2, left cold plate 9, right cold plate 10, top plate 11 and bottom plate 12 form the chassis main body of closed structure, described upper cover plate 1, lower cover plate 3, right side plate 7 and left side plate 8 Covering the outside of the main body of the case, the left cold plate 9 and the right cold plate 10 have a cooling air channel communicating with the upper cover 1 and the lower cover 3 .

The left cold plate 9 and the right cold plate 10 have air inlet/outlet ports on the upper and lower sides. There is a gap between the top plate 11 and the bottom plate 12 and the upper cover plate 1 and the lower cover plate 3 .

A backplane 4 and several subboards 5 connected thereto are installed in the chassis. The heat generated by the sub-board 5 is transferred to the left and right cold plates 9, 10, and the cooling air takes away the heat of the side plates through the cooling holes and cooling air channels.

The main body of the chassis is a closed structure, which prevents the contact between the sub-board, the back board and the electronic components on it and the outside atmosphere.

Equipment cooling principle: the heat generated by the sub-board 5 is transferred to the cold plates on both sides, the cooling air enters the bottom of the chassis through the ventilation holes of the bottom plate, passes through the air ducts on both sides, blows from bottom to top to the top, and takes away the heat of the side plates, such as Figure 6 shows.

Claims (5)

1. A forced air-cooled chassis resistant to marine atmospheric environments, comprising an upper cover (1), a rear panel (2), a lower cover (3), a front panel (6), a right side panel (7) and a left side plate (8), the upper cover plate (1) and the lower cover plate (3) have cooling holes for cooling air to enter and exit, it is characterized in that: the forced air cooling chassis also includes a left cold plate (9), a right cold plate (10), top plate (11) and base plate (12), by described front panel (6), rear panel (2), left cold plate (9), right cold plate (10), top plate (11) and base plate ( 12) The chassis body forming a closed structure, the upper cover (1), lower cover (3), right side panel (7) and left side panel (8) cover the outside of the chassis body, and the left cold plate (9) and the right cold plate (10) have cooling air passages communicating with the upper cover plate (1) and the lower cover plate (3). 2. The forced air cooling cabinet according to claim 1, characterized in that: the left cold plate (9) and the right cold plate (10) have air inlet/outlet ports on both upper and lower sides. 3. The forced air cooling cabinet according to claim 1, characterized in that there are gaps between the top plate (11) and the bottom plate (12) and the upper cover plate (1) and the lower cover plate (3). 4. The forced-air-cooled chassis according to any one of claims 1-3, characterized in that: a backplane (4) and several sub-boards (5) connected thereto are installed in the chassis. 5. The forced air-cooled chassis according to any one of claims 1-3, characterized in that: the heat generated by the sub-board (5) is transferred to the left and right cold plates (9, 10), and the cooling air passes through The heat dissipation holes and the cooling air channel take away the heat of the left and right cold plates (9, 10).