CN102307460B - A kind of dustproof case and router chassis thereof - Google Patents

Abstract

The embodiment of the present invention discloses a dust-proof case, which includes a case body, a circuit board is arranged in the case body, a circuit board is arranged in the case body, an opening is provided at one end of the case body, and a ventilating device is provided at the other end. The opening is provided with a suction fan and a blowing fan, an air duct is formed between the opening and the ventilation hole, and the components on the circuit board are located in the air duct, wherein when the suction fan is turned on When the blowing fan is turned off, the blowing fan is turned off; when the blowing fan is turned on, the suction fan is turned off. The present invention can reduce the accumulation of dust in the box, reduce the corrosion of the circuit board, and reduce the market return rate by adding the suction fan and the blowing fan.

Description

A kind of dust-proof case and router case thereof

technical field

The invention relates to the communication field, in particular to a dust-proof case and a router case thereof.

Background technique

At present, in order to prevent the circuit board in the router case from accumulating dust and corrosion, the dust-proof design of the case is to install a fixed dust-proof net at the air inlet of the case to intercept dust.

The existing dust-proof net is similar to the structure of doors and windows. After a period of time, more and more dust adheres to the net surface. After the dust-proof net is blocked, if the dust is not replaced or removed in time, the air is difficult to circulate into the chassis, resulting in excessive temperature in the chassis. , will lead to online accidents. Generally, the dust-proof net is replaced manually. There is also a relay to control the flapping of the dust-proof net for dust removal. The dust-proof net is driven by the motor for closed-loop movement, and the dust-removing brush is located below, and the dust-proof net can be removed when the dust-proof net passes by.

In the process of realizing the present invention, the inventors found that the prior art has at least the following problems: the maintenance cost of regularly cleaning and replacing the dust-proof net is relatively high. Through the relay, the structure of the device for controlling the dust removal by flapping the dust-proof net is relatively complicated, takes up a lot of space, and has poor dust removal effect. The two-layer dust-proof net installed at the air outlet of the motor-driven dust-proof net for dust removal has a poor heat dissipation effect, and the dust-removing effect by using a brush is poor, and the dust still accumulates seriously after a long time.

Contents of the invention

The purpose of the embodiments of the present invention is to provide a dust-proof cabinet with low cost and good dust removal effect in view of the defects of the above-mentioned prior art.

In order to achieve the above object, the technical solution adopted by the present invention is: a dustproof cabinet, including a box body, a circuit board is arranged in the box body, an opening is provided at one end of the box body, and a ventilation hole is provided at the other end. A suction fan and a blower fan are arranged in the opening, an air duct is formed between the opening and the ventilation hole, and the components on the circuit board are located in the air duct, wherein when the suction fan is turned on, the The blowing fan is turned off; when the blowing fan is turned on, the suction fan is turned off.

Another technical solution provided by the embodiment of the present invention is that the dustproof cabinet is a router cabinet.

The beneficial effect brought by the technical solution provided by the embodiment of the present invention is: using the chassis structure of the present invention, when using the suction fan to dissipate heat, because the devices on the circuit board block the wind direction, dust will be deposited near the pins of the devices, requiring When clearing the dust accumulated on the pins, stop the suction fan, turn on the blowing fan, then blow air from the ventilation holes to blow away the dust near the pins. Through the recycling of the two heat dissipation methods of suction and blowing, the accumulation of dust on the circuit board can be greatly reduced, the dust removal effect is good, the corrosion of the circuit board is prevented, and the market return rate is reduced, and the dust-proof net does not need to be replaced frequently, and the use cost is low.

Description of drawings

Fig. 1 is a schematic structural diagram of a dustproof cabinet provided in an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of another dust-proof cabinet provided in an embodiment of the present invention.

In the picture:

1 box, 2 circuit boards, 3 openings, 4 suction fans, 5 blowing fans, 6 ventilation holes.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Referring to Fig. 1, a dust-proof case includes a case body 1, a circuit board 2 is arranged inside the case body 1, an opening 3 is provided at one end of the case body 1, a ventilation hole 6 is provided at the other end, and a suction fan is provided inside the opening 3 4 and blowing fan 5, air duct is formed between opening 3 and ventilation hole 6, and the device on the circuit board 2 is positioned at described air duct, and wherein, when suction fan 4 opens, blowing fan 5 closes; When blowing fan 5 opens , the suction fan 4 is closed.

The invention does not use a dust-proof net, and performs dust removal treatment on the surface of the circuit board by controlling the wind direction in the cabinet. The heat dissipation mode of the chassis is controllable, and the suction and blowing heat dissipation can be realized by switching the suction fan and the blowing fan. When the suction fan is used for a long time to dissipate heat, because the devices on the circuit board block the wind direction, dust will be deposited near the pins of the device, so that the dust will accumulate on the side of the pins of the device near the ventilation holes, and these accumulated dust needs to be removed. When there is dust, stop the suction fan from rotating, and the blower fan starts to work, then blows air from the air vent to blow away the dust near the tube pins. After the dust removal work is finished, the normal working mode is resumed, the blowing fan is turned off, and the suction fan is turned on. Through the recycling of these two heat dissipation methods, the accumulation of dust on the circuit board can be greatly reduced, the effect of dust removal is good, the corrosion of the circuit board can be prevented, and the market return rate can be reduced.

Referring to FIG. 1 , in order to obtain a better dust removal effect, the wind direction of the suction fan 4 and the blower fan 5 is parallel to the plane on which the circuit board 2 places the components.

This is conducive to the formation of wind circulation. When the suction fan is running, the dust is removed from the opening to the outside of the box. When the blowing fan is running, most of the dust is removed from the ventilation holes to the outside of the box.

Referring to Fig. 1, the suction fan 4 and the blowing fan 5 can be placed side by side at the front and rear of the opening 3, that is, when the opening 3 is provided with the suction fan 4, the rear end of the suction fan 4 is provided with the blowing fan 5, and can also be selected when the opening When 3 is provided with blowing fan 5, blowing fan 5 rear end is provided with suction fan 4. Wherein, the suction fan 4 can be a series connection of a plurality of suction fans, and the blowing fan 5 can be a series connection of a plurality of blowing fans.

The front and back side-by-side mode is adopted, each fan has a larger working area, and the effect of heat dissipation and dust removal is better.

Referring to Fig. 2, the suction fan 4 and the blower fan 5 can be placed side by side at the opening 3, and the upper and lower ends of the opening 3 are selected to be provided with the suction fan 4 and the blower fan 5, that is, the upper end of the opening 3 is provided with a suction fan 4, The lower end of the suction fan 4 is provided with a blower fan 5 . Also can be provided with blowing fan 5 at the upper end of opening 3, and be provided with suction fan 4 at the lower end of blowing fan 5.

Referring to Fig. 1 and Fig. 2, in order to achieve a better dust removal effect, the ventilation hole 6 is arranged on the side corresponding to the opening 3 of the box body 1, that is, the suction fan 4 and the blower fan 5 are arranged on one side of the box body 1, and the other side The side is provided with ventilation hole 6, and ventilation hole 6 can be a plurality of, and air duct is formed between the side that suction fan 4 and blowing fan 5 are set and the other side that ventilation hole 6 is set, and suction fan 4 and blowing fan can be arranged. The wind direction of 5 is parallel to the plane where the devices are placed on the circuit board 2, the devices on the circuit board 2 are located in the air duct, the suction fan 4 and the blower fan 5 do not work at the same time, and the circulation of the two heat dissipation methods of suction and blowing can be used. Remove the dust deposited on the pins of the device, greatly reducing the accumulation of dust on the circuit board. Referring to FIG. 2 , of course, ventilation holes 6 may also be provided on the upper side of the box body 1 .

When the blowing fan is running, an air duct is formed on the circuit board, and the dust is discharged out of the box through the air duct through the ventilation holes on the side.

The dust-proof cabinet of the present invention is especially suitable for router cabinets, which can reduce dust accumulation in the cabinet, reduce circuit board corrosion, and reduce market return rate.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (4)

1. A dust-proof cabinet, comprising a cabinet, a circuit board is arranged in the cabinet, and it is characterized in that one end of the cabinet is provided with an opening, and the other end is provided with a ventilation hole, and a suction hole is provided in the opening. A fan and a blowing fan, an air duct is formed between the opening and the ventilation hole, and the components on the circuit board are located in the air duct, wherein, when the suction fan is turned on, the blowing fan is turned off; When the blowing fan is turned on, the suction fan is turned off; The wind direction of the suction fan and the blower fan is parallel to the plane on which the circuit board is placed; The ventilation holes are arranged on the upper side of the other end of the box; The suction fan and the blowing fan are placed side by side before and after the opening; The suction fan is a plurality of suction fans connected in series, and the blowing fan is a plurality of blowing fans connected in series. 2. The dust-proof chassis according to claim 1, wherein the opening is provided with a suction fan, and the rear end of the suction fan is provided with a blower fan; or the opening is provided with a blower fan, and the blower fan The rear end of the fan is provided with a suction fan. 3. The dust-proof cabinet according to any one of claims 1-2, characterized in that, the ventilation hole is disposed on a side opposite to the opening. 4. The dust-proof case according to any one of claims 1-2, characterized in that the dust-proof case is a router case.