CN108983917B

CN108983917B - Computer machine case with automatic dust removal function

Info

Publication number: CN108983917B
Application number: CN201811177641.9A
Authority: CN
Inventors: 李歆; 段善荣
Original assignee: Hubei University of Science and Technology
Current assignee: Hubei University of Science and Technology
Priority date: 2018-10-10
Filing date: 2018-10-10
Publication date: 2023-04-25
Anticipated expiration: 2038-10-10
Also published as: CN108983917A

Abstract

The invention provides a computer case with an automatic dust removal function, and belongs to the technical field of computers. The computer case comprises a case body, wherein a protective cover is arranged on the outer wall surface of one side of the case body, a rotating shaft is rotationally connected to the case body, a cooling fan is fixedly arranged on the rotating shaft, cooling and dispersing are located in the protective cover, the rotating shaft is a hollow shaft with an airflow channel, an electrostatic emitter is further arranged in the case, the electrostatic emitter comprises an electrostatic dust collection rod, the electrostatic dust collection rod is inserted into the airflow channel, a vent hole I is formed in the protective cover, a vent hole II corresponding to the vent hole I is formed in the case, a protective cavity is formed between the inner wall of the protective cover and the outer wall of the case, the vent hole I is communicated with the outside, the vent hole II is communicated with the inner cavity of the case, the airflow channel is communicated with the inner cavity of the case and the protective cavity, a motor is arranged in the case, and an output shaft of the motor is connected with the rotating shaft through a belt. The invention has the advantages of automatic dust collection and removal, etc.

Description

Computer machine case with automatic dust removal function

Technical Field

The invention belongs to the technical field of computers, and relates to a computer case with an automatic dust removal function.

Background

The case is used as a part of computer accessories, has the main functions of placing and fixing the computer accessories, has the functions of supporting and protecting, and can further stabilize a computer system and reduce the condition of short circuit; in addition, the computer case has an important function of shielding electromagnetic radiation.

The fan for radiating heat is arranged in the general case, the fan runs to inevitably cause air flow, dust in the air can enter the case along with the air flow, and the existing case does not have a dust removing function, so that a large amount of dust can be accumulated in the case after long-term use, and even a computer can not run, particularly a large-sized computer case can be caused.

Disclosure of Invention

The invention aims at solving the problems existing in the prior art and providing a computer case with an automatic dust removing function, and aims at solving the technical problems how to collect dust and then discharge the dust.

The aim of the invention can be achieved by the following technical scheme: the utility model provides a computer machine case with automatic dust removal function, its characterized in that, this computer machine case includes the box, the outer wall of one side of box is provided with a protection casing, rotate on the box and be connected with a pivot, fixedly be provided with radiator fan in the pivot, the dispersion of heat dissipation is located the protection casing, the pivot is the cavity axle that has the air current passageway, still be provided with an electrostatic emitter in the machine case, electrostatic emitter includes an electrostatic dust absorption pole, the electrostatic dust absorption pole is inserted and is established in the air current passageway, vent one has been seted up on the protection casing, vent two corresponding with vent one has been seted up on the machine case, form a protection cavity between protection casing inner wall and the machine case outer wall, vent one intercommunication protection cavity and external world, vent two intercommunication protection cavity and the inner chamber of machine case, the inner chamber and the protection cavity of air current passageway intercommunication machine case, be provided with a motor in the machine case, link to each other through a belt between the output shaft and the pivot of motor.

Static electricity generator: the computer is powered by a low-voltage circuit which is subjected to voltage reduction by a main power supply of the computer, the low voltage is boosted to direct-current high voltage of 500-1000 v through conversion of a DC/DC circuit, and the open-circuit voltage is input to the electrostatic dust collection rod, so that the electrostatic dust collection rod is electrified and begins to absorb dust. The computer case is a large-scale computer for data processing such as a machine room, the case is generally grounded, and the low-voltage end of the static generator is the zero-potential end of the case body grounded, or is connected to the zero-potential end of zero-resistance objects such as the ground, the wall surface and the like through a lead.

Principle of: the static dust absorption pole in the static transmitter is because carrying high-voltage static, can adsorb the dust in the box on the static dust absorption pole, and when the motor was operated, radiator fan was rotatory, had the adsorption affinity of adsorbing the gas in the box, and the region department that the inboard air vent of box was two located forms the negative pressure, and the inner of air current passageway also has the negative pressure, and under the negative pressure effect, the dust of adsorbing on the static dust absorption pole can be discharged to the protection casing in, and the same under the air current effect through air vent one, the dust joins in marriage and discharges outside the protection casing to realize the automatic discharge of dust.

In the computer case with the automatic dust removing function, the inner wall of the air flow channel is provided with a plurality of groups of scraping strips longitudinally arranged along the air flow channel, and each scraping strip consists of a plurality of nylon bristles.

The scraping strip has the function of stripping dust on the electrostatic dust collection rod to prevent the dust from adhering to the electrostatic dust collection rod.

In the above-mentioned computer case with automatic dust removal function, a negative pressure turbine is disposed on an inner wall of the rotating shaft at the outlet of the airflow channel.

In order to increase the negative pressure at the inner end of the airflow channel, a negative pressure turbine is arranged on the inner wall of the rotating shaft at the outlet of the airflow channel, and the negative pressure turbine not only can improve ventilation airflow, but also can increase negative pressure, so that dust on the electrostatic dust collection rod is easier to strip.

In the computer case with the automatic dust removing function, an inclination angle between the axis of the airflow channel and the horizontal plane is 75-85 degrees.

In order to prevent dust from accumulating in the airflow passage, the airflow passage is inclined, i.e., the outer end of the rotating shaft is inclined to the lower side of the box body.

In the computer case with the automatic dust removing function, a supporting sleeve made of an insulating material is arranged on the inner wall of the protective cover, and the outer end of the electrostatic dust collection rod is inserted into the supporting sleeve.

The supporting sleeve plays a supporting role on the electrostatic dust collection rod, deformation or movement of the scraping strip due to the action of the scraping strip is avoided, meanwhile, the outer end of the electrostatic dust collection rod can be insulated, and the safety of the case is improved.

In the computer case with the automatic dust removal function, a control circuit is arranged between the motor and the electrostatic emitter, and the motor and the electrostatic emitter are electrified alternately.

One or a switch is arranged between a low-voltage power supply of the electrostatic emitter and an input power supply of the motor, the low-voltage power supply and the input power supply are not powered on or powered off simultaneously, the operation of the computer is synchronous with the motor, the static dust collection rod is not electrified in the operation process of the computer, the safety is ensured, the dust collection efficiency is improved, and dust is prevented from being adsorbed on the static dust collection rod and not easy to be discharged.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the computer case.

Fig. 2 is an enlarged view of a portion a in fig. 1.

In the figure, 1, a box body; 11. a second vent hole; 2. a protective cover; 21. a first vent hole; 22. a protective cavity; 3. a rotating shaft; 31. a heat radiation fan; 32. an air flow channel; 33. scraping the strip; 34. a negative pressure turbine; 35. a support sleeve; 4. an electrostatic emitter; 41. an electrostatic dust collection rod; 51. a motor; 52. a belt.

Detailed Description

The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the computer case comprises a case body 1, a protecting cover 2 is arranged on the outer wall surface of one side of the case body 1, a rotating shaft 3 is rotatably connected to the case body 1, a cooling fan 31 is fixedly arranged on the rotating shaft 3, cooling and dispersing are located in the protecting cover 2, the rotating shaft 3 is a hollow shaft with an airflow channel 32, an electrostatic emitter 4 is further arranged in the case, the electrostatic emitter 4 comprises an electrostatic dust collection rod 41, the electrostatic dust collection rod 41 is inserted in the airflow channel 32, a first vent hole 21 is formed in the protecting cover 2, a second vent hole 11 corresponding to the first vent hole 21 is formed in the case, a protecting cavity 22 is formed between the inner wall of the protecting cover 2 and the outer wall of the case, the first vent hole 21 is communicated with the outside, the second vent hole 11 is communicated with the inner cavity of the case, the airflow channel 32 is communicated with the inner cavity of the case and the protecting cavity 22, a motor 51 is arranged in the case, and an output shaft of the motor 51 is connected with the rotating shaft 3 through a belt 52.

Static electricity generator: the computer is powered by a low-voltage circuit which is subjected to voltage reduction by a main power supply of the computer, the low voltage is boosted to direct-current high voltage of 500-1000 v through conversion of a DC/DC circuit, and the open-circuit voltage is input to the electrostatic dust collection rod 41, so that the electrostatic dust collection rod 41 is electrified and starts to absorb dust. The computer case is a large-scale computer for data processing such as a machine room, the case is generally grounded, and the low-voltage end of the static generator is the zero-potential end of the case body 1 grounded, or is connected to the zero-potential end of a zero-resistance object such as the ground, a wall surface and the like through a lead.

Principle of: the electrostatic dust collection rod 41 in the electrostatic emitter 4 can absorb dust in the box body 1 on the electrostatic dust collection rod 41 due to carrying high-voltage static electricity, when the motor 51 operates, the cooling fan 31 rotates, the negative pressure is formed at the position of the region where the air vent II 11 in the box body 1 is located due to the absorption force of the air in the box body 1, the inner end of the air flow channel 32 also has the negative pressure, the dust absorbed on the electrostatic dust collection rod 41 can be discharged into the protective cover 2 under the action of the negative pressure, and the dust is distributed and discharged out of the protective cover 2 under the action of the air flow through the air vent I21, so that the automatic discharge of the dust is realized.

The inner wall of the air flow channel 32 is provided with a plurality of groups of scraping strips 33 which are longitudinally arranged along the air flow channel 32, and the scraping strips 33 are composed of a plurality of nylon bristles. The scraping strip 33 is used for stripping dust on the electrostatic dust collection rod 41 to prevent the dust from adhering to the electrostatic dust collection rod 41.

A negative pressure turbine 34 is arranged on the inner wall of the rotating shaft 3 at the outlet of the airflow channel 32. In order to increase the negative pressure at the inner end of the airflow passage 32, a negative pressure turbine 34 is provided on the inner wall of the rotating shaft 3 at the outlet of the airflow passage 32, and the negative pressure turbine 34 can not only increase the ventilation airflow but also increase the negative pressure, so that the dust on the electrostatic dust collection lever 41 is more easily peeled off.

Preferably, the axis of the air flow channel 32 is inclined at an angle of between 75 ° and 85 ° to the horizontal. In order to prevent dust from accumulating in the airflow passage 32, the airflow passage 32 is inclined, i.e., the outer end of the rotating shaft 3 is inclined downward of the casing 1.

The inner wall of the protective cover 2 is provided with a supporting sleeve 35 made of insulating material, and the outer end of the electrostatic dust collection rod 41 is inserted into the supporting sleeve 35. The supporting sleeve 35 has the supporting function on the electrostatic dust collection rod 41, prevents the scraping strip 33 from deforming or moving due to the action of the scraping strip, and can insulate the outer end of the electrostatic dust collection rod 41, so that the safety of the case is improved.

A control circuit is arranged between the motor 51 and the electrostatic emitter 4, and the motor and the electrostatic emitter are electrified alternately. That is, one or a switch is arranged between the low-voltage power supply of the electrostatic emitter 4 and the input power supply of the motor 51, the two power supplies are not simultaneously electrified or simultaneously powered off, and the operation of the computer is synchronous with the motor 51, so that the electrostatic dust collection rod 41 is ensured not to be electrified in the operation process of the computer, the safety is ensured, the dust collection efficiency is improved, and the dust is prevented from being adsorbed on the electrostatic dust collection rod 41 and not easy to be discharged.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The computer case with the automatic dust removing function is characterized by comprising a case body (1), a protective cover (2) is arranged on the outer wall surface of one side of the case body (1), a rotating shaft (3) is rotationally connected to the case body (1), a cooling fan (31) is fixedly arranged on the rotating shaft (3), the cooling fan (31) is positioned in the protective cover (2), the rotating shaft (3) is a hollow shaft with an air flow channel (32), an electrostatic emitter (4) is further arranged in the case, the electrostatic emitter (4) comprises an electrostatic dust collection rod (41), the electrostatic dust collection rod (41) is inserted in the air flow channel (32), a vent hole I (21) is formed in the protective cover (2), a protective cavity II (11) corresponding to the vent hole I (21) is formed between the inner wall of the protective cover (2) and the outer wall of the case, the vent hole I (21) is communicated with the outside, the vent hole I (21) is communicated with the protective cavity (22) and the outside, the vent hole II (11) is communicated with the inner cavity (22) of the motor, the inner cavity (22) is communicated with the inner cavity (51) of the case, the output shaft of the motor (51) is connected with the rotating shaft (3) through a belt (52);

a control circuit is arranged between the motor (51) and the electrostatic emitter (4), and the motor and the electrostatic emitter are electrified alternately.

2. The computer case with the automatic dust removal function according to claim 1, wherein a plurality of groups of scraping strips (33) are arranged on the inner wall of the air flow channel (32) longitudinally along the air flow channel (32), and the scraping strips (33) are composed of a plurality of nylon bristles.

3. A computer case with automatic dust removal function according to claim 1 or 2, characterized in that a negative pressure turbine (34) is arranged on the inner wall of the rotating shaft (3) at the outlet of the air flow channel (32).

4. A computer cabinet with automatic dust removal function according to claim 1 or 2, characterized in that the axis of the air flow channel (32) is inclined at an angle of between 75 ° and 85 ° to the horizontal.

5. A computer case with automatic dust removal function according to claim 1 or 2, wherein a supporting sleeve (35) made of insulating material is arranged on the inner wall of the protective cover (2), and the outer end of the electrostatic dust collection rod (41) is inserted into the supporting sleeve (35).