CN110536595A - A kind of certainly cooling shield machine cabinet dust guard - Google Patents

Abstract

The invention discloses a kind of from cooling shield machine cabinet dust guard, including cabinet body, the two sides of the cabinet body are provided with ventilation hole, the inside of two ventilation holes is provided with limited block, what the outside of the limited block was located at the ventilation hole is internally provided with dust excluding plate, it is located above and below the ventilation hole in the cabinet body and is provided with regulating device, dust guard is provided at the top of the cabinet body, and the top of cabinet body, which is located on the outside of the dust guard, offers mounting groove, is related to shielding cabinet equipment technical field.Dust excluding plate should be mounted and dismounted by the way that regulating device is convenient with dust guard from cooling shield machine cabinet, it is easy to operate, it is easy to use, cleaning and replacement after convenient dust-proofing plate long-time use, dust excluding plate is avoided to influence the ventilation inside cabinet body and heat dissipation effect using rear dust stratification for a long time, the using effect for ensureing dust excluding plate, to improve the dust-proof effect of cabinet body.

Description

A kind of certainly cooling shield machine cabinet dust guard

Technical field

It is specially a kind of from cooling shield machine cabinet dust guard the present invention relates to shielding cabinet equipment technical field.

Background technique

Shielding cabinet is one kind of cabinet, is called electromagnetic shielding rack, and shielding cabinet can be used for placing computer, can shut out Insulation magnetic wave effectively inhibits computer electromagnetic information leakage and prevents external strong electromagnetic harassing and wrecking from influencing computer just to personal injury A kind of electromagnetic shielding rack of electromagnetic shielding equipment often to work, it includes bottom of cabinet, top cover, side wall, it further includes organic frame, bullet Reed, upper waveguide window, lower waveguide window, door knife, filter, shield glass, perspective shielding glass door, back door, waveguide, optical transmitter and receiver Frame composition, rack is four and is fixed on cabinet inner sidewall, and optical transmitter and receiver frame is mounted in four racks, upper waveguide window, lower waveguide window It is separately positioned on top cover, in bottom of cabinet, door is equipped on cabinet, be equipped with spring leaf on four side of door, be equipped with door knife, screen on four side of doorframe It covers cabinet front and is equipped with perspective shielding glass door, can be used for placing computer, server, electromagnetic wave can be prevented, the person is hurt Evil, it is effective to inhibit computer electromagnetic information leakage and prevent external strong electromagnetic harassing and wrecking from influencing computer normal work, it is applicable in frequency range Width meets the requirement of B grades of B grades or C grades of national standard and army's mark.

Since interior of equipment cabinet is semienclosed structure, after prolonged use, the inside of cabinet can be because of the stream of air Lead to and carry the inside that part dust falls into cabinet, causes the inside of cabinet a large amount of dust occur, when dust enters cabinet It will affect the normal use of electronic equipment behind inside, when dust is fallen into the equipment of interior of equipment cabinet.

Summary of the invention

(1) the technical issues of solving

In view of the deficiencies of the prior art, the present invention provides a kind of from cooling shield machine cabinet dust guard, solves screen The inside for covering cabinet is easy the problem of accumulating dust.

(2) technical solution

In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of use from cooling shield machine cabinet is prevented Dirt device includes cabinet body, and the two sides of the cabinet body are provided with ventilation hole, and the inside of two ventilation holes is all provided with It is equipped with limited block, what the outside of the limited block was located at the ventilation hole is internally provided with dust excluding plate, and the cabinet body is upper It is provided with regulating device above and below the ventilation hole, dust guard is provided at the top of the cabinet body, and And the top of cabinet body is located on the outside of the dust guard and offers mounting groove, and the installation is located in the cabinet body The side of slot offers ash removing opening.

Further, the mounting groove is internally provided with installation bolt, and the inside of mounting groove passes through the installation Bolt is fixedly installed with mounting plate.

Further, it is fixedly connected with connecting tube at the top of the mounting plate, is fixedly connected at the top of the connecting tube Air draft box, the bottom of the air draft box inner wall are fixedly connected with blower, and are located at the wind between the two sides of air draft box inner wall Accessory plate is provided with above machine, the top of the accessory plate is inclined structure, and the two sides of the air draft box are provided with row Air hose.

Further, the dust excluding plate includes antidusting layer and moisture resistance layer, and the antidusting layer is mainly Air Filter preparation, described Moisture resistance layer is mainly moisture wicking material preparation, and the inside of moisture resistance layer is porous structure.

Further, the regulating device includes regulating tank and adjustment hole, and the regulating tank is opened in the cabinet body The upper side positioned at the ventilation hole, the adjustment hole are set to the outside for being located at the regulating tank in the cabinet body, and And the inside of adjustment hole and the inside of the regulating tank are interconnected.

Further, the regulating tank is internally provided with slide bar, slidably connects movable plate, the work on the slide bar Positioning plate is fixedly connected on movable plate, the side of the positioning plate is located at the cabinet sheet through the side of the regulating tank inner wall On body and the inside of the adjustment hole is extended to, and it is arc that positioning plate, which extends to the side of the adjustment hole interior surface, Structure.

Further, the movable plate is fixedly connected with retaining spring, and movable plate far from the side of the positioning plate Side be fixedly connected with adjustment axis, one end of the adjustment axis passes through the adjustment hole and extends to the interior of the adjustment hole Portion.

Further, there are four the regulating device settings, and two regulating devices are mutually fitted with a ventilation hole Match, two regulating devices are symmetrically disposed on above and below the ventilation hole.

Further, the dust guard includes dedusting hole, and the dedusting hole is set to the top of the cabinet body, and And dedusting hole is internally provided with stop collar.

Further, the inner surface of the dedusting hole is located at the top of the stop collar for inner threaded surface, and dedusting hole Be internally located above the stop collar and be provided with connection ring, the outer surface of the connection ring is external screw thread face, and is connected The inside of ring is fixedly connected with antidusting net.

(3) beneficial effect

The invention has the following advantages:

(1), dust excluding plate should be mounted and dismounted by the way that regulating device is convenient, behaviour from cooling shield machine cabinet dust guard Make simple, easy to use, cleaning and replacement after convenient dust-proofing plate long-time use, dust excluding plate long-time is avoided to use rear dust stratification And the ventilation inside cabinet body and heat dissipation effect are influenced, the using effect of dust excluding plate is ensured, to improve the anti-of cabinet body Dirt effect.

(2), the ventilation effect at the top of cabinet body should ensured by dust guard from cooling shield machine cabinet dust guard While fruit and heat dissipation effect, have the effect of dust-proof, while the installation and removal of dustproof construction are simple and convenient, it is easy to operate, Or else it needs to be removed using when dustproof construction, accelerates the heat dissipation effect inside cabinet body 1.

It (3), should be from cooling shield machine cabinet dust guard, by facilitating mounting plate to be mounted on mounting groove by installing bolt Inside so that the installation and removal between mounting plate and mounting groove, thus convenient to setting inside air draft box and air draft box The standby top for being mounted on mounting groove is removed from the top of mounting groove, and ash removing opening conveniently falls into the cleaning of the dust inside mounting groove And exclusion.

Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time

Detailed description of the invention

Fig. 1 is a kind of whole preferable structural schematic diagram of the present invention；

Fig. 2 is the enlarged drawing at present invention A shown in FIG. 1；

Fig. 3 is the enlarged drawing at present invention B shown in FIG. 1；

In figure, 1- cabinet body, 2- ventilation hole, 3- limited block, 4- dust excluding plate, 41, antidusting layer, 42, moisture resistance layer, 5- adjusting Device, 51- regulating tank, 52- adjustment hole, 53- slide bar, 54- movable plate, 55- positioning plate, 56- retaining spring, 57- adjustment axis, 6- Dust guard, 61- dedusting hole, 62- stop collar, 63- connection ring, 64- antidusting net, 7- mounting groove, 8- ash removing opening, 9- install spiral shell Bolt, 10- mounting plate, 11- connecting tube, 12- air draft box, 13- blower, 14- accessory plate, 15- air-exhausting duct.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that, term " aperture ", "upper", "lower", " thickness ", "top", " in ", Indicating positions or the positional relationship such as " length ", "inner", " surrounding ", are merely for convenience of description of the present invention and simplification of the description, without It is that the component of indication or suggestion meaning or element must have a particular orientation, is constructed and operated in a specific orientation, therefore not It can be interpreted as limitation of the present invention.

Fig. 1-3 is please referred to, the embodiment of the present invention provides a kind of technical solution: a kind of from cooling shield machine cabinet dust guard Including cabinet body 1, the two sides of the cabinet body 1 are provided with ventilation hole 2, and the ventilation hole 2 of two sides can be improved effectively Shield the wind flow of interior of equipment cabinet, ensure the ventilation effect of shielding interior of equipment cabinet, in order to heat scatter and disappear and it is cooling, two The inside of the ventilation hole 2 is provided with limited block 3, and a limit is provided at the top and bottom of each 2 inner wall of ventilation hole Block 3, two corresponding limited blocks 3 are symmetrically distributed in the top and bottom of 2 inner wall of ventilation hole, and between two limited blocks 3 Distance is less than the outer diameter of the dust excluding plate 4, and two limited blocks 3 play the role of limit, convenient dust-proofing for the installation of dust excluding plate 4 Plate 4 is mounted on the inside of ventilation hole 2, and what the outside of the limited block 3 was located at the ventilation hole 2 is internally provided with dust excluding plate 4, institute It states to be located above and below the ventilation hole 2 in cabinet body 1 and is provided with regulating device 5, regulating device 5 is convenient to dust-proof Plate 4 mounts and dismounts, and easy to operate, easy to use, cleaning and replacement after the 4 long-time use of convenient dust-proofing plate avoid dust-proof 4 long-time of plate influences ventilation and heat dissipation effect inside cabinet body 1 using rear dust stratification, ensures the using effect of dust excluding plate 4, To improve the dust-proof effect of cabinet body 1, the top of the cabinet body 1 is provided with dust guard 6, and dust guard 6 is being protected While hindering the ventilation effect and heat dissipation effect at the top of cabinet body 1, have the effect of it is dust-proof, while the installation of dustproof construction with Easy removal, it is easy to operate, it or else needs to be removed using when dustproof construction, accelerate inside cabinet body 1 Heat dissipation effect, and the top of cabinet body 1 is located at the outside of the dust guard 6 and offers mounting groove 7, mounting groove 7 it is interior Portion is provided with mounting hole compatible with installation bolt 9, and mounting hole compatible with bolt 9 is provided on mounting plate 10, Mounting hole inside mounting groove 7 is adapted with the mounting hole on mounting plate 10, facilitates mounting plate 10 to be mounted on by installing bolt 9 The inside of mounting groove 7, so that the installation and removal between mounting plate 10 and mounting groove 7, thus conveniently to air draft box 12 and row Equipment inside wind box 12 is mounted on the top of mounting groove 7 or removes from the top of mounting groove 7, is located in the cabinet body 1 The side of the mounting groove 7 offers ash removing opening 8, and ash removing opening 8 is tipper, and the one end of ash removing opening 8 far from mounting groove 7 is low In ash removing opening 8 close to the side of mounting groove 7, the cleaning and exclusion of the dust inside mounting groove 7, the mounting groove 7 are conveniently fallen into Be internally provided with installation bolt 9, and the inside of mounting groove 7 is fixedly installed with mounting plate 10, institute by the installation bolt 9 The top for stating mounting plate 10 is fixedly connected with connecting tube 11,7 annular grooves of mounting groove, 10 annular slabs of mounting plate, mounting plate 10 It being adapted between mounting groove 7, the inside of connecting tube 11 is interconnected by the inside of dust guard 6 and cabinet body 1, and The top of connecting tube 11 and the bottom of the blower 13 inside air draft box 12 are interconnected, and the top of the connecting tube 11 is fixedly connected There is air draft box 12, the bottom of 12 inner wall of air draft box is fixedly connected with blower 13, and the bottom of air draft box 12 is hollow structure, Blower 13 external power supply and control switch when in use, and can control by control switch the starting and closing of blower 13, Cabinet is drawn up by the inside of the bottom of air-exhausting duct 15, the inside of connecting tube 11 and dust guard 6 after blower 13 starts Air inside ontology 1, the air after extraction are discharged by the air-exhausting duct 15 at the top of 12 two sides of air draft box, can by blower 13 To accelerate the air flowing inside cabinet body 1, to accelerate the heat dissipation effect inside cabinet body 1, cabinet is effectively ensured The stability and safety that ontology 1 is run under hotter environment, and and the two sides of 12 inner wall of air draft box between be located at institute The top for stating blower 13 is provided with accessory plate 14, and the top of the accessory plate 14 is inclined structure, when by blower 13 to machine When the inside of cabinet ontology 1 carries out the cleaning of dust, inclined accessory plate 14 can effectively avoid blower 13 when to up-draught, The part dust of carrying falls into the two sides for being internally located at the blower 13 of air draft box 12, and dust is avoided to fall into inside air draft box 12 Dead angle at, ensure the convenience that uses of air draft box 12, easy cleaning and maintenance, the two sides of the air draft box 12 are provided with row Air hose 15, the dust excluding plate 4 include antidusting layer 41 and moisture resistance layer 42, and the antidusting layer 41 is mainly Air Filter preparation, described anti- Damp layer 42 is mainly moisture wicking material preparation, and the inside of moisture resistance layer 42 is porous structure, and antidusting layer 41 can effectively be kept away Exempt from the inside that dust enters cabinet body 1, moisture resistance layer 42 can most of moisture in effective draw air, in moisture resistance layer 42 The porous left and right side for making moisture resistance layer that portion offers is hollow structure, can effectively improve the penetrating of moisture resistance layer 42 Property, it ensures the 1 normal ventilation effect in inside of cabinet body, is influenced when cabinet body 1 being avoided to work in a humidity environment moist Air impact cabinet body 1 normal operation, ensure 1 internal electric equipment of cabinet body safety in utilization, can be applicable in In moist environment, the regulating device 5 includes regulating tank 51 and adjustment hole 52, and the regulating tank 51 is opened in the cabinet sheet It is located at the side of the ventilation hole 2 on body 1, the adjustment hole 52, which is set in the cabinet body 1, is located at the regulating tank 51 Outside, and the inside of the inside of adjustment hole 52 and the regulating tank 51 is interconnected, the inside setting of the regulating tank 51 There is slide bar 53, movable plate 54 is slidably connected on the slide bar 53, positioning plate 55 is fixedly connected on the movable plate 54, it is described The side of positioning plate 55 is located in the cabinet body 1 through the side of 51 inner wall of regulating tank and extends to the adjustment hole 52 inside, and it is the structure of arc, the movable plate that positioning plate 55, which extends to the side of 52 interior surface of adjustment hole, 54 sides far from the positioning plate 55 are fixedly connected with retaining spring 56, and the side of movable plate 54 is fixedly connected with adjusting One end of axis 57, the adjustment axis 57 passes through the adjustment hole 52 and extends to the inside of the adjustment hole 52, the adjusting dress It sets there are four 5 settings, and two regulating devices 5 are adapted with a ventilation hole 2, two regulating devices 5 are symmetrical It is set to above and below the ventilation hole 2, the outside of positioning plate 55 is the structure of arc, is led to when dust excluding plate 4 needs to be packed into When the inside of air holes 2, it is only necessary to the inside of ventilation hole 2 press dust excluding plate 4, the surface of dust excluding plate 4 preferentially with two positioning plates 55 arc face contact, and when pressing dust excluding plate 4, two positioning plates 55 under the action of arcwall face automatic stress to two sides The inside of regulating tank 51 pack up, the installation of convenient dust-proofing plate 4 is fixed while the surface of dust excluding plate 4 and limited block 3 contacts The surface of position plate 55 is separated with the surface of dust excluding plate 4, and positioning plate 55 resets under the action of retaining spring 56, and when two sides When the recovery of positioning plate 55 to initial position, the spacing between two positioning plates 55 is less than the size of dust excluding plate 4, and positioning plate 55 Non- arcwall face and dust excluding plate 4 surface between gap be less than 1cmm, ensure dust excluding plate 4 install after stability, need to dismantle When dust excluding plate 4, by pushing two adjustment axis 57 of two sides, the movable plate 54 of the 57 synchronous drive two sides of adjustment axis of two sides is moved Dynamic, the movable plate 54 of two sides mobile adjusting stable on the slide bar 53 of two sides, movable plate 54 drives in the process of moving Positioning plate 55 is adjusted in synchronism, and the positioning plate 55 of two sides synchronizes the inside for being located remotely from each other and gradually taking in regulating tank 51, when two sides When positioning plate 55 takes in the inside of regulating tank 51 completely, it can be removed from the inside of adjustment hole 52 by dust excluding plate 4, side easy to operate Just, so that the disassembly and replacement of dust excluding plate 4 are convenient, the dust guard 6 includes dedusting hole 61, and the dedusting hole 61 is set to institute State the top of cabinet body 1, and dedusting hole 61 is internally provided with stop collar 62, the inner surface of the dedusting hole 61 is located at institute The top for stating stop collar 62 is inner threaded surface, and the top for being internally located at the stop collar 62 of dedusting hole 61 is provided with connection The outer surface of ring 63, the connection ring 63 is external screw thread face, and the inside of connection ring 63 is fixedly connected with antidusting net 64, antidusting Net 64 is mounted in connection ring 63, facilitates antidusting net 64 to be mounted on the inside of dedusting hole 61, while dedusting hole by connection ring 63 61 can be stable the top for being mounted on stop collar 62,.

In use, antidusting layer 41 can effectively avoid dust from entering the inside of cabinet body 1, moisture resistance layer 42 can be effective Draw air in most of moisture, the porous left and right side for making moisture resistance layer offered inside moisture resistance layer 42 is hollow Structure, can effectively improve the permeability of moisture resistance layer 42, ensure the 1 normal ventilation effect in inside of cabinet body, avoid machine Wet air is influenced when cabinet ontology 1 works in a humidity environment influences the normal operation of cabinet body 1, ensures cabinet body The safety in utilization of 1 internal electric equipment can be suitable for moist environment, when dust excluding plate 4 needs to be packed into the inside of ventilation hole 2 When, it is only necessary to dust excluding plate 4 is pressed to the inside of ventilation hole 2, arcwall face of the surface of dust excluding plate 4 preferentially with two positioning plates 55 connects Touching, and when pressing dust excluding plate 4, two positioning plates 55 regulating tank 51 of automatic stress to two sides under the action of arcwall face Inside is packed up, the installation of convenient dust-proofing plate 4, while the surface of dust excluding plate 4 and limited block 3 contacts, the surface of positioning plate 55 It is separated with the surface of dust excluding plate 4, positioning plate 55 resets under the action of retaining spring 56, and when the positioning plate 55 of two sides restores When to initial position, the spacing between two positioning plates 55 is less than the size of dust excluding plate 4, and the non-arcwall face of positioning plate 55 with Gap is less than 1cmm between the surface of dust excluding plate 4, ensures the stability after dust excluding plate 4 is installed, and when needing to dismantle dust excluding plate 4, leads to Two adjustment axis 57 for pushing two sides are crossed, the movable plate 54 of the 57 synchronous drive two sides of adjustment axis of two sides is mobile, the activity of two sides The mobile adjusting stable on the slide bar 53 of two sides of plate 54, movable plate 54 drive the same step of positioning plate 55 in the process of moving Section, the positioning plate 55 of two sides synchronize the inside for being located remotely from each other and gradually taking in regulating tank 51, when the positioning plate 55 of two sides is received completely When entering the inside of regulating tank 51, it can be removed from the inside of adjustment hole 52 by dust excluding plate 4, it is simple to operate, so that dust excluding plate 4 Disassembly and replacement it is convenient, pass through the bottom of air-exhausting duct 15, the inside of connecting tube 11 and dust guard 6 after blower 13 starts Inside is drawn up the air inside cabinet body 1, the air-exhausting duct 15 that the air after extraction passes through the top of 12 two sides of air draft box Discharge can accelerate the flowing of the air inside cabinet body 1 by blower 13, to accelerate the heat dissipation effect inside cabinet body 1 Fruit, the effective stability and safety for ensureing cabinet body 1 and being run under hotter environment.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification, It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only It is limited by claims and its full scope and equivalent.

Claims (10)

1. a kind of from cooling shield machine cabinet dust guard, including cabinet body (1), it is characterised in that: the cabinet body (1) Two sides be provided with ventilation hole (2), the inside of two ventilation holes (2) is provided with limited block (3), the limited block (3) outside is located at being internally provided with dust excluding plate (4) for the ventilation hole (2), is located at the ventilation on the cabinet body (1) It is provided with above and below hole (2) regulating device (5), is provided with dust guard (6) at the top of the cabinet body (1), And the top of cabinet body (1), which is located on the outside of the dust guard (6), to be offered mounting groove (7), the cabinet body (1) The upper side positioned at the mounting groove (7) offers ash removing opening (8).

2. according to claim 1 a kind of from cooling shield machine cabinet dust guard, it is characterised in that: the mounting groove (7) bolt (9) are installed in be internally provided with, and the inside of mounting groove (7) is fixedly installed with peace by the installation bolt (9) Loading board (10).

3. according to claim 2 a kind of from cooling shield machine cabinet dust guard, it is characterised in that: the mounting plate (10) it is fixedly connected at the top of connecting tube (11), is fixedly connected with air draft box (12) at the top of the connecting tube (11), it is described The bottom of air draft box (12) inner wall is fixedly connected with blower (13), and is located at the wind between the two sides of air draft box (12) inner wall It is provided with above machine (13) accessory plate (14), the top of the accessory plate (14) is inclined structure, the air draft box (12) Two sides be provided with air-exhausting duct (15).

4. according to claim 1 a kind of from cooling shield machine cabinet dust guard, it is characterised in that: the dust excluding plate It (4) include antidusting layer (41) and moisture resistance layer (42), the antidusting layer (41) is mainly Air Filter preparation, and the moisture resistance layer (42) is main It to be prepared for moisture wicking material, and the inside of moisture resistance layer (42) is porous structure.

5. according to claim 1 a kind of from cooling shield machine cabinet dust guard, it is characterised in that: the regulating device It (5) include regulating tank (51) and adjustment hole (52), the regulating tank (51), which is opened on the cabinet body (1), is located at described lead to The side of air holes (2), the adjustment hole (52) are set to the outside for being located at the regulating tank (51) on the cabinet body (1), And the inside of the inside of adjustment hole (52) and the regulating tank (51) is interconnected.

6. according to claim 5 a kind of from cooling shield machine cabinet dust guard, it is characterised in that: the regulating tank (51) be internally provided with slide bar (53), slidably connects movable plate (54) on the slide bar (53), on the movable plate (54) It is fixedly connected with positioning plate (55), the side of the positioning plate (55) is located at described through the side of the regulating tank (51) inner wall In cabinet body (1) and the inside of the adjustment hole (2) is extended to, and positioning plate (55) extends in the adjustment hole (2) The side on portion surface is the structure of arc.

7. according to claim 6 a kind of from cooling shield machine cabinet dust guard, it is characterised in that: the movable plate (54) side far from the positioning plate (55) is fixedly connected with retaining spring (56), and the fixed company in side of movable plate (54) It is connected to adjustment axis (57), one end of the adjustment axis (57) passes through the adjustment hole (52) and extends to the adjustment hole (52) It is internal.

8. according to claim 1 a kind of from cooling shield machine cabinet dust guard, it is characterised in that: the regulating device (5) there are four setting, and two regulating devices (5) are adapted with a ventilation hole (2), two regulating devices (5) it is symmetrically disposed on above and below the ventilation hole (2).

9. according to claim 1 a kind of from cooling shield machine cabinet dust guard, it is characterised in that: the dust guard It (6) include dedusting hole (61), the dedusting hole (61) is set to the top of the cabinet body (1), and dedusting hole (61) It is internally provided with stop collar (62).

10. according to claim 9 a kind of from cooling shield machine cabinet dust guard, it is characterised in that: the dedusting hole (61) top that inner surface is located at the stop collar (62) is inner threaded surface, and dedusting hole (61) is internally located at the limit It is provided with connection ring (63) above position ring (62), the outer surface of the connection ring (63) is external screw thread face, and connection ring (63) inside is fixedly connected with antidusting net (64).