CN112601402A - Dynamic dustproof ventilation device for PLC control cabinet - Google Patents
Dynamic dustproof ventilation device for PLC control cabinet Download PDFInfo
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- CN112601402A CN112601402A CN202011550672.1A CN202011550672A CN112601402A CN 112601402 A CN112601402 A CN 112601402A CN 202011550672 A CN202011550672 A CN 202011550672A CN 112601402 A CN112601402 A CN 112601402A
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- control cabinet
- dust
- air
- air inlet
- ventilation device
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0213—Venting apertures; Constructional details thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a dynamic dustproof ventilation device for a PLC (programmable logic controller) control cabinet, which belongs to the field of control cabinets and comprises a control cabinet body, wherein air inlet boxes are embedded in the side walls of the two sides of the lower end of the control cabinet body, dust in the air is captured by a dust collection ball to remove dust, the dust collection ball is rotated to scrape the dust on the dust collection ball, the self-cleaning purpose is achieved, the dust removal effect is effectively improved, an air outlet of the control cabinet is intermittently opened by utilizing a rotating air exchanger, the external dust can be prevented from being poured back by matching with the rising effect of hot air, the dustproof effect is further improved, heat can be sucked from the inside of the control cabinet in the rotating process of the air exchanger, and is exchanged with cold air outside, the heat dissipation effect of the control cabinet is effectively improved, and compared with the prior art, the dynamic dustproof ventilation device for the PLC control cabinet has better dustproof effect, Ventilation and heat dissipation.
Description
Technical Field
The invention relates to the field of control cabinets, in particular to a dynamic dustproof ventilation device for a PLC (programmable logic controller) control cabinet.
Background
The control cabinet is formed by assembling switch equipment, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the electrical wiring requirements, and the arrangement of the control cabinet meets the requirements of normal operation of an electric power system, is convenient to overhaul and does not endanger the safety of people and surrounding equipment. In normal operation, the circuit can be switched on or off by means of a manual or automatic switch. When the fault or abnormal operation occurs, the circuit is cut off or an alarm is given by the aid of the protective electric appliance. The measuring instrument can display various parameters in operation, and can also adjust some electrical parameters to prompt or send out signals for deviation from normal working state. It is commonly used in various power generation, distribution and transformation substations.
The PLC control cabinet has the protection functions of overload, short circuit, open-phase protection and the like. It has compact structure, stable operation and complete functions. The intelligent control system can be combined according to the size of an actual control specification, not only can realize single-cabinet automatic control, but also can realize that a plurality of cabinets form a Distributed Control System (DCS) through an industrial Ethernet or an industrial field bus network. The PLC control cabinet can adapt to industrial automation control occasions of various sizes. The method is widely applied to industries such as electric power, metallurgy, chemical industry, papermaking and environmental protection sewage treatment.
Although PLC switch board equipment is safe and reliable, the stable performance, it is multiple functional, some problems also can appear, for example inside easy collection grey problem, if do not regularly clear up inside, there is the dust to pile up, can cause equipment to appear crashing, the procedure is chaotic or break down the trouble appears, especially more will often clear up in the great operational environment of dust volume, this work load that has increaseed maintainer undoubtedly, also can cause the raise dust during the deashing, harm personnel's health and air circumstance.
Disclosure of Invention
1. Technical problem to be solved
The invention aims to solve the problems in the prior art and provides a dynamic dustproof ventilation device for a PLC control cabinet.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A dynamic dustproof ventilation device for a PLC control cabinet comprises a control cabinet body, wherein air inlet boxes are inlaid on the side walls of the two sides of the lower end of the control cabinet body, the inner wall of each air inlet box is fixedly connected with a first mounting plate, a plurality of circular air inlet holes are formed in the first mounting plate at equal intervals, each circular air inlet hole is rotatably connected with a dust collection ball, the inner wall of each first mounting plate is rotatably connected with a plurality of rotating shafts, each rotating shaft is used for serially connecting all dust collection balls in a row, one side of each first mounting plate is provided with a driving mechanism matched with the rotating shafts, the side wall of each first mounting plate is fixedly connected with a plurality of dust removal pieces matched with the dust collection balls, the side wall of the upper end of the control cabinet body is inlaid with an air outlet box, the inner wall of the air outlet box is fixedly connected with a second mounting plate, and the side wall of the second mounting plate is rotatably connected with a, and the lateral wall of second mounting panel offers the exhaust vent that matches with air exchanger, one side of second mounting panel is provided with the actuating mechanism who matches with air exchanger equally.
Further, the air exchanger comprises a connecting rod, both ends of the connecting rod are fixedly connected with exchange balls, the connection mode of the air exchanger and the second mounting plate is the same as that of the dust suction balls, and the rotation center of the air exchanger is the central point of the connecting rod.
Further, the exchange ball comprises episphere and lower hemisphere, the episphere is the solid sphere, and under off-working state, the connecting rod is the horizontality, and the episphere can prevent the dust at this moment to fall into this internally of switch board, the hollow out construction that has the cavity is opened for inside to the lower hemisphere, the cavity inner wall fixedly connected with of lower hemisphere has a plurality of heat transfer pieces.
Further, the heat transfer piece includes the bracing piece, a plurality of heat conduction silk of lateral wall fixedly connected with of bracing piece, and a plurality of heat-absorbing fins of equal fixedly connected with on every heat conduction silk, the inside heat of switch board body is absorbed to the heat-absorbing fin, carries out heat exchange with cold air after to the outside, realizes radiating effect.
Further, the dust absorption ball includes the hollow spherical shell, the surface parcel of hollow spherical shell has the adsorptivity silica gel layer, and the adsorption efficiency on adsorptivity silica gel layer is used for adsorbing the dust in the air, realizes removing dust.
Furthermore, actuating mechanism includes with every pivot fixed connection's sprocket, and is a plurality of connect through the chain between the sprocket, actuating mechanism still includes the driving motor who matches with the chain, and driving motor provides power for dust absorption ball and air exchanger's rotation.
Furthermore, the ash removal part comprises a fixed block, the side wall of the fixed block, which is close to the outer surface of the dust collection ball, is fixedly connected with an ash removal strip, the ash removal strip is attached to the outer surface of the dust collection ball, and the ash removal strip scrapes off dust when the dust collection ball rotates.
Further, the air inlet box is connected with the side wall of the control cabinet body through the magnet, so that the air inlet box can be conveniently detached for maintenance, and the lower end side wall of the air inlet box far away from the first mounting plate is provided with a dust cleaning opening, so that dust can be cleaned conveniently.
Further, the lateral wall that first mounting panel was kept away from to the box that admits air is provided with the ventilation filter screen, for removing dust increases one guarantee, and the ventilation filter screen passes through magnet and the interior wall connection of box that admits air, is for the convenient change ventilation filter screen.
Furthermore, the range of the gap between the dust collection ball and the circular air inlet hole is-millimeter, external air enters the control cabinet body through the gap between the dust collection ball and the circular air inlet hole, and the gap cannot be too large in order to capture dust by the dust collection ball.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) this scheme comes the dust in the seizure air through the dust absorption ball to remove dust, make the dust on it by scraping through letting the dust absorption ball rotation, reach the mesh of oneself's clearance, effectively improve dust removal effect, utilize rotatory air exchanger to come the air outlet of intermittent type nature opening the switch board, cooperation hot-air's ascending effect, can prevent that outside dust from pouring in, further improve dustproof effect, and the rotatory in-process of air exchanger can follow the inside heat of siphoning away of switch board, and exchange with cold air outside, the radiating effect of switch board has effectively been improved, compared with the prior art, this scheme has better dustproof, ventilate, radiating effect.
(2) The air exchanger comprises a connecting rod, the two ends of the connecting rod are fixedly connected with exchange balls, the connection mode of the air exchanger and the second mounting plate is the same as that of the dust absorption balls, and the rotation center of the air exchanger is the central point of the connecting rod.
(3) The switching ball comprises episphere and lower hemisphere, and the episphere is the solid sphere, and under the out-of-operation state, the connecting rod is the horizontality, and the episphere can prevent the dust at this moment to fall into this internal in the switch board in the top, and the lower hemisphere is inside to open the hollow out construction that has the cavity, and the cavity inner wall fixedly connected with of lower hemisphere has a plurality of heat transfer pieces.
(4) The heat transfer piece includes the bracing piece, and a plurality of heat conduction silk of lateral wall fixedly connected with of bracing piece, and a plurality of heat sinks of equal fixedly connected with on every heat conduction silk, and the heat sink absorbs the inside heat of switch board body, carries out heat exchange with cold air after to the outside, realizes radiating effect.
(5) The dust absorption ball comprises a hollow ball shell, the outer surface of the hollow ball shell is wrapped with an adsorptive silica gel layer, and the adsorptive property of the adsorptive silica gel layer is used for adsorbing dust in air to realize dust removal.
(6) The driving mechanism comprises chain wheels fixedly connected with each rotating shaft, the chain wheels are connected through chains, the driving mechanism further comprises a driving motor matched with the chains, and the driving motor provides power for the rotation of the dust suction balls and the air exchanger.
(7) The dust removing part comprises a fixing block, the side wall of the fixing block, which is close to the outer surface of the dust collection ball, is fixedly connected with a dust sweeping strip, the dust sweeping strip is attached to the outer surface of the dust collection ball, and the dust sweeping strip scrapes off dust when the dust collection ball rotates.
(8) The air inlet box is connected with the side wall of the control cabinet body through the magnet, so that the air inlet box can be conveniently detached for maintenance, and the lower end side wall of the air inlet box, which is far away from the first mounting plate, is provided with a dust cleaning port, so that dust can be cleaned conveniently.
(9) The lateral wall that the first mounting panel was kept away from to the box that admits air is provided with the ventilation filter screen, for the increase of dust removal one guarantee, and the ventilation filter screen passes through magnet and the interior wall connection of box that admits air, is for the convenience change ventilation filter screen.
(10) The range of the gap between the dust suction ball and the circular air inlet hole is-millimeter, external air enters the control cabinet body from the gap between the dust suction ball and the circular air inlet hole, and the gap cannot be too large in order to capture dust by the dust suction ball.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a front view of the first mounting plate of the present invention;
FIG. 4 is a schematic top view of the structure of FIG. 3;
FIG. 5 is a schematic diagram of the right side view of FIG. 3;
FIG. 6 is a schematic cross-sectional view of the dust-collecting ball of the present invention;
FIG. 7 is a schematic view of the closed state of the air exchanger according to the present invention;
FIG. 8 is a schematic view of the air exchanger according to the present invention in a rotated state;
FIG. 9 is a schematic cross-sectional view of an air exchanger according to the present invention;
fig. 10 is a front view schematically showing the structure of a heat transfer member of the present invention.
The reference numbers in the figures illustrate:
the device comprises a control cabinet body 1, an air inlet box 2, a first mounting plate 3, a circular air inlet hole 301, a dust suction ball 4, a hollow spherical shell 401, an adsorptive silica gel layer 402, a driving mechanism 5, a sprocket 501, a chain 502, a driving motor 503, a dust cleaning part 6, a fixed block 601, a dust cleaning strip 602, an air outlet box 7, a second mounting plate 8, an air exchanger 9, a connecting rod 901, an exchange ball 902, an upper hemisphere 9021, a lower hemisphere 9022, a heat transfer part 10, a supporting rod 1001, a heat conducting wire 1002, a heat absorbing plate 1003 and a ventilation filter screen 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
referring to fig. 1-10, a dynamic dustproof ventilation device for a PLC control cabinet comprises a control cabinet body 1, referring to fig. 1-2, air inlet boxes 2 are embedded in side walls of both sides of the lower end of the control cabinet body 1, the air inlet boxes 2 are connected with the side walls of the control cabinet body 1 through magnets, so that disassembly and maintenance are convenient, dust cleaning ports are formed in side walls of the lower end of the air inlet boxes 2, which are far away from a first mounting plate 3, for convenience of dust cleaning, the inner wall of the air inlet boxes 2 is fixedly connected with the first mounting plate 3, ventilation filter screens 11 are arranged on the side walls of the air inlet boxes 2, which are far away from the first mounting plate 3, so that one guarantee is added for dust cleaning, the ventilation filter screens 11 are connected with the inner wall of the air inlet boxes 2 through magnets, for convenience of replacing the ventilation filter screens 11, a plurality of circular air inlet holes 301 are formed at equal intervals on the first mounting plate 3, dust, the range of the gap between the dust collection ball 4 and the circular air inlet 301 is 2-3 mm, external air enters the control cabinet body 1 through the gap between the dust collection ball 4 and the circular air inlet 301, and in order to enable the dust collection ball 4 to capture dust, the gap cannot be too large, please refer to fig. 6, the dust collection ball 4 comprises a hollow ball shell 401, the outer surface of the hollow ball shell 401 is wrapped with an adsorptive silica gel layer 402, the adsorptive property of the adsorptive silica gel layer 402 is used for adsorbing dust in air to realize dust removal, the inner wall of the first mounting plate 3 is rotatably connected with a plurality of rotating shafts, and each rotating shaft connects all the dust collection balls 4 in a row in series;
referring to fig. 3-5, a driving mechanism 5 matched with the rotating shafts is arranged on one side of the first mounting plate 3, the driving mechanism 5 includes a chain wheel 501 fixedly connected with each rotating shaft, the chain wheels 501 are connected through a chain 502, the driving mechanism 5 further includes a driving motor 503 matched with the chain 502, the driving motor 503 provides power for the rotation of the dust collection ball 4 and the air exchanger 9, the side wall of the first mounting plate 3 is fixedly connected with a plurality of ash removal members 6 matched with the dust collection ball 4, each ash removal member 6 includes a fixing block 601, the side wall of the fixing block 601 close to the outer surface of the dust collection ball 4 is fixedly connected with an ash removal strip 602, the ash removal strip 602 is attached to the outer surface of the dust collection ball 4, and when the dust collection ball 4 rotates, the ash removal strip 602 scrapes dust;
referring to fig. 7-10, an air outlet box 7 is embedded in a side wall of an upper end of a control cabinet body 1, an inner wall of the air outlet box 7 is fixedly connected with a second mounting plate 8, a side wall of the second mounting plate 8 is rotatably connected with a plurality of air exchangers 9, each air exchanger 9 includes a connecting rod 901, both ends of each connecting rod 901 are fixedly connected with exchange balls 902, each exchange ball 902 is composed of an upper hemisphere 9021 and a lower hemisphere 9022, each upper hemisphere 9021 is a solid sphere, each connecting rod 901 is in a horizontal state in an inoperative state, at this time, each upper hemisphere 9021 is above and can prevent dust from falling into the control cabinet body 1, each lower hemisphere 9022 is of a hollow structure with a cavity inside, a plurality of heat transfer members 10 are fixedly connected to an inner wall of each cavity of each lower hemisphere 9022, each heat transfer member 10 includes a support rod 1001, a plurality of heat conduction wires 1002 are fixedly connected to the side wall of the support rod 1001, the heat absorbing sheet 1003 absorbs heat inside the control cabinet body 1, and exchanges heat with cold air after reaching the outside to achieve a heat dissipation effect, the connection mode of the air exchanger 9 and the second mounting plate 8 is the same as that of the dust collection ball 4, the rotation center of the air exchanger 9 is the central point of the connecting rod 901, an air outlet matched with the air exchanger 9 is formed in the side wall of the second mounting plate 8, and the driving mechanism 5 matched with the air exchanger 9 is also arranged on one side of the second mounting plate 8.
When the scheme is in use, due to the action of air convection, external cold air enters the control cabinet body 1 from the air inlet box 2, when the cold air passes through the first mounting plate 3, the dust absorption ball 4 absorbs dust in the cold air to remove dust, the ventilation filter screen 11 provides a guarantee for dust removal, the dust absorption ball 4 rotates after the driving mechanism 5 is started, the dust bar 602 scrapes off the dust when the dust absorption ball 4 rotates, the purpose of self-cleaning is achieved, the dust removal effect is effectively improved, hot air in the control cabinet body 1 rises, the hot air is intermittently discharged along with the continuous rotation of the air exchanger 9, the dust can be effectively prevented from entering the control cabinet body 1 due to the rising action of the hot air, the heat transfer piece 10 takes away a part of heat in the control cabinet body 1 while the air exchanger 9 rotates, and the heat exchange is carried out with the cold air after the hot air goes out, the heat dissipation effect is realized.
This scheme comes the dust in the seizure air through the dust absorption ball to remove dust, make the dust on it by scraping through letting the dust absorption ball rotation, reach the mesh of oneself's clearance, effectively improve dust removal effect, utilize rotatory air exchanger to come the air outlet of intermittent type nature opening the switch board, cooperation hot-air's ascending effect, can prevent that outside dust from pouring in, further improve dustproof effect, and the rotatory in-process of air exchanger can follow the inside heat of siphoning away of switch board, and exchange with cold air outside, the radiating effect of switch board has effectively been improved, compared with the prior art, this scheme has better dustproof, ventilate, radiating effect.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the equivalent replacement or change according to the technical solution and the modified concept of the present invention should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a PLC is dustproof ventilation unit of developments for switch board, includes switch board body (1), its characterized in that: the air inlet box (2) is inlaid in the side walls of the two sides of the lower end of the control cabinet body (1), a first mounting plate (3) is fixedly connected to the inner wall of the air inlet box (2), a plurality of circular air inlet holes (301) which are arranged at equal intervals are formed in the first mounting plate (3), each circular air inlet hole (301) is internally and rotatably connected with a dust suction ball (4), a plurality of rotating shafts are rotatably connected to the inner wall of the first mounting plate (3), all the dust suction balls (4) in a row are connected in series in each rotating shaft, a driving mechanism (5) matched with the rotating shafts is arranged on one side of the first mounting plate (3), a plurality of dust cleaning pieces (6) matched with the dust suction balls (4) are fixedly connected to the side wall of the first mounting plate (3), an air outlet box (7) is inlaid in the side wall of the upper end of the control cabinet body (1), and a second mounting plate (8) is fixedly connected to the inner wall of the air outlet, the lateral wall of second mounting panel (8) rotates and is connected with a plurality of air exchanger (9), and the exhaust vent that matches with air exchanger (9) is seted up to the lateral wall of second mounting panel (8), one side of second mounting panel (8) is provided with actuating mechanism (5) that match with air exchanger (9) equally.
2. The dynamic dustproof ventilation device for the PLC control cabinet according to claim 1, characterized in that: the air exchanger (9) comprises a connecting rod (901), and both ends of the connecting rod (901) are fixedly connected with exchange balls (902).
3. The dynamic dustproof ventilation device for the PLC control cabinet according to claim 2, characterized in that: the exchange ball (902) is composed of an upper hemisphere (9021) and a lower hemisphere (9022), the upper hemisphere (9021) is a solid ball, the lower hemisphere (9022) is of a hollow structure with a cavity formed inside, and the inner wall of the cavity of the lower hemisphere (9022) is fixedly connected with a plurality of heat transfer elements (10).
4. The dynamic dustproof ventilation device for the PLC control cabinet according to claim 3, characterized in that: the heat transfer member (10) comprises a support rod (1001), the side wall of the support rod (1001) is fixedly connected with a plurality of heat conducting wires (1002), and each heat conducting wire (1002) is fixedly connected with a plurality of heat absorbing sheets (1003).
5. The dynamic dustproof ventilation device for the PLC control cabinet according to claim 1, characterized in that: the dust collection ball (4) comprises a hollow ball shell (401), and an adsorptive silica gel layer (402) is wrapped on the outer surface of the hollow ball shell (401).
6. The dynamic dustproof ventilation device for the PLC control cabinet according to claim 1, characterized in that: the driving mechanism (5) comprises chain wheels (501) fixedly connected with each rotating shaft, the chain wheels (501) are connected through chains (502), and the driving mechanism (5) further comprises a driving motor (503) matched with the chains (502).
7. The dynamic dustproof ventilation device for the PLC control cabinet according to claim 1, characterized in that: the ash removal part (6) comprises a fixing block (601), and the side wall of the outer surface, close to the dust suction ball (4), of the fixing block (601) is fixedly connected with an ash removal strip (602).
8. The dynamic dustproof ventilation device for the PLC control cabinet according to claim 1, characterized in that: the air inlet box (2) is connected with the side wall of the control cabinet body (1) through a magnet, and the lower end side wall of the air inlet box (2) far away from the first mounting plate (3) is provided with a dust removing opening.
9. The dynamic dustproof ventilation device for the PLC control cabinet according to claim 1, characterized in that: the lateral wall of first mounting panel (3) is kept away from in air inlet box (2) is provided with ventilation filter screen (11), and ventilation filter screen (11) pass through the inner wall connection of magnet with air inlet box (2).
10. The dynamic dustproof ventilation device for the PLC control cabinet according to claim 1, characterized in that: the range of the gap between the dust suction ball (4) and the circular air inlet hole (301) is 2-3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011550672.1A CN112601402A (en) | 2020-12-24 | 2020-12-24 | Dynamic dustproof ventilation device for PLC control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011550672.1A CN112601402A (en) | 2020-12-24 | 2020-12-24 | Dynamic dustproof ventilation device for PLC control cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN112601402A true CN112601402A (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011550672.1A Pending CN112601402A (en) | 2020-12-24 | 2020-12-24 | Dynamic dustproof ventilation device for PLC control cabinet |
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| Country | Link |
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| CN (1) | CN112601402A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113727551A (en) * | 2021-08-09 | 2021-11-30 | 上海德翼通信科技有限公司 | Network engineering is with storing cabinet with anti-interference structure |
| CN114423209A (en) * | 2022-01-13 | 2022-04-29 | 日照钢铁控股集团有限公司 | Electronic information automation control cabinet |
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Application publication date: 20210402 |