CN112351647B - Cooling device of 5G baseband pool - Google Patents
Cooling device of 5G baseband pool Download PDFInfo
- Publication number
- CN112351647B CN112351647B CN202011176737.0A CN202011176737A CN112351647B CN 112351647 B CN112351647 B CN 112351647B CN 202011176737 A CN202011176737 A CN 202011176737A CN 112351647 B CN112351647 B CN 112351647B
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- Prior art keywords
- base station
- station antenna
- pipe
- ventilation
- antenna shell
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- 238000001816 cooling Methods 0.000 title claims abstract description 25
- 238000009423 ventilation Methods 0.000 claims abstract description 76
- 238000007664 blowing Methods 0.000 claims abstract description 18
- 230000017525 heat dissipation Effects 0.000 claims abstract description 14
- 238000005096 rolling process Methods 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims abstract description 9
- 239000000428 dust Substances 0.000 claims description 43
- 238000004140 cleaning Methods 0.000 claims description 12
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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- B08B1/12—
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/035—Cooling of active equipments, e.g. air ducts
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/11—Protection against environment
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/11—Protection against environment
- H04Q1/114—Protection against environment flooding protection, e.g. using water proof provision
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
Abstract
The invention discloses a cooling device for a 5G baseband pool, which comprises a base station antenna shell, wherein a fan is arranged at the top end of the base station antenna shell, a rain baffle is arranged on the outer side of the base station antenna shell, a heat dissipation vent hole is formed in the position, close to the rain baffle, of the outer side of the base station antenna shell, and one side of the outer side of the fan is connected with an air supply pipe. According to the invention, through the annular sliding block, the rolling bearing, the ventilation pipe, the annular sliding rail, the blowing pipe, the ventilation pipe, the round hole, the rotating rod, the driving motor and the partition plate, when a plurality of electric elements in the antenna shell of the base station need to be subjected to blowing heat, the blowing pipe can rotate to blow air to the plurality of electric elements so as to achieve the purpose of uniformly blowing air to the plurality of electric elements, and when the ventilation pipe rotates, the blowing pipe and the ventilation pipe rotate through the rolling bearing arranged between the blowing pipe and the ventilation pipe, so that the situation that the blowing pipe and the ventilation pipe deviate in position is avoided, and the cooling efficiency of the base station on the electric elements is improved.
Description
Technical Field
The invention relates to the technical field of 5G base station heat dissipation equipment, in particular to a cooling device of a 5G baseband pool.
Background
The 5G baseband pool, i.e. the 5G base station, is a core device of the 5G network, provides wireless coverage, and implements wireless signal transmission between the wired communication network and the wireless terminal. The architecture and morphology of the base station directly affect how the 5G network is deployed. In the technical standard, the frequency band of 5G is far higher than that of 2G, 3G and 4G networks, and the 5G network mainly works in the frequency band of 3000-5000MHz at present. The base station density of a 5G network will be higher since the higher the frequency, the greater the attenuation in the signal propagation. The transmitting equipment in the 5G base station can generate a large amount of heat during working, if the heat is too large, the equipment is easy to operate slowly, and if the heat is serious, the equipment is easy to damage, so that the antenna shell is generally provided with heat dissipation equipment.
At present, various cooling devices of 5G baseband pools exist in the market, but the positions of the cooling devices are generally fixed and unchangeable, so that a plurality of electric elements in an antenna shell cannot be uniformly cooled, and further the heat dissipation efficiency of the electric elements is poor. Accordingly, those skilled in the art have provided a cooling apparatus for a 5G baseband pool to solve the problems set forth in the background art described above.
Disclosure of Invention
The present invention is directed to a cooling device for 5G baseband pool, which solves the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
a cooling device of a 5G baseband pool comprises a base station antenna shell, wherein a fan is arranged at the top end of the base station antenna shell, a rain baffle is arranged on the outer side of the base station antenna shell, a heat dissipation ventilation hole is formed in the position, close to the rain baffle, of the outer side of the base station antenna shell, one side of the outer side of the fan is connected with an air supply pipe, the other side of the outer side of the fan is connected with an air exhaust pipe, a dust filter screen is arranged inside the heat dissipation ventilation hole, a driving motor is installed at the bottom of the inner side of the base station antenna shell, a partition plate is arranged on the inner side of the base station antenna shell, a ventilation pipe is connected to the top of the inner side of the base station antenna shell, an annular slide rail is arranged at the top of the inner side of the base station antenna shell, annular slide blocks are installed on two sides of the outer side of the ventilation pipe, a rolling bearing is arranged at the top of the outer side of the ventilation pipe, and a plurality of air exhaust pipes are connected to the bottom of the outer side of the ventilation pipe at equal intervals, the round hole has been seted up to the intermediate position on baffle top, driving motor's top is provided with the dwang.
Further, the top of base station antenna housing is connected with the support frame, the top of support frame is connected with the ventilation chamber, the air intake has been seted up to one side of ventilation chamber, electric telescopic handle is installed on the top of ventilation chamber, the ash discharge mouth has been seted up to the bottom of ventilation chamber, the bottom of ventilation chamber is connected with the backup pad, the inboard of ventilation chamber is provided with the dust filter, one side of backup pad is connected with the fly leaf, one side of backup pad is provided with the hinge, spacing spring is installed on the top of backup pad, electric telescopic handle's bottom is provided with the dust removal piece.
Further, the bottom of dwang is connected with driving motor's output shaft, the top of dwang is connected with the outside of ventilation pipe.
Furthermore, the bottom of blast pipe sets up in the inside of antifriction bearing and ventilation pipe, the ventilation pipe passes through antifriction bearing with the blast pipe and rotates to be connected, ventilation pipe and base station antenna shell rotate to be connected through the cooperation of annular slider and annular slide rail.
Furthermore, the one end setting of exhaust column is in the inside of ventilation chamber, the outside of dust removal piece contacts with the surface of dirt filtrating board, electric telescopic handle's the outside is provided with waterproof protective sheath.
Furthermore, the dust removal block is arranged above the movable plate, the movable plate is rotatably connected with the supporting plate through a hinge, the bottom end of the limiting spring is connected with the top end of the supporting plate, and the top end of the limiting spring is connected with the bottom end of the movable plate.
Furthermore, two arc through holes, two have been seted up on the top of baffle be provided with two supporting shoes between the arc through hole, the bottom in the dwang outside is connected with two connecting rods, the top of connecting rod is provided with the cleaning brush.
Further, the connecting rod sets up in the inside of arc through-hole, one side of cleaning brush contacts with the surface in heat dissipation ventilation hole.
Compared with the prior art, the invention has the beneficial effects that:
1. through annular slider, antifriction bearing, the ventilation pipe, annular slide rail, the blowing pipe, the ventilation pipe, the round hole, the dwang, driving motor and baffle, when needing to be the interior a plurality of electric elements of base station antenna shell to blow the fan heat, can make the blowing pipe can rotate and blow wind at a plurality of electric elements, in order to reach the purpose of evenly blowing for a plurality of electric elements, and in the ventilation pipe pivoted time, blowing pipe and ventilation pipe rotate through the antifriction bearing that sets up between it, avoid the condition of position skew to appear in blowing pipe and ventilation pipe, thereby the cooling efficiency of this basic station to electric elements has been improved.
2. Through electric telescopic handle, the ventilation chamber, the air intake, the support frame, a supporting plate, the hinge, spacing spring, the dust exhaust mouth, the fly leaf, strain dirt board and water proof cover, when the fan passes through the exhaust column and airs exhaust, can be convenient filter the dust in the air, avoid these dust to get into in the basic station antenna shell and attached to electrical components's surface, and under the condition that need not the manual work, the dust that will strain dirt board surface long-pending and stay that can be convenient clears up, avoid the dirt efficiency of straining of these dust influence dirt board, thereby improve the clean degree in the basic station antenna shell.
3. Through the baffle, the arc through-hole, driving motor, the dwang, cleaning brush and supporting shoe, driving the ventilation pipe at the dwang and rotating when improving the efficiency of blowing pipe, the dwang also can drive the continuous forward and reverse rotation of two connecting rods for the connecting rod top is connected and constantly removes on the surface of dirt screen with the cleaning brush of dirt screen surface contact, thereby make the dust that the cleaning brush is long-pending on with the dirt screen detach, in order to improve the inside ventilation efficiency of base station antenna shell.
Drawings
FIG. 1 is a schematic structural view of a cooling device for a 5G baseband pool proposed in embodiments 1 and 2;
FIG. 2 is a partial schematic structural view of a blower pipe and a rolling bearing in a cooling device for a 5G base band bath according to embodiment 1;
FIG. 3 is an enlarged view of A in a cooling device for a 5G base band bath proposed in example 1;
FIG. 4 is a partial sectional view of a partition and a support block in the cooling device for a 5G base band bath according to embodiments 1 and 2.
In the figure: 1. a base station antenna housing; 2. a connecting rod; 3. a cleaning brush; 4. a dust filter screen; 5. an annular slider; 6. a dust removal block; 7. a fan; 8. an air supply pipe; 9. a rolling bearing; 10. a vent pipe; 11. an annular slide rail; 12. a blowpipe; 13. a rain shield; 14. a heat dissipation vent; 15. a partition plate; 16. an arc-shaped through hole; 17. rotating the rod; 18. a circular hole; 19. a drive motor; 20. a support block; 21. an electric telescopic rod; 22. a ventilation chamber; 23. an air inlet; 24. a support frame; 25. a support plate; 26. a hinge; 27. a limiting spring; 28. an ash discharge port; 29. a movable plate; 30. an exhaust pipe; 31. a dust filter plate; 32. a waterproof protective sleeve.
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 of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1 to 4, in an embodiment of the present invention, a cooling device for a 5G baseband pool includes a base station antenna housing 1, a blower 7 is disposed at a top end of the base station antenna housing 1, a weather shield 13 is disposed outside the base station antenna housing 1, a heat dissipation vent 14 is disposed outside the base station antenna housing 1 and near the weather shield 13, an air supply pipe 8 is connected to one side of an outside of the blower 7, an exhaust pipe 30 is connected to the other side of the outside of the blower 7, a dust filter 4 is disposed inside the heat dissipation vent 14, a driving motor 19 is disposed at a bottom of an inside of the base station antenna housing 1, a partition 15 is disposed inside the base station antenna housing 1, a ventilation pipe 10 is connected to a top of the inside of the base station antenna housing 1, an annular slide rail 11 is disposed at a top of the inside of the base station antenna housing 1, annular sliders 5 are disposed on both sides of an outside of the ventilation pipe 10, and a rolling bearing 9 is disposed at a top of an outside of the ventilation pipe 10, the bottom of the outer side of the ventilation pipe 10 is connected with a plurality of blowing pipes 12 at equal intervals, a round hole 18 is formed in the middle of the top end of the partition plate 15, and a rotating rod 17 is arranged at the top end of a driving motor 19.
Wherein, the top of base station antenna housing 1 is connected with support frame 24, the top of support frame 24 is connected with ventilation chamber 22, air intake 23 has been seted up to one side of ventilation chamber 22, electric telescopic handle 21 has been installed on the top of ventilation chamber 22, dust exhaust 28 has been seted up to the bottom of ventilation chamber 22, the bottom of ventilation chamber 22 is connected with backup pad 25, the inboard of ventilation chamber 22 is provided with dust filter 31, one side of backup pad 25 is connected with fly leaf 29, one side of backup pad 25 is provided with hinge 26, spacing spring 27 is installed on the top of backup pad 25, the bottom of electric telescopic handle 21 is provided with dust removal piece 6.
Wherein, the bottom of dwang 17 is connected with the output shaft of driving motor 19, and the top of dwang 17 is connected with the outside of ventilation pipe 10.
Wherein, the bottom setting of blast pipe 8 is in the inside of antifriction bearing 9 and ventilation pipe 10, and ventilation pipe 10 passes through antifriction bearing 9 with blast pipe 8 and rotates to be connected, and ventilation pipe 10 and base station antenna housing 1 rotate through the cooperation of annular slider 5 and annular slide rail 11 and are connected.
Wherein, one end of the exhaust pipe 30 is arranged in the ventilation chamber 22, the outer side of the dust removing block 6 is in contact with the surface of the dust filtering plate 31, and the outer side of the electric telescopic rod 21 is provided with a waterproof protective sleeve 32.
The dust removing block 6 is arranged above the movable plate 29, the movable plate 29 is rotatably connected with the support plate 25 through a hinge 26, the bottom end of the limiting spring 27 is connected with the top end of the support plate 25, and the top end of the limiting spring 27 is connected with the bottom end of the movable plate 29.
The working principle is as follows: when a plurality of electric elements in the base station antenna shell 1 need to blow air and generate heat, firstly, the fan 7 is opened, the fan 7 sucks air into the blast pipe 8 through the exhaust pipe 30, and blows air into the ventilation pipe 10 through the blast pipe 8, so that a plurality of blast pipes 12 of a plurality of ventilation pipes 10 blow air on the plurality of electric elements arranged in the base station antenna shell 1, in order to enable the plurality of electric elements in the base station antenna shell 1 to be blown to the air uniformly, the driving motor 19 can be opened, the output shaft of the driving motor 19 drives the rotating rod 17 connected with the rotating rod to rotate in the circular hole 18, the rotating rod 17 drives the ventilation pipe 10 connected with the top end to rotate on the inner side of the base station antenna shell 1 through the annular sliding rail 11 and the annular sliding block 5, so that the ventilation pipe 10 drives the plurality of blast pipes 12 connected with the ventilation pipe 10 to rotate, and the blast pipes 12 can blow air on the plurality of electric elements, in order to achieve the purpose of uniformly blowing air for a plurality of electrical components, when the ventilation pipe 10 rotates, the air supply pipe 8 and the ventilation pipe 10 rotate through the rolling bearing 9 arranged between the air supply pipe 8 and the ventilation pipe 10, when the fan 7 draws air through the exhaust pipe 30, air enters the interior of the ventilation chamber 22 through the air inlet 23 and is filtered by the dust filter plate 31 arranged in the ventilation chamber 22 before entering the exhaust pipe 30, so that dust in the air is intercepted on the surface of the dust filter plate 31, when more dust is accumulated on the surface of the dust filter plate 31, the electric telescopic rod 21 is opened, the output shaft of the electric telescopic rod 21 drives the dust removal block 6 connected with the electric telescopic rod 21 and contacted with the surface of the dust filter plate 31 to move downwards, so that the dust removal block 6 scrapes off the dust on the surface of the dust filter plate 31, the output shaft of the electric telescopic rod 21 continues to move downwards until being abutted against the movable plate 29, so that the movable plate 29 rotates on the support plate 25 in a small range through the hinge 26, so that the dust scraped off from the dust filter 31 falls on the movable plate 29 and slides down on the movable plate 29 by gravity to be discharged out of the ventilation chamber 22, and rain water is effectively prevented from entering the inside of the base station antenna case 1 through the heat dissipating vent 14 by the rain shield 13.
Example 2
Referring to fig. 1 and 4, the cooling device for a 5G baseband pool, this embodiment compares in embodiment 1, and two arc through holes 16 have been seted up on the top of baffle 15, are provided with two supporting shoes 20 between two arc through holes 16, and the bottom in the dwang 17 outside is connected with two connecting rods 2, and the top of connecting rod 2 is provided with cleaning brush 3.
Wherein, the connecting rod 2 is arranged inside the arc-shaped through hole 16, and one side of the cleaning brush 3 is in contact with the surface of the heat dissipation vent hole 14.
The working principle is as follows: when the rotating rod 17 drives the ventilating pipe 10 to rotate so as to improve the blowing efficiency of the blowing pipe 12, the rotating rod 17 also drives the two connecting rods 2 to continuously rotate forward and backward, so that the cleaning brush 3 which is connected with the top end of the connecting rod 2 and is in surface contact with the dust filter screen 4 continuously moves on the surface of the dust filter screen 4, and the cleaning brush 3 removes the accumulated dust on the dust filter screen 4.
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the attached drawings, the specific connection mode of each part adopts the conventional means such as mature bolts, rivets, welding and the like in the prior art, the machines, parts and equipment adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so the detailed description is omitted.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A cooling device of a 5G baseband pool comprises a base station antenna shell (1), wherein a fan (7) is arranged at the top end of the base station antenna shell (1), a rain baffle (13) is arranged on the outer side of the base station antenna shell (1), a heat dissipation ventilation hole (14) is formed in the position, close to the rain baffle (13), of the outer side of the base station antenna shell (1), one side of the outer side of the fan (7) is connected with an air supply pipe (8), the other side of the outer side of the fan (7) is connected with an air exhaust pipe (30), a dust filter screen (4) is arranged inside the heat dissipation ventilation hole (14), the cooling device is characterized in that a driving motor (19) is installed at the bottom of the inner side of the base station antenna shell (1), a partition plate (15) is arranged on the inner side of the base station antenna shell (1), and a ventilation pipe (10) is connected to the top of the inner side of the base station antenna shell (1), the base station antenna comprises a base station antenna shell (1), and is characterized in that an annular slide rail (11) is arranged at the top of the inner side of the base station antenna shell (1), annular sliders (5) are installed on two sides of the outer side of a ventilation pipe (10), rolling bearings (9) are arranged at the top of the outer side of the ventilation pipe (10), a plurality of blowing pipes (12) are connected to the bottom of the outer side of the ventilation pipe (10) at equal intervals, a round hole (18) is formed in the middle of the top end of a partition plate (15), a rotating rod (17) is arranged at the top end of a driving motor (19), a supporting frame (24) is connected to the top end of the base station antenna shell (1), a ventilation chamber (22) is connected to the top end of the supporting frame (24), an air inlet (23) is formed in one side of the ventilation chamber (22), an electric telescopic rod (21) is installed at the top end of the ventilation chamber (22), and an ash discharge port (28) is formed in the bottom end of the ventilation chamber (22), the bottom of ventilation chamber (22) is connected with backup pad (25), the inboard of ventilation chamber (22) is provided with dust filter (31), one side of backup pad (25) is connected with fly leaf (29), one side of backup pad (25) is provided with hinge (26), spacing spring (27) are installed on the top of backup pad (25), the bottom of electric telescopic handle (21) is provided with dust removal piece (6).
2. The cooling device for the 5G baseband pool according to the claim 1, characterized in that the bottom end of the rotating rod (17) is connected with the output shaft of the driving motor (19), and the top end of the rotating rod (17) is connected with the outside of the ventilation pipe (10).
3. The cooling device for the 5G base band pool according to claim 2, wherein the bottom end of the air supply pipe (8) is arranged inside a rolling bearing (9) and a ventilation pipe (10), the ventilation pipe (10) is rotatably connected with the air supply pipe (8) through the rolling bearing (9), and the ventilation pipe (10) is rotatably connected with the base station antenna shell (1) through the matching of an annular sliding block (5) and an annular sliding rail (11).
4. The cooling device for the 5G base band pool according to the claim 1, characterized in that one end of the exhaust pipe (30) is arranged inside the ventilation chamber (22), the outer side of the dust removing block (6) is contacted with the surface of the dust filtering plate (31), and the outer side of the electric telescopic rod (21) is provided with a waterproof protective sleeve (32).
5. The cooling device for the 5G baseband pool according to claim 1, wherein the dust removing block (6) is arranged above a movable plate (29), the movable plate (29) is rotatably connected with the support plate (25) through a hinge (26), the bottom end of the limiting spring (27) is connected with the top end of the support plate (25), and the top end of the limiting spring (27) is connected with the bottom end of the movable plate (29).
6. The cooling device for the 5G baseband pool according to claim 1, wherein two arc-shaped through holes (16) are formed at the top end of the partition plate (15), two supporting blocks (20) are arranged between the two arc-shaped through holes (16), two connecting rods (2) are connected to the bottom of the outer side of the rotating rod (17), and a cleaning brush (3) is arranged at the top end of each connecting rod (2).
7. A cooling device for 5G base belt pool according to claim 6, characterized in that the connecting rod (2) is arranged inside the arc-shaped through hole (16), and one side of the cleaning brush (3) is contacted with the surface of the heat dissipation vent hole (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011176737.0A CN112351647B (en) | 2020-10-28 | 2020-10-28 | Cooling device of 5G baseband pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011176737.0A CN112351647B (en) | 2020-10-28 | 2020-10-28 | Cooling device of 5G baseband pool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112351647A CN112351647A (en) | 2021-02-09 |
| CN112351647B true CN112351647B (en) | 2022-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011176737.0A Active CN112351647B (en) | 2020-10-28 | 2020-10-28 | Cooling device of 5G baseband pool |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204947386U (en) * | 2015-08-10 | 2016-01-06 | 合肥德源智能科技有限公司 | Remote measuring type dust-proof switch cabinet |
| CN108772152A (en) * | 2018-06-14 | 2018-11-09 | 长兴恒大电子材料有限公司 | A kind of electrical insulating material production waste material collection device |
| CN208336974U (en) * | 2018-07-11 | 2019-01-04 | 天津天能电力工程有限公司 | A kind of outdoor power distribution cabinet with rainproof function |
| CN211435550U (en) * | 2019-12-10 | 2020-09-08 | 张家港永兴热电有限公司 | Dust collecting equipment that SOx/NOx control was used |
| CN211530445U (en) * | 2019-12-30 | 2020-09-18 | 黄勇 | High-low voltage power distribution cabinet convenient to remove |
| CN210957354U (en) * | 2019-12-30 | 2020-07-07 | 南京五正电气科技有限公司 | Alternating-current low-voltage power distribution cabinet with dampproofing dehumidification function |
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