CN113038297B - BBU outdoor cabinet based on 5G - Google Patents
BBU outdoor cabinet based on 5G Download PDFInfo
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- CN113038297B CN113038297B CN202110252608.3A CN202110252608A CN113038297B CN 113038297 B CN113038297 B CN 113038297B CN 202110252608 A CN202110252608 A CN 202110252608A CN 113038297 B CN113038297 B CN 113038297B
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- assembly
- liquid storage
- cooling
- cavity
- cooling cavity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/025—Cabinets
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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
Abstract
The invention is suitable for the technical field of 5G equipment, and particularly relates to a 5G-based BBU outdoor cabinet, which comprises a cabinet body and a liquid storage assembly, wherein one side of the cabinet body is provided with a containing cavity, the other side of the cabinet body is provided with a cooling cavity, a lifting bearing platform is arranged in the containing cavity, the liquid storage assembly is fixedly arranged at the top of the cooling cavity, an atomization cooling assembly and a power input assembly are arranged at the position, below the liquid storage assembly, of the cooling cavity, the atomization cooling assembly is connected with the liquid storage assembly, a temperature sensor is arranged in the containing cavity, the temperature sensor is electrically connected with the power input assembly, and the power input assembly is used for providing power for the atomization cooling assembly. The BBU outdoor cabinet based on 5G provided by the embodiment of the invention has the advantages of simple structure and reasonable design, can be adjusted according to the height of host equipment by arranging the lifting bearing platform, can quickly reduce the temperature of the host equipment by utilizing the atomization cooling component, and provides a safe environment for the operation of the host equipment.
Description
Technical Field
The invention belongs to the technical field of 5G equipment, and particularly relates to a BBU outdoor cabinet based on 5G.
Background
The outdoor cabinet is a cabinet body made of metal or nonmetal materials, does not allow an unauthorized operator to enter the cabinet body for operation, and provides outdoor physical working environment and safety system equipment for a wireless communication station or a wired network station workstation.
However, the existing outdoor cabinet is exposed to the sun, and the temperature in the outdoor cabinet is very high, so that the problem of heat dissipation is solved, and the poor heat dissipation can influence the running speed of the equipment in the outdoor cabinet.
Disclosure of Invention
The embodiment of the invention aims to provide a BBU outdoor cabinet based on 5G, and aims to solve the problems in the background art.
The embodiment of the invention is realized in such a way that the 5G-based BBU outdoor type machine cabinet comprises a cabinet body and a liquid storage assembly, wherein one side of the cabinet body is provided with an accommodating cavity, the other side of the cabinet body is provided with a cooling cavity, a lifting bearing platform is arranged in the accommodating cavity, the liquid storage assembly is fixedly arranged at the top of the cooling cavity, an atomization cooling assembly and a power input assembly are arranged at the position of the cooling cavity, which is positioned below the liquid storage assembly, the atomization cooling assembly is connected with the liquid storage assembly, a temperature sensor is arranged in the accommodating cavity, the temperature sensor is electrically connected with the power input assembly, and the power input assembly is used for providing power for the atomization cooling assembly.
Preferably, the lift cushion cap includes baffle and double-shaft motor, the baffle is provided with three groups, equal symmetry is provided with two sets of first bracing piece and second bracing piece between two adjacent groups of baffles, lie in and articulate each other between the first bracing piece of homonymy and the second bracing piece, the one end of first bracing piece is articulated with the baffle, and the other end rotates and is connected with the guide pin bushing, second bracing piece one end is articulated with the baffle, and the other end rotates and is connected with the screw rod cover, the both sides that lie in middle baffle are all fixed and are provided with double-shaft motor, the equal fixed connection screw rod in both ends of double-shaft motor, four groups of screw rods are connected with four groups of screw rod cover cooperations respectively, the baffle is used for installing host computer equipment.
Preferably, the atomizing cooling subassembly includes sealed scraper blade, time type scraper blade and lift lead screw, and the lift lead screw rotates to set up in the cooling chamber, and the cooperation is connected with two sets of lead screw covers on the lift lead screw, two sets of lead screw covers respectively with sealed scraper blade and time type scraper blade fixed connection, the outer fringe and the cooling chamber inner wall of sealed scraper blade and time type scraper blade closely laminate, the cooling chamber still is provided with the coiled pipe in, coiled pipe one end and liquid reserve tank intercommunication, and the other end is connected with the shower nozzle, and the lift lead screw lower extreme is connected with the power input subassembly.
Preferably, the power input assembly comprises a motor and a driving shaft, the driving shaft is rotatably arranged at a position, below the atomization cooling assembly, of the cooling cavity, the motor is fixed at the bottom of the cooling cavity, a first gear is fixedly arranged on a rotating shaft of the motor, a second gear is fixed on the driving shaft, the first gear is meshed with the second gear, an electric push rod is fixedly arranged at the bottom of the inner wall of the cooling cavity, a connecting shaft is rotatably connected to the electric push rod, a driving conical roller is fixedly arranged on the connecting shaft, the driving conical roller is of a circular truncated cone structure, a connecting sleeve is fixedly connected to one end, away from the electric push rod, of the connecting shaft, a connecting groove is formed in the connecting sleeve, a strip-shaped bulge is arranged at the end of the driving shaft, the bulge is slidably arranged in the connecting groove, a tensioning air spring and a pressing air spring are fixedly arranged on the inner wall of the cooling cavity, a tensioning wheel is rotatably connected to the tensioning air spring, a floating shaft is rotatably connected to the pressing air spring, a transmission conical roller is arranged on the floating shaft, the transmission conical roller is abutted against the driving conical roller, a floating belt wheel is arranged on the inner wall of the cooling cavity, a rotating shaft, a fixed bevel wheel is fixedly connected to one end of the rotating shaft, a first bevel gear, a second bevel gear is connected to the other end of the lifting screw rod, a second bevel gear is fixedly connected to the lifting screw, and a second bevel gear.
Preferably, the stock solution subassembly includes the liquid reserve tank, and the liquid reserve tank is fixed at the cooling chamber top, and liquid reserve chamber bottom is provided with the suction head, and the suction head is connected with the atomizing cooling subassembly through first hose, and the internal rigidity that is located cooling chamber one side of cabinet is provided with back the sap cavity, returns the sap cavity and communicates with the cooling chamber through returning the liquid check valve, and communicates with the liquid reserve tank through returning liquid pipe.
Preferably, the upper end of the liquid storage tank is fixedly provided with a liquid inlet, the liquid inlet is connected with the liquid storage tank through a liquid inlet one-way valve, and the upper end of the liquid inlet is rotatably connected with a magnetic suction cover.
Preferably, the bottom of the cabinet body is provided with rollers.
The BBU outdoor cabinet based on 5G provided by the embodiment of the invention has the advantages of simple structure and reasonable design, can be adjusted according to the height of host equipment by arranging the lifting bearing platform, can quickly reduce the temperature of the host equipment by utilizing the atomization cooling component, and provides a safe environment for the operation of the host equipment.
Drawings
Fig. 1 is a schematic front structure diagram of a BBU outdoor type cabinet based on 5G according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a back side of a BBU outdoor-type cabinet based on 5G according to an embodiment of the present invention;
fig. 3 is a schematic partial structural view of a BBU outdoor-type cabinet based on 5G according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a driving conical roller according to an embodiment of the present invention.
In the drawings: 1. a cabinet body; 2. a host device; 3. a partition plate; 4. a heat dissipation clamping plate; 5. a heat sink; 6. a first support bar; 7. a guide bar; 8. a double-shaft motor; 9. a second support bar; 10. a guide sleeve; 11. a screw sleeve; 12. a liquid storage tank; 13. a liquid inlet; 14. a magnetic attraction cover; 15. a liquid inlet check valve; 16. a suction head; 17. a first hose; 18. a serpentine tube; 19. a clip-shaped scraper; 20. a motor; 21. a drive shaft; 22. a first gear; 23. a second gear; 24. driving the conical roller; 25. an electric push rod; 26. a connecting sleeve; 27. compressing the gas spring; 28. a spray head; 29. a liquid return cavity; 30. a liquid return pipe; 31. a transmission conical roller; 32. a lifting screw rod; 33. a sealing scraper; 34. a tension wheel; 35. a fixed pulley; 36. a floating pulley.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1 and 2, the 5G-based BBU outdoor-type cabinet provided by the embodiment of the present invention is a front structure schematic diagram, and the BBU outdoor-type cabinet includes a cabinet body 1 and a liquid storage assembly, one side of the cabinet body 1 is provided with a receiving cavity, the other side is provided with a cooling cavity, a lifting bearing platform is arranged in the receiving cavity, the liquid storage assembly is fixedly arranged at the top of the cooling cavity, an atomization cooling assembly and a power input assembly are arranged in the cooling cavity below the liquid storage assembly, the atomization cooling assembly is connected with the liquid storage assembly, a temperature sensor is arranged in the receiving cavity, the temperature sensor is electrically connected with the power input assembly, and the power input assembly is used for providing power for the atomization cooling assembly.
In one example of the invention, a plurality of groups of radiating fins 5 are arranged on the inner wall of the accommodating cavity in parallel, a plurality of groups of radiating clamping plates 4 are arranged on the lifting bearing platform, the cross sections of the radiating clamping plates 4 are U-shaped, the radiating clamping plates 4 are clamped on the radiating fins 5 in a sliding manner, and then the heat of the cabinet body 1 is taken away by utilizing the atomization cooling assembly so as to ensure the stable working temperature of the host equipment 2. The BBU outdoor cabinet based on 5G provided by the embodiment of the invention has the advantages of simple structure and reasonable design, can be adjusted according to the height of the host equipment 2 by arranging the lifting bearing platform, and can quickly reduce the temperature of the host equipment 2 by utilizing the atomization cooling component, thereby providing a safe environment for the operation of the host equipment 2.
As shown in fig. 1, as a preferred embodiment of the present invention, the lifting support platform includes three groups of partition plates 3 and two-shaft motors 8, three groups of partition plates 3 are provided, two groups of first support rods 6 and two groups of second support rods 9 are symmetrically provided between two adjacent groups of partition plates 3, the first support rods 6 and the second support rods 9 located on the same side are hinged to each other, one end of each first support rod 6 is hinged to a partition plate 3, the other end of each first support rod is rotatably connected to a guide sleeve 10, one end of each second support rod 9 is hinged to a partition plate 3, the other end of each second support rod is rotatably connected to a screw sleeve 11, two sides of the partition plate 3 located in the middle are fixedly provided with two-shaft motors 8, two ends of each two-shaft motor 8 are fixedly connected to screws, the four groups of screws are respectively connected to the four groups of screw sleeves 11 in a matching manner, and the partition plate 3 is used for installing the host device 2.
In an example of the present invention, when in use, different host devices 2 have different heights, and therefore need to be adjusted according to the heights, and a certain heat dissipation space is ensured around the host devices 2, when adjusting, the dual-axis motor 8 is started, the dual-axis motor 8 drives the screw to rotate, the screw drives the screw sleeve 11 to drive the first support rod 6 and the second support rod 9 to rotate, so as to adjust the distance between the partition plates 3, the partition plates 3 can be provided with multiple groups, and only one group of partition plates 3 needs to be fixed in the accommodating cavity.
As shown in fig. 2, as a preferred embodiment of the present invention, the atomization cooling assembly includes a sealing scraper 33, a clip-shaped scraper 19 and a lifting screw 32, the lifting screw 32 is rotatably disposed in the cooling cavity, and two sets of screw sleeves are connected to the lifting screw 32 in a matching manner, the two sets of screw sleeves are respectively and fixedly connected to the sealing scraper 33 and the clip-shaped scraper 19, outer edges of the sealing scraper 33 and the clip-shaped scraper 19 are tightly attached to an inner wall of the cooling cavity, a coil 18 is further disposed in the cooling cavity, one end of the coil 18 is communicated with the liquid storage tank 12, the other end of the coil is connected to a spray head 28, and a lower end of the lifting screw 32 is connected to the power input assembly.
In an embodiment of the present invention, when in use, the lifting screw 32 is driven to rotate back and forth by the power input assembly, during the lifting of the lifting screw 32, the two sets of screw sleeves will drive the sealing scraper 33 and the return scraper 19 to lift, and during this process, the spray head 28 will spray the cooling liquid stored in the liquid storage assembly to the cooling cavity, and during the lowering of the sealing scraper 33, the cooling liquid will be atomized, and the cooling liquid will absorb heat by atomization, so that the heat of the cabinet body 1 will be taken away, and the return scraper 19 will uniformly distribute the cooling liquid on the inner wall of the cooling cavity, so as to make it exchange heat sufficiently, and during the lifting of the return scraper 19, the gas in the cooling cavity will be pressed back to the liquid storage assembly.
As shown in fig. 3 and 4, as a preferred embodiment of the present invention, the power input assembly includes a motor 20 and a driving shaft 21, the driving shaft 21 is rotatably disposed at a position of the cooling cavity below the atomization cooling assembly, the motor 20 is fixed at the bottom of the cooling cavity, a first gear 22 is fixedly disposed on a rotating shaft of the motor 20, a second gear 23 is fixed on the driving shaft 21, the first gear 22 is engaged with the second gear 23, an electric push rod 25 is fixedly disposed at the bottom of an inner wall of the cooling cavity, a connecting shaft is rotatably connected to the electric push rod 25, a driving conical roller 24 is fixedly disposed on the connecting shaft, the driving conical roller 24 is in a circular truncated cone structure, a connecting sleeve 26 is fixedly connected to one end of the connecting shaft away from the electric push rod 25, a connecting groove 26 is disposed in the connecting sleeve 26, a strip-shaped protrusion is disposed at an end of the driving shaft 21, the protrusion is slidably disposed in the connecting groove, a tensioning gas spring and a pressing gas spring 27 are fixedly disposed on an inner wall of the cooling cavity, a floating shaft 34 is rotatably connected to the tensioning gas spring, a floating shaft 27 is rotatably connected to a floating shaft, a transmission conical roller 31 is connected to the transmission conical roller 31, a second bevel pulley 35 is connected to the transmission pulley 35 via a fixed on the inner wall of the cooling cavity, a second bevel pulley 35, and a first pulley is connected to a lifting pulley 35, and a first pulley and a floating pulley via a lifting pulley, and a floating pulley.
In an embodiment of the present invention, when in use, the motor 20 is started, the motor 20 drives the driving shaft 21 to rotate through the engagement of the first gear 22 and the second gear 23, the driving shaft 21 drives the driving conical roller 31 to rotate, the pressing gas spring 27 presses the driving conical roller 31 against the driving conical roller 24, so that the driving shaft 21 and the driving conical roller 24 rotate through friction, and under the action of the pressing gas spring, the tension wheel 34 tensions the driving belt, so that power is transmitted to the fixed belt wheel 35 through the floating belt wheel 36, and finally the lifting screw 32 is driven to rotate, and the rotating speeds of the lifting screw 32 are different, so that the driving conical roller 24 can be pushed by the electric push rod 23 to move according to needs, thereby changing the transmission ratio between the driving conical roller 24 and the driving conical roller 31, and achieving the purpose of stepless speed change.
As shown in fig. 3 and 4, as a preferred embodiment of the present invention, the liquid storage assembly includes a liquid storage tank 12, the liquid storage tank 12 is fixed on the top of the cooling cavity, a suction head 16 is disposed at the bottom of the liquid storage cavity, the suction head 16 is connected to the atomization cooling assembly through a first hose 17, a liquid return cavity 29 is fixedly disposed at a position on one side of the cooling cavity in the cabinet 1, and the liquid return cavity 29 is communicated with the cooling cavity through a liquid return check valve and is communicated with the liquid storage tank 12 through a liquid return pipe 30.
In one embodiment of the invention, when the cooling chamber is at reduced pressure, the suction head 16 draws coolant up and out through the spray head 28, and when the cooling chamber is at increased pressure, both the gas and liquid in the cooling chamber are returned to the tank 12 through the return chamber 29.
As shown in fig. 2, as a preferred embodiment of the present invention, a liquid inlet 13 is fixedly disposed at the upper end of the liquid storage tank 12, the liquid inlet 13 is connected to the liquid storage tank 12 through a liquid inlet check valve 15, and a magnetic suction cover 14 is rotatably connected to the upper end of the liquid inlet 13.
In one example of the invention, the magnetically attractable cap 14 is used to seal the loading port in use.
As a preferred embodiment of the present invention, the bottom of the cabinet 1 is provided with rollers.
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 specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (6)
1. The BBU outdoor type machine cabinet based on 5G is characterized by comprising a cabinet body (1) and a liquid storage assembly, wherein one side of the cabinet body (1) is provided with an accommodating cavity, the other side of the cabinet body is provided with a cooling cavity, a lifting bearing platform is arranged in the accommodating cavity, the liquid storage assembly is fixedly arranged at the top of the cooling cavity, an atomization cooling assembly and a power input assembly are arranged at the position, below the liquid storage assembly, of the cooling cavity, the atomization cooling assembly is connected with the liquid storage assembly, a temperature sensor is arranged in the accommodating cavity, the temperature sensor is electrically connected with the power input assembly, and the power input assembly is used for providing power for the atomization cooling assembly;
the elevating platform comprises a partition board (3) and a double-shaft motor (8), the partition board (3) is provided with three groups, two groups of first supporting rods (6) and second supporting rods (9) are symmetrically arranged between two adjacent groups of partition boards (3), the first supporting rods (6) and the second supporting rods (9) on the same side are hinged to each other, one end of each first supporting rod (6) is hinged to the corresponding partition board (3), the other end of each first supporting rod is rotatably connected with a guide sleeve (10), one end of each second supporting rod (9) is hinged to the corresponding partition board (3), the other end of each second supporting rod is rotatably connected with a screw sleeve (11), the double-shaft motor (8) is fixedly arranged on two sides of the middle partition board (3), two ends of the double-shaft motor (8) are fixedly connected with screw rods, the four groups of screw rods are respectively matched with the four screw sleeves (11), and the partition board (3) is used for installing the host machine equipment (2).
2. The BBU outdoor cabinet based on 5G, according to claim 1, wherein the atomization cooling assembly comprises a sealing scraper (33), a clip scraper (19) and a lifting screw (32), the lifting screw (32) is rotatably disposed in the cooling cavity, and two sets of screw sleeves are fittingly connected to the lifting screw (32), the two sets of screw sleeves are respectively and fixedly connected to the sealing scraper (33) and the clip scraper (19), outer edges of the sealing scraper (33) and the clip scraper (19) are tightly attached to an inner wall of the cooling cavity, a coiled pipe (18) is further disposed in the cooling cavity, one end of the coiled pipe (18) is communicated with the liquid storage tank (12), and the other end of the coiled pipe is connected to the spray head (28), and a lower end of the lifting screw (32) is connected to the power input assembly.
3. The BBU outdoor type cabinet based on 5G, according to claim 1, wherein the power input assembly includes a motor (20) and a driving shaft (21), the driving shaft (21) is rotatably disposed at a position of the cooling cavity below the atomizing and cooling assembly, the motor (20) is fixed at the bottom of the cooling cavity, a first gear (22) is fixedly disposed on a rotating shaft of the motor (20), a second gear (23) is fixed on the driving shaft (21), the first gear (22) is engaged with the second gear (23), an electric push rod (25) is fixedly disposed at the bottom of the inner wall of the cooling cavity, a connecting shaft is rotatably connected to the electric push rod (25), a driving conical roller (24) is fixedly disposed on the connecting shaft, the driving conical roller (24) is in a circular cone structure, a connecting sleeve (26) is fixedly connected to one end of the connecting shaft far away from the electric push rod (25), a connecting groove is disposed in the connecting sleeve (26), a strip-shaped protrusion is disposed at an end of the driving shaft (21), the protrusion is slidably disposed in the connecting groove, a gas spring and is fixedly disposed on the inner wall of the cooling cavity, a gas spring and a floating pulley (27) are rotatably connected to the tensioning roller (34) via a floating pulley (31) which is connected to the rotating shaft, a floating pulley (31) is disposed on the rotating shaft, one end of the rotating shaft is fixedly connected with a fixed belt wheel (35), the other end of the rotating shaft is connected with a first bevel gear, the bottom of the lifting screw rod (32) is fixedly connected with a second bevel gear, the first bevel gear is meshed with the second bevel gear, and the fixed belt wheel (35), the floating belt wheel (36) and the tensioning wheel (34) are in transmission connection through belts.
4. The BBU outdoor type cabinet based on 5G of any one of claims 1 to 3, wherein the liquid storage assembly comprises a liquid storage tank (12), the liquid storage tank (12) is fixed to the top of the cooling cavity, a suction head (16) is arranged at the bottom of the liquid storage cavity, the suction head (16) is connected with the atomization cooling assembly through a first hose (17), a liquid return cavity (29) is fixedly arranged at a position on one side of the cooling cavity in the cabinet body (1), and the liquid return cavity (29) is communicated with the cooling cavity through a liquid return check valve and is communicated with the liquid storage tank (12) through a liquid return pipe (30).
5. The 5G-based BBU outdoor cabinet disclosed by claim 4, wherein a liquid inlet (13) is fixedly arranged at the upper end of the liquid storage tank (12), the liquid inlet (13) is connected with the liquid storage tank (12) through a liquid inlet one-way valve (15), and a magnetic suction cover (14) is rotatably connected at the upper end of the liquid inlet (13).
6. The 5G-based BBU outdoor cabinet according to claim 4, wherein the bottom of the cabinet body (1) is provided with rollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110252608.3A CN113038297B (en) | 2021-03-09 | 2021-03-09 | BBU outdoor cabinet based on 5G |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110252608.3A CN113038297B (en) | 2021-03-09 | 2021-03-09 | BBU outdoor cabinet based on 5G |
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| CN113038297A CN113038297A (en) | 2021-06-25 |
| CN113038297B true CN113038297B (en) | 2023-01-24 |
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| US8333329B2 (en) * | 2009-06-19 | 2012-12-18 | Spx Corporation | Atomizing desuperheater shutoff apparatus and method |
| CN108087999B (en) * | 2017-12-28 | 2024-03-29 | 宙斯流体系统（上海）有限公司 | Air purification defense system |
| CN210154216U (en) * | 2019-05-24 | 2020-03-17 | 泉州市大匠风文化创意有限公司 | Drying cabinet |
| CN210007907U (en) * | 2019-06-27 | 2020-01-31 | 广东合一新材料研究院有限公司 | cabinet type 5G base station calculation unit and 5G base station comprising calculation unit |
| CN111462986A (en) * | 2020-05-14 | 2020-07-28 | 广东电网有限责任公司东莞供电局 | Cooling device and cooling method |
| CN212644115U (en) * | 2020-07-24 | 2021-03-02 | 成都前宏通讯有限责任公司 | 5G cabinet lifting system |
| CN212649823U (en) * | 2020-07-29 | 2021-03-02 | 成都广日电气设备有限公司 | Dustproof elevator control cabinet |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN212199273U (en) * | 2020-03-11 | 2020-12-22 | 河南技力装备技术有限公司 | Continuous biological fermentation device for tobacco products |
| CN111947255A (en) * | 2020-07-17 | 2020-11-17 | 郑博文 | High-efficient rack heat dissipation air conditioner |
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Effective date of registration: 20230224 Address after: 201600 East side of 3rd floor, Building 14, No. 500, Songmin Road, Songjiang District, Shanghai Patentee after: SHANGHAI LETEL COMMUNICATION EQUIPMENT (GROUP) CO.,LTD. Patentee after: ZHONGLE COMMUNICATION TECHNOLOGY CO.,LTD. Address before: 201600 No.500, Songmin Road, Songjiang District, Shanghai Patentee before: SHANGHAI LETEL COMMUNICATION EQUIPMENT (GROUP) CO.,LTD. |