CN112822921A - Heat dissipation device for outdoor communication cabinet of broadcast television - Google Patents
Heat dissipation device for outdoor communication cabinet of broadcast television Download PDFInfo
- Publication number
- CN112822921A CN112822921A CN202110025276.5A CN202110025276A CN112822921A CN 112822921 A CN112822921 A CN 112822921A CN 202110025276 A CN202110025276 A CN 202110025276A CN 112822921 A CN112822921 A CN 112822921A
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- China
- Prior art keywords
- cabinet
- heat dissipation
- cabinet body
- coiled pipe
- outdoor communication
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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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- 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
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20263—Heat dissipaters releasing heat from coolant
Abstract
The invention discloses a heat dissipation device for a broadcast television outdoor communication cabinet, and mainly relates to the field of heat dissipation of outdoor communication cabinets. The intelligent cabinet temperature reducing device comprises a cabinet body, the external side of cabinet is equipped with the air inlet fan that runs through cabinet side wall, the heat sink is including setting up the first coiled pipe in the external side of cabinet, the area of first coiled pipe covers whole fan that advances, the external side of cabinet is equipped with the coolant liquid case, still be equipped with the exhaust fan on the cabinet body, the external one side that just is close to communication equipment of cabinet is equipped with the heat dissipation cabinet, be equipped with the second coiled pipe in the heat dissipation cabinet, the bottom is equipped with main water tank in the heat dissipation cabinet. The invention has the beneficial effects that: the heat dissipation of initiatively circulating can be carried out to the inside and outside air of rack through the fan, accelerates the discharge of the inside steam of rack, and through the combination of coiled pipe and water tank, the inside radiating effect of rack is further improved simultaneously, guarantees that communication equipment is under normal operating temperature.
Description
Technical Field
The invention relates to the field of heat dissipation of outdoor communication cabinets, in particular to a heat dissipation device for a broadcast television outdoor communication cabinet.
Background
Broadcast television (Radio and television) is a news broadcasting tool that broadcasts sound, images, and video over Radio waves or wires. Broadcasting only sound, called sound broadcasting; broadcasting images and sounds is called television broadcasting.
An outdoor communication cabinet is one of outdoor cabinets, and refers to a cabinet body which is directly under the influence of natural weather, is made of metal or nonmetal materials, does not allow an unauthorized operator to enter the cabinet body for operation, and provides an outdoor physical working environment and a safety system for a wireless communication station or a wired network station workstation. The equipment cabinet is suitable for being installed in outdoor environments such as roadside, parks, roofs, mountainous areas and flat ground, base station equipment, power supply equipment, storage batteries, temperature control equipment, transmission equipment and other matched equipment can be installed in the equipment cabinet, and reliable mechanical and environmental protection can be provided for normal operation of internal equipment.
Outdoor communication rack in use often can meet the bad problem of heat dissipation, often only utilize outside air circulation heat dissipation at the heat dissipation in-process, but in the outdoor communication rack in the use, carry out the heat exchange with outdoor air basically, but in the higher summer of temperature, often all be communication rack outside temperature too high, be unfavorable for the temperature in the rack to spill out, only rely on the air circulation heat dissipation of rack self and outside to be not fine play the thermolysis, influence inside communication equipment's normal work.
Disclosure of Invention
The invention aims to provide a heat dissipation device for a broadcast television outdoor communication cabinet, which can actively and circularly dissipate heat of air inside and outside the cabinet through a fan to accelerate the discharge of hot air inside the cabinet, and further improve the heat dissipation effect inside the cabinet through the combination of a coiled pipe and a water tank to ensure that communication equipment is at normal working temperature.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a heat dissipation device for a broadcast television outdoor communication cabinet comprises a cabinet body, wherein communication equipment is arranged in the cabinet body, an air inlet fan penetrating through the side wall of the cabinet body is arranged on the outer side of the cabinet body, a cooling device is arranged on one side, away from the cabinet body, of the air inlet fan, the cooling device comprises a first coiled pipe arranged on the outer side of the cabinet body, the area of the first coiled pipe covers the whole air inlet fan, a cooling liquid tank is arranged on the outer side of the cabinet body, one end of the first coiled pipe is communicated with the cooling liquid tank, the other end of the first coiled pipe is communicated with the cooling liquid tank through a first pump body, an exhaust fan is further arranged on the cabinet body,
the cabinet is external and one side that is close to communications facilities is equipped with the heat dissipation cabinet, be equipped with the second coiled pipe in the heat dissipation cabinet, the setting is coiled to the external wall of cabinet is hugged closely to the second coiled pipe, the bottom is equipped with main water tank in the heat dissipation cabinet, the one end and the main water tank intercommunication of second coiled pipe, the other end of second coiled pipe passes through the second pump body and communicates with main water tank.
Further, a first temperature sensor is arranged in the cabinet body, and a second temperature sensor is arranged in the heat dissipation cabinet.
Further, the bottom still is equipped with auxiliary water tank in the heat dissipation cabinet, be provided with inlet tube and outlet pipe between auxiliary water tank and the main water tank respectively the intercommunication, be equipped with the first pump body on the inlet tube.
Furthermore, a first one-way valve is arranged on the water outlet pipe, and water backflow is prevented through the first one-way valve.
Furthermore, the fan inlet and the cooling device are provided with two sets of fans and are respectively arranged on two sides of the cabinet body, and the exhaust fan is arranged on the top of the cabinet body.
Further, the top of the cabinet body is provided with a collecting box, the bottom of the collecting box is provided with a flow guide pipe, and the other end of the flow guide pipe penetrates through the heat dissipation cabinet and is communicated with a second coiled pipe.
Furthermore, a second one-way valve is arranged on the flow guide pipe, and water in the second coiled pipe is prevented from flowing into the collecting box through the second one-way valve.
Furthermore, the air inlets of the air inlet fan and the air outlet fan are respectively provided with a dust filtering net.
Furthermore, the bottom of the cooling liquid box is provided with a semiconductor refrigeration piece, and a refrigeration surface of the semiconductor refrigeration piece is in contact with the bottom surface of the cooling liquid box.
Compared with the prior art, the invention has the beneficial effects that:
1. the outside of the cabinet body is provided with an air inlet fan penetrating through the side wall of the cabinet body, the cabinet body is also provided with an exhaust fan, the inside and the outside of the cabinet body form active air circulation through the air inlet fan and the exhaust fan, the discharge of high-temperature air in the cabinet body can be accelerated when the temperature difference between the inside and the outside of the cabinet body is small, and the normal working temperature in the cabinet body is ensured;
2. when the air inlet fan sends outside air into the cabinet body, the outside air is firstly exchanged with the cooling liquid through the first coiled pipe to be cooled and then sent into the cabinet body, so that the temperature of the air sent into the cabinet body is greatly reduced, the temperature in the cabinet body is effectively reduced, and the heat dissipation effect is improved;
3. the cabinet is external and one side that is close to communications facilities is equipped with the cabinet that dispels the heat, be equipped with the second coiled pipe in the cabinet that dispels the heat, the one end and the main water tank intercommunication of second coiled pipe, the other end passes through the second pump body and main water tank intercommunication, comes to carry out the heat exchange with the cabinet body through the lower hydrologic cycle of second coiled pipe temperature, absorbs the heat of the cabinet body, further reduces the internal temperature of cabinet, guarantees the radiating effect to guarantee the normal work of the internal equipment of cabinet.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a side view schematic of the present invention.
Fig. 3 is a side structural cross-sectional view of the present invention.
Fig. 4 is a schematic view of the internal structure of the heat dissipation cabinet of the present invention.
Reference numerals shown in the drawings:
1. a cabinet body; 2. a fan inlet; 3. a first serpentine tube; 4. a coolant tank; 5. a first pump body; 6. an exhaust fan; 7. a heat dissipation cabinet; 8. a second serpentine tube; 9. a main water tank; 10. a second pump body; 11. a first temperature sensor; 12. a second temperature sensor; 13. an auxiliary water tank; 14. a water inlet pipe; 15. a water outlet pipe; 16. a third pump body; 17. a first check valve; 18. a collection box; 19. a flow guide pipe; 20. a second one-way valve; 21. a dust filter screen; 22. a semiconductor refrigeration sheet; 23. a communication device; 24. a cooling device.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
The invention relates to a heat dissipation device for a broadcast television outdoor communication cabinet, which comprises a cabinet body 1, wherein the cabinet body 1 is a conventional structure of a common outdoor communication cabinet in the prior art, communication equipment 23 is arranged in the cabinet body 1, the communication equipment 23 is some equipment used for broadcast television, an air inlet fan 2 penetrating through the side wall of the cabinet body 1 is arranged on the outer side of the cabinet body 1, external air is sent into the cabinet body 1 through the air inlet fan 2, a temperature reduction device 24 is arranged on one side of the air inlet fan 2, which is far away from the cabinet body 1, the temperature reduction device 24 comprises a first serpentine pipe 3 arranged on the outer side of the cabinet body 1, the area of the first serpentine pipe 3 covers the air inlet of the whole air inlet fan 2, a cooling liquid tank 4 is arranged on the outer side of the cabinet body 1, cooling liquid is filled in the cooling liquid tank 4, the cooling liquid can be water, one end of the first serpentine, the other end of the first serpentine pipe 3 is communicated with a cooling liquid tank 4 through a first pump body 5, an exhaust fan 6 is also arranged on the cabinet body 1, high-temperature air in the cabinet body 1 is exhausted to the outside through the exhaust fan 6,
when the air inlet fan 2 works to send outside air into the cabinet body 1, the outside air firstly contacts with the first coiled pipe 3 for heat exchange, so that the air is sent into the cabinet body 1 after the temperature of the air is reduced, the temperature of the air entering the cabinet body 1 can be greatly reduced in hot weather, the heat dissipation effect inside the cabinet body 1 is improved, the environment temperature inside the cabinet body 1 is effectively reduced, high-temperature air inside the cabinet body 1 can be actively discharged by the exhaust fan 6, the air circulation inside and outside the cabinet body 1 is promoted, and the heat dissipation effect of the cabinet body 1 is further ensured;
a heat dissipation cabinet 7 is arranged at one side of the cabinet body 1 close to the communication equipment 23, the heat dissipation cabinet 7 is of a shell structure with one open side, the open side of the heat dissipation cabinet 7 is connected with the outer side of the cabinet body 1, a plurality of heat dissipation holes are formed in one side wall of the heat dissipation cabinet 7 far away from the cabinet body 1, a second serpentine pipe 8 is arranged in the heat dissipation cabinet 7, the second serpentine pipe 8 is tightly attached to the outer wall of the cabinet body 1 and is coiled, a main water tank 9 is arranged at the bottom in the heat dissipation cabinet 7, one end of the second serpentine pipe 8 is communicated with the main water tank 9, the other end of the second serpentine pipe 8 is communicated with the main water tank 9 through a second pump body 10,
the second pump body 10 pumps water in the main water tank 9 into the second coiled pipe 8 and then flows back to the main water tank 9 from the other end, the temperature of the side wall of the cabinet body 1 is reduced through the circulation, so that heat generated by the communication equipment 23 when working is transferred to the heat dissipation cabinet 7 with lower temperature by the heat at the part close to the heat dissipation cabinet 7, and therefore the heat in the cabinet body 1 is dissipated, and the normal working temperature in the cabinet body 1 is ensured.
Preferably, a first temperature sensor 11 is arranged in the cabinet body 1, a second temperature sensor 12 is arranged in the heat dissipation cabinet 7, the first temperature sensor 11, the second temperature sensor 12, the air intake fan 2, the exhaust fan 6, the first pump body 5 and the second pump body 10 are in signal connection with a controller or a central control system and are controlled by the controller or the central control system, a temperature value is preset for the first temperature sensor 11 and the second temperature sensor 12 respectively, and when the temperature in the cabinet body 1 is lower than the set value of the first temperature sensor 11, only the air intake fan 2 or the exhaust fan 6 is controlled to work, so that the basic heat dissipation requirement is met; when the temperature approaches to the set value of the first temperature sensor 11, the air inlet fan 2 and the air outlet fan 6 are controlled to work simultaneously, so that the air circulation inside and outside the cabinet body 1 is accelerated, and the heat dissipation is promoted; when the temperature reaches the set value of the first temperature sensor 11 and is lower than the set value of the second temperature sensor 12, the first pump body 5 is controlled to be started to reduce the temperature of the air sent into the cabinet body 1 by the air inlet fan 2, and the structures can meet the heat dissipation requirement in general weather; when the external temperature is too high, the second temperature sensor 12 detects that the external temperature reaches a set value, and then the second pump body 10 is controlled to be started to avoid the influence of external high-temperature air on the heat dissipation effect of the cabinet body 1, so that the cabinet body 1 is subjected to auxiliary heat dissipation through water circulation in the second serpentine pipe 8, and the normal working temperature in the cabinet body 1 is further ensured; the whole heat dissipation system can select a proper heat dissipation mode according to different temperatures inside the cabinet body 1 and in the environment, so that the whole heat dissipation system is more intelligent in work.
When the temperature in the cabinet body 1 and the external temperature are both high, the water in the main water tank 9 absorbs the heat transferred by the cabinet body 1 and the external high temperature at the same time, so that the water temperature in the main water tank 9 rises, the heat absorption effect of the water circulation in the second serpentine pipe 8 is affected, an auxiliary water tank 13 is further arranged at the bottom in the heat dissipation cabinet 7, a water inlet pipe 14 and a water outlet pipe 15 are respectively communicated between the auxiliary water tank 13 and the main water tank 9, a third pump body 16 is arranged on the water inlet pipe 14, the third pump body 16 is also in signal connection with a controller or a central control system, the water in the auxiliary water tank 13 is more than the water in the main water tank 9, when the temperature in the cabinet body 1 detected by the first temperature sensor 11 is close to the set value of the second temperature sensor 12, the water temperature in the main water tank 9 is acquiesced to rise, the third pump body 16 is controlled to start, so that the water in the auxiliary water tank 13 flows into the main water tank 9 from the, the water with lower temperature in the auxiliary water tank 13 and the water with higher temperature in the main water tank 9 are circulated to reduce the temperature of the circulating water in the second serpentine pipe 8, so that the heat dissipation effect is ensured, and the normal working temperature in the cabinet body 1 is ensured.
Preferably, the water outlet pipe 15 is provided with a first one-way valve 17, water in the auxiliary water tank 13 can only be pumped into the main water tank 9 by the third pump body 16 through the first one-way valve 17 and then enters the auxiliary water tank 13 for circulation, and when the third pump body 16 is closed and the water amount in the auxiliary water tank 13 is more than that in the main water tank 9, the water in the auxiliary water tank 13 is prevented from flowing back into the main water tank 9 through the water outlet pipe 15.
Preferably, the inlet fan 2 and the cooling device 24 are provided with two sets and respectively arranged at two sides of the cabinet body 1 to increase the air intake, and the exhaust fan 6 is arranged at the top of the cabinet body 1 to form a circulation air path with an included angle between the inlet fan 2 and the exhaust fan 6, which is beneficial to the circulation of air inside and outside the cabinet body 1.
Preferably, the top of the cabinet body 1 is provided with a collection box 18, the top of the collection box 18 is open, the bottom of the collection box 18 is provided with a flow guide pipe 19, the other end of the flow guide pipe 19 penetrates through the heat dissipation cabinet 7 and is communicated with the second coiled pipe 8, the cross section of the collection box 18 is inverted trapezoid, the collection area is increased, rain and snow are collected through the collection box 18, collected rain and snow are sent into the second coiled pipe 8 through the flow guide pipe 19 to be subjected to water circulation, or are collected in the main water tank 9, meanwhile, the rain and snow can be prevented from entering the cabinet body 1 through the exhaust fan 6 at the top of the cabinet body 1, and the safety of the communication equipment 23.
Preferably, the draft tube 19 is provided with a second one-way valve 20, water in the collecting tank 18 can only enter the second serpentine tube 8 along the draft tube 19 through the second one-way valve 20, so that water in the second serpentine tube 8 is prevented from flowing into the collecting tank 18, and normal water circulation work of the second serpentine tube 8 is ensured.
Preferably, the wind gap department of inlet fan 2, exhaust fan 6 all is equipped with dust screen 21, reduces the dust of the internal portion of cabinet and piles up, guarantees the normal heat dissipation of communication equipment 23, is equipped with the brush in the fan, the brush hair and the flabellum contact of brush, and at inlet fan 2 and exhaust fan 6 during operation, the flabellum is brushed by the brush hair, prevents that the dust from piling up at the flabellum, guarantees inlet fan 2 and exhaust fan 6's working effect.
Preferably, the bottom of the cooling liquid box 4 is provided with the semiconductor refrigerating sheet 22, the refrigerating surface of the semiconductor refrigerating sheet 22 is in contact with the bottom surface of the cooling liquid box 4, the semiconductor refrigerating sheet 22 is linked with the first pump body 5, the semiconductor refrigerating sheet 22 is started when the first pump body 5 is started, the temperature of cooling liquid in the cooling liquid box 4 is reduced, the good cooling effect of the first coiled pipe 3 on air fed into the cabinet body 1 is ensured, and the normal working temperature in the cabinet body 1 is ensured.
The invention can actively and circularly dissipate the heat of the air inside and outside the cabinet body 1 through the fan, accelerate the air circulation inside and outside the cabinet body 1, reduce the temperature of the air sent into the cabinet body 1 through the combination of the coiled pipe and the water tank, and assist in heat dissipation, further improve the heat dissipation effect inside the cabinet body 1, and ensure that the communication equipment 23 is at the normal working temperature.
Claims (9)
1. The utility model provides a broadcast television outdoor communication rack heat abstractor, includes the cabinet body (1), be equipped with communications facilities (23) in the cabinet body (1), its characterized in that: the cabinet is characterized in that an air inlet fan (2) penetrating through the side wall of the cabinet body (1) is arranged on the outer side of the cabinet body (1), a cooling device (24) is arranged on one side, far away from the cabinet body (1), of the air inlet fan (2), the cooling device (24) comprises a first coiled pipe (3) arranged on the outer side of the cabinet body (1), the area of the first coiled pipe (3) covers the whole air inlet fan (2), a cooling liquid tank (4) is arranged on the outer side of the cabinet body (1), one end of the first coiled pipe (3) is communicated with the cooling liquid tank (4), the other end of the first coiled pipe (3) is communicated with the cooling liquid tank (4) through a first pump body (5), and an exhaust fan (6) is further arranged on the cabinet body (1),
the utility model discloses a cabinet, including the cabinet body, the cabinet body is equipped with radiating cabinet (7) in the outer one side that just is close to communication equipment (23) of cabinet body (1), be equipped with second coiled pipe (8) in radiating cabinet (7), cabinet body (1) outer wall is hugged closely in second coiled pipe (8) and is coiled the setting, the bottom is equipped with main water tank (9) in radiating cabinet (7), the one end and main water tank (9) the intercommunication of second coiled pipe (8), the other end of second coiled pipe (8) passes through the second pump body (10) and communicates with main water tank (9).
2. The heat dissipation device for outdoor communication cabinets of broadcast televisions of claim 1, wherein: the cabinet is characterized in that a first temperature sensor (11) is arranged in the cabinet body (1), and a second temperature sensor (12) is arranged in the heat dissipation cabinet (7).
3. The heat dissipation device for outdoor communication cabinets of broadcast televisions of claim 1, wherein: the bottom still is equipped with expansion tank (13) in heat dissipation cabinet (7), it is provided with inlet tube (14) and outlet pipe (15) to communicate respectively between expansion tank (13) and main water tank (9), be equipped with third pump body (16) on inlet tube (14).
4. The heat dissipation device for outdoor communication cabinets of broadcast televisions of claim 3, wherein: and a first one-way valve (17) is arranged on the water outlet pipe (15), and water backflow is prevented through the first one-way valve (17).
5. The heat dissipation device for outdoor communication cabinets of broadcast televisions of claim 1, wherein: the air inlet fan (2) and the cooling device (24) are provided with two sets in a set and are respectively arranged on two sides of the cabinet body (1), and the exhaust fan (6) is arranged on the top of the cabinet body (1).
6. The heat dissipation device for outdoor communication cabinets of broadcast televisions according to claim 1 or 5, wherein: the top of the cabinet body (1) is provided with a collecting box (18), the bottom of the collecting box (18) is provided with a guide pipe (19), and the other end of the guide pipe (19) penetrates through the heat dissipation cabinet (7) and is communicated with the second coiled pipe (8).
7. The heat dissipation device for outdoor communication cabinets of broadcast televisions of claim 6, wherein: and a second one-way valve (20) is arranged on the flow guide pipe (19), and the second one-way valve (20) prevents water in the second coiled pipe (8) from flowing into the collecting box (18).
8. The heat dissipation device for outdoor communication cabinets of broadcast televisions of claim 1, wherein: and dust filtering nets (21) are arranged at the air inlets of the air inlet fan (2) and the air outlet fan (6).
9. The heat dissipation device for outdoor communication cabinets of broadcast televisions of claim 1, wherein: the semiconductor refrigerating sheet (22) is arranged at the bottom of the cooling liquid box (4), and the refrigerating surface of the semiconductor refrigerating sheet (22) is in contact with the bottom surface of the cooling liquid box (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110025276.5A CN112822921A (en) | 2021-01-08 | 2021-01-08 | Heat dissipation device for outdoor communication cabinet of broadcast television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110025276.5A CN112822921A (en) | 2021-01-08 | 2021-01-08 | Heat dissipation device for outdoor communication cabinet of broadcast television |
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| Publication Number | Publication Date |
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| CN112822921A true CN112822921A (en) | 2021-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110025276.5A Pending CN112822921A (en) | 2021-01-08 | 2021-01-08 | Heat dissipation device for outdoor communication cabinet of broadcast television |
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| CN (1) | CN112822921A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115623761A (en) * | 2022-11-15 | 2023-01-17 | 苏州惠林节能材料有限公司 | Cooling device for outdoor communication cabinet |
| CN117154580A (en) * | 2023-10-25 | 2023-12-01 | 凯钟电气集团有限公司 | Low-voltage complete switch cabinet |
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| CN210924440U (en) * | 2020-03-05 | 2020-07-03 | 内江巨鼎科技有限责任公司 | Server case |
| CN212063199U (en) * | 2020-04-30 | 2020-12-01 | 杭州华益电气有限公司 | Shockproof heat dissipation low-voltage switch cabinet |
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2021
- 2021-01-08 CN CN202110025276.5A patent/CN112822921A/en active Pending
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| US20130267162A1 (en) * | 2012-04-09 | 2013-10-10 | Chun Long Technology Co., Ltd. | Air discharge structure of industrial cabinet |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115623761A (en) * | 2022-11-15 | 2023-01-17 | 苏州惠林节能材料有限公司 | Cooling device for outdoor communication cabinet |
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| CN117154580A (en) * | 2023-10-25 | 2023-12-01 | 凯钟电气集团有限公司 | Low-voltage complete switch cabinet |
| CN117154580B (en) * | 2023-10-25 | 2024-01-09 | 凯钟电气集团有限公司 | Low-voltage complete switch cabinet |
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Application publication date: 20210518 |
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