CN116799668B - Efficient heat dissipation power distribution cabinet - Google Patents
Efficient heat dissipation power distribution cabinet Download PDFInfo
- Publication number
- CN116799668B CN116799668B CN202310741629.0A CN202310741629A CN116799668B CN 116799668 B CN116799668 B CN 116799668B CN 202310741629 A CN202310741629 A CN 202310741629A CN 116799668 B CN116799668 B CN 116799668B
- Authority
- CN
- China
- Prior art keywords
- cabinet body
- cavity
- power distribution
- air inlet
- inner cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 17
- 238000001816 cooling Methods 0.000 claims description 21
- 239000004065 semiconductor Substances 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 10
- 239000000428 dust Substances 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 4
- 239000002274 desiccant Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model discloses a high-efficiency heat-dissipation power distribution cabinet which comprises a cabinet body, wherein a mounting frame is arranged in the cabinet body, a module is mounted on the mounting frame, an inner cavity is arranged in the module, heat dissipation fins are arranged in the inner cavity, an air inlet pipe is slidably mounted at the top of the inner cavity, a plurality of openings are formed in the side wall of the end part of the air inlet pipe, and an air outlet is formed in the bottom of the inner cavity; square tubes are arranged in the cabinet body and connected with a first main tube through connecting tubes, the first main tube is connected with a cold air device arranged in the cabinet body, through holes matched with the air inlet tubes are arranged in the square tubes, and cover plates are elastically arranged at the through holes; the bottom and the top of the cabinet body are respectively provided with a fan cover, and the fan covers cool the cabinet body through a circulating cold air system; the utility model has high heat dissipation efficiency and good safety.
Description
Technical Field
The utility model relates to the technical field of power equipment, in particular to a high-efficiency heat dissipation power distribution cabinet.
Background
The power distribution cabinet is an electrical device, and has the main functions of opening and closing, controlling and protecting electric equipment in the process of generating, transmitting, distributing and converting electric energy of a power system. The components in the power distribution cabinet mainly comprise a breaker, a disconnecting switch, a load switch, an operating mechanism, various protection devices and the like; various switch modules can generate heat in the power distribution cabinet, excessive heat cannot be emitted out, equipment is easy to age, and the service life of the equipment is shortened; the utility model provides a switch board of patent number CN209516424U has mentioned a switch board's heat dissipation scheme, and it reduces the internal air's of cabinet temperature through improving the velocity of air circulation, and then makes each components and parts gradually cool down, also adopts this kind of technical scheme to dispel the heat to the switch board in the prior art more, and this kind of technical scheme makes each components and parts dispel the heat slowly, and to the components and parts that calorific capacity is big, this mode is not good to the radiating effect of components and parts in the switch board.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides a high-efficiency heat-dissipation power distribution cabinet.
The utility model is realized by the following technical scheme:
the utility model provides a high-efficient heat dissipation power distribution cabinet, includes the cabinet body, installs the module in the cabinet body, the internal range of cabinet is provided with the mounting bracket, installs the module on the mounting bracket, is provided with the inner chamber in the module, is provided with the heat dissipation wing in the inner chamber, and the top slidable mounting of inner chamber has the air-supply line, and the air-supply line adopts screw nut mechanism to drive, and the lateral wall of air-supply line tip is provided with a plurality of openings, and the air outlet has been seted up to the bottom of inner chamber; square tubes are arranged in the cabinet body and connected with the first main pipe through connecting pipes, through holes matched with the air inlet pipes are arranged in the square tubes, and cover plates are elastically arranged at the through holes; the bottom and the top of the cabinet body are provided with a fan cover, one surface of the fan cover is provided with a plurality of air openings, and one side of the fan cover is connected with a second main pipe through a plurality of branch pipes; an air outlet cavity is arranged in the cabinet body and connected with a cooling cavity, a semiconductor refrigerator is arranged on one side of the cooling cavity, the cooling cavity is connected with a circulating cavity, and an axial flow fan is arranged in the circulating cavity; the first main pipe is connected with the air outlet cavity, the second main pipe of the cabinet bottom fan housing is connected with the air outlet cavity through a pipeline, and the second main pipe of the cabinet top fan housing is connected with the circulating cavity through a pipeline.
Preferably, a slideway is arranged at the top of the inner cavity, a screw rod is rotatably arranged on the slideway, a nut matched with the screw rod is arranged on the screw rod, the nut is matched with the slideway, and the nut is connected with the air inlet pipe; one end of the screw rod is provided with a worm wheel, one side of the worm wheel is rotatably provided with a worm matched with the worm wheel, and one end of the worm extends out of the module and is connected with a hexagonal knob.
Preferably, one side of the square tube is a back plate, two ends of the cover plate are connected with sliding rods, the sliding rods penetrate through the back plate and are connected with a baffle, and a tension spring is arranged between the baffle and the back plate.
Preferably, a cushion pad is arranged at the through hole.
Preferably, the cold end of the semiconductor refrigerator extends into the cooling cavity from one side of the cooling cavity, and the cold end of the conductor refrigerator is provided with a heat insulation plate.
Preferably, a radiating opening is formed in the side wall of the cabinet body at the semiconductor refrigerator, and a dust screen is arranged at the radiating opening.
Preferably, a drying box is arranged in the air outlet cavity, and a drying agent is placed in the drying box.
The beneficial effects of the utility model are as follows: according to the utility model, the internal of the cabinet body can be cooled by the cold air circulated internally, and meanwhile, each module can be cooled, so that the heat dissipation efficiency of each module in the power distribution cabinet is greatly improved; the drying box is arranged in the air outlet cavity, so that air can be dried, the drying environment in the cabinet body is kept through internal circulation, and the damage of modules or circuits caused by small liquid drops generated by blowing of cold air is prevented.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
Fig. 1 is an isometric view of the present utility model.
Fig. 2 is a front view of the present utility model.
Fig. 3 is a cross-sectional view taken along the direction a of fig. 2.
Fig. 4 is an enlarged view at a of fig. 3.
Fig. 5 is an enlarged view at B of fig. 3.
Fig. 6 is a cross-sectional view in the B direction of fig. 2.
Fig. 7 is a top view of the present utility model.
Fig. 8 is a cross-sectional view in the direction a of fig. 7.
Fig. 9 is a rear view of the present utility model.
Fig. 10 is an isometric view of a module of the present utility model.
Fig. 11 is a front view of the module of the present utility model.
Fig. 12 is a cross-sectional view in the direction a of fig. 11.
Fig. 13 is an isometric view of the structure at the air inlet duct of the present utility model.
In the drawing, 1, a cabinet body, 2, a module, 3, an inner cavity, 4, a heat radiating fin, 5, an air inlet pipe, 6, an opening, 7, a screw rod, 8, a worm wheel, 9, a worm, 10, a slideway, 11, a square pipe, 12, a back plate, 13, a buffer pad, 14, a cover plate, 15, a slide bar, 16, a baffle, 17, a tension spring, 18, a first main pipe, 19, a fan housing, 20, a branch pipe, 21, a second main pipe, 22, an air outlet cavity, 23, a cooling cavity, 24, a semiconductor refrigerator, 25, a circulation cavity, 26, an axial flow fan, 27, a drying box, 28, a dust screen, 29, an air outlet, 30 and a nut.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature's illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "under" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "lower" may encompass both an upper and lower orientation.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The utility model is described in detail below with reference to the attached drawing figures: the utility model relates to a high-efficiency heat-dissipation power distribution cabinet which comprises a cabinet body 1, wherein a mounting frame is arranged in the cabinet body 1, a module 2 is mounted on the mounting frame, an inner cavity 3 is arranged in the module 2, a heat dissipation fin 4 is arranged in the inner cavity 3, an air inlet pipe 5 is slidably mounted at the top of the inner cavity 3, a slide way 10 is arranged at the top of the inner cavity 3, a screw rod 7 is rotatably mounted in the slide way 10, a nut 30 matched with the screw rod 7 is mounted on the screw rod 7, the nut 30 is matched with the slide way 10, the nut 30 is connected with the air inlet pipe 5, a worm wheel 8 is mounted at one end of the screw rod 7, a worm 9 matched with the worm wheel 8 is rotatably mounted at one side of the worm wheel 8, and one end of the worm extends out of the module 2 and is connected with a hexagonal knob; the side wall of the end part of the air inlet pipe 5 is provided with a plurality of openings 6, and the bottom of the inner cavity 3 is provided with an air outlet 29; square tubes 11 are arranged in the cabinet body 1, the square tubes 11 are connected with a first main tube 19 through connecting tubes, through holes matched with the air inlet tubes are arranged on the square tubes 11, buffer cushions 13 are arranged at the through holes, cover plates 14 are elastically installed at the through holes, the elastically installed cover plates 14 can block the through holes when the modules 2 are not installed, and cold air is prevented from leaking out from the through holes at the positions where the modules 2 are not installed; the bottom and the top of the cabinet body 1 are provided with a fan cover 19, one surface of the fan cover 19 is provided with a plurality of air inlets, one side of the fan cover 19 is connected with a second main pipe 21 through a plurality of branch pipes 20, and the arrangement of the multi-path branch pipes 20 can enable air outlet or air suction of the fan cover 19 to be more uniform; an air outlet cavity 22 is arranged in the cabinet body 1, the air outlet cavity 22 is connected with a cooling cavity 23, a semiconductor refrigerator 24 is arranged on one side of the cooling cavity 23, the semiconductor refrigerator 24 can cool air passing through the cooling cavity 23, the cooling cavity 23 is connected with a circulating cavity 25, and an axial flow fan 26 is arranged in the circulating cavity 25; the first main pipe 18 is connected with the air outlet cavity 22, the second main pipe 21 of the air cover 19 at the bottom of the cabinet body 1 is connected with the air outlet cavity 22 through a pipeline, the second main pipe 21 of the air cover 19 at the top of the cabinet body 1 is connected with the circulating cavity 25 through a pipeline, and air in the cabinet body 1 can be driven by the axial flow fan 26 to circulate from bottom to top through the air covers 19 at the top and the bottom.
One side of the square tube 11 is provided with a back plate 12, the back plate 12 and the square tube 11 can be connected by adopting technical means such as threaded connection and welding, two ends of the cover plate 14 are connected with slide bars 15, the slide bars 15 penetrate through the back plate 12 and are connected with a baffle 16, and tension springs 17 are arranged between the baffle 16 and the back plate 12; in the installation process, firstly, the cover plate 14, the slide bar 15, the baffle 16 and the tension spring 17 are installed on the back plate, then the back plate 12 is connected with the square tube 11 to complete the installation of the square tube 11, and the back plate 12 is installed in the cabinet body 1 through screws, so that the square tube 11 is fixedly installed in the cabinet body 1.
The cold end of the semiconductor refrigerator 24 extends into the cooling cavity 23 from one side of the cooling cavity 23, a heat insulation plate is arranged at the cold end of the semiconductor refrigerator 24, a heat radiation opening is formed in the side wall of the cabinet body 1 at the semiconductor refrigerator 24, and a dust screen 28 is arranged at the heat radiation opening.
The drying box 27 is arranged in the air outlet cavity 22, a drying agent is placed in the drying box 27, the drying box 27 can dry the blown air, and then the air in the cabinet body 1 is kept dry by circulating air in the cabinet body 1, so that the moist hot air in the cabinet body 1 is prevented from generating small liquid drops due to temperature reduction.
When the module 2 is installed, the air inlet pipe 5 of the module 2 is aligned with the through hole on the square pipe 11 and then is installed on the installation frame, after the module 2 is installed, the hexagonal knob is screwed by the wrench, the screw rod 7 is rotated under the transmission of the worm gear and the worm, and then the air inlet pipe 5 is driven to move by the screw rod nut mechanism, the end part of the air inlet pipe 5 can push the cover plate 14 and gradually extend into the square pipe 11, after the opening 6 at the end part of the air inlet pipe 5 completely extends into the square pipe 11, the module 2 completes the installation work, cold air in the square pipe 11 can enter the air inlet pipe 5 through the opening 6, then enters the inner cavity 3 to cool the heat dissipation fins, cooling of the module is realized through the heat conduction effect of the heat dissipation fins 4, air in the inner cavity 3 can be blown out from the air outlet 30, the circulating air from bottom to top enters the cooling cavity 23 under the driving of the circulating air, and the cooling cavity 25 is blown into the inner cavity 3 of the cabinet body or the inner cavity 3 of the module 2 again after cooling of the semiconductor refrigerator 24.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
Claims (6)
1. The utility model provides a high-efficient heat dissipation power distribution cabinet, includes the cabinet body (1), installs module (2), its characterized in that in the cabinet body: the novel intelligent cabinet temperature control device is characterized in that a mounting frame is arranged in the cabinet body (1), a module (2) is mounted on the mounting frame, an inner cavity (3) is formed in the module (2), a heat dissipation fin (4) is arranged in the inner cavity (3), an air inlet pipe (5) is slidably mounted at the top of the inner cavity (3), the air inlet pipe (5) is driven by a screw nut mechanism, a slide way (10) is arranged at the top of the inner cavity (3), a screw (7) is rotatably mounted on the slide way (10), a nut (30) matched with the screw (7) is mounted on the screw (7), the nut (30) is matched with the slide way (10), and the nut (30) is connected with the air inlet pipe (5); one end of the screw rod (7) is provided with a worm wheel (8), one side of the worm wheel (8) is rotatably provided with a worm (9) matched with the worm wheel, and one end of the worm extends out of the module (2) and is connected with a hexagonal knob; the side wall of the end part of the air inlet pipe (5) is provided with a plurality of openings (6), and the bottom of the inner cavity (3) is provided with an air outlet (29); square tubes (11) are arranged in the cabinet body (1), the square tubes (11) are connected with a first main tube (19) through connecting tubes, through holes matched with the air inlet tubes are arranged on the square tubes (11), and cover plates (14) are elastically arranged at the through holes; the bottom and the top of the cabinet body (1) are provided with a fan cover (19), one surface of the fan cover (19) is provided with a plurality of air openings, and one side of the fan cover (19) is connected with a second main pipe (21) through a plurality of branch pipes (20); an air outlet cavity (22) is arranged in the cabinet body (1), the air outlet cavity (22) is connected with a cooling cavity (23), a semiconductor refrigerator (24) is arranged on one side of the cooling cavity (23), the cooling cavity (23) is connected with a circulating cavity (25), and an axial flow fan (26) is arranged in the circulating cavity (25); the first main pipe (18) is connected with the air outlet cavity (22), the second main pipe (21) of the fan cover (19) at the bottom of the cabinet body (1) is connected with the air outlet cavity (22) through a pipeline, and the second main pipe (21) of the fan cover (19) at the top of the cabinet body (1) is connected with the circulating cavity (25) through a pipeline.
2. The high-efficiency heat-dissipating power distribution cabinet of claim 1, wherein: one side of square pipe (11) is backplate (12), the both ends of apron (14) are connected with slide bar (15), and slide bar (15) pass backplate (12) and are connected with baffle (16), install extension spring (17) between baffle (16) and backplate (12).
3. The high-efficiency heat-dissipating power distribution cabinet of claim 1, wherein: and a buffer pad (13) is arranged at the through hole.
4. The high-efficiency heat-dissipating power distribution cabinet of claim 1, wherein: the cold end of the semiconductor refrigerator (24) extends into the cooling cavity (23) from one side of the cooling cavity (23), and a heat insulation plate is arranged at the cold end of the semiconductor refrigerator (24).
5. The high-efficiency heat-dissipating power distribution cabinet of claim 1, wherein: a radiating opening is formed in the side wall of the cabinet body (1) at the position of the semiconductor refrigerator (24), and a dust screen (28) is arranged at the radiating opening.
6. The high-efficiency heat-dissipating power distribution cabinet of claim 1, wherein: a drying box (27) is arranged in the air outlet cavity (22), and a drying agent is placed in the drying box (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310741629.0A CN116799668B (en) | 2023-06-21 | 2023-06-21 | Efficient heat dissipation power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310741629.0A CN116799668B (en) | 2023-06-21 | 2023-06-21 | Efficient heat dissipation power distribution cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116799668A CN116799668A (en) | 2023-09-22 |
| CN116799668B true CN116799668B (en) | 2024-02-13 |
Family
ID=88038404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310741629.0A Active CN116799668B (en) | 2023-06-21 | 2023-06-21 | Efficient heat dissipation power distribution cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116799668B (en) |
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| CN103023348A (en) * | 2011-09-22 | 2013-04-03 | 上海南泰整流器有限公司 | Rectifier module air duct for forcing to dissipate heat |
| JP2014003788A (en) * | 2012-06-18 | 2014-01-09 | Mitsubishi Electric Corp | Control board |
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| CN213879686U (en) * | 2020-12-16 | 2021-08-03 | 天津中控海容科技有限公司 | Dustproof box body for frequency converter |
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| CN214337315U (en) * | 2021-02-08 | 2021-10-01 | 营口市宏涛电力设备有限公司 | Power distribution cabinet heat dissipation device for community electric room |
| CN113873831A (en) * | 2021-09-14 | 2021-12-31 | 江苏银佳企业集团有限公司 | EPS emergency power supply with combined type rapid cooling structure and cooling method |
| CN218415474U (en) * | 2022-06-28 | 2023-01-31 | 贵州乌江水电开发有限责任公司 | Dampproofing low-voltage cabinet electrical protection device who easily maintains |
| CN219067527U (en) * | 2022-06-30 | 2023-05-23 | 山东金海鑫电器设备有限公司 | Switch cabinet convenient for heat dissipation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI426861B (en) * | 2011-04-08 | 2014-02-11 | Sunonwealth Electr Mach Ind Co | Radiator of a horizontal convection fan |
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2023
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|---|---|---|---|---|
| DE102005017942A1 (en) * | 2005-04-18 | 2006-10-26 | Asia Vital Component Co., Ltd., Hsin Chuan | Cooling module for cooling goods, has radial fans that are arranged at two sides of heat sink and air flow produced by fans is distributed evenly into heat sink, where air flow is intensified through ducts |
| CN103023348A (en) * | 2011-09-22 | 2013-04-03 | 上海南泰整流器有限公司 | Rectifier module air duct for forcing to dissipate heat |
| JP2014003788A (en) * | 2012-06-18 | 2014-01-09 | Mitsubishi Electric Corp | Control board |
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| CN211351424U (en) * | 2020-02-07 | 2020-08-25 | 沈阳旺家电力设备有限公司 | Switch board that possesses illumination function |
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| CN214337315U (en) * | 2021-02-08 | 2021-10-01 | 营口市宏涛电力设备有限公司 | Power distribution cabinet heat dissipation device for community electric room |
| CN113260236A (en) * | 2021-07-02 | 2021-08-13 | 恒基电子(泰州)有限公司 | Heat dissipation device for general electrical equipment |
| CN113873831A (en) * | 2021-09-14 | 2021-12-31 | 江苏银佳企业集团有限公司 | EPS emergency power supply with combined type rapid cooling structure and cooling method |
| CN218415474U (en) * | 2022-06-28 | 2023-01-31 | 贵州乌江水电开发有限责任公司 | Dampproofing low-voltage cabinet electrical protection device who easily maintains |
| CN219067527U (en) * | 2022-06-30 | 2023-05-23 | 山东金海鑫电器设备有限公司 | Switch cabinet convenient for heat dissipation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116799668A (en) | 2023-09-22 |
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