CN114256767A - 10kV switch cabinet attached cabinet with explosion-proof and heat-dissipation functions - Google Patents
10kV switch cabinet attached cabinet with explosion-proof and heat-dissipation functions Download PDFInfo
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- CN114256767A CN114256767A CN202111562591.8A CN202111562591A CN114256767A CN 114256767 A CN114256767 A CN 114256767A CN 202111562591 A CN202111562591 A CN 202111562591A CN 114256767 A CN114256767 A CN 114256767A
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- 238000002955 isolation Methods 0.000 claims abstract description 34
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- 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
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- 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
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- 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
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- 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
- H02B1/32—Mounting of devices therein
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
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Abstract
The invention provides an auxiliary cabinet with an explosion-proof heat dissipation function for a 10kV switch cabinet, and belongs to the technical field of switch cabinets. The main box body is fixedly connected with the 10kV switch cabinet, an air inlet and a first air exchange port are formed in the main box body, the isolation cabin is fixed to the lower portion of the main box body, a second air exchange port is formed in one side of the isolation cabin, air outlets are formed in other side faces of the isolation cabin, and the first air exchange port and the second air exchange port are arranged on one side in contact with the 10kV switch cabinet. The invention realizes the air exchange between the switch cabinet and the auxiliary cabinet and the outside by arranging the air exchange port and the air inlet on the auxiliary cabinet, and the lower part of the auxiliary cabinet is also provided with the isolation cabin which can also realize the air exchange with the switch cabinet. The upper and lower groups of air exchange channels are isolated from each other in the use process, so that the problem of air convection generated when the cooling fan operates is solved, and the cooling efficiency in the cabinet is improved.
Description
Technical Field
The invention belongs to the technical field of switch cabinets, and particularly relates to an auxiliary cabinet with an explosion-proof heat dissipation function for a 10kV switch cabinet.
Background
The switch cabinet is an electric device, the external line of the switch cabinet firstly enters a main control switch in the cabinet and then enters a branch control switch, and each branch circuit is arranged according to the requirement. Such as meters, automatic controls, magnetic switches of motors, various alternating current contactors, and the like, some of which are also provided with high-voltage chambers and low-voltage chamber switch cabinets, and high-voltage buses, such as power plants, and some of which are also provided with low-frequency load shedding for keeping main equipment.
The explosion-proof heat dissipation of the existing 10kV switch cabinet of the transformer substation is achieved by preventing explosion shock waves and fragment damage of a single cabinet body, hot air is exhausted outside the cabinet by a fan for heat dissipation, and the explosion-proof heat dissipation method has many problems. Wherein, because the cabinet does not have the fan behind the cubical switchboard, back cabinet does not have radiator fan and also does not have the louvre, and under inside heavy current, the accumulation that generates heat of back cabinet, the temperature risees gradually, and whole cubical switchboard basis temperature risees, has influenced the normal operating of whole cabinet. And the running state of the cooling fan is unreasonable, the useless loss is large, the air convection circulation outside the cabinet in the cabinet can not be prevented, and the cooling effect is reduced.
Disclosure of Invention
In view of the above, the invention aims to solve the problems that when a single cabinet body of the existing 10kV switch cabinet of the transformer substation bears an explosion-proof heat dissipation function, the heat of the rear cabinet is accumulated, the normal operation of the whole cabinet is affected, the operation state of a heat dissipation fan is unreasonable, and the cooling effect is poor due to the convection of air inside and outside the cabinet.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention provides a 10kV switch cabinet attached cabinet with an explosion-proof heat dissipation function, which comprises: the main box body and the isolation cabin;
the main box body is fixed on the 10kV switch cabinet, the upper part of the main box body is provided with an air inlet, and the upper part of the side surface of the main box body, which is in contact with the 10kV switch cabinet, is provided with a first air exchange port;
the isolation cabin is fixed in the lower part of main tank body, and the side of isolation cabin and 10kV cubical switchboard contact one side is equipped with the second air exchange mouth, and other sides in isolation cabin all are equipped with the air outlet.
Further, heat radiation fans are arranged in different areas in the 10kV switch cabinet;
the cooling fan starts when reaching the heat dissipation condition, acquires cold air from the cabinet through air intake and first air exchange mouth to hot air discharges in the cabinet through second air exchange mouth and air outlet.
Further, the cooling fan starts when reaching the heat dissipation condition and specifically includes:
and the cooling fan of each area is started when the temperature of the corresponding area reaches a first set value and/or the humidity reaches a second set value and/or the power utilization peak period.
Further, the air inlet and the first air exchange port are at the same height on the main box body.
Furthermore, a plurality of through holes are formed in the top of the main box body, and plastic screws are arranged in the through holes.
Further, the main box body and the isolation cabin are both made of double-layer aluminum-zinc-coated plates.
Furthermore, one side of the main box body, which is far away from the 10kV switch cabinet, is provided with an observation window, the observation window is composed of a plurality of regular hexagonal honeycomb-shaped double-layer anti-explosion glass structures, a steel wire mesh is clamped in the double-layer structures, and the double-layer anti-explosion glass is made of polycarbonate.
In summary, the invention provides an auxiliary cabinet with an explosion-proof and heat-dissipation function for a 10kV switch cabinet, which comprises a main box body and an isolation cabin, wherein the main box body is fixedly connected with the 10kV switch cabinet, an air inlet and a first air exchange port are arranged on the main box body, the isolation cabin is fixed at the lower part of the main box body, a second air exchange port is arranged at one side of the isolation cabin, air outlets are arranged at other side surfaces, and the first air exchange port and the second air exchange port are both arranged at one side which is in contact with the 10kV switch cabinet. The invention realizes the air exchange between the switch cabinet and the auxiliary cabinet and the outside by arranging the air exchange port and the air inlet on the auxiliary cabinet, and the lower part of the auxiliary cabinet is also provided with the isolation cabin which can also realize the air exchange with the switch cabinet. The upper and lower groups of air exchange channels are isolated from each other in the use process, so that the problem of air convection generated when the cooling fan operates is solved, and the cooling efficiency in the cabinet is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a front view of an auxiliary cabinet of a 10kV switch cabinet with an explosion-proof heat dissipation function, provided by an embodiment of the present invention;
fig. 2 is a right side view of an auxiliary cabinet of a 10kV switch cabinet with an explosion-proof and heat-dissipation function according to an embodiment of the invention;
fig. 3 is a rear view of an auxiliary cabinet of a 10kV switch cabinet with an explosion-proof and heat-dissipation function according to an embodiment of the invention;
fig. 4 is a first axonometric view of an auxiliary cabinet of a 10kV switch cabinet with an explosion-proof and heat-dissipation function provided by the embodiment of the invention;
fig. 5 is a second axial view of an attached 10kV switch cabinet with an explosion-proof heat dissipation function according to an embodiment of the present invention.
In the drawings: 1-front middle door sealing plate, 2-observation window, 3-filter screen, 4-isolation cabin, 5-air inlet, 6-front right door sealing plate, 7-first air exchange port, 8-second air exchange port and 9-through hole.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below 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.
The explosion-proof heat dissipation of the existing transformer substation 10kV switch cabinet is prevented from being damaged by explosion shock waves and fragments by a single cabinet body, and heat dissipation is realized by exhausting hot air into the cabinet by a fan, so that the following problems exist in the explosion-proof heat dissipation method: 1) the rear cabinet of the switch cabinet is not explosion-proof, the cabinet body only has the function of isolating an electric carrier, the metal cabinet body has a conductive risk, when a fan does not rotate or the overload operation air pressure in the cabinet is too high, the cabinet door is opened, parts such as an inner sleeve pipe and a CT (computed tomography) in the cabinet are exploded out at a high speed, and the personal safety is damaged; 2) the rear cabinet of the switch cabinet has no fan and no heat dissipation holes, and the rear cabinet has no heat dissipation fan and no heat dissipation holes, so that under the condition of internal heavy current, the rear cabinet generates heat and accumulates, the temperature gradually rises, the base temperature of the whole switch cabinet rises, and the normal operation of the whole cabinet is further influenced; 3) at present, a fan starting mode is started through a current relay (namely a starting current value is reached, the relay is electrified to start the fan, the fan is smaller than the starting current value, and the fan does not act), because poor contact possibly occurs in a switch cabinet, the switch cabinet can also generate heat under the condition of smaller current, the current flowing through the relay is too small at the moment, the starting condition of a motor is not reached, and heat cannot be discharged in time; 4) the running state of the fan is unreasonable, the useless loss is large, the air convection circulation outside the cabinet in the cabinet can not be prevented, and the cooling effect is reduced.
Based on the structure, the invention provides a schematic structural diagram of an auxiliary cabinet of a 10kV switch cabinet with an explosion-proof heat dissipation function.
The following is a detailed description of an embodiment of the invention, which is a 10kV switch cabinet with an explosion-proof and heat-dissipation function.
Referring to fig. 1-3, the present embodiment provides an auxiliary cabinet with explosion-proof and heat-dissipation functions for a 10kV switch cabinet, including: a main tank and a compartment 4.
In the embodiment, the main box body is fixed on the 10kV switch cabinet, the upper part of the main box body is provided with the air inlet 5, and the upper part of the side surface of the main box body, which is in contact with the 10kV switch cabinet, is provided with the first air exchange port 7.
It should be noted that the main box body is a main body structure of the auxiliary cabinet, and mainly bears the shock wave and fragment damage generated by the heating explosion of the 10kV switch cabinet of the transformer substation. The main box body can be selectively arranged into a flat rectangular structure and is formed by assembling a plurality of sealing plates. The main box body is a back surface on the side contacting with the 10kV switch cabinet, the side opposite to the back surface is a front surface (namely a front middle door sealing plate 1), and two sides are side surfaces (namely a front right door sealing plate 6).
In order to ensure the integral structural strength of the main box body and prevent tiny fragments from splashing out through the main box body, the air inlet 5 and the first air exchange port 7 are arranged in a staggered mode. Since the first air exchange port 7 needs to be arranged close to the 10kV switch cabinet, i.e. on the side (i.e. the back) of the main box body contacting the 10kV switch cabinet, the air inlet 5 is arranged on the side of the main box body. First air exchange mouth 7 is provided with the filter screen, and it is as gas exchange channel, can play dustproof and prevent that the toy prevents that the foreign matter from getting into and causing the equipment short circuit, adopts the screw fixed can dismantle the change cleanness.
The area of the first air exchange port 7 is too large to cause the structural strength to be reduced, and the area is too small to influence the heat dissipation effect, so that the first air exchange port should be specifically set according to the overall structural strength and the safety requirement. The air inlet 5 can be provided with a wind shield to play a role in inhibiting dust from blocking wind. Can guarantee that the wind blows in the cabinet softly, prevent that the interior dust of cabinet from gathering, prevent that the frost condensation dew of condensation from causing creepage pollution flashover and reduce the problem of cabinet internal insulation level. The height of the air inlet 5 is adapted to the height of the first air exchange opening 7.
In addition, as shown in fig. 4-5, a plurality of (preferably 8) through holes 9 are arranged in parallel and symmetrically at the top of the attached cabinet, and the through holes 9 are filled with plastic screws. The function of the pressure release device is that when the heat radiation fan does not rotate or the air pressure is too high due to overload operation in the switch cabinet, the air pressure of the auxiliary cabinet is also increased. Because the effect of hot-air, attach cabinet top pressure this moment and be the highest, regard it as whole device weakest department (feeling the most obvious department to atmospheric pressure rising promptly), when the sudden grow of pressure, the plastic screw can bounce, has avoided the cabinet door to be washed out, the condition that spare part high-speed impact in the cabinet. The safety of a person is guaranteed, the pressure relief effect is achieved, when the pressure of the rear attached cabinet is too large, the plastic screw automatically bounces to release the pressure, and the pressure relief protection device has the effect of pressure relief.
In this embodiment, the isolation cabin 4 is fixed at the lower part of the main box, the side of the isolation cabin 4 contacting with the 10kV switch cabinet is provided with a second air exchange port 8, and other sides of the isolation cabin 4 are provided with air outlets 3.
It should be noted that the compartment 4 may be configured as a main box, and may be designed as a flat rectangular body. The whole size is set according to the actual situation. One side (namely the back) of the isolation cabin 4 close to the 10kV switch cabinet is provided with a second air exchange port 8, and the other sides are provided with air outlets 3.
The isolation chamber 4 is an independent space from the main cabinet, and is mainly used for discharging hot air from the switch cabinet. Similarly, in order to achieve the heat dissipation efficiency and prevent the fragments from splashing, the second air exchange port 8 is also provided with a filter screen and is set to be a long strip. The filter screens on other side surfaces can be arranged larger, so that hot air in the cabinet can be conveniently discharged.
And the air outlet 3 (namely the filter screen on the peripheral side of the isolation cabin) is designed on the lower side of the rear attached cabinet, so that air can be exhausted more quickly and timely, and the air is prevented from being accumulated in the backflow switch cabinet. The bottom air outlet 3 is provided with an independent isolation cabin which is separated from the rear attached cabinet, so that sucked air is ensured to flow into the switch cabinet and is separated from air exhausted from the switch cabinet, no hot and cold air convection exists, the cooling efficiency is improved, and the safety below the legs of field personnel is protected by an additional isolation layer when the switch cabinet explodes.
Furthermore, the main box body and the isolation cabin 4 are both made of double-layer aluminum-zinc coated plates, and the material has the advantages of no hysteresis loss, corrosion resistance, rust resistance, excellent heat resistance, oxidation resistance, static resistance, good adhesive force, high mechanical strength, good anti-cracking performance, water resistance, wear resistance, oil resistance, good insulating performance and good dust suppression rate.
And an observation window 2 is further provided outside (i.e., on the front) of the main case. The observation window 2 is made of double-layer explosion-proof glass, a steel wire mesh is sandwiched between the glass, the glass is made of polycarbonate, and the observation window 2 is composed of a plurality of hollow bodies in a regular hexagon honeycomb shape with the same size in an alternating mode. When meetting cubical switchboard short circuit explosion and strike, the polycarbonate can not be broken, and the wire net can block the fragment impact force, and the observation window stability that regular hexagon honeycomb formed is strong, and the pulling force is strong, the fracture condition can not appear.
In addition, an electrified display device can be arranged on the rear side of the auxiliary cabinet, inspection personnel can conveniently check the electrified display device, the electrified display device is wirelessly connected with the background terminal, and when a fault occurs, the background terminal displays sound and light.
The embodiment provides a take explosion-proof heat dissipation function's 10kV cubical switchboard attaches cabinet, including the main tank body and isolation cabin 4, wherein main tank body and 10kV cubical switchboard fixed connection, be provided with air intake 5 and first air exchange mouth 7 on the main tank body, the main tank body lower part is fixed with isolation cabin 4, isolation cabin 4 one side is equipped with second air exchange mouth 8, other sides all are provided with the air outlet net, first air exchange mouth 7 and second air exchange mouth 8 all set up in the one side with 10kV cubical switchboard contact. The invention realizes the air exchange between the switch cabinet and the auxiliary cabinet and the outside by arranging the air exchange port and the air inlet on the auxiliary cabinet, and the lower part of the auxiliary cabinet is also provided with the isolation cabin which can also realize the air exchange with the switch cabinet. The upper and lower groups of air exchange channels are isolated from each other in the use process, so that the problem of air convection generated when the cooling fan operates is solved, and the cooling efficiency in the cabinet is improved.
The 10kV cubical switchboard that this embodiment provided attaches the cabinet and adopts double-deck design, inhales exhaust air convection and staggers, improves the radiating effect. When explosion accidents such as arc discharge and the like occur to the switch cabinet, the double-layer aluminum-zinc-coated plate plays an explosion-proof role, prevents parts from rushing out to hurt a human body, prevents electric arc from hurting the human body, prevents high-temperature and high-pressure gas from hurting the human body, and protects important body parts such as the head of field operation personnel.
The above is a detailed description of an embodiment of the auxiliary cabinet with the explosion-proof and heat-dissipation function for the 10kV switch cabinet of the invention, and the following is a detailed description of another embodiment of the auxiliary cabinet with the explosion-proof and heat-dissipation function for the 10kV switch cabinet of the invention.
The embodiment provides a 10kV cubical switchboard of explosion-proof heat dissipation function in area attaches cabinet, includes the main tank body and isolation cabin.
In this embodiment, the specific arrangement of the main box and the isolation chamber is the same as that of the previous embodiment, and will not be described herein.
In this embodiment, each region all is provided with cooling fan in the cubical switchboard, and different cooling fans are responsible for the heat dissipation in different regions.
When the heat dissipation condition is met, the heat dissipation fan is started when the heat dissipation condition is met, cold air is obtained from the outside of the cabinet through the air inlet and the first air exchange port, hot air in the cabinet is discharged through the second air exchange and the filter screen, and therefore heat dissipation treatment is achieved.
Specifically, the starting of the cooling fan when the cooling condition is met specifically includes that the cooling fan of each area is started when the temperature of the corresponding area reaches a first set value and/or the humidity reaches a second set value and/or the power consumption peak period. Namely, the control of the cooling fan is started through humidity, temperature and historical data, and the cooling fan can be started when meeting a condition. The temperature data is obtained by a temperature probe, a humidity sensor, a radio frequency sensor, an infrared remote thermometer and the like; historical data is started, according to the information of a historical database, a historical power utilization peak underestimation area is started in advance in a power utilization peak period, and the historical data is stopped in advance in a power utilization valley period; when the temperature in the switch cabinet is higher than the temperature set value and the return difference value, the fan is started, when the temperature in the switch cabinet is lower than the temperature set value and the return difference value, the fan is stopped, when the humidity in the switch cabinet is higher than the humidity set value and the return difference value, the fan is started, and when the humidity in the switch cabinet is lower than the humidity set value and the return difference value, the fan is stopped.
The 10kV switch cabinet with the explosion-proof and heat-dissipation functions provided by the embodiment is started according to any data such as humidity, temperature and historical data by matching with the heat-dissipation fans in different areas, the heat-dissipation conditions of the different areas are finely controlled, and the problem that the temperature change conditions of the different areas in the switch cabinet are inconsistent is effectively taken care of. The design of the double-layer cabinet body of the auxiliary cabinet is matched, the upper air and the lower air do not generate convection, and the cooling efficiency in the cabinet is further improved.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. The utility model provides a 10kV cubical switchboard of explosion-proof heat dissipation function in area attaches cabinet which characterized in that includes: the main box body and the isolation cabin;
the main box body is fixed on a 10kV switch cabinet, an air inlet is formed in the upper portion of the main box body, and a first air exchange port is formed in the upper portion of the side face of the main box body, which is in contact with the 10kV switch cabinet;
the isolation cabin is fixed in the lower part of the main box body, a second air exchange port is formed in the side face of one side, in contact with the 10kV switch cabinet, of the isolation cabin, and air outlets are formed in other side faces of the isolation cabin.
2. The 10kV switch cabinet auxiliary cabinet with the explosion-proof and heat-dissipation functions as claimed in claim 1, wherein heat-dissipation fans are arranged in different areas in the 10kV switch cabinet;
the heat dissipation fan is started when reaching a heat dissipation condition, obtains cold air from the outside of the cabinet through the air inlet and the first air exchange port, and discharges hot air in the cabinet through the second air exchange port and the air outlet.
3. The 10kV switch cabinet attached cabinet with the explosion-proof and heat-dissipation functions as claimed in claim 2, wherein the starting of the heat-dissipation fan when reaching the heat-dissipation condition specifically comprises:
and the cooling fan of each area is started when the temperature of the corresponding area reaches a first set value and/or the humidity reaches a second set value and/or the power utilization peak period.
4. The 10kV switch cabinet auxiliary cabinet with the explosion-proof and heat-dissipation functions as claimed in claim 2, wherein the air inlet and the first air exchange port are at the same height on the main cabinet body.
5. The 10kV switch cabinet auxiliary cabinet with the explosion-proof and heat-dissipation functions as claimed in claim 1, wherein a plurality of through holes are formed in the top of the main cabinet body, and plastic screws are arranged in the through holes.
6. The 10kV switch cabinet auxiliary cabinet with the explosion-proof and heat-dissipation functions as claimed in claim 1, wherein the main cabinet body and the isolation cabin are both made of double-layer aluminum-zinc-coated plates.
7. The 10kV switch cabinet auxiliary cabinet with the explosion-proof and heat-dissipation functions as claimed in claim 1, wherein an observation window is arranged on one side of the main cabinet body, which is far away from the 10kV switch cabinet, and the observation window is composed of a plurality of regular hexagonal honeycomb double-layer explosion-proof glass structures, steel wire meshes are clamped in the double-layer structures, and the double-layer explosion-proof glass is made of polycarbonate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111562591.8A CN114256767A (en) | 2021-12-20 | 2021-12-20 | 10kV switch cabinet attached cabinet with explosion-proof and heat-dissipation functions |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111562591.8A CN114256767A (en) | 2021-12-20 | 2021-12-20 | 10kV switch cabinet attached cabinet with explosion-proof and heat-dissipation functions |
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| CN202111562591.8A Pending CN114256767A (en) | 2021-12-20 | 2021-12-20 | 10kV switch cabinet attached cabinet with explosion-proof and heat-dissipation functions |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117595128A (en) * | 2024-01-18 | 2024-02-23 | 江苏德春电力科技股份有限公司 | Heat dissipation type closed combined switch cabinet |
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|---|---|---|---|---|
| CN204696474U (en) * | 2015-06-29 | 2015-10-07 | 益阳欣达天马电器设备制造有限公司 | A kind of explosion door for switch cabinet |
| US20170150642A1 (en) * | 2015-11-20 | 2017-05-25 | Eaton Corporation | Electrical enclosure with ventilation structure |
| CN211480673U (en) * | 2020-02-25 | 2020-09-11 | 福州兴邦电力设备公司 | Forced ventilation heat dissipation's low-voltage switchgear |
| CN112909811A (en) * | 2021-02-05 | 2021-06-04 | 广州白云电器设备股份有限公司 | Large-current air insulation switch cabinet |
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| CN117595128A (en) * | 2024-01-18 | 2024-02-23 | 江苏德春电力科技股份有限公司 | Heat dissipation type closed combined switch cabinet |
| CN117595128B (en) * | 2024-01-18 | 2024-03-29 | 江苏德春电力科技股份有限公司 | Heat dissipation type closed combined switch cabinet |
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