CN111371027A - Airtight high-low voltage power distribution cabinet that many places were suitable for - Google Patents
Airtight high-low voltage power distribution cabinet that many places were suitable for Download PDFInfo
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- CN111371027A CN111371027A CN202010359459.6A CN202010359459A CN111371027A CN 111371027 A CN111371027 A CN 111371027A CN 202010359459 A CN202010359459 A CN 202010359459A CN 111371027 A CN111371027 A CN 111371027A
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- power distribution
- heat exchange
- distribution cabinet
- low voltage
- cavity
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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
-
- 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)
Abstract
The invention relates to the technical field of high-low voltage complete equipment, and provides a multi-site applicable closed high-low voltage power distribution cabinet, aiming at solving the problems that when the existing high-low voltage power distribution cabinet is provided with a closed function, heat generated by the operation of an electric element arranged inside cannot be dissipated in time, on one hand, the electric element in the cabinet body is easy to age, and on the other hand, the electric element is burnt due to high temperature in the cabinet body. The invention can be applied to multiple places and has higher social use value and application prospect.
Description
Technical Field
The invention relates to the technical field of high-low voltage complete equipment, in particular to a multi-site applicable closed high-low voltage power distribution cabinet.
Background
High-low voltage distribution cabinet, the power distribution equipment who is used for carrying on the electric energy distribution among the power supply system as the name implies, control, measurement and connecting cable, general power supply office, the electric substation all uses high tension switchgear, then draw forth low-voltage distribution cabinet through transformer step-down low voltage side, low-voltage distribution cabinet arrives each distribution board of power consumption again, the control box, the switch box, the inside is through assembling into an organic whole the equipment that reaches the distribution device of design function requirement with some switches, circuit breaker, fuse, button, pilot lamp, instrument, protection device such as electric wire.
Present high-low voltage power distribution cabinet is applicable to indoor arrangement more, when using in outdoor and other places, need correspond to be equipped with airtight function, in order to guarantee dustproof and waterproof and theftproof, but when having guaranteed that the cabinet body is airtight, the heat that internally mounted's electric elements operation produced can't in time spill, make electric elements work under the environment of higher temperature, cause the internal electric elements of cabinet ageing on the one hand easily, on the other hand, the internal high temperature of cabinet can produce the potential safety hazard in the aspect of the electric power, lead to electric elements to burn out.
The patent of publication No. CN207588249U discloses a switch board that anticollision and performance are good, and it includes the cabinet body, be equipped with the cabinet door on the cabinet body, be equipped with insulating the pad on the cabinet door, be equipped with protruding piece on the insulating pad, cabinet body upper end is equipped with radiator fan, and the radiator fan both sides are equipped with the support column, the support column upper end is equipped with waterproof baffle, waterproof baffle surface is equipped with solar cell panel, be equipped with the battery in the waterproof baffle, cabinet body both sides face all is equipped with the thermovent, be equipped with the dust screen in the thermovent, the thermovent is equipped with waterproof piece outward, and the device heat dissipation waterproof performance is good, but the device has the installation inconvenience, the relatively poor drawback of general. Therefore, a multi-place applicable closed high-low voltage power distribution cabinet is provided.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a multi-place applicable closed high-low voltage power distribution cabinet, which overcomes the defects of the prior art, has reasonable design and compact structure and aims to solve the problems that when the existing high-low voltage power distribution cabinet is provided with a closed function, heat generated by the operation of an electric element arranged inside cannot be dissipated in time, so that the electric element works in a higher-temperature environment, on one hand, the electric element in the cabinet body is easy to age, and on the other hand, the high temperature in the cabinet body can cause the burning of the electric element.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
the closed high-low voltage power distribution cabinet comprises a power distribution cabinet body and a base arranged at the lower end of the power distribution cabinet body, wherein the lower end of the base is provided with pad feet which are distributed in a matrix manner, the front wall of the power distribution cabinet body is provided with a cabinet door, the cabinet door is provided with an anti-theft lock, the upper end of the power distribution cabinet body is provided with a top cabinet, the rear part of an inner cavity of the power distribution cabinet body is vertically provided with a back plate, the back plate divides the inner cavity of the power distribution cabinet body into an element cavity positioned at the front side and a cooling cavity positioned at the rear side, the lower part of the element cavity is provided with a horizontal separation plate for separating a liquid cavity at the lower part of the inner cavity of the element cavity, the horizontal separation plate is provided with an electrostatic eliminator, a plurality;
the heat exchange carrier comprises a metal frame body horizontally arranged on the inner wall of the power distribution cabinet body, the lower end of the metal frame body is attached with a heat conduction block, and a ceramic heat exchange rod extending backwards to the cooling cavity is arranged on the heat conduction block;
cooling system sets up two sets of inflection liquid cold tubes on component intracavity wall including the symmetry, and the output and the liquid chamber through connection of inflection liquid cold tube, install the shunt tubes on the input of inflection liquid cold tube, and the other end of two shunt tubes extends to the cooling chamber and is connected with same communicating pipe, install the winding pipe on communicating pipe, every pottery heat transfer stick has been encircleed from bottom to top in proper order to the winding pipe, reach the inner chamber of top cabinet and connect heat transfer mechanism's output, install the feed liquor pipe on heat transfer mechanism's the input, and the other end of feed liquor pipe passes the cooling chamber and extends to the inner chamber lower part in liquid chamber, install liquid pump I on the feed liquor pipe.
Preferably, the heat exchange mechanism comprises a heat exchange machine body arranged in the inner cavity of the top cabinet, heat exchange tubes are arranged on a medium input end and a medium output end of the heat exchange machine body, the other ends of the two heat exchange tubes extend to the outer cavity of the top cabinet and are communicated with the same heat exchange medium box, the heat exchange medium box is arranged on the rear wall of the top cabinet, and a liquid pump II is arranged on one heat exchange tube.
Preferably, a heat insulation plate is vertically arranged in the inner cavity of the top cabinet, and the heat insulation plate divides the inner cavity of the top cabinet into a heat exchange cavity for installing a heat exchange mechanism and a control cavity for installing a PLC controller.
Preferably, a temperature sensor and a wireless transmitter are mounted on the inner top wall of the element cavity, and the temperature sensor and the wireless transmitter are connected with the PLC through an electric control line.
Preferably, the edges of the two ends of the metal frame body are provided with pipe body grooves for the inflection liquid cooling pipes to pass through, and the metal frame body is provided with a plurality of hollow holes for reducing weight.
Preferably, a plurality of positioning pipe clamps are arranged on the inflection liquid-cooled pipe and are arranged on the inner wall of the element cavity.
Preferably, the number of the winding pipe circles on each ceramic heat exchange rod is more than or equal to 5, and the gap between adjacent circles is less than or equal to 3 mm.
Preferably, the rear wall of the power distribution cabinet body is provided with a heat dissipation grid for communicating the cooling cavity with the outside.
(III) advantageous effects
The embodiment of the invention provides a multi-site applicable closed high-low voltage power distribution cabinet, which has the following beneficial effects:
1. through the heat exchange carrier setting of a plurality of parallel arrangement, the electric elements's of being convenient for on the one hand is direct and neat installation, and on the other hand can cooperate cooling system to carry out even and direct cooling heat dissipation to the electric elements of installation.
2. Through the combined structure of the ceramic heat exchange rod and the winding pipe, the cooling medium a output at low temperature takes away the heat generated by the operation of the electric elements on the metal frame body through the winding pipe surrounding the rear section of the ceramic heat exchange rod, so that the temperature is quickly reduced; two inflection liquid cold tubes of cooperation further carry out whole cooling to the component chamber, guarantee component intracavity electric elements's operating temperature, liquid intracavity is finally got back to endless coolant a, and the effectual steady operation who guarantees high-low voltage distribution cabinet of endless cooling process.
3. Through the setting of heat transfer mechanism, the start-up of cooperation liquid pump II is inputed coolant b in the heat transfer organism to realize the heat exchange between coolant a and the coolant b in the heat transfer organism, guarantee the low temperature output that lasts of coolant a, thereby guarantee the long-term low temperature steady operation of electrical component in the high-low voltage distribution cabinet inner chamber.
4. Through the heat dissipation grid that sets up on the back wall of the switch board body, the effectual external air of assurance and the contact of cooling chamber inner cooling tube way and pottery heat exchange stick to supplementary effect that realizes rapid cooling protects high-low voltage switch board interior electrical component's steady operation.
Drawings
The above features, technical features, advantages and implementation of the multi-field closed high-low voltage distribution cabinet will be further described in the following detailed description of the preferred embodiments with reference to the accompanying drawings.
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic view of the internal structure of the cooling chamber of the present invention;
FIG. 4 is a schematic view of the structure A-A of FIG. 1 according to the present invention;
FIG. 5 is a schematic view of the structure B-B of FIG. 1 according to the present invention;
FIG. 6 is a schematic structural view of the heat exchange carrier of the present invention.
In the figure: the power distribution cabinet comprises a power distribution cabinet body 1, an element cavity 101, a liquid cavity 102, a cooling cavity 103, a back plate 2, a horizontal partition plate 3, a base 4, a pad 41, a cabinet door 5, a heat exchange carrier 6, a metal frame body 601, a heat conduction block 602, a ceramic heat exchange rod 603, a pipe body groove 604, a hollow hole 605, a cooling and heat dissipation system 7, a back-folding liquid cooling pipe 701, a shunt pipe 702, a communicating pipe 703, a winding pipe 704, a heat exchange machine body 705, a liquid inlet pipe 706, a liquid pump I707, a heat exchange pipe 708, a heat exchange medium box 709, a liquid pump II 710, a positioning pipe clamp 711, a heat dissipation grid 8, a top cabinet 9, an electrostatic eliminator 10, a heat insulation board 11, a PLC (programmable logic controller).
Detailed Description
The invention will be further illustrated with reference to the following figures 1-6 and examples:
example 1
A closed high-low voltage power distribution cabinet applicable to multiple places comprises a power distribution cabinet body 1 and a base 4 arranged at the lower end of the power distribution cabinet body 1, wherein the lower end of the base 4 is provided with pad feet 41 distributed in a matrix manner, the front wall of the power distribution cabinet body 1 is provided with a cabinet door 15, and the cabinet door 15 is provided with an anti-theft lock, it can be understood that after the cabinet door 15 is closed, the inner cavity of the power distribution cabinet body 1 is a closed space which is effectively waterproof and dustproof, the upper end of the power distribution cabinet body 1 is provided with a top cabinet 9, the rear part of the inner cavity of the power distribution cabinet body 1 is vertically provided with a back plate 2, the back plate 2 divides the inner cavity of the power distribution cabinet body 1 into an element cavity 101 at the front side and a cooling cavity 103 at the rear side, the lower part of the element cavity 101 is provided with a horizontal separation plate 3 for separating the liquid cavity 102 at the lower part, the static electricity in the inner cavity of the electric cabinet main body 1 is effectively eliminated, the potential safety hazard is prevented, the plurality of heat exchange carrier frames 6 which are arranged in parallel are sequentially arranged in the inner cavity of the element cavity 101 from bottom to top, on one hand, the direct and tidy installation of the electric elements is facilitated, and the cooling and heat dissipation system 7 is also arranged in the element cavity 101, on the other hand, the cooling and heat dissipation system 7 can be matched to uniformly and directly cool and dissipate the installed electric elements;
in this embodiment, as shown in fig. 2 and 6, the heat exchange carrier 6 includes a metal frame body 601 horizontally installed on the inner wall of the power distribution cabinet body 1, the metal frame body is made of metal material and has good heat conductivity, a heat conduction block 602 is attached to the lower end of the metal frame body 601, and a ceramic heat exchange rod 603 extending backwards to the cooling cavity 103 is installed on the heat conduction block 602, so that heat is effectively transferred to the ceramic heat exchange rod 603, and cooling and heat dissipation are realized through the rear section of the ceramic heat exchange rod 603 in the cooling cavity 103;
in this embodiment, as shown in fig. 2-5, the cooling and heat dissipating system 7 includes two sets of folded liquid-cooled tubes 701 symmetrically disposed on the inner wall of the component cavity 101, in this embodiment, the folded liquid-cooled tubes 701 are made of copper tubes, the output ends of the folded liquid-cooled tubes 701 are connected to the liquid cavity 102, the input ends of the folded liquid-cooled tubes 701 are installed with shunt tubes 702, the other ends of the two shunt tubes 702 extend to the cooling cavity 103 and are connected to a same communicating tube 703, the communicating tube 703 is installed with a winding tube 704, the winding tube 704 sequentially surrounds each ceramic heat exchanging rod 603 from bottom to top, reaches the inner cavity of the top cabinet 9 and is connected to the output end of the heat exchanging mechanism, the input end of the heat exchanging mechanism is installed with a liquid inlet tube 706, the other end of the liquid inlet tube 706 passes through the cooling cavity 103 and extends to the lower portion of the inner cavity of the liquid cavity 102, the liquid inlet tube 706, pumping the cooling medium a in the liquid cavity 102 into the heat exchange mechanism for early cooling, so as to ensure the low-temperature output of the cooling medium a, and taking away the heat generated by the operation of the electric elements on the metal frame body 601 by the cooling medium a output at low temperature through a winding pipe 704 which surrounds the rear section of the ceramic heat exchange rod 603 so as to rapidly cool;
meanwhile, a cooling medium a enters the two folded liquid cooling pipes 701 through the shunt pipe 702, the element cavity 101 is further cooled integrally, the operation temperature of the electric elements in the element cavity 101 is guaranteed, the circulating cooling medium a finally returns to the liquid cavity 102, and the stable operation of the high-low voltage power distribution cabinet is effectively guaranteed in the circulating cooling process.
In this embodiment, as shown in fig. 2-5, the heat exchange mechanism includes a heat exchange body 705 disposed in the inner cavity of the top cabinet 9, in this embodiment, the heat exchange body 705 may be a plate-type heat exchange body or a fixed-tube plate-type heat exchange body, heat exchange tubes 708 are mounted on the medium input end and the medium output end of the heat exchange body 705, the other ends of the two heat exchange tubes 708 extend to the outer cavity of the top cabinet 9 and are connected to a same heat exchange medium tank 709 in a penetrating manner, a cooling medium b is contained in the heat exchange medium tank 709, the heat exchange medium tank 709 is mounted on the rear wall of the top cabinet 9, one heat exchange tube 708 is provided with a liquid pump II 710, the liquid pump II 710 is started, a cooling medium b is input into the heat exchange body 705, therefore, heat exchange between the cooling medium a and the cooling medium b in the heat exchanger body 705 is realized, continuous low-temperature output of the cooling medium a is ensured, and stable operation of the high-low voltage power distribution cabinet is ensured.
In this embodiment, as shown in fig. 2 and 3, a heat insulation plate 11 is vertically installed in the inner cavity of the top cabinet 9, and the heat insulation plate 11 divides the inner cavity of the top cabinet 9 into a heat exchange cavity for installing a heat exchange mechanism and a control cavity for installing a PLC controller 12.
In this embodiment, as shown in fig. 2, a temperature sensor 13 and a wireless transmitter 14 are installed on an inner top wall of the element cavity 101, the temperature sensor 13 and the wireless transmitter 14 are connected to the PLC controller 12 through an electrical control line, the temperature sensor 13 is used for detecting the temperature of the inner cavity of the element cavity 101 in real time, and the wireless transmitter 14 is used for alarming the power control center in a high temperature condition; in this embodiment, the model of the PLC controller 12 is siemens S7-300, and the stable operation of the high-low voltage power distribution cabinet can be effectively ensured in cooperation with the arrangement of the temperature sensor 13 and the wireless transmitter 14.
In this embodiment, as shown in fig. 1, in order to facilitate installation and reduce the overall weight and improve the installation amount of the electrical component, tube grooves 604 for passing the foldable liquid cooling tube 701 are formed at the edges of the two ends of the metal frame 601, and a plurality of hollow holes 605 for reducing the weight are formed in the metal frame 601.
In this embodiment, as shown in fig. 4 and 5, a plurality of positioning pipe clamps 711 are disposed on the inflection liquid-cooled pipe 701, and the positioning pipe clamps 711 are mounted on the inner wall of the element cavity 101, so that the fixing effect of the inflection liquid-cooled pipe 701 is effectively ensured, and the temperature is continuously reduced and the heat is dissipated.
In this embodiment, as shown in fig. 4, the number of the winding turns of the winding pipe 704 on each ceramic heat exchanging rod 603 is more than or equal to 5, and the gap between adjacent winding turns is less than or equal to 3 mm, so that heat conduction and removal on the ceramic heat exchanging rods 603 are effectively ensured, and thus the electrical elements mounted on the metal frame body 601 are directly cooled, and the heat dissipation and cooling effects are ensured.
Example 2
The difference between this embodiment and embodiment 1 is that, as shown in fig. 3-5, a heat dissipation grid 8 for communicating the cooling cavity 103 with the outside is provided on the rear wall of the power distribution cabinet body 1, so as to ensure the contact between the outside air and the cooling pipeline in the cooling cavity 103, thereby assisting in achieving the effect of rapid cooling and protecting the stable operation of the electrical components in the high-low voltage power distribution cabinet.
Other undescribed structures refer to example 1.
The embodiments of the present invention are disclosed as the preferred embodiments, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention and make various extensions and changes without departing from the spirit of the present invention.
Claims (8)
1. The closed high-low voltage power distribution cabinet applicable to multiple places comprises a power distribution cabinet body and a base arranged at the lower end of the power distribution cabinet body, wherein the lower end of the base is provided with pad feet which are distributed in a matrix manner;
the heat exchange carrier comprises a metal frame body horizontally arranged on the inner wall of the power distribution cabinet body, the lower end of the metal frame body is attached with a heat conduction block, and a ceramic heat exchange rod extending backwards to the cooling cavity is arranged on the heat conduction block;
cooling system sets up two sets of inflection liquid cold tubes on component intracavity wall including the symmetry, and the output and the liquid chamber through connection of inflection liquid cold tube, install the shunt tubes on the input of inflection liquid cold tube, and the other end of two shunt tubes extends to the cooling chamber and is connected with same communicating pipe, install the winding pipe on communicating pipe, every pottery heat transfer stick has been encircleed from bottom to top in proper order to the winding pipe, reach the inner chamber of top cabinet and connect heat transfer mechanism's output, install the feed liquor pipe on heat transfer mechanism's the input, and the other end of feed liquor pipe passes the cooling chamber and extends to the inner chamber lower part in liquid chamber, install liquid pump I on the feed liquor pipe.
2. The multi-site applicable closed high-low voltage power distribution cabinet according to claim 1, characterized in that: the heat exchange mechanism comprises a heat exchange machine body arranged in an inner cavity of the top cabinet, heat exchange tubes are arranged on a medium input end and a medium output end of the heat exchange machine body, the other ends of the two heat exchange tubes extend to an outer cavity of the top cabinet and are in through connection with the same heat exchange medium box, the heat exchange medium box is arranged on the rear wall of the top cabinet, and a liquid pump II is arranged on one heat exchange tube.
3. The multi-site applicable closed high-low voltage power distribution cabinet according to claim 1, characterized in that: and a heat insulation plate is vertically arranged in the inner cavity of the top cabinet, and the heat insulation plate divides the inner cavity of the top cabinet into a heat exchange cavity for mounting a heat exchange mechanism and a control cavity for mounting a PLC (programmable logic controller).
4. The multi-site applicable closed high-low voltage power distribution cabinet according to claim 3, characterized in that: and a temperature sensor and a wireless transmitter are installed on the inner top wall of the element cavity and are connected with the PLC through an electric control line.
5. The multi-site applicable closed high-low voltage power distribution cabinet according to claim 1, characterized in that: the edge of the two ends of the metal frame body is provided with a pipe body groove for the inflection liquid cooling pipe to pass through, and the metal frame body is provided with a plurality of hollow holes for reducing the weight.
6. The multi-site applicable closed high-low voltage power distribution cabinet according to claim 1, characterized in that: the inflection liquid cooling pipe is provided with a plurality of positioning pipe clamps, and the positioning pipe clamps are arranged on the inner wall of the element cavity.
7. The multi-site applicable closed high-low voltage power distribution cabinet according to claim 1, characterized in that: the number of the winding pipe circles on each ceramic heat exchange rod is more than or equal to 5, and the gap between every two adjacent circles is less than or equal to 3 mm.
8. The multi-site applicable closed high-low voltage power distribution cabinet according to claim 1, characterized in that: and a heat dissipation grid used for communicating the cooling cavity with the outside is arranged on the rear wall of the power distribution cabinet body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010359459.6A CN111371027A (en) | 2020-04-29 | 2020-04-29 | Airtight high-low voltage power distribution cabinet that many places were suitable for |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010359459.6A CN111371027A (en) | 2020-04-29 | 2020-04-29 | Airtight high-low voltage power distribution cabinet that many places were suitable for |
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| CN111371027A true CN111371027A (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010359459.6A Pending CN111371027A (en) | 2020-04-29 | 2020-04-29 | Airtight high-low voltage power distribution cabinet that many places were suitable for |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113437694A (en) * | 2021-06-16 | 2021-09-24 | 淮南万泰电气有限公司 | Closed looped netowrk cabinet heat radiation structure of aerifing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3439741A1 (en) * | 1984-10-31 | 1986-04-30 | Küppersbusch AG, 4650 Gelsenkirchen | Cooking apparatus having a switch box |
| CN207398654U (en) * | 2017-11-20 | 2018-05-22 | 维益宏基集团有限公司 | A kind of new prepackage type power transformation box |
| CN108110631A (en) * | 2017-11-29 | 2018-06-01 | 江西省互电气有限公司 | A kind of electrical engineering rapid cooling electrical cabinet |
| CN111082341A (en) * | 2019-12-26 | 2020-04-28 | 南京陶特思软件科技有限公司 | Power switch box |
-
2020
- 2020-04-29 CN CN202010359459.6A patent/CN111371027A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3439741A1 (en) * | 1984-10-31 | 1986-04-30 | Küppersbusch AG, 4650 Gelsenkirchen | Cooking apparatus having a switch box |
| CN207398654U (en) * | 2017-11-20 | 2018-05-22 | 维益宏基集团有限公司 | A kind of new prepackage type power transformation box |
| CN108110631A (en) * | 2017-11-29 | 2018-06-01 | 江西省互电气有限公司 | A kind of electrical engineering rapid cooling electrical cabinet |
| CN111082341A (en) * | 2019-12-26 | 2020-04-28 | 南京陶特思软件科技有限公司 | Power switch box |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113437694A (en) * | 2021-06-16 | 2021-09-24 | 淮南万泰电气有限公司 | Closed looped netowrk cabinet heat radiation structure of aerifing |
| CN113437694B (en) * | 2021-06-16 | 2023-02-17 | 淮南万泰电气有限公司 | Closed looped netowrk cabinet heat radiation structure of aerifing |
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Application publication date: 20200703 |