CN110290675B - Automatically controlled cabinet cooling system and automatically controlled cabinet - Google Patents
Automatically controlled cabinet cooling system and automatically controlled cabinet Download PDFInfo
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- CN110290675B CN110290675B CN201910486837.4A CN201910486837A CN110290675B CN 110290675 B CN110290675 B CN 110290675B CN 201910486837 A CN201910486837 A CN 201910486837A CN 110290675 B CN110290675 B CN 110290675B
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- heat dissipation
- electric control
- control cabinet
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
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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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
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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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
- H05K5/0221—Locks; Latches
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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
- H05K7/14—Mounting supporting structure in casing or on frame or rack
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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
- H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
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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
- H05K7/20172—Fan mounting or fan specifications
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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
- H05K7/20209—Thermal management, e.g. fan control
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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
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
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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
- H05K7/20281—Thermal management, e.g. liquid flow control
Abstract
The invention relates to the technical field of automation equipment, and provides an electric control cabinet heat dissipation system and an electric control cabinet, aiming at solving the problems that the existing electric control cabinet has poor heat dissipation and can seriously damage a master control module, an instrument and other electronic devices in the cabinet, and on the other hand, components can be burnt due to high temperature; the air-cooled heat dissipation system comprises two heat dissipation ports formed in the upper portion of the symmetrical side wall of the electric control cabinet main body, a heat dissipation fan and a heat dissipation port sealing plate are arranged on each heat dissipation port, one side, opposite to each heat dissipation port, of each heat dissipation port is provided with the heat dissipation port sealing plate, the heat dissipation port sealing plates are slidably mounted on the inner wall of the electric control cabinet main body, a traction rope is mounted at the upper end of each heat dissipation port sealing plate, and the other ends of the two traction ropes are wound around a turning. The invention is particularly suitable for the efficient heat dissipation of the electric control cabinet and has higher social use value and application prospect.
Description
Technical Field
The invention relates to the technical field of automation equipment, in particular to an electric control cabinet heat dissipation system and an electric control cabinet.
Background
The electric control cabinet is a control cabinet (box) which assembles switch equipment, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the electric wiring requirement, and the arrangement of the electric control cabinet meets the requirement of normal operation of an electric power system, is convenient to overhaul and does not endanger the safety of people and surrounding equipment.
Current automatically controlled cabinet, the design is more single, and structural design makes the thermal diffusivity not good, and components and parts work under the environment of higher temperature, and components and parts in the automatically controlled cabinet of arousing easily on the one hand are ageing, can seriously damage total accuse module, instrument and other electron device in the cabinet, and on the other hand, high temperature can produce the potential safety hazard, leads to components and parts to burn out.
The patent with publication number CN205546355U discloses a heat dissipation device suitable for an electric control cabinet, which comprises a cold water circulation heat exchanger, a heat dissipation fan, a cold water coil and a condensed water disc, wherein the heat dissipation fan is arranged at one side of the cold water circulation heat exchanger, the condensed water disc is arranged at the bottom of the cold water circulation heat exchanger, and the cold water coil is arranged above the condensed water disc; the partition plate is arranged on the cold water circulating heat exchanger and divides the electric control cabinet into two mutually communicated spaces; wherein, start cold water circulation heat exchanger, the air that can make two spaces of automatically controlled cabinet circulates cooling and dehumidification, and the device guarantees automatically controlled cabinet safe operation under the high temperature and high humidity environment, but the radiating effect of the device is not ideal, and the commonality can be relatively poor.
Therefore, an electric control cabinet heat dissipation system and an electric control cabinet are provided.
Disclosure of Invention
(1) Technical problem to be solved
The invention aims to overcome the defects of the prior art, adapt to practical needs, and provide an electric control cabinet heat dissipation system and an electric control cabinet, so as to solve the problems that components in the electric control cabinet are easy to age and can seriously damage a master control module, an instrument and other electronic devices in the cabinet, and the components are burnt due to potential safety hazards caused by high temperature because the existing electric control cabinet has poor heat dissipation.
(2) Technical scheme
In order to realize the purpose of the invention, the technical scheme adopted by the invention is as follows:
an electric control cabinet heat dissipation system comprises an air-cooled heat dissipation system and a temperature control trigger assembly, wherein the air-cooled heat dissipation system and the temperature control trigger assembly are arranged in an inner cavity of an electric control cabinet main body;
the air-cooled heat dissipation system comprises two heat dissipation ports formed in the upper portion of the symmetrical side wall of an electric cabinet main body, a heat dissipation fan is mounted on each heat dissipation port, a heat dissipation port sealing plate is arranged on one side, opposite to each other, of each heat dissipation port, the heat dissipation port sealing plates are slidably mounted on the inner wall of the electric cabinet main body, a traction rope is mounted at the upper end of each heat dissipation port sealing plate, the other ends of the two traction ropes wind around a turning wheel and are wound on the same winch, the turning wheel is rotatably mounted on the inner top wall of the electric cabinet main body, the winch is rotatably mounted on the upper portion of an inner cavity of the electric cabinet main body through a support, a circular gear is coaxially mounted at one end of the winch, the circular gear is meshed with teeth on the lower side of a straight rack, one end of the;
the temperature control trigger assembly comprises a control box arranged on the inner wall of the electric control cabinet main body, a movable contact block is slidably mounted in an inner cavity of the control box, an air bag is arranged on the lower side of the movable contact block, a static contact block is arranged above the movable contact block and fixedly mounted on the inner top wall of the control box, a plurality of pressure relief holes are formed in the side wall of the movable contact block, a temperature conduction port is formed in the lower portion of the side wall of the control box, and the movable contact block, the static contact block and the air cylinder are electrically connected with a cooling fan.
Preferably, automatically controlled cabinet cooling system is still including setting up the liquid cooling pipe network on the relative inside wall of automatically controlled cabinet main part, all install the transfer line on the input and the output of liquid cooling pipe network, four the other end of transfer line all reaches the exocoel of automatically controlled cabinet main part and installs respectively on the input and the output of the cold machine of oil, the cold machine fixed mounting of oil is on the back wall of automatically controlled cabinet main part, move touch multitouch, static touch multitouch and the cold electromechanical electrical connection of oil.
Preferably, the liquid cooling pipe network is an S-shaped return bending pipe network, and the liquid cooling pipe network is a copper pipe.
Preferably, the upper end of the spur rack is provided with a sliding block, and the sliding block is slidably arranged in a sliding groove formed in the inner top wall of the electric control cabinet main body.
The invention also provides an electric control cabinet on the basis of the heat dissipation system, which comprises an electric control cabinet main body and the heat dissipation system, wherein the electric control cabinet adopts the heat dissipation system;
a plurality of supporting legs are installed to automatically controlled cabinet main part lower extreme, be equipped with the cabinet door on the antetheca of automatically controlled cabinet main part, and be equipped with the lock on the cabinet door.
Preferably, the inner cavity of the electric control cabinet main body is provided with a plurality of element mounting frames which are transversely arranged in parallel, and the inner cavity of the electric control cabinet main body is provided with a static eliminator.
(3) Has the advantages that:
1. through the integrated configuration of air-cooled cooling system, liquid cooling pipe network, transfer line and oil cooler, two cooling blower synchronous start discharge the hot-air in the automatically controlled cabinet main part inner chamber to inject external cold air into, utilize air cycle, realize quick heat dissipation, simultaneously, the coolant oil flows in the liquid cooling pipe network inner loop, takes away the heat in the automatically controlled cabinet main part inner chamber, cooperation air-cooled cooling system, dual cooling, the radiating effect is better.
2. Trigger the temperature that the subassembly can effectual detection automatically controlled cabinet main part inner chamber through the control by temperature change, after reaching certain temperature, start cooling system, the radiating effect is better, simultaneously, effectual realization is to cooling system's automatic control function, realization energy saving.
Drawings
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is a cross-sectional view of the structure of the present invention;
FIG. 3 is an enlarged view of the structure A in FIG. 2;
FIG. 4 is a schematic view of a combination structure of a liquid cooling pipe network and a liquid transport pipe according to the present invention;
fig. 5 is a schematic structural diagram of a temperature control trigger assembly according to the present invention.
In the figure: the electric control cabinet comprises an electric control cabinet body 1, a cabinet door 2, a heat dissipation port 3, an oil cooler 4, an element mounting frame 5, an air-cooled heat dissipation system 6, a heat dissipation port sealing plate 61, a traction rope 62, a turning wheel 63, a winch 64, a circular gear 65, a spur rack 66, an air cylinder 67, a sliding block 68, a heat dissipation fan 69, a liquid cooling pipe network 7, a liquid conveying pipe 8, a temperature control trigger assembly 9, a control box 91, a temperature conduction port 92, an air bag 93, a movable contact block 94, a pressure relief hole 95, a static contact block 96 and a static eliminator 10.
Detailed Description
The invention will be further illustrated with reference to the following figures 1 to 5 and examples:
an electric control cabinet heat dissipation system comprises an air-cooled heat dissipation system 6 and a temperature control trigger assembly 9, wherein the air-cooled heat dissipation system 6 and the temperature control trigger assembly are arranged in an inner cavity of an electric control cabinet main body 1;
in this embodiment, as shown in fig. 2 and 3, the air-cooled heat dissipation system 6 includes two heat dissipation ports 3 disposed on the upper portion of the symmetrical side walls of the electric cabinet main body 1, a heat dissipation fan 69 is installed on the heat dissipation ports 3, heat dissipation port sealing plates 61 are disposed on the two opposite sides of the heat dissipation ports 3, the heat dissipation port sealing plates 61 are slidably installed on the inner wall of the electric cabinet main body 1, a traction rope 62 is installed on the upper end of the heat dissipation port sealing plate 61, the other ends of the two traction ropes 62 bypass a direction-changing wheel 63 and are wound on the same capstan 64, the direction-changing wheel 63 is rotatably installed on the inner top wall of the electric cabinet main body 1, the capstan 64 is rotatably installed on the upper portion of the inner cavity of the electric cabinet main body 1 through a bracket, a circular gear 65 is coaxially installed at one end of the capstan 64, the teeth of a spur rack 66 are engaged with the circular, cylinder 67 fixed mounting is on automatically controlled cabinet main part 1's interior roof, cylinder 67 starts, drive the motion of spur rack 66, the tooth meshing circular gear 65 of spur rack 66 downside, it rotates to drive circular gear 65, thereby it tightens up two haulage ropes 62 to drive coaxial arrangement's capstan winch 64 rotation, drive two thermovent closing plate 61 upward movement and leave thermovent 3, two radiator fan 69 synchronous start simultaneously, the hot-air in the 1 inner chamber of automatically controlled cabinet main part of discharge, and pour into external cold air into, utilize air cycle, realize quick heat dissipation, and the radiating efficiency is greatly improved.
In this embodiment, as shown in fig. 2 and 4, automatically controlled cabinet cooling system is still including setting up the liquid cooling pipe network 7 on the relative inside wall of automatically controlled cabinet main part 1, all install transfer line 8, four on the input of liquid cooling pipe network 7 and the output the other end of transfer line 8 all reachs the exocoel of automatically controlled cabinet main part 1 and installs respectively on the input of oil cooler 4 and output, oil cooler 4 fixed mounting is on the back wall of automatically controlled cabinet main part 1, and oil cooler 4 starts, has realized through four transfer lines 8 that the coolant oil circulates in liquid cooling pipe network 7 and flows, takes away the heat in the inner chamber of automatically controlled cabinet main part 1, and cooperation air cooling system 6, the radiating effect is better.
In this embodiment, as shown in fig. 2 and 5, the temperature control trigger assembly 9 includes a control box 91 disposed on an inner wall of the electric control cabinet main body 1, a movable contact block 94 is slidably mounted in an inner cavity of the control box 91, an air bag 93 is disposed under the movable contact block 94, a stationary contact block 96 is disposed above the movable contact block 94, the stationary contact block 96 is fixedly mounted on an inner top wall of the control box 91, a plurality of pressure relief holes 95 are disposed on a side wall of the movable contact block 94, a temperature conduction port 92 is disposed at a lower portion of a side wall of the control box 91, the movable contact block 94 and the stationary contact block 96 are electrically connected to the air cylinder 67, the heat dissipation fan 69 and the oil cooler 4, when an electric element in the inner cavity of the electric control cabinet main body 1 generates heat during operation, the heat is conducted to the air bag 93 by heat in the inner cavity of the electric control cabinet main body 1, the air bag 93 expands by heat to drive the movable contact block 94 to move upward, driving the two heat-dissipating port sealing plates 61 to move upwards away from the heat-dissipating ports 3; the cooling fan 69 is started to discharge hot air in the inner cavity of the electric cabinet main body 1, and inject outside cold air, so that the air circulation is utilized to realize quick cooling, and the cooling efficiency is greatly improved; the oil cooler 4 starts, and the coolant oil flows at liquid cooling pipe network 7 inner loop, takes away the heat in the electric cabinet main part 1 inner chamber, and cooperation forced air cooling system 6, the radiating effect is better.
In this embodiment, as shown in fig. 4, the liquid cooling pipe network 7 is an S-shaped return bending pipe network, and the liquid cooling pipe network 7 is a copper pipe, so that it is effectively ensured that the cooling oil fully absorbs heat in the inner cavity of the electric control cabinet main body 1, and the heat dissipation efficiency is improved.
In this embodiment, as shown in fig. 3, a sliding block 68 is installed at the upper end of the spur rack 66, and the sliding block 68 is slidably installed in a sliding slot formed on the inner top wall of the electric cabinet main body 1, so as to effectively support the spur rack 66 and ensure that the teeth at the lower end of the spur rack 66 are fully meshed with the circular gear 65.
In this embodiment, as shown in fig. 1 to 5, the present invention further provides an electric control cabinet based on the above heat dissipation system, including an electric control cabinet main body 1 and a heat dissipation system, where the electric control cabinet adopts the above heat dissipation system, and therefore the electric control cabinet also has the beneficial effects of the above heat dissipation system;
a plurality of supporting legss are installed to automatically controlled cabinet main part 1 lower extreme, and the supporting legs guarantees the stable support to automatically controlled cabinet main part 1, be equipped with cabinet door 2 on the antetheca of automatically controlled cabinet main part 1, and be equipped with the lock on the cabinet door 2, be convenient for open and close cabinet door 2, realize installation and maintenance.
In this embodiment, as shown in fig. 2, the inner cavity of the electric control cabinet main body 1 is provided with a plurality of component mounting brackets 5 arranged in parallel in a transverse direction, the component mounting brackets 5 are used for mounting electrical components, and the inner cavity of the electric control cabinet main body 1 is provided with a static eliminator 10, so that static in the inner cavity of the electric control cabinet main body 1 is effectively eliminated, and potential safety hazards are prevented.
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 (6)
1. An electric control cabinet heat dissipation system comprises an air-cooled heat dissipation system and a temperature control trigger assembly, wherein the air-cooled heat dissipation system and the temperature control trigger assembly are arranged in an inner cavity of an electric control cabinet main body;
the air-cooled heat dissipation system is characterized by comprising two heat dissipation ports arranged on the upper parts of symmetrical side walls of an electric cabinet main body, wherein heat dissipation fans are arranged on the heat dissipation ports, heat dissipation port sealing plates are arranged on the two opposite sides of the heat dissipation ports, the heat dissipation port sealing plates are slidably mounted on the inner wall of the electric cabinet main body, traction ropes are mounted at the upper ends of the heat dissipation port sealing plates, the other ends of the two traction ropes wind around a turning wheel and are wound on the same winch, the turning wheel is rotatably mounted on the inner top wall of the electric cabinet main body, the winch is rotatably mounted on the upper part of an inner cavity of the electric cabinet main body through a support, a circular gear is coaxially mounted at one end of the winch, the circular gear is meshed with teeth on the lower side of a straight rack, one end of the straight rack is fixedly mounted on the output;
the temperature control trigger assembly comprises a control box arranged on the inner wall of the electric control cabinet main body, a movable contact block is slidably mounted in an inner cavity of the control box, an air bag is arranged on the lower side of the movable contact block, a static contact block is arranged above the movable contact block and fixedly mounted on the inner top wall of the control box, a plurality of pressure relief holes are formed in the side wall of the movable contact block, a temperature conduction port is formed in the lower portion of the side wall of the control box, and the movable contact block, the static contact block and the air cylinder are electrically connected with a cooling fan.
2. The heat dissipation system of an electric control cabinet of claim 1, wherein: the electric control cabinet heat dissipation system further comprises a liquid cooling pipe network arranged on the inner side wall relative to the electric control cabinet main body, infusion pipes are arranged on the input end and the output end of the liquid cooling pipe network, the infusion pipes are four, the other ends of the infusion pipes reach the outer cavity of the electric control cabinet main body and are respectively arranged on the input end and the output end of the oil cooler, the oil cooler is fixedly arranged on the rear wall of the electric control cabinet main body, and the movable contact block, the static contact block and the oil cooler are electrically connected.
3. The electric control cabinet cooling system and the electric control cabinet as claimed in claim 2, wherein: the liquid cooling pipe network is an S-shaped return bending pipe network, and the liquid cooling pipe network is a copper pipe.
4. The electric control cabinet cooling system and the electric control cabinet as claimed in claim 1, wherein: the upper end of the spur rack is provided with a sliding block, and the sliding block is slidably arranged in a sliding groove formed in the inner top wall of the electric control cabinet main body.
5. The utility model provides an electric control cabinet, includes electric control cabinet main part and cooling system, its characterized in that: the heat dissipation system is the heat dissipation system of any one of claims 1-4;
a plurality of supporting legs are installed to automatically controlled cabinet main part lower extreme, are equipped with the cabinet door on the antetheca of automatically controlled cabinet main part, and are equipped with the lock on the cabinet door.
6. The electric control cabinet according to claim 5, wherein: the inner chamber of automatically controlled cabinet main part is equipped with a plurality of horizontal parallel arrangement's component mounting bracket, and the inner chamber of automatically controlled cabinet main part is equipped with static eliminator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910486837.4A CN110290675B (en) | 2019-06-05 | 2019-06-05 | Automatically controlled cabinet cooling system and automatically controlled cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910486837.4A CN110290675B (en) | 2019-06-05 | 2019-06-05 | Automatically controlled cabinet cooling system and automatically controlled cabinet |
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| Publication Number | Publication Date |
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| CN110290675A CN110290675A (en) | 2019-09-27 |
| CN110290675B true CN110290675B (en) | 2020-05-29 |
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| CN201910486837.4A Active CN110290675B (en) | 2019-06-05 | 2019-06-05 | Automatically controlled cabinet cooling system and automatically controlled cabinet |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112323079B (en) * | 2020-08-31 | 2022-12-06 | 安徽蓝德正华电子有限公司 | Surface rust removal device for assembly plate of lighting power distribution cabinet |
| CN112235975A (en) * | 2020-10-03 | 2021-01-15 | 胡梦 | 5G communication base station ventilation heat radiation structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007021746A1 (en) * | 2007-05-09 | 2008-11-20 | Siemens Ag | Cooling air supply arrangement for a rail vehicle |
| CN205231527U (en) * | 2015-12-21 | 2016-05-11 | 上海宝菱电气控制设备有限公司 | IP54 protection level regulator cubicle that singly opens door |
| CN206163952U (en) * | 2016-10-17 | 2017-05-10 | 张大铭 | Multi -functional transformer case can dispel heat safely |
| CN208272445U (en) * | 2018-04-26 | 2018-12-21 | 清远市鼎兴泰机械设备有限公司 | A kind of electrical cabinet installation height-regulating device |
| CN109198901A (en) * | 2018-09-20 | 2019-01-15 | 合肥梦龙电子科技有限公司 | A kind of Intelligent clothes cabinet with automatic humidity-discharging device |
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