CN111244802A - Alternating-current low-voltage power distribution cabinet convenient for intelligent management - Google Patents
Alternating-current low-voltage power distribution cabinet convenient for intelligent management Download PDFInfo
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- CN111244802A CN111244802A CN202010223704.0A CN202010223704A CN111244802A CN 111244802 A CN111244802 A CN 111244802A CN 202010223704 A CN202010223704 A CN 202010223704A CN 111244802 A CN111244802 A CN 111244802A
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- distribution cabinet
- power distribution
- water tank
- cabinet shell
- intelligent management
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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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/52—Mobile units, e.g. for work sites
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses an alternating current low-voltage power distribution cabinet convenient for intelligent management, which comprises a power distribution cabinet shell; the top end of the power distribution cabinet shell is provided with a control box; the power distribution cabinet shell is movably connected with a cabinet door through a hinge; an electronic lock is arranged at the joint of the power distribution cabinet shell and the cabinet door; the cabinet door is provided with a glass window and a control panel; the control panel is electrically connected with the electronic lock; a heat dissipation mechanism and an air exchange mechanism are arranged inside the power distribution cabinet shell; a cooling liquid inlet is formed in the outer side of the power distribution cabinet shell corresponding to the heat dissipation mechanism; a base is arranged at the bottom end of the power distribution cabinet shell; the bottom of base is equipped with anti-skidding damping pad. The intelligent management system is convenient to use, high in safety and convenient for intelligent management.
Description
Technical Field
The invention relates to the technical field of power distribution cabinets, in particular to an alternating-current low-voltage power distribution cabinet convenient for intelligent management.
Background
The alternating-current low-voltage power distribution cabinet has the characteristics of small volume, simple and convenient installation, special technical performance, fixed position, unique configuration function, no field limitation, more common application, stable and reliable operation, high space utilization rate, less occupied area and environmental protection effect. When the existing alternating-current low-voltage power distribution cabinet is used, the heat dissipation function has certain potential safety hazard, and meanwhile, the high temperature and the high humidity of the internal environment of a machine room where the alternating-current low-voltage power distribution cabinet is located are known, so that the improvement on the internal environment of the alternating-current low-voltage power distribution cabinet is not obvious if the alternating-current low-voltage power distribution cabinet directly exchanges with gas in the machine room when the alternating-current low-voltage power distribution cabinet is ventilated and cooled, and sometimes even the alternating-current low; the existing power distribution cabinet can not uniformly improve, record and manage the internal environment of the power distribution cabinet.
Therefore, an alternating current low voltage power distribution cabinet convenient for intelligent management is forced and provided.
Disclosure of Invention
The invention aims to provide an alternating-current low-voltage power distribution cabinet convenient for intelligent management so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
an alternating current low-voltage power distribution cabinet convenient for intelligent management comprises a power distribution cabinet shell; the top end of the power distribution cabinet shell is provided with a control box; the power distribution cabinet shell is movably connected with a cabinet door through a hinge; an electronic lock is arranged at the joint of the power distribution cabinet shell and the cabinet door; the cabinet door is provided with a glass window and a control panel; the control panel is electrically connected with the electronic lock; a heat dissipation mechanism and an air exchange mechanism are arranged inside the power distribution cabinet shell; a cooling liquid inlet is formed in the outer side of the power distribution cabinet shell corresponding to the heat dissipation mechanism; a base is arranged at the bottom end of the power distribution cabinet shell; the bottom of base is equipped with anti-skidding damping pad.
As a further scheme of the invention: and a temperature sensor and a humidity sensor are arranged in the power distribution cabinet shell.
As a further scheme of the invention: the heat dissipation mechanism comprises a first water tank, a second water tank and a third water tank; the first water tank is arranged at the top end of the interior of the power distribution cabinet shell; one side of the first water tank is communicated with the second water tank through a first pipeline; the second water tank is arranged at the bottom end of the interior of the shell of the power distribution cabinet; the first water tank is communicated with the third water tank through a second pipeline; the third water tank is communicated with the second water tank through a third pipeline; a pressure pump is arranged at the communication position of the third pipeline and the second water tank; and a semiconductor radiator is arranged on one side of the third water tank.
As a further scheme of the invention: the semiconductor radiator comprises a cold end and a hot end; the cold end extends into the inner side of the third water tank; the other side of the third water tank is provided with a heat conducting rod; the heat conducting rod is attached to the heat dissipation device.
As a further scheme of the invention: the air exchange mechanism comprises fan blades; the fan blade is arranged on the right side of the semiconductor radiator; the fan blades are connected with the reversing mechanism through a coupler; the reversing mechanism extends into the driving box and is connected with a driving motor; the outer side of the power distribution cabinet shell is provided with a ventilation hood corresponding to the driving box; and the air exchange cover is provided with an active carbon net.
As a further scheme of the invention: a carbon dioxide fire extinguishing device is arranged in the control box; the top end inside the power distribution cabinet shell is provided with a plurality of fire extinguishing nozzles corresponding to the carbon dioxide fire extinguishing device; the fire extinguishing nozzle is provided with an electromagnetic valve; and an infrared sensor is arranged inside the power distribution cabinet shell.
As a further scheme of the invention: the control box is internally provided with a storage battery, a PLC (programmable logic controller) control circuit board, an alarm, a carbon dioxide fire extinguishing device, a fire extinguishing nozzle and a data storage transmitter; the storage battery is electrically connected with the PLC control circuit board; PLC control circuit board electric connection control panel, siren, temperature sensor, humidity transducer, heat dissipation mechanism and mechanism of taking a breath, data storage sends and is equipped with data memory, data transmitter and big dipper locator on the ware.
As a further scheme of the invention: and an electrostatic dust collection plate is arranged inside the power distribution cabinet shell.
As a further scheme of the invention: and a solar generator is clamped at the top end of the control box.
As a further scheme of the invention: the bottom end in the base is provided with a moving mechanism; a groove is formed in the outer bottom end of the base corresponding to the moving mechanism; the moving mechanism comprises an installation box; a lifting mechanism is arranged in the installation box; the bottom end of the lifting mechanism is correspondingly provided with universal wheels.
Compared with the prior art, the invention has the beneficial effects that: detecting and monitoring the temperature and the humidity inside the shell of the power distribution cabinet in real time through a temperature sensor and a humidity sensor; through the arrangement of the first water tank, the second water tank, the third water tank, the heat conducting rod and the semiconductor radiator, heat on the heat conducting rod and the radiating device can be absorbed in time, and a low-temperature environment is created around the radiating component to prevent the radiating component from being heated suddenly to damage the device; through the arrangement of the air exchange cover, the fan blades, the reversing mechanism and the driving motor, the internal environment of the shell of the power distribution cabinet can be exchanged, the heat dissipation of the hot end of the semiconductor radiator is accelerated, an electronic device is ensured to be in a proper environment, and the service life of the device is prolonged; the temperature state in the shell of the power distribution cabinet is detected through the infrared sensor, and when a circuit short circuit occurs, the carbon dioxide fire extinguishing device and the fire extinguishing nozzle are automatically started to perform timely treatment, so that greater loss caused by fire is prevented; the alarm, the temperature sensor, the humidity sensor, the heat dissipation mechanism and the ventilation mechanism can be controlled through the control panel; the working state of the device can be displayed in real time through the data storage transmitter, when a short circuit problem occurs, the alarm gives an alarm to remind a worker to perform timely treatment, the ventilation mechanism is remotely controlled and accelerated to operate through the data storage transmitter, and the carbon dioxide fire extinguishing device is controlled to extinguish fire; the dust in the device can be absorbed through the electrostatic dust absorption plate; through the arrangement of the solar generator, energy can be stored for the device outdoors, and the device is convenient to use; the universal wheel can be retracted into the mounting box through the lifting mechanism; through the arrangement of the universal wheels and the lifting mechanism, the device is convenient to move on the ground and is more convenient to use. In conclusion, the intelligent management system is convenient to use, high in safety and convenient to carry out intelligent management.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of a power distribution cabinet housing according to the present invention.
In the figure: 1-a solar generator, 2-a control box, 3-a power distribution cabinet shell, 4-a glass window, 5-a control panel, 6-a cabinet door, 7-an electronic lock, 8-a cooling liquid inlet, 9-an air exchange cover, 10-a base, 11-a storage battery, 12-a PLC control circuit board, 13-an alarm, 14-a data storage transmitter, 15-a carbon dioxide fire extinguishing device, 16-a fire extinguishing nozzle, 17-a humidity sensor, 18-an infrared sensor, 19-a temperature sensor, 20-an electrostatic dust collection board, 21-a heat dissipation mechanism, 22-a fan blade, 23-a reversing mechanism, 24-a driving motor and 25-a moving mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments 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.
Example 1
Referring to fig. 1-2, in an embodiment of the present invention, an ac low voltage power distribution cabinet convenient for intelligent management includes a power distribution cabinet housing 3; the top end of the power distribution cabinet shell 3 is provided with a control box 2; the power distribution cabinet shell 3 is movably connected with a cabinet door 6 through a hinge; an electronic lock 7 is arranged at the joint of the power distribution cabinet shell 3 and the cabinet door 6; the cabinet door 6 is provided with a glass window 4 and a control panel 5; the control panel 5 is electrically connected with the electronic lock 7; a heat dissipation mechanism 21 and an air exchange mechanism are arranged inside the power distribution cabinet shell 3; a cooling liquid inlet 8 is formed in the outer side of the power distribution cabinet shell 3 corresponding to the heat dissipation mechanism 21; a base 10 is installed at the bottom end of the power distribution cabinet shell 3; the bottom end of the base 10 is provided with an antiskid damping pad.
Further, a temperature sensor 19 and a humidity sensor 17 are arranged inside the power distribution cabinet shell 3; the temperature and the humidity inside the power distribution cabinet shell 3 are detected and monitored in real time through the temperature sensor 19 and the humidity sensor 17.
Further, the heat dissipation mechanism 21 includes a first water tank, a second water tank, and a third water tank; the first water tank is arranged at the top end of the interior of the power distribution cabinet shell 3; one side of the first water tank is communicated with the second water tank through a first pipeline; the second water tank is arranged at the bottom end inside the power distribution cabinet shell 3; the first water tank is communicated with the third water tank through a second pipeline; the third water tank is communicated with the second water tank through a third pipeline; a pressure pump is arranged at the communication position of the third pipeline and the second water tank; and a semiconductor radiator is arranged on one side of the third water tank.
The semiconductor radiator comprises a cold end and a hot end; the lower the hot end temperature, the lower the cold end temperature; the cold end extends into the inner side of the third water tank; the other side of the third water tank is provided with a heat conducting rod; the heat conducting rod is attached to the heat dissipation device; through the setting of a water tank, No. two water tanks, No. three water tanks, heat conduction stick and semiconductor radiator, can in time absorb the heat on heat conduction stick and the heat dissipation device to build a low temperature environment around the heat dissipation part, prevent that heat dissipation part temperature from violently increasing, cause the device to damage.
Further, the ventilation mechanism comprises fan blades 22; the fan blade 22 is arranged on the right side of the semiconductor radiator; the fan blades 22 are connected with a reversing mechanism 23 through a coupler; the reversing mechanism 23 extends into the driving box and is connected with a driving motor 24; the outer side of the power distribution cabinet shell 3 is provided with a ventilation hood 9 corresponding to the driving box; an active carbon net is arranged on the air exchange cover 9; through the setting of taking a breath cover 9, flabellum 22, reversing mechanism 23 and driving motor 24, can take a breath to the internal environment of switch board casing 3 to accelerate the heat dissipation of semiconductor radiator hot junction, guarantee that electronic device is in a suitable environment, extension device life-span.
Further, a carbon dioxide fire extinguishing device 15 is arranged inside the control box 2; the top end inside the power distribution cabinet shell 3 is provided with a plurality of fire extinguishing nozzles 16 corresponding to the carbon dioxide fire extinguishing device 15; the fire extinguishing nozzle 16 is provided with an electromagnetic valve; an infrared sensor 18 is arranged inside the power distribution cabinet shell 3; detect the inside temperature status of switch board casing 3 through infrared sensor 18, when the short circuit of emergence circuit, carbon dioxide extinguishing device 15 and the shower nozzle 16 automatic start of putting out a fire carry out timely processing, prevent to cause the conflagration and lead to bigger loss.
Further, a storage battery 11, a PLC (programmable logic controller) circuit board 12, an alarm 13, a carbon dioxide fire extinguishing device 15, a fire extinguishing nozzle 16 and a data storage transmitter 14 are arranged in the control box 2; the storage battery 11 is electrically connected with the PLC control circuit board 12; the PLC control circuit board 12 is electrically connected with the control panel 5, the alarm 13, the temperature sensor 19, the humidity sensor 17, the heat dissipation mechanism 21 and the ventilation mechanism, and the data storage transmitter 14 is provided with a data memory, a data transmitter and a Beidou positioner; the alarm 13, the temperature sensor 19, the humidity sensor 17, the heat dissipation mechanism 21 and the ventilation mechanism can be controlled through the control panel 5; the working state of the device can be displayed in real time through the data storage transmitter 14, when a short circuit problem occurs, the alarm 13 gives an alarm to remind a worker to process in time, the ventilation mechanism and the ventilation mechanism 21 are remotely controlled through the data storage transmitter 14 to operate in an accelerating mode, and the carbon dioxide fire extinguishing device 15 is controlled to extinguish fire.
Further, an electrostatic dust collection plate 20 is arranged inside the power distribution cabinet shell 3; dust inside the apparatus can be absorbed by the electrostatic cleaning plate 20.
Further, a solar generator 1 is clamped at the top end of the control box 2; through the arrangement of the solar generator 1, energy can be stored for the device outdoors, and the device is convenient to use.
Example 2
Referring to fig. 2, a moving mechanism 25 is disposed at the bottom end inside the base 10; the outer bottom end of the base 10 is provided with a groove corresponding to the moving mechanism 25; the moving mechanism 25 includes a mounting case; a lifting mechanism is arranged in the installation box; universal wheels are correspondingly arranged at the bottom end of the lifting mechanism; the universal wheel can be retracted into the mounting box through the lifting mechanism; through the arrangement of the universal wheels and the lifting mechanism, the device is convenient to move on the ground and is more convenient to use.
The working principle of the invention is as follows: the temperature and the humidity inside the shell 3 of the power distribution cabinet are detected and monitored in real time through a temperature sensor 19 and a humidity sensor 17; through the arrangement of the first water tank, the second water tank, the third water tank, the heat conducting rod and the semiconductor radiator, heat on the heat conducting rod and the radiating device can be absorbed in time, and a low-temperature environment is created around the radiating component to prevent the radiating component from being heated suddenly to damage the device; through the arrangement of the air exchange cover 9, the fan blades 22, the reversing mechanism 23 and the driving motor 24, the internal environment of the shell 3 of the power distribution cabinet can be exchanged, the heat dissipation of the hot end of the semiconductor radiator is accelerated, an electronic device is ensured to be in a proper environment, and the service life of the device is prolonged; the temperature state in the power distribution cabinet shell 3 is detected through the infrared sensor 18, and when a circuit short circuit occurs, the carbon dioxide fire extinguishing device 15 and the fire extinguishing nozzle 16 are automatically started to perform timely treatment, so that greater loss caused by fire is prevented; the alarm 13, the temperature sensor 19, the humidity sensor 17, the heat dissipation mechanism 21 and the ventilation mechanism can be controlled through the control panel 5; the working state of the device can be displayed in real time through the data storage transmitter 14, when a short circuit problem occurs, the alarm 13 gives an alarm to remind a worker to perform timely treatment, the ventilation mechanism and the ventilation mechanism 21 are remotely controlled to operate in an accelerated manner through the data storage transmitter 14, and the carbon dioxide fire extinguishing device 15 is controlled to extinguish fire; dust inside the apparatus can be absorbed by the electrostatic absorption plate 20; through the arrangement of the solar generator 1, energy can be stored for the device outdoors, and the device is convenient to use; the universal wheel can be retracted into the mounting box through the lifting mechanism; through the arrangement of the universal wheels and the lifting mechanism, the device is convenient to move on the ground and is more convenient to use. In conclusion, the intelligent management system is convenient to use, high in safety and convenient to carry out intelligent management.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. An alternating current low voltage power distribution cabinet convenient for intelligent management comprises a power distribution cabinet shell (3); the power distribution cabinet is characterized in that a control box (2) is installed at the top end of a power distribution cabinet shell (3); the power distribution cabinet shell (3) is movably connected with a cabinet door (6) through a hinge; an electronic lock (7) is arranged at the joint of the power distribution cabinet shell (3) and the cabinet door (6); the cabinet door (6) is provided with a glass window (4) and a control panel (5); the control panel (5) is electrically connected with the electronic lock (7); a heat dissipation mechanism (21) and an air exchange mechanism are arranged inside the power distribution cabinet shell (3); a cooling liquid inlet (8) is formed in the outer side of the power distribution cabinet shell (3) corresponding to the heat dissipation mechanism (21); a base (10) is installed at the bottom end of the power distribution cabinet shell (3); the bottom end of the base (10) is provided with an antiskid damping pad.
2. Ac low-voltage distribution cabinet convenient to manage intelligently according to claim 1, characterized by the fact that inside of said cabinet casing (3) there are temperature sensors (19) and humidity sensors (17).
3. The ac low-voltage distribution cabinet facilitating intelligent management according to claim 1, wherein said heat dissipation mechanism (21) comprises a first water tank, a second water tank and a third water tank; the first water tank is arranged at the top end of the interior of the power distribution cabinet shell (3); one side of the first water tank is communicated with the second water tank through a first pipeline; the second water tank is arranged at the bottom end of the interior of the power distribution cabinet shell (3); the first water tank is communicated with the third water tank through a second pipeline; the third water tank is communicated with the second water tank through a third pipeline; a pressure pump is arranged at the communication position of the third pipeline and the second water tank; and a semiconductor radiator is arranged on one side of the third water tank.
4. The ac low voltage power distribution cabinet facilitating intelligent management according to claim 3, wherein said semiconductor heat sink comprises a cold side and a hot side; the cold end extends into the inner side of the third water tank; the other side of the third water tank is provided with a heat conducting rod; the heat conducting rod is attached to the heat dissipation device.
5. Ac low-voltage distribution cabinet facilitating intelligent management according to claim 1, characterized in that said ventilation means comprise fan blades (22); the fan blade (22) is arranged on the right side of the semiconductor radiator; the fan blades (22) are connected with a reversing mechanism (23) through a coupler; the reversing mechanism (23) extends into the driving box and is connected with a driving motor (24); a ventilation cover (9) is arranged on the outer side of the power distribution cabinet shell (3) corresponding to the driving box; and an active carbon net is arranged on the air exchange cover (9).
6. The alternating current low voltage distribution cabinet convenient for intelligent management according to claim 1, characterized in that a carbon dioxide fire extinguishing device (15) is arranged inside the control box (2); a plurality of fire extinguishing nozzles (16) are arranged at the top end inside the power distribution cabinet shell (3) corresponding to the carbon dioxide fire extinguishing device (15); the fire extinguishing nozzle (16) is provided with an electromagnetic valve; and an infrared sensor (18) is arranged inside the power distribution cabinet shell (3).
7. The alternating current low voltage power distribution cabinet convenient for intelligent management according to claim 1 or 6, characterized in that a storage battery (11), a PLC control circuit board (12), an alarm (13), a carbon dioxide fire extinguishing device (15), a fire extinguishing nozzle (16) and a data storage transmitter (14) are arranged inside the control box (2); the storage battery (11) is electrically connected with the PLC control circuit board (12); PLC control circuit board (12) electric connection control panel (5), siren (13), temperature sensor (19), humidity transducer (17), heat dissipation mechanism (21) and mechanism of taking a breath, be equipped with data memory, data transmitter and big dipper locator on data storage transmitter (14).
8. Ac low-voltage distribution cabinet convenient to manage intelligently according to claim 1, characterized by that, the inside of said cabinet housing (3) is equipped with electrostatic dust-absorbing board (20).
9. The ac low-voltage distribution cabinet convenient for intelligent management according to claim 1, characterized in that the top end of said control box (2) is clamped with a solar generator (1).
10. The alternating current low voltage distribution cabinet convenient for intelligent management according to claim 1, characterized in that the bottom inside the base (10) is provided with a moving mechanism (25); the outer bottom end of the base (10) is provided with a groove corresponding to the moving mechanism (25); the moving mechanism (25) comprises a mounting box; a lifting mechanism is arranged in the installation box; the bottom end of the lifting mechanism is correspondingly provided with universal wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010223704.0A CN111244802A (en) | 2020-03-26 | 2020-03-26 | Alternating-current low-voltage power distribution cabinet convenient for intelligent management |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010223704.0A CN111244802A (en) | 2020-03-26 | 2020-03-26 | Alternating-current low-voltage power distribution cabinet convenient for intelligent management |
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| Publication Number | Publication Date |
|---|---|
| CN111244802A true CN111244802A (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010223704.0A Pending CN111244802A (en) | 2020-03-26 | 2020-03-26 | Alternating-current low-voltage power distribution cabinet convenient for intelligent management |
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| CN (1) | CN111244802A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111833779A (en) * | 2020-07-03 | 2020-10-27 | 刘雪芹 | Chinese language culture propagation display device |
| CN112074030A (en) * | 2020-08-20 | 2020-12-11 | 山东聊城金泰节能科技有限公司 | Super-frequency conversion magnetic current heating device with self-protection function |
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Application publication date: 20200605 |