CN112531503A - Switch cabinet with electromagnetic shielding function and working method thereof - Google Patents
Switch cabinet with electromagnetic shielding function and working method thereof Download PDFInfo
- Publication number
- CN112531503A CN112531503A CN202011577619.0A CN202011577619A CN112531503A CN 112531503 A CN112531503 A CN 112531503A CN 202011577619 A CN202011577619 A CN 202011577619A CN 112531503 A CN112531503 A CN 112531503A
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- China
- Prior art keywords
- cabinet
- switch cabinet
- heat dissipation
- electromagnetic shielding
- module
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
-
- 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
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2321/00—Details of machines, plants or systems, using electric or magnetic effects
- F25B2321/02—Details of machines, plants or systems, using electric or magnetic effects using Peltier effects; using Nernst-Ettinghausen effects
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention relates to a switch cabinet with an electromagnetic shielding function, which comprises: the switch cabinet comprises a cabinet body and a cabinet door, wherein the cabinet door is hinged to the cabinet body, an electrical switch assembly is installed in the cabinet body, the switch cabinet further comprises a control device, and the control device consists of a heat dissipation device and a controller for controlling the heat dissipation device.
Description
Technical Field
The invention relates to a switch cabinet, in particular to a switch cabinet with an electromagnetic shielding function and a working method thereof.
Background
Due to the working conditions, a plurality of electric power cabinets are directly installed outdoors and directly receive the insolation of the sun, and the heat effect of electric power elements in the cabinets causes the situation that the temperature in the cabinets is sometimes overhigh, and at night, the temperature drops, water vapor in the air is easy to condense into water drops on the surfaces of components, so that the insulating property of electronic components is linearly reduced, even safety accidents are induced.
Disclosure of Invention
The invention aims to provide a switch cabinet with an electromagnetic shielding function, which reduces energy consumption as much as possible and reduces the emission of carbon dioxide, and a main control module can take effective measures according to different working states, thereby reducing the energy consumption and ensuring the effects of cooling and dehumidifying.
Technical content, a switch cabinet with electromagnetic shielding function includes: the switch cabinet also comprises a control device, the control device consists of a heat dissipation device and a controller for controlling the heat dissipation device, the heat dissipation device consists of a refrigeration dehumidification module, a water pipe, a heat dissipation module, an air inlet fan and an air outlet fan, the refrigeration dehumidification module is connected with the heat dissipation module through the water pipe, the air inlet fan and the air outlet fan are symmetrically arranged on the two side walls of the cabinet body, the controller consists of a shell, a temperature and humidity sensor and an MCU circuit board arranged in the shell, the refrigeration dehumidification module, the air inlet fan, the air outlet fan and the temperature and humidity sensor are all connected with the MCU circuit board, the shell is directly fixed on the cabinet door, a power inlet hole, a connecting wire threading hole and a signal wire wiring hole are arranged on the shell, and a magnetic ring is arranged on the power inlet hole, the power supply cable is used for installing the MCU circuit board, the connecting wire threading hole is used for the MCU circuit board and the control line of the air inlet fan, the air outlet fan and the refrigeration dehumidification module, the signal wire wiring hole is used for installing the connecting wire of the MCU circuit board and the temperature and humidity sensor, the temperature and humidity sensor is provided with two connecting wires, and the two connecting wires are installed in the cabinet body and outside the cabinet body respectively.
Further, the shell is made of stainless steel.
Furthermore, the refrigeration and dehumidification module consists of a semiconductor refrigeration sheet, a condenser, a water tank, a water pump and a heat insulation layer; the water tank is connected with the condenser through the semiconductor refrigeration piece, and the cold junction and the condenser contact of semiconductor refrigeration piece, the hot junction and the water tank contact of semiconductor refrigeration piece, the water tank passes through water pump and water piping connection, the heat preservation with water tank, semiconductor refrigeration piece cladding in the side of condenser.
Furthermore, a water receiving tank is further arranged below the refrigeration and dehumidification module, and a drain pipe is arranged at the bottom of the water receiving tank.
Furthermore, the heat dissipation module is composed of a heat insulation layer, a water tank and heat dissipation fins, wherein the heat dissipation fins are arranged on one side of the water tank, and the heat insulation layer coats the water tank on the side faces of the heat dissipation fins.
Furthermore, a plurality of radiating fin plates are arranged on the radiating fin.
Furthermore, a battery module is further arranged in the controller and supplies power to the controller.
Further, the top cover is arranged above the cabinet body, the solar panel is mounted on the top cover, and the solar panel is connected with the battery module and supplies power for the battery module.
Further, the cabinet body and the cabinet door are of double-layer structures, and heat insulation materials are arranged between the double-layer structures.
Furthermore, a sealing gasket is arranged at the contact position of the cabinet body and the cabinet door.
According to the working method, the solar panel is used for charging the battery module, the battery supplies power to all the control devices, and the defect of unstable solar energy is overcome due to the use of the battery; when the electric quantity is insufficient, the power can be directly supplied by the power cabinet, and the reliability of the device is ensured by the double power supplies;
when the control device works:
(1) when the temperature in the switch cabinet is higher than a preset threshold value T1 in the daytime and the temperature outside the switch cabinet is lower than a preset threshold value T1, starting a power supply of an air inlet fan and an air exhaust fan, stopping the semiconductor refrigerator, and mainly enabling the switch cabinet to be in a ventilation cooling dehumidification mode;
(2) when the humidity in the switch cabinet is higher than a preset threshold H1 and the outdoor temperature is lower than a threshold T2 at night, the air inlet and outlet fans are in a stop working state, the semiconductor refrigerator starts to work, and the switch cabinet is in a cooling and dehumidifying mode.
Has the advantages that: the invention discloses a switch cabinet with an electromagnetic shielding function, which reasonably utilizes heat generated by a semiconductor refrigeration sheet during refrigeration to heat components in the switch cabinet, reduces the humidity of the side of the components, increases the local temperature difference, improves the condensation efficiency, can maintain a higher constant temperature in a box, prevents condensation caused by over-low temperature, ensures the stable operation of the switch cabinet, effectively filters harmful high-frequency signals in a circuit by utilizing the characteristic that the resistance value of a magnetic material changes along with the change of signal frequency, has simple and reliable structure and long service life, and effectively ensures the safe operation of the switch cabinet.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a controller;
FIG. 3 is a schematic structural diagram of a refrigeration and dehumidification module;
FIG. 4 is a schematic structural diagram of a heat dissipation module;
1. a cabinet body; 2. a cabinet door; 3. a refrigeration dehumidification module; 31. a semiconductor refrigeration sheet; 32. a condenser; 33. a water tank; 34. a water pump; 35. a heat-insulating layer; 36. a water receiving tank; 37. a drain pipe; 4. a water pipe; 5. a heat dissipation module; 51. a heat sink; 6. an air intake fan; 7. an air outlet fan; 8. a housing; 81. a power supply wire inlet hole; 82. a connecting wire threading hole; 83. a signal line wiring hole; 9. an MCU circuit board; 10. a solar panel; 11. and a gasket.
Detailed Description
As shown in fig. 1 to 4, a switch cabinet with electromagnetic shielding function includes: the cabinet body 1, cabinet door 2, on the cabinet body 1 of cabinet door 2 articulated, install electrical switch assembly in the cabinet body 1, the cubical switchboard still includes controlling means, controlling means comprises heat abstractor and control heat abstractor's controller, heat abstractor comprises refrigeration dehumidification module 3, water pipe 4, heat dissipation module 5, inlet fan 6, the fan 7 of giving vent to anger, refrigeration dehumidification module 3 leads to pipe 4 and is connected with heat dissipation module 5, inlet fan 6, the fan 7 symmetry of giving vent to anger is installed on cabinet body 1 both sides wall, the controller comprises casing 8, temperature and humidity sensor and the MCU circuit board 9 of installing in casing 8, refrigeration dehumidification module 3, inlet fan 6, the fan 7 of giving vent to anger, temperature and humidity sensor all are connected with MCU circuit board 9, casing 8 snap-on cabinet door 2, be equipped with power entrance hole 81 on casing 8, Connecting wire through wires hole 82, signal line wiring hole 83, be equipped with the magnetic ring on the power entrance hole 81 for installation MCU circuit board 9 supply cable, connecting wire through wires hole 82 is used for MCU circuit board 9 and inlet fan 6, the control line of giving vent to anger fan 7, refrigeration dehumidification module 3, signal line wiring hole 83 is used for installing MCU circuit board 9 and temperature and humidity sensor's connecting wire, temperature and humidity sensor is equipped with two, installs respectively in the cabinet body 1 and outside the cabinet body 1, makes MCU circuit board 9 can directly acquire the inside, outside humiture of cabinet.
Further, the housing 8 is made of stainless steel.
Further, the refrigeration and dehumidification module 3 is composed of a semiconductor refrigeration sheet 31, a condenser 32, a water tank 33, a water pump 34 and a heat insulation layer 35; the water tank 33 is connected with the condenser 32 through the semiconductor refrigeration piece 31, the cold end of the semiconductor refrigeration piece 31 is contacted with the condenser 32, the hot end of the semiconductor refrigeration piece 31 is contacted with the water tank 33, the water tank 33 is connected with the water pipe 4 through the water pump 34, and the heat preservation layer 35 coats the water tank 33 and the semiconductor refrigeration piece 31 on the side surface of the condenser 32.
Further, a water receiving tank 36 is further arranged below the refrigeration and dehumidification module 3, and a drain pipe 437 is arranged at the bottom of the water receiving tank 36.
Further, the heat dissipation module 5 is composed of a heat insulation layer 35, a water tank 33 and a heat dissipation sheet 51, the heat dissipation sheet 51 is arranged on one side of the water tank 33, and the heat insulation layer 35 coats the water tank 33 on the side surface of the heat dissipation sheet 51.
Further, a plurality of heat dissipation fins are disposed on the heat dissipation plate 51.
Furthermore, a battery module is further arranged in the controller and supplies power to the controller.
Further, 1 top of the cabinet body is equipped with the top cap, installs solar panel 10 on the top cap, solar panel 10 is connected with battery module, for the power supply of battery module.
Further, the cabinet body 1 and the cabinet door 2 are both of double-layer structures, and heat insulation materials are arranged between the double-layer structures.
Furthermore, a sealing gasket 11 is arranged at the contact position of the cabinet body 1 and the cabinet door 2.
The working method comprises the following steps: the solar panel 10 is used for charging the battery module, the battery supplies power for all control devices, and the use of the battery overcomes the defect of unstable solar energy; when the electric quantity is insufficient, the power can be directly supplied in the electric power cabinet, and the reliability of the device is ensured by the double power supplies.
When the control device works:
(1) when the temperature in the switch cabinet is higher than a preset threshold value T1 in the daytime and the temperature outside the switch cabinet is lower than a preset threshold value T1, starting a power supply of an air inlet fan and an air exhaust fan, stopping the semiconductor refrigerator, and mainly enabling the switch cabinet to be in a ventilation cooling dehumidification mode;
(2) when the humidity in the switch cabinet is higher than a preset threshold H1 and the outdoor temperature is lower than a threshold T2 at night, the air inlet and outlet fans are in a stop working state, the semiconductor refrigerator starts to work, and the switch cabinet is in a cooling and dehumidifying mode.
The foregoing is only a preferred form of the invention and it should be noted that similar variations and modifications could be made by those skilled in the art without departing from the principles of the invention and these should be considered within the scope of the invention.
Claims (10)
1. A switch cabinet with electromagnetic shielding function comprises: the cabinet body, cabinet door, on the cabinet body of cabinet door articulated, install electrical switch assembly, its characterized in that in the cabinet body: the switch cabinet further comprises a control device, the control device is composed of a heat dissipation device and a controller for controlling the heat dissipation device, the heat dissipation device is composed of a refrigeration dehumidification module, a water pipe, a heat dissipation module, an air inlet fan and an air outlet fan, the refrigeration dehumidification module is connected with the heat dissipation module through the water pipe, the air inlet fan and the air outlet fan are symmetrically installed on two side walls of the cabinet body, the controller is composed of a shell, a temperature and humidity sensor and an MCU circuit board installed in the shell, the refrigeration dehumidification module, the air inlet fan, the air outlet fan and the temperature and humidity sensor are all connected with the MCU circuit board, the shell is directly fixed on the cabinet door, a power inlet hole, a connecting wire threading hole and a signal wire wiring hole are formed in the shell, a magnetic ring is arranged on the power inlet hole and used for installing an MCU circuit board power supply cable, and the connecting wire, The control lines of the air outlet fan and the refrigeration and dehumidification module, the signal line wiring holes are used for installing connecting lines of the MCU circuit board and the temperature and humidity sensors, and the temperature and humidity sensors are provided with two connecting lines and are respectively installed in the cabinet body and outside the cabinet body.
2. The switch cabinet with the electromagnetic shielding function according to claim 1, wherein: the shell is made of stainless steel.
3. The switch cabinet with the electromagnetic shielding function according to claim 1, wherein: the refrigerating and dehumidifying module consists of a semiconductor refrigerating sheet, a condenser, a water tank, a water pump and a heat-insulating layer; the water tank is connected with the condenser through the semiconductor refrigeration piece, and the cold junction and the condenser contact of semiconductor refrigeration piece, the hot junction and the water tank contact of semiconductor refrigeration piece, the water tank passes through water pump and water piping connection, the heat preservation with water tank, semiconductor refrigeration piece cladding in the side of condenser.
4. The switch cabinet with the electromagnetic shielding function according to claim 3, wherein: a water receiving tank is further arranged below the refrigeration and dehumidification module, and a drain pipe is arranged at the bottom of the water receiving tank.
5. The switch cabinet with the electromagnetic shielding function according to claim 1, wherein: the heat dissipation module is composed of a heat preservation layer, a water tank and heat dissipation fins, wherein the heat dissipation fins are arranged on one side of the water tank, and the heat preservation layer wraps the water tank on the side faces of the heat dissipation fins.
6. The switch cabinet with the electromagnetic shielding function according to claim 1, wherein: the controller is also internally provided with a battery module which supplies power to the controller.
7. The switch cabinet with the electromagnetic shielding function according to claim 6, wherein: the cabinet body top is equipped with the top cap, installs solar panel on the top cap, solar panel is connected with battery module, for battery module power supply.
8. The switch cabinet with the electromagnetic shielding function according to claim 1, wherein: the cabinet body and the cabinet door are of double-layer structures, and heat insulation materials are arranged between the double-layer structures.
9. The switch cabinet with the electromagnetic shielding function according to claim 1, wherein: and a sealing gasket is arranged at the contact position of the cabinet body and the cabinet door.
10. The working method of the energy-saving heat-preservation dehumidification switch cabinet according to claim 1 is characterized in that:
the solar panel is used for charging the battery module, the battery supplies power to all the control devices, and the use of the battery overcomes the defect of unstable solar energy; when the electric quantity is insufficient, the power can be directly supplied by the power cabinet, and the reliability of the device is ensured by the double power supplies;
when the control device works:
(1) when the temperature in the switch cabinet is higher than a preset threshold value T1 in the daytime and the temperature outside the switch cabinet is lower than a preset threshold value T1, starting a power supply of an air inlet fan and an air exhaust fan, stopping the semiconductor refrigerator, and mainly enabling the switch cabinet to be in a ventilation cooling dehumidification mode;
(2) when the humidity in the switch cabinet is higher than a preset threshold H1 and the outdoor temperature is lower than a threshold T2 at night, the air inlet and outlet fans are in a stop working state, the semiconductor refrigerator starts to work, and the switch cabinet is in a cooling and dehumidifying mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011577619.0A CN112531503A (en) | 2020-12-28 | 2020-12-28 | Switch cabinet with electromagnetic shielding function and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011577619.0A CN112531503A (en) | 2020-12-28 | 2020-12-28 | Switch cabinet with electromagnetic shielding function and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112531503A true CN112531503A (en) | 2021-03-19 |
Family
ID=74976775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011577619.0A Withdrawn CN112531503A (en) | 2020-12-28 | 2020-12-28 | Switch cabinet with electromagnetic shielding function and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112531503A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114382306A (en) * | 2022-02-17 | 2022-04-22 | 张康 | Energy-saving steel structure unit and steel structure |
-
2020
- 2020-12-28 CN CN202011577619.0A patent/CN112531503A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114382306A (en) * | 2022-02-17 | 2022-04-22 | 张康 | Energy-saving steel structure unit and steel structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210319 |