CN115208169B - Frequency converter fault protection device and frequency converter - Google Patents
Frequency converter fault protection device and frequency converter Download PDFInfo
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- CN115208169B CN115208169B CN202211110674.8A CN202211110674A CN115208169B CN 115208169 B CN115208169 B CN 115208169B CN 202211110674 A CN202211110674 A CN 202211110674A CN 115208169 B CN115208169 B CN 115208169B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/1216—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for AC-AC converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/327—Means for protecting converters other than automatic disconnection against abnormal temperatures
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
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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
- H05K5/0213—Venting apertures; Constructional details thereof
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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
-
- 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
- H05K5/06—Hermetically-sealed casings
- H05K5/069—Other details of the casing, e.g. wall structure, passage for a connector, a cable, a shaft
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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
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
-
- 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
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a frequency converter fault protection device and a frequency converter, relates to the technical field of frequency converters, and solves the problems that the existing frequency converter is protected by a self component, the running state cannot be adjusted when a fault occurs, the protection performance is influenced by a self shell, and the like; the utility model provides a converter fault protection device and converter, includes installation protection machanism, ventilation machanism is installed to installation protection machanism's inboard, ventilation machanism is including heat dissipation case, location case, fan case, first ventilation lagging, the lagging and the second ventilation lagging of airing exhaust, the location case is installed to the one end of heat dissipation case, the fan case is all installed to the inboard at location case both ends, four first ventilation lagging are installed to one side of fan case, the lagging of airing exhaust is installed to the other end of heat dissipation case. The invention effectively ensures that the frequency converter can play a role of protection when a fault occurs by carrying out multilayer protection and operation monitoring on the frequency converter.
Description
Technical Field
The invention relates to the technical field of frequency converters, in particular to a frequency converter fault protection device and a frequency converter.
Background
The frequency converter is an electric control device which applies a frequency conversion technology and a microelectronic technology and controls an alternating current motor by changing the frequency mode of a working power supply of the motor, and is widely applied to production equipment in various manufacturing fields.
The frequency converter can provide the required power supply voltage according to the actual requirement of the motor, thereby achieving the purposes of energy conservation and speed regulation.
However, the existing frequency converter is protected by self components, the operation state cannot be adjusted when a fault occurs, and the protection performance is influenced by the self shell; therefore, the existing requirements are not met, and a frequency converter fault protection device and a frequency converter are provided for the frequency converter fault protection device.
Disclosure of Invention
The invention aims to provide a frequency converter fault protection device and a frequency converter, and aims to solve the problems that the existing frequency converter proposed in the background art is protected by self components, cannot adjust the running state when a fault occurs, and has the protection performance influenced by a self shell.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a converter fault protection device, includes installation protection mechanism, ventilation mechanism is installed to installation protection mechanism's inboard, ventilation mechanism includes heat dissipation case, location case, fan case, first ventilation lagging, the lagging and the second that ventilates, the location case is installed to the one end of heat dissipation case, the fan case is all installed to the inboard at location case both ends, four first ventilation lagging are installed to one side of fan case, the lagging of airing exhaust is installed to the other end of heat dissipation case, four second ventilation lagging are installed to the bottom of the lagging of airing exhaust, fault protection mechanism is installed to the upper end of heat dissipation case, fault protection mechanism is including connecing electric box, circuit mainboard, circuit breaker and stabiliser, the inboard fixed mounting who connects the electric box has the circuit mainboard, the circuit breaker is installed to one side of circuit mainboard, the inboard of circuit mainboard and circuit breaker is equipped with the stabiliser.
Preferably, installation protection machanism includes protection box, sealed apron, operation box, transparency cover, touch display screen, connects electric conversion seat and wire installation pipe, protection box is installed to the lower terminal surface of sealed apron, one side fixed mounting of protection box has the operation box, the operation box is kept away from one side of protection box and is installed the transparency cover, touch display screen is installed to the inboard of operation box, touch display screen's bottom is installed and is connected electric conversion seat, the one side of connecting electric conversion seat is equipped with five wire installation pipes.
Preferably, heat conduction mechanism is installed in the outside of radiator box, heat conduction mechanism includes heat-conducting plate, first radiator, first seal box, honeycomb duct, second seal box and second radiator, the second radiator is installed to the inboard of second seal box, two honeycomb ducts are installed to one side of second radiator, first radiator is installed to the one end of honeycomb duct, first seal box is installed in the outside of first radiator, one side of first radiator is equipped with the heat-conducting plate.
Preferably, the wire mounting tube is in threaded connection with the power connection conversion seat, a wire is arranged on the inner side of the wire mounting tube, and the power connection conversion seat is electrically connected with the wire.
Preferably, the first ventilation sleeve plate is connected with the second ventilation sleeve plate through a first sealing box, the first sealing box is connected with the second sealing box through a second ventilation sleeve plate, and the first ventilation sleeve plate, the second ventilation sleeve plate, the first sealing box and the second sealing box are in through connection inside.
Preferably, the first radiator and the first seal box are fixedly connected through screws, the first radiator and the second radiator are connected through two flow guide pipes, cooling liquid is filled in the first radiator, the flow guide pipes and the second radiator, and radiating fins are arranged on one sides of the first radiator and the second radiator.
Preferably, the circuit main board, the circuit breaker and the voltage stabilizer are electrically connected, the electricity connecting box is connected with the heat dissipation box through a sealing gasket, and a ventilation groove is formed in the lower end face of the electricity connecting box.
The utility model provides a frequency converter, includes frequency converter main part and above-mentioned any one technical scheme frequency converter fault protection device, the frequency converter main part include insulating casing, sealed roof, smoke sense detection head, temperature detection head and connect the electrical terminal, one side of insulating casing is provided with connects the electrical terminal, sealed roof is installed to insulating casing's up end, smoke sense detection head is installed to the inboard of sealed roof one end, the temperature detection head is installed to the inboard of the sealed roof other end.
Preferably, both ends of the power connection end are fixedly connected with the insulating shell through screws, a frequency converter assembly is arranged on the inner side of the insulating shell, and the power connection end is electrically connected with the frequency converter assembly.
Preferably, the smoke detection head and the temperature detection head are both in threaded connection with the sealing top plate, a smoke sensor is arranged on the inner side of the smoke detection head, and a temperature sensor is arranged on the inner side of the temperature detection head.
Compared with the prior art, the invention has the beneficial effects that:
the invention can monitor the input and output of the power supply in real time through the fault protection mechanism, effectively ensure the stability of voltage and current, facilitate the real-time monitoring of the frequency converter assembly at the inner side of the insulating shell through the smoke detection head and the temperature detection head, and carry out closed ventilation through the first ventilation sleeve plate, the first seal box, the second ventilation sleeve plate, the second seal box and the exhaust sleeve plate, thereby effectively avoiding the accumulation of dust generated by the ventilation mechanism and the frequency converter main body and improving the cleanness degree of the structure.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the fault protection mechanism of the present invention;
FIG. 3 is a schematic view of the structure of the ventilation mechanism of the present invention;
FIG. 4 is a schematic cross-sectional view of a first heat sink according to the present invention;
FIG. 5 is a cross-sectional view of a second heat sink according to the present invention;
fig. 6 is a schematic structural diagram of the frequency converter main body according to the present invention.
In the figure: 1. installing a protection mechanism; 101. a protective box body; 102. sealing the cover plate; 103. an operation box; 104. a transparent cover; 105. a touch display screen; 106. a power connection conversion seat; 107. a wire mounting tube; 2. a fault protection mechanism; 201. a power receiving box; 202. a circuit main board; 203. a circuit breaker; 204. a voltage stabilizer; 3. a ventilation mechanism; 301. a heat dissipation box; 302. a positioning box; 303. a fan case; 304. a first ventilation sheathing; 305. an exhaust sleeve plate; 306. a second ventilation sheathing; 4. a heat conducting mechanism; 401. a heat conducting plate; 402. a first heat sink; 403. a first seal box; 404. a flow guide pipe; 405. a second seal box; 406. a second heat sink; 5. a frequency converter main body; 501. an insulating housing; 502. sealing the top plate; 503. a smoke detection head; 504. a temperature detection head; 505. and connecting the electric terminal.
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.
Referring to fig. 1 to 6, an embodiment of the present invention: the utility model provides a converter fault protection device, including installation protection mechanism 1, ventilation mechanism 3 is installed to the inboard of installation protection mechanism 1, ventilation mechanism 3 includes heat dissipation case 301, location case 302, fan case 303, first ventilation lagging 304, exhaust lagging 305 and second ventilation lagging 306, location case 302 is installed to the one end of heat dissipation case 301, fan case 303 is all installed to the inboard at location case 302 both ends, four first ventilation lagging 304 are installed to one side of fan case 303, exhaust lagging 305 is installed to the other end of heat dissipation case 301, four second ventilation lagging 306 are installed to the bottom of the lagging 305 of airing exhaust, fault protection mechanism 2 is installed to the upper end of heat dissipation case 301, can carry out real-time supervision to power input and output through fault protection mechanism 2, effectively guarantee the stability of voltage and electric current, fault protection mechanism 2 is including connecing electric box 201, circuit mainboard 202, circuit 203 and stabiliser 204, connect the inboard fixed mounting of electric box 201 to have circuit mainboard 202, circuit 203 is installed to one side of circuit mainboard 202, circuit 203 and the inboard of breaker 203 are equipped with stabiliser 204, whole through carrying out the multilayer operation to the converter, guarantee when the effective fault protection effect takes place.
Further, installation protection mechanism 1 includes protection box 101, sealed cover plate 102, operation box 103, transparent cover 104, touch display 105, connect electric conversion seat 106 and wire installation pipe 107, protection box 101 is installed to the lower terminal surface of sealed cover plate 102, one side fixed mounting of protection box 101 has operation box 103, operation box 103 keeps away from one side of protection box 101 and installs transparent cover 104, touch display 105 is installed to the inboard of operation box 103, touch display 105's bottom is installed and is connected electric conversion seat 106, the one side of connecting electric conversion seat 106 is equipped with five wire installation pipes 107, wire installation pipe 107 passes through threaded connection with electric conversion seat 106, the inboard of wire installation pipe 107 is provided with the wire, connect electric conversion seat 106 and pass through electric connection with the wire, be convenient for through installation protection mechanism 1 and carry out preliminary protection to the whole.
Further, the heat conducting mechanism 4 is installed on the outer side of the heat dissipation box 301, the heat conducting mechanism 4 includes a heat conducting plate 401, a first radiator 402, a first seal box 403, a flow guide pipe 404, a second seal box 405 and a second radiator 406, the second radiator 406 is installed on the inner side of the second seal box 405, two flow guide pipes 404 are installed on one side of the second radiator 406, the first radiator 402 is installed at one end of the flow guide pipe 404, the first seal box 403 is installed on the outer side of the first radiator 402, the heat conducting plate 401 is arranged on one side of the first radiator 402, and heat conducting and temperature reduction can be conveniently performed on the frequency converter main body 5 through the heat conducting mechanism 4.
Further, the first ventilation sheathing 304 is connected with the second ventilation sheathing 306 through the first seal box 403, the first seal box 403 is connected with the second seal box 405 through the second ventilation sheathing 306, the first ventilation sheathing 304, the second ventilation sheathing 306, the first seal box 403 and the second seal box 405 are connected in a penetrating manner inside, and closed ventilation is performed through the first ventilation sheathing 304, the first seal box 403, the second ventilation sheathing 306, the second seal box 405 and the exhaust sheathing 305, so that dust accumulation generated by the ventilation mechanism 3 and the frequency converter main body 5 can be effectively avoided.
Further, the first radiator 402 is fixedly connected with the first seal box 403 through screws, the first radiator 402 is connected with the second radiator 406 through the two flow guide pipes 404, the first radiator 402, the flow guide pipes 404 and the second radiator 406 are filled with cooling liquid, cooling fins are arranged on one sides of the first radiator 402 and the second radiator 406, and circulating cooling of the frequency converter main body 5 is facilitated through circulating conveying of the cooling liquid.
A frequency converter comprises a frequency converter main body 5 and the frequency converter fault protection device of any one technical scheme, wherein the frequency converter main body 5 comprises an insulating shell 501, a sealing top plate 502, a smoke detection head 503, a temperature detection head 504 and an electric connection end 505, the electric connection end 505 is arranged on one side of the insulating shell 501, the sealing top plate 502 is installed on the upper end face of the insulating shell 501, the smoke detection head 503 is installed on the inner side of one end of the sealing top plate 502, and the temperature detection head 504 is installed on the inner side of the other end of the sealing top plate 502.
Further, both ends of the power connection end 505 are fixed with the insulating housing 501 through screw connection, the inner side of the insulating housing 501 is provided with a frequency converter assembly, the power connection end 505 is electrically connected with the frequency converter assembly, the smoke detection head 503 and the temperature detection head 504 are both in threaded connection with the sealing top plate 502, the inner side of the smoke detection head 503 is provided with a smoke sensor, the inner side of the temperature detection head 504 is provided with a temperature sensor, and the smoke detection head 503 and the temperature detection head 504 are convenient to monitor the frequency converter assembly on the inner side of the insulating housing 501 in real time.
Checking whether the functions of the parts are intact, placing the frequency converter main body 5 on the inner sides of two heat-conducting plates 401, fixedly mounting the heat-conducting plates 401 through a first radiator 402, connecting the first radiator 402 with a second radiator 406 through two flow-guiding pipes 404, filling cooling liquid in the first radiator 402, the flow-guiding pipes 404 and the second radiator 406, switching on a power supply, connecting the frequency converter main body 5 with an electric adapter 106 through a lead arranged on the inner side of a lead mounting pipe 107, enabling the frequency converter main body 5 to supply power to the electric adapter 106, simultaneously monitoring the input and output of the power supply in real time through a fault protection mechanism 2, effectively ensuring the stability of voltage and current, installing a smoke detection head 503 and a temperature detection head 504 on the inner side of a sealed top plate 502, installing a smoke sensor on the inner side of the smoke detection head 503, installing a temperature sensor on the inner side of the temperature detection head 504, enabling the frequency converter assembly on the inner side of an insulating shell 501 to be monitored in real time through the smoke detection head 503 and the temperature detection head 504, enabling the heat transfer of the second radiator to be connected with a second radiator through a ventilation box 403, and a ventilation box 304, enabling the heat-conducting box to be connected with a second radiator through a ventilation box 403, and a second radiator 403, enabling the first radiator to be connected through a ventilation box 403, and a ventilation box 403, be convenient for realize the circulation heat dissipation operation to converter main part 5, simultaneously through first ventilation lagging 304, first seal box 403, second ventilation lagging 306, second seal box 405 and the lagging 305 of airing exhaust carry out closed ventilation, can effectively avoid the piling up of ventilation mechanism 3 and converter main part 5 production dust, improve the clean degree of structure, through installation protection mechanism 1, ventilation mechanism 3 and heat conduction mechanism 4 protect at many levels to the whole, effectively guarantee holistic safe in utilization.
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.
Claims (8)
1. The utility model provides a converter fault protection device, includes installation protection machanism (1), its characterized in that: the inner side of the installation protection mechanism (1) is provided with a ventilation mechanism (3), the ventilation mechanism (3) comprises a heat dissipation box (301), a positioning box (302), a fan box (303), a first ventilation sleeve plate (304), an exhaust sleeve plate (305) and a second ventilation sleeve plate (306), the positioning box (302) is installed at one end of the heat dissipation box (301), the fan box (303) is installed on the inner sides of the two ends of the positioning box (302), the four first ventilation sleeve plates (304) are installed on one side of the fan box (303), the exhaust sleeve plate (305) is installed at the other end of the heat dissipation box (301), the four second ventilation sleeve plates (306) are installed at the bottom end of the exhaust sleeve plate (305), a fault protection mechanism (2) is installed at the upper end of the heat dissipation box (301), the fault protection mechanism (2) comprises an electricity connection box (201), a circuit main board (202), a circuit breaker (203) and a voltage stabilizer (204), the circuit main board (202) is fixedly installed on the inner side of the circuit main board (202), and the circuit breaker (203) and the inner side of the circuit stabilizer (204) are provided with the circuit breaker (202);
the heat dissipation device is characterized in that a heat conduction mechanism (4) is installed on the outer side of the heat dissipation box (301), the heat conduction mechanism (4) comprises a heat conduction plate (401), a first radiator (402), a first seal box (403), a guide pipe (404), a second seal box (405) and a second radiator (406), the second radiator (406) is installed on the inner side of the second seal box (405), two guide pipes (404) are installed on one side of the second radiator (406), the first radiator (402) is installed at one end of each guide pipe (404), the first seal box (403) is installed on the outer side of the first radiator (402), and the heat conduction plate (401) is arranged on one side of the first radiator (402); the first ventilation sleeve plate (304) is connected with the second ventilation sleeve plate (306) through a first sealing box (403), the first sealing box (403) is connected with the second sealing box (405) through a second ventilation sleeve plate (306), and the first ventilation sleeve plate (304), the second ventilation sleeve plate (306), the first sealing box (403) and the second sealing box (405) are in inner through connection.
2. A frequency converter fault protection arrangement according to claim 1, characterized in that: installation protection machanism (1) is including protection box (101), sealed apron (102), operation box (103), transparency cover (104), touch display screen (105), connects electric changeover valve seat (106) and wire installation pipe (107), protection box (101) are installed to the lower terminal surface of sealed apron (102), one side fixed mounting of protection box (101) has operation box (103), one side that protection box (101) were kept away from in operation box (103) installs transparency cover (104), touch display screen (105) are installed to the inboard of operation box (103), touch display screen's (105) bottom is installed and is connect electric changeover valve seat (106), the one side of connecting electric changeover valve seat (106) is equipped with five wire installation pipe (107).
3. A frequency converter fault protection device according to claim 2, characterized in that: the lead installation pipe (107) is in threaded connection with the electric connection conversion seat (106), a lead is arranged on the inner side of the lead installation pipe (107), and the electric connection conversion seat (106) is electrically connected with the lead.
4. A frequency converter fault protection device according to claim 1, characterized in that: the first radiator (402) is fixedly connected with the first seal box (403) through screws, the first radiator (402) is connected with the second radiator (406) through two guide pipes (404), cooling liquid is filled in the first radiator (402), the guide pipes (404) and the second radiator (406), and radiating fins are arranged on one sides of the first radiator (402) and the second radiator (406).
5. A frequency converter fault protection device according to claim 1, characterized in that: the circuit board (202), the circuit breaker (203) and the voltage stabilizer (204) are electrically connected, the electricity connection box (201) is connected with the heat dissipation box (301) through a sealing gasket, and a ventilation groove is formed in the lower end face of the electricity connection box (201).
6. A frequency converter, characterized by: including converter main part (5) and the converter fault protection device of any one of claims 1 to 5, converter main part (5) includes insulating casing (501), sealed roof (502), smoke and feels detection head (503), temperature detection head (504) and connects electrical terminal (505), one side of insulating casing (501) is provided with electrical terminal (505), sealed roof (502) are installed to the up end of insulating casing (501), smoke and feels detection head (503) are installed to the inboard of sealed roof (502) one end, temperature detection head (504) are installed to the inboard of sealed roof (502) other end.
7. A frequency converter according to claim 6, characterized in that: the two ends of the electric connection end (505) are fixedly connected with the insulating shell (501) through screws, a frequency converter assembly is arranged on the inner side of the insulating shell (501), and the electric connection end (505) is electrically connected with the frequency converter assembly.
8. A frequency converter according to claim 6, characterized in that: the smoke detection head (503) and the temperature detection head (504) are both connected with the sealing top plate (502) through threads, a smoke sensor is arranged on the inner side of the smoke detection head (503), and a temperature sensor is arranged on the inner side of the temperature detection head (504).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211110674.8A CN115208169B (en) | 2022-09-13 | 2022-09-13 | Frequency converter fault protection device and frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211110674.8A CN115208169B (en) | 2022-09-13 | 2022-09-13 | Frequency converter fault protection device and frequency converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115208169A CN115208169A (en) | 2022-10-18 |
| CN115208169B true CN115208169B (en) | 2022-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211110674.8A Active CN115208169B (en) | 2022-09-13 | 2022-09-13 | Frequency converter fault protection device and frequency converter |
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| CN116761370B (en) * | 2023-08-21 | 2023-11-14 | 江苏易立电气股份有限公司 | Automatic DTU distribution terminal with fault isolation function and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN216087231U (en) * | 2021-08-31 | 2022-03-18 | 河南德沃电气有限公司 | Frequency converter fault protection device |
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| CN203691208U (en) * | 2013-12-01 | 2014-07-02 | 浙江友强实业有限公司 | Frequency converter control case |
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| CN213783938U (en) * | 2020-11-16 | 2021-07-23 | 华能东营河口风力发电有限公司 | PLC equipment with high heat dissipation performance |
| CN112911892A (en) * | 2020-12-24 | 2021-06-04 | 巢湖市金辉自控设备有限公司 | Multistage converter heat abstractor |
| CN214154383U (en) * | 2020-12-25 | 2021-09-07 | 四川省射洪星升电子有限责任公司 | Converter shell protection device |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN216087231U (en) * | 2021-08-31 | 2022-03-18 | 河南德沃电气有限公司 | Frequency converter fault protection device |
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