CN220325498U - Variable frequency power supply control integrated cabinet of induction furnace - Google Patents
Variable frequency power supply control integrated cabinet of induction furnace Download PDFInfo
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- CN220325498U CN220325498U CN202321951792.1U CN202321951792U CN220325498U CN 220325498 U CN220325498 U CN 220325498U CN 202321951792 U CN202321951792 U CN 202321951792U CN 220325498 U CN220325498 U CN 220325498U
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- 230000006698 induction Effects 0.000 title claims abstract description 21
- 239000003990 capacitor Substances 0.000 claims abstract description 33
- 239000000498 cooling water Substances 0.000 claims abstract description 31
- 238000002955 isolation Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a variable-frequency power supply control integrated cabinet of an induction furnace, which comprises a cabinet body, wherein the top of the cabinet body is provided with lifting lugs, one side vertical surface of the cabinet body is provided with a plurality of cabinet doors, a rectifying area and an inversion area are arranged in the cabinet body, rectifying components are arranged in the rectifying area, and the output of an isolation component arranged in the rectifying area is respectively connected with a positive electrode input total row and a negative electrode input total row in the inversion area; the inverter comprises a cabinet body, wherein a plurality of groups of IGBT components are arranged in the inverter zone, the input of each group of IGBT components is respectively connected to an anode input total row and a cathode input total row, two resonant capacitors are arranged in the inverter zone corresponding to each group of IGBT components, two output ends of each group of IGBT components are respectively connected with the corresponding resonant capacitors, the output of each resonant capacitor is respectively connected to two output total rows in the cabinet body, a cooling water inlet and outlet main pipe is arranged in the cabinet body, and cooling water branch pipes in the cabinet body are connected with the cooling water inlet and outlet main pipe to form a cooling water circulation pipeline. The utility model has reasonable structure, convenient hoisting, small occupied space and more safety and reliability.
Description
Technical Field
The utility model relates to a variable frequency power supply control integrated cabinet of an induction furnace, and belongs to the technical field of induction furnace control cabinets.
Background
The induction furnace is an electric heating device which utilizes the electromagnetic induction principle to induce current in the metal material in an alternating magnetic field, thereby heating the material until the material is melted. The main components of the induction furnace comprise an inductor, a furnace body, a power supply, a capacitor, a control system and the like, and in the principle, rectification, IGBT (insulated gate bipolar transistor) and transformer are adopted to reach a load, wherein the problems of design of a cooling system, use safety of an installation space and the like are considered. However, the existing designs do not solve well.
In the prior art, as disclosed in application number 2022201156642, in the design of a cabinet body, a rectifying cabinet and a power cabinet are separately designed, so that the installation space of a customer and a connecting piece required between two cabinet bodies are increased; meanwhile, the cooling water pipe and the output bus are designed at the top of the power cabinet, and the whole cabinet body needs to be hoisted in transportation and installation due to the weight of the whole cabinet body, so that the design of the cabinet body is quite unreasonable, the hoisting operation is not facilitated, and potential safety hazards are easily caused when the cooling water pipe leaks in use.
In order to better facilitate the use of customers, a more reasonable cabinet structure needs to be designed.
Disclosure of Invention
In view of the foregoing problems in the prior art, a main object of the present utility model is to provide a variable frequency power supply control integrated cabinet of an induction furnace.
The technical scheme provided by the utility model is as follows: the variable-frequency power supply control integrated cabinet of the induction furnace comprises a cabinet body, wherein a lifting lug is arranged at the top of the cabinet body, a plurality of cabinet doors are arranged on one side vertical surface of the cabinet body, a rectifying area and an inversion area are arranged in the cabinet body, rectifying components are arranged in the rectifying area, and the output of an isolation component arranged in the rectifying area is respectively connected with a positive electrode input total row and a negative electrode input total row in the inversion area; the inverter is characterized in that a plurality of groups of IGBT components are arranged in the inverter region, the input of each group of IGBT components is respectively connected to an anode input main row and a cathode input main row, two resonance capacitors are arranged in the inverter region corresponding to each group of IGBT components, two output ends of each group of IGBT components are respectively connected with the corresponding resonance capacitors, the output of the two resonance capacitors is respectively connected to two output main rows in the cabinet body, the cooling water inlet and outlet main pipe is arranged in the cabinet body, and the cooling water branch pipes in the cabinet are connected with the cooling water inlet and outlet main pipe to form a cooling water circulation pipeline.
Further, the open ends of the cooling water inlet and outlet header pipes are all located on one side of the top of the cabinet body, and mounting flanges are arranged on the two open ends and used for connecting an external water inlet pipe and a water return pipe, the cooling water inlet and outlet header pipes comprise two vertical pipes and a horizontal communicating pipe connected with the two vertical pipes, and the horizontal communicating pipe is arranged on a bottom frame of the cabinet body.
Furthermore, a flowmeter is arranged on the cooling water inlet and outlet main pipe and is connected with a cooling water control system.
Further, the rectifying component comprises a three-phase rectifying bridge and a fast fuse connected with the input end of the three-phase rectifying bridge, the three incoming line busbar is connected with a circuit breaker in a group, and the circuit breaker is connected with the three-phase rectifying bridge through the fast fuse; the leading-in end of the inlet wire busbar is fixed at the top of the cabinet body through an insulating plate and is used for being connected with an external rectifier transformer.
Furthermore, two groups of incoming line busbar are arranged, two groups of three-phase alternating currents with the phase difference of 30 degrees are respectively connected with the output of the rectifier transformer outside the cabinet body, two groups of three-phase rectifier bridges are arranged, the input end of each three-phase rectifier bridge is connected with one group of incoming line busbar through a quick fuse and a circuit breaker, the output end of each group of three-phase rectifier bridge is connected with an isolating diode through an isolating switch, and the output ends of the isolating diodes are respectively connected with an anode input busbar and a cathode input busbar; the output ends of the other group of three-phase rectifier bridges are respectively connected with a direct current positive electrode output row and a direct current negative electrode output row, and the leading-out ends of the direct current positive electrode output row and the direct current negative electrode output row are fixed on a top plate of the rectifier region through insulating plates and used for power expansion or inversion and shunt.
Furthermore, the control surface of the circuit breaker and the control surface of the isolating switch are both positioned on the panel at one side of the rectification bin of the cabinet body.
Further, the IGBT component is located at the lower part of the cabinet body of the inversion region, the resonance capacitor is located at the upper part of the cabinet body of the inversion region, the output end of the IGBT component is connected with the input split row of the resonance capacitor through a bent eduction tube, and the resonance capacitor is connected with the output main row through the educed output split row.
Furthermore, the IGBT component is provided with four groups, the input end is respectively connected with the positive electrode input total row and the negative electrode input total row, the IGBT component comprises an IGBT module and a filter capacitor, and the filter capacitor is connected with the IGBT module and is used for filtering the input pulsating direct current into smooth direct current.
Further, the top of the cabinet body is provided with an overhaul lighting lamp, two sides of the cabinet body are provided with cabinet doors, the cabinet doors of the inversion area are provided with transparent plates, and the surfaces of the cabinet bodies provided with the cabinet doors are provided with infrared door control switches.
Further, a hollow square connecting block is arranged at each of four corners of the cabinet body, and the connecting blocks are welded with the frame rods of the cabinet body.
The utility model has the beneficial effects that: the cabinet body has reasonable structural design, is firm, convenient to hoist and mount and very convenient to transport and mount; rectifying and inversion are concentrated in two areas of a cabinet body, so that the structure is more compact, the occupied space is less, and the top is used for power supply, so that the power supply is safer and more reliable; the design of the cooling pipeline and the output bus is safer and more reliable, and even if leakage exists in the cooling pipeline, the influence of the leakage on the whole cabinet body is small; the maintenance lighting, the transparent door plate and the infrared door control enable daily observation to be convenient and maintenance to be safer.
Drawings
FIG. 1 is a perspective view of the structure of the present utility model;
FIG. 2 is a perspective view of a double door structure of the present utility model;
fig. 3 is a schematic view of an internal connection structure of the present utility model.
Legend description: 1. a cabinet body; 2. a cabinet door; 3. a rectifying section; 4. an inversion region; 5. the positive electrode inputs the total row; 6. a negative electrode input total row; 7. an IGBT assembly; 8. a resonance capacitor; 9. outputting a total row; 10. a mounting flange; 11. a connecting block; 12. a circuit breaker; 13. a wire inlet busbar; 14. a three-phase rectifier bridge; 15. a fast fuse; 16. an isolating switch; 17. an isolation diode; 18. a DC positive electrode output row; 19. a direct current negative electrode output row; 20. an infrared gating switch; 21. a bent eduction tube.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.
In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The utility model will be further described with reference to the drawings and the specific embodiments
Example 1
The variable-frequency power supply control integrated cabinet of the induction furnace shown in fig. 1 comprises a cabinet body 1 with lifting lugs arranged at the top, wherein a plurality of cabinet doors 2 are arranged on one side vertical surface of the cabinet body 1, a rectifying area 3 and an inverting area 4 are arranged in the cabinet body 1, rectifying components are arranged in the rectifying area 3, and an output of an isolation component arranged in the rectifying area 3 is respectively connected with an anode input bus 5 and a cathode input bus 6 in the inverting area 4; the inverter is characterized in that a plurality of groups of IGBT components 7 are arranged in the inverter region 4, the input of each group of IGBT components 7 is respectively connected to an anode input main row 5 and a cathode input main row 6, two resonant capacitors 8 are arranged in the inverter region 4 corresponding to each group of IGBT components 7, two output ends of each group of IGBT components 7 are respectively connected with the corresponding resonant capacitors 8, the output of the two resonant capacitors 8 is respectively connected to two output main rows 9 in the cabinet body, a cooling water inlet and outlet main pipe is arranged in the cabinet body, and cooling water branch pipes in the cabinet are connected with the cooling water inlet and outlet main pipe to form a cooling water circulation pipeline.
The open ends of the cooling water inlet and outlet header pipes are all positioned on one side of the top of the cabinet body, and the two open ends are provided with mounting flanges 10 for connecting an external water inlet pipe and a water return pipe, the cooling water inlet and outlet header pipes comprise two vertical pipes and a horizontal communicating pipe for connecting the two vertical pipes, and the horizontal communicating pipe is arranged on a bottom frame of the cabinet body. A flowmeter is arranged on the cooling water inlet and outlet main pipe and is connected with a cooling water control system. Four corners of the cabinet body 1 are respectively provided with a hollow square connecting block 11, and the connecting blocks 11 are welded with the frame rods of the cabinet body.
The rectifying component comprises a three-phase rectifying bridge and a fast fuse connected with the input end of the three-phase rectifying bridge, three incoming line busbar are connected with a breaker 12 in a group, and the breaker 12 is connected with the three-phase rectifying bridge through the fast fuse; the leading-in end of the inlet busbar 13 is fixed at the top of the cabinet body 1 through an insulating plate and is used for being connected with an external rectifier transformer.
In the embodiment, the cabinet body has reasonable structural design, is firm, is convenient to hoist and mount, and is very convenient to transport and install; rectifying and inversion are concentrated in two areas of a cabinet body, so that the structure is more compact, the occupied space is less, and the top is used for power supply, so that the power supply is safer and more reliable; the design of the cooling pipeline is safer and more reliable, and even if the cooling pipeline has leakage, the influence on the whole cabinet body is small.
Example 2
As shown in fig. 2 and 3, two groups of incoming line busbar 13 are arranged, two groups of three-phase alternating currents with the phase difference of 30 degrees are respectively connected with the output of the rectifier transformer outside the cabinet body, two groups of three-phase rectifier bridges 14 are arranged, the input ends of the three-phase rectifier bridges 14 are connected with one group of incoming line busbar 13 through a fast fuse 15 and a circuit breaker 12, the output ends of one group of three-phase rectifier bridges 14 are connected with an isolating diode 17 through an isolating switch 16, and the output ends of the isolating diode 17 are respectively connected with an anode input busbar 5 and a cathode input busbar 6; the output ends of the other group of three-phase rectifier bridges 14 are respectively connected with a direct current positive electrode output row 18 and a direct current negative electrode output row 19, and the output ends of the direct current positive electrode output row 18 and the direct current negative electrode output row 19 are fixed on the top plate of the rectifying area 3 through insulating plates for power expansion or inversion and shunt.
The rectifying area 3 of the cabinet body 1 is made into an electric control cabinet, and an electric control part is arranged in the cabinet body and comprises a voltage meter, an ammeter, a switch and the like, which are all of conventional designs and are not described again. The top of the cabinet body 1 is provided with an overhaul lighting lamp, two sides of the cabinet body 1 are provided with cabinet doors 2, a transparent plate is arranged on the cabinet doors 2 of the inversion area 4, and an infrared door control switch 20 is arranged on the surface of the cabinet body 1 provided with the cabinet doors 2.
The control surface of the circuit breaker 12 and the control surface of the disconnecting switch 16 are all positioned on the panel at one side of the cabinet rectifying bin.
The IGBT component 7 is positioned at the lower part of the cabinet body of the inversion region, the resonant capacitor 8 is positioned at the upper part of the cabinet body of the inversion region, the output ends of the IGBT component 7 are respectively connected with the input sub-row of the resonant capacitor 8 through a bent eduction tube 21, and the resonant capacitor 8 is connected with the output main row 9 through the educed output sub-row.
The IGBT assembly 7 is provided with four groups, input ends are respectively connected with the positive electrode input total row 5 and the negative electrode input total row 6, the IGBT assembly 7 comprises an IGBT module and a filter capacitor, and the filter capacitor is connected with the IGBT module and used for filtering input pulsating direct current into smooth direct current.
In the cabinet structure of this embodiment, the external rectifier transformer outputs two groups of three-phase alternating currents with 30 degrees of phase difference, the three-phase alternating currents are fed into the rectifier diodes through the incoming copper bars, the universal circuit breaker and the fast fuses of the equipment, 12 rectifier diodes form two groups of three-phase rectifier bridges, the three-phase alternating currents are rectified into pulsating direct currents, the direct currents are divided into two paths, one path of direct currents is output outside the electric cabinet, and the work ratio is expanded or the inversion and the shunt functions are achieved. The other path of the direct current is output to a direct current main row through an isolating switch and the direct current main row transmits direct current to the four paths of IGBT inverter bridges through a fuse. The IGBT inverter bridge consists of a filter capacitor, IGBT modules, a resonant capacitor, a direct current busbar, an output busbar and the like, the pulsating direct current is filtered into smooth direct current through the filter capacitor and is connected to a plurality of groups of IGBT modules through the direct current busbar, and a control circuit circularly triggers and conducts the IGBT modules, so that the current oscillates between the resonant capacitor and an induction coil to generate rated alternating current.
The top of the embodiment is used for power supply and one-path direct current output, so that the embodiment is safer and more reliable; the output main row is designed in the cabinet body, so that the cabinet is safer and more reliable; the maintenance lighting, the transparent door plate and the infrared door control enable daily observation to be convenient and maintenance to be safer.
Finally, it should be noted that: the embodiments described above are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (10)
1. A variable frequency power supply control integrated cabinet of induction furnace, its characterized in that: the intelligent cabinet temperature control device comprises a cabinet body, wherein the top of the cabinet body is provided with lifting lugs, one side vertical surface of the cabinet body is provided with a plurality of cabinet doors, a rectifying area and an inversion area are arranged in the cabinet body, rectifying components are arranged in the rectifying area, and the output of an isolation component arranged in the rectifying area is respectively connected with a positive electrode input total row and a negative electrode input total row in the inversion area; the inverter is characterized in that a plurality of groups of IGBT components are arranged in the inverter region, the input of each group of IGBT components is respectively connected to an anode input main row and a cathode input main row, two resonance capacitors are arranged in the inverter region corresponding to each group of IGBT components, two output ends of each group of IGBT components are respectively connected with the corresponding resonance capacitors, the output of the two resonance capacitors is respectively connected to two output main rows in the cabinet body, the cooling water inlet and outlet main pipe is arranged in the cabinet body, and the cooling water branch pipes in the cabinet are connected with the cooling water inlet and outlet main pipe to form a cooling water circulation pipeline.
2. The variable frequency power control integrated cabinet of an induction furnace according to claim 1, wherein: the cooling water inlet and outlet main pipe is characterized in that the opening ends of the cooling water inlet and outlet main pipe are all positioned on one side of the top of the cabinet body, and mounting flanges are arranged on the two opening ends and used for connecting an external water inlet pipe and a water return pipe, the cooling water inlet and outlet main pipe comprises two vertical pipes and a horizontal communicating pipe connected with the two vertical pipes, and the horizontal communicating pipe is arranged on a bottom frame of the cabinet body.
3. The variable frequency power control integrated cabinet of an induction furnace according to claim 2, wherein: and the cooling water inlet and outlet main pipe is provided with a flowmeter which is connected with a cooling water control system.
4. The variable frequency power control integrated cabinet of an induction furnace according to claim 1, wherein: the rectifying component comprises a three-phase rectifying bridge and a fast fuse connected with the input end of the three-phase rectifying bridge, wherein three incoming line busbar are connected with a circuit breaker in a group, and the circuit breaker is connected with the three-phase rectifying bridge through the fast fuse; the leading-in end of the inlet wire busbar is fixed at the top of the cabinet body through an insulating plate and is used for being connected with an external rectifier transformer.
5. The variable frequency power control integrated cabinet of an induction furnace according to claim 4, wherein: the input ends of the three-phase rectifier bridges are connected with a group of incoming line busbar through a quick fuse and a circuit breaker, the output ends of the group of three-phase rectifier bridges are connected with an isolating diode through an isolating switch, and the output ends of the isolating diode are respectively connected with an anode input busbar and a cathode input busbar; the output ends of the other group of three-phase rectifier bridges are respectively connected with a direct current positive electrode output row and a direct current negative electrode output row, and the leading-out ends of the direct current positive electrode output row and the direct current negative electrode output row are fixed on a top plate of the rectifier region through insulating plates and used for power expansion or inversion and shunt.
6. The variable frequency power control integrated cabinet of an induction furnace according to claim 5, wherein: the control surface of the circuit breaker and the control surface of the isolating switch are both positioned on the panel at one side of the rectification bin of the cabinet body.
7. The variable frequency power control integrated cabinet of an induction furnace according to claim 1, wherein: the IGBT component is positioned at the lower part of the cabinet body of the inversion region, the resonance capacitor is positioned at the upper part of the cabinet body of the inversion region, the output end of the IGBT component is connected with the input sub-row of the resonance capacitor through a bent eduction tube, and the resonance capacitor is connected with the output main row through the educed output sub-row.
8. The variable frequency power control integrated cabinet of an induction furnace according to claim 7, wherein: the IGBT assembly is provided with four groups, the input ends of the IGBT assembly are respectively connected with the positive electrode input total row and the negative electrode input total row, the IGBT assembly comprises an IGBT module and a filter capacitor, and the filter capacitor is connected with the IGBT module and used for filtering input pulsating direct current into smooth direct current.
9. The variable frequency power control integrated cabinet of an induction furnace according to claim 1, wherein: the cabinet body top sets up the maintenance light, and the both sides of the cabinet body all set up the cabinet door, and set up the transparent plate on the cabinet door, set up the infrared door control switch on the cabinet body place face of cabinet door.
10. The variable frequency power control integrated cabinet of an induction furnace according to claim 1, wherein: the four corners of the cabinet body are respectively provided with a hollow square connecting block, and the connecting blocks are welded with the frame rods of the cabinet body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321951792.1U CN220325498U (en) | 2023-07-24 | 2023-07-24 | Variable frequency power supply control integrated cabinet of induction furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321951792.1U CN220325498U (en) | 2023-07-24 | 2023-07-24 | Variable frequency power supply control integrated cabinet of induction furnace |
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| Publication Number | Publication Date |
|---|---|
| CN220325498U true CN220325498U (en) | 2024-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321951792.1U Active CN220325498U (en) | 2023-07-24 | 2023-07-24 | Variable frequency power supply control integrated cabinet of induction furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220325498U (en) |
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2023
- 2023-07-24 CN CN202321951792.1U patent/CN220325498U/en active Active
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