CN212084983U - Excitation power supply - Google Patents
Excitation power supply Download PDFInfo
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- CN212084983U CN212084983U CN202021104191.3U CN202021104191U CN212084983U CN 212084983 U CN212084983 U CN 212084983U CN 202021104191 U CN202021104191 U CN 202021104191U CN 212084983 U CN212084983 U CN 212084983U
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- direct current
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Abstract
The utility model provides an excitation power supply, which comprises a shell and an IGBT radiator arranged in the middle of the shell, wherein an air inlet and an air outlet are respectively arranged at two ends of the shell, the air inlet and the air outlet are respectively connected with a mounting plate between two ends of the top of the IGBT radiator, and a heat dissipation fan is arranged at the inner side of the air outlet; the IGBT radiator comprises a radiating copper plate and radiating blades, and the plurality of radiating blades are arranged at the bottom of the radiating copper plate at intervals; the radiating blades are of hollow structures, a plurality of partition plates are arranged in the radiating blades, and the partitions construct the insides of the radiating blades to form radiating channels; a water pump and a liquid storage tank are respectively arranged at two ends of the top of the heat-radiating copper plate, and the water pump, the liquid storage tank and the heat-radiating channel are connected through pipelines to form a closed loop; the heat dissipation copper top center is provided with the IGBT module, and IGBT module one side is provided with the female row of arranging of direct current filter capacitor, positive direct current and female arranging of burden direct current, and female arranging of positive direct current and the female row of arranging of burden direct current are connected between direct current filter capacitor and IGBT module, when satisfying the heat dissipation, small, the light in noise and energy-concerving and environment-protective demand.
Description
Technical Field
The utility model belongs to the technical field of excitation power supply, concretely relates to excitation power supply.
Background
The traditional permanent magnet generator is excited by a permanent magnet per se, an alternating current/direct current conversion power electronic device is not needed for providing exciting current, but the manufacturing cost is gradually increased along with the shortage of rare earth material resources required for manufacturing the permanent magnet. Therefore, in the field of new energy wind power generation, the number of electric excitation generators is gradually increased, an IGBT module is generally used in an excitation power supply, a heat dissipation system is required to dissipate heat due to large heat productivity of an IGBT semiconductor power device, and the existing IGBT heat dissipation air duct mostly adopts a horizontal front-back inlet-outlet mode, so that the heat dissipation effect is poor; if the heat cannot be dissipated in time, the working life of the device is influenced, and the stability of the power supply is influenced; if the volume of the radiating air duct or the power of the radiating fan is simply increased, the current excitation power supply cannot be met, and the development is towards the direction of small volume, light noise, energy conservation and environmental protection.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an excitation power supply to it is not good to solve current excitation power supply radiating effect, causes the low and not good problem of job stabilization nature of working life, must satisfy characteristics small, the light in noise and energy-concerving and environment-protective to radiating design simultaneously.
The utility model provides a following technical scheme:
an excitation power supply comprises a shell and an IGBT radiator arranged in the middle of the shell, wherein an air inlet and an air outlet are respectively arranged at two ends of the shell, mounting plates are respectively connected between the air inlet and the air outlet and two ends of the top of the IGBT radiator, and a heat dissipation fan is arranged on the inner side of the air outlet; the IGBT radiator comprises a radiating copper plate and a plurality of radiating blades, and the plurality of radiating blades are arranged at the bottom of the radiating copper plate at intervals; the radiating blades are of hollow structures, a plurality of partition plates are arranged in the radiating blades, and the partitions construct the insides of the radiating blades to form radiating channels; a water pump and a liquid storage tank are respectively arranged at two ends of the top of the heat-radiating copper plate, and the water pump, the liquid storage tank and the heat-radiating channel are connected through pipelines to form a closed loop; the heat dissipation copper top center is provided with the IGBT module, IGBT module one side is provided with direct current filter capacitor, female arranging of positive direct current and female arranging of burden direct current are connected between direct current filter capacitor and IGBT module.
Preferably, the inner sides of the air inlet and the air outlet are respectively provided with a dustproof protective net.
Preferably, the height of the air inlet and the air outlet is greater than that of the IGBT radiator.
Preferably, be provided with the direct current wiring copper bar and exchange the wiring copper bar on the mounting panel, it has fast acting fuse to establish ties on the direct current wiring copper bar, it is provided with current sensor on the copper bar to exchange the wiring, the direct current wiring copper bar extends to the casing outside respectively with the copper bar of exchanging the wiring.
Preferably, the IGBT radiator still includes the adjusting module, the adjusting module includes temperature sensor, PWM speed regulator and microprocessor, temperature sensor sets up on the heat dissipation copper, temperature sensor connects in microprocessor's input serial ports, the output serial ports with microprocessor is connected to the PWM speed regulator, the PWM speed regulator with the heat dissipation fan is connected.
Preferably, the radiating fins are made of an aluminum alloy material.
Preferably, the mounting plate comprises a horizontal section, a circular arc section and an inclined section which are integrally formed.
Preferably, an air deflector is arranged between the mounting plate and the shell.
Preferably, the liquid storage tank and the heat dissipation channel are filled with condensate.
The utility model has the advantages that:
in the excitation power supply of the utility model, the heat of the IGBT module is transferred to the heat dissipation copper plate, the heat dissipation copper plate transfers the heat to the heat dissipation blades, and the condensate flows inside the heat dissipation blades by starting the water pump, so that the heat dissipation is accelerated; meanwhile, the heat dissipation fan is started, the air enters through the air inlet and enters the heat dissipation blades from the two sides of the air deflector, and the heat of the heat dissipation blades is taken out and discharged from the air outlet; when the temperature sensor senses the temperature rise of the heat dissipation copper plate, the PWM speed regulator correspondingly increases the rotating speed of the heat dissipation fan; in conclusion, the water-cooling and air-cooling dual design improves the heat dissipation effect, so that the heat dissipation requirement can be met under the condition that the size of the IGBT heat radiator is small; meanwhile, the heat dissipation fan is arranged at the air outlet, and the air deflector is arranged at the same time, so that the stability of the air body in the air duct is ensured, and the noise is low; the speed is regulated through the PWM speed regulator, so that energy conservation and environmental protection are realized.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a top view of the present invention;
FIG. 2 is a sectional view of the structure of the present invention;
labeled as:
1. the direct current power supply comprises a shell, 11 air inlets, 12 air outlets, 2 IGBT radiators, 21 heat dissipation copper plates, 22 heat dissipation blades, 23 partition plates, 24 heat dissipation channels, 25 water pumps, 26 liquid storage tanks, 3 mounting plates, 4 heat dissipation fans, 5 IGBT modules, 6 direct current filter capacitors, 61 positive direct current busbars, 62 negative direct current busbars, 7 direct current wiring copper bars, 71 alternating current wiring copper bars, 72 quick fuses, 73 current sensors and 8 air deflectors.
Detailed Description
As shown in fig. 1, the excitation power supply includes a housing 1 and an IGBT radiator 2 disposed in the middle of the housing 1, an air inlet 11 and an air outlet 12 are respectively disposed at two ends of the housing 1, the air inlet 11 and the air outlet 12 are respectively connected with a mounting plate 3 between two ends of the top of the IGBT radiator 2, the mounting plate 3 includes an integrally formed horizontal section, an arc section and an inclined section, a dc wiring copper bar 7 and an ac wiring copper bar 71 are disposed on the mounting plate 3, a fast fuse 72 is connected in series on the dc wiring copper bar 7, a current sensor 73 is disposed on the ac wiring copper bar 71, and the dc wiring copper bar 7 and the ac wiring copper bar 71 respectively extend to the outside of the housing; an air deflector 8 is arranged between the mounting plate 3 and the shell 1; a heat radiation fan 4 is arranged at the inner side of the air outlet 12; and dustproof protective nets are respectively arranged on the inner sides of the air inlet 11 and the air outlet 12.
As shown in fig. 2, the IGBT radiator 2 includes a radiating copper plate 21 and radiating fins 22, and the radiating fins 22 are made of an aluminum alloy material; a plurality of radiating blades 22 are arranged at the bottom of the radiating copper plate 21 at intervals; the radiating blades 22 are of a hollow structure, a plurality of partition plates 23 are arranged in the radiating blades 22, and the partition plates 23 construct the radiating blades 22 to form radiating channels 24; a water pump 25 and a liquid storage tank 26 are respectively arranged at two ends of the top of the heat dissipation copper plate 21, the water pump 25, the liquid storage tank 26 and the heat dissipation channel 24 are connected through pipelines to form a closed loop, and condensate is filled in the liquid storage tank 26 and the heat dissipation channel 24; the heights of the air inlet 11 and the air outlet 12 are greater than that of the IGBT radiator 2;
The working principle of the embodiment is as follows:
the heat of the IGBT module 5 is transferred to the heat dissipation copper plate 21, the heat dissipation copper plate 21 transfers the heat to the heat dissipation blades 22, and the condensate flows inside the heat dissipation blades 22 by starting the water pump 25, so that the heat dissipation is accelerated; meanwhile, the heat dissipation fan 4 is started, air enters through the air inlet 11, enters the heat dissipation blades 22 from two sides of the air deflector 8, and brings out heat of the heat dissipation blades 22 and is discharged from the air outlet 12; when the temperature sensor senses the temperature rise of the heat dissipation copper plate, the PWM speed regulator correspondingly increases the rotating speed of the heat dissipation fan 4.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. An excitation power supply is characterized by comprising a shell and an IGBT radiator arranged in the middle of the shell, wherein an air inlet and an air outlet are respectively arranged at two ends of the shell, mounting plates are respectively connected between the air inlet and the air outlet and two ends of the top of the IGBT radiator, and a heat dissipation fan is arranged on the inner side of the air outlet; the IGBT radiator comprises a radiating copper plate and a plurality of radiating blades, and the plurality of radiating blades are arranged at the bottom of the radiating copper plate at intervals; the radiating blades are of hollow structures, a plurality of partition plates are arranged in the radiating blades, and the partitions construct the insides of the radiating blades to form radiating channels; a water pump and a liquid storage tank are respectively arranged at two ends of the top of the heat-radiating copper plate, and the water pump, the liquid storage tank and the heat-radiating channel are connected through pipelines to form a closed loop; the heat dissipation copper top center is provided with the IGBT module, IGBT module one side is provided with direct current filter capacitor, female arranging of positive direct current and female arranging of burden direct current are connected between direct current filter capacitor and IGBT module.
2. An excitation power supply according to claim 1, wherein a dust-proof protective net is respectively arranged inside the air inlet and the air outlet.
3. An excitation power supply according to claim 1, wherein the height of said air inlet and outlet is greater than the height of said IGBT heat sink.
4. The excitation power supply according to claim 1, wherein a dc wiring copper bar and an ac wiring copper bar are provided on the mounting plate, a fast fuse is connected in series on the dc wiring copper bar, a current sensor is provided on the ac wiring copper bar, and the dc wiring copper bar and the ac wiring copper bar extend to the outside of the housing respectively.
5. The excitation power supply according to claim 1, wherein the IGBT radiator further comprises an adjustment module, the adjustment module comprises a temperature sensor, a PWM governor, and a microprocessor, the temperature sensor is disposed on the heat-dissipating copper plate, the temperature sensor is connected to an input serial port of the microprocessor, the PWM governor is connected to an output serial port of the microprocessor, and the PWM governor is connected to the heat-dissipating fan.
6. An excitation power supply according to claim 1, wherein said heat dissipating fins are made of an aluminum alloy material.
7. An excitation power supply according to claim 1, wherein said mounting plate includes a horizontal section, a circular arc section and an inclined section which are integrally formed.
8. An excitation power supply according to claim 1, wherein a wind deflector is provided between the mounting plate and the housing.
9. The excitation power supply according to claim 1, wherein the liquid reservoir and the heat dissipation channel are filled with condensate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021104191.3U CN212084983U (en) | 2020-06-15 | 2020-06-15 | Excitation power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021104191.3U CN212084983U (en) | 2020-06-15 | 2020-06-15 | Excitation power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212084983U true CN212084983U (en) | 2020-12-04 |
Family
ID=73558672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021104191.3U Active CN212084983U (en) | 2020-06-15 | 2020-06-15 | Excitation power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212084983U (en) |
-
2020
- 2020-06-15 CN CN202021104191.3U patent/CN212084983U/en active Active
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