CN201682425U - Automatic frequency conversion numerically-controlled and digitally-displayed efficient energy-saving MHF power source - Google Patents
Automatic frequency conversion numerically-controlled and digitally-displayed efficient energy-saving MHF power source Download PDFInfo
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- CN201682425U CN201682425U CN2010202032324U CN201020203232U CN201682425U CN 201682425 U CN201682425 U CN 201682425U CN 2010202032324 U CN2010202032324 U CN 2010202032324U CN 201020203232 U CN201020203232 U CN 201020203232U CN 201682425 U CN201682425 U CN 201682425U
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Abstract
The utility model discloses an automatic frequency conversion numerically-controlled and digitally-displayed efficient energy-saving MHF (medium-high frequency) power source. A three-phase power source is connected with a pin S1 of a main board SL315, and is then connected to a load via an inverter IGBT1 and an inverter IGBT2 after being connected to a filter circuit, a chopped wave voltage regulation circuit and a reactance tank circuit via a total-voltage rectification circuit; a current feedback is connected to a pin S3 of the main board SL315, and a voltage feedback is connected to a pin S7 of the main board SL315; pins S19 and S11 of the main board SL315 are respectively connected with a chopped wave driver and an inversion driver to be connected to a pin S13 of the main board SL315 via a change-over switch K1; and one end of a transformer is connected with a pin S14 of the main board SL315 while the other end thereof is connected to the load. The utility model has the benefits that accurate control to the output current and voltage is realized, and the change-over switch K1 can realize constant-power and constant-voltage output modes to meet the requirements of different working conditions. The MHF power source is extensively applied to such complete equipment as mid frequency induction hardening, heat penetration, smelting, annealing, welding, sintering and heat insulation equipment in the industries of forging, casting and heat treatment, and is particularly suitable for MHF heat penetration and quenching higher than 8,000 Hz.
Description
Technical field
The utility model relate to a kind of in high dual frequency power supplies.
Background technology
The load loss that its design defect of high dual frequency power supplies will make frequency conversion come out during at present original IGPS manually shows to show is more than half, does not have energy-efficient effect.
The utility model content
The purpose of this utility model provide a kind of energy-efficient in high dual frequency power supplies.
The purpose of this utility model realizes in the following way: high dual frequency power supplies during a kind of automatic frequency-conversion digital-control digital-display is energy-efficient, three phase mains connect the S1 pin of mainboard SL315 through D.C. regulated power supply; Three phase mains through the total head rectification circuit to filter circuit, voltage regulation circuit of chopping, reactance accumulator, respectively through inversion IGBT1, inversion IGBT2 to load; Current feedback connects the S3 pin of mainboard SL315, Voltage Feedback connects the S7 pin of mainboard SL315, the S19 pin of mainboard SL315, S11 pin connect the copped wave driving respectively, inversion drives by the S13 pin of K1 change over switch to mainboard SL315, the S14 pin of transformer one termination mainboard SL315, another termination load.
The utlity model has following beneficial effect, output current voltage is realized accurately control, change over switch K
1Realize permanent merit and constant voltage output mode, satisfy different operating mode demands.Be widely used in casting forging, casting and heat treatment industry at complete set of equipments such as mid frequency induction hardening, diathermanous, melting, annealing, welding, sintering, insulations, adapt to especially the above middle and high frequency of 8000HZ diathermanous, quench.
Description of drawings
Fig. 1 is a circuit block diagram of the present utility model;
Embodiment
As shown in Figure 1, high dual frequency power supplies during a kind of automatic frequency-conversion digital-control digital-display is energy-efficient, three phase mains connects the S1 pin of mainboard SL315 through D.C. regulated power supply; Three phase mains through the total head rectification circuit to filter circuit, voltage regulation circuit of chopping, reactance accumulator, respectively through inversion IGBT1, inversion IGBT2 to load; Current feedback connects the S3 pin of mainboard SL315, Voltage Feedback connects the S7 pin of mainboard SL315, the S19 pin of mainboard SL315, S11 pin connect the copped wave driving respectively, inversion drives by the S13 pin of K1 change over switch to mainboard SL315, the S14 pin of transformer one termination mainboard SL315, another termination load.
Operation principle of the present utility model is: three phase mains is delivered to inversion IGBT1, IGBT2 through rectification, filtering, copped wave, energy storage and is finished load current-change; Control system adopts Voltage Feedback, the negative feedback of the current feedback degree of depth, and output current voltage is realized accurately control, change over switch K
1Realize permanent merit and constant voltage output mode.
Claims (1)
- An automatic frequency-conversion digital-control digital-display energy-efficient in high dual frequency power supplies, it is characterized in that: three phase mains connects the S1 pin of mainboard SL315 through D.C. regulated power supply; Three phase mains through the total head rectification circuit to filter circuit, voltage regulation circuit of chopping, reactance accumulator, respectively through inversion IGBT1, inversion IGBT2 to load; Current feedback connects the S3 pin of mainboard SL315, Voltage Feedback connects the S7 pin of mainboard SL315, the S19 pin of mainboard SL315, S11 pin connect the copped wave driving respectively, inversion drives by the S13 pin of K1 change over switch to mainboard SL315, the S14 pin of transformer one termination mainboard SL315, another termination load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202032324U CN201682425U (en) | 2010-05-26 | 2010-05-26 | Automatic frequency conversion numerically-controlled and digitally-displayed efficient energy-saving MHF power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202032324U CN201682425U (en) | 2010-05-26 | 2010-05-26 | Automatic frequency conversion numerically-controlled and digitally-displayed efficient energy-saving MHF power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201682425U true CN201682425U (en) | 2010-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202032324U Expired - Fee Related CN201682425U (en) | 2010-05-26 | 2010-05-26 | Automatic frequency conversion numerically-controlled and digitally-displayed efficient energy-saving MHF power source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201682425U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117662A (en) * | 2013-03-08 | 2013-05-22 | 滁州学院 | PWM (pulse width modulation) chopping NC (numerical control) AC (Alternating Current) power supply |
-
2010
- 2010-05-26 CN CN2010202032324U patent/CN201682425U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117662A (en) * | 2013-03-08 | 2013-05-22 | 滁州学院 | PWM (pulse width modulation) chopping NC (numerical control) AC (Alternating Current) power supply |
| CN103117662B (en) * | 2013-03-08 | 2015-01-21 | 滁州学院 | PWM (pulse width modulation) chopping NC (numerical control) AC (Alternating Current) power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Tan Jian Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Tan Jian Document name: Notification of Termination of Patent Right |
|
| DD01 | Delivery of document by public notice | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 411101 innovation building, No. 9, Xiao Tong Road, Hunan, Xiangtan 1201 Patentee after: XIANGTAN NANYE ZHONGPIN HIGH-TECH DEVELOPMENT Co.,Ltd. Address before: 411101 No. 338 down street, Xiangtan, Hunan Patentee before: XIANGTAN NANYE ZHONGPIN HIGH-TECH DEVELOPMENT Co.,Ltd. Address after: 411101 innovation building, No. 9, Xiao Tong Road, Hunan, Xiangtan 1201 Patentee after: XIANGTAN NANYE ZHONGPIN HIGH-TECH DEVELOPMENT Co.,Ltd. Address before: 411101 No. 98 down street, Xiangtan, Hunan Patentee before: XIANGTAN NANYE ZHONGPIN HIGH-TECH DEVELOPMENT Co.,Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20130526 |