CN202841025U - Positive and negative rotating frequency conversion system - Google Patents
Positive and negative rotating frequency conversion system Download PDFInfo
- Publication number
- CN202841025U CN202841025U CN 201220511584 CN201220511584U CN202841025U CN 202841025 U CN202841025 U CN 202841025U CN 201220511584 CN201220511584 CN 201220511584 CN 201220511584 U CN201220511584 U CN 201220511584U CN 202841025 U CN202841025 U CN 202841025U
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- controlling
- signal
- control panel
- limit position
- interface plate
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Abstract
The utility model relates to a positive and negative rotating frequency converter which is applied to the frequency converter field. The positive and negative rotating frequency conversion system comprises a power supply module, a single-chip controlling plate, a direct current/alternate current (DC/AC) power module, a controlling connector plate, wherein the single-chip controlling plate is used for controlling the Pulse-Width Modulation (PWM) signal generator to produce pulse-width modulation signal, the pulse-width modulation signal produced by the PWM signal generator is used for controlling the DC/AC power module to transfer the direct current to the three phase frequency conversion power supply which the electrical machine required; the power supply module is respectively connected with the single-chip controlling plate, PWM signal generator and the DC/AC power module, the controlling connector plate is used for receiving the spindle box move to the limit position and lower limit position signal, the controlling connector plate transmit the limit position signal and the under limit position signal to the sing-chip controlling plate as the controlling connector plate receives the limit position or under limit position signal, the single-chip controlling plate emits the controlling electrical machine changing the direction of rotation controlling signal to the PMW signal generator as the single-chip controlling plate receives the limit position signal or under limit position signal transmitted by the controlling connector plate. The positive and negative rotating frequency conversion system has the advantages of being simple in structure and operation, high in the automatic degree and the cost performance.
Description
Technical field
The utility model relates to a kind of rotating control frequency converter, is applied to the frequency converter field.
Background technology
Continuous progress along with science and technology, Machine-Tool Control part by former gear engage a gear speed change to the infinitely variable speeds future development, existing infinitely variable speeds mainly realizes the threephase asynchronous machine infinitely variable speeds by common frequency converter, but there is following defective in this speed change: the forward of lathe, counter-rotating needs are equipped with a plurality of A.C. contactors and use, and can realize its function.
The utility model content
Technical problem to be solved in the utility model provides a kind of simple in structure, simple and easy rotating variable frequency power supply of operation.
A kind of rotating control frequency converter, comprise power module, singlechip control panel, the DC/AC power modules, the control interface plate, described singlechip control panel is used for controlling described pwm signal generator and produces pulse-width signal, the pulse-width signal that described pwm signal generator produces is used for control DC/AC power modules and converts direct current to motor required three phase frequency changing power, described power module respectively with singlechip control panel, the pwm signal generator links to each other with the DC/AC power modules, and the control interface plate is used for receiving upper limit position and the lower position signal that main spindle box moves to.When the control interface plate receives the upper limit or lower position signal, described control interface plate passes to described singlechip control panel with the upper limit or the lower position signal that receives, when described singlechip control panel received the upper limit that described control interface plate transmits or lower position signal, described singlechip control panel sent the control signal of control motor change rotation direction to the pwm signal generator.
The beneficial effects of the utility model are: the utility model is simple in structure, and automaticity is high.
On the basis of technique scheme, the utility model can also be done following improvement.
Further, described singlechip control panel links to each other with described control interface plate is arranged, be provided with the input of motor forward and motor reversal input control end at described control interface plate, input the order of motor forward or reverse by described motor forward input and motor reversal input control end to singlechip control panel, described singlechip control panel is according to the pulse-width signal of the different rotation directions of this order output.Described singlechip control panel and control interface plate are integrated on the circuit board.
Adopt the beneficial effect of above-mentioned further scheme to be: little, the easy operating of design volume and cost performance are high like this.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model singlechip control panel pin function figure.
Embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used for explaining the utility model, is not be used to limiting scope of the present utility model.
As shown in Figure 1, the utility model comprises power module, singlechip control panel, the DC/AC power modules, the control interface plate, described singlechip control panel is used for controlling described pwm signal generator and produces pulse-width signal, the pulse-width signal that described pwm signal generator produces is used for control DC/AC power modules and converts direct current to motor required three phase frequency changing power, described power module respectively with singlechip control panel, the pwm signal generator links to each other with the DC/AC power modules, the control interface plate is used for receiving upper limit position and the lower position signal that main spindle box moves to, when the control interface plate receives the upper limit or lower position signal, described control interface plate passes to singlechip control panel with the upper limit or the lower position signal that receives, and described singlechip control panel sends the control signal of control variable-frequency motor change rotation direction to variable-frequency motor according to described detection signal.
As shown in Figure 2, the model of this single-chip microcomputer is SPMC75F2413, by the control signal to this single-chip microcomputer input motor forward or motor reversal work, single-chip microcomputer is according to the SVPWM waveform signal of three tunnel complementations of this control signal output, be PWM1H and PWM1L, PWM2H and PWM2L, PWM3H and PWM3L, this waveform signal makes the work of DC/AC analog line driver and produces the corresponding working signal that drives variable-frequency motor, so this variable-frequency motor is realized forward or reverse.When singlechip control panel received main shaft upper limit position that upper limit position or lower position transducer detect or lower position, singlechip control panel equally also sent the control signal of motor forward or reverse, so realize the motor forward or reverse.
This is simple to operate, and is simple in structure, and automaticity is high, realizes the automatic reverse function.Need not dpdt double-pole double-throw (DPDT) or switching over, automatically finish boring or tapping operation.
Motor forward, motor reversal, rotation tapping are three kinds of motor operation modes, and two adjustment of rotational speed all work to three kinds of operations.Wherein self-tapping operator scheme is a kind of intelligentized operation: in the course of processing, main spindle's can move up and down, if arrive upper limit position, main shaft can rotate counter-rotating, namely is originally clockwise to turn, and just changes now counterclockwise rotation into; Be originally counterclockwise rotation, just change into clockwise now and turning; If main shaft arrives the lower position, by that analogy.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (3)
1. frequency converter is controlled in a rotating, comprise power module, singlechip control panel, the DC/AC power modules, the control interface plate, described singlechip control panel is used for controlling described pwm signal generator and produces pulse-width signal, the pulse-width signal that described pwm signal generator produces is used for control DC/AC power modules and converts direct current to motor required three phase frequency changing power, described power module respectively with singlechip control panel, the pwm signal generator links to each other with the DC/AC power modules, the control interface plate is used for receiving upper limit position and the lower position signal that main spindle box moves to, it is characterized in that: when the control interface plate receives the upper limit or lower position signal, described control interface plate passes to described singlechip control panel with the upper limit or the lower position signal that receives, when described singlechip control panel received the upper limit that described control interface plate transmits or lower position signal, described singlechip control panel sent the control signal of control motor change rotation direction to the pwm signal generator.
2. frequency converter is controlled in a kind of rotating according to claim 1, it is characterized in that: described singlechip control panel links to each other with the control interface plate, be provided with the input of motor forward and motor reversal input at described control interface plate, input the order of motor forward or reverse by described motor forward input and motor reversal input to singlechip control panel, described singlechip control panel sends the control signal of motor forward or reverse according to this order.
3. frequency converter is controlled in a kind of rotating according to claim 1 and 2, and it is characterized in that: described singlechip control panel and control interface plate are integrated on the circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220511584 CN202841025U (en) | 2012-09-29 | 2012-09-29 | Positive and negative rotating frequency conversion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220511584 CN202841025U (en) | 2012-09-29 | 2012-09-29 | Positive and negative rotating frequency conversion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202841025U true CN202841025U (en) | 2013-03-27 |
Family
ID=47952623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220511584 Expired - Fee Related CN202841025U (en) | 2012-09-29 | 2012-09-29 | Positive and negative rotating frequency conversion system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202841025U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020139221A1 (en) | 2018-12-25 | 2020-07-02 | Arcelik Anonim Sirketi | An electric motor with mechanically-changed direction of rotation |
| CN114301344A (en) * | 2022-01-08 | 2022-04-08 | 图湃(北京)医疗科技有限公司 | Motor driving circuit, system and motor driving method |
-
2012
- 2012-09-29 CN CN 201220511584 patent/CN202841025U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020139221A1 (en) | 2018-12-25 | 2020-07-02 | Arcelik Anonim Sirketi | An electric motor with mechanically-changed direction of rotation |
| CN114301344A (en) * | 2022-01-08 | 2022-04-08 | 图湃(北京)医疗科技有限公司 | Motor driving circuit, system and motor driving method |
| CN114301344B (en) * | 2022-01-08 | 2024-04-09 | 图湃(北京)医疗科技有限公司 | Motor driving circuit, system and motor driving method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20140929 |
|
| EXPY | Termination of patent right or utility model |