JP4680664B2 - Plating power supply - Google Patents

Description

  The present invention relates to improvement of the output pulse waveform and operability of a plating power supply device.

  As a document disclosing this related technique, the following patent document 1 (paragraph 0021) states that “FIG. 2 shows the panel display unit 30 and the input key of the power supply device for electroplating ...” “41 indicates data setting. The UP / DOWN button is adjusted to the target number when performing, 42 is a high-speed button for increasing the speed of the UP / DOWN button, 43 is the output current, and 44 is the output voltage. FIG. 2 shows a layout diagram in the front panel. (FIG. 2 of Patent Document 1 is given as FIG. 5 in the text of this specification)

A conventional example of the operation panel is shown in a plan view in FIG. Here, the display unit 30 and the input keys 34 to 42 are shown. In this setting work, there was a problem that the operation when adjusting to the target number might be a faster setting. For example, if constant current control is performed at 46.20 amperes, the number to be set is set while displaying the number on each display of “46.20” with the UP / DOWN button 41. When the UP button 41 is pressed and the number is increased and the desired number passes, the number is lowered with the DOWN button so that it is immediately turned back. The high-speed button 42 causes the number to change quickly. In the conventional operation panel, the push buttons are arranged on the panel in this way.

In the conventional operation panel, 34 is a change button, 35 is start / stop, 36 is setting, 37 is editing, 38 is a writing button, 39 is a function button, and 40 is a reset button. When operated with the above operation buttons, it is displayed on the panel display unit 30 by, for example, a liquid crystal display. The panel display unit 30 that is difficult to see when covered with dust is particularly required to be visible.

“JP-A-5-44099”, “Power Supply Device for Electroplating”

  In recent years, it has been necessary to adjust the waveform and current value to the optimum values for many types of objects to be plated, and if there is a mistake in setting numerical values such as current values, the plating quality The finished product was far from the target, and a large amount of loss occurred. Therefore, there was a growing demand for an operation panel configuration with excellent operability and a structure that can be quickly set and operated without numerical setting errors. In addition, when the current value needs to be increased at the plating site, there is an option to increase the current value required in parallel operation in order to introduce the equipment at a lower cost than replacing the power supply device for large current plating. When a pulse waveform is required as an output waveform during parallel operation, the combined waveform becomes a waveform with a steep rise when operating in parallel without synchronizing the rising of the output pulse current. For this reason, it was an important issue to prepare an optimum standard power supply device for parallel operation on the supply side, including responsiveness to facility requesters.

  It is an object of the present invention to provide an operation panel structure that eliminates the above-described conventional drawbacks and does not cause a numerical setting error in the operation of setting a numerical value to be controlled. In addition, it is an incidental problem of the present invention to be able to provide a power supply device that can be added in a parallel operation method in which the output waveform is a pulse wave.

  Regarding the operation panel structure, in the power supply device that outputs the plating current by switching between constant current control and constant voltage control, and outputs the specified DC or current waveform, the output ON / OFF key area, various mode selection key areas, Three areas, a rotary encoder for setting numerical values and a numerical setting area consisting of numerical displays, are divided according to function, and the operation positions are related to each other so that they can be placed close together. A power supply device for plating having an operation panel structure characterized in that can be improved.

  With respect to claim 2, the rotary encoder is formed of a jog dial that can output a setting value corresponding to a two-way operation of a rotation operation and a push operation, and designates a digit change of a numerical value by a push operation, and a number by a rotation operation. The power supply device for plating has an operation panel structure that is a rotary encoder that can be changed by one hand and can obtain a quick operation speed.

  According to a third aspect of the present invention, the various mode selection key area is a mode selection key area having at least a waveform mode selection key area and a CC (constant current) / CV (constant voltage) mode selection key area. A power supply device for plating having an operation panel of the power supply device was obtained.

  According to claim 4, the first rectifier circuit, the first high-frequency inverter, and the first PWM signal generator are provided, and a constant current control and a constant voltage control are switched to output a plating current. A first power supply device that outputs a current waveform, a second rectifier circuit, a second high-frequency inverter, and a second PWM signal generator, and switching between constant current control and constant voltage control to perform plating current And a second power supply device that outputs a specified current waveform is connected in parallel, and in the plating power supply device, the rising signal synchronizing means is used to generate the first PWM signal generator and the second PWM signal. The power supply device for plating which synchronized the rising timing of the output pulse of the power supply device for plating connected in parallel by connecting to the vessel.

  It is a power supply device with high power conversion efficiency and low internal loss that makes a high frequency inverter constant voltage control by PWM control or constant current control to reduce the voltage to a voltage suitable for plating using a light and small high frequency transformer. This is effective to increase the industrial value that can be realized and contribute to the environment, such as reducing the material cost of equipment and reducing resources. Synchronizing the rising edges of the PWM control signals can synchronize the output pulses of multiple plating power supply units that are operated in parallel, thus eliminating the cause of internal loss that causes circulating current to flow between parallel operations. ing.

  Providing an easy-to-operate operation panel structure helps prevent user setting mistakes, prevents defective plating, contributes to reducing plating production costs, and reduces the internal loss of multiple power supplies operated in parallel Since an apparatus has the effect of reducing costs, it has a high industrial value.

FIG. 1 shows an embodiment of the operation panel structure according to the present invention, and a layout diagram of a conventional surface panel for the same purpose will be described with reference to FIG. In FIG. 1, a numeric display unit 300 is a four-digit LED, and can display by switching between A and V in both the upper and lower stages. A rotary encoder (jog dial) 410 is arranged in the vicinity of the 4-digit LED display. The rotary encoder is a jog dial that can output a setting value corresponding to a two-way operation of a rotation operation and a push operation. It is possible to specify one digit change and one-handed operation to change the number by rotating operation, and quick operation speed can be obtained. The jog dial has a structure disclosed in Patent Document 2, for example.
"JP-A-6-178371", "Jog encoder"

  A display unit lamp 301 is arranged in the vicinity of the 4-digit LED of the number display unit 300, and characters such as A (ampere),%, H (hour), M (minute), and S (second) are lamps. Since the backlight is structured so as to be raised and operated with a membrane switch, numerical setting errors can be eliminated and quick setting is possible. The operability is further improved because the above operation / display part is enclosed with the reset key 400 in the frame of the numerical value setting area.

A mode selection key area having an operation mode selection key 510, a waveform mode selection key 520, and a CC (constant current) / CV (constant voltage) mode selection key 530 is arranged in the vicinity of the above numerical setting area. Together with the set key 360 and the clear key 370, an enclosed area is provided.
It is effective that the display mode selection key 540 and the main body / remote selection key 550 are also surrounded by various mode selection key areas.

For the operation mode, normal, memory, pattern operation, etc. are selected with a selection key and arranged together with the indicator lamp. An output ON / OFF key 350 is disposed together with a display lamp in an independent area. Three areas, an output ON / OFF key area, various mode selection key areas, and a numerical setting area consisting of a rotary encoder for numerical setting and a numerical display, are divided according to function . As shown in FIG. Each region is surrounded by a frame, and is formed so as to be closely related to each other in terms of operation position, so that the speed of setting work is improved. Since the rotary encoder is a jog dial and can be operated with one hand and can be operated quickly, it has the effect of eliminating erroneous operations compared to setting numbers with the following UP / DOWN buttons.

  A conventional example of the operation panel is shown in a plan view in FIG. Here, the display unit 30 and the input keys 34 to 44 are shown. Reference numeral 41 denotes an UP / DOWN button that matches the number when data is set, and a high-speed button 42 that increases the speed of the UP / DOWN button. When the UP button 41 is pushed and the number is increased and the desired number passes, the number is lowered by the DOWN button 41 so that it is immediately turned back. The high-speed button 42 causes the number to change quickly. As described above, in the conventional operation panel, the push button is arranged on the panel. 34 is a change button, 35 is start / stop, 36 is set, 37 is edit, 38 is a write button, 39 is a function button, and 40 is a reset button. However, the present invention has solved these problems.

  In such a power supply device installed at the site of plating work, visibility is particularly required for the display unit that is difficult to see when covered with dust. Therefore, the display and function area of the operation unit shown in FIG. The improvement in operation speed by the operation panel is an important factor in the plating business management, and the contribution of the present invention to the workplace is great.

  In the circuit diagram showing an embodiment according to the present invention of FIG. 2, the first power supply device 71 connected to the commercial power supply 1 includes a first rectifier circuit 21, a first high-frequency inverter 31, and a first PWM signal generation. The device 61 is provided to switch between constant current control and constant voltage control to output a plating current from the output terminal 100, 4 is a high frequency transformer, and 5 is an output rectifier circuit. An operation panel 9 having a CPU for storing and outputting output waveforms is connected to the control circuit 8. A first power supply device 71 that outputs a designated current waveform shown in FIGS. 3A, 3B, 3C, and 3D, a second rectifier circuit 22, and a second high-frequency inverter 32 and a second PWM signal generator 62, switching between constant current control and constant voltage control, outputting a plating current, and outputting a designated current waveform from the output terminal 100. And are connected in parallel. The second power supply 72 also outputs a designated current waveform in the memory shown in FIGS. 3 (a), 3 (b), 3 (c), and 3 (d). FIG. 3 is a waveform diagram showing an embodiment according to the present invention.

  In the above plating power supply apparatus, the rising signal synchronizing means 6 is connected to the first PWM signal generator 61 and the second PWM signal generator 62 to synchronize the rising timing of the output pulses of the parallel connection plating power supply apparatus. A power supply device for plating was used. As shown in the principle explanatory diagram of FIG. 4, the output pulse current is shown in FIG. 4A. In FIG. 4A, the rise timing of the pulses is randomly generated in the first and second power supply devices. In (b), the pulse rise deviation is output in synchronism so that it is 0.1 millisecond or less. In this way, the outputs of the two power supply devices connected in parallel are started up in synchronization with each other, so that there is no pulse waveform collapse in the plating current. When the deviation increases, the parallel composite wave of the output current waveform becomes a stepped waveform at the rise and fall.

  Inverters 31 and 32 for reducing the voltage to a voltage suitable for plating using a light and small high-frequency transformer 4 by controlling constant voltage control or constant current by PWM control of the high-frequency inverter is a power supply device having high power conversion efficiency. This is effective to increase industrial value that can contribute to global environmental protection such as reduction of material cost of equipment and reduction of resources.

  Synchronizing the rising edges of the PWM control signals can synchronize the output pulses of multiple plating power supply units that are operated in parallel, thus eliminating the cause of internal loss that causes circulating current to flow between parallel operations. ing.

  Improvement of plating quality is an important factor for business operators, and the contribution of this device with excellent operability, which does not cause pulse waveform collapse in the plating current, is high, and its industrial value is great.

It is a top view which shows one embodiment by this invention. It is a circuit diagram which shows one embodiment by this invention. It is a wave form diagram which shows one embodiment by this invention. It is principle explanatory drawing which shows one embodiment by this invention. Arrangement of the surface panel of a conventional power supply (FIG. 2 of Patent Document 1)

Explanation of symbols

6 Rising Signal Synchronization Means 21 First Input Rectifier Circuit 31 First High Frequency Inverter 71 First Power Supply Device 72 Second Power Supply Device 30 Panel Display Unit 33 Output Switch 34 Change Button 35 Start / Stop Button 36 Setting Button 37 Edit button 38 Write button 39 Function button 40 Reset key 41 Up / down key 42 High speed button 43 Display unit 44 Display unit 300 Number display unit 301 Unit display lamp 350 Output ON / OFF key 360 Set key 370 Clear key 400 Reset key 410 Jog dial ( Rotary encoder)
510 Operation mode selection key 520 Waveform mode selection key 530 CC / CV selection key 540 Display mode selection key 550 Main unit / remote selection key

Claims (4)

In a power supply device that switches between constant current control and constant voltage control to output a plating current and outputs a specified current waveform, a first frame surrounding an ON / OFF key area for turning on / on the power output ; A second frame surrounding an area including various mode selection keys for selecting various modes such as an operation mode, and a third frame surrounding an area for numerical setting and display including a rotary encoder for numerical value setting and a numerical value display section When, the three frame is formed of, for plating, characterized by having an operation panel structures with improved setting operation speed by partitioning the power off setting function and mode selection and value setting function for each frame Power supply. The rotary encoder is composed of a jog dial that can output setting values corresponding to two-way operation, ie, rotation operation and push operation. One-handed operation is possible to change numeric digits by push operation and to change numbers by rotation operation. in and a rotary encoder quick operation speed is obtained, the plating power supply device according to claim 1. 3. The plating power supply device according to claim 1, wherein the second frame surrounds a mode selection key including at least a waveform mode selection key and a CC (constant current) / CV (constant voltage) mode selection key. A first rectifier circuit, a first high-frequency inverter, and a first PWM signal generator; a constant current control and a constant voltage control are switched to output a plating current; and a specified current waveform is output. 1 power supply device, a second rectifier circuit, a second high-frequency inverter, and a second PWM signal generator, switching between constant current control and constant voltage control and outputting a plating current, designated In the plating power supply device in which the second power supply device for outputting the current waveform is connected in parallel, the rising signal synchronizing means is connected in parallel by connecting the first PWM signal generator and the second PWM signal generator. plating power supply device according to any one of claims 1 to 3, characterized in that in synchronization with the rising timing of the plating power supply output pulses.

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