KR101137659B1 - Power supply used for plating - Google Patents

Abstract

It has a control panel structure that can be set numerically quickly, and provides a power supply for plating that can be expanded in parallel operation even when the output waveform is a pulse current.

A power supply device in which a plating current outputs a direct current or a specified waveform, the numerical setting consisting of an output ON / OFF key area, various mode selection key areas, a jog dial for numerical setting and a numerical display Three areas, which are areas, are divided by functions, and are formed in an arrangement approached in relation to the operation position, and a pulse rising start signal synchronizing means is connected to each of the first and second PWM signal generators, Plating power supply unit in which the timing of rising start of power output pulses in parallel connection is synchronized.

Description

Power supply for plating {POWER SUPPLY USED FOR PLATING}

BRIEF DESCRIPTION OF THE DRAWINGS The top view which shows one Embodiment by this invention.

2 is a circuit diagram showing an embodiment according to the present invention.

3 is a waveform diagram showing an embodiment according to the present invention;

4 is a principle explanatory diagram showing an embodiment according to the present invention.

5 is a layout view of a surface panel of a conventional power supply (FIG. 2 of Patent Document 1).

[Description of the code]

6 rising start signal synchronous means

21 first input rectifier circuit

31 first high frequency inverter

71 primary power supply

72 secondary power supply

30 Panel Display

33 output switch

34 step switch button

35 Start / Stop Button

36 Settings Button

37 Edit Button

38 Fill Button

39 Function Button

40 reset key

41 up-down key

42 high speed buttons

43 Display

44 Display

300 number display

301 unit indicator lamp

350 output on / off key

360 sets of keys

370 clear key

400 reset key

410 jog dial (rotary encoder)

510 operation mode selection key

520 Waveform Mode Select Keys

530 CC / CV select key

540 Display mode selection key

550 main unit / remote selection key

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

As a document which discloses this related art, paragraph 0021 of Patent Document 1 as follows shows, "FIG. 2 shows a panel display unit 30 and an input key of a power supply device for electroplating." In this case, an up / down button that matches the desired number is used, and 42 represents a high-speed button that speeds up the down button. And 43 denotes an output current and 44 denotes an output voltage. ”FIG. 2 shows a layout diagram in the surface panel (FIG. 2 of Patent Document 1 is given to FIG. 5 in the present specification).

The prior art example of an operation panel is shown in FIG. The display section 30 and input keys 34 to 42 are shown here. In this setting operation, there was a problem that the operation when matching the target number was not made faster. For example, when constant current control is performed at 46.20 amperes, the number to be set is set by displaying the number on each display of "46.20" by the up / down button 41 on the display unit. Press the up button 41 and raise the number, and when the desired number passes, the number is lowered by the down button to return immediately. The fast button 42 is used to quickly change the number. In the conventional operation panel, the up button was arrange | positioned in this way.

In the conventional operation panel, 34 is a short switch button, 35 is a start / stop, 36 is a setting, 37 is an edit, 38 is a write button, 39 is a function button, and 40 is a reset button. When operated by the above operation buttons, it is displayed on the panel display part 30 by liquid crystal display, for example. In particular, visibility was required for the panel display unit 30, which is hard to see by turning up dust.

[Patent Document 1] "Japanese Patent Laid-Open No. 5-44099", "Power Supply Device for Electroplating"

In recent years, it is necessary to adjust the waveform and the current value to the optimum value for many kinds of plated objects which require plating accuracy, and if there is a numerical setting error such as the current value, the finished product is out of the plating quality target. Since a large amount of loss has occurred, there has been a high demand for an operation panel configuration having excellent operability in a structure that can be quickly set and operated without a numerical setting miss. In addition, when there is a need to increase the current value 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 it with a large current plating power supply device. When the pulse waveform is required as an output waveform in parallel operation, the start of the rise of the pulse current of the output is not synchronized. Therefore, in the parallel operation, the synthesized waveform becomes a waveform in which the rise start has collapsed. For this reason, the preparation of the standard power supply which is optimal for parallel operation by the supply side was an important subject including the prompt response to a facility requester.

It is an object of the present invention to provide an operation panel structure that eliminates the above-mentioned conventional disadvantages with respect to an operation for setting a numerical value to be controlled and does not generate numerical setting errors. In addition, it is an additional problem of the present invention to provide a power supply device which can be expanded in a parallel operation method in which the output waveform is a pulse wave.

As for the operation panel structure, in the power supply unit which switches the constant current control and the constant voltage control to output the plating current and outputs a specified direct current or current waveform, the output on / off key area, various mode selection key areas, and numerical values. Three areas, each of which is a numerical setting area consisting of a rotary encoder for setting and a numerical display, are provided separately for each function, and are formed so as to be arranged in close proximity to each other as an operation position, and the speed of the setting work can be improved. It was set as the plating power supply device which has an operation panel structure.

According to claim 2, the rotary encoder is formed of a jog dial capable of outputting a set value corresponding to two-way operation of a rotation operation and a push operation, and specify a change in the number of digits by the push operation, and rotate It was set as the plating power supply apparatus which has an operation panel structure which is a rotary encoder which can change the number by operation, and can operate one-handedly and a quick operation speed is obtained.

4. The apparatus according to claim 3, wherein the various mode selection key areas have a mode selection key area including at least a waveform mode selection key and a CC (constant current) / CV (constant voltage) mode selection key. It was set as the power supply device for plating.

A first rectifying circuit comprising a first rectifying circuit, a first high frequency inverter, and a first PWM signal generator, which switches a constant current control and a constant voltage control, outputs a plating current, and outputs a specified current waveform. A second power supply having a power supply device, a second rectifying circuit, a second high frequency inverter, and a second PWM signal generator, for switching the constant current control and the constant voltage control to output the plating current, and output a specified current waveform; A plating power supply device in which the devices are connected in parallel, wherein the rising start signal synchronizing means is connected to the first PWM signal generator and the second PWM signal generator to synchronize the rising start timing of the plating power supply output pulse of the parallel connection. It was set as the power supply device for plating.

Inverting the high frequency inverter with constant voltage control or constant current control by PWM control and stepping down to a voltage suitable for plating using a lightweight, small high frequency transformer can realize a power supply device with high internal power loss with high power conversion efficiency. This is effective because it increases the industrial value that can contribute to the environment, such as reducing the material cost of the device and reducing the resources. By synchronizing the start of the rise of the signal of the PWM control, the output pulses of a plurality of plating power supply units that are operated in parallel can be synchronized, thereby eliminating the cause of the internal loss through which the circulating current flows during the parallel operation.

The embodiment by this invention of an operation panel structure is shown in FIG. 1, and it demonstrates, comparing and showing the layout of the conventional surface panel of the same purpose as shown in FIG. In FIG. 1, the numeric display unit 300 is a four-digit display LED and can convert A and V together with the upper end and the lower end. A rotary encoder (410 jog dial) 410 is disposed near a 4-digit display LED and is a jog dial capable of outputting a setting value corresponding to two-way operation between a rotation operation and a push operation. It is possible to designate the change of the number of digits and to perform one-handed operation in which the number is changed by the rotation operation, and a fast operation speed is obtained. As the jog dial, there is a structure disclosed in Patent Document 2, for example.

[Patent Document 2] Japanese Unexamined Patent Application Publication No. 6-178371, Jog Encoder

In the vicinity of the LED of the 4-digit display of the numeric display part 300, the display unit lamp 301 is arrange | positioned, and characters, such as A (ampere),%, H (hour), M (minute), S (second), etc. Since the backlight is formed to emit light into the lamp and is operated to operate with a membrane switch, the numerical setting miss can be eliminated and the quick setting is possible. Since the above operation / display part is surrounded by the reset key 400 at the edge of the numerical setting area, the operability is further improved.

In close proximity to the numerical value setting area described above, a mode selection key area including 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 disposed, The area | region enclosed with the set key 360 and the clear key 370 was set. It is effective that the display mode selection key 540 and the main body / remote selection key 550 are also arranged surrounded by various mode selection key areas.

In the operation mode, normal, memory, pattern operation, and the like are selected with selection keys and arranged together with the display lamps. The output on / off key 350 is arranged together with the display lamp in an independent area. Output on / off key area, various mode selection key area, three area, which is a numerical setting area consisting of rotary encoder for numerical setting and numerical display, are provided separately for each function, and are arranged in close proximity to the operation position. It was formed so that the speed of the setting work was improved. The rotary encoder is a jog dial, which allows one-handed operation and a speedy operation speed. Therefore, the rotary encoder has an effect of eliminating erroneous operation in comparison with setting a number with an up-down button described later.

The prior art example of an operation panel is shown in FIG. The display section 30 and input keys 34 to 44 are shown here. 41 is an up / down button that matches the number in the case of setting data, and a high speed button 42 which speeds up the up / down button. When the desired number passes by pressing the up button 41 and increasing the number, the down button 41 is used to decrease the number. The fast button 42 is used to quickly change the number. Thus, in the conventional operation panel, the up button was arrange | positioned at the panel. 34 is a switch button, 35 is a start / stop, 36 is a setting, 37 is a edit button, 38 is a write button, 39 is a function button, and 40 is a reset button. The present invention solved.

In such a power supply device installed in the field of plating work, the display part which becomes difficult to see by inverting dust is particularly required for visibility, so the operation speed improvement by the operation panel which made the display and the functional area of the operation part shown in FIG. It is an important element in management, and the contribution to the workplace of this invention is large.

In the circuit diagram showing one embodiment according to the present invention of FIG. 2, the first power supply device 71 connected to the commercial power supply 1 includes the first rectifier circuit 21 and the first high frequency inverter 31. ) And a first PWM signal generator 61, which converts the constant current control and the constant voltage control to output the 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. The first power supply 71, the second rectifier circuit 22, and the second high frequency inverter that output the designated current waveforms shown in Figs. 3A, 3B, 3C, and 3D. A second power supply device 72 having a 32 and a second PWM signal generator 62, converting the constant current control and the constant voltage control to output the plating current, and outputting the specified current waveform from the output terminal 100; ) Are connected in parallel. The second power supply device 72 also outputs a specified current waveform in the memory shown in Figs. 3A, 3B, 3C, and 3D. 3 is a waveform diagram showing an embodiment according to the present invention.

In the above-described plating power supply apparatus, by connecting the rising start signal synchronizing means 6 to the first PWM signal generator 61 and the second PWM signal generator 62, the power supply output pulse for the plating of the parallel connection is connected. It was set as the plating power supply device which synchronized the starting start timing. As shown in the principle explanatory drawing of FIG. 4, in FIG. 4A, the shift start timing of the pulses occurs randomly in the first and second power supplies, but FIG. 4 (b). Outputs synchronously so that the deviation of the start of pulse rise becomes 0.1 millisecond or less. In this way, the outputs of the two power supply units of the parallel connection are started to rise in timing and there is no waveform collapse of the pulse in the plating current. As the deviation increases, the parallel composite wave of the output current waveform becomes a step-shaped waveform in rising and falling.

It is possible to realize a power supply device having a high power conversion efficiency by using the inverters 31 and 32 to control the high frequency inverter by the PWM control to control the constant voltage or the constant current to step down to a voltage suitable for plating by using the lightweight and small high frequency transformer 4. The present invention is effective because it increases the industrial value that can contribute to the protection of the global environment, such as reducing the material cost of the device and reducing the resources.

By synchronizing the start of the rise of the signal of the PWM control, the output pulses of a plurality of plating power supply units which are operated in parallel can be synchronized, thereby eliminating the cause of the internal loss through which the circulating current flows during the parallel operation.

Improvement of plating quality is an important factor for operators, there is no waveform collapse of pulses in plating current, high contribution to this device with excellent operability, and high industrial value.

Providing an operation panel structure with good operability helps prevent a user's setting mistake, contributes to suppressing the production cost of plating by preventing defective plating, and to provide a plurality of power supply units operated in parallel with reduced internal loss. Industrial value is high because of the cost reduction effect.

Claims (4)

In the power supply unit for switching the constant current control and constant voltage control to output the plating current, and outputs a specified current waveform, A numerical setting area comprising an on / off key area, various mode selection key areas, a rotary encoder for numerical setting, and a numerical display, wherein the three areas are arranged separately surrounded by frames for each function; A first power supply device having a first rectifying circuit, a first high frequency inverter, and a first PWM signal generator, for switching the constant current control and the constant voltage control to output the plating current, and output a specified current waveform; A second power supply device having a second rectifier circuit, a second high frequency inverter and a second PWM signal generator, which switches the constant current control and the constant voltage control to output the plating current, and outputs a specified current waveform in parallel; , And a rising start signal synchronizing means connected to the first PWM signal generator and the second PWM signal generator to synchronize the rising start timing of the parallel power supply for pulsed plating power supply output pulses. The method of claim 1, The rotary encoder is formed of a jog dial capable of outputting a set value corresponding to two-way operation of a rotation operation and a push operation, and a numerical value change by a push operation and a number change by a rotation operation. Plating power supply having an operation panel structure, characterized in that the rotary encoder capable of one-handed operation. The method according to claim 1 or 2, And the various mode selection key areas are mode selection key areas including at least a waveform mode selection key and a CC (constant current) / CV (constant voltage) mode selection key. delete

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