WO2021045067A1

WO2021045067A1 - Dimming power supply device

Info

Publication number: WO2021045067A1
Application number: PCT/JP2020/033153
Authority: WO
Inventors: 貴幸椎原; 弘之永谷; 伊平奥西; 和希小森; 蓮篠原
Original assignee: 株式会社レイマック
Priority date: 2019-09-02
Filing date: 2020-09-01
Publication date: 2021-03-11
Also published as: JPWO2021045067A1

Abstract

Provided is a dimming power supply device for inspection that dims a plurality of light sources, wherein a set value can be easily readjusted. This dimming power supply device (1) for inspection comprises: a dimming power supply body (2) that has a first setting terminal part (21) and a second setting terminal part (22), stores a dimming set value, can set the set value via the first setting terminal part (21) and via the second setting terminal part (22), and performs, when a trigger signal (St) is input, dimming by causing pulse currents (P1), (P2), ... to repeatedly flow in a plurality of light sources on the basis of the set value in response to the trigger signal; and a dimming power supply adapter (3) that has a third setting terminal part (31) and a setting value adjustment mechanism part (32), and can set the set value of the dimming power supply body (2) via the third setting terminal part (31) and the second setting terminal part (22) as the setting value adjustment mechanism part (32) moves, wherein the third setting terminal part (31) can be fitted in the second setting terminal part (22).

Description

Dimming power supply

The present invention relates to a dimming power supply device that dims a plurality of light sources.

Conventionally, when inspecting goods (products) produced on the production line of a factory on the inspection line, the goods are illuminated with a camera by illuminating the goods with multiple light sources according to the goods so that defects and foreign matter adhesion are not overlooked. Shooting is being done. The plurality of light sources are dimmed by a dimming power supply device for inspection. In the dimming power supply device, a trigger signal indicating the lighting timing of a plurality of light sources is input, and in response to the trigger signal, a pulse current is repeatedly passed based on a dimming set value for each of the plurality of light sources. Dimming. The dimming setting value in the dimming power supply device can be set in advance by the dimming power supply setting device connected via the signal cable.

For example, in Patent Document 1, in order to set a dimming setting value in a dimming power supply device by a dimming power supply setting device, an input device and a display device are connected to the dimming power supply setting device, and the display thereof. A dimming power supply system is disclosed in which the setting value can be easily set by displaying the setting screen of the dimming setting value on the apparatus using a matrix.

JP-A-2018-181589

However, there are many cases where the dimming power supply device wants to fine-tune the dimming setting value once set by the dimming power supply setting device, such as fine adjustment, with the passage of time. In such a case, the dimming power supply setting device can be used as one dimming power supply device once the necessary setting values have been set because many dimming power supply devices are used in the inspection line of the factory. It is not usually left in place. Therefore, in order to readjust the dimming power supply device, labor such as moving the dimming power supply setting device is required.

The present invention has been made in view of the above reasons, and an object of the present invention is to provide a dimming power supply device for inspection that dims a plurality of light sources so that the set value can be easily readjusted. There is.

In order to achieve the above object, the dimming power supply device for inspection according to the embodiment of the present invention has a first setting terminal portion and a second setting terminal portion, stores the dimming set value, and sets the dimming setting value. The value can be set via the first setting terminal unit and via the second setting terminal unit, and when a trigger signal is input, a plurality of light sources are pulsed based on the set value. It has a dimming power supply main body that dims by repeatedly passing a current, a third setting terminal portion, and a set value adjusting mechanism portion, and the third setting terminal portion can be fitted to the second setting terminal portion. A dimming power adapter capable of setting the set value of the dimming power supply main body via the third setting terminal portion and the second setting terminal portion by moving the set value adjusting mechanism unit is provided. ..

Preferably, a LAN cable can be connected to the first setting terminal portion.

Preferably, the dimming power adapter has a fourth setting terminal portion, and the set value is set to the dimming power supply via the fourth setting terminal portion, the third setting terminal portion, and the second setting terminal portion. The set value of the main body can be set.

Preferably, an RS232C cable, an RS485 cable, or a parallel communication cable can be connected to the fourth setting terminal unit.

According to the dimming power supply device for inspection of the present invention, the dimming setting values for a plurality of light sources can be easily readjusted.

It is a perspective view seen from the upper right of the front of the dimming power supply device which concerns on embodiment of this invention. It is a perspective view seen from the upper right of the front of the dimming power supply main body of the dimming power supply device of the same as above. It is a perspective view seen from the upper left of the back surface of the dimming power adapter of the dimming power supply device of the same as above. It is a block diagram which shows the system when the dimming power setting device is connected to the dimming power main body of the dimming power device of the same above. It is a block diagram which shows the system when the dimming power adapter is connected to the dimming power supply main body of the dimming power supply device of the same above. This is a circuit unit showing a detailed example of a light source dimmed by the dimming power supply device described above. It is a waveform diagram which shows the example of the trigger signal input to the dimming power supply device of the above, and the current output by it. It is a perspective view seen from the upper right of the front of the modification of the dimming power adapter of the dimming power supply device of the same as above. It is a block diagram which shows the system at the time of connecting the modification of the dimming power adapter to the dimming power main body of the dimming power supply device of the same above, and further connecting the dimming power setting device.

Hereinafter, a mode for carrying out the present invention will be described. As shown in FIG. 1, the dimming power supply device 1 for inspection according to the embodiment of the present invention includes a dimming power supply main body 2 and a dimming power supply adapter 3.

As shown in FIG. 2A, the dimming power supply main body 2 has a first setting terminal portion 21, a second setting terminal portion 22, a trigger signal input terminal portion 23, and a plurality of pulse current terminal portions 241 in the housing 20. It has 242, ..., A power input terminal 25, and a power switch 26.

As shown in FIGS. 3A and 3B, a plurality of

light sources

41, 42, ... Are connected to the plurality of pulse

current terminals

241, 242, .... The number of pulse

current terminals

241, 242, ..., And

light sources

41, 42, ... Can vary depending on the article to be inspected, the required inspection, and the like, and is particularly limited. Although it is not a thing, it can be, for example, 2, 4, 8, or the like. In the examples shown in FIGS. 1, 2A, 3A, 3B, etc., the number of pulse

current terminals

241 and 242, ... Is four. Further, in the examples shown in FIGS. 3A and 3B, the

light sources

41, 42, ... Connected to the pulse

current terminals

241, 242, ... Show only the

light sources

41, 42, and the rest of the illustrations are omitted. doing.

Each of the plurality of

light sources

41, 42, ... Is a plurality of light emitting elements (or 42b) between the anode side terminal 41a (or 42a) and the cathode side terminal 41b (or 42b), for example, as shown in FIG. (LED, etc.) 400 are connected in series and / or in parallel. In FIG. 4, the one indicated by reference numeral 401 is a resistor for current limiting.

Light sources

41, 42, ... Are connected to each of the pulse

current terminals

241, 242, ..., For example, via

electrical wiring

41A, 42A, ... (See FIG. 3A, etc.). Specifically, the pulse current terminal portion 241 is composed of two terminals 241a and 241b, the electric wiring 41A is composed of two wirings 41Aa and 41Ab, and the wiring 41Aa has one end of the terminal 241a and the other end of the light source. The wiring 41Ab is connected to the anode side terminal 41a of the 41, and one end of the wiring 41Ab is connected to the terminal 241b and the other end is connected to the cathode side terminal 41b of the light source 41. Similarly, the pulse current terminal portion 242 is composed of two

terminals

242a and 242b, the electric wiring 42A is composed of two wirings 42Aa and 42Ab, and the wiring 42Aa has one end of the terminal 242a and the other end of the light source 42. The wiring 42Ab is connected to the anode side terminal 42a of the above, and one end is connected to the terminal 242b and the other end is connected to the cathode side terminal 42b of the light source 42. The pulse current P1 flows from the terminal 241a to the wiring 41Aa, the light source 41, the wiring 41Ab, and the terminal 241b. The pulse current P2 flows from the terminal 242a to the wiring 42Aa, the light source 42, the wiring 42Ab, and the terminal 242b. The same applies to the other pulse current terminals.

As illustrated in FIG. 5, the dimming power supply main body 2 receives a trigger signal St via the trigger signal input terminal unit 23, and in response to the trigger signal St, a plurality of pulse current

terminal units

241, 242, ... Dimming (on / off) is performed by repeatedly flowing pulse currents (PWM currents) P1, P2, ... Based on the dimming setting values described later for each of the plurality of

light sources

41, 42, ... Including). The trigger signal St is input from the control unit of the inspection line. The ratio of the pulse width Th to the repetition period Tp of the pulse currents P1, P2, ... Is the gradation of dimming. The dimming power supply main body 2 dims a plurality of

light sources

41, 42, ..., And supplies power to them (see FIG. 4). Although not particularly limited, for example, the interval Tt of the trigger signal St is about 20 ms, the cycle Tp of repeating the pulse currents P1, P2, ... Is about 8 μs, and the pulse currents P1, P2, ... Flow. The maximum period (that is, the period during which the illumination of the

light sources

41, 42, ...) Tc can be about 20 ms. In FIG. 5, the period Tp (and pulse width Th) of the pulse currents P1 and P2 are shown enlarged for easy understanding. The camera C photographs the article M illuminated by each of the light sources 41 and 42 (see FIG. 3A and the like).

The dimming power supply main body 2 stores the above-mentioned dimming setting value in the dimming setting value storage unit 2ca (see FIG. 3A and the like). This set value can be set via the first setting terminal unit 21 (see FIG. 3A) and can be set via the second setting terminal unit 22 (see FIG. 3B).

As shown in FIG. 3A, the signal cable 21A can be connected to the first setting terminal unit 21, and the signal cable 21A can be connected to the dimming power supply setting device 5. The dimming power supply setting device 5 sets the dimming setting value of the dimming setting value storage unit 2ca via the signal cable 21A and the first setting terminal unit 21 of the dimming power supply main body 2. The dimming power supply setting device 5 is not particularly limited, but as in Patent Document 1, the input device 5A and the display device 5B are connected to the dimming power supply setting device 5, and the dimming setting value is set in the display device 5B. It is preferable to display the screen so that the set value can be easily set. Further, the signal cable 21A is preferably a LAN cable. The LAN cable is a typical cable most often used in the field of the dimming power supply device, and the dimming power supply setting device 5 can be easily configured by using the LAN cable and a normal personal computer.

As shown in FIG. 3B, the second setting terminal portion 22 is connected to the dimming power adapter 3 as described later. The dimming power adapter 3 sets the dimming setting value of the dimming setting value storage unit 2ca via the second setting terminal unit 22 of the dimming power supply main body 2. The specifications of the second setting terminal unit 22 are not particularly limited, but for example, the second setting terminal unit 22 may have two power supply terminals and two communication terminals for serial communication.

Inside the housing 20, the dimming power supply main body 2 has, for example, a CPU 2a, a program unit 2b, a non-volatile storage unit 2c, a work memory unit 2d, a first setting terminal interface unit 2e, a second setting terminal interface unit 2f, and the like. The configuration may include a trigger signal interface unit 2g, a light source driving unit 2h, and a power supply unit 2i (see FIGS. 3A and 3B). The dimming set value storage unit 2ca can be provided in the non-volatile storage unit 2c. A normal AC voltage (indicated by the symbol AC in FIG. 3A and the like) is input to the power supply unit 2i via the power input terminal unit 25, converted into a predetermined DC voltage, and the power supply switch 26 is turned on. When it is present, power is supplied to each part. The CPU 2a controls each unit by using the work memory unit 2d or the like according to the program stored in the program unit 2b as described below. That is, the CPU 2a is input through the first setting terminal unit 21 and the first setting terminal interface unit 2e (see FIG. 3A), or through the second setting terminal unit 22 and the second setting terminal interface unit 2f (see FIG. 3B). ) The input dimming set value can be stored in the dimming set value storage unit 2ca. As a result, the dimming setting value is set. Further, when the trigger signal St is input from the trigger signal input terminal unit 23 to the trigger signal interface unit 2g, the CPU 2a detects the trigger signal St and sets the dimming set value stored in the dimming set value storage unit 2ca. Based on this, the pulse currents (PWM currents) P1, P2, ... Are repeatedly passed through the light source driving unit 2h and the pulse

current terminals

241, 242, ... To the plurality of

light sources

41, 42, ....

The dimming power adapter 3 has a third setting terminal unit 31 (see FIG. 2B) and a set value adjusting mechanism unit 32 (see FIG. 1) in its housing 30. The dimming power adapter 3 can be made smaller and lighter than the dimming power supply main body 2 and the dimming power setting device 5.

The third setting terminal portion 31 can be fitted to the second setting terminal portion 22 of the dimming power supply main body 2 (see FIGS. 1, 2A, and 2B), and by being fitted, the third setting terminal portion 31 can be fitted to the second setting terminal portion 22. Be connected. The second setting terminal portion 22 may be, for example, a female type, and the third setting terminal portion 31 may be, for example, a male type.

The set value adjusting mechanism unit 32 can set the dimming set value of the dimming power supply main body 2 via the third setting terminal unit 31 and the second setting terminal unit 22 by being moved. The shape and detailed mechanism of the set value adjusting mechanism unit 32 are not particularly limited, but may be, for example, a knob shape as shown in FIG. Further, which of the plurality of

light sources

41, 42, ... To set the set value can be changed in order by pressing, for example, the knob-shaped set value adjusting mechanism unit 32. It is also possible to provide a display unit 33 that displays a dimming set value.

As shown in FIG. 3B, the dimming power adapter 3 has, for example, a CPU 3a, a program unit 3b, a work memory unit 3c, a third setting terminal interface unit 3d, and a setting value adjusting mechanism interface unit 3e inside the housing 30. Can be configured to have. The electric power of each part such as the CPU 3a is supplied from the dimming power supply main body 2 via the third setting terminal part 31. The CPU 3a controls each unit by using the work memory unit 3c or the like according to the program stored in the program unit 3b as described below. That is, the CPU 3a detects the movement of the set value adjusting mechanism unit 32 through the set value adjusting mechanism interface unit 3e, and sends the corresponding data to the third setting terminal interface unit 3d (and the third setting terminal unit 31). The dimming power supply main body 2 receives the data through the second setting terminal unit 22, and stores the dimming set value in the dimming set value storage unit 2ca as described above. When the display unit 33 is provided, the CPU 3a uses the dimming setting value storage unit 2ca of the dimming power supply main body 2 to store the dimming setting value data of the third setting terminal unit 31 and the third setting terminal interface unit. Received through 3d, the content is displayed on the display unit 33 via the display interface unit 3f, and the content of the dimming set value according to the movement of the set value adjustment mechanism unit 32 is displayed on the display unit 33 via the display interface unit 3f. It is also possible to display it in.

In this way, when the dimming power supply main body 2 and the dimming power adapter 3 as described above are provided, the dimming setting value is passed through the first setting terminal portion 21 of the dimming power supply main body 2 by the dimming power supply setting device 5. After setting, you can easily readjust it. The dimming power adapter 3 can be reused for other dimming power supply main bodies 2 among a plurality of dimming power supply main bodies 2 installed on the inspection line.

Further, as shown in FIG. 6, the dimming power adapter 3 can have a fourth setting terminal portion 34 in the housing 30. The signal cable 34A can be connected to the fourth setting terminal unit 34. The signal cable 34A is a signal cable other than the cable 21A (preferably a LAN cable) connected to the first setting terminal portion 21 of the dimming power supply main body 2. The signal cable 34A can be various, but can be an RS232C cable, an RS485 cable, a parallel communication cable, or the like.

Then, as shown in FIG. 7, the dimming setting value can be set by the dimming power supply setting device 5'(and the input device 5A'and the display device 5B') via the signal cable 34A other than the signal cable 21A. .. In the dimming power adapter 3, for example, the CPU 3a receives data from the dimming power setting device 5'via the fourth setting terminal unit 34 and the fourth setting terminal interface unit 3g, and receives the data from the third setting terminal. It is sent to the interface unit 3d (and the third setting terminal unit 31). The dimming power supply main body 2 receives the data through the second setting terminal unit 22, and stores the dimming set value in the dimming set value storage unit 2ca as described above.

By preparing a plurality of types of dimming power adapters 3 corresponding to each of the plurality of types of signal cables 34A, it is possible to easily increase the variation in the specifications of the external interface of the entire dimming power supply device 1. For example, three types of specifications are prepared as the number of pulse

current terminals

241 and 242, ..., 2, 4, or 8, and RS232C is used as a signal cable 34A for connection with the dimming power setting device 5'. If you prepare 3 types of specifications that use a cable, RS485 cable, or parallel communication cable, you can prepare a total of 6 types of dimming power supply main unit 2 or dimming power adapter 3 to make a total of 9 types of 3x3 adjustments. Variations in the specifications of the external interface of the optical power supply device 1 can be prepared. On the other hand, in the conventional dimming power supply device (conventional dimming power supply device not composed of the dimming power supply main body 2 and the dimming power supply adapter 3), there are variations in the specifications of the external interface of the nine types of dimming power supply devices 1. In order to prepare the above, nine types of dimming power supply devices 1 are prepared. By providing the dimming power adapter 3 with the fourth setting terminal portion 34 in this way, it is possible to easily increase the variation in the specifications of the external interface of the entire dimming power supply device 1.

Although the dimming power supply device according to the embodiment of the present invention has been described above, the present invention is not limited to the one described in the embodiment, and various design changes within the scope of the matters described in the claims. Is possible.

1 Dimming power supply 2 Dimming power supply main unit 20 Dimming power supply main unit housing 21 Dimming power supply main unit 1st setting terminal 21A Signal cable 22 Dimming power supply main unit 2nd setting terminal 23 Trigger of dimming power supply main unit

Signal input terminal

241, 242 Pulse current terminal of the dimming power supply main unit 241a, 242a One terminal of the pulse current terminal 241b, 242b The other terminal of the pulse current terminal 25 25 Power input terminal of the dimming power supply main unit 26 Power switch of optical power supply main unit 2a CPU of dimming power supply main unit
2b Program part of the dimming power supply main unit 2c Non-volatile storage unit of the dimming power supply main unit 2ca Dimming setting value storage unit of the dimming power supply main unit 2d Work memory unit of the dimming power supply main unit 2e First setting terminal interface of the dimming power supply main unit 2f 2nd setting terminal interface part of the dimming power supply body 2g Trigger signal interface part of the dimming power supply body 2h Light source drive part of the dimming power supply body 2i Power supply part of the dimming power supply body 3 Dimming power supply adapter 30 Dimming power supply adapter 31 Dimming power adapter 3rd setting terminal 32 Dimming power adapter setting value adjustment mechanism 33 Dimming power adapter display 34 Dimming power adapter 4th setting terminal 34A Signal cable 3a Dimming Power adapter CPU
3b Program part of dimming power adapter 3c Work memory part of dimming power adapter 3d 3rd setting terminal interface part of dimming power adapter 3e Setting value adjustment mechanism interface part of dimming power adapter 3f Display interface part of dimming power adapter 3g 4th setting terminal of dimming power

adapter Interface part

41, 42

Light source

41a, 42a Anotor side terminal of

light source

41b, 42b Cathode side terminal of

light source

41A, 42A Electrical wiring 41Aa, 42Aa The other wiring of the wiring 5, 5'Dimming

power setting device

5A, 5A' Input device 5B, 5B'Display device AC AC power supply C Camera M Article P1, P2 Pulse current St Trigger signal Tc Period during which pulse current flows Th pulse current Pulse width Tp Pulse current repetition cycle Tt Trigger signal interval

Claims

It has a first setting terminal unit and a second setting terminal unit, stores a dimming set value, and sets the set value via the first setting terminal unit and via the second setting terminal unit. It is possible, and in response to the input of the trigger signal, a dimming power supply main body that dims by repeatedly passing a pulse current through a plurality of light sources based on the set value.
It has a third setting terminal unit and a set value adjusting mechanism unit, and the third setting terminal unit can be fitted to the second setting terminal unit, and the third setting value adjusting mechanism unit is moved to move the third setting terminal unit. A dimming power adapter capable of setting the set value of the dimming power supply main body via the terminal portion and the second setting terminal portion, and
A dimming power supply for inspection characterized by being equipped with.
In the dimming power supply device for inspection according to claim 1.
The first setting terminal portion is a dimming power supply device for inspection, characterized in that a LAN cable can be connected.
In the dimming power supply device for inspection according to claim 1 or 2.
The dimming power adapter has a fourth setting terminal portion, and the set value is set to the dimming power supply main body via the fourth setting terminal portion, the third setting terminal portion, and the second setting terminal portion. A dimming power supply device for inspection, which is characterized in that a set value can be set.
In the dimming power supply device for inspection according to claim 3.
The fourth setting terminal unit is a dimming power supply device for inspection, characterized in that an RS232C cable, an RS485 cable, or a parallel communication cable can be connected.