JP2002125373A - Power supply - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem of wiring being complicated, because a power supply is connected with a load function device by using external wiring, influence due to noise is apt to be applied, malfunctions are apt to be generated, and practical use is hindered. SOLUTION: AC input bus lines (Vin+), (Vin-), DC output bus lines (Vo+), (Vo-) and a current balance signal bus line (CB) which are used for connecting a first, second and third power source units 1, 2, 3 are subjected to connector connection, and a module power source is constituted; and an additional function unit 4 is connected with the module power source by using a connector, and added, thereby realizing a power source device having additional function which saves wiring and has large resistance of noise.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply comprising a module power supply comprising a plurality of power supply units, and an additional function unit having a predetermined function added to the module power supply to add a predetermined function. Related to the device.

[0002]

2. Description of the Related Art Conventionally, when an additional function device for adding some additional function is connected to a power supply device, the power supply device and the additional function device are connected by external wiring. In particular, the connection of an additional function device having a plurality of additional functions requires a large number of wires, and the wiring is complicated.

[0003]

As described above, since the power supply device and the additional function device are connected by the external wiring, the connection of the additional function device having a plurality of additional functions becomes complicated and practical. And the complicated wiring makes it susceptible to noise and malfunctions,
There was a problem that it hindered practical application.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems. It is an object of the present invention to provide a power supply device having an additional function which can save wiring and has a large noise immunity. To provide.

[0005]

In order to achieve the above object, a power supply according to the present invention includes a module power supply composed of a power supply unit having a bus line, and a bus line is used as the module power supply. Then, an additional function unit for giving a predetermined additional function to the module power supply is connected by connector connecting means.

The bus line includes an AC input bus line for supplying alternating current input from the outside to a power supply circuit, a DC output bus line for outputting DC converted by the power supply circuit, and an output of a plurality of power supply units. At least one of a first signal bus line used for control means for equalizing current and a second signal bus line used for detecting a state of each power supply unit.

With this configuration, a bus line for connecting a power supply unit, that is, an AC input bus line,
A DC power supply line and a signal bus line are connected by a connector to form a module power supply, and an additional function unit is connected to this module power supply by a connector to add a power supply with reduced wiring, large noise immunity, and additional functions. The device can be realized.

When the additional function unit has an interface with the outside, signals can be input and output to and from an external device using the interface.

The power supply unit is, for example, a relatively small switching power supply. The power supply circuit is, for example, a separately-excited switching power supply circuit. The AC input bus line is connected to an AC input terminal for guiding external commercial AC to a power supply circuit, and is built in the power supply unit. The DC output bus line is a bus line that is connected to the output side of the power supply circuit and passes the DC converted by the power supply circuit. The detection of the state of each power supply unit refers to an input voltage, an input current, an output voltage, an output current, a temperature, and the like.

[0010] The signal bus line is a current balance signal bus line or the like that passes a signal used for control means for equalizing the output current of each power supply unit when a plurality of power supply units are connected in parallel. Also,
The additional function units include an inrush current prevention unit, a branching unit, an output abnormality unit, and the like.

Further, in the power supply device according to the present invention, the additional function unit has a function of performing a predetermined conversion by inputting an external AC, and the AC converted by the additional function unit is utilized by using the AC input bus line. Power supply unit.

With this configuration, after an external AC power source is input and some conversion is performed, AC can be supplied to the power supply unit using the AC input bus line.

When the additional function unit is an inrush current prevention unit having an inrush current prevention function for preventing an inrush current of an external commercial power supply, an inrush current in the entire power supply system can be prevented. As a result, the same rush current value as when one power supply device is used can be realized, and equipment with a small surge current withstand can be used.

Further, in the power supply device according to the present invention, the additional function unit has a function of performing a predetermined conversion to the input DC, and the additional function unit uses the DC output bus line of the power supply unit to supply the DC. The input is performed, a predetermined conversion is performed, and the converted data is supplied to the load.

With this configuration, after a DC power supply is input using a DC output bus line to perform some conversion,
Can be supplied to the load.

If the additional function unit detects that at least one of the plurality of DC outputs is abnormal, the additional function unit is an output abnormality detection unit having a means for outputting or displaying the result. In
Upon detecting that at least one output is abnormal,
In order to output or display the result, a safe state can be ensured.

Further, the additional function unit includes a terminal for branching the DC output of the module power supply into a plurality of parts and connecting a load,
A function to cut off the module power supply line when detecting the output current flowing to the terminal and when the detected current reaches a set value, and a function to cut off the module power supply line by detecting an overvoltage from the module power supply. In the case of a branching unit that has a function of notifying an abnormal state of current or voltage and a reset function that can release the disconnection of the supply line, by combining multiple protection functions, a troublesome wiring process can be eliminated. A more secure branching function can be provided, contributing to downsizing of the entire system.

Further, in the power supply device according to the present invention, the additional function unit has a function of performing a predetermined conversion to the input AC, and the additional function unit utilizes the AC input bus line of one of the power supply units. And supplies the converted AC to the AC input bus line of the other power supply unit.

With this configuration, the alternating current input using the AC input bus line of one power supply unit can be supplied to the AC input bus line of the other power supply unit after some conversion is performed by the additional function unit. it can.

When the additional function unit is a separator having a function of connecting only between the AC input bus line of one power supply unit and the AC input bus line of the other power supply unit, different output voltages may be applied. Power supply units can be connected to each other without wiring, and power supply units with different output voltages can be connected to each other. it can. Further, it is possible to drive a plurality of power supply units each having a different output voltage only in one place of the wiring of the input system.

Further, in the power supply device according to the present invention, the additional function unit has a function of performing a predetermined conversion to the input DC, and the additional function unit uses the DC output bus line of one of the power supply units to perform the DC conversion. And supplies the converted DC to the DC output bus line of the other power supply unit.

With this configuration, the alternating current input to one of the power supply units is supplied to the additional function unit, and after the conversion is performed by the additional function unit, the converted power is supplied to the other power supply unit. it can.

In the case where the additional function unit is a series connection unit having a function of connecting the minus side line of the DC output bus line of one power supply unit to the plus side line of the DC output bus line of the other power supply unit. Can be connected with the same wiring as when a single power supply device is used, and the same wiring man-hour as a single power supply device can be achieved.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a power supply device according to the present invention will be described based on an embodiment shown in the drawings.

The power supply device according to this embodiment will be described as applied to a relatively small switching power supply, but the power supply device of the present invention is not limited to this switching power supply.

(Embodiment 1) FIGS. 1 and 2 show Embodiment 1 of a power supply unit according to the present invention.

In these figures, 1 is a first power supply unit, 2 is a second power supply unit, 3 is a third power supply unit, and 4 is an additional function unit. The first power supply unit 1 and the second power supply unit 2 and the second power supply unit 2 and the third power supply unit 3 are connected to each other by connector connecting means, and these form a module power supply. ing.

The first power supply unit 1 has required power supply circuit components built in a rectangular parallelepiped casing having a vertically long rectangular front panel.
It is a switching power supply for 0 VAC input, 24 VDC output, 2.5 A, and 60 W output.

The first power supply unit 1 has AC input terminals 5A and 5B, DC output terminals 6A and 6B, AC input bus lines (bus lines) (Vin +), (Vi
n-) and a DC output bus line (bus line) (Vo).
+), (Vo-), and a current balance signal bus line (signal bus line) (bus line) (CB).

The AC input terminals 5A and 5B are provided at the upper part of the front panel to guide an external commercial AC of 100 to 240 VAC to the power supply circuit 9, and are provided with AC input bus lines (V
in +) and (Vin-). Also, the DC output terminals 6A and 6B are arranged at the lower part of the front panel, and
It outputs VDC, with two plus sides plus two minus sides, one plus side and one minus side.
Each pair forms a pair of DC output terminals.

The DC output terminal 6A (positive side +)
Is the DC output bus line (Vo +) and the DC output terminal 6B
The (minus side) is connected to the DC output bus line (Vo-).

The power supply circuit 9 is a 24 V stabilized AC input from the outside via the AC input terminals 5A and 5B.
The power supply circuit 9 converts the voltage into a DC output voltage and outputs the converted voltage to the outside through DC output terminals 6A and 6B.
Is a switching power supply circuit, rectifies an external commercial AC by an input voltage rectifier circuit 7 and an input smoothing capacitor 8A to obtain a DC voltage, and switches the DC voltage by a switch element 13 to convert the DC voltage into a high frequency pulse. The pulse is transformed by a high-frequency transformer 10 and a high-frequency rectifier circuit 11
And the output is smoothed again by the output smoothing capacitor 8B. When the output voltage fluctuates, the control circuit 12 performs constant voltage control by changing the pulse width or the switching frequency when the switching element 13 switches.

The input side of the power supply circuit 9 is connected to AC input bus lines (Vin +) and (Vin-).
The output side of the power supply circuit 9 is connected to a DC output bus line (Vo).
+) And (Vo-).

The current balance signal bus line (CB) is used as control means (not shown) for equalizing the output current of each power supply unit when a plurality of power supply units are connected in parallel. The current balance signal bus line (CB) detects the output current with the resistor 14, and outputs a signal at a voltage proportional to the output current.

The first, second, and third power supply units 1, 2,
Reference numeral 3 denotes an AC input side connector 18A, 18B and a DC input side connector 19A, 19B on one side panel side.
And a current balance signal input connector 20. On the other side panel side, AC output connectors 21A and 21B and DC output connectors 22A and 22B are provided.
And the current balance signal output side connector 23. The AC input side connectors 18A and 18B and the AC output side connectors 21A and 21B are connected to an AC input bus line (V
in +) and (Vin-).
The DC input side connectors 19A and 19B and the DC output side connectors 22A and 22B are connected to a DC output bus line (Vo +),
The current balance signal input side connector 20 and the current balance signal output side connector 23 are connected to each other via a current balance signal bus line (CB).

The additional function unit 4 includes an AC input terminal 30
A, 30B, DC output terminals 31A, 31B, interface connection terminal 36, power conversion or signal processing circuit 32, AC input connectors 33A, 33B, DC input connectors 34A, 34B, and current balance signal input. And the AC input side connectors 33A and 33B are connected to an AC input bus line (Vin).
+) And (Vin-), and the DC input connectors 34A and 34B are connected to the DC output bus line (Vo +),
(Vo-) or the current balance signal input side connector 35 is connected to the current balance signal bus line (C
B).

The power conversion or signal processing circuit 32 includes AC input terminals 32a, 32b and DC output terminals 32c,
32d, a current balance signal input terminal 32e,
An interface connection terminal 32f is provided, and the AC input terminals 32a and 32b are connected to an AC input bus line (V
in +) and (Vin-), and the DC output terminals 32c and 32d are connected to the DC output bus line (Vo +),
(Vo-), and the current balance signal input terminal 32e is connected to the current balance signal bus line (C
B) is connected and the interface connection terminal 32
f is connected to the interface connection terminal 36.

The first, second, and third power supply units 1, 2,
The 3 and the additional function unit 4 are mounted on a din rail (not shown), and are connected in parallel in this order.

That is, the second and third power supply units 2 and 3 and the additional function unit 4 are arranged in this order on the right side of the first power supply unit 1. The output side connectors 21A and 21B, the DC output side connectors 22A and 22B, and the current balance signal output side connector 23 are the AC input side connectors 18A and 18B and the DC input side connectors 19A and 19 of the second power supply unit 2.
B, respectively, connected to the current balance signal input side connector 20.

The AC output side connectors 21A and 21B of the second power supply unit 2, the DC output side connector 22A,
22B, the current balance signal output side connector 23
AC input side connector 18A of the third power supply unit 3, 1
8B, DC input side connectors 19A and 19B, and current balance signal input side connector 20 respectively.

Then, the AC output side connectors 21A and 21B of the third power supply unit 3 and the DC output side connector 22
A, 22B, current balance signal output side connector 23
Is the AC input side connector 33A of the additional function unit 4,
33B, DC input connectors 34A and 34B, and current balance signal input connector 35, respectively.

Accordingly, the individual AC input bus lines (Vin +) and (Vin-) of the first, second, and third power supply units 1, 2, and 3 and the additional function unit 4 are connected in a single line in this order. The DC output bus lines (Vo +) and (Vo-) of the first, second, and third power supply units 1, 2, and 3 and the additional function unit 4 are united in this order. The current balance signal bus lines (CB) of the first, second, and third power supply units 1, 2, and 3 and the additional function unit 4 are integrated in this order.

The AC input terminals 5A and 5B of the first power supply unit 1 are connected to an external commercial AC power supply 37, and the DC output terminals 6A and 6B of the first power supply unit 1 are connected to a load 38. I have. The interface connection terminal 36 is connected to an external device (not shown).

Next, the operation of the power supply device configured as described above will be described.

The AC input terminal 5 of the first power supply unit 1
A and 5B are supplied to the second and third power supply units 2 and 3, respectively. As a result, the DC converted by the power supply circuit 9 of each of the power supply units 1, 2, and 3 becomes DC. Output can be performed individually from each of the output terminals 6A and 6B, and the load 38 can be driven.

The AC power input from the AC input terminals 5A and 5B of the first power supply unit 1 is supplied to the additional function unit 4 through the second and third power supply units 2 and 3, so that the additional power unit 4 The DC converted by the function unit 4 is output from the DC output terminals 31A and 32B, and the DC converted by the power supply circuit 9 is supplied to the additional function unit through the DC output bus lines (Vo +) and (Vo-). 4 from the DC output terminals 31A and 32B. Further, a control signal can be output to an external device connected to the interface connection terminal 36 of the additional function unit 4.

The current balance signal bus line (CB) is used as control means for equalizing the output current of each power supply unit when a plurality of power supply units are connected in parallel. Here, since the output current of the current balance signal bus line (CB) is detected by the resistor 14, the voltage is output at a voltage proportional to the output current. Therefore, by using the signal of this current balance signal bus line (CB), it can be used as output current, that is, information on the load state.

In the first embodiment of the power supply device according to the present invention, the first, second, and third power supply units 1,
2, 3 and the additional function unit 4 are connected in parallel to the din rail in this order, but in the power supply device according to the present invention, the additional function unit 4 is connected to the first power supply unit 1 by a connector. You may make it.

In the first embodiment of the power supply device according to the present invention, an external commercial AC power supply 37 is connected to the AC input terminals 5A and 5B of the first power supply unit 1.
Although the load 38 is connected to the DC output terminals 6A and 6B of the first power supply unit 1, the external commercial AC power supply 37 and the load 38 may be connected to any power supply unit.

According to the power supply device according to the first embodiment of the present invention, the first, second, and third power supply units 1,
Bus lines for connecting the second and third buses, that is, the AC input bus lines (Vin +) and (Vin-), the DC output bus lines (Vo +) and (Vo), and the current balance signal bus lines (CB) are connected by connectors. By constructing a module power supply and adding an additional function unit to the module power supply by connecting a connector, a power supply device having additional functions and having reduced wiring and large noise immunity can be realized.

(Embodiment 2) FIG. 3 shows a power supply apparatus according to Embodiment 2 of the present invention.

In FIG. 3, reference numeral 41 denotes a first power supply unit, 42 denotes a second power supply unit, 43 denotes a third power supply unit, and 44 denotes an additional function unit. The first power supply unit 41 and the second power supply unit 42, and the second power supply unit 42 and the third power supply unit 43 are respectively connected by connector connecting means, and these constitute a module power supply. ing.

The first, second, and third power supply units 41, 42, and 43 include a power supply circuit 9-1, AC input terminals 5A and 5B, DC output terminals 6A and 6B, and an AC input bus. Lines (Vin +) and (Vin-) and DC output bus lines (Vo +) and (Vo-) are arranged.

The AC input terminals 5A and 5B are provided at the upper part of the front panel and guide the external commercial AC of 100 to 240 VAC to the power supply circuit 9-1. The AC input bus lines (Vin +) and (Vin-) Connected to The DC output terminals 6A and 6B are provided at the lower part of the front panel and output 24 VDC.
The negative side is two, and one positive side and one negative side are paired to form two pairs of DC output terminals. The DC output terminal 5A is connected to the DC output bus line (Vo +), and the DC output terminal 5B is connected to the DC output bus line (Vo-).

The power supply circuit 9-1 has AC input terminals 5A, 5A
Stabilized AC input from outside via B2
Convert to 4VDC output voltage and DC output terminals 6A, 6B
Output to the outside via

The power supply circuit 9-1 is a switching power supply circuit, and has the same configuration as that of the power supply circuit 9 in the above-described power supply device according to Embodiment 1 of the present invention in which the parallel operation control means is not disclosed. Then, the power supply circuit 9-
The input side of 1 is an AC input bus line (Vin +), (Vi
n-), and the output side of the power supply circuit 9-1 is connected to the DC output bus lines (Vo +) and (Vo-).

First, second and third power supply units 41 and 4
The AC input connectors 18A, 18B, the DC input connectors 19A,
9B, and AC output side connectors 21A, 21B and DC output side connectors 22A, 22B are respectively arranged on the other side panel side. The AC input side connectors 18A and 18B and the AC output side connectors 21A and 21B are connected to AC input bus lines (Vin +) and (Vin-), and the DC input side connectors 19A and 19B and the DC output side connector 22 are connected.
A and 22B are DC output bus lines (Vo +), (Vo +).
Connected to-).

The additional function unit 44 includes an AC input terminal 4
6A and 46B, a conversion circuit 48, and AC output side connectors 47A and 47B. The conversion circuit 48 is, for example, an inrush prevention circuit. The conversion circuit 48 is provided with AC input terminals 48a and 48b and AC output terminals 48c and 48d. The AC input terminals 48a and 48b are connected to AC input terminals 47A and 47B, and the AC output terminals 48c and 48d are connected to AC output connectors 47A and 47B.

The additional function unit 44 and the first, second, and third
Are mounted on din rails (not shown) and are connected in parallel in this order.

That is, the first, second, and third power supply units 41, 42, and 43 are arranged on the right side of the additional function unit 44 in this order, and the AC output side connector 47A of the additional function unit 44 is provided. , 47B are connected to the AC input side connectors 21A, 21B of the first power supply unit 41.

The AC output side connectors 21A and 21B of the first power supply unit 41 and the DC output side connector 22
A and 22B are AC input connectors 18A and 18B, DC input connectors 19A and 1B of the second power supply unit 42, respectively.
9B. The AC output side connectors 21A and 21B and the DC output side connectors 22A and 22B of the second power supply unit 42 are connected to the third power supply unit 43.
Are connected to the AC input side connectors 18A and 18B and the DC input side connectors 19A and 19B, respectively.

Therefore, each of the first, second and third power supply units 41, 42 and 43 has its own AC input bus line (V
in +) and (Vin-) are integrated in this order, and the first, second, and third power supply units 4
1, 42 and 43 individual DC output bus lines (Vo
+) And (Vo-) are unified to each other in this order.

The AC input terminals 46A, 46B of the additional function unit 44 are connected to an external commercial AC power supply 37, and the DC output terminals 6A,
A load 38 is connected to 6B.

Therefore, the alternating current input from the AC input terminals 46A and 46B of the additional function unit 44 is converted by the conversion circuit 48 of the additional function unit 44 (for example,
When the conversion circuit 48 is an inrush prevention circuit, the inrush current is suppressed to a predetermined value), and the first, second, and third power supply units 41, 42, and 43 are supplied to the first and second power supply units, respectively. DC can be individually output from each of the DC output terminals 6A, 6A of the second and third power supply units 41, 42, 43, and the DC can be supplied to the load 38.

In the power supply device according to the second embodiment of the present invention, the additional function unit 44 and the first, second,
Although the third power supply units 41, 42, and 43 are connected in parallel to the din rail in this order, in the power supply device according to the present invention, the additional function unit 4 is connected to the third power supply unit 43. May be connected to the connector.

In the first embodiment of the power supply device according to the present invention, the load 38 is connected to the DC output terminals 6A and 6B of the first power supply unit 41.
May be connected to any power supply unit.

According to the power supply device according to the second embodiment of the present invention described above, the first, second, and third power supply units 41,
The bus lines for connecting 42 and 43, that is, the AC input bus lines (Vin +) and (Vin-), and the DC output bus lines (Vo +) and (Vo) are connected by connectors to form a module power supply. By adding the additional function unit 44 to the module power supply by connecting the connector, a power supply device having additional functions and having reduced wiring and large noise immunity can be realized.

In particular, after inputting an external AC power supply and performing some conversion, the AC input bus lines (Vin +), (V
Using in-), an alternating current can be supplied to the first, second, and third power supply units 41, 42, and 43.

(Embodiment 3) FIG. 4 shows a power supply device according to Embodiment 3 of the present invention.

In FIG. 4, reference numeral 51 denotes a first power supply unit, 52 denotes a second power supply unit, 53 denotes a third power supply unit, and 54 denotes an additional function unit. The first power supply unit 51 and the second power supply unit 52, and the second power supply unit 52 and the third power supply unit 53 are connected to each other by connector connecting means, and these constitute a module power supply. ing.

The first, second, and third power supply units 51, 52, and 53 have a power supply circuit 9-1, AC input terminals 5A and 5B, DC output terminals 6A and 6B, and an AC input bus. Lines (Vin +) and (Vin-) and DC output bus lines (Vo +) and (Vo-) are arranged.

The AC input terminals 5A and 5B are provided at the upper part of the front panel and guide the external commercial AC of 100 to 240 VAC to the power supply circuit 9-1. The AC input bus lines (Vin +) and (Vin-) Connected to The DC output terminals 6A and 6B are provided at the lower part of the front panel and output 24 VDC.
The negative side is two, and one positive side and one negative side are paired to form two pairs of DC output terminals. The DC output terminal 5A is connected to the DC output bus line (Vo +), and the DC output terminal 5B is connected to the DC output bus line (Vo-).

The power supply circuit 9-1 includes AC input terminals 5A, 5A,
Stabilized AC input from outside via B2
Convert to 4VDC output voltage and DC output terminals 6A, 6B
Output to the outside via

The first, second and third power supply units 51 and 5
2 and 53 have AC input side connectors 18A and 18B, DC input side connectors 19A and 1
9B, and AC output side connectors 21A, 21B and DC output side connectors 22A, 22B are respectively arranged on the other side panel side. The AC input side connectors 18A and 18B and the AC output side connectors 21A and 21B are connected to AC input bus lines (Vin +) and (Vin-), and the DC input side connectors 19A and 19B and the DC output side connector 22 are connected.
A and 22B are DC output bus lines (Vo +), (Vo +).
Connected to-).

The additional function unit 54 has DC input side connectors 55A and 55B, a conversion circuit 56, and DC output terminals 57A and 57B.
For example, it is a step-down circuit. And this conversion circuit 5
6 has DC input terminal portions 56a and 56b and DC output terminal portions 56c and 56d. The DC input terminals 56a and 56b are connected to the DC input connectors 55A and 55B.
The DC output terminals 56c and 56d are connected to DC output terminals 57A and 57B.

First, second and third power supply units 51 and 5
2, 53 and the additional function unit 54 are mounted on a din rail (not shown), and are connected in parallel in this order.

That is, the first power supply unit 51 and the second
Power supply unit 52 and second power supply unit 53
Power supply unit 54 is the AC output side connector 21
A, 21B are connected to the AC input side connectors 18A, 18B, and their DC output side connectors 22A, 22B are connected to the DC input side connectors 19A, 19B and are connected in this order.

Therefore, the individual AC input bus lines (V) of the first, second, and third power supply units 52, 53, 54
in +), (Vin-) and DC output bus line (Vo-
+) And (Vo-) are linked in this order and are unified.

The third power supply unit 53 and the additional function unit 54 are connected to the DC output side connectors 22A and 22A.
B is connected to the DC input side connectors 55A and 55B and connected to each other.

The AC input terminals 5A and 5B of the first power supply unit 51 are connected to an external commercial AC power supply 37, and the DC output terminals 57A and 57A of the additional function unit 54.
A load 38 is connected to B.

Therefore, the AC power supplied from the AC input terminals 5A and 5B of the first power supply unit 51 is supplied to the second and third power supply units 52 and 53, respectively. DC can be individually output from each of the DC output terminals 6A and 6B of the power supply units 52 and 53.

The AC input from the AC input terminals 5A and 5B of the first power supply unit 51 is converted into DC through the power supply circuit 9-1 of each of the power supply units 51, 52 and 53, and then converted to DC. Are supplied to the load 39 in the conversion circuit 56 of the additional function unit 54, for example.

In the third embodiment of the power supply device according to the present invention, the first, second, and third power supply units 5
1, 52, 53 and the additional function unit 54 are connected in parallel to the din rail in this order, but in the power supply device according to the present invention, the additional function unit 54 is connected to the first power supply unit 51. A connector connection may be used.

In the third embodiment of the power supply device according to the present invention, the external commercial AC power supply 37 is connected to the AC input terminals 5A and 5B of the first power supply unit 1. May be connected to any power supply unit.

According to the power supply device according to the third embodiment of the present invention described above, the first, second, and third power supply units 51,
A bus line for connecting 52, 53, that is, an AC input bus line (Vin +), (Vin-), a DC output bus line (Vo +), (Vo-) is connected to each connector to form a module power supply. By adding the additional function unit 54 to this module power supply by connecting it to a connector, a power supply device having additional functions with reduced wiring and large noise immunity can be realized.

In particular, the first, second and third power supply units 5
1, 52, and 53 are connected to a DC output bus line (Vo).
(+) And (Vo-), the data may be input to the additional function unit 54, subjected to some conversion, and then supplied to the load 38.

(Embodiment 4) FIG. 5 shows a power supply device according to Embodiment 4 of the present invention.

In FIG. 5, reference numeral 61 denotes a first power supply unit, 62 denotes a second power supply unit, and 63 denotes an additional function unit. Then, the first and second power supply units 61, 6
2 includes a power supply circuit 9-1 and AC input terminals 5A, 5B
, DC output terminals 6A and 6B, AC input bus lines (Vin +) and (Vin-), and DC output bus lines (Vo +) and (Vo-).

The AC input terminals 5A and 5B are provided on the upper part of the front panel and guide the external commercial AC of 100 to 240 VAC to the power supply circuit 9-1. The AC input bus lines (Vin +) and (Vin-) Connected to The DC output terminals 6A and 6B are provided at the lower part of the front panel and output 24 VDC.
The negative side is two, and one positive side and one negative side are paired to form two pairs of DC output terminals. The DC output terminal 6A is connected to the DC output bus line (Vo +), and the DC output terminal 6B is connected to the DC output bus line (Vo-).

The power supply circuit 9-1 has the same configuration as the power supply circuit according to the second embodiment of the power supply device according to the present invention, and therefore the description thereof is omitted.

The input side of the power supply circuit 9-1 is connected to the AC input bus lines (Vin +) and (Vin-), and the output side of the power supply circuit 9-1 is connected to the DC output bus line (Vo +). , (Vo-).

The first and second power supply units 62 and 6
2 has an AC input side connector 18 on one side panel side.
A, 18B and DC input side connectors 19A, 19B are arranged respectively. On the other side panel side, AC output side connectors 21A, 21B and DC output side connector 2 are arranged.
2A and 22B are respectively arranged. The AC input side connectors 18A and 18B and the AC output side connector 2
1A and 21B are AC input bus lines (Vin +), (V
in-), the DC input side connector 19A,
19B DC output side connectors 22A and 22B are connected to DC output bus lines (Vo +) and (Vo-).

The additional function unit 63 includes AC input side connectors 64A and 64B and AC output side connectors 65A and 65B.
5B, a conversion circuit 67, a DC input side connector 68A,
68B and DC output side connectors 69A and 69B. The conversion circuit 67 includes an AC input terminal 67a,
67b and AC output terminal portions 67c and 67d are provided. The AC input terminals 67a and 67b are connected to the AC input connectors 64A and 64B, and the AC output terminals 67c and 67d are connected to the AC output connectors 65A and 65D.
Connected to B. Also, the DC input side connector 68A,
68B is connected to DC output side connectors 69A and 69B via DC output bus lines (Vo +) and (Vo-).

The first power supply unit 61, the additional function unit 63, and the second power supply unit 62 are mounted on a din rail (not shown), and are connected in parallel in this order.

That is, the first power supply unit 61 and the additional function unit 63 are connected to the AC output side connectors 21A and 21B and the DC output side connectors 22A and 22B of the first power supply unit 61 by the AC input side of the additional function unit 63. Connectors 64A, 64B and a DC input side connector 68A,
68B, and the additional function unit 63 and the second power supply unit 62 are connected to the AC output side connectors 65A and 65B and the DC output side connectors 69A and 69B of the additional function unit 63 by the second power supply. Unit 62
Are connected to the AC input side connectors 18A and 18B and the DC input side connectors 19A and 19B.

Therefore, the DC output bus lines (Vo +) and (Vo-) of the first power supply unit 61, the additional function unit 63, and the second power supply unit 62 are integrated in this order. ing. The AC input terminals 5A and 5B of the first power supply unit 61 are connected to an external commercial AC power supply 37.

Therefore, the alternating current input from the AC input terminals 5A and 5B of the first power supply unit 61 is supplied to the additional function unit 63, and converted by the conversion circuit 67 of the additional function unit 63, for example, a step-down conversion. After that, the power is supplied to the second power supply unit 62.

The DC output to the DC output bus lines (Vo +) and (Vo-) of the first power supply unit 61 is supplied to the second power supply unit 62 via the additional function unit 63.

According to the fourth embodiment of the power supply device according to the present invention, the AC input from the AC input terminals 5A and 5B of the first power supply unit 61 is supplied to the additional function unit 63.
The conversion circuit 6 of the additional function unit 63
After some conversion is performed by step 7, the converted power can be supplied to the second power supply unit 61.

(Embodiment 5) FIG. 6 shows a power supply device according to Embodiment 5 of the present invention.

In FIG. 6, reference numeral 71 denotes a first power supply unit, 72 denotes a second power supply unit, and 73 denotes an additional function unit.

The additional function unit 73 according to the fifth embodiment of the power supply device according to the present invention is the same as the additional function unit 63 according to the fourth embodiment of the power supply device according to the present invention described above, except that the DC input side connectors 68A, 68B
, DC output bus lines (Vo +) and (Vo-), and DC output side connectors 69A and 69B, and a first power supply unit according to Embodiment 5 of the power supply device according to the present invention. 71 is the first power supply unit 61 in Embodiment 4 of the power supply device according to the present invention described above.
Embodiment 5 of the power supply device according to the present invention
Has the same configuration as the second power supply unit 62 in the fourth embodiment of the power supply device according to the present invention described above.

Therefore, the other configuration of the power supply device according to the fifth embodiment of the present invention is the same as that of the above-described fourth embodiment of the power supply device according to the present invention. Omitted.

The first power supply unit 71, the additional function unit 73, and the second power supply unit 72 are mounted on a din rail (not shown), and are connected in parallel in this order.

That is, the first power supply unit 71 and the additional function unit 73 are connected to the AC output side connectors 21A, 21A of the first power supply unit 71 by the additional function unit 73.
The additional function unit 73 and the second power supply unit 72 are connected to the AC input side connectors 64A and 64B of the additional function unit 73, and the AC output side connectors 65A and 65B of the additional function unit 73 are connected to the second power supply unit. 72 are connected to the AC input side connectors 18A and 18B. Also, the AC input terminal 5 of the first power supply unit 71
A and 5B are connected to an external commercial AC power supply 37.

Therefore, the alternating current input from the AC input terminals 5A and 5B of the first power supply unit 71 is supplied to the additional function unit 73, and the additional function unit 73
After some conversion is performed by the conversion circuit 67 of
The converted AC is supplied to the power supply unit 72.

According to the fifth embodiment of the power supply device according to the present invention described above, the AC input from the AC input terminals 5A and 5B of the first power supply unit 71 is applied to the additional function unit 73.
The conversion circuit 6 of the additional function unit 73
After some conversion is performed by 7, the converted AC can be supplied to the second power supply unit 72.

(Embodiment 6) FIG. 7 shows a power supply device according to Embodiment 6 of the present invention.

In FIG. 7, reference numeral 81 denotes a first power supply unit, 82 denotes a second power supply unit, and 83 denotes an additional function unit.

The first power supply unit 81 and the second power supply unit 82 in the power supply device according to the sixth embodiment of the present invention are the same as the first power supply unit 81 in the power supply device according to the fourth embodiment of the present invention. Since the power supply unit 61 and the second power supply unit 62 have the same configuration, the same reference numerals are given and the description is omitted.

Further, the additional function unit 83 includes AC input side connectors 84A and 84B and AC output side connector 85.
A, 85B, conversion circuit 86, DC input side connector 8
7A and 87B, and DC output side connectors 88A and 88B.
6a and 86b and DC output terminals 86c and 86d are provided.

The DC input terminals 86a and 86b are connected to the DC input connectors 84A and 84B, and the DC output terminals 86c and 86d are connected to the DC output connector 88.
A, 88B. The AC input side connectors 84A and 84B are AC input bus lines (Vin +),
(Vin-) through the AC output side connectors 85A, 85
Connected to B.

The first power supply unit 81, the additional function unit 83, and the second power supply unit 82 are mounted on a din rail (not shown) and are connected in parallel in this order.

That is, the first power supply unit 81 and the additional function unit 83 are connected to the AC output side connectors 21A and 21B and the DC output side connectors 22A and 22B of the first power supply unit 82 by the AC input side of the additional function unit 83. Connectors 84A, 84B and DC input side connector 87A,
The additional function unit 83 and the second power supply unit 82 are connected to the AC output side connectors 85A and 85B and the DC output side connectors 88A and 88B of the additional function unit 83 by the second power supply. Unit 83
Are connected to the AC input side connectors 18A and 18B and the DC input side connectors 19A and 19B.

Therefore, the individual AC input bus lines (Vin +) and (Vin-) of the first power supply unit 81, the additional function unit 63, and the second power supply unit 82 are:
It is unified following this order. An external commercial AC power supply 37 is connected to the AC input terminals 5A and 5B of the first power supply unit 81.

Therefore, the AC power supplied from the AC input terminals 5A and 5B of the first power supply unit 81 is supplied to the AC input bus line (Vin +) of the additional function unit 83,
The power is supplied to the second power supply unit 82 via (Vin−).

The DC output to the DC output bus lines (Vo +) and (Vo−) of the first power supply unit 61 is supplied to the additional function unit 83, and is converted by the conversion circuit 86 of the additional function unit 83 to some kind. After the conversion, the converted DC is supplied to the second power supply unit 82.

According to the sixth embodiment of the power supply device according to the present invention described above, the DC output to the DC output bus lines (Vo +) and (Vo-) of the first power supply unit 81 is supplied to the additional function unit 83. After being supplied and undergoing some conversion by the conversion circuit 86 of the additional function unit 83,
The converted DC can be supplied to the second power supply unit 82.

(Embodiment 7) FIG. 8 shows a power supply device according to Embodiment 7 of the present invention.

In FIG. 8, reference numeral 91 denotes a first power supply unit, 92 denotes a second power supply unit, 93 denotes a third power supply unit, and 94 denotes an output abnormality detection unit as an additional function unit. Then, the first power supply unit 91 and the second
Power supply unit 92, second power supply unit 93 and third power supply unit
The power supply units 93 are connected to each other by connector connection means, and constitute a module power supply.

The first power supply unit 91, the second power supply unit 92, and the third power supply unit 93 in the power supply device according to the seventh embodiment of the present invention are different from the power supply device according to the present invention. The first power supply unit 51, the second power supply unit 52, and the third power supply unit 53 in the third embodiment have the same configuration.
The connector connection structure between the first and second power supply units 92 and the connector connection structure between the second power supply unit 92 and the third power supply unit 93 are the same as those in the first embodiment of the power supply device according to the present invention. Since the connector connection structure between the second power supply unit 52 and the third power supply unit 53 and the connector connection structure between the second power supply unit 52 and the third power supply unit 53 have the same configuration, the same reference numerals will be used. Is omitted.

The output abnormality detection unit 94 includes DC input connectors 95A and 95B and first, second and third DC output terminals 96A, 96B, 97A, 97B, 98A and 98.
B, alarm output terminals 99A and 99B, first, second, and third disconnection circuits 100, 101, and 102, and an output abnormality detection circuit 103.

The first, second and third cutting circuits 10
0, 101 and 102 are input terminal units 100a and 100b
And output terminal portions 100c and 100d.

The output abnormality detection circuit 103 includes a first output abnormality detection unit 103A and a second output abnormality detection unit 10A.
3B, a third output abnormality detection unit 103C, a first output voltage detection unit 104 that detects an output voltage between the first DC output terminals 96A and 96B, and a second DC output terminal 97A.
Second output voltage detecting unit 1 for detecting an output voltage between 97B
05 and a third output voltage detector 106 for detecting an output voltage between the third DC output terminals 98A and 98B.

The DC input connector 95A is connected to the respective input terminals 100a of the first, second, and third disconnection circuits 100, 101, and 102, and the DC input connector 95B is connected to the first and second disconnection circuits. 2. Third cutting circuit 10
0, 101 and 102 are connected to respective input terminal units 100b.

The output terminals 100c and 100d of the first disconnection circuit 100 are connected to the first DC output terminals 96A and 96A.
6B, the output terminals 100c and 100d of the second disconnection circuit 101 are connected to the second DC output terminals 97A and 97A.
7B, and the output terminals 100c and 100d of the third disconnection circuit 102 are connected to the third DC output terminals 98A and 98A.
8B.

The first, second, and third output abnormality detection units 103A, 103B, and 103C of the output abnormality detection circuit 103 are constituted by transistors Tr1, Tr2, and Tr3, and the emitters of the transistors Tr1, Tr2, and Tr3 are connected to each other. The bases of the transistors Tr1, Tr2, Tr3 are connected to the DC input side connector 95A, and the first, second, and third output voltage detectors 104, 105, 10
6 is connected. In addition, transistors Tr1, Tr
2. The collector side of Tr3 is connected to the DC input connector 95B through the light emitting diode 107a of the photocoupler 107. The output side of the photocoupler 107 is connected to alarm output terminals 99A and 99B.

The first, second, and third power supply units 91, 92, and 93 and the output abnormality detection unit 94 are mounted on a din rail (not shown) and are connected in parallel in this order. .

That is, the first power supply unit 91 and the second
Power unit 92, the second power unit 92 and the third
Power supply unit 93 is the AC output side connector 21
A, 21B are connected to the AC input side connectors 18A, 18B, and their DC output side connectors 22A, 22B are connected to the DC input side connectors 19A, 19B and are connected in this order.

Therefore, the individual AC input bus lines (V) of the first, second, and third power supply units 91, 92, 93
in +), (Vin-) and DC output bus line (Vo-
+) And (Vo-) are linked in this order and are unified.

Then, the third power supply unit 93 and the output abnormality detection unit 94 are connected to the DC output side connector 22A,
22B is connected to the DC input side connectors 95A and 95B.

Further, the AC input terminals 5A and 5B of the first power supply unit 91 are connected to the external commercial AC power supply 37, and the alarm output terminal 99 of the output abnormality detection unit 94.
A and 99B are connected to alarm means (not shown) such as a buzzer.

Next, the operation of the power supply device configured as described above will be described.

The AC input terminal 5 of the first power supply unit 91
A and 5B are supplied to the second and third power supply units 92 and 93, respectively. As a result, not only the DC output terminals 6A and 6B of the first power supply unit 91 but also
DC output terminals 6 of the second and third power supply units 92 and 93
DC can be individually output from each of A and 6B.

The AC input from the AC input terminals 5A and 5B of the first power supply unit 91 is converted to DC through the power supply circuit 9-1 of each of the power supply units 91, 92 and 93, and then converted to DC. The first, second, and third DC output terminals 96A, 96B, 97A, 97B, 98A, 98 of the output abnormality detection unit 94
DC is output to B.

The first, second, and third DC output terminals 96A,
For example, a load (not shown) is connected to each of the 96B, 97A, 97B, 98A, and 98B. For example, when an output abnormality occurs in the load of the first DC output terminals 96A and 96B. Generates a detection signal (voltage) in the first output voltage detection unit 104, and the detection signal (voltage) is applied to the base side of the transistor Tr1 of the first output abnormality detection unit 103A.

To this end, the light emitting diode 107a of the photocoupler 107 is energized and the photocoupler 10
The alarm signal is sent from the output side of 7 to the alarm output terminals 99A and 99B, and the alarm means issues an alarm. In addition, an abnormal state is displayed by using a display means instead of the alarm means to secure a safe state.

According to the power supply device according to the seventh embodiment of the present invention, the first, second, and third power supply units 91,
Bus lines for connecting the terminals 92 and 93, that is, AC input bus lines (Vin +) and (Vin-), and DC output bus lines (Vo +) and (Vo-) are connected by connectors to form a module power supply. By adding the output abnormality detection unit 94 to this module power supply by connecting the connector, a power supply device with reduced output wiring, large noise immunity, and an output abnormality detection function can be realized.

When it is detected that at least one output is abnormal, a safe state can be ensured in order to perform signal output or display, and an arbitrary state can be set for each output. Output abnormal value can be set.

In the power supply device according to the seventh embodiment of the present invention, the first, second, and third power supply units 9 are used.
1, 92, 93 and the output abnormality detection unit 94 are connected in parallel to the din rail in this order. However, in the power supply device according to the present invention, the output abnormality detection unit 94 is connected to the first power supply unit. The connector 91 may be connected to the connector.

In the power supply device according to the seventh embodiment of the present invention, the external commercial AC power supply 37 is connected to the AC input terminals 5A and 5B of the first power supply unit 1. May be connected to any power supply unit.

(Eighth Embodiment) FIG. 9 shows an eighth embodiment of the power supply device according to the present invention.

Embodiment 8 of the power supply device according to the present invention is as follows.
The first, second, and third power supply units 91, 92, and 93 according to the seventh embodiment of the power supply device according to the present invention each include an output voltage detection unit and an output abnormality detection unit. An alarm output unit for outputting (output abnormality) is added.

In this case, the first power supply unit 91 is provided with a signal output side connector 108, and the second power supply unit 92 is provided with a signal input side connector 109A and a signal output side connector 109B. The third power supply unit 93 is provided with a signal input side connector 110A and a signal output side connector 110B.

The output side (+ side) of the power supply circuit 9-1 of each of the first, second, and third power supply units 91, 92, and 93 is connected to a DC output bus line (Vo +) through a diode D. . Then, the first, second, and third output voltage detection units 112A, 112B, and 112B are provided on the output side of the power supply circuit 9-1 of the first, second, and third power supply units 91, 92, and 93, respectively.
112C and first, second, and third output abnormality detection units 113
A, 113B, and 113C. Then, the first, second, and third output abnormality detection units 113A, 113B,
113C is composed of transistors Tr1, Tr2 and Tr3.

In the first power supply unit 91, the output side of the first output voltage detecting section 112A is connected to the transistor Tr1.
The emitter of the transistor Tr1 is connected to the cathode of the diode D, and the collector of the transistor Tr1 is connected to the signal output side connector 1.
08.

Also, in the second power supply unit 92,
The output side of the second output voltage detection unit 112B is connected to the base side of the transistor Tr2.
Is connected to the cathode side of the diode D, and the collector side of the transistor Tr2 is connected to the signal input side connector 109A and the signal output side connector 109B.

In the third power supply unit 93,
The output side of the third output voltage detection unit 112C is connected to the base side of the transistor Tr3.
Are connected to the cathode side of the diode D, and the collector side of the transistor Tr32 is connected to the signal input side connector 110A and the signal output side connector 110B.

The alarm output unit 114 includes the DC input side connectors 115A and 115B and the alarm output terminal 1
16A, 116B, a signal input side connector 117A,
The light emitting diode 118a of the photocoupler 118 has an anode connected to the signal input connector 117A, and a cathode connected to the DC input connector 115B. is there. The output side of the photo coupler 107 is connected to the alarm output terminals 116A and 116B.

The first, second and third power supply units 91, 92 and 93 and the alarm output unit 114
They are mounted on din rails (not shown) and connected in parallel in this order.

That is, the first power supply unit 91 and the second power
Power unit 92, the second power unit 92 and the third
Power supply unit 93 is the AC output side connector 21
A, 21B are connected to the AC input side connectors 18A, 18B, and their DC output side connectors 22A, 22B are connected to the DC input side connectors 19A, 19B and are connected in this order.

Therefore, each of the first, second and third power supply units 91, 92 and 93 has its own AC input bus line (V
in +), (Vin-) and DC output bus line (Vo-
+) And (Vo-) are linked in this order and are unified.

The signal output side connector 108 of the first power supply unit 91 is connected to the signal input side connector 109A of the second power supply unit 92, and the signal output side connector 109B of the second power supply unit 92 is connected to the signal output side connector 109B. The signal input side connector 110A of the third power supply unit 93 is connected.

Therefore, the individual transistors Tr1, T of the first, second, and third power supply units 91, 92, 93
The collector sides of r2 and Tr3 are connected in this order and unified as a second signal bus line.

The third power supply unit 93 and the alarm output unit 114 are connected to the DC output side connector 22.
A, 22B are connected to the DC input side connectors 115A, 115B and are connected to each other.
The signal input connector 117A of the alarm output unit 114 is connected to the signal output connector 110B.

Further, the AC input terminals 5A and 5B of the first power supply unit 91 are connected to the external commercial AC power supply 37, and the alarm output terminal 1 of the alarm output unit 114
Alarm means or display means (both not shown) such as a buzzer are connected to 16A and 116B.

Next, the operation of the power supply device configured as described above will be described.

The AC input terminal 5 of the first power supply unit 91
A and 5B are supplied to the second and third power supply units 92 and 93, respectively. As a result, not only the DC output terminals 6A and 6B of the first power supply unit 91 but also
DC output terminals 6 of the second and third power supply units 92 and 93
DC can be individually output from each of A and 6B.

Then, for example, the first power supply unit 91
When an output abnormality occurs, a detection signal (voltage) is generated in the first output voltage detection unit 112A, and the detection signal (voltage) is transmitted to the base side of the transistor Tr1 of the first output abnormality detection unit 113A. Applied.

To this end, the light emitting diode 118a of the photocoupler 118 is energized and the photocoupler 11
8, an alarm signal is sent to the alarm output terminals 116A and 116B, and the alarm means issues an alarm. Also,
By using a display instead of the alarm, an abnormal state is displayed and a safe state is ensured.

In the eighth embodiment of the power supply device according to the present invention, the alarm output unit 114 and the third, second, and first power supply units 93, 92, and 91 are connected in parallel to the din rail in this order. I tried to connect,
In the power supply device according to the present invention, the alarm output unit 114 may be connected to the first power supply unit 91 with a connector.

In the eighth embodiment of the power supply device according to the present invention, the external commercial AC power supply 37 is connected to the AC input terminals 5A and 5B of the first power supply unit 1. May be connected to any power supply unit.

According to the power supply device according to the eighth embodiment of the present invention, the first, second, and third power supply units 91, 91
When it is detected that at least one of the outputs 92 and 93 is abnormal, a safe state can be ensured for performing signal output or display, and an arbitrary output is provided for each output. Outliers can be set.

(Embodiment 9) FIG. 11 shows a power supply device according to Embodiment 9 of the present invention.

In general, in the power supply device 120, as shown in FIG. 10, regardless of the output capacity, a rush current prevention circuit (rush protection circuit) for suppressing the rush current per unit to 25 A / 50 A (100 V / 200 V). ) 120A. For this reason, when N power supply devices 120 are connected, an inrush current of N times flows.

Therefore, when a plurality of power supply devices 120 are used, even if the required power capacity is small, it is necessary to use equipment having a large surge current resistance. This has the same problem even in the case of a power supply unit that realizes an arbitrary capacity by combining a plurality of power supply units having a relatively small capacity, despite the fact that the power supply unit is a single power supply unit.

Embodiment 9 of the power supply device according to the present invention is as follows.
Focusing on such a conventional problem, a circuit for preventing an inrush current in the entire power supply system is added separately from a built-in protection circuit for each power supply (power supply unit). , To solve the above problems.

Embodiment 9 of the power supply device according to the present invention is as follows.
As shown in FIG. 11, a first power supply unit 121, a second power supply unit 122, and a third power supply unit 123
And a collision prevention unit 124 as an additional function unit. Then, the first power supply unit 121 and the second
The second power supply unit 122, the second power supply unit 122, and the third power supply unit 123 are connected to each other by connector connection means to constitute a module power supply.

The first power supply unit 121, the second power supply unit 122, and the third power supply unit 123 in the ninth embodiment of the power supply according to the present invention are the same as those of the power supply according to the present invention. In the first power supply unit 41, the second power supply unit 42, and the third power supply unit 43 in the second embodiment, a built-in protection circuit 125 is disposed on the input side of the power supply circuit 9-1. First
Connection structure between the power supply unit 121 and the second power supply unit 122, and the second power supply unit 122 and the third power supply unit 122.
The connector connection structure between the first power supply unit 41 and the second power supply unit 42 and the second power supply unit 42 in the second embodiment of the power supply device according to the present invention described above. Since it has the same configuration as the connector connection structure between the power supply unit and the third power supply unit 43, the same reference numerals are given and the description is omitted.

The anti-collision unit 124 is connected to the AC input terminal 12.
5A, 125B, output terminals 126A, 126B,
AC output side connectors 127A and 127B,
28.

The protection circuit 128 includes an input terminal 128a,
128b and output terminal sections 128c, 128d, 128e,
128f. The input terminal portions 128a and 128b of the protection circuit 128 have AC input terminals 125A,
125B, and output terminal sections 128c, 128
d is connected to the AC output side connectors 127A and 127B, and the output terminal portions 128e and 128f are
6A, 126B. Then, the collision prevention unit 124 and the first, second, and third power supply units 121, 1
Reference numerals 22 and 123 are mounted on din rails (not shown), and are connected in parallel in this order.

That is, the first, second, and third power supply units 121, 122, 12
3 are arranged in this order.
AC output side connectors 127A, 127B of the first power supply unit 121
Connected to

Therefore, the collision prevention unit 124 and the first, second, and third power supply units 121, 122, 123
Individual AC input bus lines (Vin +), (Vin +
−) Are unified in this order, and the first,
The individual DC output bus lines (Vo +) and (Vo-) of the second and third power supply units 121, 122, and 123 are integrated in this order.

The AC input terminals 125A and 125B of the collision prevention unit 124 are connected to an external commercial AC power supply 37, and the DC output terminal 6 of the third power supply unit 123 is connected.
A load 6 is connected to A and 6B.

Next, the operation of the power supply device configured as described above will be described.

The AC input terminal 125 of the collision prevention unit 124
A, 125B, the AC power supplied from the
8, the first, second and third power supply units 121,
As a result of being supplied to each of the power supply units 122 and 123, direct current can be individually output from each of the DC output terminals 6A and 6A of the first, second and third power supply units 121, 122 and 123, and A direct current can be supplied.

In this case, when the first, second, and third power supply units 121, 122, and 123 are used in combination, the first, second, and third power supply units are supplied from a commercial AC power supply 37 via a newly added protection unit 124. Second and third power supply units 1
21, 122, and 123, the same inrush current value is realized even when the first, second, and third power supply units 121, 122, and 123 are used, as when one power supply unit is used. it can. Therefore, equipment with a small surge current tolerance can be used.

The impedance required for the collision prevention unit 124 will be described with reference to FIG. 12 (connecting four power supply units).

The inrush current is 25 in the entire power supply system.
If it is less than A, the required impedance is 5.7Ω
As described above (= 2 × 100 V / 25 A), it is set to 10Ω. It is assumed that the impedance of the built-in protection circuit of each power supply unit is also 10Ω (= R2 = R3 = R4 = R5). At this time, the impedance required for the collision prevention unit is R1 = 10Ω−10Ω / 4 = 7.5Ω.

In the ninth embodiment of the power supply device according to the present invention, the collision prevention unit 124 and the first, second,
Although the third power supply units 121, 122, and 123 are connected in parallel to the din rail in this order, in the power supply device according to the present invention, the collision prevention unit 124 is connected to the third power supply unit.
May be connected to the power supply unit 123.

According to the ninth embodiment of the power supply device according to the present invention described above, the first, second, and third power supply units 12
1, 122, and 123, that is, AC input bus lines (Vin +) and (Vin +).
−) And the DC output bus lines (Vo +) and (Vo) are connected by connectors, respectively, to constitute a module power supply, and the anti-shock unit 124 is connected to this module by adding a connector, so that wiring is reduced and noise immunity is large. Thus, a power supply device having a function of preventing an inrush current in the entire system can be realized.

In addition to the built-in shunt protection circuit of each power supply unit, a circuit for preventing an inrush current in the entire power supply system is added, so that the first, second and third power supply units 121 and 122 are provided. , 123, the same rush current value as when one power supply unit is used can be realized, and equipment with a small surge current resistance can be used.

The power supply system shown in FIG. 13 has first, second, and third power supplies 121-1, 122-1, 123-.
1 is independent without being connected to a connector, and these first, second, and third power supply devices 121-1, 122-
When the first and second power supply devices 121-1 and 123-1 are used in combination, the first, second, and third power supply devices 121-1 and 123-1 are connected from a commercial AC power supply 37-1 via a newly added anti-collision device 124-1.
22-1 and 123-1.

In this case, the first, second, and third power supply units 1
Even when the power supply devices 21-1, 122-1, and 123-1 are used, the same rush current value as when one power supply device is used can be realized, and equipment with a small surge current withstand capability can be used.

The power supply system shown in FIG. 14 has independent first, second, and third power supply
-1, 122-1, 123-1 and an anti-collision device 129. The anti-collision device 129 has an input terminal portion 129.
a, 129b and output terminal portions 129c, 129d. The input terminal portion 129a is connected to the output terminal portion 129c via a resistor R, and a switch element (semiconductor switch) Q is connected to the resistor R. They are connected in parallel. Also,
The input terminal portion 129b is connected to the output terminal portion 129 via the wiring P.
Connected to d.

Then, the input terminal section 12 of the collision prevention device 129 is
9a and 129b are connected to the commercial AC power supply 37-1, and the output terminal portions 129c and 129d of the anti-shock device 129 are the first, second, and third power supply devices 121-1, 122-1,
123-1 are connected to AC input terminals 130A and 130B, respectively. The first, second, and third power supply devices 1
A signal circuit 131 is derived from the power supply circuit 9-1 of 21-1, 122-1, and 123-1.
The switch element Q of the collision-prevention device 129 is turned on by a control signal from the control device 1. Also, the first, second,
A load 133 is connected to the DC output terminals 132A, 132B of the third power supply devices 121-1, 122-1, 123-1.

Accordingly, the first, second, and third power supply devices 121-1, 122-1, and 12-1 are supplied from the commercial AC power supply 37-1 via the resistance R of the newly added anti-collision device 129.
The rush current is prevented by inputting the signal to the input terminal 23-1. Then, the first, second, and third power supply devices 121-1,
When at least one of the devices 122-1 and 123-1 operates, a control signal from the signal circuit 131 controls the anti-skid device 12.
9 is turned on, and the commercial AC power supply 37 is turned on.
-1 via the switching element Q,
Second and third power supply devices 121-1, 122-1, 123
-1 is input.

The power supply system shown in FIG.
In the power supply system shown in FIG. 4, except for the signal circuit 131, instead of turning on the commercial power supply, the switch element Q is turned on after a time set in advance by the timer circuit (delay circuit) 132, and the commercial AC power supply 37- 1 through the switching element Q, the first, second,
The third power supply devices 121-1, 122-1, and 123-1 are input to the power supply system, and the other components are the same as those of the power supply system shown in FIG. Description is omitted.

(Embodiment 10) FIGS. 16 to 18 show a power supply device according to Embodiment 10 of the present invention.

The power obtained by AC / DC conversion by a switching power supply or the like often supplies power to a plurality of loads (equipment) particularly in the case of a high-capacity power supply device. In this case, when a problem occurs in one load, it is unavoidable to affect the entire load supplied with power from the power supply device.

Therefore, the wiring is branched into a plurality of wires from the output terminal of the power supply so as not to affect the entire plurality of loads supplied from the power supply, and a safety device such as a fuse or a breaker is incorporated in each wiring. Even when a problem occurs in one load when a plurality of loads are supplied from one power supply device, the influence is suppressed only on that load, and the other loads can be operated without any problem.

However, in this case, the increase in the number of wirings, the installation location of a plurality of safety devices, the selection of the safety devices, and the system design are difficult, resulting in an increase in time and cost. Further, when a function having a plurality of protection functions to output an abnormal state is required, it is necessary to construct a complicated system.

Embodiment 10 of the power supply device according to the present invention
When it is necessary to branch the output, it can be easily wired, integrates a plurality of protection functions and a function that can output an abnormal state, can improve safety and maintainability, and can further reduce the size of the entire system Things.

That is, the tenth embodiment of the power supply device according to the present invention has a terminal connected to the output of the module power supply and having a terminal capable of branching the output into a plurality of parts, and detecting an output current flowing through the branched terminal. When a certain set value is reached, the function of disconnecting the load and the module power supply line connected to it, detecting the overvoltage from the module power supply and also disconnecting the module power supply line, and reporting abnormal current and voltage conditions This unit is a unit that integrates the functions that can be performed and the function that can manually release the line disconnection in the abnormal state.

Embodiment 10 of the power supply device according to the present invention
Is a first power supply unit 141 as shown in FIG.
, A second power supply unit 142, a third power supply unit 143, and a branching unit 144 as an additional function unit. Then, the first power supply unit 141 and the second power supply unit 142 and the second power supply unit 142 and the third power supply unit 143 are connected to each other by connector connection means to constitute a module power supply.

The first power supply unit 141, the second power supply unit 142, and the third power supply unit 143 in the power supply device according to the tenth embodiment of the present invention are different from the power supply device according to the present invention. First in Embodiment 3
, A second power supply unit 52, and a third power supply unit 53, and a connector connection structure between the first power supply unit 141 and the second power supply unit 142 and a second power supply unit. The connector connection structure between the second power supply unit 142 and the third power supply unit 143 is the same as the connector connection structure between the first power supply unit 51 and the second power supply unit 52 in the third embodiment of the power supply device according to the present invention. Since the power supply unit 52 has the same configuration as the connector connection structure between the power supply unit 52 and the third power supply unit 53, the same reference numerals are given and the description is omitted.

The branching unit 144 includes DC input side connectors 145A and 145B and first, second,.
N-th DC output terminals 146-1, 146-1 ... 14
6-n, an overvoltage detection circuit 147, a power supply output line branching device 148, first, second,... N-th branching circuits 149-1, 149-2,. It has input terminals 144A and 144B.

The input side of the overvoltage detection circuit 147 is connected to the DC input side connectors 145A and 145B, and the output side of the overvoltage detection circuit 147 is connected to the power supply output line branching device 14.
8 is connected to the input side. The first, second,... N-th branching circuits 149-1, 149-2,.
n are connected, and the first, second,... n-th branching circuits 149-1, 149-2,.
The output side of −n is the corresponding first, second,.
146 of the DC output terminals 146-1, 146-2,.
Connected to -n.

Each of the first, second,..., N-th branching circuits 149-1, 149-2,... 149-n has a power supply output line 150 as a supply line. The power output line 150 has a current value setting means 1
There are provided a current detection circuit 152 having 51, an output line disconnection circuit 153, and a disconnection state reset circuit 154.

As shown in FIG. 18, the current detection circuit 152 includes a current detection / amplification unit 1 composed of a combination of a current detection resistor R provided in a load current return circuit and an operational amplifier 0P.
55, a Zener diode Dz1 for preventing the detection current from flowing to the gate terminal of the thyristor SCR when the voltage exceeds a certain value, and a current value setting means 151 provided between the inverting input terminal and the output terminal of the operational amplifier 0P. It has a certain volume (variable resistance) VR.

The output line disconnection circuit 153 is provided in FIG.
As shown in FIG. 8, a relay 156 having a 2b contact configuration and a solenoid 1 of the relay 156 by energizing the thyristor SCR
It has a relay drive circuit 156A that excites 56a and disconnects the relay contact b, and an indicator light unit including a light emitting diode D incorporated in the relay drive circuit 156A.

Further, the disconnection state reset circuit 154 operates the manual switch S and the transistor Tr by turning on the manual switch S to drop the relay drive circuit 156A to the ground and cut off the relay drive circuit 156A. is there.

The power supply output line 150 is provided with an output circuit 157 in an abnormal state. This output circuit 157
Outputs an off signal from the detection terminal 158 when the power supply output line 150 is disconnected by the relay 156.

The overvoltage detection circuit 147 outputs a changeover switch 148 for setting three different voltage values by switching, and outputs an overvoltage detection signal when an overvoltage exceeding the voltage set by the changeover switch 148 occurs. And a signal output circuit 149 for outputting to the line cutting circuit 153.

Then, the first, second, and third power supply units 141, 142, 143 and the branching unit 14
4 are mounted on din rails (not shown) and are connected in parallel in this order.

That is, the branching unit 144 is provided on the right side of the third power supply unit 143,
DC output side connector 22A of power supply unit 143,
2B is connected to the DC input side connectors 145A and 145B of the branching unit 144.

Therefore, the individual DC output bus lines (Vo +) and (Vo-) of the first, second, and third power supply units 141, 142, and 143 are unified in this order. This DC output bus line (Vo +),
(Vo−) is connected to the power supply output line 150 of the branching unit 144.

The AC input terminals 5A and 5B of the first power supply unit 141 are connected to an external commercial AC power supply 37, and the first, second,.
..The n-th DC output terminal 146-1, 146-2,.
146-n has loads 39-1 and 39-
2, ... 39-n are connected.

Next, the operation of the power supply device configured as described above will be described.

The alternating current input from the AC input terminals 5A and 5B of the first power supply unit 141 is supplied to the second and third power supply units 142 and 143, respectively, resulting in the second and third power supply units. DC can be individually output from each of the DC output terminals 6A and 6B of 142 and 143.

The AC input from the AC input terminals 5A and 5B of the first power supply unit 141 is converted into DC through the power supply circuit 9-1 of each of the power supply units 141, 142 and 143, and then converted to DC. Are supplied to the first, second,..., Nth DC output terminals 14 by the branching unit 144.
, 146-2,... 146-n connected to the loads 39-1, 39-1,.

In the branching unit 144,
The voltage value is set by the switching operation of the changeover switch 148 of the overvoltage detection circuit 147. Therefore, when an overvoltage exceeding the set voltage occurs, an overvoltage detection signal is output from the signal output circuit 149, This overvoltage detection signal is sent to the gate terminal of the thyristor SCR to operate the thyristor SCR.

When the thyristor SCR is energized, the relay drive circuit 156 operates to operate the solenoid 1 of the relay 156.
56a is excited, the relay contact b is disconnected, the power output line 150 is disconnected, and the loads 39-1, 39-1,
..DC supply to 39-n is stopped. At the same time, the light emitting diode D incorporated in the relay drive circuit 156 emits light, and the indicator means turns on.

When power supply output line 150 is disconnected, output circuit 157 in an abnormal state operates, and an off signal is output from detection terminal 158.

Further, when the manual switch S of the disconnection state reset circuit 154 is turned on, the transistor Tr is turned on.
To drop the relay drive circuit 156 to ground,
The relay drive circuit 156 is shut off to perform reset.

In the state in which the voltage set in the overvoltage detecting circuit 147 does not exceed the first, second,..., N-th branching circuits 149-1, 149-2,.
DC is supplied to each power output line 150 of −n. When the current flowing through the power output line 150 exceeds an allowable value, the current is detected by the current detection circuit 152, and the current is detected based on the current. The detection signal (voltage) is sent to the gate terminal of the thyristor SCR to operate the thyristor SCR.

The energization of the thyristor SCR activates the relay drive circuit 156 to operate the solenoid 15 of the relay 56.
6a is excited, the relay contact b is disconnected, the power output line 150 is disconnected, and the loads 39-1, 39-1,.
-DC supply to 39-n is stopped. At the same time, the light emitting diode D incorporated in the relay drive circuit 156 emits light, and the indicator means turns on.

By operating the volume (variable resistance) VR as the current value setting means 151, the allowable current value can be changed.

In the tenth embodiment of the power supply device according to the present invention described above, the first, second, and third power supply units 1
41, 142, 143 and branching unit 144
Are connected in parallel to the din rail in this order. However, in the power supply device according to the present invention, the branching unit 144 may be connected to the first power supply unit 141, or The external commercial AC power supply 37 may be connected to any power supply unit.

According to the tenth embodiment of the power supply device according to the present invention described above, the first, second, and third power supply units 14
1, 142, 143, ie, AC input bus lines (Vin +), (Vin +).
−) And the DC output bus lines (Vo +) and (Vo−) are connected to connectors, respectively, to configure a module power supply, and a branching unit 144 is connected to the module power supply and connected. , A power supply device having a branch function can be realized.

As described above, since a plurality of protection functions are unitized, troublesome wiring processing can be eliminated, a more inexpensive and safe branching function can be provided, and the overall system can be downsized.

Note that the first, second, and third power supply units 1
When the first power supply unit 141 and the branching unit 144 are connected without connecting the power supply units 41, 142, and 143 in parallel, the DC output terminals 6A and 6B of the first power supply unit 141 and the branching unit 144 are connected to each other. The DC input terminals 144A and 144B are wired as shown by the dotted lines in FIG.

(Embodiment 11) FIGS. 19 and 20 show an eleventh embodiment of a power supply device according to the present invention.

An input bus line and an output bus line are provided in each power supply device, and the input and output of each power supply device can be electrically and mechanically connected by connectors, and the respective power supply devices can be operated in parallel or only the input system can be used. There is a module power supply that can omit the wiring between each power supply when connected and used.
The input bus lines are "L", "N", and "FG", and the output bus lines are (+) and (-), and the bus lines are installed at a common position in any output system. I was

However, in such a conventional structure, when connecting power supply devices having different output voltages,
Since the output bus lines are the same, erroneous connection may occur at the output unit.

Therefore, the casing must be subjected to some kind of processing so that connection by an output bus line cannot be made except for one output system. For this reason, one output system does not require wiring between power supply units during parallel operation, but another output system requires wiring between power supply units during parallel operation. .

Embodiment 11 of the power supply unit according to the present invention
Has been made in view of such a conventional problem. By inserting a separator capable of electrically interrupting only the output bus line between power supply devices having different output voltages, the above problem is solved. Is to solve.

Embodiment 11 of the power supply unit according to the present invention
Is a first power supply unit 161 as shown in FIG.
, A second power supply unit 162, and a separator 163 as an additional function unit.

The first power supply unit 161 and the second power supply unit 162 according to the eleventh embodiment of the power supply device according to the present invention are the same as the first power supply unit according to the fifth embodiment of the power supply device according to the present invention. The FG-side contactors 163A-1, 163A-1 and 163A-1 are connected to the power supply unit 71 and the second power supply unit 72.
63A-2 and bus lines 166C-1, 166C-2
Is added, and since other configurations are the same,
The same reference numerals are given and the description is omitted.

As shown in FIG. 20, the AC input connectors 164A and 164B, the AC output connectors 165A and 165B, and the FG connector 163 are provided on the separator 163.
A, 163B, a bus line 166A connecting the AC input side connector 164A and the AC output side connector 165A.
A bus line 166B connecting the AC input side connector 164B and the AC output side connector 165B, and a bus line 16 connecting the FG side connectors 163A and 163B.
6C. FIG. 19 does not disclose the FG-side connectors 163A and 163B and the bus line 166C.

The first power supply unit 161, the separator 163, and the second power supply unit 162 are mounted on a din rail (not shown) and are connected in parallel in this order.

That is, the first power supply unit 161 and the separator 163 are formed by connecting the AC output side connectors 21A and 21B of the first power supply unit 161 to the AC input side connectors 164A and 164B of the separator 163 and the FG side connector 163C-1. Are connected to the FG side connector 163A and are connected to each other. The separator 163 and the second power supply unit 162 are connected to the AC output side connectors 165A and 165B of the separator 163 by the AC input side connector 18A of the second power supply unit 162. , 18B, FG side connector 1
63B is connected to the FG connector 163C-2.

The AC input terminals 5A and 5B of the first power supply unit 71 are connected to the external commercial AC power supply 37, and the DC output terminals 6A and 6A of the second power supply unit 162.
A load 38 is connected to 6B.

Accordingly, the AC power supplied from the AC input terminals 5A and 5B of the first power supply unit 161 is supplied to the AC input bus line (V) of the second power supply unit 162 through the bus lines 166A and 166B of the separator 163.
in +) and (Vin-). In this case, the first
DC output bus line (Vo) of the power supply unit 161
+), (Vo-) and the DC output bus lines (Vo +), (Vo-) of the second power supply unit 162 are the separator 1
63 is electrically disconnected.

Therefore, according to the eleventh embodiment of the power supply device according to the present invention, power supply units 161 and 162 having different output voltages can be connected to each other without wiring, and power supply units having different output voltages can be connected. Unit 1
61 and 162 can be connected, and even when the power supply units 161 and 162 having different output voltages are operated in parallel, they can be connected without mutual wiring. Further, it is possible to drive a plurality of power supply units each having a different output voltage only in one place of the wiring of the input system.

(Twelfth Embodiment) FIG. 24 shows a power supply device according to a twelfth embodiment of the present invention.

In general, when power supplies are connected in series, as shown in FIG. 21, a (10) output terminal 177A of one power supply 177 is connected to a (1) output terminal 178B of the other power supply 178. To the load 179, and
The (−) output terminal 177B of one power supply 177 and the (+) output terminal 178A of the other power supply 178 are connected by wiring.

Further, depending on the circuit type of the power supply device, as shown in FIG. 22, one of the power supply devices 177 and 178 may be used to prevent a reverse voltage from being applied to the built-in output aluminum electrolytic capacitor. Each (+)
(-) Between output terminals 177A and 177B and (+) (-)
A diode D may be required between the output terminals 178A and 178B.

As shown in FIG. 23, connectors 179A, 179B, 180A, and 180B can connect AC input bus lines (Vin +) and (Vin-) and DC output bus lines (Vo +) and (Vo-) with one touch. , 18
The same applies to power supply units 184 and 185 having 1A, 181B, 183A and 183B in the main body.

However, such a method of serially connecting power supply devices has a problem that the number of wiring steps is significantly increased as compared with a single power supply device.

Embodiment 11 of the power supply unit according to the present invention
Has been made in view of such a conventional problem, and an AC input bus line (Vin) is provided by inserting a series connection unit between one and the other power supply units.
+), (Vin-), DC output bus line (Vo +),
Even in the case of a power supply unit having a connector capable of connecting (Vo-) with one touch in the main body, the same wiring man-hour as a single power supply device can be achieved.

Embodiment 11 of the power supply unit according to the present invention
Is a first power supply unit 191 as shown in FIG.
, A second power supply unit 192, and a series connection unit 193 as an additional function unit.

The first power supply unit 191 and the second power supply unit 192 according to the eleventh embodiment of the power supply device according to the present invention are the same as the first power supply unit according to the sixth embodiment of the power supply device according to the present invention. Since the power supply unit 81 and the second power supply unit 82 have the same configuration, the same reference numerals are given and the description is omitted.

The series connection unit 193 includes the AC input side connectors 194A and 194B and the AC output side connector 19
5A, 195B, AC input side connector (+ side connector) 194A and AC output side connector (+ side connector) 1
Bus line 196A connecting the AC input side connector (-side connector) 195B to the AC input side connector (-side connector) 194B and the bus line 1 connecting the AC output side connector (-side connector) 195B.
A bus line 19 for connecting the DC input side connector 197A and the DC output side connector (− side connector) 198B to the DC input side connector (+ side connector) 197A and the DC output side connector (− side connector) 198B;
9.

The first power supply unit 191, the series connection unit 193, and the second power supply unit 192 are mounted on a din rail (not shown) and are connected in parallel in this order.

That is, the first power supply unit 191 and the series connection unit 193 are
Are connected to the AC input connectors 194A and 194B of the series connection unit 193, and the DC output connectors 22A and 22A are connected to the DC input connectors 197A and 197B to be connected to each other. is there.

The series connection unit 193 and the second power supply unit 192 connect the AC output side connectors 195A and 195B of the series connection unit 193 to the AC input side connectors 18A and 18B of the second power supply unit 162, respectively. The DC output side connectors 198A, 198B are connected to the DC input side connectors 19A, 19B and are connected to each other. An external commercial AC power supply 37 is connected to the AC input terminals 5A and 5B of the first power supply unit 191.
DC output terminal 6B on the (−) side of first power supply unit 191
And the (+) side DC output terminal 6 of the second power supply unit 192
A is connected to the load 38.

Therefore, the alternating current input from the AC input terminals 5A and 5B of the first power supply unit 191 is applied to the AC input bus line (Vin) of the first power supply unit 191.
+) And (Vin−) through the bus lines 196A and 196B of the series connection unit 193, and the AC input bus lines (Vin +) and (Vin +) of the second power supply unit 192.
-).

The DC output bus line (Vo +) of the first power supply unit 191 and the DC output bus line (Vo−) of the second power supply unit 192 are connected in series connection unit 1
93 are connected by a bus line 199.

Therefore, it is possible to connect with the same wiring as when a single power supply device is used, and it is possible to achieve the same wiring man-hour as a single power supply device.

As shown in FIG. 25, the series connection unit 193-1 includes bus lines 196A and 196B.
In addition, DC input side connector (+ side connector) 197A
A bus line 200 connecting the DC output side connector (+ side connector) 198A and a bus line 201 connecting the DC input side connector (− side connector) 197B and the DC output side connector (− side connector) 198B. Provided,
One protection diode 202 is connected to the bus line 200,
The bus line 201 may be provided with the other protection diodes 203, respectively, and the anode side of the one protection diode 202 and the cathode side of the other protection diode 203 may be short-circuited by the bus line 204.

By using the series connection unit 193-1 having the protection diodes 202 and 203 in the same manner as in the case of the series connection unit 193, the built-in output aluminum electrolytic capacitor may be used depending on the circuit system of the power supply device. To prevent reverse voltage from being applied to the
Regardless of the circuit type of the power supply unit connected in series, it is possible to reduce wiring in series connection.

According to the twelfth embodiment of the power supply device according to the present invention described above, it is possible to connect with the same wiring as when a single power supply device is used, and it is possible to achieve the same wiring man-hour as a single power supply device.

(Thirteenth Embodiment) FIG. 26 shows a thirteenth embodiment of the power supply device according to the present invention.

A system configuration of a plurality of power supply units using a conventional bus line is as follows. That is, when an input bus line and an output bus line are provided inside the power supply device, the input bus line connects the input system from an input terminal of one power supply device to an input system when connecting a plurality of power supply devices. Can drive multiple power supplies,
By the output bus line, the capacity corresponding to the number connected to the output bus line can be supplied from the terminal of one power supply device to the load.

However, in such a conventional system configuration of a power supply device using a bus line, even when it is desired to stop the operation of only one power supply device during maintenance,
A plurality of power supplies connected by a bus line must be stopped simultaneously.

In a power supply device operated in parallel by a bus line, if the required power on the load side of the power supply device changes, if the required power on the load side is extremely lower than the power supply device operating in parallel, the power supply There is a problem that the efficiency of the device is deteriorated. In the case where power is supplied from a power supply device connected via a bus line to a plurality of loads, such a configuration does not allow insulation for each output.

In the thirteenth embodiment of the power supply device according to the present invention, a switch is provided between the bus line itself or the power supply circuit of the power supply unit to solve the above problem.

Embodiment 13 of the power supply unit according to the present invention
Is, as shown in FIG. 26, a first power supply unit 211
, A second power supply unit 212 and a third power supply unit 213.

The first, second, and third power supply units 211, 212, and 213 have a power supply circuit 9-1, AC input terminals 5A and 5B, DC output terminals 6A and 6B, and an AC input bus. Lines (Vin +) and (Vin-) and DC output bus lines (Vo +) and (Vo-) are arranged.

The power supply circuit 9-1 has a positive input terminal 9
a, a negative input terminal 9b, a positive output terminal 9c, and a negative output terminal 9d, and the positive input terminal 9a and the negative input terminal 9b are connected to the AC input terminals 5A and 5B. The positive output terminal 9c and the negative output terminal 9d are DC output terminals 6A,
24VD which is connected to the AC power supply 6B and stabilizes an AC power supply externally input through the AC input terminals 5A and 5B.
The output voltage is converted into a C output voltage and output to the outside via the DC output terminals 6A and 6B.

The first, second and third power supply units 2
11, 212, and 213, AC input connectors 18 A and 18 B and a DC input connector 19
A, 19B are arranged respectively, and on the other side panel side, AC output side connectors 21A, 21B,
DC output side connectors 22A and 22B are arranged respectively.

Then, the AC input side connectors 18A, 18
B, AC output side connectors 21A and 21B are connected to AC input bus lines (Vin +) and (Vin−), and DC input side connectors 19A and 19B and DC output side connectors 22A and 22B are connected to DC output bus line (Vo +). ), (V
o-).

The positive input terminal section 9a of the power supply circuit 9-1 is connected to the AC input bus line (Vin +) through the input system switch 214.
The negative input terminal 9b and the AC input bus line (Vin-) are connected by a wiring 215.

The plus side output terminal 9c of the power supply circuit 9-1 is connected to the DC output bus line (Vo +) through the first output system switch 216.
The -1 negative side output terminal 9d and the DC output bus line (Vo-) are connected through a second output system switch 217.

The first, second, and third power supply units 211,
212 and 213 are mounted on din rails (not shown), and are connected in parallel in this order.

That is, the first power supply unit 211, the second power supply unit 212, and the second power supply unit 212
And the third power supply unit 213, the AC output side connectors 21A, 21B are connected to the AC input side connectors 18A, 18A.
B, and the DC output side connectors 22A and 22B are connected to the DC input side connectors 19A and 19B and are connected in this order.

Therefore, the individual AC input bus lines (Vin +) and (Vin-) and the DC output bus lines (Vo +) and (Vo-) of the first, second, and third power supply units 211, 212, and 213 are , And are unified in this order.

Further, the AC input terminals 5A and 5B of the first power supply unit 211 are connected to an external commercial AC power supply 37, and the DC output side terminal 6 of the third power supply unit 213 is connected.
A load 6 is connected to A and 6B.

Next, the operation of the power supply device configured as described above will be described.

The first, second, and third power supply units 211,
At 212 and 213, when the input system switch 214 and the first and second output system switches 216 and 217 are on, the first, second and third power supply units 21
1, 212 and 213 are connected to the AC input bus lines (Vin +) and (Vin-) and the DC output bus lines (Vo +) and (Vo-).

Therefore, the AC input from the AC input terminals 5A and 5B of the first power supply unit 211 is
As a result of being supplied to each of the third power supply units 212, 213, the first, second, and third power supply units 211, 2
DC can be individually output from each of the DC output terminals 12A and 13B, and the DC can be supplied to the load 38.

In the first, second, and third power supply units 211, 212, and 213, the input system switch 2
14. By turning off the first and second output system switches 216 and 217, the power supply circuit 9-1 is connected to the AC input bus lines (Vin +) and (Vin-) and the DC output bus lines (Vo +) and (Vo). -).

Therefore, the AC input bus line (Vin
+), (Vin-) and DC output bus line (Vo
+) And (Vo-), the first, second, and third power supply units 211, 212, and 213 can be arbitrarily operated and non-operated by the input system switch 214.
The output system switches 216 and 217 allow the output section to be arbitrarily insulated.

However, in the case of the output system switches 216 and 217 as shown in FIG. 26, when four power supply units are connected and operated, two power supply units are operated in parallel operation in order to insulate the output of each power supply unit. I can't let that happen.

The thirteenth embodiment of the power supply device according to the present invention can also be applied to the configuration shown in FIG.

The positive input terminal 9a of the power supply circuit 9-1
And the AC input bus line (Vin +) are connected through the input system switch 214, and the negative input terminal 9b of the power supply circuit 9-1 and the AC input bus line (Vin +) are connected.
−) Is connected by a wiring 215.

The plus output terminal portion 9c of the power supply circuit 9-1 and the DC output bus line (Vo +) are connected to a wiring 218.
A, and the negative output terminal 9d of the power supply circuit 9-1 and the DC output bus line (Vo-) are connected by a wiring 218B.

The DC output bus line (Vo +) and the DC output side connector 22A are connected to the DC system switch 219.
DC output bus line (Vo-)
And the DC output side connector 22B are connected to the DC system switch 22.
Connected through 0.

The first, second, and third power supply units 2
11, 212, and 213 are provided with AC input connectors 18A and 18B and DC input connectors 19A and 19B, respectively, on one side panel side, and are provided with an AC output side connector on the other side panel side. Connectors 21A, 21
B and DC output side connectors 22A and 22B are arranged respectively. Then, the AC input side connectors 18A, 1
8B, the AC output side connectors 21A and 21B are connected to AC input bus lines (Vin +) and (Vin-),
The DC input side connectors 19A and 19B and the DC output side connectors 22A and 22B are DC output bus lines (Vo +),
(Vo-).

The first, second, and third power supply units 211,
212 and 213 are mounted on din rails (not shown), and are connected in parallel in this order.

That is, the first power supply unit 211, the second power supply unit 212, and the second power supply unit 212
And the third power supply unit 213, the AC output side connectors 21A, 21B are connected to the AC input side connectors 18A, 18A.
B, and the DC output side connectors 22A and 22B are connected to the DC input side connectors 19A and 19B and are connected in this order.

Therefore, the individual AC input bus lines (Vin +) and (Vin-) and the DC output bus lines (Vo +) and (Vo-) of the first, second, and third power supply units 211, 212, and 213 are , And are unified in this order.

The AC input terminals 5A and 5B of the first power supply unit 211 are connected to an external commercial AC power supply 37, and the DC output side terminal 6 of the third power supply unit 213
A load 6 is connected to A and 6B.

Next, the operation of the power supply device configured as described above will be described.

The first, second, and third power supply units 211,
At 212 and 213, when the input system switch 214 and the output system switches 219 and 220 are on, the first, second, and third power supply units 211 and 212,
213 is a power supply circuit 9-1.
+), (Vin-) and DC output bus line (Vo
+) And (Vo-), and the DC output bus lines (Vo +) and (Vo-) of the first, second, and third power supply units 211, 212, and 213 are in a connected state.

Therefore, the alternating current input from the AC input terminals 5A and 5B of the first power supply unit 211
As a result of being supplied to each of the third power supply units 212, 213, the first, second, and third power supply units 211, 2
DC can be individually output from each of the DC output terminals 12A and 13B, and the DC can be supplied to the load 38.

When the input system switch 214 and the output system switches 219 and 220 are turned off, the input system switch 214 and the output system switches 219 and 220 are turned off.
The power supply unit 20 provided therein can be cut off from the AC input bus lines (Vin +) and (Vin-). Therefore, the AC input bus line (Vin +),
(Vin-) and DC output bus lines (Vo +), (V
The first, second, and third power supply units 211, 212, and 213 connected to each other by o-) can be arbitrarily operated / non-operated by the input system switch 214, and can be operated by the output system switches 219 and 220. It becomes possible to be independent and independent.

However, in the case of the output system switches 219 and 220 as shown in FIG.
+) And (Vo-) themselves have switches, so when four power supply units are connected and operated, two power supply units can be operated in parallel operation.
When the power supply unit located at the center of the unit connection is insulated, the output cannot be insulated for each unit.

According to the thirteenth embodiment of the power supply device according to the present invention, the AC input bus line (Vin +),
(Vin-) and DC output bus lines (Vo +), (V
When a plurality of power supply units are operated using o-), when one power supply unit is to be inspected (maintenance), the output system switches 216 and 217 are turned off to obtain the same AC input. Bus line (Vi
n +), (Vin-) and the DC output bus line (Vo-
+) And (Vo-) maintenance and inspection can be performed without stopping the operation of other power supply units.

Also, an AC input bus line (Vin +),
(Vin-) and DC output bus lines (Vo +), (V
When multiple power supply units are operated in parallel using o-) and the power supply to the load may be less than the rating of the power supply unit operated in parallel, only the power supply unit that supplies the necessary power The input system switch 214 and the output system switches 217 and 218 (219 and 220) are turned on, and the other power supply units are connected to the input system switch 2
14, output system switches 217, 218 (219, 22)
Turning off 0) results in overall efficiency improvement.

The AC input bus lines (Vin +), (Vi
n-) and DC output bus lines (Vo +), (Vo-)
When a plurality of power supply units are operated by using the power supply, the output can be insulated to a plurality of loads by turning off the input system switch 214.

[0293]

As described above, according to the power supply device of the present invention, the bus lines for connecting the power supply units, that is, the AC input bus lines, the DC output bus lines, and the signal bus lines are connected by connectors. By constructing a module power supply and adding an additional function unit to the module power supply by connecting a connector, a power supply device having additional functions, which has reduced wiring and large noise immunity, can be realized.

[Brief description of the drawings]

FIG. 1 is a configuration explanatory diagram of a power supply device (Embodiment 1) according to the present invention.

FIG. 2 is an explanatory diagram of a power supply circuit in the power supply device (first embodiment).

FIG. 3 is a configuration explanatory diagram of a power supply device (Embodiment 2) according to the present invention.

FIG. 4 is a configuration explanatory diagram of a power supply device (Embodiment 3) according to the present invention.

FIG. 5 is an explanatory diagram of a configuration of a power supply device (Embodiment 4) according to the present invention.

FIG. 6 is a configuration explanatory diagram of a power supply device (Embodiment 5) according to the present invention.

FIG. 7 is an explanatory diagram of a configuration of a power supply device (Embodiment 6) according to the present invention.

FIG. 8 is a configuration explanatory view of a power supply device (Embodiment 7) according to the present invention.

FIG. 9 is a configuration explanatory diagram of a power supply device (Embodiment 8) according to the present invention.

FIG. 10 is an explanatory diagram of a system configuration of a plurality of power supply devices having a protection circuit.

FIG. 11 is a configuration explanatory view of a power supply device (Embodiment 9) according to the present invention.

FIG. 12 is an equivalent circuit diagram of the power supply device (Embodiment 9).

FIG. 13 is an explanatory diagram in a case where a collision prevention device is added to the system configuration of a plurality of power supply devices having a collision prevention circuit.

FIG. 14 is an explanatory diagram in a case where a collision prevention device is added to the system configuration of a plurality of power supply devices having a collision prevention circuit.

FIG. 15 is an explanatory diagram in a case where a squib is added to the system configuration of a plurality of power supplies having a squib.

FIG. 16 is a configuration explanatory diagram of a power supply device (Embodiment 10) according to the present invention.

FIG. 17 is an explanatory diagram of a configuration of a branching unit in the power supply device (Embodiment 10).

FIG. 18 is an explanatory diagram of a configuration of a branching circuit of the branching unit.

FIG. 19 is a configuration explanatory diagram of a power supply device (Embodiment 11) according to the present invention.

FIG. 20 is an explanatory diagram of an exploded state of the power supply device (Embodiment 11).

FIG. 21 is an explanatory diagram of a series connection between power supply devices.

FIG. 22 is an explanatory diagram of series connection between power supply devices.

FIG. 23 is an explanatory diagram of a series connection between power supply devices.

FIG. 24 is a configuration explanatory diagram of the power supply device (Embodiment 12).

FIG. 25 is another structural explanatory view of the power supply device (Embodiment 12).

FIG. 26 is a diagram illustrating the configuration of the power supply device (the thirteenth embodiment).

FIG. 27 is another structural explanatory diagram of the power supply device (the thirteenth embodiment).

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 1st power supply unit 2 2nd power supply unit 3 3rd power supply unit 4 Additional function unit 5A AC input terminal 5B AC input terminal 6A DC output terminal 6B DC output terminal 7 Input voltage rectification circuit 8A Input smoothing capacitor 8B Output smoothing Capacitor 9 Power supply circuit 9-1 Power supply circuit 10 High-frequency transformer 11 High-frequency rectifier circuit 12 Control circuit 13 Switch element 15A AC output side connector (connector connection means) 15B AC output side connector (connector connection means) 16A DC output side connector (connector connection) Means) 16B DC output side connector (connector connecting means) 17 Current valance signal output side connector (connector connecting means) 18A AC input side connector (connector connecting means) 18B AC input side connector (connector connecting means) 19A DC input side connector Connector (connector) 19B DC input connector (connector) 20 Current valance signal input connector (connector) 21A AC output connector (connector) 21B AC output connector (connector) 22A DC Output side connector (connector connecting means) 22B DC output side connector (connector connecting means) 23 Current valance signal output side connector 30A AC input terminal 30B AC input terminal 31A DC output terminal 31B DC output terminal 32 Power conversion or signal processing circuit 33A AC Input side connector (connector connecting means) 33B AC input side connector (connector connecting means) 34A DC input side connector (connector connecting means) 34B DC input side connector (connector connecting means) 35 Current valance signal input Power connector (connector connection means) 36 Interface connection terminal 37 External commercial AC power supply 38 Load 41 First power supply unit 42 Second power supply unit 43 Third power supply unit 44 Additional function unit 46A AC input terminal 46B AC input terminal 47A AC output side connector (connector connecting means) 47B AC output side connector (connector connecting means) 48 conversion circuit 51 first power supply unit 52 second power supply unit 53 third power supply unit 54 additional unit 55A DC input side connector (connector 55B DC input side connector (connector connection means) 56 Conversion circuit 57A DC output side terminal 57B DC output side terminal 61 First power supply unit 62 Second power supply unit 63 Additional function unit 64A AC input side connector (Connector connection) Means) 64B AC input side connector (connector connecting means) 68A DC input side connector (connector connecting means) 68B DC input side connector (connector connecting means) 69A DC output side terminal 69B DC output side terminal 71 First power supply unit 72 2 power supply unit 73 additional function unit 81 first power supply unit 82 second power supply unit 83 additional function unit 84A AC input side connector (connector connecting means) 84B AC input side connector (connector connecting means) 85A AC output side connector ( 85B AC output side connector (connector connection means) 86 Conversion circuit 87A DC input side connector (connector connection means) 87B DC input side connector (connector connection means) 88A DC output side terminal 88B DC output side terminal 91 first Power supply Unit 92 Second power supply unit 93 Third power supply unit 94 Output abnormality detection unit (additional function unit) 95A DC input side connector (connector connection means) 95B DC input side connector (connector connection means) 96A DC output side terminal 96B DC Output terminal 97A DC output terminal 97B DC output terminal 98A DC output terminal 98B DC output terminal 99A Alarm output terminal 99B Alarm output terminal 100 Disconnect circuit 101 Disconnect circuit 102 Disconnect circuit 103 Output abnormality detection circuit 103A First output Abnormality detector 103B Second output abnormality detector 103C Third output abnormality detector 104 First output voltage detector 105 Second output voltage detector 106 Third output voltage detector 107 Photocoupler 108 Signal output Side connector (connector 109A signal input side connector (connector connecting means) 109B signal output side connector (connector connecting means) 110A signal input side connector (connector connecting means) 11OB signal output side connector (connector connecting means) 112A first output voltage detecting section 112B Second output voltage detector 112C Third output voltage detector 113A First output abnormality detector 113B Second output abnormality detector 113C Third output abnormality detector 114 Alarm output unit 115A DC input side connector (connector 115A DC output side connector (connector connection means) 116A Alarm output terminal 116B Alarm output terminal 117A Signal input side connector 118 Photocoupler 121 First power supply unit 122 Second power supply unit 123 Third power supply unit 24 Assault unit (additional function unit) 141 First power supply unit 142 Second power supply unit 143 Third power supply unit 144 Branching unit (additional function unit) 150 Power supply output line (supply line) 151 Current value setting means 152 Current detection circuit 153 Output line disconnection circuit 154 Disconnection state reset circuit 155 Current detection / amplification unit 156 Relay 156A Relay drive circuit 157 Output circuit 168 Detection terminal 161 First power supply unit 162 Second power supply unit 163 Separator (additional function unit) 191 First power supply unit 192 Second power supply unit 193 Series connection unit (additional function unit) 211 First power supply unit 212 Second power supply unit 213 Third power supply unit 214 Input system switch 215 Wiring 216 Output system switch 217 Output system switch 218A Wiring 218B Wiring 219 Output system switch 220 Output system switch (・ in +) AC input bus line (bus line) (・ in-) AC input bus line (bus line) (・ o +) DC output bus line (bus line) (・ o-) DC output bus line (bus line) (CB) Current balance signal bus line (signal bus line)

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Takashi Horie 801 Shimogyo-ku, Shimogyo-ku, Kyoto-shi 801 Shiouji-Dori Horikawa Higashi-iri Minami-Fudodou-cho Omron Co., Ltd. Omron Co., Ltd. (72) Inventor Takatoshi Omochi 72) Inventor: Katsuya Marumo None (reference) 5G065 AA00 AA08 BA01 BA04 DA01 DA06 DA07 EA06 FA01 GA04 HA04 HA07 JA01 LA01 LA02 MA10 PA05 5H730 AA08 AA13 AA15 AS01 AS05 BB23 BB43 BB57 BB84 CC01 DD04 EE07 FD01 FD31 FD37 FG01 ZZ01 ZZ05 ZZ11 ZZ12

Claims (12)

[Claims] A module power supply comprising a power supply unit having a bus line; and a connector connection means for connecting the module power supply to the module power supply with a predetermined additional function using the bus line. A power supply device characterized by being connected by: 2. An AC input bus line, wherein the bus line supplies an AC input from the outside to a power supply circuit;
A DC output bus line for outputting the DC converted by the power supply circuit, a first signal bus line used for control means for equalizing output currents of the plurality of power supply units, and detecting a state of each of the power supply units Used for the second
The power supply device according to claim 1, wherein the power supply device is at least one of: 3. The power supply device according to claim 1, wherein the additional function unit has an interface with the outside. 4. The additional function unit has a function of performing a predetermined conversion by inputting an external AC, and transmitting the AC converted by the additional function unit to the power supply unit using the AC input bus line. 3. The power supply according to claim 2, wherein the power supply is supplied. 5. The power supply according to claim 4, wherein the additional function unit is an inrush current prevention unit having an inrush current prevention function for preventing an inrush current of an external commercial power supply. 6. The additional function unit has a function of performing a predetermined conversion to the input DC, the additional function unit inputs the DC using the DC output bus line of the power supply unit, The power supply device according to claim 2, wherein the power supply device performs predetermined conversion and supplies the load to a load. 7. An output abnormality detecting unit having a means for outputting or displaying a result when at least one of the plurality of DC outputs is abnormal, when the additional function unit detects that at least one of the plurality of DC outputs is abnormal. Certain claim 1
Or the power supply device according to claim 2. 8. The additional function unit detects a terminal connected to a load by branching a DC output of the module power supply into a plurality of parts, and an output current flowing through the terminal, and when the detected current reaches a set value. A function of disconnecting a supply line of the module power supply, a function of detecting an overvoltage from the module power supply to disconnect the supply line of the module power supply, a function of notifying an abnormal state of current or voltage, and a function of The power supply device according to claim 1 or 2, wherein the power supply device is a branching unit having a reset function capable of canceling disconnection. 9. The additional function unit has a function of performing a predetermined conversion to the input AC, and the additional function unit supplies the AC by using the AC input bus line of one of the power supply units. 3. The power supply device according to claim 2, further comprising receiving the converted AC and supplying the converted AC to the AC input bus line of the other power supply unit. 4. 10. The additional function unit is a separator having a function of connecting only between the AC input bus line of one power supply unit and the AC input bus line of the other power supply unit. A power supply according to claim 1. 11. The additional function unit has a function of performing a predetermined conversion to input DC, and the additional function unit supplies the DC by using the DC output bus line of one of the power supply units. 3. The power supply device according to claim 2, further comprising receiving the converted DC and supplying the converted DC to the DC output bus line of the other power supply unit. 4. 12. The additional function unit has a series connection function of connecting a minus line of the DC output bus line of one power supply unit to a plus line of the DC output bus line of the other power supply unit. The power supply device according to claim 11, wherein the power supply device has a series connection unit.