CN105307318B - Switching device and load control system - Google Patents
Switching device and load control system Download PDFInfo
- Publication number
- CN105307318B CN105307318B CN201510106993.5A CN201510106993A CN105307318B CN 105307318 B CN105307318 B CN 105307318B CN 201510106993 A CN201510106993 A CN 201510106993A CN 105307318 B CN105307318 B CN 105307318B
- Authority
- CN
- China
- Prior art keywords
- mentioned
- power supply
- terminal
- switching device
- relay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Relay Circuits (AREA)
- Keying Circuit Devices (AREA)
Abstract
Inhibit to cause the switching device and load control system of the generation of failure because of mistake of wiring etc. the issue of the present invention is to provide a kind of.Polarity switching portion (13) is built-in with overcurrent protection circuit (134).Then, in the case where being more than upper limit value from the electric current of first lead-out terminal (132) and second output terminal sub (133) output, stop signal is exported from overcurrent protection circuit (134) to controller (131).Controller (131) makes whole field-effect transistors cut-offs of H-bridge circuit (130) stop the supply of output current when receiving above-mentioned stop signal.
Description
Technical field
The present invention relates to a kind of switching device and load control systems, more particularly to a kind of that lighting load etc. is controlled
Switching device and using the switching device load control system.
Background technology
As previous example, the switching device ([Japanese Laid-Open Patent Publication the of reference literature 1 of the record of document 1 is instantiated
No. 2012-174513]).The previous example is configured to cut the supply to load electric and cut-out that carry out via power line
It changes, is installed in the switch enclosure (switch box) for being embedded in wall.
In addition, the previous example has relay unit and controls the control circuit of relay unit.Relay unit has
There are electromagnetic relay and semiconductor relay.Electromagnetic relay as mechanical relay is made of contact and magnet exciting coil.It touches
Point is arranged to the closure contact (make contact) of single channel in power line.Magnet exciting coil is in parallel with load (luminaire)
Setting.
Semiconductor relay is made of opening/closing portion and driving portion.Opening/closing portion includes the semiconductor element by light type, according to being
It is no to there is the light from driving portion to turn on/off (ON/OFF).Driving portion includes the semiconductor element of light emitting-type, based on from control
On/off control signal that circuit processed provides carries out the stopping that shining/shine.
That is, in the previous example recorded in document 1, when touch panel is when switch portions are operated, control circuit is to semiconductor
Relay is controlled to drive electromagnetic relay, and on-off is connect to the power supply of luminaire by what is carried out via power line
It opens.
In addition, in the previous example recorded in document 1, the magnet exciting coil of electromagnetic relay is via semiconductor relay and with bearing
Load is connected to identical power supply, therefore do not allow to be also easy to produce the mistake (operation error) of wiring.However, in magnet exciting coil and in addition
In the case of the structure of different power supply connections, there is the worry for the mistake for generating wiring.Moreover, in the mistake for generating wiring
In the case of, it is possible to excessive electric current is caused to flow through to the path of magnet exciting coil circulating current and switching device breaks down.
Invention content
The invention that the present invention is in view of the above problems and completes, its object is to inhibit to cause failure because of mistake of wiring etc.
Generation.
The present invention switching device be control to be used for from power supply power to the load for the remote control that circuit is opened and closed after
The switching device of electric appliance, the switching device have：Power supply unit generates the electric power of the driving of above-mentioned banked relay；Power supply
Portion, will be by the above-mentioned power supply that above-mentioned power supply unit generates to above-mentioned banked relay；Operation portion accepts operation input；
And control unit, the aforesaid operations input accepted with aforesaid operations portion accordingly control carried out by above-mentioned power supply it is above-mentioned
The supply of electric power, wherein, above-mentioned power supply is configured to stop when output current is more than defined upper limit value the confession of output current
It gives.
Load control system according to the present invention has to being used to be opened and closed for circuit from what power supply powered to the load
Banked relay and the above-mentioned banked relay of control above-mentioned switching device.
Description of the drawings
Fig. 1 is the block diagram for representing the switching device involved by embodiment.
Fig. 2 is the circuit structure diagram of the power supply in embodiment.
Fig. 3 is the stereoscopic figure of embodiment.
Fig. 4 is the stereoscopic figure of the state after the unloading operation handle of embodiment.
Fig. 5 is the sequence diagram of the action specification of embodiment.
Fig. 6 is the system construction drawing for representing the load control system involved by embodiment.
Specific embodiment
In the following, explain the switching device and this hair of an embodiment according to the present invention in detail with reference to attached drawing
The load control system of a bright involved embodiment.In addition, in the following description, it is negative to instantiate illumination as load
It carries, but the type loaded is not limited to lighting load.
As shown in fig. 6, the load control system of present embodiment have switching device 1 and three banked relays 2 (2A,
2B、2C).Wherein, in the following description, the mark of " 2A ", " 2B ", " 2C " are marked in the case where distinguishing three banked relays
Note marks the label of " 2 " in the case where not differentiating between three banked relays.Similarly, in the feelings for distinguishing three lighting loads
The label of " 4A ", " 4B ", " 4C " are marked under condition, the label of " 4 " is marked in the case where not differentiating between three lighting loads.
Banked relay 2 be it is previous known, by main contacts 20, relay coil 21, auxiliary contact 22, diode 23,
24th, the compositions such as a pair of of signal terminal (the first signal terminal 251, second signal terminal 252).Main contacts 20 be inserted into for from
Power supply (AC power 3) supplies circuit to what lighting load 4 was powered.In the public affairs of one end of relay coil 21 connection auxiliary contact 22
Terminal altogether.In addition, the other end of relay coil 21 is connect with the first signal terminal 251.
The anode of the switched terminal connection diode 23 of one side of auxiliary contact 22, the switching of the opposing party of auxiliary contact 22
Terminal connects the cathode of diode 24.Auxiliary contact 22 are configured to interlock with main contacts 20, are opened for example, being in main contacts 20
The public terminal of auxiliary contact 22 is connect with the switched terminal of 23 side of diode during state (with reference to Fig. 6), is in main contacts 20
The public terminal of auxiliary contact 22 is connect with the switched terminal of 24 side of diode during closed state.In addition, the cathode of diode 23
And the anode of diode 24 is connect with second signal terminal 252.In addition, though the illustration is omitted, but in the diode of a side
Series circuit (differential circuit) inserted with capacitor and resistance between 23 anode-cathode.
When applying DC voltage between signal terminal (that is, when so that the first signal terminal 251 compared to the
Binary signal terminal 252 applies DC voltage for the mode of high potential between the first signal terminal 251 and second signal terminal 252
When), exciting current is with first signal terminal 251 → relay coil, 21 → auxiliary contact, 22 → diode, 23 → second signal end
The path flowing of son 252, therefore main contacts 20 is switched to closed state (that is, main contacts 20 becomes connecing from opening state
It is logical).When main contacts 20 is connected, linkedly auxiliary contact 22 (i.e. the public terminals of auxiliary contact 22) are switched with main contacts 20
To 24 side of diode, therefore there is no exciting current flowings in relay coil 21.But since banked relay 2 is that have
The relay of the self-locking type of permanent magnet, therefore maintain closed state main contacts 20 after exciting current stopping.
In addition, when the DC voltage for applying opposite polarity between signal terminal (that is, when so that second signal
Terminal 252 believes the first signal terminal 251 and second compared to mode of first signal terminal 251 for high potential (opposite polarity)
When applying DC voltage between number terminal 252), exciting current is with 24 → auxiliary contact of second signal 252 → diode of terminal 22
The path flowing of 21 → the first signal terminal 251 of → relay coil, therefore main contacts 20 is switched to open shape from closed state
State (that is, main contacts 20 is gone off).When main contacts 20 disconnects, linkedly auxiliary contact 22 are cut with main contacts 20
23 side of diode is changed to, therefore there is no exciting current flowings in relay coil 21.But even if stop it in exciting current
Main contacts 20 is also maintained open state afterwards.
When banked relay 2 (main contacts 20) is connected, from AC power 3 via banked relay 2 to lighting load 4
AC power is supplied, so as to which lighting load 4 starts and (lights).In addition, when banked relay 2 (main contacts 20) disconnects, no
AC power is supplied to lighting load 4 from AC power 3 via banked relay 2 again, lighting load 4 is closed (extinguishing).But
In the load control system of present embodiment, circuit is respectively supplied for what is powered from AC power 3 to lighting load 4A, 4B, 4C
It is middle respectively with banked relay 2A, 2B, 2C phase dividually inserted with switch 5A, 5B, 5C.These switches 5A, 5B, 5C e.g. exist
The switch on wall of configuration is embedded in wall, is configured to that contact is opened and closed when being operated operation handle.That is,
Banked relay 2 in an ON state when, operated by switching 5A, 5B, 5C, each lighting load 4A, 4B, 4C are activated respectively
Or it closes.In addition, when being in closure in the contact for switching 5A, 5B, 5C, lighting load 4 is switched on or switched off with banked relay 2
Correspondingly start or close.
Then, illustrate the switching device 1 of present embodiment.
As shown in Figure 1, the switching device 1 of present embodiment has control unit 10, operation portion 11, power supply 12, power supply unit
15th, constant voltage circuit 16 and display unit 17.
Control unit 10 by microcontroller (such as PIC16F1503 of Microchip Technology Inc. etc.) and
The program performed in microcontroller is formed.
Power supply unit 15 is configured to the AC power that will be supplied from AC power 3, and (such as virtual value is 100~120 volts
AC power) be converted to direct current power (such as 24 volts direct current power).Power supply unit 15 is using fixed DC voltage as defeated
Go out voltage and be supplied to power supply 12.This power supply unit 15 is for example realized by the switching power circuit of previous known insulated type.
Constant voltage circuit 16 is configured to the output voltage (24 volts of DC voltages) of power supply unit 15 being reduced to low-voltage (example
Such as 5 volts) DC voltage and make its stabilisation.This constant voltage circuit 16 is for example by previous known buck circuit and three
Terminal adjuster is realized.In addition, in the following description, the output voltage of constant voltage circuit 16 is known as to control voltage.Control
Voltage is input into the power supply terminal of control unit 10.
Operation portion 11 is made of the button switch of instantaneous (momentary) type, and both ends are applied in control voltage, high potential
One end of side is connect with an input port of control unit 10.That is, when operation portion 11 is not operated control unit 10 input terminal
Mouth is high level (control voltage), and when operation portion 11 is operated, the input port of control unit 10 is low level.Therefore, control unit
10 become low level to receive operation signal from operation portion 11 by above-mentioned input port.
Display unit 17 is green for example with the red light emitting diodes (red LED) and luminescent color that luminescent color is red
The green LED (green LED) of color.The cathode of red LED is connect with an output port of control unit 10, red LED
Anode be applied in control voltage.In addition, the cathode of green LED is connect with another output port of control unit 10, green LED
Anode be applied in control voltage.That is, the red LED and green LED of display unit 17 are activated or closed respectively by control unit 10
It closes and (lights or extinguish).
Power supply 12 is made of polarity switching portion 13 and trigger unit 14.It is driven as shown in Figure 2 by H bridges in polarity switching portion 13
Dynamic IC (such as BD6231 of ROHM corporations etc.) is formed.H bridges driving IC has the H bridges electricity for including four field-effect transistors
Road 130 and the controller 131 of control H-bridge circuit 130.H-bridge circuit 130 be entered power supply unit 15 output voltage (24 volts
DC voltage).The leading-out terminal (of a side in two leading-out terminals 132,133 of H-bridge circuit 130 (polarity switching portion 13)
One leading-out terminal) it 132 is connect with the first signal terminal 251 of 21 side of relay coil of banked relay 2, the output of the opposing party
Terminal (second output terminal) 133 is connect with trigger unit 14.Controller 131 is configured to according to two output terminals from control unit 10
The control signal of mouthful (the first output port 135, second output terminal mouth 136) output drives H-bridge circuit 130.That is, from control
In the case that first output port 135 in portion 10 outputs control signal, controller 131 drives H-bridge circuit 130 so that with touching
Second output terminal 133 that hair portion 14 connects applies the output voltage of power supply unit 15 for the polarity (direction) of high potential.In addition,
In the case that the second output terminal mouth 136 of control unit 10 outputs control signal, controller 131 drives H-bridge circuit 130 to cause
It is electric for the output of polarity (direction) the application power supply unit 15 of high potential with the first lead-out terminal 132 being connect with banked relay 2
Pressure.Polarity switching portion 13 is configured to switch the first output port 251 and the second output based on the constant pressure supplied from power supply unit 15
The polarity of voltage between port 252.
As shown in Fig. 2, trigger unit 14 is by multiple (being three in illustrated example) photoelectricity three terminal bidirectional alternating-current switch coupler (days
Language：Off ォ ト ト ラ イ ア ッ Network カ プ ラ) 14A, 14B, 14C composition.Photoelectricity three terminal bidirectional alternating-current switch coupler 14A, 14B,
14C has light-emitting component (LED) 140 and photoelectricity three terminal bidirectional alternating-current switch 141.The anode (anode) of light-emitting component 140 is applied
Add control voltage (DC5V), respective different three output port point from control unit 10 of the cathode (cathode) of light-emitting component 140
It does not connect.That is, for each photoelectricity three terminal bidirectional alternating-current switch coupler 14A, 14B, 14C, when each output of control unit 10
When port becomes low level, light-emitting component 140 shines, and photoelectricity three terminal bidirectional alternating-current switch 141 is triggered and is connected.Once photoelectricity
Three terminal bidirectional alternating-current switch 141 becomes conducting state, as long as having electric current flowing in photoelectricity three terminal bidirectional alternating-current switch 141, just with
The level of the output port of control unit 10 independently maintains the conducting state of photoelectricity three terminal bidirectional alternating-current switch 141.In photoelectricity three
It, can be with the polarity (direction) that is switched by polarity switching portion 13 from power supply unit during end two-way exchange switch 141 is on
15 pairs of banked relays 2 supply exciting current.
Then, illustrate the appearance of switching device 1 and construction with reference to Fig. 3 and Fig. 4.
The switching device 1 of present embodiment be embedded in the state of installing frame 200 is installed on be configured at construction material (such as
Wall).
Installing frame 200 is e.g. special in wide handle (wide handle) shape of Japanese Industrial Standards' Plays switch
Installing frame.The fenestra of rectangle is provided in the centre of installing frame 200, the main body 100 of switching device 1 is embedded in the fenestra.
On the side wall positioned at the left and right sides of fenestra, it is each provided with three respectively along long side direction with two embedded holes 201 for one group
Group.In addition, the both sides up and down in fenestra are respectively arranged with installation sheet 202.In each installation sheet 202, centre is provided with confession
The slot hole 203 that box is inserted with screw is respectively arranged with circular screw insertion hole 204 in the left and right sides of slot hole 203.This peace
It 200 is previous known to frame up, and is screwed in the switch enclosure of embedment wall using box or is consolidated using clamping metal fittings
Due to wall slab (plasterboard etc.).
Switching device 1 is made of the main body 100 and operation handle 110 of rectangular box, and the main body 100 is by forming synthetic resin
Body is formed, which is installed on the front surface of main body 100 in a manner of it can shake.It is accommodated in main body 100 more
Open printed circuit board, multiple quick connection terminals (no screw terminal) etc..Be equipped on these printed circuit boards form Fig. 1 and
The circuit block (microcontroller, H bridges driving IC etc.) of control unit 10 shown in Fig. 2, operation portion 11, power supply 12 etc..In addition,
The left part of foremost printed circuit board is equipped with display unit 17 (red LED and green LED).Also, in foremost print
The central portion of printed circuit board is equipped with operation portion 11 (button switch).
The fenestra 101 of rectangle is formed through at the position opposite with display unit 17 in the antetheca of main body 100.It is that is, aobvious
Show the red front for being irradiated to main body 100 by fenestra 101 with green light that portion 17 is sent out.
In addition, at position opposite with operation portion 11 in the antetheca of main body 100, T is provided in a manner of flexible
The operating sheet 102 of font.That is, when operating sheet 102 is rearward bent, it is installed on the behaviour of foremost printed circuit board
Make portion 11 (button switch) to be switched on by operating sheet 102.
Also, at the end in the left side of the antetheca of main body 100, it is abreast provided with a pair of of axle portion 103 in the up-down direction.
The fore-end of these axle portions 103 is formed as cylindric, and the bearing portion of operation handle 110 is installed on this in a manner of it can rotate
A little axle portions 103.
In addition, in the side of the left and right sides of main body 100, the pawl 104 chimeric with the embedded hole 201 of installing frame 200 is set
It is set to and arranges at spaced intervals along the vertical direction respectively.
As shown in figure 3, operation handle 110 is formed as the rectangular plate-like of lengthwise by synthetic resin material.In operation handle 110
The centre of left end of rear surface be provided with above-mentioned bearing portion.Moreover, bearing portion is installed on axle portion 103, thus operation handle
110 can be shaken relative to main body 100 with axle portion 103 for fulcrum.That is, when being carried out from front to operation handle 110
During pressing operation, operation handle 110 is rearward shaken with axle portion 103 for fulcrum, and the operating sheet 102 for making main body 100 is rearward curved
It is bent and connect operation portion 11.
In addition, the centre in the left end of operation handle 110 is provided with the fenestra 111 of rectangle.Also, in the fenestra 111
In be embedded with the lid 112 formed by the synthetic resin material (such as acrylic resin etc.) with translucency.That is, display unit 17 is sent out
After the fenestra 101 that the light gone out passes through main body 100, irradiated forwards by the fenestra 111 and lid 112 of operation handle 110.
Then, the action of the switching device 1 of present embodiment is illustrated with reference to the sequence diagram of Fig. 5 and Fig. 1, Fig. 2.In addition,
Horizontal axis in Fig. 5 represents that time t, the longitudinal axis represent voltage V.In addition, the A in Fig. 5 represents first output terminal in polarity switching portion 13
The output voltage of son 132, the B in Fig. 5 represent the output voltage of second output terminal 133 in polarity switching portion 13.C in Fig. 5,
D, E represents that the input voltage of three photoelectricity three terminal bidirectional alternating-current switch couplers 14A, 14B, 14C are (i.e. defeated from control unit 10 respectively
The voltage entered), F, G, H represent to be applied to respectively (i.e. the first signal between the signal terminal of three banked relays 2A, 2B, 2C
Between terminal 251 and second signal terminal 252) signal voltage.
It is in connecting here, setting whole switches 5, and whole banked relays 2 is in disconnecting.Therefore, at this
Under state, whole lighting loads 4 is in extinguishing.In addition, in switching device 1, control unit 10 is by only lighting green LED
Show display unit 17, whole lighting loads 4 is in extinguishing.
When operation handle 110 is by carry out pressing operation in the above-described state, control unit 10 is received from operation portion 11 and is operated
Signal.The 10 control polarity switching part 13 of control unit of operation signal is received to be switched to first lead-out terminal 132 as anode
And the polarity (t=t0) with second output terminal 133 for cathode.Then, control unit 10 makes photoelectricity three terminal bidirectional alternating-current switch coupling
The input terminal of clutch 14A is low level, is thus applied between the signal terminal of banked relay 2A with relay coil 21
Side is positive signal voltage (24 volts of DC voltages).That is, control unit 10 will enter into the exchange of photoelectricity three terminal bidirectional
The voltage (with reference to the C of Fig. 5) of switch coupler 14A is switched to low level from high level.Photoelectricity three terminal bidirectional alternating-current switch as a result,
The photoelectricity three terminal bidirectional alternating-current switch 141 of coupler 14A becomes being connected.As a result, signal voltage (24 volts of DC voltages)
So that the first signal terminal 251 is applied to the first signal end of banked relay 2A for the mode of high potential (with reference to the F of Fig. 5)
Between son 251 and second signal terminal 252 (t=t1).
In banked relay 2A, relay coil 21 is flowed through and exciting current by being applied in above-mentioned signal voltage, because
This main contacts 20 is connected and auxiliary contact 22 (i.e. the public terminals of auxiliary contact 22) are switched to 24 side of diode.It is as long as distant
It controls relay 2A (main contacts 20) to connect, just lighting load 4A is supplied via banked relay 2A from AC power 3 and is exchanged
Electric power and lighting load 4A is lighted.In addition, when the auxiliary contact 22 (i.e. the public terminals of auxiliary contact 22) of banked relay 2A
When being switched to 24 side of diode, there is no exciting current flowing, therefore the light of photoelectricity three terminal bidirectional alternating-current switch coupler 14A
Electric three terminal bidirectional alternating-current switch 141 ends.In this way, the photoelectricity three terminal bidirectional of photoelectricity three terminal bidirectional alternating-current switch coupler 14A is handed over
The auxiliary contact 22 of stream switch 141 and banked relay 2A interlock, as a result, the main contacts 20 with banked relay 2A connects
It is dynamic.That is, control unit 10 applies banked relay 2A the signal voltage (with reference to the F of Fig. 5) (t=t1 ') of pulse type.Cause
And control unit 10 controls power supply 12 so that power supply 12 is only switched to from opening state in not shorter than banked relay 2A and closes
It is supplied electric power in the short time of the time of conjunction state.
After banked relay 2A is connected, control unit 10 makes the input of photoelectricity three terminal bidirectional alternating-current switch coupler 14B
Terminal is low level, is thus applied between the signal terminal of banked relay 2B using 21 side of relay coil as positive signal electricity
It presses (24 volts of DC voltages).That is after banked relay 2A is connected, control unit 10 will enter into three end of photoelectricity
The voltage (with reference to the D of Fig. 5) of two-way exchange switch coupler 14B is switched to low level from high level.Photoelectricity three terminal bidirectional as a result,
The photoelectricity three terminal bidirectional alternating-current switch 141 of alternating-current switch coupler 14B becomes being connected.(24 volts straight as a result, signal voltage
Galvanic electricity pressure) so that the first signal terminal 251 is applied to the of banked relay 2B for the mode of high potential (with reference to the G of Fig. 5)
Between one signal terminal 251 and second signal terminal 252 (t=t2).
In banked relay 2B, relay coil 21 is flowed through and exciting current by being applied in above-mentioned signal voltage, because
This main contacts 20 is connected and auxiliary contact 22 (i.e. the public terminals of auxiliary contact 22) are switched to 24 side of diode.It is as long as distant
It controls relay 2B (main contacts 20) to connect, just lighting load 4B is supplied via banked relay 2B from AC power 3 and is exchanged
Electric power and lighting load 4B is lighted.In addition, when the auxiliary contact 22 (i.e. the public terminals of auxiliary contact 22) of banked relay 2B
When being switched to 24 side of diode, there is no exciting current flowing, therefore the light of photoelectricity three terminal bidirectional alternating-current switch coupler 14B
Electric three terminal bidirectional alternating-current switch 141 ends.In this way, the photoelectricity three terminal bidirectional of photoelectricity three terminal bidirectional alternating-current switch coupler 14B is handed over
The auxiliary contact 22 of stream switch 141 and banked relay 2B interlock, as a result, the main contacts 20 with banked relay 2B connects
It is dynamic.That is, control unit 10 also applies the signal electricity of pulse type for banked relay 2B in the same manner as banked relay 2A
Pressure (with reference to the G of Fig. 5) (t=t2 ').Thus, control unit 10 control power supply 12 so that power supply 12 only not shorter than remote control after
Electric appliance 2B is switched in the short time of the time of closed state from opening state and supplies electric power.
After banked relay 2B is connected, control unit 10 makes the input of photoelectricity three terminal bidirectional alternating-current switch coupler 14C
Terminal is low level, is thus applied between the signal terminal of banked relay 2C using 21 side of relay coil as positive signal electricity
It presses (24 volts of DC voltages).That is, after banked relay 2B is connected, control unit 10 will enter into three end of photoelectricity
The voltage (with reference to the E of Fig. 5) of two-way exchange switch coupler 14C is switched to low level from high level.Photoelectricity three terminal bidirectional as a result,
The photoelectricity three terminal bidirectional alternating-current switch 141 of alternating-current switch coupler 14C becomes being connected.(24 volts straight as a result, signal voltage
Galvanic electricity pressure) so that the first signal terminal 251 is applied to the of banked relay 2C for the mode of high potential (with reference to the H of Fig. 5)
Between one signal terminal 251 and second signal terminal 252 (t=t3).
In banked relay 2C, relay coil 21 is flowed through and exciting current by being applied in above-mentioned signal voltage, because
This main contacts 20 is connected and auxiliary contact 22 (i.e. the public terminals of auxiliary contact 22) are switched to 24 side of diode.It is as long as distant
It controls relay 2C (main contacts 20) to connect, just lighting load 4C is supplied via banked relay 2C from AC power 3 and is exchanged
Electric power and lighting load 4C is lighted.In addition, when the auxiliary contact 22 (i.e. the public terminals of auxiliary contact 22) of banked relay 2C
When being switched to 24 side of diode, there is no exciting current flowing, therefore the light of photoelectricity three terminal bidirectional alternating-current switch coupler 14C
Electric three terminal bidirectional alternating-current switch 141 ends.In this way, the photoelectricity three terminal bidirectional of photoelectricity three terminal bidirectional alternating-current switch coupler 14C is handed over
The auxiliary contact 22 of stream switch 141 and banked relay 2C interlock, as a result, the main contacts 20 with banked relay 2C connects
It is dynamic.That is, control unit 10 also applies the letter of pulse type for banked relay 2C in the same manner as banked relay 2A, 2B
Number voltage (with reference to the H of Fig. 5).Thus, control unit 10 controls power supply 12 so that power supply 12 be not only shorter than banked relay
2C is switched in the short time of the time of closed state from opening state and supplies electric power.
Also, control unit 10 is after whole banked relay 2 is connected, and control polarity switching part 13 is first defeated to make
It is same potential (t=t4) to go out terminal 132 with second output terminal 133.In addition, control unit 10 only lights red LED, thus make
Display unit 17 shows that whole lighting loads 4 is lighted.
When operation handle 110 is by carry out pressing operation in the state of being in lighting in whole lighting loads 4, control
Portion 10 receives operation signal from operation portion 11.Receive the 10 control polarity switching part 13 of control unit of operation signal be switched to
Second output terminal 133 is anode and the polarity (t=t5) with first lead-out terminal 132 for cathode.Then, control unit 10 makes light
The input terminal of electric three terminal bidirectional alternating-current switch coupler 14A be low level, thus to the signal terminal of banked relay 2A it
Between apply using 21 side of relay coil for bear signal voltage (24 volts of DC voltages).That is, control unit 10 will be defeated
The voltage (with reference to the C of Fig. 5) entered to photoelectricity three terminal bidirectional alternating-current switch coupler 14A is switched to low level from high level.As a result,
The photoelectricity three terminal bidirectional alternating-current switch 141 of photoelectricity three terminal bidirectional alternating-current switch coupler 14A becomes being connected.As a result, signal is electric
Pressure (24 volts of DC voltages) is so that second signal terminal 252 is applied to remote control for the mode of high potential (with reference to the F of Fig. 5)
Between the first signal terminal 251 and second signal terminal 252 of relay 2A (t=t6).
In banked relay 2A, relay coil is flowed through and reversed exciting current by being applied in above-mentioned signal voltage
21, therefore main contacts 20 disconnects and auxiliary contact 22 (i.e. the public terminals of auxiliary contact 22) are switched to 23 side of diode.
As long as banked relay 2A (main contacts 20) disconnect, just no longer from AC power 3 to lighting load 4A supply AC power and
Lighting load 4A extinguishes.In addition, the auxiliary contact 22 (i.e. the public terminals of auxiliary contact 22) as banked relay 2A are switched
During to 23 side of diode, there is no reversed exciting currents to flow, therefore the light of photoelectricity three terminal bidirectional alternating-current switch coupler 14A
Electric three terminal bidirectional alternating-current switch 141 ends.In this way, the photoelectricity three terminal bidirectional of photoelectricity three terminal bidirectional alternating-current switch coupler 14A is handed over
The auxiliary contact 22 of stream switch 141 and banked relay 2A interlock, as a result, the main contacts 20 with banked relay 2A connects
It is dynamic.That is, control unit 10 applies banked relay 2A the signal voltage (with reference to the F of Fig. 5) (t=t6 ') of pulse type.Cause
And control unit 10 controls power supply 12 so that power supply 12 is only switched to from closed state in not shorter than banked relay 2A and beats
It is supplied electric power in the short time of the time of open state.
After banked relay 2A is disconnected, control unit 10 makes the input of photoelectricity three terminal bidirectional alternating-current switch coupler 14B
Terminal is low level, is thus applied between the signal terminal of banked relay 2B using 21 side of relay coil as negative signal electricity
It presses (24 volts of DC voltages).That is, after banked relay 2A is disconnected, control unit 10 will enter into three end of photoelectricity
The voltage (with reference to the D of Fig. 5) of two-way exchange switch coupler 14B is switched to low level from high level.Photoelectricity three terminal bidirectional as a result,
The photoelectricity three terminal bidirectional alternating-current switch 141 of alternating-current switch coupler 14B becomes being connected.(24 volts straight as a result, signal voltage
Galvanic electricity pressure) so that second signal terminal 252 is applied to the of banked relay 2B for the mode of high potential (with reference to the G of Fig. 5)
Between one signal terminal 251 and second signal terminal 252 (t=t7).
In banked relay 2B, relay coil is flowed through and reversed exciting current by being applied in above-mentioned signal voltage
21, therefore main contacts 20 disconnects and auxiliary contact 22 (i.e. the public terminals of auxiliary contact 22) are switched to 23 side of diode.
As long as banked relay 2B (main contacts 20) disconnect, just no longer from AC power 3 to lighting load 4B supply AC power and
Lighting load 4B extinguishes.In addition, the auxiliary contact 22 (i.e. the public terminals of auxiliary contact 22) as banked relay 2B are switched
During to 23 side of diode, there is no reversed exciting currents to flow, therefore the light of photoelectricity three terminal bidirectional alternating-current switch coupler 14B
Electric three terminal bidirectional alternating-current switch 141 ends.In this way, the photoelectricity three terminal bidirectional of photoelectricity three terminal bidirectional alternating-current switch coupler 14B is handed over
The auxiliary contact 22 of stream switch 141 and banked relay 2B interlock, as a result, the main contacts 20 with banked relay 2B connects
It is dynamic.That is, control unit 10 also applies the signal electricity of pulse type for banked relay 2B in the same manner as banked relay 2A
Pressure (with reference to the G of Fig. 5) (t=t7 ').Thus, control unit 10 control power supply 12 so that power supply 12 only not shorter than remote control after
Electric appliance 2B is supplied electric power out of closed state switching is in an open state the short time of time.
After banked relay 2B is disconnected, control unit 10 makes the input of photoelectricity three terminal bidirectional alternating-current switch coupler 14C
Terminal is low level, is thus applied between the signal terminal of banked relay 2C using 21 side of relay coil as negative signal electricity
It presses (24 volts of DC voltages).That is, control unit 10 will enter into photoelectricity three terminal bidirectional alternating-current switch coupler 14C's
Voltage (with reference to the E of Fig. 5) is switched to low level from high level.The photoelectricity of photoelectricity three terminal bidirectional alternating-current switch coupler 14C as a result,
Three terminal bidirectional alternating-current switch 141 becomes being connected.As a result, signal voltage (24 volts of DC voltages) is so that second signal terminal
252 be that the mode of high potential (with reference to the H of Fig. 5) is applied to the first signal terminal 251 and second signal of banked relay 2C
Between terminal 252 (t=t8).
In banked relay 2C, relay coil is flowed through and reversed exciting current by being applied in above-mentioned signal voltage
21, therefore main contacts 20 disconnects and auxiliary contact 22 (i.e. the public terminals of auxiliary contact 22) are switched to 23 side of diode.
As long as banked relay 2C (main contacts 20) disconnect, just no longer from AC power 3 to lighting load 4C supply AC power and
Lighting load 4C extinguishes.In addition, the auxiliary contact 22 (i.e. the public terminals of auxiliary contact 22) as banked relay 2C are switched
During to 23 side of diode, there is no reversed exciting currents to flow, therefore the light of photoelectricity three terminal bidirectional alternating-current switch coupler 14C
Electric three terminal bidirectional alternating-current switch 141 ends.In this way, the photoelectricity three terminal bidirectional of photoelectricity three terminal bidirectional alternating-current switch coupler 14C is handed over
The auxiliary contact 22 of stream switch 141 and banked relay 2C interlock, as a result, the main contacts 20 with banked relay 2C connects
It is dynamic.That is, control unit 10 also applies the letter of pulse type for banked relay 2C in the same manner as banked relay 2A, 2B
Number voltage (with reference to the H of Fig. 5).Thus, control unit 10 controls power supply 12 so that power supply 12 be not only shorter than banked relay
2C is supplied electric power out of closed state switching is in an open state the short time of time.
Also, control unit 10 is after whole banked relay 2 is disconnected, and control polarity switching part 13 is first defeated to make
It is same potential (t=t9) to go out terminal 132 with second output terminal 133.In addition, control unit 10 only lights green LED, thus make
Display unit 17 shows that whole lighting loads 4 is extinguished.
Here, signal terminal (the signal end being connect with relay coil 21 of a side of each banked relay 2A, 2B, 2C
Son) it is connect with the public terminal (first lead-out terminal 132 in polarity switching portion 13) of switching device 1.In addition, each banked relay
The signal terminal (signal terminal being connect with diode 23,24) of the opposing party of 2A, 2B, 2C respectively with each photoelectricity of trigger unit 14
The leading-out terminal connection of three terminal bidirectional alternating-current switch coupler 14A, 14B, 14C.
But there is a possibility that following：Operation error during due to wiring installation, such as the public terminal of switching device 1
Mis-wired to some photoelectricity three terminal bidirectional alternating-current switch coupler 14A, 14B, 14C of trigger unit 14 leading-out terminal.If
Switching device 1 is acted in the state of mis-wired like this, it is likely that excessive electric current is caused to flow through trigger unit 14 and pole
Property switching part 13 and switching device 1 breaks down.That is, switching device 1 public terminal and trigger unit 14 it is a certain
The resistance value of the circuit connected between the leading-out terminal of a photoelectricity three terminal bidirectional alternating-current switch coupler 14A, 14B, 14C is than forming
The resistance value of the conductive component of banked relay 2 is low, therefore excessive electric current is caused to flow through power supply 12.
In contrast, it is more than upper limit value that the power supply 12 in the switching device 1 of present embodiment, which is configured to when output current,
When stop output current supply.That is, the H bridges driving IC in polarity switching portion 13 is formed in order to protect IC from earth current, short
The abnormal currents such as road electric current injure, and are built-in with overcurrent protection circuit 134 (with reference to Fig. 2).Then, from first lead-out terminal
132 and second output terminal son 133 output electric current be more than upper limit value in the case of, from overcurrent protection circuit 134 to controller
131 output stop signals.For controller 131 when receiving above-mentioned stop signal, the whole field-effects for making H-bridge circuit 130 are brilliant
Body pipe ends the supply to stop output current.As a result, excessive electric current will not flow continuously through switching device 1, therefore can
Inhibit to cause the generation of the failure of switching device 1 because of mistake of wiring etc..In addition it is also possible to instead of being built in H bridges driving IC's
Overcurrent protection circuit 134, and have the supply for stopping output current when output current is more than upper limit value in power supply 12
Overcurrent protection circuit.
As described above, the switching device 1 of present embodiment is controlled to being used to (shine from power supply (AC power 3) to load
4) the switching device of banked relay 2 being opened and closed for circuit that bright load is powered.The switching device 1 of present embodiment has
It is standby：Power supply unit 15 generates the electric power of the driving of banked relay 2；Power supply 12, it is above-mentioned by being generated by power supply unit 15
Power supply is to banked relay 2；And operation portion 11, accept operation input.In addition, the switching device 1 of present embodiment
Has control unit 10, the aforesaid operations input which is accepted with operation portion 11 is accordingly controlled to be carried out by power supply 12
Above-mentioned electric power supply.Power supply 12 is configured to stop when output current is more than defined upper limit value the confession of output current
It gives.
In addition, the load control system of present embodiment has：Banked relay 2, to being used for from power supply (AC power
3) being opened and closed for circuit to load (lighting load 4) power supply；And switching device 1, control banked relay 2.
The switching device 1 and load control system of present embodiment are formed as described above, and excessive electric current will not be held
Switching device 1 is crossed in afterflow, therefore can inhibit to cause the generation of the failure of switching device 1 because of mistake of wiring etc..
According to embodiments described above, it is apparent that the switching device (1) of first method according to the present invention is
It controls to from power supply (AC power 3) to the banked relay (2) being opened and closed for circuit of load (lighting load 4) power supply
Switching device.Switching device (1) has：Power supply unit (15) generates the electric power of the driving of above-mentioned banked relay (2)；For
Electric portion (12), will be by the above-mentioned power supply that above-mentioned power supply unit (15) generates to above-mentioned banked relay (2)；And operation portion
(11), operation input is accepted.Switching device (1) has control unit (10), the control unit (10) and aforesaid operations portion (11) institute
The aforesaid operations input accepted accordingly controls the supply of the above-mentioned electric power carried out by above-mentioned power supply (12).Above-mentioned power supply
(12) it is configured to stop when output current is more than defined upper limit value the supply of output current.
In the switching device (1) of second method according to the present invention, in first method, above-mentioned power supply (12) tool
It is ready for use on a pair of of signal terminal of above-mentioned banked relay (2) (the first signal terminal 251, second signal terminal 252) respectively
Above-mentioned a pair of output terminals (first lead-out terminal 132, second output terminal 133) of electrical connection.Above-mentioned power supply (12) has
Controller (131), the controller (131) pass through to above-mentioned a pair of output terminals (first lead-out terminal 132, second output terminal
133) output voltage for applying above-mentioned power supply unit (15) between comes from above-mentioned a pair of output terminals (first lead-out terminal 132, second
Leading-out terminal 133) the above-mentioned output current of supply.Above-mentioned power supply (12) has overcurrent protection circuit (134).Above-mentioned overcurrent
Protection circuit (134) be configured to when above-mentioned output current be more than it is above-mentioned as defined in upper limit value when to above controller (131) export
Stop signal.Above controller (131) is configured to stop when receiving above-mentioned stop signal the supply of above-mentioned output current.
In the switching device (1) of Third Way according to the present invention, in second method, above-mentioned power supply unit (15) structure
It is used as above-mentioned output voltage as fixed DC voltage is exported.
In the switching device (1) of fourth way according to the present invention, in second method or Third Way, above-mentioned rule
Fixed upper limit value is above-mentioned a pair of of signal terminal (first signal terminal 251, second of the resistance value than above-mentioned banked relay (2)
Signal terminal 252) between the low circuit of resistance be connected to above-mentioned a pair of output terminals (first lead-out terminal 132, second export
Terminal 133) between in the case of above-mentioned output current value more than.
The load control system of 5th mode according to the present invention has：Banked relay (2), to being used for from power supply
(AC power 3) is opened and closed to load (lighting load 4) power supply for circuit；And appointing in first method~fourth way
The switching device (1) of one mode, control banked relay (2).
Switching device (1) and load control system are formed as described above, therefore excessive electric current will not flow continuously through
Switching device (1), therefore can inhibit to cause the generation of the failure of switching device (1) because of mistake of wiring etc..
Claims (4)
- It, should 1. a kind of switching device controls the banked relay being opened and closed for circuit to being used to power to the load from power supply Switching device is characterized in that having：Power supply unit generates the electric power of the driving of above-mentioned banked relay；Power supply, will be by the above-mentioned power supply that above-mentioned power supply unit generates to above-mentioned banked relay；Operation portion accepts operation input；AndControl unit, the aforesaid operations input accepted with aforesaid operations portion accordingly control carried out by above-mentioned power supply it is above-mentioned The supply of electric power,Wherein, above-mentioned power supply is configured to stop when output current is more than defined upper limit value the supply of output current,Also, above-mentioned power supply has：The a pair of output terminals being electrically connected for a pair of of signal terminal with above-mentioned banked relay；Controller, by applying the output voltage of above-mentioned power supply unit between above-mentioned a pair of output terminals come defeated from above-mentioned a pair Go out the above-mentioned output current of terminal feeding；AndOvercurrent protection circuit,Wherein, above-mentioned overcurrent protection circuit be configured to when above-mentioned output current be more than it is above-mentioned as defined in upper limit value when to above-mentioned control Device processed exports stop signal,Above controller is configured to stop when receiving above-mentioned stop signal the supply of above-mentioned output current.
- 2. switching device according to claim 1, which is characterized in thatAbove-mentioned power supply unit, which is configured to export fixed DC voltage, is used as above-mentioned output voltage.
- 3. switching device according to claim 1 or 2, which is characterized in thatUpper limit value as defined in above-mentioned is the low resistance value of the resistance value with the conductive component than forming above-mentioned banked relay Circuit be connected between above-mentioned a pair of output terminals in the case of above-mentioned output current value more than.
- 4. a kind of load control system, which is characterized in that have：Banked relay, to being used to be opened and closed for circuit from what power supply powered to the load；AndSwitching device according to any one of claims 1 to 3 controls above-mentioned banked relay.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014117783A JP2015230879A (en) | 2014-06-06 | 2014-06-06 | Switch device and load control system |
| JP2014-117783 | 2014-06-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105307318A CN105307318A (en) | 2016-02-03 |
| CN105307318B true CN105307318B (en) | 2018-06-19 |
Family
ID=54887549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510106993.5A Active CN105307318B (en) | 2014-06-06 | 2015-03-11 | Switching device and load control system |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2015230879A (en) |
| CN (1) | CN105307318B (en) |
| TW (1) | TWI545609B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6967733B2 (en) * | 2017-05-16 | 2021-11-17 | パナソニックＩｐマネジメント株式会社 | Power storage system and stop control system |
| CN109756414A (en) * | 2017-11-03 | 2019-05-14 | 福州百益百利自动化科技有限公司 | Quick direct dialing system and method based on social networks |
| JP7117553B2 (en) * | 2018-01-29 | 2022-08-15 | パナソニックＩｐマネジメント株式会社 | Switching devices and switching systems |
| US11935712B2 (en) * | 2018-07-31 | 2024-03-19 | Panasonic Intellectual Property Management Co., Ltd. | Control system and interrupter system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2134731Y (en) * | 1992-06-15 | 1993-05-26 | 邓云章 | Protective means for solid-state relay |
| TW200723924A (en) * | 2005-10-26 | 2007-06-16 | Matsushita Electric Works Ltd | Operation switch wiring instrument |
| TWM335082U (en) * | 2007-12-06 | 2008-06-21 | Qing-Zhu Guo | Over-current instantaneous shutdown protection device |
| JP2011249139A (en) * | 2010-05-26 | 2011-12-08 | Panasonic Electric Works Co Ltd | Remote control relay |
| CN203445850U (en) * | 2013-06-08 | 2014-02-19 | 天津克莱沃德科技有限公司 | Solid state relay drive circuit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH042936U (en) * | 1990-04-23 | 1992-01-10 | ||
| JP3818038B2 (en) * | 2000-09-26 | 2006-09-06 | 松下電工株式会社 | Function addition device for load control system |
-
2014
- 2014-06-06 JP JP2014117783A patent/JP2015230879A/en active Pending
-
2015
- 2015-02-17 TW TW104105540A patent/TWI545609B/en active
- 2015-03-11 CN CN201510106993.5A patent/CN105307318B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2134731Y (en) * | 1992-06-15 | 1993-05-26 | 邓云章 | Protective means for solid-state relay |
| TW200723924A (en) * | 2005-10-26 | 2007-06-16 | Matsushita Electric Works Ltd | Operation switch wiring instrument |
| TWM335082U (en) * | 2007-12-06 | 2008-06-21 | Qing-Zhu Guo | Over-current instantaneous shutdown protection device |
| JP2011249139A (en) * | 2010-05-26 | 2011-12-08 | Panasonic Electric Works Co Ltd | Remote control relay |
| CN203445850U (en) * | 2013-06-08 | 2014-02-19 | 天津克莱沃德科技有限公司 | Solid state relay drive circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI545609B (en) | 2016-08-11 |
| CN105307318A (en) | 2016-02-03 |
| JP2015230879A (en) | 2015-12-21 |
| TW201603092A (en) | 2016-01-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105307318B (en) | Switching device and load control system | |
| CN105321769B (en) | Switching device and load control system | |
| CN104078923B (en) | Over under-voltage protection circuit and lighting device | |
| CN106488605A (en) | Light output control device, illuminator and facilities and equipment | |
| CN105282915B (en) | Switching device and load control system | |
| TWI604753B (en) | Switch apparatus and switch system | |
| US20180255624A1 (en) | Hybrid Dimming Controller With Multi-Class Outputs | |
| CN105873301A (en) | Semi-wave shunting type single-live-wire LED (Light Emitting Diode) lamp double-control electronic switch | |
| CN105874884A (en) | Lighting system, including switch having 2 power levels | |
| US7982410B2 (en) | Electronic dimmer circuit | |
| CN209088910U (en) | A kind of PNP or NPN input signal independence switch type power amplification plate | |
| US6091166A (en) | DC solid state relay | |
| CN210805621U (en) | Digital quantity wet output relay module | |
| CN201523129U (en) | Full-shutdown computer socket | |
| CN105657940B (en) | The control system of electric loading | |
| WO2014177340A3 (en) | Converter | |
| CN107078976A (en) | Communication system and dispensing device | |
| CN110176883A (en) | DC motor control circuit | |
| JP4060328B2 (en) | Power supply, power switch device, sequence board | |
| US10499468B1 (en) | Method for step dimming | |
| CN107493624B (en) | The program-controlled voice switching circuit of LED guardrail tube | |
| JP2016110839A (en) | Dc switch for wall | |
| CN206370363U (en) | One kind three opens double control switch | |
| CN111029213A (en) | Digital quantity wet output relay module | |
| KR101695202B1 (en) | Leakage Current Cut-off Device for Electrical Load |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |