CN203387164U - Anti-reflux device and solar cell protection device - Google Patents
Anti-reflux device and solar cell protection device Download PDFInfo
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- CN203387164U CN203387164U CN201320451535.1U CN201320451535U CN203387164U CN 203387164 U CN203387164 U CN 203387164U CN 201320451535 U CN201320451535 U CN 201320451535U CN 203387164 U CN203387164 U CN 203387164U
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- 230000000151 anti-reflux effect Effects 0.000 title abstract 2
- 230000005284 excitation Effects 0.000 claims abstract description 7
- 230000005347 demagnetization Effects 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 26
- 239000011159 matrix material Substances 0.000 claims description 22
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 2
- 239000000758 substrate Substances 0.000 description 18
- 230000015572 biosynthetic process Effects 0.000 description 16
- 229910052742 iron Inorganic materials 0.000 description 10
- 210000002445 nipple Anatomy 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000002411 adverse Effects 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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- 230000000630 rising effect Effects 0.000 description 1
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Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/565—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor
- G05F1/569—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
Damage to a diode can be effectively avoided through even a simple structure. The anti-reflux device has contact switch portions having contacts and a diode (29), wherein on-off of the contacts are realized through excitation or demagnetization of an electro-magnetic block (40) having a coil (41), the coil (41) is connected in series with the diode (29), and each contact switch portion is connected in parallel with the diode (29).
Description
Technical field
The present invention relates to anti-backflow device and solar cell protective device.
Background technology
In the past, as anti-backflow device, known had diode and a polarized relay (for example,, with reference to patent documentation 1).Polarized relay be by coil with when the contact that becomes closure state when this coil midstream has electric current be connected in parallel obtain.Diode and coil are connected in series.In addition, coil, diode and contact are connected in parallel.And, by this structure, if electric current with respect to diode when positive direction flows, coil magnetization and closing contact, the energy loss at twin zener dioder place.In addition, even electric current will flow in the reverse direction with respect to diode, contact also can maintain the state of disconnection, prevents the adverse current of electric current.
But in described anti-backflow device in the past, because the surface attachment in contact has foreign matter etc., electric current flows in positive direction with respect to diode, although the original closing of contact, also poor flow may occur.In this case, can form still mobile state on diode of large electric current, produce energy consumption, according to circumstances cause sometimes damaging.
In addition, in the past as the solar cell protective device, known following formation, this formation comprises: a plurality of solar battery modules are connected in parallel itself and load and make it to this load supplying; The counterflow-preventing diode, be connected in series between described load and each solar battery module; Detecting unit, detect the falling quantity of voltages and then the detection that are produced by each counterflow-preventing diode and have abnormal solar battery module; Radiator, carry out the heat radiation of described each counterflow-preventing diode; Described each counterflow-preventing diode centralized configuration is in central authorities' (for example,, with reference to patent documentation 2) of described radiator.
But, in described solar cell protective device in the past, must detect the falling quantity of voltages produced by the counterflow-preventing diode, but its detection is more difficult.In addition, in order correctly to detect, the radiator shed for the heat that makes to be produced by the counterflow-preventing diode is necessary.
The prior art document
Patent documentation 1: Japanese documentation Unexamined Patent 6-70484 communique;
Patent documentation 2: No. 3439891 communique of Japanese documentation special permission.
Summary of the invention
The object of the invention is to provide a kind of anti-backflow device and solar cell protective device, even if simple, forms, and also can prevent effectively the damage of diode.
As for solving the method for above-mentioned problem, the present invention is anti-backflow device, comprising:
Contact switch section with contact, described contact carries out excitation by the electromagnetic block to having coil or switch is carried out in demagnetization; With
Diode;
Described contact switch section has a plurality of, and described coil and described diode are connected in series, and described each contact switch section is connected with described diodes in parallel.
By above-mentioned formation, even for example foreign matter is attached to contact surface, owing to thering is a plurality of contact switch section, can reduce the bad occurrence probability of state adhered to due to foreign matter.
Preferably, also there is the matrix that disposes relay connection terminal and outlet side splicing ear; Described relay connection terminal and described outlet side splicing ear are set up in parallel, and described diode and described contact switch section are connected in parallel between described relay connection terminal and described outlet side splicing ear.
By such formation, because relay connection terminal and outlet side splicing ear are set up in parallel, easily carry out the connection of diode or contact switch section.
Preferably, described contact switch section comprises contact block;
But described contact block comprises a plurality of fixed contact pieces that are electrically connected to described outlet side splicing ear and the moving contacting plate be electrically connected to described relay connection terminal;
Described fixed contact piece has fixed contact, but described moving contacting plate has moving contact, and the fixed contact of described moving contact and described each fixed contact piece is relative in mode that can contact separation.
By such formation, only by being set up in parallel each contact chip so that become can contact separation in contact, thereby can form a plurality of contact switch section of relative diodes in parallel.In addition, due to fixed contact is disposed to outlet side, even apply high-tension situation to outlet side, can reduce the possibility that makes the moving contact misoperation because of the impact of electrostatic attraction etc.
Preferably, also dispose the input side splicing ear on described matrix;
Described electromagnetic block forms coil winding be arranged on described matrix in iron core via spool, and the lead-out wire of a side of described coil is connected in to described relay connection terminal, and the lead-out wire of the opposite side of described coil is connected in to described input side splicing ear.
By such formation, only, by electromagnetic block being installed on substrate and each lead-out wire of coil being connected to relay connection terminal and input side splicing ear, just can make contact switch section drive.
Preferably, described contact switch section has more than three, and in this contact switch section, at least one is not connected with described diodes in parallel and as monitoring output.
By such formation, by only appending the simple formation change of contact switch section, can monitor simply the use state.
In addition, as for solving the means of described problem, the anti-backflow device of described formation is connected between electrical storage device and solar cell.
By such formation, if it is large to flow through the magnitude of current of diode, due to conducting contact switch section, in diode, electric current flows to end, and caloric value that can twin zener dioder, without other radiator.
The effect of invention
According to the present invention, owing to arranging so that a plurality of contact switch of diodes in parallel section relatively even for example any contact surface is attached with foreign matter, still can guarantee by the conducting state of other contact switch section.Therefore, can reduce the bad occurrence probability of state that is attached to contact surface by foreign matter.
The accompanying drawing explanation
The stereogram of the execution mode that Fig. 1 is the anti-backflow device that means the present invention relates to;
The front view that (A) of Fig. 2 is the anti-backflow device shown in Fig. 1, (B) of Fig. 2 is right view, the C of Fig. 2 is vertical view;
Fig. 3 observes the exploded perspective view of the anti-backflow device shown in Fig. 1 from upper side;
Fig. 4 observes the exploded perspective view of the anti-backflow device shown in Fig. 1 from lower side;
The upward view of the state that (A) of Fig. 5 is the substrate that means to unload the anti-backflow device shown in Fig. 1, (B) of Fig. 5 is its local amplification stereogram;
Fig. 6 observes the exploded perspective view of the contact block of Fig. 3 from upper side;
Fig. 7 observes the exploded perspective view of the contact block of Fig. 3 from lower side;
Fig. 8 observes the exploded perspective view of the stationary contact member of Fig. 6 from upper side;
Fig. 9 observes the exploded perspective view of the stationary contact member of Fig. 6 from lower side;
The exploded perspective view of the moving contact member that Figure 10 is Fig. 6;
The exploded perspective view of the contact butt parts that Figure 11 is Fig. 6;
The central sectional view that Figure 12 is the anti-backflow device shown in Fig. 1;
Figure 13 is the sectional view for the contact block of the anti-backflow device shown in key diagram 1;
The circuit diagram of the example of the anti-backflow device that (A) of Figure 14 is presentation graphs 1, the circuit diagram of the example of the anti-backflow device that (B) of Figure 14 relates to for the execution mode that means other;
The circuit diagram of the example of the anti-backflow device that Figure 15 relates to for the execution mode that means other;
The circuit diagram of the example of the anti-backflow device that Figure 16 relates to for the execution mode that means other.
Label declaration
1: anti-backflow device
10: matrix
11: the location teat
12: connect and use recess
13: location notch
21,22: the input side splicing ear
23,25: the outlet side splicing ear
24: the relay connection terminal
26: connecting portion
26a: connect and use groove
26b: connect and use slotted hole
28a～28e: wire
29: diode
30: substrate
35: the slide rail keeper
40: electromagnetic block
41: coil
42: spool
43: iron core
44: yoke
45: movable iron
50: contact block
54: fixed contact piece
54a: fixed contact
56: but moving contacting plate
56a: moving contact
57: reset and use coil spring
58: the relay connection terminal
60: box body
Embodiment
Below, the execution mode that explanation the present invention relates to reference to the accompanying drawings.And, in the following description, although corresponding to needs used mean specific direction or position term (for example, the term that comprises upper and lower, side, end), but the use of these terms be for make with reference to the understanding of invention of accompanying drawing become easily, be not that the scope to technology of the present invention is limited according to the meaning of these terms.In addition, the following description is only example in essence, is not intended to limit the present invention, its applicable thing or its purposes.
Fig. 1 to Fig. 4 means the anti-backflow device 1 that present embodiment relates to.This anti-backflow device 1 consists of matrix 10, electromagnetic block 40, contact block 50 and box body 60 haply.
Described matrix 10 consists of the matrix main body 10A of the roughly box shape of bottom surface opening and the substrate 30 of this bottom surface peristome of sealing.
As shown in Figure 3, matrix main body 10A is by the support portion 10a of the electromagnetic block 40 that supports central portion be positioned at both end sides and form for connecting portion 10b wire (not shown) is connected electrically on splicing ear.
Be provided with a pair of teat 11 for location at the upper surface of support portion 10a.In each location with forming respectively through hole 11a in teat 11, forming from the be spirally connected mode of yoke 44 of Motionless electromagnetic piece 40 of bottom surface side.
In addition, be formed with respectively the locking pawl 14 outstanding to side at 10a both sides, support portion central portion.Each locks pawl 14 and locks in the stop hole 61 of box body 60 described later, makes to lock pawl 14 and can box body 60 be installed with respect to matrix main body 10A.
Further, form through hole 10c, 10d at one of support portion 10a two distolateral places, thereby wire 28b, 28c and 28d, 28e can be inserted through respectively therein.The through hole 10c of one side is inserted and is led to by the two root relay wire 28b, the 28c that are connected in relay connection terminal 24.The through hole 10d of opposite side is inserted and is led to by two outlet side wire 28d, 28e being connected in the first outlet side splicing ear 25.
Each connecting portion 10b is formed with respectively at two places of both sides and connects with recess 12.Dispose the attachment screw 20 with packing ring 20a in each connection with the bottom surface of recess 12.Each attachment screw 20 has connected and has connected the bottom surface with recess 12, is screwed together in respectively input side splicing ear 21,22 and outlet side splicing ear 23,25.
As shown in Figure 5, in connecting portion 10b, in described connection, with between recess 12, in the location formed from bottom surface side concavity ground, dispose relay connection terminal 24.Be connected with diode 29 on relay connection terminal 24, described diode 29 is connected in the first outlet side splicing ear 25.
Described splicing ear 21～25th, the material (for example copper) that pyroconductivity is high forms obtained tabularly.That is to say, the mode enlarged fully with surface area forms, even, as described later in diode 29 places heating, also can dispel the heat from splicing ear (this situation, relay connection terminal 24 and the first outlet side splicing ear 25).Particularly, at the first outlet side splicing ear 25 places, from the outside of matrix 10, be screwed with attachment screw 20.Therefore, can be from the first outlet side splicing ear 25 further to external cooling.
In addition, be formed with at described splicing ear 21～25 places to connect and use slotted hole 26b, at one end side forms and has the connecting portion 26 connected with groove 26a.The the first input side splicing ear 21 be configured on the connecting portion 10b of input side is connected on solar cell 71 described later via not shown wire, and is connected with the lead-out wire 41a of coil 41.In addition, the second input side splicing ear 22 is connected in the second outlet side splicing ear 23 via wire 28a.The first outlet side splicing ear 25 is connected and fixed respectively contact chip 54,54 via wire 28d, 28e.
And, as shown in Figure 1, between support portion 10a and each connecting portion 10b, be formed with respectively the narrower location notch of width 13, be arranged for configuring the lower edge of box body 60 described later.
As shown in Figure 3 because substrate 30 is that synthetic resin material tabular ground is shaped and obtains, so at one end two places of side and another three distolateral places, be formed for respectively and matrix main body 10A between keep the 30a of pedestal section of (clamping) splicing ear.Two ends at substrate 30 one-sided (diagonal position), the teat 31 that is formed with through hole 31a is outstanding respectively.Substrate 30 can utilize these teats 31 to be fixed on desired position by the mode such as screwing togather.Be formed with respectively and lock pawl 32b at the both sides of substrate 30 central portion.
As shown in Figure 4, on one of substrate 30 distolateral bottom surface, be formed with in order to be fastened on the engaging pawl 33 on not shown slide rail.In addition, on another distolateral bottom surface of substrate 30, slot 34a is respectively formed on the relative wall relative with predetermined distance, in the central portion office of relative wall, is formed with stop hole 34b.Utilize the slot 34a keeper 35 for slide rail described later that is slidably fastened.
As shown in Figure 3, slide rail with keeper 35 be formed with on its opposite face can with the slot 34a of described substrate 30, the ridge 36 that 34a is slidably fastened, be formed with the elastic claw 37 in the stop hole 34b that can lock at described substrate 30 at central portion.And, if slide rail is slidably fastened on the slot 34a of described substrate 30 by the ridge 36 of keeper 35, described slide rail locks on the stop hole 34b of described substrate 30 with the elastic claw 37 of keeper 35, is arranged at the locking pawl 38 with the engaging pawl 33 of described substrate 30 relative (with reference to (A) of Fig. 2) of described slide rail with the leading section of keeper 37.
As shown in Figure 12,13, electromagnetic block 40 is that the iron core 43 of inserting logical cross section shape in T shape in the centre bore of the spool 42 of coiling coil 41 obtains.An end 43a at iron core 43 rivets fixedly yoke 44.The other end of iron core 43 forms from outstanding magnetic pole piece (suction unit) 43b of flange part of an end of spool 42.The lead-out wire 41a of one end of coil 41 is connected in the first splicing ear 21 for input, and the lead-out wire 41b of the other end is connected in described relay connection terminal 24.
It is crooked resulting that yoke 44 is that the sheet material that will be formed by magnetic material roughly is コ word shape ground with cross section.That one end 43a of riveted joint secured core 43 is the pars intermedia 44a of yoke 44.At the front end of the 44b of upper horizontal section extended from pars intermedia 44a, rotatably support the movable iron 45 kept by support spring 46.In addition, horizontal part 44b above fixes contact block 50(stationary contact member 50B described later and contact butt parts 50C up).
As shown in Figure 6,7, contact block 50 comprises contact block 50, moving contact member 50A, stationary contact member 50B and contact butt parts 50C.
As shown in Figure 8, but but moving contact member 50A is that the fixing moving contacting plate support portion 55 that moving contacting plate 56 is inserted to shaping obtains on movable iron 45.Central portion in movable iron 45 is riveted fixedly butt pin 47.Butt pin 47 has and hides the magnetic function, for movable iron 45 when electromagnetic block 40 demagnetization be easy to from the magnetic pole piece 43b of iron core 43 away from.But movable iron 45 and moving contacting plate support portion 55 are by riveting the fixing one that is set to pin 50b.But fixedly moving contact 56a is riveted in the end at moving contacting plate 56.As shown in Figure 6,7, dispose on described recess 55a and reset with coil spring 57.Reset and be crimped on the fixed contact piece support portion 53 of stationary contact member 50B described later with coil spring 57, make moving contact member 50A(moving contact 56a) from stationary contact member 50B(fixed contact 54a) away from.
As shown in Fig. 9,10, stationary contact member 50B installs fixed contact piece 54 and relaying auxiliary terminal 58 obtains on fixed contact piece support portion 53.
Due to fixed contact piece support portion 53 be the synthetic resin material is formed obtained, therefore can be respectively at one end the side lower surface form the first installation portion 81, form the second installation portion 82 at other end upper surface.
The first installation portion 81 has two slot parts 83 in the longitudinal direction.Configure respectively fixed contact piece 54 in each slot part 83.Each fixed contact piece 54 of configuration is to rivet fixedly fixed contact 54a to obtain on the plate body formed by conductive material.One distolateral along the 53 end deflection of fixed contact piece support portion at each fixed contact piece 54, at distolateral outlet side wire 28d, the 28e of connecting respectively of each fixed contact piece 54.Each fixed contact piece 54 is by being riveted and be set to one with fixed contact piece support portion 53 rivet 54b.
The second installation portion 82 has the slot part 84 of both sides and the outstanding locking claw 85 upward from the both sides of each slot part 84.Assignment configuration relaying auxiliary terminal 58 on each slot part 84.Each relaying auxiliary terminal 58 consists of terminal bodies 58a and terminal press section 58b.Each terminal bodies 58a be the plate body that will be formed by conductive material at one end lateral bend become approximate right angle to obtain.Bending to the part of approximate right angle (bend 58c), and relay connection terminal 24 between be connected with respectively wire 28b, 28c.Be formed with notch part 58d in both sides with the part (neighboring region) of bend 58c adjacency.Terminal press section 58b is with the lamellar neighboring region that is installed on.Be formed with flexure strip 58e in 58b both sides, terminal press section.Flexure strip 58e is positioned at notch part 58d, and is limited to locking claw 85.In addition, another of the terminal bodies 58a of each relaying auxiliary terminal 58 distolateral (side contrary with bend 58c), but via not shown wire etc., with moving contacting plate 56, be electrically connected to.
In addition, in fixed contact piece support portion 53, be formed with the fixation side projecting strip part 86 that the part of cutting apart described two slot parts 83 is further extended to the lower side.An end at fixation side projecting strip part 86 is formed with columnar portion 87.In the bottom central part of columnar portion 87, be formed with from the bottom surface of fixation side projecting strip part 86 outstanding further teat 87a.Another distolateral cylindrical portion 88 that is formed with at fixation side projecting strip part 86.And 53a is for using the recess of coil spring 57 for configuring described later resetting.
As shown in figure 11, contact butt parts 50C comprises butt sheet support portion 51 and rivets fixing butt sheet 52 by rivet 52a at this place.Butt sheet support portion 51 is that the synthetic resin material is formed processing and is arranged to tabular obtained.Butt sheet support portion 51 is configured in the 44b(of upper horizontal section of yoke 44 with reference to Fig. 1 via insulating thin 48).Upper surface in butt sheet support portion 51 forms butt side projecting strip part 89 on the position of the fixation side projecting strip part 86 of the described fixed contact piece of correspondence support portion 53.Butt side projecting strip part 89 has columnar portion 90, at the upper surface of columnar portion 90, forms the engaging recessed part 90a of engaging teat 87a, and this teat 87a is formed at the columnar portion 87 of fixation side projecting strip part 86.In addition, butt side projecting strip part 89 has the cylindrical portion 91 of the cylindrical portion 88 that is communicated with fixation side projecting strip part 86.Leading to hold-down screw 50a(with reference to Figure 12 by inserting in two cylindrical portion 88,91 formed centre bores).And then, fixation side projecting strip part 86 is connected under the state of butt side projecting strip part 89, hold-down screw 50a is screwed together in the 44b of upper horizontal section of yoke 44.Thus, stationary contact member 50B and contact butt parts 50C are fixed in the 44b of upper horizontal section of yoke 44 jointly.And then, between contact switch section, by two projecting strip parts 89,86, by electricity fully, separated.In addition, on butt sheet 52, by the crooked of central portion, also give prominence to, form the abutting part 52 of moving contact 56a butt.
On the contact block 50 of described formation, but by two groups of moving contacting plate 56(moving contact 56a) and fixed contact piece (fixed contact 54a) form two contact switch sections.These two contact-making switch sections and diode 29 are connected in parallel.
Specifically, on the first outlet side splicing ear 25 that connects diode, via wire 28d, 28e, be connected and fixed respectively contact chip 54,54.On the other hand, on the relay connection terminal 24 that connects diode 29, via wire 28b, 28c, connect respectively relaying auxiliary terminal 58,58.But each relaying auxiliary terminal 58,58 is connected to moving contacting plate 56,56 via not shown wire.In addition, each relaying auxiliary terminal 58,58 is connected in relay connection terminal 24 via wire 28b, 28c.
Assemble method to the anti-backflow device 1 of described formation describes.Stationary contact member 50B and the contact butt parts 50C of contact block 50 are installed on electromagnetic block 40.In this is installed, the 44b of upper horizontal section in the yoke 44 that forms electromagnetic block 40, insert logical hold-down screw 50a to the stationary contact member 50B loaded via insulating thin 48 and contact butt parts 50C, by this hold-down screw 50a and the 44b of upper horizontal section are screwed togather and be set to one.
The electromagnetic block 40 that contact block 50 is installed is loaded on the matrix main body 10A of matrix 10, by screw togather hold-down screw 27 from bottom surface side, fixes.And then, but distolateral to inserting the moving contacting plate 56 of moving contact member 50A the gap of electromagnetic block 40 and contact block 50 from one.Further, make the upper end of movable iron 45 rotatably be supported on the fore-end of the 44b of upper horizontal section of yoke 44, and prevent that by support spring 46 it from coming off.
Then, but be electrically connected to relaying auxiliary terminal 58 and moving contacting plate 56 by not shown wire.In addition, logical the other end is inserted in the end of electrical connecting wire 28d, 28e on fixed contact piece 54 in the through hole 10d of matrix main body 10A, and the groove 26a of the connecting portion 26 by being pressed into the first outlet side splicing ear 25 is electrically connected to. Electrical connecting wire 28b, 28c on relaying auxiliary terminal 58 insert logical the other end in the through hole 10c of matrix main body 10A, and the groove 26a of the connecting portion 26 by being pressed into relay connection terminal 24 is electrically connected to.Be pressed into respectively each lead-out wire 29a of diode 29 in the groove 26a of the first outlet side splicing ear 25 and the connecting portion 26 of relaying auxiliary terminal 58.Be pressed into the lead-out wire 41b of coil 41 in the groove 26a of the connecting portion 26 of relay connection terminal 24.In addition, by the groove 26a of the second input side splicing ear 22 and the connecting portion 26 of the second outlet side splicing ear 23, being pressed into wire 28a, be electrically connected to.In addition, the quilts such as wire that are pressed in these grooves 26a are welded.
After this, at the lower surface of described matrix main body 10A, locate described each splicing ear 21～25 installation base plate 30, on this substrate 30, on matrix main body 10A, keeper 35 for slide rail is installed.And then the opening edge edge to inserting described box body 60 in the location notch 13 on the upper surface that is arranged on described matrix 10, lock and complete assembling operation in the stop hole 61 of described box body 60 by the locking pawl 14 that makes described matrix 10.
And the anti-backflow device 1 assembled like this is set to can be arranged on not shown slide rail.That is, the engaging pawl of substrate 30 33 is locked on slide rail.And then, slide rail is installed on substrate 30 and will be locked pawl 38 lockings with keeper 35 on slide rail.Thus, can clamp slide rail by two locking pawls, anti-backflow device 1 can be arranged on slide rail.
The anti-backflow device of described formation is used in photovoltaic power generation system, can be used in and prevent due to the generation of flowing through the caused energy consumption of large electric current in diode 29 or damage or due to the caused damage to solar cell of adverse current of 71 the electric current from storage battery 72 to solar cell.
In (A) of Figure 14, diode 29 is connected in series with coil 41, and two contact switch sections are connected in parallel on diode 29.In addition, coil 41 is connected in the first input side splicing ear 21, and solar cell 71 is connected between the first input side splicing ear 21 and the second input side splicing ear 22.In addition, storage battery 72 is connected between the first outlet side splicing ear 25 and the second outlet side splicing ear 23.
In the photovoltaic power generation system of described formation, if solar cell 71 generatings, electric current flows to coil 41 via the first input side splicing ear 21.
Sunlight a little less than, for example flow into the current value of coil 41, for to be less than in the situation of fixed value (3A), electromagnetic block 40 does not carry out excitation.That is to say, movable iron 45 does not drive, but at contact block 50 places because moving contacting plate 56 is failure to actuate, so moving contact 56a become from fixed contact 54a away from open state.Therefore, the electric current of supplying with from solar cell 71 charges to storage battery 72 via diode 29.Therebetween, the heat produced in diode 29 can be via the relay connection terminal 24 that has the surface area enlarged fully and the first outlet side splicing ear 25 heat radiations.Particularly at the first outlet side splicing ear 25 places, can be via the attachment screw 20 that is screwed together in this to external cooling.Therefore, even, for example to diode 29 energisings, also can prevent that temperature from rising.
In this situation, when little and voltage storage battery of the energy output of solar cell is stronger, although electric current will be from storage battery to the solar cell adverse current, as described above, contact can become open state.Therefore, the adverse current of electric current is stoped by diode 29.Therefore, can prevent that reverse current from flowing into solar cell 71, can stop its damage.
On the other hand, stronger at sunlight, for example, in the situation that in coil 41, mobile current value is more than or equal to fixed value (3A), electromagnetic block 40 excitations, movable iron 45 opposings reset and drive with the elastic force of coil spring 57.Thus, at contact block 50 places, but moving contacting plate 56 action and moving contact 56a and fixed contact 54a closures, two side by side conductings of contact switch section.Therefore, the electric current of supplying with from solar cell 71 is roundabout diode 29, and two contact switch sections little via resistance value are charged to storage battery.So, in the situation that the energy output in solar cell 71 is large, can in diode 29, not flow through large electric current.Therefore, can positively prevent the so-called bad generation that produces energy consumption or diode 29 damages on diode 29.In addition, owing to being configured such that the side by side conducting of opening portion, two contacts, even therefore for example foreign matter be attached to the contact surface of either side, the closing of contact of other that also can make to be left and guarantee "on" position.That is to say, can positively prevent the generation of the energy consumption in diode 29 or the damage of diode 29 etc.
And, the invention is not restricted to record formation in said embodiment, it can carry out various changes.
For example, although be provided with in said embodiment two contact switch sections that are connected in parallel with respect to diode 29, also can arrange more than 3.Thus, can further make it have the patience of the foreign matter due at the contact surface place being adhered to the generation of caused bad (loose contact).
In addition, in described execution mode, although only be set to respect to the be connected in parallel formation of a plurality of contact switch section of diode 29, but the contact switch section more than three is set, and be connected in parallel wherein more than two, with other contact switch section, be not connected in parallel more than one, can be used as to detect yet and export with and use.
For example, as shown in Figure 14 (B), also can be by connecting the lighting unit of LED etc. between terminal C, C detecting output use, whether light (additive method also can) by lighting unit and judge whether that electromagnetic block 40 excitations make the closing of contact.
In addition, as shown in figure 15, can omit the second input side splicing ear 22, the second outlet side splicing ear 23(N, N) and the wire 28a that connects them, be configured such that solar cell 71 directly is connected each other with the terminal (N, N) of a side of storage battery 72.Form according to this, can obtain larger with the insulation distance value between the line that directly is connected solar cell 71 and storage battery 72 (between N, N) by the line (between P, P) that links the first input side splicing ear 21 and the first outlet side splicing ear 25.In addition, can, by the second input side connection terminal 22, the second outlet side splicing ear 23 and wire 28a are not set, make anti-backflow device 1 miniaturization is become to possibility.
In addition, as shown in figure 16, the contact switch section of the detection output use that is connected in series a plurality of anti-backflow devices 1 can be set.So, although electromagnetic block 40 carries out excitation, if, even the contact switch contact of any one monitoring output use is not closed, can not make the lighting module bright light.Therefore, a glance is detected and the bad possibility that becomes occurs on any anti-backflow device.
Utilize possibility on industry
The anti-backflow device the present invention relates to, except described photovoltaic power generation system, also can adopt in other the electric power system such as self generating system of hybrid vehicle.
Claims (6)
1. an anti-backflow device, is characterized in that, comprising:
Contact switch section with contact, described contact carries out excitation by the electromagnetic block to having coil or switch is carried out in demagnetization; With
Diode;
Described contact switch section has a plurality of, and described coil and described diode are connected in series, and described each contact switch section is connected with described diodes in parallel.
2. anti-backflow device according to claim 1, is characterized in that, also comprises: the matrix that disposes relay connection terminal and outlet side splicing ear;
Described relay connection terminal and described outlet side splicing ear are set up in parallel, and described diode and described contact switch section are connected in parallel between described relay connection terminal and described outlet side splicing ear.
3. anti-backflow device according to claim 2, is characterized in that, described contact switch section comprises contact block;
But described contact block comprises a plurality of fixed contact pieces that are electrically connected to described outlet side splicing ear and the moving contacting plate be electrically connected to described relay connection terminal;
Described fixed contact piece has fixed contact, but described moving contacting plate has moving contact, and the fixed contact of described moving contact and described each fixed contact piece is relative in mode that can contact separation.
4. according to the described anti-backflow device of claim 2 or 3, it is characterized in that, also dispose the input side splicing ear on described matrix;
Described electromagnetic block forms coil winding be arranged on described matrix in iron core via spool, and the lead-out wire of a side of described coil is connected in to described relay connection terminal, and the lead-out wire of the opposite side of described coil is connected in to described input side splicing ear.
5. anti-backflow device according to claim 1 and 2, is characterized in that, described contact switch section has more than three, and in this contact switch section, at least one is not connected with described diodes in parallel and as monitoring output.
6. a solar cell protective device, is characterized in that, the described anti-backflow device of described claim 1 to 5 any one is connected between electric storage means and solar cell.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012197625A JP6136150B2 (en) | 2012-09-07 | 2012-09-07 | Backflow prevention device and solar cell protection device |
| JP2012-197625 | 2012-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203387164U true CN203387164U (en) | 2014-01-08 |
Family
ID=49875614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320451535.1U Expired - Lifetime CN203387164U (en) | 2012-09-07 | 2013-07-26 | Anti-reflux device and solar cell protection device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6136150B2 (en) |
| KR (1) | KR20140045867A (en) |
| CN (1) | CN203387164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529742A (en) * | 2016-02-18 | 2016-04-27 | 江西洪都航空工业集团有限责任公司 | Environmental overload-resistant reverse isolation-type high-power power supply grid connection control method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS513402Y1 (en) * | 1970-08-31 | 1976-01-31 | ||
| JP3289394B2 (en) * | 1992-06-19 | 2002-06-04 | オムロン株式会社 | Backflow prevention device and solar cell protection device |
| JP3978993B2 (en) * | 2000-10-03 | 2007-09-19 | オムロン株式会社 | Electromagnetic relay |
-
2012
- 2012-09-07 JP JP2012197625A patent/JP6136150B2/en active Active
-
2013
- 2013-07-17 KR KR1020130084002A patent/KR20140045867A/en not_active Application Discontinuation
- 2013-07-26 CN CN201320451535.1U patent/CN203387164U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529742A (en) * | 2016-02-18 | 2016-04-27 | 江西洪都航空工业集团有限责任公司 | Environmental overload-resistant reverse isolation-type high-power power supply grid connection control method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6136150B2 (en) | 2017-05-31 |
| KR20140045867A (en) | 2014-04-17 |
| JP2014053200A (en) | 2014-03-20 |
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| C14 | Grant of patent or utility model | ||
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