CN203387436U - Countercurrent prevention device and sunlight power generation system provided with same - Google Patents
Countercurrent prevention device and sunlight power generation system provided with same Download PDFInfo
- Publication number
- CN203387436U CN203387436U CN201320460577.1U CN201320460577U CN203387436U CN 203387436 U CN203387436 U CN 203387436U CN 201320460577 U CN201320460577 U CN 201320460577U CN 203387436 U CN203387436 U CN 203387436U
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- Prior art keywords
- diode
- backflow device
- splicing ear
- pedestal
- contact
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- 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
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- Photovoltaic Devices (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
Abstract
The utility model relates to a countercurrent prevention device. A movable iron piece is enabled to rotate through applying current to a coil (41) of an electromagnetic block (40) arranged on the upper surface of a base (10), and a contact of a contact mechanism portion (50) is switched on or off through the movable iron piece; a diode (29), which is connected to the contact of the contact mechanism portion (50) in parallel, is connected to an output side of the coil (41) in series; and two end portions of the diode (29) are directly connected to and configured at connection terminals (24, 25) inside the base (10) respectively.
Description
Technical field
The present invention relates to anti-backflow device, for example, be used in the anti-backflow device of photovoltaic power generation system.
Background technology
In the past, in photovoltaic power generation system, in order to prevent the adverse current from the electric current of storage battery, there is the solar cell protective device (with reference to patent documentation 1) that connects the counterflow-preventing diode and form on electromagnetic relay.
The prior art document
Patent documentation 1: Japanese patent laid-open 6-70484 communique.
Summary of the invention
But, in described solar cell protective device, if large electric current flows from solar cell to described diode, may cause diode deterioration, breakage due to self-heating.Therefore, the heating panel that the heat to producing from described diode is dispelled the heat need to be set, easily make device volume become large.Particularly, when described diode actual installation on printed base plate the time, also need to be arranged to heating panel on described printed base plate, exist and make device volume become larger.The present invention will provide a kind of anti-backflow device, and purpose is that the unlikely change of device volume is large in the protection diode.
The anti-backflow device the present invention relates to, should solve described problem.A kind of anti-backflow device, come the contact of section of switch contact mechanism by movable iron, the coil of the electromagnetic block of described movable iron by being arranged on pedestal upper surface applies electric current and rotates, and the diode be connected in parallel with the contact of described contact mechanism section and the outlet side of described coil are connected in series; The both ends of described diode directly are connected with the splicing ear in being configured in described pedestal.
The invention effect
Based on the present invention, because the two ends of diode are directly connected in splicing ear, even the heating of described diode, because can prevent deterioration, the breakage of described diode, and not need heating panel by described splicing ear heat radiation, can miniaturization.In addition, based on the present invention, because diode is directly connected in splicing ear, do not need to be connected in printed base plate, just can be by equipment miniaturization, and enlarge the degree of freedom of design.
As embodiments of the present invention, can on the connecting portion extended from described splicing ear, along bearing of trend, groove be set, and directly connect the both ends of described diode in described groove.Based on present embodiment, only by the two ends that are pressed into diode in the groove to splicing ear, just can connect, do not need, to being familiar with of attended operation, to improve operability.
As new execution mode of the present invention, can configure described diode based on present embodiment between the splicing ear of the inner top surface of pedestal and the described pedestal of packing into, even fusion welding outflow due to the diode heating, diode does not also come off, the fault prevented in advance.
As other execution mode of the present invention, can implementing bending machining by the connecting portion to described splicing ear, that ladder is set is poor, by described arrangements of grooves in the position than higher order.Based on present embodiment, the location at the diode both ends of the groove of splicing ear becomes easily relatively, and it is simple that attended operation becomes.
As of the present invention another be execution mode, can be at the base portion of described connecting portion, vertical being connected of the bearing of trend slotted hole with described groove is set.Based on present embodiment, can carry out distribution in the position of different multiple conducting wires, obtain the simple anti-backflow device of attended operation.
The different execution mode as the present invention, can seal by base plate the bottom surface peristome of described pedestal.Based on present embodiment, even, because the heating of diode makes described base plate melting, because the inner space of pedestal is closed, can block the intrusion of oxygen, can reduce possibility on fire.
The photovoltaic power generation system the present invention relates to comprises that above-mentioned anti-backflow device forms as the solar cell protective device.
Based on the present invention, because the two ends of diode are directly connected in splicing ear, even the heating of described diode owing to can preventing deterioration, the breakage of described diode by described splicing ear heat release, and does not need heating panel, can miniaturization.In addition, based on the present invention, owing to directly connecting diode in splicing ear, do not need to connect printed base plate, can make equipment miniaturization, and obtain the effect of the design freedom of larger photovoltaic power generation system.
The accompanying drawing explanation
Fig. 1 is the stereogram of the execution mode of expression anti-backflow device involved in the present invention;
Front view, right view and vertical view that (A) of Fig. 2, (B), (C) are the anti-backflow device shown in Fig. 1;
The exploded perspective view that Fig. 3 is the anti-backflow device shown in Fig. 1;
Fig. 4 is for observing from different perspectives the exploded perspective view of the anti-backflow device shown in Fig. 1;
Upward view, the local amplification stereogram of the state that (A) of Fig. 5, (B) are the base plate that means to unload the anti-backflow device shown in Fig. 1;
The central sectional view that Fig. 6 is the anti-backflow device shown in Fig. 1;
Fig. 7 is the sectional view for the contact mechanism section of the anti-backflow device shown in key diagram 1;
The internal circuit diagram that Fig. 8 is the anti-backflow device shown in Fig. 1;
The internal circuit diagram that Fig. 9 is different anti-backflow device involved in the present invention.
Label declaration
10: pedestal
11: the location teat
12: connect and use recess
13: location notch
21,22: the input splicing ear
23,25: the output splicing ear
24: the cooling relay connection terminal of using
26: connecting portion
26a: connect and use groove
26b: connect and use slotted hole
28a-28e: wire
29: diode
30: base plate
35: the slide rail keeper
40: electromagnetic block
41: coil
42: spool
43: iron core
44: yoke
45: movable iron
48: insulating thin
50: contact mechanism section
51: the below insulation pad
53: the top insulation pad
54: fixed contact piece
54a: fixed contact
55: brace table
56: but moving contacting plate
56a: moving contact
57: reset and use coil spring
58: the relay connection terminal
60: the box lid
70: solar cell
71: storage battery
Embodiment
The execution mode of anti-backflow device involved in the present invention will be described according to the accompanying drawing of Fig. 1 to Fig. 9.As shown in Figure 3,4, described anti-backflow device comprises haply: the pedestal 10 with rectangular box in plane of base plate 30, be installed on the electromagnetic block 40 of the upper surface of described pedestal 10, be equipped on the contact mechanism section 50 of described electromagnetic block 40, be installed on the box lid 60 of described pedestal 10 in the mode that coats described electromagnetic block 40 and contact mechanism section 50.
Surface is outstanding thereon on the one hand that a pair of teat 11,11 location for is set for described pedestal 10, and on the other hand, in the edges at two ends section of described pedestal 10, with the interval of fixing, adjacent mode arranges connection and uses recess, and insulation property are improved.And then, in described connection with disposing the attachment screw 20 with packing ring 20a in recess 12.In addition, in described location, with teat 11, with described, be connected with between recess 12,12, described pedestal 10 is provided with location notch 13.Further, described pedestal 10 locks pawl 14 outstanding being provided with of the top edges section of its side, both sides.On the other hand, be positioned at described connection with on the lower surface under recess 12, described pedestal 10 configures respectively splicing ear 21,22 and output splicing ear 23,25 for input, thereby can screw togather with described attachment screw 20.In addition, as shown in Figure 5, between described output is with splicing ear 23,25, dispose cooling with relay connection terminal 24.
With splicing ear 21 to 25, by pyroconductivity, higher copper material forms in described input, the connecting portion 26 obtained in the distolateral extension from it, arrange to connect along bearing of trend and use groove 26a, and be arranged so that the base portion place at described connecting portion 26, on described bearing of trend be connected with slotted hole 26b vertical.In addition, described connecting portion 26 is implemented bending machining, in described connection with groove 26a with described to set out ladder between being connected with slotted hole 26b poor, as shown in Figure 5, groove 26a is configured in the position of higher order.Further, described connection has for ease of keeping multiple conducting wires described later the unequal width dimensions that sets out notch part with groove 26a, but can certainly be equal width dimensions.
As shown in Figure 3,4, base plate 30 has the flat shape of the bottom surface opening that can coat described pedestal 10, and teat 31 is arranged highlightedly to side, and described teat 31 has installing hole 31a being positioned on the bight of point symmetry position.In addition, described base plate 30 pressing with the 32a of frame section with being provided with on the described cooling position corresponding with relay connection terminal 24 in its upper surface, and on the both sides side relative with described base plate 30, outstanding being provided with locks pawl 32b.Further, as shown in Figure 4, on the one hand, the engaging pawl 33(that described base plate 30 bottom surface distolateral at one is provided with for being fastened on slide rail is not shown), on the other hand, its another distolateral being set side by side with for the slide rail described later a pair of slot 34a with keeper 35 that is slidably fastened.And then, be provided with connecting hole 34b between described slot 34a.
As shown in Figure 3, the outstanding ridge 36 that can be slidably fastened on slot 34a, the 34a of described base plate 30 that is provided with in the two sides that slide rail is relative at it with keeper 35, and, be provided with in the central the elastic claw 37 that can lock in the stop hole 34b of described base plate 30.Therefore, by the ridge 36 of described slide rail with keeper 35 that be slidably fastened in the slot 34a at described base plate 30, and lock the locking pawl 37 of described slide rail with keeper 35 in the stop hole 34b of described base plate 30, being arranged on described slide rail will relative with the engaging pawl 33 of described base plate 30 (Fig. 2 (A)) with the engaging pawl 38 on the leading section of keeper 35.
As shown in Figure 6,7, electromagnetic block 40 is inserted the iron core 43 of logical cross section shape in T shape in the centre bore of the spool 42 of coiling coil 41, on the one hand, an outstanding end 43a riveted joint is fixed on to the vertical component effect 44a that cross section roughly is the yoke 44 of コ word shape, on the other hand, using outstanding the other end as magnetic pole piece 43b.In addition, at the front end of the 44b of upper horizontal section of described yoke 44, movable iron 45 is supported in the mode that can rotate via support spring 46.And then riveted joint is fixed in described movable iron 45 and has the abutting member 47 that hides magnetic property relative in the mode that can contact with the magnetic pole piece 43b of described iron core 43 or separate.
As shown in Figure 7, contact mechanism section 50 comprises: below insulation pad 51, and the upper surface setting of insulation pad 51 has the illusory illusory fixed contact piece 52 with fixed contact 52a below described; Top insulation pad 53, the lower surface setting of insulation pad 53 has the fixed contact piece 54 of stationary nodes 54a above described; But and the top insulation pad that rotatably supports moving contacting plate 54, but the free end of described moving contacting plate 54 has moving contact 56a.Described brace table 55 is fixed in the upper end of described movable iron 45.And then the upper surface at the 44b of upper horizontal section of described yoke 44, stack gradually described below insulation pad 51 and described top insulation pad 53 via insulating thin 48, at the 44b of upper horizontal section of described yoke 44, hold-down screw 50a screwed togather and fixes.In addition, below described insulation pad 51 and described above between insulation pad 53, but by configuring described moving contacting plate 56, described moving contact 56a is with described illusory relative in the mode that can reciprocally contact or separate with fixed contact 52a, fixed contact 54a.As shown in Figure 6, but described brace table 55 forces in described moving contacting plate 56 via resetting to the lower side with coil spring 57.Therefore, when resetting, described moving contact 56a contact is described illusory with fixed contact 52a(Fig. 1).In addition, but the relay connection terminal 58,58 that is fixed in the top surface edge section of described top insulation pad 53 is connected to moving contacting plate 56,56 by not shown wire, and by wire 28b, 28c, is connected in cooling with relay connection terminal 24.Further, described fixed contact piece 54,54 is connected to splicing ear 25 for output via wire 28d, 28e.
Assemble method to the anti-backflow device that is comprised of aforesaid member of formation describes.At first, on the 44b of upper horizontal section of the yoke 44 that forms electromagnetic block 40 via insulating thin 48 sections of set feeler mechanism 50 below insulation pad 51.Secondly, but fix moving contacting plate 56 has been carried out to integrated brace table 55 in the upper end of movable iron 45, via support spring 46, on the 44b of upper horizontal section of described yoke 44, in the mode that can rotate, support described movable iron 45.And then, coil spring 57 for position reset on described brace table 55, and, stacking on insulation pad 51 below described above after insulation pad 53, by hold-down screw 50a on the 44b of upper horizontal section of yoke 44, fix described below insulation pad 51 and above insulation pad 53.And then, via not shown wire, but be electrically connected to relay connection terminal 58 and moving contacting plate 56.
On the other hand, on described pedestal 10, splicing ear 21 for input, the input that connects via wire 28a are configured on the bottom surface of described pedestal 10 with splicing ear 25 with splicing ear 23 and the output that is connected wire 28d, 28e with splicing ear 22 and output, and pass through attachment screw 20 and fix.And then be located by connecting on described pedestal 10 wire 28b, 28c's is cooling with relay connection terminal 24, and by the two ends of diode 29 be connected to described cooling with relay connection terminal 24 and output with on splicing ear 25.Now, described diode 29 is disposed between the inner top surface and described splicing ear 24,25 of described pedestal 10.In addition, described wire 28b to 28e is led to the upper surface of described pedestal 10.
And then, at the described electromagnetic block 40 of mounting on teat 11 for location of pedestal 10, and be fixed on pedestal 10 from lower side by hold-down screw 27.
Secondly, in splicing ear 21, the cooling connection with relay connection terminal 24 with being pressed into respectively and welding lead-out wire 41a, the 41b of described coil 41 in groove 26a.And then, respectively described wire 28b, 28c are connected on relay connection terminal 58,58, and respectively wire 28d, 28e are connected on fixed contact piece 54,54.
Therefore, as shown in Figure 8, but in the anti-backflow device the present invention relates to, diode 29 and two moving contacting plates 56,56 are connected in parallel, and are connected in series with the outlet side of coil 41.Therefore, in the present embodiment, but form double bypass circuit by two moving contacting plates 56,56.Consequently, even in the situation that but the moving contacting plate 56 of a side does not form closed circuit, but also can form closed circuit by the moving contacting plate 56 of opposite side, can prevent the breakage due to the caused diode 29 of overcurrent thus, there is the high anti-backflow device of the reliability of acquisition.And, in the present embodiment, as shown in Figure 9, but can certainly connect in parallel a moving contacting plate 56 to diode 29.
And then, the chimeric base plate 30 of slide rail with keeper 35 that be equipped with in the lower surface opening edge edge of described pedestal 10, and prevent from coming off via its locking pawl 32b.Finally, insert the opening edge edge of described box lid 60 in set location notch 13 at the upper surface of described pedestal 10, the stop hole of described box lid 60 61 is locked on the locking pawl 14 of described pedestal 10, complete thus assembling operation.
According to present embodiment; because the two ends of diode 29 are connected to cooling with relay connection terminal 24 and splicing ear 25 for output; even overcurrent flows and generates heat in diode 29; also can dispel the heat efficiently via described splicing ear 24,25, thereby can protect diode 29.In addition, in the present embodiment, as shown in Figure 6,7, due to described diode 29 between the inner top surface and splicing ear 24,25 of pedestal 10, even therefore the heating by described diode 29 makes melt solder, loss, described diode 29 can not come off yet, and is difficult to form fault.Further, according to present embodiment, due to not on printed base plate essence described diode 29 is installed, therefore without the gauge of research printed base plate, the gauge of Copper Foil, the width dimensions of wiring graph etc., have advantages of that design freedom is larger.
Secondly, for the situation that described anti-backflow device is used in to photovoltaic power generation system, describe.For example, on the one hand, its input side connection solar cell 70 at the anti-backflow device shown in Fig. 8, on the other hand, connect the storage battery 71 as load at its outlet side.And then, for example, in the situation that solar cell 70 sends the electric power of regulation and current flowing (electric current below 3A), though in coil 41 current flowing, due to the elastic force resetted with coil spring 57, movable iron 45 can not moved yet.Therefore, but the moving contact 56a of moving contacting plate 56 is not contacted with fixed contact 54a, and the electric current that solar cell 70 sends flows to storage battery 71 via diode 29.
And then, in the situation that solar cell starts to flow through the electric current more than 3A, the magnetic force produced by the electric current due to mobile in coil 41, opposing resets with the elastic force of coil spring 57, the magnetic pole piece 43b of iron core 43 attracts movable iron 45, and movable iron 45 is rotated.Therefore, the brace table 55 that is set to one with described movable iron 45 rotates, but the moving contact 56a of moving contacting plate 56 from illusory by fixed contact 52 to fixed contact 54a switching, but electric current flows to storage battery 71 via two moving contacting plates 56 from solar cell 70.Therefore, when large electric current flows through, because diode 29 does not flow through large electric current, diode 29 does not generate heat, so energy consumption tails off, and obtains diode 29 and is difficult to the photovoltaic power generation system worsened.
Secondly, if the energy output of solar cell 70 descends, the electric current flow through becomes below 3A, and the electric current flow through in coil 41 tails off, and by resetting with the elastic force of coil spring 57, movable iron 45 is pressed and returns, to rotating with aforementioned rightabout.Therefore, but the moving contact 56a of moving contacting plate 56 from fixed contact 54a away from and with illusory, with fixed contact 52a, contact.Consequently, the electric current obtained although solar cell 70 generates electricity flows via diode 29, is not large electric current, therefore, and can the breakage due to diode 29 self-heatings.In addition, even the energy output of solar cell 70 significantly descends, diode 29 also can prevent the adverse current from the electric current of storage battery 71.
Utilize possibility on industry
In the present embodiment, although be that situation to being applied to photovoltaic power generation system describes, may not be limited to this, for example, certainly also be applicable to other the electricity generation system such as self generating system of hybrid vehicle.
Claims (7)
1. an anti-backflow device, it is characterized in that, come the contact of section of switch contact mechanism by movable iron, the coil of the electromagnetic block of described movable iron by being arranged on pedestal upper surface applies electric current and rotates, and the diode be connected in parallel with the contact of described contact mechanism section and the outlet side of described coil are connected in series;
The both ends of described diode directly are connected with the splicing ear in being configured in described pedestal.
2. anti-backflow device according to claim 1, is characterized in that, on the connecting portion extended from described splicing ear, along bearing of trend, groove is set, and directly connect the both ends of described diode in described groove.
3. anti-backflow device according to claim 1, is characterized in that, the described diode of configuration between the splicing ear of the inner top surface of pedestal and the described pedestal of packing into.
4. anti-backflow device according to claim 2, is characterized in that, by the enforcement of the connecting portion to described splicing ear bending machining, ladder is set poor, the position by described arrangements of grooves at higher order.
5. according to the described anti-backflow device of claim 2 to 4 any one, it is characterized in that, at the base portion of described connecting portion, vertical being connected of the bearing of trend slotted hole with described groove is set.
6. according to the described anti-backflow device of claim 1 to 4 any one, it is characterized in that, seal the bottom surface peristome of described pedestal by base plate.
7. a photovoltaic power generation system, is characterized in that, comprises the anti-backflow device of claim 1 to 6 any one record.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012197629A JP6051703B2 (en) | 2012-09-07 | 2012-09-07 | Backflow prevention device and photovoltaic power generation system provided with the same |
| JP2012-197629 | 2012-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203387436U true CN203387436U (en) | 2014-01-08 |
Family
ID=49875884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320460577.1U Expired - Lifetime CN203387436U (en) | 2012-09-07 | 2013-07-30 | Countercurrent prevention device and sunlight power generation system provided with same |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6051703B2 (en) |
| KR (1) | KR20140045868A (en) |
| CN (1) | CN203387436U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111831046A (en) * | 2019-04-16 | 2020-10-27 | 联咏科技股份有限公司 | Output stage circuit and voltage stabilizer thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5321403Y2 (en) * | 1973-06-01 | 1978-06-05 | ||
| JPH0713156Y2 (en) * | 1985-06-25 | 1995-03-29 | 松下電工株式会社 | Terminal structure of electric equipment case |
| JPS62195944U (en) * | 1986-06-02 | 1987-12-12 | ||
| JP3289394B2 (en) * | 1992-06-19 | 2002-06-04 | オムロン株式会社 | Backflow prevention device and solar cell protection device |
| JPH09320649A (en) * | 1996-05-29 | 1997-12-12 | Yazaki Corp | Wiring board |
-
2012
- 2012-09-07 JP JP2012197629A patent/JP6051703B2/en active Active
-
2013
- 2013-07-17 KR KR1020130084004A patent/KR20140045868A/en not_active Application Discontinuation
- 2013-07-30 CN CN201320460577.1U patent/CN203387436U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111831046A (en) * | 2019-04-16 | 2020-10-27 | 联咏科技股份有限公司 | Output stage circuit and voltage stabilizer thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20140045868A (en) | 2014-04-17 |
| JP6051703B2 (en) | 2016-12-27 |
| JP2014053201A (en) | 2014-03-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140108 |
|
| CX01 | Expiry of patent term |