EP2718982A1 - Boîtier de panneau photovoltaïque à contact interne amélioré - Google Patents

Boîtier de panneau photovoltaïque à contact interne amélioré

Info

Publication number
EP2718982A1
EP2718982A1 EP12727638.4A EP12727638A EP2718982A1 EP 2718982 A1 EP2718982 A1 EP 2718982A1 EP 12727638 A EP12727638 A EP 12727638A EP 2718982 A1 EP2718982 A1 EP 2718982A1
Authority
EP
European Patent Office
Prior art keywords
contact
clamping element
diode
solar
box
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.)
Withdrawn
Application number
EP12727638.4A
Other languages
German (de)
English (en)
Inventor
Simon DÜNSER
Marco Weiss
Alexander Schmid
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hirschmann Automotive GmbH
Original Assignee
Hirschmann Automotive GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hirschmann Automotive GmbH filed Critical Hirschmann Automotive GmbH
Publication of EP2718982A1 publication Critical patent/EP2718982A1/fr
Withdrawn legal-status Critical Current

Links

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
    • H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
    • 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

Definitions

  • the invention relates to a photovoltaic panel box, comprising a housing lower part and a cooperating housing upper part, wherein a seal is provided between the housing lower part and the housing upper part and at least one connector for a connection line and inside the photovoltaic panel box a contact carrier with contacts are provided according to the features of the preamble of claim 1.
  • solar elements To exploit de solar energy for the purpose of conversion into electrical energy solar elements are known per se.
  • Such solar elements are interconnected in a plurality to form a solar power plant, with which the solar energy is converted into usable electrical energy.
  • the individual solar elements contacts, in particular flags or ribbons, which protrude from the surface of the solar element.
  • DC is generated, always two ribbons or flags protrude from the surface of the solar element.
  • Such a photovoltaic panel box is known from EP 1503 426 A2.
  • This photovoltaic panel box has a housing part and an upper housing part, which are combined to form an overall housing, which is mounted on the surface of the solar element, in particular glued.
  • a seal is provided to protect this photovoltaic panel box from external influences. So that the tapped contacts of the solar elements can be electrically led to the outside, connector and connection cables are present.
  • a contact carrier with contacts is located inside the overall housing of the photovoltaic panel junction box, whereby the contacts of the solar element are tapped and contacted with the connection lines.
  • EP 1 503 426 A2 shows the basic structure of a known photovoltaic panel box. In practice, however, it has been found that this known junction box is in terms of connectivity to the outside, with respect to the heat balance, in terms of internal contact and in terms of their structural design in need of improvement overall.
  • the connecting conductors of the solar element are arranged in a conductor channel and have a stiffening element and latching means.
  • This makes it possible that with the contact device, which is arranged on a contact plate, the contacting of the solar element via the photovoltaic panel box to their connection lines can be done to the outside.
  • this requires on the one hand a complex construction and embedding of the terminals of the solar element, so that this is not inexpensive and efficient to produce.
  • this complex design of the contacts of the Soiareiementes leads to a correspondingly complex corresponding contact on the part of Panel box. Therefore, it is now gone over to the fact that for the purpose of rational production and simplified contacting of the solar element only ribbon, flag or similar are led out, which are to be contacted by suitable means of photovoltaic panel box.
  • the invention is therefore based on the object to provide improvements in the internal contacting, in particular in the contacting of the contact lugs or the like of the solar element or arranged in the box box diodes.
  • a clamping element can be attached to the contact within the panel box, in particular a contact of the contact carrier or of the stamped grid, wherein the clamping element can be brought from a pre-position into a latching position.
  • the contact of the panel box, which is placed on the solar element comprises the clamping element, wherein between the contact of the box box and the clamping element, the Kunststofffähnchen or the like of Soiariatas is inserted. After the clamping element has been brought into the latching position, the electrical contact between the solar element and the junction box and the connected connection cable is made.
  • the tensioning element is an individual part which can be handled loosely by the contact of the panel box. That is, the clamping element must be attached as a single part to the contact and be brought from its pre-position into its locking position for the purpose of clamping the contact of the solar element.
  • the clamping element is captive, but movably attached to the contact of the panel box. This has the advantage that the clamping element is immediately available for contacting the contact of the solar element after the panel box has been placed on the solar element.
  • the involved contact elements, in particular the panel box are preferably produced in a punch bending process, in a punch rolling process or the like.
  • the clamping element has a geometry which makes it possible for an additional contact force to be exerted by the clamping element on the contact of the panel box and the contact of the solar element over the life of the box box.
  • the tensioning element consists of a spring material.
  • the clamping element has an approximately U-shaped contact area and the contact one with the contact area corresponding and the clamping element receiving investment area. This makes it possible in an advantageous manner that the contact of the solar element can be clamped in ribbon form between the clamping element and the contact of the junction box. Overall, a construction for the purpose of contacting is available, which can be mounted quickly, but at the same time also disassembled.
  • the clamping element has a latching clamping region, wherein in a further embodiment of the locking clamping area is provided on the end side of the clamping element.
  • the clamping element after it has been brought into its Verrastposition for the purpose of contacting, permanently in the field of box box, in particular at the contact, the contact carrier, the lead frame or similar areas of the box box, be set.
  • the detent clamping region is preferably located at the end of an elongated tensioning element, so that this tensioning element is arranged movably at one end on the contact and a sufficiently large contact region is available between this region and the detent clamping region provided at the other end.
  • At least one further clamping element is provided for fastening a diode to the stamped grid and / or the contact carrier.
  • known box doses have diodes required to eliminate power surges in power generation.
  • these diodes are arranged on the electrical conductors insoluble (for example, soldered), so that an exchange in the case of a defective diode is not possible.
  • the further clamping element according to the invention offers the possibility that in the case of a defective diode this (if it is permanently connected) by snapping off their Beinchen can be removed, with a new diode can be used and held with the clamping element.
  • the stamped grid has contacts for the new diode.
  • the stamped grid contacts for the diode wherein the legs of the diode with these contacts detachably connected (for example by a clamping connection) is connected. If the diode is defective, the clamping element can be loosened, the diode replaced and the new diode both mechanically fixed in position by the clamping element and also electrically contacted with the contacts.
  • the clamping element is provided in an advantageous manner, which may be present in a permanently soldered diode, but does not have to. If the festlisted diode has been replaced and the new diode has been used, the contacting of the legs of the diode via the two contacts, which are already present, where in addition the diode is mechanically fixed by means of the clamping element in position. At the same time, the tensioning element can act on the diode and its legs as well as the associated contacts, thereby also contacting or at least supported.
  • FIG 1 shows, as far as shown in detail, the essential components of a photovoltaic panel box according to the invention.
  • a housing of the junction box is formed by a housing lower part 1 and a housing upper part 2 (also referred to as a cover), wherein a seal 3 (circumferential) is provided between the housing base 1 and the housing upper part 2.
  • the panel box in particular the Gescousunterteii 1, connector 4 (here two connector 4 for the positive and negative line), wherein the connector 4 are provided with connection lines 5.
  • the connection lines 5 lead to connection points, so that so several box sockets can be interconnected.
  • a contact carrier 6 with contacts not shown here wherein the contact carrier 6 preferably formed by the Gezzauserteii 1 (one-piece variant) or as a separate component to the Gezzauseunterteii 1 is attached (two-piece variant).
  • the electrically insulating contact carrier 6 is still brought into contact with a stamped grid 7 made of an electrically conductive material, which can either form the contacts or can serve for receiving further contacts, as will be described below.
  • the Gescouseunterteii 1 and the upper housing part 2 are made in an advantageous manner from a long-term weathering-stable plastic, it being advisable to produce these two parts in a plastic injection molding of the same or different material.
  • FIG. 3 shows an insulating film 101, this insulating film being arranged between the electrical conductor of the connecting line 5 and an associated contact of the contact carrier 6 (or of the stamped grid 7).
  • This insulating film 101 with thermally conductive and at the same time electrically insulating properties makes it possible to dissipate the heat arising in the interior of the housing of the junction box over the electrical conductor of the connecting line 5 in an advantageous manner to the outside.
  • the at least one insulating film 101 has the fundamental advantage of electrically conductive areas in the interior of the junction box thermally conductive, but at the same time electrically insulating to connect one electrical conductor of at least one connecting line 5, to dissipate the heat inside to the outside.
  • the insulating film 101 may of course also be connected to the at least one cooling plate 1001.
  • FIG. 4 shows in this case the upper housing part 2, in which a membrane 102 is arranged.
  • the membrane 102 is present once, but may also be present several times.
  • the at least one membrane 102 may be present not only in the upper housing part 2 but also in the lower housing part 1 once or several times.
  • appropriate openings in the production or after the production of the two parts 1, 2 are provided in a suitable number.
  • a cover 103 can be seen, which is arranged over the membrane 102 to the outside. With the cover 103 is effectively avoided that the membrane 102 through external influences (for example rainwater, dirt, steam jets and the like) is damaged.
  • a chamfer 104 is still provided, which causes accumulation in the region of the membrane 102, in particular under the cover 103, of water, dirt or the like, which could adversely affect the service life and the functionality of the membrane 102.
  • FIG. 5 shows that a clamping element 201 can be attached to a contact 200 of the junction box, wherein the clamping element 201 can be brought from a preliminary position into a latching position.
  • the contact 200 and the clamping element 201 are separate parts from each other. These two parts have abutment areas 202, 203 which are correspondingly designed to mate with one another and allow the tensioning element 201 to be held in a preposition on the contact 200 (see the two middle, lower illustrations of FIG. 5).
  • the tensioning element 201 when the tensioning element 201 has been brought into abutment against the contact 200, the tensioning element 201 can be pressed into its locking position by a movement, in particular a movement, by approximately 90 degrees (see right, lower illustration).
  • a movement in particular a movement, by approximately 90 degrees (see right, lower illustration).
  • the contact in particular the flat contact in the form of a ribbon or the like, of the solar element between the contact 200 and the clamping element 201 is clamped.
  • it In order to fix the clamping element 201 to the contact 200, it preferably has a latching clamping region 204 at the end.
  • the mutually corresponding contact areas 202, 203 are again very clearly visible.
  • the contact 200 in the region of its contact area 202 a recess has, with an angled end portion of the clamping element 201, starting from the contact area 203, can engage in this recess.
  • this angled end portion of the clamping element 201 forms a joint together with the recess in the contact area 202 of the contact 200.
  • FIGS. 6 and 7 show another clamping element 205 for attaching a diode to the stamped grid 7.
  • the tensioning element 205 according to FIG. 6 is approximately L-shaped, with a longer leg and a shorter leg. At the shorter leg a latching hook is arranged projecting, the corresponding locking means (in particular a recess or a shoulder) engages behind the stamped grid 7.
  • the clamping element 205 can be fixed to the stamped grid and presses on the outer housing of a diode 206.
  • the diode 206 is fixed in its position within the panel box with the clamping element 205.
  • the clamping element 205 can be removed in a simple manner to replace a defective diode 206.
  • the clamping element 205 is released from the lead frame 7, the diode 206 exchanged and the new diode also mechanically fixed by means of the clamping element 205 again in their position.
  • the electrical contacting of the legs of the diode 206 can also be effected indirectly via the clamping element 205, since this presses on the housing of the diode 206, this force is transmitted to the contact region of the legs of the diode 206 with the lead frame 7.
  • the clamping element 205 nevertheless provides a repair solution.
  • the legs of the defective diode 206 of the lead frame 7 to solve (clip off), which may already have been present, the tensioning element 205 or not. If the diode has been replaced, then advantageously the punched grid further contacts 207 ( Figure 7) are present, which are contacted with the legs of the new replaced diode 206.
  • the lower housing part 1 is connected to the upper housing part 2 via latching means with each other.
  • the locking means are at least once, preferably multiple, present and formed in a preferred form as a projection 300 and thus cooperating latching hook 301.
  • the projection 300 is arranged on the lower housing part 1 and the latching hook 301 on the upper housing part 2.
  • a cover 302 is provided in order to protect the locking means located behind it in the region of the latching means.
  • a predetermined breaking point 303 is provided in the area of the latching means.
  • the latching means in particular the latching hook 301, is thus protected by means of the cover 302 from all sides and can only be actuated from one side, preferably only from above, with the aid of a tool, so that the housing of the Paneidose can be opened.
  • the predetermined breaking point 303 is arranged, which offers a tamper protection.
  • the predetermined breaking point 303 does not have to be in the area of the latching means, but can also be arranged in another area, so that with the aid of the predetermined breaking point it can be seen that an attempt has been made to detach the upper housing part from the lower housing part.
  • the locking means are provided at least twice, wherein the one locking means 304 are disposed inside the shuttle box and the other locking means 305 outside the shuttle box.
  • the latching of the upper housing part 2 with the lower housing part 1 is effected by three latching means, wherein two latching means are located in the interior of the housing and a latching means outside the housing.
  • only one locking means 305 needs to be actuated to open the housing of the shuttle box, whereas due to the opposite arrangement of the two inner locking means 304 a kind of joint is realized, which makes it possible to unfold the upper housing part 2 relative to the lower housing part 1.
  • the upper housing part 2 captive on the Gezzauseuntertei! is arranged.
  • the upper housing part 2 has a recess 306.
  • the lower housing part 1 has no recess, a design may be conceivable in which the lower housing part 1 has such a recess or only the lower housing part 1 has the recess 306 and not the upper housing part 2.
  • a connecting element preferably a cable tie
  • FIGS. 11 to 15 show the means required for strain relief and their functionality, and will be described below.
  • FIG. 11 shows a sleeve 400 which can be pushed onto the connection line 5 and is longitudinally displaceable there, wherein the sleeve 400 is assigned a clamping element 401, which is likewise slid longitudinally movably on the connection line 5.
  • a seal 402 for example, an O-ring, provided.
  • the clamping element 401 has in the direction of the connector 4 protruding arms 401. A and engages in corresponding recesses 4.A of the connector 4 when it has been brought into its final position. Furthermore, the clamping element 401 in the direction of the outgoing connecting line 5 protruding arms 401. B, the arms 401. B press on the connecting line 5 when the sleeve 400 is in its end position.
  • the design of the sleeve 400, the clamping member 401 and the connector 4 allows, when the cable has been introduced in the direction of the interior of the housing of the panel box and pre-fixed in position, a quick and simple, yet effective realization of the strain relief.
  • the sleeve 400 and the clamping element 401 are located in a pre-dispensing position on the connecting line 5.
  • the cylindrical sleeve 400 encloses the clamping element 401, optionally the seal 201, the sleeve 400 with its end facing the junction box (circumferential collar). already been connected to the connector 4 in connection. As a result, now the sleeve 400 is also secured captive to the connector 4 together with the other elements involved.
  • FIG. 15 shows the end position of the components involved for the strain relief.
  • the sleeve 400 has come to rest on a corresponding abutment region of the connector 4, so that it is in its end position.
  • the clamping element 401 and, if present, the seal 402 are in their final position.
  • the clamping member 401 due to its design that the protruding arms 401.A press on the outer jacket of the electrical conductor of the connecting cable and thus effectively realize the strain relief. Due to the locking of the elements involved with each other, this Endverrastpositon shown in Figure 15 is permanent established.
  • the sleeve 400 corresponding latching means which correspond to locking means 4.R of the connector 4 (see Figure 11).
  • FIGS. 16 and 17 show that the panel box has additional connection plugs 403, 404 in addition to the two connection plugs 4.
  • These additional connection plug 403, 404 are designed differently in the embodiment shown, but may alternatively be formed similarly.
  • These additional connectors are therefore designed differently from each other in an advantageous manner, because at the outgoing end of the connecting lines 5, not shown, with the connectors 403, 404 differently shaped, but corresponding connector (plug connector) are arranged.
  • the additional connector 403, 404 have advantageously initially no electrical function, but take only the end connectors arranged on the connecting lines 5 before mounting the panel box on the solar element.
  • additional contacts 405, 406 can also be arranged in the additional connection plugs 403, 404.
  • connection plugs 4 it is possible either to carry out an electrical functional test of the panel box or, in addition to connection plugs 4 to increase the power transmission, also to transmit energy or to realize other things with it (such as, for example, a data transmission, if an "intelligence"). housed in the box box).
  • FIG. 17 shows that the additional connection plugs 403, 404 have a test opening 407.
  • This test port 407 may be present only on one of the two additional connectors 403, 404 or, as shown, on both be.
  • a test contact is accessible via the test opening 407, wherein the test contact may be the contact 405, 406 or, alternatively, another contact.
  • the respective test opening 407 is advantageously wearable by a cover.
  • FIG. 17 shows that the cover 408 is formed by a component of the housing upper part 2.
  • the functionality of the panel box after it has been connected to their connecting lines 5, can be checked via the test openings 407 and the test contacts therein, in which case the upper housing part 2 has not yet been mounted. If it turns out that there is a fault, the interior of the junction box is still accessible. However, if it turns out that the junction box is electrically working properly, the upper housing part 2 can be mounted, at the same time the cover 408, which is part of the upper housing part 2, the test port 407 closes. Alternatively, the cover 408 may be an independent component.
  • test opening 407 is accessible from above in the direction of the solar element
  • test opening 409 is arranged from below, that is to say from the underside of the housing lower part 1, with which the panel box is arranged flat on the solar element will, is accessible. If the test port 409 is open at the bottom, the test for functionality must be made before the junction box is fixed to the solar element. If it turns out that the panel box is working properly, can be arranged on the solar element and fastened (for example, glued), so that automatically the hitherto still open test port 409 is closed.
  • a solar module or photovoltaic module converts the light of the sun directly into electrical energy.
  • the module consists of a large number of solar cells that are connected in series or in parallel.
  • Solar modules are available as flexible and rigid versions.
  • Rigid solar modules usually consist of silicon-based solar cells.
  • the solar cells are mechanically protected by the module from environmental influences, z. Hail.
  • Flexible solar modules are based on organic materials and are preferably used in the mobile sector.
  • Solar modules themselves are interconnected in photovoltaic systems individually or as groups. They supply either power-independent consumers such. B. satellites or are used for energy supply to the public grid. The totality of all modules for a photovoltaic system is called solar generator or solar power plant.

Landscapes

  • Photovoltaic Devices (AREA)

Abstract

Boîtier de panneau photovoltaïque comprenant une partie inférieure de boîtier (1) coopérant avec une partie supérieure de boîtier (2), un joint (3) étant prévu entre la partie inférieure de boîtier (1) et la partie supérieure de boîtier (2), ainsi qu'au moins une fiche de raccordement (4) pour une ligne de raccordement (5), un support de contact (6) comportant des contacts étant disposé à l'intérieur du boîtier de panneau photovoltaïque. L'invention est caractérisée en ce qu'un élément de serrage (201) peut être monté sur le contact (200), cet élément de serrage (201) pouvant être amené d'une position initiale en une position de verrouillage.
EP12727638.4A 2011-06-08 2012-06-06 Boîtier de panneau photovoltaïque à contact interne amélioré Withdrawn EP2718982A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011106325 2011-06-08
PCT/EP2012/060750 WO2012168327A1 (fr) 2011-06-08 2012-06-06 Boîtier de panneau photovoltaïque à contact interne amélioré

Publications (1)

Publication Number Publication Date
EP2718982A1 true EP2718982A1 (fr) 2014-04-16

Family

ID=46298396

Family Applications (4)

Application Number Title Priority Date Filing Date
EP12729916.2A Withdrawn EP2718984A1 (fr) 2011-06-08 2012-06-06 Boîtier de panneau photovoltaïque à boîtier amélioré
EP12729408.0A Active EP2718983B1 (fr) 2011-06-08 2012-06-06 Boîtier de panneau photovoltaïque à gestion thermique optimisée
EP12727638.4A Withdrawn EP2718982A1 (fr) 2011-06-08 2012-06-06 Boîtier de panneau photovoltaïque à contact interne amélioré
EP12730824.5A Active EP2718985B1 (fr) 2011-06-08 2012-06-06 Boîtier de panneau photovoltaïque à raccordements externes améliorés

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP12729916.2A Withdrawn EP2718984A1 (fr) 2011-06-08 2012-06-06 Boîtier de panneau photovoltaïque à boîtier amélioré
EP12729408.0A Active EP2718983B1 (fr) 2011-06-08 2012-06-06 Boîtier de panneau photovoltaïque à gestion thermique optimisée

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP12730824.5A Active EP2718985B1 (fr) 2011-06-08 2012-06-06 Boîtier de panneau photovoltaïque à raccordements externes améliorés

Country Status (4)

Country Link
EP (4) EP2718984A1 (fr)
DE (4) DE102012209572A1 (fr)
ES (2) ES2792463T3 (fr)
WO (4) WO2012168327A1 (fr)

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DE102015114289A1 (de) * 2015-08-27 2017-03-02 Phoenix Contact Gmbh & Co. Kg Elektrische Kabelbaugruppe
EP3342006B1 (fr) 2015-08-27 2022-08-03 Phoenix Contact GmbH & Co. KG Ensemble de câbles électriques
CN107394717A (zh) * 2017-08-09 2017-11-24 安徽红桥金属制造有限公司 一种太阳能光伏用接线盒

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DE10334935B3 (de) 2003-07-31 2004-12-23 Harting Electric Gmbh & Co. Kg Anschlusseinrichtung für ein Solarstrommodul
DE102005022226B4 (de) * 2005-05-10 2008-05-15 RUNGE, André Kühlanordnung für in einem Gehäuse angeordnete elektronische Bauelemente
DE102005025976B4 (de) * 2005-06-03 2007-03-15 Günther Spelsberg GmbH & Co. KG Elektrische Anschluß- und Verbindungsdose für ein Solarzellenmodul
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See also references of WO2012168327A1 *

Also Published As

Publication number Publication date
ES2792463T3 (es) 2020-11-11
ES2802024T3 (es) 2021-01-15
EP2718983A1 (fr) 2014-04-16
WO2012168329A1 (fr) 2012-12-13
DE102012209572A1 (de) 2012-12-13
WO2012168328A1 (fr) 2012-12-13
EP2718985B1 (fr) 2020-03-25
WO2012168330A1 (fr) 2012-12-13
EP2718985A1 (fr) 2014-04-16
WO2012168327A1 (fr) 2012-12-13
DE102012209571A1 (de) 2012-12-13
EP2718984A1 (fr) 2014-04-16
DE102012209575A1 (de) 2012-12-13
EP2718983B1 (fr) 2020-03-25
DE102012209576A1 (de) 2012-12-13

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