• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to an inverter (1) having a connection element (15), comprising a holder (14) with a connection element (15) arranged thereon and an electronic part (16) pluggable thereon, which together form the inverter (1), wherein the connection element (15 ) comprises a terminal block (17) for connecting at least one solar module (6) and at least one terminal (18) for the electronics part (16), wherein on the electronics part (16) corresponding connection sockets (19) for pluggable connection to the terminals (18) are arranged, and a DC separator (20). For easy separation of solar modules (6), the connection element (15) by an assembly (21) is formed, wherein at least on one side of the terminal block (17) and the at least one terminal (18) for pluggable connection to the electronic part (16) and between these at least one DC separating element (20) are arranged, and further an actuating element (22) of the DC separating element (20) for mechanically or electronically activating and deactivating the connection between the terminal block (17) and the at least one terminal (18) outside the assembly (21) is arranged.
    公开号:AT510512A1
    申请号:T1639/2010
    申请日:2010-09-30
    公开日:2012-04-15
    发明作者:Michael Humer；Slavica Pestic；Markus Wolfschluckner；Walter Stockinger
    申请人:Fronius Int Gmbh；
    IPC主号:
    专利说明:

    «♦ ψ ·« ♦ • • * # # · · · · · · · · · ·
    The invention relates to an inverter having a connection element, comprising a holder with a connection element arranged thereon and an electronics part which can be plugged together and jointly forming the inverter, wherein the connection element has a connection block for connecting at least one solar module and at least one connection for the electronic part comprising, wherein on the electronics part corresponding connection sockets are arranged for plug-in connection with the terminals, and a DC-separating element.
    An inverter is used to convert the DC voltage of an energy source, or of solar modules in a sinusoidal AC voltage, which can be fed into a supply network or used directly to supply consumers. For this purpose, inverters are known which comprise a holder with a arranged Anschlußseseement and a pluggable electronics part, which together form the so-called plug-in inverter. The connection element comprises connection blocks for connecting at least one solar module and at least one connection for the electronics part. On the electronics part corresponding connection sockets are arranged for pluggable connection to the terminals. Furthermore, the inverter comprises a DC separating element, which is assigned to the electronic part.
    To reduce in particular line losses increasingly higher input DC voltages, for example, up to 1500 volts and above, are used., By a correspondingly high number of photovoltaic modules geschalret in series.
    In the case of service work on photovoltaic systems, it is necessary to disconnect the inverter at least from the DC voltage level, ie the input at the mount, so that the work on the kiektrom ktei.l can be carried out without voltage or the cir- cuit. i. kte i.i can be abolished from hair loss. Usually, the separation performed manually by the operation takes place when the supply lines of the DC side carry current, so that efficient DC separation elements are required for the separation. 2
    Such a DC separator is disposed in the transition region between the sockets on the electronic part and the power part functional modules arranged therein, such as a DC-DC converter, a DC-AC converter, etc., and is usually manually wired through appropriately sized connecting lines .. By attaching or connecting the electronic part to the holder, the connections in the holder are connected to the connection sockets on the electronic part, so that the energy supplied by the solar modules is led via the connection sockets to the DC separator to the function modules connected to it in the electronic part. By actuation, ie deactivation of the DC separator, the electronic part is de-energized and it can be carried out appropriate service work or the electronic part can be removed from the holding part.
    The disadvantage here is that in such a two-part pluggable inverter, the DC separator is arranged in the electronic part. Although the individual components - such as the power unit - can thus be de-energized by deactivating the DC separator, as in the separation of the holder and the ElekLronikteils at the electrical connection point between the interlocking terminals and the sockets, still from the solar modules generated voltage.
    Likewise, it is necessary for the connection lines to be connected to terminal strips or the like with the DC side and the electronic part. By way of example, it is possible to use a change element which has at least one connection block for the side-by-side savings side and is designed with connections for the electronics part. In this case, the connection block is usually designed as a lance or socket, wonei o: e leads of Hhotovortai.kanl.age also a plug or Bucnse auiwersen. iöer.so the connection for the electronic part can be designed as a plug or socket. From u_esen external and in the device internal Verbindungslei lungs and the transitions between plug; n) and socket (s) results in a variety of contact points up to the power section, each representing a contact resistance and thus losses * Λ 4 «< «♦ 4 - 3 - cause.
    The object of the present invention is to reduce the contact points when using a DC separator in a plug-in inverter.
    The object of the invention is achieved by an above-mentioned inverter, in which the connection element is formed by an assembly, wherein at least on one side of the terminal block and the at least one connection for pluggable connection to the electronic part and between these at least one DC Trermelement are arranged and further an actuating element of the DC separating element for mechanical or electro-American activation and deactivation of the connection between the terminal block and the at least one terminal outside the assembly is arranged.
    The advantage here is that the connector to the electronics part when disconnecting the electronic part is already dead. Also results in a small footprint, so that the size of the inverter is minimized. Likewise, no Monta geaufwand and wiring costs for the DC separators required, making wiring errors can be excluded and process reliability is increased during manufacturing. Another advantage is the reduction of joints and contact resistance, which line losses are avoided or reduced. In addition, cable costs are saved which would otherwise be required for the wiring.
    By the measures that a first contact of the DC separator as a contact point of the terminal block, a second contact of the separator is formed as a contact point of the at least one terminal and the Kontakzstellen are arranged so that the distance of the contact points to the size of the Trenr.elemente is tuned, the size of the housing of the Anschluß] ements can be kept minimal in an advantageous manner.
    Vorreilhafterweise at least the Betätigungsclemer.t the DC separator is arranged laterally and possibly at the bottom of the assembly at 4.
    It is also advantageous that the at least one connection and / or the terminal block is formed by a first part of a plug connection, whereby the holder and inverter can be mounted separately and are independent of each other. In addition, a simple, plug-in mounting of the leads to the terminal block, for example, by commercially available multicontact plug, achieved.
    When the actuator is coupled by a locking mechanism with the connector, it can be achieved that the connector can be separated only when the actuation element. is in an OFF position.
    The actuating element is preferably arranged and designed for operation from the outside on an outer wall of the inverter.
    The present invention will be explained in more detail with reference to the accompanying schematic drawings. Show:
    1 shows a schematic overview of an inverter of a photovoltaic system;
    FIG. 2 shows a first schematic embodiment of the arrangement of the connection element according to the invention in the inverter; FIG.
    Fig. 3 shows a second schematic embodiment of the arrangement of the inventive. Connection element in inverter;
    4 shows a third schematic embodiment of the arrangement of the connections according to the invention in FIG. Inverters;
    Fig. B is a detailed schematic representation of the Anschiss se learning ts;
    6 shows a first schematic, three-dimensional illustration of an embodiment of the connection element; and 5
    Fig. 7 is a second schematic, three-dimensional representation of an embodiment of the connecting element.
    By way of introduction, it is stated that identical parts of the exemplary embodiment are given the same reference numerals.
    FIG. 1 shows a structure of a known inverter 1, in detail of an HF inverter. Since the individual components or components and functions of inverters 1 are already known from the prior art, they will not be discussed in detail below.
    The inverter 1 has at least one input DC-DC converter ler 2, a DC link 3 and an output DC-AC converter 4. At the input input DC-DC converter 2, an energy source 5 is angled, which are preferably formed from one or more parallel and / or series-connected photovoltaic modules 6. The inverter 1 and the photovoltaic modules 6 are also referred to as a photovoltaic system or as a PV system. The output of the inverter 1 or of the output D-C-AC converter 4 can be connected to a supply network 7, such as a public or private alternating voltage network or a multi-phase network, and / or with at least one electrical load 8. For example, a consumer 8 is formed by an engine, refrigerator, radio, and so on. Likewise, the consumer 8 can also represent a home care. The individual components of the inverter 1 can be connected to a control device 10 via a data bus 9.
    Preferably, such an inverter 1 serves as a so-called net Zgekcppelter inverter 1, whose Enerqi eir.anaqement is then optimized to feed as much energy into the grid 7. As is known from the prior art, the consumers 8 are supplied via the supply network 7. Of course, a plurality of inverters 1 connected in parallel can also be used. As a result, more energy for operating the consumer 8 can be provided.
    This energy is supplied by the power source 5 and the photovoltaic modules 6 in the form of a DC voltage, which is 6 connected via two connecting lines 11, 12 with the inverter 1.
    The control device 10 of the inverter 1 is formed for example by a microprocessor, microcontroller or computer. Via the control device 10, a corresponding control of the individual components of the inverter 1, such as the input DC-DC converter 2 or the output DC-AC converter 4, in particular the switching elements arranged therein, are made. In the control device 10 for this purpose, the individual control or control processes are stored by appropriate software programs and / or data or characteristics.
    Furthermore, control elements 13 are connected to the control device 10, by means of which the user can, for example, configure the inverter 1 and / or display operating states or parameters-for example by means of light-emitting diodes-and set them. The controls 13 are connected for example via the data bus 9 or directly to the control device 10. Such controls 13 are arranged for example on a front of the inverter 1, so that an operation of au-3er, is possible. Likewise, the controls 13 may also be arranged directly on assemblies and / or modules within the inverter 1.
    In this case, the inverter 1 may comprise a holder 14 with an arranged connection element 15 and a plug-on Elek-cronikteil 16, which together form the so-called plug-in inverter 1.
    Such a change element 1 is described in detail below in conjunction with FIGS. 2 to 7.
    The connection element 15 comprises at least one connection block 17 for connecting at least one solar module 6 and at least one connection 18 for the electronics part 16. At the electron! ktei .1 16 corresponding connection sockets 19 for pluggable connection with the terminals 18 angecrdnet. Furthermore, the inverter 1 comprises a DC Trenr.eierrent 20, which is assigned to the electronic part 16. Such a DC separator 20 7 is in the transition region between the sockets 19 on the electronic part 16 and the power unit function modules arranged therein, such as the DC-DC converter, the DC-AC converter, etc. arranged.
    According to the invention, it is now provided to reduce the losses and contact points by arranging at least one DC separating element 20 in an assembly 21 of the connecting element 15. The connection element 15 is correspondingly formed by an assembly 21, in which at least on one side of the terminal block 17 and the at least one terminal 18 for pluggable connection to the electronic part 16 and between these at least one DC separator 20 are arranged, and an actuating element 22 of DC isolation element 20 for mechanically or electronically activating and deactivating the connection between terminal block 17 and terminal 18 is arranged outside of the assembly 21. As a result, the contacts of the DC separator 20 are connected substantially directly to the leads 23 of the DC side and the electronic part 16. The connection element 15 is thus formed by an assembly 21, in which the terminal block 17, the DC separating elements 20 and the terminals 18 are integrated and the terminals 18 are designed for stretchable connection with the connection sockets 19.
    Thus, the joining of the electrical and mechanical components of the DC separator 20 and connection area of the So-larmodule 6 is made possible to the secondary functional components of the inverter 1.
    As can be seen from the variants described below, the DC separating elements 20 are integrated in the assembly 21, wherein at least the Eingangsskontakce for the leads 23 Glcichspannungsseite are formed as a detachable connection.
    This means that the leads 23 are screwed and / or plugged into the connection blocks 17, for example. Also so-called spring terminals could be used. Thus, the leads 23 can be plugged, the terminal blocks 17 are formed as a first part of a connector 24 and the leads 23, for example, with common plug / Buchse.nelemen ren provided. This contact point for the detachable connection 8 is integrated directly into a first contact 25 of the DC separating element 20 or the first contact 25 is formed as a contact point, so that only one contact point results and no connecting lines are required.
    Likewise, the connection element 15 on the side of the electronic part 16 at least one contact point, which is designed as a connection 18 for the functional components of the electronic part - such as the power unit. In this case, the contact point is integrated in a second contact 26 of the DC separating element 20 or the second contact 26 is formed as a contact point. In this case, the at least one contact point is either connected directly to a printed circuit board of the electronic part 16 or formed as a plug connection 24.
    Thus, the oppositely arranged contact points are essentially part of the DC separating element 20. Accordingly, the contact points are arranged on the edge regions of the assembly 21, so that the leads 23 and the leads - substantially to the electronic part 16 - can be connected to the contact points. Accordingly, the DC separating elements 20 are arranged substantially in the middle of the assembly 21, wherein the assembly 21 also includes the contact points by projections and / or elevations at the edge regions.
    In a direct connection of the contact point with the circuit board, the connection element 15 is completely integrated in the electronic part 16, since, for example, the second contacts 26 of the DC separating elements 20 soldered to the circuit board, or are screwed. Thus, the solder joint or screw 24 forms the contact point. Accordingly, the second contacts 26 formed as terminals 18 are led out of the assembly 21. In this case, the Eiektronikteil 16 is still plug-out forms, if the terminal block IV is designed as a plug-in connection 24. Accordingly, a first part of the plug connection 24 is arranged in the assembly 21 and the second part of the plug connection 24 on the holder 14. Thus, the electronics component 16 is fastened to the connection element 15 on the holder 14. 9
    In the embodiment as a plug connection 24, accordingly, a first part of the plug connection 24, for example the coupling, is integrated as connections 18 in the assembly 21 of the connection element 15. Accordingly, the coupling serves as a contact point and is arranged for example as a projection on the edge of the assembly 21. In this case, the connection element 15 is fastened, for example, to a holder 14 of the inverter 1. Accordingly, the second part of the connector 24 is integrated in the electronic part 16. Thus, the connector 24 is contacted when the electronic part 16 is attached to the bracket 14. In detail, such a connector 24, the WO 2010/091445 Al be removed.
    Thus, the Elektroniktei! 16 on the connecting element 15 which is fixed to the holder 14, are plugged, at the same time the electronic part 16 is fixed to the holder 14.
    Likewise, first of all the electronic part 16 can be fixed, so that the connecting element 15 is fixed to it. The connection element 15 is adapted to the design of the holder 14 and the electron! Accordingly, the terminal block 17 and the at least one terminal 18 and the contact points thereof are arranged on the respective side of the assembly 21 of the connection element 15. So either on the same side, on opposite sides or on a front page and on an upper or our side.
    Since the contact points and the DC isolating elements 20 are integrated in the assembly 21 of the insulating element 15, the contact points substantially correspond to the contacts of the DC elements 20. It can also be said that the contact points are integrated in the contacts and entsorechend at the free end of the contacts are arranged on ge. Thus, the contacts ac-l) C-Trenr.el emente 20 are formed enlarged or adapted to the dimensions of the assembly 21 of the connecting element 15 so that the contacts ßen transitions and interruptions led to the edge of the assembly 21 s_nd. Accordingly, the contacts are also formed and formed the contact points. This means that the contact points for the supply lines 23 are formed, for example, as plugs, for example, as plugs are, wherein the connectors are integrated in the terminal block 17 and the terminals 18 are formed for the Elektronikteii 16 as a coupling, so that both the terminal block 17 and for the terminals 18, a first part of the connector 24 is formed.
    The actuation of the DC separating elements 20 preferably takes place via an actuating element 22 which is arranged on the outside of the assembly 21 of the connecting element 15. As shown, the actuating element 22 is arranged laterally, for example, wherein a single actuating element 22 can switch over all the DC separating elements 20 by means of a mechanically actuated shaft. In this case, the actuating element 22 is arranged, for example, as a push button, as a lever or as a rotary switch on the shaft, so that it is possible to switch between an ON position and an OFF position.
    Preferably, the actuating element 22 can be actuated from outside the housing of the inverter 1. Accordingly, for example, the connection element 15 is positioned at the edge of the housing of the inverter 1, so that the actuating element 22 can be actuated through a corresponding opening in the housing of the inverter 1.
    Of course, the actuator 22 may also be electrically, for example, with a relay, be formed, wherein the actuating element 22 is formed by a button, switch or integrated circuit. In this case, corresponding contacts are guided out of the assembly 21, which is connected to the actuating element 22 and / or with a communication interface. For example, the button is integrated in the housing of the inverter, so that the operation of except, is possible.
    The communication interface enables remote access, for example via the Internet, to the signaling element 22. Thus, the electronic part 16 can be easily switched on and off remotely, for example, during network work. Accordingly, no person on site must be. 11
    With the actuation of the actuating element 22, a locking of the connector 24 can also be made in addition, so that the assembly 21 can only be solved when the actuator 22 is in the OFF position. This locking takes place, for example, by mechanical components which are arranged outside the assembly 21 of the connection element 15 and form the locking mechanism and fix or release the second part of the connection 24 accordingly. Thus, the actuator 22 is coupled to the connector 24 by the latching mechanism. For example, such that a lever 27 is moved as a locking mechanism with the actuating element 22 and preferably engages on both sides of the assembly 21 in a recess in the second part of the connector 24 for fixing. Likewise, the lever 27 - as shown - can also be arranged above, so that the fixation is carried out substantially by the arranged in the center of the connector 24 recess.
    By such a compact construction of the connection element 15, this can be supplemented by additional components, which are required for country-related standards. For this purpose plug and / or contact places are provided on the module, so that, for example, earthing fuses 28, surge arresters or soft earthing can be supplemented, thereby expanding the module 21. Accordingly, these are directly connected to at least one contact point.
    Of course, the AnschlusselemenL 15 also terminals 18 and terminal blocks 17 for the output lines - ie for connection to the WechseispannungsneL z - include. Auel: this Trenneiemente may optionally be anqeordnet, which are switched together with the DC separation elements 20 of the input lines. Likewise, in addition to the power transmission, the connection element 15 can also be used for data transmissions or the like. be.
    In general, it can be said that the number of terminal blocks 17, the terminals 18 and the DC separators 20 is adapted to the power of the inverter 1 and to the configuration of the photovoltaic system. This results in the required * *
    The number of supply lines 23. The number of DC separation elements 20 essentially corresponds to one another the number of leads 23, wherein a common DC Trennele-metit 20 can be used for several leads 23.
    权利要求:
    Claims (9)
    [1]
    Claims 1. An inverter (1) with a Anschlußsiement (15), comprising a holder (14) arranged thereon connection element (15) and a plug-in electronic part (16), which together form the inverter (1), wherein the Anschlußseseiement , (15) comprises a connection block (17) for connecting at least one solar module (6) and at least one connection (18) for the electronic part (16), wherein on the electronics part (16) corresponding connection sockets (19) for pluggable connection to the terminals (16) 18) are arranged, and a DC separating element (20), characterized in that the connection element (15) by an assembly (21) is formed, wherein at least on one side of the terminal block (17) and the at least one terminal (18) for pluggable connection to the electronic part (16) and between which at least one DC separating element (20) are arranged, and further that an actuating element (22) of the DC separating element (20) for mechanically or electronically activating and deactivating the connection between the terminal block (17) and the at least one terminal (18) outside the assembly (21) is arranged.
    [2]
    Second inverter (1) according to claim 1, characterized in that a first contact (25) of the DC separating element (20) as a contact point of the terminal block (17) is formed.
    [3]
    3. Inverter (1) according to claim 2, characterized in that a second contact (26) of the DC separating element (20) as a contact point of the at least one .Anschlusses (18) is formed.
    [4]
    4. Inverter (1) according to one of claims 1 to 3, characterized in that the contact points are so disordered that the distance between the contact points is matched to the size of the DC-Trenr: ele-ments (20).
    [5]
    5. Inverter (1) according to one of claims 1 to 4, characterized in that at least the actuating element (22) of the DC separating element (20) is arranged laterally on the module (21). 14
    [6]
    6. inverter (1) according to one of claims 1 to 5, characterized in that at least the actuating element (22) of the DC separating element (20) is arranged at the bottom of the module (21).
    [7]
    7. inverter (1) according to one of claims 1 to 6, characterized in that the at least one terminal (18) and / or the terminal block (17) by a first part of a plug connection (24) is formed.
    [8]
    8. inverter (1) according to claim 7, characterized in that the Betätigungs.igungselement (22) by a locking mechanism with the connector (24) is coupled.
    [9]
    9. inverter (1) according to one of claims 1 to 8, characterized in that the actuating element (22) for the operation from the outside to an outer wall of the inverter (1) is arranged and formed.
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    US9190927B2|2015-11-17|
    AT510512B1|2015-08-15|
    BR112013007689A2|2016-08-09|
    WO2012040761A8|2012-06-21|
    EP2622724B1|2014-09-10|
    BR112013007689B1|2020-04-22|
    引用文献:
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA1639/2010A|AT510512B1|2010-09-30|2010-09-30|INVERTER|ATA1639/2010A| AT510512B1|2010-09-30|2010-09-30|INVERTER|
    US13/823,870| US9190927B2|2010-09-30|2011-09-30|Inverter with a connector element formed by a connector block and a connector arranged on one side and a DC breaking element arranged inbetween|
    EP11770034.4A| EP2622724B1|2010-09-30|2011-09-30|Inverter|
    BR112013007689A| BR112013007689B1|2010-09-30|2011-09-30|inverter|
    PCT/AT2011/000405| WO2012040761A1|2010-09-30|2011-09-30|Inverter|
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