Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
  • H01R12/50—Fixed connections
  • H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
  • H01R12/592—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connections to contact elements
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
  • H01R4/28—Clamped connections, spring connections
  • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
  • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
  • H01R4/484—Spring housing details
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
  • H01R4/28—Clamped connections, spring connections
  • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
  • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
  • H01R4/4846—Busbar details
  • H01R4/485—Single busbar common to multiple springs
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
  • H01R4/28—Clamped connections, spring connections
  • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
  • H01R4/489—Clamped connections, spring connections utilising a spring, clip, or other resilient member spring force increased by screw, cam, wedge, or other fastening means
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
  • H01R9/22—Bases, e.g. strip, block, panel
  • H01R9/24—Terminal blocks
  • H01R9/2416—Means for guiding or retaining wires or cables connected to terminal blocks
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
  • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
  • H02G3/02—Details
  • H02G3/08—Distribution boxes; Connection or junction boxes
  • H02G3/081—Bases, casings or covers
  • H02G3/083—Inlets
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
  • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
  • H02G3/02—Details
  • H02G3/08—Distribution boxes; Connection or junction boxes
  • H02G3/16—Distribution boxes; Connection or junction boxes structurally associated with support for line-connecting terminals within the box
• • 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
• • H—ELECTRICITY
  • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
  • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
  • H10F77/00—Constructional details of devices covered by this subclass
  • H10F77/93—Interconnections
  • H10F77/933—Interconnections for devices having potential barriers
  • H10F77/935—Interconnections for devices having potential barriers for photovoltaic devices or modules
  • H10F77/939—Output lead wires or elements
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R2103/00—Two poles
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
  • H01R24/58—Contacts spaced along longitudinal axis of engagement
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
  • H01R4/28—Clamped connections, spring connections
  • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
  • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
  • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
  • H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
  • H01R4/4821—Single-blade spring
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
  • H01R4/28—Clamped connections, spring connections
  • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
  • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
  • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
  • H01R4/483—Pivoting arrangements, e.g. lever pushing on the spring
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
  • H01R4/28—Clamped connections, spring connections
  • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
  • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
  • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
  • H01R4/4833—Sliding arrangements, e.g. sliding button
• • 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
• • 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
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/49002—Electrical device making
  • Y10T29/49117—Conductor or circuit manufacturing

Definitions

• the invention relates to a connection and connection box for a photovoltaic solar module with flexible flat conductor strips which protrude from the surface of the solar module and to a method for connecting a connection and connection box to a solar module.
• photovoltaic solar modules have experienced a veritable boom in recent years, partly because of the increased demand for environmentally friendly energy production.
• the direct conversion of sunlight into electricity by means of photovoltaic solar modules is completely emission-free and involves almost no risks for humans and the environment. Therefore, recently, for example, in new buildings whole roofs with solar modules occupied and even
• Solar modules typically consist of a plurality of solar cells based on semiconductors, which are interconnected to form large-area solar panels.
• a typical solar module has on the side facing the sun a glass pane and on the back a transparent
• the back of the solar module is typically with a weather-resistant plastic composite film, z.
• a weather-resistant plastic composite film As polyvinyl fluoride and polyester, laminated.
• the monocrystalline or polycrystalline solar cells are electrically interconnected by soldering strips.
• the solar module is still installed in a metal profile frame for attachment and stiffening of the composite.
• a solar module is therefore basically a planar structure, similar to a thick glass pane.
• connection and junction box is typically glued to the rear surface of the solar module and has inside electrical connection means for Contacting the flexible flat conductor strips of the solar module.
• connection and connection box optionally has a device for connecting an electrical connection cable, which by means of the connection and junction box with the flexible
• Flat conductor band of the solar module is connected to dissipate the electric power generated by the solar module.
• Module a so-called bypass or freewheeling diode is switched.
• the freewheeling diode is connected to the electrical connection device within the connection and connection box. Without a bypass diode, if a module is shaded or does not provide power due to a defect, this module would reduce or even damage the performance of the series-connected solar modules.
• the bypass diode prevents this because the current flows through the diode and is maintained.
• junction boxes are known, which are placed over the flexible flat conductor strips and wherein the flexible flat conductor band is bent by hand and contacted by means of a terminal or a solder joint. In a further operation then the junction box is closed.
• connection devices or junction boxes are described in DE 10 2005 025 632 A1 and DE 20 2005 018 884 Ul. It can be seen that the assembly of such connecting devices or Junction boxes is cumbersome and these are difficult for automated mass production.
• connection and junction box for a photovoltaic solar module which is simple, fast and efficient, in particular automated, e.g. with a robot, to which solar module can be connected.
• Another object of the invention is to provide such a junction box that provides high contact reliability and longevity.
• Another object of the invention is to provide such a connection and junction box, which avoids the disadvantages of the prior art or at least reduces and is inexpensive to manufacture and assemble.
• the object of the invention is solved by the subject matter of the independent claims. Advantageous developments are the subject of the dependent claims.
• connection and connection box for a photovoltaic solar module for contacting one or more flexible flat conductor strips which protrude from the surface of the solar module.
• connection and junction box comprises a dielectric housing for mounting on the solar module and with an insertion opening at the bottom of the housing.
• underside is not to be understood in the sense of an absolute orientation in space, but as the underside of that side of the connection and connection box or the housing is called, which faces the solar module in the mounted state, ie the side comes to the solar module to the plant.
• the connection and junction box is attached to the sun-facing back of the solar module.
• an insertion opening is provided, in which the flat conductor tape is automatically inserted when the housing is slipped over the flat conductor band with the insertion opening.
• the insertion opening is formed in particular substantially larger than the dimension of the flat conductor strip, so that the flat conductor strip straight and without being guided by this, can be freely inserted into the housing. This has the advantage that the flat conductor strip does not abut against the housing and thus the risk of damage to the sensitive flat conductor strip, in particular buckling during insertion, can be avoided.
• an electrical connection device is arranged, which has a contact terminal for electrically contacting the flexible flat conductor strip.
• the contact terminal In the assembled state, in which the housing is placed on the solar module and slipped over the flat conductor strip, the contact terminal is opened, so that the sensitive flat conductor band can be inserted as possible without abutting in a free space within the open contact terminal.
• the contact terminal In this room area is the
• this space region of the contact terminal is referred to as the trapping space region.
• the flat conductor tape holds and electrically contacted.
• the closing of the contact terminal ie the transfer of the connection and connection box from the mounting state to the contact state is carried out by active actuation of the contact terminal, by means of an actuator when the connection and junction box is placed on the solar module and the flexible flat conductor tape is inserted into the housing.
• the operation can be carried out directly in the placement process in a single step or after placement in a second step.
• the actuating device comprises an actuating projection within the housing, for example an actuating rib or an actuating pin, which acts on the opened contact terminal and thereby closes it.
• the active closing of the contact terminal in the present invention allows a selectable by the design of the contact terminal, and thus, if desired, high contact force of the clamping of the flat conductor band, which is advantageous from the
• the housing is formed at least in two parts and the two housing parts are movable relative to each other, e.g. displaceable relative to each other. Furthermore, in the assembled state, the first of the two housing parts projects beyond the second of the two housing parts on the side facing the solar module. When placing the connection and junction box therefore initially only the first of the two housing parts comes to the solar module to the plant.
• the connection device is attached to this first housing part. By pressing the second housing part in the direction of the solar module, the relative displacement between the two housing parts and thus also of the second housing part relative to
• connection device set in motion since the first housing part with the connection device is supported on the solar module and the actuating device, which is attached to the second housing part, automatically closes the contact terminal.
• the contact terminal can thus be closed exclusively by attacking the housing from the outside and without manual intervention in the housing interior.
• one of the two housing parts for this purpose has a plurality of guide sleeves and the other housing part hereby corresponding guide pins, which together form a linear guide perpendicular to the surface of the solar module.
• the guide pins are particularly preferred in the guide sleeves not yet fully inserted and set self-locking or -klemmend in this position, so that when the second housing part, for example, taken by a mounting robot and placed on top of the solar module, the first housing part with the connection device does not fall or fall out.
• the self-locking of the displacement device is overcome by applying force to the second housing part in the direction of the solar module to cause the relative displacement of the second relative to the first housing part and close the contact terminal by means of the actuating device on the second housing part ,
• the closing of the contact terminal thus takes place automatically when placing the connection and junction box, caused by the relative displacement.
• Connection and junction box on the solar panel only needs to perform a linear motion perpendicular to the solar panel.
• the first housing part is accordingly designed as a base element for contact with the solar module, but at the same time serves as a holder for the connection device, which is fixedly connected to the floor element.
• the bottom element for example, latching elements by means of which the connection device is latched to the bottom element.
• the second housing part is designed as a cover part. At least one of the two housing parts, preferably the cover part, has circumferential side walls, so that the first and second housing part together, except for predefined openings, for example on the underside and on the Side walls for inserting the connection cable defines a closed and splash-proof box for the connection device, when the housing is firmly connected in the contact state with the solar module.
• the lid part is hat-shaped and has a peripheral edge with a Klebstoffnut to stick the lid member in the contact state on the surface of the solar module.
• both the bottom element and the cover element are flush against the solar module.
• the floor element does not necessarily cover the entire floor of the connection and junction box, but it is sufficient to dimension the floor element insofar that it performs its function for supporting on the solar module and for attaching the connection device suffice.
• the bottom element may be glued to the solar module in addition to the cover element.
• the contact clip is preferably as a spring clamp with a clamping spring, e.g. formed from spring metal and a counter-clamping element, wherein the spring-loaded terminal is opened in the assembled state of itself and is closed by application of force by means of the actuating device.
• the clamping spring has a latching mechanism which locks the clamping spring in the open state, e.g. in the form of latching lugs, which are set in the mounting state behind projections on a support frame of the contact terminal surmountable inhibiting. This ensures that the contact terminal is held securely open during handling until it is closed by overcoming the open-latching actively by the actuator.
• a contact terminal is used, in which the clamping spring and / or the counter-clamping element is pivotally mounted on the support frame of the connecting device. The actuation of the contact terminal then causes a pivoting movement of at least one of the clamping spring or the counter-clamping element for closing the contact terminal and thus the electrical contact with the flexible
• the contacting of the flat conductor ribbon is preferably at an angle to the solar module normal (e.g., 45 ° or 90 °).
• the contact force of the contact terminal between the two contact elements has a vector component perpendicular to the surface of the solar module.
• the deflection device in the second-mentioned embodiment comprises a reversing lever, which is actuated when the connection and junction box is placed on the solar module and the flexible flat conductor strip after insertion through the insertion opening in the housing to the contact terminal bends over, so that the flexible flat conductor band after bending into the trapping area the contact terminal protrudes and then detected by this by closing the contact terminal and electrically contacted.
• the contact terminal is not pressed by means of the thin ribbon conductor, but the flat conductor band initially substantially resistance free completely through the insertion opening into an open space area in the housing of the connection and junction box is introduced.
• the insertion opening is considerably larger than the cross-sectional dimensions of the flat conductor strip.
• the connection and junction box has a certain tolerance with respect to the lateral positioning on the solar module.
• FIG. 1 is a perspective view from above of the housing cover of a first embodiment of the
• FIG. 2 shows a perspective view from below on and into the housing cover from FIG. 1,
• Fig. 3 shows a cross section transverse to the solar module through the connection and junction box according to the first Embodiment with the electric
• FIG. 4 shows a cross section transverse to the solar module through the
• FIG. 5 is a perspective view of two
• FIG. 6 shows a perspective enlarged view of one of the connection devices from FIG. 5
• FIG. 7 shows a perspective view from above onto the connection device with the floor element according to the first embodiment
• FIG. 8 shows a perspective view from below of and into the housing cover from FIG. 7,
• FIG. 9 shows a cross section transversely to the solar module through the
• FIG. 11 is a cross-section transverse to the solar module through the connection and connection box of FIG. 9 with the
• Fig. 12 is a perspective partially sectioned
• connection and connection box has a housing cover 2 made of plastic.
• the housing cover 2 is formed by a substantially rectangular frame consisting of four side walls 2a to 2d and a closed cover plate 2e connecting the four side walls and running parallel to the solar module.
• the five-sided closed and downwardly open housing cover 2 is z.
• B integrally molded from plastic. Separate anti-kink sleeves 6 (see Fig. 3 and Fig. 4) are used in connection cable bushings 4.
• the housing cover 2 is open at the bottom and has an outwardly projecting mounting frame 8 with a circumferential adhesive groove 10, so that the housing cover 2 has a hat-like shape.
• the connection and connection box is finally permanently adhered to the solar module.
• the hat-shaped or trough-like shape of the housing cover forms an inner cavity 12, in which the connecting devices, not shown in Fig. 2 are housed in the assembled state substantially waterproof.
• Connection cable bushings 4 is provided between two guide pins 14, a clamping web 17 for the connecting cable, not shown. Furthermore, the
• Housing cover 2 are formed. Referring to FIG. 3, two identical connection devices 20 are arranged in the housing 3 formed by the housing cover 2 and bottom element 50 of the connection and connection box 1. Since the two connection devices 20 are identical, only one of the two connection devices 20 will be referred to below.
• Fig. 3 shows the connection and junction box in the assembled state in which the contact terminal 22 is opened.
• the bottom element 50 to which the connecting device 20 is attached has guide sleeves 15, in which the guide pins 14 are inserted.
• the guide pins 14 clamp in the associated guide sleeves 15, such that when placing the connection and junction box 1 on the solar module 24, the bottom member 50 clamped to the
• Housing cover 2 is held, so that the housing 3 can be taken on the housing cover 2 by a robot and automatically placed without the bottom element 50 and the connecting device 20 fall out.
• the clamping between the guide pins 14 and the guide sleeves 15 is overcome by applying force to allow a relative displacement between the housing cover 2 and the bottom member 50 with the connecting device 20, namely, when a minimum force is exceeded.
• the guide sleeve 15 is slotted in this example in order to improve the overcoming clamping interaction with the guide pin 14.
• Connecting device 20 is not yet fully inserted into the housing cover 2 and the bottom element 50 still protrudes a bit far (a few millimeters) from the housing cover 2 down, ie on the solar module side facing out. It consists in the assembled state
• an offset between the bottom 50a of the bottom member 50 and the mounting frame 8 of the housing cover 2 so that when placing the connection and junction box 1 first, the bottom element 50 comes into contact with the solar module 24 and in this state shown in Fig. 3 of the mounting frame 8 is still spaced from the surface 24 a of the solar module 24.
• the bottom element 50 has a relatively large opening 26 on its underside 50a facing the solar module 24. This ensures that the sensitive, flexible flat conductor strip 28, the so-called “ribbon”, can be introduced into the housing 3 and the connection device 20 without obstacle and resistance from below through the insertion opening 26 in the opened mounting state. As a result, the risk of damage to the flat conductor strip 28 is reduced.
• the contact terminal 22 defines in this state an open Einfangraum Society 31, in which the flat conductor strip 28 immersed without resistance when placing the connection and junction box from below. Preferably, no contact between the contact terminal 22 and the flat conductor strip 28 takes place in this state, so that the insertion and contacting of the flat conductor strip 28 takes place in two successive steps.
• the housing cover 2 is now subjected to force against the solar module 24, wherein the bottom element 50 is supported on the solar module 24.
• This condition is shown in FIG.
• the housing cover 2 is adhered to the solar module by means of the adhesive present in the adhesive groove 10.
• the floor element 50 may but need not be glued to the solar module 24.
• the actuator 18, in this example, an actuating web with the clamping spring 32.
• the contact terminal 22 is closed by means of a pivoting movement of the clamping spring 32.
• the clamping portion 34 of the clamping spring 32 passes over the Einfangraum Scheme 31 and captures the upper end of the flat conductor strip 28 in order to clamp this between the clamping portion 34 of the clamping spring 32 and the counter-clamping member 36 electrically contacting.
• the flat conductor strip 28 is angled, since the
• Counter clamping element 36 is inclined in this example, approximately at 45 ° to the solar module normal.
• the clamping spring 32 has an actuating portion 38 which is divided into a curved portion 40 and a substantially straight portion 42.
• the actuating element 18 When closing, the actuating element 18 first acts on the curved portion 40 (see Fig. 3) and biases in the illustrated in Fig. 4, closed contact state of the connection and junction box 1 against the straight
• connection device 20 also has a cable connection terminal 46 for the electrical connection cable, not shown.
• the cable connection terminal 46 is also provided with a clamping spring 48, but here also other connection variants, such. B. screw terminals are used.
• connection and junction box 1 comprises two identically formed connection devices 20 for simultaneously contacting two flat conductor strips 28.
• connection and junction box 1 also only one or more than two connection devices 20 may include.
• the terminal device 20 is attached to the bottom member 50, which in this example is in the form of a dielectric carrier, preferably made of plastic.
• the underside 50a of the bottom element 50 defines the primary abutment surface to the solar module 24 and the insertion opening 26.
• the connecting device 20 further has a substantially U-shaped metallic support frame 51, preferably made of copper, which is latched to the bottom element 50 with latching hooks 52.
• Figs. 5 and 6 show the contact terminal 22 in the closed contact state in which the contact terminal 22 is latched.
• the clamping spring 32 has two locking pins 54, which are engaged behind corresponding projections 55 in the metallic holding frame 51. In the locked state, the contact spring 32 is biased against the counter-clamp 36. This ensures one permanent and safe electrical contact.
• the flat conductor strip 28 is not shown in FIGS. 5 and 6.
• clamping spring 32 is suspended by means of bearing pin 56 in slotted bearing openings 58.
• the clamping spring 32 can be easily used in the manufacture of the connection and junction box and is secured due to the rotated in the assembled state and contact state relative to the slot 60 position of the flat bearing pin 56.
• the clamping spring 32 is stamped from sheet steel and bent substantially U-shaped.
• the metallic support frame 51 further includes an electrical connection element 64 for the bypass diode, which is supported on the base element 50 by means of a base 62.
• connection and junction box 1 Due to the shape of the two sections 40, 42 of the actuating portion 38 of the clamping spring 32, the clamping spring 32 is fixed in the open mounting state so that the Einfangraum Scheme 31 is kept open in the assembled state.
• the flat conductor ribbon 28, which is located in the catching space region 31, is received by the clamping portion 34 and pressed by the continued pivotal movement at an angle of, in this example 45 °, against the counter-clamping element 36.
• the clamping spring engages with its locking lugs 54 in the contact or operating state (FIG. 4) in the metallic holding frame 51.
• Connection device 20 to be able to arrange with the bottom element 50 at laterally different positions in the housing cover 2.
• FIGS. 7 and 8 show a connection and junction box 1 according to a second embodiment of the invention, in which the housing cover 2 is designed to be square in order to arrange two connection devices 20 side by side rather than in succession as in the first embodiment (FIGS. 1-6). Since the contact terminal 22 and the displacement device 14, 15 are formed in the first and second embodiments largely the same, is on the above description of the first
• the underside of the cover plate 2e has a first actuating device 16 in the form of a lateral cam for actuating the reversing lever (not shown in FIG. 8, cf. FIG. 9-11). Furthermore, actuating pins 18 for actuating the contact terminals protrude from the cover plate 2e into the inner space 12 of the housing cover 2.
• the cam 16 and the actuating device 18 are in This embodiment is formed integrally with the housing cover 2.
• connection device 20 is arranged in the housing 3 of the connection and connection box 1.
• this junction box also has two identical terminal devices 20, with only one of the two being referred to hereinafter.
• Fig. 9 shows the connection and connection box after it has been slipped over the flat conductor strip 28.
• the junction box is located when slipping in a first state, the mounting state in which the lever 21 is in a first position.
• the gap region 30 is kept free above the insertion opening 26 and the contact clamp 22 is opened.
• connection and junction box 1 has a relatively large insertion opening 26 on its side facing the solar module 24 underside. This ensures that the sensitive, flexible flat conductor strip 28, the so-called “ribbon", in the assembled state, is introduced from below into the connection and connection box 1 without obstacle and resistance. As a result, the risk of damage to the flat conductor strip 28 is reduced.
• the connection and junction box 1 defines in this state a located between the contact terminal 22 and the lever 21 open intermediate or Ein 1500raum Society 30, in which the flat conductor strip 28 immersed without resistance when placing the connection and junction box from below. Preferably takes place in this Condition still no contact between the contact terminal 22 or the reversing lever 21 and the flat conductor strip 28 instead.
• the housing cover 2 For contacting the flat conductor strip 28, the housing cover 2 is now subjected to force against the solar module 24, wherein the connection device 20 is supported on the solar module 24. This results in a linear relative displacement between the housing cover 2 and the bottom member 50 with the connecting device 20 to the effect that the housing cover 2 is pushed over the connecting device 20 until the mounting frame 8 with the adhesive located in the Klebstoffnut 10 adhesive (not shown) on the Surface of the solar module 24 comes to rest and the bottom 50 a of the bottom member 50 and the housing cover 2 abut flush with the solar module 24.
• This closed contact state represents the end or operating state and is shown in Fig. 11. In the operating state, the housing 3 is glued to the solar module 24 by means of the adhesive located in the adhesive groove 10.
• connection and junction box 1 Before the connection and junction box 1, however, enters the final state, it still passes through the intermediate state shown in Fig. 10, in which the flat conductor strip 28 is already bent over and the
• the junction box 1 defines three predefined states, namely the mounting state ( Figure 9), in which the lever 21 is in a first position, so that the insertion space 30 is free and the contact terminal 22 is open; the intermediate state ( Figure 10), in which the flat conductor strip 28 is bent by the reversing lever 21 in the Einfangraum Society 31 of the still open Kunststoffaktklemme 22; and the end or operating state (FIG. 11), in which the contact terminal 22 is closed, and the electrical contact with the flat conductor strip 28 by means of
• the contacting of the flat conductor strip 28 is parallel to the surface of the solar module 24th
• first the first actuating element 16 in this example an actuating cam, interacts with the reversing lever 21 and subsequently the second actuating element 18, in this example
• the cam 16 is formed in this example as a projection of the side wall of the housing cover 2 integral therewith. Subsequently, the clamping portion 34 of the clamping spring 32 passes over the catching space portion 31 of the contact terminal and clamps and contacts free ends of the flat conductor band 28 between the clamping portion 34 of the clamping spring 32 and the counter-clamping member 36.
• the bending portion 21a of the reversing lever 21 is integrally formed by means of a hinge hinge 21b with a holding portion 21c connected. Of the Retaining portion 21c is fixed to the bottom member 50, more precisely integrally formed therewith.
• the junction box 1 in this example comprises two
• connection devices 20 are attached to the top side of the dielectric base element 50.
• Fig. 12 shows the contact terminal 22 in the open mounting state.
• the clamping spring 32 has two locking pins 54, which are clamped in the open mounting state each in recesses 53 in the metallic support frame 51 surmountable.
• connection and junction box can have one or a plurality of contact terminals in order to connect one or a plurality of flat conductor strips in the connection and connection box to contact.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Photovoltaic Devices (AREA)
• Connector Housings Or Holding Contact Members (AREA)
• Details Of Connecting Devices For Male And Female Coupling (AREA)

Priority Applications (6)

Applications Claiming Priority (9)

Publications (2)

Family

ID=41153234

Family Applications (2)

Family Applications After (1)

Country Status (7)

Cited By (5)

Families Citing this family (26)

Citations (7)

Family Cites Families (12)

• 2008
  • 2008-02-04 EP EP08707533A patent/EP2115838A1/de not_active Withdrawn
  • 2008-02-04 CN CN2008800040872A patent/CN101606293B/zh not_active Expired - Fee Related
  • 2008-02-04 WO PCT/EP2008/000859 patent/WO2008095670A1/de not_active Ceased
  • 2008-02-04 US US12/525,794 patent/US8366471B2/en not_active Expired - Fee Related
  • 2008-02-04 ES ES08707534T patent/ES2385112T3/es active Active
  • 2008-02-04 EP EP08707534A patent/EP2118977B1/de not_active Not-in-force
  • 2008-02-04 DK DK08707534.7T patent/DK2118977T3/da active
  • 2008-02-04 WO PCT/EP2008/000858 patent/WO2008095669A1/de not_active Ceased
  • 2008-02-04 JP JP2009548614A patent/JP5441716B2/ja not_active Expired - Fee Related

Patent Citations (7)

Also Published As

Similar Documents

Legal Events