EP3855572A1 - Borne de liaison - Google Patents

Borne de liaison Download PDF

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Publication number
EP3855572A1
EP3855572A1 EP21152524.1A EP21152524A EP3855572A1 EP 3855572 A1 EP3855572 A1 EP 3855572A1 EP 21152524 A EP21152524 A EP 21152524A EP 3855572 A1 EP3855572 A1 EP 3855572A1
Authority
EP
European Patent Office
Prior art keywords
housing
wire
less
lever
equal
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Withdrawn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
EP21152524.1A
Other languages
German (de)
English (en)
Inventor
Vincenzo Viola
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.)
Viola Direkt GmbH
Original Assignee
Viola Direkt 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 Viola Direkt GmbH filed Critical Viola Direkt GmbH
Publication of EP3855572A1 publication Critical patent/EP3855572A1/fr
Withdrawn legal-status Critical Current

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    • 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
    • H01R4/48365—Spring-activating arrangements mounted on or integrally formed with the spring housing with integral release 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
    • 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
    • H01R4/48455—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar insertion of a wire only possible by pressing on the spring

Definitions

  • the invention relates to a connecting terminal, for example for clamping lead wires, which comprises a housing which comprises an elastically deformable busbar arranged in the interior of the housing and at least two wire openings for inserting a respective wire into the housing, and a number of levers corresponding to the wire openings, wherein each lever is assigned to a wire opening and is pivotably mounted on the housing for pivoting between an open and a closed position, wherein a pivoting of the lever elastically deforms a portion of the elastically deformable busbar associated with the lever and the wire opening in such a way that a Through-opening adjoining wire channel has a wire insertion cross-section in the open position and a wire clamping cross-section in the closed position.
  • lever clamps Connecting clamps with levers, also called lever clamps, are known from the prior art and are often used in practice, since they have numerous advantages over conventional plug-in terminals. These are, for example, that inserting and withdrawing a wire into a lever clamp is much easier and does not damage the wire. An injured wire can have a higher contact resistance and, if it is clamped again, can lead to heating of the connection and thus, in unfavorable cases, to damage to connected devices. With the use of lever clamps, a wire can be clamped several times without having to fear the damage mentioned. Lever clamps also enable quick and easy handling, maintenance-free installation and a permanently secure connection.
  • plug-in terminals known from the prior art should not be used multiple times, since a spring used therein cannot reliably exert a pressure to be exerted on the wire to be contacted on small wire cross-sections if a wire with a larger wire cross-section has been clamped beforehand.
  • the pure plug-in terminals known from the prior art have the advantage that their space requirements, i.e. their height, width and length dimensions, are small and thus a high wiring density can be achieved, which is particularly advantageous if the ones that are available Junction boxes or Device junction boxes, in which several of the connecting terminals are to be stowed, offer little space.
  • lever clamps known from the prior art require more space, which considerably restricts the wiring density when there is limited space in the junction box or device connection box.
  • the present invention is based on the object of providing a connecting terminal which enables a high wiring density and repeated clamping of a wire.
  • connection terminal there is a ratio between a maximum height of the housing, measured from a housing bottom to a housing top, on which the levers are arranged, and a maximum length of the housing, measured from a housing front, in which the wire openings are arranged are, to a housing rear side, which is opposite to the housing front side, between approximately 1: 1.6 and 1: 2.3. In a preferred embodiment this ratio is about 1: 1.9.
  • the connecting terminal comprises a lever that can be pivoted between an open position and a closed position (rest position).
  • the lever can act on a section of the elastically deformable busbar in such a way that it is elastically deformed and thus increases a cross section of the wire channel adjoining the wire opening compared to the closed position in the open position of the lever present cross section of the wire channel is referred to as wire insertion cross section. Due to the aforementioned deformation of the busbar, a wire can simply be inserted into the wire channel in the open position.
  • the wire insertion cross section can be defined by the busbar, the lever and an inner surface of the housing.
  • the section of the elastically deformable busbar deformed by the lever can be elastically deformed due to its spring force in such a way that the wire channel becomes one in the closed position of the lever Has wire clamp cross-section which is smaller than the wire insertion cross-section.
  • the wire clamping cross-section can also be defined by the busbar, the lever and the inner surface of the housing.
  • the busbar In the closed position of the lever, the busbar can exert a clamping force on the wire, whereby the wire can be clamped at least between the inner surface of the housing and a section of the busbar. This clamping can ensure electrical contact between the busbar and a clamped wire.
  • the lever can be moved several times from the open to the closed position and vice versa, for example in order to remove a wire that has already been clamped in the connecting terminal or to clamp a new wire in it.
  • the advantage of the present invention is that a certain ratio of the housing of the connecting terminal with respect to its maximum height and maximum length is provided, which allows a space-saving design of the connecting terminal. In this way, a high wiring density and clear wiring can be achieved in conventional switch cabinets, junction boxes or device connection boxes.
  • the maximum height of the housing is preferably equal to or less than 10.00 mm. It is preferably provided that the maximum height of the housing is equal to or less than 9.50 mm. In the case of a space-saving, yet easy-to-use connecting terminal, the maximum height of the housing is particularly preferably between 7.50 mm and 9.50 mm.
  • the maximum length of the housing is preferably equal to or less than 17.50 mm. It is further preferably provided that the maximum length of the housing is equal to or less than 17.30 mm. In the case of a space-saving, yet easily manageable connecting terminal, the maximum length of the housing between 15.30 mm and 17.30 mm is particularly preferred.
  • the connecting terminal can be designed for a different number of connections. This means that the right connection terminal can be selected for every wiring task.
  • a connecting clamp which uses two wire openings with an adjoining wire channel as well as a respectively assigned busbar and a respectively assigned lever.
  • this is a maximum width of the housing, measured from a first housing side wall to a second housing side wall, each of which adjoins the front side of the housing, equal to or less than 12.50 mm.
  • the maximum width of the housing is equal to or less than 12.00 mm.
  • the maximum width of the housing between 10.00 mm and 12.00 mm is particularly preferred.
  • this is a maximum width of the housing, measured from a first housing side wall to a second housing side wall, each of which adjoins the front side of the housing, equal to or less than 17.00 mm. It is preferably provided that the maximum width of the housing is equal to or less than 16.50 mm. In the case of a space-saving, yet easy-to-use connecting terminal with three wire openings, the maximum width of the housing between 14.50 mm and 16.50 mm is particularly preferred.
  • this is a maximum width of the housing, measured from a first housing side wall to a second housing side wall, each of which adjoins the front side of the housing, equal to or less than 26.00 mm. It is preferably provided that the maximum width of the housing is equal to or less than 25.50 mm. In the case of a space-saving, yet easy-to-use connecting terminal with five wire openings, the maximum width of the housing between 24.00 mm and 25.50 mm is particularly preferred.
  • the wire opening tapers in the direction of the wire channel, the wire opening preferably having a wire opening height on the front of the housing which is equal to or less than 6.55 mm. It is preferably provided that the wire opening height is equal to or less than 6.05 mm. In the case of a space-saving, yet easy-to-use connecting terminal, the wire opening height is preferably between 5.05 mm and 6.05 mm. The same is achieved if the wire opening on the front side of the housing has a wire opening width which is equal to or less than 2.95 mm. It is preferably provided that the wire opening width is equal to or less than 2.70 mm. In the case of a space-saving, yet easy-to-use connecting terminal, the wire opening width between 1.70 mm and 2.70 mm is particularly preferred.
  • the connecting clamp can be designed to clamp wires, for example copper wire, with a wire cross-sectional area of 0.2 mm 2 , 1.0 mm 2 , 1.5 mm 2 and / or 2.5 mm 2 .
  • a wire opening cross-section of the wire opening and the wire insertion cross-section of the wire channel are preferably selected such that when the lever is in the open position, a wire with a wire cross-sectional area equal to or less than 2.5 mm 2 can be inserted through the wire opening into the wire channel is that it is adjacent to an elastically deformable section of the conductor rail associated with this wire opening, and is clamped between this section of the conductor rail and the inner surface of the housing when the lever is moved into the closed position.
  • the lever can laterally delimit the wire channel and thus contribute to holding or guiding the wire.
  • the above information on the wire cross-sectional area preferably relates to wires, preferably copper wires, which are stripped of insulation, i.e. are no longer surrounded by an insulating layer, so that the information on the wire cross-sectional area relates to the cross-section of the actually conductive wire area.
  • the wires can be single, fine or stranded or stranded.
  • all types of conductors can also be clamped using the connecting clamp without pretreatment.
  • the wire channel adjoining the wire opening has a cross-sectional area of less than 6.5 mm 2 , preferably more than 2.5 mm 2 when the lever is in the open position.
  • the connecting terminal can be made particularly small if the components it comprises are arranged in a particularly space-saving manner.
  • the housing is composed of two parts, a front housing part encompassing the front of the housing and a rear housing part encompassing the rear of the housing, wherein, in a state in which the front and rear housing parts are connected to each other, a portion of the rear housing part preferably overlaps a portion of the lever when the connecting terminal is viewed from a side view when it rests on its housing underside.
  • a portion of the rear housing part is preferably located above a portion of the lever, preferably above an engaging portion of the lever described later.
  • one of the rear and front housing parts preferably the rear housing part
  • one of the front and rear housing parts or both housing parts can be made of a transparent material, whereby the arrangement of the components, such as the busbar and the lever, can be seen by an operator. This enables, for example, an assessment by the operator as to whether the wire has been correctly inserted into the connecting terminal.
  • the housing can comprise a colored material, for example the rear housing part can be colored. Coloring one or both of the housing parts can also indicate a certain type of connecting terminal, for example a connecting terminal with a certain number of connections, so that in practice different connecting terminal types can easily be distinguished.
  • the wire channel can be limited, for example, by a section of the busbar, the inner surface of the housing and the lever.
  • the lever preferably provides a lateral delimitation of the wire channel between the section of the busbar and the inner surface of the housing.
  • the lever preferably has two arms that are spaced apart from one another. The distance between the arms is preferably adapted to the wire cross-sectional area of the wire to be clamped and can be equal to or less than 2.55 mm. It is preferably provided that the distance between the arms of the lever is 2.30 mm. A distance between 1.30 mm and 2.30 mm has also proven to be particularly advantageous.
  • a wire to be inserted into the wire channel is preferably passed through the spaced arms of the lever.
  • the wire insertion cross-section of the wire channel can be limited by the busbar, in particular a clamping section thereof described later, the distance between the two arms of the lever and the inner surface of the housing.
  • a grip area can be arranged on an end of the lever opposite the two arms.
  • the grip area can preferably taper towards its free end, as a result of which two levers arranged next to one another in the housing can be spaced apart from one another at least in the area of the grip area, which in turn facilitates the operability of the lever.
  • a further improved operability can be achieved if the grip area preferably has a structured grip surface.
  • a length of the grip area can be equal to or less than 2.70 mm. It is preferably provided that the length of the grip area is preferably equal to or less than 2.45 mm, with the length of the grip area particularly preferably being between 1.45 mm and 2.45 mm. In this way, the lever can enable simple and tool-free handling.
  • a ratio of a lever width between two side surfaces of the lever to a lever length between a first and a second longitudinal end of the lever is preferably between approximately 1: 1.9 and 1: 3.6, preferably in about 1: 2.6.
  • the busbar which is an essential part of the connecting terminal, can be constructed in two parts and formed from a holding section, preferably approximately S-shaped holding section, and a clamping section connected thereto, preferably approximately U-shaped clamping section.
  • the holding section preferably connects a plurality of clamping sections to one another.
  • the number of clamping sections generally corresponds to the number of wire openings. If the connecting terminal is designed with 2, 3 or 5 connections, that is to say wire openings, the mounting section can connect 2, 3 or 5 clamping sections to one another. It goes without saying that the busbar is made with its two sections from an electrically conductive material.
  • a longitudinal extension of the busbar is preferably equal to or less than 11.80 mm. It is preferably provided that the longitudinal extension of the busbar is equal to or less than 11.30 mm.
  • the length of the busbar can particularly preferably be between 9.30 mm and 11.30 mm. The advantages mentioned can equally be achieved if a height extension of the busbar is equal to or less than 6.10 mm, preferably equal to or less than 5.60 mm, particularly preferably between 3.60 mm and 5.60 mm.
  • a longitudinal extension of the clamping section is preferably equal to or less than 8.40 mm. It is preferably provided that the longitudinal extension of the clamping section is equal to or less than 7.90 mm. In the case of a space-saving, yet easily manageable connecting clamp, the longitudinal extension of the clamping section is preferably between 5.90 mm and 6.90 mm.
  • the length of the clamping section can be determined between at least one of two free ends of the clamping section and a bend opposite this end and formed between the free ends.
  • the above dimensions are preferably to be determined in an undeformed state of the busbar, in particular of the elastically deformable clamping section thereof.
  • a material thickness of the clamping section is preferably equal to or less than 0.65 mm, whereby sufficient elasticity and clamping force of the clamping section can be ensured.
  • the material thickness of the clamping section can be equal to or less than 0.50 mm, particularly preferably between 0.20 mm and 0.50 mm.
  • a material thickness of the holding portion may be equal to or less than 0.80 mm.
  • the holding section has sufficient strength to ensure, on the one hand, that the clamping section is attached to it and, on the other hand, to be well integrated into the housing.
  • the material thickness of the mounting section can be equal to or less than 0.70 mm, particularly preferably between 0.30 mm and 0.70 mm.
  • a connecting terminal advantageously comprises a test opening into which a test tool can be inserted in such a way that it contacts the busbar, preferably the mounting section thereof. It has therefore been found to be advantageous that the housing also has a through opening on the rear side of the housing which enables contact to be made with the busbar and is between 0.50 mm and 1.10 mm wide and between 3.50 mm and 2.50 mm high, for example is.
  • the busbar in particular its clamping section, can be elastically deformed by pivoting the lever between the open and closed position.
  • the arms of the lever can exert a compressive force on the clamping section, as a result of which the wire channel cross section can be enlarged.
  • the busbar for example its clamping section, preferably has a notch into which an engagement section of the lever can engage in the open position.
  • a defined position between lever and busbar can be achieved in the open position of the lever and, on the other hand, undesired pivoting of the lever while a wire is being inserted into the wire channel can be prevented.
  • the notch in the busbar can have corrugations which oppose an additional resistance force to a movement of the lever from the engagement between the engagement section of the lever and the notch in the busbar. This enables a further improved fixation of the lever in the open position and thus facilitates the introduction of a wire into the wire channel. This effect is preferably achieved if the corrugations are formed transversely to the direction of movement of the lever.
  • Figure 1A shows a side view of a connecting terminal according to the invention, which is designated quite generally with the reference numeral 10.
  • the housing 12 of the connecting terminal 10 is shown with its maximum dimensions at a height 14 and a length 16.
  • the maximum height 14 of the housing 12 is measured from a housing bottom 18 to a housing top 20 and the maximum length 16 of the housing 12 from a housing front 22 to a housing rear 24.
  • a ratio between the maximum height 14 and the maximum length 16 of the housing 12 is approximately 1: 1.9, this ratio being preferably between approximately 1: 1.6 and 1: 2.3.
  • the maximum height 14 of the housing 12 can be equal to or less than 10.00 mm, preferably equal to or less than 9.50 mm, particularly preferably between 7.50 mm and 9.50 mm.
  • the preferred maximum length 16 of the housing 12 can be equal to or less than 17.50 mm, preferably equal to or less than 17.30 mm, particularly preferably between 15.30 mm and 17.30 mm.
  • a compact and easily manageable connecting clamp that can be achieved by means of these dimensions is disclosed in the Figures 1A to 1C evident.
  • the connecting terminal 10 comprises a lever 26 which is pivotably mounted on the housing 12 and can be pivoted between an open and a closed position, with FIG Figure 1A the closed position of the lever 26 is shown.
  • an overall height 28 of the connecting terminal 10 can be greater than the maximum height 14 of the housing 12, since the lever 26 can extend therefrom beyond the housing 12 for good operability.
  • the total height 28 of the connecting clamp 10 including the lever 26 can be equal to or less than 10.55 mm, preferably between 8.05 mm and 10.05 mm, particularly preferably about 9.05 mm.
  • the above dimensions relate to a state in which the lever 26 is in its closed position.
  • the mode of operation of the connecting terminal 10 is explained below with reference to FIG Figures 1B and 1C outlined, in each of which a housing side wall 30 is shown transparent and reveals the internal components of the connecting terminal 10.
  • the connecting terminal 10 has a wire opening 32 which, starting at the front side 22 of the housing, extends into the interior of the housing 12 and enables a wire, not shown, to be inserted into the latter.
  • a wire channel 33 can be connected to the wire opening 32, for example in FIG Figures 2C , 3C and 4C can be seen which in the in Figure 1B shown closed position of the lever 26 a wire clamping cross-section and in the in Figure 1C
  • the illustrated open position of the lever 26 can have a wire insertion cross-section, the wire insertion cross-section being larger than the wire clamping cross-section, in order to enable a simple insertion of a wire into the wire channel 33.
  • FIG. 1B at least part of a busbar 34, which is in contact with a contact surface 36 of the lever 26, for example in the illustrated closed position. If the lever 26 is pivoted from the closed to the open position, the portion of the lever 26 protruding beyond the housing 12 can move in the direction of the rear side 24 of the housing and an engagement portion 38 of the lever 26 can snap into a notch 40 of the busbar 34, whereby the Lever 26 can be held in the open position.
  • a leg 42 of the busbar 34 that has the notch 40 is pressed in the direction of the lower side 18 of the housing.
  • a cross section of the wire channel 33 preferably increases until it can have the wire insertion cross section in the open position and can allow a wire to be easily inserted into the wire channel 33.
  • the lever 26 can be pivoted into the closed position, whereby the leg 42 of the busbar 34 having the notch 40 can again elastically deform and move towards the top 20 of the housing until it rests against the lever 26 and / or a wire inserted into the wire channel 33.
  • the busbar 34 thus exerts a force in the closed position of the lever 26 on a wire located in the wire channel 33, causing the wire to move in the direction of a housing inner surface 43, which is for example in the Figures 2C , 3C and 4C can be seen, pressed and clamped between the busbar 34 and the housing inner surface 43.
  • the busbar 34 In the closed position of the lever 26, the busbar 34 can thus contact a wire located in the wire channel 33 and current can flow between the busbar 34 and a jammed wire.
  • Figures 2A to 2C show an embodiment of a connecting terminal 10 according to the invention, which is suitable for connecting two wires.
  • the above statements apply equally to the in Figures 2A to 2C
  • the illustrated embodiment and the same or corresponding components are labeled with the same reference numerals.
  • FIG. 2A The perspective view of the connecting terminal 10 shown here shows two levers 26 which can be assigned to a respective wire opening 32 for inserting a respective wire.
  • both levers 26 protrude beyond the housing 12, as a result of which they can be easily grasped by an operator, which facilitates pivoting of the lever 26 from the closed to the open position. All levers 26 of a connecting terminal 10 can be designed identically.
  • the housing 12 can be composed of two parts, a front housing part 44 comprising the front side 22 of the housing and a rear housing part 46 comprising the rear side 24 of the housing Figures 2A and 2B As can be seen, locking lugs 48 of one housing part 44, 46 can snap into recesses 50 of the other housing part 46, 44.
  • a wire to be clamped by means of the connecting clamp 10 can be introduced through the wire opening 32, which tapers in the direction of the adjoining wire channel 33, as shown, for example, in FIG Figure 2C can be seen.
  • a wire located in the wire channel 33 can therefore be clamped between the busbar 34 and the housing inner surface 43 when the lever 26 is in the closed position.
  • a lateral limitation of the wire channel 33 can be formed by arms 54 of the lever 26, with one more detailed description of the lever 26 later with respect to FIG Figures 5A to 5C he follows.
  • the connecting terminal 10 with two connections can have a maximum width 55 of the housing 12, measured from a first housing side wall 30 'to a second housing side wall 30 ", equal to or less than 12.50 mm, preferably equal to or less than 12.00 mm, particularly preferably between 10.00 mm and 12.00 mm.
  • wire opening 32 and the wire channel 33 as well as their arrangement with respect to one another are intended Figure 2C will be explained in more detail.
  • a simple introduction of a wire into the wire opening 32 can be made possible if the wire opening 32 on the housing front side 22 has a wire opening height 56 which is equal to or less than 6.55 mm, preferably equal to or less than 6.05 mm, particularly preferably between 5.05 mm and 6.05 mm, and / or has a wire opening width 57 that is equal to or less than 2.95 mm, preferably equal to or less than 2.70 mm, particularly preferably between 1.70 mm and 2 .70 mm.
  • a wire is preferred, for example a copper wire, the wire cross-sectional area of which is less than or equal to 2.5 mm 2 .
  • a wire clamping cross-section of the wire channel 33 is designed in such a way that wires with a wire cross-sectional area of a wire of 2.5 mm 2 can be securely clamped between the busbar 34 and the housing inner surface 43.
  • the wire clamping cross-section of the wire channel 33 is preferably designed in such a way that even wires with a wire cross-sectional area of 0.2 mm 2 , 1.0 mm 2 and / and 1.5 mm 2 can be clamped securely and with sufficient current transfer between wire and busbar 34 .
  • a wire opening spacing 58 between two wire openings 32 ′ and 32 ′′ can be approximately between 3.5 mm and 5.5 mm, preferably approximately 4.5 mm.
  • a connecting terminal 10 further comprises a test opening 59, into which a test tool can be inserted in such a way that it contacts the busbar 34. It has therefore turned out to be advantageous that the housing 12 furthermore has a through opening 59 on the rear side 24 of the housing, which enables contact to be made with the busbar 34 and, for example, between 0.5 mm and 1.1 mm wide and between 3.5 mm and 2 .5 mm high.
  • Figures 3A to 3C and 4A to 4C show further exemplary embodiments of the connecting terminal 10, which are set up for connecting three or five wires.
  • the above statements apply equally to the in Figures 3A to 3C and 4A to 4C
  • the exemplary embodiments shown and the same or corresponding components are labeled with the same reference numerals.
  • Each connection of the connecting terminal is preferably assigned a lever 26 which is designed to be pivoted between the closed position and the open position and to exert a force on the busbar 34 in order to change the cross section of the wire channel 33.
  • the arms 54 of the lever 26 preferably represent a lateral delimitation of the wire channel 33 both in the open and in the closed position of the lever 26.
  • the arms 54 can run parallel to one another and are preferably spaced apart from one another by an arm spacing 60.
  • the arm spacing of the arms 54 of the lever 26 from one another can be between 1.30 mm and 2.30 mm, preferably approximately 1.80 mm.
  • an arm thickness 62 of each arm 54 can be between 0.80 mm and 1.80 mm, preferably about 1.30 mm.
  • the two arms 54 of the lever 26 can form the engagement section 38 at a free end 64 thereof, the arms preferably tapering towards the free end 64 with an essentially constant arm thickness 62.
  • the engagement portion 38 of the lever 26 can engage the notch 40 of the busbar 34 when the lever 26 is in the open position, as in FIG Figure 1C shown.
  • Both arms 54 of the lever 26 may have a respective engaging portion 38 'and 38 "which fit into a respective notch 40' and 40" as shown in FIG Figure 6B can be seen to intervene.
  • the respective engagement section 38 can be followed by a front contact surface 68 of the arm 54 which, when installed in the housing 12, faces the housing rear 24 and can be configured to rest against the housing 12, preferably against the rear housing part 46 when the lever 26 is in the open position.
  • a substantially flat busbar contact surface 70 can also adjoin the respective engagement section 38, which is designed to rest on the busbar 34, preferably on a clamping section 72 of the busbar 34 described later, when the lever 26 is in the closed position is located.
  • busbar contact surface 70 can be followed by a rear contact surface 74 which, when the busbar is installed in the housing, points to the housing front side 22 and can be configured to attach to the housing 12, preferably to the front housing part 44, when the lever 26 is in the closed position.
  • a projection 76 which can be configured to be arranged between the busbar 34 and the housing 12, preferably the front housing part 44, when the lever 26 is in the closed position.
  • two opposite side surfaces 77 of the lever 26 can be formed substantially flat, apart from manufacturing-related unevenness.
  • the lever 26 can have a grip area 78, the surface of which can preferably be structured. As in Figure 5A As shown, this structuring can be grooves 82 Act.
  • the grip area can preferably have a length 79 of at least approximately 1.3 mm, preferably of at least approximately 1.45 mm, particularly preferably of between 1.45 mm and 2.45 mm.
  • a ratio of a lever width 80 between the two side surfaces 77 of the lever 26 to a lever length 81 between a first and a second longitudinal end of the lever 26 can be between approximately 1: 1.9 and 1: 3.6, preferably approximately 1: 2, 6 be.
  • a lever width 80 can for example be between 3.4 mm and 5.4 mm, preferably approximately 4.4 mm.
  • a groove 82 can be formed by at least one elevation 83 with two adjoining valleys, wherein a distance 84 between two valleys can be equal to or less than 0.95 mm, in particular equal to or less than 0.80 mm, even better between 0 , 20 mm and 0.80 mm.
  • the grip area 78 preferably comprises three elevations 83 and six valleys.
  • the grooves 82 are preferably formed transversely to the longitudinal direction of the lever 26.
  • busbar 34 essential for the connecting terminal 10 is described below with reference to FIG Figures 6A and 6B will be described in more detail.
  • the busbar 34 can be made of two sections, a clamping section 72, which is shown in FIG Figure 6A has an approximately U-shaped configuration, and a mounting portion 86 which, in the illustration of FIG Figure 6A has an approximately S-shaped shape.
  • a material thickness 88 of the clamping section 72 can be less than a material thickness 90 of the mounting section 86, the material thickness 88 of the clamping section 72 being able to be selected in such a way that the clamping section 72 can be sufficiently deformed when the lever 26 is pivoted between the closed and the open position enables.
  • the mounting section 86 of the busbar 34 can preferably be received in the housing 12 in an essentially non-deformable manner
  • the leg 42 of the clamping portion 72 having the notch 40 can be configured to be elastically deformed in the direction of a lower leg 92 of the clamping portion 72 when the Lever 26 is pivoted between the closed position and the open position.
  • the longitudinal extent 94 thereof is equal to or less than 11.80 mm, preferably between 11.30 mm and 9.30 mm, particularly preferably approximately 10.30 mm.
  • One The longitudinal extension 96 of the clamping section 72 between the free ends and a bend opposite these and formed between them is preferably between 5.90 mm and 7.90 mm, more preferably approximately 6.90 mm.
  • a longitudinal extension 98 of the holding section 86 between its opposite ends can preferably be between 4.85 mm and 6.85 mm, particularly preferably approximately 5.85 mm.
  • a free end 100 of the mounting section 86 can have a length 101 of approximately 3.10 mm and can be configured to be connected to a fastening section 103 of the clamping section 72.
  • the other free end 102 of the mounting section 86 can have a length 104 of approximately 3.4 mm.
  • a vertical extension 105 of the busbar 34, in particular of the mounting section 86 between the two free ends 100, 102, can be equal to or less than 6.10 mm, preferably between 3.6 mm and 5.6 mm, particularly preferably about 4.6 mm.
  • the holding section 86 can have a projection 106 which is designed to limit a movement of the leg 42 of the clamping portion 72 having the notch 40 in a direction pointing away from the lower leg 92.
  • a protrusion 108 of the projection 106 beyond the holding section 86 can preferably be approximately 0.55 mm.
  • FIG Figure 6B shown in a plan view. This shows that a respective notch 40 ′, 40 ′′ can be provided for each of the engagement sections 38 ′, 38 ′′ of the arms 54 of the lever 26. Furthermore, corrugations 110 can be seen in the notches, which can prevent an undesired pivoting of the lever 26 from the open to the closed position by providing an increased frictional resistance to the pivoting of the lever 26. The lever can therefore be held in the open position by means of the notch 40 and the corrugations 110.
  • the notch 40 can preferably have a width 112 of approximately 0.5 mm to 1.2 mm, preferably of approximately 0.8 mm, and can have two notches 40 ′, 40 ′′ of a clamping section 72 by a distance 114 between approximately 1.3 mm and 2.3 mm, preferably about 1.8 mm, overall, a width 116 of the clamping section 72 can be between about 2.4 mm and 4.4 mm, preferably about 3.4 mm.
  • a width 118 of a busbar 34 which is designed for two connections, for example, is preferably between approximately 6.8 mm and 8.8 mm, preferably approximately 7.8 mm.
  • a ratio of the length 94 to the width 118 of the busbar 34 can thus be approximately 1.3.

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  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
EP21152524.1A 2020-01-21 2021-01-20 Borne de liaison Withdrawn EP3855572A1 (fr)

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DE102020000349.4A DE102020000349A1 (de) 2020-01-21 2020-01-21 Verbindungsklemme

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EP3855572A1 true EP3855572A1 (fr) 2021-07-28

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WO2023168819A1 (fr) * 2022-03-07 2023-09-14 厦门广泓工贸有限公司 Connecteur électrique

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