Wiring device and wiring terminal
By introducing trigger elements into the wiring device, automatic conversion of clamping legs is realized, the problem of complex wiring of flexible conductors is solved, and wiring efficiency and reliability are improved.
Patent Information
- Application Number
- CN202411625475.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-11-17
- Filing Date
- 2024-11-14
- Publication Date
- 2025-05-20
AI Technical Summary
When connecting flexible conductors, existing wiring devices require manual operation of the clamping spring, resulting in complex and time-consuming assembly.
A wiring device with a trigger element is designed. The clamping leg automatically switches to the open position through the trigger element. When the connected conductor is inserted, the triggering element is triggered by the impact of the conductor, and the clamping leg automatically turns back to the clamping position to clamp the conductor.
The wiring process of flexible conductors is simplified, the complexity and time of manual operation is reduced, and the efficiency and reliability of wiring is improved.
Smart Images
Figure CN120021102A_ABST
Abstract
Description
Field of the Invention
[0001] The present invention relates to a wiring device for connecting electrical conductors. The present invention also relates to a terminal block, in particular a junction box, having such a wiring device. Background Art
[0002] Such a wiring device typically has a clamping spring configured as a helical torsion spring, which has a retaining leg and a clamping leg. A conductor inserted into the wiring device can be clamped to a busbar by means of the clamping leg of the clamping spring. If, in particular, a flexible conductor is to be clamped, the clamping spring must be transferred to the open position by means of an operating element before the conductor is inserted and then operated so that the clamping spring or the clamping leg pivots away from the busbar, whereby the conductor can be inserted into the intermediate space between the busbar and the clamping spring. Only in the case of a rigid and thus stable conductor can the conductor exert sufficient force on the clamping spring or the clamping leg of the clamping spring to be able to pivot the clamping leg away from the busbar without the user having to operate the operating element for this purpose. In the case of a flexible conductor, the user must first operate the operating element to pivot the clamping spring away from the busbar so that the flexible conductor can be inserted. In order to clamp the inserted conductor, the user must again manually operate the operating element to transfer the clamping spring from the open position to the clamping position. The above-mentioned manual operation of the operating element makes the assembly or wiring of the conductor difficult for the user because the operation is cumbersome and thus also increases the time consumption. Summary of the Invention
[0003] The object of the present invention is to provide a wiring device in which the wiring of flexible conductors in particular can be simplified.
[0004] According to the present invention, this object is solved by the features of the independent claims. Suitable designs and advantageous improvements of the present invention are given in the dependent claims.
[0005] The wiring device according to the present invention has a housing with a conductor inlet opening; a busbar arranged in the housing; a clamping spring arranged in the housing, which has a retaining leg and a clamping leg, wherein the clamping leg is transferable to a clamping position and an open position; and an operating element by means of which the clamping leg can be transferred from the clamping position to the open position. In addition, the wiring device has a triggering element which, in the open position of the clamping leg, engages with the clamping leg such that the clamping leg is held in the open position by means of the triggering element, and which can be swung such that when a conductor to be connected is inserted into the conductor inlet opening in the insertion direction, the triggering element can be operated such that the clamping leg disengages from the triggering element and pivots from the open position to the clamping position.
[0006] Now, with the wiring device according to the present invention, flexible conductors can also be simply and reliably connected and clamped to the busbar. The clamping spring is preferably configured as a helical torsion spring, which has a retaining leg and a clamping leg pivotally configured relative to the retaining leg. Through the pivoting movement of the clamping leg of the clamping spring, the clamping leg can be transferred to the open position and the clamping position. In the open position, the clamping leg is arranged spaced apart from the busbar, in particular from the clamping section of the busbar, and the conductor to be connected can be inserted into the intermediate space or conductor connection space thus formed between the busbar or the clamping section of the busbar and the clamping leg, or can be removed therefrom. In the clamping position, the clamping leg can abut against the busbar or the clamping section of the busbar, or against the connected conductor, in order to clamp the conductor to the wall of the busbar or the busbar through-hole. The transfer of the clamping leg, in particular from the clamping position to the open position, is achieved by means of an operating element. The operating element is preferably guided in a purely linear motion in the housing. As long as the clamping leg reaches the open position by means of the operation of the operating element, the clamping leg engages with the triggering element, so that the clamping leg can be held in the open position by the triggering element, and thus the clamping leg can be prevented from undesirably swinging back from the open position to the clamping position. The triggering element and the clamping spring can form a closed force system in the open position of the clamping leg. If the open position of the clamping leg is reached, then, therefore, the operating element can move again away from the clamping leg of the clamping spring against the operating direction of the operating element, at which time the clamping leg does not follow the operating element. Thus, in the open position itself, the operating element can be positioned spaced apart from the clamping leg of the clamping spring. If the clamping leg is held in the open position by the triggering element, the operating element can move back against the operating direction to its initial position again, so that in the open position of the clamping leg, no effective connection is formed between the operating element and the clamping leg. Through the pivoting movement of the triggering element, the clamping leg can be disengaged from the triggering element again, so that the clamping leg pivots back to the clamping position and clamps the conductor to be connected to the busbar. The pivoting movement of the triggering element can be triggered by the conductor to be connected itself, in such a way that when the conductor to be connected is inserted into the conductor connection space via the conductor inlet opening, the conductor hits the triggering element and thus triggers the tipping movement or pivoting movement of the triggering element. Through the tipping movement or pivoting movement of the triggering element, the effective connection between the triggering element and the clamping leg of the clamping spring can then be released, in such a way that the triggering element releases the clamping leg, so that the clamping leg can pivot automatically in the direction of the conductor to be connected by its spring force.
[0007] Preferably, the triggering element can engage with the clamping leg by means of a latching connection in the open position of the clamping leg, so that the triggering element can be latched with the clamping leg in the open position. This latching connection can enable the triggering element to engage with and disengage from the clamping leg simply and easily.
[0008] In order to form such a latching mechanism, the triggering element may have at least one locking arm which can be latched onto the clamping leg of the clamping spring in the open position. The at least one locking arm may extend out from the main extension plane of the triggering element, especially in the direction of the clamping leg of the clamping spring. The at least one locking arm may extend out from the main extension plane of the triggering element at an angle of 90°, or may be bent out from the main extension plane at an angle of 90°. At least one cutout may be formed on the clamping leg, and in the open position of the clamping leg, the at least one locking arm may engage into the cutout. The at least one locking arm may sink through the cutout and be latched from behind on the edge surface defining the cutout. The at least one locking arm may have a latching projection or a latching hook at its free end, by means of which the locking arm can sink through the cutout and can be latched from behind on the edge surface. Preferably, the triggering element has two locking arms, and accordingly, the clamping leg preferably also has two cutouts. The two cutouts may then be formed oppositely on two oppositely arranged longitudinal side edges of the clamping leg. In the regions of the two cutouts, the clamping leg may then have a narrower width than the rest of the clamping leg. These cutouts may each have a U-shaped configuration.
[0009] The triggering element may preferably be pivotally supported on the holding leg of the clamping spring. Thus, the triggering element can be supported on the metal part of the clamping spring without having to be supported on the plastic part of the housing. The triggering element is preferably configured as a component independent of the clamping spring. The triggering element can be detachably fixed on the holding leg of the clamping spring, especially detachably hooked and / or clipped onto the holding leg. The triggering element can then pivot relative to the holding leg of the clamping spring which is fixedly positioned in the housing.
[0010] In order to be able to pivotally support the triggering element on the retaining leg, the triggering element can have at least one rotational support portion which can engage into at least one cutout formed in the retaining leg. Through the at least one cutout, the triggering element can be detachably and rotatably supported on the retaining leg by its rotational support portion. The rotational support portion can form a pivot axis about which the triggering element can pivot. The rotational support portion can have at least one curved outer surface, and during the pivoting movement of the triggering element, the rotational support portion can roll on the retaining leg through this curved outer surface. Particularly preferably, the triggering element can have two rotational support portions, and in this case, the retaining leg can also preferably have two cutouts such that one of the two rotational support portions can engage into one of the two cutouts respectively. The two cutouts can then be formed oppositely on two oppositely arranged longitudinal side edges of the retaining leg. In the region of the two cutouts, the retaining leg can then have a narrower width than the rest of the retaining leg. These cutouts can each have a U-shaped configuration. The two rotational support portions can then laterally surround the retaining leg. By means of the two rotational support portions, it is possible to prevent the triggering element from undergoing an undesired lateral tipping during the pivoting movement of the triggering element.
[0011] In order to be able to ensure that the triggering element is reliably hooked onto the retaining leg and to ensure a reliable pivoting movement of the triggering element relative to the retaining leg, the rotational support portion can have an outer contour which can match the contour of the retaining leg. Thus, for example, the rotational support portion can have a curved outer surface in a region where the retaining leg can also have a curved shape or a bend. Thereby, reliable and uniform guidance of the rotational support portion on the retaining leg can be ensured.
[0012] Particularly preferably, the rotational support portion can have a T-shaped design. In the T-shaped design, the rotational support portion can have two curved outer surfaces which can abut against the retaining leg and can roll on the retaining leg when the triggering element swings. This can achieve particularly reliable and uniform rotational support of the triggering element on the retaining leg.
[0013] The triggering element may have a triggering leg on which a pressure surface is constructed, through which the triggering element can be operated by a conductor. The pressure surface may point in the direction of the conductor inlet opening. The pressure surface may delimit a conductor connection space downward along the inlet direction. The conductor to be connected may strike against the pressure surface when inserted into the conductor connection space, whereby the triggering element can pivot along the inlet direction to disengage from the clamping leg, so that the clamping leg can be released and pivot in the direction of the conductor to be connected to clamp the conductor onto the busbar in the clamping position. The pressure surface is preferably constructed on the triggering leg of the triggering element at a distance from at least one locking arm and / or at a distance from at least one pivot bearing part.
[0014] On the triggering leg of the triggering element, a wing part may be constructed which extends at a right angle from the triggering leg, and on which a locking arm and / or a pivot bearing part can be constructed. The wing part may extend from the triggering leg in the direction of the clamping leg. The triggering leg may form the main extension plane of the triggering element. The wing part may be bent or folded at a right angle from the triggering leg. The wing part is preferably constructed integrally with the triggering leg. The triggering element may be a stamping and bending part. A locking arm and / or a pivot bearing part can be constructed on the wing part. Particularly preferably, both a locking arm and a pivot bearing part are constructed on the wing part, so that the locking arm and the pivot bearing part can be arranged compactly. If two locking arms and / or two pivot bearing parts are constructed on the triggering element, then the triggering element preferably also has two oppositely arranged wing parts, on which one of the pivot bearing parts and / or one of the locking arms can be constructed respectively.
[0015] In order to enable the triggering element to transmit force particularly well and to prevent the triggering element from being bent undesirably, the triggering element may have a strengthening profile. The strengthening profile can increase the stiffness of the triggering element. The strengthening profile can be constituted, for example, by a strengthening arm stamped out of the material of the triggering element and bent from the main extension plane of the triggering element, and the strengthening arm can engage with a protrusion constructed on the triggering leg.
[0016] In order to avoid having to manually hold the operating element in the open position and / or the clamping position, the operating element may have a latching projection by means of which the operating element can be latched to the housing in the open position and / or the clamping position of the clamping leg of the clamping spring. Thereby, the operating element can be held in a fixed position without manual assistance, not only in the open position but also in the clamping position of the clamping leg of the clamping spring. Thereby, the operating element can constitute a status display device for the user, so that the user can recognize from the outside whether the clamping leg of the clamping spring is in the open position or the clamping position.
[0017] It is also possible that the housing can have a test plug opening, wherein the triggering element can protrude into the test plug opening in such a way that by inserting a tool into the test plug opening, the triggering element can be operated in such a way that the clamping legs can be disengaged from the triggering element and pivoted from the open position into the clamping position. Thereby, a conductor with a very small conductor cross-section, even if not enough force can be applied to the pressure surface of the triggering element to pivot the triggering element, can be wired with the aid of an additional tool capable of operating the triggering element. In particular, the triggering element can protrude into the test plug opening with its rotational bearing in such a way that the tool inserted into the test plug opening can strike the rotational bearing, causing the rotational bearing to perform a rotational movement such that the triggering element can pivot, and thereby the triggering element can be disengaged from the clamping legs of the clamping spring.
[0018] Furthermore, the object according to the invention can be solved by means of a terminal, in particular a junction box, which can have at least a wiring device designed and improved as described above.
[0019] The wiring device designed and improved as described above can be part of a terminal, which can be constructed, for example, as a junction box or a circuit board terminal. The wiring device can also be used in a plug connector.
[0020] In particular, when used in a junction box that can be snapped onto a support rail, it is preferably possible to use two or more wiring devices constructed and improved as described above. Description of the Drawings
[0021] The invention will be explained in detail below with reference to the drawings according to preferred embodiments.
[0022] Shown therein are:
[0023] Figure 1A 、 1B A schematic view of the wiring device according to the invention is shown, wherein the clamping legs of the clamping spring are in the open position,
[0024] Figure 2A 、 2B A schematic view or cross-sectional view of the wiring device shown in FIG. 1 when operating the triggering element with the conductor to be connected is shown,
[0025] Figure 3 A schematic cross-sectional view of the wiring device shown in FIG. 1 is shown, wherein the clamping legs of the clamping spring are in the clamping position, and the connected conductor is also shown,
[0026] Figure 4 A schematic view of the wiring device shown in FIG. 1 when the clamping legs are transferred from the clamping position to the open position by means of an operating element is shown,
[0027] Figure 5A 、 5B shows a schematic view of the clamping spring together with the trigger element,
[0028] Figure 6 shows a schematic view of the clamping spring and the trigger element in a state where they are disengaged from each other,
[0029] Figure 7 shows a schematic view of the trigger element with a reinforcing profile, and
[0030] Figure 8 shows a schematic cross-sectional view of the wiring device shown in FIG. 1 when the trigger element is triggered by a tool inserted into the inspection plug opening. Detailed implementation manner
[0031] In FIGS. 1 to Figure 8 shows a wiring device 100 according to the present invention. The wiring device 100 includes a housing 110. The housing 110 can be constructed of an insulating material, such as a plastic material. The housing 110 has a conductor inlet opening 111, and the conductor L to be connected can be inserted into the housing 110 along the inlet direction E through the conductor inlet opening so as to be connected to the wiring device 100.
[0032] A bus bar 112 and a clamping spring 113 are positioned in the housing 110. The conductor L inserted into the housing 110 can be clamped to the bus bar 112 by means of the clamping spring 113 and then be wired. The bus bar 112 has a clamping section 114, and the conductor L to be connected can be clamped to the clamping section 114 by means of the clamping spring 113 and then be wired. In addition, the bus bar 112 has a support section 115, and the support section extends at an angle of 90° with respect to the clamping section 114.
[0033] The clamping spring 113 is configured as a helical torsion spring. The clamping spring 113 has a retaining leg 116 and a clamping leg 117. The clamping leg 117 can pivot relative to the retaining leg 116 so that the clamping leg 117 moves into the clamping position and the open position. The clamping leg 117 has a clamping edge 118 at its free end section, and the clamping edge clamps the conductor L to be connected to the clamping section 114 of the bus bar 112 in the clamping position of the clamping leg 117.
[0034] Viewed along the inlet direction E of the conductor L, the conductor connection space formed between the clamping section 114 of the bus bar 112 and the clamping leg 117 of the clamping spring 113 is downwardly defined by the trigger element 119. The trigger element 119 is detachably connected to the clamping spring 113, and in particular is pivotally supported on the clamping spring 113.
[0035] The trigger element 119 has a pressure surface 120 that faces in the direction of the conductor insertion opening 111 and against which the conductor L strikes when it is inserted into the conductor connection space. If the conductor L strikes the pressure surface 120, this triggers a pivoting movement or tilting movement V of the trigger element 119 in the insertion direction E, as shown in Figure 2A , 2B as shown.
[0036] Figure 5A , 5B and Figure 6 show the trigger element 119 and the clamping spring 113.
[0037] The pressure surface 120 of the trigger element 119 is configured on the trigger leg 121 of the trigger element 119. The trigger leg 121 has an elongate shape. The trigger leg 121 forms the main extension plane of the trigger element 119.
[0038] In the open position, the trigger element 119 engages with the clamping leg 117 of the clamping spring 113 in order to hold the clamping leg 117 in the open position. This is achieved by means of a latching between the trigger element 119 and the clamping leg 117. For this purpose, in the design shown here, the trigger element 119 has a first locking arm 122A and a second locking arm 122B that is arranged at a distance from the first locking arm 122A. On the clamping leg 117 of the clamping spring 113, recesses 123A, 123B are respectively configured for each of the two locking arms 122A, 122B, into which the locking arms 122A, 122B can sink and can be hooked behind the edge surfaces 124A, 124B that respectively define the recesses 123A, 123B, as can be seen, for example, in Figure 5A , 5B as shown. The locking arms 122A, 122B each have a latching projection or latching hook 125A, 125B at their free ends, by means of which the locking arms 122A, 122B can sink through the respective recesses 123A, 123B and can be hooked behind the edge surfaces 124A, 124B.
[0039] The two recesses 123A, 123B on the clamping leg 117 of the clamping spring 113 are opposed to one another and are configured on two opposed longitudinal side edges 126A, 126B of the clamping leg 117. In the region of the two recesses 123A, 123B, the clamping leg 117 thus has a width narrowing or constriction. The recesses 123A; 123B each have a U-shaped shape. The recesses 123A, 123B are configured on the clamping leg 117 at a distance from the clamping edge 118 of the clamping leg 117.
[0040] As can be seen from Figure 6It can be seen that the triggering element 119 is configured as a component independent of the clamping spring 113, wherein the triggering element 119 is detachably fixed to the clamping spring 113. The triggering element 119 is pivotally supported on the clamping spring 113 in such a way that the triggering element 119 is pivotally supported on the holding leg 116 of the clamping spring 113. The triggering element 119 can pivot relative to the holding leg 116 which is fixedly positioned.
[0041] For the construction of the pivotable support, the triggering element 119 has two rotational support portions 127A, 127B in the design shown here. With these two rotational support portions 127A, 127B, the triggering element 119 engages on the holding leg 116 of the clamping spring 113. These two rotational support portions 127A, 127B form the pivot axis of the triggering element 119 about which the triggering element 119 can pivot. These two rotational support portions 127A, 127B are arranged opposite to each other.
[0042] These two rotational support portions 127A, 127B engage respectively into recesses 128A, 128B formed in the holding leg 116, so that two recesses 128A, 128B are also formed in the holding leg 116. These two recesses 128A, 128B are formed opposite to each other on two opposite longitudinal side edges 129A, 129B of the holding leg 116 which are arranged opposite to each other. In the regions of these two recesses 128A, 128B, the holding leg 116 thus has a width narrowing or constriction. The recesses 128A, 128B respectively have a U-shaped shape by their positioning on the longitudinal side edges 129A, 129B of the holding leg 116.
[0043] The two rotational support portions 127A, 127B sink through the recesses 128A, 128B such that the rotational support portions 127A, 127B abut against the longitudinal side face 130 of the holding leg 116 which is oriented away from the clamping leg 117. During the pivoting movement of the triggering element 119, the rotational support portions can roll on this longitudinal side face 130.
[0044] The pivot bearing portions 127A, 127B have at least one curved outer surface 131A, 131B, 132A, 132B. When the trigger element 119 pivots, the pivot bearing portions 127A, 127B can roll on the holding leg 116, or on the longitudinal side surface 130 of the holding leg 116, via the curved outer surfaces. The holding leg 116 has a curved portion 133 in the regions of the two cutouts 128A, 128B. The pivot bearing portions 127A, 127B engage with the curved portion 133 with their curved outer surfaces 131A, 131B, 132A, 132B, such that the pivot bearing portions 127A, 127B can roll in the curved portion 133 with their curved outer surfaces 131A, 131B, 132A, 132B. Via the curved portion 133 and the curved outer surfaces 131A, 131B, 132A, 132B, the outer contour of the pivot bearing portions 127A, 127B can match the contour of the holding leg 116.
[0045] In the design shown here, the two pivot bearing portions 127A, 127B each have a T-shaped configuration. Due to the T-shaped configuration, the pivot bearing portions 127A, 127B can each have two holding projections 134A, 134B, 135A, 135B, and the pivot bearing portions 127A, 127B can abut against the longitudinal side surface 130 of the holding leg 116 with the holding projections. The curved outer surfaces 131A, 131B, 132A, 132B are configured on the holding projections 134A, 134B, 135A, 135B.
[0046] The trigger element 119 has two wings 136A, 136B. A locking arm 122A and a pivot bearing portion 127A are configured on the wing 136A. A locking arm 122B and a pivot bearing portion 127B are configured on the wing 136B. The two wings 136A, 136B are arranged opposite to each other. The wings 136A, 136B each extend at a right angle from the trigger leg 121 in the direction of the clamping leg 117, so the wings 136A, 136B are each bent or folded at a right angle from the trigger leg 121. The wings 136A, 136B are arranged opposite to each other. The wings 136A, 136B are arranged on the end section of the trigger leg 121 that is opposite to the end section where the pressure surface 120 is configured. The wings 136A, 136B are integrally configured with the trigger leg 121, so the trigger element 119 can be manufactured as a stamped and bent part.
[0047] Figure 7Another possible design of the trigger element 119 is shown, in which the trigger element 119 additionally has a reinforcing profile 137. In the design shown here, the reinforcing profile 137 is formed by a reinforcing arm 148 made of the material of the trigger element 119 and bent out from the main extension plane of the trigger element 119, and this reinforcing arm engages with a protrusion 138 constructed on the trigger leg 121. The reinforcing arm 148 is bent out from the main extension plane of the trigger element 119 at an angle of 90°.
[0048] Figure 1A 、 1B The clamping leg 117 of the clamping spring 113 in the open position is shown, in which the clamping leg 117 engages with the trigger element 119, and thereby releases the conductor connection space, so that the conductor L to be connected can be inserted into this conductor connection space through the conductor insertion opening 111.
[0049] As can be seen in Figure 2A 、 2B When the conductor L to be connected is inserted into the conductor connection space along the insertion direction E, the conductor L to be connected hits the pressure surface 120 of the trigger element 119. Thereby, the trigger element 119 performs a tipping movement or a pivoting movement V along the insertion direction E, whereby the locking arms 122A, 122B of the trigger element 119 are decoupled from the cutouts 123A, 123B of the clamping leg 117. Thereby, the clamping leg 117 is disengaged from the trigger element 119, so that the clamping leg 117 can automatically rotate away from the trigger element 119 or the holding leg 116 by its restoring force or its spring force, and pivot in the direction of the conductor L inserted into the conductor connection space, so that the conductor L can be clamped on the clamping section 114 of the bus bar 112, as Figure 3 shown.
[0050] If the conductor L is to be loosened from the clamping position again, the operating element 139 is moved along the operating direction B inside the operating notch 140 of the housing 110, as visible in Figure 4 . By the displacement movement of the operating element 139, the operating element 139 pushes the clamping leg 117 with its operating section 141 away from the conductor L, so that the clamping leg 117 pivots in the direction of the holding leg 116. The operating element 139 exerts a pushing force along the operating direction B on the clamping leg 117, so that the clamping leg 117 moves in the direction of the holding leg 116 so far that the clamping leg 117 is re-engaged with the trigger element 119 again, and thus the clamping leg is in the open position and remains there. The operating element 139 is linearly movably supported in the operating notch 140 of the housing 110.
[0051] The operating element 139 has a latching projection 142. Viewed along the operating direction B, the latching projection 142 is arranged above the operating section 141 on the operating element 139. In the open position, the latching projection 142 latches onto the lower edge surface 143 of the operating recess 140 of the housing 110, such that the operating element 139 remains recessed in the operating recess 140 in the open position. If, when operating the triggering element 119 by means of the conductor L, the clamping leg 117 disengages from the latching with the triggering element 119, the clamping leg 117 presses against the operating element 139 by its spring force and disengages the operating element from its latching with the housing 110, such that the operating element 139 moves upward against the operating direction B until the upper side 145 of the operating element 139 with the tool engagement portion 144 is positioned flush with the outer surface 146 of the housing 110. Thus, in the clamping position of the clamping leg 117, the operating element 139 terminates flush with the outer surface 146 of the housing 110 with its upper side 145. In this position, the latching projection 142 of the operating element 139 can latch into a cutout provided on the operating recess 140 of the housing 110 in order to hold and latch the operating element 139 in this position.
[0052] An inspection plug opening 147 is also provided in the housing 110. As can be seen in Figure 8 , the triggering element 119 can be inserted into the inspection plug opening 147 with the rotational support portions 127A, 127B such that the triggering element 119 can be operated by inserting a tool W, such as a screwdriver, into the inspection plug opening 147, such that the triggering element 119 can be pivoted along the insertion direction E by means of the tool W, and thereby the clamping leg 117 disengages from the triggering element 119 and pivots from the open position into the clamping position. Thereby, an emergency unlocking method can be provided for a conductor L with a very small conductor cross-section.
[0053] Explanation of reference numerals
[0054] 100 Wiring device
[0055] 110 Housing
[0056] 111 Conductor insertion opening
[0057] 112 Busbar
[0058] 113 Clamping spring
[0059] 114 Clamping section
[0060] 115 Support section
[0061] 116 Holding leg
[0062] 117 Clamping leg
[0063] 118 clamping edge
[0064] 119 triggering element
[0065] 120 pressure surface
[0066] 121 triggering leg
[0067] 122A, 122B locking arms
[0068] 123A, 123B cutouts
[0069] 124A, 124B edge surfaces
[0070] 125A, 125B locking hooks
[0071] 126A, 126B longitudinal side edges
[0072] 127A, 127B rotational support parts
[0073] 128A, 128B cutouts
[0074] 129A, 129B longitudinal side edges
[0075] 130 longitudinal side surface
[0076] 131A, 131B curved outer surfaces
[0077] 132A, 132B curved outer surfaces
[0078] 133 bending part
[0079] 134A, 134B retaining protrusions
[0080] 135A, 135B retaining protrusions
[0081] 136A, 136B wings
[0082] 137 strengthening profile
[0083] 138 protrusion
[0084] 139 operating element
[0085] 140 operating notch
[0086] 141 operating section
[0087] 142 locking protrusion
[0088] 143 lower edge surface
[0089] 144 tool engagement part
[0090] 145 upper side
[0091] 146 Outer surface
[0092] 147 Inspection plug opening
[0093] 148 Reinforcement arm
[0094] E Insertion direction
[0095] B Operating direction
[0096] V Pivoting movement
[0097] L Conductor
[0098] W Tool
Claims
1. A connection device (100) for connecting an electrical conductor (L), comprising: A housing (110) comprising a conductor introduction opening (111), a manifold (112) disposed in the housing (110), A clamping spring (113) is arranged in a housing (110) and has a retaining leg (116) and a clamping leg (117), wherein: The clamping leg (117) can be moved into a clamping position and an open position. an operating element (139), by means of which the clamping leg (117) can be transferred from a clamping position into an open position, and A trigger element (119) is engaged with the clamping leg (117) in the open position of the clamping leg (117) so that the clamping leg (117) is held in the open position by means of the trigger element (119), and the trigger element can be pivoted so that when the conductor (L) to be connected is inserted into the conductor introduction opening (111) along the introduction direction (E), the trigger element (119) can be operated so that the clamping leg (117) is disengaged from the trigger element (119) and pivoted from the open position to the clamping position.
2. The wiring device (100) according to claim 1, characterized in that: In the open position, the triggering element (119) latches with the clamping leg (117).
3. The wiring device (100) according to claim 2, characterized in that: The triggering element (119) has at least one locking arm (122A, 122B) which latches onto the clamping leg (117) in the open position.
4. The wiring device (100) according to any one of claims 1 to 3, characterized in that: The triggering element (119) is pivotably mounted on a retaining leg (116) of a clamping spring (113).
5. The wiring device (100) according to claim 4, characterized in that: The triggering element (119) has at least one pivot bearing (127A, 127B) which engages in at least one recess (128A, 128B) formed on the retaining leg (116) in order to pivotally support the triggering element (119) on the retaining leg (116).
6. The wiring device (100) according to claim 5, characterized in that: The pivot bearings (127A, 127B) have an outer contour that matches the contour of the retaining legs (116).
7. The wiring device (100) according to claim 5 or 6, characterized in that: The rotation support parts (127A, 127B) have a T-shaped structure.
8. The wiring device (100) according to any one of claims 1 to 7, characterized in that: The tripping element (119) has a tripping leg (121), on which a pressure surface (120) is formed, via which the tripping element (119) can be actuated by means of a conductor (L).
9. The wiring device (100) according to claim 8, characterized in that: A wing portion (136A, 136B) extending from the trigger leg (121) at a right angle is constructed on the trigger leg (121), wherein a locking arm (122A, 122B) and / or a rotation support portion (127A, 127B) are constructed on the wing portion (136A, 136B).
10. The wiring device (100) according to any one of claims 1 to 9, characterized in that: The triggering element (119) has a reinforcement contour (137).
11. The wiring device (100) according to any one of claims 1 to 10, characterized in that: The operating element (139) has a latching projection (142) by means of which the operating element (139) can be latched to the housing (110) in an open position and / or a clamped position.
12. The wiring device (100) according to any one of claims 1 to 11, characterized in that: The housing (110) has a test plug opening (147), wherein a trigger element (119) extends into the test plug opening (147) in such a way that, by inserting a tool (W) into the test plug opening (147), the trigger element (119) can be operated in such a way that the clamping leg (117) disengages from the trigger element (119) and pivots from an open position to a clamping position.
13. A connection terminal, in particular a connection box, having at least one connection device (100) configured according to any one of claims 1 to 12.