Wiring configuration
By introducing control elements and pressing elements into the wiring configuration, the opening and closing state of the clamp spring is automatically controlled, which solves the problem of cumbersome operation of flexible conductors and realizes convenient and efficient conductor connection.
Patent Information
- Application Number
- CN202380052591.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-07-18
- Filing Date
- 2023-07-06
- Publication Date
- 2025-02-25
AI Technical Summary
The existing wiring configuration is complicated to operate when connecting flexible conductors, requiring manual control of the clamp springs multiple times, which increases installation difficulty and time-consuming.
A wiring configuration is designed, using a combination of a housing, a conductor connection cavity, a current bar, a clamp spring, a control element and a pressing element. The clamp foot of the clamp spring is moved from the clamping position to the open position through the control element, and the clamping spring is moved from the open position to the clamping position through the pressing element to realize automatic connection.
The connection process of flexible conductors is simplified, the operation steps are reduced, the convenience and reliability of connection are improved, and frequent manual manipulation of the control elements is avoided.
Smart Images
Figure CN119522513A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a wiring arrangement for connecting electrical conductors. Background Art
[0002] Such wiring arrangements usually have a clamping spring designed as a leg spring, which has a retaining foot and a clamping foot, wherein a conductor inserted into the wiring arrangement can be clamped against the current bar by means of the clamping foot of the clamping spring. If a particularly flexible conductor is to be clamped, the clamping spring must be moved into an open position by means of an actuating element and then actuated before the conductor is inserted, so that the clamping spring or the clamping foot is deflected away from the current bar in order to insert the conductor into the intermediate chamber between the current bar and the clamping spring, which forms the conductor connection chamber. Only when the conductor is rigid and therefore stable can the conductor exert sufficient force on the clamping spring or the clamping foot of the clamping spring so that the clamping foot is deflected away from the busbar without the user having to actuate the actuating element for this purpose. In the case of flexible conductors, the user must first actuate the actuating element to deflect the clamping spring away from the current bar in order to insert the flexible conductor. In order to clamp the inserted conductor, the user must manually actuate the actuating element again in order to move the clamping spring from the open position into the clamping position. The manipulation of the manipulation element by the user makes the installation or connection of the conductor more difficult, since the manipulation is cumbersome and thus time-consuming. Summary of the invention
[0003] It is therefore an object of the present invention to provide a connection arrangement in which the connection of particularly flexible conductors can be improved.
[0004] The solution of the present invention to achieve the above-mentioned object is characterized by the independent claim. The preferred technical solution and advantageous improvement of the present invention refer to the dependent claims.
[0005] The wiring configuration of the present invention comprises a housing; a conductor connection cavity constructed in the housing; a current bar, which can clamp the conductor to be connected inserted into the conductor connection cavity against the current bar; a clamping spring, which has a clamping foot that can be moved into a clamping position and into an open position; an operating element with a main body, which is used to move the clamping foot of the clamping spring from the clamping position to the open position during the movement of the operating element along the operating direction, wherein, in the open position of the clamping spring, the operating element is locked in a fixed position relative to the housing by locking with the housing; and a pressing element arranged in the housing, which has a pressing surface, which can be manipulated by the conductor to be connected so that the clamping spring is moved from the open position to the clamping position, and by manipulating the pressing surface, the pressing element can be manipulated in a manner of releasing the clamping foot, thereby switching from the open position to the clamping position.
[0006] With the aid of the wiring arrangement according to the invention, it is now also possible to connect flexible conductors simply and reliably and clamp them against a current bar. The clamping spring is preferably designed as a leg spring, which has a retaining foot and a clamping foot that can be deflected relative to the retaining foot. The retaining foot is preferably arranged in a fixed position. By the deflection movement of the clamping foot of the clamping spring, this clamping foot can be moved into an open position and a clamping position, in which the clamping foot is arranged at a certain distance from the current bar and the conductor to be connected can be inserted into the intermediate cavity formed between the current bar and the clamping foot and inserted into the conductor connection cavity, or can be moved out of this conductor connection cavity, and in the clamping position, the clamping foot can be placed against the current bar or against the connected conductor, thereby clamping the conductor against the current bar. The clamping foot is moved, in particular from the clamping position into the open position by means of an operating element. Preferably, the operating element is guided in a manner that can be moved substantially linearly in the housing. In order to hold the clamping foot in the open position without manually holding the actuating element in this position, in the open position of the clamping spring, the actuating element is snapped onto the housing in a position fixed relative to the housing. By snapping the actuating element to the housing, the actuating element can be automatically held in its position and, by this pressed-down and snapped position, the clamping foot of the clamping spring is prevented from deflecting upwards toward the current bar. The snapping of the actuating element to the housing can be released by a pressing element arranged in the housing. The pressing element can be actuated by means of the conductor to be connected itself. For this purpose, the pressing element has a pressing surface against which the conductor to be connected can be pressed during the insertion into the conductor connection cavity, so that the pressing element is moved or displaced, for example, in a displacement direction corresponding to the conductor insertion direction, and the pressing element can be actuated so that the actuating element is released from the snapping with the housing and the clamping foot of the clamping spring is released by the actuating element so that the clamping foot can be transferred from the open position to the clamped position. Therefore, neither actuation by means of the actuating element nor the use of additional tools is required for connecting the conductor. The pressing surface is configured to delimit the conductor connection cavity in the conductor insertion direction. By snapping the operating element into the open position of the clamp spring, the operating element is sunken into the housing to a certain extent in its snapped position, so that the operating element neither protrudes out of the housing nor is flush with the outer wall of the housing. Due to the fixed position of the operating element sunk into the housing in the open position of the clamp spring, the operating element can serve as a display element for the user to display the open position of the clamp spring.
[0007] Preferably, in the open position of the clamping spring, the actuating element bears against the clamping foot of the clamping spring by means of an actuating surface formed on the body. Since the actuating element bears against the clamping foot of the clamping spring by means of its actuating surface in the open position of the clamping spring, the clamping spring can be held in this position, thereby preventing the clamping foot of the clamping spring from being accidentally turned back from the open position to the clamping position. Thus, the actuating element can not only bear against the clamping foot of the clamping spring by means of its actuating surface during the actuation of the clamping spring itself, but also hold the clamping spring in the open position during this period.
[0008] The snap fastening of the operating element on the housing can be released by means of a pressing element. The pressing element can, for example, have a sliding surface, which works together with the operating element to release the snap fastening between the operating element and the housing. The pressing element can slide along the surface or outer surface of the main body of the operating element by means of the sliding surface, thereby causing the operating element to move in a manner that releases the snap fastening between the operating element and the housing. The pressing element can release the snap fastening of the operating element from the housing by pressing or prying. The operating element can perform a flipping movement transverse to the operating direction in the operating shaft.
[0009] Preferably, the sliding surface of the pressing element extends in an inclined manner relative to the operating direction of the operating element. Since the sliding surface extends obliquely, the sliding surface can cause the operating element to move sideways or push it sideways during sliding along the operating element, thereby releasing the snap between the operating element and the housing. Based on the oblique extension of the sliding surface, the sliding surface preferably extends in an angle within the range of 3°≤α≤30° with the operating direction of the operating element or with the moving direction of the pressing element.
[0010] The pressing element is preferably arranged in the housing in a linearly movable manner. In this case, the pressing element is preferably arranged in the housing in such a manner that the moving direction of the pressing element extends parallel to the operating direction of the operating element. In this way, the pressing element and the operating element can move or shift parallel to each other. In this case, the pressing element and the operating element have the same operating direction. Preferably, the operating direction of the operating element and the moving direction of the pressing element both correspond to the insertion direction of the conductor into the housing and into the conductor connection cavity.
[0011] As an alternative, the pressure element can also be supported in a deflectable manner in the housing. In this case, the pressure element can be constructed as a deflection element, which is supported in the housing in a deflectable manner around a deflection axis.
[0012] In order to form a snap fit between the housing and the actuating element, the actuating element can have a snap fit profile which can interact with an undercut formed on the housing. In the open position of the clamping spring, the actuating element can snap into or hook into the undercut formed on the housing from behind via the snap fit profile. The undercut can be in the form of a recess or a free space formed on the inner wall of the housing. A snap fit edge can be formed on the inner wall of the housing via the undercut. The snap fit profile is preferably arranged outside the actuating surface formed on the actuating element.
[0013] The snap-in contour formed on the actuating element can, for example, be in the form of a projection extending from the body of the actuating element. The actuating element can be snapped onto the undercut of the housing from behind by means of this projection. The projection can, for example, be in the form of a snap-in flange or a snap-in pin or a snap-in strip. The projection can extend over a large part of the actuating element or over the entire width of the actuating element.
[0014] Furthermore, the snap-in contour can also be formed by an inclined surface formed on the body of the actuating element. In this case, the inclined surface can cooperate with an undercut formed on the inner wall of the housing. The inclined surface can be formed on the edge surface of the actuating element. The inclined surface can, for example, abut the top side of the actuating element. The top side is the side of the actuating element on which the tool engagement surface for actuating the actuating element is formed.
[0015] Preferably, the actuating element is held in a fixed position relative to the housing not only in the open position of the clip spring, but also in a fixed position relative to the housing in the clamping position of the clip spring. To achieve this, the actuating element can have a retaining contour that cooperates with the housing and is used to hold the actuating element in a fixed position relative to the housing in the clamping position of the clip spring. In particular, in the case of conductors with a small cross section, this can prevent the actuating element from moving uncontrolled within the housing when the conductors are connected. In this way, the actuating element can also be arranged in a defined position within the housing in the clamping position of the clip spring. The housing can have a second undercut or groove surface that can cooperate with the retaining contour of the actuating element.
[0016] The retaining contour can be designed in the form of a flange protruding from the body of the actuating element. Such a flange can, for example, cooperate with a groove surface formed on the inner wall of the housing in that the flange can be guided at least partially in this groove surface. The flange can have a flat bevel in the unlocking direction of the actuating element and a snap-on edge in the actuating direction of the actuating element. The flange can be formed on the body of the actuating element approximately in the center of its length.
[0017] As an alternative, the retaining contour can be formed by an undercut formed on the body of the operating element. Such an undercut can be formed between the operating surface and the top side of the operating element. Such an undercut can cooperate with an undercut formed on the inner wall of the housing, in particular a second undercut.
[0018] When the clamping foot is turned from the open position to the clamping position, in order to stop the operating element during the movement of the operating element opposite to the operating direction, the housing can have a stop surface for limiting the stroke of the operating element opposite to the operating direction. The stop surface can be formed on the inner wall of the housing. The stop surface can also prevent the operating element from slipping out of the housing.
[0019] Furthermore, the pressure element may have a retaining element which can engage with the clamping foot in the open position of the clamping spring. For example, in the open position of the clamping spring, the clamping foot can be clamped against the retaining element by means of its clamping edge. The retaining element can be constructed on the pressure element in such a way that the retaining surface extends into the conductor connection cavity. The retaining element can have a retaining surface for retaining the clamping foot in the open position, and a driving surface along which the clamping foot slides during the movement from the clamping position into the open position. If the clamping foot is manipulated by means of the operating element so that it is moved from the clamping position into the open position, the clamping foot can slide along the driving surface of the retaining element, so that the clamping foot can exert pressure on the retaining element and thus on the pressure element, so that the pressure element moves to a certain extent in the movement direction until the clamping foot slides from the driving surface to the retaining surface and thus can be clamped on the retaining element from behind. During the sliding along the driving surface, the pressure element can move in the same direction as the operating element pressing against the clamping foot. The clamping foot can slide along the driving surface by means of its clamping edge and can be clamped on the retaining surface from behind.
[0020] Preferably, the pressing element may have a first side wall and a second side wall opposite to the first side wall, wherein the conductor connection cavity may extend between the first side wall and the second side wall, and wherein the first side wall and / or the second side wall may form a conductor guide. In this case, the conductor to be connected may be clamped between the two side walls of the pressing element in the pressing element. The two side walls are spaced a certain distance from each other, so that the clamping foot of the clamping spring can be deflected between the two side walls, thereby moving into the clamping position and into the open position. In this case, the first side wall and / or the second side wall may also simultaneously form a lateral guide for the conductor in the conductor connection cavity, thereby preventing the conductor to be connected from being inserted incorrectly or avoiding. The first side wall and / or the second side wall may be arranged as follows: they form an extension of the wall portion of the housing that defines the conductor insertion opening. In this way, the conductor to be connected can be introduced from the conductor insertion opening further into the conductor connection cavity along the first and / or second side wall immediately adjacent to the pressing element.
[0021] The pressure element can be actuated by a spring. For this purpose, the wiring arrangement can have a return spring, which can act together with the pressure element. If the conductor to be connected bears against the pressure surface of the pressure element during the connection process, the pressure element moves in the displacement direction and the return spring is tensioned. As soon as the clamping foot is no longer held in the open position by the actuating element or by the pressure element, the pressure element can immediately be moved back to its starting position in the opposite direction of displacement due to the elastic force of the return spring. The return spring can ensure that the pressure element always moves back to its defined starting position after being actuated by the clamping foot of the clamping spring or by the conductor to be connected.
[0022] The return spring is preferably supported on the current bar. In this way, the return spring can be supported against the metal element. Preferably, the return spring is supported against a section of the current bar which is at an angle to the clamping section, in particular at an angle of 90° to the clamping section.
[0023] The return spring can be constructed as a leaf spring, for example. The return spring can be U-shaped. The leaf spring can be engaged on the pressing element by means of one side of the U-shape.
[0024] The return spring can be constructed, for example, in one piece with the pressing element. In this case, the pressing element and the return spring can be made of the same material. For example, both the pressing element and the return spring can be made of a metal material. In addition, both the pressing element and the return spring can be made of a plastic material.
[0025] In addition, the return spring can also be constructed as a component independent of the pressing element. The pressing element can be made of plastic material, for example. The return spring can be made of metal material, for example.
[0026] In order to simplify the installation of the connection arrangement, the pressure element can have a free space on one side wall for the lateral insertion of the clamping spring into the housing. The free space allows the clamping spring to be moved laterally by its clamping foot past one of the two side walls of the pressure element until the clamping spring including the clamping foot is arranged in the pressure element, in particular between the two side walls of the pressure element.
[0027] The connection arrangement as described, constructed and improved above can be constructed, for example, in a connection terminal, for example a connection strip or a printed circuit board connection terminal. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] The present invention will be described in detail below in conjunction with preferred embodiments with reference to the accompanying drawings.
[0029] in:
[0030] Figure 1 Schematic diagram of the wiring arrangement of the present invention in the open position of the clamping legs of the clamp spring,
[0031] Figure 2 for Figure 1 A schematic perspective view of the wiring configuration shown,
[0032] Figure 3 for Figure 1 Schematic cross-sectional view of the wiring configuration shown,
[0033] Figure 4 for Figure 1 Schematic diagram of the wiring configuration shown, with the clamp spring moving from the open position to the clamped position,
[0034] Figure 5 for Figure 1 A schematic cross-sectional view of the wiring arrangement shown with the conductors connected,
[0035] Figure 6 for Figure 1 Schematic cross-sectional view of the wiring arrangement shown, with the clamping spring in the clamped position,
[0036] Figure 7 for Figure 1 Schematic diagram of the wiring arrangement shown, in which the actuating element moves in the opposite direction to the actuating direction,
[0037] Figure 8 for Figure 1 Schematic diagram of the wiring arrangement shown, with the clamping spring in the clamped position and the actuating element in the retained state,
[0038] Fig. 9 for Figure 8 a schematic cross-sectional view of the wiring configuration shown;
[0039] Fig.10 for Figure 8 A schematic perspective cutaway view of the wiring configuration shown,
[0040] Fig.11 Schematic detailed sectional view in the region of the retaining contour of the actuating element and in the housing,
[0041] Fig.12 is a schematic diagram of the operating components.
[0042] Fig.13 is a schematic diagram of a force characteristic curve during the operation of the operating element,
[0043] Fig.14 is a schematic diagram of a pressing element including a return spring,
[0044] Fig.15A and Fig. 15B Schematic diagram of the installation process for wiring configuration,
[0045] Fig.16 is a schematic diagram of another operating element,
[0046] Fig.17 When the clamp spring is in the open position, Fig.16 A schematic sectional view of the operating element shown in a state where it is locked with the housing,
[0047] Fig.18 To include Fig.16 Schematic diagram of another connection arrangement of the actuating element and the clamping spring in the open position,
[0048] Fig.19 When the clamp spring is in the clamping position, Fig.16 A schematic sectional view of the operating element shown in a state where it is held by the housing, and
[0049] Fig. 20 To include Fig.16 The actuating element and the clamping spring in the clamped position are shown. Fig.18 Schematic diagram of the wiring configuration shown. DETAILED DESCRIPTION
[0050] Figures 1 to 15B A connection arrangement 100 according to one possible technical solution is shown. This connection arrangement 100 can be integrated, for example, in a connection terminal such as a terminal block or a printed circuit board connection terminal.
[0051] The wiring arrangement 100 has a housing 110 made of an insulating material. A conductor connection chamber 111 is constructed in the inner chamber of the housing 110, and a conductor 200 to be connected is connected in the conductor connection chamber. The conductor 200 to be connected can be inserted into the conductor connection chamber 111 through a conductor insertion opening 121 constructed in the housing 110. The current bar 112 extends into the conductor connection chamber 111 with its clamping section 122, and the conductor 200 to be connected can be clamped against the clamping section and connected by means of a clamping spring 113. The clamping spring 113 is constructed as a leg spring having a retaining foot 114 and a clamping foot 115. The conductor 200 to be connected is clamped against the current bar 112 or against the clamping section 122 of the current bar 112 by means of the clamping foot 115.
[0052] In order to make the clamping foot 115 from, for example, Fig. 9 The clamping position shown is moved into, for example, Figure 1 In the open position shown, an actuating element 116 is provided. The actuating element 116 is guided substantially linearly in an actuating direction B in a housing shaft 117 of the housing 110 .
[0053] The actuating element 116 has a body 118. At the lower end along the actuating direction B of the actuating element 116, the body 118 has an actuating surface 119, which is operatively connected to the clamping foot 115 of the clamping spring 113, in particular during the actuation of the clamping foot 115. The actuating element 116 has a tool engagement surface 120 on the top side 140, which can be engaged by a tool such as a screwdriver to actuate the actuating element 116, so that the actuating element 116 is guided along the actuating direction B.
[0054] The wiring arrangement 100 also has a pressing element 123. The pressing element 123 has a first side wall 124A and a second side wall 124B opposite the first side wall 124A. The two side walls 124A, 124B are spaced apart from each other, wherein the conductor connection cavity 111 extends into the free space between the two side walls 124A, 124B. The clamping foot 115 of the clamping spring 113 is deflectably positioned in the free space between the two side walls 124A, 124B. The conductor 200 to be connected is clamped between the first side wall 124A and the second side wall 124B.
[0055] Especially if Figure 1 As shown, the first side wall 124A has a certain length, thereby forming an extension of the wall portion 125 of the housing 110 that defines the conductor insertion opening 121. Thereby, the conductor 200 inserted into the conductor insertion opening 111 is further guided along the side walls 124A, 124B of the pressing element 123 following the wall portion 125, so that the first side wall 124A and / or the second side wall 124B constitute a conductor guide in the area of the conductor connection cavity 111.
[0056] With the help of Figure 1 and Figure 2 The operating element 116 shown holds the clamping spring 113 in the clamping position. To this end, the operating element 116 rests against the clamping foot 115 of the clamping spring 113 with its operating surface 119. In order to automatically keep the operating element 116 in this position, Figure 1 and Figure 2 As shown, in the open position of the clamping spring 113 , the actuating element 116 is locked in a fixed position relative to the housing 110 by locking with the housing 110 .
[0057] To form a snap-fit, the actuating element 116 has a snap-fit contour 127 which interacts with an undercut 126 formed on the housing 110 .
[0058] The undercut 126 is formed on the wall 125 of the housing 110. Figures 1 to 15B In the technical solution shown, in particular Figure 2As shown, the undercut 126 is formed in the form of a step or a projection on the housing 110 or on a wall 125 of the housing 110. The undercut 126 can extend over the entire width of the housing 110 or of the wiring arrangement 100.
[0059] In such Figures 1 to 15B In the illustrated embodiment, the snap-in contour 127 is designed in the form of a projection extending from the body 118 of the actuating element 116. The snap-in contour 127 or the projection extends from the body 118 of the actuating element 116 toward the clamping section 122 of the current bar 112. The snap-in contour 127 or the projection can extend over the entire width of the actuating element 116. The snap-in contour 127 is designed on the body 118 of the actuating element 116 at a distance from the actuating surface 119. The snap-in contour 127 is designed on the actuating element 116 in such a way that it is located above the actuating surface 119 as viewed in the actuating direction B.
[0060] The locking of the actuating element 116 on the housing 110 can be released by means of the pressure element 123. The pressure element 123 is supported in the housing 110 in a manner that it can be linearly displaced along the displacement direction S. The pressure element 123 and the actuating element 116 are arranged relative to each other in the housing 110 in such a way that the displacement direction S extends parallel to the actuating direction B of the actuating element B.
[0061] The pressing element 123 has a sliding surface 128, which cooperates with the operating element 116 to release the locking between the operating element 116 and the housing 110. During the movement of the pressing element 123 in the opposite direction to the movement direction S, the pressing element 123 can slide along the main body 118 of the operating element 116 in a certain manner by means of its sliding surface 128, thereby pressing the operating element 116 to one side, in particular, pressing it in a direction transverse to the operating direction B, and thereby releasing the operating element 116 from the locking with the housing 110. For example, Figure 1 As shown, the sliding surface 128 extends in a manner inclined relative to the operating direction B of the operating element 116 or in a manner inclined relative to the moving direction S of the pressing element 123. Due to the oblique extension of the sliding surface 128, the sliding surface 128 preferably extends in a manner that forms an angle of approximately 25° with respect to the operating direction B of the operating element 116 or with the moving direction S of the pressing element 123. The sliding surface 128 slides along a surface 129 of the operating element 116 or a surface of the main body 118 of the operating element 116, which extends in a manner substantially opposite to the operating surface 119.
[0062] The sliding surface 128 may be formed on one of the two side walls 124A, 124B or on both side walls 124A, 124B of the pressing element 123 .
[0063] The actuating element 116 also has a retaining contour 130 that cooperates with the housing 110 and serves to retain the actuating element 116 in a fixed position relative to the housing 110 in the clamping position of the clamping spring 113. Thus, even in the clamping position of the clamping spring 113 when the conductor 200 is connected, the actuating element can be retained in a fixed position, thereby reliably preventing an unintentional movement of the actuating element 116.
[0064] In such Figures 1 to 15B In the illustrated embodiment, the retaining contour 130 is constructed in the form of a flange extending from the body 118 of the actuating element 116. The flange forming the retaining contour 130 has a flat bevel 131 in the unlocking direction of the actuating element 116 and a snap-on edge 132 in the actuating direction B of the actuating element 116. Fig.12 It can also be seen that the flange is formed on the body 118 of the operating element 116 approximately in the center of the length of the operating element 116 .
[0065] In such Figures 1 to 15B In the technical solution shown, the retaining profile 130 constructed as a flange works together with the groove surface 133 constructed on the inner wall of the housing 110. Specifically, the retaining profile 130 constructed as a flange is guided at least partially in this groove surface 133, such as Fig.11 As shown in cross-section.
[0066] Furthermore, in order to prevent the operating element 116 from being guided out of the housing 110, for example Fig. 9 As shown in the sectional view, the housing 110 has a stop surface 134 for limiting the stroke of the actuating element 116 counter to the actuating direction B. The stop surface 134 is formed in the form of a projection or a step on the inner wall of the housing 110. The stop surface 134 is positioned in such a way that when the actuating element 116 abuts against the stop surface 134, the actuating element 116 is arranged with its top side 140 formed with the tool engagement surface 120 flush with the outer side of the housing 110.
[0067] The pressing element 123 and the return spring 135 work together. If the conductor 200 to be connected abuts against the pressing surface 136 of the pressing element 123 during the connection process, the pressing element 123 moves along the moving direction S and the return spring 135 is tensioned. Once the clamping foot 115 is disengaged from the operating element 116, the pressing element 123 can immediately move back to its starting position in the opposite direction of the moving direction S due to the elastic force of the return spring 135.
[0068] The restoring spring 135 bears against a section 137 of the current bar 112 which extends perpendicularly to the clamping section 122 of the current bar 112 .
[0069] Here, the return spring 135 is formed integrally with the pressure element 123. The return spring 135 is U-shaped. The return spring 135 and the pressure element 123 can be formed of a plastic material, for example.
[0070] Figures 1 to 3 The wiring arrangement 100 is shown with a clamping spring 113 in an open position. Here, the actuating element 116 is snapped onto the housing 110 with its snap contour 127, so that the actuating element 116 rests with its actuating surface 119 on the clamping foot 115 in a fixed position, thereby holding the clamping spring 113 in the open position.
[0071] To connect the conductor 200, as Figure 4 and Figure 5 As shown, the conductor 200 is inserted into the housing 110 through the conductor insertion opening 121 along the insertion direction E. The clamping foot 115 of the clamping spring 113 is in the open position, specifically, the clamping foot 115 is held in place by the operating element 116. If the conductor 200 is inserted into the conductor connection cavity 111, the conductor 200 presses against the pressing surface 136 of the pressing element 123 that defines the conductor connection cavity 111 in the insertion direction E. As a result, the pressing element 123 is moved downward along the movement direction S. Based on this movement of the pressing element 123 along the movement direction S, the pressing element 123 slides along the operating element 116 with its sliding surface 128, thereby pushing this operating element laterally and releasing the snap between the operating element 116 and the housing 110. In this way, the clamping foot 115 of the clamping spring 113 is further deflected toward the retaining foot 114 by the operating element 116 and slightly pressed downward. By pressing down the clamping foot 115 of the clamping spring 113 in this way, even when connecting a conductor 200 with a larger conductor cross section, such as Figure 5 As shown, the clamping foot 115 of the clamping spring 113 can also be initially spaced a certain distance from the conductor 200, so that the clamping foot 115 can be accelerated during the deflection toward the conductor 200 to connect the conductor 200. In this way, the conductor 200 to be connected can be clamped reliably and well in a manner independent of the conductor cross section.
[0072] Figure 6 The clamping spring 113 is shown in a clamped position, wherein the clamping feet 114 clamp the conductor 200 against the clamping section 122 of the current bar 112 .
[0073] like Figure 7 and Figure 8 As shown, when the snap fit with the housing 110 is released, the operating element 116 moves in the opposite direction to the operating direction B. In this case, Figure 8 , Fig.10 and Fig.11As shown, the operating element 116 is immersed in the groove surface 133 of the housing 110 by means of its holding contour 130. The operating element 116 moves upward to a certain extent in the opposite direction of the operating direction B until the operating element 116 abuts against the stop surface 134 of the housing 110, thereby making the operating element 116 as shown in FIG. Fig. 9 It is shown with its top side 140 flush with the outer surface or the outside of the housing 110. In this case, the distance between the actuating surface 119 of the actuating element 116 and the clamping foot 115 of the clamping spring 113 is at a maximum.
[0074] Fig.13 The force characteristic curve of the operating element 116 is shown. The dotted line shows the force characteristic curve when the conventional wiring configuration is adopted. In the process of the clamp spring 113 moving from the clamping position to the open position, the force F that needs to be applied to the operating element 116 continues to increase. The solid line shows the force characteristic curve of the operating element 116 when the wiring configuration 100 of the present invention is adopted. In the process, the force that needs to be applied to the operating element 116 does not increase continuously, and the force characteristic curve is wavy. A slightly larger force F is required at the beginning. In this way, the operating element 116 can be moved in a jerky manner, and the buckle can be reliably realized. Subsequently, the force that needs to be applied is reduced.
[0075] Fig.14 The pressure element 123 is shown again with a return spring 135 formed on the pressure element 123. It can be seen in particular that the pressure element 123 has a free space 138 on the side wall 124A for the lateral insertion of the clamping spring 113 into the housing 110. The free space 138 is arranged below the sliding surface 128, viewed in the displacement direction S of the pressure element 123. The free space 138 allows the clamping spring 113 to be displaced laterally by its clamping foot 115 passing by the side wall 124A until the clamping spring 113 with the clamping foot 115 is arranged in the pressure element 123, in particular between the two side walls 124A, 124B of the pressure element 123.
[0076] Fig.15A and Fig. 15B During the installation of the connection arrangement 100, the pressure element 123 including the return spring 135 is first fixed to the current bar 112. Fig.15A As shown by the arrow in FIG. 1 , the arrangement consisting of the pressing element 123, the return spring 135 and the current bar 112 is inserted laterally into the housing 110. The clamping spring 113 is then installed, specifically, as follows: Fig. 15BThe clip spring 113 is shown inserted laterally into the housing 110. To this end, the clamping foot 115 is slightly deflected toward the retaining foot 114 so that the clamping foot 115 is inserted through the free space 138 on the side wall 124A of the housing 110 into the area between the two side walls 124A, 124B.
[0077] exist Figures 16 to 20 Another technical solution of the wiring configuration 100 is shown in FIG. Figures 16 to 20 The functional principle of the wiring arrangement 100 shown is substantially equivalent to that of Figures 1 to 15B The wiring configuration 100 is shown. Figures 16 to 20 The illustrated solution differs in the form of the snap-in contour 127 and the retaining contour 130 on the actuating element 116 .
[0078] Here, the snap-in contour 127 is formed by an inclined surface formed on the body 118 of the actuating element 116. Fig.17 As shown, the snap-in contour 127 formed by a chamfer can cooperate with the undercut 126 formed on the inner wall of the housing 110. The snap-in contour 127 formed as a chamfer is formed on an edge surface 139 of the actuating element 116, wherein this edge surface 139 adjoins the top side 140 of the actuating element 116. The top side 140 is the side of the actuating element 116 that is formed with a tool engagement surface 120 for actuating the actuating element 116.
[0079] In addition, in Figures 16 to 20 In the illustrated embodiment, the retaining contour 130 is formed by an undercut formed on the body 118 of the actuating element 116. The undercut forming the retaining contour 130 is formed between the actuating surface 119 and the top side 140 of the actuating element 116. The undercut forming the retaining contour 130 is formed in the form of a cutout or free space on the side wall 141 of the actuating element 116, which is at an angle of 90° to the top side 140. Fig.19 As shown, the retaining contour designed as an undercut can interact with an undercut 142 , in particular a second undercut 142 , formed on the inner wall of the housing 110 .
[0080] Fig.18 The clamping spring 113 is shown in the open position. Here, the clamping foot 115 is held in the open position because the actuating element 116 rests on the clamping foot 115 with its actuating surface 119. In addition, the clamping foot 115 is snapped into the pressing side 123. For this purpose, a retaining element 143 facing the conductor connection chamber 111 is provided on one or both side walls 124A, 124B of the pressing element 123. The clamping foot 115 can be opened as shown in FIG. Fig.18 The holding element 143 is constructed in the form of a holding sheet. Here, the operating element 116 is arranged in a Fig.17 In the position shown, the actuating element 116 is latched onto the undercut 126 of the housing 110 via a latching contour 127 .
[0081] Fig. 20 1 shows a connection arrangement 100 with a clamping spring 113 in a clamped position. The clamping foot 115 is released from the latching engagement with the retaining element 143 of the pressure element 123, and the actuating element 116 is moved upwards counter to the actuating direction B, so that the actuating element 116 is now held by its retaining contour 130 on the undercut 142 of the housing 110, so that the actuating element 116 is Fig.19 It is shown arranged with its top side 140 flush with the outer side of the housing 110 d .
[0082] The position of the actuating element 116 enables the user to recognize whether the clamping spring 113 is in the open position or the clamping position.
[0083] Description of Reference Numerals
[0084] 100 Wiring Configuration
[0085] 110 Housing
[0086] 111 Conductor connection cavity
[0087] 112 Current bar
[0088] 113 Clamp spring
[0089] 114 Keep your feet
[0090] 115 Pinch
[0091] 116 Control elements
[0092] 117 Shell shaft
[0093] 118 Main Body
[0094] 119 Control Surface
[0095] 120 Tool card insertion surface
[0096] 121 Conductor insertion port
[0097] 122 Clamping section
[0098] 123 Pressing element
[0099] 124A, 124B Sidewall
[0100] 125 Wall
[0101] 126 Undercut
[0102] 127 Buckle Profile
[0103] 128 Sliding surface
[0104] 129 faces
[0105] 130 Keep the outline
[0106] 131 bevel
[0107] 132 snap edge
[0108] 133 groove surface
[0109] 134 Stop surface
[0110] 135 Return spring
[0111] 136 Pressing surface
[0112] 137 Segment
[0113] 138 Free Space
[0114] 139 Edge surface
[0115] 140 Top side
[0116] 141 Sidewall
[0117] 142 Undercut
[0118] 143 Holding element
[0119] 200 Conductor
[0120] B Control direction
[0121] E Insertion direction
[0122] S Moving direction
[0123] α Angle
Claims
1. A wiring arrangement (100) for connecting an electrical conductor (200), the wiring arrangement having - a housing (110), - a conductor connection cavity (111) constructed in the housing (110), a current bar (112) against which a conductor (200) to be connected, which is inserted into the conductor connection cavity (111), can be clamped, a clamping spring (113) having a clamping foot (115) which can be moved into a clamping position and into an open position, an actuating element (116) having a body (118) for moving the clamping foot (115) of the clamping spring (113) from a clamping position into an open position during a movement of the actuating element (116) in an actuating direction (B), wherein: In the open position of the clamping spring (113), the actuating element (116) is locked in a fixed position relative to the housing (110) by snapping into the housing (110), and - a pressing element (123) arranged in the housing (110), which has a pressing surface (136) that can be manipulated by the conductor (200) to be connected so that the clamping spring (113) is moved from an open position to a clamping position, and by manipulating the pressing surface (136), the pressing element (123) can be manipulated in a manner that releases the clamping foot (115) and thus moves from the open position to the clamping position.
2. The wiring arrangement (100) according to claim 1, characterized in that In the open position of the clamping spring (113), the actuating element (116) rests against the clamping foot (115) of the clamping spring (113) by means of an actuating surface (119) formed on the body (118).
3. The wiring arrangement (100) according to claim 1 or 2, characterized in that The pressing element (123) has a sliding surface (128) which cooperates with the operating element (116) to release the locking between the operating element (116) and the housing (110).
4. The wiring arrangement (100) according to claim 3, characterized in that The sliding surface (128) of the pressure element (123) extends in an inclined manner relative to the actuation direction (B) of the actuation element (116).
5. The wiring arrangement (100) according to any one of claims 1 to 4, characterized in that The pressing element (123) is arranged in the housing (110) in a linearly movable manner.
6. The wiring arrangement (100) according to any one of claims 1 to 5, characterized in that In order to form a snap-fit, the actuating element (116) has a snap-fit contour (127) which interacts with an undercut (126) formed on the housing (110).
7. The wiring arrangement (100) according to claim 6, characterized in that The snap-in contour (127) is designed in the form of a projection which projects from the body (118) of the actuating element (116).
8. The wiring arrangement (100) according to claim 6, characterized in that The snap-fit profile (127) is formed by an inclined surface formed on the body (118) of the operating element (116).
9. The wiring arrangement (100) according to any one of claims 1 to 8, characterized in that The actuating element (116) has a retaining contour (130) cooperating with the housing (110) for retaining the actuating element (116) in a fixed position relative to the housing (110) in a clamping position of the clamping spring (113).
10. The wiring arrangement (100) according to claim 9, characterized in that The retaining contour (130) is designed in the form of a collar which projects from the body (118) of the actuating element (116).
11. The wiring arrangement (100) according to claim 9, characterized in that The retaining contour (130) is formed by an undercut formed on the body (118) of the actuating element (116).
12. The wiring arrangement (100) according to any one of claims 1 to 11, characterized in that The housing (110) has a stop surface (134) which serves to limit a travel of the actuating element (116) counter to an actuating direction (B) of the actuating element (116).
13. The wiring arrangement (100) according to any one of claims 1 to 12, characterized in that The pressure element (123) has a retaining element (143) which engages with the clamping foot (115) in the open position of the clamping spring (113).
14. The wiring arrangement (100) according to any one of claims 1 to 13, characterized in that A return spring (135) cooperates with the pressure element (123).
15. The wiring arrangement (100) according to claim 14, characterized in that The return spring (135) is constructed integrally with the pressing element (123).
16. The wiring arrangement (100) according to any one of claims 1 to 15, characterized in that The pressure element (123) has a free space (138) on a side wall (124A, 124b) for laterally inserting the clamping spring (113) into the housing (110).