Wiring arrangement and wiring terminal
By introducing support sections and bending shape design into the clamp springs in the wiring configuration, the conductor tilt and loosening caused by external forces are solved, and the stability and reliability of the wiring configuration are improved.
Patent Information
- Application Number
- CN202290000757.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2021-11-25
- Filing Date
- 2022-11-15
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2032-11-15
AI Technical Summary
The existing wiring configuration can easily cause the conductor to tilt or loose under the action of external forces, affecting the stability of the electrical connection.
The support section is introduced into the clamp spring, forming two supporting points at a certain distance. The support section is arranged along the conductor insertion direction to absorb lateral forces and limit the movement of the conductor through a curved shape or a C-shaped/U-shaped design to prevent tilt and overinsert.
Effectively prevent the conductor from tilting and loosening in the wiring configuration, improve the reliability and stability of the electrical connection, and ensure the optimal positioning and connection performance of the conductor in the wiring configuration.
Smart Images
Figure CN222191151U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a wiring configuration for connecting an electric conductor, the wiring configuration having a current bar and a clamp spring, wherein the clamp spring has a retaining foot and a clamping foot, wherein in the clamping position of the clamping foot of the clamp spring, the conductor to be connected is clamped against the clamping section of the current bar. The utility model also relates to a wiring terminal having at least one such wiring configuration. Background Art
[0002] In such terminal arrangements, the conductor to be connected is clamped against the clamping section of the current bar by means of the clamping legs of the clamping spring, thereby producing an electrical connection. In this clamped state, forces transverse to the longitudinal axis of the conductor may act on the conductor outside the terminal arrangement or outside the terminal terminal, which may cause the conductor to tilt within the terminal arrangement and thus in the conductor connection cavity of the terminal arrangement. This may interfere with the contact between the conductor and the current bar or even completely interrupt it. Summary of the invention
[0003] In view of this, an object of the present invention is to provide a wiring configuration and a wiring terminal, which can connect electrical conductors more reliably and stably.
[0004] The solution of the utility model to achieve the above-mentioned purpose is characterized by the independent claim. The preferred construction scheme and advantageous improvement scheme of the utility model refer to the dependent claims.
[0005] The wiring arrangement of the present invention is characterized in that the clamp spring has a supporting section which is spaced a certain distance from the clamping foot and is used for supporting the conductor to be connected and / or for supporting the clamping foot.
[0006] The clamping foot of the wiring arrangement has a clamping edge at its free end, which is used to clamp the conductor to be connected against the clamping section of the current bar and thus connect it. According to the utility model, in addition to the clamping foot and the clamping edge of the clamping foot, the clamping spring has a support section, which is used to contact the connected conductor to prevent tilting. In this way, the clamping spring can form two support points for the connected conductor, wherein the first support point can be the clamping edge of the clamping spring, and the second support point can be formed by the support section of the clamping spring. The support section is spaced a certain distance from the clamping foot along the insertion direction of the conductor, so that the two support points formed for the conductor are spaced a certain distance from each other. When a force acts on the conductor outside the wiring arrangement transversely to the longitudinal axis of the conductor, the conductor presses against the support section, so that the conductor is held in place by the support section, so that the clamping foot of the clamping spring can be prevented from undesirably leaving the conductor. In this way, the conductor can be prevented from undesirably tilting or loosening from the conductor clamping position between the clamping foot of the clamping spring and the clamping section of the current bar. In this way, the support section can limit the movement of the conductor transverse to its longitudinal axis. By means of the support section, forces acting transversely to the insertion direction of the conductor into the wiring configuration can be absorbed from the connected conductor. Thus, the support section forms a force absorption device, in particular an absorption device for transverse forces acting on the connected conductor. This support section is constructed on the clamp spring, so that the support section can be formed by a strong elastic metal sheet like the clamp spring. By constructing the support section on the clamp spring, it is also possible to prevent the support section from affecting the connection performance of the conductor. In addition or as an alternative, the support section can also be used to support the clamp foot of the clamp spring or as a stop surface for the clamp foot of the clamp spring. When the clamp foot of the clamp spring moves from the clamping position to the open position, the pivoting movement of the clamp foot can be limited by the support section, specifically, the clamp foot can abut against the support section after a defined distance, so that the opening angle of the clamp foot can be limited. In this case, the clamp foot can be supported on the support section in the open position. In this way, the clamp foot and the clamp spring can be prevented from being over-opened, thereby preventing the clamp spring from being damaged due to excessive deflection of the clamp foot. In this case, the support section is preferably spaced apart from the clamping foot so that the clamping foot can be supported, in particular with its free end, preferably in the region of its clamping edge, on the support section.
[0007] A conductor connection cavity is formed between the clamping section of the current bar and the clamping foot of the clamping spring, into which the conductor to be connected can be inserted in the open position of the clamping foot of the clamping spring. The support section is preferably arranged at the end of the conductor connection cavity viewed in the insertion direction of the conductor to be connected. By positioning the support section at the end of the conductor connection cavity viewed in the plug-in direction, the smallest undesired movement of the conductor can be prevented particularly effectively with the aid of the support section. Therefore, the support section is preferably arranged behind the clamping foot of the clamping spring, viewed in the insertion direction of the conductor to be connected.
[0008] In order to prevent the conductor from being inserted too far into the conductor connection cavity and thus ensure that the conductor to be connected can be optimally positioned relative to the support section, the end of the conductor connection cavity can be limited transversely to the insertion direction by the current bar. Preferably, the conductor connection cavity is limited in the insertion direction by means of an angled section of the current bar, in particular a section bent at 90° relative to the clamping section of the current bar.
[0009] The support section is preferably arranged opposite the clamping section of the current bar. The support section and the clamping foot are therefore preferably arranged such that both are opposite the clamping section of the current bar, so that the clamping foot and the support section act on the connected conductor in the same direction. Thus, a movement of the connected conductor transversely to the insertion direction of the conductor can be limited in a first direction by the clamping section of the current bar and in a second direction opposite to the first direction by the support section of the clamping spring.
[0010] The support section can have a curved shape. Due to this curved shape, the support section can also form an inclined surface or an insertion inclined surface, along which the conductor can be guided when inserted to reach the desired position inside the conductor connection cavity. In addition to the support device and the force absorbing device, the support section can also form a guide device for the conductor. The support section can be, for example, C-shaped or U-shaped. In this case, when a force acts on the conductor transversely to the longitudinal axis of the conductor outside the wiring configuration, the apex of the C-shape or U-shape serves as a support surface or bearing surface for the conductor. In this case, the C-shaped or U-shaped support section is preferably positioned so that the opening area of the C-shape or U-shape faces away from the conductor connection cavity.
[0011] Alternatively, the support section can also be rectilinear. In this case, the support section can, for example, extend at least partially parallel to the insertion direction or parallel to the clamping section of the current bar. The support section can also extend transversely to the insertion direction of the conductor to be connected and form a kind of rod, on the free end or free edge section of which the conductor to be connected can be supported.
[0012] Preferably, the support section is formed integrally with the rest of the clamping spring. The support section can preferably be formed on the retaining foot of the clamping spring. The retaining foot can be connected to the clamping foot via an arc section. The support section can be connected to the free end of the retaining foot, so that the retaining foot is arranged between the support section and the clamping foot of the clamping spring. Due to this arrangement of the support section, the support section does not have any interaction with the clamping foot, so that the support section does not affect the connection of the conductor via the clamping foot.
[0013] The retaining foot can be bent in an L-shape. The support section can connect the free end of the retaining foot bent in an L-shape. Since the retaining foot is designed in an L-shape, the retaining foot can have two retaining surfaces extending at an angle of 90° to each other, so that the retaining foot can provide an excellent retaining effect to hold the clamping spring in its position. The retaining foot can be supported on the current bar with its two retaining surfaces, for example, in that the retaining foot at least partially rests on the current bar with its two retaining surfaces in a planar manner.
[0014] If the connection arrangement is designed as a printed circuit board connection arrangement, the current bar can have a printed circuit board contact section. This printed circuit board contact section can be designed, for example, as a soldering surface or a soldering pin in order to be soldered to the printed circuit board.
[0015] In order to move the clamping foot of the clamping spring at least from a clamping position (in which the clamping foot clamps against the clamping section of the current bar so that when a conductor is inserted into the conductor connection cavity, the conductor is clamped against the clamping section of the current bar) into an open position (in which the clamping foot is rotated away from the clamping section and the conductor connection cavity is exposed so that the conductor can be inserted into or pulled out of the conductor connection cavity), the connection arrangement can have an actuating element. The actuating element can have an actuating section, with which the actuating element can directly apply a force to the clamping foot of the clamping spring in order to actuate the clamping foot. The actuating element can also have a gripping section, by which a user can actuate the actuating element manually or with the aid of a tool (such as a screwdriver). The actuating element can be linearly guided in order to actuate the clamping foot of the clamping spring. In this case, the actuating element can also be designed as a so-called pusher. Furthermore, the actuating element can be rotatably mounted so that the actuating element can act on the clamping foot of the clamping spring with its actuating section by rotating the actuating element. In this case, the actuating element can be designed as an actuating lever.
[0016] As an alternative to providing an actuating element, the clamping foot of the clamping spring can also be actuated by means of a tool (such as a screwdriver) which is inserted into the wiring arrangement.
[0017] The solution of the present invention to achieve the above object also lies in a connecting terminal, which has a housing and at least one connecting configuration arranged in the housing, wherein the connecting configuration can be constructed and improved as described above.
[0018] The housing is preferably an insulating material housing formed of a plastic material. The housing may have an inner cavity in which one or more of the wiring configurations may be arranged. The housing has a conductor insertion opening for each wiring configuration, through which the conductor to be connected can be inserted into the conductor connection cavity of the corresponding wiring configuration.
[0019] Described connecting terminal can be constructed as PCB connecting terminal, can be placed on the PCB and connect this PCB.In addition, connecting terminal also can be constructed as terminal block, and this terminal block can be stuck on the mounting rail.
[0020] Furthermore, the wiring arrangement can also be used for plug-in connectors. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The present invention will be described in detail below with reference to the accompanying drawings in combination with preferred embodiments.
[0022] in:
[0023] Figure 1A A schematic cross-sectional view of the wiring terminal and wiring configuration of the utility model, and
[0024] Figure 1B for Figure 1A A schematic cross-sectional view of a terminal block with a conductor connected is shown. DETAILED DESCRIPTION
[0025] Figure 1A and Figure 1B FIG. 2 shows a cross-sectional view of a terminal block 200 having a housing 210 in which a wiring arrangement 100 is arranged. The housing 210 is preferably formed of an insulating material. The housing 210 has a conductor insertion opening 211, such as Figure 1B As shown, the conductor L to be connected can be inserted into the housing 210 via the conductor insertion opening, and thus inserted into the wiring arrangement 100 along the insertion direction E.
[0026] The connection arrangement 100 has a current bar 110. The current bar 110 has a clamping section 111, such as Figure 1B As shown, when the conductor L to be connected is inserted into the connection arrangement 100, the conductor to be connected is clamped against the clamping section. The current bar 110 extends with its clamping section 111 parallel to the insertion direction of the conductor L to be connected.
[0027] The current bar 110 further has a section 112 which connects the clamping section 111 and extends at a 90° angle to the clamping section 111. This section 112 delimits the conductor connection cavity 113 in the region of its end 128 transversely to the insertion direction E, thereby preventing the conductor L from being inserted too far into the conductor connection cavity 113.
[0028] Figure 1A and Figure 1B The connecting terminal 200 shown is designed as a printed circuit board connecting terminal. The current bar 110 has a printed circuit board contact section 114 which can be used to make contact with a printed circuit board. The printed circuit board contact section 114 is designed as a solder pin which protrudes from a housing 210 of the connecting terminal 200 .
[0029] The connection arrangement 100 further has a clamping spring 115 which can be used to clamp the conductor L to be connected against the clamping section 111 of the current bar 110 and thus connect it.
[0030] The clamping spring 115 is designed as a leg spring and has a holding foot 116 and a clamping foot 118 connected to the holding foot 116 via an arc section 117 .
[0031] The holding foot 116 is arranged in a fixed position. The clamping foot 118 can be pivoted relative to the holding foot 116 in order to move into a clamping position and an open position. Figure 1A and Figure 1B The clamping position of the clamping foot 118 is shown, in which the clamping foot 118 presses against the clamping section 111 of the current bar 110 or against the conductor L inserted into the conductor connection cavity 113. In the open position, the clamping foot 118 is deflected in the direction of the holding foot 116 and thus pivoted away from the clamping section 111 of the current bar 110, so that the conductor connection cavity is exposed in order to insert the conductor L into this conductor connection cavity or to withdraw it from this conductor connection cavity.
[0032] The clamping foot 118 has a clamping edge 119 at its free end. Figure 1B As shown, the clamping edge serves to clamp the clamping foot 118 against the inserted conductor L in the clamping position.
[0033] The clamp spring 115 also has a support section 120 for the conductor L to be connected. A force K extending transversely to the insertion direction E or transversely to the longitudinal axis of the conductor L acting on the conductor L outside the wiring arrangement 100 or outside the terminal 200 can be received by the support section 120, specifically, the conductor L can be supported on the support section 120, thereby preventing the conductor L from tilting inside the conductor connection chamber 113.
[0034] Furthermore, the supporting section 120 can also serve as a stop surface for the clamping foot 118 of the clamping spring 115 when the clamping foot 115 is moved from the clamping position into the open position.
[0035] The support section 120 is arranged at a distance from the clamping foot 118 of the clamping spring 115 in the insertion direction E. The support section 120 is therefore separated from the clamping foot 118 in its effect, so that the support section 120 does not affect the connection of the conductor L by means of the clamping foot 118. The support section 120 is at a distance from the clamping foot 118, so that the clamping foot 118 can abut against the support section 120 with its free end or with its clamping edge 119 in its open position.
[0036] Just like the clamping feet 118, the support section 120 is arranged opposite to the clamping section 111 of the current bar 110. Therefore, the support section 120 and the clamping feet 118 act in the same direction on the connected conductor L. The conductor connection chamber 113 is limited on a first side by the support section 120 and the clamping feet 118 and on a second side opposite to the first side by the clamping section 111 of the current bar 110.
[0037] The supporting section 120 is arranged at the end 128 of the conductor connection chamber 113, viewed in the insertion direction E. The supporting section 120 can thus support the conductor L at its free end. In this way, even the slightest displacement of the connected conductor L can be particularly reliably avoided by the supporting section 120, so that forces K acting on the conductor L are promptly absorbed by the supporting section 120.
[0038] In the solution shown here, the support section 120 has a curved shape. Due to this curved shape, the support section 120 has an insertion slope 121 for the conductor L to be connected, which can be used to insert the conductor L, in particular the free end of the conductor L, into the correct position inside the conductor connection cavity 113. When a force K acts on the conductor L outside the wiring arrangement 100 or outside the terminal 200 transversely to the longitudinal axis of the conductor L, the apex 122 of the curved shape of the support section 120 forms a support surface or bearing surface for the conductor L to be connected.
[0039] The supporting section 120 is C-shaped or U-shaped. The C-shaped or U-shaped supporting section 120 is positioned such that the opening area of the C-shape or U-shape faces away from the conductor connection space 113 .
[0040] The support section 120 is formed on the holding foot 116 of the clamping spring 115. The support section 120 connects the free end of the holding foot 116. The holding foot 116 is therefore arranged between the support section 120 and the clamping foot 118. The support section 120 is formed in the extension of the holding foot 116.
[0041] The retaining foot 116 is bent in an L-shape. Since the retaining foot 116 is designed in an L-shape, it has two retaining surfaces 123, 124 extending at an angle of 90° to each other, so that the retaining foot 116 can provide an excellent retaining effect to hold the clamping spring 115 in its position. The retaining foot 116 can be supported on the current bar 110 with its two retaining surfaces 123, 124, specifically, the retaining foot 116 at least partially rests on the current bar 110 in a planar manner with its two retaining surfaces 123, 124. The retaining foot 116 here rests in a planar manner on the section 112 of the current bar 110 with its first retaining surface 123. In this way, tilting movements of the clamping spring 115 can be particularly reliably prevented.
[0042] The connection arrangement 100 or the connection terminal 200 shown here also has an actuating element 125, which cooperates with the clamping foot 118 of the clamping spring 115 in order to move the clamping foot 118 of the clamping spring 115 at least from the clamped position into the open position when the actuating element 125 is moved in the actuating direction B. The actuating element 125 is designed here as a linearly guided actuating element 125, also called a pusher. The actuating element 125 has an actuating section 126, which cooperates directly with the clamping foot 118 of the clamping spring 115. The actuating element 125 also has a grip section 127, by which the user can actuate the actuating element 125 manually or with the aid of a tool, such as a screwdriver.
[0043] Description of Reference Numerals
[0044] 100 Wiring Configuration
[0045] 110 Current bar
[0046] 111 Clamping section
[0047] 112 Segment
[0048] 113 Conductor connection cavity
[0049] 114 Printed circuit board contact section
[0050] 115 Clamp Spring
[0051] 116 Keep your feet
[0052] 117 Arc Segment
[0053] 118 Foot Clip
[0054] 119 Clip edge
[0055] 120 Support section
[0056] 121 Insert bevel
[0057] 122 Vertex
[0058] 123 First holding surface
[0059] 124 Second holding surface
[0060] 125 Control elements
[0061] 126 Operation section
[0062] 127 Grip Section
[0063] 128 end
[0064] 200 Terminal Blocks
[0065] 210 Shell
[0066] 211 Conductor insertion port
[0067] B Control direction
[0068] E Insertion direction
[0069] K-Force
[0070] L conductor
Claims
1. A connection arrangement (100) for connecting an electrical conductor (L), the connection arrangement comprising a current bar (100) and a clamping spring (115), the clamping spring having a holding foot (116) and a clamping foot (118), wherein in the clamped position of the clamping foot (118) of the clamping spring (115), the conductor (L) to be connected is clamped against a clamping section (111) of the current bar (110), It is characterized in that The clamping spring (115) has a support section (120) which is spaced a certain distance from the clamping foot (118) and is used to support the conductor (L) to be connected and / or to support the clamping foot (118), wherein the support section (120) has a bent shape.
2. The wiring arrangement (100) according to claim 1, characterized in that The supporting section (120) is arranged at an end (128) of the conductor connection cavity (113) viewed in the insertion direction (E) of the conductor (L) to be connected.
3. The wiring arrangement (100) according to claim 2, characterized in that The end (128) of the conductor connection cavity (113) is limited by the current bar (110) transversely to the insertion direction (E).
4. The wiring arrangement (100) according to any one of claims 1 to 3, characterized in that The supporting section (120) is arranged opposite a clamping section (111) of the current bar (110).
5. The wiring arrangement (100) according to any one of claims 1 to 4, characterized in that The supporting section (120) is formed onto a retaining foot (116) of the clamping spring (115).
6. The wiring arrangement (100) according to any one of claims 1 to 5, characterized in that The retaining foot (116) is bent in an L shape.
7. The wiring arrangement (100) according to any one of claims 1 to 6, characterized in that The current bar (110) has a printed circuit board contact section (114).
8. The wiring arrangement (100) according to any one of claims 1 to 7, characterized in that An actuating element (125) by means of which the clamping foot (118) can be moved from the clamping position into an open position.
9. A connecting terminal (200) comprising a housing (210) and at least one connecting arrangement (100) according to any one of claims 1 to 8, which is arranged in the housing (210).