CN111864419A - Wiring device and wiring terminal - Google Patents
Wiring device and wiring terminal Download PDFInfo
- Publication number
- CN111864419A CN111864419A CN202010354752.3A CN202010354752A CN111864419A CN 111864419 A CN111864419 A CN 111864419A CN 202010354752 A CN202010354752 A CN 202010354752A CN 111864419 A CN111864419 A CN 111864419A
- Authority
- CN
- China
- Prior art keywords
- clamping
- conductor
- traction frame
- legs
- current bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4854—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a wire spring
- H01R4/4863—Coil spring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4854—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a wire spring
- H01R4/4863—Coil spring
- H01R4/4872—Coil spring axially compressed to retain wire end
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
- H01R4/5083—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a wedge
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
- H01R9/24—Terminal blocks
- H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
Landscapes
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
Abstract
The invention relates to a connection device (100) for connecting electrical conductors (300), comprising a current bar (110), a traction frame (111) having two clamping legs (113, 114) arranged parallel to one another and a connecting web (115) which connects the two clamping legs (113, 114) to one another, wherein the clamping legs (113, 114) each have a through-opening (116, 117) through which the current bar (110) is guided and through which the conductor (300) to be connected is guided in a clamping position, such that the conductor (300) is clamped against the current bar (110), and a compression spring (112) which is arranged between the connecting web (115) of the traction frame (111) and the current bar (110) and is compressible when the traction frame (111) is moved from the clamping position into an open position, wherein the traction frame (111) has at least one clamping lug (118), the clamping plate projects into a clamping space (119) formed between the two clamping legs (113, 114), forms an insertion ramp for inserting a conductor (300) to be connected into the clamping space (119), and clamps the conductor (300) against the current bar (110) in the clamping position by means of the clamping plate.
Description
Technical Field
The invention relates to a connection device for connecting electrical conductors, comprising a current bar, a traction frame and a compression spring, wherein the traction frame comprises two clamping legs which are arranged parallel to one another and a connecting web which connects the two clamping legs to one another, wherein the clamping legs each comprise a through-opening through which the current bar is guided and through which the conductor to be connected is guided in a clamping position, such that the conductor is clamped against the current bar, and wherein the compression spring is arranged between the connecting web of the traction frame and the current bar and is compressible when the traction frame is moved from the clamping position into an open position. The invention also relates to a connecting terminal having an insulating housing and at least one connecting device formed in this way and arranged in the insulating housing.
Background
Connection terminals with such a connection device are generally used as high-current terminals, in which connection terminals with a diameter of preferably 35mm can be connected2To 150mm2Of a larger cross-section conductor. The connection device has a traction frame connection formed by a U-shaped traction frame and a compression spring. The pressure spring is arranged in the traction frame in such a way that it draws the lower end of the traction frame towards the lower side of the current bar, clamping the electrical conductor, which is inserted here through the through-hole in the clamping leg of the traction frame, to the lower side of the current bar, which extends through the through-hole of the clamping leg of the traction frame. Such a terminal is known, for example, from EP 1798819B 1. A disadvantage is that the pressure spring must be compressed axially in order to open the clamping point of such a traction carriage connection, which in such a connection device can usually only be realized with the aid of auxiliary operating elements, so that the user is required to exert more effort on the connection of the conductors.
Disclosure of Invention
It is therefore an object of the present invention to provide a connecting device and a connecting terminal, in which the effort of a user for connecting conductors can be reduced.
This object is solved by the features of the independent claims. Advantageous embodiments and advantageous developments of the invention are specified in the dependent claims.
The connection device according to the invention is characterized in that the traction frame has at least one clamping lug which projects into a clamping space formed between the two clamping legs, the clamping lug forming a lead-in ramp for inserting the conductor to be connected into the clamping space and clamping the conductor against the current bar in the clamping position by means of the clamping lug.
According to the invention, the traction frame now has a clamping plate which projects into a clamping space or free space formed between two clamping legs of the traction frame, so that when a conductor is inserted into the clamping space, it can form a lead-in ramp for the conductor to be connected. For this purpose, the clamping plate preferably projects into the clamping space at an angle or at an angle, in that the clamping plate is arranged at an angle or at an angle with respect to the clamping leg. When the conductor is inserted into the clamping space, it preferably hits the clamping piece and slides along the clamping piece into the clamping space. The conductor can thus exert a pressure on the clamping plate and thus on the traction frame when inserted into the clamping space, so that the traction frame can be automatically moved into the open position. The traction frame and the entire connection device can thereby be formed so as to be directly insertable, so that the conductors can be connected without the aid of additional tools for transferring the traction frame into the open position. In particular, a tool-free direct insertion of the rigid conductor is thus achieved. The clamping plate is formed such that, in addition to forming an insertion aid, it is also possible to clamp a conductor inserted into the clamping space against the current bar, in particular in such a way that a conductor inserted into the clamping space can be pressed against the current bar by the clamping plate. The clamping lug which is pressed against the connected conductor forms a pull-out stop for the conductor by projecting into the clamping space, so that the conductor cannot be pulled out of the clamping space unintentionally, since the lug can wedge together with the connected conductor.
In order to make it particularly easy to insert the conductor to be connected directly into the clamping space, the at least one clamping lug preferably projects into the clamping space at an angle of 10 ≦ α ≦ 70 ° relative to the longitudinal extension of the clamping leg or of one of the clamping legs, particularly preferably at an angle of 30 ≦ α ≦ 50 °. The clamping plate therefore preferably extends into the clamping space at an angle to the longitudinal extension of the clamping leg.
The clamping plate is preferably arranged on one of the two clamping legs of the traction frame. For this purpose, the clamping plate preferably extends from one of the clamping legs into the clamping space. The clamping plate is preferably arranged on such a clamping leg, i.e. the conductor to be connected first passes through the through-hole of this clamping leg in the insertion direction and is therefore arranged closer to the conductor insertion opening of the insulating housing of the terminal.
Preferably, the at least one clamping piece is arranged as close as possible to the through-opening of the clamping leg, in order to be able to insert the conductor to be connected more easily. The at least one clamping flap can preferably extend into the clamping space starting from an edge region, which defines the through-opening of one of the two clamping legs. The edge region of the through-hole preferably forms a lower edge of the through-hole, which lower edge points in the direction of the current bar.
In order to make it possible for the clamping tabs to form a particularly good self-locking for forming pull-out stops of the connected conductors from the clamping space, at least one clamping tab can be mounted so as to be pivotable relative to the two clamping legs. Due to the swingable mounting, the clamping piece can be further swung into the clamping space when inserting the conductor into the clamping space, thereby facilitating the insertion of the conductor. The pivotable arrangement of the clamping tongues achieves a self-locking if the conductor is already inserted and connected, since the clamping tongues can be pressed more firmly against the conductor and thus wedged more firmly against the conductor due to the pivotability when the conductor is pulled out of the clamping space, so that an undesired pulling out of the conductor can be avoided particularly reliably.
In order to provide a pivotable mounting, the traction carriage can, for example, have a rotary shaft on which at least one clamping plate can be pivotably mounted. The rotation shaft may be formed as a shaft body preferably transverse to the longitudinal extension of one of the clamping legs. The axis of rotation may preferably extend between two opposing edge regions, the edge regions defining the through-holes of the clamping legs. The clamping piece may have an opening through which the rotation shaft may be guided, so that the rotation shaft can be guided through the clamping piece.
The traction carriage can preferably have a limit stop for limiting the pivoting movement of the at least one clamping plate. The limit stop is preferably formed so as to prevent the clamping piece from swinging too far into the clamping space.
The object according to the invention is also achieved by a terminal having an insulating housing and at least one connection device arranged in the insulating housing, which connection device can be formed and improved as described above.
Such a terminal may have one or more such wiring devices. If the connecting terminal has two such connecting devices, the connecting terminal can, for example, form a connecting box which can be snapped onto a mounting rail.
Drawings
The invention will be further elucidated with reference to the following figures, using preferred embodiments. Wherein
Figure 1 shows a schematic view of a connecting terminal with two connecting devices according to the invention,
figure 2 shows a schematic view of the terminal of figure 1 with the conductor to be connected and the traction frame in an open position,
fig. 3 shows a schematic view of the terminal block of fig. 1 with a conductor to be connected and a traction frame in a clamped position, an
Fig. 4 shows a schematic view of another wiring device according to the present invention.
Detailed Description
Fig. 1 schematically shows a connection terminal 200 having an insulating housing 210 in which two connection devices 100 are arranged for connecting in each case one electrical conductor 300. The connecting terminal 200 is embodied in the form of a terminal block, which can be arranged on the mounting rail. Two conductor insertion openings 211 are formed in the insulating housing 210, through which one conductor 300 to be connected can each be guided into the insulating housing 210 and to the respective connecting device 100.
The connecting devices 100 each have a current bar 110, the current bars 110 being connected to one another in one piece.
Furthermore, the connection device 100 has a traction frame 111 and a compression spring 112, respectively, wherein the traction frame 111 and the compression spring 112 together form a traction frame connection.
The traction frame 111 has two clamping legs 113, 114, respectively, which are arranged parallel to one another. The two clamping legs 113, 114 are connected to each other at their upper ends by a connecting web 115. The traction frame 111 has a U-shape due to the two clamping legs 113, 114 and the connecting web 115.
As shown in fig. 4, for example, a through hole 116, 117 is formed in each of the two clamping legs 113, 114. The current rod 110 is guided through the through holes 116, 117 such that the current rod 110 passes out of the traction frame 111. Furthermore, as shown in fig. 2 and 3, the conductor 300 to be connected is guided through the two through- holes 116, 117 of the clamping legs 113, 114. Through the through- holes 116, 117, the traction frame 111 can be placed with its clamping legs 113, 114 on the current bar 110.
The traction frame 111 is arranged to be movable or pushable relative to the current bar 110. The direction of movement B of the traction frame 111 is transverse to the insertion direction E of the conductor 300 into the connection device 100 or the connection terminal 200. By movement of the traction frame 111, the traction frame can be brought into the clamping position as shown in fig. 3 and into the open position as shown in fig. 2. The traction frame 111 can be operated by a tool 400, which can be inserted into the insulating housing 210 through an opening 212 in the insulating housing 210, so that the traction frame 111 can be operated by exerting pressure on the attachment lintel 115 of the traction frame 111. For example, the tool 400 may be a screwdriver.
The pressure spring 112 is designed in the form of a helical spring. A pressure spring 112 is arranged between the connection lintel 115 of the traction frame 111 and the current bar 110. To release the connected conductor 300, the compression spring 112 is compressed during the movement of the traction frame 111 from the clamping position to the open position. This is done by applying pressure to the traction frame 111 and thus to the pressure spring 112 by means of the tool 400.
In contrast, when inserting the conductor 300 to be connected into the connection device 100, the handling of the traction carriage 111 by means of the tool 400 is not necessary, since the traction carriage 111 has a clamping lug 118 which projects into the clamping space 119 formed between the two clamping legs 113, 114. The clamping plate 118 forms a lead-in ramp for inserting the conductor 300 to be connected into the clamping space 119, along which the conductor 300 to be connected can slide and thereby exert a pressure on the clamping plate 118 and thus on the traction frame 111, thereby moving the traction frame 111, releasing the through- holes 116, 117 and thereby enabling the conductor 300 to be connected to be guided through the through- holes 116, 117. This enables direct insertion of the conductor 300, thereby enabling tool-less connection of the conductor 300.
As shown in fig. 2, the clamping tabs 118 are arranged at an angle of 10 ≦ α ≦ 70 ° to the longitudinal extension L of the clamping legs 113, 114. In the embodiment shown here, the clamping tabs 118 are arranged at an angle α of approximately 45 ° to the longitudinal extension L of the clamping legs 113, 114.
The clamping plate 118 has a clamping edge 120 at its free end, as shown in fig. 3, by means of which the conductor 300 is clamped against the current bar 110 in the clamped position.
The clamping plate 118 is arranged on one of the two clamping legs 113, 114, wherein the clamping plate 118 is arranged here on the clamping leg 113 which is located closer to the respective conductor insertion opening 211. The clamping tabs 118 are oriented from the respective clamping leg 113 in the direction of the current bar 110, so that the clamping tabs 118 point in the direction of the current bar 110. The clamping edge 120 on the clamping plate 118 likewise points in the direction of the current bar 110.
The clamping piece 118 extends approximately into the center of the clamping space 119 between the two clamping legs 113, 114.
The clamping plate 118 can extend into the clamping space 119 from an edge region, which defines the through- opening 116, 117 of one of the two clamping legs 113, 114. The edge regions may form the lower edges of the through holes 116, 117, which point in the direction of the current bar 110.
Fig. 4 shows an embodiment in which the clamping plate 118 is pivotably mounted relative to the two clamping legs 113, 114. For this purpose, the traction frame 111 has a rotary shaft 121 on which the clamping plate 118 is pivotably mounted. The rotation shaft 121 is formed as a shaft body extending transversely to the longitudinal extension L of the clamping legs 113, 114. The axis of rotation 121 extends between two opposite edge regions 122, 123 which define the through- openings 116, 117 of the clamping legs 113, 114.
In the embodiment shown in fig. 4, the clamping piece 118 is pivoted further counterclockwise into the clamping space 119 when inserting the conductor 300, in order to be able to insert the conductor 300 into the clamping space 119. The pivotable arrangement of the clamping plate 118 enables self-locking if the conductor 300 is already inserted and connected, since the clamping plate 118 pivots clockwise due to the pivotability when the conductor 300 is pulled out of the clamping space 119 and is thereby pressed and wedged more firmly against the conductor 300. This makes it possible to particularly reliably avoid undesired pulling-out of the conductor 300.
In order to limit the pivoting movement of the clamping plate 118, the traction frame 111 can have limit stops. The limit stop prevents the clamping plate 118 from swinging too far into the clamping space 119 when connecting the conductors 300. The limit stop may be arranged below the clamping tab 118 on one of the clamping legs 113, 114. The limit stop can also project into the clamping space 119.
Description of the reference numerals
100 wiring device
110 current bar
111 traction frame
112 pressure spring
113 clamping leg
114 clamping leg
115 connecting lintel
116 through hole
117 through hole
118 clamping piece
119 clamping space
120 clamping edge
121 rotating shaft
122 edge region
123 edge region
200 connecting terminal
210 insulating shell
211 conductor insertion opening
212 opening (212)
300 conductor
400 tool
Direction of movement of B
E direction of insertion
L longitudinal extension
Angle alpha
Claims (8)
1. A connecting device (100) for connecting an electrical conductor (300) has
-a current bar (110),
-a traction frame (111) having two clamping legs (113, 114) arranged parallel to each other and a connecting web (115) connecting the two clamping legs (113, 114) to each other, wherein the clamping legs (113, 114) each have a through-hole (116, 117) through which the current bar (110) is guided and through which the conductor (300) to be connected is guided in a clamping position such that the conductor (300) is clamped against the current bar (110), and
-a pressure spring (112) arranged between the connection lintel (115) of the traction frame (111) and the current bar (110), the pressure spring being compressible when the traction frame (111) is moved from the clamping position to the open position,
characterized in that the traction frame (111) has at least one clamping lug (118) which projects into a clamping space (119) formed between the two clamping legs (113, 114), forms a lead-in ramp for inserting the conductor (300) to be connected into the clamping space (119), and by means of which the conductor (300) is clamped against the current bar (110) in the clamped position.
2. The wiring connection device (100) according to claim 1, characterized in that the at least one clamping tab (118) projects into the clamping space (119) at an angle of 10 ° ≦ α ≦ 70 ° relative to the longitudinal extension (L) of the clamping leg (113, 114).
3. The wiring lug (100) according to claim 1 or 2, characterized in that the at least one clamping tab (118) is arranged on one of the two clamping legs (113, 114) of the traction frame (111).
4. The wiring lug (100) according to claim 3, characterized in that the at least one clamping tab (118) extends into the clamping space (119) starting from an edge region, which edge region defines the through-opening (116, 117) of one of the two clamping legs (113, 114).
5. The wiring lug (100) according to any one of claims 1 to 4, characterized in that the at least one clamping lug (118) is mounted pivotably relative to the two clamping legs (113, 114).
6. The wiring lug (100) according to claim 5, wherein the traction frame (111) has a rotation axis (121) on which the at least one clamping lug (118) is pivotably mounted.
7. The wiring lug (100) according to claim 5 or 6, characterized in that the traction frame (111) has a limit stop for limiting the pivoting movement of the at least one clamping lug (118).
8. Terminal (200) having an insulating housing (210) and at least one wiring lug (100) formed according to any one of claims 1 to 7, which is arranged in the insulating housing (210).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019111159.5A DE102019111159B4 (en) | 2019-04-30 | 2019-04-30 | Connection arrangement and connection terminal |
| DE102019111159.5 | 2019-04-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111864419A true CN111864419A (en) | 2020-10-30 |
| CN111864419B CN111864419B (en) | 2022-05-31 |
Family
ID=70470734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010354752.3A Active CN111864419B (en) | 2019-04-30 | 2020-04-29 | Wiring device and wiring terminal |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3734767B1 (en) |
| CN (1) | CN111864419B (en) |
| DE (1) | DE102019111159B4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230026090A1 (en) * | 2021-07-21 | 2023-01-26 | Anytek Electronic Technology (shenzhen) Co., Ltd. | Coil spring type wire-locking terminal block |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19615599A1 (en) * | 1996-04-19 | 1997-10-23 | Electro Terminal Gmbh | Ribbon cable conductor wire contacting device e.g. for strip lighting |
| DE102015112433A1 (en) * | 2015-07-29 | 2017-02-02 | Wago Verwaltungsgesellschaft Mbh | Conductor terminal |
| DE102013109640B4 (en) * | 2013-09-04 | 2018-05-24 | Wago Verwaltungsgesellschaft Mbh | Spring-cage terminal and terminal component |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE256346T1 (en) * | 2000-12-11 | 2003-12-15 | Hager Electro | BISTABLE ELECTRICAL CONNECTION TERMINAL |
| DE102005060410A1 (en) | 2005-12-15 | 2007-06-21 | Phoenix Contact Gmbh & Co. Kg | Electrical terminal |
-
2019
- 2019-04-30 DE DE102019111159.5A patent/DE102019111159B4/en active Active
-
2020
- 2020-04-20 EP EP20170273.5A patent/EP3734767B1/en active Active
- 2020-04-29 CN CN202010354752.3A patent/CN111864419B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19615599A1 (en) * | 1996-04-19 | 1997-10-23 | Electro Terminal Gmbh | Ribbon cable conductor wire contacting device e.g. for strip lighting |
| DE102013109640B4 (en) * | 2013-09-04 | 2018-05-24 | Wago Verwaltungsgesellschaft Mbh | Spring-cage terminal and terminal component |
| DE102015112433A1 (en) * | 2015-07-29 | 2017-02-02 | Wago Verwaltungsgesellschaft Mbh | Conductor terminal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230026090A1 (en) * | 2021-07-21 | 2023-01-26 | Anytek Electronic Technology (shenzhen) Co., Ltd. | Coil spring type wire-locking terminal block |
| US11777245B2 (en) * | 2021-07-21 | 2023-10-03 | Anytek Electronic Technology (shenzhen) Co., Ltd. | Coil spring type wire-locking terminal block |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111864419B (en) | 2022-05-31 |
| DE102019111159A1 (en) | 2020-11-05 |
| EP3734767B1 (en) | 2022-09-14 |
| EP3734767A1 (en) | 2020-11-04 |
| DE102019111159B4 (en) | 2023-06-07 |
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