Terminal
20220384967 · 2022-12-01
Inventors
Cpc classification
H01R11/01
ELECTRICITY
International classification
H01R11/01
ELECTRICITY
Abstract
The invention relates to a terminal (1), in particular an installation terminal, for connection of an electrical conductor (2) without stripping, having at least one conductor insertion area (13) for inserting an electrical conductor (2), insulated with an insulating material, into the terminal (1) in a conductor insertion direction, wherein the terminal (1) furthermore has, for each conductor insertion area (13), an actuating part (50), which is rotatable about an axis of rotation, and an insulation-piercing contact (30) having a cutting edge (33) for cutting through the insulating material and establishing electrical contact with the electrical conductor (2), wherein the cutting edge (33) extends about the axis of rotation along an arc, wherein the insulation-piercing contact (30) is connected to the actuating part (50) in such a way that, via a rotation of the actuating part (50) about the axis of rotation, the insulation-piercing contact (30) is movable between a contacting position, in which the cutting edge (33) intersects the conductor insertion area (13) for establishing electrical contact with an inserted electrical conductor (2), and a release position, in which the cutting edge (33) clears the conductor insertion area.
Claims
1. Terminal (1), in particular an installation terminal, for connection of an electrical conductor (2) without stripping, having at least one conductor insertion area (13) for inserting an electrical conductor (2), insulated with an insulating material, into the terminal (1) in a conductor insertion direction, wherein the terminal (1) furthermore has, for each conductor insertion area (13): an actuating part (50), which is rotatable about an axis of rotation, and an insulation-piercing contact (30) having a cutting edge (33) for cutting through the insulating material and establishing electrical contact with the electrical conductor (2), wherein the cutting edge (33) extends about the axis of rotation along an arc, wherein the insulation-piercing contact (30) is connected to the actuating part (50) in such a way that, via a rotation of the actuating part (50) about the axis of rotation, the insulation-piercing contact (30) is movable between a contacting position, in which the cutting edge (33) intersects the conductor insertion area (13) for establishing electrical contact with an inserted electrical conductor (2), and a release position, in which the cutting edge (33) clears the conductor insertion area.
2. Terminal (1) according to claim 1, wherein, in the contacting position, the cutting edge (33) intersects or passes through a conductor insertion plane (E), which is parallel to the conductor insertion direction and to the axis of rotation.
3. Terminal (1) according to claim 1, wherein the axis of rotation is arranged in the conductor insertion area (13) or an elongation thereof in the conductor insertion direction.
4. Terminal (1) according to claim 1, wherein the cutting edge (33) at least partially delimits a cutting opening, and wherein the electrical conductor (2) is at least partially arranged in the cutting opening when the insulation-piercing contact (30) electrically contacts the electrical conductor (2) in the contacting position.
5. Terminal (1) according to claim 4, wherein the cutting opening is formed by two cutting portions (34), which are preferably integrally formed with one another and are furthermore preferably designed to be resilient transversely to the conductor insertion direction, in order to electrically contact the electrical conductor (2) in a clamping manner in the cutting opening.
6. Terminal (1) according to claim 1, wherein the arc is an arc of a circle or an arc of an ellipse, and/or wherein the cutting edge (33) has the same radial spacing from the axis of rotation along the arc.
7. Terminal (1) according to claim 1, wherein the cutting edge (33), as a result of the rotation of the actuating part (50), is movable on a circular path with a defined radius with respect to the axis of rotation.
8. Terminal (1) according to claim 1, wherein the insulation-piercing contact (30) is designed as an integral component, preferably as a punched and bent part.
9. Terminal (1) according to claim 1, wherein the terminal (1) has a contact part (40), and wherein the insulation-piercing contact (30) has a contact portion (35), which is in electrical contact with the contact part (40) only or at least in the contacting position.
10. Terminal (1) according to claim 9, wherein the contact portion (35) and the contact part (40) are designed to correspond in such a way that, in the contacting position, they engage in one another in a comb-like and/or clamping manner for electrical contacting.
11. Terminal (1) according to claim 9, wherein the contact portion (35) protrudes radially from the insulation-piercing contact (30), with respect to the axis of rotation, by means of a contact area.
12. Terminal (1) according to claim 9, wherein, if the terminal (1) has a plurality of conductor insertion areas (13), each having a separate actuating part (50) and insulation-piercing contact (30), the insulation-piercing contacts (30) can be electrically contacted accordingly via the contact part (40).
13. Terminal (1) according to claim 1, wherein a rotational movement between the contacting position and the release position is in an angular range of 60 to 120° and is preferably 90°.
14. Terminal (1) according to claim 1, wherein the actuating part (50) has a lever portion (51) for rotating the actuating part (50) about the axis of rotation, wherein, in the contacting position, the lever portion (51) preferably extends parallel to the conductor insertion direction and furthermore preferably adjacent to the conductor insertion area (13).
15. Terminal (1) according to claim 1, wherein the actuating part (50) has a rotational-positioning portion (52), which, in the contacting position and/or in the release position, forms a stop and/or a catch mechanism with a corresponding rotational-positioning portion (16).
16. Terminal (1) according to claim 1, wherein the conductor insertion area (13), at least in the contacting position, is surrounded radially circumferentially with respect to the conductor insertion direction in an electrically insulating manner.
17. Terminal (1) according to claim 1, further having an insulating-material housing (10), in which the actuating part (50) is rotatably received, wherein the insulating housing (10) preferably has or forms the corresponding rotational-positioning portion (16).
18. Terminal (1) according to claim 17, wherein the insulating-material housing (10) has a conductor insertion channel, which forms at least part of the conductor insertion area (13) and/or defines the conductor insertion direction.
19. Terminal (1) according to claim 17, wherein the conductor insertion area (13), at least in the contacting position, is delimited by the insulating-material housing (10) and the actuating part (50), preferably by the lever portion (51) thereof.
20. Terminal (1) according to claim 17, wherein the insulating-material housing (10) has a recess (14) such that at least part of the insulation-piercing contact (30) is arranged in the recess (14) whilst it is moved via a rotation of the actuating part (50), wherein the part of the insulation-piercing contact preferably has the contact area (35) and/or the recess (14) is preferably a guide groove.
21. Terminal (1) according to claim 20, wherein the insulating-material housing (10) has a base in which the recess (14) is at least partially formed.
22. Terminal (1) according to claim 20, wherein the insulating-material housing (10), preferably its base, has a bulge (15), in which the recess (14) is at least partially formed.
Description
DESCRIPTION OF A PREFERRED EMBODIMENT
[0035] A detailed description of the figures is given below. In the figures:
[0036]
[0037]
[0038]
[0039]
[0040]
[0041]
[0042]
[0043]
[0044] The electrical conductor 2 conventionally has insulation or an insulating material, wherein the insulating material sheathes a wire or a conductor core in order to electrically insulate the conductor core and therefore serve as touch protection. The insulating material is produced from an electrically insulating material, for example a plastic. The conductor core conventionally consists of a (metallic) wire or a plurality of twisted wires. The electrical currents of the electrical conductor 2 are conducted via the conductor core.
[0045] The terminal 1, as shall be described in more detail below, is suitable for a connection of the electrical conductor 2 without stripping. This means that the terminal 1 enables an electrical conductor 2 to be electrically contacted by means of the terminal in that the electrical conductor 2 does not have to be stripped; therefore, before the insertion of the electrical conductor 2 into the terminal 1, it is not necessary to remove part of the insulating material along a certain length of the electrical conductor 2 so that it can be electrically contacted in the terminal 1.
[0046] The terminal 1 can have a housing (insulating-material housing) 10, which is provided in general for insulation of the electrical connection provided by the terminal 1. The housing 10 is therefore designed as an insulating-material housing. The housing 10 is preferably made of an insulating material, for example plastic. As can be seen in the figures, the housing 10 can be formed in multiple parts and can therefore have at least or only a first housing part 11 and a second housing part 12. The first housing part 11 is preferably designed as a housing upper part or housing cover. The second housing part 12 is preferably designed as a housing lower part or housing base.
[0047] The housing parts 11, 12 are connected to one another in order to form the housing 10. By way of example, the connection of the housing parts 11, 12 can be realised by means of a force- and/or form-fitting connection. For example, it is conceivable that the housing parts 11, 12 have mutually corresponding connecting elements, which are in (corresponding) engagement with one another in order to connect or attach the housing parts 11, 12 to one another. The connecting elements can be designed for example as a snap and/or latching connection, so that, as a result of simply snapping or latching the housing part 11 onto the housing part 12, they can be connected or attached to one another. However, the invention is not restricted to a design of the housing 10 which comprises multiple parts. By way of example, the housing 10 can also be provided in one part, for example in that the previously described housing parts 11, 12 are integrally formed with one another.
[0048] The terminal 1 has at least one conductor insertion area 13, which is suitable for inserting an electrical conductor such as the electrical conductor 2 into the terminal 1 in a conductor insertion direction. In the exemplary embodiment shown in the figures, the terminal 1 has two conductor insertion areas 13, namely one for the (first) electrical conductor 2 and another for the further (second) electrical conductor 2. However, the terminal 1 is not restricted to a particular number of conductor insertion areas. By way of example, the terminal 1 can also have only one conductor insertion area for a single electrical conductor. It is also conceivable that the terminal 1 has more than two conductor insertion areas 13. Only one of the conductor insertion areas 13 shown in the figures will be described below. This description applies analogously to the further conductor insertion area 13 and, if present, each of the other further conductor insertion areas.
[0049] The conductor insertion area 13, at least in the contacting position, can be surrounded radially circumferentially with respect to the conductor insertion direction in an electrically insulating manner. This radially circumferential electrical insulation can be configured for example such that it defines the conductor insertion direction. As illustrated by way of example in the figures, the conductor insertion area 13 can be formed at least partially by a conductor insertion channel or it can be a conductor insertion channel. The conductor insertion area 13 preferably has a conductor insertion opening. The conductor insertion channel can be designed to define the conductor insertion direction of the conductor insertion area 13. The housing 10 can have or form the conductor insertion area 13, i.e. the conductor insertion channel, for example. By way of example, the conductor insertion area is delimited, on the one hand, by the housing upper part 11 and, on the other, by the housing lower part 12.
[0050] The terminal 1 has an actuating part 50 for the (i.e. each) conductor insertion area 13. The actuating part 50 is rotatable about an axis of rotation, for example in that the actuating part 50 is rotatably received in the housing 10. The axis of rotation can be arranged such that it is arranged in the conductor insertion area 13 or an elongation thereof in the conductor insertion direction. This elongation can have a design which differs from that of the conductor insertion area 13, for example a design which is not formed by a or the conductor insertion channel. It is preferable if the actuating part 50 has a mounting area, which is mounted or received in a corresponding mounting area of the housing 10, so that the actuating part 50 is received to be rotatable about the axis of rotation. The housing-side mounting area can be formed in the first housing part 11 and/or in the second housing part 12. It is preferable if the mounting area of the actuating part 50 and the mounting area of the housing 11 are designed to correspond to one another, for example in that the mounting area in the case of the actuating part is designed as a recess and the mounting area in the case of the housing 10 is designed as a projection.
[0051] Moreover, the terminal 1 has an insulation-piercing contact 30 for the conductor insertion area 13. The insulation-piercing contact 30 has one or more cutting edges 33, which is/are designed to cut through the insulating material of the electrical conductor 2 so that (without stripping) it thereby comes into electrical contact with the electrical conductor 2 and its conductor core and clamps them. In the schematic sectional views according to
[0052] As illustrated by way of example in
[0053] The cutting edge 33 can at least partially delimit a cutting opening. For example, as in the embodiment illustrated by way of example in the figures, the cutting opening can be designed to be substantially V-shaped. It is preferable if the cutting opening is delimited at least by the first cutting edge area 33.1 and preferably by the second cutting edge area 33.2. For example, the first cutting edge area 33.1 of the one cutting edge 33 and the first cutting edge area 33.1 of the other cutting edge 33 can form the V shape of the cutting opening. In this case, the two first cutting edge areas 33.1 can therefore extend at an angle with respect to the respective second cutting edge area 33.2. It is preferable if the second cutting edge areas 33.2 form a slot area (i.e. preferably an area in which the cutting opening has a substantially constant width).
[0054] As can be seen most notably in
[0055] The insulation-piercing contact 30 can be produced by means of different production methods, for example in a reshaping and/or separation process. It is preferable if the insulation-piercing contact 30 is designed as an integral component, preferably as a punched and bent part. The insulation-piercing contact 30 can be produced from a metal sheet. The insulation-piercing contact 30 preferably has the same thickness throughout, apart from at the at least one cutting edge 33.
[0056] The insulation-piercing contact 30 is connected to the actuating part 50. A movement of the insulation-piercing contact 30 can thus take place without tools by means of the actuating part 50, for example by means of a lever actuation. The connection between the insulation-piercing contact 30 and the actuating part 50 can be realised directly or indirectly. The insulation-piercing contact 30 is preferably connected to the actuating part 50 via a force- and/or form-fitting connection. The actuating part 50 can have an assembly portion, for example, on and/or in which the insulation-piercing contact 30 is at least partially received in order to be connected to the actuating part 50. In this case, the connection between the insulation-piercing contact 30 and the actuating part 50 is such that, upon a rotation of the actuating part 50 about the axis of rotation, the insulation-piercing contact 30 rotates together with the actuating part 50. Via the rotation of the actuating part 50 about the axis of rotation, the insulation-piercing contact 30 can therefore be moved between a release position and a contacting position. The release position is illustrated by way of example in
[0057] As can be seen in
[0058] The movement of the actuating part 50 into the contacting position and therefore the electrical contacting of the electrical conductor 2, without stripping, by means of the insulation-piercing contact 30 and its cutting edge 33 takes place as follows with reference to
[0059] Since the cutting edge 33 extends about the axis of rotation along an arc, the cutting edge 33 will cut through the insulating material of the electrical conductor 2 during the rotation of the actuating part 50 through an advantageous angle and along a relatively long cutting path. It is thus unnecessary to have a high actuating force act on the actuating part 50 in order to cut through the insulating material. The electrical contacting of the electrical conductor 2 is thus made easier by the terminal 1. Furthermore, the terminal 1 is more compact as a result of the cutting edge 33 extending in an arc. It is particularly advantageous if the cutting edge 30 is movable with respect to the axis of rotation as a result of the rotation of the actuating part 50 on a circular path with a defined radius. The actuating forces can thus be further reduced.
[0060] As can be seen in
[0061] As can be seen in
[0062] The contact portion 35 can be formed in different ways. For example, the contact portion 35 can protrude radially from the insulation-piercing contact 30, with respect to the axis of rotation, by means of a contact area. It is preferable if the contact portion 35 is integrally formed with the cutting edge 33. For example, the contact portion 35 can be formed by bending and/or punching, for example from the same metal sheet from which the cutting edge 33 is also provided. As can be seen by way of example in
[0063] The contact part 40 can provide different functions. It is preferable if a plurality of insulation-piercing contacts 30 are electrically contactable via the contact part 40 in order to electrically connect these insulation-piercing contacts 30 to one another via the contact part 40. An electrical connection of a first electrical conductor 2 to a second electrical conductor 2 can therefore be realised via the contact part 40. This electrical connection can then be easily disconnected in that the actuating part 50 moves into the release position and the contact portion 35 is therefore electrically disconnected from the contact part 40.
[0064] The contact part 40 can be arranged in different ways in the terminal 1. As can be seen in
[0065] A recess (i.e. clearance) 14, which the terminal 1 can optionally have, can furthermore be seen in
[0066] The actuating part 50 can be arranged such that a rotational movement of the actuating part 50 in is an angular range of 60 to 120°, preferably through 90°, moves the insulation-piercing contact 30 from the release position into the contacting position, or from the contacting position into the release position. For easy actuation of the actuating part 50, this can have a lever portion 51. In the contacting position, the lever portion 51 then preferably extends parallel to the conductor insertion direction and preferably adjacent to the conductor insertion area 13. The actuating part 50 can serve to delimit the conductor insertion area 13 when the insulation-piercing contact 30 is moved into the contacting position. In the contacting position, the conductor insertion area 13 can then be delimited in particular by the housing 10 and the actuating lever 50, for example by the lever portion 51 thereof.
[0067] As can be seen in particular in
[0068] The present invention is not restricted to the preferred embodiment above so long as it is comprised by the subject matter of the following claims.