CN114649715A - Release fork for actuating a spring of a push-in terminal - Google Patents

Release fork for actuating a spring of a push-in terminal Download PDF

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Publication number
CN114649715A
CN114649715A CN202111553334.8A CN202111553334A CN114649715A CN 114649715 A CN114649715 A CN 114649715A CN 202111553334 A CN202111553334 A CN 202111553334A CN 114649715 A CN114649715 A CN 114649715A
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CN
China
Prior art keywords
electrical
release
tines
electrical connectors
extension
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.)
Pending
Application number
CN202111553334.8A
Other languages
Chinese (zh)
Inventor
文森特·帕尼尔
乔治·雷斯塔·德洛索亚
史蒂芬·博维斯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Schweiz AG
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ABB Schweiz AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ABB Schweiz AG filed Critical ABB Schweiz AG
Publication of CN114649715A publication Critical patent/CN114649715A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5844—Electric connections to or between contacts; Terminals making use of wire-gripping clips or springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
    • H01R13/6335—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only comprising a handle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • H01H71/082—Connections between juxtaposed circuit breakers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
    • H01R13/635—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only by mechanical pressure, e.g. spring force
    • 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
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/4837—Single arrangement activating multiple springs
    • 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
    • H01R9/2458—Electrical interconnections between terminal blocks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/14—Terminal arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/08—Short-circuiting members for bridging contacts in a counterpart
    • 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
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/484—Spring housing details
    • H01R4/4842—Spring housing details the spring housing being provided with a single opening for insertion of a spring-activating tool
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/26—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for engaging or disengaging the two parts of a coupling device

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

Embodiments of the present disclosure relate to a release fork (1) for actuating a spring of a push-in terminal, the release fork (1) comprising a handle (5) and a plurality of tines (7) linked with and extending from the handle (5), each tine (7) extending according to a corresponding direction of extension (9) and comprising an end portion (11) and a body portion (13) linking the end portion (11) to the handle (5), the end portion (11) having a reduced cross-section along the direction of extension (9) by moving away from the body portion (13), and the body portion (13) presenting two opposing and parallel mating surfaces (15), the two opposing and parallel mating surfaces (15) extending parallel to the direction of extension (9) and defining a constant thickness of the body portion (13).

Description

Release fork for actuating a spring of a push-in terminal
Technical Field
The present invention relates to a release fork for actuating a spring of a push-in terminal for disassembling a connecting device inserted in said push-in terminal.
Background
It is known to use electrical devices such as contactors or circuit breakers provided with push-in terminals. Such a terminal is satisfactory because the electrical connector in one part can be inserted and held in place due to the form of the spring of the terminal acting as a fork.
To disconnect the electrical connector, a screwdriver is required to move the spring so that the electrical connector is released. For this purpose, each terminal has an actuation hole that provides access to a spring designed for a screwdriver.
This arrangement enables easy insertion and extraction of the electrical connector. However, this may require a long time to insert or extract a plurality of electrical connectors, because each electrical connector should be inserted or extracted at once.
Therefore, a quick insertion and extraction system is required that actuates several electrical connectors. This is particularly true for three-phase electrical equipment, as each connection requires the insertion of three electrical connectors.
The present invention aims to address all or some of the above disadvantages.
Disclosure of Invention
To this end, the invention relates to a release fork for actuating a spring of a push-in terminal, the release fork comprising a handle and a plurality of tines linked to and extending from the handle, each tine extending according to a corresponding direction of extension and comprising an end portion and a body portion linking the end portion to the handle, the end portion having a decreasing cross-section along the direction of extension by moving away from the body portion, and the body portion presenting two opposite and parallel mating surfaces extending parallel to the direction of extension and defining a constant thickness of the body portion.
The release tines are capable of actuating multiple push-in terminals simultaneously. For equivalent results, multiple screwdrivers are required. Since it is difficult to hold a plurality of screwdrivers by hand, the release fork becomes an important tool for releasing a plurality of inserted conductors in one operation.
An end portion having an increasing cross-section in the direction of the body portion facilitates insertion of the tines into the actuation aperture of the push-in terminal. When fully inserted, the spring of the push-in terminal releases the inserted conductor.
The two mating surfaces of the body portion extending in a parallel manner allow the release fork to be blocked when inserted. In fact, it maximizes the friction with the spring and the actuation hole wall.
According to one aspect of the invention, the tines extend in the same plane, referred to as the main plane of extension.
According to one aspect of the invention, for each tine, the end portion presents a contact surface that is inclined relative to the continuous mating surface of the body portion.
This arrangement enables each tine to be smoothly inserted into the corresponding actuation hole. According to one aspect of the invention, the contact surfaces correspond to the beveled or chamfered ends of the tines. In particular, each tine is a rod having a rectangular or square base presenting the said beveled or chamfered end at its free end.
According to one aspect of the invention, the directions of extension of the tines are parallel, and at least one tine is shorter than the longest tine(s) depending on the direction of extension.
In other words, the tines extend from the handle in a parallel manner, and at least one of the tines is shorter, i.e. extends less than the other tines depending on the direction of extension.
The fact that one or more tines are short facilitates insertion of the release fork into a corresponding actuation hole of the push-in terminal. In this way, there is less resistance when the user pushes the release fork in the actuation hole. The insertion force is distributed along the insertion path. This does not require a strong push at the beginning of insertion.
According to one aspect of the invention, the plurality of tines is comprised of three tines disposed on a lateral side of the handle and laterally aligned with the direction of extension, a middle tine of the three tines being shorter than the other two tines.
A three prong release fork with a shorter intermediate tine is a good compromise for easy and reliable extraction of the conductor. Positioning relative to the actuation aperture is easy due to the relatively small number of tines. The difference in length of the middle tine distributes the insertion force so that the user does not press the handle severely.
According to one aspect of the invention, the release fork has a hole for inserting a tool, such as a screwdriver, said hole extending transversely to the direction of extension of the tines.
The invention also relates to a release assembly comprising two release prongs as detailed above and a three-phase connection device comprising an alignment of six electrical connectors extending in parallel, each electrical connector of a first set of three consecutive electrical connectors being electrically linked to a corresponding electrical connector of a different second set of three consecutive electrical connectors.
Three-phase connection devices are designed to electrically connect the three phases of two electrical apparatuses as contactors or circuit breakers positioned side by side. Thus, starting from one side of the three-phase connection device, the first three electrical connectors constitute a first group and the last three electrical connectors constitute a second group.
The release assembly thus comprises three complementary means: a three-phase connection device and two release prongs inserted into corresponding actuation holes to enable a single user to easily disassemble the three-phase connection device.
Since each release fork remains positioned when inserted into the actuation hole, the user can easily position the release forks one after the other and then remove the three-phase connection device.
According to one aspect of the invention, each push-in terminal comprises an actuation hole designed to access the spring from the outside with a dedicated tool and a connector opening designed to receive an electrical connector.
The electrical connector includes conductive ends in one portion that are inserted without a tool being inserted into the actuation holes. The insertion is sufficient to reach the end position. In fact, each spring is configured to act as a fork to easily accept insertion but prevent withdrawal.
The gap between each successive electrical connector of the same set is constant and corresponds to the gap between two successive tines of the release fork.
According to one aspect of the invention, each release fork includes indicia for positioning along complementary indicia of the three-phase connection device to align each prong of the two release forks with six electrical connectors.
In other words, the two release prongs form an alignment extending parallel to the alignment of the six electrical connectors. The indicia and complementary indicia of the release fork are designed to orient the contact surface of the release fork opposite the electrical connector.
This arrangement allows to avoid erroneous connection of the tines when the contact surface cooperates with the spring.
According to one aspect of the invention, the marks each comprise at least one triangle, the angles of the triangles being designed to align with corresponding angles of the complementary marks.
Thus, each triangle of a marker is positioned in a mirror image to the complementary marker. When the angle points to the middle of the same virtual point, the user can achieve precise alignment. Once aligned, the release fork can be easily inserted into the actuation aperture.
According to one aspect of the invention, the release assembly includes a latch mechanism configured to releasably secure two release prongs on a back surface of the three-phase connection device, the back surface being positioned opposite the electrical connector.
This arrangement allows the release assembly to be inserted into the six connector openings as a unit. When a user wants to detach the three-phase connecting device from the six connector openings, the two release prongs may be removed.
According to one aspect of the invention, the latch mechanism includes a first portion that reports on the back surface and a second portion that is included in each release fork. According to one possibility, the first portion comprises a lug and the second portion comprises a slot.
According to one aspect of the invention, the three-phase connection device presents a wiring pattern indicating the electrical connections between the first set of electrical connectors and the second set of electrical connectors.
Preferably, according to a variant of the three-phase connection device, several connection schemes may exist. This arrangement enables easy implementation of several wiring possibilities when the user uses the proposed three-phase connection device according to his needs.
According to an aspect of the present invention, the wiring pattern is located on the back surface of the three-phase connection device. The wiring pattern is located on a portion of the back surface that is not in front of the release fork when mated with the latch mechanism. Therefore, the wiring pattern is always visible to the user.
According to an aspect of the invention, the release assembly further comprises at least one common point connection device provided with two electrical connectors electrically linked, said two electrical connectors extending in a parallel manner according to a gap corresponding to the gap between two consecutive tines.
The release fork can be used to pull out the common point connection as well as the three-phase connection. Thus, the release assembly can accommodate the need for wiring.
The invention also relates to an electrical system comprising a release assembly as detailed above and two or more electrical devices, each electrical device comprising a plurality of push-in terminals, the three-phase connecting arrangement being adapted to connect a first set of electrical connectors to the push-in terminals of one of the electrical devices and a second set of electrical connectors to the push-in terminals of another electrical device.
The three-phase connection device serves as a bridge between two electrical apparatuses, which is advantageous compared to a connection by means of a cable. When a single cable is used between each push-in terminal, one connection operation is required instead of six. Thus, the risk of poor wiring is reduced.
The two electrical devices may be three-phase contactors with push-in terminals to realize a starter, an inverter or a star-delta arrangement.
The different aspects of incompatibility defined above may be combined.
Drawings
The invention will be better understood by means of the detailed description set forth below with reference to the drawings, in which:
FIG. 1 is a perspective view of a release fork;
FIG. 2 is a perspective view of a three-phase connection device;
FIG. 3 is a perspective view of a release assembly including a three-phase connection and two release forks;
FIG. 4 is a perspective view of an electrical system including two electrical devices and a release assembly;
fig. 5 and 6 are perspective views of the electrical system when releasing the three-phase connection device;
FIG. 7 is a perspective view of two common point connection devices connecting two phases;
fig. 8 is a perspective view of three electrical devices with a release assembly.
Detailed Description
In the following detailed description of the above-defined figures, identical elements or elements performing identical functions may retain identical reference numerals in order to simplify understanding of the present invention.
As shown in fig. 1 to 8, there is a release fork 1 for actuating a spring of a push-in terminal 3. The release fork 1 includes a handle 5 and a plurality of tines 7 linked to the handle 5 and extending from the handle 5.
Each prong 7 extends according to a corresponding direction of extension 9 and comprises an end portion 11 and a body portion 13 linking the end portion 11 to the handle 5.
The end portion 11 has a cross section that decreases along the extension direction 9 by moving away from the body portion 13, and the body portion 13 has two opposite and parallel mating surfaces 15 that extend parallel to the extension direction 9 and define a constant thickness of the body portion 13.
The tines 7 extend in the same plane, referred to as the main extension plane 17. For each tine 7, the end portion 11 presents a contact surface 19 that is inclined relative to the continuous mating surface 15 of the body portion 13.
The contact surface 19 corresponds to the beveled or chamfered end of the tine 7. Each tine 7 is a rod having a rectangular or square base presenting a bevelled or chamfered end at its free end.
The directions of extension 9 of the tines 7 are parallel and at least one of the tines 7 is shorter than the longest tine 7, depending on the direction of extension 9. In other words, the tines 7 extend from the handle 5 in a parallel manner, and at least one of the tines 7 is shorter, i.e. extends less than the other tines, depending on the direction of extension 9.
Here, the plurality of tines 7 consists of three tines 7, which are placed on the lateral side 21 of the handle 5 and are laterally aligned with the direction of extension 9, the middle tine 7 of the three tines being shorter than the other two tines 7.
The release fork 1 has a hole 23 for inserting a tool, such as a screwdriver, said hole 23 extending transversely to the direction of extension 9 of the fork tines 7.
As shown in fig. 3, the release assembly 25 includes two release forks 1 and a three-phase connection device 27. As shown in fig. 2, the three-phase connection device 27 comprises an alignment of six electrical connectors 29 extending in parallel.
Each electrical connector 29 of the first set 31 of three consecutive electrical connectors 29 is electrically linked to a corresponding electrical connector 29 of a different second set 33 of three consecutive electrical connectors 29.
As disclosed in fig. 4 to 6, the three-phase connection device 27 is designed to electrically connect the three phases of two electrical apparatuses 35 as contactors or circuit breakers positioned side by side. Thus, starting from one side of the three-phase connecting device 27, the first three electrical connectors 29 constitute a first group 31 and the last three electrical connectors 29 constitute a second group 33.
Each push-in terminal 3 comprises an actuation hole 37 and a connector opening 39, the actuation hole 37 being designed to access the spring from the outside with a special tool, the connector opening 39 being designed to receive the electrical connector 29.
The electrical connector 29 includes conductive terminals in one portion that are inserted without a tool being inserted into the actuation holes 37. The insertion is sufficient to reach the end position. In fact, each spring is configured to act as a fork to easily accept insertion but resist withdrawal.
The gap between each successive electrical connector 29 of the first set 31 and the second set 33 is constant and corresponds to the gap between two successive tines 7 of the release fork 1.
As shown, the push-in terminals 3 are divided into two groups to enable insertion of two conductors at the same point. In this context, the push-in terminal 3 relates to a single position into which an electrical connector 29 can be inserted.
As shown in fig. 1, 2 and 5, each of the release forks 1 comprises a marking 41 for positioning along a complementary marking 43 of the three-phase connection device 27 to align each prong 7 of the two release forks 1 with six electrical connectors 29.
In other words, the two release tines 1 form an alignment extending parallel to the alignment of the six electrical connectors 29. The indicia 41 and complementary indicia 43 of the release fork 1 are designed to orient the contact surface 15 of the release fork 7 opposite the electrical connector 29.
The marks 41 each comprise at least one triangle, wherein the triangle has an angle designed to align with a corresponding angle of the complementary mark 43.
Thus, each triangle of the indicia 41 is positioned in a mirror image to the complementary indicia 43. When the angle points to the middle of the same virtual point, the user can achieve precise alignment. Once aligned, the release fork 1 can be easily inserted into the actuation hole 37.
As shown in fig. 3, the release assembly 25 includes a latch mechanism 45, the latch mechanism 45 being configured to releasably secure two release tines 1 on a back surface 47 of the three-phase connecting device 27, the back surface 47 being positioned opposite the electrical connector 29.
The latch mechanism 45 includes a first portion disposed on the back surface 47 and a second portion included in each release fork 1. The first portion includes a lug and the second portion includes a slot.
As shown in fig. 2 and 3, the three-phase connection device 27 presents a wiring pattern 49 indicating the electrical connection between the electrical connectors 29 of the first group 31 and the electrical connectors 29 of the second group 31. According to a variant of the three-phase connection device 27, several connection schemes may exist.
The wiring pattern 49 is located on the back surface 47 of the three-phase connecting device 27. The wiring pattern 49 is located on a portion of the back surface 47, and the back surface 47 is not in front of the release fork 1 when engaged with the latch mechanism 45. Therefore, the wiring pattern 49 is always visible to the user.
As shown in fig. 7 and 8, the release assembly 25 may further comprise common point connection means 51, each common point connection means 51 being provided with two electrical connectors 29 being electrically linked, the two electrical connectors 29 extending in a parallel manner according to a gap corresponding to the gap between two consecutive tines 7.
The release fork 1 can be used to pull out the common point connection 51 as well as the three-phase connection 27.
As shown in fig. 4, 6 and 8, an electrical system 53 is provided, the electrical system 53 comprising a release assembly 25 and two or more electrical devices 35, each electrical device 35 comprising a plurality of push-in terminals 3, the three-phase connecting means 27 being adapted to connect the electrical connectors 29 of the first group 31 to the push-in terminals 3 of one of the electrical devices 35 and to connect the electrical connectors 29 of the second group 33 to the push-in terminals of another electrical device 35.
The three-phase connection device 27 serves as a bridge between two electrical apparatuses 35, which is advantageous compared to a connection by means of a cable. When a single cable is used between each push-in terminal 3, one connecting operation is required instead of six. Thus, the risk of poor wiring is reduced.
The electrical device 35 may be a three-phase contactor with push-in terminals to realize a starter, an inverter or a star delta arrangement.
In summary, the release fork 1 enables simultaneous actuation of a plurality of push-in terminals 3. For equivalent results, multiple screwdrivers are required. Since it is difficult to hold a plurality of screwdrivers by hand, the release fork 1 becomes an important tool for releasing a plurality of inserted conductors in one operation.
It goes without saying that the invention is not limited to the only embodiment described above by way of example, it encompasses all variants.

Claims (10)

1. A release fork (1) for actuating a spring of a push-in terminal (3), the release fork (1) comprising a handle (5) and a plurality of tines (7) linked with and extending from the handle (5), each tine (7) extending according to a corresponding direction of extension (9), and comprising an end portion (11) and a body portion (13) linking the end portion (11) to the handle (5), the end portion (11) having a reduced cross-section along the extension direction (9) by moving away from the main portion (13), and said body portion (13) presenting two opposite and parallel mating surfaces (15), the two opposite and parallel mating surfaces (15) extend parallel to the direction of extension (9) and define a constant thickness of the main portion (13).
2. The release fork (1) according to claim 1, wherein for each tine (7) the end portion (11) presents a contact surface (19) which is inclined with respect to a continuous mating surface (15) of the body portion (13).
3. The release fork (1) according to any one of claims 1 or 2, wherein the directions of extension (9) of the tines (7) are parallel, and at least one of the tines (7) is shorter than the longest tine (7) depending on the direction of extension (9).
4. The release fork (1) according to claim 3, wherein the plurality of tines (7) consists of three tines (7), the three tines (7) being placed on a lateral side (21) of the handle (5) and being laterally aligned with the direction of extension (9), a middle tine (7) of the three tines (7) being shorter than the other two tines (7).
5. A release assembly (25) comprising two release forks (1) according to any one of claims 1 to 4 and a three-phase connection device (27), the three-phase connection device (27) comprising an alignment of six electrical connectors (29) extending in parallel, each electrical connector (29) of a first group (31) of three consecutive electrical connectors (29) being electrically linked to a corresponding electrical connector (29) of a different second group (33) of three consecutive electrical connectors (29).
6. The release assembly (25) according to claim 5, wherein each of the release forks (1) comprises a marking (41), the marking (41) being intended to be positioned along a complementary marking (43) of the three-phase connecting device (27) such that each prong (7) of two release forks (1) is aligned with the six electrical connectors (29).
7. The release assembly (25) according to any one of claims 5 or 6, comprising a latching mechanism (45) configured for releasably securing two release forks (1) on a back surface (47) of the three-phase connection device (27), the back surface (47) being positioned opposite the electrical connector (29).
8. Release assembly (25) according to any one of claims 5 to 7, wherein the three-phase connection device (27) presents a wiring pattern (49) indicative of the electrical connection between the electrical connectors (29) of the first group (31) and the electrical connectors (29) of the second group (33).
9. Release assembly (25) according to any one of claims 1 to 8, further comprising at least one common point connection device (27), which common point connection device (27) is provided with two electrical connectors (29) that are electrically linked, which two electrical connectors (29) extend in a parallel manner according to a gap corresponding to the gap between two consecutive tines (7).
10. An electrical system (53) comprising a release assembly (25) according to any one of claims 5 to 9 and two or more electrical devices (35), each electrical device (35) comprising a plurality of push-in terminals (3), the three-phase connection arrangement (27) being adapted for connecting the electrical connectors (29) of the first group (31) to the push-in terminals (3) of one of the electrical devices (35) and for connecting the electrical connectors (29) of the second group (33) to the push-in terminals (3) of another electrical device (35).
CN202111553334.8A 2020-12-18 2021-12-17 Release fork for actuating a spring of a push-in terminal Pending CN114649715A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20215285.6 2020-12-18
EP20215285.6A EP4016743B1 (en) 2020-12-18 2020-12-18 Releasing fork for actuating springs of push-in terminals

Publications (1)

Publication Number Publication Date
CN114649715A true CN114649715A (en) 2022-06-21

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Application Number Title Priority Date Filing Date
CN202111553334.8A Pending CN114649715A (en) 2020-12-18 2021-12-17 Release fork for actuating a spring of a push-in terminal

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CN (1) CN114649715A (en)

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CH697113A5 (en) * 2004-02-17 2008-04-30 Rockwell Automation Ag Plug-in type electrical connecting device for connecting terminal clamps of electrical apparatuses, has connection pin introduced through push-to-open pins into electrical connection opening of clamping spring
DE202004018757U1 (en) * 2004-12-04 2006-04-13 Weidmüller Interface GmbH & Co. KG Device for the electrical bridging of two busbars
DE102010015011B4 (en) * 2010-04-14 2018-09-27 Wago Verwaltungsgesellschaft Mbh Jumper for electrical terminals and terminal block assembly with a jumper
EP3176876B1 (en) * 2015-12-02 2019-03-06 Friedrich Göhringer Elektrotechnik GmbH Phase rail
DE202016100323U1 (en) * 2016-01-25 2017-04-28 Wago Verwaltungsgesellschaft Mbh Cross connector for terminal blocks

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EP4016743A1 (en) 2022-06-22

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