CN101617442A - With electric switchgear and be used for the splicing ear of electric switchgear - Google Patents

With electric switchgear and be used for the splicing ear of electric switchgear Download PDF

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Publication number
CN101617442A
CN101617442A CN200780040289A CN200780040289A CN101617442A CN 101617442 A CN101617442 A CN 101617442A CN 200780040289 A CN200780040289 A CN 200780040289A CN 200780040289 A CN200780040289 A CN 200780040289A CN 101617442 A CN101617442 A CN 101617442A
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CN
China
Prior art keywords
terminal
cover piece
pinching screw
pinching
arm
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CN200780040289A
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Chinese (zh)
Inventor
拉尔夫·韦伯
克劳斯-彼得·埃佩
格尔德·克雷伯斯
格哈德·齐格勒
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ABB Patent GmbH
ABB AB
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ABB AB
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Publication of CN101617442A publication Critical patent/CN101617442A/en
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Abstract

The present invention relates to a kind ofly with electric switchgear (1), it comprises: housing (8), this housing comprise front (3), fastening and the leptoprosopy (6) between described front and fastening; And splicing ear (10), this splicing ear remains near the terminal accommodating chamber (10) leptoprosopy (6) of being positioned at of housing (8), this splicing ear comprise can (3) be touched from the front pinching screw (24), this pinching screw comprises manipulatable end (26) and the pinching end (30) relative with manipulatable end (26), this splicing ear also comprises terminal bodies (12), this terminal bodies comprises at least one terminal area (20), bus-bar and/or bonding conductor can be pressed onto on the busbar (36) by pinching screw (24) in this terminal area, wherein, described terminal bodies (12) can be by being arranged in leptoprosopy (6) first shell nozzle (91) of wall touch, and described at least one terminal area (20) can be hidden by terminal cover piece (60), this terminal cover piece is connected with the pinching end (30) of pinching screw (24) and therefore can be driven along the direction of motion (50) of pinching screw (24), also can prevent hiding contiguously terminal area when busbar (36) is gone up even the size of this terminal cover piece makes it be tightened at pinching screw (24).Described terminal cover piece (60) is rotatably riveted with described pinching screw (24).

Description

With electric switchgear and be used for the splicing ear of electric switchgear
Technical field
The present invention relates to a kind of electric switchgear of using as described in the preamble according to claim 1, it comprises: housing, this housing comprise front, fastening and the leptoprosopy between described front and fastening; And splicing ear, this splicing ear remains near the terminal accommodating chamber the described leptoprosopy of being positioned at of housing, this splicing ear comprises can be from the pinching screw that touches previously, this pinching screw comprises manipulatable end and the pinching end relative with manipulatable end, this splicing ear also comprises terminal bodies, this terminal bodies comprises at least one terminal area, bus-bar and/or bonding conductor can be forced on the busbar by pinching screw in this terminal area, wherein, described terminal bodies can be by being arranged in leptoprosopy first shell nozzle of wall touched, described at least one terminal area can be hidden by the terminal cover piece, this terminal cover piece is connected with the pinching end of pinching screw and therefore can be driven along the direction of motion of pinching screw, even the size of this terminal cover piece makes that also can hide described terminal area when pinching screw is tightened on the busbar is touched to prevent described terminal area.
The invention still further relates to a kind of splicing ear that is used to be installed in in the terminal accommodating chamber of electric switchgear as described in the preamble according to claim 12.
Background technology
EP 809 325 B1 disclose a kind of electric switchgear of using that has two chambers terminal.Here, commercial general headless screw is by the cylindrical part of precession terminal bodies.This screw this fully by the precession terminal bodies in, thereby its hides the lead-in wire opening in housing.Therefore, though incorrect link no longer may take place, unexpectedly the contact terminal opening is contingent, and this can cause danger.
DE 44 36 780 C2 show a kind of electric switchgear of using that has L shaped terminal cover piece, and this terminal cover piece embeds with also being stuck in this slit to fixed-site in the slit on the leptoprosopy of electric switchgear.This needs high manufacturing cost and hard when assembling.
DE ... (Mp.-Nr.07/633) show this type of that have L shaped terminal cover piece and use electric switchgear, this terminal cover piece can be clipped on the cannelure of the pinching end that is positioned at pinching screw or the like.In order on the pinching end of pinching screw, to form essential cannelure, the biconvex shoulder need be set, on pinching end therefore according to DE ... the cost of solution higher relatively.
Summary of the invention
The object of the present invention is to provide such with electric switchgear and such splicing ear that is used for electric switchgear, wherein, fixing can simply and inexpensively form of terminal cover piece on pinching screw.
About the purpose with electric switchgear is being achieved with electric switchgear by the feature in a kind of characteristic with claim 1.
About the purpose of splicing ear is that splicing ear by the feature in the characteristic with claim 12 is achieved.
According to the present invention, terminal cover piece and pinching screw are rotatably riveted.Particularly advantageous is that this terminal cover piece rotatably is riveted on the pinching screw at the pinching end place of pinching screw.This has such advantage, a rivet pin only need be installed as additional function element on pinching screw that is:.Therefore, pinching screw has very simply rivets geometry, thereby pinching screw can simply and inexpensively be made.By rotatable riveted joint the terminal cover piece being fixed on the rivet pin also is very simple, quick thereby can implement an inexpensively operation.Therefore, especially can be on very short automated manufacturing machine of manufacturing cycle, be that so-called high speed is made on the automaton as the assembly manufacturing clamping device with electric switchgear of the present invention, this assembly can be removed from this manufacturing automaton to free fall, and can be assembled in the automatic assembling machine with very high speed operation equally at another.The special advantage of rotatable riveted joint is: when clamping bonding conductor, screw is not to rotate peelling off on the end conductor of insulating barrier.This terminal cover piece can be pressed on the end conductor and be maintained fixed along the circumference of pinching screw there by pinching screw, and pinching screw itself can continue to be tightened.Therefore, can avoid removing material,, will remove by generating material if the pinching end of pinching screw rotates on end conductor from end conductor.Another advantage of rotatable riveted joint is: the terminal cover piece also forever is connected with the pinching end of pinching screw.
According to a kind of particularly advantageous execution mode, the terminal cover piece is L shaped, wherein, the pinching end of the first arm and pinching screw is rotatably riveted, and is touched to prevent the first terminal zone and hide the first terminal zone from the first arm at least towards second arm of front direction.Therefore the first arm of terminal cover piece is used as simultaneously and compresses the compressing tablet of conductor, thereby independent parts needn't be set, thereby has further simplified apparatus structure.
According to another kind of execution mode, second arm of terminal cover piece is narrower than the shell nozzle that the terminal area with the covering of terminal cover piece matches, wherein, this shell nozzle is very not little by the part that the terminal cover piece hides, thereby has prevented to pass the device feature of this part contact electrification.Particularly advantageously be to have that the bonding conductor of big conductors cross or its end conductor surround with the heart yearn cable pot-head and then connection lead with big cross section is clamped in the splicing ear.Thus, need the opening of terminal area and the shell nozzle that matches with terminal area be set with corresponding cross section size.So, be easy to take place following situation: the size of shell nozzle makes people's finger or standard testing refer to and can and may touch the live part of device inside or touch terminal by this shell nozzle that standard testing refers to be generally used for checking the touch-safe of electric device.But this should be to take place with electric switchgear for what be subjected to anti-contact protection.Therefore, known terminal cover piece hides shell nozzle fully in the zone of terminal area.For big shell nozzle, need corresponding big terminal cover piece.By the design of terminal cover piece according to the present invention, make the terminal cover piece can size littler, make and be more prone to and then economical with materials.However still has anti-touch-safe.
According to a kind of particularly advantageous execution mode, the terminal cover piece is made of plastics.By pinching screw since the riveted joint process and by upsetting or crimping the clamping on rivet pin bring in and guarantee electrically contacting of pinching screw and bonding conductor.
For the applicable cases of not expecting that end conductor contacts with plastics, according to the particularly advantageous execution mode of another kind, the terminal cover piece can rotatably be riveted on the rivet pin of stretching out on the pinching end of pinching screw by means of the metal riveting sheet.
The execution mode favourable according to another kind, the terminal cover piece is made of metal, wherein, at least the second arm at least outwardly and the one side that can be touched cover with insulating material.
According to a kind of favourable execution mode, the working of plastics plug-in mounting that covering insulating material can be by will surrounding second arm or be clamped on second arm is realized.
The execution mode favourable according to another kind, covering insulating material can be contracted on second arm by the shrink sleeve that will insulate and realize.
The execution mode favourable according to another kind, covering insulating material can be realized in the following way: at the spraying plating plastic layer outwardly and on the one side that can be touched of second arm, perhaps second arm is sealed with plastic injection-moulded at least.
The execution mode favourable according to another kind, pinching screw can be headless screws.Because the terminal cover piece is installed on the pinching screw, so the design of the manipulatable end of pinching screw is unessential for the present invention.Certainly, use the advantage of headless screw to be, this headless screw can very deeply and in the precession terminal bodies fully, this headless screw be available as very inexpensive mass-produced part in addition.
Here, terminal cover piece of the present invention can be made as mass-produced part by cost very cheaply, and rotatably rivets with pinching screw on the pinching end at pinching screw when making with electric switchgear.Be inserted in the terminal when connecting lead, when terminal is closed then, just when pinching screw is threaded into, terminal cover piece of the present invention hide at least terminal from the pinching end of pinching screw part towards the manipulatable end direction, thereby can avoid referring to unexpectedly contact in the pinching end of pinching screw and the conducting terminal part between the manipulatable end by finger or test.
According to a kind of particularly advantageous execution mode, has terminal bodies with electric switchgear, this terminal bodies comprises at least two terminal area that are used to connect bus-bar and/or bonding conductor, these terminal area can arrive via the wall portion of first and second shell nozzles from the contiguous front of leptoprosopy, be provided with before and after for the front and be spaced from each other by the busbar that is embedded in the terminal bodies, wherein, the first terminal zone between busbar and front can be hidden by the terminal cover piece, this terminal cover piece is connected with the pinching end of pinching screw and therefore can be driven along the direction of motion of pinching screw, even the size of this terminal cover piece makes it also can hide the first terminal zone when pinching screw is tightened on the busbar and is touched to prevent the first terminal zone, wherein, terminal cover piece and pinching screw are rotatably riveted.
Here, the first terminal zone of this preferred implementation is generally used for the connection of connecting line, and second terminal area is used for being connected of brace and bus-bar.When bus-bar is connected second terminal area, may unexpectedly contact second terminal area in fact hardly.By rotatably being riveted on the pinching screw according to the present invention and can having avoided unexpected contact the first terminal zone by the terminal cover piece of this pinching screw drive.
Description of drawings
By the accompanying drawing that embodiments of the invention are shown, explain and describe the present invention and other favourable design and improvement project of the present invention.
Fig. 1 schematically shows the outward appearance with electric switchgear of the present invention;
Fig. 2 schematically shows the cutaway view of first execution mode of splicing ear of the present invention;
Fig. 3 schematically shows the rotatably zoomed-in view of the pinching screw of the terminal cover piece of riveted joint that has according to Fig. 2;
Fig. 4 shows another embodiment of the present invention, and in this embodiment, the face that the terminal cover piece is made of metal and can contacts from the outside under installment state covers with insulating material;
Fig. 5 shows another embodiment of the present invention, and in this embodiment, the terminal cover piece is made of plastics and rotatably rivets by compressing tablet and pinching screw;
Fig. 6 shows another embodiment of the present invention, and in this embodiment, the terminal cover piece is made of metal and uses the pick-and-place components of being made by insulating material to cover; And
Fig. 7 shows the design modification according to the pick-and-place components that is connected with the terminal cover piece of Fig. 6.
In the accompanying drawing, identical or act on identical parts or element is always represented with identical Reference numeral, even their some changes a little in different execution mode modification.
Embodiment
Fig. 1 schematically shows the partial view with electric switchgear 1 that has insulation shell 8, this insulation shell comprises forward front 2, the front 3 after leaning on, relative with described front fastening 4, connect forward front and lean on after the front preceding leptoprosopy 5, be connected front 3 after leaning on and fastening 4 back leptoprosopy 6, and two wide 7, wherein in Fig. 1, can only see one wide.
With electric switchgear for example can be line protection switch, failure current protection switch or suchlike device.Inside at insulation shell is provided with live part.
In the zone between the leptoprosopy 6 of front 3 after leaning on and back, at the inside formation terminal accommodating chamber (can't see in Fig. 1) with the housing 8 of electric switchgear, splicing ear 10 remains in this terminal accommodating chamber.This splicing ear is shown specifically in Fig. 2.Splicing ear 10 comprises that front 3 after lean on is by terminal openings 9 palp pinching screws 24 and front terminal zone 20 and back terminal area 21, these terminal area arrange before and after the front is seen one by one and can the procapsid opening 91 and the back casing opening 92 of leptoprosopy 6 touch behind the housing by being arranged in, the connection that procapsid opening and back casing opening are respectively applied for the connection that is connected lead or bus-bar and are used for the brace of bus-bar.
The first procapsid opening 91 roughly has along the rectangular profile of back leptoprosopy 6 longitudinal extensions, is used to connect the connection of lead.The second back casing opening 92 is arranged in 6 one flute profile step portion of back leptoprosopy, has horizontal rectangular profile.This second back casing opening 92 is used for the clamping of bus-bar brace.
As following also will be in further detail as described in, pinching screw 24 is connected with the terminal cover piece, this terminal cover piece is driven by this pinching screw along the direction that vertically moves of pinching screw, and is touched from external lid front end seed cell 20 to prevent front terminal chamber 20.
According to Fig. 1, in the housing of sealing, second arm 66 of this terminal cover piece is appreciable from the outside.This second arm portion ground hides procapsid opening 91, and the not masked areas 93 of procapsid opening 91 is exposed on the right of second arm 66 of terminal cover piece and the left side respectively.
Masked areas 93 is very not narrow, thereby people's finger or standard testing refer to that can not pass shell nozzle 91 by this zone arrives the inside of terminal accommodating chambers and contact for example live part there.
Certainly, the width of the terminal cover piece or second arm 66 also can be designed to procapsid opening 91 is hidden fully.
Equally, back casing opening 92 is also very narrow, thereby has prevented that effectively people's finger or test from referring to extend through.
Therefore, switching device of the present invention is designed to anti-contact generally.
Fig. 2 shows a kind of execution mode of splicing ear 10 of the present invention with schematic sectional view.This splicing ear comprises terminal bodies 12, and this terminal bodies can be cylindrical or have box-like outline and there is terminal area inside that this terminal area is used to hold bonding conductor to be clamped.This terminal area in a side relative with terminal openings 9 by limited part 17 sealings.
In the first half of the close terminal openings 9 of terminal bodies 12, this terminal bodies has internal thread 23, and the pinching screw 24 with corresponding external screw thread 25 can be by in this internal thread of precession, and can be along the direction spinning in and out of direction arrow 50.
Pinching screw 24 has manipulatable end 26 and the pinching end 30 relative with this manipulatable end, manipulatable end comprises and is used for the groove 28 that engages with manipulate tools (for example screwdriver), by pinching end, bonding conductor (not shown here) can be clamped on the busbar 36 by pressure.
Here, groove 28 can have and is used for and coefficient all possible known form of various known manipulate tools or type exterior feature, cross recess for example, and rice word groove, the plum blossom grooved, but also can use the combination of different shaped exterior feature.
In the execution mode shown here, busbar 36 in housing fixed in position in terminal area.It is divided into front terminal zone 20 between busbar 36 and terminal openings 9 with terminal area, and at busbar 36 and limit the back terminal area 21 between the limited part 17 on the border of fastening 4 direction of terminal bodies 12.
Terminal bodies 12 can vertically move abreast with leptoprosopy wall portion in the terminal accommodating chamber.By screwing in pinching screw, at first the pinching end of terminal screw is pressed on the conductor that inserts the front terminal zone and this conductor is clamped on the busbar.When pinching screw 24 continues to screw in, this pinching screw is supported on the busbar 36 to a certain extent, terminal bodies 12 is upwards towards the direction motion of front, till the bus-bars (not shown here) after to the last limited part 17 will finally be inserted in the terminal area 21 are pressed on the busbar 36.
Busbar 36 is the exit 37 that forms bonding conductor towards the end of enclosure interior, and with other elements and the assembly of electric switchgear, for example circuit breaker or contact are connected with this exit.
The free end of busbar 36 is bent to U-shaped, thus form segmental arc 361 and be attached thereto and with busbar 36 arm 362 of extension terminal area 21 in abreast.At this moment, the brace of bus-bar is inserted in the terminal area 21 of back, this brace is just surrounded by arm 362 and limited part 17 in both sides, and has guaranteed that by tightening pinching screw 24 favorable mechanical contacts and electrically contacts.
In the execution mode shown here, pinching screw 24 is headless screws, is also referred to as counter-sunk screw.This has such advantage, promptly can fully screw in the terminal bodies 12, and not have head outstanding outwardly.Certainly, splicing ear of the present invention also can comprise cap screw.
As shown in Figure 2, if the pinching end 30 of pinching screw 24 is tightened on the busbar 36, do not insert at bonding conductor under the situation in front terminal zone 20, if do not take other measure, so just can pass the bar portion that procapsid opening 91 touches pinching screw 24, the contact that meets accident.This also is specially adapted to the device of other types, and these devices have the terminal openings of big cross section in order to connect the conductor with big conductors cross.
In order to get rid of these dangerous matter sources, terminal cover piece 60 rotatably is riveted on the pinching end 30 of pinching screw 24.Fig. 3 has the rotatably terminal cover piece 60 of riveted joint with the pinching end that zoomed-in view shows pinching screw 24.
Terminal cover piece 60 has roughly L shaped, and rotatably rivets with its short the first arm 62 and the rivet pin 31 of stretching out on the pinching end 30 of pinching screw.Rotatable being riveted on the principle is known and can various forms realizes.
In the execution mode shown here, the first arm has through hole 34, and rivet pin 31 is passed this through hole, is provided with counterbore 35 in the zone of through hole 34.The size of design counterbore 35 makes it hold crimping or jumping-up portion 33 that riveted joint forms the time on the free end of rivet pin 31, so this crimping or jumping-up portion can be not downwards exceed the first arm 62 towards the direction of bonding conductor to be clamped.This has such advantage, promptly can not produce wearing and tearing on bonding conductor when compressing bonding conductor, but this bonding conductor is compressed evenly in large area.
Here, riveted joint can for example be carried out apart from controlled way, riveted flange 33 with the contact area of the first arm 62 in leave certain clearance, so pinching screw 24 can be with respect to 60 rotations of terminal cover piece.
Because rotatable riveted joint connects, terminal cover piece 60 is driven in precession with when screwing out by this pinching screw along the direction of motion 50 of pinching screw 24.
Second arm 66 of sheet roughly vertically extends with the first arm 62 of terminal cover piece 60.Sheet second arm 66 part of the pinching end that is positioned at pinching screw 24 30 tops in shell nozzle 91 1 sides covering front terminal zone 20 in the past is touched to prevent this part.
The splicing ear 10 that has terminal cover piece 60 of the present invention is installed in the terminal accommodating chamber, makes second arm 66 of sheet of terminal cover piece 60 extend abreast near the inboard of housing wall and the back trend of leptoprosopy 6 in the zone of procapsid opening 91.Therefore, avoided owing to damaging the terminal cover piece with the misoperation of electric switchgear.
Terminal cover piece 60 by insulating material for example plastics make.In the time of on terminal cover piece 60 being pressed on bonding conductor (not illustrating) here, form electrically contacting between bonding conductor and the pinching screw at riveted flange 33 places.In addition, bonding conductor also can partly contact with the plastics of the first arm 62.
Fig. 5 shows a kind of alternate embodiments of the rotatable riveted joint of plastics terminal cover piece 60 and pinching screw 24.When not wishing that bonding conductor contacts with the first arm 62 of terminal cover piece, in the time of plastic arm 62 for example should not take place being pressed on situation on the bonding conductor, adopt this execution mode modification.Here, rivet pin 31 is passed the through hole 34 in the first arm 62 of terminal cover piece 60.On the side of the first arm 62 away from pinching end 30 of terminal cover piece 60, metal sheeting 32 is installed, thereby the terminal cover piece is by pinching end 30 riveted joints of this compressing tablet 32 with pinching screw 24.Therefore, guaranteed large-area Metal Contact between pinching screw and the clamped bonding conductor.
Rotatable riveted joint and above-described mode between rivet pin 31 and compressing tablet 32 are similar.At this, on compressing tablet 32, be provided for holding the counterbore of riveted flange 33 with flushing.
Fig. 4 shows another kind of execution mode.At this moment, terminal cover piece 60 is implemented as the angled metal plate.The first arm of this terminal cover piece and the pinching end of pinching screw are rotatably riveted.Here, the first arm 62 of terminal cover piece 60 is similar with top mode with reference to figure 3 descriptions with the rotatable riveted joint of rivet pin.
Cover with insulating material on the one side that the angled metal plate can contact from the outside under installment state, so the angled metal plate has insulating barrier 95 on this face.Here, this insulating barrier for example can be the plastic layer of spraying plating.Therefore the terminal cover piece can be made highly stable and inexpensively.Can see that in Fig. 4 it is narrower than the first arm 62 that the terminal cover piece has second arm 66 of insulating barrier 95 of coating.
Certainly, second arm 66 of terminal cover piece also can sealed with plastic injection-moulded on the two sides or on all faces.
Referring now to Fig. 6.Show with the low-cost and anti-another kind of scheme that designs second arm of metal terminal cover piece contiguously herein.For this reason, U-shaped pick-and-place components 96 is inserted on second arm 66.Therefore, second arm 66 of terminal cover piece 60 for example is maintained in the cover, and this second arm is insulated material at least and covers on its wide.
U-shaped pick-and-place components 96 has two vertical arms 964,965, and these two vertical arms are connected on the transverse arm 963.Design the size of vertical arm 964, make it on the installation site of terminal, hide terminal cover piece 60 second arm 66 contact wide the part that can pass procapsid opening 91 contact from the outside.Therefore, from visual observation, at the image that produces in the electric switchgear corresponding to Fig. 1 of using of the terminal that has the pick-and-place components that comprises that plug-in mounting is good.
Pick-and-place components 96 can be designed to also to cover the leptoprosopy of second arm 66 of terminal cover piece 60.Pick-and-place components also can be designed to not cover leptoprosopy, touches with regard to can or not being difficult to pass procapsid opening 91 from the outside because these leptoprosopy are original.
Pick-and-place components under the plug-in mounting state, inwardly can be designed to have the length identical with wide the arm 964 of covering second arm towards the arm 965 of terminal bodies.But this arm 965 also can be shorter, can shorten into the form of maintenance pawl under extreme case.The major function of this arm 965 is fixing pick-and-place components.
Can be for example pick-and-place components 96 be fixed on second arm 66 in the mode of interference fit.
Also can by chucking pick-and-place components be fixed on second arm as shown in Figure 7.Here, pick-and-place components 961 has the retainer 962 of other form of an inwardly outstanding respectively protrusion or a similar effect on the inboard of two arms 964,965.Second arm 661 of terminal cover piece has groove or through hole 662 on the corresponding position of retainer of other identical with protrusion 962 or function when pick-and-place components plug-in mounting is good form.
When pick-and-place components 961 was carried out plug-in mounting (direction arrow by Fig. 7 left side illustrates), this pick-and-place components just was clamped in groove or the through hole 662.The right of Fig. 7 shows gripping orientation.Therefore, even pick-and-place components opens wide on leptoprosopy, also can prevent to be inserted into pick-and-place components on second arm 661 and slide or move.
Another kind of execution mode shown in the figure useless here is: second arm 66 of terminal cover piece is put the insulation shrink sleeve, and this shrink sleeve for example can for good and all be fixed on the terminal cover piece by the contraction of heating enforcement by known methods.
List of numerals:
1 uses electric switchgear
2 forward fronts
3 fronts after leaning on
4 fastening surfaces
5 front leptoprosopy
6 rear leptoprosopy
7 wide
8 housings
9 terminal openings
10 splicing ears
12 terminal bodies
17 limited parts
20 front terminal zones
21 back terminal area
23 internal threads
24 pinching screws
25 external screw threads
The manipulatable end of 26 pinching screws
28 pilot slot
The pinching end of 30 pinching screws
31 riveted flanges
32 compressing tablets
33 riveted joint jumping-up portions
34 through holes
35 counterbores
36 busbars
361 segmental arcs
The arm of 362 busbars
The exit of 37 busbars
The direction of motion of 50 pinching screws
60 terminal cover pieces
The first arm of 62 terminal cover pieces
The first arm of 621 terminal cover pieces
66 second arms
661 second arms
662 recess
91 procapsid openings
92 back casing openings
93 masked areas not
95 insulating barriers
96 pick-and-place components
961 pick-and-place components
The protuberance of 962 protrusion shapes
963 transverse arms
964 arms
965 arms

Claims (21)

1. one kind with electric switchgear (1), and it comprises: housing (8), this housing comprise front (3), fastening and the leptoprosopy (6) between described front and described fastening; And splicing ear (10), this splicing ear remains in the terminal accommodating chamber of close described leptoprosopy (6) of described housing (8), this splicing ear comprises the pinching screw (24) that can touch from described front (3), this pinching screw comprises manipulatable end (26) and the pinching end (30) relative with described manipulatable end (26), this splicing ear also comprises terminal bodies (12), this terminal bodies comprises at least one terminal area (20), bus-bar and/or bonding conductor can be pressed onto on the busbar (36) by described pinching screw (24) in this terminal area, wherein, described terminal bodies (12) can be by being arranged in described leptoprosopy (6) first shell nozzle (91) of wall touch, described at least one terminal area (20) can be hidden by terminal cover piece (60), this terminal cover piece is connected with the described pinching end (30) of described pinching screw (24) and therefore can be driven along the direction of motion (50) of described pinching screw (24), even the size of this terminal cover piece makes that also hiding described terminal area when described pinching screw (24) is tightened on the described busbar (36) is touched to prevent described terminal area, it is characterized in that described terminal cover piece (60) is rotatably riveted with described pinching screw (24).
2. one kind with electric switchgear (1), and it comprises: housing (8), this housing comprise front (3), fastening and the leptoprosopy (6) between described front and described fastening; And splicing ear (10), this splicing ear remains in the terminal accommodating chamber of close described leptoprosopy (6) of described housing (8), this splicing ear comprises the pinching screw (24) that can touch from described front (3), this pinching screw comprises manipulatable end (26) and the pinching end (30) relative with described manipulatable end (26), this splicing ear also comprises terminal bodies (12), this terminal bodies comprises at least two terminal area (20 that are used to connect bus-bar and/or bonding conductor, 21), described terminal area is via first and second shell nozzles (91,92) the wall portion from the described front of vicinity (3) of described leptoprosopy (6) can arrive, with respect to being provided with before and after described front (3) and being spaced from each other by the busbar (36) that is embedded in the described terminal bodies (12), wherein, described the first terminal zone (20) between described busbar and described front can be hidden by terminal cover piece (60), this terminal cover piece is connected with the described pinching end (30) of described pinching screw (24) and therefore can be driven along the direction of motion (50) of described pinching screw (24), even the size of this terminal cover piece makes that also hiding described the first terminal zone (20) when described pinching screw (24) is tightened on the described busbar (36) is touched to prevent described the first terminal zone (20), it is characterized in that described terminal cover piece (60) is rotatably riveted with described pinching screw (24).
3. one of claim is described with electric switchgear (1) as described above, it is characterized in that, described terminal cover piece (60) has L shaped, wherein, the described pinching end of the first arm (62) and described pinching screw (24) is rotatably riveted, and is touched to prevent described the first terminal zone (20) and hide described the first terminal zone (20) at least from second arm (66) that described the first arm begins (3) direction towards the front.
4. as claimed in claim 3 with electric switchgear (1), it is characterized in that, second arm (62) of described terminal cover piece (60) is narrower than the shell nozzle that the terminal area with described terminal cover piece covering matches, wherein, the part that do not hidden by described terminal cover piece of this shell nozzle is little as to be enough to prevent device feature by this part contact electrification.
5. as claimed in claim 3 with electric switchgear (1), it is characterized in that described terminal cover piece is made of plastics.
6. as claimed in claim 5 with electric switchgear (1), it is characterized in that described terminal cover piece rotatably is riveted on the rivet pin of stretching out on the described pinching end (30) of described pinching screw (24) by means of the metal riveting sheet.
7. as claimed in claim 3 with electric switchgear (1), it is characterized in that described terminal cover piece is made of metal, wherein, described at least second arm (66) at least outwardly and the one side that can be touched cover with insulating material.
8. as claimed in claim 7 with electric switchgear (1), it is characterized in that, surround the working of plastics plug-in mounting of described second arm or be clamped on described second arm (66).
9. as claimed in claim 7 with electric switchgear (1), it is characterized in that the shrink sleeve pyrocondensation is on described second arm (66).
10. as claimed in claim 7 with electric switchgear (1), it is characterized in that at the spraying plating plastic layer outwardly and on the one side that can be touched of described second arm, perhaps described second arm is sealed with plastic injection-moulded at least.
11. one of claim is described with electric switchgear (1) as described above, it is characterized in that described pinching screw (24) is a headless screw.
12. be used for being installed in the splicing ear (10) of the terminal spatial accommodation of using electric switchgear (1) that comprises housing (8), this splicing ear (10) comprises the pinching screw (24) of have manipulatable end (26) and the pinching end (30) relative with described manipulatable end (26), also comprise terminal bodies (12), in this terminal bodies, form at least one terminal area, bus-bar and/or bonding conductor can be pressed onto on the busbar (36) by described pinching screw (24) in this terminal area, wherein, described terminal area can be hidden by terminal cover piece (60), this terminal cover piece is connected with the pinching end (30) of described pinching screw (24) and therefore can be driven along the direction of motion (50) of pinching screw (24), even the size of this terminal cover piece makes that also hiding described terminal area when described pinching screw (24) is tightened on the described busbar (36) is touched to prevent described terminal area, it is characterized in that described end gives cover piece (60) and rotatably rivets with described pinching screw (24).
13. splicing ear as claimed in claim 12 (10), this splicing ear comprises terminal bodies (12), in this terminal bodies, form at least two terminal area (20 that are used to connect bus-bar and/or bonding conductor, 21), described terminal area is with respect to being provided with before and after the direction of motion (50) of described pinching screw (24) and being spaced from each other by the busbar (36) that is embedded in the described terminal bodies (12), wherein, the first terminal zone (20) that is positioned between the pinching end (30) of described busbar (36) and described pinching screw (24) can be hidden by terminal cover piece (60), this terminal cover piece is connected with the pinching end (30) of described pinching screw (24) and therefore can drives along the direction of motion (50) of described pinching screw (24), even the size of this terminal cover piece makes that also hiding described the first terminal zone (20) when described pinching screw (24) is tightened on the described busbar (36) is touched to prevent described the first terminal zone (20), it is characterized in that described terminal cover piece (60) is rotatably riveted with described pinching screw (24).
14. as claim 12 or 13 described splicing ears (10), it is characterized in that, described terminal cover piece (60) has L shaped, wherein, the described pinching end of the first arm (62) and described pinching screw (24) is rotatably riveted, and hides described the first terminal zone (20) at least and prevents that described the first terminal zone (20) is touched and begin second arm (66) towards the front (3) of described housing direction from described the first arm on the installation site.
15. splicing ear as claimed in claim 14 (10), it is characterized in that, second arm (62) ratio of described terminal cover piece (60) is narrower with the shell nozzle that the terminal area that is hidden by described terminal cover piece on the installation site matches, wherein, the part that do not hidden by described terminal cover piece of this shell nozzle is little as to be enough to prevent to pass the device feature of this part contact electrification.
16., it is characterized in that described terminal cover piece is made of plastics as claim 12 or 13 described splicing ears (10).
17. splicing ear as claimed in claim 16 (10) is characterized in that, described terminal cover piece rotatably is riveted on the rivet pin of stretching out on the described pinching end (30) of described pinching screw (24) by means of the metal riveting sheet.
18. splicing ear as claimed in claim 16 (10) is characterized in that, described terminal cover piece is made of metal, wherein, described at least second arm (66) at least outwardly and the one side that on the installation site, can be touched cover with insulating material.
19. splicing ear as claimed in claim 18 (10) is characterized in that, surrounds the working of plastics plug-in mounting of described second arm or is clamped on described second arm (66).
20. splicing ear as claimed in claim 18 (10) is characterized in that, the shrink sleeve pyrocondensation is on described second arm (66).
21. splicing ear as claimed in claim 18 (10) is characterized in that, at the spraying plating plastic layer outwardly and on the one side that can be touched of described second arm, perhaps described second arm is sealed with plastic injection-moulded at least.
CN200780040289A 2006-10-28 2007-10-26 With electric switchgear and be used for the splicing ear of electric switchgear Pending CN101617442A (en)

Applications Claiming Priority (3)

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DE102006050932.3 2006-10-28
DE102006050932 2006-10-28
DE102007041650.6 2007-09-03

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CN200780040289A Pending CN101617442A (en) 2006-10-28 2007-10-26 With electric switchgear and be used for the splicing ear of electric switchgear

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CN105321683A (en) * 2015-10-16 2016-02-10 苏州腾冉电气设备股份有限公司 Lateral part clamping structure for outgoing cable of transformer
CN108429020A (en) * 2017-04-19 2018-08-21 深圳市富兴易翔机电设备有限公司 Forceful electric power single-stage connector
CN115295970A (en) * 2022-10-09 2022-11-04 宁德新能源科技有限公司 Electrochemical device and electric equipment

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CN102544828B (en) * 2012-02-08 2014-04-30 上海航天科工电器研究院有限公司 Anti-extrusion connector wiring terminal
CN202816824U (en) 2012-09-25 2013-03-20 上海诺雅克电气有限公司 Circuit breaker
IT201700015793A1 (en) * 2017-02-14 2018-08-14 Sauro S R L CONNECTOR FOR PRINTED CIRCUIT BOARDS

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DE3629796C1 (en) * 1986-09-02 1987-12-10 Phoenix Elekt Electrical series terminal arrangement
JP3156540B2 (en) * 1995-04-11 2001-04-16 富士電機株式会社 Terminal equipment for electrical equipment
FR2795560B1 (en) * 1999-06-23 2003-04-04 Entrelec Sa WIRE CLAMP PROVIDED WITH A TOUCH PROTECTION DEVICE
FR2806215B1 (en) * 2000-03-10 2004-02-06 Schneider Electric Ind Sa TERMINAL FOR CONNECTING CONDUCTORS TO AN ELECTRICAL APPARATUS

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Publication number Priority date Publication date Assignee Title
CN105321683A (en) * 2015-10-16 2016-02-10 苏州腾冉电气设备股份有限公司 Lateral part clamping structure for outgoing cable of transformer
CN108429020A (en) * 2017-04-19 2018-08-21 深圳市富兴易翔机电设备有限公司 Forceful electric power single-stage connector
CN115295970A (en) * 2022-10-09 2022-11-04 宁德新能源科技有限公司 Electrochemical device and electric equipment

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CN101170015B (en) 2013-06-19

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