CN100442599C - Electrical terminal and electrical protection apparatus containing such a terminal - Google Patents
Electrical terminal and electrical protection apparatus containing such a terminal Download PDFInfo
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- CN100442599C CN100442599C CNB2004100925723A CN200410092572A CN100442599C CN 100442599 C CN100442599 C CN 100442599C CN B2004100925723 A CNB2004100925723 A CN B2004100925723A CN 200410092572 A CN200410092572 A CN 200410092572A CN 100442599 C CN100442599 C CN 100442599C
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- screw
- indicating device
- clamped condition
- bar
- shape
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/36—Conductive members located under tip of screw
- H01R4/363—Conductive members located under tip of screw with intermediate part between tip and conductive member
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- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Breakers (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The present invention relates to an electric connection terminal, including channel (1), bolt (9) for clamping and indicator lever (12). The bolt (9) clamps the cable between a connection strip and the channel or bolt. The lever (12) denotes the clamping quality of the bolt. The lever (12) is cooperated with an opening in a case (C), and can move between a first position indicating the clamping state of the bolt and a second position indicating the non-clamping state of the bolt. The lever is fixed on a flexible piece (11) which can be deformed by the bolt directly when the flexible piece move between a first shape corresponding to the clamping state of the bolt and a second shape corresponding to the non-clamping state of the bolt. The lever (12) includes a first end cooperating with the opening (14) and a second end fixed on the flexible piece (11), so that the deformation of the flexible piece between the first shape and the second shape generates relative movement of the indicator lever between the first and the second positions.
Description
Technical field
The present invention relates to a kind of electric connecting terminals and a kind of electric protective device that comprises such terminal.
Background technology
A kind of electric connecting terminals of prior art comprises: the duct, and this duct forms the framework around opening, and this opening receives the intercell connector of electric device, and the cable that will connect is inserted; Pinching screw, this pinching screw are designed to clamping cables between intercell connector and duct or described screw; And indicating device bar, this indicating device bar is represented the clamping quality of screw, described bar is designed to and is arranged in the opening collaborative work in the housing, and can between the primary importance and the second place, move, in this primary importance, the clamped condition of its indication screw, and in this second place, the not clamped condition of its indication screw.
Sometimes, cable connecting terminal will fluff moving after working long hours.Should loosening make and in electric device, produce big temperature rise.Therefore, advantageously check this phenomenon, tighten this terminal when needing with box lunch.
Known references EP1280238 discloses a kind of binding post of aforesaid kind, and described terminal is equipped with the system that indication clamps quality.But, the structure relative complex of this indicating device is because it also comprises the drive unit of cam and this cam.
Summary of the invention
The present invention has overcome these shortcomings, and has proposed a kind of binding post that indication clamps the system of quality that is equipped with, and there is simple relatively structure in described system.
Therefore, the purpose of this invention is to provide a kind of binding post, it comprises: the duct, and this duct forms the framework around an opening, and this opening receives the intercell connector of electric device, and the cable that will connect is inserted; Pinching screw, this pinching screw are designed to clamping cables between intercell connector and duct or described pinching screw; And indicating device bar, this indicating device bar is represented the clamping quality of pinching screw, described indicating device bar is designed to and is located at the opening collaborative work in the housing, and can not move between the second place of clamped condition at the primary importance of indication pinching screw clamped condition and indication pinching screw, described indicating device bar is fixed on the flexible piece, described flexible piece is in corresponding to first shape of pinching screw clamped condition and the process of not moving between second shape of clamped condition corresponding to pinching screw, can directly be out of shape by pinching screw, described terminal is characterised in that: described bar is fixed on the flexible piece, when described part in corresponding to first shape of screws clamp state and the process of not moving between second shape of clamped condition corresponding to screw, it can directly be out of shape by screw, described bar comprises with first end of described opening collaborative work and is fixed on second end on the described part, like this, flexible piece produces the corresponding sports of indicating device bar between above-mentioned first and second positions in the distortion between first shape and second shape.Flexible piece comprises the latch plate that is arranged between screw and the above-mentioned intercell connector, and described plate can be by screw be out of shape between the convex shape of clamped condition and the flat pattern corresponding to described screws clamp state corresponding to screw.
According to specific embodiments, flexible piece is the compensated part that relaxes.
Preferably, above-mentioned bar is cast with above-mentioned flexible piece.
According to special characteristic, one end of described bar slave plate stretches out, and when plate is in flat position corresponding to the terminal screw clamped condition and described plate form about 90 ° of angles, when latch plate be in corresponding to terminal screw not during the convex position of clamped condition and described plate form about hexagonal angle.
The present invention also provides a kind of binding post, and it comprises: the duct, and this duct forms the framework around an opening, and this opening receives the intercell connector of electric device, and the cable that will connect is inserted; Pinching screw, this pinching screw are designed to clamping cables between intercell connector and duct or described pinching screw; And indicating device bar, this indicating device bar is represented the clamping quality of pinching screw, above-mentioned bar and the recess collaborative work that is arranged in the housing of electric device, like this, described bar is retracted into described recess inside when the indicating device bar is in above-mentioned primary importance, and when being in the second place, described bar from housing, protrudes, described indicating device bar is fixed on the flexible piece, described flexible piece is in corresponding to first shape of pinching screw clamped condition and the process of not moving between second shape of clamped condition corresponding to pinching screw, can directly be out of shape by pinching screw, described terminal is characterised in that: described bar is fixed on the flexible piece, when described part in corresponding to first shape of screws clamp state and the process of not moving between second shape of clamped condition corresponding to screw, it can directly be out of shape by screw, described bar comprises with first end of described opening collaborative work and is fixed on second end on the described part, like this, flexible piece produces the corresponding sports of indicating device bar between above-mentioned first and second positions in the distortion between first shape and second shape.Flexible piece comprises the latch plate that is arranged between screw and the above-mentioned intercell connector, and described plate can be by screw be out of shape between the convex shape of clamped condition and the flat pattern corresponding to described screws clamp state corresponding to screw.
In accordance with a specific feature of the present invention,, bar forms the indicating device comprise two regions of different colours, and according to the clamping of terminal or clamped condition not, in these two zones one or another can move into facing to the opening in the housing.
According to another embodiment of the present invention, terminal comprises: by cutting and the duct that obtains of folded metal bar, so that formation is around the framework of opening, this opening is used to insert the cable that will connect; Pinching screw, this pinching screw are designed to clamping cables between binding post and bottom, duct; Two end branches are used to seal the flexible frame in duct, and under the not clamped condition of screw, these two end branches are separated to few axial spacing, and this axial spacing extends along the direction of motion of screw; Stopper means, this stopper means has been determined the first clamping limit after occupying first spacing when screw begins to clamp, when screw is further tightened, so that when making clamping force increase surpass described first limit, this duct becomes harder, then, when screw loosening, the duct returns back to its original geometric form, described metal aperture road has flexible structure, this flexible structure has dual slope, like this, the axial tension that produces in terminal when clamping increases in ratio first slope part in second slope part more quickly, after clamping the limit above first, to carry out from the conversion of first slope to second slope, described terminal is characterised in that: above-mentioned bar is fixed on the free end of an above-mentioned end branch.
According to another embodiment, flexible piece is cast with intercell connector.
Another feature according to the present invention, terminal comprises locking device, this locking device can make indicating device remain on corresponding to the screw second place of clamped condition not, is in complete clamped condition up to screw.
Another feature according to the present invention; binding post is designed to be arranged in the binding post box of electric protective device; this electric protective device comprises tripping mechanism; described terminal comprises aforementioned feature or their combination, and above-mentioned bar is designed to act on when screw is not clamped to a certain degree on the tripping mechanism of device.
According to another embodiment of the present invention, above-mentioned flexible piece comprises flexible sheets, described comprises bar, described bar is cast with described, described pressurized between screw and crust of the device, like this, tightening of screw makes sheet produce distortion, thereby make the indicating device corresponding sports to the primary importance of indicating the screws clamp state, and described is upwards pushed screw/terminal assemblies by the second place of indicating device not clamped position indication, screw to.
Preferably, sheet is not a convex shape during clamped position at screw, and is flat pattern when the screws clamp position.
An also purpose of the present invention provides a kind of electric protective device, and this electric protective device comprises at least one terminal, and this terminal comprises aforementioned feature or combination of features.
Description of drawings
By following detailed description and with reference to the accompanying drawings, can clearer other advantage of the present invention and feature, accompanying drawing has just provided non-limiting example, and in the accompanying drawing:
Fig. 1 and 2 represents that with two partial sectional views the terminal of first embodiment of the invention, this terminal pack in the electric device, and is equipped with compensating plate, is in the not clamped position and the clamped position of terminal screw respectively;
Fig. 3 and 4 represents that with two partial sectional views the terminal of second embodiment of the invention, this terminal pack in the electric device, and is equipped with compensating plate, is in the not clamped position and the clamped position of terminal screw respectively;
Fig. 5,6 and 7 represents the terminal of third embodiment of the invention with three with the similar view of front view, this terminal is packed in the electric device, described terminal is flexible, and for Fig. 5,6,7, the terminal of the indicating device bar that be respectively the terminal that do not have the indicating device bar, has the non-clamping position that is in terminal screw and terminal with indicating device bar of the clamped position that is in terminal screw;
Fig. 8 and 9 represents that with the similar view of front view the terminal of the fourth embodiment of the present invention, this terminal pack in the electric device with two, and is equipped with flexible strip;
Figure 10,11 and 12 is with three binding posts with similar view table diagrammatic sketch 8 of front view and 9 illustrated embodiments, and is equipped with the lock indicator that is used for dual operation in addition;
Figure 13 and 14 represents to be equipped with the electric protective device of terminal of the present invention with two partial sectional views, and this indicating device has the additional function of relieving mechanism, is in not clamped position and clamped position respectively; And
Figure 15 and 16 represents the terminal of another embodiment of the present invention with partial sectional view, is in the not clamped position and the clamped position of screw respectively.
Figure 17 represents the curve chart of the clamping force and the relation that terminal is out of shape of terminal of the present invention;
Embodiment
In the accompanying drawings, can see that electric connecting terminals B is contained in the inside of the housing C of circuit breaker D.This terminal B comprises duct 1, and described duct 1 comprises roof 2, diapire 3 and two sidewalls 4,5, and described wall forms the framework of determining opening 6, and the intercell connector 7 of device D passes this opening 6.
The roof 2 in duct 1 comprises screwed hole 8, and screw 9 (being called terminal screw) is designed to be screwed in this screwed hole 8.
In Fig. 1 to 4, terminal B is a removable duct type.In the not clamped position and clamped position of screw 9, the end of screw 9 and above-mentioned intercell connector 7 electrically contact.Terminal B also comprises steel counterbalance spring plate 11, and this latch plate 11 is arranged between the end (or screw bottom) and intercell connector 7 of screw 9, and is designed to compensate may bending of terminal B.When not having power to be applied on this compensating plate 11, this compensating plate 11 has convex shape (Fig. 1 and Fig. 3).When carrying out cable fastening, this plate 11 is store mechanical energy (Fig. 2 and 4) by flattening.When screw loosening takes place when, discharge this energy stored, plate 11 returns its initial convex shape gradually, thereby prevents that terminal B from fluffing.
According to the present invention, terminal B also comprises indicating device bar 12, and this indicating device bar 12 is cast with described plate 11, and extends along the direction towards device case C top.
In Fig. 1 and 2, can see that the free end of bar 12 comprises indicating device 13, this indicating device 13 is designed to and is located at opening 14 collaborative works among the housing C, so that the clamped condition of indication terminal screw 9.Preferably, this indicating device 13 is dual indicating devices, comprises white portion 13a and red area 13b.
In Fig. 3 and 4, can see that bar 12 is included in the single indicating device 15 of its end or shows antenna, described indicating device 15 is designed to and is arranged in recess 16 collaborative works among the housing C, protrude from the surface of housing when clamping and appear (Fig. 3) with convenient terminal, and concordant with the profile of device and disappear (Fig. 4) when cable correctly contacts.
In Fig. 5,6 and 7, can see the terminal B that is called flexible duct terminal, the flexibility of terminal makes it possible to compensate the bending effect of terminal, described in patent EP1085601.This terminal B comprises duct 1, and this duct 1 forms by cutting and folding conductiving metal strip, and this conductiving metal strip is folded into and forms basic quadrangular section.The inside in duct 1 provides the opening 6 that is defined by bottom 3 and side branch 4,5, this bottom 3 is connected with two the vertical side branches 4,5 that extend parallel to each other, this side branch 4,5 is by top branch 33,17 extension that meets at right angles, and pinching screw 6 passes this top branch 33,17.
3 the opposite side in the bottom, the duct 1 of terminal B comprise two stacked end branches 17,33,17, the 33 first axial spacing J1 spaced from each other of these two end branches.Outer bend branch 33 links to each other with left-hand side vertical side branch, and provides smooth circular port 18, is used to make screw 9 to pass through.Another medial end branch 17 is folded into the carriage of right-hand side vertical side branch 1, and provides the more screwed hole 19 of minor diameter, is used for screw 9.Externally provide the second horizontal spacing J2 between the handle of the outer wall of circular port 18 and screw 9 on place, end one side of branch 33.
According to this embodiment of the invention, shown in Fig. 6 and 7, indicating device bar 12 is fixed on the duct 1 at 2, is respectively at 1: 20 place between a vertical sidewall 4 and the outer bend branch 33 with at 1: 21 place between another vertical sidewall 5 and interior curve branch 17.Should be known in that indicating device 13 can be made of plastics fully, perhaps is not made of plastics.
In Fig. 8 and 9, terminal B is fixing duct type.Intercell connector 7 is fixed on the diapire 3 in duct 1.According to the present invention, this intercell connector 7 is formed by flat part 22, and this flat part 22 extends to part 23, thereby formation is hollow a little, and two parts 22,23 connect by circular portion 24.In this embodiment, indicating device bar 12 is connected with flexible strip 7 at the overhead height place of above-mentioned circular portion 24, and described bar 12 is cast with described 7.
In Figure 10,11 and 12, can see the terminal B of Fig. 8 and 9, wherein, also provide locking system, this locking system can make indicating device bar 12 be in two positions, i.e. position when indicating device bar 12 is represented the clamped position of terminal B and the position when indicating device bar 12 is represented the not clamped position of terminal B.Locking system comprises the protruding part 25 that is located on the housing C, and this protruding part 25 is designed to and indicating device 13 collaborative works, so that the fastening indicating device bar 12 that just makes does not remain on and the corresponding position of the clamped condition of terminal B as long as terminal B has fully.
In Figure 13 and 14, can see terminal B, the terminal B of Fig. 1 and 2 for example, this terminal B is contained in the housing C inside of circuit breaker D.In this embodiment, indicating device 13 is carried out two functions, promptly indicates second function of the M of mechanism of first function of clamped condition of terminal B and the circuit breaker D that unblanks.
In Figure 15 and 16, can see terminal B of the present invention.Terminal B comprises flexible piece 26, and protruding part comprises flexible sheets 27 and with described 27 bar of casting 12.This sheet 27 its two ends height be in screw 9 and the device D shell 28 between pressurized, like this, described 27 not clamped position of screw 9/ terminal B assembly upwards being pressed to screw 9, and tighten screw 9 and will make sheet 27 produce distortion, thereby make the position of indicating device 12 corresponding sports to the clamped condition of indicating screw 9.
Introduce the operation of the terminal of different embodiments of the invention below with reference to the accompanying drawings.
In Fig. 1, terminal B does not work, and latch plate 11 is in disarmed state, and at this moment it is a convex shape.In this position, pinching screw 9 does not clamp, and the part 13b of the indicating device 13 of indicating device bar 12 is facing to the opening 14 of housing C, and the not clamped condition of the screw 9 of terminal B is indicated in this position.Then, conductor 29 inserts in the opening 6 of terminal B, and places on the diapire 3 in duct 1 (Fig. 2).Then, drive screw 9.In Fig. 2, can see that the screw of drive terminal B makes duct 1 move towards the top of terminal B, moves to and intercell connector 7 position contacting thereby drive conductor 29.In this position, latch plate 11 is pressed on the intercell connector 7 and bending by two opposite edges 30,31, becomes flat up to it.The distortion of this plate 11 makes bar 12 move to such position, and promptly the part 13b of indicating device 13 no longer faces toward the opening 14 of housing C, but below the roof of housing C.Then, the part 13a of indicating device 13 indicates the clamped position of the screw 9 of terminal B so again facing to the opening 14 of housing C.When terminal B becomes flexible owing to vibration or is crooked, to impel latch plate 11 to become its initial position, it is convex, so that compensation terminal B's is loosening, and indicating device bar 12 moves to and makes part 13b face toward the position of the opening 14 of housing C, so that indicate the fault of terminal B to clamp quality to operating personnel.
The operation of terminal B shown in Fig. 3 and 4 will no longer be introduced, because it is with identical shown in Fig. 1 and 2, just in Fig. 3 and 4, indicating device bar 12 can protrude (Fig. 3) so that motion between the position of recess 16 inside (Fig. 4) of the position of the not clamped condition of indication terminal B and the housing C that packs into (at the clamped condition of this position indication terminal B) from housing C in difference.
The operation of Fig. 5,6 and 7 terminal is as follows:
In the not clamped condition of screw 9 shown in Figure 6, horizontal outer branches 33 is parallel to horizontal inner branch 17, and the even vertical shift J1 that equals first spacing is arranged.In this position, the part 13b of the indicating device 13 of bar 12 does not face toward the opening 14 of housing, but part 13a faces toward this opening 14, the not clamped condition of this indication screw.
When carrying out the connection of cable 29 (Fig. 7), when beginning to tighten screw 9, reach first and clamp the limit, the end of at this moment inner branch 17 occupies the first spacing J1, and the retainer that forms against the bottom surface by outer branches 33.When continuing to tighten screw 9 after the retainer that is formed by outer branches 33 in the end of branch 17, duct 1 becomes harder, and the axial thrust force F in terminal B increases fast by second slope of curve B (Figure 17).This causes outer branches 33 to raise a little along arrow F direction, this branch 33 be designed to when reaching preset limit and the handle of screw 9 against engagement.When duct 1 deformed, 12 motions of indicating device bar faced toward the opening 14 of housing C up to the part 13b of indicating device 13, so that indicate the clamped condition of the screw 9 of terminal B.Then, screw 9 can not be tightened again, and obtains to produce the torque limiter of constant clamping force.
In Fig. 8 and 9, terminal B is fixing duct type.In Fig. 8, the screw 9 of terminal B does not clamp, and the part 13b of indicating device 13 is facing to the opening 14 of the housing C of device.In Fig. 9, screw 9 is in clamped condition, and the motion of screw 9 makes top 23 distortion of bar 7, and clamps conductor 29 between standing part 32 and described 7.The distortion of flexible strip 7 makes bar 12 move, like this, and the clamped condition of the part 13a of indicating device 13 indication screw 9.
In Figure 10, the screw 9 of terminal B does not clamp, and indicating device 13 remains on the position on the Lock Part 25 that is locked in housing C.In Figure 11, screw 9 local clampings of terminal B, but when clamping imperfect tense, bar 12 remains locked on the shell C of device D.In Figure 12, clamping is finished, and locking system no longer carries out the function of its maintenance bar 12, and described bar 12 self is because elasticity and discharging from Lock Part 25.At this moment, indicating device 13 is in the position of the clamped condition of indication screw 9, and the part 13a of bar is facing to the opening 14 of housing.Locking system can make indicating device 12 carry out high-speed motion, and this indicating device 12 is carried out binary functions.
In Figure 13, the screw 9 of terminal B tightly clamps, and indicating device 13 is indicated this state by the part 13a that makes it facing to the opening 14 among the housing C.In this position, bar 12 does not act on the M of mechanism of device D.
In Figure 14, the screw 9 of terminal B is in not clamped condition, and at this moment bar 12 acts on the M of mechanism of circuit breaker D, so that the described M of mechanism is unblanked.In this position, indicating device 13 is indicated the not clamped condition of terminal screw 9 facing to opening 14 by the part 13b that makes it.Therefore, indicating device bar 12 makes the M of mechanism trip.As terminal B because carelessness or any other is former thereby when not clamping, perhaps when terminal because vibration or other are former thereby loosening or during creep, this tripping operation that will the generation M of mechanism.
In Figure 15, screw 9 is in not clamped condition, and the flexible sheets 26 that is bearing on the head of screw 9 is pushed the assembly of screw 9 and terminal B to the device top, and indicating device bar 12 is facing to the opening 14 of housing C.In Figure 16, screw 9 is in clamped position, and the pressing of sheet 26 makes bar 12 move to the retracted position below the roof of the housing C that installs D.
Should be known in used flexible piece can for crooked, twist or reverse compensating plate.
Certainly, the present invention is not limited to described and illustrated embodiment, and these embodiment just are used for purpose for example.For example, the present invention also can be used to be designed to clamp the terminal of homalocephalus connector or bar.
On the contrary, the present invention will extend to all technical equivalents that comprise described device and their combination, if they according to the present invention spirit and realizing.
Claims (17)
1. electric connecting terminals comprises:
The duct, this duct forms the framework around an opening, and this opening receives the intercell connector of electric device, and the cable that will connect is inserted;
Clamp the screw of usefulness, this screw designs becomes clamping cables between intercell connector and duct or described screw; And
The indicating device bar, this indicating device bar is represented the clamping quality of screw, described indicating device bar is designed to and is located at the opening collaborative work in the housing of electric device, and can not move between the second place of clamped condition at the primary importance of indication screws clamp state and indication screw, described indicating device bar (12) is fixed on flexible piece (11,1,7,26) on, described flexible piece is in corresponding to first shape of screw (9) clamped condition and the process of not moving between second shape of clamped condition corresponding to screw (9), can directly be out of shape by screw
Described indicating device bar (12) comprise with described housing in opening (14) collaborative work first end and be fixed on second end on the described flexible piece (11,1,7,26), make the distortion of flexible piece between first shape and second shape produce indicating device bar (12) corresponding angular movement between the above-mentioned primary importance and the second place
It is characterized in that: flexible piece (11,1,7,26) comprises the latch plate (11) that is arranged between screw (9) and the above-mentioned intercell connector (7), and described latch plate (11) can be by screw (9) be out of shape between the convex shape of clamped condition and the flat pattern corresponding to described screw (9) clamped condition corresponding to screw (9).
2. electric connecting terminals according to claim 1 is characterized in that: above-mentioned flexible piece is the compensated part (11,1,7) that relaxes.
3. electric connecting terminals according to claim 1 is characterized in that: above-mentioned indicating device bar (12) is cast with above-mentioned flexible piece (11,1,7,26).
4. electric connecting terminals according to claim 1, it is characterized in that: described indicating device bar (12) stretches out from an end of latch plate (11), and when latch plate (11) is in flat position corresponding to screw (9) clamped condition and described latch plate (11) form about 90 ° of angles, when latch plate (11) be in corresponding to screw (9) not during the convex position of clamped condition and described plate form about hexagonal angle.
5. electric connecting terminals according to claim 1, it is characterized in that: described indicating device bar (12) forms the indicating device (13) that comprises two regions of different colours (13a, 13b), according to the clamping of screw (9) or clamped condition not, in these two zones (13a, 13b) one or another can move into facing to the opening (14) in the housing (C).
6. electric connecting terminals according to claim 1 is characterized in that: flexible piece is cast with intercell connector (7).
7. electric connecting terminals according to claim 1, it is characterized in that: it comprises the locking device (25) that is arranged on the housing, this locking device can make indicating device bar (12) remain on corresponding to screw (9) second place of clamped condition not, is in complete clamped condition up to screw (9).
8. electric connecting terminals according to claim 1; be designed to be arranged in the binding post box of electric protective device (D); this electric protective device comprises tripping mechanism (M), and wherein: above-mentioned indicating device bar (12) is arranged to act on when screw (9) is not clamped to a certain degree on the tripping mechanism (M) of electric protective device (D).
9. electric connecting terminals according to claim 1; it is characterized in that: above-mentioned flexible piece comprises flexible sheets (26); described flexible sheets (26) comprises indicating device bar (12); described indicating device bar is cast with described flexible sheets (26); described flexible sheets (26) is pressurized between the housing (28) of screw (9) and electric protective device (D); like this; tightening of screw (9) makes flexible sheets (26) produce distortion; thereby make indicating device bar (12) corresponding sports to the primary importance of indicating screw (9) clamped condition, and described flexible sheets (26) is upwards pushed screw (9) assembly to by the not clamped condition correspondence of the screw (9) of the second place of indicating device bar (12) indication position.
10. electric connecting terminals according to claim 9 is characterized in that: flexible sheets (26) is not a convex shape during position of clamped condition correspondence at screw (9), and is flat pattern when the position of screw (9) clamped condition correspondence.
11. an electric connecting terminals comprises:
The duct, this duct forms the framework around an opening, and this opening receives the intercell connector of electric device, and the cable that will connect is inserted;
Clamp the screw of usefulness, this screw designs becomes clamping cables between intercell connector and duct or described screw; And
The indicating device bar, this indicating device bar is represented the clamping quality of screw, above-mentioned indicating device bar (12) and recess (16) collaborative work that is located in the housing (C) of electric device, and can not move between the second place of clamped condition at the primary importance of indication screws clamp state and indication screw, like this, described indicating device bar (12) is retracted into described recess (16) inside when being in above-mentioned primary importance, and from housing (C), protrude when being in the second place at described indicating device bar (12), described indicating device bar (12) is fixed on flexible piece (11,1,7,26) on, described flexible piece is in corresponding to first shape of screw (9) clamped condition and the process of not moving between second shape of clamped condition corresponding to screw (9), can directly be out of shape by screw
Described indicating device bar (12) comprise with described housing in recess (16) collaborative work first end and be fixed on second end on the described flexible piece (11,1,7,26), make the distortion of flexible piece between first shape and second shape produce indicating device bar (12) corresponding angular movement between the above-mentioned primary importance and the second place
It is characterized in that: flexible piece (11,1,7,26) comprises the latch plate (11) that is arranged between screw (9) and the above-mentioned intercell connector (7), and described latch plate (11) can be by screw (9) be out of shape between the convex shape of clamped condition and the flat pattern corresponding to described screw (9) clamped condition corresponding to screw (9).
12. electric connecting terminals according to claim 11, it is characterized in that: described indicating device bar (12) forms the indicating device (13) that comprises two regions of different colours (13a, 13b), according to the clamping of screw or clamped condition not, in these two zones (13a, 13b) one or another can move into facing to the recess (16) in the housing (C).
13. electric connecting terminals according to claim 11 is characterized in that: flexible piece is cast with intercell connector (7).
14. electric connecting terminals according to claim 11, it is characterized in that: it comprises locking device (25), this locking device is arranged on the housing of electric device, indicating device bar (12) is remained on corresponding to screw (9) second place of clamped condition not, be in complete clamped condition up to screw (9).
15. electric connecting terminals according to claim 11; be designed to be arranged in the binding post box of electric protective device (D); this electric protective device (D) comprises tripping mechanism (M), it is characterized in that: above-mentioned indicating device bar (12) is arranged to act on when screw (9) is not clamped to a certain degree on the tripping mechanism (M) of electric protective device (D).
16. an electric connecting terminals comprises:
Duct (1), this duct obtains by cutting and folded metal bar, so that form the flexible frame around the opening (6) that is used to insert the cable (29) that will connect, this opening receives the intercell connector of electric device;
Clamp the screw (9) of usefulness, this screw designs becomes clamping cables (29) between the bottom (3) of intercell connector (7) and duct (1);
The indicating device bar, this indicating device bar is represented the clamping quality of screw, described indicating device bar is designed to and is located at the opening collaborative work in the housing of electric device, and can not move between the second place of clamped condition at the primary importance of indication screws clamp state and indication screw, described indicating device bar (12) is fixed on the flexible frame, described flexible frame is in corresponding to first shape of screw (9) clamped condition and the process of not moving between second shape of clamped condition corresponding to screw (9), can directly be out of shape by screw, described indicating device bar (12) comprise with described housing in the opening collaborative work first end and be fixed on second end on the described flexible frame, make the distortion of flexible frame between first shape and second shape produce indicating device bar (12) corresponding angular movement between the above-mentioned primary importance and the second place;
Interior curve branch (17) and outer bend branch (33), be used to seal the flexible frame of duct (1), described outer bend branch (33) links to each other with a side vertical sidewall (4) in described duct, and interior curve branch (17) links to each other with the opposite side vertical sidewall (5) in described duct, under the not clamped condition of screw (9), these two crooked branches are separated to a few axial spacing (J1), and this axial spacing extends along the direction of motion of screw (9);
Stopper means, this stopper means has been determined occupying axial spacing (J1) the first clamping limit afterwards at screw (9) when beginning to clamp, when screw (9) is further tightened, so that when making the clamping force increase clamp the limit above described first, this duct (1) becomes harder, then, when screw (9) when unclamping, the duct returns back to its original geometric form, described duct (1) has flexible structure, this flexible structure has dual slope, like this, the axial tension that produces in electric connecting terminals when clamping increases in ratio first slope part in second slope part more quickly, after clamping the limit above first, to carry out from of the conversion of first slope to second slope
Described electric connecting terminals is characterised in that: locate and second point (21) that be positioned at described another vertical sidewall (5) and interior curve branch (17) between locate be fixed to described duct (1) on being positioned at by first point (20) between an outer bend branch (33) and the described vertical sidewall (4) for above-mentioned indicating device bar (12).
17. an electric protective device comprises that at least one is according to the described electric connecting terminals of aforementioned any one claim.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0313329A FR2862443B1 (en) | 2003-11-14 | 2003-11-14 | ELECTRICAL CONNECTION TERMINAL AND ELECTRICAL PROTECTION APPARATUS COMPRISING SUCH A TERMINAL |
| FR0313329 | 2003-11-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1617389A CN1617389A (en) | 2005-05-18 |
| CN100442599C true CN100442599C (en) | 2008-12-10 |
Family
ID=34429990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100925723A Expired - Fee Related CN100442599C (en) | 2003-11-14 | 2004-11-15 | Electrical terminal and electrical protection apparatus containing such a terminal |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1531519B1 (en) |
| CN (1) | CN100442599C (en) |
| AT (1) | ATE386347T1 (en) |
| DE (1) | DE602004011727T2 (en) |
| ES (1) | ES2300724T3 (en) |
| FR (1) | FR2862443B1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101179161B (en) * | 2006-11-08 | 2011-09-07 | 乐金电子(天津)电器有限公司 | Distribution block of air conditioner |
| DE102007006367A1 (en) * | 2007-02-08 | 2008-08-21 | Siemens Ag | Circuit breaker with terminal |
| FR2959613B1 (en) | 2010-04-30 | 2012-04-20 | Schneider Electric Ind Sas | CONNECTING SYSTEM FOR SIGNALING THE TIGHTENING TORQUE OF A SCREW TERMINAL. |
| FR2975232B1 (en) * | 2011-05-13 | 2013-05-10 | Schneider Electric Ind Sas | DEVICE FOR SIGNALING THE TIGHTENING TORQUE OF A SCREW TERMINAL |
| DE102011051231B4 (en) * | 2011-06-21 | 2022-10-20 | Phoenix Contact Gmbh & Co. Kg | Terminal body, electrical connection terminal and method for producing a terminal body |
| 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 |
| CN107579364B (en) * | 2017-08-31 | 2022-09-20 | 国网河南省电力公司内乡县供电公司 | Binding post with screw is become flexible prompt facility |
| US10431922B2 (en) * | 2017-12-27 | 2019-10-01 | Leviton Manufacturing Co., Inc. | Pin and sleeve device with contact carrier for capturing set screws |
| US11139136B1 (en) * | 2020-05-30 | 2021-10-05 | Regal Beloit America, Inc. | Fuse holder with busbar clamp |
| CN114361823A (en) * | 2022-01-18 | 2022-04-15 | 三门核电有限公司 | Anti-loosening terminal strip with indication function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4408590A1 (en) * | 1993-03-15 | 1994-09-22 | Legrand Sa | Electrical device having a connecting terminal and a pointer |
| FR2720863A1 (en) * | 1994-06-01 | 1995-12-08 | Legrand Sa | Connection box with terminal connection status indicator |
| CN2262295Y (en) * | 1996-03-18 | 1997-09-10 | 常州市新安电器开关厂 | Small circuit breaker |
| EP0854539A1 (en) * | 1997-01-09 | 1998-07-22 | Denis Philippe Baron | Electrical connections device |
| CN1288273A (en) * | 1999-09-15 | 2001-03-21 | 施耐德电器工业公司 | Connecting means having flexible sleeve |
| EP1280238A1 (en) * | 2001-07-23 | 2003-01-29 | Hager Electro S.A. | Clamping indicator |
-
2003
- 2003-11-14 FR FR0313329A patent/FR2862443B1/en not_active Expired - Fee Related
-
2004
- 2004-09-07 EP EP04354032A patent/EP1531519B1/en active Active
- 2004-09-07 ES ES04354032T patent/ES2300724T3/en active Active
- 2004-09-07 AT AT04354032T patent/ATE386347T1/en not_active IP Right Cessation
- 2004-09-07 DE DE602004011727T patent/DE602004011727T2/en active Active
- 2004-11-15 CN CNB2004100925723A patent/CN100442599C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4408590A1 (en) * | 1993-03-15 | 1994-09-22 | Legrand Sa | Electrical device having a connecting terminal and a pointer |
| FR2720863A1 (en) * | 1994-06-01 | 1995-12-08 | Legrand Sa | Connection box with terminal connection status indicator |
| CN2262295Y (en) * | 1996-03-18 | 1997-09-10 | 常州市新安电器开关厂 | Small circuit breaker |
| EP0854539A1 (en) * | 1997-01-09 | 1998-07-22 | Denis Philippe Baron | Electrical connections device |
| CN1288273A (en) * | 1999-09-15 | 2001-03-21 | 施耐德电器工业公司 | Connecting means having flexible sleeve |
| EP1280238A1 (en) * | 2001-07-23 | 2003-01-29 | Hager Electro S.A. | Clamping indicator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1617389A (en) | 2005-05-18 |
| EP1531519B1 (en) | 2008-02-13 |
| ATE386347T1 (en) | 2008-03-15 |
| ES2300724T3 (en) | 2008-06-16 |
| DE602004011727T2 (en) | 2009-01-29 |
| DE602004011727D1 (en) | 2008-03-27 |
| EP1531519A1 (en) | 2005-05-18 |
| FR2862443B1 (en) | 2006-10-27 |
| FR2862443A1 (en) | 2005-05-20 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20081210 Termination date: 20201115 |