CN102315049B - Device for electrical connection and circuit breaker - Google Patents
Device for electrical connection and circuit breaker Download PDFInfo
- Publication number
- CN102315049B CN102315049B CN201110180486.8A CN201110180486A CN102315049B CN 102315049 B CN102315049 B CN 102315049B CN 201110180486 A CN201110180486 A CN 201110180486A CN 102315049 B CN102315049 B CN 102315049B
- Authority
- CN
- China
- Prior art keywords
- bimetallic strip
- conductive component
- contact zones
- electrical connection
- strip
- 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.)
- Active
Links
Classifications
-
- 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
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/14—Electrothermal mechanisms
- H01H71/16—Electrothermal mechanisms with bimetal element
-
- 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
-
- 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
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
- H01H71/7427—Adjusting only the electrothermal mechanism
- H01H71/7436—Adjusting the position (or prestrain) of the bimetal
Landscapes
- Thermally Actuated Switches (AREA)
- Contacts (AREA)
- Breakers (AREA)
Abstract
The invention relates to a device for electrical connection and a circuit breaker. The device is applied in an electrical switch device to connect a foot of a bimetal strip with a contact strip. The bimetal strip can be moved via an adjusting screw so as to be thermally adjusted. The device is characterized in that the device has a flat conductive component (6) fixed on the contact strip (1) and the bimetal strip (2), wherein the conductive component is formed by at least one continuous conductive element. The conductive element is wound and flattened, so as to have a length substantially corresponding to a gap between the foot of the bimetal strip and the contact strip and to have a semi-rigid structure. The semi-rigid structure permits the deformation of the conductive component under the adjusting effect of the adjusting screw (7) so as to permit the displacement of the bimetal strip (2), while being sufficiently rigid for assuring relative positioning of the foot of the bimetal strip with respect to the contact strip.
Description
Technical field
The present invention relates to a kind of electrical connection, for being electrically connected pin and the contact zones of bimetallic strip in electric switch equipment, described bimetallic strip can move the thermal conditioning to carry out bimetallic strip by set screw.
Background technology
Known at the pin of bimetallic strip with the interface unit comprising woven fabric strip (woven braid) carrying out between contact zones being electrically connected in circuit breaker.But these band volumes are large.In addition, each element connected by band, i.e. bimetallic strip and contact zones, before band is assemblied in its accommodation section, must be arranged in circuit breaker respectively, and described band must be configured as does not remember its shape.Its this shaping entering accommodation section that makes of band is restricted, and needs to use special instrument.
Summary of the invention
The present invention addresses these problems, and proposes a kind of interface unit connecting bimetallic strip and contact zones, its simplicity of design, occupy small size, and can be used in higher electric current compared with during use band, eliminate the step of moulding band in advance, can hot curing be realized and eliminate the bad risk of hot curing.
Be intended to for this reason, an object of the present invention is to provide a kind of electrical connection of the above-mentioned type, the feature of this device is, it comprises smooth conductive component, described conductive component is fixed on contact zones on the one hand, and be fixed on bimetallic strip on the other hand, described conductive component is formed by least one continuous print conducting element, described conducting element is wound then planarization, both to give described conducting element with the length basic corresponding with the distance of the pin with described contact zones that are separated described bimetallic strip, give again a kind of semirigid structure, this semirigid structure can realize it and deform under the impact of the adjustment of set screw, to allow the motion of described bimetallic strip, there is sufficient rigidity simultaneously to guarantee the relative configuration of the pin of described bimetallic strip relative to described contact zones.
According to a specific embodiment, this conductive component is made up of the band being wrapped in from it.
According to another embodiment, this conductive component is made up of the wire reeling.
According to a specific features, described smooth conductive component takes the shape of the letter U before it is fixing.
According to a specific features, above-mentioned conductive component is made of copper.
According to a specific features, above-mentioned conductive component respectively via two contrary end winding support to contact zones and bimetallic strip.
According to another feature, described continuous print element is band, and this band is fixed by welding on contact zones and bimetallic strip, and comprises the projection being designed to promote this welding.
Another object of the present invention is to provide a kind of device for bimetallic strip being connected to contact zones comprising above-mentioned arbitrary independent feature or assemblage characteristic.
Accompanying drawing explanation
In detailed description from below by the accompanying drawing provided with reference to being only example object, other advantage of the present invention and feature will become more cheer and bright, in accompanying drawing:
Fig. 1 is the fragmentary, perspective view of the device for being electrically connected contact zones and bimetallic strip that prior art is shown,
Fig. 2 illustrate in perspective view the conductive component of the device belonging to a specific embodiment of the present invention, and described parts illustrate with two different orientations,
Fig. 3 is the partial section that the device of the present invention be assemblied in circuit breaker is shown, and
Fig. 4 is the perspective view of a part for the element that a figure is only shown, is namely assemblied in bimetallic strip and the interface unit between contact zones and arc horn.
Embodiment
In FIG, can see and belong to the contact zones 1 of circuit breaker, bimetallic strip 2 and arc horn 3 with a kind of known way, this bimetallic strip 2 represents the thermal overload release part of circuit breaker, and contact of breaker can be made to open when there is electrical overloads.This bimetallic strip 2 and contact zones 1 are electrically connected by woven fabric strip (braid) 4, and woven fabric strip 4 is fixed to contact zones 1 via one end thereof 4a, and are fixed to the supporter 5 of the pin 2a supporting bimetallic strip via its relative end 4b.
In FIG, band is in installation position before assembly.This band is without any shape memory.By before this assembled is in Shell of circuit breaker, first by the correct side of bimetallic strip 2 manual configuration at contact zones 1, then these contact zones 1 must be inserted in its accommodation section.Then bimetallic strip must be inserted in its accommodation section, with eventually through special tool(s) by band compacting in its accommodation section, this carry out process operation time there is certain difficulty.
According to a specific embodiment of the present invention, this band is replaced by semi-rigid conductive component 6 as shown in Figure 2, and these parts are by being wrapped in from making with the copper strips forming strap with it.
When being assemblied in circuit breaker, as shown in Figures 3 and 4, this conductive component 6 occupies the volume less than the band being in identical currents.It is semi-rigid that this ad hoc structures of the parts be made up of the conducting element of continuous winding gives this part, the pin 2a of bimetallic strip is obtained mobile when it carries out hot curing by set screw 7, although the cross section of conductive component is equal with the cross section of real core conductor.
When the sub-component comprising bimetallic strip and contact zones is made into, semi-rigid conductive component 6 is given a given shape, the shape that conductive component 6 keeps.When assembling in the housing, the element of sub-component is provided as the accommodation section in the face of them.The not new shaping of necessarily semirigid portion.
Produce such as according to the parts of above-described embodiment in the following manner:
Copper strips is wrapped in certainly with it to form Flat conductive parts.Then these parts are folded into U-shaped.Then by welding, end 6a, 6b of described parts are fixed to the pin of bimetallic strip respectively and are fixed to contact zones.Conductive component 6 arranges protruding 8 to promote welding.
These parts obtain like this: in the axle of institute's measured length, be wound around splitter (shunt), then these parts of planarization make it preform on press.These parts can online production for cutting part, and directly integrated in production scene.
Being wrapped in by band can make the industrial manufacturing process of conductive component significantly be simplified from the present embodiment with it.
According to a unshowned embodiment, this conductive component can form coil then planarization wire by being wound is made.
The present embodiment in continuous conduction element versions can realize gain to the heating at terminal level place further.Compared with realizing with by woven fabric strip, heat extraction is promoted.
Therefore by present invention obtains the interface unit that can realize using heavy current, described device is deformable by the pressure of screw, and to allow the thermal conditioning of bimetallic strip, described device can be contained in small size.
The present invention thus the heavy in section band for high electric current can be made to be replaced by the accepted industry solutions that is made up of more heavy in section semi-rigid conductor of same volume.
The industry assembling time that the present invention can also realize carrying out device economizes the plenty of time.Owing to giving semi-rigid current-carrying part U-shape in advance, so the pin of bimetallic strip and the relative configuration of contact zones are fixed.Therefore need not to worry in advance a relative configuration relative to another.For woven fabric strip, bimetallic strip and contact zones are between which without any the mechanical connection of rigidity.Therefore, operator must manually carry out the configuration of bimetallic strip relative to contact zones before being assemblied in device by band.
The position of heat bimetallic strip 125A can be regulated because of the semi-rigid of one side conductive component like a cork and obtain the fact of temperature gain on the other hand at terminal place, opening the new way in bimetallic strip selection, thus enable it regulate the cross section of conduction.
The present invention is advantageously applicable to high current module formula circuit breaker.
The present invention is never confined to described and illustrated embodiment naturally, and they are exemplarily object and providing just.
On the contrary, the present invention may extend into all technical equivalents schemes comprising described device and combination thereof, as long as their spirit according to the present invention obtains.
Claims (8)
1. an electrical connection, be electrically connected with between contact zones at the pin of bimetallic strip in electrical switchgear, described bimetallic strip can move the thermal conditioning to carry out bimetallic strip by set screw, it is characterized in that, it comprises smooth conductive component (6), described conductive component (6) is fixed on described contact zones (1) on the one hand, and be fixed on described bimetallic strip (2) on the other hand, described conductive component is formed by least one continuous print conducting element, described conducting element is wound then planarization, both to give described conducting element with the length basic corresponding with the distance of the pin with described contact zones that are separated described bimetallic strip, give again a kind of semirigid structure, this semirigid structure can realize it and deform under the impact of the adjustment of set screw (7), to allow the motion of described bimetallic strip (2), there is sufficient rigidity simultaneously to guarantee the relative configuration of the pin of described bimetallic strip relative to described contact zones.
2. electrical connection as claimed in claim 1, is characterized in that, described conductive component (6) is made up of the band being wrapped in from it.
3. electrical connection as claimed in claim 1, it is characterized in that, described conductive component is made up of the wire reeling.
4. the electrical connection according to any one of claims 1 to 3, is characterized in that, described smooth conductive component is folded into U-shaped before being fixed.
5. the electrical connection according to any one of claims 1 to 3, is characterized in that, above-mentioned conductive component is made of copper.
6. the electrical connection according to any one of claims 1 to 3, it is characterized in that, above-mentioned conductive component (6) is fixed on described contact zones (1) and described bimetallic strip (2) via two contrary end (6a, 6b) respectively.
7. the electrical connection according to any one of claims 1 to 3, it is characterized in that, described continuous print element is band, and this band is fixed by welding on described contact zones and described bimetallic strip, and this band comprises the projection (8) being designed to promote this welding.
8. a circuit breaker, comprise bimetallic strip and the contact zones being positioned at bimetallic strip side, it is characterized in that, described circuit breaker comprises a kind of electrical connection bimetallic strip (2) being connected to contact zones (1) according to any one of the claims.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1002800A FR2962254B1 (en) | 2010-07-02 | 2010-07-02 | DEVICE FOR ELECTRICAL CONNECTION BETWEEN THE FOOT OF A BILAME AND A TERMINAL RANGE IN AN ELECTRICAL CUTTING APPARATUS, AND CIRCUIT BREAKER COMPRISING SUCH A DEVICE |
| FR10/02800 | 2010-07-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102315049A CN102315049A (en) | 2012-01-11 |
| CN102315049B true CN102315049B (en) | 2015-04-15 |
Family
ID=43558036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110180486.8A Active CN102315049B (en) | 2010-07-02 | 2011-06-30 | Device for electrical connection and circuit breaker |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2402972B1 (en) |
| CN (1) | CN102315049B (en) |
| ES (1) | ES2395714T3 (en) |
| FR (1) | FR2962254B1 (en) |
| HK (1) | HK1164537A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3408606A (en) * | 1966-06-10 | 1968-10-29 | Ite Circuit Breaker Ltd | Low ampere circuit breaker with indirectly heated thermal element |
| EP0691668A1 (en) * | 1994-07-08 | 1996-01-10 | Legrand | Thermic sub-assembly for circuit breaker |
| CN2938385Y (en) * | 2006-08-17 | 2007-08-22 | 浙江省志明电气进出口有限公司 | Leakage circuit breaker |
-
2010
- 2010-07-02 FR FR1002800A patent/FR2962254B1/en not_active Expired - Fee Related
-
2011
- 2011-04-18 ES ES11354015T patent/ES2395714T3/en active Active
- 2011-04-18 EP EP20110354015 patent/EP2402972B1/en active Active
- 2011-06-30 CN CN201110180486.8A patent/CN102315049B/en active Active
-
2012
- 2012-05-16 HK HK12104797.3A patent/HK1164537A1/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3408606A (en) * | 1966-06-10 | 1968-10-29 | Ite Circuit Breaker Ltd | Low ampere circuit breaker with indirectly heated thermal element |
| EP0691668A1 (en) * | 1994-07-08 | 1996-01-10 | Legrand | Thermic sub-assembly for circuit breaker |
| CN2938385Y (en) * | 2006-08-17 | 2007-08-22 | 浙江省志明电气进出口有限公司 | Leakage circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102315049A (en) | 2012-01-11 |
| ES2395714T3 (en) | 2013-02-14 |
| HK1164537A1 (en) | 2012-09-21 |
| FR2962254A1 (en) | 2012-01-06 |
| EP2402972A1 (en) | 2012-01-04 |
| FR2962254B1 (en) | 2012-07-13 |
| EP2402972B1 (en) | 2012-11-28 |
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