CN202816837U - A movable contact bridge and an electric switch device - Google Patents
A movable contact bridge and an electric switch device Download PDFInfo
- Publication number
- CN202816837U CN202816837U CN 201220118601 CN201220118601U CN202816837U CN 202816837 U CN202816837 U CN 202816837U CN 201220118601 CN201220118601 CN 201220118601 CN 201220118601 U CN201220118601 U CN 201220118601U CN 202816837 U CN202816837 U CN 202816837U
- Authority
- CN
- China
- Prior art keywords
- contact bridge
- contact
- limiting structure
- bridge
- housing
- 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.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
- H01H73/045—Bridging contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
- H01H1/2008—Facilitate mounting or replacing contact bridge and pressure spring on carrier
-
- 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
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
- H01H2071/0242—Assembling parts of a circuit breaker by using snap mounting techniques
Landscapes
- Breakers (AREA)
Abstract
The utility model discloses a contact bridge and an electric switch device. In the electric switch device equipped with two open circuits in translational motion, a movable contact bridge (10) comprises two contact pads (16) connected by a conductive belt (12). The conductive belt (12) is fixed on a limiting cage (18) in a fixed manner, the limiting cage (18) moving with the contact pads (16).
Description
Technical field
The utility model relates to a kind of current switching and interrupting device, especially the contact system of circuit breaker.The utility model more specifically relates to movable contactor device, and this movable contactor device forms bridge, allows electric current mobile or mobile between two fixed contacts of this equipment.The utility model relates in particular to the movable bridge construction that is integrated with the electric arc limitation function.
Background technology
Electric protective equipment comprises one or more pairs of movable contacts for each utmost point in common mode, these one or more pairs of movable contacts can be relative to each other the make position of current flowing and open between the location of short circuit mobile therein.The type and the scope that depend on equipment, different systems are used for this contact pair.For example, for the equipment of the contactor of the two short circuits of translation/circuit breaker type, each utmost point comprises two fixed contacts, they form association by means of bridge, described bridge comprises two movable contacts of facing with fixed contact, and can be between the open position of contact and make position translational motion, see EP0486389, EP1073084.
Especially, as shown in Figure 1, circuit breaker 1 holds the bridge 3 of two contacts in its housing 2, and this bridge is associated with strutting piece 4, and is biased into make position by contact pressure spring 5.The instruction campaign of strutting piece 4 causes bridge 3 to overcome the effect of spring 5 and moves, thereby opens circuit.For the damage that the parts of protection equipment 1 are not caused by electric arc, this electric arc might produce between fixed contact 6 and movable contact when opening circuit, and widely used scheme is around contact bridge 7 equipped electric arcs restriction cages 7.In this configuration, for the guiding at the strutting piece 4 of cage 7 interior execution bridges 3, might use the putter type element.This device is for example put down in writing in file EP1074030, FR2811471, EP1687835 or EP0556109.
Then the sub-component of putting at the bridge location that opens circuit that obtains by this way comprises at least four elements, they can relative to each other move, and these four elements are: bridge strutting piece 4 and the bridge 3 of the mechanical movement of electric arc restriction cage 7, contact spring 5, execution open and close are own.This framework provides multiple assurance and has been confirmed aspect effect, although its size is little, especially for specified situation less than 10A, but it need between strutting piece, bridge and cage, guide, and also need the protection of spring.Dimensional tolerance between each element must be little, and all above-mentionedly are proved to be complicated and expensive by engaging assembling process.
The utility model content
Except other advantages, the purpose of this utility model is to alleviate by the installation of simplifying sub-component the shortcoming of existing contact bridge device, guarantees simultaneously the restriction of electric arc and the protection of compression spring.
Especially, according to one of them feature, the utility model relates to electric equipment, and this electric equipment comprises at least one pair of fixed contact that is associated with contact bridge, this contact bridge is so that fixed contact can be connected to each other, and this contact bridge moves in the mode of the direction quadrature translation that limits with fixed contact.
Comprise band or the electric conductor of rod type and the electric arc limiting structure of insulation according to bridge of the present utility model in the mode of integral body, this electric conductor is provided with contact pads in its end, and this contact pads can be made by pottery.Described electric arc limiting structure comprises wall at least, and described wall becomes with conductor laterally at the At The Height of each contact pads, is orthogonal to conductor in sufficiently long distance and extends, so that fixed contact is lived by this structural frames at an arbitrary position.Advantageously, this structure forms U-shaped, the fixing electric conductor in the bottom of this U-shaped, and fixing for example is to be fastened in the suitable ledge (prong) by clip.
Mixing contact bridge moves by the surface that suitable device is orthogonal to electric conductor.Advantageously, guiding device is arranged on the structure of insulation, and for example, the exterior protrusions of the work that matches with the groove of housing can be guaranteed the reliability of system.
Bridge is associated with compression spring, and this compression spring usually act as bridge is biased into make position.On the bridge, setting device on the insulation system at the At The Height of the diapire of the U-shaped relative with conductor preferably, to realize direct effect.This spring section is engaged in the suitable accommodation section of electrical equipment shell, between the fixedly diapire and contact bridge of accommodation section.Preferably, in any position, the spring accommodation section separates by its sidewall and by limiting structure.Especially, this limiting structure can comprise the alar part with the edge mate of accommodation section, with closed accommodation section, and the motion of restriction bridge.This cooperation can realize by forced engagement or by buckle or by clamp fastening.
According to another feature, the utility model relates to above-mentioned contact bridge, this contact bridge is designed to have the electric switch equipment of translation double-break, comprise and form banded conducting element and the limiting structure that is formed by insulating material, described conducting element has two contact pads in the end on first surface, described limiting structure comprises sidewall, this sidewall is substantially perpendicular to described first surface extension in every side of two contact pads at least, it is characterized in that described limiting structure is secured on the conducting element of contact bridge with fixed form.
Described limiting structure is roughly U-shaped, has two perpendicular to the sidewall of diapire, and described diapire is fastened on the conducting element with fixed form.
The sidewall of the limiting structure of described U-shaped comprises ledge, and conducting element is forced to be engaged in the ledge of this limiting structure.
The diapire of the limiting structure of described U-shaped comprises structure on the surface relative with first surface, and this structural design is the work that matches with compression spring.
Described sidewall comprises guiding device, this guiding device sidewall on the surface of U-shaped limiting structure outside, be designed to be formed on the housing that holds described bridge on compensation device operate with matching.
According to another feature, the utility model relates to a kind of electric switch equipment, comprises housing, and this housing comprises at least two fixed contacts and above-mentioned contact bridge, this contact bridge can be taked primary importance and the second place, in described primary importance, described two contact pads and fixed contact are separated, and in the described second place, fixed contact is electrically connected by the conducting element of described contact bridge, wherein, regardless of the relative position of described contact bridge, the limiting structure of described contact bridge all centers on described fixed contact.
Also comprise compression spring, this compression spring and described contact bridge cooperating, contact bridge is biased into the closed second place, an end of described compression spring is connected to the standing part of described housing, and the other end is connected to described contact bridge.
Described housing comprises the accommodation section for spring, and the described accommodation section work that matches with described contact bridge is so that regardless of the relative position of described contact bridge, described spring is isolated in the described accommodation section.
Described housing comprises the guiding device of the limiting structure of contact bridge, and described limiting structure comprises compensation device.
Described housing comprises be used to the device that limits described contact bridge motion.
Description of drawings
Other advantages and feature will become clearer from the description of following particular implementation of the present utility model, this particular implementation provides for the purpose of explaining, and never take restriction embodiment as purpose, and shown in the drawings.
Fig. 1 illustrates switchgear in the mode of illustrating as has already been described, wherein can be equipped with according to contact bridge of the present utility model;
Fig. 2 illustrates contact bridge according to execution mode of the present utility model with the cross section along conductor;
Fig. 3 illustrates contact bridge according to execution mode of the present utility model in the mode of quadrature cross section.
Embodiment
According to the utility model, contact bridge 10 itself is designed to be able to the electric arc restriction.Especially, bridge 10 comprises and is essentially band or the bar type conducting element 12 that is, this conducting element 12 is provided with contact pads 16 in its end at first surface 14, be associated with limiting wall 18, this limiting wall 18 is made by insulating material, at least extend the bridge 10(that equals at least contact pads 16 and the fixed contact 6 of equipment 1 regardless of relative position at the At The Height of contact pads 16 perpendicular to surface 14, or open or closed) height of the distance of separating.
According to the preferred implementation shown in Fig. 2 or 3, by insulating material, to make and for example be fixed to by clamp fastening on the conductor 12 at the restriction cage 20 that extends with conductive strips 12 similar length such as polyamide 6, the quadrature cross section of this restriction cage 20 is roughly U-shaped.Especially, the ledge 22 that adapts with the width of conducting element 12 can be arranged on the sidewall 18, towards the bottom of U-shaped.
In addition, depend on the scope of electric equipment, electric conducting material can be arranged on the bottom of restriction U-shaped that perhaps two side 18 can be added around conducting rod by clamp fastening and/or any other mode.The wall 18 of limiting structure 20 can be rectangular shape, perhaps whether has differing heights in the face of the center of contact pads 16 or bridge 10 according to them.
Be formed with the assembly of movable contact bridge 10 as in any switchgear, being biased on the fixed contact 6 by compression spring 24.In a preferred embodiment, spring 24 acts directly on the restriction cage 20 that comprises appropriate device 26, and this spring 24 is placed in the suitable accommodation section 8 of housing 2 of equipment 1, to be protected.Contact bridge 10 can comprise the device that is used for spacer spring 24 with accommodation section 8 complementations of described spring, for example is orthogonal to the tube element 26 that direction that bridge 10 limits is extended, and is on the apparent surface with the first surface 14 of supports contacts pad 16.Alternately, as shown in Figure 3, the accommodation section 8 of compression spring 24 comprises the device 9 that how all to keep described accommodation section 8 sealings for the position of contact bridge 10, for example, the 8 one group of interior edge 9, accommodation section that are associated with the outstanding alar part 28 of restriction cage 20 guarantee that spring 24 is between the bottom and contact bridge 10 of housing 2, in accommodation section 8.By so being positioned at the outside, zone of opening circuit, spring 24 can be protected and avoid damaging.
When being triggered when opening circuit, contact bridge 10 is biased into to be opened, and compression pressure spring 24(Fig. 2).Advantageously, except the accommodation section 8 of the spring 24 that plays guide function, guide element 30 is engaged in the cage 20 of bridge 10, in order to guarantee that bridge 10 is orthogonal to first surface and moves.Especially, groove can be in housing 2 interior formation, and the projection 30 of injection molding type can be formed on the outer surface of sidewall 18 of cage 20, preferably at the center, at the At The Height of compression spring.
In order to keep this assembly to put in place, preferably the wall 18 of the cage 20 of bridge 10 comprises the element that makes bridge 10 can remain on reliably housing 2 inboards, for example also carry out cross-clip 30 or the above-mentioned outstanding alar part 28 of guiding, prevent that contact bridge 10 from surpassing the position that it can occupy between open and close.
According to scheme of the present utility model, by means of the element 10 of one, thus so that transmit the function of utmost point tensile force (push rod) and the function of electric arc restriction is obtained.The guidance function of bridge strutting piece is delivered to the housing 2 of electric equipment 1, and the function of any damage that causes as the switching that prevents contact spring 24, it is positioned at outside the zone of opening circuit.This design is beneficial to assembling simultaneously so that the production cost of product is minimized, and this assembling is undertaken by stacking part simply.
In preferred embodiment, the cooperation that forms the assembly of contact bridge 10 has confirmed very simple in fact.Can be provided with the conductive strips 12 that are coated with silver-colored electrical contact pad 16 and be inserted into the center of U-shaped insulated part 20, and be stuck on the latter's the bottom.This assembly direction that it moves when the operation of generation 1 basically is inserted in the housing 2 of switchgear 1, and compression spring 24 is engaged in the suitable accommodation section 8 in advance or simultaneously.When this operation was performed, horizontal clamp 9,30 was by toning, and executive module 10 fixing in housing 2.
Although the switchgear with reference to the circuit breaker type is described the utility model, the utility model is not limited to this.Other elements also can contemplate by the utility model.But the utility model is particularly useful for the equipment of GV type,, has the thermomagnetion circuit breaker of translation double-break that is, especially for the small rated currents that is lower than 10A.
Claims (10)
1. a movable contact bridge (10), this contact bridge (10) is designed to have the electric switch equipment (1) of translation double-break, comprise and form banded conducting element (12) and the limiting structure (20) that is formed by insulating material, described conducting element upward has two contact pads (16) at first surface (14) in the end, described limiting structure (20) comprises sidewall (18), this sidewall (18) is substantially perpendicular to described first surface (14) extension in every side of two contact pads (16) at least, it is characterized in that described limiting structure (20) is secured on the conducting element (12) of contact bridge (10) with fixed form.
2. contact bridge as claimed in claim 1 is characterized in that, described limiting structure (20) is roughly U-shaped, has two sidewalls perpendicular to diapire (18), and described diapire is fastened on the conducting element (12) with fixed form.
3. contact bridge as claimed in claim 2 is characterized in that, the sidewall (18) of the limiting structure of described U-shaped (20) comprises ledge (22), and conducting element (12) is forced to be engaged in the ledge (22) of this limiting structure (20).
4. contact bridge as claimed in claim 2 or claim 3 is characterized in that the diapire of the limiting structure of described U-shaped (20) comprises structure (26) on the surface relative with first surface (14), and this structural design is the work that matches with compression spring (24).
5. contact bridge as claimed in claim 2 or claim 3, it is characterized in that, described sidewall (18) comprises guiding device (28,30), this guiding device (28,30) sidewall (18) on the surface of U-shaped limiting structure outside, be designed to be formed on the housing (2) that holds described contact bridge (10) on compensation device (9) operate with matching.
6. an electric switch equipment (1), comprise housing (2), it is characterized in that, this housing (2) comprises at least two fixed contacts (6) and such as each described contact bridge (10) in the claim 1 to 5, this contact bridge (10) can be taked primary importance and the second place, in described primary importance, described two contact pads (16) are separated with fixed contact (6), and in the described second place, fixed contact (6) is electrically connected by the conducting element (12) of described contact bridge (10), wherein, regardless of the relative position of described contact bridge (10), the limiting structure (20) of described contact bridge (10) all centers on described fixed contact (6).
7. equipment as claimed in claim 6, it is characterized in that, also comprise compression spring (24), this compression spring and described contact bridge (10) cooperating, contact bridge (10) is biased into the closed second place, one end of described compression spring (24) is connected to the standing part of described housing (2), and the other end is connected to described contact bridge (10).
8. equipment as claimed in claim 7, it is characterized in that, described housing (2) comprises the accommodation section (8) for spring (24), work matches with described contact bridge (10) in described accommodation section (8), so that regardless of the relative position of described contact bridge (10), described spring (24) is isolated in the described accommodation section (8).
9. such as each described equipment in the claim 6 to 8, it is characterized in that described housing (2) comprises the guiding device of the limiting structure (20) of contact bridge (10), and described limiting structure (20) comprises compensation device (28,30).
10. such as each described equipment in the claim 6 to 8, it is characterized in that described housing (2) comprises be used to the device that limits described contact bridge (10) motion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1100948A FR2973559B1 (en) | 2011-03-31 | 2011-03-31 | MOBILE CONTACT BRIDGE |
| FR11/00948 | 2011-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202816837U true CN202816837U (en) | 2013-03-20 |
Family
ID=44119648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220118601 Expired - Lifetime CN202816837U (en) | 2011-03-31 | 2012-03-27 | A movable contact bridge and an electric switch device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202816837U (en) |
| FR (1) | FR2973559B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109961986A (en) * | 2017-12-14 | 2019-07-02 | 施耐德电器工业公司 | Electrical equipment for the electric current in foundation or disconnecting circuit |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183438B (en) * | 2014-04-11 | 2017-02-08 | 于静 | Intelligent control and protection device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2001513A (en) * | 1933-06-27 | 1935-05-14 | Gen Electric | Circuit breaker |
| US2319906A (en) * | 1941-03-19 | 1943-05-25 | Trumbull Electric Mfg Co | Contact mechanism for electric switches |
| US2956135A (en) * | 1957-01-18 | 1960-10-11 | Clark Controller Co | Hand operated switch |
| DE3033668C2 (en) * | 1980-09-06 | 1983-12-15 | Starkstrom Gummersbach GmbH, 5277 Marienheide | Contact device for low-voltage switching devices, in particular contactors |
| FR2813988B1 (en) * | 2000-09-08 | 2003-10-17 | Schneider Electric Ind Sa | SWITCHING DEVICE FOR A SWITCHING APPARATUS |
| FR2859816B1 (en) * | 2003-09-11 | 2006-04-07 | Legrand Sa | ELECTRIC CURRENT CUTTING DEVICE WITH COMPLETE DISCRIMINATION OF STATES |
| DE10356271B4 (en) * | 2003-11-28 | 2008-02-14 | Siemens Ag | switchgear |
| DE102007015793B4 (en) * | 2007-03-30 | 2009-02-05 | Siemens Ag | Contact slide unit for a switching unit, in particular a circuit breaker. |
-
2011
- 2011-03-31 FR FR1100948A patent/FR2973559B1/en active Active
-
2012
- 2012-03-27 CN CN 201220118601 patent/CN202816837U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109961986A (en) * | 2017-12-14 | 2019-07-02 | 施耐德电器工业公司 | Electrical equipment for the electric current in foundation or disconnecting circuit |
| CN109961986B (en) * | 2017-12-14 | 2023-03-21 | 施耐德电器工业公司 | Electrical device for establishing or breaking a current in an electrical circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2973559B1 (en) | 2013-03-29 |
| FR2973559A1 (en) | 2012-10-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |
|
| CX01 | Expiry of patent term |