CN1391700A - Improved low-voltage power circuit breaker - Google Patents
Improved low-voltage power circuit breaker Download PDFInfo
- Publication number
- CN1391700A CN1391700A CN00816027.9A CN00816027A CN1391700A CN 1391700 A CN1391700 A CN 1391700A CN 00816027 A CN00816027 A CN 00816027A CN 1391700 A CN1391700 A CN 1391700A
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- power circuit
- voltage power
- low
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000008878 coupling Effects 0.000 claims abstract description 12
- 238000010168 coupling process Methods 0.000 claims abstract description 12
- 238000005859 coupling reaction Methods 0.000 claims abstract description 12
- 230000001681 protective effect Effects 0.000 claims description 38
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 10
- 230000009471 action Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000002547 anomalous effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009933 burial Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- 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
- H01H71/0228—Mounting or assembling the different parts of the circuit breaker having provisions for interchangeable or replaceable parts
-
- 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
- H01H71/025—Constructional details of housings or casings not concerning the mounting or assembly of the different internal parts
-
- 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
- H01H71/1009—Interconnected mechanisms
-
- 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
- H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
Landscapes
- Breakers (AREA)
- Control Of Eletrric Generators (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
A low-voltage power circuit breaker, comprising a first casing, which accomodates one or more electric poles and corresponding actuation means, and a second casing, which accommodates means for protecting the circuit breaker, the particularity of the circuit breaker being the fact that the first and second casings comprise direct coupling means which are suitable to connect the first and second casings in a modular manner.
Description
Technical field
The present invention relates to a kind of low-voltage power circuit breaker, it has improved constructional characteristic.More particularly, the present invention relates to a kind of low-voltage power circuit breaker with modular construction, described modular structure make its installation and use quite easy.
Background technology
It is in the industrial electrical systems of feature that the known low-pressure power circuit breaker is used in high relatively electric current and electric pressure.Its special function is to guarantee the connection of load and disconnection and avoid anomalous event (for example overload or short circuit) for a required load current value.
The connection of load and disconnection are that the action owing to a movement device takes place, this movement device is connected to the movable contact that is present in each electrode of circuit breaker in operation, when difference ON/OFF circuit-breaker, this movement device moves the movable contact in each electrode, causes they and the separating/be connected of fixed contact accordingly.
Make circuit breaker avoid the protection of anomalous event to take place in the mode of automatic shutoff circuit usually; this is to be guaranteed by a special protective device; if electric current has surpassed a preset value; this protective device can send a fault-signal to a releasing device, and this releasing device is carried out the disconnection of the movable contact of each electrode by suitable kinematic system.This fact causes circuit-breaker to work as fault current inverse time time-delay automatic disconnection with proper proportion when producing.
These protective devices are commonly called protection relay.
Known, the very urgent demand of low-voltage power circuit breaker manufacturer is the replaceability that guarantees the protective device that circuit-breaker was equipped with.In fact; this brings suitable advantage; for example: using is that the protective device deallocation that different rated current set in advance is equipped with the feasible manufacturing step of simplifying of a kind of possibility of circuit-breaker; increase the possibility of the response market demand; and simplify any variation of the rated current of designated user/load, even electric system/distribution board is mounted.
Some constructive solutions that solve this demand of prior art are known, and these solutions are usually directed to large-sized relatively circuit-breaker, for example, and their corresponding 250A or more rated current (width is 105mm or more circuit-breaker).Referring to Fig. 1 and Fig. 2, some are used for the constructive solution of the circuit-breaker of this type can be in sight.Automatic circuit breaker 1 comprises a main body 2, wherein accommodates three electrodes of a cover, the movement device of circuit-breaker, and releasing device, and they all formerly are described and are not shown in the drawings.Second shell 3 that holds the circuit-breaker protective device also is noticeable.
In the known solution shown in Fig. 1, in main body 2, hold protective device 3.If so, the action need that second shell 3 is connected to main body 2 is dismantled the previous section 5 of circuit-breaker main body by using screw or other dismountable installation elements 4.
In the known solution shown in Fig. 2, shell 3 externally is connected to the bottom of circuit-breaker 2 main bodys.This connection is again by using screw or other dismountable installation elements to finish.
The solution that is proposed among Fig. 1 and Fig. 2 is characterized in having some shortcomings when reaching the target why they be equipped with.
Screw or other dismountable installation elements are used to usually so that protective device is connected on the main body of circuit-breaker.Installing or replacing in the process of protective device, this brings sizable waste of time.Provide the appropriate location to make the space that can be used for holding protective device dwindle with the demand of inserting screw or other dismountable installation elements.This situation limits the possibility of replacing certain type protective device (for example electronic relay) with another kind of dissimilar protective device (for example magnetic heat (magnetothermal) relay) significantly.
Therefore, the needs of the electric system that inserts according to it, make circuit-breaker best performanceization possibility thereby reduced quite a lot ofly.
In less power circuit breaker, for example be used for one 160 amperes or littler rated current (width of circuit-breaker is 90mm or littler), the possibility of the replaceability of assurance protective device is limited further.In order to replace protective device, in fact, need dismantle the main body of circuit-breaker usually fully.User or retailer can not finish this operation easily, unless need professional's intervention.This brings the increase of the intervention cost of sizable replacement protective device.
In addition, the retailer of circuit-breaker in order to satisfy its client's different demands, must keep a large amount of circuit-breakers to be in stock, they each be appropriate to dissimilar protective devices.
Summary of the invention
The purpose of this invention is to provide a kind of low-voltage power circuit breaker, it allows to replace protective device very simply, does not need professional's intervention.
In the scope of this purpose, an object of the present invention is to provide a kind of low-voltage power circuit breaker, it allows with modular mode and does not need to use screw or other dismountable installation elements that protective device is connected to circuit-breaker.
Another object of the present invention provides a kind of low-voltage power circuit breaker, even its allow to replace protective device for less circuit-breaker (160 amperes or littler rated current or width be 90mm or littler circuit-breaker).
Another object of the present invention provides a kind of low-voltage power circuit breaker, it allow dissimilar protective devices simple replacement, particularly electronics, electromagnetism, magnetic heat (magnetothermal) type or the like.
Thereby, the invention provides a kind of low-voltage power circuit breaker, it comprises first shell that holds at least one electrode, this electrode comprises at least one fixed contact and a movable contact, when low-voltage power circuit breaker closure/opening operation, this movable contact is connected/separates with described fixed contact.First shell further is contained in the movement device that is connected to movable contact in the operation, and when low-voltage power circuit breaker closure/opening operation, storing apparatus provides with described fixed contact to movable contact and is connected/separates required energy.
Low-voltage power circuit breaker among the present invention further comprises one second shell, and it holds and is used to protect low-voltage power circuit breaker to avoid the protective device of unusual circumstances.
The characteristics of the low-voltage power circuit breaker among the present invention are that first shell and/or second shell comprise the direct coupling means that is suitable for connecting with modular mode first shell and second shell.
Low-voltage power circuit breaker among the present invention has the following advantages, it has modular construction (assembly by first shell and second shell constitutes), because be assembly, except those provided the required installation elements of electrical connection, it did not need to use screw or other dismountable installation elements.Therefore, the low-voltage power circuit breaker among the present invention allows to install in a simple manner, especially replaces protective device, and does not need professional's intervention.
Description of drawings
Further characteristics of low-voltage power circuit breaker among the present invention and advantage will preferably but be not that the description of unique embodiment becomes obviously only be furnished with cut line in the mode of unrestricted embodiment by one, in the accompanying drawings, and wherein:
Fig. 1 is the schematic diagram of a known large-sized relatively low-voltage power circuit breaker;
Fig. 2 is the schematic diagram of another known large-sized relatively low-voltage power circuit breaker;
Fig. 3 is the schematic diagram of a preferred embodiment of the low-voltage power circuit breaker among the present invention; With
Fig. 4 is the detail drawing of the preferred embodiment of the low-voltage power circuit breaker among the present invention shown in Fig. 3.
Embodiment
A preferred embodiment of the low-voltage power circuit breaker among the present invention is to be described with reference to figure 3.
Low-voltage power circuit breaker by Reference numeral 12 demarcation, comprise one first shell 11, advantageously make by insulating material, it holds (preferred three at one or more electrodes, not shown), each electrode comprises at least one fixed contact and a movable contact (not shown), and they can be bonded with each other.Shell 11 also is included in the movement device (not shown) of the movable contact that is connected to each electrode in the operation, this movement device preferably includes an action equipment, it is suitable for when low-voltage power circuit breaker closure/opening operation, and the mode by kinematic chain provides mobile movable contact required energy.This first shell 11 also comprises the release actuation means (not shown), and it is suitable for responding an electric fault signal and causes that movable contact from corresponding fixed contact separately.This release actuation means can be separated physically with foregoing movement device; If so, they advantageously constitute (advantageously electromagnet-type) by one or more release devices, and they can respond an electric fault signal, for example by the action of a preloaded spring, cause the separation of electrical contact in the time of presetting.Perhaps, this release actuation means and movement device physically can be combined, and when the electric fault signal is received, this release actuation means causes the interference of movement device, move the kinematic chain that is connected to movable contact in operation.
Low-voltage power circuit breaker among the present invention also comprises one second shell 13, is advantageously made by insulating material, and it holds and is used to protect low-voltage power circuit breaker to avoid the protective device of unusual circumstances.This protective device for example is electrically connected to release actuation means recited above by screw 16, and is suitable for sending an electric fault signal to them.In fact, when electric current surpassed a preset value, protective device sent an electric fault signal to release actuation means, separated electrical contact (action contact and fixed contact) automatically.The characteristic of the low-voltage power circuit breaker among the present invention is that first shell 11 and second shell 13 comprise direct coupling means 14, they are suitable for connecting shell 11 and shell 13 with modular mode, and the statement of " connecting with modular mode " is used in reference to the joint that two resolution elements (referring to shell 11 and shell 13 herein) needn't be carried out the change on any structure; The dismounting of this structural modification such as parts/re-assembly.
For the connection between shell 11 and the shell 13 is provided, this direct coupling means comprises the mechanical engagement device, and it does not need to use screw or other dismountable installation elements.
Preferably, this direct coupling means comprises one or more interlocking and sliding arrangements, and in another preferred embodiment, they have a plurality of insertion guide rails that can mutually combine.This can be noticed easily, for example referring to Fig. 4.The figure shows the interlocking and sliding arrangement that direct coupling means comprises one or more dovetail types.
As an alternative way, direct coupling means can comprise for example one or more snap-acting interlocking arrangements.
Because the existence of direct coupling means, according to the present invention, by optimal protective device, it is possible assembling power circuit breaker easily and promptly.The lacking of the screw of package shell 11 and shell 13 or other dismountable installation elements makes shell 13 inner available spaces have a mind to the free burial ground for the destitute to be increased.This allows to utilize identical shell to hold dissimilar protective devices easily, for example the protection relay of electromagnetism, magnetic heat (magnetothermal), electronics or the like type.
In this kind mode, the power circuit breaker among the present invention can be furnished with the protective device that is suitable for its operation most.
In addition, the protective device of replacing certain type with other dissimilar protective devices also becomes simply, in fact, extracts shell 13 and replace its (arrow 160) with another that comprises selected protective device just enough.
This allows the user to reduce the intervention cost that is used to install and/or revise circuit-breaker to a large extent.In addition, the retailer can reduce the quantity and the value of stock article largely when satisfying customer demand.At last, find, even the low-voltage power circuit breaker among the present invention allow to be replaced protective device for low relatively load current value, especially for 160 amperes or still less current value (width of circuit-breaker is 90mm or littler).This is owing to can be used for holding the use in the space of protective device in essence.This aspect flexibility and the meeting the market requirement is being a sizable advantage.
Among the present invention low-voltage power circuit breaker, therefore be interpreted as to allow most changes and change that they are all in the scope of the inventive concept.
In addition, all parts can also be replaced with element suitable on the other technologies.In fact, as long as they consistently have a specific purposes, material therefor and size can be according to demand with any form of state-of-art.
Claims (13)
1. a low-voltage power circuit breaker comprises:
One first shell, it holds:
At least one electrode, this electrode comprise at least one fixed contact and a movable contact, and when described low-voltage power circuit breaker closure/opening operation, described movable contact is connected/separates with described fixed contact; With
Be connected to the movement device of described movable contact in operation, when described low-voltage power circuit breaker closure/opening operation, described movement device provides with described fixed contact for described movable contact to be connected/to separate required energy; With
One second shell, it holds and is used to protect described low-voltage power circuit breaker to avoid the protective device of unusual circumstances;
It is characterized in that described first shell and/or described second shell comprise direct coupling means, described direct coupling means is suitable for connecting described first shell and described second shell with modular mode.
2. according to the low-voltage power circuit breaker described in the claim 1, it is characterized in that described first shell also holds release actuation means, described release actuation means is suitable for responding an electric fault signal and causes that described movable contact from described fixed contact separately.
3. according to the low-voltage power circuit breaker described in claim 1 and 2, it is characterized in that described protective device is electrically connected to described release actuation means, and be suitable for sending an electric fault signal to described release actuation means.
4. according to the low-voltage power circuit breaker described in above-mentioned one or more claims, it is characterized in that described direct coupling means comprises at least one interlocking and sliding arrangement.
5. according to the low-voltage power circuit breaker described in the claim 4, it is characterized in that described interlocking and sliding arrangement comprises a plurality of insertion guide rails that can mutually combine.
6. according to the low-voltage power circuit breaker described in the claim 5, it is characterized in that described interlocking and sliding arrangement is the dovetail type.
7. according to the low-voltage power circuit breaker described in one or more claims in the claim 1 to 3, it is characterized in that described direct coupling means comprises at least one snap-acting interlocking arrangement.
8. according to the low-voltage power circuit breaker described in above-mentioned one or more claims, it is characterized in that described first shell and described second shell made by insulating material.
9. according to the low-voltage power circuit breaker described in above-mentioned one or more claims, it is characterized in that described protective device comprises the protection relay of one or more electromagnet-type.
10. according to the low-voltage power circuit breaker described in one or more claims in the claim 1 to 8, it is characterized in that described protective device comprises the protection relay of one or more electronic type.
11., it is characterized in that described protective device comprises the protection relay of the hot type of one or more magnetic according to the low-voltage power circuit breaker described in one or more claims in the claim 1 to 8.
12., it is characterized in that load current value is 160 amperes or littler according to the low-voltage power circuit breaker described in above-mentioned one or more claims.
13. according to the low-voltage power circuit breaker described in one or more claims in the claim 1 to 11, the width that it is characterized in that described first and second shells is 90mm or littler.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT1999MI002448A IT1314086B1 (en) | 1999-11-23 | 1999-11-23 | LOW VOLTAGE POWER SWITCH. |
| ITMI99A002448 | 1999-11-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1391700A true CN1391700A (en) | 2003-01-15 |
Family
ID=11384007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00816027.9A Pending CN1391700A (en) | 1999-11-23 | 2000-10-24 | Improved low-voltage power circuit breaker |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1234317A1 (en) |
| CN (1) | CN1391700A (en) |
| AU (1) | AU1131801A (en) |
| IT (1) | IT1314086B1 (en) |
| WO (1) | WO2001039231A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2950476B1 (en) | 2009-09-18 | 2011-09-16 | Schneider Electric Ind Sas | ASSEMBLY OF MULTIPOLAR CUTTING DEVICE WITH DOUBLE ENVELOPE AND CIRCUIT BREAKER COMPRISING SAME |
| FR2950475B1 (en) | 2009-09-18 | 2011-09-16 | Schneider Electric Ind Sas | FUNCTIONAL SPACER FOR SEPARATING BULBS IN MULTIPOLAR CUTTING DEVICE, AND CIRCUIT BREAKER |
| US10505127B2 (en) | 2016-09-19 | 2019-12-10 | Universal Display Corporation | Organic electroluminescent materials and devices |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH614311A5 (en) * | 1978-01-04 | 1979-11-15 | Sprecher & Schuh Ag | Electrical switching contactor with an attached auxiliary switch |
| DE3642719A1 (en) * | 1986-12-13 | 1988-06-16 | Kloeckner Moeller Elektrizit | MANUAL CIRCUIT BREAKER |
| GB8713791D0 (en) * | 1987-06-12 | 1987-07-15 | Bicc Plc | Electric circuit breaking apparatus |
| GB9414869D0 (en) * | 1994-07-23 | 1994-09-14 | Delta Circuits Protection | Module for use with a circuit breaker |
| FR2759489B1 (en) * | 1997-02-12 | 1999-03-19 | Schneider Electric Sa | COMPOSABLE MULTIPOLAR ELECTRICAL APPARATUS |
-
1999
- 1999-11-23 IT IT1999MI002448A patent/IT1314086B1/en active
-
2000
- 2000-10-24 WO PCT/EP2000/005673 patent/WO2001039231A1/en not_active Application Discontinuation
- 2000-10-24 CN CN00816027.9A patent/CN1391700A/en active Pending
- 2000-10-24 AU AU11318/01A patent/AU1131801A/en not_active Abandoned
- 2000-10-24 EP EP00972653A patent/EP1234317A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| ITMI992448A1 (en) | 2001-05-23 |
| AU1131801A (en) | 2001-06-04 |
| WO2001039231A1 (en) | 2001-05-31 |
| EP1234317A1 (en) | 2002-08-28 |
| IT1314086B1 (en) | 2002-12-04 |
| ITMI992448A0 (en) | 1999-11-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |