CN107039216B - Rapid closing mechanism of residual current operated circuit breaker - Google Patents
Rapid closing mechanism of residual current operated circuit breaker Download PDFInfo
- Publication number
- CN107039216B CN107039216B CN201710462834.8A CN201710462834A CN107039216B CN 107039216 B CN107039216 B CN 107039216B CN 201710462834 A CN201710462834 A CN 201710462834A CN 107039216 B CN107039216 B CN 107039216B
- Authority
- CN
- China
- Prior art keywords
- quick
- closing lever
- moving contact
- handle
- closing
- 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
Images
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
- H01H5/04—Energy stored by deformation of elastic members
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a rapid closing mechanism of a residual current operated circuit breaker, which comprises a shell, a handle, a moving contact, a static contact and a quick closing lever, wherein the handle is arranged on the shell, the handle drives the moving contact to move towards the static contact to realize closing, the quick closing lever is arranged between the handle and the moving contact and is pivoted on the shell, the quick closing lever is matched with an elastic part and completes energy storage in the closing process, one end of the quick closing lever is a stopping part for supporting the moving contact, the other end of the quick closing lever is an unlocking part, and the handle is provided with a moving part corresponding to the unlocking part of the quick closing lever. The invention can push the moving contact to realize energy storage in the closing process of the moving contact and the static contact by adding the quick closing lever in the circuit breaker, and then release the moving contact so as to achieve the aim of quick closing, and has the advantages of reasonable structure, reliable closing and the like.
Description
Technical Field
The invention discloses a quick closing mechanism of a residual current operated circuit breaker, belonging to the technical field of circuit breaker manufacturing according to the division of an International Patent Classification (IPC).
Background
The residual current operated circuit breaker, also called leakage circuit breaker, its closing process is generally, the handle drives connecting rod and moving contact, realizes that the moving contact, static contact combined floodgate circular telegram, and the circuit breaker closing process is directly correlated with the speed or the dynamics of operating handle, at the combined floodgate (move the stationary contact closed) moment, because contact closing speed is slow or contact pressure is not enough often produce "striking sparks" phenomenon, influence product safety in utilization and reduce product life.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a quick closing mechanism of a residual current operated circuit breaker, wherein in the closing process, a movable contact is subjected to energy storage through a quick closing lever, and then the movable contact is quickly contacted with a fixed contact to realize the purpose of quick closing.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a quick closing mechanism of a residual current operated circuit breaker comprises a shell, a handle, a moving contact, a fixed contact and a quick closing lever, wherein the handle is arranged on the shell and drives the moving contact to move towards the fixed contact to realize closing;
when the handle moves to the quick closing lever to push against, the moving contact does not move to the fixed contact any more, the handle continues to move at the moment and transmits force to the moving contact and the elastic piece so as to realize energy storage, and when the moving part of the handle touches the releasing part of the quick closing lever and pushes against the quick closing lever, the moving contact moves to the direction of the fixed contact quickly, so that quick closing is realized.
Furthermore, the quick-closing lever is of an L-shaped structure, positioning holes are formed in the corners of the quick-closing lever and are installed on a pivoting shaft of the shell, two ends of the quick-closing lever can rotate around the pivoting shaft, the releasing portion of the quick-closing lever is touched by the handle moving portion and then rotates clockwise, the stopping portion of the quick-closing lever synchronously rotates to leave or stagger the moving contact, and the moving contact is accelerated to be closed with the fixed contact in an energy storage state.
Furthermore, the snap lever and the elastic piece are integrally formed, the tripping end of the snap lever extends upwards to form an elastic bent portion, the terminal of the elastic bent portion is fixed in the groove of the shell, and the terminal of the elastic bent portion forms a counter-force positioning point.
Furthermore, the handle is connected with the connecting rod through the U-shaped rod, the bottom of the connecting rod is connected with the moving contact, and the connecting rod and the moving contact are driven to move towards the direction of the static contact through the U-shaped rod when the handle is switched on.
Furthermore, the moving contact is provided with a blocking part to be matched with the locking part of the quick-closing lever, and the blocking part is arranged on one side of the moving contact.
Furthermore, the elastic piece is an energy storage spring and is arranged on a pivot shaft connecting the quick-closing lever and the shell.
The invention realizes energy storage by temporarily propping against the moving contact in the closing process of the moving contact and the static contact through adding the quick closing lever in the circuit breaker, and then releases the moving contact so as to achieve the aim of quick closing.
Drawings
FIG. 1 is a broken-away schematic view of an embodiment of the invention.
Fig. 2 is a close-up schematic of an embodiment of the invention.
Fig. 3 is a schematic view of a handle trip according to an embodiment of the present invention.
Fig. 4 is a schematic view of the quick-closing lever of the present invention.
Fig. 5 is a schematic view of the movable contact of the present invention.
FIG. 6 is a view of the disengaged position of the cooperating catch of the present invention.
FIG. 7 is a view of the mated latch of the present invention in a closed position.
Fig. 8 is a graph of closing force versus final pressure for the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
example (b): referring to fig. 1 to 7, a quick closing mechanism of a residual current operated circuit breaker includes a housing 1, a handle 2, a moving contact 3, a static contact 4 and a quick closing lever 5, wherein the handle 2 is disposed on the housing 1, the handle 2 drives the moving contact 3 to move toward the static contact 4 to realize closing, the quick closing lever 5 is disposed between the handle 2 and the moving contact 3, the quick closing lever 5 is connected or pivoted to the housing 1, the quick closing lever 5 is matched with an elastic member 51 and completes energy storage in a closing process, one end of the quick closing lever 5 is a stopping portion 52 for supporting the moving contact 3, the other end of the quick closing lever 5 is an unlocking portion 53, and the handle 2 is provided with an actuating portion or a moving portion 21 corresponding to the unlocking portion 53 of the quick closing lever 5;
when the switch is closed, the handle 2 drives the movable contact 3 to move towards the fixed contact 4, when the movable contact 3 moves to the fast closing lever 5 to be abutted, the distance between the movable contact and the fixed contact is 1-2 mm, the movable contact and the fixed contact are preferably limited to be 1.5mm, the movable contact 3 does not move towards the fixed contact 4 any more, the handle 2 continues to move at the moment and transmits force to the movable contact and the elastic part 51 to realize energy storage, and when the handle actuating part or the moving part 21 touches the fast closing lever tripping part 53 and abuts against the fast closing lever, the movable contact 3 quickly moves towards the fixed contact 4, so that the fast closing is realized. The quick-closing lever 5 is in an L-shaped structure, the positioning hole 54 is formed in the corner of the quick-closing lever 5 and is installed on the pivoting shaft 540 of the shell 1, two ends of the quick-closing lever 5 can rotate around the pivoting shaft, the releasing part 53 of the quick-closing lever 5 rotates clockwise after being touched by the handle actuating part or the moving part 21, the stopping part 52 of the quick-closing lever 5 rotates synchronously to leave or stagger the moving contact 3, and the moving contact 3 is accelerated to be closed with the static contact 4 in an energy storage state. In this embodiment, the snap lever 5 and the elastic member 51 are integrally formed, the releasing end of the snap lever 5 extends upward to form an elastic bending portion, the terminal of the elastic bending portion is fixed in the groove of the housing 1, and the terminal of the elastic bending portion forms a counter force positioning point 510. A handle 2 is connected with a connecting rod 7 through a U-shaped rod 6, the connecting rod 7 is pivoted on a shell 1 and can rotate around the pivoting position, the bottom of the connecting rod 7 is connected with a moving contact 3, the connecting rod and the moving contact are driven to move towards the direction of a static contact through the U-shaped rod when the handle 2 is switched on, and a lock catch 8 is arranged on one side of the connecting rod 7. The movable contact 3 has a stop portion 31 for cooperating with the snap lever stop portion 52, and the stop portion 31 is disposed on one side of the movable contact.
The connecting rod 7 of the present invention may be any type of connecting member, such as a plate member. The shell 1 of the invention comprises an upper shell, a base and a lower shell, and the shell also comprises other components of the circuit breaker, such as an electromagnetic mechanism, a tripping mechanism and the like.
Fig. 8 is a graph of closing force versus final pressure during closing of an embodiment of the present invention, wherein the red curve is the closing force and the blue curve is the final pressure. After the energy storage is finished, the fast closing lever is separated from the moving contact to reach the maximum value, and then the moving contact is fast closed to start to generate final pressure.
The process of closing the handle comprises the following steps:
starting to close, the moving contact 3 moves towards the static contact 4;
when the quick-closing lever 5 is moved to abut against the moving contact, the moving contact does not move to the fixed contact any more, so that energy storage is realized;
until the handle 2 acts on the quick-closing lever point (the actuating part or the moving part 21) to contact with the quick-closing lever (the tripping part 53) and push the quick-closing lever open, the moving contact moves towards the direction of the static contact quickly, thereby realizing the effect of quick closing.
According to the invention, the quick closing lever 5 is additionally arranged in the circuit breaker, the moving contact is temporarily propped against the moving contact to realize energy storage in the closing process of the moving contact and the static contact, and then the moving contact is released to achieve the purpose of quick closing.
In another embodiment of the present invention, the elastic element of the quick-closing lever is an energy storage spring or an elastic element with a function similar to that of the energy storage spring, the elastic element is disposed on the pivot shaft connecting the quick-closing lever and the housing, and other structures are the same as the above embodiments.
The above description is only an embodiment utilizing the technical content of the present disclosure, and any modification and variation made by those skilled in the art can be covered by the claims of the present disclosure, and not limited to the embodiments disclosed.
Claims (6)
1. The utility model provides a residual current operated circuit breaker quick closing mechanism which characterized in that: the quick-closing device comprises a shell, a handle, a moving contact, a fixed contact and a quick-closing lever, wherein the handle is arranged on the shell, the handle drives the moving contact to move towards the fixed contact to realize closing, the quick-closing lever is arranged between the handle and the moving contact, the quick-closing lever is pivoted on the shell, the quick-closing lever is matched with an elastic part and completes energy storage in the closing process, one end of the quick-closing lever is a stopping part and is used for propping against the moving contact, the other end of the quick-closing lever is an tripping part, an actuating part is arranged on the handle and corresponds to the tripping part of the quick-closing lever, the quick-closing lever and the elastic part are integrally formed, the tripping end of the quick-closing lever extends upwards to form an elastic bent part serving as the elastic;
the handle is connected with a connecting rod through a U-shaped rod, the connecting rod is pivoted on the shell and can rotate around the pivoting position, and the bottom of the connecting rod is connected with the moving contact;
the pivoting position of the quick-closing lever and the shell and the pivoting position of the connecting rod and the shell are provided with intervals.
2. A residual current operated circuit breaker quick close mechanism as claimed in claim 1, wherein: when the handle is closed, the handle drives the moving contact to move towards the fixed contact, when the moving contact moves to the point where the quick-closing lever abuts against the moving contact, the moving contact does not move towards the fixed contact any more, at the moment, the handle continues to move and transmits force to the quick-closing lever and the elastic piece so as to realize energy storage, and when the handle actuating portion touches the quick-closing lever tripping portion and abuts against the quick-closing lever, the moving contact quickly moves towards the fixed contact, so that quick closing is realized.
3. A residual current operated circuit breaker quick close mechanism as claimed in claim 1, wherein: the quick-closing lever is of an L-shaped structure, positioning holes are formed in the corners of the quick-closing lever and are installed on a pivoting shaft of the shell, two ends of the quick-closing lever can rotate around the pivoting shaft, a releasing portion of the quick-closing lever rotates clockwise after being touched by a handle actuating portion, a stopping portion of the quick-closing lever rotates synchronously to stagger moving contacts, and the moving contacts are accelerated to be closed with static contacts in an energy storage state.
4. A residual current operated circuit breaker quick close mechanism as claimed in any one of claims 1 to 3 wherein: the terminal end of the elastic bent portion is fixed in the groove of the shell to form a positioning point for providing a counter force.
5. A residual current operated circuit breaker quick close mechanism as claimed in claim 1, wherein: when the handle is switched on, the connecting rod and the moving contact are driven by the U-shaped rod to move towards the direction of the fixed contact.
6. A residual current operated circuit breaker quick close mechanism as claimed in claim 3 wherein: the moving contact is provided with a blocking part to be matched with the locking part of the quick-closing lever, and the blocking part is arranged on one side of the moving contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710462834.8A CN107039216B (en) | 2017-06-19 | 2017-06-19 | Rapid closing mechanism of residual current operated circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710462834.8A CN107039216B (en) | 2017-06-19 | 2017-06-19 | Rapid closing mechanism of residual current operated circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107039216A CN107039216A (en) | 2017-08-11 |
| CN107039216B true CN107039216B (en) | 2020-09-01 |
Family
ID=59542462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710462834.8A Active CN107039216B (en) | 2017-06-19 | 2017-06-19 | Rapid closing mechanism of residual current operated circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107039216B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109979785B (en) * | 2019-03-22 | 2020-09-18 | 上海电器科学研究院 | Circuit breaker with closing energy storage mechanism |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2581791B1 (en) * | 1985-05-13 | 1988-11-04 | Merlin Gerin | MECHANISM FOR QUICK MANUAL CLOSING OF A CURRENT-BREAKING APPARATUS |
| FR2923943B1 (en) * | 2007-11-16 | 2010-01-01 | Schneider Electric Ind Sas | DEVICE FOR CONTROLLING AN ELECTRIC CUTTING APPARATUS, AND ELECTRIC CUTTING APPARATUS COMPRISING SAME |
| CN101335162A (en) * | 2008-08-05 | 2008-12-31 | 无锡唯特电气技术有限公司 | Fast closing mechanism of small circuit breaker |
| CN202651014U (en) * | 2012-03-31 | 2013-01-02 | 温州奥来电器有限公司 | High breaking energy storage dual-axis miniature circuit breaker |
| CN106847630B (en) * | 2017-04-13 | 2020-05-22 | 厦门宏发开关设备有限公司 | Moving contact quick-closing mechanism and circuit breaker with same |
| CN206774473U (en) * | 2017-06-19 | 2017-12-19 | 厦门宏发开关设备有限公司 | A kind of residual current action breaker fast closing mechanism |
-
2017
- 2017-06-19 CN CN201710462834.8A patent/CN107039216B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107039216A (en) | 2017-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2701829A (en) | Manually operable circuit breaker | |
| US9384913B2 (en) | Locking mechanism for a switch-on button of a circuit breaker | |
| WO2017020817A1 (en) | Circuit breaker tripping mechanism | |
| WO2015078415A1 (en) | Action mechanism for new electric leakage protection module | |
| CN203562378U (en) | Action mechanism of novel leakage protection module | |
| CN107039216B (en) | Rapid closing mechanism of residual current operated circuit breaker | |
| WO2017156978A1 (en) | Breaker | |
| GB1461217A (en) | Circuit breaker | |
| GB1407067A (en) | Circuit breakers | |
| WO2017020819A1 (en) | Circuit breaker interlocking apparatus | |
| GB712482A (en) | Improvements in and relating to automatic electric circuit breakers | |
| DE502007004431D1 (en) | INSTALLATION SWITCH WITH A DOUBLE INTERRUPT | |
| US2994753A (en) | Circuit breaker | |
| US3061698A (en) | Spring operated mechanism for electric circuit breakers | |
| US2636958A (en) | Circuit breaker | |
| CN112967910A (en) | Operating mechanism of circuit breaker | |
| CN220400508U (en) | Electromagnetic switching-on and switching-off mechanism and self-holding relay thereof | |
| CN217507237U (en) | Tripping mechanism for circuit breaker and circuit breaker | |
| US2809255A (en) | Circuit breaker | |
| CN216412988U (en) | Switching-on and switching-off mechanism for circuit breaker and circuit breaker | |
| CN111883396B (en) | Reset mechanism of magnetic flux release | |
| CN219936975U (en) | Small-sized breaker accessory | |
| US2757255A (en) | High-speed switch mechanism | |
| CN210296276U (en) | Tripping output force value amplifying mechanism and circuit breaker with same | |
| CN111863556B (en) | Auxiliary tripping unit of circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |