CN111900053A - Earth leakage protection actuating mechanism and splicing type circuit breaker - Google Patents
Earth leakage protection actuating mechanism and splicing type circuit breaker Download PDFInfo
- Publication number
- CN111900053A CN111900053A CN202010908832.9A CN202010908832A CN111900053A CN 111900053 A CN111900053 A CN 111900053A CN 202010908832 A CN202010908832 A CN 202010908832A CN 111900053 A CN111900053 A CN 111900053A
- Authority
- CN
- China
- Prior art keywords
- piece
- handle
- spring
- circuit breaker
- residual
- 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
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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic 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
- H01H71/50—Manual reset mechanisms which may be also used for manual release
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
The invention discloses a leakage protection actuating mechanism which comprises a reset piece (8), a lock catch (7), a jump buckle (5) and an actuating piece (6) which are sequentially connected, wherein the middle part of the jump buckle (5) is connected with a handle (3), the outside of the handle (3) is connected with a reset piece spring (13), and one side of the reset piece spring (13) is mutually attached to the reset piece (8). The invention can respectively realize the pushing of the release piece and the resetting of the magnetic ring component through the mutual linkage of the reset piece, the lock catch, the jump buckle and the executing piece after being pushed by the magnetic ring component, thereby being simultaneously suitable for an electronic release and an electromagnetic release and having the characteristics of high stability and good resetting effect.
Description
Technical Field
The invention relates to a circuit breaker, in particular to an electric leakage protection actuating mechanism and a splicing type circuit breaker.
Background
The circuit breaker generally comprises a contact system, an arc extinguishing system, an actuating mechanism and a release, when an external circuit has the problem of electric leakage or short circuit, the release acts to push a release piece in the actuating mechanism, and the moving contact and the static contact are separated from each other through the matching linkage of the actuating mechanism, so that the tripping of the circuit breaker is realized. The conventional release for the circuit breaker is divided into an electronic release and an electromagnetic release, wherein the electronic release is mainly used for leakage protection of the circuit breaker, and the electromagnetic release can only be used for short-circuit protection of the circuit breaker; however, compared with an electromagnetic release, the electronic release needs to be matched with an auxiliary power supply and a circuit board for use, so that the overall size of the leakage protection mechanism is increased, and the applicability of the circuit breaker is reduced.
The reason why the electromagnetic trip cannot be used as a circuit breaker leakage protection mechanism mainly comprises two aspects, on one hand, the tripping force generated by the electromagnetic circuit breaker under the action of leakage current is small, so that the electromagnetic circuit breaker is difficult to directly push an external execution mechanism to act, and the circuit breaker cannot be stably disconnected. On the other hand, the electromagnetic release is lack of a reset spring compared with an electronic release, so that the electromagnetic release needs to be reset from the outside after being ejected out, the resetting difficulty is high, and the electromagnetic release cannot be directly used for leakage protection of the circuit breaker. Therefore, there is a need for a circuit breaker leakage protection mechanism that can be adapted to an electromagnetic trip, thereby effectively improving the applicability of the circuit breaker and reducing the production cost thereof.
Disclosure of Invention
The invention aims to provide an electric leakage protection actuating mechanism and a splicing type circuit breaker. The electromagnetic tripper can be simultaneously suitable for an electronic tripper and an electromagnetic tripper and has the characteristics of high stability and good resetting effect.
The technical scheme of the invention is as follows: leakage protection actuating mechanism, including the piece that resets, hasp, jump knot and the executive component that connects gradually, jump and detain the middle part and be connected with the handle, the handle external connection has the piece spring that resets, and one side that resets the piece spring is laminated with the piece that resets each other.
Among the aforementioned earth leakage protection actuating mechanism, still include the base, handle, the piece that resets, hasp and executive component rotate respectively and connect on the base, handle, executive component and hasp outside all are connected with the driving piece.
In the leakage protection actuating mechanism, a handle spring is arranged between the handle and the base, an actuating member spring is arranged between the actuating member and the base, and a lock catch spring is arranged between the lock catch and the base.
In the leakage protection executing mechanism, the executing piece is provided with a linkage rod, one end of the jump buckle is rotatably connected to the linkage rod, and the jump buckle is provided with a jump buckle spring.
In the leakage protection actuating mechanism, the handle is connected with the jump buckle through the connecting rod, and the connecting position of the connecting rod and the jump buckle is positioned on one side of the rotating axis of the actuating piece far away from the linkage rod.
In the electric leakage protection actuating mechanism, the reset piece is provided with the push plate, the lock catch is provided with the transmission plate, and the push plate and the transmission plate are mutually attached.
In the leakage protection actuating mechanism, the handle is provided with a pressing block matched with the return piece spring.
In the leakage protection executing mechanism, a step groove is formed in one side of the lock catch, a buckling block is arranged at one end, far away from the executing piece, of the jump catch, and the buckling block and the step groove are buckled with each other.
In the leakage protection actuating mechanism, the middle of the lock catch is provided with the connecting shaft, the end part of the connecting shaft penetrates through the reset piece to extend to the outside, and the reset piece is provided with the limiting groove matched with the connecting shaft.
In the leakage protection actuating mechanism, an arc-shaped hole matched with the release piece is formed in one side of the base.
The spliced circuit breaker applying the leakage protection actuating mechanism comprises a cover body, wherein a bus bar is arranged in the cover body, one side of the bus bar is connected with a multi-pole circuit breaker, and the other side of the bus bar is provided with a magnetic ring assembly and the leakage protection actuating mechanism which are connected with each other; the tripping piece of the multi-pole circuit breaker extends into the electric leakage protection actuating mechanism.
Compared with the prior art, the invention has the following characteristics:
(1) according to the invention, through the resetting piece, the lock catch, the jump buckle and the executing piece which are sequentially connected, the magnetic ring component can push the resetting piece during electric leakage, and the resetting piece sequentially drives all the parts to be linked, so that the executing piece is driven to realize tripping action, and the electric leakage protection of the circuit breaker is realized; in the linkage process, the actuating mechanism can convert the thrust of the magnetic ring component into the elastic force generated by the driving part, so that the invention has enough thrust to drive the action of the release part to realize disconnection;
(2) when the multi-pole circuit breaker is tripped, the handle is matched with the reset piece spring to drive the reset piece to reset, so that the reset piece can push back the push-out part in the magnetic ring assembly again, the external reset of the electromagnetic release is realized, and the multi-pole circuit breaker can be simultaneously suitable for an electronic release and an electromagnetic release;
(3) through the optimization of the connection structure of each part, the stability of each part in action can be effectively improved, the obstruction caused by interference such as burrs, friction and the like is avoided, and the action stability of the invention in leakage protection and closing is effectively improved;
(4) under the cooperation, the leakage protection actuating mechanism can be independently arranged from the conventional multi-pole circuit breaker and can be spliced with the multi-pole circuit breaker for use, so that the assembly difficulty of the leakage protection actuating mechanism is effectively reduced, and the applicability of the leakage protection actuating mechanism is improved;
therefore, the invention can be simultaneously suitable for the electronic release and the electromagnetic release and has the characteristics of high stability and good reset effect.
Drawings
Fig. 1 is a schematic structural view of a spliced type circuit breaker;
FIG. 2 is a schematic diagram of the connection of the earth leakage actuator and the magnetic ring assembly;
fig. 3 is a schematic structural diagram of the earth leakage protection actuator in an open state of the circuit breaker;
fig. 4 is a schematic structural diagram of the earth leakage protection actuator in a closing state of the circuit breaker;
fig. 5 is an exploded view of the earth leakage protection actuator.
The labels in the figures are: 1-magnetic ring component, 2-base, 3-handle, 4-connecting rod, 5-jump buckle, 6-executive component, 7-lock buckle, 8-reset component, 9-handle spring, 10-executive component spring, 11-lock buckle spring, 12-jump buckle spring, 13-reset component spring, 14-cover body, 15-bus bar, 16-multi-pole circuit breaker, 301-pressing block, 501-locking block, 601-linkage rod, 701-driving plate, 702-step groove, 801-push plate and 802-limit groove.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
Examples are given. Earth leakage protection actuating mechanism constitutes as shown in fig. 1, including the piece that resets 8, hasp 7, jump and detain 5 and the executive component 6 that connect gradually, jump and detain 5 middle part and be connected with handle 3, handle 3 external connection has a spring 13 that resets, and one side of the spring 13 that resets is laminated with the piece 8 that resets each other.
Still include the base, handle 3, reset 8, hasp 7 and executive component 6 rotate respectively and connect on base 2, handle 3, executive component 6 and 7 outsides of hasp all are connected with the driving piece.
A handle spring 9 is arranged between the handle 3 and the base 2, the handle spring 9 provides a pre-tightening force in a counterclockwise direction (the rotation direction in the embodiment is based on the view direction of fig. 4) for the handle 3, an executing piece spring 10 is arranged between the executing piece 6 and the base 2, the executing piece spring 10 provides a pre-tightening force in a clockwise direction for the executing piece 6, a lock catch spring 11 is arranged between the lock catch 7 and the base 2, and the lock catch spring 11 provides a pre-tightening force in a clockwise direction for the lock catch 7.
The actuating member 6 is provided with a linkage rod 601, the linkage rod 601 is eccentrically arranged with an installation shaft of the actuating member 6, one end of the jump buckle 5 is rotatably connected to the linkage rod 601, and the jump buckle 5 is provided with a jump buckle spring 12 matched with the base 2.
The handle 3 is connected with the jump buckle 5 through the connecting rod 4, a gap is reserved at the connecting position of the connecting rod 4 and the jump buckle 5, and the connecting position of the connecting rod 4 and the jump buckle 5 is positioned on one side of the rotating axis of the executing piece 6 far away from the linkage rod 601.
Reset and be equipped with push pedal 801 on the piece 8, be equipped with driving plate 701 on the hasp 7, laminate each other between push pedal 801 and the driving plate 701.
The handle 3 is provided with a pressing block 301 matched with the return piece spring 13.
One side of the lock catch 7 is provided with a step groove 702, one end of the jump buckle 5, which is far away from the executing piece 6, is provided with a buckling block 501, and the buckling block 501 and the step groove 702 are buckled with each other.
The middle part of the lock catch 7 is provided with a connecting shaft which is rotatably connected to the base 2, the end part of the connecting shaft penetrates through the reset piece 8 to extend to the outside, and the reset piece 8 is provided with a limit groove 802 matched with the connecting shaft.
One side of the base 2 is provided with an arc-shaped hole matched with the fastening part, and the fastening part penetrates through the arc-shaped hole and extends to one side of the executing part 6.
The spliced circuit breaker applying the leakage protection actuating mechanism comprises a cover body 14, wherein a bus bar 15 is arranged in the cover body 14, one side of the bus bar 15 is connected with a multi-pole circuit breaker 16, the other side of the bus bar 15 is provided with a magnetic ring assembly 1 and the leakage protection actuating mechanism which are mutually connected, the ejection end of the magnetic ring assembly 1 is positioned at the upper end of the bottom of a reset piece 8, and the magnetic ring assembly 1 can be selected from a conventional electronic release or an electromagnetic release; the tripping piece of the multi-pole circuit breaker 16 extends into the earth leakage protection actuating mechanism, and the multi-pole circuit breaker 16 is a conventional circuit breaker with a tripping mechanism.
The working principle of the invention is as follows: the leakage protection actuator is connected with the magnetic ring assembly 1 and then is installed on a cover body 14 on one side of a multi-pole circuit breaker 16, and the multi-pole circuit breaker 16 is spliced on the cover body 14 through a bus bar 15, so that the leakage protection actuator and the multi-pole circuit breaker 16 are electrically connected through the bus bar 15. Simultaneously, the tripping part in the multi-pole circuit breaker 16 passes through the base 2 and extends into the arc hole on one side of the actuating part 6, so that the actuating part 6 can drive the tripping part to act when rotating clockwise, and the circuit breaker is disconnected.
When the external circuit has the electric leakage phenomenon, the magnetic ring assembly 1 vertically pushes out towards the reset piece 8 (arrow direction in fig. 4) downwards, so that the reset piece 8 rotates anticlockwise under the pushing effect; because the handle 3 is in the on position at this moment, the briquetting 301 can make the piece spring 13 that resets and reset 8 and be in the separation state through the pressfitting to can not cause the hindrance to the rotation that resets 8. After the reset piece 8 rotates, the push plate 801 at the upper end drives the lock catch 7 to make counterclockwise motion through the transmission plate 701, so that the step groove 702 is separated from the buckling state of the buckling block 501 and separated from each other. The buckling block 501 is released from the limit in the clockwise direction after being tripped, so that the tripping buckle 5 releases the limit on the actuating element 6, the elastic force generated by the spring 10 of the actuating element can directly drive the actuating element 6 to move clockwise and drive the tripping element to act, and the breaker is disconnected.
After the breaker is disconnected, the handle 3 moves anticlockwise under the action of the handle spring 9 to complete tripping action, so that the connecting rod 4 is driven to obliquely push the jump buckle 5 downwards towards the direction of the executing piece 6, the jump buckle 5 rotates in place along with the executing piece 6, then the jump buckle 5 is pulled back in the subsequent rotating process, the jump buckle 5 moves obliquely upwards, when the jump buckle 5 moves to the top position at the end far away from the buckling block 501, the jump buckle spring 12 can be mutually attached to the base 2 and limit one end of the jump buckle 5, the jump buckle 5 can move anticlockwise under the pulling action at one end of the buckling block 501, the buckling block 501 can extrude the buckling 7 under the resilience force and then enter the step groove 702 again, after the buckling 7 is extruded, the buckling spring back is rebounded under the resetting action of the buckling spring 11, and the step groove 702 and the buckling block 501 are in a buckling state again. Simultaneously, because handle 3 is when anticlockwise rotating, briquetting 301 can remove along with rotating and reset a spring 13 compresses tightly, makes reset a spring 13 can with reset 8 after kick-backing and contact each other and drive and reset 8 and be clockwise motion to make and reset 8 bottoms and can push back the position of releasing of magnetic ring subassembly 1 again after clockwise rotating, realize the reseing to magnetic ring subassembly 1. Through the steps, the push-to-open of the tripping piece and the external reset of the tripper can be respectively realized, so that the magnetic ring assembly 1 can be suitable for the electromagnetic tripper, and the size and the cost of the leakage protection actuating mechanism are effectively reduced.
When the circuit breaker is manually switched on and reset, the handle 3 is driven by the outside to move clockwise, so that the connecting rod 4 is driven to obliquely push the tripping buckle 5 downwards towards the direction of the executing piece 6; after the jump buckle 5 is pushed, because the buckling block 501 at one end is buckled and limited by the step groove 702 and cannot move, the rotating connecting end of the jump buckle 5 moves obliquely downwards along the anticlockwise rotating direction of the executing piece 6, so that the executing piece 6 is driven to rotate anticlockwise, the executing piece 6 is reset, and the executing piece spring 10 becomes a pre-tightening state again. After the handle 3 rotates to the switching-on position, the pressing block 301 presses the reset spring 13 to be separated from the reset element 8 and keeps an interval, so that the reset element 8 recovers to a free swing state again, and the reset effect is achieved.
Claims (10)
1. Electric leakage protection actuating mechanism, its characterized in that: including reset piece (8), hasp (7), jump knot (5) and executive component (6) that connect gradually, jump knot (5) middle part is connected with handle (3), and handle (3) external connection has a spring that resets (13), and one side of the spring that resets (13) is laminated with the piece that resets (8) each other.
2. A residual-current protection actuator according to claim 1, characterized in that: the handle (3), reset piece (8), hasp (7) and executive component (6) rotate respectively and connect on base (2), handle (3), executive component (6) and hasp (7) outside all are connected with the driving piece.
3. A residual-current protection actuator according to claim 2, characterized in that: be equipped with handle spring (9) between handle (3) and base (2), be equipped with executive spring (10) between executive (6) and base (2), be equipped with hasp spring (11) between hasp (7) and base (2).
4. A residual-current protection actuator according to claim 1, characterized in that: the actuating piece (6) is provided with a linkage rod (601), one end of the jump buckle (5) is rotatably connected to the linkage rod (601), and the jump buckle (5) is provided with a jump buckle spring (12).
5. A residual current protection actuator according to claim 4, characterized in that: the handle (3) is connected with the jump buckle (5) through the connecting rod (4), and the connecting part of the connecting rod (4) and the jump buckle (5) is positioned on one side of the rotating axis of the executing piece (6) far away from the linkage rod (601).
6. A residual-current protection actuator according to claim 1, characterized in that: reset and be equipped with push pedal (801) on piece (8), be equipped with driving plate (701) on hasp (7), laminate each other between push pedal (801) and driving plate (701).
7. A residual-current protection actuator according to claim 1, characterized in that: and a pressing block (301) matched with the reset piece spring (13) is arranged on the handle (3).
8. A residual-current protection actuator according to claim 1, characterized in that: one side of the lock catch (7) is provided with a step groove (702), one end of the jump buckle (5) far away from the executing piece (6) is provided with a buckling block (501), and the buckling block (501) and the step groove (702) are buckled with each other.
9. A residual-current protection actuator according to claim 1, characterized in that: the middle part of the lock catch (7) is provided with a connecting shaft, the end part of the connecting shaft penetrates through the reset piece (8) to extend to the outside, and the reset piece (8) is provided with a limiting groove (802) matched with the connecting shaft.
10. A splice circuit breaker using a residual current protection actuator as claimed in any one of claims 1 to 9, wherein: the leakage protection circuit breaker comprises a cover body (14), wherein a bus bar (15) is arranged in the cover body (14), one side of the bus bar (15) is connected with a multi-pole circuit breaker (16), and the other side of the bus bar (15) is provided with a magnetic ring assembly (1) and a leakage protection actuating mechanism which are connected with each other; the tripping element of the multipole circuit breaker (16) extends into the earth leakage protection actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010908832.9A CN111900053A (en) | 2020-09-02 | 2020-09-02 | Earth leakage protection actuating mechanism and splicing type circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010908832.9A CN111900053A (en) | 2020-09-02 | 2020-09-02 | Earth leakage protection actuating mechanism and splicing type circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111900053A true CN111900053A (en) | 2020-11-06 |
Family
ID=73224364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010908832.9A Pending CN111900053A (en) | 2020-09-02 | 2020-09-02 | Earth leakage protection actuating mechanism and splicing type circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111900053A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023226673A1 (en) * | 2022-05-27 | 2023-11-30 | 厦门宏发开关设备有限公司 | Leakage protection unit and residual-current circuit breaker |
| CN117810041A (en) * | 2024-02-04 | 2024-04-02 | 美高电气科技有限公司 | Electromagnetic multipole circuit breaker with leakage protection function |
-
2020
- 2020-09-02 CN CN202010908832.9A patent/CN111900053A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023226673A1 (en) * | 2022-05-27 | 2023-11-30 | 厦门宏发开关设备有限公司 | Leakage protection unit and residual-current circuit breaker |
| CN117810041A (en) * | 2024-02-04 | 2024-04-02 | 美高电气科技有限公司 | Electromagnetic multipole circuit breaker with leakage protection function |
| CN117810041B (en) * | 2024-02-04 | 2024-09-24 | 美高电气科技有限公司 | Electromagnetic multipole circuit breaker with leakage protection function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100555506C (en) | The operating mechanism of miniature circuit breaker | |
| CN111900053A (en) | Earth leakage protection actuating mechanism and splicing type circuit breaker | |
| JP4387034B2 (en) | Circuit breaker | |
| CN101677049B (en) | Improved circuit breaker | |
| CN212625453U (en) | Earth leakage protection actuating mechanism and splicing type circuit breaker | |
| CN103646828B (en) | The operating mechanism of miniature circuit breaker and the course of work thereof | |
| CN2777745Y (en) | Operating mechanism for small circuit breaker | |
| JP3057155B2 (en) | Circuit breaker | |
| CA2783232C (en) | Electrical switching apparatus and secondary trip mechanism therefor | |
| CN110491748B (en) | Leakage protection circuit breaker | |
| CN203631449U (en) | Operating mechanism of miniature circuit breaker | |
| CN220065596U (en) | Switching device | |
| CN210628226U (en) | Leakage protection circuit breaker | |
| CN114446732B (en) | Circuit breaker, power cabinet with structure and power assisting method | |
| CN214313106U (en) | Operating mechanism of circuit breaker and circuit breaker using operating mechanism | |
| CN213026001U (en) | Circuit breaker actuating mechanism | |
| CN115472471A (en) | Circuit breaker and combined switch electrical apparatus | |
| CN115360065A (en) | Plug-in circuit breaker | |
| CN116344279A (en) | Magnetic flux release resetting structure and circuit breaker | |
| CN114783837A (en) | Operating system of miniature circuit breaker and miniature circuit breaker with same | |
| CN210296276U (en) | Tripping output force value amplifying mechanism and circuit breaker with same | |
| CN116344277A (en) | Magnetic flux release resetting structure and circuit breaker | |
| CN112820592A (en) | Wiring terminal and plug-in circuit breaker | |
| CN217333982U (en) | Magnetic flux release reset structure and circuit breaker | |
| CN217333983U (en) | Magnetic flux release reset structure and 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 |