CN107452565B - Small-sized leakage protector - Google Patents
Small-sized leakage protector Download PDFInfo
- Publication number
- CN107452565B CN107452565B CN201710753776.4A CN201710753776A CN107452565B CN 107452565 B CN107452565 B CN 107452565B CN 201710753776 A CN201710753776 A CN 201710753776A CN 107452565 B CN107452565 B CN 107452565B
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- Prior art keywords
- tripping
- linkage
- plate
- leakage
- rod
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- 230000001012 protector Effects 0.000 title claims abstract description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 28
- 230000009471 action Effects 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 6
- 230000008719 thickening Effects 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- H01H71/1009—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
Landscapes
- Breakers (AREA)
Abstract
The invention discloses a small-sized leakage protector which comprises a shell, wherein a leakage tripping driver and a leakage tripping assembly are arranged in the shell, an iron core is arranged in the leakage tripping driver, the leakage tripping assembly comprises a tripping rod, a tripping plate and a linkage plate, the linkage plate comprises a connecting end and a linkage end in linkage connection with an operating mechanism of a small-sized circuit breaker, and the connecting end of the linkage plate is arranged in the shell through a spring; when the circuit breaker has an electric leakage condition, the electric leakage tripping driver props against the tripping rod through the iron core to enable the tripping rod to rotate, and in the rotating process of the tripping rod, the abutting end on the connecting shaft downwards extrudes the abutting end part of the tripping plate to enable the tripping plate to rotate and drive the tripping action block to downwards move to touch and press the tripping shaft on the miniature circuit breaker to enable the miniature circuit breaker to realize the electric leakage tripping action; the leakage tripping assembly of the invention realizes the completion of tripping action mainly through mechanical cooperation, reduces the use of elastic parts, prolongs the service life, reduces parts, has low cost and is more convenient to assemble.
Description
Technical Field
the invention belongs to the technical field of circuit breakers, and particularly relates to a small leakage protector.
Background
The miniature circuit breaker is commonly used in industrial, commercial and civil houses, and a leakage protector is usually connected to the side surface of a shell of the miniature circuit breaker according to the requirements of users. Install electric leakage trip driver in the earth leakage protector casing, the electric leakage hasp, the link gear that electric leakage trip and be connected with miniature circuit breaker handle, the electric leakage trip links to each other with the one end of connecting axle, the other end of connecting axle passes miniature circuit breaker's casing and links to each other with miniature circuit breaker's hasp, zero sequence transformer produces induced-current during the electric leakage, order about electric leakage trip driver after functional element on the circuit board enlargies and move, iron core among the electric leakage trip driver promotes the electric leakage hasp and breaks away from with the electric leakage trip, the action of electric leakage trip and the hasp that drives miniature circuit breaker through the connecting axle break away from with miniature circuit breaker's jump, make miniature circuit breaker realize electric leakage. When the miniature circuit breaker is closed, the handle drives the linkage mechanism to reset the leakage lock catch and the leakage jump catch. The leakage protector has the following defects: the leakage lock catch has the advantages of multiple parts, complex structure, high cost, inconvenience in assembly, high matching requirement between the leakage lock catch and the leakage jump catch, easiness in abrasion, easiness in failure during use, and no leakage release or misoperation.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the small-sized leakage protector which is simple in structure, safe, reliable and convenient to assemble.
in order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a small-size earth-leakage protector, includes the casing, is equipped with electric leakage dropout driver and electric leakage dropout subassembly in the casing, is equipped with the iron core in the electric leakage dropout driver, its characterized in that: the leakage tripping assembly comprises a tripping rod, a tripping plate and a linkage plate, wherein the linkage plate comprises a connecting end and a linkage end in linkage connection with an operating mechanism of the miniature circuit breaker, the connecting end of the linkage plate is arranged in the shell through a spring, the linkage plate is coaxially connected with the tripping plate, the tripping plate comprises a hinged end in coaxial fit with the linkage plate, the hinged end is rotatably assembled in the shell, a long groove hole is formed in the matching end of the tripping plate, the long axis of the long groove hole is obliquely and upwards arranged, one end of the tripping rod extends to a position corresponding to the iron core, a connecting shaft movably assembled in the long groove hole is arranged at the other end of the tripping rod, the connecting shaft and the long groove hole form a movable fit capable of relatively moving along the axial direction of the long groove hole, a contact end is arranged at the upper end of the connecting shaft, a butt end which is positioned below the contact end and is in contact with the contact end is also arranged at the matching end of the, the butt end part of the tripping plate and the butt end of the tripping rod form a linkage fit relation for driving the tripping plate to drive the tripping action block to move downwards along the direction of the long slotted hole so as to drive the tripping shaft of the miniature circuit breaker to act when the tripping rod is driven by the iron core of the electric leakage tripping driver to rotate. When the leakage protector has a leakage condition, the leakage tripping driver stretches out of the iron core to enable the iron core to abut against the extension end of the tripping rod, so that the extension end drives the tripping rod to rotate; when the miniature circuit breaker is closed, the handle drives the linkage plate to reset the tripping rod and the tripping plate; the electric leakage tripping assembly in the electric leakage protector mainly realizes the completion of tripping action through mechanical cooperation, reduces the use of elastic parts such as springs and the like, can greatly prolong the service life, has less component cooperation, lower cost and more convenient assembly, and saves the internal installation space.
Further, the trip rod includes the slope section that extends by the connecting axle lower extreme face and by slope section downwardly extending to the iron core cooperation section that corresponds the department with the iron core, conflict end includes the slope changeover portion that extends by the connecting axle up end, the horizontal conflict section that extends by the changeover portion level, conflict end and trip rod aequilate and coplanar coincidence set up. The iron core matching section of the trip rod can be further provided with an enlarged end face to increase the contact area between the trip rod and the iron core, so that the trip rod can move more stably when being abutted by the iron core.
furthermore, the butt end of the tripping plate extends horizontally from the outer wall of the long slotted hole to be inserted below the horizontal butt section of the tripping rod, and the butt end of the tripping plate is an L-shaped butt block. The L-shaped abutting block and the horizontal abutting section of the trip rod form cross-shaped different-surface cross contact, and the abutting fit of the L-shaped abutting block and the horizontal abutting section of the trip rod is more effective.
Further, the hinged end of dropout board is equipped with the thickening wall including enlarging the axle head, the local periphery of enlarging the axle head, and the thickening wall is located the one end of dropout board towards the gangboard, the dropout action piece is by the downward extension formation of just towards miniature circuit breaker's dropout axle direction of thickening wall, and the dropout action piece has the parallel cooperation terminal surface with miniature circuit breaker's dropout axle. The arrangement of the thickening wall can play a role in enhancing the structural strength of the tripping plate.
Further, the linkage end of linkage board is the linkage piece that is the triangle-shaped form and enlarges, the link includes the lateral wall that extends out and be both sides distribution by linkage piece below, leaves the space that can supply the spring seat to hold between the both sides wall, and the both sides wall free end articulates on the casing through same connecting rod. The upper part of a linkage block of the linkage plate is in linkage fit with a lock catch on the miniature circuit breaker through a connecting rod, the lower part of the linkage block is in linkage fit with a jump buckle on the miniature circuit breaker through a connecting rod, a spring seat is of a sheet structure and is inserted into gaps of two side walls, the upper end and the lower end of the spring seat are both sleeved on the two connecting rods, and the side wall of the spring seat is provided with a protruding part at an extending part for fixing one end of a spring.
by adopting the scheme, the electric leakage tripping assembly has the advantages of simple structure, few components, long service life, low cost and the like, and realizes the electric leakage tripping action through mechanical cooperation.
The invention is further described below with reference to the accompanying drawings.
drawings
Fig. 1 is a schematic structural view of a leakage protector mounted on a miniature circuit breaker according to an embodiment of the present invention;
Fig. 2 is a structural front view of a closing state in which the leakage trip unit is installed in the housing according to the embodiment of the present invention;
FIG. 3 is a schematic structural diagram of the opening state of FIG. 2 according to an embodiment of the present invention;
Fig. 4 is a schematic view of a connection structure between the leakage trip unit and the operating mechanism in the miniature circuit breaker according to the embodiment of the present invention;
Fig. 5 is a schematic diagram of a connection structure between a leakage trip assembly and a leakage trip driver according to an embodiment of the present invention;
Fig. 6 is an exploded view of a leakage trip assembly in accordance with an embodiment of the present invention;
Fig. 7 is a schematic structural diagram of a trip plate according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of a linkage plate according to an embodiment of the present invention;
The circuit breaker comprises a shell 1, an electric leakage tripping driver 2, a tripping rod 3, a tripping plate 4, a linkage plate 5, a spring 7, a miniature circuit breaker 8, a tripping shaft 81, a lock catch 82, a tripping button 83,
Linkage plate 5: connection end 51, side wall 511, gap 512, spring seat 71, protrusion 711, linkage end 52, and,
The releasing plate 4: hinged end 41, enlarged shaft end 411, thickened wall 412, mating end 42, slotted hole 421, abutting end 422, tripping action block 43,
the trip bar 3: the connecting shaft 31, the abutting end 32, the inclined transition section 321, the horizontal abutting section 322, the inclined section 331, the iron core matching section 332 and the contact rod 333.
Detailed Description
The specific embodiment of the invention is shown in fig. 1, which is a miniature circuit breaker with a leakage protector, comprising a miniature circuit breaker and a leakage protector, wherein the leakage protector is shown in fig. 2-8, and comprises a shell 1, a leakage tripping driver 2 and a leakage tripping assembly are arranged in the shell 1, an iron core is arranged in the leakage tripping driver 2, and the leakage tripping assembly comprises a tripping rod 3, a tripping plate 4 and a linkage plate 5.
The linkage plate 5 comprises a connecting end 51, and a linkage end 52 linked with an operating mechanism of the miniature circuit breaker 8, a connecting end 51 of the linkage plate 5 is installed in the casing 1 through a spring 7, the linkage plate 5 is coaxially connected with the trip plate 4, the trip plate 4 comprises a hinged end 41 coaxially matched with the linkage plate 5, the hinged end 41 is rotatably assembled in the casing 1, a long slot 421 is arranged at a matching end 42 of the trip plate 4, a long axis of the long slot 421 is obliquely and upwardly arranged, one end of the trip rod 3 extends to a position corresponding to the iron core, a connecting shaft 31 movably assembled in the long slot 421 is arranged at the other end of the trip rod 3, the connecting shaft 31 and the long slot 421 form a movable fit capable of relatively moving along the axial direction of the long slot 421, a contact end 32 is arranged at the upper end of the connecting shaft 31, and a contact end 422 located below the contact end 32 and contacted with the contact end 32 is further arranged at a matching end 42. The lower end of the tripping plate 4 extends to form a tripping action block 43 corresponding to the tripping shaft 81 on the miniature circuit breaker 8, and the abutting end 422 of the tripping plate 4 and the abutting end 32 of the tripping rod 3 form a linkage fit relation for driving the tripping plate 4 to drive the tripping action block to move downwards along the direction of the long slotted hole 421 so as to drive the tripping shaft 81 of the miniature circuit breaker 8 to act when the tripping rod 3 is driven to rotate by the iron core of the leakage tripping driver 2. When the leakage protector has a leakage condition, an iron core in the leakage tripping driver 2 extends out to enable the iron core to abut against an extension end of a tripping rod 3, so that the extension end drives the tripping rod 3 to rotate, and in the rotating process of the tripping rod 3, an abutting end 32 on a connecting shaft 31 of the leakage protector downwards presses an abutting end part 422 of a tripping plate 4 to enable the tripping plate 4 to rotate and drive a tripping action block 43 to downwards move to abut against a tripping shaft 81 on a miniature circuit breaker 8, so that the miniature circuit breaker 8 realizes leakage tripping action; when the miniature circuit breaker 8 is closed, the handle drives the linkage plate 5 to reset the tripping rod 3 and the tripping plate 4; the electric leakage tripping assembly in the electric leakage protector mainly realizes the completion of tripping action through mechanical cooperation, reduces the use of elastic parts such as a spring 7 and the like, can greatly prolong the service life, has less component cooperation, lower cost and more convenient assembly, and saves the internal installation space.
above-mentioned trip rod 3 includes the slope section 331 that extends out by connecting axle 31 lower terminal surface and by slope section 331 downwardly extending to the iron core cooperation section 332 that corresponds the department with the iron core, conflict end 32 includes the slope changeover portion 321 that extends out by connecting axle 31 up end, conflict section 322 by the level of changeover portion level extension, conflict end 32 and trip rod 3 aequilate and coplanar coincidence set up, the iron core cooperation section 332 of trip rod 3 in this embodiment has still set up and has stretched into in the trip driver and reach effectual conflict effect with iron core complex contact bar 333.
The abutting end 422 of the tripping plate 4 extends horizontally from the outer wall of the long slot hole 421 to be inserted below the horizontal abutting section 322 of the tripping rod 3, the abutting end 422 of the tripping plate 4 is in an L-shaped abutting block shape, the L-shaped abutting block and the horizontal abutting section 322 of the tripping rod 3 form cross-shaped different-surface cross contact, and the abutting cooperation of the L-shaped abutting block and the horizontal abutting section 322 is more effective. The hinged end 41 of the trip plate 4 comprises an enlarged shaft end 411, a thickened wall 412 is arranged on the partial periphery of the enlarged shaft end 411, the thickened wall 412 is positioned at one end, facing the linkage plate 5, of the trip plate 4, the trip action block 43 is formed by downwards extending the thickened wall 412 towards the direction of the trip shaft 81 of the small circuit breaker 8, and the trip action block 43 is provided with a matching end 42 surface parallel to the trip shaft 81 of the small circuit breaker 8. The arrangement of the thickened wall 412 can play a role in enhancing the structural strength of the trip plate 4.
The linkage end 52 of the linkage plate 5 is a linkage block with a triangular shape, the connecting end 51 comprises side walls 511 which extend from the lower part of the linkage block and are distributed on two sides, a gap 512 for accommodating the spring seat 71 is reserved between the two side walls 511, and the free ends of the two side walls 511 are hinged on the shell 1 through the same connecting rod. The upper part of the linkage block of the linkage plate 5 is in linkage fit with the lock catch 82 on the miniature circuit breaker 8 through a connecting rod, the lower part of the linkage block is in linkage fit with the jump catch 83 on the miniature circuit breaker 8 through a connecting rod, the spring seat 71 is in a sheet structure and is inserted into the gap 512 between the two side walls 511, the upper end and the lower end of the spring seat 71 are sleeved on the two connecting rods, and the protrusion 711 at the extending part of the side wall 511 of the spring seat 71 is used for fixing one end of the spring 7.
The present invention is not limited to the above embodiments, and those skilled in the art can implement the present invention in other embodiments according to the disclosure of the present invention, or make simple changes or modifications on the design structure and idea of the present invention, and fall into the protection scope of the present invention.
Claims (5)
1. The utility model provides a small-size earth-leakage protector, includes the casing, is equipped with electric leakage dropout driver and electric leakage dropout subassembly in the casing, is equipped with the iron core in the electric leakage dropout driver, its characterized in that: the leakage tripping assembly comprises a tripping rod, a tripping plate and a linkage plate, wherein the linkage plate comprises a connecting end and a linkage end in linkage connection with an operating mechanism of the miniature circuit breaker, the connecting end of the linkage plate is arranged in the shell through a spring, the linkage plate is coaxially connected with the tripping plate, the tripping plate comprises a hinged end in coaxial fit with the linkage plate, the hinged end is rotatably assembled in the shell, a long groove hole is formed in the matching end of the tripping plate, the long axis of the long groove hole is obliquely and upwards arranged, one end of the tripping rod extends to a position corresponding to the iron core, a connecting shaft movably assembled in the long groove hole is arranged at the other end of the tripping rod, the connecting shaft and the long groove hole form a movable fit capable of relatively moving along the axial direction of the long groove hole, a contact end is arranged at the upper end of the connecting shaft, a butt end which is positioned below the contact end and is in contact with the contact end is also arranged at the matching end of the, the butt end part of the tripping plate and the butt end of the tripping rod form a linkage fit relation for driving the tripping plate to drive the tripping action block to move downwards along the direction of the long slotted hole so as to drive the tripping shaft of the miniature circuit breaker to act when the tripping rod is driven by the iron core of the electric leakage tripping driver to rotate.
2. A small earth-leakage protector according to claim 1, characterized in that: the trip bar includes the slope section that extends by the connecting axle lower extreme face and by slope section downwardly extending to the iron core cooperation section that corresponds the department with the iron core, conflict end includes the slope changeover portion that extends by the connecting axle up end, the horizontal conflict section that extends by the changeover portion level, conflict end and trip bar aequilate and coplanar coincidence set up.
3. the miniature leakage protector of claim 2, wherein: the butt end of the tripping plate extends horizontally from the outer wall of the long slotted hole to be inserted below a horizontal butt section of the tripping rod, and the butt end of the tripping plate is an L-shaped butt block.
4. A small earth-leakage protector according to claim 3, characterized in that: the hinged end of dropout board is equipped with the thickening wall including enlarging the axle head, the local periphery of enlarging the axle head, and the thickening wall is located the one end of dropout board towards the gangboard, the dropout action piece is by the downward extension formation of just towards miniature circuit breaker's dropout axle direction of thickening wall, and the dropout action piece has the parallel fitting surface of dropout axle with miniature circuit breaker.
5. A miniature earth-leakage protector according to any of claims 1-4, characterized in that: the linkage end of linkage board is for being the linkage piece that the triangle-shaped shape enlarges, the link includes the lateral wall that extends out and be both sides distribution by linkage piece below, leaves the space that can supply the spring seat to hold between the both sides wall, and the both sides wall free end articulates on the casing through same connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710753776.4A CN107452565B (en) | 2017-08-29 | 2017-08-29 | Small-sized leakage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710753776.4A CN107452565B (en) | 2017-08-29 | 2017-08-29 | Small-sized leakage protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107452565A CN107452565A (en) | 2017-12-08 |
| CN107452565B true CN107452565B (en) | 2019-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710753776.4A Active CN107452565B (en) | 2017-08-29 | 2017-08-29 | Small-sized leakage protector |
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| Country | Link |
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| CN (1) | CN107452565B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108511288B (en) * | 2018-03-07 | 2023-09-05 | 广东南冠电气有限公司 | Small electromagnetic trip type leakage circuit breaker |
| CN112885667B (en) * | 2019-11-29 | 2025-07-08 | 上海电器股份有限公司人民电器厂 | External interface linkage mechanism for molded case circuit breaker and circuit breaker |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0896693A (en) * | 1994-09-27 | 1996-04-12 | Fuji Electric Co Ltd | Leakage trip device for earth leakage circuit breaker |
| KR100678415B1 (en) * | 2006-09-06 | 2007-02-06 | 주식회사 아키덤엔지니어링건축사사무소 | Earth leakage breaker with external earth leakage display |
| CN201465937U (en) * | 2009-05-26 | 2010-05-12 | 创奇科技有限公司 | Residual current circuit breaker |
| CN203503578U (en) * | 2013-09-16 | 2014-03-26 | 安德利集团有限公司 | Tripping trigger device for small residual-current circuit breaker |
| CN204809168U (en) * | 2015-05-26 | 2015-11-25 | 施耐德电器工业公司 | Circuit breaker with instruct electric leakage function |
| CN106449314A (en) * | 2016-09-20 | 2017-02-22 | 加西亚电子电器股份有限公司 | Residual-current circuit breaker |
| CN207183189U (en) * | 2017-08-29 | 2018-04-03 | 华通机电股份有限公司 | Small-sized earth leakage protective device |
-
2017
- 2017-08-29 CN CN201710753776.4A patent/CN107452565B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0896693A (en) * | 1994-09-27 | 1996-04-12 | Fuji Electric Co Ltd | Leakage trip device for earth leakage circuit breaker |
| KR100678415B1 (en) * | 2006-09-06 | 2007-02-06 | 주식회사 아키덤엔지니어링건축사사무소 | Earth leakage breaker with external earth leakage display |
| CN201465937U (en) * | 2009-05-26 | 2010-05-12 | 创奇科技有限公司 | Residual current circuit breaker |
| CN203503578U (en) * | 2013-09-16 | 2014-03-26 | 安德利集团有限公司 | Tripping trigger device for small residual-current circuit breaker |
| CN204809168U (en) * | 2015-05-26 | 2015-11-25 | 施耐德电器工业公司 | Circuit breaker with instruct electric leakage function |
| CN106449314A (en) * | 2016-09-20 | 2017-02-22 | 加西亚电子电器股份有限公司 | Residual-current circuit breaker |
| CN207183189U (en) * | 2017-08-29 | 2018-04-03 | 华通机电股份有限公司 | Small-sized earth leakage protective device |
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| Publication number | Publication date |
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| CN107452565A (en) | 2017-12-08 |
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