CN113192798A - Tripper structure for universal installation of electronic and thermomagnetic molded case circuit breakers - Google Patents
Tripper structure for universal installation of electronic and thermomagnetic molded case circuit breakers Download PDFInfo
- Publication number
- CN113192798A CN113192798A CN202110168497.8A CN202110168497A CN113192798A CN 113192798 A CN113192798 A CN 113192798A CN 202110168497 A CN202110168497 A CN 202110168497A CN 113192798 A CN113192798 A CN 113192798A
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- circuit breaker
- molded case
- bracket
- support
- electronic
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- 238000009434 installation Methods 0.000 title claims abstract description 14
- 230000000712 assembly Effects 0.000 claims abstract description 9
- 238000000429 assembly Methods 0.000 claims abstract description 9
- 238000005192 partition Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
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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
- H01H71/10—Operating or release 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
- H01H71/02—Housings; Casings; Bases; Mountings
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- Breakers (AREA)
Abstract
The invention provides a release structure for universal installation of electronic and thermomagnetic molded case circuit breakers, which comprises: the tripper body is integrally and detachably arranged on the circuit breaker and is provided with a circuit board assembly arranged on the upper part, and a plurality of groups of backup protection assemblies and current transformers which are arranged on the lower part and correspond to the contact assemblies of all phases. The tripper body can be integrally and detachably arranged on the circuit breaker, so that the tripper is more rapid and convenient to disassemble and assemble, and the tripper can be independently tested before being assembled with the circuit breaker, so that the testing efficiency is greatly improved; in addition, the electronic type and the thermomagnetic type both adopt the same release structure, and the production and inventory cost is reduced for manufacturers.
Description
Technical Field
The invention relates to the technical field of molded case circuit breakers, in particular to a release structure universally installed on electronic and thermomagnetic molded case circuit breakers.
Background
The molded case circuit breaker is used as an overload, undervoltage and short-circuit protection electric appliance of a low-voltage distribution system and a load protection loop, and when abnormal current occurs in a circuit, a tripping device of the circuit breaker can generate tripping action to cut off the circuit, so that load equipment and all parts in the circuit system are protected from being damaged.
The parts of the prior electronic and thermomagnetic molded case circuit breaker tripper are dispersedly fixed on the circuit breaker base, so the assembly procedure is more complicated, in addition, the tripper can only be tested after the tripper is assembled on the circuit breaker, and the tripper can only be disassembled and assembled again when the test is unqualified, thereby increasing the cost.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects of complex assembly process and high production cost of the release in the prior art, thereby providing the release structure which is universally installed for electronic and thermomagnetic molded case circuit breakers and has simple structure and rapid and convenient assembly.
Therefore, the invention provides a release structure for universal installation of electronic and thermomagnetic molded case circuit breakers, which comprises the following components: the tripper body is integrally and detachably arranged on the circuit breaker and is provided with a circuit board assembly arranged on the upper part, and a plurality of groups of backup protection assemblies and current transformers which are arranged on the lower part and correspond to the contact assemblies of all phases.
The tripper body pass through grafting structure with the circuit breaker assembly, the grafting structure is including locating the tripper body with the slot of circuit breaker one side to and locate the other side with the plug-in block that the slot corresponds the grafting.
The tripper body has from last to the tripper panel that sets gradually down, be suitable for the installation the first support of circuit board subassembly and be suitable for the installation multiunit backup protection subassembly with current transformer's second support.
The trip device panel is assembled with the first support through a first hook structure, and the first hook structure comprises a first hanging hole arranged on one side of the trip device panel and the first support and a first elastic hook arranged on the other side of the trip device panel and connected with the first hanging hole in a hook mode.
The first support is assembled with the second support through a second hook structure, and the second hook structure comprises a second hanging hole arranged on one side of the first support and the second support and a second elastic hook arranged on the other side and connected with the second hanging hole in a hook mode.
The second support is provided with a magnetic ring of a current transformer arranged in the second support and a conductive connecting piece penetrating through a through hole in the middle of the magnetic ring, and one end of the conductive connecting piece is fixedly provided with the backup protection assembly.
The backup protection assembly comprises an armature bracket, a movable armature and a torsion spring, and the armature bracket is fixed at one end of the conductive connecting piece; the movable armature is rotatably arranged on the armature bracket through a rotating shaft and is arranged close to the magnetic ring, the movable armature is provided with a driving rod which is linked with the movable armature and can drive the traction rod to act, and when the movable armature is in short circuit, the movable armature acts towards the direction of a tripping position under the action of the magnetic field of the magnetic ring; and the torsion spring is sleeved on the rotating shaft, one end of the torsion spring is abutted to the armature bracket, and the other end of the torsion spring is abutted to the movable armature.
Armature support include along the level set up, with electrically conductive connecting piece fixed connection's first mounting panel, and with the perpendicular second mounting panel that sets up of first mounting panel, the second mounting panel respectively through first limit structure and second limit structure with first support with circuit breaker spacing connection.
The first limiting structure comprises a first limiting groove arranged at the bottom of the first support and a first limiting block arranged at the top of the second mounting plate and connected with the first limiting groove in a limiting manner.
The second limit structure comprises second limit blocks arranged on two sides of the second mounting plate and second limit grooves arranged on the circuit breaker and correspondingly connected with the second limit blocks.
The first support and the second support are respectively provided with a first step and a second step which are correspondingly abutted against the top surface and the bottom surface of the magnetic ring.
The second support is provided with partition plates arranged between the adjacent two groups of backup protection assemblies and the current transformer.
The technical scheme of the invention has the following advantages:
1. according to the tripper structure provided by the invention, as the tripper body can be integrally and detachably arranged on the circuit breaker, the dismounting is more rapid and convenient, and the tripper can be independently tested before the tripper is assembled with the circuit breaker, so that the testing efficiency is greatly improved; in addition, the electronic type and the thermomagnetic type both adopt the release structure, and the production and inventory cost is reduced for manufacturers.
2. According to the tripper structure provided by the invention, the tripper body is assembled with the circuit breaker through the inserting structure, the inserting structure comprises the inserting slot arranged on one side of the tripper body and the circuit breaker and the inserting block arranged on the other side and correspondingly inserted into the inserting slot, and the inserting block and the inserting slot which are matched with each other have the advantages of simple structure and rapidness and convenience in assembly.
3. According to the release structure provided by the invention, the release panel is assembled with the first support through the first hook structure, the first support is assembled with the second support through the second hook structure, and the mode of hooking and connecting the elastic hook with the hanging hole is adopted, so that the release structure has the advantages of simple structure and quickness and convenience in disassembly and assembly, and screw-free assembly is realized.
4. According to the tripper structure, the backup protection assembly comprises the armature support, the movable armature and the torsion spring, the movable armature is arranged close to the magnetic ring, when the magnetic ring is in short circuit, the current passing through the magnetic ring can be increased instantly, the acting force of the magnetic ring on the movable armature is larger than the acting force of the torsion spring on the movable armature, so that the movable armature moves towards the tripping position, the mode that a magnetic yoke for generating magnetic field force is arranged on the armature support in the prior art is omitted, the structure is simpler, and the production cost is reduced.
5. According to the release structure provided by the invention, the second mounting plate of the armature bracket is provided with the first limiting block extending into the first limiting groove at the bottom of the first bracket and the second limiting block extending into the second limiting groove of the circuit breaker, and the limiting blocks are arranged at the two sides and the top of the second mounting plate, so that the second mounting plate can be prevented from being deformed by the acting force of the torsion spring, and the reliability is improved.
6. According to the release structure provided by the invention, the first step and the second step which are correspondingly abutted against the top surface and the bottom surface of the magnetic ring are respectively formed on the first support and the second support, so that the magnetic ring is more favorably positioned and installed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a perspective view of a circuit breaker of the present invention;
fig. 2 is an exploded schematic view of the circuit breaker and trip body of fig. 1;
fig. 3 is a schematic view of the assembly of the trip unit body and the circuit breaker base;
FIG. 4 is a schematic view of the assembly of the second bracket, armature bracket and circuit breaker base
FIG. 5 is an enlarged view of portion A of FIG. 4;
fig. 6 is a first perspective view of the trip body;
fig. 7 is a second perspective view of the trip body;
fig. 8 is a side view of the trip body;
fig. 9 is a cross-sectional view of the trip body;
fig. 10 is an exploded schematic view of the trip body;
FIG. 11 is an exploded view of the backup protection assembly, the magnetic ring, and the conductive connection;
fig. 12 is a perspective view of an armature bracket.
Description of reference numerals: 1. a release body; 11. inserting a block; 2. a circuit breaker; 21. a slot; 22. a second limit groove; 3. a tripper panel; 31. a first hanging hole; 4. a first bracket; 41. a first elastic hook; 42. a second hanging hole; 43. a first limit groove; 44. a first step; 5. a second bracket; 51. a second elastic hook; 52. a second step; 53. a partition plate; 6. a magnetic ring; 7. a conductive connection member; 8. an armature support; 81. a first mounting plate; 82. a second mounting plate; 83. a first stopper; 84. a second limiting block; 9. a moving armature; 90. a rotating shaft; 91. a drive rod.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Examples
The present embodiment provides a release structure for electronic and thermomagnetic molded case circuit breakers, as shown in fig. 1-3, a release body 1 is integrally and detachably mounted on a circuit breaker 2, and has a circuit board assembly disposed on the top, and a plurality of backup protection assemblies and current transformers disposed on the bottom and corresponding to each phase contact assembly.
The circuit breaker 2, as shown in fig. 4 and 5, includes a cover plate and a base which are fastened up and down, and the base is provided with a mounting cavity for mounting the trip unit body 1, a slot 21 and a second limiting groove 22.
The top of the release panel 3 can be used for mounting a label, a key or a display screen, and the bottom of two sides of the release panel 3 in the length direction is provided with a first hanging hole 31.
The backup protection assembly comprises: an armature bracket 8, a movable armature 9 and a torsion spring (not shown in the figure).
The armature bracket 8 is fixed at one end of the conductive connecting piece 7, as shown in fig. 9, 11 and 12, the armature bracket 8 comprises a first mounting plate 81 which is horizontally arranged and fixedly connected with the conductive connecting piece 7, and a second mounting plate 82 which is vertically arranged with the first mounting plate 81, two sides of the second mounting plate 82 are provided with second limiting blocks 84 which are in limiting connection with the second limiting grooves 22 of the circuit breaker 2, and the top of the second mounting plate is provided with first limiting blocks 83 which are in limiting connection with the first limiting grooves 43 at the bottom of the first bracket 4; the first mounting plate 81 is assembled with the circuit breaker by rivets or screws.
The movable armature 9 is rotatably mounted on the armature bracket 8 through a rotating shaft 90 and is arranged close to the magnetic ring 6, the movable armature 9 is provided with a driving rod 91 which is linked with the movable armature 9 and can drive a traction rod (not shown in the figure) to act, and during short circuit, the movable armature 9 acts towards a tripping position under the action of the magnetic field acting force of the magnetic ring 6.
And the torsion spring is sleeved on the rotating shaft 90, one end of the torsion spring is abutted against the armature bracket 8, and the other end of the torsion spring is abutted against the movable armature 9.
As a changeable implementation mode, the bottom of the release panel 3 is provided with a first elastic hook, the top of the second support 5 is provided with a second hanging hole, the top of the first support 4 is provided with a first hanging hole connected with the first elastic hook in a hook manner, and the bottom of the first support is provided with a second elastic hook connected with the second hanging hole in a hook manner.
According to the tripper structure provided by the invention, as the tripper body 1 can be integrally and detachably arranged on the circuit breaker 2, the dismounting is more rapid and convenient, and the tripper can be independently tested before being assembled with the circuit breaker 2, so that the testing efficiency is greatly improved; in addition, the electronic type and the thermomagnetic type both adopt the release structure, and the production and inventory cost is reduced for manufacturers.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (12)
1. The utility model provides a release structure of general installation of electronic type and thermal-magnetic moulded case circuit breaker which characterized in that includes: the release body (1) is integrally and detachably mounted on the circuit breaker (2) and is provided with a circuit board assembly arranged on the upper part, and a plurality of groups of backup protection assemblies and current transformers which are arranged on the lower part and correspond to the contact assemblies of all phases.
2. The trip unit structure for universal installation of electronic and thermomagnetic molded case circuit breakers according to claim 1, characterized in that said trip unit body (1) is assembled with said circuit breaker (2) by means of a plug-in structure comprising a slot (21) provided on one of said trip unit body (1) and said circuit breaker (2), and a plug-in block (11) provided on the other in correspondence with said slot (21).
3. The trip unit structure for universal installation of electronic and thermomagnetic molded case circuit breakers according to claim 1 or 2, characterized in that said trip unit body (1) has, from top to bottom, a trip unit panel (3), a first bracket (4) suitable for mounting said circuit board assembly and a second bracket (5) suitable for mounting a plurality of sets of said backup protection assembly and said current transformer.
4. The trip structure for universal mounting of electronic and thermomagnetic molded case circuit breakers according to claim 3, characterized in that said trip panel (3) is assembled with said first bracket (4) by means of a first hooking structure comprising a first hooking hole (31) provided on one of said trip panel (3) and said first bracket (4), and a first elastic hook (41) provided on the other in hooking connection with said first hooking hole (31).
5. The trip structure for universal mounting of electronic and thermomagnetic molded case circuit breakers according to claim 3 or 4, characterized in that said first support (4) is assembled with said second support (5) by means of a second hooking structure comprising a second hooking hole (42) provided on one of said first support (4) and said second support (5), and a second elastic hooking (51) provided on the other in hooking connection with said second hooking hole (42).
6. The trip structure for universal mounting of electronic and thermomagnetic molded case circuit breakers according to claim 5, characterized in that said second support (5) has a magnetic ring (6) of a current transformer disposed therein, and a conductive connecting piece (7) passing through a through hole in the middle of said magnetic ring (6), one end of said conductive connecting piece (7) being fixedly mounted with said backup protection assembly.
7. The electrical and thermomagnetic molded case circuit breaker universally-installed trip unit structure of claim 6, wherein the backup protection assembly comprises:
the armature bracket (8) is fixed at one end of the conductive connecting piece (7);
the movable armature (9) is rotatably arranged on the armature bracket (8) through a rotating shaft (90) and is arranged close to the magnetic ring (6), the movable armature (9) is provided with a driving rod (91) which is linked with the movable armature and can drive the traction rod to act, and when the short circuit occurs, the movable armature (9) acts towards the direction of a tripping position under the action of the magnetic field of the magnetic ring (6);
and the torsion spring is sleeved on the rotating shaft (90), one end of the torsion spring is abutted to the armature support (8), and the other end of the torsion spring is abutted to the movable armature (9).
8. The trip structure for universal installation of electronic and thermomagnetic molded case circuit breakers according to claim 7, characterized in that said armature support (8) comprises a first mounting plate (81) arranged horizontally, fixedly connected to said conductive connection element (7), and a second mounting plate (82) arranged perpendicularly to said first mounting plate (81), said second mounting plate (82) being in limit connection with said first support (4) and with said circuit breaker (2) through a first limit structure and a second limit structure, respectively.
9. The trip unit structure for universal mounting of electronic and thermomagnetic molded case circuit breakers according to claim 8, characterized in that said first limit structure comprises a first limit groove (43) provided at the bottom of said first bracket (4), and a first limit block (83) provided at the top of said second mounting plate (82) and in limit connection with said first limit groove (43).
10. The electrical and thermomagnetic molded case circuit breaker universally-installed release structure according to claim 8 or 9, wherein the second limiting structure comprises second limiting blocks (84) disposed on two sides of the second mounting plate (82), and second limiting grooves (22) disposed on the circuit breaker (2) and corresponding to the second limiting blocks (84).
11. The electrical and thermomagnetic molded case circuit breaker universally-installable release structure according to any one of claims 6-10, wherein the first bracket (4) and the second bracket (5) are respectively formed with a first step (44) and a second step (52) that are correspondingly abutted against the top surface and the bottom surface of the magnetic ring (6).
12. The electrical and thermomagnetic molded case circuit breaker universally-installed release structure according to any of claims 3-11, wherein the second bracket (5) has a partition (53) disposed between two adjacent sets of backup protection assemblies and current transformers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110168497.8A CN113192798B (en) | 2021-02-07 | 2021-02-07 | Electronic type and thermomagnetic type release structure for universal installation of molded case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110168497.8A CN113192798B (en) | 2021-02-07 | 2021-02-07 | Electronic type and thermomagnetic type release structure for universal installation of molded case circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113192798A true CN113192798A (en) | 2021-07-30 |
| CN113192798B CN113192798B (en) | 2024-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110168497.8A Active CN113192798B (en) | 2021-02-07 | 2021-02-07 | Electronic type and thermomagnetic type release structure for universal installation of molded case circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113192798B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115148556A (en) * | 2022-09-01 | 2022-10-04 | 浙江正泰电器股份有限公司 | Integrated protection module and circuit breaker |
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| EP0951045A2 (en) * | 1998-04-14 | 1999-10-20 | ABBPATENT GmbH | Ground fault circuit braker |
| JP2005184956A (en) * | 2003-12-18 | 2005-07-07 | Hitachi Ltd | Electric feeder line protection method and device |
| CN200972844Y (en) * | 2006-08-09 | 2007-11-07 | 任登华 | Universal leakage drop-out fitting |
| DE102006027812A1 (en) * | 2006-06-16 | 2007-12-20 | Siemens Ag | Circuit breaker and magnetic yoke for a circuit breaker |
| DE102009037250A1 (en) * | 2009-08-12 | 2011-02-17 | Siemens Aktiengesellschaft | Short-circuit trip i.e. electromagnetic trip, for use in power circuit breaker to switch and protect motor, has coil winding, where coil winding of wedge-shaped winding guides is wound on coil body |
| CN108899256A (en) * | 2018-07-27 | 2018-11-27 | 高能格乐电气股份有限公司 | The disengaging deivce of earth leakage of general two kinds of breakers |
| CN210692458U (en) * | 2019-04-17 | 2020-06-05 | 重庆科创职业学院 | Communication type electronic release and intelligent circuit breaker |
| CN211208347U (en) * | 2019-12-02 | 2020-08-07 | 浙江正泰电器股份有限公司 | Electronic type moulded case circuit breaker's reserve protection device and electronic type moulded case circuit breaker |
| CN212257320U (en) * | 2020-07-09 | 2020-12-29 | 加西亚电子电器股份有限公司 | Tripping system of circuit breaker and circuit breaker |
-
2021
- 2021-02-07 CN CN202110168497.8A patent/CN113192798B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0951045A2 (en) * | 1998-04-14 | 1999-10-20 | ABBPATENT GmbH | Ground fault circuit braker |
| JP2005184956A (en) * | 2003-12-18 | 2005-07-07 | Hitachi Ltd | Electric feeder line protection method and device |
| DE102006027812A1 (en) * | 2006-06-16 | 2007-12-20 | Siemens Ag | Circuit breaker and magnetic yoke for a circuit breaker |
| CN200972844Y (en) * | 2006-08-09 | 2007-11-07 | 任登华 | Universal leakage drop-out fitting |
| DE102009037250A1 (en) * | 2009-08-12 | 2011-02-17 | Siemens Aktiengesellschaft | Short-circuit trip i.e. electromagnetic trip, for use in power circuit breaker to switch and protect motor, has coil winding, where coil winding of wedge-shaped winding guides is wound on coil body |
| CN108899256A (en) * | 2018-07-27 | 2018-11-27 | 高能格乐电气股份有限公司 | The disengaging deivce of earth leakage of general two kinds of breakers |
| CN210692458U (en) * | 2019-04-17 | 2020-06-05 | 重庆科创职业学院 | Communication type electronic release and intelligent circuit breaker |
| CN211208347U (en) * | 2019-12-02 | 2020-08-07 | 浙江正泰电器股份有限公司 | Electronic type moulded case circuit breaker's reserve protection device and electronic type moulded case circuit breaker |
| CN212257320U (en) * | 2020-07-09 | 2020-12-29 | 加西亚电子电器股份有限公司 | Tripping system of circuit breaker and circuit breaker |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115148556A (en) * | 2022-09-01 | 2022-10-04 | 浙江正泰电器股份有限公司 | Integrated protection module and circuit breaker |
| CN115148556B (en) * | 2022-09-01 | 2024-01-23 | 浙江正泰电器股份有限公司 | Integrated protection module and circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113192798B (en) | 2024-05-10 |
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