CN212625442U - Tripping system of circuit breaker - Google Patents
Tripping system of circuit breaker Download PDFInfo
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- CN212625442U CN212625442U CN202021551173.XU CN202021551173U CN212625442U CN 212625442 U CN212625442 U CN 212625442U CN 202021551173 U CN202021551173 U CN 202021551173U CN 212625442 U CN212625442 U CN 212625442U
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- circuit breaker
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Abstract
The application discloses a tripping system of a circuit breaker in the technical field of circuit breakers, which comprises a main bracket, a coil bracket and a connecting plate, an iron core is arranged on the coil support, a coil is arranged on the iron core, a rotating shaft is arranged on the coil support, an L-shaped armature is rotatably connected to the rotating shaft, an armature spring for resetting the armature is further arranged on the rotating shaft, the main bracket is provided with a zinc piece, a buckle sheet is arranged in the zinc piece, a zinc piece spring which enables the zinc piece to rotate clockwise is arranged between the zinc piece and the main bracket, the main bracket is also provided with a semi-axis which is rotationally connected with the main bracket, the semi-axis is provided with a locking groove, the locking groove is buckled with the buckle sheet, the upper end of the armature is contacted with the half shaft, the main bracket is rotatably connected with a rotating point frame, the rotating point frame is connected with the zinc piece, the movable contact is arranged on the movable point frame, the fixed contact is arranged on the connecting plate, and the fixed contact is in contact with the movable contact. The utility model discloses simple structure, it is exquisite reasonable, arrange about realizing, can reduce the volume of circuit breaker, the processing equipment is easy simple and convenient.
Description
Technical Field
The utility model belongs to the technical field of the circuit breaker, in particular to tripping system of circuit breaker.
Background
The requirements of people on the electricity safety are becoming stricter, and the plastic shell circuit breaker with the current protection action is widely applied due to compact structure, small volume and high cost performance. The release is an important mechanism in the circuit breaker, and the release is used for converting electric energy into mechanical action and separating the molded case circuit breaker when receiving a release signal. The traditional release is divided into an electronic release, a thermomagnetic release and the like, is generally installed in the circuit breaker, and is matched with a draw bar of the molded case circuit breaker to realize the releasing action. The release of the current common small-current molded case circuit breaker mainly comprises a coil, an iron core, a spring, a pull rod and a bracket. When the coil passes through alternating current, a magnetic field is generated in the coil, the iron core overcomes the spring force to pull the pull rod, and the pull rod pulls a pull rod of an operating mechanism of the circuit breaker to enable the circuit breaker to be opened.
The existing circuit breaker is integrated, inconvenient to assemble and disassemble, large in size, inconvenient to carry and incapable of being installed in places with strict requirements for height, and the tripping mechanism and the coil mechanism are of square structures arranged in the left and right directions.
SUMMERY OF THE UTILITY MODEL
The utility model provides a tripping system of circuit breaker to it is great to solve the tripping system volume that selects, the problem of the installation of not being convenient for.
The present invention provides the following basic scheme: the tripping system of the circuit breaker comprises a main support, a coil support and a connecting plate, wherein an iron core is installed on the coil support, a coil is arranged on the iron core, a rotating shaft is arranged on the coil support, an L-shaped armature is connected to the rotating shaft in a rotating mode, an armature spring used for enabling the armature to reset is further arranged on the rotating shaft, a zinc piece is arranged on the main support, a buckle piece is arranged in the zinc piece, a zinc piece spring enabling the zinc piece to rotate clockwise is arranged between the zinc piece and the main support, a half shaft is further connected to the main support in a rotating mode, a lock groove is formed in the half shaft and buckled with the buckle piece, the upper end of the armature is in contact with the half shaft, a rotating point frame is connected to the main support in a rotating mode and connected with the zinc piece, a moving contact.
In the first optimization scheme, based on the basic scheme, the iron core is connected with an oil cup.
And based on the first optimization scheme, the main support is provided with a notch for the armature to pass through.
And based on the second optimization scheme, the moving point frame is rotationally connected with the zinc piece through a moving point frame rivet.
And based on the third optimization scheme, the top of the main support is rotatably connected with a handle, and the top end of the zinc piece is rotatably connected with the handle.
And the zinc piece is fixedly connected with the buckle piece through a zinc piece rivet based on the fourth optimization scheme.
And based on the fifth optimization scheme, a double-hook spring for resetting the armature and the zinc piece is further arranged on the main support.
The working principle and the beneficial effects of the scheme are as follows: when the circuit is seriously overloaded or short-circuited, the armature is directly attracted with the iron core by the electromagnetic force generated by the electromagnetic coil, namely, the armature rotates rightwards, the impact half shaft of the armature is the half shaft which deflects, so that the buckle sheet is moved out of the locking groove, then the zinc piece moves upwards under the action of the zinc piece spring, namely, the movable point frame is driven to rotate, the movable contact is separated from the static contact, and the circuit breaker is further disconnected, thereby completing the function of circuit protection. The utility model discloses simple structure, it is exquisite reasonable, arrange about realizing, can reduce the volume of circuit breaker, the processing equipment is easy simple and convenient.
Drawings
Fig. 1 is a schematic structural diagram of the tripping system of the circuit breaker of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the coil support comprises a coil support 1, a rotating shaft 2, an armature support 3, an armature block 4, an armature spring 5, a moving contact frame 6, a main support 7, a handle 8, a buckle piece 9, a zinc piece rivet 10, a zinc piece 11, a half shaft 12, a zinc piece spring 13, a double-hook spring 14, a moving contact frame rivet 15, a moving contact 16, an upper coil framework 17, a coil 18, a lower coil framework 19 and an oil cup 20.
The embodiment is basically as shown in the attached figure 1: a tripping system of a circuit breaker comprises a main support 7, a coil support 1 and a connecting plate, wherein the coil support 1 is provided with an upper coil framework 17 and a lower coil framework 19, an iron core is arranged between the upper coil framework 17 and the lower coil framework 19, the iron core is connected with an oil cup 20, the iron core is provided with a coil 18, the coil support 1 is provided with a rotating shaft 2, the rotating shaft 2 is rotatably connected with an L-shaped armature block 4, the armature block 4 consists of an armature support 3 and an armature block 4 which are made of plastic, the rotating shaft 2 is also provided with an armature spring 5 for resetting the armature support 3, the top of the main support 7 is rotatably connected with a handle 8, the handle 8 is rotatably connected with a zinc piece 11, the inside of the zinc piece 11 is fixedly connected with a buckle piece 9 through a zinc piece rivet 10, a zinc piece spring 13 for enabling the zinc piece 11 to rotate clockwise is arranged between the zinc piece 11, the movable point frame is characterized in that a locking groove is formed in the half shaft 12 and is buckled with the buckle piece 9, a notch for the armature support 3 to pass through is formed in the main support 7, the upper end of the armature support 3 is in contact with the half shaft 12, a double-hook spring 14 enabling the armature support 3 and the zinc piece 11 to reset is further arranged on the main support 7, the main support 7 is rotatably connected with a movable point frame 6, the movable point frame 6 is rotatably connected with the zinc piece 11 through a movable point frame rivet 15, a movable contact is arranged on the movable point frame 6, a fixed contact is arranged on the connecting plate, and the fixed contact.
The specific implementation process is as follows: when the circuit is overloaded or short-circuited seriously, the armature block 4 is attracted with the iron core directly by the electromagnetic force generated by the electromagnetic coil 18, the armature bracket 3 rotates rightwards, the half shaft 12 of the impact of the armature bracket 3 is the deflection of the half shaft 12, so that the buckle piece 9 moves out of the lock slot, then the zinc piece 11 moves upwards under the action of the zinc piece spring 13, namely, the movable point frame 6 is driven to rotate, the movable contact 16 is separated from the static contact, and the circuit breaker is disconnected, thereby completing the function of circuit protection. The utility model discloses simple structure, it is exquisite reasonable, arrange about realizing, can reduce the volume of circuit breaker, the processing equipment is easy simple and convenient.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (7)
1. Tripping system of circuit breaker, its characterized in that: the electromagnetic valve comprises a main support, a coil support and a connecting plate, wherein an iron core is installed on the coil support, a coil is arranged on the iron core, a rotating shaft is arranged on the coil support, an L-shaped armature is connected to the rotating shaft in a rotating mode, an armature spring used for enabling the armature to reset is further arranged on the rotating shaft, a zinc piece is arranged on the main support, a buckling piece is arranged in the zinc piece, a zinc piece spring enabling the zinc piece to rotate clockwise is arranged between the zinc piece and the main support, a half shaft is further connected to the main support in a rotating mode, a locking groove is formed in the half shaft and buckled with the buckling piece, the upper end of the armature is in contact with the half shaft, a rotating point frame is connected to the main support in a rotating mode and connected with the zinc piece, a moving.
2. The trip system of a circuit breaker of claim 1, wherein: the iron core is connected with an oil cup.
3. The trip system of a circuit breaker of claim 2, wherein: and the main bracket is provided with a notch for the armature to pass through.
4. The trip system of a circuit breaker of claim 3, wherein: the movable point frame is rotationally connected with the zinc piece through a movable point frame rivet.
5. The trip system of a circuit breaker of claim 4, wherein: the top of the main bracket is rotatably connected with a handle, and the top end of the zinc piece is rotatably connected with the handle.
6. The trip system of a circuit breaker of claim 5, wherein: the zinc piece is fixedly connected with the buckle piece through a zinc piece rivet.
7. The trip system of a circuit breaker of claim 6, wherein: and the main bracket is also provided with a double-hook spring for resetting the armature and the zinc piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021551173.XU CN212625442U (en) | 2020-07-30 | 2020-07-30 | Tripping system of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021551173.XU CN212625442U (en) | 2020-07-30 | 2020-07-30 | Tripping system of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212625442U true CN212625442U (en) | 2021-02-26 |
Family
ID=74730140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021551173.XU Active CN212625442U (en) | 2020-07-30 | 2020-07-30 | Tripping system of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212625442U (en) |
-
2020
- 2020-07-30 CN CN202021551173.XU patent/CN212625442U/en active Active
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