CN213459621U - Quick-release miniature circuit breaker - Google Patents
Quick-release miniature circuit breaker Download PDFInfo
- Publication number
- CN213459621U CN213459621U CN202023059678.7U CN202023059678U CN213459621U CN 213459621 U CN213459621 U CN 213459621U CN 202023059678 U CN202023059678 U CN 202023059678U CN 213459621 U CN213459621 U CN 213459621U
- Authority
- CN
- China
- Prior art keywords
- electrically conductive
- conductive end
- electromagnetic system
- iron core
- circuit breaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Electromagnets (AREA)
Abstract
The utility model relates to a miniature circuit breaker of quick dropout, including shell and electromagnetic system, operating device, the static contact, binding post, electromagnetic system includes coil skeleton and the coil of connection on coil skeleton, the static contact is including the wiring portion that connects gradually, the bearing part, the kink, location portion, the extension, the both ends of coil form respectively with binding post electricity be connected first electrically conductive end and with the electrically conductive end of the second of wiring portion electricity connection, first electrically conductive end and binding post are parallel arrangement, electrically conductive end of second and wiring portion are parallel arrangement, form the stationary contact on the bearing part, the kink is provided with the magnetic conduction piece with location portion junction, the extension sets up the below at electromagnetic system. The utility model discloses miniature circuit breaker can respond drive operating device action sooner, and the quick dropout when realizing the short circuit just shortens the contact time of breaking disconnected action in-process stationary contact and movable contact, improves the life of sound contact.
Description
Technical Field
The utility model relates to a low pressure electrical technology field especially relates to a miniature circuit breaker of quick dropout.
Background
The miniature circuit breaker has the characteristics of advanced structure, reliable performance, strong breaking capacity, attractive and small appearance and the like, can be used for the overload and short-circuit protection of illumination, distribution lines and equipment of office buildings, houses and similar buildings, and can also be used for the infrequent on-off operation and conversion of the lines. The method is mainly used in various places such as industrial, commercial, high-rise and civil houses. The miniature circuit breaker generally comprises a shell, and an operating mechanism, an electromagnetic system, an overload protection mechanism and an arc extinguishing system which are arranged in the shell.
The existing miniature circuit breaker has the following defects: 1. the electromagnetic system is electrically connected in the shell, and the existing electromagnetic system can not quickly drive the ejector rod to act and impact the release piece when generating a magnetic field instantly due to short circuit, so that the operating mechanism is broken; 2. no matter the miniature circuit breaker is disconnected under overload or the short circuit condition, the moving contact is not fast enough from the stationary contact, makes the temperature of stationary contact and moving contact junction too high for the loss of moving stationary contact has made the electric life of moving static contact descend, has also shortened miniature circuit breaker's life simultaneously.
Disclosure of Invention
In view of this, the utility model aims at providing a miniature circuit breaker, its electromagnetic system can order about the ejector pin action fast under the short circuit condition, and sound contact can the quick separation when breaking apart to make miniature circuit breaker realize the quick dropout.
In order to achieve the above object, the present invention provides a miniature circuit breaker capable of fast tripping, which comprises a housing, an electromagnetic system disposed in the housing, an operating mechanism disposed in the housing and forming a linkage fit with the electromagnetic system, a static contact fixed in the housing and disposed below the electromagnetic system, and a connecting terminal disposed at one side of the electromagnetic system, wherein the electromagnetic system comprises a coil frame and a coil connected to the coil frame, the static contact comprises a wiring portion, a bearing portion, a bending portion, a positioning portion, and an extending portion, the two ends of the coil respectively form a first conductive end electrically connected to the connecting terminal and a second conductive end electrically connected to the wiring portion, the first conductive end and the connecting terminal are disposed in parallel, the second conductive end and the wiring portion are disposed in parallel, the bearing portion forms a static contact, and a magnetic conductive piece is disposed at the junction of the bending portion and the positioning portion, the extension is disposed below the electromagnetic system.
The first conductive end and the wiring terminal of the coil are arranged in parallel, and the second conductive end and the wiring part of the coil are arranged in parallel, so that firstly, the two ends of the coil can be respectively and stably electrically connected to the wiring terminal and the static contact, and secondly, the arrangement enables the electromagnetic system to generate a stronger magnetic field under the condition of the same short-circuit current, thereby being capable of responding to the action of the driving operation mechanism more quickly and realizing quick tripping during short circuit; set up the magnetic conduction piece that is close to the stationary contact on the stationary contact, at miniature circuit breaker breaking action in the twinkling of an eye, the moving contact is equivalent to one section electrified conductor, and the produced magnetic field of magnetic conduction piece can form a lorentz force to the moving contact, orders about the moving contact and separates from the stationary contact with higher speed, shortens the contact time of breaking action in-process stationary contact and moving contact to improve the life of moving contact.
The utility model discloses further set up to electromagnetic system still including fix on coil skeleton quiet iron core, swing joint on coil skeleton and with quiet iron core coaxial setting move the iron core, connect ejector pin, the setting of moving on moving the iron core and the spring between quiet iron core, first electrically conductive end, the electrically conductive end of second all are parallel arrangement with quiet iron core.
Above-mentioned first electrically conductive end, the electrically conductive end of second, quiet iron core, move the iron core and all be parallel arrangement, further promote the magnetic field intensity of electromagnetic system under the same short-circuit current condition, the electromagnetic system of above-mentioned structure is convenient for assemble moreover, and the release action of ejector pin follow-up iron core is more reliable and more stable.
This practicality further sets up to the magnetic conduction piece and is close to the stationary contact setting.
The magnetic field generated by the position of the magnetic conductive sheet enables acting force on the moving contact to be more obvious when the miniature circuit breaker is disconnected, has better tripping performance and prolongs the service life of the miniature circuit breaker.
Drawings
Fig. 1 is a perspective view of an embodiment of the present invention.
Fig. 2 is a perspective view of the electromagnetic system, the static contact, and the wiring terminal of the embodiment of the present invention.
Fig. 3 is an explosion diagram of an electromagnetic system according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1-3, the utility model relates to a quick-release miniature circuit breaker, which comprises a housing 1, an electromagnetic system 2 disposed in the housing 1, an operating mechanism 3 disposed in the housing 1 and forming a linkage fit with the electromagnetic system 2, a static contact 4 fixed in the housing 1 and disposed below the electromagnetic system 2, and a connecting terminal 5 disposed at one side of the electromagnetic system 2, wherein the electromagnetic system 2 comprises a coil frame 21, a coil 22 connected to the coil frame 21, a static iron core 23 fixed on the coil frame 21, a movable iron core 24 movably connected to the coil frame 21 and disposed coaxially with the static iron core 23, a plunger 25 connected to the movable iron core 24, and a spring 26 disposed between the movable iron core 24 and the static iron core 23, the static contact 4 comprises a wiring portion 41, a bearing portion 42, a bending portion 43, a positioning portion 44, and an extending portion 45 connected in sequence, the both ends of coil 22 form the first electrically conductive end 221 that is connected with binding post 5 electricity and the second electrically conductive end 222 that is connected with wiring portion 41 electricity respectively, first electrically conductive end 221 and binding post 5 are parallel arrangement, and second electrically conductive end 222 and wiring portion 41 are parallel arrangement, first electrically conductive end 221, second electrically conductive end 222 all are parallel arrangement with quiet iron core 23, form stationary contact 421 on the portion of bearing 42, kink 43 is provided with magnetic conduction piece 6 with location portion 44 junction, magnetic conduction piece 6 is close to stationary contact 421 and sets up, extension 45 sets up the below at electromagnetic system 2.
According to the above embodiment, the utility model discloses miniature circuit breaker realizes that the effect of quick dropout does: the first conductive end and the wiring terminal of the coil are arranged in parallel, and the second conductive end and the wiring part are arranged in parallel, so that firstly, the two ends of the coil can be respectively and stably electrically connected to the wiring terminal and the static contact, and secondly, the arrangement enables the electromagnetic system to generate a stronger magnetic field under the condition of the same short-circuit current, thereby being capable of responding to the action of the driving operation mechanism more quickly and realizing quick tripping during short circuit; set up the magnetic conduction piece that is close to the stationary contact on the stationary contact, at miniature circuit breaker breaking action instant, the moving contact is equivalent to one section electrified conductor, and the produced magnetic field of magnetic conduction piece can form a lorentz force to the moving contact, orders about the moving contact and separates from the stationary contact with higher speed, shortens the contact time of breaking action in-process stationary contact and moving contact.
In addition to the above embodiments, there are also other embodiments of the present invention, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit and scope of the present invention, and these changes and modifications need not be associated with the work, and they should be construed as being within the scope of the appended claims.
Claims (3)
1. The utility model provides a miniature circuit breaker of quick dropout, includes the shell and sets up electromagnetic system in the shell, set up in the shell and form linkage complex operating device, fixed in the shell and set up static contact, the binding post of setting in electromagnetic system one side in the electromagnetic system below, its characterized in that: the electromagnetic system includes coil skeleton and the coil of connection on coil skeleton, the static contact is including the wiring portion, load-bearing part, kink, location portion, the extension that connect gradually, the both ends of coil form respectively with the electrically conductive end of the first electrically conductive end of binding post electricity connection and the electrically conductive end of the second of wiring portion electricity connection, first electrically conductive end and binding post are parallel arrangement, the electrically conductive end of second and wiring portion are parallel arrangement, form the stationary contact on the load-bearing part, kink and location portion junction are provided with the magnetic conduction piece, the extension sets up the below at electromagnetic system.
2. The quick release miniature circuit breaker of claim 1, wherein: the electromagnetic system is still including fixing quiet iron core, swing joint on coil skeleton and with the quiet iron core coaxial setting move the iron core, connect the ejector pin on moving the iron core, set up the spring moving between iron core and the quiet iron core on coil skeleton, first electrically conductive end, the electrically conductive end of second all are parallel arrangement with quiet iron core.
3. The quick-release miniature circuit breaker according to claim 1 or 2, characterized in that: the magnetic conductive sheet is arranged close to the static contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023059678.7U CN213459621U (en) | 2020-12-17 | 2020-12-17 | Quick-release miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023059678.7U CN213459621U (en) | 2020-12-17 | 2020-12-17 | Quick-release miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213459621U true CN213459621U (en) | 2021-06-15 |
Family
ID=76305010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023059678.7U Active CN213459621U (en) | 2020-12-17 | 2020-12-17 | Quick-release miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213459621U (en) |
-
2020
- 2020-12-17 CN CN202023059678.7U patent/CN213459621U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208690915U (en) | A kind of charging current overload and short-circuit protector | |
| CN205319100U (en) | Equilibrant formula magnetic latching relay | |
| CN204516633U (en) | 1P+N integral type residual current circuit breaker | |
| CN115172104A (en) | Bridge type double-breakpoint contactor and breaker | |
| CN208077889U (en) | A kind of high-voltage relay of the quick terminal of band | |
| CN213459621U (en) | Quick-release miniature circuit breaker | |
| CN102262981B (en) | Bipolar DC contactor | |
| CN208336083U (en) | A kind of high-efficiency vacuum type breaker | |
| CN201829419U (en) | Moving contact device of relay | |
| CN215417919U (en) | Multiple suction superimposed electric switch | |
| CN211150473U (en) | Instantaneous backup protection device of electronic circuit breaker | |
| CN201918324U (en) | Dipolar direct-current contactor | |
| CN206379314U (en) | High stability electromagnetic relay | |
| CN216487871U (en) | Safety electromagnetic relay | |
| CN201365036Y (en) | Circuit protection plug contact suppressing structure | |
| AU7914800A (en) | Electric pole for low-voltage power circuit breaker | |
| CN211045359U (en) | Automatic time-delay circuit breaker | |
| CN217690953U (en) | Vacuum circuit breaker convenient to trip | |
| CN104008924A (en) | Electromagnetic drive switching appliance with detachable and replaceable structure | |
| CN209895977U (en) | Waterproof electromagnetic switch with four pairs of contacts and with connection sequence | |
| CN219696359U (en) | Plastic case circuit breaker controlled by external signal | |
| CN209804569U (en) | Auxiliary tripping structure | |
| CN210443513U (en) | Plastic case leakage circuit breaker | |
| CN218101135U (en) | Intelligent circuit breaker assembly | |
| CN212783338U (en) | Magnetic protection module of switch device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |