CN112382547A - Thermomagnetic adjustable release - Google Patents
Thermomagnetic adjustable release Download PDFInfo
- Publication number
- CN112382547A CN112382547A CN202011222375.4A CN202011222375A CN112382547A CN 112382547 A CN112382547 A CN 112382547A CN 202011222375 A CN202011222375 A CN 202011222375A CN 112382547 A CN112382547 A CN 112382547A
- Authority
- CN
- China
- Prior art keywords
- traction rod
- release
- thermomagnetic
- rod
- auxiliary traction
- 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.)
- Granted
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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/14—Electrothermal mechanisms
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
The invention discloses a thermomagnetic adjustable release which comprises a thermomagnetic release (1), wherein a main traction rod (2) is arranged outside the thermomagnetic release (1), an auxiliary traction rod (3) is connected to the main traction rod (2), and a delay adjusting button (4) is connected to the auxiliary traction rod (3). According to the invention, through the matching linkage of the main traction rod and the auxiliary traction rod, the auxiliary traction rod can change the distance between the auxiliary traction rod and the thermomagnetic release through the transverse sliding on the main traction rod, so that the function of thermal adjustability is achieved; through the structural matching of the main traction rod, the auxiliary traction rod, the eccentric rod and each adjusting button, all the parts can be integrated on a tripper housing, and then the interchange of the thermal magnetic tripper and the electronic tripper on a circuit breaker panel is realized.
Description
Technical Field
The invention relates to a release structure, in particular to a thermomagnetic adjustable release.
Background
The molded case circuit breaker mainly comprises a contact arc extinguishing system, an operating mechanism and a release, wherein the release is used for monitoring current and voltage operation data of a main loop and setting a certain threshold value according to national standards to form the release performance of a specific protection curve. When overload or short-circuit fault occurs in the line, the release realizes the protection of the molded case circuit breaker on the overload or short-circuit fault through thermal effect or magnetic effect.
The traditional thermomagnetic trip realizes overload protection and short-circuit protection mainly through the matching of a bimetallic strip and an armature, and when a circuit is overloaded, the bimetallic strip is heated and deformed to drive an operating mechanism to act and disconnect the circuit; when the circuit is short-circuited, the electromagnet of the thermomagnetic trip generates magnetic force to adsorb the armature, so that the armature releases the main contact through the transmission mechanism after being adsorbed, and the effect of power-off protection is achieved. With the progress of the technology, the current thermomagnetic release develops the thermomagnetic adjustable function, namely an eccentric rod is arranged on a shell of the circuit breaker, and an armature is hung on the eccentric rod through a spring, so that the tension change of the armature is realized by adjusting the rotation angle of the eccentric rod, and the rectification effect is realized.
However, the electronic release is also considered when the molded case circuit breaker is designed, so that the circuit breaker needs to be assembled with two releases of different structures in the same space range, namely the electromagnetic release and the electronic release can be exchanged in an integral dismounting mode. The current thermomagnetic adjustable release needs to install a rectifying structure on a base of the circuit breaker, so that the problem that the electronic release and the thermomagnetic release cannot be integrally replaced is caused, and the applicability is poor.
Therefore, there is a need for a thermomagnetic trip that can perform thermomagnetic adjustable functions and is interchangeable with an electronic trip.
Disclosure of Invention
The invention aims to provide a thermomagnetic adjustable release. The thermomagnetic adjustable tripping device can realize the thermomagnetic adjustable function of the tripping device and can be interchanged with an electronic tripping device.
The technical scheme of the invention is as follows: a thermomagnetic adjustable release comprises a thermomagnetic release, wherein a main traction rod is arranged outside the thermomagnetic release, an auxiliary traction rod is connected to the main traction rod, and a delay adjusting button is connected to the auxiliary traction rod.
In the thermo-magnetic adjustable release, the auxiliary traction rod is connected with the main traction rod in a sliding and rotating manner, and the auxiliary traction rod is provided with a collision surface matched with the thermo-magnetic release.
In the thermo-magnetic adjustable release, the collision surface is a step surface or an inclined surface.
In the thermomagnetic adjustable release, the auxiliary traction rod is connected with the main traction rod through the annular groove plate, and the main traction rod is provided with a check ring mounting opening matched with the annular groove plate.
In the thermo-magnetic adjustable release, the thermo-magnetic release is connected to an eccentric rod through a tension spring, and an instantaneous adjusting knob is connected to the outside of the eccentric rod.
In the thermomagnetic adjustable release, the eccentric rod is provided with a driving point, and the instantaneous adjusting knob is provided with a helicoid matched with the driving point.
The thermomagnetic adjustable release further comprises a release housing, the main traction rod and the eccentric rod are respectively and rotatably connected in the release housing, and the instantaneous adjusting knob and the delay adjusting button extend to the outer side of the release housing.
In the thermo-magnetic adjustable release, the auxiliary traction rod is provided with a transverse moving groove, and the delay adjusting button is provided with a deflector rod extending into the transverse moving groove.
Compared with the prior art, the invention has the following characteristics:
(1) according to the invention, through the matching linkage of the main traction rod and the auxiliary traction rod, the thermomagnetic tripper can sequentially drive the operation structure to break a circuit through the auxiliary traction rod and the main traction rod when the current is overloaded, so that a thermal protection function is realized; meanwhile, through the matching of the auxiliary traction rod and the delay adjusting button, the distance between the thermomagnetic release and the auxiliary traction rod can be changed by adjusting the transverse position of the auxiliary traction rod, so that the function of heat adjustment is realized; through the cooperation of the thermomagnetic release, the tension spring and the eccentric rod, the eccentric rod can adjust the rotation angle thereof through the instantaneous adjusting knob, so as to realize the function of magnetic adjustment;
(2) on the basis of realizing the thermomagnetic adjustable function, the main traction rod, the auxiliary traction rod and the eccentric rod are rotatably connected in the tripper housing, and the instantaneous adjusting knob and the delay adjusting button are arranged on the tripper housing, so that compared with the existing structure, the invention can effectively reduce independent mounting brackets, and can integrate the whole structure of the invention on the tripper housing, thereby enabling the integral structure of the invention to be interchanged with an electronic tripper, and effectively improving the applicability of the invention;
(3) on the basis of the matching linkage of the main traction rod and the auxiliary traction rod, the auxiliary traction rod can be limited at an appointed position by arranging the check ring mounting opening, so that the auxiliary traction rod keeps the fixed setting current after the limitation, the heat adjustable and heat non-adjustable characteristics can be realized, and the functionality and the applicability of the invention are further improved;
therefore, the invention can realize the thermomagnetic adjustable function of the release and can be interchanged with the electronic release.
Drawings
FIG. 1 is an external view of the present invention;
FIG. 2 is a profile view of the present invention in another orientation;
FIG. 3 is a schematic structural view of the secondary drawbar;
FIG. 4 is a schematic structural view of the main drawbar;
FIG. 5 is a schematic view of the structure of an eccentric rod;
fig. 6 is a schematic structural view of a trip housing;
FIG. 7 is a schematic view of a time delay adjustment button;
fig. 8 is a schematic view of the structure of the instantaneous adjusting knob.
The labels in the figures are: 1-thermomagnetic release, 2-main traction rod, 3-auxiliary traction rod, 4-time delay adjusting button, 5-eccentric rod, 6-instantaneous adjusting knob, 7-release cover, 201-check ring mounting opening, 301-collision surface, 302-annular groove plate, 303-transverse moving groove and 501-driving point.
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. A thermomagnetic adjustable release is shown in figure 1 and comprises a thermomagnetic release 1, a main traction rod 2 is arranged outside a bimetallic strip of the thermomagnetic release 1, the outside of the main traction rod 2 is connected with an operation structure, an auxiliary traction rod 3 is connected onto the main traction rod 2, a control part capable of driving the main traction rod 2 to rotate is arranged on the auxiliary traction rod 3, and a delay adjusting button 4 is connected onto the auxiliary traction rod 3.
The auxiliary traction rod 3 is connected with the main traction rod 2 in a sliding and rotating mode (the auxiliary traction rod 3 can rotate and horizontally slide on the main traction rod 2 at the same time in a sliding and rotating mode), and a collision surface 301 matched with the thermomagnetic release 1 is arranged on the auxiliary traction rod 3.
The collision surface 301 is a stepped surface or an inclined surface, and the distances between the different horizontal positions in the stepped surface or the inclined surface and the bimetallic strip screw of the thermomagnetic release 1 are different.
The auxiliary traction rod 3 is connected with the main traction rod 2 through an annular groove plate 302, an opening which is mutually sleeved with the main traction rod 2 is formed in the annular groove plate 302, and a check ring mounting opening 201 matched with the annular groove plate 302 is formed in the main traction rod 2.
The armature of the thermomagnetic trip 1 is connected with an eccentric rod 5 through a tension spring, and the outside of the eccentric rod 5 is connected with an instantaneous adjusting knob 6.
The eccentric rod 5 is provided with a driving point 501, and the instantaneous adjusting knob 6 is provided with a helicoid matched with the driving point 501.
The trip device comprises a trip device housing 7, wherein two sides of the trip device housing 7 are respectively connected with a thermomagnetic trip device 1 and an external operating mechanism, the main traction rod 2 and the eccentric rod 5 are respectively and rotatably connected in the trip device housing 7, and the instantaneous adjusting knob 6 and the delay adjusting button 4 extend to the outer side of the trip device housing 7; and the tripper housing 7 is provided with an installation clamping hook which is mutually buckled with the circuit breaker base.
A transverse moving groove 303 is arranged on the auxiliary traction rod 3, and a deflector rod extending into the transverse moving groove 303 is arranged on the delay adjusting button 4.
The working principle of the invention is as follows: when the magnetic release device is used, the instantaneous adjusting knob 6 is rotated to drive the eccentric rod 5 to rotate through the driving point 501, so that the tension spring between the eccentric rod 5 and the thermomagnetic release 1 is extended, a larger traction force is applied to the armature, and the adjustment of the magnetic release current is realized. The auxiliary traction rod 3 can slide transversely along the main traction rod 2 under the matching of the transverse moving groove 303 and the deflector rod by rotating the time delay adjusting button 4, so that the relative positions of the collision surface 301 and the bimetallic strip on the thermomagnetic release 1 are changed. After the position of the collision surface 301 is changed, the distance between the collision surface 301 and the bimetallic strip is changed, so that the bimetallic strip can push the auxiliary traction rod 3 to rotate through the corresponding collision surface 301 in different thermal deformation states, and an operation structure is driven to act to open a circuit through the linkage of the auxiliary traction rod 3 and the main traction rod 2; thereby realizing the adjustment of the thermal trip current. When the auxiliary traction rod 3 transversely slides to the end position of the main traction rod 2, the retainer ring can be arranged in the retainer ring mounting opening 201 to further enable the retainer ring to transversely limit the auxiliary traction rod 3, and further enable the main traction rod 2 and the auxiliary traction rod 3 to be fixed with each other in the sliding direction; namely, the effect that the thermal tripping current is not adjustable is achieved. Under the cooperation, the invention can simultaneously realize two forms of thermal adjustability and thermal non-adjustability, and improves the functionality of the invention.
On the basis, all the adjusting mechanisms and the linkage mechanisms in the tripper can be integrated on the tripper housing 7 through the structural optimization of the invention, and an external support is not needed for supporting and installing the tripper housing 7, so that the tripper housing 7 can be detached only by taking down the tripper housing 7 from the base of the circuit breaker when the electronic tripper is replaced by the circuit breaker, and the interchange of the thermal magnetic tripper and the electronic tripper on a tripper panel in the circuit breaker is realized.
Claims (8)
1. A thermomagnetic adjustable release is characterized in that: the hot-magnetic tripping device comprises a hot-magnetic tripping device (1), wherein a main traction rod (2) is arranged outside the hot-magnetic tripping device (1), an auxiliary traction rod (3) is connected onto the main traction rod (2), and a delay adjusting button (4) is connected onto the auxiliary traction rod (3).
2. The thermomagnetic adjustable release of claim 1, wherein: the auxiliary traction rod (3) is connected with the main traction rod (2) in a sliding and rotating mode, and a collision surface (301) matched with the thermomagnetic release (1) is arranged on the auxiliary traction rod (3).
3. A thermomagnetic adjustable trip unit according to claim 2, wherein: the collision surface (301) is a step surface or an inclined surface.
4. A thermomagnetic adjustable trip unit according to claim 2, wherein: the auxiliary traction rod (3) is connected with the main traction rod (2) through an annular groove plate (302), and a check ring mounting opening (201) matched with the annular groove plate (302) is formed in the main traction rod (2).
5. The thermomagnetic adjustable release of claim 1, wherein: the thermomagnetic release (1) is connected with an eccentric rod (5) through a tension spring, and the outside of the eccentric rod (5) is connected with an instantaneous adjusting knob (6).
6. The thermomagnetic adjustable release of claim 5, wherein: the eccentric rod (5) is provided with a driving point (501), and the instantaneous adjusting knob (6) is provided with a spiral surface matched with the driving point (501).
7. The thermomagnetic adjustable release of claim 5, wherein: the device is characterized by further comprising a release housing (7), the main traction rod (2) and the eccentric rod (5) are respectively connected into the release housing (7) in a rotating mode, and the instantaneous adjusting knob (6) and the delay adjusting button (4) extend to the outer side of the release housing (7).
8. The thermomagnetic adjustable release of claim 1, wherein: a transverse moving groove (303) is formed in the auxiliary traction rod (3), and a shifting rod extending into the transverse moving groove (303) is arranged on the delay adjusting button (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011222375.4A CN112382547B (en) | 2020-11-05 | 2020-11-05 | Thermomagnetic adjustable release |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011222375.4A CN112382547B (en) | 2020-11-05 | 2020-11-05 | Thermomagnetic adjustable release |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112382547A true CN112382547A (en) | 2021-02-19 |
| CN112382547B CN112382547B (en) | 2023-10-17 |
Family
ID=74579217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011222375.4A Active CN112382547B (en) | 2020-11-05 | 2020-11-05 | Thermomagnetic adjustable release |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112382547B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1815660A (en) * | 2006-03-06 | 2006-08-09 | 浙江正泰电器股份有限公司 | Split thermomagnetic adjustable release device for circuit breaker |
| CN102347171A (en) * | 2010-07-30 | 2012-02-08 | 上海良信电器股份有限公司 | Device for distinguishing and indicating fault of thermomagnetic tripping device |
| DE102010062792A1 (en) * | 2010-12-10 | 2012-06-14 | Siemens Aktiengesellschaft | Triggering device of earth-leakage circuit breaker used in electrical system, has reset button that is pressed to position trip rod in initial position and to position blocking rod in blocking position |
| WO2013075770A1 (en) * | 2011-11-21 | 2013-05-30 | Abb Technology Ag | Thermo-magnetic release mechanism for circuit breakers |
| CN104465247A (en) * | 2014-12-30 | 2015-03-25 | 上海电科电器科技有限公司 | Thermal type adjustable tripping device for miniature circuit breaker |
| US20150248985A1 (en) * | 2014-02-28 | 2015-09-03 | Siemens Aktiengesellschaft | Knob element and slide element of an adjusting apparatus and adjusting apparatus and method for adjusting a position of a thermal tripping shaft |
| US20160217959A1 (en) * | 2013-09-24 | 2016-07-28 | Seari Electric Technology Co., Ltd. | Adjustable electromagnetic release |
| KR20170051657A (en) * | 2015-10-30 | 2017-05-12 | 현대일렉트릭앤에너지시스템(주) | Trip apparatus of mold case circuit breaker |
| CN209298038U (en) * | 2018-09-18 | 2019-08-23 | 温州瑞睿电气有限公司 | A kind of breaker of plastic casing for the buckle releaser that detachably changes the outfit |
-
2020
- 2020-11-05 CN CN202011222375.4A patent/CN112382547B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1815660A (en) * | 2006-03-06 | 2006-08-09 | 浙江正泰电器股份有限公司 | Split thermomagnetic adjustable release device for circuit breaker |
| CN102347171A (en) * | 2010-07-30 | 2012-02-08 | 上海良信电器股份有限公司 | Device for distinguishing and indicating fault of thermomagnetic tripping device |
| DE102010062792A1 (en) * | 2010-12-10 | 2012-06-14 | Siemens Aktiengesellschaft | Triggering device of earth-leakage circuit breaker used in electrical system, has reset button that is pressed to position trip rod in initial position and to position blocking rod in blocking position |
| WO2013075770A1 (en) * | 2011-11-21 | 2013-05-30 | Abb Technology Ag | Thermo-magnetic release mechanism for circuit breakers |
| US20160217959A1 (en) * | 2013-09-24 | 2016-07-28 | Seari Electric Technology Co., Ltd. | Adjustable electromagnetic release |
| US20150248985A1 (en) * | 2014-02-28 | 2015-09-03 | Siemens Aktiengesellschaft | Knob element and slide element of an adjusting apparatus and adjusting apparatus and method for adjusting a position of a thermal tripping shaft |
| CN104465247A (en) * | 2014-12-30 | 2015-03-25 | 上海电科电器科技有限公司 | Thermal type adjustable tripping device for miniature circuit breaker |
| KR20170051657A (en) * | 2015-10-30 | 2017-05-12 | 현대일렉트릭앤에너지시스템(주) | Trip apparatus of mold case circuit breaker |
| CN209298038U (en) * | 2018-09-18 | 2019-08-23 | 温州瑞睿电气有限公司 | A kind of breaker of plastic casing for the buckle releaser that detachably changes the outfit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112382547B (en) | 2023-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203103245U (en) | Circuit breaker tripping mechanism capable of adjusting short-circuit instantaneous setting current | |
| WO2012045209A1 (en) | Miniature breaker | |
| US20230377824A1 (en) | Quick tripping device and circuit breaker | |
| US9384912B2 (en) | Circuit breaker | |
| CN201369299Y (en) | Overload protection device of thermomagnetic-type over current tripping device | |
| CN101930883B (en) | Small-sized breaker | |
| CN213277986U (en) | Thermomagnetic adjustable release | |
| CN112382547A (en) | Thermomagnetic adjustable release | |
| CN217333981U (en) | Tripping mechanism | |
| CN101763992A (en) | Thermomagnetic tripper | |
| CN103325632B (en) | A kind of can the circuit breaker manipulation mechanism of rapid-releasing | |
| CN105632850A (en) | Breaker | |
| CN102332371B (en) | Small-sized circuit breaker | |
| WO2017097191A1 (en) | Overload protection mechanism with long delay | |
| CN220672498U (en) | Thermomagnetic adjustable circuit breaker | |
| CN106876220B (en) | Thermal overload alarm non-tripping device of circuit breaker | |
| CN202084493U (en) | Electromagnetic instantaneous trip adjusting device of low-voltage circuit breaker | |
| CN111463081A (en) | Miniature circuit breaker locking and tripping system and method | |
| CN220796628U (en) | Thermomagnetic tripping module and circuit breaker comprising thermomagnetic tripping module | |
| CN217822634U (en) | Thermomagnetic adjusting structure for circuit breaker and circuit breaker | |
| CN200983347Y (en) | Adjustable thermal magnetic buckler structure | |
| CN217641181U (en) | Modularized thermomagnetic adjustable tripping device | |
| CN218730711U (en) | Plastic case circuit breaker capable of selecting overload alarm mode | |
| CN204809058U (en) | Splint formula dual spring operating mechanism | |
| CN211578682U (en) | 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |