CN112382547B - Thermomagnetic adjustable release - Google Patents
Thermomagnetic adjustable release Download PDFInfo
- Publication number
- CN112382547B CN112382547B CN202011222375.4A CN202011222375A CN112382547B CN 112382547 B CN112382547 B CN 112382547B CN 202011222375 A CN202011222375 A CN 202011222375A CN 112382547 B CN112382547 B CN 112382547B
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- CN
- China
- Prior art keywords
- release
- traction rod
- rod
- thermomagnetic
- auxiliary traction
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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
- 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
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- 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 matched 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 thermoadjustable function is achieved; through the structural cooperation of the main traction rod, the auxiliary traction rod, the eccentric rod and each adjusting button, each component can be integrated on the release housing, and then the exchange of the thermomagnetic release and the electronic release on the 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 a certain threshold value is set according to national standards to form the release performance of a specific protection curve. When overload or short-circuit fault occurs in the circuit, the release realizes the protection of the molded case circuit breaker on the overload or short-circuit fault through the thermal effect or the magnetic effect.
The traditional thermomagnetic release mainly realizes overload protection and short-circuit protection through the cooperation of the bimetallic strip and the armature, and when a circuit is overloaded, the bimetallic strip is deformed by heating, so as to drive an operating mechanism to act to break the circuit; when the circuit is short-circuited, the electromagnet of the thermomagnetic release generates magnetic force to attract the armature, so that the armature releases the main contact through the transmission mechanism after being attracted, and the effect of power-off protection is achieved. With the progress of technology, the existing thermomagnetic release develops a 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 rectifying effect is realized.
However, the electronic release is considered simultaneously when the molded case circuit breaker is designed, so that the circuit breaker needs to be assembled with the release with two different structures in the same space range, namely, the thermomagnetic release and the electronic release can be exchanged in an integral disassembly and assembly mode. The existing thermomagnetic adjustable release is required to be installed on a circuit breaker base with a rectifying structure, so that the problem that the electronic release and the thermomagnetic release cannot be replaced integrally is caused, and the applicability is poor.
Therefore, there is a need for a thermo-magnetic release that can implement thermo-magnetic adjustability and that can be interchanged with an electronic release.
Disclosure of Invention
The invention aims to provide a thermomagnetic adjustable release. The thermomagnetic adjustable function of the release can be realized, and the electronic release can be exchanged.
The technical scheme of the invention is as follows: the 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 thermomagnetic adjustable release, the auxiliary traction rod is connected with the main traction rod in a sliding and rotating mode, and the auxiliary traction rod is provided with a collision surface matched with the thermomagnetic release.
In the thermomagnetic 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 a retainer ring mounting opening matched with the annular groove plate is formed in the main traction rod.
In the thermomagnetic adjustable release, the thermomagnetic release is connected with the eccentric rod through the tension spring, and the instantaneous adjusting knob is connected to the outer part of the eccentric rod.
In the thermomagnetic adjustable release, a driving point is arranged on the eccentric rod, and a spiral surface matched with the driving point is arranged on the instantaneous adjusting knob.
In the foregoing thermo-magnetic adjustable release, the main traction rod and the eccentric rod are respectively connected in the release housing in a rotating way, and the instantaneous adjusting knob and the delay adjusting button extend to the outer side of the release housing.
In the thermomagnetic 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 release can drive the operation structure to disconnect a circuit through the auxiliary traction rod and the main traction rod in sequence when current is overloaded, so that a thermal protection function is realized; meanwhile, through the cooperation 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 thermal adjustability is realized; through the cooperation of the thermomagnetic release, the tension spring and the eccentric rod, the eccentric rod can adjust the rotation angle of the eccentric rod through the instantaneous adjusting knob, so that the function of magnetic adjustability is realized;
(2) On the basis of realizing the thermomagnetic adjustable function, the invention can effectively reduce independent mounting brackets compared with the prior structure by rotationally connecting the main traction rod, the auxiliary traction rod and the eccentric rod in the release housing and arranging the instantaneous adjusting knob and the delay adjusting button on the release housing, and can integrate the whole structure of the invention on the release housing so as to exchange the whole structure with an electronic release, thereby effectively improving the applicability of the invention;
(3) According to the invention, on the basis of the matched linkage of the main traction rod and the auxiliary traction rod, the auxiliary traction rod can be limited at a designated position through the arrangement of the mounting opening of the retainer ring, so that the auxiliary traction rod can keep constant setting current after being limited, and the auxiliary traction rod has the characteristics of heat adjustability and heat non-adjustability, and further improves the functionality and applicability;
therefore, the invention can realize the thermomagnetic adjustable function of the release and can exchange with the electronic release.
Drawings
FIG. 1 is an outline view of the present invention;
FIG. 2 is a view of the invention in another orientation;
FIG. 3 is a schematic structural view of the secondary drawbar;
FIG. 4 is a schematic structural view of the primary drawbar;
FIG. 5 is a schematic structural view of an eccentric rod;
FIG. 6 is a schematic structural view of a trip enclosure;
FIG. 7 is a schematic diagram of the structure of the delay adjustment button;
fig. 8 is a schematic structural view of the instantaneous adjustment knob.
The marks in the drawings are: the device comprises a 1-thermomagnetic release, a 2-main traction rod, a 3-auxiliary traction rod, a 4-delay adjusting button, a 5-eccentric rod, a 6-instantaneous adjusting knob, a 7-release housing, a 201-retainer ring mounting port, a 301-collision surface, a 302-annular groove plate, a 303-transverse moving groove and a 501-driving point.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not intended to be limiting.
Examples. The thermomagnetic adjustable release is shown in fig. 1, and comprises a thermomagnetic release 1, wherein a main traction rod 2 is arranged outside a bimetallic strip of the thermomagnetic release 1, an operation structure is connected to the outside of the main traction rod 2, an auxiliary traction rod 3 is connected to 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 time delay adjusting button 4 is connected to the auxiliary traction rod 3.
The auxiliary traction rod 3 is in sliding and rotating connection with the main traction rod 2 (the auxiliary traction rod 3 can simultaneously rotate and horizontally slide on the main traction rod 2 in sliding and rotating connection), and the auxiliary traction rod 3 is provided with a collision surface 301 matched with the thermomagnetic release 1.
The collision surface 301 is a step surface or an inclined surface, and the different horizontal positions in the step surface or the inclined surface are different from the distances between the bimetallic strip screws of the thermomagnetic release 1.
The auxiliary traction rod 3 is connected with the main traction rod 2 through an annular groove plate 302, an opening sleeved with the main traction rod 2 is formed in the annular groove plate 302, and a retainer ring mounting opening 201 matched with the annular groove plate 302 is formed in the main traction rod 2.
The armature of the thermomagnetic release 1 is connected with an eccentric rod 5 through a tension spring, and the outer part 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 spiral surface matched with the driving point 501.
The device further comprises a release housing 7, wherein both sides of the release housing 7 are respectively connected with the thermomagnetic release 1 and an external operating mechanism, the main traction rod 2 and the eccentric rod 5 are respectively and rotatably connected in the release housing 7, and the instantaneous adjusting knob 6 and the time delay adjusting button 4 extend to the outer side of the release housing 7; the release housing 7 is provided with a mounting clamping hook which is mutually buckled with the breaker base.
The auxiliary traction rod 3 is provided with a transverse moving groove 303, and the delay adjusting button 4 is provided with a deflector rod extending into the transverse moving groove 303.
The working principle of the invention is as follows: when the magnetic tripping 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 a tension spring between the eccentric rod 5 and the thermomagnetic tripping device 1 is stretched, and larger traction force is applied to the armature, and the adjustment of magnetic tripping current is realized. By rotating the delay adjusting button 4, the auxiliary traction rod 3 can transversely slide along the main traction rod 2 under the cooperation of the transverse movement groove 303 and the deflector rod, so that the relative positions of the collision surface 301 and the bimetallic strip on the thermomagnetic release 1 are changed. The distance between the collision surface 301 and the bimetallic strip is changed after the position is changed, so that the bimetallic strip can push the auxiliary traction rod 3 to rotate through the corresponding collision surface 301 under different heat deformation states, and the operation structure is driven to act through the linkage of the auxiliary traction rod 3 and the main traction rod 2 to break the circuit; thereby realizing the adjustment of the thermal trip current. When the auxiliary traction rod 3 transversely slides to the end part position of the main traction rod 2, the retainer ring is arranged in the retainer ring mounting opening 201 to transversely limit the auxiliary traction rod 3, so that the main traction rod 2 and the auxiliary traction rod 3 are kept mutually fixed in the sliding direction; the effect that the thermal tripping current is not adjustable is achieved. Under the cooperation, the invention can realize two forms of heat regulation and heat non-regulation at the same time, thereby improving the functionality of the invention.
On the basis of the above, through the structural optimization of the invention, each adjusting mechanism and each linkage mechanism in the release are integrated on the release housing 7, and the release housing 7 is not required to be supported and installed by an external bracket, so that the invention can be disassembled only by taking down the release housing 7 from the base of the circuit breaker when the circuit breaker is used for replacing the electronic release, and the exchange of the thermomagnetic release and the electronic release on the release panel in the circuit breaker is realized.
Claims (3)
1. The utility model provides a thermomagnetic adjustable release which characterized in that: the thermal magnetic release device comprises a thermal magnetic release (1), wherein a main traction rod (2) is arranged outside the thermal magnetic 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);
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);
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);
the thermomagnetic release (1) is connected with an eccentric rod (5) through a tension spring, and an instantaneous adjusting knob (6) is connected to the outside of the eccentric rod (5);
a driving point (501) is arranged on the eccentric rod (5), and a spiral surface matched with the driving point (501) is arranged on the instantaneous adjusting knob (6);
the novel electric power release device is characterized by further comprising a release housing (7), wherein the main traction rod (2) and the eccentric rod (5) are respectively connected in 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).
2. The thermomagnetically adjustable release according to claim 1, wherein: the collision surface (301) is a stepped surface or an inclined surface.
3. The thermomagnetically adjustable release according to claim 1, wherein: the auxiliary traction rod (3) is provided with a transverse moving groove (303), and the delay adjusting button (4) is provided with a deflector rod extending into the transverse moving groove (303).
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 CN112382547A (en) | 2021-02-19 |
| CN112382547B true 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 (7)
| 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 |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465249B (en) * | 2013-09-24 | 2016-08-10 | 上海电科电器科技有限公司 | Adjustable electric magnetic release |
| DE102014203661B4 (en) * | 2014-02-28 | 2021-02-04 | Siemens Aktiengesellschaft | Button element and slide element of an adjusting device as well as adjusting device and method for adjusting a position of a thermal release shaft |
-
2020
- 2020-11-05 CN CN202011222375.4A patent/CN112382547B/en active Active
Patent Citations (7)
| 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 |
| 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 |
|---|---|
| CN112382547A (en) | 2021-02-19 |
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