CN203103245U - Circuit breaker tripping mechanism capable of adjusting short-circuit instantaneous setting current - Google Patents
Circuit breaker tripping mechanism capable of adjusting short-circuit instantaneous setting current Download PDFInfo
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- CN203103245U CN203103245U CN2013201144311U CN201320114431U CN203103245U CN 203103245 U CN203103245 U CN 203103245U CN 2013201144311 U CN2013201144311 U CN 2013201144311U CN 201320114431 U CN201320114431 U CN 201320114431U CN 203103245 U CN203103245 U CN 203103245U
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- armature
- tripping mechanism
- breaker tripping
- base
- plate
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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
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
- H01H71/7418—Adjusting both electrothermal and electromagnetic mechanism
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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
- H01H71/40—Combined electrothermal and electromagnetic mechanisms
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- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
The utility model discloses a circuit breaker tripping mechanism capable of adjusting short-circuit instantaneous setting current. The mechanism comprises a base, a thermomagnetic tripping device, an instantaneous adjusting knob and an adjusting plate, wherein the adjusting plate is arranged in the base; mutually-matched guide ribs and guide grooves are respectively formed in corresponding positions of the side face of the adjusting plate and the side wall of the base; the adjusting plate can slide along the direction of the guide grooves under the interaction of the instantaneous adjusting knob and the adjusting plate; the thermomagnetic tripping device id arranged in the base and comprises an armature, a tripping device support and an iron core; the armature is arranged on the tripping device support through an armature shaft; and the armature is rotated around the armature shaft in the direction far away from the iron core under the action of a second elastic element and leans against on an adjusting oblique plane of the side face of the adjusting plate. The mechanism has the advantages that the purpose of adjusting the instantaneous setting current is achieved by adjusting an air gap between the armature and the iron core in the thermomagnetic tripping mechanism; the height of the circuit breaker is not increased specially; and the gap change of all-phase electromagnetism is consistent when the mechanism is applied to three-phase or four-phase circuit breakers.
Description
Technical field
The utility model relates to the low-voltage circuit breaker field, is more particularly to the breaker tripping mechanism that can adjust the instantaneous setting current of short circuit.
Background technology
Thermomagnetic type moulded case circuit breaker (hereinafter to be referred as circuit breaker) because inside has the Thermomagnetic type trigger element, can play overload time-delay and the effect of short circuit instantaneous protection to the power consumption equipment in power and distribution supply cable and the circuit.
Traditional Thermomagnetic type circuit breaker, its overload delayed setting electric current, and the instantaneous setting current of short circuit can not be adjusted in use all by particular value setting.In power and distribution supply cable, the setting value of the electric current under the normal condition in the circuit and short circuit current that may occur and circuit breaker difference sometimes is very big, and this all can influence the protective feature and the sensitivity thereof of circuit breaker.Along with the application of electronic technology in circuit breaker, the adjustment of overload delaying current and the instantaneous setting current of short circuit all is easy to realize, and precision is all very high, but because the electronic type product is subjected to environment for use, influence as humidity, dust, sunshine or the like is very big, still can't replace traditional Thermomagnetic type product fully in a lot of occasions;
In recent years, the Thermomagnetic type circuit breaker that a lot of enterprises both at home and abroad can adjust time-delay and transient current in exploitation, and in to the adjustable scheme of instantaneous operation electric current, adopt the method for adjustment magnetic release reaction spring mostly.Adopt this method, the support that all needs to increase at least one rod member and support this rod member can make the height of circuit breaker increase more than the 10mm.
Summary of the invention
For overcoming the technical problem that above-mentioned prior art exists, the utility model provides a kind of breaker tripping mechanism of the instantaneous setting current of the short circuit adjusted simple in structure, the method of air gap reaches the purpose of adjusting instantaneous setting current between the armature and iron core by adjusting in the Thermomagnetic type tripping mechanism, and can specially not increase the height of circuit breaker, it is consistent to guarantee also that when being applied to three-phase or four phase circuit breakers each phase electromagnetism gap changes.
For addressing the above problem, the utility model by the following technical solutions:
A kind of breaker tripping mechanism of adjusting the instantaneous setting current of short circuit comprises base 26, thermo magnetic trip release device 25, instantaneous adjustment knob 22, adjusts plate 28; Described adjustment plate 28 is arranged in the base 26, adjust on plate 28 sides and the base 26 sidewall opposite positions and be respectively equipped with guiding rib and the gathering sill (281,262) that cooperatively interacts, described instantaneous adjustment knob 22 interacts with adjustment plate 28 adjustment plate 28 is slided along gathering sill 262 directions; Described thermo magnetic trip release device 25 is arranged in the base 26, comprises armature 251, release bracket 256, unshakable in one's determination 257; Described armature 251 is installed on the release bracket 256 by armature shaft 258, and second flexible member 254 acts on armature 251 makes armature 251 rotate to the direction away from unshakable in one's determination 257 around armature shaft 258, leans against on the adjustment inclined-plane 282 of adjusting plate 28 sides.Make adjustment inclined-plane 282 promote armature 251 by the slip of adjusting plate 28 and rotate around armature shaft 258, can adjust the air gap of 257 of armature 251 and iron cores, reach the purpose of adjusting instantaneous setting current.
Further, described instantaneous adjustment knob 22 lower ends are provided with knob projection 283 spiral cambers that cooperate 223 middle with adjusting plate 28 1 ends, and described adjustment plate 28 other ends are connected with the reseting elastic element 30 that is installed on base 26 bottoms.This is a kind of concrete structure that instantaneous adjustment knob 22 cooperates with adjustment plate 28, adjusts plate 28 by the cooperation driving of spiral camber and reseting elastic element and slides up and down.
Further, described instantaneous adjustment knob 22 drives by being threaded with adjustment plate 28 and adjusts plate 28 slips.This is a kind of concrete structure that instantaneous adjustment knob 22 cooperates with adjustment plate 28, adjusts plate 28 by screw drive and slides.
Further, described breaker tripping mechanism is the three-phase breaker tripping mechanism, and described adjustment plate 28 is provided with three armature 251 of adjusting the thermo magnetic trip release device 25 that 282, three on inclined-planes are arranged side by side and leans against described three respectively and adjust on the inclined-planes 282.Adjust plate by one and adjust the three-phase electromagnetic gap simultaneously, it is consistent to guarantee that each phase electromagnetism gap changes.
Further, the inclined-plane on described adjustment inclined-plane 282 is towards the direction or the direction opposite with the bottom of base 26 bottoms.The inclined-plane is during towards the direction of bottom, and the electromagnetism gap between initial condition lower armature and iron core is in maximum rating; When towards the direction opposite with the bottom, the electromagnetism gap between initial condition lower armature and iron core is in minimum state.
Further, described breaker tripping mechanism also comprises the support 23 of fixedlying connected with base 26, and described instantaneous adjustment knob 22 is installed on the support 23, and its middle part is for cooperating the rotation draw-in groove 221 that plays installation and turning effort with support 23.This is a kind of mounting structure of instantaneous adjustment knob 22 specifically.
Further, protruding 283 tops of described knob are spherical.Be convenient to smoothly cooperate with spiral camber 223.
Further, described reseting elastic element 30 is the compression spring, and an end is installed on the pedestal lobe 261 of base 26 bottoms, and the other end is connected with the spring projection 280 that adjustment plate 28 1 end card springs are used.
Further, described second flexible member 254 is a torsion spring.
Further, described instantaneous adjustment knob 22 upper ends are provided with square groove 220.Square groove 220 can insert screwdriver, drives instantaneous adjustment knob 22 rotations by screwdriver and adjusts the instantaneous setting current of short circuit.
Description of drawings
Fig. 1 is that the utility model breaker tripping mechanism is installed on the schematic diagram on the circuit breaker;
Fig. 2 is the overall schematic of the utility model breaker tripping mechanism;
Fig. 3 is the schematic diagram that the utility model breaker tripping mechanism is adjusted plate;
Fig. 4 is the schematic diagram of the utility model breaker tripping mechanism base;
Fig. 5 is the schematic diagram of the instantaneous adjustment knob of the utility model breaker tripping mechanism;
Fig. 6 is the schematic diagram that the utility model breaker tripping mechanism is adjusted element (assembling back);
Fig. 7 is the schematic diagram of the utility model breaker tripping mechanism thermo magnetic trip release device;
Fig. 8 is the internal structure schematic diagram of the utility model breaker tripping mechanism;
Among the figure: 11, contact system; 14, operating mechanism; 17, tripping mechanism; 18, pedestal; 21, knob is adjusted in time-delay; 22, instantaneous adjustment knob; 23, support; 24, draw bar; 25, thermo magnetic trip release device; 26, base; 27, draw bar axle; 28, adjust plate; 29, screw; 30, back-moving spring; 261, pedestal lobe; 262, gathering sill; 280, spring projection; 281, guiding rib; 282, adjust the inclined-plane; 283, knob projection; 220, square groove; 221, rotation draw-in groove; 223, spiral camber; 250, thermal element; 251, armature; 252, adjustment screw; 253, bimetal leaf; 254, reaction spring; 255, gusset piece; 256, release bracket; 257, iron core; 258, armature shaft.
Embodiment
Below in conjunction with Figure of description a kind of execution mode of the present utility model is elaborated:
As shown in Figure 1, the utility model circuit breaker comprises contact system 11, operating mechanism 14, tripping mechanism 17 and the pedestal 18 of three-phase.Contact system 11, operating mechanism 14, tripping mechanism 17 all are installed in the pedestal; Operating mechanism 14 is connected with contact system 11 and can drives the dynamic and static contacts contact in the contact system 11 and separate combined floodgate and the separating brake of realizing circuit breaker; Tripping mechanism 17 is connected with operating mechanism 14 can make operating mechanism 14 thread off automatically, and contact system 11 is separated automatically, realizes the overload and the short-circuit protection of circuit.
As Fig. 2-shown in Figure 8, the tripping mechanism 17 of circuit breaker comprises base 26, is arranged at draw bar 24 on the base 26, is arranged at the thermo magnetic trip release device 25 in the base 26 and adjusts plate 28, is fixed in support 23 on the base 26 by screw 29 by draw bar axle 27, described support 23 is provided with time-delay and adjusts knob 21 and instantaneous adjustment knob 22, is provided with dropout switching mechanism in the support 23; Described thermo magnetic trip release device 25 is of coupled connections with draw bar 24, and described draw bar 24 can be connected with the switching mechanism in being arranged at support 23; Be respectively equipped with guiding rib 281 and the gathering sill 262 that cooperatively interacts on described adjustment plate 28 sides and the base 26 sidewall opposite positions, described instantaneous adjustment knob 22 is connected with adjustment plate 28 can make adjustment plate 28 slide along gathering sill 262 directions; Described adjustment plate 28 contacts with thermo magnetic trip release device 25, and described thermo magnetic trip release device 25 is installed in the base 26, comprising armature 251, release bracket 256, unshakable in one's determination 257; Described armature 251 is installed on the release bracket 256 by armature shaft 258, and reaction spring 254 acts on armature 251 makes armature 251 rotate to the direction away from unshakable in one's determination 257 around armature shaft 258, leans against on the adjustment inclined-plane 282 of adjusting plate 28 sides.
Described time-delay adjustment knob 21 and instantaneous adjustment knob 22 can be adjusted the overload delayed setting electric current and the instantaneous setting current of short circuit of circuit breaker respectively.Present embodiment support 23 and base 26 are passed through screw as part independently for the easy for installation of the switching mechanism of threading off, this is a kind of preferred version, support 23 also can be fixed by other connected mode for base 26, can also be one-body molded, be that support 23 is the part of base 26, knob 21 is adjusted in time-delay and instantaneous adjustment knob 22 can be set directly on the base 26.
The structure of described adjustment plate 28 is provided with the knob projection 283 that cooperates with instantaneous adjustment knob 22 as shown in Figure 3 in the middle of the end, the other end is provided with the spring projection 280 of two card back-moving springs 30, and the side is provided with guiding rib 281 and adjusts inclined-plane 282.Described knob projection 283 tops are spherical, are convenient to cooperate with instantaneous adjustment knob 22.
The structure of described base 26 as shown in Figure 4, inside is provided with the cavity that thermo magnetic trip release device 25 is installed, the bottom is provided with the pedestal lobe 261 of card back-moving spring 30, sidewall is provided with the gathering sill 262 that cooperates with the guiding rib 281 of adjusting plate 28, and adjusting plate 28 can slide up and down at the cooperation lower edge gathering sill 262 of guiding rib 281 and gathering sill 262.
The structure of described instantaneous adjustment knob 22 as shown in Figure 5, the upper end is provided with a square groove 220, the middle part is for cooperating the rotation draw-in groove 221 that plays installation and turning effort with support 23, the lower end has a spiral camber 223.Square groove 220 is used for being connected instantaneous adjustment knob 22 rotations of drive with outer member, and square groove 220 can insert screwdriver in the present embodiment, drives instantaneous adjustment knob 22 rotations by screwdriver and adjusts the instantaneous setting current of short circuit.
Fig. 6 is for adjusting the mounting structure figure of plate 28 and instantaneous adjustment knob 22, adjusting plate 28 is installed in the base 26, the guiding rib 281 of side is installed in the fixing gathering sill 262, adjusting both sides, plate 28 upper end is pushed down by support 23, spring projection 280 cards of lower end have back-moving spring 30 1 ends, back-moving spring 30 other ends to be stuck on the pedestal lobe 261 of base 26 bottoms; Instantaneous adjustment knob 22 is rack-mount, and the spiral camber 223 of lower end contacts with the knob projection 283 of adjusting plate 28 upper ends.Instantaneous adjustment knob 22 and back-moving spring 30 cooperate can make adjustment plate 28 slide up and down in gathering sill 262, rotates instantaneous adjustment knob 22, and spiral camber 223 extruding knob projectioies 283 move down the adjustment plate; The instantaneous adjustment knob 22 of reverse rotation is adjusted plate and is moved upward under the effect of back-moving spring 30.This adjusts the concrete structure a kind of simple in structure that plate 28 slides for instantaneous adjustment knob 22 makes, also can be with the spiral camber 223 on the instantaneous adjustment knob 22, swap round with the knob projection of adjusting on the plate 28 283, the knob projection 283 that is about to adjust on the plate 28 makes spiral camber into, and make the spiral camber 224 on the instantaneous adjustment knob 22 into eccentric knob projection, also can reach above-mentioned effect.In addition, instantaneous adjustment knob 22 also can be adjusted plate 28 by screw drive and slide, be threaded as instantaneous adjustment knob 22 lower ends and be installed on the support 23, adjust plate 28 upper ends and be provided with screwed hole, instantaneous adjustment knob 22 with adjust plate 28 by being threaded, rotate instantaneous adjustment knob 22 and can drive by curved-line thread path and adjust plate 28 and slide up and down.
The structure of described thermo magnetic trip release device 25 comprises thermal element 250, armature 251, adjustment screw 252, bimetal leaf 253, reaction spring 254 as shown in Figure 7, gusset piece 255, release bracket 256, iron core 257 and axle 258.Described thermal element 250 and gusset piece 255 weld together, and are riveted on the release bracket 256 with bimetal leaf 253, unshakable in one's determination 257 again; Bimetal leaf 253 is provided with adjustment screw 252; Armature 251 and reaction spring 254 are installed on the release bracket 256 by armature shaft 258, and reaction spring 254 acts on armature 251 makes armature 251 rotate to the direction away from unshakable in one's determination 257 around armature shaft 258, leans against on the adjustment inclined-plane 282 of adjusting plate 28.Described joint cover 255 can be used as circuit breaker load termination line terminals, bimetal leaf flexural deformation under heating promotes draw bar 24 rotations when circuit overloads, magnetic field intensity when short circuit in iron core and the armature can increase suddenly, attracts the armature rapid movement to clash into draw bar 24 and makes its rotation.Reaction spring 254 is preferably torsion spring, and it is rack-mount also to can be an end, and an end is installed in the stage clip on the armature 251.
Fig. 8 is for thermo magnetic trip release device 25 and adjust the installation diagram that plate 28 is in contact with one another, and the armature 251 of thermo magnetic trip release device 25 is on the adjustment inclined-plane 282 of adjusting plate 28.When adjusting plate 28 to lower slider, adjustment inclined-plane 281 promotes armature 251 around the direction rotation of armature shaft 258 to close iron core 257, dwindles the electromagnetism gap of 257 of armature 251 and iron cores; When adjustment plate 28 upwards slided, armature 251 rotated to the direction away from unshakable in one's determination 257 under reaction spring 254 effects, increases the electromagnetism gap of 257 of armature 251 and iron cores; Realized adjusting the purpose of instantaneous setting current by the electromagnetism gap between adjustment armature and the iron core.As shown in Figure 8, the utility model can be applied to three-phase breaker, adjust and to be provided with three adjustment inclined-planes 282 on the plate 28, the armature 251 of three thermo magnetic trip release devices 25 that are arranged side by side leans against described three respectively and adjusts on the inclined-plane 282, can adjust each electromagnetism gap of thermo magnetic trip release device 25 mutually by an instantaneous adjustment knob 22 simultaneously with an adjustment plate 28, it is consistent to keep each phase electromagnetism gap to change.In like manner, also can be used for four phase circuit breakers.
The utility model embodiment breaker tripping mechanism realizes that the motion process of the instantaneous setting current adjustment of short circuit is as follows:
Rotate instantaneous adjustment knob 22, spiral camber 223 extruding knob projectioies 283 move down the adjustment plate, adjustment inclined-plane 282 on the adjustment plate 28 drives armature 251 and rotates to the direction near unshakable in one's determination 257 around armature shaft 258, dwindles the electromagnetism gap of 257 of armature 251 and iron cores.
The instantaneous adjustment knob 22 of reverse rotation, the adjustment plate moves upward under the effect of back-moving spring 30, and armature 251 rotates to the direction away from unshakable in one's determination 257 around armature shaft 258 under reaction spring 254 effects, increases the electromagnetism gap of 257 of armature 251 and iron cores.
The inclined-plane on described adjustment inclined-plane 282 can be towards the direction of base 26 bottoms, also can be towards the direction opposite with the bottom.The inclined-plane is during towards the direction of bottom, and the electromagnetism gap between initial condition lower armature and iron core is in maximum rating; When towards the direction opposite with the bottom, the electromagnetism gap between initial condition lower armature and iron core is in minimum state.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that connotation of the present utility model extends out and still belong to protection range of the present utility model.
Claims (10)
1. the breaker tripping mechanism that can adjust the instantaneous setting current of short circuit is characterized in that:
Comprise base (26), thermo magnetic trip release device (25), instantaneous adjustment knob (22), adjust plate (28);
Described adjustment plate (28) is arranged in the base (26), adjust on plate (28) side and base (26) the sidewall opposite position and be respectively equipped with guiding rib and the gathering sill (281,262) that cooperatively interacts, described instantaneous adjustment knob (22) interacts with adjustment plate (28) adjustment plate (28) is slided along gathering sill (262) direction;
Described thermo magnetic trip release device (25) is arranged in the base (26), comprises armature (251), release bracket (256), (257) unshakable in one's determination; Described armature (251) is installed on the release bracket (256) by armature shaft (258), second flexible member (254) acts on armature (251) makes armature (251) rotate to the direction away from (257) unshakable in one's determination around armature shaft (258), leans against on the adjustment inclined-plane (282) of adjusting plate (28) side.
2. breaker tripping mechanism according to claim 1 is characterized in that:
Described instantaneous adjustment knob (22) lower end is provided with the spiral camber (223) that the knob projection (283) middle with adjusting plate (28) one ends cooperates, and described adjustment plate (28) other end is connected with the reseting elastic element (30) that is installed on base (26) bottom.
3. breaker tripping mechanism according to claim 1 is characterized in that:
Described instantaneous adjustment knob (22) drives by being threaded with adjustment plate (28) and adjusts plate (28) slip.
4. breaker tripping mechanism according to claim 1 is characterized in that:
Described breaker tripping mechanism is the three-phase breaker tripping mechanism, and described adjustment plate (28) is provided with three and adjusts inclined-plane (282), and the armature (251) of three thermo magnetic trip release devices (25) that are arranged side by side leans against described three respectively and adjusts on the inclined-plane (282).
5. breaker tripping mechanism according to claim 1 is characterized in that:
The inclined-plane on described adjustment inclined-plane (282) is towards the direction or the direction opposite with the bottom of base (26) bottom.
6. breaker tripping mechanism according to claim 2 is characterized in that:
Described breaker tripping mechanism also comprises the support (23) of fixedlying connected with base (26), and described instantaneous adjustment knob (22) is installed on the support (23), and its middle part is for cooperating the rotation draw-in groove (221) that plays installation and turning effort with support (23).
7. breaker tripping mechanism according to claim 2 is characterized in that:
Described knob projection (283) top is spherical.
8. breaker tripping mechanism according to claim 1 is characterized in that:
Described reseting elastic element (30) is installed on the pedestal lobe (261) of base (26) bottom for compression spring a, end, and the other end is connected with the spring projection (280) that adjustment plate (28) one end card springs are used.
9. breaker tripping mechanism according to claim 1 is characterized in that:
Described second flexible member (254) is a torsion spring.
10. breaker tripping mechanism according to claim 1 is characterized in that: described instantaneous adjustment knob (22) upper end is provided with square groove (220).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201144311U CN203103245U (en) | 2013-03-13 | 2013-03-13 | Circuit breaker tripping mechanism capable of adjusting short-circuit instantaneous setting current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201144311U CN203103245U (en) | 2013-03-13 | 2013-03-13 | Circuit breaker tripping mechanism capable of adjusting short-circuit instantaneous setting current |
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| Publication Number | Publication Date |
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| CN203103245U true CN203103245U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201144311U Expired - Lifetime CN203103245U (en) | 2013-03-13 | 2013-03-13 | Circuit breaker tripping mechanism capable of adjusting short-circuit instantaneous setting current |
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| CN (1) | CN203103245U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319201A (en) * | 2014-10-24 | 2015-01-28 | 大全集团有限公司 | Controllable double air gap electromagnetism tripping device |
| CN104465249A (en) * | 2013-09-24 | 2015-03-25 | 上海电科电器科技有限公司 | Adjustable electromagnetic release |
| CN106158539A (en) * | 2015-04-28 | 2016-11-23 | 上海电科电器科技有限公司 | Electromagnetic protection device |
| CN107424883A (en) * | 2017-06-16 | 2017-12-01 | 罗格朗低压电器（无锡）有限公司 | A kind of Thermomagnetic type current protection system for breaker of plastic casing |
| EP3264438A1 (en) * | 2016-06-27 | 2018-01-03 | Schneider Electric Industries SAS | Thermal trip compensation structure |
| CN108022812A (en) * | 2018-01-18 | 2018-05-11 | 常熟开关制造有限公司(原常熟开关厂） | A kind of breaker with magnetic release |
| CN109390192A (en) * | 2017-08-11 | 2019-02-26 | 浙江正泰电器股份有限公司 | Thermo-magnetic system structure |
| EP3291275A4 (en) * | 2015-04-28 | 2019-02-27 | Seari Electric Technology Co., Ltd. | Thermomagnetic protection device, thermal protection component and magnetic protection component |
| CN111048361A (en) * | 2019-12-28 | 2020-04-21 | 常熟市通润开关厂有限公司 | Thermal release adjusting method of molded case circuit breaker |
| CN113161208A (en) * | 2021-04-19 | 2021-07-23 | 武汉长海电气科技开发有限公司 | Circuit breaker tripping device with setting current adjusting function |
-
2013
- 2013-03-13 CN CN2013201144311U patent/CN203103245U/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465249A (en) * | 2013-09-24 | 2015-03-25 | 上海电科电器科技有限公司 | Adjustable electromagnetic release |
| CN104465249B (en) * | 2013-09-24 | 2016-08-10 | 上海电科电器科技有限公司 | Adjustable electric magnetic release |
| US10008354B2 (en) | 2013-09-24 | 2018-06-26 | Seari Electric Technology Co., Ltd. | Adjustable electromagnetic release |
| CN104319201A (en) * | 2014-10-24 | 2015-01-28 | 大全集团有限公司 | Controllable double air gap electromagnetism tripping device |
| CN106158539A (en) * | 2015-04-28 | 2016-11-23 | 上海电科电器科技有限公司 | Electromagnetic protection device |
| EP3291275A4 (en) * | 2015-04-28 | 2019-02-27 | Seari Electric Technology Co., Ltd. | Thermomagnetic protection device, thermal protection component and magnetic protection component |
| US10204755B2 (en) | 2016-06-27 | 2019-02-12 | Schneider Electric Industries Sas | Thermal trip compensation structure |
| EP3264438A1 (en) * | 2016-06-27 | 2018-01-03 | Schneider Electric Industries SAS | Thermal trip compensation structure |
| CN107424883A (en) * | 2017-06-16 | 2017-12-01 | 罗格朗低压电器（无锡）有限公司 | A kind of Thermomagnetic type current protection system for breaker of plastic casing |
| CN109390192A (en) * | 2017-08-11 | 2019-02-26 | 浙江正泰电器股份有限公司 | Thermo-magnetic system structure |
| CN109390192B (en) * | 2017-08-11 | 2024-05-17 | 浙江正泰电器股份有限公司 | Thermomagnetic system structure |
| CN108022812A (en) * | 2018-01-18 | 2018-05-11 | 常熟开关制造有限公司(原常熟开关厂） | A kind of breaker with magnetic release |
| CN108022812B (en) * | 2018-01-18 | 2023-08-18 | 常熟开关制造有限公司(原常熟开关厂） | Circuit breaker with magnetic release |
| CN111048361A (en) * | 2019-12-28 | 2020-04-21 | 常熟市通润开关厂有限公司 | Thermal release adjusting method of molded case circuit breaker |
| CN111048361B (en) * | 2019-12-28 | 2021-09-24 | 常熟市通润开关厂有限公司 | Thermal release adjusting method of molded case circuit breaker |
| CN113161208A (en) * | 2021-04-19 | 2021-07-23 | 武汉长海电气科技开发有限公司 | Circuit breaker tripping device with setting current adjusting function |
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Assignee: Wenzhou Zhengtai Electrical Technology Co.,Ltd. Assignor: Zhejiang Chint Electrics Co.,Ltd. Contract record no.: X2020330000078 Denomination of utility model: Circuit breaker tripping mechanism with adjustable short circuit instantaneous setting current Granted publication date: 20130731 License type: Common License Record date: 20201021 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |
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| CX01 | Expiry of patent term |