CN110233090B - Thermomagnetic double-adjustable molded case circuit breaker - Google Patents
Thermomagnetic double-adjustable molded case circuit breaker Download PDFInfo
- Publication number
- CN110233090B CN110233090B CN201910528646.XA CN201910528646A CN110233090B CN 110233090 B CN110233090 B CN 110233090B CN 201910528646 A CN201910528646 A CN 201910528646A CN 110233090 B CN110233090 B CN 110233090B
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- adjustable
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- thermal
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- cover
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- 238000001746 injection moulding Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 3
- 230000009977 dual effect Effects 0.000 description 4
- 230000002265 prevention Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- H01H71/02—Housings; Casings; Bases; Mountings
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
The utility model provides a thermomagnetic double adjustable moulded case circuit breaker, it includes base, well lid and upper cover are constituteed, upper cover intermediate position is protruding form to vertically set up a switch hole in the centre, its switch hole both sides are equipped with the indent and are rectangular trade mark subsides mouth, the upper and lower both sides of upper cover intermediate position transversely arrange and be the rectangular shape working face of indent, be equipped with the adjustable operating panel of taking the shield in the working face down, be equipped with two button holes that place adjustable knob and use on the operating panel, be equipped with the screw hole groove that is arranged in connecting well lid in the working face of going up, a small, the big thermomagnetic double adjustable moulded case circuit breaker of capacity satisfies market demand. The thermomagnetic adjustable system uses a pi-type thermomagnetic double adjustable lever bracket structure, and well fills the market defect that the existing product cannot realize the thermomagnetic double adjustable function due to the small volume.
Description
Technical Field
The utility model belongs to the technical field of circuit breakers, and particularly relates to a thermo-magnetic double-adjustable molded case circuit breaker.
Background
In low-voltage electrical appliances, a molded case circuit breaker is a product with a large range, the application frequency in a low-voltage distribution system is very high, the molded case circuit breaker not only bears the function of power supply of a distribution line, but also plays a double role in protecting and controlling a circuit, the safety, the reliability and the practicability of the whole line system are very important, and along with the technical progress of the distribution system, the thermomagnetic double-adjustable molded case circuit breaker is increasingly used, and in fact, manufacturers at home and abroad are constantly striving to improve and improve the technical level of the thermomagnetic molded case circuit breaker.
The existing thermomagnetic double-adjustable tripping system of the molded case circuit breaker mainly comprises a thermomagnetic adjustable lever, a thermomagnetic tripping system, a lever bracket, a thermomagnetic adjustable knob and a thermomagnetic adjustable knob, and because the structural characteristics of the thermomagnetic adjustable lever (a long rod-shaped) part determine that the thermomagnetic adjustable lever can deform in the production injection molding process, the adjustable performance of a product is unstable.
Disclosure of Invention
The utility model aims to overcome the defects existing in the prior art, and provides the thermomagnetic double-adjustable plastic shell circuit breaker with small volume and large capacity, which is developed at present to meet the market demand. The thermomagnetic adjustable system uses a pi-type thermomagnetic double adjustable lever bracket structure, and well fills the market defect that the existing product cannot realize the thermomagnetic double adjustable function due to the small volume.
The utility model discloses a thermomagnetic double-adjustable molded case circuit breaker, which comprises a base, a middle cover and an upper cover, wherein the middle position of the upper cover is in a convex shape, a switch hole is vertically arranged in the middle, two sides of the switch hole are provided with concave rectangular trademark pasting ports, the upper side and the lower side of the middle position of the upper cover are transversely arranged to form concave strip-shaped working surfaces, an adjustable operation panel with a dustproof cover is arranged in the lower working surface, two button holes for placing adjustable knobs are arranged on the operation panel, screw hole grooves for connecting the middle cover are arranged in the upper working surface, uniformly arranged antistatic holes are arranged between the two screw hole grooves, buckles for connecting the middle cover are arranged at the bottom of the upper cover, the buckles are connected with the buckle grooves at the two sides of the middle cover, connecting holes for connecting wires are arranged at the upper end and the lower end of the middle cover, the middle of the connecting hole is provided with a through hole for connecting a screw hole of the upper cover, the lower end connecting hole is arranged on a working surface which is concave downwards, the middle position of the middle cover is provided with a vertical switch hole through hole corresponding to the switch hole of the upper cover, two sides of the middle cover are provided with concave accessory grooves, the lower part of the switch hole of the middle position is provided with a through hole for directly connecting the button hole for the adjustable knob of the upper cover, the middle of the base is provided with a vertical switch, the central positions of the switch hole and the switch through hole of the middle cover and the upper cover are consistent, the upper side of the vertical switch is provided with an arc extinguishing chamber body, the lower side of the vertical switch is provided with a thermomagnetic double-adjustable tripping system, two ends of the vertical switch are respectively provided with screw holes for fixing, the vertical switch through holes correspond to the screw holes of the middle cover and the upper cover, and two side shells of the base are also provided with wear-resistant pattern layers for anti-static and anti-skid.
As preferable: the thermomagnetic double-adjustable shedding system comprises a thermomagnetic adjustable lever bracket arranged on a positioning groove in a base, wherein the thermomagnetic adjustable lever bracket is of a pi-shaped structure, an opening of the lever bracket faces downwards, and the middle of the upper end plane is hollow, so that shrinkage deformation is prevented in the injection molding process; holes for matching the thermal and magnetic adjustable knobs are respectively arranged at two ends, arc-shaped positioning matched with the adjustable knobs is arranged at the periphery of the holes, and an arc-shaped positioning groove matched with the magnetic adjusting rod is arranged at one side of the thermal and magnetic adjustable lever bracket; the bottom of the magnetic adjusting rod is provided with 3 circular hooks for hanging the spring, and an armature is hung under the spring, the armature is arranged into a zigzag structure which is inclined upwards for saving space, the magnetic tripping function is realized in a narrow space, the magnetic adjusting rod is convex, and the upper end face of the magnetic adjusting rod is of an arc structure, so that the magnetic adjusting rod is matched with the lever bracket and cannot move up and down at random, and the accuracy and the stability of the magnetic tripping function are ensured; the front of the left end is provided with a convex positioning column which is matched with a magnetic tripping knob to realize a magnetic adjustable function, the other side of the thermal magnetic adjustable lever bracket is provided with an arc-shaped positioning groove matched with a thermal adjusting rod, the thermal adjusting rod is internally provided with a tripping rod, the right end of the tripping rod is provided with an outer tooth form which is used for being matched with a tooth form structure in the right end of the thermal adjusting rod in a positioning way, the tripping rod is prevented from rotating at will, and the tripping rod is also provided with a sliding rail matched with a boss on the right end of the thermal adjusting rod to realize free sliding during thermal adjustment, and the thermal adjusting rod is also provided with an adjustable step and a positioning hole for positioning the thermal adjustable knob small column.
As preferable: the lower end of the magnetic adjustable knob is of a cylindrical spiral upward structure, the middle of the magnetic adjustable knob is hollow, in order to be matched with the magnetic adjustable rod to realize a magnetic adjustable function, the lower end of the thermal adjustable knob is provided with an extending small column, and in order to be matched with the thermal adjustable rod to realize a thermal adjustable function.
As preferable: the magnetic adjustable knob and the thermal adjustable knob respectively penetrate through the through holes of the button holes for the adjustable knob of the middle cover, are arranged in the button holes for the adjustable knob of the lower working surface of the upper cover, and are arranged in parallel on the working surface of the upper cover.
The utility model realizes the thermal and magnetic double adjustable tripping function on the basis of the existing product, and realizes the thermal and magnetic double adjustable tripping function which can not be realized in a narrow space by using a pi-shaped structure thermal and magnetic adjustable bracket, so that the assembly is very convenient, and meanwhile, the product can be assembled and switched between the functions of 'fixing' and 'thermal and magnetic double adjustable'.
Drawings
FIG. 1 is a structural isometric view of a first embodiment of a thermomagnetic dual adjustable trip structure for a molded case circuit breaker of the present utility model;
FIG. 2 is a cross-sectional view of an embodiment one of a thermo-magnetic dual trip structure of a molded case circuit breaker of the present utility model;
FIG. 3 is an assembled isometric view of a thermo-magnetic dual adjustable trip structure;
FIG. 4 is an oblique rear view of the thermo-magnetic dual adjustable trip structure;
FIG. 5 is an isometric view of a thermomagnetic trip lever bracket;
FIG. 6 is an isometric view of a magnetically adjustable lever;
FIG. 7 is an isometric view of a trip bar;
fig. 8 is an isometric view of a thermal adjustment lever.
Detailed Description
The utility model will be described in detail below with reference to the attached drawings: 1-8, a thermomagnetic double-adjustable molded case circuit breaker comprises a base 10, a middle cover 9 and an upper cover 8, wherein the middle position of the upper cover 8 is in a convex shape, a switch hole 81 is vertically arranged in the middle, two sides of the switch hole 81 are provided with concave rectangular trademark pasting ports 82, the upper side and the lower side of the middle position of the upper cover 8 are transversely arranged to form concave strip-shaped working surfaces 83, an adjustable operation panel 85 with a dust cover 84 is arranged in the lower working surface, two button holes 86 for placing adjustable knobs are arranged on the operation panel 85, screw hole grooves 87 for connecting the middle cover are arranged in the upper working surface, uniformly arranged antistatic holes 88 are arranged between the two screw hole grooves, a buckle 89 for connecting the middle cover is arranged at the bottom of the upper cover 8, the buckle 89 is connected with buckle grooves 91 on two sides of the middle cover, the upper and lower ends of the middle cover 9 are provided with connecting holes 92 for connecting wires, a through hole 93 for connecting screw holes of the upper cover is arranged in the middle of the connecting holes 92, the lower end connecting holes are arranged on a downward concave working surface, the middle of the middle cover 9 is provided with vertical switch hole through holes 94 corresponding to the switch holes 81 of the upper cover 8, two sides of the middle cover 9 are provided with concave accessory grooves 95, a through hole 96 for connecting a button hole for an adjustable knob of the upper cover is arranged below the switch holes of the middle position, the middle of the base 10 is provided with a vertical switch 101, the center positions of the vertical switch and the switch holes 91 and the switch through holes 94 of the middle cover 8 and the upper cover 9 are consistent, the upper side of the vertical switch is provided with an arc extinguishing chamber 102, the lower side of the vertical switch is provided with a thermomagnetic double-adjustable tripping system 103, two ends of the vertical switch are provided with screw holes 104 for fixing corresponding to the screw holes 86 of the middle cover 9 and the upper cover 8, the outer shells on two sides of the base 10 are also provided with wear-resistant pattern layers 105 for static electricity prevention and skid prevention.
The thermomagnetic double-adjustable shedding system comprises a thermomagnetic adjustable lever bracket 2 arranged on a positioning groove 55 in a base 10, wherein the thermomagnetic adjustable lever bracket 2 is of a pi-shaped structure, an opening of the lever bracket faces downwards, and the middle of an upper end plane is hollow, so that shrinkage deformation is prevented in the injection molding process; holes 62 for matching the thermal and magnetic adjustable knobs are respectively arranged at two ends, arc-shaped positioning 61 matched with the adjustable knobs are arranged at the periphery of the holes, and arc-shaped positioning grooves 63 matched with the magnetic adjusting rod 1 are arranged at one side of the thermal and magnetic adjustable lever bracket 2; the bottom of the magnetic adjusting rod 1 is provided with 3 circular hooks 67 for hanging springs, and an armature 3 is hung below the springs, the armature 3 is arranged in a zigzag structure which is inclined upwards to save space, and a magnetic tripping function is realized in a narrow space, the position 67 for hanging the springs of the magnetic adjusting rod is a convex circle, and the section 66 of the rod is in an arc structure, so that the magnetic adjusting rod can not move up and down at random when being matched with a lever bracket, and the accuracy and the stability of the magnetic tripping function are ensured; the front of the left end is provided with a convex positioning column 65 matched with a magnetic tripping knob to realize a magnetic adjustable function, the other side of the thermal magnetic adjustable lever bracket 2 is provided with an arc positioning groove matched with the thermal adjusting lever 5, the thermal adjusting lever 5 is internally provided with a tripping lever 4, the right end of the tripping lever 4 is provided with an external tooth form 69 for being matched with a tooth form structure 70 in the upper right end of the thermal adjusting lever 5 in a positioning way, random rotation is prevented, the tripping lever 4 is also provided with a sliding rail 68 matched with a boss 72 in the right end of the thermal adjusting lever for realizing free sliding during thermal adjustment, the thermal adjusting lever 5 is also provided with an adjustable step 73 and a positioning hole 71 for positioning a small column 75 of the thermal adjusting knob, the lower end of the magnetic adjusting knob 6 is provided with a columnar spiral upward structure 73, the middle of the magnetic adjusting knob 6 is designed with a hollow 74, the lower end of the thermal adjusting knob 7 is provided with a small column 75 matched with the magnetic adjusting lever 1 for realizing the magnetic adjustable function, and the lower end of the thermal adjusting knob 7 is provided with the thermal adjusting lever, and the thermal adjusting knob 4 is provided with a through hole in parallel to the upper working face of the thermal adjusting knob 7 and the thermal adjusting knob 6.
Preferred embodiments: the structure of the thermal and magnetic dual-adjustable tripping system in the third embodiment is composed of a thermal and magnetic adjustable lever bracket 2, a magnetic adjusting rod 1, a thermal adjusting rod 5, a thermal adjustable knob 6, a magnetic adjustable knob 7, a tripping rod 4 and a thermal and magnetic tripping system, wherein an armature is riveted on a U-shaped armature bracket of the magnetic tripping system, the riveted magnetic conduction system, a welded thermal element and a conductive unit are further assembled together, the thermal and magnetic tripping assembly unit and a rotating shaft are assembled together and then fixed on a base 10 to form a molded case circuit breaker body unit, as shown in the first embodiment, two side walls 64 of the thermal and magnetic dual-adjustable lever bracket 2 are inserted into positioning grooves 55 corresponding to the base with the number 11, the thermal adjusting rod 5 is sleeved on the tripping rod with the number 4 in parallel in a tooth-shaped meshing direction, the tripping rod can move freely along a rod-direction sliding rail 68, the tripping rod 4 is fixed on the molded case circuit breaker body with the lever bracket 2 by screws, the magnetic adjusting rod 1 is clamped in an arc groove corresponding to the lever bracket 2, so that the thermal and magnetic adjusting rod 1 can rotate freely and axially, and then the spring is hung on the armature space of the molded case circuit breaker.
The heat adjustable knob 6 and the magnetic adjustable knob 7 are sequentially clamped in a hole 62 of the lever bracket 2 to form movable connection with the lever bracket, and arc convex points arranged on the two knobs are matched with an arc groove 61 on the upper end surface of the bracket to be capable of freely rotating; the cylindrical spiral hollow structure 74 at the lower end of the magnetic adjusting knob with the number 7 is matched with the convex column 65 of the magnetic adjusting rod 1, so that the magnetic adjusting rod can freely move left and right when the magnetic adjusting knob rotates; the small column 75 protruding from the lower end of the thermal adjusting knob 6 is matched with the thermal adjusting rod 5, when the thermal adjusting knob rotates, the thermal adjusting rod can freely slide in the rod direction, the thermomagnetic double adjustable middle cover 9 and the upper cover 8 are sequentially matched and installed on the body, in other embodiments, the thermal and magnetic double adjustable lever bracket can be arranged to be directly sealed by positioning grooves used on two sides of the base instead of inserting two side walls into the base, the bracket is only made into the upper half section, and then the bracket is connected to the body in other modes, such as fixing by screws.
It should be clearly understood that the above-mentioned embodiments are only illustrative of the present utility model and not limiting the scope of the present utility model, and any modification of the decoration, the proportion and the adjustment of the size of any structure without exceeding the concept of the present utility model falls within the scope of the protection of the present utility model without affecting the efficacy and the objects achieved by the present utility model.
Claims (3)
1. The thermomagnetic double-adjustable molded case circuit breaker comprises a base, a middle cover and an upper cover, and is characterized in that the middle position of the upper cover is in a convex shape, a switch hole is vertically arranged in the middle, two concave rectangular trademark pasting openings are arranged at the two sides of the switch hole, a strip-shaped working surface which is concave is transversely arranged at the upper side and the lower side of the middle position of the upper cover, an adjustable operation panel with a dust cover is arranged in the lower working surface, two button holes for placing adjustable knobs are arranged on the operation panel, screw hole grooves for connecting the middle cover are arranged in the upper working surface, uniformly arranged antistatic holes are arranged in the middle of the two screw hole grooves, buckles for connecting the two sides of the middle cover are arranged at the bottom of the upper cover, connecting holes for connecting wires are arranged at the upper and lower ends of the middle cover, through holes for connecting the upper cover are arranged in the middle of the connecting holes, the lower end connecting holes are arranged on the downward concave working surface, two corresponding switch holes for connecting the upper cover are arranged at the middle position of the middle cover, two vertical switch holes for connecting the upper cover are arranged on the upper cover, a corresponding to the upper cover is provided with a vertical switch hole, a straight-through hole cover is arranged at the upper cover is arranged at the two sides of the upper cover, a corresponding to the upper cover is provided with a vertical through hole, a base is arranged at the two sides of the upper cover is provided with a vertical hole cover, and a corresponding to the upper cover is provided with a vertical cover, and a vertical cover is arranged at the two side of the upper cover is provided with a vertical cover, and a vertical cover is provided with a vertical cover; the thermomagnetic double-adjustable shedding system comprises a thermomagnetic adjustable lever bracket arranged on a positioning groove in a base, wherein the thermomagnetic adjustable lever bracket is of a pi-shaped structure, an opening of the lever bracket faces downwards, and the middle of the upper end plane is hollow, so that shrinkage deformation is prevented in the injection molding process; holes for matching the thermal and magnetic adjustable knobs are respectively arranged at two ends, arc-shaped positioning matched with the adjustable knobs is arranged at the periphery of the holes, and an arc-shaped positioning groove matched with the magnetic adjusting rod is arranged at one side of the thermal and magnetic adjustable lever bracket; the bottom of the magnetic adjusting rod is provided with 3 circular hooks for hanging the spring, and an armature is hung under the spring, the armature is arranged into a zigzag structure which is inclined upwards for saving space, the magnetic tripping function is realized in a narrow space, the magnetic adjusting rod is convex, and the upper end face of the magnetic adjusting rod is of an arc structure, so that the magnetic adjusting rod is matched with the lever bracket and cannot move up and down at random, and the accuracy and the stability of the magnetic tripping function are ensured; the front of the left end is provided with a convex positioning column which is matched with a magnetic tripping knob to realize a magnetic adjustable function, the other side of the thermal magnetic adjustable lever bracket is provided with an arc-shaped positioning groove matched with a thermal adjusting rod, the thermal adjusting rod is internally provided with a tripping rod, the right end of the tripping rod is provided with an outer tooth form which is used for being matched with a tooth form structure in the right end of the thermal adjusting rod in a positioning way, the tripping rod is prevented from rotating at will, and the tripping rod is also provided with a sliding rail matched with a boss on the right end of the thermal adjusting rod to realize free sliding during thermal adjustment, and the thermal adjusting rod is also provided with an adjustable step and a positioning hole for positioning the thermal adjustable knob small column.
2. The thermomagnetic double-adjustable molded case circuit breaker according to claim 1, wherein the lower end of the magnetic adjustable knob is of a cylindrical spiral upward structure, the middle of the magnetic adjustable knob is of a hollow design, and the lower end of the thermal adjustable knob is provided with an extended small column for being matched with the thermal release rod to realize a thermal adjustable function.
3. The thermomagnetic double-adjustable molded case circuit breaker according to claim 2, wherein the magnetic adjustable knob and the thermal adjustable knob respectively pass through holes of knob holes for the adjustable knob of the middle cover, are placed in the knob holes for the adjustable knob of the lower working surface of the upper cover, and are arranged in parallel with the working surface of the upper cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910528646.XA CN110233090B (en) | 2019-06-18 | 2019-06-18 | Thermomagnetic double-adjustable molded case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910528646.XA CN110233090B (en) | 2019-06-18 | 2019-06-18 | Thermomagnetic double-adjustable molded case circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110233090A CN110233090A (en) | 2019-09-13 |
| CN110233090B true CN110233090B (en) | 2024-04-02 |
Family
ID=67859710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910528646.XA Active CN110233090B (en) | 2019-06-18 | 2019-06-18 | Thermomagnetic double-adjustable molded case circuit breaker |
Country Status (1)
| Country | Link |
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| CN (1) | CN110233090B (en) |
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|---|---|---|---|---|
| EP1261008A1 (en) * | 2001-05-22 | 2002-11-27 | Gewiss S.P.A. | Enclosed magnetothermal electric circuit breaker |
| US6750743B1 (en) * | 2003-05-13 | 2004-06-15 | General Electric Company | Integrated thermal and magnetic trip unit |
| CN101685728A (en) * | 2008-09-26 | 2010-03-31 | 浙江正泰电器股份有限公司 | Thermomagnetic tripper of breaker |
| CN102439678A (en) * | 2009-03-31 | 2012-05-02 | 西门子公司 | Release for an electric switching arrangement |
| CN104882340A (en) * | 2014-02-28 | 2015-09-02 | 西门子公司 | Knob element and slide element of an adjusting apparatus and adjusting apparatus and method for adjusting a position of a thermal tripping shaft |
| WO2016173463A1 (en) * | 2015-04-28 | 2016-11-03 | 上海电科电器科技有限公司 | Thermomagnetic protection device, thermal protection component and magnetic protection component |
| CN205984841U (en) * | 2016-06-28 | 2017-02-22 | 上海通用广电电力元件有限公司 | Mechanism of thermomagnetic formula moulded case circuit breaker's demonstration circuit fault type |
| CN207834234U (en) * | 2018-01-18 | 2018-09-07 | 常熟开关制造有限公司(原常熟开关厂） | A kind of breaker with magnetic release |
| CN108648969A (en) * | 2018-06-28 | 2018-10-12 | 美高电气科技有限公司 | A kind of double breaking points miniature circuit breaker |
| CN209963003U (en) * | 2019-06-18 | 2020-01-17 | 美高电气科技有限公司 | Thermomagnetic double-adjustable molded case circuit breaker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10079132B1 (en) * | 2017-03-01 | 2018-09-18 | Siemens Industry, Inc. | Systems, apparatus, and methods for electric circuit breaker tripping |
-
2019
- 2019-06-18 CN CN201910528646.XA patent/CN110233090B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1261008A1 (en) * | 2001-05-22 | 2002-11-27 | Gewiss S.P.A. | Enclosed magnetothermal electric circuit breaker |
| US6750743B1 (en) * | 2003-05-13 | 2004-06-15 | General Electric Company | Integrated thermal and magnetic trip unit |
| CN101685728A (en) * | 2008-09-26 | 2010-03-31 | 浙江正泰电器股份有限公司 | Thermomagnetic tripper of breaker |
| CN102439678A (en) * | 2009-03-31 | 2012-05-02 | 西门子公司 | Release for an electric switching arrangement |
| CN104882340A (en) * | 2014-02-28 | 2015-09-02 | 西门子公司 | Knob element and slide element of an adjusting apparatus and adjusting apparatus and method for adjusting a position of a thermal tripping shaft |
| WO2016173463A1 (en) * | 2015-04-28 | 2016-11-03 | 上海电科电器科技有限公司 | Thermomagnetic protection device, thermal protection component and magnetic protection component |
| CN205984841U (en) * | 2016-06-28 | 2017-02-22 | 上海通用广电电力元件有限公司 | Mechanism of thermomagnetic formula moulded case circuit breaker's demonstration circuit fault type |
| CN207834234U (en) * | 2018-01-18 | 2018-09-07 | 常熟开关制造有限公司(原常熟开关厂） | A kind of breaker with magnetic release |
| CN108648969A (en) * | 2018-06-28 | 2018-10-12 | 美高电气科技有限公司 | A kind of double breaking points miniature circuit breaker |
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| Publication number | Publication date |
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| CN110233090A (en) | 2019-09-13 |
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