CN113690108B - Double-energy-storage spring release and permanent magnet molded case circuit breaker - Google Patents
Double-energy-storage spring release and permanent magnet molded case circuit breaker Download PDFInfo
- Publication number
- CN113690108B CN113690108B CN202110960329.2A CN202110960329A CN113690108B CN 113690108 B CN113690108 B CN 113690108B CN 202110960329 A CN202110960329 A CN 202110960329A CN 113690108 B CN113690108 B CN 113690108B
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- energy storage
- spring
- elastic piece
- piece
- support
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- 238000004146 energy storage Methods 0.000 title claims abstract description 100
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 16
- 230000009977 dual effect Effects 0.000 claims description 11
- 230000003068 static effect Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 12
- 230000005389 magnetism Effects 0.000 abstract 1
- 230000007246 mechanism Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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
- H01H71/32—Electromagnetic mechanisms having permanently magnetised part
- H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
- H01H71/322—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements with plunger type armature
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
A double energy storage spring release and permanent magnetism moulded case circuit breaker, its characterized in that: the device comprises a fixed bracket, an electromagnetic tripping unit, an energy storage supporting piece, a first energy storage elastic piece, a tripping buckle, a reset elastic piece, an operating rod and a second energy storage elastic piece. The advantages are that: simultaneously, the first energy storage elastic piece and the second energy storage elastic piece are arranged, so that the opening force of the first energy storage elastic piece and the second energy storage elastic piece is greatly increased, the stable and reliable opening action is ensured, the overall layout is reasonable and compact, and the structure is simple.
Description
Technical Field
The invention relates to a molded case circuit breaker, in particular to a double-energy-storage spring release and a permanent-magnet molded case circuit breaker.
Background
The permanent magnet operating mechanism is a novel mechanism used as a substitute for the traditional spring energy storage link mechanism, and generally, the permanent magnet mechanism needs a proper electronic control unit, and the permanent magnet operating mechanism has the functions of providing proper energy for a mechanism coil, and realizing the functions of jump prevention, locking, interface with switch equipment and the like.
At present, a permanent magnet molded case circuit breaker is not provided with a tripping unit, most of the circuit breaker adopts a super capacitor to directly drive a coil of a permanent magnet mechanism, the permanent magnet mechanism is used for realizing opening and closing actions, but the voltage required by the super capacitor is very large, when a circuit generates short-circuit current, the power supply voltage is almost zero, and at the moment, the product cannot play a protective role and cannot cut off the short-circuit current.
However, the conventional small-sized spring release has small opening force, and even if the spring release is added in the permanent magnet molded case circuit breaker, the permanent magnet mechanism is difficult to open, and effective tripping action is difficult to realize.
Disclosure of Invention
In order to overcome the defects of the background technology, the invention provides a double-energy-storage spring release and a permanent magnet molded case circuit breaker.
The invention adopts the technical scheme that: a dual energy storage spring release comprising
A fixed bracket;
the electromagnetic tripping unit is fixedly arranged on the fixed bracket;
the energy storage support piece is arranged on the fixed bracket in a vertical sliding manner;
the first energy storage elastic piece is connected with the energy storage supporting piece and can drive the energy storage supporting piece to slide downwards;
the trip buckle is rotatably arranged on the fixed bracket and is positioned above the energy storage supporting piece, one end of the trip buckle corresponds to the movable iron core of the electromagnetic trip unit, and the other end of the trip buckle can be mutually buckled with the energy storage supporting piece;
the elastic reset piece is connected with the jump buckle and can drive the jump buckle to reset so that one end of the jump buckle moves towards the movable iron core, and the other end of the jump buckle is buckled with the energy storage supporting piece;
the operating rod is hinged with the fixed bracket and is in linkage connection with the energy storage supporting piece;
the second energy storage elastic piece is connected with the operating rod and can drive the operating rod to rotate downwards.
The fixing support comprises a fixing side plate and a U-shaped support, and one side wall of the U-shaped support is fixedly connected with the fixing side plate; the electromagnetic tripping unit is fixedly arranged on the bottom plate of the U-shaped bracket, and the energy storage supporting piece is in sliding fit with the side wall of the U-shaped bracket.
The electromagnetic tripping unit comprises a coil framework, a coil wound on the coil framework, a movable iron core penetrating through the center of the coil framework, a static iron core fixed at the lower end of the coil framework and a permanent magnet, wherein a fixing sheet is connected between the bottom of the electromagnetic tripping unit and a U-shaped bracket, and an upper pressing sheet is connected between the upper end of the electromagnetic tripping unit and the U-shaped bracket.
A spring positioning groove is formed on the energy storage support piece, a spring support plate is correspondingly formed on the fixed support, and a spring positioning boss is formed at the bottom of the spring support plate; the first energy storage elastic piece adopts a spring, one end of the first energy storage elastic piece is arranged in the spring positioning groove, and the other end of the first energy storage elastic piece is sleeved outside the spring positioning boss and abuts against the spring supporting plate.
Two parallel connecting arms are formed at one end of the operating rod, the connecting arms are arranged at two sides of the U-shaped bracket, one end of the connecting arm far away from the operating rod is hinged with the U-shaped bracket, and one end of the connecting arm close to the operating rod is connected through a transmission shaft; the energy storage support piece is provided with two groups of transmission bosses which are arranged at intervals up and down in a protruding mode, and the transmission shaft is arranged between the two groups of transmission bosses.
The second energy storage elastic piece adopts a tension spring, and two ends of the second energy storage elastic piece are respectively connected with the fixed side plate and the operating rod.
The fixed curb plate bottom is formed with the mounting panel in an organic whole, be formed with between fixed curb plate and the mounting panel and be the connecting portion of buckling and be "7" font.
A permanent magnet molded case circuit breaker comprises the double energy storage spring release.
The beneficial effects of the invention are as follows: by adopting the scheme, the first energy storage elastic piece and the second energy storage elastic piece are arranged at the same time, so that the opening degree of the trip is greatly increased, the stable and reliable tripping action is ensured, and the overall layout is reasonable and compact and the structure is simple.
Drawings
Fig. 1 is a schematic structural diagram of a dual energy storage spring release according to an embodiment of the present invention.
Fig. 2 is a schematic view of another angle of a dual energy storage spring release according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a double energy storage spring release according to an embodiment of the present invention after omitting part of the structure.
Fig. 4 is a cross-sectional view of a dual energy storage spring release according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of an energy storage support according to an embodiment of the present invention.
Fig. 6 is a schematic structural view of an operation lever according to an embodiment of the present invention.
Detailed Description
Embodiments of the invention are further described below with reference to the accompanying drawings:
as shown in the figure, the double-energy-storage spring release comprises a fixed bracket 1, an electromagnetic release unit, an energy-storage supporting piece 3, a first energy-storage elastic piece 4, a jump buckle 5, a reset elastic piece 6, an operating rod 7 and a second energy-storage elastic piece 8.
The fixed bracket 1 comprises a fixed side plate 11 and a U-shaped bracket 12.
The bottom of the fixed side plate 11 is integrally provided with a mounting plate 14, the mounting plate 14 is provided with mounting holes, and the fixed support 1 can be fixedly mounted on the inner side wall of the molded case circuit breaker through the mounting plate 14. Wherein, be formed with the connecting portion 111 that the buckling is "7" font between fixed curb plate 11 and the mounting panel 14, so set up can make when installing the fixed curb plate 11 in the moulded case circuit breaker for fixed curb plate 11 can hug closely moulded case circuit breaker's inside wall as far as possible, reduce the whole occupation space of two energy storage spring release, the overall arrangement is more reasonable, can guarantee moreover that mounting panel 14 has sufficient installation connection area again, ensures reliable fixed mounting, convenient operation again simultaneously.
The U-shaped bracket 12 is U-shaped, one side wall of the U-shaped bracket is provided with a mounting part 121 which is bent to be L-shaped, and the U-shaped bracket is fixedly mounted on the fixed side plate 11 through bolts, so that after the U-shaped bracket 12 is mounted on the fixed side plate 11, a space distance exists between the main body part of the U-shaped bracket and the fixed side plate 11, so that the mounting connection of the subsequent operating rod 7 is facilitated.
The electromagnetic tripping unit 2 is fixedly arranged on the bottom plate of the U-shaped bracket 12, the electromagnetic tripping unit 2 comprises a coil framework 21, a coil 22 wound on the coil framework 21, a movable iron core 23 arranged in a penetrating manner at the center of the coil framework 21, a static iron core 24 fixed at the lower end of the coil framework 21 and a permanent magnet 25, the permanent magnet 25 is connected with the bottom of the U-shaped bracket 12, and when the electromagnetic tripping unit works normally, the movable iron core 23 keeps contact with the static iron core 24 under the action of the permanent magnet 25, once a short circuit problem occurs, the movable iron core 23 and the static iron core 24 repel each other, and the movable iron core 23 is rapidly ejected out to realize tripping action.
Wherein, be connected with stationary blade 26 between electromagnetic trip unit 2 bottom and the U type support 12, be connected with last preforming 27 between electromagnetic trip unit 2 upper end and the U type support 12, through stationary blade 26, go up the fixed connection of preforming 27 and U type support 12, restrict electromagnetic trip unit 2 on U type support 12 reliably.
The energy storage support 3 is arranged in the U-shaped bracket 12 and is in up-down sliding fit with two side walls of the U-shaped bracket 12, a spring positioning groove 31 and a lock catch 32 are formed at the upper end of the energy storage support 3, two groups of transmission bosses 33 which are arranged up and down are formed on the side wall of the other side of the energy storage support 3 opposite to the electromagnetic tripping unit 2, and a certain interval distance is formed between the two groups of transmission bosses 33.
The first energy storage elastic piece 4 adopts a spring, a spring supporting plate 13 corresponding to the spring positioning groove 31 is fixedly arranged at the upper end of the U-shaped bracket 12, and a spring positioning boss 131 is formed at the bottom of the spring supporting plate 13; one end of the first energy storage elastic piece 4 is arranged in the spring positioning groove 31, the other end of the first energy storage elastic piece is sleeved outside the spring positioning boss 131 and abuts against the spring supporting plate 13, and the first energy storage elastic piece 4 can drive the energy storage supporting piece 3 to slide downwards.
The trip buckle 5 is rotatably installed on the U-shaped bracket 12 through a rotating shaft and is located above the energy storage supporting piece 3, the trip buckle 5 is L-shaped, one end of the trip buckle 5 corresponds to the movable iron core 23 of the electromagnetic trip unit 2, the other end of the trip buckle can be buckled with the lock catch 32 of the energy storage supporting piece 3, the reset elastic piece 6 is a torsion spring and is arranged on the rotating shaft, and the torsion spring can drive the trip buckle 5 to reset to enable one end of the trip buckle 5 to move towards the movable iron core 23, and the other end of the trip buckle forms buckling with the energy storage supporting piece 3.
The utility model discloses a control lever, including control lever 7, connecting arm 71, control lever 7, transmission shaft 9, energy storage support 3, second energy storage elastic component 8, control lever 7's end connection, the other end is connected with the mounting panel 14 of fixed curb plate 11, can drive control lever 7 to rotate downwards, control lever 7 one end is formed with two parallel arrangement's linking arm 71, linking arm 71 sets up in the both sides of U type support 12, the one end that control lever 7 was kept away from to linking arm 71 is articulated with U type support 12, the one end that control lever 7 was close to control lever 7 passes through transmission shaft 9 to be connected, transmission shaft 9 sets up between two sets of transmission bosses 33, constitutes the linkage with energy storage support 3 and is connected, second energy storage elastic component 8 is the extension spring, its one end and the end connection of control lever 7, the other end is connected with the mounting panel 14 of fixed curb plate 11.
The working principle of the double energy storage spring release is as follows:
when the circuit breaker is switched on, the operating mechanism of the circuit breaker can push the operating rod 7 to rotate upwards, the tension spring is stretched by the rotating action of the operating rod 7 to form a first elastic energy storage effect, the energy storage support 3 is driven to slide upwards along the U-shaped bracket 12 through the transmission shaft 9 while the operating rod 7 rotates upwards, the spring is compressed by the sliding action of the energy storage support 3 to form a second elastic energy storage effect, and after the operating rod 7 and the energy storage support 3 are in place, the lock catch 32 of the energy storage support 3 is buckled with the jump buckle 5;
when faults such as short circuit and the like break out, the movable iron core of the electromagnetic tripping unit 2 acts and can push the trip buckle 5 to rotate, the energy storage supporting piece 3 loses the interaction of the trip buckle 5 and the lock buckle 32, the energy storage supporting piece 3 moves downwards under the action of the spring, the energy storage supporting piece 3 drives the operating rod 7 to rotate downwards through the transmission shaft 9, meanwhile, the operating rod 7 rotates downwards under the action of the tension spring, namely, the spring and the tension spring release elastic force simultaneously, the operating rod 7 is driven to rotate downwards rapidly, and the operating rod 7 dials the operating mechanism of the circuit breaker to enable the breaker to realize break out action.
By adopting the double energy storage spring release, the first energy storage elastic piece and the second energy storage elastic piece are arranged, so that the release force is greatly increased, and the stable and reliable release action is ensured.
The double-energy-storage spring release can be suitable for a permanent magnet molded case circuit breaker, and the permanent magnet mechanism of the permanent magnet molded case circuit breaker can be effectively opened due to the fact that the opening force is very large, so that the double-energy-storage spring release is effective in tripping of products, and the required voltage is very small, so that the problem that the existing permanent magnet molded case circuit breaker cannot trip and trip due to short circuit is solved.
Of course, the double energy storage spring release is not limited to the permanent magnet molded case circuit breaker, and can be applied to other types of molded case circuit breakers.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
The skilled person will know: while the invention has been described in terms of the foregoing embodiments, the inventive concepts are not limited to the invention, and any modifications that use the inventive concepts are intended to be within the scope of the appended claims.
Claims (8)
1. The utility model provides a two energy storage spring release which characterized in that: comprising
A fixed bracket (1);
the electromagnetic tripping unit (2) is fixedly arranged on the fixed bracket (1);
the energy storage support piece (3) is arranged on the fixed bracket (1) in a vertically sliding manner;
the first energy storage elastic piece (4) is connected with the energy storage supporting piece (3) and can drive the energy storage supporting piece (3) to slide downwards;
the jump buckle (5) is rotatably arranged on the fixed bracket (1) and is positioned above the energy storage supporting piece (3), one end of the jump buckle (5) corresponds to the movable iron core (23) of the electromagnetic tripping unit (2), and the other end of the jump buckle can be mutually buckled with the energy storage supporting piece (3);
the reset elastic piece (6) is connected with the jump buckle (5) and can drive the jump buckle (5) to reset so that one end of the jump buckle (5) moves towards the movable iron core (23), and the other end of the jump buckle is buckled with the energy storage supporting piece (3);
the operating rod (7) is hinged with the fixed bracket (1) and is in linkage connection with the energy storage support piece (3);
the second energy storage elastic piece (8) is connected with the operating rod (7) and can drive the operating rod (7) to rotate downwards.
2. The dual energy storage spring release of claim 1, wherein: the fixing support (1) comprises a fixing side plate (11) and a U-shaped support (12), wherein one side wall of the U-shaped support (12) is fixedly connected with the fixing side plate (11); the electromagnetic tripping unit (2) is fixedly arranged on the bottom plate of the U-shaped bracket (12), and the energy storage supporting piece (3) is in sliding fit with the side wall of the U-shaped bracket (12).
3. The dual energy storage spring release of claim 2, wherein: the electromagnetic tripping unit (2) comprises a coil framework (21), a coil (22) wound on the coil framework (21), a movable iron core (23) penetrating through the center of the coil framework (21), a static iron core (24) fixed at the lower end of the coil framework (21) and a permanent magnet (25), wherein a fixing sheet (26) is connected between the bottom of the electromagnetic tripping unit (2) and the U-shaped support (12), and an upper pressing sheet (27) is connected between the upper end of the electromagnetic tripping unit (2) and the U-shaped support (12).
4. The dual energy storage spring release of claim 1, wherein: a spring positioning groove (31) is formed on the energy storage support piece (3), a spring support plate (13) is correspondingly formed on the fixed support (1), and a spring positioning boss (131) is formed at the bottom of the spring support plate (13); the first energy storage elastic piece (4) adopts a spring, one end of the first energy storage elastic piece is arranged in the spring positioning groove (31), and the other end of the first energy storage elastic piece is sleeved outside the spring positioning boss (131) and abuts against the spring supporting plate (13).
5. The dual energy storage spring release of claim 2, wherein: two parallel connecting arms (71) are formed at one end of the operating rod (7), the connecting arms (71) are arranged at two sides of the U-shaped bracket (12), one end of the connecting arms (71) far away from the operating rod (7) is hinged with the U-shaped bracket (12), and one end of the connecting arms (71) close to the operating rod (7) is connected through a transmission shaft (9); two groups of transmission bosses (33) are arranged on the energy storage support piece (3) at intervals in an up-down mode, and the transmission shaft (9) is arranged between the two groups of transmission bosses (33).
6. The dual energy storage spring release of claim 5, wherein: the second energy storage elastic piece (8) adopts a tension spring, and two ends of the second energy storage elastic piece are respectively connected with the fixed side plate (11) and the operating rod (7).
7. The dual energy storage spring release of claim 2, wherein: the bottom of the fixed side plate (11) is integrally provided with a mounting plate (14), and a connecting part (111) which is bent into a 7 shape is formed between the fixed side plate (11) and the mounting plate (14).
8. A permanent magnet molded case circuit breaker is characterized in that: a dual energy storage spring release comprising the apparatus of any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110960329.2A CN113690108B (en) | 2021-08-20 | 2021-08-20 | Double-energy-storage spring release and permanent magnet molded case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110960329.2A CN113690108B (en) | 2021-08-20 | 2021-08-20 | Double-energy-storage spring release and permanent magnet molded case circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113690108A CN113690108A (en) | 2021-11-23 |
| CN113690108B true CN113690108B (en) | 2023-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110960329.2A Active CN113690108B (en) | 2021-08-20 | 2021-08-20 | Double-energy-storage spring release and permanent magnet molded case circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113690108B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201112303Y (en) * | 2007-09-27 | 2008-09-10 | 温州奥来电器有限公司 | Accumulated energy type high subsection small circuit breaker |
| CN109979785A (en) * | 2019-03-22 | 2019-07-05 | 上海电器科学研究院 | A kind of breaker with combined floodgate stored energy mechanism |
| CN210110681U (en) * | 2019-05-08 | 2020-02-21 | 冯伟通 | Electromagnetic trip and electric leakage circuit breaker with same |
-
2021
- 2021-08-20 CN CN202110960329.2A patent/CN113690108B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201112303Y (en) * | 2007-09-27 | 2008-09-10 | 温州奥来电器有限公司 | Accumulated energy type high subsection small circuit breaker |
| CN109979785A (en) * | 2019-03-22 | 2019-07-05 | 上海电器科学研究院 | A kind of breaker with combined floodgate stored energy mechanism |
| CN210110681U (en) * | 2019-05-08 | 2020-02-21 | 冯伟通 | Electromagnetic trip and electric leakage circuit breaker with same |
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| Publication number | Publication date |
|---|---|
| CN113690108A (en) | 2021-11-23 |
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