CN117558592A - Small-sized automatic reclosing circuit breaker - Google Patents
Small-sized automatic reclosing circuit breaker Download PDFInfo
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- CN117558592A CN117558592A CN202311779016.2A CN202311779016A CN117558592A CN 117558592 A CN117558592 A CN 117558592A CN 202311779016 A CN202311779016 A CN 202311779016A CN 117558592 A CN117558592 A CN 117558592A
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- fixed shell
- rotating
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- 239000002184 metal Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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
-
- 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
- H01H71/66—Power reset mechanisms
- H01H71/70—Power reset mechanisms actuated by electric motor
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- Breakers (AREA)
Abstract
The invention relates to the technical field of circuit breakers, in particular to a small automatic reclosing circuit breaker which comprises a fixed shell, wherein a manual closing wrench is connected to the fixed shell, a square shaft is connected to the manual closing wrench, a driven closing wrench is connected to the side wall of the square shaft, a gear driving assembly is connected to the driven closing wrench and is positioned in an inner cavity of the fixed shell, a driving pull rod is connected to the manual closing wrench, a rotary connecting block is connected to the other end of the driving pull rod, and a linkage shaft is connected to the rotary connecting block.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to a small automatic reclosing circuit breaker.
Background
With the development of intelligent power grids in China, on the premise of requiring safe operation of the power grids, the intelligent realization of electric appliances is more and more eager, and small circuit breakers capable of automatically reclosing are greatly developed, and various transmission mechanisms and linkage devices emerge;
especially, the integrated 36mm wide small reclosing device is limited by small space, so that when the product development of the reclosing device of the small circuit breaker is carried out, one key technical point is that a transmission mechanism in the device is matched with an operating mechanism, so that the device can accurately and reliably open and close, the situation that the small circuit breaker cannot be well tripped in a linkage way due to overlarge output stroke of the transmission mechanism is avoided, and meanwhile, the small circuit breaker cannot be normally opened and closed due to the fact that the linkage device does not return to a designated position after tripping, and a user cannot normally use electricity;
the circuit breaker that can not pinpoint is opened and closed when the time division of linkage is closed, and simultaneously because the material can be because of the influence of temperature humidity changes the phenomenon that has the card to be blocked unsmooth in each link mechanism axle under the different service environment of product inner space restriction to influence the normal closing of circuit breaker, to above problem, need provide a small-size automatic reclosing circuit breaker.
Disclosure of Invention
The invention aims to provide a miniature automatic reclosing circuit breaker so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the small automatic reclosing circuit breaker comprises a fixed shell, wherein a manual closing wrench is connected to the fixed shell, a square shaft is connected to the manual closing wrench, a driven closing wrench is connected to the side wall of the square shaft, a gear driving assembly is connected to the inner cavity of the fixed shell and positioned on the driven closing wrench, a driving pull rod is connected to the manual closing wrench, a rotary connecting block is connected to the other end of the driving pull rod, a linkage shaft is connected to the rotary connecting block, a closing rotary contact piece is connected to the other end of the linkage shaft, and a closing fixed contact piece is arranged in the inner cavity of the fixed shell and corresponds to the closing rotary contact piece;
the gear driving assembly comprises a driving motor, the driving motor is connected in an inner cavity of a fixed shell, a driving end of the driving motor is connected with a driving worm through a coupler, a first-stage driven worm wheel is connected to the side wall of the driving worm in a meshed mode, a second-stage driven gear is connected to the bottom of the first-stage driven worm wheel, a first-stage rotating gear is connected to the side wall of the second-stage driven gear in a meshed mode, a second-stage rotating gear is connected to the end face of the first-stage rotating gear in a meshed mode, a first-stage tripping gear is connected to the side wall of the second-stage tripping gear in a meshed mode, a handle gear is connected to the side wall of a driven closing wrench in a meshed mode, a rotating cam is connected to the bottom of the first-stage tripping gear in a meshed mode, a tripping push rod is connected to one side of the rotating cam and located in the inner cavity of the fixed shell, and the tripping push rod is arranged on one side of a closing rotary contact piece.
As a preferable scheme of the invention, two ends of the square shaft are connected to the side wall of the inner cavity of the fixed shell through rotating shafts, wherein the rotating shafts are connected with the side wall of the inner cavity of the fixed shell in a rotating way, and the side wall of the rotating connecting block is provided with L-pole electrical contacts.
In a preferred embodiment of the present invention, one end of the linkage shaft penetrates through the rotary joint block and is connected to the connecting hole on the side wall of the inner cavity of the fixed housing, wherein the linkage shaft is connected with the connecting hole in a rotary manner.
As a preferable scheme of the invention, the switching-on rotary contact piece is connected in a connecting hole of the inner cavity side wall of the fixed shell through a rotary shaft, wherein the connecting mode of the rotary shaft and the connecting hole of the inner cavity side wall of the fixed shell is rotary connection, one end of the switching-on rotary contact piece is provided with an N-pole electrical contact, and a metal contact piece is arranged at a position where the N-pole electrical contact is contacted with the switching-on fixed contact piece.
As a preferable scheme of the invention, one end of the closing fixed contact piece is connected with an electrode connection port through a wire, and the driving motor is connected with the signal output end of the circuit board through a wire and is electrically connected.
As a preferable scheme of the invention, the centers of the primary driven worm wheel and the secondary driven gear are connected in the connecting hole of the inner cavity side wall of the fixed shell through a rotating shaft, wherein the connecting mode of the rotating shaft and the connecting hole of the inner cavity side wall of the fixed shell is rotary connection.
As a preferable scheme of the invention, the centers of the primary rotating gear and the secondary rotating gear are connected in the connecting hole of the inner cavity side wall of the fixed shell through the rotating shaft, wherein the connecting mode of the rotating shaft and the connecting hole of the inner cavity side wall of the fixed shell is rotary connection.
As a preferable scheme of the invention, the centers of the primary tripping gear and the secondary tripping gear are connected in the connecting hole of the side wall of the inner cavity of the fixed shell through a rotating shaft, wherein the connecting mode of the rotating shaft and the connecting hole of the side wall of the inner cavity of the fixed shell is rotary connection.
As a preferable scheme of the invention, the tripping push rod is connected in the connecting hole of the side wall of the inner cavity of the fixed shell through the rotating shaft, wherein the connecting mode of the rotating shaft and the connecting hole of the side wall of the inner cavity of the fixed shell is rotary connection, and an arc-shaped limiting groove is arranged on the side wall of the inner cavity of the fixed shell and corresponds to the tripping push rod.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the gear driving assembly is arranged in the small automatic reclosing circuit breaker, so that the design that the circuit breaker can realize automatic reclosing is realized by utilizing the driving motor in the gear driving assembly through the transmission structure, and therefore, in the using process of the small automatic reclosing circuit breaker, the micro switch can be positioned by positioning when the small automatic reclosing circuit breaker is in linkage time division closing, the position is accurate, the circuit breaker is driven to open and close by matching with the reasonable stroke of the gear and the trip rod, meanwhile, the phenomenon of unsmooth clamping in each linkage mechanism shaft is caused by deformation of materials under the influence of temperature and humidity due to the limitation of the inner space of a product in different using environments is solved by adding the trip gear in the switching-on process to drive the trip to dial back so as not to influence the normal switching-on of the circuit breaker, and the trip rod is driven to drive the latch of the circuit breaker to open at the switching-off position.
Drawings
FIG. 1 is a schematic diagram of an equivalent measurement structure of the present invention;
FIG. 2 is a schematic view of the internal structure of FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the portion of FIG. 2 according to the present invention;
FIG. 4 is a schematic view of a gear drive assembly according to the present invention;
FIG. 5 is a schematic view of the portion of FIG. 4 according to the present invention.
In the figure: 1. a fixed housing; 2. a manual closing wrench; 3. a square shaft; 4. a driven closing wrench; 5. a gear drive assembly; 6. driving the pull rod; 7. rotating the connecting block; 8. a linkage shaft; 9. a closing rotary contact piece; 10. a closing fixed contact piece; 501. a driving motor; 502. driving a worm; 503. a first-stage driven worm wheel; 504. a secondary driven gear; 505. a primary rotating gear; 506. a second-stage rotating gear; 507. a primary trip gear; 508. a secondary trip gear; 509. a handle gear; 510. rotating the cam; 511. and a trip push rod.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present invention are within the scope of protection of the present invention.
In order that the invention may be readily understood, several embodiments of the invention will be described more fully hereinafter with reference to the accompanying drawings, in which, however, the invention may be embodied in many different forms and is not limited to the embodiments described herein, but instead is provided for the purpose of providing a more thorough and complete disclosure of the invention.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "left", "right" and the like are used herein for the purpose of illustration only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in this description of the invention are for the purpose of describing particular embodiments only and are not intended to be limiting of the invention, with the term "and/or" as used herein including any and all combinations of one or more of the associated listed items.
Referring to fig. 1-5, the present invention provides a technical solution:
the small automatic reclosing circuit breaker comprises a fixed shell 1, wherein a manual closing wrench 2 is connected to the fixed shell 1, a square shaft 3 is connected to the manual closing wrench 2, a driven closing wrench 4 is connected to the side wall of the square shaft 3, a gear driving assembly 5 is connected to the inner cavity of the fixed shell 1 and positioned on the driven closing wrench 4, a driving pull rod 6 is connected to the manual closing wrench 2, a rotary connecting block 7 is connected to the other end of the driving pull rod 6, a linkage shaft 8 is connected to the rotary connecting block 7, a closing rotary contact piece 9 is connected to the other end of the linkage shaft 8, and a closing fixed contact piece 10 is arranged in the inner cavity of the fixed shell 1 and corresponds to the closing rotary contact piece 9;
in this embodiment, referring to fig. 1, 2 and 3, a manual closing spanner 2 is connected to a fixed housing 1, a square shaft 3 is connected to the manual closing spanner 2, a driven closing spanner 4 is connected to the side wall of the square shaft 3, and a closing fixed contact 10 is correspondingly provided in the inner cavity of the fixed housing 1 through a rotation shaft at both ends of the square shaft 3, wherein when the manual closing spanner 2 is pushed up by hand under the condition that the rotation shaft is connected to the side wall of the inner cavity of the fixed housing 1 in a rotation manner, the driven closing spanner 4 is simultaneously pushed up by the manual closing spanner 2, a driving pull rod 6 is connected to the manual closing spanner 2, the other end of the driving pull rod 6 is connected to a rotary connecting block 7, a linkage shaft 8 is connected to the rotary connecting block 7, the other end of the linkage shaft 8 is connected to a rotary contact 9, a closing fixed contact 10 is correspondingly provided in the inner cavity of the fixed housing 1 and is connected to the rotary connecting block 9, one end of the linkage shaft 8 penetrates through the rotary connecting block 7 and is connected to a connecting hole in the inner cavity of the fixed housing 1, wherein the linkage 8 is in a rotation connecting hole is in a rotation connection manner of the connecting hole, the linkage 8 is connected to the side wall of the connecting plate is rotatably connecting plate 9, and a metal contact 9 is simultaneously provided in the rotary connecting plate is connected to the side wall of the fixed housing 1 through a rotary connecting block 9, and a contact electrode contact 9 is simultaneously provided in a fixed contact connecting plate is connected to the rotary connecting plate 9, thereby realizing manual linkage closing;
the two ends of the square shaft 3 are connected to the side wall of the inner cavity of the fixed shell 1 through a rotating shaft, the connecting mode of the rotating shaft and the side wall of the inner cavity of the fixed shell 1 is rotary connection, an L-pole electrical contact is arranged on the side wall of the rotating joint block 7, one end of the linkage shaft 8 penetrates through the rotating joint block 7 and is connected to the connecting hole of the inner cavity side wall of the fixed shell 1, the connecting mode of the linkage shaft 8 and the connecting hole is rotary connection, the switching-on rotary contact piece 9 is connected to the connecting hole of the inner cavity side wall of the fixed shell 1 through the rotating shaft, the connecting mode of the rotating shaft and the connecting hole of the inner cavity side wall of the fixed shell 1 is rotary connection, an N-pole electrical contact is arranged at one end of the switching-on rotary contact piece 9, a metal contact piece is arranged at the position where the N-pole electrical contact contacts with the switching-on fixed contact piece 10, and one end of the switching-on fixed contact piece 10 is connected with an electrode connecting port through a wire, so that the device is smoother when in use;
in this embodiment, referring to fig. 1, 4 and 5, in the case that the gear driving assembly 5 includes a driving motor 501, the driving motor 501 is connected in an inner cavity of the fixed housing 1, a driving worm 502 is connected to a driving end of the driving motor 501 through a coupling, and the driving motor 501 is started under the condition that the driving motor 501 is connected with a signal output end of a circuit board through a wire and the connection mode is electrically connected, so that the driving end of the driving motor 501 rotates to further drive the driving worm 502 to rotate, a primary driven worm wheel 503 is connected on a side wall of the driving worm 502 in a meshed manner, a secondary driven gear 504 is connected to a bottom of the primary driven worm wheel 503, centers of the primary driven worm wheel 503 and the secondary driven gear 504 are connected in a connecting hole of the inner cavity side wall of the fixed housing 1 through a rotating shaft, wherein the rotating shaft and the connecting hole of the inner cavity side wall of the fixed housing 1 are connected in a rotating manner to thereby drive the primary driven worm wheel 503 and the secondary driven gear 504 to rotate, a first-stage rotating gear 505 is connected on the side wall of the second-stage driven gear 504 in a meshed manner, a second-stage rotating gear 506 is connected on the end face of the first-stage rotating gear 505, the centers of the first-stage rotating gear 505 and the second-stage rotating gear 506 are connected in a connecting hole of the inner cavity side wall of the fixed shell 1 through a rotating shaft, the rotating shaft and the connecting hole of the inner cavity side wall of the fixed shell 1 are driven to rotate under the condition of rotating connection, a first-stage tripping gear 507 is connected on the side wall of the second-stage rotating gear 506 in a meshed manner, a second-stage tripping gear 508 is connected on the end face of the first-stage tripping gear 507, the centers of the first-stage tripping gear 507 and the second-stage tripping gear 508 are connected in the connecting hole of the inner cavity side wall of the fixed shell 1 through rotating shafts, the connection mode of the rotating shaft and the connecting hole of the inner cavity side wall of the fixed shell 1 is that the primary trip gear 507 and the secondary trip gear 508 are driven to rotate under the condition of rotating connection, a handle gear 509 is connected to the side wall of the secondary trip gear 508 in a meshed mode, the handle gear 509 is driven to rotate under the condition that the handle gear 509 is connected to the side wall of the inner cavity of the fixed shell 1, meanwhile, the rotating cam 510 is driven to rotate under the condition that the bottom of the primary trip gear 507 is connected with a rotating cam 510, the rotating cam 510 is connected to the bottom of the primary trip gear 507, one side of the rotating cam 510 is connected with a trip push rod 511 in the inner cavity of the fixed shell 1, the trip push rod 511 is arranged on one side of the closing rotary contact piece 9, and the trip push rod 511 is connected in the connecting hole of the inner cavity side wall of the fixed shell 1 through the rotating shaft, wherein the connecting mode of the rotating shaft and the connecting hole of the inner cavity side wall of the fixed shell 1 are in a rotating connection mode, and the trip push rod 511 is driven to rotate under the condition that an arc limiting groove is correspondingly arranged on the side wall of the inner cavity of the fixed shell 1, so that one end of the closing rotary contact piece 9 is separated and sprung open, and short circuit of the circuit breaker is realized;
further: the driving motor 501 adopts a 030-type motor, and the rotating speed is controlled to 7000-12000 revolutions; the modulus of the drive worm 502 is 0.4; the number of teeth of the primary driven worm wheel 503 is 26, and the modulus is 0.4; the number of teeth of the secondary driven gear 504 is 8, and the modulus is 0.5; the primary rotation gear 505 has a tooth number of 22 and a modulus of 0.5; the number of teeth of the secondary rotating gear 506 is 8, and the modulus is 0.5; the number of teeth of the primary trip gear 507 is 24, and the modulus is 0.5; the number of teeth of the secondary trip gear 508 is 15, and the modulus is 0.6; the number of teeth of the handle gear 509 is 28 and the modulus is 0.6; thereby enabling a gear ratio 400.4 of the gear parameters
Wherein, be connected and the connected mode is electric connection through driving motor 501 and circuit board signal output part, the center department of one-level driven worm wheel 503 and second grade driven gear 504 passes through rotation axis connection in the connecting hole of fixed casing 1 inner chamber lateral wall, wherein the connected mode of rotation axis and the connecting hole of fixed casing 1 inner chamber lateral wall is rotation connection, the center department of one-level rotation gear 505 and second grade rotation gear 506 passes through rotation axis connection in the connecting hole of fixed casing 1 inner chamber lateral wall, wherein the connected mode of rotation axis and the connecting hole of fixed casing 1 inner chamber lateral wall is rotation connection, the center department of one-level trip gear 507 and second grade trip gear 508 passes through rotation axis connection in the connecting hole of fixed casing 1 inner chamber lateral wall, wherein the connected mode of rotation axis and the connecting hole of fixed casing 1 inner chamber lateral wall is rotation connection, on the lateral wall of fixed casing 1 inner chamber and correspond with the trip push rod 511 and be provided with the design of arc limiting groove, make the device more smooth when using.
The working flow of the invention is as follows: when the miniature automatic reclosing circuit breaker is used, in the process of closing, two ends of the square shaft 3 are connected to the side wall of the inner cavity of the fixed shell 1 through rotating shafts, when the manual closing spanner 2 is pushed upwards by hand under the condition that the connecting mode of the rotating shafts and the side wall of the inner cavity of the fixed shell 1 is rotating connection, the driven closing spanner 4 is pushed upwards together at the same time, a driving pull rod 6 is connected to the manual closing spanner 2, the other end of the driving pull rod 6 is connected with a rotating connecting block 7, one end of a linkage shaft 8 penetrates through the rotating connecting block 7 and is connected in a connecting hole of the side wall of the inner cavity of the fixed shell 1, the linkage shaft 8 is driven to rotate under the condition that the connecting mode of the linkage shaft 8 and the connecting hole is rotating connection, the rotating contact 9 is connected in the connecting hole of the side wall of the inner cavity of the fixed shell 1 through the rotating shaft, the rotating shaft and the rotating contact 9 are simultaneously rotated under the condition that the connecting mode of the rotating connection is rotating connection, an L-pole electric contact is arranged on the side wall of the rotating connecting block 7, one end of the rotating contact 9 is connected with the N-pole electric contact, and the N-pole electric contact is connected with the N10, and the N-pole electric contact is simultaneously connected with the L-pole electric contact, and the L-pole electric contact is connected with the electric contact, and the L-pole contact is simultaneously connected with the electric contact, and the electric contact is connected;
when the breaker breaks down and needs to be disconnected, the driving motor 501 is started under the condition that the driving motor 501 is connected with the signal output end of the circuit board through a wire and the connection mode is electrically connected, so that the driving end of the driving motor 501 rotates, and then the driving worm 502 is driven to rotate, a primary driven worm wheel 503 is connected to the side wall of the driving worm 502 in a meshed manner, a secondary driven gear 504 is connected to the bottom of the primary driven worm wheel 503, the centers of the primary driven worm wheel 503 and the secondary driven gear 504 are connected in a connecting hole of the inner cavity side wall of the fixed casing 1 through a rotating shaft, the connecting mode of the rotating shaft and the connecting hole of the inner cavity side wall of the fixed casing 1 is under the condition that the rotating shaft is in rotating connection, thereby the primary driven worm wheel 503 and the secondary driven gear 504 are driven to rotate, a primary rotating gear 505 is meshed with the side wall of the secondary driven gear 504, a secondary rotating gear 506 is connected to the end face of the primary rotating gear 505 on the side wall of the primary rotating gear 504 in a meshed manner, the center of the primary rotating gear 507 is connected to the side wall of the fixed casing 1 through the rotating shaft, the tripping gear 508 is connected to the connecting hole of the inner cavity of the secondary rotating gear 506 on the inner cavity of the fixed casing 1 through the rotating shaft, and the tripping gear 508 is in the condition that the connecting hole of the inner cavity of the fixed casing 1 is in the inner cavity of the fixed casing is connected with the inner cavity of the primary rotating gear 507, a handle gear 509 is engaged and connected to the side wall of the secondary trip gear 508, the handle gear 509 is connected to the side wall of the driven closing spanner 4 to drive the handle gear 509 to rotate, meanwhile, the rotary cam 510 is driven to rotate under the condition that the rotary cam 510 is connected to the bottom of the primary trip gear 507, the trip push rod 511 is connected to a connecting hole of the side wall of the inner cavity of the fixed shell 1 through a rotary shaft, the connecting mode of the rotary shaft and the connecting hole of the side wall of the inner cavity of the fixed shell 1 is rotary connection, and the trip push rod 511 is driven to rotate under the condition that an arc-shaped limiting groove is formed on the side wall of the inner cavity of the fixed shell 1 and corresponds to the trip push rod 511, so that one end of the closing rotary contact piece 9 is separated and sprung off, and short circuit of the circuit breaker is realized;
when automatic closing is needed, the driving motor 501 is started under the condition that the driving motor 501 is connected with the signal output end of the circuit board through a lead and the connection mode is electric connection, so that the driving end of the driving motor 501 reversely rotates, further, in the mode, the handle gear 509 is connected on the side wall of the secondary tripping gear 508 in a meshed mode, the handle gear 509 is connected on the side wall of the driven closing spanner 4, and the handle gear 509 is driven to rotate under the condition that the handle gear 509 is connected on the side wall of the driven closing spanner 4, so that closing of the closing rotating contact piece 9 is realized, and a circuit is connected.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a small-size automatic reclosing circuit breaker, includes fixed casing (1), its characterized in that: the automatic switching-on device is characterized in that a manual switching-on wrench (2) is connected to the fixed shell (1), a square shaft (3) is connected to the manual switching-on wrench (2), a driven switching-on wrench (4) is connected to the side wall of the square shaft (3), a gear driving assembly (5) is connected to the inner cavity of the fixed shell (1) and is positioned on the driven switching-on wrench (4), a driving pull rod (6) is connected to the manual switching-on wrench (2), a rotary connecting block (7) is connected to the other end of the driving pull rod (6), a linkage shaft (8) is connected to the rotary connecting block (7), a switching-on rotary contact piece (9) is connected to the other end of the linkage shaft (8), and a switching-on fixed contact piece (10) is correspondingly arranged in the inner cavity of the fixed shell (1) and is correspondingly provided with the switching-on rotary contact piece (9).
The gear drive assembly (5) comprises a drive motor (501), the drive motor (501) is connected in the inner cavity of the fixed shell (1), the drive end of the drive motor (501) is connected with a drive worm (502) through a coupling, a first-stage driven worm wheel (503) is connected on the side wall of the drive worm (502) in a meshed mode, a second-stage driven gear (504) is connected at the bottom of the first-stage driven worm wheel (503), a first-stage rotating gear (505) is connected on the side wall of the second-stage driven gear (504) in a meshed mode, a second-stage rotating gear (506) is connected on the end face of the first-stage rotating gear (505), a first-stage tripping gear (507) is connected on the side wall of the second-stage tripping gear (507), a handle gear (509) is connected on the side wall of the driven wrench (4) in a meshed mode, a rotating cam (510) is connected at the bottom of the first-stage tripping gear (507), one side of the rotating cam (510) is connected with a push rod (511), and one side of the rotating cam (511) is connected with a push rod (511) in a contact mode.
2. A miniature automatic recloser circuit breaker according to claim 1, wherein: the two ends of the square shaft (3) are connected to the side wall of the inner cavity of the fixed shell (1) through rotating shafts, wherein the rotating shafts are connected with the side wall of the inner cavity of the fixed shell (1) in a rotating manner, and L-pole electrical contacts are arranged on the side wall of the rotating connecting block (7).
3. A miniature automatic recloser circuit breaker according to claim 1, wherein: one end of the linkage shaft (8) penetrates through the rotary joint block (7) and is connected in a connecting hole of the inner cavity side wall of the fixed shell (1), wherein the linkage shaft (8) is rotationally connected with the connecting hole.
4. A miniature automatic recloser circuit breaker according to claim 1, wherein: the switching-on rotary contact piece (9) is connected in a connecting hole of the inner cavity side wall of the fixed shell (1) through a rotating shaft, wherein the connecting mode of the rotating shaft and the connecting hole of the inner cavity side wall of the fixed shell (1) is rotary connection, one end of the switching-on rotary contact piece (9) is provided with an N-pole electrical contact, and a metal contact piece is arranged at a contact position of the N-pole electrical contact and the switching-on fixed contact piece (10).
5. A miniature automatic recloser circuit breaker according to claim 1, wherein: one end of the closing fixed contact piece (10) is connected with an electrode connection port through a wire, and the driving motor (501) is connected with a signal output end of the circuit board through a wire and is electrically connected.
6. A miniature automatic recloser circuit breaker according to claim 1, wherein: the centers of the primary driven worm wheel (503) and the secondary driven gear (504) are connected in the connecting hole of the inner cavity side wall of the fixed shell (1) through a rotating shaft, wherein the connecting mode of the rotating shaft and the connecting hole of the inner cavity side wall of the fixed shell (1) is rotary connection.
7. A miniature automatic recloser circuit breaker according to claim 1, wherein: the centers of the primary rotating gear (505) and the secondary rotating gear (506) are connected in a connecting hole of the inner cavity side wall of the fixed shell (1) through a rotating shaft, wherein the connecting mode of the rotating shaft and the connecting hole of the inner cavity side wall of the fixed shell (1) is rotary connection.
8. A miniature automatic recloser circuit breaker according to claim 1, wherein: the centers of the primary tripping gear (507) and the secondary tripping gear (508) are connected in a connecting hole of the inner cavity side wall of the fixed shell (1) through a rotating shaft, wherein the connecting mode of the rotating shaft and the connecting hole of the inner cavity side wall of the fixed shell (1) is rotary connection.
9. A miniature automatic recloser circuit breaker according to claim 1, wherein: the tripping push rod (511) is connected in a connecting hole of the inner cavity side wall of the fixed shell (1) through a rotating shaft, wherein the connecting mode of the rotating shaft and the connecting hole of the inner cavity side wall of the fixed shell (1) is rotary connection, and an arc-shaped limiting groove is formed in the side wall of the inner cavity of the fixed shell (1) and corresponds to the tripping push rod (511).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311779016.2A CN117558592A (en) | 2023-12-21 | 2023-12-21 | Small-sized automatic reclosing circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311779016.2A CN117558592A (en) | 2023-12-21 | 2023-12-21 | Small-sized automatic reclosing circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117558592A true CN117558592A (en) | 2024-02-13 |
Family
ID=89811104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311779016.2A Pending CN117558592A (en) | 2023-12-21 | 2023-12-21 | Small-sized automatic reclosing circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117558592A (en) |
-
2023
- 2023-12-21 CN CN202311779016.2A patent/CN117558592A/en active Pending
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