CN208027936U - A kind of miniature circuit breaker - Google Patents
A kind of miniature circuit breaker Download PDFInfo
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- CN208027936U CN208027936U CN201820482347.8U CN201820482347U CN208027936U CN 208027936 U CN208027936 U CN 208027936U CN 201820482347 U CN201820482347 U CN 201820482347U CN 208027936 U CN208027936 U CN 208027936U
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Abstract
A kind of miniature circuit breaker, including breaker body, permanent-magnet operating mechanism, transmission mechanism, vacuum circuit breaker mechanism and self-locking mechanism are equipped in the breaker body, permanent-magnet operating mechanism is connect by transmission mechanism with vacuum circuit breaker mechanism, transmission mechanism includes driving connecting lever, main shaft, three-phase connecting lever, connecting plate, transmission crank arm and separating brake tension spring, drive one end of connecting lever hinged by shaft and the dynamic iron core of permanent-magnet operating mechanism, the other end is mounted on main shaft, main shaft is fixedly connected with one end of three-phase connecting lever, and the other end of three-phase connecting lever and one end of connecting plate are hinged；Self-locking mechanism includes Self locking gears, drive plate, handle gear, sector gear, self-lock rod, self-locking pedestal, self-locking spring, drawstring and Duan Sheng mechanisms；The self-locking mechanism independent control separating brake of the miniature circuit breaker, and when cabinet door is not by door-lock opening the limitation for breaker closing can be realized using the self-locking of handle, it avoids artificially closing a floodgate privately, it is safe.
Description
Technical field
The utility model is related to breaker technical field, especially a kind of miniature circuit breaker.
Background technology
Breaker is the electric current for referring to close, carry and cut-off under normal loop condition and can close, when defined
Interior carrying and the switching device for cut-offfing the electric current under abnormal loop condition.Breaker is divided into high-voltage circuitbreaker by its use scope
With low-voltage circuit breaker, high-low pressure identification of boundaries is relatively fuzzyyer, and 3kV or more is generally known as High-Voltage Electrical Appliances.Breaker can be used to
Electric energy is distributed, asynchronous motor is infrequently started, the implementations such as power circuit and motor are protected, when their generations are serious
When overload or short circuit and the failures such as under-voltage can automatic shutdown circuit, function is equivalent to Fuse switch and crosses underheat relay
The combination of device etc..And parts need not be generally changed after disjunction fault current.Currently, having had been widely used.
Electricity generation, conveying, in use, distribution is an extremely important link.Town and country power station is widely applied to miniature circuit breaker, but
It is that existing miniature circuit breaker is provided with closing by hand device, in small towns, more remote place often will appear breaker
The case where combined floodgate is powered privately after open circuit, dangerous higher, the damage for power grid is larger.
Invention content
The utility model is intended to provide a kind of miniature circuit breaker that can avoid closing a floodgate privately manually.
To achieve the above object, the utility model provides the following technical solutions：A kind of miniature circuit breaker, including breaker master
Body, the breaker body is interior to be equipped with permanent-magnet operating mechanism, transmission mechanism, vacuum circuit breaker mechanism and self-locking mechanism, permanent magnet operating
Mechanism is connect by transmission mechanism with vacuum circuit breaker mechanism, transmission mechanism include driving connecting lever, main shaft, three-phase connecting lever, connecting plate,
Transmission crank arm and separating brake tension spring drive one end of connecting lever hinged by shaft and the dynamic iron core of permanent-magnet operating mechanism, other end peace
On main shaft, main shaft is fixedly connected with one end of three-phase connecting lever, and the other end of three-phase connecting lever and one end of connecting plate are hinged, connection
The other end of plate and one end of transmission crank arm are hinged, and the other end of transmission crank arm is hinged with the insulated tension pole of vacuum circuit breaker mechanism,
The intermediate position of transmission crank arm is mounted on by shaft in breaker body, and transmission crank arm is drawn close to the position of connecting plate and separating brake
Spring connects；Self-locking mechanism includes Self locking gears, drive plate, handle gear, sector gear, self-lock rod, self-locking pedestal, self-locking bullet
Spring, drawstring and Duan Sheng mechanisms, Self locking gears are mounted on the main shaft of transmission mechanism, and the inner face of Self locking gears is equipped with drive plate, passes
Moving plate is fixedly connected with Self locking gears, and the center of drive plate is equipped with round hole, and the inner circumferential of the round hole is equipped with several ratchets
Tooth, the main shaft for being driven disk center are equipped with the lock pin coordinated with hook tooth, which is inserted into the pin hole of main shaft, and the pin
Locking spring is equipped in hole, one end of locking spring connects lock pin, and the other end connects main shaft；Self locking gears are nibbled with handle gear
It closes, handle gear is mounted on by arm pivot post in breaker body, and sector gear is set to the left side of handle gear and fixed peace
Mounted in the right end of self-lock rod, the left end of self-lock rod installs self-locking pedestal, and self-lock rod runs through self-locking sliding sleeve, which is fixed on
In breaker body；Self-locking spring, one end of self-locking spring are equipped between the left side of self-locking pedestal and the shell of breaker body
Self-locking pedestal is connected, the other end connects the shell of breaker body；One end of drawstring connects self-locking pedestal, other end connecting cabinet door
On cabinet lock, the inner end connection lock tongue of the lock core of cabinet lock and from lock collar should set that there are one hook, the hooks from the periphery of lock collar
Top to far from breaker body side bend, and link up on be cased with link, link connection stay cord；Duan Sheng mechanisms include
Column, plectrum, card, blade, tool apron, accumulation of energy seat, energy-storaging spring and plectrum spring are hit, it is left mounted on the lower part of self-locking pedestal to hit column
Side, the left side for hitting column are equipped with plectrum, and plectrum is vertically arranged, and the middle part of the right end of top connecting card, plectrum is installed by shaft
On the shell of breaker body, the lower section of card is equipped with tool apron, and tool apron is mounted in the vertical chute of accumulation of energy seat, below tool apron
Vertical chute in be equipped with energy-storaging spring, one end connection tool apron bottom end of energy-storaging spring, the other end connects accumulation of energy seat, the top of tool apron
Portion is equipped with blade, and blade is located at the lower section of drawstring；Plectrum spring, plectrum are equipped between the lower part and the right side of accumulation of energy seat of plectrum
The both ends of spring are separately connected plectrum and accumulation of energy seat.
Further scheme as the utility model：The breaker body is set in electrical cabinet, and electrical cabinet is equipped with cabinet
Door, cabinet door are locked equipped with cabinet.
Further scheme as the utility model：The sector gear is equipped with the teeth of handle gear engagement.
Further scheme as the utility model：The main shaft is mounted on by bearing in breaker body.
Further scheme as the utility model：The Self locking gears are connect by mechanisms such as bearings with main axis.
Further scheme as the utility model：Handle outside the arm pivot post connection breaker body.
Compared with prior art, the utility model has the beneficial effects that：The self-locking mechanism independent control of the miniature circuit breaker
Separating brake, and when cabinet door is not by door-lock opening the limitation for breaker closing can be realized using the self-locking of handle,
It avoids artificially closing a floodgate privately, it is safe.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the breaker body of the utility model；
Fig. 3 is the structural schematic diagram of the drive plate of the utility model；
Fig. 4 is the structural schematic diagram of the Duan Sheng mechanisms of the utility model.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Please refer to Fig.1-4, in the utility model embodiment, a kind of miniature circuit breaker, including breaker body 1, it is described disconnected
Permanent-magnet operating mechanism 2, transmission mechanism 3, vacuum circuit breaker mechanism 4 and self-locking mechanism, permanent-magnet operating mechanism 2 are equipped in road device main body 1
It is connect with vacuum circuit breaker mechanism 4 by transmission mechanism 3, transmission mechanism 3 includes driving connecting lever 5, main shaft 6, three-phase connecting lever, connection
Plate, transmission crank arm 7 and separating brake tension spring 8 drive one end of connecting lever 5 hinged by shaft and the dynamic iron core of permanent-magnet operating mechanism 2, separately
One end is mounted on main shaft 6, and main shaft 6 is fixedly connected with one end of three-phase connecting lever, the other end of three-phase connecting lever and one end of connecting plate
Hinged, the other end of connecting plate is hinged with one end of transmission crank arm 7, and the other end of transmission crank arm 7 is exhausted with vacuum circuit breaker mechanism 4
Edge pull rod is hinged, and the intermediate position of transmission crank arm 7 is mounted on by shaft in breaker body 1, and transmission crank arm 7 is close to connecting plate
Position connect with separating brake tension spring 8.
Self-locking mechanism includes Self locking gears 9, drive plate 10, handle gear 11, sector gear 12, self-lock rod 13, bottom self-locked
Seat 14, self-locking spring 15, drawstring 16 and Duan Sheng mechanisms, Self locking gears 9 are mounted on the main shaft 6 of transmission mechanism 3, Self locking gears 9
Inner face be equipped with drive plate 10, drive plate 10 is fixedly connected with Self locking gears 9, and the center of drive plate 10 is equipped with round hole,
The inner circumferential of the round hole is equipped with several hook tooths, and the main shaft 6 at 10 center of drive plate is equipped with the lock pin 17 coordinated with hook tooth,
The lock pin 17 is inserted into the pin hole of main shaft 6, and locking spring is equipped in the pin hole, and one end of locking spring connects lock pin
17, the other end connects main shaft 6；Self locking gears 9 are engaged with handle gear 11, and handle gear 11 is mounted on open circuit by arm pivot post
In device main body 1, sector gear 12 is set to the left side of handle gear 11 and is fixedly mounted on the right end of self-lock rod 13, self-lock rod 13
Left end installs self-locking pedestal 14, and self-lock rod 13 runs through self-locking sliding sleeve, which is fixed in breaker body 1；Bottom self-locked
Self-locking spring 15 is equipped between the left side and the shell of breaker body 1 of seat 14, one end of self-locking spring 15 connects self-locking pedestal
14, the other end connects the shell of breaker body 1；One end connection self-locking pedestal 14 of drawstring 16, on other end connecting cabinet door 32
Cabinet lock, the inner end connection lock tongue of the lock core of cabinet lock and from lock collar 18 should set that there are one hook, the extensions from the periphery of lock collar 18
The top of hook is bent to the side far from breaker body 1, and is linked up with and be cased with link, link connection stay cord 16；Disconnected rope machine
Structure includes hitting column 21, plectrum 22, card 23, blade 24, tool apron 25, accumulation of energy seat 26, energy-storaging spring 27 and plectrum spring 28, hits column
21 are mounted on the lower left side of self-locking pedestal 14, and the left side for hitting column 21 is equipped with plectrum 22, and plectrum 22 is vertically arranged, top connection card
The middle part of the right end of piece 23, plectrum 22 is mounted on by shaft on the shell of breaker body 1, and the lower section of card 23 is equipped with tool apron
25, tool apron 25 is mounted in the vertical chute of accumulation of energy seat 26, and energy-storaging spring 27, accumulation of energy are equipped in the vertical chute of 25 lower section of tool apron
One end 25 bottom end of connection tool apron of spring 27, the other end connect accumulation of energy seat 26, and the top of tool apron 25 is equipped with blade 24,24, blade
In the lower section of drawstring 16；Plectrum spring 28 is equipped between the lower part and the right side of accumulation of energy seat 26 of plectrum 22, plectrum spring 28
Both ends are separately connected plectrum 22 and accumulation of energy seat 26.
Further, breaker body 1 is set in electrical cabinet 31, and electrical cabinet 31 is equipped with cabinet door 32, and cabinet door 32 is equipped with cabinet
Lock.
Further, sector gear 12 is equipped with the teeth that handle gear 11 engages.
Further, main shaft 6 is mounted on by bearing in breaker body 1.
Further, Self locking gears 9 are rotatablely connected by the mechanisms such as bearing and main shaft 6.
Further, the handle outside arm pivot post connection breaker body 1.
The design feature and its operation principle of the utility model：The iron core action of permanent-magnet operating mechanism 2 is by driving connecting lever 5
Main shaft 6 is driven to rotate, the rotation of main shaft 6 drives transmission crank arm 7 to rotate around the axis and drives the lifting of insulated tension pole by connecting plate,
To realize the division of the dynamic/static contact inside vacuum circuit breaker mechanism 4.
The Self locking gears 9 of the self-locking mechanism of the utility model by the connection of drive plate 10 and 6 disengaging type of main shaft, only when
Hook tooth and 17 locking of lock pin（Locking spring 10 ejects the part that lock pin 9 resists the protrusion of hook tooth 8, hook tooth 8 when reversed
Guiding lock pin 9, inwardly movement is detached from the releasing locking of hook tooth 8）When can passing power；Handle band is started when manual brake separating
Handle gear 11, which rotates counterclockwise, drives Self locking gears 9 to rotate clockwise, at this time the hook tooth of drive plate 10 and 17 locking of lock pin,
And then main shaft 6 is driven to rotate clockwise, and then drive the action drop-down insulated tension pole of transmission crank arm 7 to complete separating brake by connecting plate,
When handle drives arm pivot post to rotate clockwise, although Self locking gears 9 can rotate counterclockwise, due to hook tooth at this time
Be unable to locking with lock pin 17, thus can not passing power, main shaft 6 can not be influenced.
Pass through one end of link connection stay cord 16 from the hook of lock collar 18 when cabinet door 32 is closed for self-lock rod 13,
Then the other end application pulling force of drawstring 16 overcomes 15 elastic force of self-locking spring to make sector gear 12 far from handle gear 11, works as cabinet door
Since the rotation of cabinet lock drives the rotation from lock collar 18 when 32 opening, to drive hook rotation, link after rotating by a certain angle
Since the effect of 16 pulling force of drawstring is detached from hook, then drawstring 16 loses the pulling force for self-locking pedestal 14, to self-locking spring
15 drive self-lock rods 13, which slide to the right, makes handle gear 11 be engaged with sector gear 12, to locking handle gear 11, handle teeth
Taking turns can drive Self locking gears 9 to rotate counterclockwise after 11 lockings if main shaft 6 is wanted to rotate counterclockwise combined floodgate, but due to from
The handle gear 11 of the engagement of gear 9 is locked by locking, therefore will limiting circuit breaker combined floodgate；It is only needed cabinet when shutting cabinet door 32
Lock reversely rotates certain angle, lock tongue and does not extend out lockhole at this time, but hook has been able to tangle the degree of link, again link
It hangs on hook, shuts cabinet door 32, lock cabinet lock and recovery can be completed, again may be by pulling manually when opening cabinet door 32 and hang
Ring makes sector gear 12 be detached from handle gear 11.
When cabinet door 32 be not by cabinet lock open but destroy open when can due to link without departing from drive drawstring 16, to
It drives self-locking pedestal 14 that 15 elastic force of self-locking spring is overcome to continue to move to left, hits 22 lower end of plectrum until hitting column 21, overcome plectrum bullet
28 elastic force of spring drives lower end to move to left, and drives card 23 to be detached from tool apron 25 since leverage drives 22 upper end of plectrum to turn right,
27 elastic force of energy-storaging spring ejection tool apron 25 in accumulation of energy seat 26 cuts off drawstring 16 with cutting blade 24, then the same meeting of self-locking spring 15
Driving self-locking pedestal 14 to move to right makes handle gear 11 be engaged with sector gear 12, to locking handle；Plectrum bullet under normal condition
The power of 22 lower end of plectrum one to the left is given in the holding of 28 elastic force of spring, since card 23 is pressed on 25 top of tool apron by leverage.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing in the equivalent requirements of the claims will be fallen
All changes in justice and range are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (6)
1. a kind of miniature circuit breaker, including breaker body, which is characterized in that be equipped with permanent magnet operating machine in the breaker body
Structure, transmission mechanism, vacuum circuit breaker mechanism and self-locking mechanism, permanent-magnet operating mechanism are connected by transmission mechanism and vacuum circuit breaker mechanism
It connects, transmission mechanism includes driving connecting lever, main shaft, three-phase connecting lever, connecting plate, transmission crank arm and separating brake tension spring, drives the one of connecting lever
End is hinged by shaft and the dynamic iron core of permanent-magnet operating mechanism, and the other end is mounted on main shaft, and main shaft is fixedly connected with three-phase connecting lever
One end, the other end of three-phase connecting lever and one end of connecting plate are hinged, and the other end of connecting plate and one end of transmission crank arm are hinged,
The other end of transmission crank arm is hinged with the insulated tension pole of vacuum circuit breaker mechanism, and the intermediate position of transmission crank arm is mounted on by shaft
In breaker body, transmission crank arm is connect close to the position of connecting plate with separating brake tension spring；Self-locking mechanism includes Self locking gears, transmission
Disk, handle gear, sector gear, self-lock rod, self-locking pedestal, self-locking spring, drawstring and Duan Sheng mechanisms, Self locking gears, which are mounted on, to be passed
On the main shaft of motivation structure, the inner face of Self locking gears is equipped with drive plate, and drive plate is fixedly connected with Self locking gears, and drive plate
Center is equipped with round hole, and the inner circumferential of the round hole is equipped with several hook tooths, and the main shaft for being driven disk center is equipped with and matches with hook tooth
The lock pin of conjunction, the lock pin are inserted into the pin hole of main shaft, and locking spring is equipped in the pin hole, and one end of locking spring connects
Lock pin, the other end connect main shaft；Self locking gears are engaged with handle gear, and handle gear is mounted on breaker by arm pivot post
In main body, sector gear is set to the left side of handle gear and is fixedly mounted on the right end of self-lock rod, and the left end installation of self-lock rod is certainly
Pedestal is locked, self-lock rod runs through self-locking sliding sleeve, which is fixed in breaker body；The left side of self-locking pedestal and breaker
Self-locking spring is equipped between the shell of main body, one end of self-locking spring connects self-locking pedestal, and the other end connects breaker body
Shell；One end of drawstring connects self-locking pedestal, and the cabinet lock on other end connecting cabinet door, the inner end of the lock core of cabinet lock connects lock tongue
With from lock collar, should be set from the periphery of lock collar there are one linking up with, the top of the hook is bent to the side far from breaker body, and
And it is cased with link, link connection stay cord on hook；Duan Sheng mechanisms include hitting column, plectrum, card, blade, tool apron, accumulation of energy seat, storing
Energy spring and plectrum spring hit the lower left side that column is mounted on self-locking pedestal, and the left side for hitting column is equipped with plectrum, and plectrum is set vertically
It sets, the right end of top connecting card, the middle part of plectrum is mounted on by shaft on the shell of breaker body, is set below card
There are tool apron, tool apron to be mounted in the vertical chute of accumulation of energy seat, energy-storaging spring, energy-storaging spring are equipped in the vertical chute below tool apron
One end connection tool apron bottom end, the other end connects accumulation of energy seat, and the top of tool apron is equipped with blade, and blade is located at the lower section of drawstring；It dials
Plectrum spring is equipped between the lower part and the right side of accumulation of energy seat of piece, the both ends of plectrum spring are separately connected plectrum and accumulation of energy seat.
2. a kind of miniature circuit breaker according to claim 1, which is characterized in that the breaker body is set to electrical cabinet
Interior, electrical cabinet is equipped with cabinet door, and cabinet door is locked equipped with cabinet.
3. a kind of miniature circuit breaker according to claim 1, which is characterized in that the sector gear is equipped with handle gear
The teeth of engagement.
4. a kind of miniature circuit breaker according to claim 1, which is characterized in that the main shaft is mounted on open circuit by bearing
In device main body.
5. a kind of miniature circuit breaker according to claim 1, which is characterized in that the Self locking gears pass through the mechanisms such as bearing
It is connect with main axis.
6. a kind of miniature circuit breaker according to claim 1, which is characterized in that the arm pivot post connects breaker body
External handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820482347.8U CN208027936U (en) | 2018-04-08 | 2018-04-08 | A kind of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820482347.8U CN208027936U (en) | 2018-04-08 | 2018-04-08 | A kind of miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208027936U true CN208027936U (en) | 2018-10-30 |
Family
ID=63910241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820482347.8U Active CN208027936U (en) | 2018-04-08 | 2018-04-08 | A kind of miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208027936U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108400038A (en) * | 2018-04-08 | 2018-08-14 | 舍恩高电气有限责任公司 | A kind of miniature circuit breaker |
| CN110880434A (en) * | 2019-12-06 | 2020-03-13 | 蚌埠普源电气科技有限公司 | Electric operating mechanism and switch equipment thereof |
-
2018
- 2018-04-08 CN CN201820482347.8U patent/CN208027936U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108400038A (en) * | 2018-04-08 | 2018-08-14 | 舍恩高电气有限责任公司 | A kind of miniature circuit breaker |
| CN108400038B (en) * | 2018-04-08 | 2023-08-25 | 舍恩高电气有限责任公司 | Small-sized circuit breaker |
| CN110880434A (en) * | 2019-12-06 | 2020-03-13 | 蚌埠普源电气科技有限公司 | Electric operating mechanism and switch equipment thereof |
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