CN207542173U - Double breaking points small type circuit breaker operating mechanism - Google Patents
Double breaking points small type circuit breaker operating mechanism Download PDFInfo
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- CN207542173U CN207542173U CN201721776639.4U CN201721776639U CN207542173U CN 207542173 U CN207542173 U CN 207542173U CN 201721776639 U CN201721776639 U CN 201721776639U CN 207542173 U CN207542173 U CN 207542173U
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- tripping
- handle
- breaking points
- circuit breaker
- axis pin
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Abstract
The utility model is related to a kind of double breaking points small type circuit breaker operating mechanisms, the operating mechanism includes mechanism rack, handle, first torsional spring, lower retainer, second torsional spring, upper retainer, latch components, double breaking points moving contact component, latch components include two rocking arms, the first axis pin and the second axis pin and third axis pin being separately positioned between two rocking arms, tripping, it detains again, clamp spring, lock, third torsional spring, tension spring is provided between second axis pin and the side plate of mechanism rack, L-shaped limiting section is provided on one end of the upper retainer, the tail portion of the lower retainer is provided with and the matched spoon type body of limiting section, and the arc transition being connect with spoon type body transition is provided on lower retainer, the limiting section is fastened on lower retainer and forms limiting cooperation with spoon type body.The utility model has the advantages that high breaking, stable and reliable for performance, service life is long.
Description
Technical field
The utility model is related to a kind of miniature circuit breakers, and in particular to a kind of double breaking points small type circuit breaker operating mechanism.
Background technology
At present, the rapid development of power industry industry, miniature circuit breaker are widely applied to daily family as protective device
With in equipment and various public place electric wirings, it not only can with disjunction with connect normal load current, but also work as circuit
There is overload, short circuit when failures, automatically cut off circuit, the protection person and property safety.What existing miniature circuit breaker used
Disjunction structure is single-break formula, i.e., is matched by single moving contact with corresponding static contact and realize disjunction or closure, still
For single-break formula since electric current is larger in breaking course, current limiting performance is poor, and disjunction is not prompt enough between leading to contact, causes to touch
Head scaling loss is than more serious, so as to influence the service life of product.And the miniature circuit breaker also there are divide-shut brake speed slowly, disjunction
The defects of energy force difference.
Invention content
The purpose of the utility model is to overcome the defects of the prior art, provide a kind of high breaking, it is stable and reliable for performance, make
With the double breaking points small type circuit breaker operating mechanism of long lifespan.
To achieve the above object, the utility model use a kind of double breaking points small type circuit breaker operating mechanism, including mechanism rack,
It is the handle that is rotatably arranged in the first axle of mechanism rack, the first torsional spring being connected between handle and the side plate of mechanism rack, corresponding
The lower retainer that is rotatably arranged at the lower end of handle on the second axis of mechanism rack is connected to lower retainer and the side plate of mechanism rack
Between the second torsional spring, be rotatably arranged on the third axis of mechanism rack and upper retainer matched with lower retainer and handle
The latch components of setting that link and the double breaking points moving contact component of latch components linkage setting, the latch components include two
A rocking arm being rotatably arranged on third axis, the first axis pin being separately positioned between two rocking arms and the second axis pin and third pin
Axis, the tripping for being rotatably arranged on the first axis pin and being set with handle linkage are rotatably arranged on the second axis pin and join with tripping
The detaining again of dynamic cooperation clamps and detains clamp spring between the side plate of mechanism rack again, is rotatably arranged on third axis pin and with detaining phase again
The lock of cooperation, the third torsional spring being connected between rocking arm and lock, set between second axis pin and the side plate of mechanism rack
Tension spring is equipped with, L-shaped limiting section is provided on one end of the upper retainer, the tail portion of the lower retainer is provided with
With the matched spoon type body of limiting section, and the arc transition being connect with spoon type body transition is provided on lower retainer, it is described
Limiting section is fastened on lower retainer and forms limiting cooperation with spoon type body.
The advantageous effect of above structure is：There is the miniature circuit breaker high breaking, stable and reliable for performance, service life to grow
Advantage, lower retainer tail portion are designed to spoon-shaped structure, and upper retainer is provided with the L-type limiting section with spoon type mates, is closing
During lock, upper retainer is slided along lower retainer spoon type, until reaching complete fastening, moving contact stop motion, handle continues
It pushes, after dead point is crossed by mechanism to be operated, moving contact acts rapidly, and the movable contact of moving contact and the stationary contact point contact of static contact reach
The purpose closed a floodgate to moment, the design of the structure are effectively prevented before moving contact contacts with static contact, and because of high voltage, there are bands
The contact electrical wear come, has extended breaker service life.
Particularly, the double breaking points moving contact component include moving contact, be connected to moving contact and two rocking arms it
Between two touch springs, one end setting of the moving contact is provided on each connecting portion and is sleeved on the there are two connecting portion
Waist-shaped hole on three axis, the other end setting of the moving contact is there are two C-shaped contact site, and each contact site is towards static contact
Side on be both provided with groove, point is welded with movable contact in the groove.Setting is touched there are two dynamic on the contact site of moving contact
Point is provided with waist-shaped hole on the connecting portion of moving contact, and moving contact can be adjusted in two touch springs, ensure two movable contacts with
The stationary contact of static contact is reliably bonded, the influence that Wen Sheng brings mechanism and handle between reduction dynamic/static contact.And moving contact
Contact site is designed to c-type, can promote electric arc fast transfer in disjunction, reduces the electrical wear in breaking course, and enhancing is resolved
The electric life of road device, groove location can spot welding silver movable contact, greatly improve the breaking capacity of breaker.
Particularly, described buckle again is provided with limiting slot at corresponding tripping, is provided in the tripping and limiting slot
Matched driving portion, the driving portion can be slided with tripping action in limiting slot, and form tripping and the linkage detained again
Cooperation.The matched driving portion of limiting slot for being provided in tripping and detaining again, is linked so as to fulfill tripping with what is detained again, closes
During lock, driving portion is interlocked with limiting slot；During separating brake, driving portion is separated with limiting slot, and clamp spring driving is detained again returns to initial bit
It puts.
Particularly, described buckle again is provided with the Z-shaped holding section of basic configuration at corresponding lock, on the lock
Be provided with the matched buckling parts in holding section, during combined floodgate, the holding section is interlocked with buckling parts, and form lock with again
The limiting cooperation of button.During breaker closing, lock is interlocked with detaining again, and lock has locking function；When short circuit occurs for circuit,
The mandril of the buckle releaser of circuit breaker electric magnetic system pushes lock, lock with deduct points again from, so as to fulfill the quick acting switching-off of switch, when
When circuit overloads, bimetal leaf temperature distortion, bimetal leaf stirs lock by pull rod, lock with deduct points again from, so as to
Realize the quick acting switching-off of breaker.
Particularly, the upper end of the tripping is provided with combined floodgate index plane, and the red mark that closes a floodgate is provided on combined floodgate index plane
Will.When closing a floodgate, user can see the red combined floodgate Warning Mark in tripping out of Shell of circuit breaker indicator hole, so as to fulfill
The combined floodgate instruction of breaker.
Particularly, connection there are two connecting rod, and forms being linked for handle and tripping between the handle and tripping,
One end of two connecting rods is connected in the connecting hole of handle, and the other end of two connecting rods is connected to the through-hole of tripping
It is interior.Two connecting rods be connected to handle, tripping both sides on, handle and tripping transmission it is more reliable, also allow for handle, tripping,
Assembling between connecting rod.
Particularly, clamping portion is provided on the lower retainer at corresponding second torsional spring, the second torsion spring set is mounted in second
On axis, one end of the second torsional spring is contradicted in clamping portion, and the other end of the second torsional spring contradicts the clamping block on side plate.Second torsional spring
It is installed between lower retainer and side plate, convenient for the installation of the second torsional spring, also ensures that lower retainer being capable of reliable reset.
Description of the drawings
Fig. 1 is the utility model embodiment internal structure stereogram.
Fig. 2 is the utility model embodiment sectional view.
Fig. 3 removes the stereogram after a side plate for the utility model embodiment.
Fig. 4 is the stereogram of retainer under the utility model embodiment.
Fig. 5 is the stereogram of retainer in the utility model embodiment.
Fig. 6 is the stereogram of the utility model embodiment tripping.
Fig. 7 is the stereogram that the utility model embodiment is detained again.
Fig. 8 is the stereogram of the utility model embodiment lock.
Fig. 9 is the stereogram of the utility model embodiment moving contact.
Specific embodiment
As shown in Fig. 1~9, the utility model embodiment is a kind of double breaking points small type circuit breaker operating mechanism, including mechanism
Frame 10, is connected to handle 11 and the side plate 101 of mechanism rack 10 at the handle 11 being rotatably arranged in the first axle 102 of mechanism rack 10
Between the first torsional spring 12, corresponding handle 11 lower end at be rotatably arranged on lower retainer on the second axis 103 of mechanism rack 10
13rd, it is connected to the second torsional spring 14 between lower retainer 13 and the side plate 101 of mechanism rack 10, is rotatably arranged on the of mechanism rack 10
On three axis 104 and upper retainer 15 matched with lower retainer 13, with handle 11 linkage setting latch components 20, with lock
The double breaking points moving contact component 30 of the linkage setting of component 20, the latch components 20 are rotatably arranged on third axis including two
Rocking arm 21 on 104, the first axis pin 22 being separately positioned between two rocking arms 21 and the second axis pin 23 and third axis pin 24 turn
The dynamic tripping 25 being arranged on the first axis pin 22 and with the linkage setting of handle 11 is rotatably arranged on the second axis pin 23 and and tripping
25 be linked detain 26 again, clamp and detain clamp spring 27 between 26 and the side plate 101 of mechanism rack 10 again, be rotatably arranged on third pin
On axis 24 and with detaining 26 matched locks 28, the third torsional springs 29 being connected between rocking arm 21 and lock 28 again, described the
Tension spring 231 is provided between two axis pins 23 and the side plate 101 of mechanism rack 10, is provided on one end of the upper retainer 15 and is in
The limiting section 151 of L-type, the tail portion of the lower retainer 13 be provided with 151 matched spoon type body 131 of limiting section, and under
The arc transition 132 being connect with 131 transition of spoon type body is provided on retainer 13, the limiting section 151 is fastened on down only
Limiting cooperation is formed on moving part 13 and with spoon type body 131.Connecting rod 111 there are two connections between the handle 11 and tripping 25,
And being linked for handle 11 and tripping 25 is formed, one end of described two connecting rods 111 is connected in the connecting hole of handle 11,
And the other end of two connecting rods 111 is connected in the through-hole 251 of tripping 25.Two connecting rods be connected to handle, tripping two
On side, handle and tripping transmission are more reliable, also allow for the assembling between handle, tripping, connecting rod.As shown in Figure 1, described first
Laser welding is respectively adopted between two side plates of mechanism rack in axis, the second axis, third axis, and first axle, the second axis, third axis rise
To the effect for fixing two side plates.
As shown in Fig. 1,2,3,9, the double breaking points moving contact component 30 includes moving contact 31, is connected to moving contact
Two touch springs 32 between 31 and two rocking arms 21, one end setting of the moving contact 31 is there are two connecting portion 311, respectively
The waist-shaped hole 312 being sleeved on third axis 104 is provided on connecting portion 311, the other end of the moving contact 31 is provided with two
A C-shaped contact site 313, each contact site 313 is towards being both provided with groove 314, the groove 314 on the side of static contact
Interior point is welded with movable contact 315.Setting is provided with waist type there are two movable contact on the connecting portion of moving contact on the contact site of moving contact
Hole can ensure moving contact in the range of certain angle, buffered and adjusted by the dynamic balance of two touch springs, when closing a floodgate,
Ensure that two movable contacts can be reliably bonded with static contact component, the shadow that Wen Sheng brings mechanism and handle between reduction dynamic/static contact
It rings.And the contact site of moving contact is designed to c-type, can promote electric arc fast transfer in disjunction, reduces the electricity in breaking course
Abrasion, enhances the electric life of breaker, groove location can spot welding silver movable contact, the breaking capacity of breaker is made to carry significantly
It is high.
As shown in Fig. 1,2,3,6,7, described detaining again corresponds on 26 and limiting slot 261 is provided at tripping 25, the jump
Being provided on button 25 can limit with 261 matched driving portion 251 of limiting slot, the driving portion 251 with the action of tripping 25
It slides in slot 261, and forms tripping 25 and be linked with detaining 26 again.It is provided in tripping matched with the limiting slot detained again
Driving portion is linked so as to fulfill tripping with what is detained again, and during combined floodgate, driving portion is interlocked with limiting slot；During separating brake, driving portion
It is separated with limiting slot, clamp spring driving is detained again returns to initial position.As shown in Fig. 2,7,8, described detains corresponding lock on 26 again
The Z-shaped holding section 262 of basic configuration is provided at 28, is provided on the lock 28 and 262 matched button of holding section
Conjunction portion 281, during combined floodgate, the holding section 262 is interlocked with buckling parts 281, and forms lock 28 and match with detaining 26 limiting again
It closes.During breaker closing, lock is interlocked with detaining again, and lock has locking function；When short circuit occurs for circuit, breaker electromagnetism
The mandril of the buckle releaser of system pushes lock, and lock is with deducting points again from so as to fulfill the quick acting switching-off of switch, when circuit occurred
During load, bimetal leaf temperature distortion, bimetal leaf stirs lock by pull rod, and lock is with deducting points again from so as to fulfill breaker
Quick acting switching-off.The upper end of the tripping 26 is provided with combined floodgate index plane 263, and red conjunction is provided on combined floodgate index plane 263
Lock mark.When closing a floodgate, user can see the red combined floodgate Warning Mark in tripping out of Shell of circuit breaker indicator hole, so as to
Realize the combined floodgate instruction of breaker.
As shown in Figure 2,4, clamping portion 133 is provided on the lower retainer 13 at corresponding second torsional spring 14, second turns round
Spring 14 is sleeved on the second axis 103, and one end of the second torsional spring 14 is contradicted in clamping portion 133, and the other end of the second torsional spring 14 contradicts
Clamping block on side plate 101.Second torsional spring is installed between lower retainer and side plate, convenient for the installation of the second torsional spring, is also protected
The lower retainer of card being capable of reliable reset.
The miniature circuit breaker has the advantages that high breaking, stable and reliable for performance, service life is long, lower retainer tail portion design
Into spoon-shaped structure, upper retainer is provided with the L-type limiting section with spoon type mates, in making process, upper retainer along
Lower retainer spoon type is slided, until reaching complete fastening, moving contact stop motion, handle continues to press on, and dead point is crossed by mechanism to be operated
Afterwards, moving contact acts rapidly, the movable contact of moving contact and the stationary contact point contact of static contact, achievees the purpose that moment closes a floodgate, the knot
The design of structure is effectively prevented before moving contact contacts with static contact, because of the contact electrical wear that the presence of high voltage is brought, is extended
Breaker service life.
Claims (7)
1. a kind of double breaking points small type circuit breaker operating mechanism, it is characterised in that：The operating mechanism includes mechanism rack, is rotatably arranged on
Handle in the first axle of mechanism rack, the first torsional spring being connected between handle and the side plate of mechanism rack, corresponding handle lower end
Lower retainer that place is rotatably arranged on the second axis of mechanism rack, second be connected between lower retainer and the side plate of mechanism rack
Torsional spring, be rotatably arranged on the third axis of mechanism rack and upper retainer matched with lower retainer, with handle linkage setting
Latch components, the double breaking points moving contact component with latch components linkage setting, the latch components include two rotations and set
Rocking arm on third axis, the first axis pin being separately positioned between two rocking arms and the second axis pin and third axis pin, rotation are set
The tripping on the first axis pin and with handle linkage setting is put, is rotatably arranged on the second axis pin and is linked again with tripping
Button, clamp detain clamp spring between the side plate of mechanism rack again, be rotatably arranged on third axis pin and with detain again matched lock,
The third torsional spring being connected between rocking arm and lock, is provided with tension spring, institute between second axis pin and the side plate of mechanism rack
L-shaped limiting section is provided on the one end of upper retainer stated, the tail portion of the lower retainer is provided with and limiting section phase
The spoon type body of cooperation, and the arc transition being connect with spoon type body transition is provided on lower retainer, the limiting section fastens
Limiting cooperation is formed on lower retainer and with spoon type body.
2. double breaking points small type circuit breaker operating mechanism according to claim 1, it is characterised in that：The double break crawl touches
Head assembly includes moving contact, two touch springs being connected between moving contact and two rocking arms, the moving contact
One end setting is provided with the waist-shaped hole being sleeved on third axis there are two connecting portion on each connecting portion, the moving contact it is another
One end setting is there are two C-shaped contact site, and each contact site is towards being both provided with groove, the groove on the side of static contact
Interior point is welded with movable contact.
3. double breaking points small type circuit breaker operating mechanism according to claim 1, it is characterised in that：Described buckles correspondence again
Limiting slot is provided at tripping, be provided in the tripping with the matched driving portion of limiting slot, the driving portion is with jump
Pulling work can slide in limiting slot, and forms tripping and be linked with what is detained again.
4. the double breaking points small type circuit breaker operating mechanism according to claim 1 or 3, it is characterised in that：Described buckles again
The Z-shaped holding section of basic configuration is provided at corresponding lock, is provided on the lock and the matched fastening in holding section
Portion, during combined floodgate, the holding section is interlocked with buckling parts, and forms lock and coordinate with the limiting detained again.
5. the double breaking points small type circuit breaker operating mechanism according to claim 1 or 3, it is characterised in that：The tripping
Upper end is provided with combined floodgate index plane, and the red mark that closes a floodgate is provided on combined floodgate index plane.
6. double breaking points small type circuit breaker operating mechanism according to claim 1, it is characterised in that：The handle and tripping
Between connection there are two connecting rod, and form being linked for handle and tripping, one end of described two connecting rods is connected to handle
Connecting hole in, and the other end of two connecting rods is connected in the through-hole of tripping.
7. double breaking points small type circuit breaker operating mechanism according to claim 1, it is characterised in that：On the lower retainer
Clamping portion is provided at corresponding second torsional spring, on the second axis, one end of the second torsional spring is contradicted in clamping portion the second torsion spring set,
The other end of second torsional spring contradicts the clamping block on side plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721776639.4U CN207542173U (en) | 2017-12-19 | 2017-12-19 | Double breaking points small type circuit breaker operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721776639.4U CN207542173U (en) | 2017-12-19 | 2017-12-19 | Double breaking points small type circuit breaker operating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207542173U true CN207542173U (en) | 2018-06-26 |
Family
ID=62618770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721776639.4U Expired - Fee Related CN207542173U (en) | 2017-12-19 | 2017-12-19 | Double breaking points small type circuit breaker operating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207542173U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946148A (en) * | 2017-12-19 | 2018-04-20 | 上海永继电气股份有限公司 | Double breaking points small type circuit breaker operating mechanism |
| CN108962700A (en) * | 2018-08-08 | 2018-12-07 | 河北宝凯电气股份有限公司 | A kind of shielding arc-control device between contact of breaker |
| WO2022206919A1 (en) * | 2021-04-01 | 2022-10-06 | 上海正泰智能科技有限公司 | Operating mechanism of circuit breaker, and circuit breaker |
-
2017
- 2017-12-19 CN CN201721776639.4U patent/CN207542173U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946148A (en) * | 2017-12-19 | 2018-04-20 | 上海永继电气股份有限公司 | Double breaking points small type circuit breaker operating mechanism |
| CN108962700A (en) * | 2018-08-08 | 2018-12-07 | 河北宝凯电气股份有限公司 | A kind of shielding arc-control device between contact of breaker |
| WO2022206919A1 (en) * | 2021-04-01 | 2022-10-06 | 上海正泰智能科技有限公司 | Operating mechanism of circuit breaker, and circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180626 Termination date: 20211219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |