CN2371665Y - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
- Publication number
- CN2371665Y CN2371665Y CN 99228133 CN99228133U CN2371665Y CN 2371665 Y CN2371665 Y CN 2371665Y CN 99228133 CN99228133 CN 99228133 CN 99228133 U CN99228133 U CN 99228133U CN 2371665 Y CN2371665 Y CN 2371665Y
- Authority
- CN
- China
- Prior art keywords
- support
- circuit breaker
- pedestal
- handle
- torsion spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 27
- 239000000203 mixture Substances 0.000 claims description 2
- 230000009191 jumping Effects 0.000 abstract 3
- 230000000694 effects Effects 0.000 description 12
- 230000005405 multipole Effects 0.000 description 6
- 238000010891 electric arc Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Breakers (AREA)
Abstract
The utility model relates to a breaker, comprising a lid, a base, an actuating mechanism, a contact device, an electromagnetic device and a thermal cutoff device, etc. The actuating mechanism is composed of a handle, a torsion spring, a connecting bar, a support, a jumping pin, an instant off support and an armature, wherein, the handle is offset on the base via the torsion spring; the jumping pin is connected with an axle pin via the support. One end of the support is fixed on the axial center of the handle, and the other is fixed on the instant off support. One end of the connecting bar is inserted into a hole of the handle, and the other is inserted into a hole of the jumping pin. One end of the torsion spring is fixed on the base, and the other is fastened on the support. The armature is arranged on one end of the instant off support fixed on the base. The utility model which has compact conformation is easy to realize multipolar combinations among breakers.
Description
The utility model relates to a kind of circuit breaker, is the improvement to existing circuit breaker.
Existing circuit breaker.Exist some defectives in actual use: at first, in the operating mechanism of circuit breaker, all adopt pivot pin axially to install between each parts, and two ends of pivot pin are separately fixed on lid, the pedestal, therefore, pivot pin must be aimed at the axis hole that is located on lid and the pedestal simultaneously when mounted, and this has brought certain degree of difficulty to installation; Secondly, realize the multipole combination difficulty relatively between each circuit breaker, and the structure of jockey is quite complicated during combination, it is very inconvenient to assemble.
The purpose of this utility model is that a kind of compact conformation, easy for installation and can more easily realize the circuit breaker of the multipole combination between each circuit breaker will be provided.
The purpose of this utility model is achieved like this, a kind of circuit breaker, by lid, pedestal 1, be installed in the junction block 12 on the pedestal 1,26, joint cover 11,34, operating mechanism, contact apparatus, calutron, the bimetallic thermal cutoff devices, arc-control device and indicating device are formed, described operating mechanism is by handle 3, torsion spring 2, connecting rod 4, support 31, tripping 28, torsion spring 29, support 8, take off support 18 wink, armature 21 compositions such as grade, handle 3 is biased on the pedestal 1 by torsion spring 2, can rotate, connect by pivot pin 9 between tripping 28 and the support 8, support 31 is positioned on the tripping 28, the one end is fixed on the axle center of handle 3, the other end is fixed on and takes off in wink on the support 18, one end of connecting rod 4 inserts in the hole of handle 3, be inserted in the hole of tripping 28 behind the hole of the other end by support 31, one end of torsion spring 29 is fixed on the pedestal 1, and the other end is stuck on the support 8, and armature 21 cooperates by the chimeric mouth 35 that takes off support 18 in groove on it 38 and wink, and guarantee that armature 21 can rotate, take off support 18 wink and be fixed on the pedestal 1.
Below in conjunction with accompanying drawing the utility model is further described below.
Fig. 1 is the plane structure chart between the utility model each parts when the back circuit breaker that lifts cover is in open position.
Fig. 2 is the plane structure chart between the utility model each parts when the back circuit breaker that lifts cover is in the close position.
Fig. 3 is the shaft side figure of the part parts of operating mechanism of the present utility model.
The support 31 of the utility model operating mechanism is provided with a rotating shaft 27, and rotating shaft 27 is embedded in by the hole on the support 31 in the through hole of pedestal 1, offers a keyway 33 respectively on upper and lower two end faces of rotating shaft 27.Keyway 33 is opened on upper and lower two end faces of rotating shaft 27, with the lid of keyway 33 opposite positions and pedestal 1 on offer through hole respectively, guaranteed that like this keyway 33 communicates with the external world, when certain circuit breaker need and other circuit breaker of the same race between when being combined into multistage circuit breakers such as bipolar, three utmost points, four utmost points, connection between per two circuit breakers only need be inserted in each self-corresponding keyway 33 by a key and be got final product, and is simple in structure, easy to connect.
Contact apparatus of the present utility model is made up of the pair of separable contact 7,10 that is installed in the pedestal 1, contact 7 is fixed contacts, is welded on the junction of striking sheet 13 and joint cover 11, and contact 10 is moving contacts, be welded on the support 8, can move with support 8.Contact 7,10 all adopts resistance fusion welding, and good material is made, and clearance between open contacts is big.The utility model is because contact 10 is welded on the support 8, and support 8 is connect by pivot pin 9 with tripping 28, thus support 8 move and around the rotation of pivot pin 9 can drive contact 10 with the engagement of contact 7 with separate.
Calutron of the present utility model is made up of solenoid 19, unshakable in one's determination 20, iron core 20 is fixed on and takes off in wink on the support 18, solenoid 19 is installed on unshakable in one's determination 20, the one end is fixed on and takes off in wink on the support 18, the other end can directly be connected with the joint cover 34 of junction block 26, also can be connected with contact 10 on the support 8 by flexible connection.
Bimetallic thermal cutoff devices of the present utility model is adjusted screw 24 by a bimetal leaf 22 and and is formed, one end of bimetal leaf 22 is fixed on the end that takes off support 18 wink, in the card base 39 on the other end insertion armature 21, the other end of bimetal leaf 22 can be connected with contact 10 on the support 8 by flexible connection 30, also can be connected with the joint cover 34 of junction block 26 by flexible connection.Adjusting screw 24 is installed in the screw 37 that takes off support 18 1 ends wink.The effect of adjusting screw 24 is the relative position that is used for regulating between bimetal leaf 22 and the card base 39, and the two distance is short more, and drop-away current is just more little; Otherwise then drop-away current is just big.The utility model also offers screw 36 taking off in wink on the end of support 18, and adjustment screw 23 is installed in the screw 36, is fixed with an end of a torsion spring 25 on the adjustment screw 23, and the other end of torsion spring 25 contacts with armature 21.The utility model can rotate in order to guarantee armature 21, and iron core 20 is magnetized the attraction that produced must be greater than the deflecting force of torsion spring 25, otherwise armature 21 can not rotate, and circuit breaker is failure to actuate.The effect of adjustment screw 23 is the deflecting forces that are used for regulating torsion spring 25.
Arc-control device of the present utility model is made up of arc-chute 15, arc separating wall 16, and arc separating wall 16 is installed on the arc-chute 15, and arc-chute 15 is installed in the pedestal 1.Arc-chute 15 adopts cold-rolled steel sheet to make, and arc separating wall 16 adopts the hard steel cardboard to make.When producing electric arc between moving contact 10 and the fixed contact 7, electric arc is guided to arc-control device by striking sheet 17,13,14, extinguishes in arc-chute 15.Striking sheet 17 of the present utility model is installed in and takes off in wink on the support 18, and striking sheet 13 is installed on the fixed contact 7, and striking sheet 14 is installed on the pedestal 1.
Indicating device of the present utility model is made up of spring 6 and support 5, post label on the support 5, red green two kinds of colors are arranged on the label, show by the color in the indicator hole on the pedestal 1 32 and to indicate circuit breaker to be in closure state or off-state, wherein red expression circuit breaker is in closure state, and green expression circuit breaker is in off-state.
The utility model current direction when circuit breaker is in closure state can have two kinds.A kind of is joint cover 34 connections of and junction block 26 direct when an end of solenoid 19, simultaneously an end of bimetal leaf 22 is connected (as shown in Figure 2) by flexible connection 30 with contact 10 on the support 8, this connected mode, make current direction from junction block 12 behind joint cover 11, striking sheet 13 to contact 7, arrive bimetal leaf 22 through contact 10, flexible connection 30 again, arrive another junction blocks 26 by joint cover 34 behind the solenoid 19 through taking off support 18 inflow calutrons wink again.Another kind is to be connected with contact 10 on the support 8 by flexible connection when an end of solenoid 19, an end of bimetal leaf 22 is connected with the joint cover 34 of junction block 26 by flexible connection simultaneously, this connected mode, make current direction from junction block 12 behind joint cover 11, striking sheet 13 to contact 7, again through contact 10, flexible connection solenoid 19 to calutron, through taking off support 18 wink, behind flexible connection, arrive another junction block 26 more then by joint cover 34 to bimetal leaf 22.
When concrete operations, circuit breaker can be by the make position of manually adjusting to as shown in Figure 2.This adjustment can be transferred to as shown in Figure 2 make position from open position shown in Figure 1 by turning handle 3.During action, operating personnel clockwise rotate handle 3, because the motion of handle 3, drivening rod 4 actions, be inserted in the tripping 28 owing to connecting rod 4 again, tripping 28 is and then motion also, but the free end of tripping 28 is blocked by armature 21 in motion process, can not be by original direction motion, be counter clockwise direction so become original clockwise direction, support 8 also and then counterclockwise rotates under the effect of torsion spring 29, the contact 10 that drives on it upwards contacts with contact 7, at this moment breaker closing.Simultaneously, because the motion of connecting rod 4 promotes support 5 compression springs 6, support 5 moves right, and arrives low order end, and redness is presented in the indicator hole 32 of pedestal 1, and the expression circuit breaker is in closure state.
When the utility model flows through the circuit breaker that is in the close position when a low level comparatively speaking overload current, bimetal leaf 22 heatings are crooked, promoting armature 21 rotates counterclockwise, discharge tripping 28, rotating shaft 27 motion clockwise together is being with in tripping 28, and support 8 also clockwise rotates under the effect of torsion spring 29 and tripping 28, the final contact 10 that drives separates with contact 7 downwards, and at this moment circuit breaker disconnects.In this process, the quadric chain of forming between handle 3, connecting rod 4, pedestal 1 and the tripping 28 is under the effect of torsion spring 2, and handle 3 rotates counterclockwise, and returns to the initial position when disconnecting, and is waiting for action next time.If the connection of this circuit breaker by key is combined into multipole form with other circuit breaker of the same race, then identical motion is done in the rotating shaft of rotating shaft 27 other utmost point circuit breakers of meeting drive of this circuit breaker, the rotating band moving armature of rotating shaft rotates counterclockwise, discharge tripping, spring and tripping make supporting band moving contact and move clockwise, moving contact is separated with fixed contact, finish the disconnection of other utmost point circuit breaker.The utility model is because after adopting said structure, as long as a utmost point circuit breaker tripping disconnects, other utmost point circuit breaker is also followed interlock and disconnected together.Meanwhile, handle 3 rotates counterclockwise under the effect of torsion spring 2, and connecting rod 4 upper ends are moved to the left, and support 5 is got back to high order end under the effect of spring 6, and green label is presented in the indicator hole 32 of pedestal 1, and the expression circuit breaker is in open position.
The utility model when a very large comparatively speaking overload current flow through as shown in Figure 2 be in the circuit breaker of closure state the time, the iron core 20 of calutron is magnetized by the magnetic field that overload current produces, attract armature 21 to make it to rotate counterclockwise, discharge tripping 28, rotating shaft 27 motion clockwise together is being with in tripping 28, and support 8 also clockwise rotates under the effect of torsion spring 29 and tripping 28, the final contact 10 that drives separates with contact 7 downwards, and at this moment circuit breaker disconnects.In this process, the quadric chain of forming between handle 3, connecting rod 4, pedestal 1 and the tripping 28 is under the effect of torsion spring 2, and handle 3 rotates counterclockwise, and returns to the initial position when disconnecting, and is waiting for action next time.If the connection of this circuit breaker by key is combined into multipole form with other circuit breaker, then identical motion is done in the rotating shaft of rotating shaft 27 other utmost point circuit breakers of meeting drive of this circuit breaker, the rotating band moving armature of rotating shaft rotates counterclockwise, discharge tripping, spring and tripping make supporting band moving contact and move clockwise, moving contact is separated with fixed contact, finish the disconnection of other utmost point circuit breaker.Meanwhile, handle 3 rotates counterclockwise under the effect of torsion spring 2, and connecting rod 4 upper ends are moved to the left, and support 5 is got back to high order end under the effect of spring 6, and green label is presented in the indicator hole 32 of pedestal 1, and the expression circuit breaker is in open position.In this process iron core 20 be magnetized the attraction that produced must be greater than the deflecting force of torsion spring 25, otherwise armature 21 can not rotate, circuit breaker is failure to actuate.The deflecting force of torsion spring 25 can be controlled by adjustment screw 23.
The utility model is after this circuit breaker and other several circuit breakers of the same race are combined into multipole circuit breaker, then break down and when tripping is thrown off when other a certain utmost point or a few utmost point circuit breaker, the motion of the rotating shaft of other a certain utmost point or a few utmost point circuit breakers also can drive the rotating shaft of this circuit breaker and do above-mentioned identical motion, promptly clockwise rotate and promote the armature release tripping of moving counterclockwise, supporting band moving contact and is clockwise rotated under the effect of torsion spring, force moving contact to separate at last, this circuit breaker is disconnected with fixed contact.
The utility model can produce electric arc between contact 10 and the contact 7 when low level relatively overload current or very large overload current flow through circuit breaker, this electric arc is guided to arc-control device by striking sheet 17,13,14, and electric arc is extinguished in arc-chute 15.
The utility model is when wishing to reset or recover circuit breaker from as shown in Figure 1 make position, as long as handle 3 is manually rotated to high order end in the direction of the clock; Also manually rotary handle 3 teams make position as shown in Figure 2 to as shown in Figure 1 open position.
The utility model is because after adopting said structure, has the connection that only needs between simple in structure, each circuit breaker by key and can realize that multipole combination, operating mechanism connect advantages such as compact, that the intrinsic time of threading off is short, the contact material melt resistance is good and clearance between open contacts is big.
Claims (2)
1, a kind of circuit breaker, by lid, pedestal (1), be installed in the junction block (12) on the pedestal (1), (26), joint cover (11), (34), operating mechanism, contact apparatus, calutron, the bimetallic thermal cutoff devices, arc-control device and indicating device are formed, it is characterized in that described operating mechanism is by handle (3), torsion spring (2), connecting rod (4), support (31), tripping (28), torsion spring (29), support (8), take off support (18) wink, armature compositions such as (21), handle (3) is biased on the pedestal (1) by torsion spring (2), can rotate, connect by pivot pin (9) between tripping (28) and the support (8), support (31) is positioned on the tripping (28), the one end is fixed on the axle center of handle (3), the other end is fixed on and takes off in wink on the support (18), one end of connecting rod (4) inserts in the hole of handle (3), be inserted in the hole of tripping (28) behind the hole of the other end by support (31), one end of torsion spring (29) is fixed on the pedestal (1), the other end is stuck on the support (8), armature (21) cooperates with chimeric mouthful (35) taking off support (18) wink by the groove on it (38), and guarantee that armature (21) can rotate, and takes off support (18) wink and is fixed on the pedestal (1).
2, circuit breaker according to claim 1, the support (31) that it is characterized in that operating mechanism is provided with a rotating shaft (27), rotating shaft (27) is embedded in the through hole of pedestal (1) by the hole on the support (31), offers a keyway (33) respectively on upper and lower two end faces of rotating shaft (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99228133 CN2371665Y (en) | 1999-04-09 | 1999-04-09 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99228133 CN2371665Y (en) | 1999-04-09 | 1999-04-09 | Circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2371665Y true CN2371665Y (en) | 2000-03-29 |
Family
ID=34017563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99228133 Expired - Lifetime CN2371665Y (en) | 1999-04-09 | 1999-04-09 | Circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2371665Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101441958B (en) * | 2008-12-01 | 2011-03-02 | 何成祥 | Minitype breaker capable of indicating operating status employing lamplight |
| CN107610987A (en) * | 2017-09-22 | 2018-01-19 | 嘉兴市加控电气设备制造有限公司 | A kind of miniature circuit breaker |
-
1999
- 1999-04-09 CN CN 99228133 patent/CN2371665Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101441958B (en) * | 2008-12-01 | 2011-03-02 | 何成祥 | Minitype breaker capable of indicating operating status employing lamplight |
| CN107610987A (en) * | 2017-09-22 | 2018-01-19 | 嘉兴市加控电气设备制造有限公司 | A kind of miniature circuit breaker |
| CN107610987B (en) * | 2017-09-22 | 2020-04-24 | 嘉兴市加控电气设备制造有限公司 | Small-sized circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |