CN200997378Y - Inleakage releasing mechanism of circuit breaker - Google Patents
Inleakage releasing mechanism of circuit breaker Download PDFInfo
- Publication number
- CN200997378Y CN200997378Y CN 200620045783 CN200620045783U CN200997378Y CN 200997378 Y CN200997378 Y CN 200997378Y CN 200620045783 CN200620045783 CN 200620045783 CN 200620045783 U CN200620045783 U CN 200620045783U CN 200997378 Y CN200997378 Y CN 200997378Y
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- CN
- China
- Prior art keywords
- moving contact
- arm
- circuit breaker
- support
- side arm
- 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 - Fee Related
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Abstract
The utility model relates to an earth leakage trip mechanism of the breaker, which comprises a coil (9), an iron core (8), a main operational mechanism and a dynamic contact module, wherein the dynamic contact module is connected with the main operational mechanism. The utility model is characterized in that the device comprises a rotary arm (7), a fixed axis(6) and a trip axis(5); the rotary arm (7) is provided with a upside arm(71) and a underside arm (72) that extend to up and down; the mid part of the rotary arm (7) is rotationally arranged on the fixed axis(6), wherein the upside arm (71) is connected with the iron core(8) and the underside arm (72) is leaned on the trip axis(5); the trip axis(5) is connected with the trip component of the main operational mechanism.
Description
Technical field
The utility model relates to a kind of circuit breaker, particularly relates to the electrical leakage tripping device of circuit breaker.
Background technology
The electrical leakage tripping device of circuit breaker is used to realize earth leakage protective, and existing electrical leakage tripping device generally is directly to be connected with a dropout part of main circuit breaker by unshakable in one's determination, by the direct push-and-pull dropout of iron core part, the operating mechanism of main circuit breaker is threaded off.But there is certain defective in this tripping mechanism, breaks down when dangerous situation occurring (50V) at supply voltage, because voltage is very low, the iron core of electrical leakage tripping device drives main circuit breaker and is difficult to thread off.
The N utmost point that traditional bipolar residual current circuit breaker has can not cut-off, and its N utmost point that can cut-off and the main circuit breaker width that coexists is in the 18mm housing, separates with leakage tripping device, and so bipolar residual current circuit breaker shell frame current class is little, and breaking capacity is low.
Though the now up-to-date bipolar residual current circuit breaker N utmost point separates with main circuit breaker and is in the same place with leakage tripping device, breaking capacity is improved, but the N utmost point contact mechanism of this bipolar residual current circuit breaker takes up room too big, make that the space of electric sub-member plate and zero sequence current mutual inductor is too little, the sectional area of wire that passes zero sequence current mutual inductor is little, shell frame current class can not improve, and the cost of electric sub-member plate and zero sequence current mutual inductor is also higher.
The utility model content
The technical problems to be solved in the utility model provides a kind of reliable in action, the electrical leakage tripping device that breaking capacity is high.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of electrical leakage tripping device of circuit breaker, comprise coil, unshakable in one's determination, main operation mechanism and moving contact component, moving contact component is connected with main operation mechanism, also comprise a turning arm, fixed axis and trip shaft, described turning arm is provided with a last side arm and following side arm of both direction stretching, extension up and down, the middle part of turning arm is installed in rotation on the fixed axis, side arm is connected with iron core on it, side arm is resisted against on the trip shaft under it, and greater than the distance of the tie point that descends side arm and trip shaft to the fixed axis center, described trip shaft is connected with the dropout part of main operation mechanism to the distance at fixed axis center for last side arm and unshakable in one's determination tie point.
The utility model is owing to increased a turning arm between unshakable in one's determination and main operation mechanism, turning arm has last side arm to be connected with iron core, following side arm is connected with main operation mechanism, because the arm of force of last side arm greater than the arm of force of following side arm, therefore forms laborsaving leverage, when low-voltage, even pulling force unshakable in one's determination is less, also can drive main operation mechanism and thread off, improved the breaking capacity of circuit breaker, reliable in action, fail safe is good.
In technique scheme, moving contact component comprises support, moving contact and connecting axle that is parallel to each other and installation shaft, described support is rotatably connected on the installation shaft, and the upper end of support is connected with main operation mechanism by described connecting axle, and described moving contact is connected the lower end of support.This structure makes opening apart from increasing of moving contact, and breaking capacity improves; The volume of moving contact component is little, and the space of zero sequence current mutual inductor is increased, and the sectional area of wire that passes zero sequence current mutual inductor increases, and then has increased shell frame grading current.
A kind of preferred structure of above-mentioned moving contact component is, the both sides of described moving contact are provided with projection, the inboard of described support is provided with the stops that matches with the moving contact projection, the upper end of described moving contact is provided with block, also be provided with torsion spring in the described support, the upper end of torsion spring is resisted against below the block of moving contact, and the lower end abutment of torsion spring is on the stops of support.Its advantage is simple in structure, and part is few, and is easy for installation.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structural representation of the electrical leakage tripping device of the utility model circuit breaker.
Fig. 2 is the shape schematic diagram of turning arm.
Fig. 3 is the decomposing schematic representation of moving contact component.
Embodiment
As shown in Figure 1 and Figure 2, be provided with zero sequence current mutual inductor 10 and electronic circuit board 11 in the base 12, the lead at left and right the two poles of the earth passes from zero sequence current mutual inductor 10, the signal of telecommunication of zero sequence current mutual inductor 10 inductions is sent into electronic circuit board 11 and is carried out processing and amplifying, and electronic circuit board 11 is connected with coil 9.
Iron core 8 in the coil 9 is connected with turning arm 7, turning arm 7 is provided with a last side arm 71 and following side arm 72 of both direction stretching, extension up and down, the middle part of turning arm 7 is installed in rotation on the fixed axis 6, fixed axis 6 is fixed in the base 12, last side arm 71 is connected with unshakable in one's determination 8, following side arm 72 is resisted against on the trip shaft 5, trip shaft 5 is connected with the dropout part of circuit breaker main operation mechanism and can moves in an arc chute, last side arm 71 is longer to the distance at fixed axis 6 centers with unshakable in one's determination 8 tie point, and side arm 72 will be lacked to the distance at fixed axis 6 centers with the tie point of trip shaft 5 down.Under the electric leakage state; after by zero sequence current mutual inductor 10 detected signal being delivered to electronic circuit board 11 processing and amplifying; coil 9 makes 8 actions unshakable in one's determination; 8 driven rotary arms 7 unshakable in one's determination rotate; following side arm 72 promotes trip shaft 5 motions, thereby main operation mechanism is threaded off, and the moving contact component that is connected with main operation mechanism disconnects with fixed contact under the effect of back-moving spring; thereby the cut-out circuit plays a protective role.Because the arm of force of last side arm 71 is greater than the arm of force of side arm 72 down, so the tripping force that needs is less, break down at supply voltage that (low pressure 50V) also can reliably thread off when dangerous situation occurring, guarantee circuit safety.
In the present embodiment, moving contact component comprises support 2, moving contact 1 and connecting axle 4 that is parallel to each other and installation shaft 3, support 2 is rotatably connected on the installation shaft 3, and installation shaft 3 also is fixed in the base 12, and the upper end of support 2 is connected with main operation mechanism by connecting axle 4.As shown in Figure 3, the both sides of moving contact 1 are provided with projection 102, correspondingly, the inboard of support 2 is provided with the stops 21 that matches with moving contact projection 102, and the upper end of moving contact 1 is provided with block 101, also be provided with torsion spring 13 in the support 2, the upper end of torsion spring 13 is resisted against below the block 101 of moving contact, and the lower end abutment of torsion spring 13 so just links together moving contact 1 and support 2 on the stops 21 of support reliably, simple in structure, easy for installation.This moving contact structure makes opening apart from increasing of moving contact, and breaking capacity improves; The volume of moving contact component is little, and the space of zero sequence current mutual inductor 10 is increased, and the sectional area of wire that passes zero sequence current mutual inductor 10 increases, and then has increased the shell frame grading current of circuit breaker.
Claims (3)
1. the electrical leakage tripping device of a circuit breaker, comprise coil (9), (8) unshakable in one's determination, main operation mechanism and moving contact component, moving contact component is connected with main operation mechanism, it is characterized in that: also comprise a turning arm (7), fixed axis (6) and trip shaft (5), described turning arm (7) is provided with one that both direction up and down stretches and goes up a side arm (71) and a following side arm (72), the middle part of turning arm (7) is installed in rotation on the fixed axis (6), side arm on it (71) is connected with (8) unshakable in one's determination, side arm (72) is resisted against on the trip shaft (5) under it, and described trip shaft (5) is connected with the dropout part of main operation mechanism.
2. the electrical leakage tripping device of circuit breaker according to claim 1, it is characterized in that: described moving contact component comprises support (2), moving contact (1) and the connecting axle (4) that is parallel to each other, installation shaft (3), described support (2) is rotatably connected on the installation shaft (3), the upper end of support (2) is connected with main operation mechanism by described connecting axle (4), and described moving contact (1) is connected the lower end of support (2).
3. the electrical leakage tripping device of circuit breaker according to claim 2, it is characterized in that: the both sides of described moving contact (1) are provided with projection (102), the inboard of described support (2) is provided with the stops (21) that matches with moving contact projection (102), the upper end of described moving contact (1) is provided with block (101), also be provided with torsion spring (13) in the described support (2), the upper end of torsion spring (13) is resisted against below the block (101) of moving contact, and the lower end abutment of torsion spring (13) is on the stops (21) of support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620045783 CN200997378Y (en) | 2006-09-13 | 2006-09-13 | Inleakage releasing mechanism of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620045783 CN200997378Y (en) | 2006-09-13 | 2006-09-13 | Inleakage releasing mechanism of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200997378Y true CN200997378Y (en) | 2007-12-26 |
Family
ID=38995814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620045783 Expired - Fee Related CN200997378Y (en) | 2006-09-13 | 2006-09-13 | Inleakage releasing mechanism of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200997378Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231349A (en) * | 2011-06-10 | 2011-11-02 | 上海电机学院 | Breaker with over current trip transmission device |
| CN102760622A (en) * | 2012-07-23 | 2012-10-31 | 李文杰 | Un-lengthened 18mm-width multifunctional residual current circuit breaker |
| CN103441047A (en) * | 2013-09-16 | 2013-12-11 | 安德利集团有限公司 | Tripping trigger device for small residual-current circuit breaker |
| CN111404049A (en) * | 2020-04-27 | 2020-07-10 | 乐清市一锦电子有限公司 | Distribution box system and wiring method thereof |
| WO2022135037A1 (en) * | 2020-12-25 | 2022-06-30 | 浙江奥来电器有限公司 | Electrical leakage tripping mechanism of circuit breaker |
-
2006
- 2006-09-13 CN CN 200620045783 patent/CN200997378Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231349A (en) * | 2011-06-10 | 2011-11-02 | 上海电机学院 | Breaker with over current trip transmission device |
| CN102760622A (en) * | 2012-07-23 | 2012-10-31 | 李文杰 | Un-lengthened 18mm-width multifunctional residual current circuit breaker |
| CN102760622B (en) * | 2012-07-23 | 2016-03-16 | 乐清市智顺电气有限公司 | It is 18mm multifunctional electric leakage circuit breaker that nothing lengthens width |
| CN103441047A (en) * | 2013-09-16 | 2013-12-11 | 安德利集团有限公司 | Tripping trigger device for small residual-current circuit breaker |
| CN103441047B (en) * | 2013-09-16 | 2015-05-20 | 安德利集团有限公司 | Tripping trigger device for small residual-current circuit breaker |
| CN111404049A (en) * | 2020-04-27 | 2020-07-10 | 乐清市一锦电子有限公司 | Distribution box system and wiring method thereof |
| CN111404049B (en) * | 2020-04-27 | 2023-10-20 | 乐清市一锦电子有限公司 | Distribution box system and wiring method thereof |
| WO2022135037A1 (en) * | 2020-12-25 | 2022-06-30 | 浙江奥来电器有限公司 | Electrical leakage tripping mechanism of circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DELIXI ELECTRIC LTD. Free format text: FORMER OWNER: DELIXI ELECTRIC APPLIANCES CO., LTD., ZHEJIANG PROV. Effective date: 20080118 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080118 Address after: Liushi Delixi high tech Industrial Park, Wenzhou City, Zhejiang province zip code: 325604 Patentee after: Delixi Electric Co., Ltd. Address before: Yueqing City, Zhejiang province Liushi Delixi Industrial Park, zip code: 325604 Patentee before: Delixi Electrical Appliance Co., Ltd., Zhejiang |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071226 Termination date: 20120913 |