CN2749047Y - Bipolar earth leakage circuit breaker - Google Patents
Bipolar earth leakage circuit breaker Download PDFInfo
- Publication number
- CN2749047Y CN2749047Y CN 200420081085 CN200420081085U CN2749047Y CN 2749047 Y CN2749047 Y CN 2749047Y CN 200420081085 CN200420081085 CN 200420081085 CN 200420081085 U CN200420081085 U CN 200420081085U CN 2749047 Y CN2749047 Y CN 2749047Y
- Authority
- CN
- China
- Prior art keywords
- contact
- protection system
- casing
- supporting member
- circuit breaker
- 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
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Abstract
The utility model discloses a bipolar earth leakage circuit breaker, comprising an over load protection system, a short-circuit protection system, an earth leakage protection system, a lock catch, a handle, a connecting rod, a jumper, a supporting element, a movable contact, a static contact and a casing. The casing is divided into a left casing and a right casing. The handle, the U-shaped connecting rod, the lock catch, the jumper and the supporting element are respectively connected with an operating mechanism and drive an L wire movable contact, an L wire static contact, an N wire movable contact and an N wire static contact to close the brake. The lock catch can be touched respectively by the over load protection system, the short-circuit protection system and the earth leakage protection system to trip. The supporting element in the left casing is a J-shaped supporting element. The lower end of the J-shaped supporting element is mathced with the N wire movable contact in a sliding mode. The N wire movable contact is movably hinged with the casing by a long pin hole. The utility model realizes that the parameters of the product contact such as the opening distance, the excess of stroke, the contact terminate pressure, etc, can be adjusted at can, the contact resistance of the contact can be effectively reduced, and the grade current of the casing rack of the products can be increased.
Description
Technical field
The utility model relates to a kind of the two poles of the earth residual current circuit breaker, belongs to the low-voltage electrical apparatus field.
Background technology
Present the two poles of the earth residual current circuit breaker mostly is assembled by miniature circuit breaker and leakage tripping device, and miniature circuit breaker and leakage tripping device have independent operation train of mechanism and defencive function separately, and interlock is carried out by other part that is associated in the centre.Thereby cause the volume of residual current circuit breaker big, electric current shell frame grading current is little, complex structure, assemble loaded down with trivial details, defective such as reliability is lower, and the contact parameter is unadjustable.
Summary of the invention
Technical problem to be solved in the utility model is to provide that a kind of simple and compact for structure, contact parameter scalable, shell frame grading current are big, the residual current circuit breaker of reliable in action, to overcome the above-mentioned defective of prior art.
For solving this technical problem, the utility model adopts following technical scheme: a kind of the two poles of the earth residual current circuit breaker comprises overload protective device, short circuit protection system, leakage protection system, snap close, handle, connecting rod, tripping, supporting member, L line moving contact, L line fixed contact, N line moving contact, N line fixed contact, housing; N line moving contact moves hinged by have strong market potential hole and housing, supporting member is hinged by pin-and-hole and housing, and the lower end of supporting member and N line moving contact are slidingly matched.Supporting member is " J " type supporting member.A rectangular recess can be opened in " J " type supporting member lower end, N line moving contact is embedded wherein can not swing, the reliability when closing a floodgate to improve.The contact-making surface preferred design camber face of N line moving contact and groove to reduce contact friction force, increases useful life, improves product reliability.
The binding site of the utility model " J " type supporting member, N line moving contact, N line fixed contact, moving contact spring and part shape can adopt different movement locus by regulating, thus the random adjustment that can realize opening product contact parameters such as distance, the excess of stroke, contact terminate pressure; Because said structure of the present utility model designs, can reduce the contact resistance of contact effectively simultaneously, thereby improve the shell frame grading current of product.
Description of drawings
Further illustrate particular content of the present utility model below in conjunction with drawings and Examples.
Fig. 1 is a right side housing inner structure schematic diagram;
Fig. 2 is a left side housing inner structure schematic diagram;
Fig. 3 is " J " shape supporting member schematic diagram;
Fig. 4 is a N line moving contact schematic diagram.
Embodiment
Present embodiment comprises overload protective device, short circuit protection system, leakage protection system, snap close, handle, connecting rod, tripping, supporting member, L line moving contact, L line fixed contact, N line moving contact, N line fixed contact, housing; Housing 15 fens left sides housing and right side housing, U type connecting rod 5 one ends in the housing of right side and the handle 4 hinged other ends extend in the housing of left side hinged with supporting member 12; Handle 4, U type connecting rod 5, snap close 3, tripping 6, supporting member 12 respectively combined operation mechanism and drive L line dynamic/static contact, N line dynamic/static contact closes a floodgate; Snap close 3 is arranged within the actuating range of push rod of moving iron core, leakage protection system of bimetal leaf, the short circuit protection system of overload protective device, and can be touched by said system respectively; Supporting member 12 in the housing of left side is " J " type supporting member, " J " type supporting member 12 is hinged by pin-and-hole 21 and housing 15, the lower end and the N line moving contact 11 of " J " type supporting member 12 are slidingly matched, N line moving contact 11 moves hinged by the hole 31 of having strong market potential with housing 15, moving contact spring 10 1 ends are against on the housing, and the other end is fixed on the N line moving contact 11.When handle 4 closes a floodgate, interlock snap close 3, tripping 6, U type connecting rod 5 drive " J " supporting member 12,7 motions of L line moving contact, " J " type supporting member 12 will promote N line moving contact 11 and carry out first the contact with N line fixed contact 9, and L line moving contact 7 contacts with L line fixed contact 8 again thereafter; When right side housing inner lock buckle 3 is transshipped by external force, under the situation of short circuit and electric leakage, tripping 6 tripping operation interlock U type connecting rods 5 drive L line moving contact 7, " J " type supporting member 12 returns, behind L line moving contact 7 and L line fixed contact 8 separating brakes, N line moving contact 11 does not in time reset under the reaction force of moving contact spring 10 owing to be not subjected to the active force of " J " type supporting member 12, the lower end of " J " type supporting member 12 is provided with a rectangular recess 22, " J " type supporting member 12 closes a floodgate the N line moving contact 11 that promotes to be embedded in the lower end rectangular recess 22 during combined floodgate with N line fixed contact 9, N line moving contact 11 can improve the reliability when closing a floodgate owing to be embedded in the groove 22 and can not swing; In addition, the contact-making surface 32 preferred design camber faces of N line moving contact 11 and groove to reduce contact friction force, increase useful life, improve product reliability.
Claims (4)
1, a kind of the two poles of the earth residual current circuit breaker comprises overload protective device, short circuit protection system, leakage protection system, snap close, handle, connecting rod, tripping, supporting member, L line moving contact, L line fixed contact, N line moving contact, N line fixed contact, housing; It is characterized in that: described N line moving contact (11) moves hinged by the hole of having strong market potential (31) and housing (15), described supporting member (12) is hinged by pin-and-hole (21) and housing (15), and the lower end of supporting member (12) and N line moving contact (11) are slidingly matched.
2, the two poles of the earth according to claim 1 residual current circuit breaker, it is characterized in that: described supporting member (12) is " J " type supporting member.
3, the two poles of the earth according to claim 2 residual current circuit breaker, it is characterized in that: there is a rectangular recess (22) described " J " type supporting member (12) lower end.
4, the two poles of the earth according to claim 3 residual current circuit breaker is characterized in that: described N line moving contact (11) is an arcwall face with the contact-making surface (32) of groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420081085 CN2749047Y (en) | 2004-07-26 | 2004-07-26 | Bipolar earth leakage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420081085 CN2749047Y (en) | 2004-07-26 | 2004-07-26 | Bipolar earth leakage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2749047Y true CN2749047Y (en) | 2005-12-28 |
Family
ID=35720539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420081085 Expired - Lifetime CN2749047Y (en) | 2004-07-26 | 2004-07-26 | Bipolar earth leakage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2749047Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183434A (en) * | 2014-07-16 | 2014-12-03 | 浙江天正电气股份有限公司 | Electric-leakage circuit breaker with reverse-wiring structure |
-
2004
- 2004-07-26 CN CN 200420081085 patent/CN2749047Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183434A (en) * | 2014-07-16 | 2014-12-03 | 浙江天正电气股份有限公司 | Electric-leakage circuit breaker with reverse-wiring structure |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140726 Granted publication date: 20051228 |