CN102332370A - Small-sized earth leakage circuit breaker - Google Patents
Small-sized earth leakage circuit breaker Download PDFInfo
- Publication number
- CN102332370A CN102332370A CN201110261785A CN201110261785A CN102332370A CN 102332370 A CN102332370 A CN 102332370A CN 201110261785 A CN201110261785 A CN 201110261785A CN 201110261785 A CN201110261785 A CN 201110261785A CN 102332370 A CN102332370 A CN 102332370A
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- moving contact
- mesochite
- utmost point
- point moving
- lever
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Abstract
The invention discloses a small-sized earth leakage circuit breaker, which comprises a shell, an operating mechanism, and a bimetallic strip, an electromagnetic coil, a wiring board, a zero-sequence current transformer and an electric wire which are arranged in the shell, wherein the shell comprises a middle shell and an outer shell which is arranged on the two sides of the middle shell; the operating mechanism comprises a handle, a lever, an L pole moving contact bracket, an N pole moving contact bracket, an L pole moving contact and an N pole moving contact; the lever is connected with the handle; the L pole moving contact bracket is connected to the lever through a shaft and synchronously rotates with the lever; the N pole moving contact bracket is arranged on the other side of the middle shell opposite to the lever; the L pole moving contact and the N pole moving contact are arranged on the L pole moving contact bracket and the N pole moving contact bracket respectively; the shaft passes through the middle shell and acts on the N pole moving contact bracket; the lever drives the N pole moving contact bracket through the shaft and synchronously rotates the N pole moving contact bracket with the L pole moving contact bracket; and the middle shell is provided with a slotted hole which is suitable for the shaft to move. The small-sized earth leakage circuit breaker has the advantages of more consistent switching time of the L pole moving contact and the N pole moving contact, easier operating mechanism, lower cost and high convenience in assembly.
Description
Technical field
The present invention relates to a kind of contactor, especially a kind of RCCB.
Background technology
RCCB is the switch of ability auto-action when leakage current surpasses predetermined value in the circuit, is a kind of product of extensive use, can protect the safety of the person and electrical equipment.
Existing RCCB; Comprise housing, operating mechanism is installed on two gold plaques, solenoid, terminal block, zero sequence current mutual inductor, electric wire and other electronic devices and components in the housing; Said housing comprises mesochite and is installed on the shell of mesochite both sides; The said pair of gold plaque and solenoid are positioned at the same side of mesochite, and said operating mechanism comprises handle, the lever that is rotationally connected with handle; Drive L utmost point moving contact rack and the L utmost point moving contact that rotates with lever coaxial through axle; And the relative rotating N utmost point of housing moving contact rack is connected with N utmost point moving contact rack and the N utmost point moving contact of coaxial rotation, and N utmost point moving contact rack and L utmost point moving contact rack are connected to the diverse location of lever through axle; And can under the drive of lever, rotate through axle, and N utmost point moving contact rack links to each other and lever and N utmost point moving contact through axle respectively in different positions.Make that the L utmost point moving contact and the N utmost point moving contact of operating mechanism structure are inconsistent on the time of switch, influence the accuracy of operating mechanism structure, structure is also comparatively complicated; Weight is bigger; Production cost is higher, and assembly program is many, and N utmost point moving contact rack is bigger; Needing bigger space mounting, is very disadvantageous for intensive RCCB is installed.Existing in addition RCCB; Be connected with the electric wire that passes mesochite and zero sequence current mutual inductor between the movable end of its pair gold plaque and the solenoid; Because it is careful inadequately to install, often the frictional force between electric wire and mesochite or the shell can stop moving of two gold plaque movable ends, makes it can't be crooked or inadequately crooked; Cause the sensitivity of two gold plaques to descend, influence the performance of RCCB.
Summary of the invention
The problem that the present invention will solve is to improve existing RCCB L utmost point moving contact and N utmost point moving contact inconsistent problem on the time of switch, and improves problems such as operating mechanism complicacy, cost height, assembling complicacy simultaneously.
In order to overcome the above problems, the present invention provides a kind of small-sized RCCB, comprises housing and operating mechanism; Be installed on two gold plaques, solenoid, terminal block, zero sequence current mutual inductor, electric wire in the housing, the said pair of gold plaque and solenoid are positioned at the same side of mesochite, and said zero sequence current mutual inductor pair gold plaques relatively is positioned at the opposite side of mesochite; Said pair of gold plaque comprises movable end and stiff end; Said housing comprises mesochite and is installed on the shell of mesochite both sides that said operating mechanism comprises handle, the lever that is connected with handle; Be connected in and lever and the L utmost point moving contact rack that rotates synchronously with lever through axle; Lever is located at the N utmost point moving contact rack of mesochite opposite side relatively, is located at L utmost point moving contact and N utmost point moving contact on L utmost point moving contact rack and the N utmost point moving contact rack respectively, and described axle passes mesochite and acts on N utmost point moving contact rack; Said lever drives N utmost point moving contact rack and makes it with L utmost point moving contact rack rotates synchronously through axle, and said mesochite is provided with a slotted eye that adapts to the axle activity.
Said N utmost point moving contact rack is provided with the hole that supplies axle to insert.
Be provided with torsion spring between said mesochite and the N utmost point moving contact rack.
Said pair of gold plaque movable end institute wire connecting is positioned at a side of mesochite, and said pair of gold plaque stiff end institute wire connecting passed described mesochite and zero sequence current mutual inductor.
Be connected with electric wire between said solenoid and the two gold plaque movable end, be connected with electric wire between the said pair of gold plaque stiff end and the terminal block.
Said mesochite correspondence is positioned at two gold plaque stiff ends and is provided with the hole that supply lines passes.
Said terminal block passes mesochite and is connected with electric wire at the opposite side of mesochite.
Small-sized RCCB of the present invention, L utmost point moving contact and N utmost point moving contact drive through same axle, rotate synchronously with lever, make their switching time more consistent, and operating mechanism are simpler, cost is lower, assembling is comparatively convenient.
Description of drawings
Accompanying drawing 1 is the structural representation that small-sized RCCB of the present invention is provided with L utmost point moving contact one side
Accompanying drawing 2 is structural representations that small-sized RCCB of the present invention is provided with N utmost point moving contact one side
Accompanying drawing 3 is the structural representations after small-sized RCCB of the present invention is removed mesochite
Accompanying drawing 4 is sketch mapes that two gold plaques of small-sized RCCB of the present invention and solenoid are installed on mesochite
Accompanying drawing 5 is sketch mapes of the two gold plaque institutes of small-sized RCCB of the present invention wire connecting trend
1 is handle; 2 is lever; 3 is axle; 4 is L utmost point moving contact; 5 is L utmost point moving contact rack; 6 is N utmost point moving contact; 7 is N utmost point moving contact rack; 8 is two gold plaques; 9 is solenoid; 10 is mesochite; 11 is torsion spring; 12 is terminal block; 13 is the hole; 14 is slotted eye; 15 is zero sequence current mutual inductor; 17 is electric wire; 18 is electric wire; 81 is the movable end of two gold plaques; 82 is the stiff end of two gold plaques.
Embodiment
Below in conjunction with accompanying drawing a kind of small-sized RCCB of the present invention is described further.
Shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of small-sized RCCB of present embodiment comprises housing; Operating mechanism; Be installed on two gold plaques 8, solenoid 9, terminal block 12, zero sequence current mutual inductor 15, electric wire and other electronic devices and components in the housing, said housing comprises mesochite 10 and is installed on the shell of mesochite 10 both sides, and the said pair of gold plaque 8 and solenoid 9 are positioned at the same side of mesochite 10; Said operating mechanism comprises handle 1; The lever 2 that is rotationally connected with handle 1 drives L utmost point moving contact rack 5 and L utmost point moving contact 4 with lever 2 coaxial 3 rotations through axle 3, is positioned at the N utmost point moving contact rack 7 and the N utmost point moving contact 6 of mesochite 10 opposite sides with respect to L utmost point moving contact rack 5 and L utmost point moving contact 4; N utmost point moving contact rack 7 relative housings are rotatable; Be connected with N utmost point moving contact rack 7 and the coaxial 3 N utmost point moving contacts 6 that rotate, described axle 3 passes mesochite 10 and acts on N utmost point moving contact rack 7 itself and L utmost point moving contact rack 5 are rotated synchronously, and said mesochite 10 is provided with the slotted eye 14 that respective shaft 3 moves.Make L utmost point moving contact 4 and N utmost point moving contact 6 act on lever 2 same positions, rotate synchronously, make their switching time more consistent, and operating mechanism is simpler, cost is lower, assembling is comparatively convenient with lever 2 through same axle 3.
Said N utmost point moving contact rack 7 is provided with the hole that supplies axle 3 to insert, and when axle 3 rotates, also can drive N utmost point moving contact rack 7 and therewith rotate.Can certainly be that axle 3 passes a side that is positioned at N utmost point moving contact rack 7 behind the mesochite 10, when it rotates, equally also can drive N utmost point moving contact rack 7 and therewith rotate.Be provided with torsion spring 11 between said mesochite 10 and the N utmost point moving contact rack 7, through the active force of torsion spring 11, it is more reliable to make that N utmost point moving contact rack 7 resets.
As shown in Figure 5; Said small-sized RCCB also comprises two gold plaques 8, solenoid 9, terminal block 12, zero sequence current mutual inductor 15, the electric wire that is installed in the housing; The said pair of gold plaque 8 and solenoid 9 are positioned at the same side of mesochite 10; The two relatively gold plaques 8 of said zero sequence current mutual inductor 15 are positioned at the opposite side of mesochite 10; Said pair of gold plaque 8 comprises movable end 81 and stiff end 82, and 81 wire connecting 17 of said pair of gold plaque movable end are positioned at a side of mesochite 10, and 82 wire connecting 18 of said pair of gold plaque stiff end are passed described mesochite 10 and zero sequence current mutual inductor 15.81 wire connecting 17 of two gold plaque movable ends are positioned at a side of mesochite 10, need not pass mesochite 10, so can not receive the frictional force of mesochite 10, moving of two gold plaque movable ends 81 is unaffected fully.In this instance, said solenoid 9 links to each other through electric wire 17 with two gold plaque movable ends 81, and said mesochite 10 is provided with the hole 13 that supply lines 18 passes, and two gold plaque stiff ends 82 link to each other through the electric wire 18 that passes hole 13 with terminal block 12.Solenoid 9 is positioned at the same side of mesochite 10 with two gold plaques 8, can not influence moving of two gold plaque movable ends 81 fully so be located at the electric wire 17 of movable end, and the bending of two gold plaques 8 does not receive the influence of electric wire 17 fully, and performance is sensitiveer.Certainly, also can be transformed between solenoid 9 and the two gold plaque stiff end 82 and be connected with electric wire 18, the company's of establishing electric wire 17 between the said pair of gold plaque movable end 81 and the terminal block 12.In addition, saidly be located at hole 13 correspondences that mesochite supply lines 18 passes and be positioned at two gold plaque stiff ends 82, make electric wire 18 pass hole 13 and can be connected in two gold plaque stiff ends 82 nearby.
Said terminal block passes mesochite, is connected with electric wire 18 at the opposite side of mesochite.Because terminal block and zero sequence current mutual inductor 15 lay respectively at the both sides of mesochite; And need pass zero sequence current mutual inductor 15 from the electric wire 18 that terminal block picks out; So terminal block passes the design of mesochite, reach the part of terminal block and the same side that zero sequence current mutual inductor 15 is positioned at mesochite, can make electric wire 18 need not be how once pass mesochite; Make simple in structure, easy for installation.
Of the present inventionly be not limited to above embodiment and conversion.
Claims (7)
1. small-sized RCCB; Comprise housing and operating mechanism; Be installed on two gold plaques (8), solenoid (9), terminal block (12), zero sequence current mutual inductor (15), electric wire in the housing; Said pair of gold plaque (8) and solenoid (9) are positioned at the same side of mesochite (10); The two relatively gold plaques (8) of said zero sequence current mutual inductor (15) are positioned at the opposite side of mesochite (10), and said pair of gold plaque (8) comprises movable end (81) and stiff end (82), and said housing comprises mesochite (10) and is installed on the shell of mesochite (10) both sides; Said operating mechanism comprises handle (1); The lever (2) that is connected with handle (1), through the L utmost point moving contact rack (5) that axle (3) is connected in lever (2) and rotates synchronously with lever (2), lever (2) is located at the N utmost point moving contact rack (7) of mesochite (10) opposite side relatively; Be located at L utmost point moving contact (4) and N utmost point moving contact (6) on L utmost point moving contact rack (5) and the N utmost point moving contact rack (7) respectively; It is characterized in that: described axle (3) passes mesochite and acts on N utmost point moving contact rack (7), and said lever (2) drives N utmost point moving contact rack (7) through axle (3) and rotates synchronously with L utmost point moving contact rack (5), and said mesochite (10) is provided with and adapts to the movable slotted eye (14) of axle (3).
2. a kind of small-sized RCCB according to claim 1 is characterized in that: said N utmost point moving contact rack (7) is provided with the hole that supplies axle (3) to insert.
3. a kind of small-sized RCCB according to claim 1 is characterized in that: be provided with torsion spring (15) between said mesochite (10) and the N utmost point moving contact rack (7).
4. according to a kind of small-sized RCCB of arbitrary phase described in the claim 1 to 3; It is characterized in that: said pair of gold plaque movable end (81) institute's wire connecting (17) is positioned at a side of mesochite (10), and said pair of gold plaque stiff end (82) institute's wire connecting (18) is passed described mesochite (10) and zero sequence current mutual inductor (15).
5. a kind of small-sized RCCB according to claim 4; It is characterized in that: be connected with electric wire (17) between said solenoid (9) and the two gold plaque movable end (81), be connected with electric wire (18) between said pair of gold plaque stiff end (82) and the terminal block (12).
6. a kind of small-sized RCCB according to claim 5 is characterized in that: corresponding two gold plaque stiff end (82) positions of said mesochite (10) are provided with the hole that supply lines (18) passes.
7. according to claim 5 or 6 described a kind of small-sized RCCBs, it is characterized in that: said terminal block (12) passes mesochite (10) and is connected with electric wire (18) at the opposite side of mesochite (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110261785A CN102332370A (en) | 2011-09-06 | 2011-09-06 | Small-sized earth leakage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110261785A CN102332370A (en) | 2011-09-06 | 2011-09-06 | Small-sized earth leakage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102332370A true CN102332370A (en) | 2012-01-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110261785A Pending CN102332370A (en) | 2011-09-06 | 2011-09-06 | Small-sized earth leakage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102332370A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709130A (en) * | 2012-05-16 | 2012-10-03 | 上海良信电器股份有限公司 | Integrated thermomagnetic system bracket of small circuit breaker and manufacturing method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0807313A1 (en) * | 1995-02-03 | 1997-11-19 | AEG Niederspannungstechnik GmbH | Line safety switch |
| CN201749830U (en) * | 2010-06-07 | 2011-02-16 | 德力西电气有限公司 | MCB capable of opening and closing neutral pole |
| CN201820720U (en) * | 2010-10-11 | 2011-05-04 | 大江控股集团有限公司 | Residual current circuit breaker |
| CN202221745U (en) * | 2011-09-06 | 2012-05-16 | 浙江加西亚电子电器有限公司 | Small-size electric leakage circuit breaker |
-
2011
- 2011-09-06 CN CN201110261785A patent/CN102332370A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0807313A1 (en) * | 1995-02-03 | 1997-11-19 | AEG Niederspannungstechnik GmbH | Line safety switch |
| EP0807313B1 (en) * | 1995-02-03 | 2002-05-15 | AEG Niederspannungstechnik GmbH | Line safety switch |
| CN201749830U (en) * | 2010-06-07 | 2011-02-16 | 德力西电气有限公司 | MCB capable of opening and closing neutral pole |
| CN201820720U (en) * | 2010-10-11 | 2011-05-04 | 大江控股集团有限公司 | Residual current circuit breaker |
| CN202221745U (en) * | 2011-09-06 | 2012-05-16 | 浙江加西亚电子电器有限公司 | Small-size electric leakage circuit breaker |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709130A (en) * | 2012-05-16 | 2012-10-03 | 上海良信电器股份有限公司 | Integrated thermomagnetic system bracket of small circuit breaker and manufacturing method thereof |
| CN102709130B (en) * | 2012-05-16 | 2014-12-03 | 上海良信电器股份有限公司 | Integrated thermomagnetic system bracket of small circuit breaker and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Yueqing East Street North Baixiang Town Industrial Zone 325603 Bai TA Wang Zhejiang province Wenzhou City No. 545 Applicant after: GACIA ELECTRICAL APPLIANCE CO., LTD. Address before: Yueqing East Street North Baixiang Town Industrial Zone 325603 Bai TA Wang Zhejiang province Wenzhou City No. 545 Applicant before: Zhejiang Gacia Electrical Appliances Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: ZHEJIANG GACIA ELECTRICAL APPLIANCES CO., LTD. TO: GACIA ELECTRICAL APPLIANCE CO., LTD. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120125 |