CN106653511B - Novel operation control device for miniature circuit breaker - Google Patents
Novel operation control device for miniature circuit breaker Download PDFInfo
- Publication number
- CN106653511B CN106653511B CN201710102274.5A CN201710102274A CN106653511B CN 106653511 B CN106653511 B CN 106653511B CN 201710102274 A CN201710102274 A CN 201710102274A CN 106653511 B CN106653511 B CN 106653511B
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- China
- Prior art keywords
- handle
- supporting block
- mounting boss
- moving contact
- tension spring
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
- H01H71/521—Details concerning the lever handle
Abstract
The invention relates to a novel operation control device for a miniature circuit breaker, which comprises a shell bottom plate, a handle arranged on the shell bottom plate, a supporting block which is positioned on one side of the handle and is rotatably connected with the shell bottom plate, a jump buckle which is arranged on the supporting block and is in transmission connection with the handle, a lock catch which is matched with the jump buckle for use, a moving contact fixedly connected with the supporting block and a tension spring connected with the moving contact, wherein one end of the tension spring is hooked in a tension spring mounting hole of the moving contact, and the other end of the tension spring is hooked on a tension spring mounting boss on the shell bottom plate. Compared with the prior art, the device has the advantages of simple and compact integral structure, flat structure, reduced thickness of each part, more miniaturization of the miniature circuit breaker, simple and convenient assembly, good economic practicability, easy popularization and good application prospect.
Description
Technical Field
The invention belongs to the technical field of circuit breaker control, and relates to a novel operation control device for a miniature circuit breaker.
Background
The operation control mechanism is one of the most important components in the small circuit breaker and is used for performing the closing, opening and tripping functions of the circuit breaker. The main force spring in the operation control mechanism mainly plays the roles of pulling the moving contact to break a circuit, generating contact pressure and generating overtravel. The main force spring in the existing operation control mechanism basically adopts two structural forms of a tension spring and a torsion spring, most products adopt the tension spring form at present, and only a few companies adopt the torsion spring form. The difficulty of spring force control of the torsion spring is greater than that of tension control of the tension spring, and the torsion spring is easy to warp or distort other parts or components, so that the torsion spring type operating mechanism is more complex than the tension spring type operating mechanism, and contact parameters are difficult to control.
At present, almost all parts in the small circuit breaker operation control mechanism on the market need riveting or welding in advance, then assemble operating mechanism, and the process is complicated, and the part is difficult to adopt the platyzization structure simultaneously.
Chinese patent application No. 201210296674.1 discloses a circuit breaker control device, including: the pull rod is used for moving along the horizontal direction under the action of external force; one end of the linkage device is connected with the pull rod, and the linkage device is driven to move when the pull rod moves; the handle, the one end of handle with linkage's the other end is connected, the other end of handle is connected outside circuit breaker, works as during the linkage motion, drive the handle motion to utilize the handle control the opening and shutting of outside circuit breaker. The technical scheme disclosed in the above patent changes the motion of pull rod horizontal direction into the motion of handle in vertical direction through addding aggregate unit to make the circuit breaker can vertically place in the distribution box.
Chinese patent application No. 201610327371.X discloses a control device for a circuit breaker, including a housing, a drive lever for controlling a circuit breaker operating handle to rotate to close a circuit breaker, wherein one end of the drive lever is a drive end, and the other end is inserted into the housing and is in running fit with the housing, the housing is provided with a through groove for insertion of an insertion rod, the housing is internally provided with a drive plate and a swing arm, the drive plate is in sliding fit with the housing, a pot of the swing arm is sleeved on the drive lever to be in linkage fit with the drive lever, the other end extends to a sliding track of the drive plate when sliding forward, the drive plate is provided with a drive surface for driving the insertion rod to move upward when the drive plate slides backward, and the housing is also provided with a power source for controlling the.
Disclosure of Invention
The object of the present invention is to overcome the above-mentioned drawbacks of the prior art by providing a novel operation control device for a miniature circuit breaker, which is simple and compact in overall structure, easy to manufacture and control in size, capable of reducing the thickness of each part, fast in breaking speed, and easy to assemble.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a novel operation control device for miniature circuit breaker, the device includes the housing bottom plate, the handle of setting on the housing bottom plate, be located handle one side and with housing bottom plate rotatable coupling's supporting shoe, the jump that sets up on the supporting shoe and be connected with the handle transmission is detained, with the hasp that the cooperation of jumping is used, the extension spring that is connected with supporting shoe fixed connection's moving contact and with the moving contact, the one end hook of this extension spring inlays in the extension spring mounting hole of moving contact, the other end hook is hung on the extension spring mounting boss on the housing bottom plate.
And a connecting rod is arranged between the handle and the jump buckle and is in transmission connection with the jump buckle through the connecting rod.
The connecting rod is provided with an arc-shaped bending section, and the handle and the jump buckle are respectively provided with a connecting rod mounting hole matched with the connecting rod.
The shell bottom plate is provided with a supporting block mounting boss, and the supporting block is rotatably arranged on the shell bottom plate through the supporting block mounting boss.
The supporting block is provided with a jump buckle mounting boss, a lock buckle mounting boss and a moving contact mounting boss which are respectively matched with the jump buckle, the lock buckle and the moving contact.
The lock catch mounting boss is sleeved with a return spring, the top of the supporting block mounting boss is provided with a return spring mounting boss, one end of the return spring is fixedly connected with the return spring mounting boss, and the other end of the return spring is fixedly connected with the lock catch.
The moving contact comprises an installation part and a contact arm fixedly connected with the installation part, one end of the installation part connected with the contact arm is provided with a first installation hole matched with the reset spring installation boss, and the other end of the installation part connected with the contact arm is provided with a second installation hole matched with the moving contact installation boss.
The tension spring mounting hole is positioned between the first mounting hole and the second mounting hole.
The shell bottom plate on be equipped with handle installation boss, the handle pass through handle installation boss and rotationally set up on the shell bottom plate.
During actual use, in the process of closing, when the handle rotates clockwise, the handle pushes the connecting rod to move rightwards, the jump buckle is meshed with the lock catch under the pushing of the connecting rod, after the jump buckle is meshed with the lock catch, the supporting block rotates clockwise around the supporting block mounting boss on the shell base under the pushing of the connecting rod, the moving contact on the supporting block also rotates clockwise along with the supporting block, and at the moment, the tension spring is stretched and generates restoring tension to the moving contact. On the contrary, in the process of opening the brake, when the handle rotates anticlockwise, the handle drives the connecting rod to move leftwards, after the handle moves past the dead point position of the four-bar mechanism in the device, the return tension generated by the tension spring on the moving contact pulls the moving contact backwards, and the moving contact drives the supporting block to rapidly return to the off position of the circuit breaker. In the tripping process during actual use, the operation control device is in a closing state, the lock catch is pushed to rotate anticlockwise, the lock catch is separated from the tripping buckle and is not engaged any more, the four-bar mechanism in the device is immediately tripped, and the tension spring pulls the moving contact and the supporting block to return to the disconnecting position of the circuit breaker.
Compared with the prior art, the invention has the following characteristics:
1) the tension spring is used as the main force spring, so that the breaking speed is high, the structure is simple, other parts or components cannot be warped or distorted, and the service life is greatly prolonged;
2) from the assembly perspective, the parts do not need to be processed in advance (such as riveting, welding and other processes), the process is simple, the assembly is easy, the assembly time is greatly shortened, and the assembly efficiency is high;
3) the miniature circuit breaker has the advantages that the flat structure is adopted, the parts are simple in structure and easy to manufacture and control the size, the thickness of each part can be reduced, the miniature circuit breaker is more miniaturized, the economic practicality is good, the popularization is easy, and the application prospect is good.
Drawings
FIG. 1 is a schematic view of the device of the present invention in the off state;
FIG. 2 is a schematic view of the device of the present invention in a closed position;
FIG. 3 is a schematic view of a partial structure of a housing base in the apparatus of the present invention;
FIG. 4 is a schematic view of the support block of the apparatus of the present invention;
FIG. 5 is a schematic view of the structure of the handle of the device of the present invention;
FIG. 6 is a schematic structural diagram of a movable contact in the device of the present invention;
FIG. 7 is a schematic view of the structure of the jump button of the device of the present invention;
FIG. 8 is a schematic view of a latch of the device of the present invention;
FIG. 9 is a schematic view of the structure of the connecting rod of the device of the present invention;
FIG. 10 is a schematic view of the tension spring of the device of the present invention;
FIG. 11 is a schematic view of the structure of a return spring in the device of the present invention;
the notation in the figure is:
the device comprises a shell base plate 1, a handle 2, a supporting block 3, a jump buckle 4, a lock catch 5, a movable contact 6, a tension spring 7, a tension spring mounting hole 8, a tension spring mounting boss 9, a connecting rod 10, a connecting rod mounting hole 11, a supporting block mounting boss 12, a jump buckle mounting boss 13, a lock catch mounting boss 14, a movable contact mounting boss 15, a reset spring 16, a reset spring mounting boss 17, a reset spring mounting boss 18, a mounting part 19, a contact arm 20, a first mounting hole 21, a second mounting hole and a handle mounting boss 22.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Example (b):
as shown in fig. 1-2, a novel operation control device for a miniature circuit breaker comprises a housing bottom plate 1, a handle 2 arranged on the housing bottom plate 1, a supporting block 3 which is arranged on one side of the handle 2 and is rotatably connected with the housing bottom plate 1, a jump buckle 4 which is arranged on the supporting block 3 and is in transmission connection with the handle 2, a lock catch 5 which is matched with the jump buckle 4, a moving contact 6 which is fixedly connected with the supporting block 3 and a tension spring 7 which is connected with the moving contact 6, wherein one end of the tension spring 7 is hooked in a tension spring mounting hole 8 of the moving contact 6, and the other end is hooked on a tension spring mounting boss 9 on the housing bottom plate 1. A connecting rod 10 is arranged between the handle 2 and the jump buckle 4 and is in transmission connection with the jump buckle 4 through the connecting rod 10. The shell bottom plate 1 is provided with a handle mounting boss 22, and the handle 2 is rotatably arranged on the shell bottom plate 1 through the handle mounting boss 22.
As shown in fig. 3 to 11, the housing bottom plate 1 is provided with a support block mounting boss 12, and the support block 3 is rotatably disposed on the housing bottom plate 1 through the support block mounting boss 12. The supporting block 3 is provided with a jump buckle mounting boss 13, a lock buckle mounting boss 14 and a moving contact mounting boss 15 which are respectively matched with the jump buckle 4, the lock buckle 5 and the moving contact 6. The lock catch mounting boss 14 is sleeved with a return spring 16, the top of the supporting block mounting boss 12 is provided with a return spring mounting boss 17, one end of the return spring 16 is fixedly connected with the return spring mounting boss 17, and the other end of the return spring is fixedly connected with the lock catch 5.
The connecting rod 10 is a connecting rod 10 with an arc-shaped bending section, and connecting rod mounting holes 11 matched with the connecting rod 10 are respectively arranged on the handle 2 and the jump buckle 4.
The moving contact 6 comprises an installation part 18 and a contact arm 19 fixedly connected with the installation part 18, one end of the installation part 18 connected with the contact arm 19 is provided with a first installation hole 20 matched with the reset spring installation boss 17, and the other end is provided with a second installation hole 21 matched with the moving contact installation boss 15. The tension spring mounting hole 8 is located between the first mounting hole 20 and the second mounting hole 21.
In practical use, in the process of closing, when the handle 2 rotates clockwise, the handle 2 pushes the connecting rod 10 to move rightwards, the trip buckle 4 is pushed by the connecting rod 10 to be meshed with the lock buckle 5, after the trip buckle 4 is meshed with the lock buckle 5, the supporting block 3 rotates clockwise around the supporting block mounting boss 12 on the shell bottom plate 1 under the pushing of the connecting rod 10, the moving contact 6 on the supporting block 3 also rotates clockwise along with the moving contact, and at the moment, the tension spring 7 is stretched and generates restoring tension to the moving contact 6. On the contrary, in the process of opening the brake, when the handle 2 rotates anticlockwise, the handle 2 drives the connecting rod 10 to move leftwards, after the handle moves past the dead point position of the four-bar mechanism in the device, the return tension generated by the tension spring 7 on the moving contact 6 pulls the moving contact 6 back reversely, and the moving contact 6 drives the supporting block 3 to rapidly return to the off position of the circuit breaker. In the tripping process during actual use, the operation control device is in a closing state, the lock catch 5 is pushed to rotate anticlockwise, the lock catch 5 is separated from the trip catch 4 and is not engaged any more, the four-bar mechanism in the device is released immediately, and the tension spring 7 pulls the moving contact 6 and the supporting block 3 to return to the disconnecting position of the circuit breaker.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (2)
1. A novel operation control device for a miniature circuit breaker is characterized by comprising a shell bottom plate (1), a handle (2) arranged on the shell bottom plate (1), a supporting block (3) which is positioned at one side of the handle (2) and is rotatably connected with the shell bottom plate (1), a jump buckle (4) which is arranged on the supporting block (3) and is in transmission connection with the handle (2), a lock catch (5) which is matched with the jump buckle (4) for use, a moving contact (6) which is fixedly connected with the supporting block (3) and a tension spring (7) which is connected with the moving contact (6), wherein one end of the tension spring (7) is hooked in a tension spring mounting hole (8) of the moving contact (6), and the other end is hooked on a tension spring mounting boss (9) on the shell bottom plate (1),
the shell base plate (1) is provided with a supporting block mounting boss (12), the supporting block (3) is rotatably arranged on the shell base plate (1) through the supporting block mounting boss (12), the supporting block (3) is provided with a jump buckle mounting boss (13), a lock buckle mounting boss (14) and a moving contact mounting boss (15) which are respectively matched with the jump buckle (4), the lock buckle (5) and the moving contact (6), the lock buckle mounting boss (14) is sleeved with a reset spring (16), the top of the supporting block mounting boss (12) is provided with a reset spring mounting boss (17), one end of the reset spring (16) is fixedly connected with the reset spring mounting boss (17), and the other end of the reset spring (16) is fixedly connected with the lock buckle (5);
a connecting rod (10) is arranged between the handle (2) and the jump buckle (4) and is in transmission connection with the jump buckle (4) through the connecting rod (10), the connecting rod (10) is a connecting rod (10) with an arc-shaped bending section, and connecting rod mounting holes (11) matched with the connecting rod (10) are respectively formed in the handle (2) and the jump buckle (4);
moving contact (6) including installation department (18) and with installation department (18) fixed connection's contact arm (19), installation department (18) one end that is connected with contact arm (19) seted up with reset spring installation boss (17) looks adaptation first mounting hole (20), second mounting hole (21) with moving contact installation boss (15) looks adaptation are seted up to the other end, extension spring mounting hole (8) be located between first mounting hole (20) and second mounting hole (21).
2. The novel operation control device for the small size circuit breaker according to claim 1, wherein the housing base plate (1) is provided with a handle mounting boss (22), and the handle (2) is rotatably provided on the housing base plate (1) by the handle mounting boss (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710102274.5A CN106653511B (en) | 2017-02-24 | 2017-02-24 | Novel operation control device for miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710102274.5A CN106653511B (en) | 2017-02-24 | 2017-02-24 | Novel operation control device for miniature circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106653511A CN106653511A (en) | 2017-05-10 |
| CN106653511B true CN106653511B (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710102274.5A Active CN106653511B (en) | 2017-02-24 | 2017-02-24 | Novel operation control device for miniature circuit breaker |
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| CN (1) | CN106653511B (en) |
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| CN101630613A (en) * | 2008-07-15 | 2010-01-20 | 浙江正泰电器股份有限公司 | Operation mechanism of low-voltage circuit breaker |
| US9236210B2 (en) * | 2011-12-14 | 2016-01-12 | Siemens Aktiengesellschaft | Electrical switch |
| CN205582850U (en) * | 2016-04-26 | 2016-09-14 | 浙江威利坚科技股份有限公司 | Operating mechanism of leakage circuit breaker |
| CN106229233A (en) * | 2016-08-26 | 2016-12-14 | 加西亚电子电器股份有限公司 | A kind of miniature circuit breaker |
| CN107230601A (en) * | 2016-07-15 | 2017-10-03 | 上海良信电器股份有限公司 | A kind of external small type circuit breaker operating mechanism of electric energy meter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10133878B4 (en) * | 2001-07-12 | 2004-07-08 | Siemens Ag | Switchgear with a key switch |
| CN102881530B (en) * | 2012-08-28 | 2014-12-17 | 浙江天正电气股份有限公司 | Operating mechanism and miniature circuit breaker |
| CN203721658U (en) * | 2014-01-02 | 2014-07-16 | 浙江德隆电器有限公司 | Energy storing device |
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2017
- 2017-02-24 CN CN201710102274.5A patent/CN106653511B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2407450Y (en) * | 2000-01-29 | 2000-11-22 | 浙江德力西电器股份有限公司 | Actuating mechanism of small size circuit breaker |
| CN2938385Y (en) * | 2006-08-17 | 2007-08-22 | 浙江省志明电气进出口有限公司 | Leakage circuit breaker |
| CN101170032A (en) * | 2007-11-27 | 2008-04-30 | Tcl低压电器(无锡)有限公司 | Quick close machine of small breaker |
| CN101630613A (en) * | 2008-07-15 | 2010-01-20 | 浙江正泰电器股份有限公司 | Operation mechanism of low-voltage circuit breaker |
| US9236210B2 (en) * | 2011-12-14 | 2016-01-12 | Siemens Aktiengesellschaft | Electrical switch |
| CN205582850U (en) * | 2016-04-26 | 2016-09-14 | 浙江威利坚科技股份有限公司 | Operating mechanism of leakage circuit breaker |
| CN107230601A (en) * | 2016-07-15 | 2017-10-03 | 上海良信电器股份有限公司 | A kind of external small type circuit breaker operating mechanism of electric energy meter |
| CN106229233A (en) * | 2016-08-26 | 2016-12-14 | 加西亚电子电器股份有限公司 | A kind of miniature circuit breaker |
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| Publication number | Publication date |
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| CN106653511A (en) | 2017-05-10 |
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