CN108695117B - Operating mechanism of double-contact miniature circuit breaker - Google Patents
Operating mechanism of double-contact miniature circuit breaker Download PDFInfo
- Publication number
- CN108695117B CN108695117B CN201810686547.XA CN201810686547A CN108695117B CN 108695117 B CN108695117 B CN 108695117B CN 201810686547 A CN201810686547 A CN 201810686547A CN 108695117 B CN108695117 B CN 108695117B
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- Prior art keywords
- lever
- lock catch
- connecting rod
- double
- contact
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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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/14—Electrothermal mechanisms
- H01H71/16—Electrothermal mechanisms with bimetal element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
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Abstract
The operating mechanism of the double-contact miniature circuit breaker comprises a handle, a U-shaped connecting rod, a lock catch, a lever, a moving contact, a double Jin Tuokou connecting rod, a handle counter-force spring, a lock catch counter-force spring, a lever counter-force spring and a contact pressure spring, wherein the handle is movably connected with the lever through the U-shaped connecting rod, two sides of a moving contact positioning column of the lever are respectively provided with a moving contact, and the moving contacts are flexibly connected through the contact pressure spring; the moving contact and the coaxial same-direction rotating along the moving contact positioning column of the lever; the lock catch is flexibly connected with the lever through a lock catch counterforce spring; the lock catch and the lever rotate coaxially; the lock catch is connected with the double-gold through a double-gold tripping rod; the other end of the U-shaped connecting rod is annularly surrounded by an engagement opening of the lock catch and a lever boss to form a movable engagement mode; the arc extinguishing device has the characteristics of simple structure, reasonable part, good arc extinguishing effect, long service life and the like.
Description
Technical Field
The invention relates to an operating mechanism of a double-contact miniature circuit breaker, and belongs to the technical field of circuit breakers.
Background
At present, the miniature circuit breaker is widely used in places such as industry, business, high-rise and civil houses, is mainly used for illumination of office buildings, families and the like, overload short-circuit protection of distribution lines and equipment, and is also used for infrequent on-off and conversion of the lines; however, in the existing circuit breaker with the 18mm module fire zero line capable of being disconnected, no arc extinguishing system is designed on the zero line, and the number of exhaust channels behind an arc extinguishing chamber of the zero line is small, so that the operating mechanism components are many, and the breaking time and the service life of the circuit breaker are influenced.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the operating mechanism of the double-contact miniature circuit breaker, which has the advantages of simple structure, reasonable part, good arc extinguishing effect and long service life.
The invention aims at completing the technical scheme that the operating mechanism of the double-contact miniature circuit breaker comprises a handle, a U-shaped connecting rod, a lock catch, a lever, a moving contact, a double Jin Tuokou connecting rod, a handle counter force spring, a lock catch counter force spring, a lever counter force spring and a contact pressure spring, wherein the handle is movably connected with the lever through the U-shaped connecting rod, two sides of a moving contact positioning column of the lever are respectively provided with a moving contact, and the moving contacts are flexibly connected through the contact pressure spring; the moving contact and the coaxial same-direction rotating along the moving contact positioning column of the lever; the lock catch is flexibly connected with the lever through a lock catch counterforce spring; the lock catch and the lever rotate coaxially; the lock catch is connected with the double-gold through the double-gold release rod.
As preferable: the other end of the U-shaped connecting rod is annularly surrounded by an engagement opening of the lock catch and a lever boss to form a movable engagement mode; the handle is connected with the shell through a handle counter-force spring, and the lever is connected with the shell through a lever counter-force spring; the U-shaped connecting rod forms an included angle with a boss of the lever in a closing state.
The invention belongs to improvement of the prior art, and has the characteristics of simple structure, reasonable part, good arc extinguishing effect, long service life and the like.
Drawings
Fig. 1 is a schematic diagram of the off-state structure of the present invention.
Fig. 2 is a schematic view of the closed state structure of the present invention.
Fig. 3 is a schematic diagram of an exploded construction of the present invention.
Fig. 4 is a perspective view of a side lever according to the present invention.
Fig. 5 is a perspective view of another lateral lever of the present invention.
Fig. 6 is a schematic view of a side latch structure according to the present invention.
FIG. 7 is a schematic view of another side latch structure of the present invention.
Detailed Description
The invention will be described in detail below with reference to the attached drawings: the invention discloses an operating mechanism of a double-contact miniature circuit breaker, which is shown in figures 1-7, and comprises a handle 1, a U-shaped connecting rod 2, a lock catch 11, a lever 10, moving contacts 3 and 5, a double-gold tripping connecting rod 9, a handle counter-force spring, a lock catch counter-force spring 12, a lever counter-force spring 7 and contact pressure springs 4 and 6, wherein the handle 1 is movably connected with the lever 10 through the U-shaped connecting rod 2, two sides of a moving contact positioning column of the lever 10 are respectively provided with one moving contact 3 and 5, and the moving contacts 3 and 5 are flexibly connected through the contact pressure springs 4 and 6; the moving contacts 3 and 5 coaxially rotate along the moving contact positioning column of the lever 10 in the same direction; the lock catch 11 is flexibly connected with the lever 10 through a lock catch counterforce spring 12; the lock catch 11 rotates coaxially with the lever 10; the lock catch 11 is connected with the double-gold through the double-gold tripping rod 9.
The other end of the U-shaped connecting rod 2 is annularly surrounded by the engagement opening of the lock catch 11 and the boss of the lever 10 to form a movable engagement mode; the handle 1 is connected with the shell through a handle counter-force spring, and the lever 10 is connected with the shell through a lever counter-force spring 7; the U-shaped connecting rod 2 forms an included angle with a boss of the lever 10 in a closing state.
Examples: the invention discloses an operating mechanism of a double-contact miniature circuit breaker, which is shown in figures 1-7 and comprises a handle 1, a U-shaped connecting rod 2, a lock catch 11, a lever 10, moving contacts 3 and 5, a double-gold tripping connecting rod 9, a handle counter-force spring, a lock catch counter-force spring 12, a lever counter-force spring 7 and contact pressure springs 4 and 6.
One end 21 of the U-shaped connecting rod 2 is inserted into the connecting hole 101 of the handle 1; the other end 22 of the U-shaped connecting rod 2 is clamped in a joint formed by the upper edge 1132 and the lower edge 1131 of the conical groove of the lock catch 11 and the boss 105 of the lever 10, and the other end 22 of the U-shaped connecting rod 2 is movably limited in the conical slotted hole 106 of the lever 10 after the release;
the two moving contacts 3, 5 are symmetrically arranged at two sides of the lever, and the specific structure is as follows: the upper hole 31 of one side moving contact 3 is sleeved on the lower convex column 1031 of the rod 10, and the upper convex end 33 of the moving contact 3 is clamped at the clamping groove 1081 above the lower convex column 1031 of the lever 10; the central hole 43 of the contact pressure spring 4 is sleeved in the lower convex column 1031 of the lever 10, one end 42 of the contact pressure spring 4 is hooked at the middle outer convex block 32 of the moving contact 3, and the other end 41 of the contact pressure spring 4 is clamped into the middle outer convex groove 1021 of the lever 10;
the upper hole 51 of the movable contact 5 on the other side is sleeved on the lower convex column 1032 of the rod 10, and the upper convex end 53 of the movable contact 5 is clamped at the clamping groove 1082 above the lower convex column 1032 of the lever 10; the central hole 63 of the contact pressure spring 6 is sleeved into the lower end convex column 1032 of the lever 10, one end 62 of the contact pressure spring 6 is hooked at the middle outer convex block 52 of the moving contact 5, and the other end 61 of the contact pressure spring 6 is clamped into the middle outer convex groove 1022 of the lever 10.
The central hole 73 of the lever reaction spring 7 is sleeved on the middle convex column 1042 of the lever 10, one end 72 of the lever reaction spring 7 is clamped at the lower part of the lever 10, and one end 71 of the lever reaction spring 7 is clamped on the outer convex column of the shell;
the middle hole 1112 of the lock catch 11 is concentric with the central hole 1041 of the lever 10, and the adjacent surface 116 of the lock catch 11 is coincident with the adjacent surface 1043 of the lever 10; a shaft 8 is secured to the base through the central bore 1041 of the lever 10 and the intermediate bore 1112 of the locking aperture 11.
The central hole 123 of the latch reaction spring 12 is fitted into the central hole column 1111 of the latch 11, and one end 121 of the latch reaction spring 12 is engaged with the upper one of the bosses 101 of the lever 10 and the other end 122 is engaged with the lower one of the bosses 112 of the latch 11.
The double-gold trip link 9 is fitted into the groove of the middle cap, and the front end hook 91 of the double-gold trip link 9 is freely adjacent to the lower end hook 115 of the latch 11.
When the pushing handle 1 rotates to a limit position on the shell along the direction indicated by an arrow shown in fig. 1, the circuit breaker is in a closed state as shown in fig. 2, and at the moment, the middle rod part 23 of the U-shaped connecting rod 2 and the upper concave-convex surface 105 of the lever 10 form an obtuse angle with an upward opening; pushing the handle in the direction of the arrow shown in fig. 2, the circuit breaker returns from the closed state to the open state shown in fig. 1.
It should be understood that the foregoing embodiments are merely illustrative of the present invention and are not intended to limit the scope of the present invention, and any structural modifications, changes in scale and size without departing from the spirit of the present invention are intended to fall within the scope of the present invention without affecting the efficacy and objects achieved by the present invention.
Claims (1)
1. An operating mechanism of a double-contact miniature circuit breaker is characterized in that: the device comprises a handle, a U-shaped connecting rod, a lock catch, a lever, a moving contact, a double Jin Tuokou connecting rod, a handle reaction spring, a lock catch reaction spring, a lever reaction spring and a contact pressure spring;
one end part of the U-shaped connecting rod is inserted into the connecting hole of the handle; the other end part of the U-shaped connecting rod is clamped in a meshing opening formed by the upper edge and the lower edge of the conical groove of the lock catch and the boss of the lever, and the other end part of the U-shaped connecting rod is movably limited in the conical groove hole of the lever after the release;
the two moving contacts are symmetrically arranged at two sides of the lever, and the specific structure is as follows: the upper hole of the moving contact on one side is sleeved on the lower convex column of the lever, and the upper convex end of the moving contact is clamped at the clamping groove above the lower convex column of the lever; the central hole of the contact pressure spring is sleeved into the lower convex column of the lever, one end part of the contact pressure spring is hooked at the middle outer convex block of the moving contact, and the other end part of the contact pressure spring is clamped into the middle outer convex groove of the lever;
the upper hole of the movable contact on the other side is sleeved on the lower convex column of the lever, and the upper convex end of the movable contact is clamped at the clamping groove above the lower convex column of the lever; the central hole of the contact pressure spring is sleeved into the lower convex column of the lever, one end part of the contact pressure spring is hooked at the middle outer convex block of the moving contact, and the other end part of the contact pressure spring is clamped into the middle outer convex groove of the lever;
the central hole of the lever reaction spring is sleeved on the convex column in the middle of the lever, one end part of the lever reaction spring is clamped at the lower part of the lever, and one end part of the lever reaction spring is clamped on the convex column of the shell;
the middle hole of the lock catch is concentric with the center hole of the lever, and the adjacent surface of the lock catch is overlapped with the adjacent surface of the lever; a shaft passes through the central hole of the lever and the middle hole of the lock hole and is fixed on the base;
the central hole of the lock catch reaction spring is sleeved on the middle hole column of the lock catch, one end part of the lock catch reaction spring is clamped on the upper convex column of the lever, and the other end part is clamped on the lower convex column of the lock catch;
the double Jin Tuokou connecting rod is arranged in the groove of the middle cover, and the front end hook of the double-gold tripping connecting rod is freely adjacent to the lower end hook of the lock catch;
when the pushing handle rotates to a limit position on the shell, the circuit breaker is in a closed state, and at the moment, an obtuse angle with an upward opening is formed between the middle rod part of the U-shaped connecting rod and the concave-convex surface on the upper part of the lever;
pushing the handle, the circuit breaker is restored from the closed state to the open state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810686547.XA CN108695117B (en) | 2018-06-28 | 2018-06-28 | Operating mechanism of double-contact miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810686547.XA CN108695117B (en) | 2018-06-28 | 2018-06-28 | Operating mechanism of double-contact miniature circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108695117A CN108695117A (en) | 2018-10-23 |
| CN108695117B true CN108695117B (en) | 2023-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810686547.XA Active CN108695117B (en) | 2018-06-28 | 2018-06-28 | Operating mechanism of double-contact miniature circuit breaker |
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| Country | Link |
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| CN (1) | CN108695117B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112309796B (en) * | 2020-11-17 | 2024-02-13 | 天津航空机电有限公司 | Auxiliary contact device of general module of circuit breaker |
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| JP2005190972A (en) * | 2003-12-26 | 2005-07-14 | Mitsubishi Electric Corp | Circuit breaker |
| WO2012045209A1 (en) * | 2010-10-09 | 2012-04-12 | Fang Huapeng | Miniature breaker |
| CN103500690A (en) * | 2013-09-30 | 2014-01-08 | 长城电器集团有限公司 | Energy storage device of circuit breaker |
| CN204303728U (en) * | 2015-01-14 | 2015-04-29 | 天津科帕尔科技有限公司 | A kind of miniature circuit breaker with high throughflow lightning current ability |
| WO2016029645A1 (en) * | 2014-08-27 | 2016-03-03 | 浙江正泰电器股份有限公司 | Operation mechanism of breaker |
| CN105428171A (en) * | 2015-12-23 | 2016-03-23 | 温州东极电气有限公司 | Breaker |
| CN205564680U (en) * | 2016-02-24 | 2016-09-07 | 浙江正泰电器股份有限公司 | Circuit breaker |
| CN206422027U (en) * | 2017-01-04 | 2017-08-18 | 浙江正泰电器股份有限公司 | Circuit breaker operation mechanism |
| CN107275161A (en) * | 2017-06-27 | 2017-10-20 | 浙江美格尔电气科技有限公司 | A kind of miniature circuit breaker |
| CN206628429U (en) * | 2017-04-13 | 2017-11-10 | 厦门宏发开关设备有限公司 | A kind of moving contact Kuai He mechanisms and the breaker for possessing moving contact Kuai He mechanisms |
| CN208796932U (en) * | 2018-06-28 | 2019-04-26 | 美高电气科技有限公司 | The operating mechanism of double-contact miniature circuit breaker |
-
2018
- 2018-06-28 CN CN201810686547.XA patent/CN108695117B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005190972A (en) * | 2003-12-26 | 2005-07-14 | Mitsubishi Electric Corp | Circuit breaker |
| WO2012045209A1 (en) * | 2010-10-09 | 2012-04-12 | Fang Huapeng | Miniature breaker |
| CN103500690A (en) * | 2013-09-30 | 2014-01-08 | 长城电器集团有限公司 | Energy storage device of circuit breaker |
| WO2016029645A1 (en) * | 2014-08-27 | 2016-03-03 | 浙江正泰电器股份有限公司 | Operation mechanism of breaker |
| CN204303728U (en) * | 2015-01-14 | 2015-04-29 | 天津科帕尔科技有限公司 | A kind of miniature circuit breaker with high throughflow lightning current ability |
| CN105428171A (en) * | 2015-12-23 | 2016-03-23 | 温州东极电气有限公司 | Breaker |
| CN205564680U (en) * | 2016-02-24 | 2016-09-07 | 浙江正泰电器股份有限公司 | Circuit breaker |
| CN206422027U (en) * | 2017-01-04 | 2017-08-18 | 浙江正泰电器股份有限公司 | Circuit breaker operation mechanism |
| CN206628429U (en) * | 2017-04-13 | 2017-11-10 | 厦门宏发开关设备有限公司 | A kind of moving contact Kuai He mechanisms and the breaker for possessing moving contact Kuai He mechanisms |
| CN107275161A (en) * | 2017-06-27 | 2017-10-20 | 浙江美格尔电气科技有限公司 | A kind of miniature circuit breaker |
| CN208796932U (en) * | 2018-06-28 | 2019-04-26 | 美高电气科技有限公司 | The operating mechanism of double-contact miniature circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108695117A (en) | 2018-10-23 |
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