CN112053922A - Operating mechanism of remote control circuit breaker - Google Patents
Operating mechanism of remote control circuit breaker Download PDFInfo
- Publication number
- CN112053922A CN112053922A CN202010871551.0A CN202010871551A CN112053922A CN 112053922 A CN112053922 A CN 112053922A CN 202010871551 A CN202010871551 A CN 202010871551A CN 112053922 A CN112053922 A CN 112053922A
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- CN
- China
- Prior art keywords
- lock catch
- circuit breaker
- shaft
- operating mechanism
- moving contact
- 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.)
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- 230000000670 limiting effect Effects 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000004146 energy storage Methods 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
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
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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
- H01H71/128—Manual release or trip mechanisms, e.g. for test purposes
-
- 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
Landscapes
- Breakers (AREA)
Abstract
An operating mechanism for a remote controlled circuit breaker. The method is characterized in that: a shaft is fixed in the shell, a long groove is arranged on the movable contact, the movable contact is movably matched with the shaft through the long groove, and the movable contact is connected with a first elastic element for driving the movable contact to move towards the opening direction; the lock catch is rotatably arranged on the shaft and is connected with a second elastic piece which drives the lock catch to be matched with the jump buckle in a locking way; the shaft is also provided with a limiting structure for limiting the moving contact to axially move towards the lock catch. The advantages are that: by adopting the scheme, a reliable over travel distance can be provided through the long groove, and the first elastic piece provides final pressure, so that the structure is simpler, the installation is more convenient, the material is saved, and the cost is reduced; in addition, the axial movement of the moving contact is limited, the problem that the moving contact extrudes the lock catch to enable the lock catch 5 to shift due to the fact that axial displacement occurs in the action process is avoided, the position of the lock catch is stable, the action is reliable, and therefore the action performance of the circuit breaker is guaranteed.
Description
Technical Field
The invention relates to a circuit breaker, in particular to an operating mechanism for remotely controlling the circuit breaker.
Background
The miniature circuit breaker is also called miniature circuit breaker, has the characteristics of advanced structure, reliable performance, strong breaking capacity, small and exquisite appearance and the like, is used for overload and short-circuit protection of illumination, distribution lines and equipment of office buildings, houses and similar buildings, and can also be used for the infrequent on-off operation and conversion of the lines.
However, the operating mechanism of the conventional circuit breaker is generally complex in structure, and is easy to deviate along the axial direction in the action process, so that the action is unstable, and the performance of the operating mechanism is affected.
Disclosure of Invention
In order to overcome the defects of the background art, the invention provides an operating mechanism for a remote control circuit breaker, which solves the problems of complex structure and unstable performance of the existing operating mechanism.
The technical scheme adopted by the invention is as follows: an operating mechanism of a remote control circuit breaker comprises a shell, and a handle, a moving contact, a trip and a lock catch which are arranged in the shell, wherein the handle is rotatably arranged on the shell, and the trip is rotatably arranged on the moving contact and is connected with the handle through a connecting rod; a shaft is fixed in the shell, an elongated slot is arranged on the moving contact, the moving contact is movably matched with the shaft through the elongated slot, and the moving contact is connected with a first elastic element for driving the moving contact to move towards the opening direction; the lock catch is rotatably arranged on the shaft and is connected with a second elastic piece which drives the lock catch to be matched with the jump buckle in a locking way; and the shaft is also provided with a limiting structure for limiting the moving contact to axially move towards the lock catch.
The limiting structure is a shaft sleeve sleeved on the shaft, a limiting ring is formed at one end of the shaft sleeve and is integrally T-shaped, the limiting ring of the shaft sleeve abuts against the moving contact, the other end of the shaft sleeve abuts against the shell, and the lock catch is rotatably arranged on the shaft sleeve.
And one end of the limiting ring, which is abutted against the moving contact, is of a smooth cambered surface structure.
A contact part is formed on the left side of the lower end of the moving contact, an installation part for installing a jump buckle extends from the upper right end of the moving contact, a spring seat is further arranged below the installation part, the first elastic part is a spring, one end of the first elastic part abuts against the spring seat, and the other end of the first elastic part abuts against the shell or other parts fixedly connected with the shell; the elongated slot is located on the left side of the spring seat.
The jump buckle is provided with a groove at a position close to the middle part, and the mounting part is embedded into the groove of the jump buckle.
The handle is positioned on the left side of the moving contact and comprises an outer cylinder, an inner cylinder and an energy storage torsion spring, wherein the outer cylinder and the inner cylinder are coaxially sleeved, the energy storage torsion spring is connected with the outer cylinder and the inner cylinder, a notch is formed in the lower end of the outer cylinder, and a clamping table extending out of the notch is formed in the lower end of the inner cylinder; a rotating rod is further arranged below the handle, a buckle is arranged at one end of the rotating rod, and the rotating rod is connected with a third elastic piece for driving the buckle to be buckled with the clamping table; the jump buckle is connected with the inner cylinder in a linkage way through the connecting rod.
The lock catch is provided with a cylindrical boss, the center of the cylindrical boss is provided with a through hole corresponding to the shaft, and the second elastic piece adopts a torsion spring and is sleeved on the cylindrical boss.
The outer side wall of the cylindrical boss is provided with a limiting boss.
And the lock catch is also provided with a linkage shaft hole.
The invention has the beneficial effects that: by adopting the scheme, a reliable over travel distance can be provided through the long groove, and the first elastic piece provides final pressure, so that the structure is simpler, the installation is more convenient, the material is saved, and the cost is reduced; in addition, the axial movement of the moving contact is limited, the problem that the moving contact extrudes the lock catch to enable the lock catch 5 to shift due to the fact that axial displacement occurs in the action process is avoided, the position of the lock catch is stable, the action is reliable, and therefore the action performance of the circuit breaker is guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of a circuit breaker according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an operating mechanism according to an embodiment of the present invention.
Fig. 3 is an exploded view of the handle portion of the operating mechanism of the present invention with the handle portion removed.
Fig. 4 is a schematic view of a handle portion of the operating mechanism according to the embodiment of the present invention.
Fig. 5 is an exploded view of the handle portion of the operating mechanism according to the embodiment of the present invention.
FIG. 6 is a schematic view of the actuator of the present invention with the handle portion removed.
Fig. 7 is a schematic structural diagram of a movable contact according to an embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a jump buckle according to an embodiment of the present invention.
Fig. 9 is a schematic structural view of a latch according to an embodiment of the invention.
Fig. 10 is a schematic structural view of a shaft sleeve according to an embodiment of the present invention.
Detailed Description
The embodiments of the invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1-3, an operating mechanism of a remote control circuit breaker includes a housing 1, and a handle 2, a movable contact 3, a trip 4, a latch 5, a connecting rod 6, a shaft 7, a first elastic member 8, a second elastic member 9, and a shaft sleeve 10 disposed in the housing 1.
The movable contact is characterized in that the handle 2 is rotatably mounted on the shell 1, two ends of the shaft 7 are fixed to inner walls of two sides of the shell, the movable contact 3 is provided with an elongated groove 31 and is movably matched with the shaft 7 through the elongated groove 31, the jump buckle 4 is rotatably mounted on the movable contact 3 and is in linkage connection with the handle 2 through the connecting rod 6, the shaft sleeve 10 is sleeved outside the shaft 7, one end of the shaft sleeve abuts against the movable contact 3, the other end of the shaft sleeve abuts against the inner wall of the shell 1, the movable contact 3 is limited on the shaft 7 and is prevented from moving axially along the shaft 7, the lock catch 5 is rotatably mounted on the shaft sleeve 10, the first elastic part 8 is arranged between the movable contact 3 and the shell 1 and can drive the movable contact 3 to move in a brake separating direction, and the second elastic part 9 is arranged on the lock catch 5 and can drive.
When the breaker is switched on, the driving handle 2 rotates, the handle 2 can push the trip buckle 4 through the connecting rod 6 and drive the moving contact 3 to rotate around the shaft 7, when the moving contact 3 is contacted with the fixed contact of the breaker, the handle 2 can still be continuously pushed, the moving contact 3 overcomes the elastic force of the first elastic part 8 and slides along the long groove 31 until the switch-on is completed, a reliable over-travel distance can be provided through the long groove 31, and the first elastic part 8 provides final pressure, so that the breaker is simpler in structure, more convenient to install, material is saved, and cost is reduced.
In addition, a shaft sleeve 10 is arranged outside the shaft 7 and used for limiting the axial movement of the moving contact 3, so that the problem that the moving contact 3 displaces in the action process due to the fact that the moving contact extrudes the lock catch 5 through axial displacement to enable the lock catch 5 to move can be avoided, the position of the lock catch 5 is stable, the action is reliable, and the action performance of the circuit breaker is guaranteed.
As shown in fig. 4-5, the handle 2 includes an outer cylinder 21, an inner cylinder 22, an energy storage torsion spring 23, and a handle torsion spring 26, the outer cylinder 21 is rotatably installed on the housing 1, the inner cylinder 22 is disposed in the outer cylinder 21 and can be coaxially and rotatably disposed with the outer cylinder 21, the energy storage torsion spring 23 is connected with the outer cylinder 21 and the inner cylinder 22 to provide energy storage elastic force, and the handle torsion spring 26 can provide elastic force for the outer cylinder 21 to be rapidly reset when opening the brake.
The urceolus 21 lower extreme is equipped with breach 211, the inner tube 22 lower extreme is equipped with the card platform 221 who stretches out breach 211, just card platform 221 can move at breach 211, 2 below of handle still are equipped with rotary rod 24, rotary rod 24 is rotatable installs on casing 1, and its one end is equipped with buckle 241, rotary rod 24 still is connected with the third elastic component 25 of ordering about buckle 241 and card platform 221 looks lock. Among them, the third elastic member 25 is preferably a torsion spring.
The connecting rod 6 is connected with the inner cylinder 22, during closing action, the inner cylinder 22 is in a stop state due to the fact that the clamping platform 221 of the inner cylinder is clamped with the clamping buckle 241 of the rotating rod 24, only the outer cylinder 21 rotates independently, energy is stored by compressing the energy storage torsion spring 23, after the outer cylinder 21 rotates by a certain angle, the side wall of one side of the notch 211 of the outer cylinder 21 is in contact with the rotating rod 24, the rotating rod 24 is pushed to rotate by overcoming the elastic force of the third elastic piece 25, the clamping buckle 241 is separated from the clamping platform 221, the inner cylinder 22 can rotate rapidly under the elastic force action of the energy storage torsion spring 23 at the moment, rapid closing is achieved through the connecting rod 6, rapid and closing action is enabled to be rapid.
As shown in fig. 6-10, a contact portion 32 is formed on the left side of the lower end of the movable contact 3 for contacting and communicating with a fixed contact in a circuit breaker, a mounting portion 33 is extended from the right upper end of the movable contact 3 for mounting the trip 4, a spring seat 34 is disposed below the mounting portion 33 on the right side of the movable contact 3, the elongated groove 31 is located at the left side of the spring seat 34, the first elastic member 8 is a spring, one end of the first elastic member abuts against the spring seat 34, and the other end of the first elastic member abuts against the housing 1, so that the spring can provide a biasing elastic force, the movable contact 3 can rotate counterclockwise around the shaft 7 through the elongated groove 31, the contact portion 32 is driven to be separated from the fixed contact in the circuit breaker. Wherein, first elastic component 8 adopts the structure of spring and sets up in moving contact 3 right side position, and not only the installation is more installed, and the structure is compacter moreover to reserve enough space so that install above-mentioned handle 2 for moving contact 3 left side position.
The position that the jump buckle 4 is close to the middle part is equipped with recess 41, the installation department 33 embedding jump buckle 4 in recess 41 for moving contact 3 is located jump buckle 4 middle part, and the atress is more balanced during the action, and the action is more stable.
A limiting ring 101 is formed at one end of the shaft sleeve 10, the shaft sleeve is integrally in a T shape, the limiting ring 101 of the shaft sleeve 10 is used for abutting against the moving contact 3, and one end, abutted against the moving contact 3, of the limiting ring 101 is in a smooth cambered surface structure, so that reliable contact limiting is guaranteed, friction is small, and abrasion is reduced.
Of course, other methods such as fixing the movable contact on the shaft and forming the spacer may be used instead of using the shaft sleeve 10 to axially limit the movable contact.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The skilled person should understand that: although the invention has been described in terms of the above specific embodiments, the inventive concept is not limited thereto and any modification applying the inventive concept is intended to be included within the scope of the patent claims.
Claims (9)
1. An operating mechanism of a remote control circuit breaker comprises a shell (1), a handle (2), a movable contact (3), a trip buckle (4) and a lock catch (5), wherein the handle (2), the movable contact (3), the trip buckle (4) and the lock catch (5) are arranged in the shell (1), the handle (2) is rotatably arranged on the shell (1), and the trip buckle (4) is rotatably arranged on the movable contact (3) and is connected with the handle (2) through a connecting rod (6);
the method is characterized in that: a shaft (7) is fixed in the shell (1), a long-shaped groove (31) is formed in the moving contact (3), the moving contact (3) is movably matched with the shaft (7) through the long-shaped groove (31), and the moving contact (3) is connected with a first elastic element (8) for driving the moving contact to move towards the opening direction;
the lock catch (5) is rotatably arranged on the shaft (7), and the lock catch (5) is connected with a second elastic piece (9) which drives the lock catch to be matched with the jump buckle (4) in a locking way; and the shaft (7) is also provided with a limiting structure for limiting the moving contact (3) to axially move towards the lock catch (5).
2. The operating mechanism of a remote-controlled circuit breaker according to claim 1, characterized in that: the limiting structure is a shaft sleeve (10) sleeved on the shaft (7), a limiting ring (101) is formed at one end of the shaft sleeve (10), the whole limiting structure is T-shaped, the limiting ring (101) of the shaft sleeve (10) abuts against the movable contact (3), the other end of the shaft sleeve abuts against the shell (1), and the lock catch (5) is rotatably installed on the shaft sleeve (10).
3. The operating mechanism of a remote-controlled circuit breaker according to claim 2, characterized in that: one end of the limiting ring (101) abutting against the moving contact (3) is of a smooth cambered surface structure.
4. The operating mechanism of a remote-controlled circuit breaker according to claim 1, characterized in that: a contact part (32) is formed on the left side of the lower end of the moving contact (3), an installation part (33) for installing the jump button (4) extends from the upper right end of the moving contact, a spring seat (34) is further arranged below the installation part (33), the first elastic part (8) is a spring, one end of the first elastic part props against the spring seat (34), and the other end of the first elastic part props against the shell (1) or other parts fixedly connected with the shell (1); the long groove (31) is positioned at the left side of the spring seat (34).
5. The operating mechanism of a remote-controlled circuit breaker according to claim 4, wherein: jump and detain (4) and be close to the position in middle part and be equipped with recess (41), installation department (33) embedding jumps in recess (41) of detaining (4).
6. The operating mechanism of a remote-controlled circuit breaker according to claim 4, wherein: the handle (2) is positioned on the left side of the movable contact (3), the handle (2) comprises an outer cylinder (21), an inner cylinder (22) and an energy storage torsion spring (23) which is coaxially sleeved with the outer cylinder (21) and the inner cylinder (22), a notch (211) is formed in the lower end of the outer cylinder (21), and a clamping table (221) extending out of the notch (211) is formed in the lower end of the inner cylinder (22); a rotating rod (24) is further arranged below the handle (2), a buckle (241) is arranged at one end of the rotating rod (24), and the rotating rod (24) is connected with a third elastic piece (25) which drives the buckle (241) to be buckled with the clamping table (221); the jump buckle (4) is connected with the inner cylinder (22) in a linkage manner through a connecting rod (6).
7. The operating mechanism of a remote-controlled circuit breaker according to claim 1, characterized in that: be equipped with cylinder boss (51) on hasp (5), cylinder boss (51) center is equipped with through-hole (52) that correspond with axle (7), second elastic component (9) adopt the torsional spring to the cover is established on cylinder boss (51).
8. The operating mechanism of a remote-controlled circuit breaker according to claim 7, wherein: the outer side wall of the cylindrical boss (51) is provided with a limiting boss (53).
9. The operating mechanism of a remote-controlled circuit breaker according to claim 7, wherein: and the lock catch (5) is also provided with a linkage shaft hole (54).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010871551.0A CN112053922A (en) | 2020-08-26 | 2020-08-26 | Operating mechanism of remote control circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010871551.0A CN112053922A (en) | 2020-08-26 | 2020-08-26 | Operating mechanism of remote control circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112053922A true CN112053922A (en) | 2020-12-08 |
Family
ID=73599935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010871551.0A Pending CN112053922A (en) | 2020-08-26 | 2020-08-26 | Operating mechanism of remote control circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112053922A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114171340A (en) * | 2022-01-05 | 2022-03-11 | 浙江天正电气股份有限公司 | Quick breaking mechanism and rotary switch |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202839493U (en) * | 2012-08-28 | 2013-03-27 | 浙江天正电气股份有限公司 | Operating mechanism and miniature breaker |
| CN203674124U (en) * | 2014-01-16 | 2014-06-25 | 创奇科技有限公司 | Operation mechanism of miniaturized 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 |
-
2020
- 2020-08-26 CN CN202010871551.0A patent/CN112053922A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202839493U (en) * | 2012-08-28 | 2013-03-27 | 浙江天正电气股份有限公司 | Operating mechanism and miniature breaker |
| CN203674124U (en) * | 2014-01-16 | 2014-06-25 | 创奇科技有限公司 | Operation mechanism of miniaturized 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114171340A (en) * | 2022-01-05 | 2022-03-11 | 浙江天正电气股份有限公司 | Quick breaking mechanism and rotary switch |
| CN114171340B (en) * | 2022-01-05 | 2024-06-04 | 浙江天正电气股份有限公司 | Quick breaking mechanism and rotary switch |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201208 |