CN109585233B - Small-sized circuit breaker - Google Patents
Small-sized circuit breaker Download PDFInfo
- Publication number
- CN109585233B CN109585233B CN201811621744.XA CN201811621744A CN109585233B CN 109585233 B CN109585233 B CN 109585233B CN 201811621744 A CN201811621744 A CN 201811621744A CN 109585233 B CN109585233 B CN 109585233B
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- China
- Prior art keywords
- circuit breaker
- locking piece
- locking
- miniature circuit
- button
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- 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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Links
- 230000007246 mechanism Effects 0.000 claims abstract description 312
- 230000005540 biological transmission Effects 0.000 claims description 55
- 230000013011 mating Effects 0.000 description 13
- 206010014357 Electric shock Diseases 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- H01H71/1009—Interconnected mechanisms
-
- 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
- H01H71/58—Manual reset mechanisms which may be also used for manual release actuated by push-button, pull-knob, or slide
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- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention relates to the field of piezoelectric devices, in particular to a small-sized circuit breaker, which comprises a button mechanism, a circuit breaker shell, a locking mechanism and a locking mechanism limiting structure, wherein the button mechanism is arranged on the circuit breaker shell; when the miniature circuit breaker is in a closing state, the locking mechanism is in resisting fit with the limiting structure of the locking mechanism, so that the locking mechanism cannot retract into the circuit breaker shell from the second opening; when the button mechanism is pulled towards the outside of the breaker shell 6, the button mechanism unlocks the locking mechanism to enable the locking mechanism to retract into the breaker shell from the second opening, and the locking mechanism is in limit fit with the shell at the assembling position of the breaker; the locking mechanism of the miniature circuit breaker is in limit fit with the shell at the assembling position of the circuit breaker, so that reliable and stable operation of the miniature circuit breaker is ensured, and the locking mechanism limiting mechanism is in resisting fit with the locking mechanism in the closing state of the miniature circuit breaker, so that the locking mechanism is prevented from being released from limit fit with the shell at the assembling position of the circuit breaker, and the assembly reliability and stable operation of the miniature circuit breaker are further improved.
Description
Technical Field
The invention relates to the field of piezoelectric devices, in particular to a miniature circuit breaker.
Background
The use of the circuit breaker can effectively improve the safety and the reliable operation of electrical equipment, and in order to meet the installation requirements of different electrical equipment, the miniature circuit breaker is used as an important type of circuit breaker, and the structure of the miniature circuit breaker is various and the whole structure of the miniature circuit breaker tends to be miniaturized. The existing miniature circuit breaker has the following problems:
1. The existing miniature circuit breaker is in place after being installed, and in the electrified state, the risk of being pulled out by mistake exists, so that the reliable and stable work of the circuit breaker is not facilitated, and potential safety hazards exist.
2. In the existing miniature circuit breaker, the handle is used for conducting opening/closing operation on the circuit breaker, so that a larger operation space is needed, and under the condition that the installation space of the circuit breaker is more compact, the operation handle is used for conducting opening/closing operation on the circuit breaker, so that inconvenience is brought to a user.
3. The existing miniature circuit breaker, even if the miniature circuit breaker is provided with a locking mechanism, can guarantee that the installation of the miniature circuit breaker is reliable and stable, but the locking mechanism still fails or external force acts on the locking mechanism to destroy the limit fit condition of the shell of the locking mechanism and the short circuit assembly position, so that the reliable assembly and stable operation of the existing miniature circuit breaker still have unstable factors, and the risk that the miniature circuit breaker is pulled out under the electrified condition also exists.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a small-sized circuit breaker, wherein a locking mechanism is in limit fit with a shell at the assembling position of the circuit breaker, so that the reliable and stable operation of the assembly of the small-sized circuit breaker is ensured, and the locking mechanism limiting mechanism is in resisting fit with the locking mechanism in the closing state of the small-sized circuit breaker, so that the locking mechanism is prevented from being released from limit fit with the shell at the assembling position of the circuit breaker, and the reliable and stable operation of the assembly of the small-sized circuit breaker is further improved.
In order to achieve the above purpose, the invention adopts the following technical scheme:
A miniature circuit breaker comprises a button mechanism 1, a circuit breaker shell 6, a locking mechanism and a locking mechanism limiting structure; the button mechanism 1 is arranged at one end of the breaker housing 6 and is in sliding fit with the breaker housing 6, the locking mechanism is pivoted on the breaker housing 6, the breaker housing 6 comprises a second opening 62 which is arranged at one side of the breaker housing and is correspondingly matched with the locking mechanism, and the locking mechanism is biased to protrude out of the breaker housing 6 from the second opening 62 and is in limit fit with the housing at the assembling position of the breaker;
When the miniature circuit breaker is in a closing state, the locking mechanism is in resisting fit with the limiting structure of the locking mechanism, so that the locking mechanism cannot retract into the circuit breaker shell 6 from the second opening 62; when the button mechanism 1 is pulled toward the outside of the breaker housing 6, the button mechanism 1 unlocks the lock mechanism to retract from the second opening 62 into the breaker housing 6 and releases the limit fit with the housing in the breaker assembly position.
Preferably, the locking mechanism comprises a second locking piece 5 and a second locking spring 3, the second locking piece 5 comprises a second locking piece main body 56, a second locking piece driven arm 55 and a second locking piece protrusion 52 which are respectively arranged at two ends of the second locking piece main body 56, the second locking piece main body 56 is pivotally arranged on the circuit breaker shell 6, the second locking piece driven arm 55 is in driving fit with the button mechanism 1, the second locking spring 3 enables the second locking piece protrusion 52 to protrude outside the circuit breaker shell 6 through a second opening 62 and in limiting fit with the shell of the circuit breaker assembly position, the button mechanism 1 is pulled towards the outside of the circuit breaker shell 6, the button mechanism 1 drives the second locking piece 5 to rotate through the second locking piece driven arm 55, the second locking piece protrusion 52 is moved into the circuit breaker shell 6, and therefore limiting fit of the second locking piece protrusion 52 and the shell of the circuit breaker assembly position is released.
Preferably, when the miniature circuit breaker is in a closing state, the limiting structure of the locking mechanism is in resisting fit with the second locking piece 5, so that the second locking piece 5 is limited to rotate, and the second locking piece protrusion 52 is prevented from being in releasing limiting fit with the shell of the circuit breaker assembly position.
Preferably, the second locking member 5 further includes a mating portion disposed on the second locking member main body 56 and adapted to resist the locking mechanism limiting structure, and when the miniature circuit breaker is in the closed state, the locking mechanism limiting structure resists the mating with the mating portion, so as to limit the rotation of the second locking member 5, and after the miniature circuit breaker is opened, the locking mechanism limiting structure is separated from the mating portion.
Preferably, the limiting structure of the locking mechanism comprises a first limiting protrusion 110 arranged on the button mechanism 1, when the miniature circuit breaker is in a closing state, the first limiting protrusion 110 is in abutting fit with the second locking piece main body 56 to limit the rotation of the second locking piece 5, and after the miniature circuit breaker is opened, the first limiting protrusion 110 is separated from the second locking piece main body 56.
Preferably, the engaging portion of the second locking member 5 is a first engaging protrusion 51 provided on the second locking member body 56, and the first engaging protrusion 51 and the second locking member protrusion 52 are located on the same side of the rotation center of the second locking member 5; when the miniature circuit breaker is in a closing state, the first limiting protrusion 110 is in abutting fit with the first matching protrusion 51 to limit the rotation of the second locking piece 5, and after the miniature circuit breaker is opened, the first limiting protrusion 110 is separated from the first matching protrusion 51.
Preferably, the device also comprises an operating mechanism 7, a moving contact 57 and a fixed contact 570, wherein the button mechanism 1 is in driving connection with the operating mechanism 7, the operating mechanism 7 is connected with the moving contact 57, and the moving contact 57 and the fixed contact 570 are matched for use; when the miniature circuit breaker is in a breaking state, the button mechanism 1 is pressed, the button mechanism 1 drives the operating mechanism 7 to act, and the operating mechanism 7 drives the moving contact 57 and the fixed contact 570 to be closed.
Preferably, the locking mechanism limiting structure is arranged on the operating mechanism 7, when the miniature circuit breaker is in a closing state, the locking mechanism limiting structure is in resisting fit with the second locking piece 5 to limit the rotation of the second locking piece 5, and after the miniature circuit breaker is opened, the locking mechanism limiting structure is separated from the second locking piece 5.
Preferably, the button mechanism 1 comprises a button head 10, a button main body 11 and a first connecting rod 9, wherein the button head 10 is arranged at one end of the button main body 11 and protrudes out of the breaker shell 6, one end of the first connecting rod 9 is connected with the button main body 11, and the other end of the first connecting rod 9 is connected with the operating mechanism 7; the button mechanism 1 moves towards the closing direction, the button mechanism 1 drives the operating mechanism 7 to act through the first connecting rod 9, and the operating mechanism 7 drives the moving contact 57 and the fixed contact 570 to be closed; the button mechanism 1 moves towards the opening direction, the button mechanism 1 drives the operating mechanism 7 to act through the first connecting rod 9, and the operating mechanism 7 drives the moving contact 57 to be disconnected with the fixed contact 570.
Preferably, the operating mechanism 7 comprises a transmission member 8, a second connecting rod 70, a lock catch 71, a jump button 73, a supporting member 72 and a first return spring 74, wherein the transmission member 8 and the supporting member 72 are respectively and pivotally arranged on the breaker housing 6, the lock catch 71 and the jump button 73 are respectively and pivotally arranged on the supporting member 72, the button mechanism 1 is in driving connection with the transmission member 8 through the first connecting rod 9 of the button mechanism 1, the transmission member 8 is in driving connection with the lock catch 71 through the second connecting rod 70, the lock catch 71 and the jump button 73 are in locking fit, the supporting member 72 is connected with the movable contact 57, and the supporting member 72 is elastically connected with the breaker housing 6 through the first return spring 74; when the miniature circuit breaker is in a closing state, after the trip button 73 is driven, the trip button 73 is released from locking engagement with the lock catch 71, the operating mechanism 7 acts, and the supporting member 72 drives the moving contact 57 to be disconnected from the fixed contact 570.
Preferably, the transmission member 8 further includes a third limiting arm 81, the limiting structure of the locking mechanism includes a third limiting arm 81, one end of the third limiting arm 81 is connected with the transmission member 8, when the miniature circuit breaker is in a closing state, the other end of the third limiting arm 81 is in abutment fit with the second locking member 5 to limit the rotation of the second locking member 5, and after the miniature circuit breaker is opened, the third limiting arm 81 is separated from the second locking member 5.
Preferably, the engaging portion of the second locking member 5 is a third engaging protrusion 53 disposed on the second locking member main body 56, and the second locking member protrusion 52 and the third engaging protrusion 53 are located at the same end of the second locking member main body 56; the button mechanism 1 is pressed to enable the miniature circuit breaker to be switched on, meanwhile, the button mechanism 1 drives the transmission piece 8 to rotate through the first connecting rod 9 of the button mechanism 1, the transmission piece 8 drives the third limiting arm 81 to swing, and the third limiting arm 81 is in limiting fit with the third matching protrusion 53 to limit the second locking piece 5 to rotate.
Preferably, the limiting structure of the locking mechanism comprises a first connecting rod 9, when the miniature circuit breaker is in a closing rotation state, the first connecting rod 9 is in resisting fit with a second locking piece 5 of the locking mechanism, the rotation of the second locking piece 5 is limited, the second locking piece 5 is prevented from being in releasing limiting fit with a shell at the assembling position of the circuit breaker, and after the miniature circuit breaker is opened, the first connecting rod 9 is separated from the second locking piece 5.
Preferably, the engaging portion of the second locking member 5 is a second engaging protrusion 54 provided on a second locking member main body 56, and the second engaging protrusion 54 and the second locking member protrusion 52 are located on the same side of the rotation center of the second locking member 5; when the miniature circuit breaker is in a closing state, one end of the first connecting rod 9, which is inserted on the button main body 11, is in abutting fit with the second matching protrusion 54, so that the second locking piece 5 is limited to rotate, and after the miniature circuit breaker is opened, the first connecting rod 9 is separated from the second matching protrusion 54.
Preferably, the button mechanism 1 further includes a link mounting table 12, the link mounting table 12 is disposed on the button main body 11, one end of the first link 9 is inserted on the link mounting table 12 and protrudes on one side of the link mounting table 12, so as to form a first transmission rod 91, and when the miniature circuit breaker is in a closing state, the first transmission rod 91 is in abutting fit with the second fitting protrusion 54.
Preferably, the button mechanism 1 further includes a button mechanism driving protrusion 13, and the button mechanism driving protrusion 13 is disposed on the button body 11 of the button mechanism 1 and is in driving engagement with the second locking member driven arm 55 of the second locking member 5; the button mechanism 1 is pulled, the button mechanism 1 drives the second locking piece driven arm 55 through the button mechanism driving protrusion 13 to rotate the second locking piece 5, and the second locking piece protrusion 52 of the second locking piece 5 is released from limit fit with the shell of the circuit breaker assembly position.
Preferably, the first link 9 is in driving engagement with the locking mechanism, the button mechanism 1 is pulled towards the outside of the circuit breaker housing 6, the first link 9 drives the second locking member driven arm 55 to rotate the second locking member main body 56, the second locking member main body 56 drives the second locking member protrusion 52 to move into the circuit breaker housing 6, and the second locking member protrusion 52 is released from the limit engagement with the housing at the circuit breaker assembly position.
Preferably, the first link 9 is a U-shaped link, one end of the first link 9 passes through the link mounting table 12 of the button mechanism 1 and protrudes on one side of the link mounting table 12 to form a first transmission link 91, and the first transmission link 91 is in driving fit with the second locking member receiving arm 55 of the second locking member 5; the button mechanism 1 is pulled, and the button mechanism 1 drives the second locking piece driven arm 55 through the first transmission rod 91 to rotate the second locking piece 5, and the second locking piece protrusion 52 of the second locking piece 5 is released from limit fit with the shell of the circuit breaker assembly position.
The miniature circuit breaker comprises the locking mechanism which is pivoted on the circuit breaker shell, and the second opening of the circuit breaker shell is biased by the locking mechanism to protrude out of the circuit breaker shell and is in limit fit with the shell at the assembling position of the circuit breaker, so that the stability and reliability of the assembly of the miniature circuit breaker are ensured, the use safety and the working stability of the miniature circuit breaker are improved, the miniature circuit breaker assembled at the assembling position of the circuit breaker is prevented from being pulled out under the condition of electrification, and the electric shock risk of a user can be effectively reduced; the miniature circuit breaker further comprises the limiting structure of the locking mechanism, when the miniature circuit breaker is in a closing state, the limiting structure of the locking mechanism is in resisting fit with the locking mechanism, so that the locking mechanism cannot retract into the circuit breaker shell from the second opening, the situation that the locking mechanism fails or is not subjected to predicted external force action, and the limiting fit of the locking mechanism and the shell at the assembling position of the circuit breaker is released is avoided, the stability and the reliability of the assembling of the miniature circuit breaker are further improved, the miniature circuit breaker is prevented from being pulled out by mistake under the electrified condition, and the electric shock risk of a user is avoided.
Drawings
Fig. 1 is a schematic structural view of a miniature circuit breaker of the present invention;
Fig. 2 is a partial structural schematic view of the miniature circuit breaker of the present invention, showing the cooperation of the button mechanism driving boss of the button mechanism and the second locking member driven arm of the second locking member;
Fig. 3 is a partial structural schematic view of the miniature circuit breaker of the present invention, showing the assembly structure of the second locking member and the mating relationship of the first mating protrusion of the second locking member with the first limit protrusion of the push button mechanism;
fig. 4 is a schematic view of a partial structure of the miniature circuit breaker of the present invention, wherein a first limit protrusion of the button mechanism is in limit fit with a first fit protrusion of the second locking member to limit the rotation of the second locking member;
FIG. 5 is a schematic view of the cooperation structure of the button mechanism and the second locking member of the present invention;
Fig. 6 is a schematic structural view of the miniature circuit breaker of the present invention, showing the specific structure of the operating mechanism and the mating relationship of the operating mechanism, the button mechanism, the moving contact, and the stationary contact;
Fig. 7 is a partial structural schematic view of the miniature circuit breaker of the present invention showing the third spacing arm of the transmission member in mating relationship with the third mating protrusion of the second locking member;
Fig. 8 is a partial structural schematic view of the miniature circuit breaker of the present invention showing the spacing engagement of the third spacing arm of the transmission member with the third engagement projection of the second locking member;
Fig. 9 is a schematic structural view of the miniature circuit breaker of the present invention showing the second mating projection of the second locking member;
Fig. 10 is a partial structural schematic view of the miniature circuit breaker of the present invention showing the first transmission rod of the first link in positive engagement with the second engagement projection of the second locking member;
Fig. 11 is a partial structural schematic view of the miniature circuit breaker of the present invention, which shows the positional relationship of the first transmission rod of the first link and the second locking piece receiving arm of the second locking piece;
fig. 12 is a schematic view of a partial structure of a miniature circuit breaker according to the present invention, in which a first transmission rod of a first link is in driving engagement with a second locking member driven arm of a second locking member to rotate the second locking member, and a second locking member protrusion of the second locking member moves into a circuit breaker housing.
Detailed Description
Embodiments of the miniature circuit breaker of the present invention are further described below in conjunction with the examples presented in fig. 1-12. The miniature circuit breaker of the present invention is not limited to the description of the following embodiments.
The invention relates to a miniature circuit breaker, which comprises a button mechanism 1, a circuit breaker shell 6, a locking mechanism and a limiting structure of the locking mechanism; the button mechanism 1 is arranged at one end of the breaker housing 6 and is in sliding fit with the breaker housing 6, the locking mechanism is pivoted on the breaker housing 6, the breaker housing 6 comprises a second opening 62 which is arranged at one side of the breaker housing and is correspondingly matched with the locking mechanism, and the locking mechanism is biased to protrude out of the breaker housing 6 from the second opening 62 and is in limit fit with the housing at the assembling position of the breaker;
When the miniature circuit breaker is in a closing state, the locking mechanism is in resisting fit with the limiting structure of the locking mechanism, so that the locking mechanism cannot retract into the circuit breaker shell 6 from the second opening 62; when the button mechanism 1 is pulled toward the outside of the breaker housing 6, the button mechanism 1 unlocks the lock mechanism to retract from the second opening 62 into the breaker housing 6 and releases the limit fit with the housing in the breaker assembly position.
The miniature circuit breaker comprises the locking mechanism which is pivoted on the circuit breaker shell 6, and the second opening 62 of the circuit breaker shell 6 biased by the locking mechanism protrudes out of the circuit breaker shell 6 and is in limit fit with the shell of the circuit breaker assembly position, so that the stability and reliability of the miniature circuit breaker assembly are ensured, the use safety and the working stability of the miniature circuit breaker are improved, the miniature circuit breaker assembled at the circuit breaker assembly position is prevented from being pulled out under the condition of electrification, and the electric shock risk of a user can be effectively reduced; the miniature circuit breaker further comprises the limiting structure of the locking mechanism, when the miniature circuit breaker is in a closing state, the limiting structure of the locking mechanism is in resisting fit with the locking mechanism, so that the locking mechanism cannot retract into the circuit breaker shell 6 from the second opening 62, the situation that the locking mechanism fails or is not subjected to predicted external force action, and the limiting fit of the locking mechanism and the shell at the assembling position of the circuit breaker is released is avoided, the stability and the reliability of the assembly of the miniature circuit breaker are further improved, the miniature circuit breaker is prevented from being pulled out by mistake under the electrified condition, and the electric shock risk of a user is avoided.
It should be noted that after the miniature circuit breaker is assembled to the circuit breaker assembly position and is assembled in place, the locking mechanism is in limit fit with the shell of the circuit breaker assembly position, after the miniature circuit breaker is closed, the locking mechanism limiting structure is in resisting fit with the locking mechanism, after the miniature circuit breaker is opened, the locking mechanism limiting structure is separated from the locking mechanism, and the locking mechanism still keeps limit fit with the shell of the circuit breaker assembly position.
It should be noted that the offset of the locking mechanism protruding from the second opening 602 outside the circuit breaker housing 6 means that one end of the locking mechanism protrudes from the second opening 602 outside the circuit breaker housing 6.
It should be noted that, the locking mechanism is in resisting fit with the locking mechanism limiting structure, which means that the locking structure is in contact connection with the locking mechanism limiting structure, and the locking mechanism limiting structure limits the locking mechanism to rotate.
Preferably, the miniature circuit breaker of the invention comprises a second locking piece 5, the second locking piece 5 is pivotally arranged on the circuit breaker shell 6, one end of the second locking piece 5 is in driving fit with the button mechanism 1, the other end of the second locking piece passes through the second opening 602 to protrude out of the circuit breaker shell 6 and is in limit fit with the shell of the circuit breaker assembly position, and when the miniature circuit breaker is in a closing state, the locking mechanism limit structure is in resisting fit with the second locking piece 5 to limit the rotation of the second locking piece 5, and one end of the second locking piece 5 protruding out of the second opening 602 is prevented from being in limit fit with the shell of the circuit breaker assembly position.
According to the miniature circuit breaker disclosed by the invention, one end of the second locking piece 5 is in driving fit with the button mechanism 1, and the other end of the second locking piece is in limit fit with the shell of the circuit breaker assembly position, so that the reliability and the working stability of the miniature circuit breaker assembly are ensured, when the miniature circuit breaker is in a closing state, the limit structure of the locking mechanism is in resisting fit with the second locking piece 5, the reliability and the working stability of the miniature circuit breaker assembly are further ensured, and in a double locking mode, the miniature circuit breaker is ensured not to be pulled out by a user by mistake under the condition of electrification, and the situation of electric shock of the user is avoided.
As shown in fig. 1, 6, 9, one embodiment of the miniature circuit breaker of the present invention is shown.
The miniature circuit breaker of the invention comprises a circuit breaker shell 6, a button mechanism 1, an operating mechanism 7 arranged inside the circuit breaker shell 6, a moving contact 57 and a fixed contact 570; the button mechanism 1 is arranged at one end of the breaker shell 6 in a sliding way, the button mechanism 1 is in driving connection with the operating mechanism 7, the operating mechanism 7 is connected with the moving contact 57, and the moving contact 57 is matched with the fixed contact 570 for use; when the miniature circuit breaker is in a breaking state, the button mechanism 1 is pressed, the button mechanism 1 drives the operation mechanism 7 to act, and the operation mechanism 7 drives the movable contact 57 and the fixed contact 570 to be closed; when the miniature circuit breaker is in a closing state, the button mechanism 1 is pulled, the button mechanism 1 drives the operating mechanism 7 to act, and the operating mechanism 7 drives the moving contact 57 to be disconnected with the fixed contact 570. Compared with the existing miniature circuit breaker adopting an operating handle to perform opening/closing operation, the miniature circuit breaker disclosed by the invention has the advantages that the opening/closing operation is performed by pressing the button mechanism 1, smaller operation space is required, and the operation of a user is facilitated.
It should be noted that, as shown in fig. 1, the button mechanism 1 is pressed downward, i.e., the button mechanism 1 moves in the closing direction, and the button mechanism 1 is pulled upward, i.e., the button mechanism moves in the opening direction.
The miniature circuit breaker also comprises a locking mechanism and a locking mechanism limiting structure, wherein the locking mechanism comprises a second locking piece 5, the second locking piece 5 is pivotally arranged on a circuit breaker shell 6, one end of the second locking piece is in driving fit with the button mechanism 1, and the other end of the second locking piece penetrates through the circuit breaker shell 6 to be in limiting fit with the shell at the circuit breaker assembly position; when the miniature circuit breaker is in a closing state, the limiting mechanism of the locking mechanism is in limiting fit with the second locking piece 5 to limit the rotation of the second locking piece 5, so that the second locking piece 5 is prevented from being in limiting fit with the shell of the circuit breaker assembly position; and the button mechanism 1 is pulled, and the button mechanism 1 drives the second locking piece 5 to rotate, so that the second locking piece 5 is in limit fit with the shell of the circuit breaker assembly position.
Preferably, the miniature circuit breaker of the present invention further includes a mating portion disposed on the second locking member main body 56 of the second locking member 5 and in abutting engagement with the locking mechanism limiting structure, wherein the locking mechanism limiting structure is in abutting engagement with the mating portion when the miniature circuit breaker is in a closed state, so as to limit the rotation of the second locking member 5, and the locking mechanism limiting structure is separated from the mating portion after the miniature circuit breaker is opened.
Preferably, as shown in fig. 3 and 4, the limiting structure of the locking mechanism includes a first limiting protrusion 110 provided on the button mechanism 1, when the miniature circuit breaker is in a closed state, the first limiting protrusion 110 is in abutting engagement with the second locking member main body 56 of the second locking member 5 to limit the rotation of the second locking member 5, and after the miniature circuit breaker is opened, the first limiting protrusion 110 is separated from the second locking member main body 56. Further, as shown in fig. 3 and 4, the engaging portion is a first engaging protrusion 51 provided on the second locking member body 56, and the first limiting protrusion 110 is in limiting engagement with the first engaging protrusion 51 when the miniature circuit breaker is in a closed state. Specifically, as shown in fig. 3 and 4, the button mechanism 1 is pressed downwards to close the miniature circuit breaker, and meanwhile, the button mechanism 1 drives the first limiting protrusion 110 to move downwards and be in limiting fit with the first matching protrusion 51, so that the rotation of the second locking piece 5 is limited.
Preferably, as shown in fig. 9 and 10, the limiting structure of the locking mechanism includes a first link 9 of the button mechanism 1, when the miniature circuit breaker is in a closing state, the first link 9 is in abutting fit with the second locking piece 5 to limit the rotation of the second locking piece 5, so as to prevent the second locking piece 5 from being in releasing limiting fit with the shell of the assembling position of the circuit breaker, and after the miniature circuit breaker is opened, the first link 9 is separated from the second locking piece 5. Preferably, the engaging portion is a second engaging protrusion 54 provided on the second locking member main body 56, and when the miniature circuit breaker is in a closed state, one end of the first link 9 inserted on the button main body 11 of the button mechanism 1 is in abutting engagement with the second engaging protrusion 54 to limit the rotation of the second locking member 5, and after the miniature circuit breaker is opened, the first link 9 is separated from the second engaging protrusion 54. Further, as shown in fig. 9 and 10, one end of the first connecting rod 9 passes through the connecting rod mounting table 12 of the button mechanism 1 and protrudes from one side of the button mounting table 12 to form a first transmission rod 91, and when the miniature circuit breaker is in a closing state, the first transmission rod 91 is in abutting engagement with the second engagement protrusion 54. Specifically, as shown in fig. 9 and 10, the button mechanism 1 is pressed downwards to close the miniature circuit breaker, and meanwhile, the button mechanism 1 drives the first transmission rod 91 to move downwards and be in limit fit with the second fit protrusion 54, so that the rotation of the second locking piece 5 is limited.
Preferably, as shown in fig. 6-8, the locking mechanism limiting structure is arranged on the operating mechanism 7, when the miniature circuit breaker is in a closing state, the locking mechanism limiting structure is in abutting fit with the second locking piece 5 to limit the rotation of the second locking piece 5, and after the miniature circuit breaker is opened, the locking mechanism limiting structure is separated from the second locking piece 5. Further, as shown in fig. 6-8, the operating mechanism 7 includes a transmission member 8, the transmission member 8 is rotatably disposed on the circuit breaker housing 6, the button mechanism 1 is connected to the transmission member 8 by a first link 9, the transmission member 8 includes a third limiting arm 81, the limiting structure of the locking mechanism is the third limiting arm 81, when the miniature circuit breaker is in a closing state, the third limiting arm 81 is in limiting fit with the second locking member 5, the second locking member is limited to rotate, and after the miniature circuit breaker is opened, the third limiting arm 81 is released from limiting fit with the second locking member 5. Further, as shown in fig. 6 to 8, the engaging portion is a third engaging protrusion 53 provided on the second locking member body 56 of the second locking member 5, and the third limiting arm 81 is in limiting engagement with the third engaging protrusion 53 when the miniature circuit breaker is in the on state. Specifically, as shown in fig. 6-8, the button mechanism 1 is pressed downwards to close the miniature circuit breaker, the button mechanism 1 drives the rotating member 8 to rotate through the first connecting rod 9, and the rotating member 8 drives the third limiting arm 81 to swing clockwise and be in limiting fit with the third matching protrusion 53, so that the second locking member 5 is limited to rotate.
Preferably, as shown in fig. 1 and 5, the button mechanism 1 includes a button head 10, a button body 11 and a first link 9, wherein the button head 10 is disposed at one end of the button body 11 and protrudes outside the circuit breaker housing 6, so that a user can conveniently operate the button mechanism 1, one end of the first link 9 is inserted into the button body 11, the other end of the first link 9 is connected with the operating mechanism 7, and the button mechanism 1 is in driving connection with the operating mechanism 7 through the first link 9. Specifically, as shown in fig. 1 and 5, the button head 10 is disposed at one end of the button body 11, and one end of the first link 9 is inserted into the other end of the button body 11.
Preferably, as shown in fig. 2, the button mechanism 1 further includes a button mechanism driving protrusion 13 disposed on the button main body 11, the button mechanism driving protrusion 13 is in driving engagement with a second locking member driven arm 55 of the second locking member 5, the button mechanism 1 is pulled out of the circuit breaker housing 6, the button mechanism driving protrusion 13 drives the second locking member driven arm 55 to act, so as to rotate the second locking member 5, and the second locking member protrusion 52 of the second locking member 5 moves into the circuit breaker housing 6, thereby releasing the limit engagement of the second locking member protrusion 52 and the housing of the circuit breaker assembly position. Specifically, as shown in fig. 2, the button mechanism driving protrusion 13 is disposed at the left side of the lower end of the button body 11, the button mechanism 1 is pulled upward, and the button mechanism driving protrusion 13 drives the second locking member driven arm 55 to act, so that the second locking member 5 rotates clockwise, and the second locking member protrusion 52 moves rightward (i.e., moves into the breaker housing 6).
Preferably, as shown in fig. 11 and 12, the first link 9 has a U-shaped structure, one end of which is inserted into the button body 11 and is in driving engagement with the second locking member receiving arm 55 of the second locking member 5, and the button mechanism 1 is pulled out of the circuit breaker housing 6, the first link 9 drives the second locking member receiving arm 55 to act, so that the second locking member 5 rotates, and the second locking member protrusion 52 of the second locking member 5 moves into the circuit breaker housing 6, thereby releasing the limit engagement between the second locking member protrusion 52 and the housing in the circuit breaker assembly position. Specifically, as shown in fig. 11 and 12, the upper end of the first link 9 is inserted into the link mounting table 12 at the lower end of the button body 11 and protrudes from one side of the link mounting table 12, so as to form a first transmission rod 91, the button mechanism 1 is pulled upwards, and the upper end of the first transmission rod 91 drives the second locking member driven arm 55 to act, so that the second locking member 5 rotates clockwise, and the second locking member protrusion 52 moves rightward (i.e., moves into the breaker housing 6).
Preferably, as shown in fig. 5, the button mechanism 1 further includes a link mounting table 12, the link mounting table 12 is disposed on the button body 11, and one end of the first link 9 is inserted into the link mounting table 12 and protrudes on one side of the link mounting table 12 to form a first transmission link 91. Specifically, as shown in fig. 5, the link mounting table 12 is disposed on the right side of the lower end of the button body 11, opposite to the second locking member 5, and the upper end of the first link 9 is inserted into the link mounting table 12 and protrudes to the rear side of the link mounting table 12, so as to form a first transmission link 91.
Preferably, as shown in fig. 3 and 4, the button mechanism 1 further includes a first limit protrusion 110, and the first limit protrusion 110 is disposed on the button body 11 side of the button mechanism 1. Specifically, as shown in fig. 3 and 4, the first limiting protrusion 110 is disposed at the right side of the lower end of the button body 11.
Preferably, as shown in fig. 5, the locking mechanism 5 includes a second locking spring 3, a locking mechanism main body 56, and a second locking member driven arm 55 and a second locking member protrusion 52 respectively disposed at two ends of the locking mechanism main body 56, wherein the second locking member driven arm 55 is in driving engagement with the button mechanism 1, and the second locking spring 3 makes the second locking member protrusion 52 protrude outside the circuit breaker housing 6 through a second opening 62 of the circuit breaker housing 6 and in limiting engagement with the housing of the circuit breaker assembly position. Specifically, as shown in the direction of fig. 5, the second locking spring 3 is mounted on the breaker housing 6 through the first mounting shaft 2, the second locking spring 3 is a torsion spring, one end of the torsion spring is connected with the breaker housing 6, the other end of the torsion spring is connected with the upper end of the second locking member main body 56, the second locking member driven arm 55 is bent and connected with the upper end of the second locking member main body 56, and is bent towards the button mechanism 1, the second locking member protrusion 52 is disposed on the right side of the lower end of the second locking member main body 56, and the middle part of the second locking member main body 56 is pivotally disposed on the breaker housing 6 through the first pivot 4.
Preferably, as shown in fig. 3 and 4, the second locking member 5 further includes a first engaging protrusion 51, the first engaging protrusion 51 is provided on the second locking member body 56 of the second locking member 5, and the first engaging protrusion 51 is located on the same side of the rotation center of the second locking member 5 as the second locking member protrusion 52. Specifically, as shown in fig. 3 and 4, the first engaging protrusion 51 is provided on the left side of the second locking member body 56 between the first pivot shaft 4 and the second locking member protrusion 52, and the distance of the first engaging protrusion 51 from the first pivot shaft 4 is < the distance of the first engaging protrusion 51 from the second locking member protrusion 52.
Preferably, as shown in fig. 6 and 7, the second locking member 5 further includes a third engaging protrusion 53, the third engaging protrusion 53 is provided on the second locking member body 56 of the second locking member 5, and the second locking member protrusion 52 and the third engaging protrusion 53 of the second locking member 5 are located at the same end of the second locking member body 56. Specifically, as shown in fig. 6 and 7, the third engaging protrusion 53 is provided at the front side of the lower end of the second locking member main body 56, adjacent to the second locking member protrusion 52, and the third engaging protrusion 53 is located at the left side of the second locking member protrusion 52.
Preferably, as shown in fig. 9 and 10, the second locking member 5 further includes a second engaging protrusion 54, the second engaging protrusion 54 is provided on a second locking member body 56 of the second locking member 5, and the second engaging protrusion 54 and the second locking member protrusion 52 of the second locking member 5 are located on the same side of the rotation center of the second locking member 5. Specifically, as shown in the direction of fig. 9 and 10, the second engaging protrusion 54 is disposed at the left side of the second locking member main body 56, the second engaging protrusion 54 is located between the first pivot shaft 4 and the second locking member protrusion 52, and the upper end of the second engaging protrusion 54 is flush with the first pivot shaft 4. Preferably, the second locking member 5 is of a unitary structure.
Preferably, as shown in fig. 6, the operating mechanism 7 includes a transmission member 8, a second link 70, a latch 71, a latch 73, a support member 72 and a first return spring 74, where the transmission member 8 and the support member 72 are pivotally disposed on the breaker housing 6, the latch 71 and the latch 73 are pivotally disposed on the support member 72, the button mechanism 1 is in driving connection with the transmission member 8 through its first link 9, the transmission member 8 is in driving connection with the latch 71 through the second link 70, the latch 71 is in latching engagement with the latch 73, and the support member 74 is connected with the moving contact 57. Specifically, as shown in fig. 6, the transmission member 8 is disposed between the button mechanism 1 and the support member 72, and is pivotally disposed on the breaker housing 6 by a second pivot, the support member 72 is pivotally disposed on the breaker housing 6 by a third pivot, the trip button 73 is pivotally disposed on the support member 72 by a third pivot, and the latch 71 is pivotally disposed on the support member 72 by a fourth pivot.
Preferably, as shown in fig. 6-8, the transmission member 8 includes a third limiting arm 81, and one end of the third limiting arm 81 is connected to the transmission member 8. The button mechanism 1 is pressed to enable the miniature circuit breaker to be switched on, meanwhile, the button mechanism 1 drives the transmission piece 8 to rotate through the first connecting rod 9, and the transmission piece 8 drives the third limiting arm 81 to swing clockwise, so that the third limiting arm 81 is in limiting fit with the third matching protrusion 53 of the second locking piece 5.
As shown in fig. 6, the miniature circuit breaker of the present invention further includes a short-circuit protection mechanism disposed below the operating mechanism 7 and an overload protection mechanism disposed at the left side of the operating mechanism 7, wherein the short-circuit protection mechanism includes an electromagnetic trip, when a short-circuit fault occurs, the electromagnetic trip drives the trip 73 to rotate, so that the trip 73 is in unlocking engagement with the lock 71, the operating mechanism 7 acts, the supporting member 72 drives the moving contact 57 to disconnect from the fixed contact 570, the overload protection mechanism includes a bimetal, when an overload fault occurs, the bimetal drives the trip 73 to rotate, so that the trip 73 is in unlocking engagement with the lock 71, the operating mechanism 7 acts, and the supporting member 72 drives the moving contact 57 to disconnect from the fixed contact 570.
Preferably, as shown in fig. 6, the trip button 73 has a "structure" including a trip button first arm, a trip button second arm, and a trip button third arm, where the trip button second arm and the trip button third arm are located on a same straight line, the trip button first arm is located between the trip button second arm and the trip button third arm and perpendicular to the straight line where the trip button second arm and the trip button third arm are located, the trip button first arm is engaged with the lock catch 71, the trip button second arm is engaged with the overload protection mechanism in a driving manner, and the trip button third arm is engaged with the short circuit protection mechanism in a driving manner.
It should be noted that, the latch engagement of the latch 71 and the latch 73 means: one end of the latch 71 is overlapped with one end of the latch 73 and the action of the latch 73 is limited, and once the overlapping relation between the latch 71 and the latch 73 is broken, the latch 73 is not limited by the latch 71.
Preferably, as shown in fig. 11 and 12, the circuit breaker housing 6 includes a spring limit protrusion 603, and the first locking spring 3 has one end connected to the second locking member 5 and the other end connected to the spring limit protrusion 603. Further, as shown in fig. 12, the button mechanism 1 is pulled, and the button mechanism 1 drives the second locking member 5 to rotate, so that the second locking member driven arm 55 of the second locking member 5 is in limit fit with the spring limit protrusion 603, so as to limit the rotation range of the second locking member 5, avoid excessive swing of the second locking member 5, and damage the driving fit of the button mechanism 1 and the second locking member 5. Specifically, as shown in fig. 11 and 12, when the push button mechanism 1 is pulled up, the first transmission rod 91 of the push button mechanism 1 drives the second locking member 5 to rotate clockwise, so that the second locking member driven arm 55 is in a limit fit with the spring limit projection 603, if the first transmission rod 91 is not limited by the spring limit projection 603, the first transmission rod 91 may be moved to the upper side from the lower side of the second locking member driven arm 55, and the second locking member 5 may be reset under the drive of the first locking member 3, so that the first transmission rod 91 cannot be restored to the lower side of the second locking member driven arm 52. The same applies to the embodiment in which the button mechanism driving protrusion 13 of the button mechanism 1 of the present invention is in driving engagement with the second locking piece receiving arm 55.
Preferably, as shown in fig. 1, one embodiment of the miniature circuit breaker of the present invention.
The miniature circuit breaker of the invention comprises a circuit breaker housing 6, a button mechanism 1, an operating mechanism 7 arranged in the circuit breaker housing 6, a short-circuit protection mechanism, an overload protection mechanism, an arc extinguishing mechanism, an outgoing line terminal and an incoming line terminal. The button mechanism 1 slides and sets up in circuit breaker casing 6 upper end right side, and the end of being qualified for the next round of competitions sets up in circuit breaker casing 6 upper end and is located button mechanism left side, and arc extinguishing mechanism and short circuit protection mechanism set up in circuit breaker casing 6 lower extreme side by side about, and operating device 7 sets up between short circuit protection mechanism and button mechanism 1, overload protection mechanism sets up between end and arc extinguishing mechanism, and is located operating device 7 left side, and the end of being qualified for the next round of competitions sets up in circuit breaker casing 6 lower extreme and is located arc extinguishing mechanism and short circuit protection mechanism below. The internal space of the breaker shell 6 of the miniature breaker is reasonably planned and distributed, so that the reliable assembly and reasonable distribution of all mechanisms or elements in the breaker shell 6 are ensured, the organic cooperation among all mechanisms or elements is ensured, the internal space of the breaker shell 6 is fully utilized, the integral size of the miniature breaker is reduced, and the development trend of the miniature breaker that the size is gradually reduced is met.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (15)
1. The miniature circuit breaker is characterized by comprising a button mechanism (1), a circuit breaker shell (6), a locking mechanism and a locking mechanism limiting structure; the button mechanism (1) is arranged at one end of the breaker shell (6) and is in sliding fit with the breaker shell, the locking mechanism is pivoted on the breaker shell (6), the breaker shell (6) comprises a second opening (62) which is arranged at one side of the breaker shell and is correspondingly matched with the locking mechanism, and the locking mechanism is biased to protrude out of the breaker shell (6) from the second opening (62) and is in limit fit with the shell of the breaker assembly position;
When the miniature circuit breaker is in a closing state, the locking mechanism is in resisting fit with the limiting structure of the locking mechanism, so that the locking mechanism cannot retract into the circuit breaker shell (6) from the second opening (62);
The miniature circuit breaker further comprises an operating mechanism (7), a moving contact (57) and a fixed contact (570), wherein the operating mechanism (7) is connected with the moving contact (57), and the moving contact (57) and the fixed contact (570) are matched for use; the button mechanism (1) comprises a button head (10), a button main body (11) and a first connecting rod (9), wherein the button head (10) is arranged at one end of the button main body (11) and protrudes out of the breaker shell (6), one end of the first connecting rod (9) is connected with the button main body (11), and the other end of the first connecting rod is connected with the operating mechanism (7); the button mechanism (1) moves towards the closing direction, the button mechanism (1) drives the operating mechanism (7) to act through the first connecting rod (9), and the operating mechanism (7) drives the moving contact (57) and the fixed contact (570) to be closed; the button mechanism (1) moves towards the opening direction, the button mechanism (1) drives the operation mechanism (7) to act through the first connecting rod (9), and the operation mechanism (7) drives the movable contact (57) to be disconnected with the fixed contact (570); the first connecting rod (9) is in driving fit with the locking mechanism, the button mechanism (1) is pulled towards the outside of the circuit breaker shell (6), and the first connecting rod (9) drives the locking mechanism to be in limiting fit with the shell at the assembly position of the circuit breaker.
2. The miniature circuit breaker of claim 1, wherein: the locking mechanism comprises a second locking piece (5) and a second locking spring (3), the second locking piece (5) comprises a second locking piece main body (56) and second locking piece driven arms (55) and second locking piece protrusions (52) which are respectively arranged at two ends of the second locking piece main body (56), the second locking piece main body (56) is pivotally arranged on the circuit breaker shell (6), the second locking piece driven arms (55) are in driving fit with the button mechanism (1), the second locking piece protrusions (52) penetrate through the second holes (62) to protrude out of the circuit breaker shell (6) and are in limiting fit with the shell of the circuit breaker assembly position, the button mechanism (1) is pulled towards the outside of the circuit breaker shell (6), the second locking piece driven arms (55) are used for driving the second locking piece (5) to rotate, the second locking piece protrusions (52) are enabled to move towards the inside of the circuit breaker shell (6), and therefore limiting fit of the second locking piece protrusions (52) with the shell of the circuit breaker assembly position is relieved.
3. The miniature circuit breaker of claim 2, wherein: when the miniature circuit breaker is in a closing state, the limiting structure of the locking mechanism is in resisting fit with the second locking piece (5), the second locking piece (5) is limited to rotate, and the second locking piece bulge (52) is prevented from being in releasing limiting fit with the shell at the assembling position of the circuit breaker.
4. The miniature circuit breaker of claim 2, wherein: the second locking piece (5) further comprises a matching part which is arranged on the second locking piece main body (56) and is in resisting fit with the limiting structure of the locking mechanism, when the miniature circuit breaker is in a closing state, the limiting structure of the locking mechanism is in resisting fit with the matching part, the second locking piece (5) is limited to rotate, and after the miniature circuit breaker is opened, the limiting structure of the locking mechanism is separated from the matching part.
5. The miniature circuit breaker of claim 2, wherein: the limiting structure of the locking mechanism comprises a first limiting protrusion (110) arranged on the button mechanism (1), when the miniature circuit breaker is in a closing state, the first limiting protrusion (110) is in abutting fit with the second locking piece main body (56) to limit the second locking piece (5) to rotate, and after the miniature circuit breaker is opened, the first limiting protrusion (110) is separated from the second locking piece main body (56).
6. The miniature circuit breaker of claim 5, wherein: the matching part of the second locking piece (5) is a first matching bulge (51) arranged on the second locking piece main body (56), and the first matching bulge (51) and the second locking piece bulge (52) are positioned on the same side of the rotation center of the second locking piece (5); when the miniature circuit breaker is in a closing state, the first limiting protrusion (110) is in resisting fit with the first matching protrusion (51) to limit the rotation of the second locking piece (5), and after the miniature circuit breaker is opened, the first limiting protrusion (110) is separated from the first matching protrusion (51).
7. The miniature circuit breaker of claim 1, wherein: the locking mechanism limiting structure is arranged on the operating mechanism (7), when the miniature circuit breaker is in a closing state, the locking mechanism limiting structure is in resisting fit with the second locking piece (5), the second locking piece (5) is limited to rotate, and after the miniature circuit breaker is opened, the locking mechanism limiting structure is separated from the second locking piece (5).
8. The miniature circuit breaker of claim 7, wherein: the operating mechanism (7) comprises a transmission part (8), a second connecting rod (70), a lock catch (71), a jump buckle (73), a support part (72) and a first reset spring (74), wherein the transmission part (8) and the support part (72) are respectively and pivotally arranged on a circuit breaker shell (6), the lock catch (71) and the jump buckle (73) are respectively and pivotally arranged on the support part (72), the button mechanism (1) is in driving connection with the transmission part (8) through a first connecting rod (9) of the button mechanism (1), the transmission part (8) is in driving connection with the lock catch (71) through the second connecting rod (70), the lock catch (71) is in locking fit with the jump buckle (73), the support part (72) is connected with a movable contact (57), and the support part (72) is in elastic connection with the circuit breaker shell (6) through the first reset spring (74); when the miniature circuit breaker is in a closing state, after the jump button (73) is driven, the jump button (73) is in locking fit with the lock catch (71), the operating mechanism (7) acts, and the supporting piece (72) drives the moving contact (57) to be disconnected with the fixed contact (570).
9. The miniature circuit breaker of claim 8, wherein: the transmission piece (8) further comprises a third limiting arm (81), the limiting structure of the locking mechanism comprises the third limiting arm (81), one end of the third limiting arm (81) is connected with the transmission piece (8), when the miniature circuit breaker is in a closing state, the other end of the third limiting arm (81) is matched with the second locking piece (5) in a resisting mode, the second locking piece (5) is limited to rotate, and after the miniature circuit breaker is opened, the third limiting arm (81) is separated from the second locking piece (5).
10. The miniature circuit breaker of claim 9, wherein: the matching part of the second locking piece (5) is a third matching protrusion (53) arranged on the second locking piece main body (56), and the second locking piece protrusion (52) and the third matching protrusion (53) are positioned at the same end of the second locking piece main body (56); the button mechanism (1) is pressed to enable the miniature circuit breaker to be switched on, meanwhile, the button mechanism (1) drives the transmission piece (8) to rotate through the first connecting rod (9) of the button mechanism (1), the transmission piece (8) drives the third limiting arm (81) to swing, and the third limiting arm (81) is enabled to be in limiting fit with the third matching bulge (53) to limit the second locking piece (5) to rotate.
11. The miniature circuit breaker of claim 1, wherein: the limiting structure of the locking mechanism comprises a first connecting rod (9), when the miniature circuit breaker is in a closing rotation state, the first connecting rod (9) is in resisting fit with a second locking piece (5) of the locking mechanism, the second locking piece (5) is limited to rotate, the second locking piece (5) is prevented from being in releasing limiting fit with a shell at the assembling position of the circuit breaker, and after the miniature circuit breaker is opened, the first connecting rod (9) is separated from the second locking piece (5).
12. The miniature circuit breaker of claim 11, wherein: the matching part of the second locking piece (5) is a second matching protrusion (54) arranged on a second locking piece main body (56), and the second matching protrusion (54) and the second locking piece protrusion (52) are positioned on the same side of the rotation center of the second locking piece (5); when the miniature circuit breaker is in a closing state, one end of the first connecting rod (9) inserted on the button main body (11) is in abutting fit with the second matching bulge (54), the second locking piece (5) is limited to rotate, and after the miniature circuit breaker is opened, the first connecting rod (9) is separated from the second matching bulge (54).
13. The miniature circuit breaker of claim 12, wherein: the button mechanism (1) further comprises a connecting rod mounting table (12), the connecting rod mounting table (12) is arranged on the button main body (11), one end of the first connecting rod (9) is inserted on the connecting rod mounting table (12) and protrudes out of one side of the connecting rod mounting table (12) to form a first transmission rod (91), and when the miniature circuit breaker is in a closing state, the first transmission rod (91) is in abutting fit with the second matching protrusion (54).
14. The miniature circuit breaker of claim 2, wherein: the button mechanism (1) is pulled towards the outside of the circuit breaker shell (6), the first connecting rod (9) drives the second locking piece driven arm (55) to enable the second locking piece main body (56) to rotate, the second locking piece main body (56) drives the second locking piece protrusion (52) to move towards the inside of the circuit breaker shell (6), and the second locking piece protrusion (52) is in limit fit with the shell of the circuit breaker assembly position.
15. The miniature circuit breaker of claim 14, wherein: the first connecting rod (9) is a U-shaped rod, one end of the first connecting rod (9) passes through the connecting rod mounting table (12) of the button mechanism (1) and protrudes out of one side of the connecting rod mounting table (12) to form a first transmission rod (91), and the first transmission rod (91) is in driving fit with the second locking piece driven arm (55) of the second locking piece (5); the button mechanism (1) is pulled, the button mechanism (1) drives the second locking piece driven arm (55) through the first transmission rod (91) to enable the second locking piece (5) to rotate, and the second locking piece bulge (52) of the second locking piece (5) is in limit fit with the shell of the circuit breaker assembly position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811621744.XA CN109585233B (en) | 2018-12-28 | 2018-12-28 | Small-sized circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811621744.XA CN109585233B (en) | 2018-12-28 | 2018-12-28 | Small-sized circuit breaker |
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| CN109585233A CN109585233A (en) | 2019-04-05 |
| CN109585233B true CN109585233B (en) | 2024-05-14 |
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Families Citing this family (7)
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|---|---|---|---|---|
| CN110400727A (en) * | 2019-08-01 | 2019-11-01 | 浙江正泰电器股份有限公司 | Breaker |
| CN111477512A (en) | 2019-11-15 | 2020-07-31 | 浙江正泰电器股份有限公司 | Plug-in circuit breaker |
| CN111489937A (en) * | 2019-11-15 | 2020-08-04 | 浙江正泰电器股份有限公司 | Plug-in circuit breaker |
| CN111477508A (en) * | 2020-04-13 | 2020-07-31 | 浙江正泰电器股份有限公司 | Circuit breaker |
| CN111477509A (en) * | 2020-04-13 | 2020-07-31 | 浙江正泰电器股份有限公司 | Circuit breaker |
| CN111968891B (en) * | 2020-08-17 | 2022-11-04 | 浙江思创电力科技股份有限公司 | Locking device and circuit breaker |
| CN113161204B (en) * | 2021-04-07 | 2022-06-28 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Emergency locking device for circuit breaker |
Citations (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88103427A (en) * | 1987-06-09 | 1988-12-28 | 梅兰日兰公司 | A kind of operating mechanism of miniature circuit breaker |
| FR2806520A1 (en) * | 2000-03-17 | 2001-09-21 | Ge Power Controls France | CIRCUIT BREAKER CONTROL DEVICE |
| JP2006086066A (en) * | 2004-09-17 | 2006-03-30 | Mitsubishi Electric Corp | Switching device |
| CN103545150A (en) * | 2013-09-27 | 2014-01-29 | 浙江大华开关厂 | Breaker operating mechanism |
| CN103904577A (en) * | 2013-08-23 | 2014-07-02 | 华荣科技股份有限公司 | Interlocking mechanism and vacuum power distribution unit including same |
| CN103996990A (en) * | 2014-05-29 | 2014-08-20 | 厦门兴厦控电气有限公司 | Novel inflatable switch cabinet |
| CN104733264A (en) * | 2015-03-16 | 2015-06-24 | 温州高能电气有限公司 | Miniature circuit breaker |
| CN105575737A (en) * | 2016-03-15 | 2016-05-11 | 佳一电气有限公司 | Circuit breaker operating mechanism and circuit breaker |
| CN105845521A (en) * | 2016-05-31 | 2016-08-10 | 乐清市也为电气有限公司 | Moving contact operating mechanism of small-size circuit breaker |
| CN205911262U (en) * | 2016-04-29 | 2017-01-25 | 上海良信电器股份有限公司 | Miniature circuit breaker's dropout locking mechanical system's improvement structure |
| CN106449307A (en) * | 2015-08-04 | 2017-02-22 | 浙江正泰电器股份有限公司 | Breaker interlocking device |
| CN106710978A (en) * | 2015-11-12 | 2017-05-24 | 上海良信电器股份有限公司 | Circuit breaker |
| CN106710982A (en) * | 2015-07-16 | 2017-05-24 | 上海良信电器股份有限公司 | Control mechanism for circuit breaker operating mechanism |
| WO2017167086A1 (en) * | 2016-03-30 | 2017-10-05 | 上海电科电器科技有限公司 | Make/break mechanism for electrical switch |
| CN107833799A (en) * | 2017-10-26 | 2018-03-23 | 上海良信电器股份有限公司 | A kind of fixation of plug in circuit breaker and unlocking mechanism |
| CN107833804A (en) * | 2017-10-26 | 2018-03-23 | 上海良信电器股份有限公司 | A kind of locking device of breaker operating device |
| CN107993900A (en) * | 2017-10-26 | 2018-05-04 | 上海良信电器股份有限公司 | A kind of plug-in type miniature circuit breaker |
| CN207320029U (en) * | 2017-10-29 | 2018-05-04 | 默飓电气有限公司 | A kind of circuit breaker operation mechanism |
| CN107993897A (en) * | 2017-12-12 | 2018-05-04 | 上海电科电器科技有限公司 | Earth leakage circuit breaker |
| AU2018100776A4 (en) * | 2017-06-08 | 2018-07-12 | Dalian Ino-Tech Co., Ltd. | A high breaking capacity miniature circuit breaker |
| CN207624637U (en) * | 2017-10-26 | 2018-07-17 | 上海良信电器股份有限公司 | A kind of plug-in type miniature circuit breaker |
| CN108417459A (en) * | 2018-05-03 | 2018-08-17 | 首瑞（天津）电气设备有限公司 | A kind of operating mechanism and breaker of breaker |
| CN207993787U (en) * | 2017-12-23 | 2018-10-19 | 浙江正泰电器股份有限公司 | Compact automatic closing breaker |
| CN109637907A (en) * | 2018-12-28 | 2019-04-16 | 浙江正泰电器股份有限公司 | Miniature circuit breaker |
| CN209487449U (en) * | 2018-12-28 | 2019-10-11 | 浙江正泰电器股份有限公司 | Miniature circuit breaker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012051744A1 (en) * | 2010-10-18 | 2012-04-26 | 湖北盛佳电器设备有限公司 | Miniature breaker having short circuit self-locking function and miniature breaker having position state detecting function |
-
2018
- 2018-12-28 CN CN201811621744.XA patent/CN109585233B/en active Active
Patent Citations (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88103427A (en) * | 1987-06-09 | 1988-12-28 | 梅兰日兰公司 | A kind of operating mechanism of miniature circuit breaker |
| FR2806520A1 (en) * | 2000-03-17 | 2001-09-21 | Ge Power Controls France | CIRCUIT BREAKER CONTROL DEVICE |
| JP2006086066A (en) * | 2004-09-17 | 2006-03-30 | Mitsubishi Electric Corp | Switching device |
| CN103904577A (en) * | 2013-08-23 | 2014-07-02 | 华荣科技股份有限公司 | Interlocking mechanism and vacuum power distribution unit including same |
| CN103545150A (en) * | 2013-09-27 | 2014-01-29 | 浙江大华开关厂 | Breaker operating mechanism |
| CN103996990A (en) * | 2014-05-29 | 2014-08-20 | 厦门兴厦控电气有限公司 | Novel inflatable switch cabinet |
| CN104733264A (en) * | 2015-03-16 | 2015-06-24 | 温州高能电气有限公司 | Miniature circuit breaker |
| CN106710982A (en) * | 2015-07-16 | 2017-05-24 | 上海良信电器股份有限公司 | Control mechanism for circuit breaker operating mechanism |
| CN106449307A (en) * | 2015-08-04 | 2017-02-22 | 浙江正泰电器股份有限公司 | Breaker interlocking device |
| CN106710978A (en) * | 2015-11-12 | 2017-05-24 | 上海良信电器股份有限公司 | Circuit breaker |
| CN105575737A (en) * | 2016-03-15 | 2016-05-11 | 佳一电气有限公司 | Circuit breaker operating mechanism and circuit breaker |
| WO2017167086A1 (en) * | 2016-03-30 | 2017-10-05 | 上海电科电器科技有限公司 | Make/break mechanism for electrical switch |
| CN205911262U (en) * | 2016-04-29 | 2017-01-25 | 上海良信电器股份有限公司 | Miniature circuit breaker's dropout locking mechanical system's improvement structure |
| CN105845521A (en) * | 2016-05-31 | 2016-08-10 | 乐清市也为电气有限公司 | Moving contact operating mechanism of small-size circuit breaker |
| AU2018100776A4 (en) * | 2017-06-08 | 2018-07-12 | Dalian Ino-Tech Co., Ltd. | A high breaking capacity miniature circuit breaker |
| CN107993900A (en) * | 2017-10-26 | 2018-05-04 | 上海良信电器股份有限公司 | A kind of plug-in type miniature circuit breaker |
| CN107833804A (en) * | 2017-10-26 | 2018-03-23 | 上海良信电器股份有限公司 | A kind of locking device of breaker operating device |
| CN107833799A (en) * | 2017-10-26 | 2018-03-23 | 上海良信电器股份有限公司 | A kind of fixation of plug in circuit breaker and unlocking mechanism |
| CN207624637U (en) * | 2017-10-26 | 2018-07-17 | 上海良信电器股份有限公司 | A kind of plug-in type miniature circuit breaker |
| CN207320029U (en) * | 2017-10-29 | 2018-05-04 | 默飓电气有限公司 | A kind of circuit breaker operation mechanism |
| CN107993897A (en) * | 2017-12-12 | 2018-05-04 | 上海电科电器科技有限公司 | Earth leakage circuit breaker |
| CN207993787U (en) * | 2017-12-23 | 2018-10-19 | 浙江正泰电器股份有限公司 | Compact automatic closing breaker |
| CN108417459A (en) * | 2018-05-03 | 2018-08-17 | 首瑞（天津）电气设备有限公司 | A kind of operating mechanism and breaker of breaker |
| CN109637907A (en) * | 2018-12-28 | 2019-04-16 | 浙江正泰电器股份有限公司 | Miniature circuit breaker |
| CN209487449U (en) * | 2018-12-28 | 2019-10-11 | 浙江正泰电器股份有限公司 | Miniature circuit breaker |
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