CN107742599B - Arc extinguishing mechanism of power circuit breaker with gear - Google Patents
Arc extinguishing mechanism of power circuit breaker with gear Download PDFInfo
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- CN107742599B CN107742599B CN201711048655.6A CN201711048655A CN107742599B CN 107742599 B CN107742599 B CN 107742599B CN 201711048655 A CN201711048655 A CN 201711048655A CN 107742599 B CN107742599 B CN 107742599B
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- gear
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
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- 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
- H01H73/18—Means for extinguishing or suppressing arc
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Abstract
The invention belongs to the technical field of electric power circuit breakers, and particularly relates to an arc extinguishing mechanism of an electric power circuit breaker with a gear, which comprises a driving mechanism, a triggering mechanism and a heat absorption mechanism, wherein when an electric arc triggering wrench is pulled to swing towards one side close to an electric arc triggering block by using the circuit breaker designed by the invention; the electric arc trigger wrench can drive the driving shaft to rotate; the rotation of the driving shaft can generate electric arcs between the arc trigger plate and the arc trigger block; the heat transferred to the heat-conducting plate by the arc is then dissipated by the air flow caused by the movement of the heat-conducting plate. When people need to separate the arc trigger wrench from the arc trigger block, the arc trigger wrench is pulled to drive the arc trigger wrench to swing to one side far away from the arc trigger block; the electric arc trigger wrench can drive the driving shaft to rotate; the rotation of the driving shaft can generate electric arcs between the arc trigger plate and the arc trigger block; the heat transferred to the heat-conducting plate by the arc is then dissipated by the air flow caused by the movement of the heat-conducting plate.
Description
Technical Field
The invention belongs to the technical field of power circuit breakers, and particularly relates to an arc extinguishing mechanism of a power circuit breaker with a gear.
Background
The power circuit breaker is a switch which plays a role in protecting short circuit, overload and electric leakage of a circuit in electric power, and can play a role in cutting off the circuit when the short circuit, the overload and the electric leakage of the circuit occur, high-temperature and high-heat electric arcs can be generated between a movable contact and a fixed contact in the process of switching on or switching off the circuit, if the electric arcs can not be rapidly led out and extinguished, a contact point between the two contacts can be ablated, and the shell of the power circuit breaker is greatly damaged, more importantly, the electric arcs can delay the circuit disconnection, and irreparable loss is caused.
A circuit breaker used in a circuit of a large load has a case where an arc generated when the circuit breaker is opened in use is larger than an arc generated when the circuit breaker is closed; therefore, it is necessary to design a special arc extinguishing mechanism to extinguish the arc generated by the opening of the circuit breaker switch.
The invention designs an arc extinguishing mechanism of a power circuit breaker with a gear to solve the problems.
Disclosure of Invention
In order to solve the defects in the prior art, the invention discloses an arc extinguishing mechanism of a power circuit breaker with a gear, which is realized by adopting the following technical scheme.
The utility model provides an arc extinguishing mechanism of power circuit breaker with gear which characterized in that: the heat absorption device comprises a driving mechanism, a triggering mechanism and a heat absorption mechanism, wherein the driving mechanism and the triggering mechanism are respectively arranged on the outer side of the heat absorption mechanism, and the driving mechanism, the triggering mechanism and the heat absorption mechanism are mutually matched.
The heat absorption mechanism comprises an air draft shell, an installation shell, a heat conduction plate, a return spring, a first arc-shaped guide groove, a second arc-shaped guide groove, a heat conduction plate installation groove, an air hole, a circular air outlet pipe, an arc-shaped guide groove, a first trapezoidal guide rail, a second trapezoidal guide rail and a guide block, wherein the installation shell is divided into a semicircular end and a square end; the inner side of the mounting shell is provided with a heat conducting plate mounting groove; two arc guide grooves are symmetrically arranged on two side surfaces of the heat conducting plate mounting groove; the two arc-shaped guide grooves are respectively matched with the arc-shaped heat conduction installation grooves; a first arc-shaped guide groove and a second arc-shaped guide groove are respectively formed in two side faces of the upper semicircular end of the mounting shell; the first arc-shaped guide groove and the second arc-shaped guide groove are respectively matched with the two arc-shaped guide grooves; a plurality of uniformly distributed air holes are symmetrically formed on two end faces of the square end on the mounting shell; four guide blocks are symmetrically arranged on two sides of the heat conducting plate, and two guide blocks positioned on the same side are mutually symmetrical; the heat conducting plates are respectively and uniformly arranged in the mounting shell through the matching of the four guide blocks arranged on the heat conducting plates and the two arc-shaped guide grooves on the mounting shell, and the heat conducting plates in the mounting shell are mutually symmetrical up and down in the mounting shell; two return springs are symmetrically arranged between two adjacent heat-conducting plates in the heat-conducting plates positioned on the same side in the mounting shell; the heat conducting plate positioned in the mounting shell is matched with the first arc-shaped guide groove and the second arc-shaped guide groove; the first trapezoidal guide rail and the second trapezoidal guide rail are respectively arranged on two side surfaces of the mounting shell, the first trapezoidal guide rail is matched with the second arc-shaped guide groove, and the second trapezoidal guide rail is matched with the first arc-shaped guide groove; the air draft shell is divided into a semicircular end and a square end; the air draft shell is arranged on the outer side surface of the installation shell, a semicircular end on the air draft shell is matched with a semicircular end on the installation shell, and a square end on the air draft shell is matched with a square end on the installation shell; the inner side of the air draft shell is communicated with the air holes on the two sides of the mounting shell; the circular air outlet pipe is arranged on one side of the upper semicircular end of the air draft shell; the circular air outlet pipe is communicated with the inner side of the air draft shell.
The trigger mechanism comprises an arc guide shell, an arc guide groove, a wrench installation groove, a support lug, a trigger block installation groove, an arc trigger wrench, an arc trigger block, a driving shaft, arc side plates, an arc bottom plate, a top plate, a trigger installation block and a second gear, wherein the arc guide shell consists of two arc side plates, an arc bottom plate, a top plate and a trigger installation block, and the two arc side plates are symmetrical to each other; the arc-shaped bottom plate is arranged at the lower sides of the two arc-shaped side plates; the top plate is arranged on the upper sides of the two arc-shaped side plates; the trigger mounting block is provided with a trigger block mounting groove; the trigger mounting block is mounted at the top ends of the two arc-shaped side plates and the arc-shaped bottom plate; the two arc-shaped side plates, the arc-shaped bottom plate and the top plate form an arc guide groove; a spanner mounting groove is formed in the top plate; the two support lugs are symmetrically arranged on the upper side of the top plate; the arc guide shell is arranged on one side of the square end of the mounting shell; the driving shaft is arranged on the two support lugs; the arc trigger wrench is arranged on the driving shaft and is positioned in the wrench mounting groove; the arc trigger block is arranged in the trigger block mounting groove; the arc trigger block is matched with the arc trigger wrench; the arc trigger block, the arc trigger wrench and the arc guide groove are matched; the second gear is mounted on one end of the drive shaft.
The driving mechanism comprises a third gear, a fourth gear, a fifth gear, a sixth gear, a seventh gear, an eighth rotating shaft, a fourth support, an eighth gear, a ninth gear, a first ring gear, a second ring gear, a tenth gear, an annular guide groove, a ninth rotating shaft, a tenth rotating shaft, an eleventh rotating shaft and a twelfth rotating shaft, wherein the third rotating shaft is a rotating shaft of the ninth gear, and is arranged on the end surface of one side of the mounting shell; the third gear is arranged on the third rotating shaft and is meshed with the second gear; a section of tooth is arranged on the outer circular surface of the ninth gear; the ninth gear is arranged on the third rotating shaft; the tenth rotating shaft is arranged on the end face of one side of the mounting shell, which is provided with the third rotating shaft; the eighth gear is arranged on the tenth rotating shaft; the eighth gear is matched with the ninth gear; the second ring gear is provided with an annular guide groove; the second ring gear is arranged on the end face of the mounting shell on one side of the third rotating shaft through the matching of the annular guide groove and the second trapezoidal guide rail; the inner teeth on the second ring gear are meshed with the eighth gear; the ninth rotating shaft is arranged on the air draft shell and is positioned on the same side of the mounting shell as the third rotating shaft; the fourth gear is arranged on the ninth rotating shaft; the fourth gear is meshed with external teeth on the second ring gear; the eighth rotating shaft is arranged on the air draft shell through a fourth support; the fifth gear is arranged at one end of the eighth rotating shaft; the fifth gear is meshed with the fourth gear; the sixth gear is arranged at one end of the eighth rotating shaft; the eleventh rotating shaft is arranged on the air draft shell, and the eleventh rotating shaft and the sixth gear are positioned on the same side of the installation shell; the tenth gear is arranged on the eleventh rotating shaft; the tenth gear is meshed with the sixth gear; the twelfth rotating shaft is arranged on the mounting shell, and the twelfth rotating shaft and the sixth gear are positioned on the same side of the mounting shell; the seventh gear is arranged on the twelfth rotating shaft; the seventh gear is meshed with the tenth gear; the first ring gear is provided with an annular guide groove; the first ring gear is arranged on the end face of the mounting shell at one side of the mounting shell, which is provided with the sixth gear, through the matching of the annular guide groove and the first trapezoidal guide rail; the external teeth on the second ring gear mesh with the seventh gear.
The heat-conducting plates which are positioned on the inner side of the mounting shell in the initial state are symmetrical up and down in the mounting shell, the two heat-conducting plates which are contacted with each other in the heat-conducting plate mounting grooves are connected with the first ring gear and the second ring gear through the two connecting blocks respectively, and the two connecting blocks penetrate through the first arc-shaped guide groove and the second arc-shaped guide groove in the mounting shell respectively.
As a further improvement of the present technology, after the ninth gear rotates 300 degrees, the teeth on the ninth gear completely disengage from the eighth gear.
As a further improvement of the present technology, after the ninth gear rotates by 300 degrees, the heat conducting plates located at the upper and lower sides in the mounting shell are respectively moved into the heat conducting plate mounting grooves at one side of the upper square end of the mounting shell under the driving of the first ring gear and the second ring gear.
As a further improvement of the present technology, the diameter value of the fifth gear is equal to the diameter value of the sixth gear.
As a further improvement of the present technology, a fifth support for stabilizing the driving shaft is mounted at one end of the driving shaft where the second gear is mounted.
As a further improvement of the present technology, when the arc trigger wrench drives the ninth gear to rotate by 300 degrees, an arc is generated between the arc trigger wrench and the arc trigger block.
As a further improvement of the present technique, when the arc trigger wrench is rotated to contact the arc trigger block; the ninth gear rotates exactly 360 degrees.
Compared with the traditional power circuit breaker technology, the movement of the heat conducting plate can lead out the high-temperature and high-heat electric arc generated between the arc trigger wrench and the arc trigger block during the closing or closing process of the circuit quickly.
In the invention, four guide blocks are symmetrically arranged on two sides of the heat conducting plate; the heat conducting plates are respectively and uniformly arranged in the mounting shell through the matching of the four guide blocks arranged on the heat conducting plates and the two arc-shaped guide grooves on the mounting shell; two return springs are symmetrically arranged between two adjacent heat-conducting plates in the heat-conducting plates positioned on the same side in the mounting shell; the heat conducting plate positioned in the mounting shell is matched with the first arc-shaped guide groove and the second arc-shaped guide groove; the first trapezoidal guide rail and the second trapezoidal guide rail are respectively arranged on two side surfaces of the mounting shell, the first trapezoidal guide rail is matched with the second arc-shaped guide groove, and the second trapezoidal guide rail is matched with the first arc-shaped guide groove; the air draft shell is arranged on the outer side surface of the installation shell; the inner side of the air draft shell is communicated with the air holes on the two sides of the mounting shell; the circular air outlet pipe is arranged on one side of the upper semicircular end of the air draft shell; the circular air outlet pipe is communicated with the inner side of the air draft shell; the arc guide shell consists of two arc side plates, an arc bottom plate, a top plate and a trigger mounting block, wherein the two arc side plates are symmetrical to each other; the arc-shaped bottom plate is arranged at the lower sides of the two arc-shaped side plates; the top plate is arranged on the upper sides of the two arc-shaped side plates; the trigger mounting block is provided with a trigger block mounting groove; the trigger mounting block is mounted at the top ends of the two arc-shaped side plates and the arc-shaped bottom plate; the two arc-shaped side plates, the arc-shaped bottom plate and the top plate form an arc guide groove; a spanner mounting groove is formed in the top plate; the two support lugs are symmetrically arranged on the upper side of the top plate; the arc guide shell is arranged on one side of the square end of the installation shell; the driving shaft is arranged on the two support lugs; the arc trigger wrench is arranged on the driving shaft and is positioned in the wrench mounting groove; the arc trigger block is arranged in the trigger block mounting groove; the arc trigger block is matched with the arc trigger wrench; the arc trigger block, the arc trigger wrench and the arc guide groove are matched; the second gear is arranged at one end of the driving shaft; the third rotating shaft is arranged on the mounting shell; the third gear is arranged on the third rotating shaft; the third gear is meshed with the second gear; a section of tooth is arranged on the outer circular surface of the ninth gear; the ninth gear is arranged on the third rotating shaft; the tenth rotating shaft is arranged on the end face of one side of the mounting shell, which is provided with the third rotating shaft; the eighth gear is arranged on the tenth rotating shaft; the eighth gear is matched with the ninth gear; the second ring gear is provided with an annular guide groove; the second ring gear is arranged on the end face of the mounting shell on one side of the third rotating shaft through the matching of the annular guide groove and the second trapezoidal guide rail; the inner teeth on the second ring gear are meshed with the eighth gear; the ninth rotating shaft is arranged on the air draft shell and is positioned on the same side of the mounting shell as the third rotating shaft; the fourth gear is arranged on the ninth rotating shaft; the fourth gear is meshed with external teeth on the second ring gear; the eighth rotating shaft is arranged on the air draft shell through a fourth support; the fifth gear is arranged at one end of the eighth rotating shaft; the fifth gear is meshed with the fourth gear; the sixth gear is arranged at one end of the eighth rotating shaft; the eleventh rotating shaft is arranged on the air draft shell, and the eleventh rotating shaft and the sixth gear are positioned on the same side of the installation shell; the tenth gear is arranged on the eleventh rotating shaft; the tenth gear is meshed with the sixth gear; the twelfth rotating shaft is arranged on the mounting shell, and the twelfth rotating shaft and the sixth gear are positioned on the same side of the mounting shell; the seventh gear is arranged on the twelfth rotating shaft; the seventh gear is meshed with the tenth gear; the first ring gear is provided with an annular guide groove; the first ring gear is arranged on the end face of the mounting shell at one side of the mounting shell, which is provided with the sixth gear, through the matching of the annular guide groove and the first trapezoidal guide rail; the external teeth on the second ring gear are meshed with the seventh gear; the heat-conducting plates which are positioned on the inner side of the mounting shell in the initial state are mutually symmetrical up and down in the mounting shell, the two heat-conducting plates which are contacted with each other in the heat-conducting plate mounting grooves are respectively connected with the first ring gear and the second ring gear through two connecting blocks, and the two connecting blocks respectively penetrate through the first arc-shaped guide groove and the second arc-shaped guide groove in the mounting shell. In the invention, after the ninth gear rotates 300 degrees, the teeth on the ninth gear are completely separated from the eighth gear. After the ninth gear rotates by 300 degrees, the heat-conducting plates on the upper side and the lower side in the mounting shell respectively move into the heat-conducting plate mounting grooves on one side of the upper square end of the mounting shell under the driving of the first ring gear and the second ring gear. The diameter value of the fifth gear is equal to that of the sixth gear in the invention. And a fifth support which plays a role in stabilizing the driving shaft is arranged at one end of the driving shaft, which is provided with the second gear. When people use the circuit breaker designed by the invention, when the arc trigger wrench is pulled to swing to one side close to the arc trigger block; the electric arc trigger wrench can drive the driving shaft to rotate; the driving shaft rotates to drive the second gear to rotate; the second gear rotates to drive the third gear to rotate; the third gear rotates to drive the third rotating shaft to rotate; the third rotating shaft rotates to drive the ninth gear to rotate; the ninth gear rotates to drive the eighth gear to rotate; the eighth gear rotates to drive the first ring gear to rotate; the first ring gear rotates to drive the fourth gear to rotate; the fourth gear rotates to drive the fifth gear to rotate; the fifth gear rotates to drive the eighth rotating shaft to rotate; the eighth rotating shaft rotates to drive the sixth gear to rotate; the sixth gear rotates to drive the tenth gear to rotate; the tenth gear rotates to drive the seventh gear to rotate; the seventh gear rotates to drive the second ring gear to rotate; the first ring gear and the second ring gear rotate to respectively drive the heat conduction plates at the upper end and the lower end of the inner side of the mounting shell to rotate around the axes of the first ring gear and the second ring gear through the connecting blocks; because the air draft shell is communicated with the outside, pressure difference can be generated between the air draft shell and the installation shell; when the arc trigger wrench drives the ninth gear to rotate by 300 degrees, an arc is generated between the arc trigger wrench and the arc trigger block; when the ninth gear rotates 350 degrees, an electric arc is generated between the arc trigger plate and the arc trigger block; the electric arc generated between the arc trigger plate and the arc trigger block moves into the heat-conducting plate mounting groove through the electric arc guide groove; after the ninth gear rotates by 300 degrees, the heat-conducting plates on the upper side and the lower side in the mounting shell respectively move into the heat-conducting plate mounting grooves on one side of the upper square end of the mounting shell under the driving of the first ring gear and the second ring gear. Therefore, electric arcs generated between the electric arc trigger plates and the electric arc trigger blocks can move to the heat-conducting plates positioned on the upper side and the lower side in the heat-conducting plate mounting grooves through the electric arc guide grooves under the action of negative pressure on the inner side of the air draft shell, and then heat on the electric arcs is transferred to the corresponding heat-conducting plates; because the teeth on the ninth gear are completely disengaged from the eighth gear after the ninth gear rotates 300 degrees. Therefore, when the ninth gear rotates by 300 degrees, the ninth gear is disengaged from the eighth gear; at this time, the eighth gear loses the driving force; that is, the first ring gear and the second ring gear lose the driving force; therefore, under the action of the return spring arranged between the adjacent heat-conducting plates, the first ring gear and the second ring gear rotate to the original state; the first ring gear and the second ring gear rotate to drive the heat conducting plate of the mounting shell to gradually return to the original position; the heat on the heat-conducting plate is dissipated by the air flow brought by the heat-conducting plate moving. When the arc trigger wrench rotates to be in contact with the arc trigger block; the ninth gear rotates exactly 360 degrees; therefore, when the arc trigger wrench rotates to be in contact with the arc trigger block, the ninth gear rotates to the original position again; the diameter value of the fifth gear is equal to that of the sixth gear; the function of the heat conduction plate driving device is to ensure that the heat conduction plates positioned at the upper side and the lower side of the inner side of the installation shell move at the same speed in the process that the first ring gear and the second ring gear drive the corresponding heat conduction plates to move.
When people use the circuit breaker designed by the invention, when the arc trigger wrench is pulled to swing to one side close to the arc trigger block; the electric arc trigger wrench can drive the driving shaft to rotate; the driving shaft rotates to drive the second gear to rotate; the second gear rotates to drive the third gear to rotate; the third gear rotates to drive the third rotating shaft to rotate; the third rotating shaft rotates to drive the ninth gear to rotate; the ninth gear rotates to drive the eighth gear to rotate; the eighth gear rotates to drive the first ring gear to rotate; the first ring gear rotates to drive the fourth gear to rotate; the fourth gear rotates to drive the fifth gear to rotate; the fifth gear rotates to drive the eighth rotating shaft to rotate; the eighth rotating shaft rotates to drive the sixth gear to rotate; the sixth gear rotates to drive the tenth gear to rotate; the tenth gear rotates to drive the seventh gear to rotate; the seventh gear rotates to drive the second ring gear to rotate; the first ring gear and the second ring gear rotate to respectively drive the heat conduction plates at the upper end and the lower end of the inner side of the mounting shell to rotate around the axes of the first ring gear and the second ring gear through the connecting blocks; because the air draft shell is communicated with the outside, pressure difference can be generated between the air draft shell and the installation shell; when the arc trigger wrench drives the ninth gear to rotate by 300 degrees, an arc is generated between the arc trigger wrench and the arc trigger block; when the ninth gear rotates 350 degrees, an electric arc is generated between the arc trigger plate and the arc trigger block; the electric arc generated between the arc trigger plate and the arc trigger block moves into the heat-conducting plate mounting groove through the electric arc guide groove; after the ninth gear rotates by 300 degrees, the heat-conducting plates on the upper side and the lower side in the mounting shell respectively move into the heat-conducting plate mounting grooves on one side of the upper square end of the mounting shell under the driving of the first ring gear and the second ring gear. Therefore, electric arcs generated between the electric arc trigger plates and the electric arc trigger blocks can move to the heat-conducting plates positioned on the upper side and the lower side in the heat-conducting plate mounting grooves through the electric arc guide grooves under the action of negative pressure on the inner side of the air draft shell, and then heat on the electric arcs is transferred to the corresponding heat-conducting plates; because the teeth on the ninth gear are completely disengaged from the eighth gear after the ninth gear rotates 300 degrees. Therefore, when the ninth gear rotates by 300 degrees, the ninth gear is disengaged from the eighth gear; at this time, the eighth gear loses the driving force; that is, the first ring gear and the second ring gear lose the driving force; therefore, under the action of the return spring arranged between the adjacent heat-conducting plates, the first ring gear and the second ring gear rotate to the original state; the first ring gear and the second ring gear rotate to drive the heat conducting plate of the mounting shell to gradually return to the original position; the heat on the heat-conducting plate is dissipated by the air flow brought by the heat-conducting plate moving. When the arc trigger wrench rotates to be in contact with the arc trigger block; the ninth gear rotates exactly 360 degrees; therefore, when the arc trigger wrench is rotated to be in contact with the arc trigger block, the ninth gear is rotated to the original position.
Drawings
Fig. 1 is an external view of an entire part.
Fig. 2 is a schematic view of the overall component distribution.
Fig. 3 is a schematic view of the internal distribution of the integral unit.
Fig. 4 is a schematic view of the second gear and the third gear in cooperation.
FIG. 5 is a first ring gear installation schematic.
Fig. 6 is a ninth gear mounting schematic.
FIG. 7 is a second ring gear installation schematic.
FIG. 8 is a schematic view of the draft housing construction.
Fig. 9 is a schematic view of the sixth gear and the tenth gear in cooperation.
FIG. 10 is a schematic view of a second ring gear configuration.
Fig. 11 is a schematic view of the thermal plate mounting.
Fig. 12 is a schematic diagram of heat-conducting plate distribution.
Figure 13 is a schematic view of an arc striking wrench configuration.
Figure 14 is a schematic view of an arc guide shell construction.
Fig. 15 is a schematic view of the structure of the mounting case.
Fig. 16 is a schematic view of a first trapezoidal rail installation.
Fig. 17 is a second trapezoidal rail installation schematic.
Fig. 18 is a schematic diagram of a heat-conducting plate structure.
Fig. 19 is a schematic view of the first trapezoidal shaped guide rail and the second arcuate shaped guide groove in cooperation.
Figure 20 is a schematic view of a connection block installation.
Fig. 21 is a schematic view of the working principle of the heat-conducting plate.
Fig. 22 is a schematic view of a ninth gear structure.
Number designation in the figures: 3. an air draft shell; 4. mounting a shell; 5. an arc trigger wrench; 6. an arc triggering block; 7. a second gear; 9. a fourth gear; 10. a fifth gear; 11. a sixth gear; 12. a seventh gear; 13. an arc guide shell; 14. a third gear; 16. a drive shaft; 24. a third rotating shaft; 48. an eighth rotating shaft; 49. a fourth support; 50. an eighth gear; 51. a ninth gear; 53. a first ring gear; 54. a second ring gear; 55. a tenth gear; 56. an annular guide groove; 57. a heat conducting plate; 58. a return spring; 59. an arc chute; 60. a wrench mounting groove; 61. supporting a lug; 62. a trigger block mounting groove; 63. a first arc-shaped guide groove; 64. a second arc-shaped guide groove; 65. a heat conducting plate mounting groove; 66. a wind hole; 67. an arc-shaped guide groove; 68. a first trapezoidal guide rail; 69. a second trapezoidal guide rail; 70. a guide block; 71. a ninth rotating shaft; 72. a tenth rotating shaft; 73. a circular air outlet pipe; 74. an eleventh rotating shaft; 75. a twelfth rotating shaft; 76. a fifth support; 77. a drive mechanism; 78. a trigger mechanism; 80. a heat absorbing mechanism; 81. an arc-shaped side plate; 82. an arc-shaped bottom plate; 83. a top plate; 84. triggering the installation block; 85. and (4) connecting the blocks.
Detailed Description
As shown in fig. 1 and 3, it includes a driving mechanism 77, a triggering mechanism 78, and a heat absorbing mechanism 80, wherein as shown in fig. 2, the driving mechanism 77 and the triggering mechanism 78 are respectively installed outside the heat absorbing mechanism 80, and the driving mechanism 77, the triggering mechanism 78, and the heat absorbing mechanism 80 are mutually matched.
As shown in fig. 5, the heat absorbing mechanism 80 includes the air draft housing 3, the mounting housing 4, the heat conducting plate 57, the return spring 58, the first arc-shaped guide groove 63, the second arc-shaped guide groove 64, the heat conducting plate mounting groove 65, the air hole 66, the ring air outlet pipe 73, the arc-shaped guide groove 67, the first trapezoidal guide rail 68, the second trapezoidal guide rail 69, and the guide block 70, wherein the mounting housing 4 is divided into a semicircular end and a square end as shown in fig. 15; the inner side of the mounting shell 4 is provided with a heat conducting plate mounting groove 65; two arc guide grooves 67 are symmetrically arranged on two side surfaces of the heat conducting plate mounting groove 65; the two arc-shaped guide grooves 67 are respectively matched with the arc-shaped heat conduction installation grooves; a first arc-shaped guide groove 63 and a second arc-shaped guide groove 64 are respectively formed in two side faces of the upper semicircular end of the mounting shell 4; the first arc-shaped guide groove 63 and the second arc-shaped guide groove 64 are respectively matched with the two arc-shaped guide grooves 67; a plurality of uniformly distributed air holes 66 are symmetrically formed on two end faces of the square end on the mounting shell 4; as shown in fig. 18, four guide blocks 70 are symmetrically installed on both sides of the heat conducting plate 57, and two guide blocks 70 located on the same side are symmetrical to each other; as shown in fig. 12 and 19, the plurality of heat-conducting plates 57 are uniformly mounted in the mounting case 4 by the cooperation of the four guide blocks 70 mounted thereon and the two arc-shaped guide grooves 67 on the mounting case 4, respectively, and the heat-conducting plates 57 in the mounting case 4 are vertically symmetrical to each other in the mounting case 4; as shown in fig. 11, two return springs 58 are symmetrically installed between adjacent two of the heat-conducting plates 57 located on the same side in the mounting case 4; the heat-conducting plate 57 located inside the mounting case 4 is fitted with the first arc-shaped guide groove 63 and the second arc-shaped guide groove 64; as shown in fig. 16 and 17, a first trapezoidal guide rail 68 and a second trapezoidal guide rail 69 are respectively installed on both side surfaces of the installation case 4, and as shown in fig. 17, the first trapezoidal guide rail is engaged with the second arc-shaped guide groove 64, and as shown in fig. 16, the second trapezoidal guide rail is engaged with the first arc-shaped guide groove 63; as shown in fig. 8, the suction case 3 is divided into a semicircular end and a square end; the air draft shell 3 is arranged on the outer side surface of the installation shell 4, the semicircular end on the air draft shell 3 is matched with the semicircular end on the installation shell 4, and the square end on the air draft shell 3 is matched with the square end on the installation shell 4; the inner side of the air draft shell 3 is communicated with the air holes 66 on the two sides of the mounting shell 4; the circular air outlet pipe 73 is arranged on one side of the upper semicircular end of the air draft shell 3; the circular air outlet pipe 73 is communicated with the inner side of the air draft shell 3.
As shown in fig. 5, the trigger mechanism 78 includes an arc guide housing 13, an arc guide groove 59, a wrench mounting groove 60, a support lug 61, a trigger block mounting groove 62, an arc trigger wrench 5, an arc trigger block 6, a drive shaft 16, an arc side plate 81, an arc bottom plate 82, a top plate 83, a trigger mounting block 84, and a second gear 7, wherein as shown in fig. 14, the arc guide housing 13 is composed of two arc side plates 81, an arc bottom plate 82, a top plate 83, and a trigger mounting block 84, and the two arc side plates 81 are symmetrical to each other; the arc-shaped bottom plate 82 is arranged at the lower sides of the two arc-shaped side plates 81; the top plate 83 is arranged on the upper sides of the two arc-shaped side plates 81; the trigger mounting block 84 is provided with a trigger mounting groove 62; the trigger mounting block 84 is mounted at the top ends of the two arc-shaped side plates 81 and the arc-shaped bottom plate 82; the two arc-shaped side plates 81, the arc-shaped bottom plate 82 and the top plate 83 form an arc guide groove 59; the top plate 83 is provided with a wrench mounting groove 60; two lugs 61 are symmetrically mounted on the upper side of the top plate 83; the arc guide shell 13 is arranged on one side of the square end of the mounting shell 4; as shown in fig. 3, the drive shaft 16 is mounted on two lugs 61; the arc striking wrench 5 is installed on the driving shaft 16, and the arc striking wrench 5 is located in the wrench installation groove 60; the arc trigger block 6 is arranged in the trigger block mounting groove 62; as shown in fig. 13, the arc striking block 6 is engaged with the arc striking wrench 5; the arc trigger block 6, the arc trigger wrench 5 and the arc guide groove 59 are matched; as shown in fig. 4, the second gear 7 is mounted on one end of the drive shaft 16.
As shown in fig. 3, the driving mechanism 77 includes a third gear 14, a fourth gear 9, a fifth gear 10, a sixth gear 11, a seventh gear 12, a third rotating shaft 24, an eighth rotating shaft 48, a fourth support 49, an eighth gear 50, a ninth gear 51, a first ring gear 53, a second ring gear 54, a tenth gear 55, an annular guide groove 56, a ninth rotating shaft 71, a tenth rotating shaft 72, an eleventh rotating shaft 74 and a twelfth rotating shaft 75, wherein the third rotating shaft 24 is mounted on the end surface of the mounting case 4 on one side as shown in fig. 7; the third gear 14 is mounted on the third rotating shaft 24; the third gear 14 is meshed with the second gear 7; as shown in fig. 22, the ninth gear 51 has a section of teeth on the outer circumferential surface; the ninth gear 51 is mounted on the third rotating shaft 24; as shown in fig. 9, the tenth rotating shaft 72 is mounted on the end surface of the mounting case 4 on the side where the third rotating shaft 24 is mounted; the eighth gear 50 is mounted on the tenth rotating shaft 72; eighth gear 50 cooperates with ninth gear 51; as shown in fig. 10, the second ring gear 54 has an annular guide groove 56 thereon; the second ring gear 54 is mounted on the end surface of the mounting shell 4 on the side where the third rotating shaft 24 is mounted through the matching of the annular guide groove 56 and the second trapezoidal guide rail 69; as shown in FIG. 6, the internal teeth on the second ring gear 54 mesh with the eighth gear 50; the ninth rotating shaft 71 is installed on the air draft housing 3 and is located on the same side of the installation housing 4 as the third rotating shaft 24; the fourth gear 9 is mounted on the ninth rotating shaft 71; the fourth gear 9 meshes with external teeth on the second ring gear 54; the eighth rotating shaft 48 is mounted on the air draft housing 3 through a fourth support; the fifth gear 10 is installed at one end of the eighth rotating shaft 48; the fifth gear 10 meshes with the fourth gear 9; the sixth gear 11 is mounted on one end of the eighth rotating shaft 48; the eleventh rotating shaft 74 is installed on the air draft housing 3, and the eleventh rotating shaft 74 and the sixth gear 11 are located on the same side of the installation housing 4; the tenth gear 55 is mounted on the eleventh rotating shaft 74; the tenth gear 55 meshes with the sixth gear 11; the twelfth rotating shaft 75 is installed on the installation shell 4, and the twelfth rotating shaft 75 and the sixth gear 11 are located on the same side of the installation shell 4; the seventh gear 12 is mounted on the twelfth rotating shaft 75; the seventh gear 12 meshes with the tenth gear 55; the first ring gear 53 has an annular guide groove 56 thereon; the first ring gear 53 is mounted on the end surface of the mounting shell 4 on the side where the sixth gear 11 is mounted through the matching of the annular guide groove 56 and the first trapezoidal guide rail 68; the external teeth on the second ring gear 54 mesh with the seventh gear 12.
As shown in fig. 12, the above-mentioned heat conduction plates 57 located inside the mounting case 4 in the initial state are symmetrical to each other up and down in the mounting case 4, as shown in fig. 20, and the two heat conduction plates 57 contacting each other in the heat conduction plate mounting groove 65 are connected to the first ring gear 53 and the second ring gear 54 through two connection blocks 85, respectively, and the two connection blocks 85 pass through the first arc-shaped guide groove 63 and the second arc-shaped guide groove 64 on the mounting case 4, respectively.
When the ninth gear 51 rotates 300 degrees, the teeth of the ninth gear 51 are completely disengaged from the eighth gear 50.
When the ninth gear 51 rotates 300 degrees, the heat-conducting plates 57 located at the upper and lower sides in the mounting case 4 are respectively moved into the heat-conducting plate mounting grooves 65 at one side of the upper square end of the mounting case 4 by the first ring gear 53 and the second ring gear 54.
The diameter of the fifth gear 10 is equal to the diameter of the sixth gear 11.
The end of the drive shaft 16 to which the second gear 7 is attached is provided with a fifth support 76 for stabilizing the drive shaft 16.
When the arc trigger wrench 5 drives the ninth gear 51 to rotate by 300 degrees, an arc is generated between the arc trigger wrench and the arc trigger block 6.
When the arc trigger wrench is rotated to be in contact with the arc trigger block 6; the ninth gear 51 rotates exactly 360 degrees.
In summary, the following steps:
in the present invention, the movement of the heat conductive plate 57 can rapidly lead out an arc having a high temperature and a high heat generated between the arc striking wrench 5 and the arc striking block 6 during the closing or closing of the circuit.
In the invention, four guide blocks 70 are symmetrically arranged on two sides of the heat conducting plate 57; the heat-conducting plates 57 are uniformly mounted in the mounting shell 4 through the cooperation of the four guide blocks 70 mounted thereon and the two arc-shaped guide grooves 67 on the mounting shell 4, respectively; two return springs 58 are symmetrically arranged between two adjacent heat-conducting plates 57 in the heat-conducting plates 57 positioned on the same side in the mounting shell 4; the heat-conducting plate 57 located inside the mounting case 4 is fitted with the first arc-shaped guide groove 63 and the second arc-shaped guide groove 64; a first trapezoidal guide rail 68 and a second trapezoidal guide rail 69 are respectively arranged on two side surfaces of the mounting shell 4, the first trapezoidal guide rail is matched with the second arc-shaped guide groove 64, and the second trapezoidal guide rail is matched with the first arc-shaped guide groove 63; the air draft shell 3 is arranged on the outer side surface of the mounting shell 4; the inner side of the air draft shell 3 is communicated with the air holes 66 on the two sides of the mounting shell 4; the circular air outlet pipe 73 is arranged on one side of the upper semicircular end of the air draft shell 3; the circular air outlet pipe 73 is communicated with the inner side of the air draft shell 3; the arc guide shell 13 is composed of two arc-shaped side plates 81, an arc-shaped bottom plate 82, a top plate 83 and a trigger mounting block 84, wherein the two arc-shaped side plates 81 are symmetrical to each other; the arc-shaped bottom plate 82 is arranged at the lower sides of the two arc-shaped side plates 81; the top plate 83 is arranged on the upper sides of the two arc-shaped side plates 81; the trigger mounting block 84 is provided with a trigger mounting groove 62; the trigger mounting block 84 is mounted at the top ends of the two arc-shaped side plates 81 and the arc-shaped bottom plate 82; the two arc-shaped side plates 81, the arc-shaped bottom plate 82 and the top plate 83 form an arc guide groove 59; the top plate 83 is provided with a wrench mounting groove 60; two lugs 61 are symmetrically mounted on the upper side of the top plate 83; the arc guide shell 13 is arranged on one side of the square end of the mounting shell 4; the drive shaft 16 is mounted on two lugs 61; the arc striking wrench 5 is installed on the driving shaft 16, and the arc striking wrench 5 is located in the wrench installation groove 60; the arc trigger block 6 is arranged in the trigger block mounting groove 62; the arc trigger block 6 is matched with the arc trigger wrench 5; the arc trigger block 6, the arc trigger wrench 5 and the arc guide groove 59 are matched; the second gear 7 is mounted on one end of the drive shaft 16; the third rotating shaft 24 is installed on the end surface of one side of the installation shell 4; the third gear 14 is mounted on the third rotating shaft 24; the third gear 14 cooperates with the second gear 7; the outer circular surface of the ninth gear 51 is provided with a section of teeth; the ninth gear 51 is mounted on the third rotating shaft 24; the tenth rotating shaft 72 is installed on the end surface of the installation shell 4 on the side where the third rotating shaft 24 is installed; the eighth gear 50 is mounted on the tenth rotating shaft 72; eighth gear 50 cooperates with ninth gear 51; the second ring gear 54 has an annular guide groove 56 thereon; the second ring gear 54 is mounted on the end surface of the mounting shell 4 on the side where the third rotating shaft 24 is mounted through the matching of the annular guide groove 56 and the second trapezoidal guide rail 69; the internal teeth on the second ring gear 54 mesh with the eighth gear 50; the ninth rotating shaft 71 is installed on the air draft housing 3 and is located on the same side of the installation housing 4 as the third rotating shaft 24; the fourth gear 9 is mounted on the ninth rotating shaft 71; the fourth gear 9 meshes with external teeth on the second ring gear 54; the eighth rotating shaft 48 is mounted on the air draft housing 3 through a fourth support; the fifth gear 10 is installed at one end of the eighth rotating shaft 48; the fifth gear 10 meshes with the fourth gear 9; the sixth gear 11 is mounted on one end of the eighth rotating shaft 48; the eleventh rotating shaft 74 is installed on the air draft housing 3, and the eleventh rotating shaft 74 and the sixth gear 11 are located on the same side of the installation housing 4; the tenth gear 55 is mounted on the eleventh rotating shaft 74; the tenth gear 55 meshes with the sixth gear 11; the twelfth rotating shaft 75 is installed on the installation shell 4, and the twelfth rotating shaft 75 and the sixth gear 11 are located on the same side of the installation shell 4; the seventh gear 12 is mounted on the twelfth rotating shaft 75; the seventh gear 12 meshes with the tenth gear 55; the first ring gear 53 has an annular guide groove 56 thereon; the first ring gear 53 is mounted on the end surface of the mounting shell 4 on the side where the sixth gear 11 is mounted through the matching of the annular guide groove 56 and the first trapezoidal guide rail 68; the external teeth on the second ring gear 54 mesh with the seventh gear 12; the heat conduction plates 57 located inside the mounting case 4 in the initial state are vertically symmetrical to each other in the mounting case 4, and the two heat conduction plates 57 contacting each other in the heat conduction plate mounting groove 65 are connected to the first ring gear 53 and the second ring gear 54 through two connection blocks 85, respectively, and the two connection blocks 85 pass through the first arc guide groove 63 and the second arc guide groove 64 on the mounting case 4, respectively. In the present invention, after the ninth gear 51 rotates 300 degrees, the teeth of the ninth gear 51 are completely disengaged from the eighth gear 50. When the ninth gear 51 rotates 300 degrees, the heat-conducting plates 57 located at the upper and lower sides in the mounting case 4 are respectively moved into the heat-conducting plate mounting grooves 65 at one side of the upper square end of the mounting case 4 by the first ring gear 53 and the second ring gear 54. The diameter of the fifth gear 10 is equal to the diameter of the sixth gear 11 in the present invention. The end of the drive shaft 16 to which the second gear 7 is attached is provided with a fifth support 76 for stabilizing the drive shaft 16. When people use the circuit breaker designed by the invention, when the arc trigger wrench 5 is pulled to swing to one side close to the arc trigger block 6; the arc trigger wrench 5 drives the driving shaft 16 to rotate; the driving shaft 16 rotates to drive the second gear 7 to rotate; the second gear 7 rotates to drive the third gear 14 to rotate; the third gear 14 rotates to drive the third rotating shaft 24 to rotate; the third rotating shaft 24 rotates to drive the ninth gear 51 to rotate; the ninth gear 51 rotates to drive the eighth gear 50 to rotate; the eighth gear 50 rotates to drive the first ring gear 53 to rotate; the first ring gear 53 rotates to drive the fourth gear 9 to rotate; the fourth gear 9 rotates to drive the fifth gear 10 to rotate; the fifth gear 10 rotates to drive the eighth rotating shaft 48 to rotate; the eighth rotating shaft 48 rotates to drive the sixth gear 11 to rotate; the sixth gear 11 rotates to drive the tenth gear 55 to rotate; the tenth gear 55 rotates to drive the seventh gear 12 to rotate; the seventh gear 12 rotates to drive the second ring gear 54 to rotate; as shown in fig. 21a, the first ring gear 53 and the second ring gear 54 rotate to drive the heat conducting plates 57 located at the upper and lower ends inside the mounting case 4 to rotate around the axes of the first ring gear 53 and the second ring gear 54 through the connecting blocks 85, respectively; when the arc trigger wrench 5 drives the ninth gear 51 to rotate by 300 degrees, an arc is generated between the arc trigger wrench and the arc trigger block 6; when the ninth gear 51 rotates by 350 degrees, an arc is generated between the arc striking plate and the arc striking block 6; the arc generated between the arc striking plate and the arc striking block 6 moves into the heat-conducting plate installation groove 65 through the arc guide groove 59; as shown in fig. 21b, since the heat-conducting plates 57 located at the upper and lower sides in the mounting case 4 are moved into the heat-conducting plate mounting grooves 65 at one side of the upper square end of the mounting case 4 by the first ring gear 53 and the second ring gear 54, respectively, after the ninth gear 51 is rotated by 300 degrees. Therefore, at this time, an electric arc is generated between the arc trigger plate and the arc trigger block 6, and under the action of negative pressure inside the air draft shell 3, the electric arc moves to the heat conducting plates 57 positioned on the upper and lower sides in the heat conducting plate mounting groove 65 through the electric arc guide groove 59, and then the heat on the electric arc is transferred to the corresponding heat conducting plates 57; since the teeth of the ninth gear 51 are completely disengaged from the eighth gear 50 after the ninth gear 51 rotates 300 degrees. Therefore, when the ninth gear 51 rotates 300 degrees, the ninth gear 51 is disengaged from the eighth gear 50; at this time, the eighth gear 50 loses its driving force; that is, the first ring gear 53 and the second ring gear 54 lose the driving force; the first ring gear 53 and the second ring gear 54 are rotated in the original state by the return spring installed between the adjacent heat-transfer plates 57; as shown in fig. 21c, the first ring gear 53 and the second ring gear 54 rotate to bring the heat conducting plate 57 of the mounting case 4 to gradually return to the original positions; the flow of air by the movement of the heat conductive plate 57 dissipates heat from the heat conductive plate 57. When the arc trigger wrench is rotated to be in contact with the arc trigger block 6; the ninth gear 51 rotates exactly 360 degrees; so that when the arc striking wrench is rotated to contact the arc striking block 6, the ninth gear 51 is rotated to the original position. The diameter value of the fifth gear 10 is equal to that of the sixth gear 11; the function of the heat conduction plate is to ensure that the heat conduction plates 57 on the upper and lower sides of the inner side of the mounting case 4 move at the same speed when the first ring gear 53 and the second ring gear 54 drive the corresponding heat conduction plates 57 to move.
The specific implementation mode is as follows: when people use the circuit breaker designed by the invention, when the arc trigger wrench 5 is pulled to swing to one side close to the arc trigger block 6; the arc trigger wrench 5 drives the driving shaft 16 to rotate; the driving shaft 16 rotates to drive the second gear 7 to rotate; the second gear 7 rotates to drive the third gear 14 to rotate; the third gear 14 rotates to drive the third rotating shaft 24 to rotate; the third rotating shaft 24 rotates to drive the ninth gear 51 to rotate; the ninth gear 51 rotates to drive the eighth gear 50 to rotate; the eighth gear 50 rotates to drive the first ring gear 53 to rotate; the first ring gear 53 rotates to drive the fourth gear 9 to rotate; the fourth gear 9 rotates to drive the fifth gear 10 to rotate; the fifth gear 10 rotates to drive the eighth rotating shaft 48 to rotate; the eighth rotating shaft 48 rotates to drive the sixth gear 11 to rotate; the sixth gear 11 rotates to drive the tenth gear 55 to rotate; the tenth gear 55 rotates to drive the seventh gear 12 to rotate; the seventh gear 12 rotates to drive the second ring gear 54 to rotate; the first ring gear 53 and the second ring gear 54 rotate to respectively drive the heat conduction plates 57 positioned at the upper end and the lower end of the inner side of the installation shell 4 to rotate around the axes of the first ring gear 53 and the second ring gear 54 through the connecting blocks 85; when the arc trigger wrench 5 drives the ninth gear 51 to rotate by 300 degrees, an arc is generated between the arc trigger wrench and the arc trigger block 6; when the ninth gear 51 rotates by 350 degrees, an arc is generated between the arc striking plate and the arc striking block 6; the arc generated between the arc striking plate and the arc striking block 6 moves into the heat-conducting plate installation groove 65 through the arc guide groove 59; since the heat conduction plates 57 located at the upper and lower sides in the mounting case 4 are moved into the heat conduction plate mounting grooves 65 at the upper square end side of the mounting case 4 by the first ring gear 53 and the second ring gear 54, respectively, after the ninth gear 51 is rotated by 300 degrees. Therefore, at this time, an electric arc is generated between the arc trigger plate and the arc trigger block 6, and under the action of negative pressure inside the air draft shell 3, the electric arc moves to the heat conducting plates 57 positioned on the upper and lower sides in the heat conducting plate mounting groove 65 through the electric arc guide groove 59, and then the heat on the electric arc is transferred to the corresponding heat conducting plates 57; since the teeth of the ninth gear 51 are completely disengaged from the eighth gear 50 after the ninth gear 51 rotates 300 degrees. Therefore, when the ninth gear 51 rotates 300 degrees, the ninth gear 51 is disengaged from the eighth gear 50; at this time, the eighth gear 50 loses its driving force; that is, the first ring gear 53 and the second ring gear 54 lose the driving force; the first ring gear 53 and the second ring gear 54 are rotated in the original state by the return spring installed between the adjacent heat-transfer plates 57; the first ring gear 53 and the second ring gear 54 rotate to drive the heat conducting plate 57 of the mounting shell 4 to gradually return to the original position; the flow of air by the movement of the heat conductive plate 57 dissipates heat from the heat conductive plate 57. When the arc trigger wrench is rotated to be in contact with the arc trigger block 6; the ninth gear 51 rotates exactly 360 degrees; so that when the arc striking wrench is rotated to contact the arc striking block 6, the ninth gear 51 is rotated to the original position.
Claims (4)
1. The utility model provides an arc extinguishing mechanism of power circuit breaker with gear which characterized in that: the device comprises a driving mechanism, a triggering mechanism and a heat absorption mechanism, wherein the driving mechanism and the triggering mechanism are respectively arranged at the outer side of the heat absorption mechanism, and the driving mechanism, the triggering mechanism and the heat absorption mechanism are mutually matched;
the heat absorption mechanism comprises an air draft shell, an installation shell, a heat conduction plate, a return spring, a first arc-shaped guide groove, a second arc-shaped guide groove, a heat conduction plate installation groove, an air hole, a circular air outlet pipe, an arc-shaped guide groove, a first trapezoidal guide rail, a second trapezoidal guide rail and a guide block, wherein the installation shell is divided into a semicircular end and a square end; the inner side of the mounting shell is provided with a heat conducting plate mounting groove; two arc guide grooves are symmetrically arranged on two side surfaces of the heat conducting plate mounting groove; the two arc-shaped guide grooves are respectively matched with the arc-shaped heat conduction installation grooves; a first arc-shaped guide groove and a second arc-shaped guide groove are respectively formed in two side faces of the upper semicircular end of the mounting shell; the first arc-shaped guide groove and the second arc-shaped guide groove are respectively matched with the two arc-shaped guide grooves; a plurality of uniformly distributed air holes are symmetrically formed on two end faces of the square end on the mounting shell; four guide blocks are symmetrically arranged on two sides of the heat conducting plate, and two guide blocks positioned on the same side are mutually symmetrical; the heat conducting plates are respectively and uniformly arranged in the mounting shell through the matching of the four guide blocks arranged on the heat conducting plates and the two arc-shaped guide grooves on the mounting shell, and the heat conducting plates in the mounting shell are mutually symmetrical up and down in the mounting shell; two return springs are symmetrically arranged between two adjacent heat-conducting plates in the heat-conducting plates positioned on the same side in the mounting shell; the heat conducting plate positioned in the mounting shell is matched with the first arc-shaped guide groove and the second arc-shaped guide groove; the first trapezoidal guide rail and the second trapezoidal guide rail are respectively arranged on two side surfaces of the mounting shell, the first trapezoidal guide rail is matched with the second arc-shaped guide groove, and the second trapezoidal guide rail is matched with the first arc-shaped guide groove; the air draft shell is divided into a semicircular end and a square end; the air draft shell is arranged on the outer side surface of the installation shell, a semicircular end on the air draft shell is matched with a semicircular end on the installation shell, and a square end on the air draft shell is matched with a square end on the installation shell; the inner side of the air draft shell is communicated with the air holes on the two sides of the mounting shell; the circular air outlet pipe is arranged on one side of the upper semicircular end of the air draft shell; the circular air outlet pipe is communicated with the inner side of the air draft shell;
the trigger mechanism comprises an arc guide shell, an arc guide groove, a wrench installation groove, a support lug, a trigger block installation groove, an arc trigger wrench, an arc trigger block, a driving shaft, arc side plates, an arc bottom plate, a top plate, a trigger installation block and a second gear, wherein the arc guide shell consists of two arc side plates, an arc bottom plate, a top plate and a trigger installation block, and the two arc side plates are symmetrical to each other; the arc-shaped bottom plate is arranged at the lower sides of the two arc-shaped side plates; the top plate is arranged on the upper sides of the two arc-shaped side plates; the trigger mounting block is provided with a trigger block mounting groove; the trigger mounting block is mounted at the top ends of the two arc-shaped side plates and the arc-shaped bottom plate; the two arc-shaped side plates, the arc-shaped bottom plate and the top plate form an arc guide groove; a spanner mounting groove is formed in the top plate; the two support lugs are symmetrically arranged on the upper side of the top plate; the arc guide shell is arranged on one side of the square end of the mounting shell; the driving shaft is arranged on the two support lugs; the arc trigger wrench is arranged on the driving shaft and is positioned in the wrench mounting groove; the arc trigger block is arranged in the trigger block mounting groove; the arc trigger block is matched with the arc trigger wrench; the arc trigger block, the arc trigger wrench and the arc guide groove are matched; the second gear is arranged at one end of the driving shaft;
the driving mechanism comprises a third gear, a fourth gear, a fifth gear, a sixth gear, a seventh gear, an eighth rotating shaft, a fourth support, an eighth gear, a ninth gear, a first ring gear, a second ring gear, a tenth gear, an annular guide groove, a ninth rotating shaft, a tenth rotating shaft, an eleventh rotating shaft and a twelfth rotating shaft, the third rotating shaft is a rotating shaft of the ninth gear, and the third rotating shaft is arranged on the end face of one side of the mounting shell; the third gear is arranged on the third rotating shaft and is meshed with the second gear; a section of tooth is arranged on the outer circular surface of the ninth gear; the ninth gear is arranged on the third rotating shaft; the tenth rotating shaft is arranged on the end face of one side of the mounting shell, which is provided with the third rotating shaft; the eighth gear is arranged on the tenth rotating shaft; the eighth gear is matched with the ninth gear; the second ring gear is provided with an annular guide groove; the second ring gear is arranged on the end face of the mounting shell on one side of the third rotating shaft through the matching of the annular guide groove and the second trapezoidal guide rail; the inner teeth on the second ring gear are meshed with the eighth gear; the ninth rotating shaft is arranged on the air draft shell and is positioned on the same side of the mounting shell as the third rotating shaft; the fourth gear is arranged on the ninth rotating shaft; the fourth gear is meshed with external teeth on the second ring gear; the eighth rotating shaft is arranged on the air draft shell through a fourth support; the fifth gear is arranged at one end of the eighth rotating shaft; the fifth gear is meshed with the fourth gear; the sixth gear is arranged at one end of the eighth rotating shaft; the eleventh rotating shaft is arranged on the air draft shell, and the eleventh rotating shaft and the sixth gear are positioned on the same side of the installation shell; the tenth gear is arranged on the eleventh rotating shaft; the tenth gear is meshed with the sixth gear; the twelfth rotating shaft is arranged on the mounting shell, and the twelfth rotating shaft and the sixth gear are positioned on the same side of the mounting shell; the seventh gear is arranged on the twelfth rotating shaft; the seventh gear is meshed with the tenth gear; the first ring gear is provided with an annular guide groove; the first ring gear is arranged on the end face of the mounting shell at one side of the mounting shell, which is provided with the sixth gear, through the matching of the annular guide groove and the first trapezoidal guide rail; the external teeth on the second ring gear are meshed with the seventh gear;
the heat-conducting plates positioned on the inner side of the mounting shell in the initial state are mutually symmetrical up and down in the mounting shell, the two heat-conducting plates which are mutually contacted in the heat-conducting plate mounting grooves are respectively connected with the first ring gear and the second ring gear through two connecting blocks, and the two connecting blocks respectively penetrate through the first arc-shaped guide groove and the second arc-shaped guide groove on the mounting shell;
when the arc trigger wrench drives the ninth gear to rotate by 300 degrees, an arc is generated between the arc trigger wrench and the arc trigger block;
when the arc trigger wrench rotates to be in contact with the arc trigger block; the ninth gear rotates exactly 360 degrees.
2. An arc extinguishing mechanism of a power circuit breaker with a gear according to claim 1, characterized in that: after the ninth gear rotates 300 degrees, teeth on the ninth gear are completely separated from the eighth gear.
3. An arc extinguishing mechanism of a power circuit breaker with a gear according to claim 1, characterized in that: the diameter value of the fifth gear is equal to the diameter value of the sixth gear.
4. An arc extinguishing mechanism of a power circuit breaker with a gear according to claim 1, or claim 2, or claim 3, characterized in that: and a fifth support which plays a role in stabilizing the driving shaft is arranged at one end of the driving shaft, which is provided with the second gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711048655.6A CN107742599B (en) | 2017-11-01 | 2017-11-01 | Arc extinguishing mechanism of power circuit breaker with gear |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711048655.6A CN107742599B (en) | 2017-11-01 | 2017-11-01 | Arc extinguishing mechanism of power circuit breaker with gear |
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| Publication Number | Publication Date |
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| CN107742599A CN107742599A (en) | 2018-02-27 |
| CN107742599B true CN107742599B (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711048655.6A Active CN107742599B (en) | 2017-11-01 | 2017-11-01 | Arc extinguishing mechanism of power circuit breaker with gear |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107731595B (en) * | 2017-11-01 | 2019-07-23 | 广州紫研电气科技有限公司 | A kind of arc-extinguishing mechanism of the power circuit breaker based on gear |
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| CN2385425Y (en) * | 1999-08-09 | 2000-06-28 | 李广宇 | Vacuum arc-extinguishing chamber mechanism |
| EP1313117A3 (en) * | 2001-11-16 | 2005-02-16 | ABB PATENT GmbH | Arc quenching device for an electronic switch device |
| CN1719562A (en) * | 2004-07-08 | 2006-01-11 | Abb瑞士有限公司 | Arc extinguishing device for circuit breaker |
| CN106531585A (en) * | 2016-11-30 | 2017-03-22 | 金平娣 | Rotary arc extinguishing mechanism of power circuit breaker |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2385425Y (en) * | 1999-08-09 | 2000-06-28 | 李广宇 | Vacuum arc-extinguishing chamber mechanism |
| EP1313117A3 (en) * | 2001-11-16 | 2005-02-16 | ABB PATENT GmbH | Arc quenching device for an electronic switch device |
| CN1719562A (en) * | 2004-07-08 | 2006-01-11 | Abb瑞士有限公司 | Arc extinguishing device for circuit breaker |
| CN106531585A (en) * | 2016-11-30 | 2017-03-22 | 金平娣 | Rotary arc extinguishing mechanism of power circuit breaker |
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| Publication number | Publication date |
|---|---|
| CN107742599A (en) | 2018-02-27 |
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Effective date of registration: 20200304 Address after: 441300 Suizhou power supply company, State Grid Power Co., Ltd., No. 41, Yingbin Avenue, Suizhou City, Hubei Province Applicant after: Suizhou Power Co., Ltd. Hubei Power Co., Ltd. Address before: 215555 Two-2 Middle Light Textile Road, Xinzhuang Town, Changshu City, Jiangsu Province Applicant before: SUZHOU ZHUANCHUANG PHOTOELECTRIC TECHNOLOGY Co.,Ltd. |
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Inventor after: Ling Weikang Inventor after: Lv Bo Inventor after: Wu Zhongping Inventor after: Peng Peibo Inventor after: Feng Bo Inventor after: Liu Tianci Inventor before: Ling Weikang |
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