WO2019085361A1

WO2019085361A1 - Arc extinguishing mechanism of power circuit breaker based on gears

Info

Publication number: WO2019085361A1
Application number: PCT/CN2018/078107
Authority: WO
Inventors: 凌卫康
Original assignee: 苏州专创光电科技有限公司
Priority date: 2017-11-01
Filing date: 2018-03-06
Publication date: 2019-05-09
Also published as: CN107731595B; CN107731595A; CN110419089A; CN110419089B

Abstract

An arc extinguishing mechanism of a power circuit breaker based on gears, comprising a drive mechanism (77), a trigger mechanism (78), and a heat absorbing mechanism (80); when the circuit breaker is in use, an arc trigger wrench (5) is pulled to swing towards one side of an arc trigger block (6), the arc trigger wrench (5) driving the rotation of a drive shaft (16), and the drive shaft (16) rotating such that an arc is produced between the arc trigger wrench (5) and the arc trigger block (6), and heat transferred from the arc onto a heat conducting plate (57) is dissipated by the airflow from the movement of the heat conducting plate (57); when the arc trigger wrench (5) and the arc trigger block (6) need to be separated, the arc trigger wrench (5) is pulled to swing away from one side of the arc trigger block (6), the arc trigger wrench (5) driving the rotation of a drive shaft (16), and the drive shaft (16) rotating such that an arc is produced between the arc trigger wrench (5) and the arc trigger block (6), and heat transferred from the arc onto a heat conducting plate (57) is dissipated by the airflow from the movement of the heat conducting plate (57); thus, the high temperature arc produced between the arc trigger wrench (5) and the arc trigger block (6) when the circuit is open or closed can be rapidly dissipated.

Description

Arc extinguishing mechanism of gear-based power circuit breaker

Technical field

The invention belongs to the technical field of power circuit breakers, and in particular relates to an arc extinguishing mechanism of a gear-based power circuit breaker.

Background technique

The power circuit breaker is a switch that protects the circuit from short circuit, overload, and leakage in power. It can cut off the circuit when the circuit is short-circuited, overloaded, and leaked. The circuit is in the process of turning on or off. A high-temperature and high-heat arc is generated between the moving contact and the static contact. If the arc cannot be quickly led out and extinguished, the contact point between the two contacts will be ablated and the housing of the power circuit breaker will be caused. The big damage, and more importantly, the arc will cause the circuit to break off and cause irreparable damage.

technical problem

The circuit breaker used in the circuit with large load has the following situation: the arc generated by the opening of the circuit breaker is larger than the arc generated when the circuit breaker is turned on; therefore, the special arc extinguishing mechanism is designed to open the circuit switch. Arcing is very necessary to extinguish the arc.

The present invention designs an arc extinguishing mechanism of a gear-based power circuit breaker to solve the above problems.

Technical solution

In order to solve the above-mentioned drawbacks in the prior art, the present invention discloses an arc extinguishing mechanism of a gear-based power circuit breaker, which is implemented by the following technical solutions.

The arc extinguishing mechanism of the gear-based power circuit breaker is characterized in that it comprises a driving mechanism, a triggering mechanism and a heat absorbing mechanism, wherein the driving mechanism and the triggering mechanism are respectively installed on the outer side of the heat absorbing mechanism, and the driving mechanism and the triggering mechanism And the heat absorption mechanism cooperates with each other.

The heat absorbing mechanism comprises a draft casing, a mounting shell, a heat conducting plate, a return spring, a first curved guiding groove, a second curved guiding groove, a heat conducting plate mounting groove, a wind hole, a ring outlet pipe, a guiding groove, and a first a trapezoidal guide rail, a second trapezoidal guide rail, and a guide block, wherein the mounting shell is divided into a semicircular end and a square end; a heat conducting plate mounting groove is formed on the inner side of the mounting shell; and two arc guides are symmetrically opened on both sides of the heat conducting board mounting groove a groove; the two arcuate guide grooves respectively cooperate with the arc-shaped heat-conducting mounting groove; the first curved guide groove and the second curved guide groove are respectively formed on both sides of the semi-circular end of the mounting shell; the first curved guide groove and the first The two arc-shaped guiding grooves are respectively matched with the two guiding grooves; the two end faces of the square end of the mounting shell are symmetrically opened with a plurality of evenly distributed wind holes; the two sides of the heat conducting plate are symmetrically mounted with four guiding blocks, and are located on the same side The two guide blocks are symmetrical to each other; the plurality of heat conducting plates are uniformly installed in the mounting shell through the cooperation of the four guiding blocks mounted thereon and the two guiding grooves on the mounting shell, and the heat conducting plate located in the mounting shell is The inside and outside of the mounting case are symmetrical to each other; Two return springs are symmetrically mounted between two adjacent heat conducting plates on the same side of the heat conducting plate; the heat conducting plate located in the mounting shell cooperates with the first curved guiding groove and the second curved guiding groove; a trapezoidal guide rail and a second trapezoidal guide rail are respectively mounted on both sides of the mounting shell, and the first curved guide rail cooperates with the second curved guide groove and the second curved guide rail cooperates with the first curved guide groove; the exhaust shell Divided into a semi-circular end and a square end; the exhaust shell is mounted on the outer side of the mounting shell, and the semicircular end on the draft shell cooperates with the semicircular end on the mounting shell, and the square end on the draft shell cooperates with the square end on the mounting shell; The inner side of the shell communicates with the wind holes on both sides of the installation shell; the annular outlet duct is installed on one side of the semicircular end of the draft casing; the annular outlet duct communicates with the inner side of the draft casing.

The trigger mechanism includes an arc guiding shell, an arc guiding groove, a wrench mounting groove, a lug, a trigger block mounting groove, an arc trigger wrench, an arc trigger block, a driving shaft, a curved side plate, a curved bottom plate, a top plate, a trigger mounting block, a second gear, wherein the arc guiding shell is composed of two curved side plates, a curved bottom plate, a top plate and a trigger mounting block, the two curved side plates are symmetrical to each other; the curved bottom plate is mounted on the lower side of the two curved side plates; The top plate is mounted on the sides of the two curved side plates; the trigger mounting block is provided with a trigger block mounting groove; the trigger mounting block is mounted on the top of the two curved side plates and the curved bottom plate; two curved side plates, curved The bottom plate and the top plate form an arc guiding groove; the top plate is provided with a wrench mounting groove; the two ears are symmetrically mounted on the upper side of the top plate; the arc guiding shell is mounted on the square end side of the mounting shell; the driving shaft is mounted on the two branches The arc trigger wrench is mounted on the drive shaft, and the arc trigger wrench is located in the wrench mounting slot; the arc trigger block is installed in the trigger block mounting slot; the arc trigger block is matched with the arc trigger wrench; the arc trigger block and the electric arc Trigger mating wrench and arc guide groove; and a second gear mounted to one end of the drive shaft.

The driving mechanism includes a third gear, a fourth gear, a fifth gear, a sixth gear, a seventh gear, an eighth 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 mounted on an end surface of the mounting shell side; the third gear is mounted on the electric rotating shaft, The third gear meshes with the second gear; the ninth gear has a section of teeth on the outer circumference; the ninth gear is mounted on the third shaft; and the tenth shaft is mounted on the end surface of the mounting shell on the side of the third shaft; The eighth gear is mounted on the tenth rotating shaft; the eighth gear is matched with the ninth gear; the second ring gear has an annular guide groove; and the second ring gear is mounted on the mounting shell by the cooperation of the annular guide groove and the second trapezoidal guide rail There is an end surface on one side of the third rotating shaft; the internal teeth on the second ring gear mesh with the eighth gear; the ninth rotating shaft is mounted on the draft casing and is located on the same side of the mounting shell as the third rotating shaft; the fourth gear is mounted on the first gear Nine turns The fourth gear meshes with the external teeth on the second ring gear; the eighth shaft is mounted on the draft casing through the ninth support; the fifth gear is mounted on one end of the eighth shaft; the fifth gear meshes with the fourth gear; The six gears are mounted on one end of the eighth rotating shaft; the eleventh rotating shaft is mounted on the draft casing, and the eleventh rotating shaft and the sixth gear are located on the same side of the mounting shell; the tenth gear is mounted on the eleventh rotating shaft; the tenth gear Engaging with the sixth gear; the twelfth rotating shaft is mounted on the mounting shell, and the twelfth rotating shaft and the sixth gear are on the same side of the mounting shell; the seventh gear is mounted on the twelfth rotating shaft; the seventh gear and the tenth gear Engaging; the first ring gear has an annular guide groove; the first ring gear is mounted on the end surface of the mounting shell on the side of the sixth gear by the cooperation of the annular guide groove and the first trapezoidal guide rail; The teeth mesh with the seventh gear.

The heat conducting plates located inside the mounting case in the initial state are symmetrically symmetrical in the mounting case, and the two heat conducting plates contacting each other in the heat conducting plate mounting groove respectively pass through the two connecting blocks and the first ring gear and the second ring gear Connected, and the two connecting blocks respectively pass through the first curved guiding groove and the second curved guiding groove on the mounting shell.

As a further improvement of the present technology, after the ninth gear is rotated by 300 degrees, the teeth on the ninth gear are completely disengaged from the eighth gear.

As a further improvement of the present technology, after the ninth gear rotates 300 degrees, the heat conducting plates located on the upper and lower sides of the mounting case are respectively moved to the square end side of the mounting shell by the first ring gear and the second ring gear. The heat conducting plate is installed inside the slot.

As a further improvement of the present technology, the diameter value of the fifth gear is equal to the diameter of the sixth gear.

As a further improvement of the present technology, one end of the above-mentioned drive shaft on which the second gear is mounted is mounted with a fifth support that stabilizes the drive shaft.

As a further improvement of the present technology, when the arc triggering wrench drives the ninth gear to rotate 300 degrees, an arc is generated between the arc triggering plate and the arc triggering block.

As a further improvement of the present technology, the above-described ninth gear rotates exactly 360 degrees when the arc trigger wrench is rotated into contact with the arc trigger block.

In the present invention, four conductive blocks are symmetrically mounted on both sides of the heat conducting plate; the plurality of heat conducting plates are uniformly mounted in the mounting shell by the cooperation of the four guiding blocks mounted thereon and the two guiding grooves on the mounting shell; Two return springs are symmetrically mounted between two adjacent heat conducting plates in the heat conducting plate on the same side of the mounting shell; the heat conducting plate located in the mounting shell and the first curved guiding groove and the second curved guiding a slotted fit; the first trapezoidal guide rail and the second trapezoidal guide rail are respectively mounted on both sides of the mounting shell, and the first curved guide rail cooperates with the second curved guide groove, and the second curved guide rail cooperates with the first curved guide groove The exhaust casing is installed on the outer side surface of the installation shell; the inner side of the exhaust casing communicates with the wind holes on both sides of the installation shell; the annular outlet duct is installed on one side of the semicircular end of the draft casing; the annular outlet duct and the inner side of the draft casing The arc guiding shell is composed of two curved side plates, a curved bottom plate, a top plate and a trigger mounting block, the two curved side plates are symmetrical to each other; the curved bottom plate is mounted on the lower side of the two curved side plates; the top plate is installed at Two curved side plate sides; trigger mounting block a trigger block mounting groove is provided; the trigger mounting block is mounted on the tops of the two curved side plates and the curved bottom plate; the two curved side plates, the curved bottom plate and the top plate form an arc guide groove; the top plate is provided with a wrench mounting groove Two symmetrical bases are mounted on the upper side of the top plate; the arc guide shell is mounted on one side of the square end of the mounting shell; the drive shaft is mounted on the two lugs; the arc trigger wrench is mounted on the drive shaft and the arc trigger wrench is located The wrench is installed in the slot; the arc trigger block is installed 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 at one end of the drive shaft; The rotating shaft is mounted on the mounting shell; the third gear is mounted on the third rotating shaft; the third gear meshes with the second gear; the ninth gear has a section of teeth on the outer circumference; the ninth gear is mounted on the third shaft; The ten-axis is mounted on the end surface of the mounting shell on the side of the third rotating shaft; the eighth gear is mounted on the tenth rotating shaft; the eighth gear is matched with the ninth gear; and the second ring gear has a ring a guide groove; the second ring gear is mounted on the end surface of the mounting shell on the side of the third rotating shaft through the cooperation of the annular guide groove and the second trapezoidal guide rail; the internal teeth on the second ring gear mesh with the eighth gear; The rotating shaft is mounted on the draft casing and is located on the same side of the mounting shell as the third rotating shaft; the fourth gear is mounted on the ninth rotating shaft; the fourth gear meshes with the external teeth on the second ring gear; and the eighth rotating shaft is installed through the ninth support The fifth gear is mounted on one end of the eighth rotating shaft; the fifth gear is meshed with the fourth gear; the sixth gear is mounted on one end of the eighth rotating shaft; the eleventh rotating shaft is mounted on the exhaust casing, and the eleventh The rotating shaft and the sixth gear are located on the same side of the mounting shell; the tenth gear is mounted on the eleventh rotating shaft; the tenth gear meshes with the sixth gear; the twelfth rotating shaft is mounted on the mounting shell, and the twelfth rotating shaft and the sixth rotating shaft The gear is located on the same side of the mounting shell; the seventh gear is mounted on the twelfth shaft; the seventh gear meshes with the tenth gear; the first ring gear has an annular guide groove; the first ring gear passes through the annular guide groove and the first trapezoid The matching of the guide rail is mounted on the end surface of the mounting shell on the side of the sixth gear; the external teeth on the second ring gear mesh with the seventh gear; in the initial state, the heat conducting plate located inside the mounting shell is up and down in the mounting shell Two heat conducting plates which are symmetrical and in contact with each other in the heat conducting plate mounting groove are respectively connected to the first ring gear and the second ring gear through two connecting blocks, and the two connecting blocks respectively pass through the first curved shape on the mounting shell a guiding groove and a second curved guiding groove. In the present invention, after the ninth gear is rotated by 300 degrees, the teeth on the ninth gear are completely disengaged from the eighth gear. After the ninth gear rotates 300 degrees, the heat conducting plates located on the upper and lower sides of the mounting case are respectively moved by the first ring gear and the second ring gear to the heat conducting plate mounting grooves on the square end side of the mounting shell. In the present invention, the diameter value of the fifth gear is equal to the diameter value of the sixth gear. One end of the drive shaft on which the second gear is mounted is mounted with a fifth support that stabilizes the drive shaft. The circuit breaker designed by the invention uses the arc trigger wrench to swing toward the side of the arc trigger block; the arc trigger wrench drives the drive shaft to rotate; the drive shaft rotates to drive the second gear to rotate; the second gear rotates to drive the third The gear rotates; the third gear rotates to drive the third shaft to rotate; the third 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 rotates; the fourth gear rotates to drive the fifth gear to rotate; the fifth gear rotates to drive the eighth shaft to rotate; the eighth shaft rotates to drive the sixth gear to rotate; the sixth gear rotates to drive the tenth gear to rotate; and the tenth gear rotates to drive The seventh gear rotates; the seventh gear rotates to drive the second ring gear to rotate; the first ring gear and the second ring gear rotate respectively through the connecting block to drive the heat conducting plate at the upper and lower ends of the inner side of the mounting shell around the first ring gear and the second ring The axis of the gear rotates; because the draft casing communicates with the outside world, the exhaust casing and the mounting shell A pressure difference is generated; when the arc triggers the ninth gear to rotate 300 degrees, an arc is generated between the arc trigger and the arc trigger block; therefore, when the ninth gear rotates 350 degrees, the arc triggers and the arc trigger block An arc is generated; an arc generated between the arc triggering plate and the arc triggering block is moved into the heat conducting plate mounting groove through the arc guiding groove; since the heat conducting plate on the upper and lower sides of the mounting case is in the first position after the ninth gear is rotated by 300 degrees A ring gear and a second ring gear are respectively driven to move into the heat-conducting plate mounting groove on the square end side of the mounting shell. Therefore, under this action, the arc between the arc triggering plate and the arc triggering block is under the negative pressure inside the drafting shell, and the arc guiding groove moves to the heat conducting plate located on the upper and lower sides of the heat conducting plate mounting groove, and then the arc is arced. The heat on the heat is transmitted to the corresponding heat conducting plate; since the tooth on the ninth gear is completely disengaged from the eighth gear after the ninth gear is rotated by 300 degrees. Therefore, when the ninth gear rotates 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; Under the action of the return spring between the heat conducting plates, the first ring gear and the second ring gear will 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 state. In position; the air flow caused by the movement of the heat conducting plate dissipates heat from the heat conducting plate. Since the ninth gear rotates exactly 360 degrees when the arc triggers the hand to rotate into contact with the arc trigger block; when the arc triggers the hand to rotate into contact with the arc trigger block, the ninth gear rotates to the original position again. The diameter value of the fifth gear in the present invention is equal to the diameter value of the sixth gear; the function is to ensure that the first ring gear and the second ring gear are located on the upper and lower sides of the inner side of the mounting shell during the movement of the corresponding heat conducting plate. The heat transfer plate moves at the same speed.

The circuit breaker designed by the invention uses the arc trigger wrench to swing toward the side of the arc trigger block; the arc trigger wrench drives the drive shaft to rotate; the drive shaft rotates to drive the second gear to rotate; the second gear rotates to drive the third The gear rotates; the third gear rotates to drive the third shaft to rotate; the third 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 rotates; the fourth gear rotates to drive the fifth gear to rotate; the fifth gear rotates to drive the eighth shaft to rotate; the eighth shaft rotates to drive the sixth gear to rotate; the sixth gear rotates to drive the tenth gear to rotate; and the tenth gear rotates to drive The seventh gear rotates; the seventh gear rotates to drive the second ring gear to rotate; the first ring gear and the second ring gear rotate respectively through the connecting block to drive the heat conducting plate at the upper and lower ends of the inner side of the mounting shell around the first ring gear and the second ring The axis of the gear rotates; because the draft casing communicates with the outside world, the exhaust casing and the mounting shell A pressure difference is generated; when the arc triggers the ninth gear to rotate 300 degrees, an arc is generated between the arc trigger and the arc trigger block; therefore, when the ninth gear rotates 350 degrees, the arc triggers and the arc trigger block An arc is generated; an arc generated between the arc triggering plate and the arc triggering block is moved into the heat conducting plate mounting groove through the arc guiding groove; since the heat conducting plate on the upper and lower sides of the mounting case is in the first position after the ninth gear is rotated by 300 degrees A ring gear and a second ring gear are respectively driven to move into the heat-conducting plate mounting groove on the square end side of the mounting shell. Therefore, under this action, the arc between the arc triggering plate and the arc triggering block is under the negative pressure inside the drafting shell, and the arc guiding groove moves to the heat conducting plate located on the upper and lower sides of the heat conducting plate mounting groove, and then the arc is arced. The heat on the heat is transmitted to the corresponding heat conducting plate; since the tooth on the ninth gear is completely disengaged from the eighth gear after the ninth gear is rotated by 300 degrees. Therefore, when the ninth gear rotates 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; Under the action of the return spring between the heat conducting plates, the first ring gear and the second ring gear will 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 state. In position; the air flow caused by the movement of the heat conducting plate dissipates heat from the heat conducting plate. Since the ninth gear rotates exactly 360 degrees when the arc triggers the hand to rotate into contact with the arc trigger block; when the arc triggers the hand to rotate into contact with the arc trigger block, the ninth gear rotates to the original position again. .

Beneficial effect

Compared with the conventional power circuit breaker technology, in the present invention, the movement of the heat conducting plate can quickly lead to the generation of a high temperature and high heat arc between the arc trigger wrench and the arc trigger block during the opening or closing process.

DRAWINGS

1 is a schematic view of the overall component; FIG. 2 is a schematic view of the overall component distribution; FIG. 3 is a schematic view of the internal distribution of the overall component; FIG. 4 is a schematic view of the second gear and the third gear; FIG. Fig. 7 is a schematic view showing the installation of the second ring gear; Fig. 8 is a schematic view showing the structure of the draft casing; Fig. 9 is a schematic view showing the cooperation of the sixth gear and the tenth gear; Fig. 10 is a schematic view showing the structure of the second ring gear; Fig. 12 is a schematic view showing the structure of the heat conducting plate; Fig. 13 is a schematic view showing the structure of the arc triggering wrench; Fig. 14 is a schematic view showing the structure of the arc guiding shell; Fig. 15 is a schematic view showing the structure of the mounting shell; 17 is a schematic view showing the installation of the second trapezoidal guide rail; FIG. 18 is a schematic view showing the structure of the heat conducting plate; FIG. 19 is a schematic view showing the cooperation of the first trapezoidal guide rail and the second curved guide groove; FIG. 20 is a schematic view showing the installation of the connecting block; Schematic; Figure 22 is a schematic view of the ninth gear structure.

In the figure, the label name: 3, the exhaust shell; 4, the mounting shell; 5, the arc trigger wrench; 6, the arc trigger block; 7, the second gear; 9, the fourth gear; 10, the fifth gear; 12, seventh gear; 13, arc guiding shell; 14, third gear; 16, drive shaft; 24, third shaft; 48, eighth shaft; 49, fourth support; 50, eighth gear; Ninth gear; 53, first ring gear; 54, second ring gear; 55, tenth gear; 56, annular guide groove; 57, heat conducting plate; 58, return spring; 59, arc guide groove; Mounting groove; 61, lug; 62, trigger block mounting groove; 63, first curved guiding groove; 64, second curved guiding groove; 65, heat conducting plate mounting groove; 66, wind hole; 67, guiding groove; 68, the first trapezoidal guide rail; 69, the second trapezoidal guide rail; 70, the guide block; 71, the ninth shaft; 72, the tenth shaft; 73, the ring outlet pipe; 74, the eleventh shaft; 75, tenth Two rotating shaft; 76, fifth support; 77, driving mechanism; 78, trigger mechanism; 80, heat absorbing mechanism; 81, curved side plate; 82, curved bottom plate; 83, top plate; Mounting block; 85, connecting block.

BEST MODE FOR CARRYING OUT THE INVENTION

As shown in FIGS. 1 and 3, it includes a driving mechanism 77, a triggering mechanism 78, and a heat absorbing mechanism 80. As shown in FIG. 2, the driving mechanism 77 and the triggering mechanism 78 are respectively mounted on the outer side of the heat absorbing mechanism 80, and the driving mechanism. 77. The trigger mechanism 78 and the heat absorption mechanism 80 cooperate with each other.

As shown in FIG. 5, the heat absorbing mechanism 80 includes a draft casing 3, a mounting shell 4, a heat conducting plate 57, a return spring 58, a first curved guiding groove 63, a second curved guiding groove 64, and a heat conducting plate mounting groove 65. a wind tunnel 66, a ring outlet duct 73, a guide groove 67, a first trapezoidal guide rail 68, a second trapezoidal guide rail 69, and a guide block 70, wherein as shown in Fig. 15, the mounting shell 4 is divided into a semicircular end and a square end; The inner side of the mounting shell 4 is provided with a heat conducting plate mounting groove 65; two arcuate guiding grooves 67 are symmetrically opened on both sides of the heat conducting plate mounting groove 65; the two curved guiding grooves 67 are respectively matched with the arcuate heat conducting mounting grooves; A first curved guiding groove 63 and a second curved guiding groove 64 are respectively formed on both sides of the upper semicircular end of the shell 4; the first curved guiding groove 63 and the second curved guiding groove 64 respectively cooperate with the two guiding grooves 67 A plurality of uniformly distributed wind holes 66 are symmetrically opened on both end faces of the square end of the mounting shell 4; as shown in FIG. 18, two guide blocks 70 are symmetrically mounted on both sides of the heat conducting plate 57, and two sides on the same side The guiding blocks 70 are symmetrical to each other; as shown in FIGS. 12 and 19, the plurality of heat conducting plates 57 respectively pass through the four guiding blocks 70 and the mounting shell 4 mounted thereon. The engagement of the guide grooves 67 is uniformly installed in the mounting case 4, and the heat conducting plates 57 located in the mounting case 4 are symmetrical with each other in the mounting case 4; as shown in Fig. 11, the heat conduction on the same side in the mounting case 4 Two return springs 58 are symmetrically mounted between two adjacent heat conducting plates 57 in the plate 57; the heat conducting plate 57 located in the mounting shell 4 cooperates with the first curved guiding groove 63 and the second curved guiding groove 64 As shown in FIGS. 16 and 17, the first trapezoidal guide 68 and the second trapezoidal guide 69 are respectively mounted on both side faces of the mounting case 4, and as shown in FIG. 17, the first curved guide rail and the second curved guide groove 64 and cooperate, as shown in FIG. 16, the second curved guide rail cooperates with the first curved guide groove 63; as shown in FIG. 8, the draft casing 3 is divided into a semicircular end and a square end; and the draft casing 3 is mounted on the mounting shell 4 On the outer side surface, and the semicircular end on the draft casing 3 cooperates with the semicircular end on the mounting shell 4, the square end on the draft casing 3 cooperates with the square end on the mounting shell 4; the inner side of the draft casing 3 and the mounting shell 4 The side air holes 66 are in communication; the annular air outlet pipe 73 is mounted on one side of the upper semicircular end of the draft casing 3; the annular air outlet pipe 73 is opposite to the inner side of the draft air duct 3 through.

As shown in FIG. 5, the trigger mechanism 78 includes an arc guide shell 13, an arc guide groove 59, a wrench mounting groove 60, a lug 61, a trigger block mounting groove 62, an arc trigger wrench 5, an arc trigger block 6, a drive shaft 16, The curved side plate 81, the curved bottom plate 82, the top plate 83, the trigger mounting block 84, and the second gear 7, wherein as shown in Fig. 14, the arc guiding shell 13 is composed of two curved side plates 81, a curved bottom plate 82, and a top plate. 83 and the trigger mounting block 84, the two curved side plates 81 are symmetrical with each other; the curved bottom plate 82 is mounted on the lower side of the two curved side plates 81; the top plate 83 is mounted on the upper side of the two curved side plates 81; The block 84 is provided with a trigger block mounting groove 62; the trigger mounting block 84 is mounted on the top ends of the two curved side plates 81 and the curved bottom plate 82; the two curved side plates 81, the curved bottom plate 82 and the top plate 83 constitute an arc a guide groove 59; a top plate 83 is provided with a wrench mounting groove 60; two ears 61 are symmetrically mounted on the upper side of the top plate 83; and an arc guiding case 13 is mounted on the square end side of the mounting case 4; as shown in FIG. The drive shaft 16 is mounted on the two lugs 61; the arc trigger wrench 5 is mounted on the drive shaft 16, and the arc trigger wrench 5 is located on the wrench The arc trigger block 6 is mounted in the trigger block mounting groove 62; as shown in FIG. 13, the arc trigger block 6 cooperates with the arc trigger wrench 5; the arc trigger block 6, the arc trigger wrench 5 and the arc guide groove 59 cooperate As shown in FIG. 4, the second gear 7 is mounted at one end of the drive shaft 16.

As shown in FIG. 3, the above-mentioned 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, and a fourth support 49. The eighth gear 50, the ninth gear 51, the first ring gear 53, the second ring gear 54, the tenth gear 55, the annular guide groove 56, the ninth rotating shaft 71, the tenth rotating shaft 72, the eleventh rotating shaft 74, a twelve-axis 75, wherein, as shown in FIG. 7, the third shaft 24 is mounted on an end surface of the mounting shell 4; the third gear 14 is mounted on the third 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 its outer circumference; the ninth gear 51 is mounted on the third shaft 24; as shown in FIG. 9, the tenth shaft 72 is mounted on the mounting shell 4 and mounted thereon. The end surface of the third shaft 24 is on the end surface; the eighth gear 50 is mounted on the tenth shaft 72; the eighth gear 50 is engaged with the ninth gear 51; as shown in FIG. 10, the second ring gear 54 has an annular guide groove 56. The second ring gear 54 is mounted on the mounting shell 4 by the engagement of the annular guide groove 56 and the second trapezoidal guide 69 on the side of the third rotating shaft 24 On the end face; as shown in FIG. 6, the internal teeth on the second ring gear 54 mesh with the eighth gear 50; the ninth shaft 71 is mounted on the draft casing 3 and is located on the same side of the mounting shell 4 as the third rotating shaft 24; The fourth gear 9 is mounted on the ninth rotating shaft 71; the fourth gear 9 is meshed with the external teeth on the second ring gear 54; the eighth rotating shaft 48 is mounted on the draft casing 3 through the ninth support; and the fifth gear 10 is mounted in the eighth One end of the rotating shaft 48; the fifth gear 10 meshes with the fourth gear 9; the sixth gear 11 is mounted at one end of the eighth rotating shaft 48; the eleventh rotating shaft 74 is mounted on the draft casing 3, and the eleventh rotating shaft 74 and the sixth The gear 11 is located on the same side of the mounting case 4; the tenth gear 55 is mounted on the eleventh rotating shaft 74; the tenth gear 55 is meshed with the sixth gear 11; the twelfth rotating shaft 75 is mounted on the mounting case 4, and the twelfth The rotating shaft 75 and the sixth gear 11 are located on the same side of the mounting shell 4; the seventh gear 12 is mounted on the twelfth rotating shaft 75; the seventh gear 12 is meshed with the tenth gear 55; and the first ring gear 53 has an annular guide groove 56 thereon. The first ring gear 53 is mounted on the mounting shell 4 by the engagement of the annular guide groove 56 and the first trapezoidal guide 68 11 with the end face side of the sixth gear; engaging external teeth on the second ring gear 54 and the seventh gear 12.

As shown in FIG. 12, the above-mentioned heat conducting plates 57 located inside the mounting case 4 in the initial state are symmetrical with each other in the mounting case 4, as shown in FIG. 20, and two heat conducting plates which are in contact with each other in the heat conducting plate mounting groove 65. 57 is connected to the first ring gear 53 and the second ring gear 54 through two connecting blocks 85, respectively, and the two connecting blocks 85 respectively pass through the first curved guiding groove 63 and the second curved guiding groove on the mounting shell 4. 64.

When the ninth gear 51 is rotated by 300 degrees, the teeth on the ninth gear 51 are completely disengaged from the eighth gear 50.

After the ninth gear 51 is rotated by 300 degrees, the heat conducting plates 57 on the upper and lower sides of the mounting shell 4 are respectively moved to the square end side of the mounting shell 4 by the first ring gear 53 and the second ring gear 54. The heat conducting plate is installed in the groove 65.

The diameter value of the fifth gear 10 is equal to the diameter value of the sixth gear 11.

One end of the drive shaft 16 on which the second gear 7 is mounted is mounted with a fifth support 76 that stabilizes the drive shaft 16.

When the arc trigger wrench 5 drives the ninth gear 51 to rotate 300 degrees, an arc is generated between the arc trigger plate and the arc trigger block 6.

The above-described ninth gear 51 rotates exactly 360 degrees when the arc trigger wrench is rotated into contact with the arc trigger block 6.

In summary:

In the present invention, the movement of the heat conducting plate 57 can quickly lead to the generation of a high temperature and high heat arc between the arc triggering wrench 5 and the arc triggering block 6 during the closing or closing process.

In the present invention, four guide blocks 70 are symmetrically mounted on both sides of the heat conducting plate 57; the plurality of heat conducting plates 57 are evenly coupled with the two guiding grooves 67 on the mounting shell 4 through the four guiding blocks 70 mounted thereon, respectively. Installed in the mounting shell 4; two return springs 58 are symmetrically mounted between the adjacent two heat conducting plates 57 in the heat conducting plate 57 on the same side of the mounting shell 4; the heat conducting plate 57 located in the mounting shell 4 Cooperating with the first curved guiding groove 63 and the second curved guiding groove 64; the first trapezoidal guide 68 and the second trapezoidal guide 69 are respectively mounted on both sides of the mounting shell 4, and the first curved rail and the second arc The guide groove 64 cooperates, the second curved guide rail cooperates with the first curved guide groove 63; the draft casing 3 is mounted on the outer side surface of the mounting shell 4; the inner side of the draft casing 3 communicates with the air holes 66 on both sides of the mounting shell 4. The annular outlet duct 73 is mounted on one side of the upper semicircular end of the draft casing 3; the annular outlet duct 73 communicates with the inner side of the draft casing 3; the arc guiding casing 13 is composed of two curved side plates 81, a curved bottom plate 82, and a top plate 83 and the trigger mounting block 84, the two curved side plates 81 are symmetrical to each other; the curved bottom plate 82 is mounted under the two curved side plates 81 The top plate 83 is mounted on the upper side of the two curved side plates 81; the trigger mounting block 84 is provided with the trigger block mounting groove 62; the trigger mounting block 84 is mounted on the top ends of the two curved side plates 81 and the curved bottom plate 82; The arc-shaped side plate 81, the curved bottom plate 82 and the top plate 83 constitute an arc guide groove 59; the top plate 83 is provided with a wrench mounting groove 60; the two lugs 61 are symmetrically mounted on the upper side of the top plate 83; the arc guiding shell 13 Mounted on the side of the square end of the mounting shell 4; the drive shaft 16 is mounted on the two lugs 61; the arc trigger wrench 5 is mounted on the drive shaft 16, and the arc trigger wrench 5 is located in the wrench mounting slot 60; the arc trigger block 6 is mounted In the trigger block mounting groove 62; the arc trigger block 6 cooperates with the arc trigger wrench 5; the arc trigger block 6, the arc trigger wrench 5 and the arc channel 59 cooperate; the second gear 7 is mounted at one end of the drive shaft 16; the third shaft 24 is mounted on the end surface of one side of the mounting shell 4; the third gear 14 is mounted on the third rotating shaft 24; the third gear 14 is engaged with the second gear 7; the outer surface of the ninth gear 51 has a section of teeth; The nine gear 51 is mounted on the third shaft 24; the tenth shaft 72 is mounted on the mounting shell 4 The end surface on which the third rotating shaft 24 is mounted; the eighth gear 50 is mounted on the tenth rotating shaft 72; the eighth gear 50 is engaged with the ninth gear 51; the second ring gear 54 has an annular guide groove 56; The ring gear 54 is mounted on the end surface of the mounting shell 4 on the side of the mounting shaft 4 on the side of the third rotating shaft 24 through the engagement 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 mounted on the draft casing 3 and is located on the same side of the mounting casing 4 as the third rotating shaft 24; the fourth gear 9 is mounted on the ninth rotating shaft 71; the external gear on the fourth gear 9 and the second ring gear 54 Engaging; the eighth rotating shaft 48 is mounted on the draft casing 3 through the ninth support; the fifth gear 10 is mounted on one end of the eighth rotating shaft 48; the fifth gear 10 is meshed with the fourth gear 9; and the sixth gear 11 is mounted on the eighth rotating shaft One end of 48; the eleventh rotating shaft 74 is mounted on the draft casing 3, and the eleventh rotating shaft 74 and the sixth gear 11 are located on the same side of the mounting shell 4; the tenth gear 55 is mounted on the eleventh rotating shaft 74; The gear 55 meshes with the sixth gear 11; the twelfth rotating shaft 75 is mounted on the mounting case 4, and the tenth The rotating shaft 75 and the sixth gear 11 are located on the same side of the mounting shell 4; the seventh gear 12 is mounted on the twelfth rotating shaft 75; the seventh gear 12 is meshed with the tenth gear 55; and the first ring gear 53 has an annular guide groove 56 thereon. The first ring gear 53 is mounted on the end face of the mounting shell 4 on the side where the sixth gear 11 is mounted by the engagement of the annular guide groove 56 and the first trapezoidal guide 68; the external gear and the seventh gear on the second ring gear 54 12 meshing; in the initial state, the heat conducting plates 57 located inside the mounting shell 4 are vertically symmetrical in the mounting shell 4, and the two heat conducting plates 57 which are in contact with each other in the heat conducting board mounting groove 65 respectively pass through the two connecting blocks 85 and A ring gear 53 and a second ring gear 54 are coupled, and the two connecting blocks 85 respectively pass through the first curved guide groove 63 and the second curved guide groove 64 on the mounting case 4. In the present invention, after the ninth gear 51 is rotated by 300 degrees, the teeth on the ninth gear 51 are completely disengaged from the eighth gear 50. When the ninth gear 51 is rotated by 300 degrees, the heat conducting plates 57 located on the upper and lower sides of the mounting case 4 are respectively moved by the first ring gear 53 and the second ring gear 54 to the heat conduction on the square end side of the mounting case 4. The board is mounted in the slot 65. In the present invention, the diameter value of the fifth gear 10 is equal to the diameter value of the sixth gear 11. One end of the drive shaft 16 on which the second gear 7 is mounted is mounted with a fifth support 76 that stabilizes the drive shaft 16. The circuit breaker designed by the present invention is used when the arc trigger wrench 5 is swung toward the side of the arc trigger block 6; the arc trigger wrench 5 drives the drive shaft 16 to rotate; the drive shaft 16 rotates to drive the second gear 7 to rotate; The rotation of the second gear 7 drives the third gear 14 to rotate; the rotation of the third gear 14 drives the rotation of the third rotating shaft 24; the rotation of the third rotating shaft 24 drives the rotation of the ninth gear 51; the rotation of the ninth gear 51 drives the rotation of the eighth gear 50; The rotation of the gear 50 drives the rotation of the first ring gear 53; the rotation of the first ring gear 53 drives the rotation of the fourth gear 9; the rotation of the fourth gear 9 drives the rotation of the fifth gear 10; the rotation of the fifth gear 10 drives the rotation of the eighth shaft 48; The rotation of the rotating shaft 48 drives the sixth gear 11 to rotate; the rotation of the sixth gear 11 drives the rotation of the tenth gear 55; the rotation of the tenth gear 55 drives the rotation of the seventh gear 12; and the rotation of the seventh gear 12 drives the rotation of the second ring gear 54; As shown, the first ring gear 53 and the second ring gear 54 rotate, respectively, through the connecting block 85 to drive the heat conducting plate 57 located at the upper and lower ends of the inner side of the mounting shell 4 around the first ring gear 53 and the second ring The axis of the gear 54 rotates; when the arc trigger wrench 5 drives the ninth gear 51 to rotate 300 degrees, an arc is generated between the arc trigger and the arc trigger block 6; therefore, when the ninth gear 51 rotates 350 degrees, the arc triggers An arc is generated between the arc triggering blocks 6; the arc generated between the arc triggering plate and the arc triggering block 6 is moved into the heat conducting plate mounting groove 65 through the arc guide groove 59; as shown in Fig. 21b, since the ninth gear 51 is rotated 300 After that, the heat conducting plates 57 located on the upper and lower sides of the mounting case 4 are respectively moved by the first ring gear 53 and the second ring gear 54 to the heat conducting plate mounting grooves 65 on the square end side of the mounting case 4. Therefore, under the action of the negative pressure on the inner side of the draft casing 3, the arc between the arc triggering plate and the arc triggering block 6 moves to the upper and lower sides of the heat conducting plate mounting groove 65 through the arc guiding groove 59. Then, the heat on the arc is transmitted to the corresponding heat conducting plate 57; since the teeth on the ninth gear 51 are completely disengaged from the eighth gear 50 after the ninth gear 51 is rotated by 300 degrees. Therefore, when the ninth gear 51 rotates 300 degrees, the ninth gear 51 and the eighth gear 50 are disengaged; at this time, the eighth gear 50 loses the driving force; that is, the first ring gear 53 and the second ring gear 54 lose the driving force; Therefore, under the action of the return spring mounted between the adjacent heat conducting plates 57, the first ring gear 53 and the second ring gear 54 are rotated in the original state; as shown in FIG. 21c, the first ring gear 53 and The second ring gear 54 rotates to bring the heat conducting plate 57 of the mounting case 4 back to the original position; the air flow caused by the movement of the heat conducting plate 57 dissipates the heat on the heat conducting plate 57. Since the ninth gear 51 rotates exactly 360 degrees when the arc triggers the hand to rotate into contact with the arc trigger block 6; when the arc triggers the hand to rotate into contact with the arc trigger block 6, the ninth gear 51 is rotated again The original location. In the present invention, the diameter value of the fifth gear 10 is equal to the diameter of the sixth gear 11; the function is to ensure that the first ring gear 53 and the second ring gear 54 are located in the mounting shell 4 during the movement of the corresponding heat conducting plate 57. The heat transfer plates 57 on the upper and lower sides of the inner side move at the same speed.

Embodiments of the invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS: When a circuit breaker designed by the present invention is used, when the arc trigger wrench 5 is swung toward the side of the arc trigger block 6, the arc trigger wrench 5 drives the drive shaft 16 to rotate; the drive shaft 16 rotates to drive the second gear. 7 rotation; the second gear 7 rotates to drive the third gear 14 to rotate; the third gear 14 rotates to drive the third shaft 24 to rotate; the third shaft 24 rotates to drive the ninth gear 51 to rotate; the ninth gear 51 rotates to drive the eighth gear 50 Rotation; 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; and the fifth gear 10 rotates to drive the eighth shaft 48 Rotation; 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 respectively to drive the heat conducting plate 57 located at the upper and lower ends of the inner side of the mounting shell 4 around the first ring gear 53 and the second ring through the connecting block 85 The axis of the gear 54 rotates; when the arc trigger wrench 5 drives the ninth gear 51 to rotate 300 degrees, an arc is generated between the arc trigger and the arc trigger block 6; therefore, when the ninth gear 51 rotates 350 degrees, the arc triggers An arc is generated between the arc trigger block 6 and the arc generated between the arc trigger plate and the arc trigger block 6 is moved into the heat conducting plate mounting groove 65 through the arc guide groove 59; since the ninth gear 51 is rotated 300 degrees, the mounting case is mounted. The heat conducting plates 57 located on the upper and lower sides of the mounting ring 4 are respectively moved to the heat conducting plate mounting grooves 65 on the square end side of the mounting case 4 by the first ring gear 53 and the second ring gear 54. Therefore, under the action of the negative pressure on the inner side of the draft casing 3, the arc between the arc triggering plate and the arc triggering block 6 moves to the upper and lower sides of the heat conducting plate mounting groove 65 through the arc guiding groove 59. Then, the heat on the arc is transmitted to the corresponding heat conducting plate 57; since the teeth on the ninth gear 51 are completely disengaged from the eighth gear 50 after the ninth gear 51 is rotated by 300 degrees. Therefore, when the ninth gear 51 rotates 300 degrees, the ninth gear 51 and the eighth gear 50 are disengaged; at this time, the eighth gear 50 loses the driving force; that is, the first ring gear 53 and the second ring gear 54 lose the driving force; Therefore, under the action of the return spring mounted between the adjacent heat conducting plates 57, the first ring gear 53 and the second ring gear 54 are rotated in the original state; the first ring gear 53 and the second ring gear 54 rotate. The heat conducting plate 57 that drives the mounting case 4 gradually returns to its original position; the air flow caused by the movement of the heat conducting plate 57 dissipates the heat on the heat conducting plate 57. Since the ninth gear 51 rotates exactly 360 degrees when the arc triggers the hand to rotate into contact with the arc trigger block 6; when the arc triggers the hand to rotate into contact with the arc trigger block 6, the ninth gear 51 is rotated again The original location.

Industrial applicability

The present invention has been successfully developed and used. It is apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the invention is defined by the appended claims instead All changes in the meaning and scope of equivalent elements are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim.

In addition, it should be understood that although the description is described in terms of embodiments, not every embodiment includes only one independent technical solution. The description of the specification is merely for the sake of clarity, and those skilled in the art should regard the specification as a whole. The technical solutions in the respective embodiments may also be combined as appropriate to form other embodiments that can be understood by those skilled in the art.

Claims

The arc extinguishing mechanism of the gear-based power circuit breaker is characterized in that it comprises a driving mechanism, a triggering mechanism and a heat absorbing mechanism, wherein the driving mechanism and the triggering mechanism are respectively installed on the outer side of the heat absorbing mechanism, and the driving mechanism and the triggering mechanism Cooperating with the heat absorption mechanism;

The heat absorbing mechanism comprises an air absorbing shell, a mounting shell, a heat conducting plate, a return spring, a first curved guiding groove, a second curved guiding groove, a heat conducting plate mounting groove, a wind hole, a ring outlet pipe, a guiding groove, The first trapezoidal guide rail, the second trapezoidal guide rail and the guide block, wherein the mounting shell is divided into a semi-circular end and a square end; the heat-dissipating plate mounting groove is opened on the inner side of the mounting shell; two curved surfaces are symmetrically opened on both sides of the heat-dissipating plate mounting groove a guiding groove; the two curved guiding grooves respectively cooperate with the arc-shaped heat conducting mounting groove; the first curved guiding groove and the second curved guiding groove are respectively formed on both sides of the upper semicircular end of the mounting shell; the first curved guiding groove and The second curved guiding groove is respectively matched with the two guiding grooves; the two end faces of the square end of the mounting shell are symmetrically opened with a plurality of evenly distributed wind holes; the two sides of the heat conducting plate are symmetrically mounted with four guiding blocks, and are located at the same The two guiding blocks on the side are symmetrical to each other; the plurality of heat conducting plates are uniformly installed in the mounting shell through the cooperation of the four guiding blocks mounted thereon and the two guiding grooves on the mounting shell, and the heat conducting plate located in the mounting shell Symmetrical in the upper and lower sides of the mounting shell; in the mounting shell Two return springs are symmetrically mounted between two adjacent heat conducting plates on the same side of the heat conducting plate; the heat conducting plate located in the mounting shell cooperates with the first curved guiding groove and the second curved guiding groove; a trapezoidal guide rail and a second trapezoidal guide rail are respectively mounted on both sides of the mounting shell, and the first curved guide rail cooperates with the second curved guide groove and the second curved guide rail cooperates with the first curved guide groove; the exhaust shell Divided into a semi-circular end and a square end; the exhaust shell is mounted on the outer side of the mounting shell, and the semicircular end on the draft shell cooperates with the semicircular end on the mounting shell, and the square end on the draft shell cooperates with the square end on the mounting shell; The inner side of the shell communicates with the wind holes on both sides of the installation shell; the annular outlet duct is installed on one side of the semicircular end of the draft casing; the annular outlet duct communicates with the inner side of the draft casing;

The trigger mechanism includes an arc guiding shell, an arc guiding groove, a wrench mounting groove, a lug, a trigger block mounting groove, an arc trigger wrench, an arc trigger block, a drive shaft, a curved side plate, a curved bottom plate, a top plate, and a trigger mounting block. a second gear, wherein the arc guiding shell is composed of two curved side plates, a curved bottom plate, a top plate and a trigger mounting block, the two curved side plates are symmetrical to each other; the curved bottom plate is mounted on the lower side of the two curved side plates The top plate is mounted on the sides of the two curved side plates; the trigger mounting block is provided with a trigger block mounting groove; the trigger mounting block is mounted on the top of the two curved side plates and the curved bottom plate; two curved side plates and arcs The bottom plate and the top plate constitute an arc guiding groove; the top plate is provided with a wrench mounting groove; the two ears are symmetrically mounted on the upper side of the top plate; the arc guiding shell is mounted on the square end side of the mounting shell; the driving shaft is mounted on two sides On the lug; the arc trigger wrench is mounted on the drive shaft, and the arc trigger wrench is located in the wrench mounting groove; the arc trigger block is installed in the trigger block mounting groove; the arc trigger block is matched with the arc trigger wrench; the arc trigger block and the electric arc Trigger mating wrench and arc guide groove; and a second gear mounted to one end of the drive shaft;

The driving mechanism includes a third gear, a fourth gear, a fifth gear, a sixth gear, a seventh gear, an eighth shaft, a fourth support, an eighth gear, a ninth gear, a first ring gear, and 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 mounted on an end surface of the mounting shell side; the third gear is mounted on the electric rotating shaft, The third gear meshes with the second gear; the ninth gear has a section of teeth on the outer circumference; the ninth gear is mounted on the third shaft; and the tenth shaft is mounted on the end surface of the mounting shell on the side of the third shaft The eighth gear is mounted on the tenth rotating shaft; the eighth gear is matched with the ninth gear; the second ring gear has an annular guide groove; the second ring gear is mounted on the mounting shell by the cooperation of the annular guide groove and the second trapezoidal guide rail; The end surface of the second rotating shaft is mounted on the end surface; the inner tooth on the second ring gear meshes with the eighth gear; the ninth rotating shaft is mounted on the exhaust casing and is located on the same side of the mounting shell as the third rotating shaft; the fourth gear is mounted on Ninth turn The fourth gear meshes with the external teeth on the second ring gear; the eighth shaft is mounted on the draft casing through the ninth support; the fifth gear is mounted on one end of the eighth shaft; the fifth gear meshes with the fourth gear; The six gears are mounted on one end of the eighth rotating shaft; the eleventh rotating shaft is mounted on the draft casing, and the eleventh rotating shaft and the sixth gear are located on the same side of the mounting shell; the tenth gear is mounted on the eleventh rotating shaft; the tenth gear Engaging with the sixth gear; the twelfth rotating shaft is mounted on the mounting shell, and the twelfth rotating shaft and the sixth gear are on the same side of the mounting shell; the seventh gear is mounted on the twelfth rotating shaft; the seventh gear and the tenth gear Engaging; the first ring gear has an annular guide groove; the first ring gear is mounted on the end surface of the mounting shell on the side of the sixth gear by the cooperation of the annular guide groove and the first trapezoidal guide rail; The teeth mesh with the seventh gear;

The heat conducting plates located inside the mounting case in the initial state are symmetrically symmetrical in the mounting case, and the two heat conducting plates contacting each other in the heat conducting plate mounting groove respectively pass through the two connecting blocks and the first ring gear and the second ring The gears are connected, and the two connecting blocks respectively pass through the first curved guiding groove and the second curved guiding groove on the mounting shell.
The arc extinguishing mechanism of a gear-based power circuit breaker according to claim 1, wherein when the ninth gear rotates by 300 degrees, the teeth on the ninth gear are completely disengaged from the eighth gear.
The arc extinguishing mechanism of a gear-based power circuit breaker according to claim 1, wherein: when the ninth gear rotates 300 degrees, the heat conducting plate on the upper and lower sides of the mounting shell is in the first ring gear And the second ring gear is respectively driven to move into the heat-conducting plate mounting groove on the square end side of the mounting shell.
The arc extinguishing mechanism of a gear-based power circuit breaker according to claim 1, wherein a diameter value of said fifth gear is equal to a diameter value of said sixth gear.
The arc extinguishing mechanism of a gear-based power circuit breaker according to claim 1, wherein one end of the drive shaft on which the second gear is mounted is mounted with a fifth support for stabilizing the drive shaft.
The arc extinguishing mechanism of a gear-based power circuit breaker according to claim 1, wherein: when the arc triggering wrench drives the ninth gear to rotate 300 degrees, an arc is generated between the arc triggering plate and the arc triggering block. .
The arc extinguishing mechanism of a gear-based power circuit breaker according to claim 1, wherein said ninth gear rotates exactly 360 degrees when the arc triggering hand is rotated into contact with the arc trigger block.