CN205282378U - Drive mechanism of circuit breaker and transmission case and transmission case - Google Patents
Drive mechanism of circuit breaker and transmission case and transmission case Download PDFInfo
- Publication number
- CN205282378U CN205282378U CN201520991231.3U CN201520991231U CN205282378U CN 205282378 U CN205282378 U CN 205282378U CN 201520991231 U CN201520991231 U CN 201520991231U CN 205282378 U CN205282378 U CN 205282378U
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- hinged
- plate
- pull bar
- hinged axle
- axle
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 84
- 230000007246 mechanism Effects 0.000 title abstract description 7
- 238000009413 insulation Methods 0.000 claims description 26
- 238000005266 casting Methods 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 abstract description 17
- 230000001360 synchronised effect Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
- 241000446313 Lamella Species 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 5
- 230000035939 shock Effects 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Abstract
The utility model relates to a drive mechanism of circuit breaker and transmission case and transmission case. This circuit breaker includes the transmission case. This transmission case includes box and drive mechanism. Drive mechanism includes, the lower contact pull rod and through about move to drive go up, insulating pull rod that the lower contact pull rod reciprocated, still include even the board and link the board down, upper and lower even board is through first articulated shaft and insulating pull rod is articulated links to each other links that the board passes through the second articulated shaft and last contact pull rod is articulated links to each other on, links down that the board passes through the third articulated shaft and the lower contact pull rod is articulated continuous, drive mechanism still includes the fixed hinge axle, epaxial the hinging of fixed hinge has upper and lower intermediate lamella. Insulating pull rod drives and goes up, lower contact pull rod synchronous motion's in -process, and on the perpendicular to that go up, the guide structure of lower contact pull rod receives, the impact load on the lower contact pull rod direction of motion is shared by fixed hinge axle and upper and lower intermediate lamella, it is less that this makes guide structure receive impact load, makes guide structure be difficult to damage, also makes synchronous motion 0 improve.
Description
Technical field
The utility model relates to the transmission rig of isolating switch, is specifically related to a kind of isolating switch and the transmission rig of transmission case and transmission case.
Background technology
Double-fracture isolating switch comprises two arc suppressing transformer, when isolating switch cut-offs, and two synchronous actions of arc suppressing transformer. Between double-fracture, the synchronism of on/off switch motion is the key of double-fracture design. If the synchronism of on/off switch motion is very poor between double-fracture, then isolating switch will cause the significant difference of each fracture arc time when breaking current, what cause that breaking course fracture voltage distributes is uneven, not only make the electrical wear difference of each contact relatively big, the more important thing is the even failure of interruption of restriking easily causing electric arc. Usually, transmission rig by being connected with two arc suppressing transformer synchronously drives the dynamic contact motion of two arc suppressing transformer and realizes the synchronous splitting or integrating lock of two arc suppressing transformer.
Such as, Authorization Notice No. is 204303672U, and name is called that a kind of transmission rig for double-fracture isolating switch discloses a kind of transmission rig. This transmission rig comprises two loop bars (being equivalent to upper contact head pull bar and lower contact pull bar), by moving up and down the insulation pull bar and two connecting levers (being equivalent to upper plate and lower plate) driving two expansion links synchronously to move left and right, one end pivot joint of connecting lever one end and loop bar, the pivot joint of its other end and insulation pull bar. The up and down motion of pull bar drives the synchronous left and right motion of two loop bars, thus realizes the synchronous splitting or integrating lock of two arc suppressing transformer. But, loop bar loop bar in tangential movement process can be subject to the effect of the bigger power being perpendicular in loop bar direction of motion in connecting lever articulated section, this power can act on the expansion link (being equivalent to guiding structure) of loop bar guiding, also it is exactly the effect that guiding structure is subject to shock load, this makes guiding structure easily damage, and affects the stationarity of transmission.
Practical novel content
The purpose of this utility model be to provide the transmission rig of a kind of transmission case to make to solve the guiding structure of upper and lower contact pull bar in the transmission rig of transmission case and be subject to the effect of shock load to lead technical problem that structure easily damages. The purpose of this utility model also is to provide a kind of transmission case and isolating switch.
The technical scheme of the transmission rig of transmission case of the present utility model: the transmission rig of transmission case, comprise upper contact head pull bar and lower contact pull bar and by moving left and right in drive, the insulation pull bar that lower contact pull bar moves up and down, also comprise upper plate and lower plate, on, lower plate is hinged and connected by the first hinged axle and insulation pull bar, upper plate is hinged and connected by the 2nd hinged axle and upper contact head pull bar, lower plate is hinged and connected by the 3rd hinged axle and lower contact pull bar, it is characterized in that: transmission rig also comprises fixing hinge, fixing hinge is hinged with upper mid plate and lower intermediate plate, upper mid plate is hinged and connected by the 4th hinged axle and upper plate, lower intermediate plate is hinged and connected by the 5th hinged axle and lower plate.
First hinged axle equals the distance of the 4th hinged axle to the 2nd hinged axle to the distance of the 4th hinged axle, and the first hinged axle equals the distance of the 5th hinged axle to the 3rd hinged axle to the distance of the 5th hinged axle.
The technical scheme of transmission case in the utility model: transmission case, comprise casing and transmission rig, transmission rig comprises upper contact head pull bar and lower contact pull bar and by moving left and right in drive, the insulation pull bar that lower contact pull bar moves up and down, also comprise upper plate and lower plate, on, lower plate is hinged and connected by the first hinged axle and insulation pull bar, upper plate is hinged and connected by the 2nd hinged axle and upper contact head pull bar, lower plate is hinged and connected by the 3rd hinged axle and lower contact pull bar, it is characterized in that: transmission rig also comprises fixing hinge, fixing hinge is hinged with upper mid plate and lower intermediate plate, upper mid plate is hinged and connected by the 4th hinged axle and upper plate, lower intermediate plate is hinged and connected by the 5th hinged axle and lower plate.
First hinged axle equals the distance of the 4th hinged axle to the 2nd hinged axle to the distance of the 4th hinged axle, and the first hinged axle equals the distance of the 5th hinged axle to the 3rd hinged axle to the distance of the 5th hinged axle.
Described casing comprises the upper base plate and lower base plate that are oppositely arranged, the front side board being oppositely arranged and rear side plate and left plate, described left plate is provided with the left perforation for the pull bar that insulate wears in left-right direction, described upper base plate is provided with the upper perforation for upper contact head pull bar wears, described lower base plate is provided with the lower perforation for lower contact pull bar wears, corresponding on described front side board and rear side plate it is provided with the first guide path for the first hinged axially oriented length extends in left-right direction, for the 2nd guide path that the 2nd hinged axially oriented length extends along the vertical direction, the 3rd guide path extended along the vertical direction for the 3rd hinged axially oriented length and the open holes installed for fixing hinge.
Described casing is made by casting, and upper base plate, lower base plate, front side board, rear side plate and left plate form opening cavity to the right.
The technical scheme of isolating switch in the utility model: isolating switch, comprise transmission case, transmission case comprises casing and transmission rig, transmission rig comprises upper contact head pull bar and lower contact pull bar and by moving left and right in drive, the insulation pull bar that lower contact pull bar moves up and down, also comprise upper plate and lower plate, on, lower plate is hinged and connected by the first hinged axle and insulation pull bar, upper plate is hinged and connected by the 2nd hinged axle and upper contact head pull bar, lower plate is hinged and connected by the 3rd hinged axle and lower contact pull bar, it is characterized in that: transmission rig also comprises fixing hinge, fixing hinge is hinged with upper mid plate and lower intermediate plate, upper mid plate is hinged and connected by the 4th hinged axle and upper plate, lower intermediate plate is hinged and connected by the 5th hinged axle and lower plate.
First hinged axle equals the distance of the 4th hinged axle to the 2nd hinged axle to the distance of the 4th hinged axle, and the first hinged axle equals the distance of the 5th hinged axle to the 3rd hinged axle to the distance of the 5th hinged axle.
Described casing comprises the upper base plate and lower base plate that are oppositely arranged, the front side board being oppositely arranged and rear side plate and left plate, described left plate is provided with the left perforation for the pull bar that insulate wears in left-right direction, described upper base plate is provided with the upper perforation for upper contact head pull bar wears, described lower base plate is provided with the lower perforation for lower contact pull bar wears, corresponding on described front side board and rear side plate it is provided with the first guide path for the first hinged axially oriented length extends in left-right direction, for the 2nd guide path that the 2nd hinged axially oriented length extends along the vertical direction, the 3rd guide path extended along the vertical direction for the 3rd hinged axially oriented length and the open holes installed for fixing hinge.
Described casing is made by casting, and upper base plate, lower base plate, front side board, rear side plate and left plate form opening cavity to the right.
Usefulness of the present utility model: the insulation pull bar moved left and right drives in the process that upper and lower contact pull bar synchronously moves up and down, the shock load that what the guiding structure of upper and lower contact pull bar was subject to be perpendicular in upper and lower contact pull bar direction of motion is fixed hinge and upper and lower intermediate plate is shared, it is less that this makes guiding structure be subject to shock load, make guiding structure be not easy to damage, and transmission stability is improved.
Further, owing to the first hinged axle equals the distance of the 4th hinged axle to the 2nd hinged axle to the distance of the 4th hinged axle, first hinged axle equals the distance of the 5th hinged axle to the 3rd hinged axle to the distance of the 5th hinged axle, now the guiding structure of upper and lower contact pull bar is not substantially by the effect of the shock load being perpendicular in upper and lower contact pull bar direction of motion, and the transmission efficiency height of transmission rig.
Accompanying drawing explanation
Fig. 1 be isolating switch embodiment in the front view of transmission rig of isolating switch;
Fig. 2 be isolating switch embodiment in the right view of transmission rig of isolating switch;
Fig. 3 be isolating switch embodiment in the principle schematic of transmission rig of isolating switch;
Fig. 4 be isolating switch embodiment in the stereographic map of casing of transmission case of isolating switch;
Fig. 5 be isolating switch embodiment in the structural representation of casing of transmission case of isolating switch;
Fig. 6 be isolating switch embodiment in the structural representation of transmission case of isolating switch;
Fig. 7 be isolating switch embodiment in the structural representation of isolating switch.
In figure: 1, Shell of circuit breaker; 2, circuit breaker trolley; 3, upper arc suppressing transformer; 4, lower arc suppressing transformer; 5, upper equalizing capacitance; 6, lower equalizing capacitance; 7, transmission case; 8, upper bearing; 9, undersetting; 10, upper contact head pull bar; 11, lower contact pull bar; 12, the first insulation column; 13, insulating barrier; 14, transmission case casing; 15, insulate pull bar; 16, upper plate; 17, lower plate; 18, the 2nd guide path; 19, the first hinged axle; 20, upper mid plate; 21, upper mid plate; 22, the 2nd hinged axle; 23, the 3rd hinged axle; 24, the 4th hinged axle; 25, the 5th hinged axle; 26, fixing hinge; 27, open holes; 30, front side board; 31, rear side plate; 32, it is flexible coupling; 33, the 2nd insulation column; 34, breaker mechanism; 35, the 3rd insulation column; 36, upper base plate; 37, lower base plate; 38, left plate; 39, upper perforation; 40, lower perforation; 41, upper contact arm; 42, lower contact arm; 45, the first guide path; 46, the 3rd guide path.
Embodiment
The embodiment of isolating switch of the present utility model is as shown in figs. 1-7: isolating switch comprises Shell of circuit breaker 1, circuit breaker trolley 2, breaker mechanism 34, arc suppressing transformer, equalizing capacitance, transmission case 7, upper bearing 8, undersetting 9, upper contact arm 10, lower contact arm 11, first insulation column 12, the 2nd insulation column 33, the 3rd insulation column 35 and insulating barrier 13 etc. arc suppressing transformer comprise the upper arc suppressing transformer 3 of the both sides up and down being symmetrically arranged in transmission case 7 and lower arc suppressing transformer 4. equalizing capacitance comprises the upper equalizing capacitance 5 of the both sides up and down being symmetrically arranged in transmission case 7 and lower equalizing capacitance 6. transmission case 7 comprises casing 14 and transmission rig. transmission rig comprises upper contact head pull bar 10 and lower contact pull bar 11 and by moving left and right in drive, the insulation pull bar 15 that lower contact pull bar moves up and down, also comprise upper plate 16 and lower plate 17, on, lower plate is hinged and connected with insulation pull bar 15 by the first hinged axle 19, upper plate 16 is hinged and connected with upper contact head pull bar 10 by the 2nd hinged axle 22, lower plate 17 is hinged and connected with lower contact pull bar 11 by the 3rd hinged axle 23, transmission rig also comprises fixing hinge 26, fixing hinge 26 is hinged with upper mid plate 20 and lower intermediate plate 21, upper mid plate 20 is hinged and connected with upper plate 16 by the 4th hinged axle 24, lower intermediate plate 21 is hinged and connected with lower plate 17 by the 5th hinged axle 25. the axisymmetrical of the 4th hinged axle 24 and the 5th hinged axle 25 opposing insulation pull bar 15 is arranged, being also exactly the first hinged axle 19 equals the distance of the first hinged axle 19 to the 5th hinged axle 25 to the distance of the 4th hinged axle 24. first hinged axle 19 equals the distance of the 4th hinged axle 24 to the 2nd hinged axle 22 to the distance of the 4th hinged axle 24, and the first hinged axle 19 equals the distance of the 5th hinged axle 25 to the 3rd hinged axle 23 to the distance of the 5th hinged axle 25. casing comprises the upper base plate 36 being oppositely arranged and lower base plate 37, the front side board 30 being oppositely arranged and rear side plate 31 and left plate 38. upper base plate 36, lower base plate 37, front side board 30, rear side plate 31 and left plate 38 form opening cavity to the right. left plate 38 is provided with the left perforation for the pull bar 15 that insulate wears in left-right direction, upper base plate 36 is provided with the upper perforation 39 for upper contact head pull bar 10 wears, lower base plate 37 is provided with the lower perforation 40 for lower contact pull bar 11 wears, corresponding the first guide path 45 being provided with the length for the first hinged axle 19 guiding and extending in left-right direction on front side board 30 and rear side plate 31, for the 2nd guide path 18 that the length of the 2nd hinged axle 22 guiding extends along the vertical direction, the 3rd guide path 46 extended along the vertical direction for the length of the 3rd hinged axle 23 guiding and the open holes 27 installed for fixing hinge 26. casing 14 monoblock casting, physical strength height.
The principle schematic of transmission rig is as shown in Figure 3. Fixing hinge place is defined as A0 point, and the first hinged axle 19 place is defined as A1 point, and the 2nd hinged axle 22 place is defined as A2 point, and the 3rd hinged axle 23 place is defined as A3, and the 4th hinged axle 24 place is defined as A4 point, and the 5th hinged axle 25 place is defined as A5. A4 is the mid point of line segment A1A2, and A5 is the mid point of line segment A1A3. The length that the length of line segment A0A4 equals A1A4 also equals the length of A0A5, and the length that the length of line segment A0A5 equals line segment A1A5 also equals the length of A0A4. A1 point is upper mobile drive A2 point and A3 point synchronizing moving along the vertical direction in left-right direction, is also exactly that the insulation pull bar 15 moved left and right drives upper contact head pull bar 10 and lower contact pull bar 11 synchronizing moving along the vertical direction, it is achieved the divide-shut brake of upper and lower arc suppressing transformer. In the present embodiment, the 2nd guide path 18 and the 3rd guide path 46 are equivalent to upper contact head pull bar 10 and the guiding structure of lower contact pull bar 11 respectively. Because transmission rig comprises upper mid plate 20 and lower intermediate plate 21, A4 is line segment A1A2 mid point simultaneously, A5 is line segment A1A3 mid point, now, even if there is no the 2nd guide path 18 and the 3rd guide path 46, the motion of upper and lower contact pull bar be still vertical upper and lower to, it does not have to the movement tendency of both sides skew, the sidewall of the 2nd guide path 18 and the 3rd guide path 46 can not being produced pressure, therefore the 2nd guide path 18 and the 3rd guide path 46 not easily damage. The effect of the 2nd guide path 18 and the 3rd guide path 46 is auxiliary spacing, the impact of supplementary processing and assembling equal error. And the power transmission efficiency height of the transmission rig in the utility model, active force is substantially all converted to the power needed for the motion of upper and lower contact pull bar. If not having upper mid plate 20 and lower intermediate plate 21, upper and lower contact pull bar direction of motion relies on guiding structural limitations completely, and the transfer efficiency of power is also low, and the power needed for the motion of upper and lower contact pull bar is a component of active force.
In the utility model in other embodiments of isolating switch, A4 is not the mid point of line segment A1A2, A5 is not the mid point of line segment A1A3, also it is exactly, first hinged axle 19 is not equal to the distance of the 4th hinged axle 24 to the 2nd hinged axle 22 to the distance of the 4th hinged axle 24, and the first hinged axle 19 is not equal to the distance of the 5th hinged axle 25 to the 3rd hinged axle 23 to the distance of the 5th hinged axle 25. Now only arrange with the axisymmetrical of the hinged axle 25 opposing insulation pull bar 15 of the 4th hinged axle 24 and the 5th.
In the utility model, in the embodiment of transmission case, the structure of transmission case is identical with the structure of transmission case in the embodiment of isolating switch, no longer repeats at this. In the utility model, in the embodiment of the transmission rig of transmission case, the structure of the transmission rig of transmission case is identical with the structure of transmission rig in the embodiment of isolating switch, no longer repeats at this.
Claims (10)
1. the transmission rig of transmission case, comprise upper contact head pull bar and lower contact pull bar and by moving left and right in drive, the insulation pull bar that lower contact pull bar moves up and down, also comprise upper plate and lower plate, on, lower plate is hinged and connected by the first hinged axle and insulation pull bar, upper plate is hinged and connected by the 2nd hinged axle and upper contact head pull bar, lower plate is hinged and connected by the 3rd hinged axle and lower contact pull bar, it is characterized in that: transmission rig also comprises fixing hinge, fixing hinge is hinged with upper mid plate and lower intermediate plate, upper mid plate is hinged and connected by the 4th hinged axle and upper plate, lower intermediate plate is hinged and connected by the 5th hinged axle and lower plate.
2. transmission rig according to claim 1, it is characterized in that: the first hinged axle equals the distance of the 4th hinged axle to the 2nd hinged axle to the distance of the 4th hinged axle, the first hinged axle equals the distance of the 5th hinged axle to the 3rd hinged axle to the distance of the 5th hinged axle.
3. transmission case, comprise casing and transmission rig, transmission rig comprises upper contact head pull bar and lower contact pull bar and by moving left and right in drive, the insulation pull bar that lower contact pull bar moves up and down, also comprise upper plate and lower plate, on, lower plate is hinged and connected by the first hinged axle and insulation pull bar, upper plate is hinged and connected by the 2nd hinged axle and upper contact head pull bar, lower plate is hinged and connected by the 3rd hinged axle and lower contact pull bar, it is characterized in that: transmission rig also comprises fixing hinge, fixing hinge is hinged with upper mid plate and lower intermediate plate, upper mid plate is hinged and connected by the 4th hinged axle and upper plate, lower intermediate plate is hinged and connected by the 5th hinged axle and lower plate.
4. transmission case according to claim 3, it is characterized in that: the first hinged axle equals the distance of the 4th hinged axle to the 2nd hinged axle to the distance of the 4th hinged axle, the first hinged axle equals the distance of the 5th hinged axle to the 3rd hinged axle to the distance of the 5th hinged axle.
5. transmission case according to claim 4, it is characterized in that: described casing comprises the upper base plate and lower base plate that are oppositely arranged, the front side board being oppositely arranged and rear side plate and left plate, described left plate is provided with the left perforation for the pull bar that insulate wears in left-right direction, described upper base plate is provided with the upper perforation for upper contact head pull bar wears, described lower base plate is provided with the lower perforation for lower contact pull bar wears, corresponding on described front side board and rear side plate it is provided with the first guide path for the first hinged axially oriented length extends in left-right direction, for the 2nd guide path that the 2nd hinged axially oriented length extends along the vertical direction, the 3rd guide path extended along the vertical direction for the 3rd hinged axially oriented length and the open holes installed for fixing hinge.
6. transmission case according to claim 5, it is characterised in that: described casing is made by casting, and upper base plate, lower base plate, front side board, rear side plate and left plate form opening cavity to the right.
7. isolating switch, comprise transmission case, transmission case comprises casing and transmission rig, transmission rig comprises upper contact head pull bar and lower contact pull bar and by moving left and right in drive, the insulation pull bar that lower contact pull bar moves up and down, also comprise upper plate and lower plate, on, lower plate is hinged and connected by the first hinged axle and insulation pull bar, upper plate is hinged and connected by the 2nd hinged axle and upper contact head pull bar, lower plate is hinged and connected by the 3rd hinged axle and lower contact pull bar, it is characterized in that: transmission rig also comprises fixing hinge, fixing hinge is hinged with upper mid plate and lower intermediate plate, upper mid plate is hinged and connected by the 4th hinged axle and upper plate, lower intermediate plate is hinged and connected by the 5th hinged axle and lower plate.
8. isolating switch according to claim 7, it is characterized in that: the first hinged axle equals the distance of the 4th hinged axle to the 2nd hinged axle to the distance of the 4th hinged axle, the first hinged axle equals the distance of the 5th hinged axle to the 3rd hinged axle to the distance of the 5th hinged axle.
9. isolating switch according to claim 7, it is characterized in that: described casing comprises the upper base plate and lower base plate that are oppositely arranged, the front side board being oppositely arranged and rear side plate and left plate, described left plate is provided with the left perforation for the pull bar that insulate wears in left-right direction, described upper base plate is provided with the upper perforation for upper contact head pull bar wears, described lower base plate is provided with the lower perforation for lower contact pull bar wears, corresponding on described front side board and rear side plate it is provided with the first guide path for the first hinged axially oriented length extends in left-right direction, for the 2nd guide path that the 2nd hinged axially oriented length extends along the vertical direction, the 3rd guide path extended along the vertical direction for the 3rd hinged axially oriented length and the open holes installed for fixing hinge.
10. isolating switch according to claim 9, it is characterised in that: described casing is made by casting, and upper base plate, lower base plate, front side board, rear side plate and left plate form opening cavity to the right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520991231.3U CN205282378U (en) | 2015-12-03 | 2015-12-03 | Drive mechanism of circuit breaker and transmission case and transmission case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520991231.3U CN205282378U (en) | 2015-12-03 | 2015-12-03 | Drive mechanism of circuit breaker and transmission case and transmission case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205282378U true CN205282378U (en) | 2016-06-01 |
Family
ID=56066927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520991231.3U Expired - Fee Related CN205282378U (en) | 2015-12-03 | 2015-12-03 | Drive mechanism of circuit breaker and transmission case and transmission case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205282378U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105405712A (en) * | 2015-12-03 | 2016-03-16 | 平高集团有限公司 | Circuit breaker, transmission case and transmission mechanism of transmission case |
| CN109616374A (en) * | 2018-12-22 | 2019-04-12 | 祥兴电气有限公司 | A kind of vacuum circuit breaker |
-
2015
- 2015-12-03 CN CN201520991231.3U patent/CN205282378U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105405712A (en) * | 2015-12-03 | 2016-03-16 | 平高集团有限公司 | Circuit breaker, transmission case and transmission mechanism of transmission case |
| CN105405712B (en) * | 2015-12-03 | 2018-06-08 | 平高集团有限公司 | A kind of transmission mechanism of breaker and transmission case and transmission case |
| CN109616374A (en) * | 2018-12-22 | 2019-04-12 | 祥兴电气有限公司 | A kind of vacuum circuit breaker |
| CN109616374B (en) * | 2018-12-22 | 2019-10-29 | 祥兴电气有限公司 | A kind of vacuum circuit breaker |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 |
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| CF01 | Termination of patent right due to non-payment of annual fee |