CN213845143U - Circuit breaker assembly for ring main unit - Google Patents
Circuit breaker assembly for ring main unit Download PDFInfo
- Publication number
- CN213845143U CN213845143U CN202023047664.3U CN202023047664U CN213845143U CN 213845143 U CN213845143 U CN 213845143U CN 202023047664 U CN202023047664 U CN 202023047664U CN 213845143 U CN213845143 U CN 213845143U
- Authority
- CN
- China
- Prior art keywords
- movable contact
- contact piece
- mounting hole
- linkage block
- fixed contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Breakers (AREA)
Abstract
The utility model relates to a circuit breaker subassembly for looped netowrk cabinet. The to-be-solved technical problem of the utility model is to provide a circuit breaker subassembly for looped netowrk cabinet that action is reliable and stable, connect inseparable. The utility model discloses a technical scheme including left side board, right side board, drive shaft, vacuum circuit breaker, isolator subassembly and action subassembly, the action subassembly includes first static contact, second static contact, link gear, bent arm, first movable contact spring, second linkage piece and screw assembly, link gear includes square sleeve pipe and first linkage piece, and square sleeve intraductal square mounting hole that is equipped with, link gear is injection moulding as an organic whole, and bent arm is waist shape structure, its one end with first linkage piece is articulated, its other end with second linkage piece is articulated, and second linkage piece is arranged in between first movable contact spring and the second movable contact spring. The utility model has the advantages that: the driving shaft and the linkage mechanism are tightly installed, the action is reliable, and the misoperation cannot occur.
Description
Technical Field
The utility model relates to a looped netowrk cabinet technical field, concretely relates to circuit breaker subassembly for looped netowrk cabinet.
Background
Vacuum circuit breaker aerifys one of the core part of looped netowrk cabinet circuit breaker unit, and the looped netowrk cabinet circuit breaker is connected with the isolator cooperation, and current circuit breaker has following several problems: 1, under the condition that a moving contact is frequently opened and closed, the clamping force at the hinged part of the moving contact and a fixed contact is poor, and the moving contact is easy to loosen after being used for a long time, so that the current carrying capacity and the conductive effect of the moving contact are influenced; 2, the integral heat dissipation performance is poor, the convergence performance is poor, the acting force overcome during opening and closing is large, and the abrasion of a moving contact and a static contact is large during opening and closing abrasion; 3 the connection between the driving shaft and the crank arm is not firm enough, and the malfunction is easy to occur.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the to-be-solved technical problem of the utility model is to provide a circuit breaker subassembly for looped netowrk cabinet that the action is reliable and stable, the heat dissipation is good, connect inseparable.
The utility model discloses technical scheme that circuit breaker subassembly adopted for the looped netowrk cabinet: comprises a left side plate, a right side plate, a driving shaft penetrating between the left side plate and the right side plate, a vacuum circuit breaker, an isolating switch assembly and an action assembly, it is characterized in that the action component comprises a first fixed contact fixed on the vacuum circuit breaker, a second fixed contact fixed on the isolating switch component, a linkage mechanism sleeved on the driving shaft, a crank arm, a first movable contact piece, a second linkage block and a screw assembly, the linkage mechanism comprises a square sleeve and a first linkage block, a square mounting hole is arranged in the square sleeve, the linkage mechanism is integrally formed by injection molding, the crank arm is of a waist-shaped structure, one end of the first linkage block is hinged with the first movable contact piece, the other end of the first linkage block is hinged with the second linkage block, and the second linkage block is arranged between the first movable contact piece and the second movable contact piece;
the first movable contact piece and the second movable contact piece are both provided with an adjusting gap, the first movable contact piece and the second movable contact piece are both provided with a first movable contact piece mounting hole and a second movable contact piece mounting hole, an arc-shaped salient point corresponding to the first fixed contact is further arranged above the first movable contact piece mounting hole, and a pressing convex bag corresponding to the second fixed contact is arranged on the second movable contact piece mounting hole;
the screw assembly penetrates through the first movable contact piece mounting hole to connect the upper ends of the first movable contact piece and the second movable contact piece together, a fixed contact mounting hole is formed in the second fixed contact, a fixed contact positioning groove corresponding to the compression convex hull is formed in the fixed contact mounting hole, the screw assembly penetrates through the second movable contact piece mounting hole and the fixed contact mounting hole in sequence to fix the second fixed contact between the first movable contact piece and the second movable contact piece.
The screw assembly comprises a screw, a first spring, a second spring and a nut, wherein the first spring is sleeved on the screw and is arranged on the outer side of the first movable contact piece, the second spring is sleeved on the screw and is arranged on the outer side of the second movable contact piece, and the nut is sleeved on the screw.
The second linkage block is provided with a linkage block fixing column convenient to fix with the crank arm, the second linkage block is further provided with a second linkage block mounting hole, and the middle part of the first movable contact piece and the middle part of the second movable contact piece are respectively provided with a third movable contact piece mounting hole corresponding to the second linkage block mounting hole.
The isolating switch assembly comprises an insulating seat used for fixing the second fixed contact, a square supporting rod, an isolating support frame, grounding bodies arranged on the isolating support frame and a penetrating shaft used for connecting the three grounding bodies, and the insulating seat and the isolating support frame are connected together through the square supporting rod.
And the insulating seat is provided with a second fixed contact positioning convex seat corresponding to the second fixed contact, and the insulating seat is also provided with a support rod inserting hole and a support rod installing groove for placing the square support rod.
The utility model discloses circuit breaker subassembly for looped netowrk cabinet's advantage lies in: 1, the driving shaft and the linkage mechanism are tightly installed and reliably operated, and false operation is avoided; 2 the movable contact and the second fixed contact are tightly connected, the abrasion is small, the whole heat radiation performance is good, in addition, the movable contact and the second fixed contact are tightly clamped and firmly connected and are not easy to loosen, and the current carrying and conducting capacity of the movable contact is good.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the circuit breaker assembly for the ring main unit of the present invention;
FIG. 2 is a schematic structural diagram of the actuating assembly of the present invention;
fig. 3 is a schematic structural diagram of the linkage mechanism of the present invention;
fig. 4 is a schematic structural diagram of the first movable contact spring of the present invention;
fig. 5 is a schematic structural view of a second stationary contact according to the present invention;
fig. 6 is a schematic structural view of the screw assembly of the present invention;
fig. 7 is a schematic structural diagram of a second linkage block of the present invention;
fig. 8 is a schematic structural diagram of the isolating switch assembly of the present invention;
fig. 9 is a schematic structural view of the insulating base of the present invention.
Detailed Description
As shown in fig. 1-9, the utility model relates to a circuit breaker assembly for ring main unit, which comprises a left side plate 1, a right side plate 2, a driving shaft 3 penetrating between the left side plate 1 and the right side plate 2, a vacuum circuit breaker 4, an isolating switch assembly 5 and an action assembly 6, wherein the action assembly 6 comprises a first fixed contact 10 fixed on the vacuum circuit breaker 4, a second fixed contact 11 fixed on the isolating switch assembly 5, a linkage mechanism 12 sleeved on the driving shaft 3, a crank arm 13, a first movable contact 15, a second movable contact 16, a second linkage block 14 and a screw assembly 17, the linkage mechanism 12 comprises a square sleeve 20 and a first linkage block 21, a square mounting hole 22 is arranged in the square sleeve 20, the linkage mechanism 12 is integrally injection-molded, the crank arm 13 is a waist-shaped structure, and one end thereof is hinged with the first linkage block 21, the other end of the second linkage block is hinged with the second linkage block 14, and the second linkage block 14 is arranged between the first movable contact piece 15 and the second movable contact piece 16; the first movable contact piece 15 and the second movable contact piece 16 are both provided with an adjusting gap 25, the first movable contact piece 15 and the second movable contact piece 16 are both provided with a first movable contact piece mounting hole 27 and a second movable contact piece mounting hole 28, an arc-shaped salient point 30 corresponding to the first fixed contact 10 is further arranged above the first movable contact piece mounting hole 27, and a pressing convex packet 29 corresponding to the second fixed contact 11 is arranged on the second movable contact piece mounting hole 28; the screw assembly 17 penetrates through the movable contact piece first mounting hole 27 to connect the upper ends of the first movable contact piece 15 and the second movable contact piece 16 together, the second fixed contact 11 is provided with a fixed contact mounting hole 18, the fixed contact mounting hole 18 is provided with a fixed contact positioning groove 19 corresponding to the pressing convex hull 29, the screw assembly 17 sequentially penetrates through the movable contact piece second mounting hole 28 and the fixed contact mounting hole 18 to fix the second fixed contact 11 between the first movable contact piece 15 and the second movable contact piece 16, and the structure has the advantages that the installation between the driving shaft and the linkage mechanism is tight, the action is reliable, and the misoperation cannot occur; the movable contact piece and the second fixed contact are tightly connected, the abrasion is small, the integral heat dissipation performance is good, in addition, the movable contact and the second fixed contact are tightly clamped, the connection is firm, and the current-carrying and electric-conducting capacity of the movable contact is good.
The screw assembly 17 comprises a screw 31, a first spring 33 sleeved on the screw 31 and arranged outside the first movable contact piece 15, a second spring 32 sleeved on the screw 31 and arranged outside the second movable contact piece 16, and a nut 34, so that the clamping force is further enhanced, and the buffering effect is good.
The second linkage block 14 is provided with a linkage block fixing column 35 convenient to fix with the crank arm 13, the second linkage block 14 is further provided with a second linkage block mounting hole 36, and the middle parts of the first movable contact piece 15 and the second movable contact piece 16 are respectively provided with a movable contact piece third mounting hole 26 corresponding to the second linkage block mounting hole 36, so that the connection is tight and firm, and the looseness is effectively prevented.
The isolating switch assembly 5 includes an insulating base 45 for fixing the second stationary contact 11, a square support rod 46, an isolating support frame 37, a grounding body 38 disposed on the isolating support frame 37, and a penetrating shaft 39 connecting the three grounding bodies 38, wherein the square support rod 46 connects the insulating base 45 and the isolating support frame 37 together.
The insulating base 45 is provided with a second fixed contact positioning convex base 40 corresponding to the second fixed contact 11, and the insulating base 45 is further provided with a support rod insertion hole 41 and a support rod installation groove 42 for placing the square support rod 46, so that the positioning is accurate, and the connection is firm and reliable.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention are all included within the protection scope of the present invention.
Claims (5)
1. The utility model provides a circuit breaker subassembly for looped netowrk cabinet, includes left side board (1), right side board (2), runs through left side board (1) with drive shaft (3), vacuum circuit breaker (4), isolator subassembly (5) and action subassembly (6) between right side board (2), its characterized in that: the action component (6) comprises a first fixed contact (10) fixed on the vacuum circuit breaker (4), a second fixed contact (11) fixed on the isolating switch component (5), a linkage mechanism (12) sleeved on the driving shaft (3), a crank arm (13), a first movable contact piece (15), a second movable contact piece (16), a second linkage block (14) and a screw assembly (17), the linkage mechanism (12) comprises a square sleeve (20) and a first linkage block (21), a square mounting hole (22) is arranged in the square sleeve (20), the linkage mechanism (12) is integrally formed by injection molding, the crank arm (13) is of a waist-shaped structure, one end of the first linkage block is hinged with the first linkage block (21), the other end of the first linkage block is hinged with the second linkage block (14), the second linkage block (14) is arranged between the first movable contact piece (15) and the second movable contact piece (16);
the first movable contact piece (15) and the second movable contact piece (16) are both provided with an adjusting gap (25), the first movable contact piece (15) and the second movable contact piece (16) are both provided with a first movable contact piece mounting hole (27) and a second movable contact piece mounting hole (28), an arc-shaped salient point (30) corresponding to the first fixed contact (10) is further arranged above the first movable contact piece mounting hole (27), and a pressing convex bag (29) corresponding to the second fixed contact (11) is arranged on the second movable contact piece mounting hole (28);
the screw assembly (17) penetrates through the movable contact piece first mounting hole (27) to connect the upper ends of the first movable contact piece (15) and the second movable contact piece (16) together, the fixed contact mounting hole (18) is formed in the second fixed contact (11), a fixed contact positioning groove (19) corresponding to the compression convex hull (29) is formed in the fixed contact mounting hole (18), the screw assembly (17) penetrates through the movable contact piece second mounting hole (28) and the fixed contact mounting hole (18) in sequence to fix the second fixed contact (11) between the first movable contact piece (15) and the second movable contact piece (16).
2. The ring main unit breaker assembly as claimed in claim 1, wherein: the screw assembly (17) comprises a screw (31), a first spring (33) sleeved on the screw (31) and arranged on the outer side of the first movable contact piece (15), a second spring (32) sleeved on the screw (31) and arranged on the outer side of the second movable contact piece (16), and a nut (34).
3. The ring main unit breaker assembly as claimed in claim 1, wherein: the second linkage block (14) is provided with a linkage block fixing column (35) convenient to fix with the crank arm (13), the second linkage block (14) is further provided with a second linkage block mounting hole (36), and the middle parts of the first movable contact piece (15) and the second movable contact piece (16) are respectively provided with a movable contact piece third mounting hole (26) corresponding to the second linkage block mounting hole (36).
4. The ring main unit breaker assembly as claimed in claim 1, wherein: the isolating switch assembly (5) comprises an insulating base (45) used for fixing the second fixed contact (11), a square supporting rod (46), an isolating support frame (37), a grounding body (38) arranged on the isolating support frame (37) and a penetrating shaft (39) used for connecting the three grounding bodies (38), wherein the insulating base (45) and the isolating support frame (37) are connected together through the square supporting rod (46).
5. The ring main unit breaker assembly as claimed in claim 4, wherein: and a second static contact positioning convex seat (40) corresponding to the second static contact (11) is arranged on the insulating seat (45), and a support rod inserting opening (41) and a support rod installing groove (42) for placing the square support rod (46) are also arranged on the insulating seat (45).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023047664.3U CN213845143U (en) | 2020-12-17 | 2020-12-17 | Circuit breaker assembly for ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023047664.3U CN213845143U (en) | 2020-12-17 | 2020-12-17 | Circuit breaker assembly for ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213845143U true CN213845143U (en) | 2021-07-30 |
Family
ID=76998492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023047664.3U Active CN213845143U (en) | 2020-12-17 | 2020-12-17 | Circuit breaker assembly for ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213845143U (en) |
-
2020
- 2020-12-17 CN CN202023047664.3U patent/CN213845143U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20030092811A (en) | A fuel filler door assembly for a vehicle | |
| CN108899244B (en) | Circuit breaker | |
| CN213845143U (en) | Circuit breaker assembly for ring main unit | |
| CN114845499B (en) | Power semiconductor module | |
| CN208903916U (en) | A kind of vacuum circuit breaker of gas cabinet | |
| CN201877343U (en) | Indoor medium-voltage solid-enveloped vacuum circuit breaker | |
| CN108198705B (en) | Duckbilled contact and the switchgear for using the contact | |
| CN109166761A (en) | A kind of vacuum circuit breaker of gas cabinet | |
| CN215343656U (en) | Valve mechanism | |
| CN113035601A (en) | Clip sliding type contact microswitch | |
| CN111370254A (en) | Large-current toggle switch with electromagnetic shielding characteristic | |
| CN215731527U (en) | Integrated wiring element and molded case circuit breaker | |
| CN214068624U (en) | Three-station isolation mechanism | |
| CN216288277U (en) | Instantaneous mechanism of circuit breaker | |
| CN213635821U (en) | Load switch for ring main unit | |
| CN219435726U (en) | Sealed three-loop switch | |
| CN220306184U (en) | Circuit breaker with reduced height | |
| CN219832441U (en) | Grounding switch | |
| CN214754697U (en) | Switch cabinet arc fault protection device | |
| CN214797147U (en) | Clip sliding type contact microswitch | |
| CN216902762U (en) | Circuit breaker operating device and electric power cabinet | |
| CN218732746U (en) | Novel dry air formula gas insulated switchgear connecting piece | |
| CN214226803U (en) | Knife switch type isolating switch | |
| CN212136351U (en) | Magnetic latching relay with microswitch | |
| CN215933458U (en) | Auxiliary contact signal transmission structure of isolating switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |