Circuit breaker frame with high assembly precision
By using assembled bolts to fasten the connection in the circuit breaker frame, the assembly error problem caused by welding deformation is solved, and higher assembly accuracy and consistency of mechanical characteristics is achieved.
Patent Information
- Application Number
- CN202323610206.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2033-12-28
AI Technical Summary
Welding deformation leads to large assembly errors in the circuit breaker frame, affecting the consistency of mechanical characteristics.
The circuit breaker frame design is designed to tighten the connection with assembled bolts, and is connected to the bolts through the screw holes of the side plate and the mounting frame to ensure the precise assembly of each component.
The frame assembly time is shortened, the center surface deviation of the isolation knife switch, static contacts and ground knife copper rows is reduced, and the consistency of mechanical characteristics is improved.
Smart Images
Figure CN222530334U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a circuit breaker frame with improved welding deformation in the field of circuit breakers. Background Art
[0002] The frame of the sealed pole type environmental protection cabinet circuit breaker adopts a welded frame structure. When assembling it, the connection between the various components needs to be achieved by welding. During the welding process, the components to be assembled need to be spliced together, and then the two need to be pressed and stabilized before welding. A slight shake can easily cause the components to be welded out of place, and thermal deformation will occur during welding, resulting in large errors during switch assembly, which has a certain impact on the mechanical properties of the switch. Utility Model Content
[0003] The purpose of the utility model is to provide a circuit breaker frame with high assembly accuracy, which shortens the frame assembly time while ensuring strength, reduces the deviation of the center plane of the isolating knife switch, the isolating static contact and the ground knife copper bar, and improves the consistency of mechanical characteristics.
[0004] To achieve the above purpose, the utility model provides a circuit breaker frame with high assembly accuracy, including a pair of side plates, the rear of the side plates are provided with screw holes and are bolted to the rear mounting frame, and the front of the side plates are also provided with screw holes and are bolted to the front mounting frame.
[0005] Compared with the prior art, the beneficial effect of the utility model lies in that the various components are fastened together using assembly bolts during assembly, which not only shortens the frame assembly time, reduces the deviation of the center plane of the isolating knife switch, the isolating static contact and the ground knife copper busbar, but also improves the consistency of the mechanical properties.
[0006] As a further improvement of the utility model, the rear mounting frame includes a static contact mounting seat and an isolation side reinforcement plate, a pair of upper folding plates are processed at both ends of the static contact mounting seat, a screw hole is opened in the middle of the upper folding plate, and the screw hole of the upper folding plate is connected to the screw hole at the upper end of the rear portion of the side plate by bolts; lower folding plates are arranged at both ends of the isolation side reinforcement plate, a screw hole is opened in the middle of the lower folding plate, and the screw hole of the lower folding plate is connected to the screw hole at the lower end of the rear portion of the side plate by bolts.
[0007] In this way, the static contact mounting seat is fixedly connected with the upper screw holes of the rear part of the side plate through the screw holes on the upper folding plates at both ends, and the isolation side reinforcement plate is fixedly connected with the lower screw holes of the rear part of the side plate through the screw holes of the lower folding plates at both ends. In this way, the rear half of the entire circuit breaker frame is assembled and bolted, which is fast and accurate.
[0008] As a further improvement of the present invention, the front mounting frame includes a sealed pole mounting plate, the upper and lower ends of the sealed pole mounting plate are processed with horizontal folding plates of the rotating shaft, the two ends of the horizontal folding plate of the rotating shaft are processed with vertical folding plates of the rotating shaft, screw holes are opened on the vertical folding plates of the rotating shaft, and the screw holes of the vertical folding plates of the rotating shaft are connected to the screw holes at the front of the side plates by bolts; the front mounting frame also includes a grounding bar mounting plate, the bottom ends of the grounding bar mounting plate are processed with grounding folding plates, the grounding folding plates are processed with screw holes, and the screw holes of the grounding folding plates are connected to the screw holes at the upper end of the front of the side plates by bolts.
[0009] In this way, the sealed pole mounting plate is connected to the front screw hole of the side plate through the screw hole of the vertical folding plate of the rotating shaft by bolts, and the grounding bar mounting plate is connected to the screw hole of the upper front end of the side plate through the screw hole of the grounding folding plate. In this way, the front half of the circuit breaker frame is also assembled and bolted, which is fast and high-precision.
[0010] As a further improvement of the utility model, upper buckles are processed in the middle of both ends of the static contact mounting seat, the upper buckles are located between the upper folding plates, and the upper buckles match the upper grooves opened on the upper ends of the side plates.
[0011] In this way, the static contact mounting seat can be inserted into the upper slot of the side panel through the upper buckle for initial assembly, and then connected with bolts, which can further improve the assembly accuracy and enhance the structural strength.
[0012] As a further improvement of the present invention, grounding buckles are processed in the middle of the two ends of the bottom of the grounding bar mounting plate, and the grounding buckles match the grounding slots opened at the upper end of the front part of the side plate.
[0013] In this way, the grounding bar mounting plate can first be plugged into the slot at the upper front end of the side panel through the grounding buckle, and then connected with bolts, which can further improve the assembly accuracy and enhance the structural strength.
[0014] As a further improvement of the utility model, a front shaft slot is processed at the front end of the horizontal folding plate of the shaft, and the front shaft slot matches the front shaft buckle at the front of the shaft fixing clamping plate. A rear shaft slot is opened on the sealed pole mounting plate, and the rear shaft slot matches the rear shaft buckle at the rear of the shaft fixing clamping plate. The front shaft slot is plugged into the front shaft buckle and fixed by welding, and the rear shaft slot is plugged into the rear shaft buckle and fixed by welding.
[0015] In this way, the shaft fixing clamping plate is finally assembled with the sealed pole mounting plate by plugging the front shaft clamping slot with the front shaft clamping buckle and the rear shaft clamping slot with the rear shaft clamping buckle, and welding is also performed at the plug-in joint to improve the stability and strength of the assembly, and the welding after assembly effectively reduces the difficulty of welding.
[0016] As a further improvement of the present utility model, a plurality of reinforcing ribs are processed on the stationary contact mounting seat; thus, the structural strength of the stationary contact mounting seat can be improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is an exploded view of the utility model.
[0018] Figure 2 It is a schematic diagram of the structure of the utility model.
[0019] Figure 3 for Figure 1 A partial enlarged view of point A in the middle.
[0020] Figure 4 for Figure 1 A partial enlarged view of point B in the middle.
[0021] Figure 5 for Figure 1 A partial enlarged view of point C in the middle.
[0022] Figure 6 for Figure 1 A partial enlarged view of point D in the middle.
[0023] Figure 7 for Figure 1 A partial enlarged view of point E in the middle.
[0024] Among them, 1 is a grounding bar mounting plate, 2 is a side plate, 3 is a reinforcing rib, 4 is a static contact mounting seat, 5 is a screw hole, 6 is a bolt, 7 is a horizontal folding plate of the rotating shaft, 8 is a rotating shaft fixing card plate, 9 is a sealed pole mounting plate, 10 is an isolation side reinforcing plate, 11 is an upper folding plate, 12 is an upper buckle, 13 is an upper slot, 14 is a grounding folding plate, 15 is a grounding buckle, 16 is a lower folding plate, 17 is a front rotating shaft buckle, 18 is a rear rotating shaft buckle, 19 is a front rotating shaft slot, 20 is a vertical folding plate of the rotating shaft, 21 is a rear rotating shaft slot, and 22 is a grounding slot. DETAILED DESCRIPTION
[0025] The utility model is further described below in conjunction with the accompanying drawings:
[0026] like Figure 1-7 The circuit breaker frame shown has high assembly accuracy, and includes a pair of side plates 2. The rear of the side plates 2 is provided with screw holes 5, which are connected to the rear mounting frame bolts 6. The front of the side plates 2 is also provided with screw holes 5, which are connected to the front mounting frame bolts 6.
[0027] The rear mounting frame includes a static contact mounting seat 4 and an isolation side reinforcement plate 10. A pair of upper folding plates 11 are processed at both ends of the static contact mounting seat 4. A screw hole 5 is opened in the middle of the upper folding plate 11. The screw hole 5 of the upper folding plate 11 is connected to the screw hole 5 at the upper end of the rear portion of the side plate 2 by a bolt 6; lower folding plates 16 are arranged at both ends of the isolation side reinforcement plate 10. A screw hole 5 is opened in the middle of the lower folding plate 16. The screw hole 5 of the lower folding plate 16 is connected to the screw hole 5 at the lower end of the rear portion of the side plate 2 by a bolt 6.
[0028] The front mounting frame includes a sealed pole mounting plate 9, the upper and lower ends of the sealed pole mounting plate 9 are processed with horizontal folding plates 7 of the rotating shaft, the two ends of the horizontal folding plate 7 are processed with vertical folding plates 20 of the rotating shaft, screw holes 5 are opened on the vertical folding plates 20 of the rotating shaft, and the screw holes 5 of the vertical folding plates 20 of the rotating shaft are connected to the screw holes 5 at the front of the side plate 2 by bolts 6; the front mounting frame also includes a grounding bar mounting plate 1, the bottom ends of the grounding bar mounting plate 1 are processed with grounding folding plates 14, screw holes 5 are opened on the grounding folding plate 14, and the screw holes 5 of the grounding folding plate 14 are connected to the screw holes 5 at the upper end of the front of the side plate 2 by bolts 6.
[0029] An upper buckle 12 is processed in the middle of both ends of the static contact mounting seat 4, and the upper buckle 12 is between the upper folding plates 11, and the upper buckle 12 matches the upper slot 13 opened at the upper end of the side plate 2. A grounding buckle 15 is processed in the middle of both ends of the bottom of the grounding bar mounting plate 1, and the grounding buckle 15 matches the grounding slot 22 opened at the upper end of the front part of the side plate 2, and a plurality of reinforcing ribs 3 are processed on the static contact mounting seat 4.
[0030] A front shaft slot 19 is processed at the front end of the shaft horizontal folding plate 7, and the front shaft slot 19 matches the front shaft buckle 17 at the front of the shaft fixing clamping plate 8. A rear shaft slot 21 is opened on the sealed pole mounting plate 9, and the rear shaft slot 21 matches the rear shaft buckle 18 at the rear of the shaft fixing clamping plate 8. The front shaft slot 19 is plugged into the front shaft buckle 17 and fixed by welding, and the rear shaft slot 21 is plugged into the rear shaft buckle 18 and fixed by welding.
[0031] In the present invention, the static contact mounting seat 4 is first inserted into the upper slot 13 of the side plate 2 through the upper buckle 12 for initial assembly, and then the static contact mounting seat 4 is fixedly connected with the rear upper screw hole 5 of the side plate 2 through the screw hole 5 on the upper folding plate 11 at both ends by bolts 6; the isolation side reinforcement plate 10 is fixedly connected with the rear lower screw hole 5 of the side plate 2 through the screw hole 5 of the lower folding plate 16 at both ends by bolts 6; the grounding bar mounting plate 1 is first plugged into the slot at the upper front end of the side plate 2 through the grounding buckle 15 , then the grounding bar mounting plate 1 is connected to the screw hole 5 at the upper front end of the side plate 2 through the screw hole 5 of the grounding folding plate 14 by means of bolts 6; the sealed pole mounting plate 9 is connected to the front screw hole 5 of the side plate 2 through the screw hole 5 of the upper and lower rotating shaft vertical folding plates 20 at both ends by means of bolts 6; the rotating shaft fixing clamping plate 8 is finally assembled with the sealed pole mounting plate 9 by plugging the front rotating shaft clamping groove 19 with the front rotating shaft buckle 17 and the rear rotating shaft clamping groove 21 with the rear rotating shaft buckle 18, and welding is also performed at the plug-in joint.
[0032] The circuit breaker frame structure of the utility model is assembled as a whole by bolts 6, which not only shortens the frame assembly time, reduces the deviation of the center plane of the isolating knife switch, the isolating static contact and the ground knife copper bar, but also improves the consistency of the mechanical characteristics, avoiding the problem of large switch assembly errors caused by thermal deformation of the main part due to welding.
[0033] The present utility model is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed herein, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present utility model.
Claims
1. A circuit breaker frame with high assembly accuracy, characterized in that: The utility model comprises a pair of side plates, wherein the rear part of the side plates is provided with screw holes and connected with the rear mounting frame by bolts, and the front part of the side plates is also provided with screw holes and connected with the front mounting frame by bolts.
2. A circuit breaker frame with high assembly accuracy according to claim 1, characterized in that: The rear mounting frame includes a static contact mounting seat and an isolation side reinforcement plate. A pair of upper folding plates are processed at both ends of the static contact mounting seat. A screw hole is opened in the middle of the upper folding plate. The screw hole of the upper folding plate is connected to the screw hole at the upper end of the rear part of the side plate through bolts. Lower folding plates are arranged at both ends of the isolation side reinforcement plate, screw holes are opened in the middle of the lower folding plates, and the screw holes of the lower folding plates are connected with the screw holes at the lower end of the rear part of the side plates through bolts.
3. A circuit breaker frame with high assembly accuracy according to claim 2, characterized in that: The front mounting frame includes a sealed pole mounting plate, the upper and lower ends of the sealed pole mounting plate are processed with horizontal folding plates of the rotating shaft, both ends of the horizontal folding plate of the rotating shaft are processed with vertical folding plates of the rotating shaft, screw holes are opened on the vertical folding plates of the rotating shaft, and the screw holes of the vertical folding plates of the rotating shaft are connected with the screw holes at the front of the side plates by bolts; The front mounting frame also includes a grounding bar mounting plate, the bottom ends of which are processed with grounding folding plates, which are provided with screw holes, and the screw holes of the grounding folding plates are connected to the screw holes at the upper ends of the front parts of the side plates by bolts.
4. A circuit breaker frame with high assembly accuracy according to claim 3, characterized in that: An upper buckle is processed at the middle of both ends of the static contact mounting seat, the upper buckle is located between the upper folding plates, and the upper buckle matches the upper clamping groove opened on the upper end of the side plate.
5. A circuit breaker frame with high assembly accuracy according to claim 4, characterized in that: The middle of the two ends of the bottom of the ground bar mounting plate are processed with grounding buckles, and the grounding buckles match the grounding slots opened at the upper end of the front part of the side plate.
6. A circuit breaker frame with high assembly accuracy according to claim 5, characterized in that: A front shaft slot is processed at the front end of the horizontal folding plate of the shaft, and the front shaft slot matches with the front shaft buckle at the front of the shaft fixing clamping plate. A rear shaft slot is opened on the sealed pole mounting plate, and the rear shaft slot matches with the rear shaft buckle at the rear of the shaft fixing clamping plate. The front shaft slot is plugged into the front shaft buckle and fixed by welding, and the rear shaft slot is plugged into the rear shaft buckle and fixed by welding.
7. A circuit breaker frame with high assembly accuracy according to claim 6, characterized in that: A plurality of reinforcing ribs are processed on the static contact mounting seat.