CN222106580U - Double-contact breaker mechanism - Google Patents
Double-contact breaker mechanism Download PDFInfo
- Publication number
- CN222106580U CN222106580U CN202420694525.9U CN202420694525U CN222106580U CN 222106580 U CN222106580 U CN 222106580U CN 202420694525 U CN202420694525 U CN 202420694525U CN 222106580 U CN222106580 U CN 222106580U
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- Prior art keywords
- circuit breaker
- double
- component
- moving contact
- handle
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- 230000007246 mechanism Effects 0.000 title claims abstract description 62
- 239000000306 component Substances 0.000 claims description 31
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 239000008358 core component Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000003908 quality control method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a double-contact breaker mechanism, which belongs to the technical field of breakers and comprises a breaker shell, wherein a handle part is arranged at the upper part of an inner cavity of the breaker shell, a lock catch part is connected with a bottom driving end of the handle part through a handle spring part, one end of the handle part, which is opposite to the handle spring part, is in dynamic contact with the inner wall of the lock catch part through a jump buckle component, one end of the jump buckle component, which is far away from the handle part, is connected with a moving contact integrated mechanism, the top end of the moving contact integrated mechanism is connected with the jump buckle component through a jump buckle pin shaft, an arc striking plate is arranged at the lower part of one side of the moving contact integrated mechanism and is positioned in the inner cavity of the breaker shell, and an arc extinguishing chamber is arranged in the breaker shell, and the arc striking plate is far away from one end of the moving contact integrated mechanism. The laminated assembly mode is realized, the assembly process is simplified, the size control is centralized, the quality control is facilitated, the cost advantage is obvious, and the market competitiveness of the product is improved.
Description
Technical Field
The utility model belongs to the technical field of circuit breakers, and particularly relates to a double-contact circuit breaker mechanism.
Background
Is a switch that automatically opens whenever the current in the circuit exceeds the rated current. An air switch is an important electrical appliance in a low-voltage distribution network and an electric traction system, and integrates control and various protection functions. Besides the contact and breaking of the circuit, the protection of short circuit, serious overload, undervoltage and the like of the circuit or the electrical equipment can be realized.
At present, the double-contact mechanism scheme of the miniature circuit breaker in the prior art is of a four-bar structure, the mechanism generally comprises an upper cover, a base, a handle spring and a U-shaped rod, a trip is provided with a trip shaft pin, a lock catch, an indicating piece, a contact support, a main shaft, a tension spring shaft, a moving contact shaft pin, an upper moving contact, a lower moving contact, a annealed copper wire, an upper moving contact spring, a lower moving contact spring, a mechanism spring and a lock catch reset spring, and the number of parts is up to 20. Because the mechanism is added with a moving contact and contact parameters thereof, the scheme design is complex, the assembly is difficult, the number of parts and the process steps are many, the production efficiency is low, and the quality control is difficult.
Disclosure of utility model
The present utility model is directed to a dual contact circuit breaker mechanism to solve the above-mentioned problems.
The double-contact circuit breaker mechanism comprises a circuit breaker shell, wherein a handle component is arranged at the upper part of an inner cavity of the circuit breaker shell, a lock catch component is connected with a bottom driving end of the handle component through a handle spring component, the lock catch component is of an arc-shaped arc structure, one end of the handle component, which is opposite to the handle spring component, is in dynamic contact with the inner wall of the lock catch component through a trip assembly, one end of the trip assembly, which is far away from the handle component, is connected with a moving contact integrated mechanism, the top end of the moving contact integrated mechanism is connected with the trip assembly through a trip pin shaft, an arc striking plate is arranged at the lower part of one side of the moving contact integrated mechanism and is positioned in the inner cavity of the circuit breaker shell, an arc extinguishing chamber is arranged at one end of the arc striking plate, which is far away from the moving contact integrated mechanism and is positioned in the circuit breaker shell, and an iron core component and a coil component which are sleeved together are arranged above the arc extinguishing chamber and in the circuit breaker shell.
Preferably, the moving contact integrated mechanism comprises an inverted Y-shaped double-fork rod piece, a annealed copper wire fixedly arranged on the outer wall of the Y-shaped double-fork rod piece, an upper moving contact and a lower moving contact.
Preferably, the jump buckle pin shaft is connected to the top end of the Y-shaped double fork rod piece in a penetrating way.
Preferably, the outer wall of the top end of the Y-shaped double-fork rod piece is provided with a connecting hanging hole, a connecting ring piece is hung in the connecting hanging hole, and a mechanism spring is connected to the connecting ring piece.
Preferably, a tension spring shaft is hung at the free end of the mechanism spring far away from the connecting ring piece, and the tension spring shaft is fixedly arranged on the inner wall of one side of the circuit breaker shell.
Preferably, the jump buckle component comprises a U-shaped rod sleeved at the bottom end of the handle component and a jump buckle connected to the free end of the U-shaped rod;
The free end of the jump buckle is connected with a Y-shaped double-fork rod piece through a jump buckle pin shaft, and the Y-shaped double-fork rod piece is connected into the circuit breaker shell through a main shaft.
Preferably, the back of the arc striking plate and the circuit breaker shell are provided with double-gold parts, and the bottom ends of the double-gold parts are connected with the circuit breaker shell through adjusting screws.
The double-contact breaker mechanism has the technical effects and advantages that the novel double-contact mechanism scheme is changed into a three-link mechanism, the double-contact breaker mechanism consists of an upper cover, a base, a handle spring, a U-shaped rod, a trip shaft pin, an indicating piece, a lock catch, a contact support, a main shaft, a tension spring shaft, a moving contact shaft pin, an upper moving contact, a lower moving contact, a annealed copper wire, an upper moving contact spring, a lower moving contact spring, a mechanism spring and a connecting piece (newly added), the mechanism spring and a lock catch reset spring, and the number of parts is 15, and is reduced by 5. And the laminated assembly mode is realized, the assembly process is simplified, the size control is centralized, the quality control is facilitated, the cost advantage is obvious, and the market competitiveness of the product is improved.
The two springs are integrated, and the handle restoring force is very large and the lock catch restoring force is very small by designing the length of each moment arm
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a schematic structural view of a connection state of a stationary touch panel according to the present utility model;
FIG. 3 is a schematic view showing the connection state structure of the latch member and the Y-shaped double fork rod member of the present utility model;
fig. 4 is a schematic structural view of a trip buckle assembly according to the present utility model.
1, A breaker shell; 2, a moving contact integrated mechanism, 3, a coil component, 4, an iron core component, 5, an arc extinguishing chamber, 6, an arc striking plate, 7, a double-metal component, 8, a clamping plate, 9, an adjusting screw, 10, a wire frame, 11, a static contact plate, 12, a mechanism spring, 13, a handle spring piece, 14, a handle component, 15, a locking component, 16, a jump fastener, 17, a jump fastener pin shaft, 18, a annealed copper wire, 19, an upper moving contact, 20, a lower moving contact, 21, a U-shaped rod, 22, a tension spring shaft, 23, a connecting ring piece, 24 and a main shaft.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
The utility model provides a double-contact breaker mechanism as shown in fig. 1-4, which comprises a breaker housing 1, wherein a clamping plate 8 is arranged on the bottom surface of the breaker housing 1, and a wire frame 10 is arranged in the inner cavity of the breaker housing 1 and above an adjusting screw 9.
The inner chamber upper portion of circuit breaker casing 1 has handle part 14, the bottom drive end of handle part 14 is connected with hasp part 15 through handle spring part 13, hasp part 15 is arc arch form structure, handle part 14 is the one end of handle spring part 13 dorsad is through jumping the inner wall dynamic contact of knot subassembly and hasp part 15, the one end that the knot subassembly was kept away from handle part 14 is connected with moving contact integrated mechanism 2, moving contact integrated design, with conventional 4 link mechanism shrink 3 link mechanism, cancel moving contact support, moving contact pivot, reduce the size chain, reduce part hole axle cooperation, the size is integrated to a part, batch contact parameter control is better.
In the structure that the handle spring piece 13 is slightly broken and L7 is provided with the lock catch and the jump buckle, the spring is required to meet the requirements of mechanism resetting only by meeting the requirement that the handle resetting force is very large and the lock catch resetting force is very small, and the two springs are integrated, so that the handle resetting force is very large and the lock catch resetting force is very small through the design of the length of each moment arm.
The handle spring part 13 is provided with a bump on the upper cover, so that the handle spring is separated from the lock catch in a closing state, the tripping force between the lock catch and the trip is not influenced by the spring, only one friction force is needed, the product tripping force is more stable, and when the handle spring part is in a separating state, the handle spring long arm can be contacted with the lock catch, and a restoring force can be provided for the handle spring long arm.
The top of the moving contact integrated mechanism 2 is connected with a trip assembly through a trip pin shaft 17, an arc striking plate 6 is arranged at the lower part of one side of the moving contact integrated mechanism 2 and positioned in the inner cavity of the circuit breaker shell 1, one end of the arc striking plate 6, which is far away from the moving contact integrated mechanism 2, is positioned in the circuit breaker shell 1 and is provided with an arc extinguishing chamber 5, and an iron core component 4 and a coil component 3 which are sleeved together are arranged above the arc extinguishing chamber 5 and positioned in the circuit breaker shell 1.
Specifically, the moving contact integrated mechanism 2 comprises an inverted Y-shaped double-fork rod piece, a annealed copper wire 18 fixedly installed on the outer wall of the Y-shaped double-fork rod piece, an upper moving contact 19 and a lower moving contact 20, and a trip pin shaft 17 is connected to the top end position of the Y-shaped double-fork rod piece in a penetrating manner.
Specifically, the outer wall of the top end of the Y-shaped double-fork rod piece is provided with a connecting hanging hole, a connecting ring piece 23 is hung in the connecting hanging hole, a mechanism spring 12 is connected to the connecting ring piece 23, and the mechanism spring 12 is connected with the ring piece 23, so that not only can the mechanism resetting force be provided, but also the contact terminal pressure can be provided for the upper moving contact 19 and the lower moving contact 20, and the upper contact spring and the lower contact spring are canceled.
Specifically, the free end of the mechanism spring 12 far away from the connecting ring member 23 is hung with a tension spring shaft 22, and the tension spring shaft 22 is fixedly installed on the inner wall of one side of the circuit breaker shell 1.
Specifically, the jump buckle assembly comprises a U-shaped rod 21 sleeved at the bottom end of the handle part 14 and a jump buckle 16 connected to the free end of the U-shaped rod 21;
The free end of the trip piece 16 is connected with a Y-shaped double-fork rod piece through a trip pin shaft 17, and the Y-shaped double-fork rod piece is connected into the breaker shell 1 through a main shaft 24.
Specifically, the back of the striking plate 6 and located in the breaker housing 1 are provided with double-gold parts 7, the bottom ends of the double-gold parts 7 are connected with the breaker housing 1 through adjusting screws 9, and the tail ends of the iron core parts 4 and located in the inner cavity of the breaker housing 1 are provided with static contact plates 11.
Specifically, in the double-contact breaker mechanism and the handle spring, in the micro-breaking L7 structure with the lock catch and the jump buckle, the spring has to meet the requirement of mechanism reset only by meeting the requirement of very large handle reset force and very small lock catch reset force, and is usually realized by two springs (the handle spring and the lock catch reset spring).
The novel scheme is that two springs are integrated, the handle restoring force is large and the lock catch restoring force is small through the design of the length of each moment arm, a mechanism spring and a connecting piece can provide mechanism restoring force, an upper moving contact and a lower moving contact, contact final pressure is provided, the upper contact spring and the lower contact spring are canceled, the handle spring is provided with a bump on an upper cover, the handle spring is separated from the lock catch in a closing state, the tripping force between the lock catch and the jump buckle is not influenced by the spring at the moment, only one friction force is needed, the product tripping force is more stable, when the handle spring is in a separating state, the handle spring long arm can be contacted with the lock catch, the restoring force can be provided for the handle spring, the moving contact is integrated, a conventional 4-bar mechanism is contracted to a 3-bar mechanism, a moving contact support and a moving contact shaft pin are canceled, a size chain is reduced, hole shaft matching of parts is reduced, the size is integrated to a part, and the parameter control of batch contacts is better.
The foregoing is only a preferred embodiment of the utility model, but the scope of the utility model is not limited thereto, and any person skilled in the art who is in the field of the utility model can apply equivalent substitution or modification to the technical solution and the inventive concept according to the utility model within the scope of the utility model.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420694525.9U CN222106580U (en) | 2024-04-07 | 2024-04-07 | Double-contact breaker mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420694525.9U CN222106580U (en) | 2024-04-07 | 2024-04-07 | Double-contact breaker mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222106580U true CN222106580U (en) | 2024-12-03 |
Family
ID=93616437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420694525.9U Active CN222106580U (en) | 2024-04-07 | 2024-04-07 | Double-contact breaker mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222106580U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119361383A (en) * | 2024-12-27 | 2025-01-24 | 苏州普兆新能源设备有限公司 | Double contact circuit breaker |
-
2024
- 2024-04-07 CN CN202420694525.9U patent/CN222106580U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119361383A (en) * | 2024-12-27 | 2025-01-24 | 苏州普兆新能源设备有限公司 | Double contact circuit breaker |
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