CN220341146U - Circuit breaker with residual current protection function - Google Patents
Circuit breaker with residual current protection function Download PDFInfo
- Publication number
- CN220341146U CN220341146U CN202322061938.1U CN202322061938U CN220341146U CN 220341146 U CN220341146 U CN 220341146U CN 202322061938 U CN202322061938 U CN 202322061938U CN 220341146 U CN220341146 U CN 220341146U
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- upper cover
- base
- residual current
- circuit breaker
- current protection
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- 238000010079 rubber tapping Methods 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000007 visual effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000003578 releasing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of circuit breakers, in particular to a circuit breaker with a residual current protection function, which comprises a base and an upper cover detachably arranged above the base, wherein an actuating mechanism is arranged in the middle of the inner side of the upper cover, a tripping mechanism for driving the actuating mechanism to trip is arranged on the left side of the actuating mechanism in the upper cover, and a conductive mechanism for establishing circuit connection is arranged below the tripping mechanism in the middle of the base. According to the utility model, the original breaker structure is scientifically and reasonably improved, and the breaker with the residual current protection function is integrally composed of an upper cover, a base, an action mechanism, a tripping mechanism, a conducting mechanism and a wiring mechanism, so that the structural layout of the breaker is more modularized, compact, reasonable and stable, the working procedure, the workload, the manufacturing cost and the difficulty of the actual assembly operation of the breaker are effectively reduced, and the assembly operation of the breaker is promoted.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to a circuit breaker with a residual current protection function.
Background
The residual current operated circuit breaker can cut off the fault power supply rapidly in a very short time, so that the safety of personnel and electric equipment is protected. The current action circuit breaker is suitable for alternating current 50Hz or 60Hz, rated voltage monopole two lines, two poles 230V, three-level/three-level four lines and four-level 400V, and rated current is in a line from 60A, when the personal electric shock or the leakage current of a power grid exceeds a specified value, the residual current action circuit breaker can rapidly cut off a fault power supply in an extremely short time, and the safety of the personal and the electric equipment is protected.
The circuit breaker with residual current protection function is used in the market at present, the internal structure layout is complex, the number of components is numerous, and the components are mutually independent, so that the required personnel investment is more when the circuit breaker is assembled in the earlier stage, the set assembly procedure is increased, and the manufacturing cost and difficulty of the circuit breaker are increased.
Therefore, it is important to design and manufacture a circuit breaker with residual current protection function, which has simple and stable structural layout, higher integration level and convenient early assembly.
Disclosure of Invention
The utility model aims at: in order to solve the problems of the traditional circuit breaker with the residual current protection function that the internal structure layout is complex, the number of components is large, and the cost and the difficulty for manufacturing the circuit breaker are large, the circuit breaker with the residual current protection function is provided.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a circuit breaker with residual current protection function, includes base and demountable installation upper cover in the base top, the inboard middle part of upper cover is provided with actuating mechanism, the inside of upper cover is located actuating mechanism's left side and is provided with the tripping device who drives actuating mechanism tripping action, the middle part of base is located the below of tripping device and is provided with the conductive mechanism who establishes circuit connection, all be provided with the wiring mechanism who links to each other with external circuit on the both sides end of base.
As a further description of the above technical solution:
the action mechanism comprises a frame which is detachably arranged on the inner side of the upper cover and is positioned above the base through self-tapping screws, an operating handle which is rotatably arranged on the frame through a handle connecting rod and penetrates through the upper cover, a rotating shaft which is rotatably arranged at the right end of the frame through a first contact spring and a second contact spring, a rotating shaft pressure spring which is arranged between the rotating shaft and the lower end of the frame, an indicating part which is arranged in the middle of the upper end of the frame and a hand contact part which is arranged on the right side of the upper end of the frame and is positioned above the rotating shaft.
As a further description of the above technical solution:
the indicating part comprises an indicating piece which is rotatably arranged in the middle of the upper end of the stand and synchronously acts with the operating handle, a stop piece which is integrally fixed on the stand, an indicating spring arranged between the stop piece and the indicating piece and a visual window which is arranged on the upper cover and is positioned above the indicating piece.
As a further description of the above technical solution:
the hand touch part comprises a hand touch button movably mounted on the right side of the upper end of the frame and penetrating through the upper cover, and a button spring mounted between the hand touch button and the rotating shaft.
As a further description of the above technical solution:
the tripping mechanism comprises a tripping device which is arranged on the left side inside the upper cover and is cooperated with the action mechanism, a circuit board which is arranged at the lower end of the tripping device and is electrically connected with the tripping device, and a heat shrinking tube which is sleeved outside the circuit board.
As a further description of the above technical solution:
the wiring mechanism comprises wiring buckles symmetrically fixed at the inner sides of openings at the left end and the right end of the base, fastening screws installed at the upper ends of the wiring buckles in a screwed mode and fixed contacts below the wiring buckles at the right end.
As a further description of the above technical solution:
the electric conduction mechanism comprises an electromagnetic coil arranged in the middle of the base, a movable contact piece arranged at the right end of the electromagnetic coil and fixedly connected with the rotating shaft, a wire connecting buckle arranged at the left end of the electromagnetic coil and electrically connected with the left side of the electromagnetic coil, and a resistor connected between the rack and the wire connecting buckle.
As a further description of the above technical solution:
the buckles capable of sliding transversely inwards are movably arranged on two sides of the lower end of the base.
As a further description of the above technical solution:
the inside of the base is filled with an insulating sheet between the electromagnetic coil and the wiring buckle.
As a further description of the above technical solution:
the upper cover is arranged on the base through a self-tapping screw, and the sealing plug is arranged above the self-tapping screw at the upper end of the upper cover.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
according to the utility model, the original breaker structure is scientifically and reasonably improved, the breaker with the residual current protection function is integrally composed of an upper cover, a base, an action mechanism, a tripping mechanism, a conducting mechanism and a wiring mechanism, and the action mechanism and the tripping mechanism are integrally integrated on the frame through arranging the frame on the inner side of the upper cover, so that the volume between the action mechanism and the tripping mechanism is smaller, the running continuity is more stable, and the conducting mechanism is arranged and connected between the frame and the wiring mechanism.
Drawings
Fig. 1 is a schematic diagram of a circuit breaker with residual current protection according to the present utility model;
fig. 2 is a perspective exploded view of a circuit breaker with a residual current protection function according to the present utility model;
FIG. 3 is a schematic rear elevation view in longitudinal section of the present utility model;
FIG. 4 is a schematic view in front view, partially broken away, of the present utility model;
FIG. 5 is a schematic view of the partial structure of the direction B in FIG. 4;
fig. 6 is a schematic top view of the present utility model.
Legend description:
1. an upper cover; 2. a hand touch button; 3. a button spring; 4. self-tapping screw; 5. a wiring buckle; 501. fastening a screw; 6. a stationary contact; 7. a stopper; 8. an indication spring; 9. an indicator; 10. a first contact spring; 11. a second contact spring; 12. a rotating shaft; 13. a trip; 14. an electromagnetic coil; 141. a movable contact; 142. connecting wire buckles; 15. a base; 16. a buckle; 17. a heat shrinkage tube; 18. a circuit board; 19. a rotating shaft pressure spring; 20. a frame; 21. a handle link; 22. an insulating sheet; 23. a sealing plug; 24. a resistor; 25. and operating the handle.
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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-6, the present utility model provides a technical solution: the utility model provides a circuit breaker with residual current protection function, includes base 15 and demountable installation upper cover 1 in base 15 top, and upper cover 1's inboard middle part is provided with actuating mechanism, and upper cover 1's inside is located actuating mechanism's left side and is provided with the tripping device who drives actuating mechanism tripping action, and base 15's middle part is located the below of tripping device and is provided with the conductive mechanism who establishes circuit connection, all is provided with the wiring mechanism who links to each other with external circuit on base 15's both sides end.
Specifically, as shown in fig. 2, 3, 4 and 5, the actuating mechanism includes a frame 20 detachably mounted on the inner side of the upper cover 1 by self-tapping screws 4 and located above the base 15, an operation handle 25 rotatably mounted on the frame 20 by a handle link 21 and penetrating the upper cover 1, a rotary shaft 12 rotatably mounted on the right end of the frame 20 by a first contact spring 10 and a second contact spring 11, a rotary shaft compression spring 19 mounted between the rotary shaft 12 and the lower end of the frame 20, an indication portion provided in the middle of the upper end of the frame 20, and a hand contact portion provided on the right side of the upper end of the frame 20 and located above the rotary shaft 12.
The indication part comprises an indication piece 9 which is rotatably arranged in the middle of the upper end of the stand 20 and synchronously acts with the operating handle 25, a stop piece 7 which is integrally fixed on the stand 20, an indication spring 8 which is arranged between the stop piece 7 and the indication piece 9, and a visual window which is arranged on the upper cover 1 and is positioned above the indication piece 9, and an operator can observe the state of the indication piece 9 through the visual window, so that the working state of the circuit breaker is known.
The hand touch part comprises a hand touch button 2 movably mounted on the right side of the upper end of the frame 20 and penetrating through the upper cover 1, and a button spring 3 mounted between the hand touch button 2 and the rotating shaft 12, when the hand touch button 2 is pressed in the country, the rotating shaft 12 can be driven to rotate, so that the release 13 can perform a releasing action.
Specifically, as shown in fig. 2 and 4, the trip mechanism includes a trip 13 installed at the left side inside the upper cover 1 and working cooperatively with the actuating mechanism, a circuit board 18 installed at the lower end of the trip 13 and electrically connected to the trip 13, and a heat shrinkage tube 17 sleeved outside the circuit board 18, where the heat shrinkage tube 17 can wrap the circuit board 18 for protection, so as to perform dust-proof and waterproof protection treatment on the circuit board 18.
Specifically, as shown in fig. 1, 2, 3 and 6, the wiring mechanism includes a wiring buckle 5 symmetrically fixed at the inner sides of the openings at the left end and the right end of the base 15, a fastening screw 501 installed at the upper end of the wiring buckle 5 through screwing, and a fixed contact 6 fixed below the wiring buckle 5 at the right end, so that electrical connection is conveniently established with the conductive mechanism.
Specifically, as shown in fig. 2 and 3, the conductive mechanism includes an electromagnetic coil 14 installed in the middle of the base 15, a movable contact 141 installed at the right end of the electromagnetic coil 14 and fixedly connected with the rotating shaft 12, a wire connecting buckle 142 installed at the left end of the electromagnetic coil 14 and electrically connected with the left side setting wire connecting buckle 5, and a resistor 24 connected between the frame 20 and the wire connecting buckle 142, so that the generated residual current can be blocked and eliminated, the generation of dangerous current is prevented, and when the rotating shaft 12 rotates, the movable contact 141 can be driven to contact the fixed contact 6 or be far away from the fixed contact 6, thereby realizing the opening and closing operations of the internal circuit of the circuit breaker.
Specifically, as shown in fig. 1-6, two sides of the lower end of the base 15 are movably provided with a buckle 16 capable of sliding transversely inwards, so that the base 15 can be elastically locked inwards to the mounting rib of the electric power cabinet (box).
The inside of the base 15 is filled with the insulating sheet 22 between the electromagnetic coil 14 and the wiring buckle 5, so that the electromagnetic coil 14 and the wiring buckle 5 can be insulated, the occurrence of short circuit abnormality caused by contact between circuits is prevented, and the stability and the safety of the operation of the circuit breaker can be improved.
The upper cover 1 is installed on the base 15 through the self-tapping screw 4, the sealing plug 23 is installed above the self-tapping screw 4 at the upper end of the upper cover 1, and the gap between the upper cover 1 and the self-tapping screw 4 can be actively sealed, so that external dust and liquid are prevented from entering the upper cover 1, and the protective performance of the circuit breaker is improved.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (10)
1. The utility model provides a circuit breaker with residual current protection function, includes base (15) and detachable mounting upper cover (1) in base (15) top, its characterized in that, the inboard middle part of upper cover (1) is provided with actuating mechanism, the inside of upper cover (1) is located actuating mechanism's left side and is provided with the tripping device who drives actuating mechanism and trip the action, the middle part of base (15) is located the below of tripping device and is provided with the conductive mechanism who establishes circuit connection, all be provided with the wiring mechanism who links to each other with external circuit on the both sides end of base (15).
2. The circuit breaker with residual current protection function according to claim 1, wherein the actuating mechanism comprises a frame (20) detachably mounted on the inner side of the upper cover (1) and located above the base (15) through self-tapping screws (4), an operating handle (25) rotatably mounted on the frame (20) through the upper cover (1) through a handle connecting rod (21), a rotating shaft (12) rotatably mounted on the right end of the frame (20) through a first contact spring (10) and a second contact spring (11), a rotating shaft pressure spring (19) mounted between the rotating shaft (12) and the lower end of the frame (20), an indicating part arranged in the middle of the upper end of the frame (20), and a hand contact part arranged on the right side of the upper end of the frame (20) and located above the rotating shaft (12).
3. A circuit breaker with residual current protection function according to claim 2, characterized in that the indication part comprises an indication member (9) rotatably mounted in the middle of the upper end of the frame (20) and operated in synchronization with the operation handle (25), a stopper (7) integrally fixed on the frame (20), an indication spring (8) mounted between the stopper (7) and the indication member (9), and a visual window opened on the upper cover (1) and located above the indication member (9).
4. A circuit breaker with residual current protection according to claim 2, characterized in that the hand contact comprises a hand contact button (2) movably mounted on the right side of the upper end of the frame (20) and penetrating the upper cover (1) and a button spring (3) mounted between the hand contact button (2) and the rotary shaft (12).
5. The circuit breaker with the residual current protection function according to claim 1, wherein the tripping mechanism comprises a tripping device (13) which is arranged on the left side inside the upper cover (1) and is cooperated with the action mechanism, a circuit board (18) which is arranged at the lower end of the tripping device (13) and is electrically connected with the tripping device (13), and a heat shrinkage tube (17) which is sleeved outside the circuit board (18).
6. The circuit breaker with residual current protection function according to claim 1, wherein the wiring mechanism comprises a wiring buckle (5) symmetrically fixed at the inner sides of the openings of the left end and the right end of the base (15), a fastening screw (501) installed at the upper end of the wiring buckle (5) through screwing, and a fixed contact (6) fixed below the wiring buckle (5) arranged at the right end.
7. The circuit breaker with residual current protection function according to claim 1, wherein the conductive mechanism comprises an electromagnetic coil (14) installed in the middle of the base (15), a movable contact piece (141) installed at the right end of the electromagnetic coil (14) and fixedly connected with the rotating shaft (12), a wire connecting buckle (142) installed at the left end of the electromagnetic coil (14) and electrically connected with the left-side setting wire buckle (5), and a resistor (24) connected between the frame (20) and the wire connecting buckle (142).
8. A circuit breaker with residual current protection according to claim 1, characterized in that the two sides of the lower end of the base (15) are movably provided with a clasp (16) which can slide inwards in the lateral direction.
9. A circuit breaker with residual current protection according to claim 8, characterized in that the inside of the base (15) is filled with insulating sheets (22) between the electromagnetic coil (14) and the terminal buckle (5).
10. The circuit breaker with the residual current protection function according to claim 1, wherein the upper cover (1) is installed on the base (15) through a self-tapping screw (4), and a sealing plug (23) is installed above the self-tapping screw (4) at the upper end of the upper cover (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322061938.1U CN220341146U (en) | 2023-08-02 | 2023-08-02 | Circuit breaker with residual current protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322061938.1U CN220341146U (en) | 2023-08-02 | 2023-08-02 | Circuit breaker with residual current protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220341146U true CN220341146U (en) | 2024-01-12 |
Family
ID=89445988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322061938.1U Active CN220341146U (en) | 2023-08-02 | 2023-08-02 | Circuit breaker with residual current protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220341146U (en) |
-
2023
- 2023-08-02 CN CN202322061938.1U patent/CN220341146U/en active Active
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| GR01 | Patent grant |