CN213277967U

CN213277967U - Quick plug-pull type circuit breaker

Info

Publication number: CN213277967U
Application number: CN202022648813.5U
Authority: CN
Inventors: 陈又丰; 史蒙云; 李苏华; 李�权; 孙金良; 张建兴
Original assignee: Jiangsu Mite Internet Of Things Technology Co ltd
Current assignee: Jiangsu Mite Internet Of Things Technology Co ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-05-25
Anticipated expiration: 2030-11-16

Abstract

The utility model discloses a quick plug-in circuit breaker, the circuit breaker with control module plug-in connection, just control module adopts three-phase power supply and three-phase PLC communication, the connection base through plug-in components with control module plug-in connection, just the connection base through the direction subassembly right control module connection direction, the connection base through spacing subassembly right control module spacing, just control module sets up in the connection base top through fixed subassembly, the collection daughter board is connected with the control mainboard through the interface daughter board, the utility model discloses no external wiring, and circuit breaker inside adopts PCB connecting wire to replace traditional cable body mode, fundamentally solves the problem of wire body exposure, prevents the emergence personnel electric shock potential safety hazard, and installs the interface daughter board additional at the side of collection daughter board, and provides quick plug-in interface a on the interface daughter board, the control module can be replaced in a plug-in mode without power outage, and maintenance is facilitated.

Description

Quick plug-pull type circuit breaker

Technical Field

The utility model belongs to the technical field of the electric power thing networking, concretely relates to pull out plug-in circuit breaker fast.

Background

At present, many important power supply occasions are controlled by a circuit breaker to open and close a circuit.

However, the conventional circuit breaker can only provide overload and short-circuit protection, does not have sensing and communication capabilities such as node voltage, current temperature, phase, switching state and the like, and can expand functions of the conventional circuit breaker in a manner of adding an external module in order to adapt to the development of a smart grid.

However, the manner of adding the external module may cause the following problems:

1. the strong current wire is required to be connected with the external module in an external wiring mode, the wire body is exposed, and potential safety hazards of electric shock of personnel exist;

2. the service life and reliability of electronic components in the external module are usually lower than those of the circuit breaker, so that the service life is relatively short, when the external module is replaced, the main circuit of the circuit breaker must be powered off, then the external module can be replaced without electrification, power failure maintenance is needed, the continuity of power supply of other lines is influenced, unnecessary power failure is caused, and unnecessary economic loss is brought;

3. strong current and weak current wires inside and outside the circuit breaker are entangled together, so that the electrical isolation strength between strong current and weak current is insufficient;

4. the external module usually adopts single-phase power supply and single-phase PLC mode communication, and when the phase lack appears, external module power supply and communication are all interrupted, lead to the node to lack the looks trouble and can not accurately report an emergency and ask for help or increased vigilance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a plug-in circuit breaker fast to solve foretell technical problem.

In order to achieve the above object, the utility model provides a following technical scheme pull out plug-in circuit breaker fast, including circuit breaker and control module, wherein:

the circuit breaker is connected with the control module in a plug-in mode, and the control module adopts three-phase power supply and three-phase PLC communication;

the circuit breaker comprises a shell, wherein a connecting base is arranged on the side edge of the shell, an acquisition daughter board is arranged in the shell, an interface daughter board is arranged in the connecting base, and the acquisition daughter board is connected with the interface daughter board through a connector;

the control module comprises a shell, and a control mainboard is arranged in the shell;

the connecting base is connected with the control module in a plugging and unplugging manner through a plugging and unplugging assembly, and the connecting base is used for connecting and guiding the control module through a guiding assembly;

the connecting base limits the control module through a limiting assembly, and the control module is arranged at the top of the connecting base through a fixing assembly;

the acquisition daughter board is connected with the control mainboard through the interface daughter board;

the interface daughter board is provided with a strong current interface and a weak current interface, and the strong current interface and the weak current interface are connected with the acquisition daughter board through a PCB connecting wire.

Preferably, the plugging component comprises a connector a arranged on the connection base, a plug interface a arranged on the interface daughter board, a connector b arranged on the housing, and a plug interface b arranged on the control mainboard, wherein the connector a and the plug interface a are arranged correspondingly to each other, the connector b and the plug interface b are arranged correspondingly to each other, the plug interface a and the plug interface b are arranged correspondingly to each other, and the plug interface a and the plug interface b can be plugged.

Preferably, the direction subassembly include, set up in the guide rail of casing lateral wall and set up in the guide block of shell lateral wall, the guide rail both sides correspond the setting, the guide rail sets up towards connection base, the guide rail corresponds the setting each other with the guide block, just the guide rail is mutually supported with the guide block, the guide rail is rectangular sliding guide, just the guide block can be in the guide rail longitudinal sliding.

Preferably, the limiting assembly comprises a limiting groove arranged on the side wall of the shell and a limiting block arranged on the side wall of the shell, a limiting part is arranged in the limiting groove, two sides of the limiting part are correspondingly arranged on the inner wall of the limiting groove, a groove is arranged on the limiting part, a bump is arranged on the limiting block, the groove and the bump are correspondingly arranged, the groove and the bump are mutually clamped, and the limiting part can limit the degrees of freedom of movement or rotation of the limiting block in other five directions except the plugging direction of the control module.

Preferably, the fixing component comprises a fixing groove fixedly arranged at the top of the shell and a fixing block arranged on the side wall of the shell, the fixing groove and the fixing block are arranged in a corresponding mode, the fixing block can be arranged in the fixing groove, a fixing hole a is formed in the fixing groove, a fixing hole b is formed in the fixing block, and the fixing hole a and the fixing hole b are arranged in a corresponding mode.

Preferably, the strong current interface is connected with one end of the connector through a strong current PCB connecting wire, the other end of the connector is connected with the acquisition daughter board through a strong current PCB connecting wire, the weak current interface is connected with one end of the connector through a weak current PCB connecting wire, and the other end of the connector is connected with the acquisition daughter board through a weak current PCB connecting wire.

Preferably, isolation regions are arranged in the middle of the interface daughter board and the acquisition daughter board.

Preferably, the bottom of the circuit breaker is detachably provided with a bottom cover.

The technical effect and the advantage of the utility model, this plug-in circuit breaker pulls out fast:

1. the circuit breaker of the utility model has no external wiring, and the circuit breaker adopts the PCB connecting wire to replace the traditional cable pulling mode, thereby fundamentally solving the problem of wire body exposure and preventing the potential safety hazard of electric shock of personnel;

2. the acquisition daughter board is arranged in the circuit breaker, the interface daughter board is additionally arranged on the side edge of the acquisition daughter board, and the quick plug-in interface a is provided on the interface daughter board, so that the control module can be replaced in a plug-in mode without power failure, and the circuit breaker is convenient to maintain;

3. the utility model discloses the circuit breaker does not have the outside to walk the line, and adopts the PCB connecting wire to replace traditional cable pulling mode inside the circuit breaker, fundamentally solves strong and weak current cable intertwine problem to set up the isolation region in the middle part of connector and collection daughter board, can effectively improve electrical isolation intensity, further solve strong and weak current cable intertwine problem;

4. the utility model discloses control module adopts three-phase power supply and three-phase PLC communication, and any looks breaks down, still can normally work, and can accurately make the protection action and send fault information to the control mainboard, avoids adopting single-phase power supply and single-phase PLC communication, and when the phase place of power supply or communication breaks down, the control module power supply is all interrupted with the communication, leads to the node to lack the looks trouble and can not accurately report an emergency and ask for help or increased vigilance.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is an exploded view of the present invention;

fig. 4 is a schematic diagram of a specific structure of the circuit breaker of the present invention;

fig. 5 is a schematic diagram of a specific structure of the control module of the present invention;

fig. 6 is a schematic diagram of the specific routing of the PCB connecting line of the present invention.

In the figure: 1. a circuit breaker; 2. a control module; 3. pulling and inserting the component; 4. a guide assembly; 5. a limiting component; 6. a fixing assembly; 7. PCB connecting wires; 8. an isolation region;

11. a housing; 12. a connection base; 13. collecting the daughter boards; 14. an interface daughter board; 15. a connector; 16. a bottom cover;

141. a strong electrical interface; 142. a weak current interface;

21. a housing; 22. a control main board;

31. a connecting port a; 32. the opposite insertion interface a; 33. a connecting port b; 34. the plug-in interface b;

41. a guide rail; 42. a guide block;

51. a limiting groove; 52. a limiting block; 53. a limiting member; 54. a groove; 55. a bump;

61. fixing grooves; 62. a fixed block; 63. a fixing hole a; 64. a fixing hole b;

71. a strong current PCB connecting wire; 72. weak current PCB connecting wire.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 6 of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a pull out formula of inserting circuit breaker fast as shown in fig. 1-6, including circuit breaker 1 and control module 2, wherein:

breaker 1 with control module 2 is pulled out and is inserted and connect, and breaker 1 and control module 2 adopt the integral type design, can promote control module 2's change efficiency greatly, can not have a power failure and can change control module 2 through pulling out the mode of inserting, convenient maintenance.

Control module 2 adopts three-phase power supply and three-phase PLC communication, breaks down in any looks, still can normally work, and can accurately make the protection action and send fault information to control mainboard 22, avoids adopting single-phase power supply and single-phase PLC communication, and when the phase place of power supply or communication breaks down, control module 2 power supply and communication are all interrupted, lead to the node to lack the looks trouble and can not accurately report an emergency and ask for help or increased vigilance, so, the utility model discloses the product compares that traditional scheme has higher reliability, robustness.

The circuit breaker 1 comprises a shell 11, wherein the shell 11 is a plastic shell 21.

The shell 11 is provided with a connection base 12 on a side, and the connection base 12 is used for bearing the control module 2.

A collecting daughter board 13 is arranged inside the shell 11, an interface daughter board 14 is arranged inside the connecting base 12, the acquisition daughter board 13 is connected with the interface daughter board 14 through a connector 15, the acquisition daughter board 13 has the functions of voltage acquisition, current acquisition, phase acquisition and temperature acquisition, the acquisition daughter board 13 is provided with a storage unit, which can store the correction parameters of each acquisition function, and the acquisition daughter board 13 can provide high-precision metering function, the acquisition daughter board 13 is corrected before the circuit breaker 1 leaves the factory, and the correction parameters are stored in the storage unit on the acquisition daughter board 13, because the acquisition daughter board 13 is arranged in the shell 11 and is bound with the body of the circuit breaker 1, when the control module 2 needs to be replaced, the acquisition daughter board 13 cannot be replaced, therefore, the control module 2 is prevented from being replaced, the verification parameters are lost, and the acquisition precision is reduced.

Control module 2 includes, shell 21, and shell 21 adopts plastic casing 21, just shell 21 is inside to be provided with control mainboard 22, and control mainboard 22 can monitor 1 internal voltage of circuit breaker, electric current, phase place, contact temperature, internal environment temperature, on-off state (separating brake, combined floodgate, tripping) carries out the all-round safety protection to circuit breaker 1.

The connection base 12 is connected with the control module 2 through the plug component 3, and the connection base 12 is connected and guided by the control module 2 through the guide component 4, so that the guide control module 2 can be installed.

Connection base 12 is right through spacing subassembly 5 control module 2 carries on spacingly, just control module 2 sets up in connection base 12 top through fixed subassembly 6, and fixed subassembly 6 can make control module 2 fixed with connection base 12, prevents that control module 2 from breaking away from connection base 12.

The acquisition daughter board 13 is connected with the control mainboard 22 through the interface daughter board 14, so as to complete the conduction of the whole circuit.

The interface daughter board 14 is provided with a strong current interface 141 and a weak current interface 142, the strong current interface 141 and the weak current interface 142 are connected with the acquisition daughter board 13 through a PCB connecting wire 7, and the PCB connecting wire 7 is adopted to replace a traditional cable pulling mode, so that the problem of wire body exposure is fundamentally solved, and the potential safety hazard of electric shock of personnel is prevented.

Specifically, the pluggable module 3 includes a connection port a31 disposed on the connection base 12, a pluggable interface a32 disposed on the interface daughter board 14, a connection port b33 disposed on the housing 21, and a pluggable interface b34 disposed on the control motherboard 22, where the pluggable interface a32 may be a pin header, the pluggable interface b34 may be a pin header, and the pin header are plugged to complete the plugging of the pluggable interface a32 and the pluggable interface b 34.

The connector a31 and the opposite plug interface a32 are correspondingly arranged, the connector b33 and the opposite plug interface b34 are correspondingly arranged, the opposite plug interface a32 and the opposite plug interface b34 are correspondingly arranged, the opposite plug interface a32 and the opposite plug interface b34 can be connected in a plug-and-pull mode, the opposite plug interface a32 and the opposite plug interface b34 are correspondingly arranged by utilizing the guide assembly 4, then the opposite plug interface a32 and the opposite plug interface b34 can be plugged, the opposite plug interface a32 is in contact with and conducted with the opposite plug interface b34, the acquisition daughter board 13 can be connected with the control main board 22 through the interface daughter board 14, the conduction of the whole circuit is completed, and the control module 2 is connected with the circuit breaker 1.

Specifically, direction subassembly 4 includes, set up in the guide rail 41 of casing 11 lateral wall and set up in the guide block 42 of shell 21 lateral wall, the corresponding setting in guide rail 41 both sides, guide rail 41 sets up towards connection base 12, guide rail 41 corresponds the setting with guide block 42 each other, just guide rail 41 and guide block 42 cooperate each other, guide rail 41 is rectangular sliding guide 41, just guide block 42 can be in guide rail 41 longitudinal sliding, and guide rail 41 and guide block 42 can provide two functions of direction and location for the installation location of control module 2 and circuit breaker 1, and it provides necessary position accuracy and direction accuracy's guidance quality for control module 2's plug operation.

Specifically, the limiting component 5 includes a limiting groove 51 disposed on the sidewall of the housing 11 and a limiting block 52 disposed on the sidewall of the housing 21, a limiting part 53 is disposed in the limiting groove 51, two sides of the limiting part 53 are correspondingly disposed on the inner wall of the limiting groove 51, a groove 54 is disposed on the limiting part 53, a protrusion 55 is disposed on the limiting block 52, the groove 54 and the protrusion 55 are correspondingly disposed, and the groove 54 and the protrusion 55 are engaged with each other, the limiting part 53 can limit the movement or rotational freedom of the limiting block 52 in other five directions except the plugging direction of the control module 2, the limiting groove 51 and the limiting part 53 are integrally formed, and the limiting block 52 is integrally formed, and the structural strength of the limiting groove 51, the limiting part 53 and the limiting block 52 can be greatly increased through the integrally formed structure.

When the limiting part 53 and the limiting part 52 are engaged with each other, the freedom degree of movement or rotation in other five directions (i.e. X direction movement, Z direction movement, rotation around X axis, rotation around Y axis and rotation around Z axis) except for the plugging and unplugging direction when the control module 2 is mounted on the connection base 12 can be limited, and due to the existence of the guide component 4, the limiting part 53 and the limiting part 52 can be quickly engaged and limited, so that the control module 2 can be limited after being positioned in the plugging and unplugging mounting process, the plugging and unplugging mounting process of the control module 2 is quick, no extra action is required to be added, the time required for replacing the control module 2 is saved, and the quick replacing operation is realized.

Specifically, fixed subassembly 6 includes, fixed the setting in the fixed slot 61 at casing 11 top and set up in the fixed block 62 of shell 21 lateral wall, fixed slot 61 with fixed block 62 corresponds the setting each other, just fixed block 62 can set up in fixed slot 61, be provided with fixed orifices a63 on the fixed slot 61, be provided with fixed orifices b64 on the fixed block 62, just fixed orifices a63 with fixed orifices b64 corresponds the setting each other, and the accessible uses the long-foot screw to pass fixed orifices b64 and fixed orifices a63 successively, can stably fix fixed block 62 in fixed slot 61 through screwing the long-foot screw, prevents that control module 2 from breaking away from connection base 12 under the influence of external force.

Specifically, the strong current interface 141 is connected with one end of the connector 15 through a strong current PCB connecting line 71, the other end of the connector 15 is connected with the acquisition daughter board 13 through the strong current PCB connecting line 71, the weak current interface 142 is connected with one end of the connector 15 through a weak current PCB connecting line 72, and the other end of the connector 15 is connected with the acquisition daughter board 13 through the weak current PCB connecting line 72, so that the problem that a line body is exposed can be fundamentally solved, the circuit breaker 1 is free of external wiring, and the potential safety hazard of electric shock of personnel is prevented.

Specifically, the isolation region 8 is arranged in the middle of the interface daughter board 14 and the acquisition daughter board 13, the isolation region 8 can further improve the electrical isolation strength, and the problem of cable entanglement of strong and weak currents is further solved.

Specifically, the bottom of the circuit breaker 1 can be dismantled and be provided with the bottom 16, and the bottom 16 can seal the bottom of the circuit breaker 1, prevents that dust and outside debris from causing the influence to the inside electronic components of circuit breaker 1, interface daughter board 14 and collection daughter board 13 in getting into the circuit breaker 1.

The utility model discloses in, the top of circuit breaker 1 can be dismantled and be provided with the top cap, and the top cap can adopt the mode of screw connection to dismantle and set up in circuit breaker 1 top, can prevent in dust and outside debris get into circuit breaker 1.

The working principle is as follows: this control module 2 of quick plug-in circuit breaker changes the operation, specifically includes following step:

1. inserting a screwdriver into the fixing groove 61, and rotating the long-leg screw to separate the long-leg screw from the fixing hole b64 and the fixing hole a 63;

2. pulling the control module 2 upwards to pull out the old control module 2 easily, so that the old control module 2 is separated from the connecting base 12 on the side edge of the shell 11;

3. inserting the guide block 42 on the new control module 2 into the guide rail 41 on the side wall of the housing 11, and pressing the new control module 2 downward to make the plug-in interface b34 arranged on the new control module 2 plug-in with the plug-in interface a32 arranged on the connection base 12, when the plug-in interface b34 and the plug-in interface a32 are inserted in place, the limit block 52 arranged on the side wall of the housing 21 of the new control module 2 is mutually clamped with the limit block 53 arranged on the side wall of the housing 11 of the circuit breaker 1, so as to limit the new control module 2;

4. the control module 2 is fixedly disposed on the connection base 12 by passing a long-leg screw through the fixing hole b64 and the fixing hole a63 in sequence and tightening the screws with a screwdriver to stably fix the fixing block 62 in the fixing groove 61.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a pull out fast and insert formula circuit breaker, includes circuit breaker (1) and control module (2), its characterized in that:

the circuit breaker (1) is connected with the control module (2) in a plug-in mode, and the control module (2) adopts three-phase power supply and three-phase PLC communication;

the circuit breaker (1) comprises a shell (11), wherein a connecting base (12) is arranged on the side edge of the shell (11), an acquisition daughter board (13) is arranged inside the shell (11), an interface daughter board (14) is arranged inside the connecting base (12), and the acquisition daughter board (13) is connected with the interface daughter board (14) through a connector (15);

the control module (2) comprises a shell (21), and a control main board (22) is arranged in the shell (21);

the connecting base (12) is connected with the control module (2) in a plugging and unplugging manner through a plugging and unplugging assembly (3), and the connecting base (12) is used for connecting and guiding the control module (2) through a guiding assembly (4);

the connecting base (12) limits the control module (2) through a limiting component (5), and the control module (2) is arranged at the top of the connecting base (12) through a fixing component (6);

the acquisition daughter board (13) is connected with the control main board (22) through an interface daughter board (14);

the interface sub-board (14) is provided with a strong current interface (141) and a weak current interface (142), and the strong current interface (141) and the weak current interface (142) are connected with the acquisition sub-board (13) through a PCB connecting wire (7).

2. The quick plug-in circuit breaker according to claim 1, characterized in that: the plug-in component (3) comprises a connecting port a (31) arranged on the connecting base (12), a plug-in interface a (32) arranged on the interface daughter board (14), a connecting port b (33) arranged on the shell (21) and a plug-in interface b (34) arranged on the control mainboard (22);

the connecting port a (31) and the plug-in port a (32) are arranged correspondingly to each other, and the connecting port b (33) and the plug-in port b (34) are arranged correspondingly to each other;

the plug interface a (32) and the plug interface b (34) are arranged correspondingly, and the plug interface a (32) and the plug interface b (34) can be connected in a plug-and-pull mode.

3. The quick plug-in circuit breaker according to claim 1, characterized in that: the guide assembly (4) comprises a guide rail (41) arranged on the side wall of the shell (11) and a guide block (42) arranged on the side wall of the shell (21);

the two sides of the guide rail (41) are correspondingly arranged, the guide rail (41) is arranged towards the connecting base (12), the guide rail (41) and the guide block (42) are correspondingly arranged, and the guide rail (41) and the guide block (42) are matched with each other;

the guide rail (41) is a rectangular sliding guide rail (41), and the guide block (42) can longitudinally slide in the guide rail (41).

4. The quick plug-in circuit breaker according to claim 1, wherein the limiting component (5) comprises a limiting groove (51) disposed on the side wall of the housing (11) and a limiting block (52) disposed on the side wall of the casing (21);

a limiting piece (53) is arranged in the limiting groove (51), and two sides of the limiting piece (53) are correspondingly arranged on the inner wall of the limiting groove (51);

a groove (54) is formed in the limiting piece (53), a bump (55) is formed in the limiting piece (52), the groove (54) and the bump (55) are arranged correspondingly, and the groove (54) and the bump (55) are clamped with each other;

the limiting piece (53) can limit the degrees of freedom of movement or rotation of the limiting piece (52) in other five directions except the plugging and unplugging direction of the control module (2).

5. The quick plug-in circuit breaker according to claim 1, characterized in that: the fixing component (6) comprises a fixing groove (61) fixedly arranged at the top of the shell (11) and a fixing block (62) arranged on the side wall of the shell (21);

the fixing grooves (61) and the fixing blocks (62) are arranged correspondingly, and the fixing blocks (62) can be arranged in the fixing grooves (61);

the fixing groove (61) is provided with a fixing hole a (63), the fixing block (62) is provided with a fixing hole b (64), and the fixing hole a (63) and the fixing hole b (64) are arranged correspondingly to each other.

6. The quick plug-in circuit breaker according to claim 1, characterized in that: the strong electricity interface (141) is connected with one end of a connector (15) through a strong electricity PCB connecting wire (71), and the other end of the connector (15) is connected with the acquisition daughter board (13) through the strong electricity PCB connecting wire (71);

the weak current interface (142) is connected with one end of the connector (15) through a weak current PCB connecting line (72), and the other end of the connector (15) is connected with the acquisition sub-board (13) through the weak current PCB connecting line (72).

7. The quick plug-in circuit breaker according to claim 1, characterized in that: isolation regions (8) are arranged in the middle of the interface daughter board (14) and the acquisition daughter board (13).

8. The quick plug-in circuit breaker according to claim 1, characterized in that: the bottom of the breaker (1) is detachably provided with a bottom cover (16).