A modular intelligent measuring circuit breaker with integrated signal indication and communication functions

Abstract

The present invention discloses a modular intelligent measuring circuit breaker with integrated signal indication and communication functions, comprising a shell assembly, a drive shaft, and a signal alarm device installed in a mounting slot structure via a connecting structure. The signal alarm device comprises a first switch structure, a second switch structure, and a power supply unit device installed on the shell structure. The first switch structure and the second switch structure respectively have a first contact pin and a second contact pin extending on the rotation path of the drive shaft. The signal alarm device adopts the technical solution, has a simple structure, can be modularized and installed in an integrated manner, occupies a small installation space, is convenient for the installation and replacement operations of the two switch structures on the circuit breaker, and reduces the setting cost. The power supply unit device can provide power for the carrier communication device, and the two switch structures can detect the circuit breaker's opening and closing status information and distinguish whether the circuit breaker is normally opened or tripped due to a fault, thereby ensuring the safety of product use.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and in particular to a modular intelligent measuring circuit breaker with integrated signal indication and communication functions. Background Art

[0002] Existing intelligent circuit breakers have long-delay overload and short-circuit instantaneous protection functions, and can also be used in conjunction with communication carrier modules to realize intelligent communication functions. Such intelligent circuit breakers with communication capabilities need to output opening and closing signals. The most common practice is that the opening and closing signals are provided by auxiliary contact accessories installed in the circuit breaker housing. Such auxiliary contact accessories take up a lot of space and are easily unable to be installed due to the space limitations of the circuit breaker housing, resulting in poor installation compatibility.

[0003] To this end, Chinese patent document CN20938881U discloses a molded case circuit breaker opening and closing detection device, comprising a drive shaft mounted within the circuit breaker housing, a housing, and a signal trigger device mounted on the housing and electrically connected to a circuit board. When the drive shaft rotates to open or close, it contacts or separates from the signal trigger device. The signal trigger device comprises a first trigger device and a second trigger device mounted within the housing. The first trigger device has an elastic contact pin disposed on the rotation path of the drive shaft and deflected by the drive shaft. The second trigger device comprises a second trigger device body mounted within the housing and a transmission rod. The transmission rod has one end that is a contact end connected to the second trigger device body and the other end that is a driven end extending in the same direction as the elastic contact pin and located on the rotation path of the drive shaft, so that the first trigger device and the second trigger device are driven and triggered during the rotation of the drive shaft. The two trigger devices are micro switches. To achieve signal transmission in such molded case circuit breakers, an RS485 communication module interface is typically provided on the circuit board, which is inconvenient to lay out the bus and is costly.

[0004] It can be seen from the above patent documents that the existing circuit breaker opening and closing detection device still has the following problems: 1. The two trigger devices need to be installed in the cover first, and then the cover is fixed on the base, and finally the middle base and the upper cover are covered. This cover installation takes up a large space, making the internal space of the circuit breaker crowded, and the installation is relatively cumbersome. It is inconvenient to install and replace the two trigger devices on the circuit breaker, resulting in low installation efficiency and high setup cost; 2. Since the two trigger devices are used as the circuit breaker self-test and external test functions respectively, they are only used to detect the opening and closing status of the circuit breaker. It is impossible to distinguish whether the circuit breaker is tripped fault open or normal free open, which cannot meet the user's needs. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problems in the prior art that the two trigger devices are only used to detect the opening and closing status of the circuit breaker, and cannot distinguish whether the circuit breaker is tripped and opened or normally opened, and the installation structure of the two trigger devices on the circuit breaker is complex, the installation and replacement operations are inconvenient, and the installation cost is high.

[0006] To solve the above technical problems, the present invention provides a modular intelligent measuring circuit breaker with integrated signal indication and communication functions, comprising:

[0007] A housing assembly includes a base and a middle base, and a drive shaft rotatably disposed between the base and the middle base, the drive shaft having a first position for driving the moving contact and the static contact to separate to form a first opening distance when the circuit breaker is normally opened, and a second position for driving the moving contact and the static contact to separate to form a second opening distance when the circuit breaker is tripped due to a fault, wherein the second opening distance is greater than the first opening distance;

[0008] A mounting slot structure is provided on the middle seat, and a through hole is provided at the bottom thereof opposite to the driving shaft;

[0009] A signal alarm device is installed in the mounting slot structure through a connecting structure, and includes a frame structure accommodated in the mounting slot structure, and a first switch structure and a second switch structure installed on both sides of the frame structure, wherein the first switch structure and the second switch structure respectively have a first contact pin and a second contact pin extending through the through hole on the rotation path of the drive shaft; when the drive shaft is in the first position, it contacts the first contact pin to trigger the first switch structure to send a signal for indicating that the circuit breaker is disconnected, and when in the second position, it successively contacts the second contact pin to trigger the second switch structure to send a signal for indicating that the circuit breaker is disconnected due to a tripping fault.

[0010] As a preferred solution, the frame structure includes two side chambers on both sides thereof, the first switch structure and the second switch structure are micro switches fixed in the two side chambers respectively, the first contact pin is rotatably arranged on the side wall of one side chamber and is connected to the triggering part of the first switch structure, and the second contact pin is rotatably arranged on the side wall of the other side chamber and is connected to the triggering part of the second switch structure.

[0011] As a preferred solution, the bottom ends of the two side chambers are open ends connected to the through hole, and the first contact pin and the second contact pin are located above the driving shaft in a high and low position after passing through the through hole. The driving shaft includes two pushing bosses opposite to the first contact pin and the second contact pin respectively. When the driving shaft is in the first position, it drives the first contact pin to rotate through one of the pushing bosses, and when it is in the second position, it drives the second contact pin to rotate through the other pushing boss.

[0012] As a preferred solution, an upper chamber is provided on the top of the frame structure, an electrical connection board is installed in the upper chamber, a communication module connected to the first switch structure and the second switch structure is provided on the electrical connection board; or a connector module connected to the lines of the first switch structure and the second switch structure is provided on the electrical connection board.

[0013] As a preferred solution, a carrier communication device is provided between the base and the middle seat, and a power supply unit device for providing power to the carrier communication device is provided on the shell structure. The power supply unit device and the carrier communication device are respectively connected to the electrical connection board and are connected between the two to form a transmission circuit.

[0014] As a preferred solution, the frame structure is provided with a groove cavity located at the front end of the upper chamber, the power supply unit device is installed and accommodated in the groove cavity and connected to the electrical connection board through a first plug-in structure, and the carrier communication device is connected to the electrical connection board through a second plug-in structure.

[0015] As a preferred solution, a first socket is provided between the front end side wall of the upper chamber and the upper end of the groove cavity. The first plug-in structure includes a first socket arranged on the electrical connection board near the first socket, and a first connector arranged on the power supply unit device and opposite to the first socket. When the power supply unit device is installed into the groove cavity, it drives the center and forms a plug-in fit with the first socket.

[0016] As a preferred solution, the carrier communication device includes a carrier module body that is pluggable and arranged on the middle seat, and a control electrical component that is arranged on the base and electrically connected to the carrier module body; a second socket is provided on the rear end side wall of the upper chamber, and the second plug-in structure includes a second socket arranged on the electrical connection board near the second socket, and a second connector connected to the control electrical component through a line, and the second connector is plugged into the second socket through the second socket.

[0017] As a preferred solution, a positioning boss is provided in the upper chamber, and a positioning through-hole that is adapted to pass through the positioning boss is provided on the electrical connection plate; the connector module includes two connector seat ends provided on both sides of the electrical connection plate, and two connector wire ends respectively connected to the first switch structure and the second switch structure, and the connector wire ends form a plug-in fit with the connector seat ends.

[0018] As a preferred solution, the power supply unit device is a battery structure that is matched and installed in a groove cavity. The groove cavity is in the shape of a cylindrical groove, and at least one limiting groove is provided on its circumferential inner wall along its length direction. The power supply unit device has at least one limiting slider that is slidably inserted into the limiting groove.

[0019] As a preferred solution, the shell frame structure includes two cover structures installed on both sides thereof and covering the two side chambers. The two cover structures have two upper blocking surfaces that cover the upper chamber when matched. The two upper blocking surfaces are respectively provided with limit columns opposite to the upper and lower electrical connection plates. The shell assembly also includes an upper cover installed on the middle seat and blocking the mounting slot structure.

[0020] As a preferred solution, the connecting structure includes a plurality of elastic hook structures arranged at both ends of the frame structure, and a plurality of slot structures and / or a plurality of snap-on bosses correspondingly arranged on the opposite side walls of the mounting slot structure. When the frame structure is installed into the mounting slot structure, the plurality of elastic hook structures form a snap-fitting fit with the slot structures or snap-on bosses.

[0021] The technical solution of the present invention has the following advantages over the prior art:

[0022] 1. In the modular intelligent measuring circuit breaker provided by the present invention, first and second switch structures are provided on both sides of the frame structure. By directly installing the signal alarm device into the mounting slot structure of the center base, the first and second contact pins of the first and second switch structures can be extended through the through hole to the rotation path of the drive shaft. The advantage of this design is that when the circuit breaker is normally open, the drive shaft moves to the first position and contacts the first contact pin, causing the first switch structure to transmit a signal indicating the circuit breaker is open, thereby providing auxiliary indication for the circuit breaker in the open and closed states. When the circuit breaker trips and opens due to a fault, the drive shaft rotates beyond the first position to the second position and contacts the second contact pin, causing the second switch structure to transmit a signal indicating the circuit breaker has tripped and opened, thereby providing an alarm signal for the tripped circuit breaker. Furthermore, when the circuit breaker is closed, the drive shaft separates from the first and second contact pins, respectively, triggering the first and second switch structures to transmit signals indicating the circuit breaker is closed. The signal alarm device using this technical solution has a simple structure, can be installed in a modular and integrated manner, occupies a small installation space, and is convenient for the installation and replacement of the two switch structures on the circuit breaker. The installation is simple and convenient, which improves the installation efficiency and reduces the setting cost. The signal alarm device can detect the opening and closing status information of the circuit breaker and distinguish whether the circuit breaker is normally open or tripped due to a fault. The detection is accurate and reliable, ensuring the safety of product use.

[0023] 2. In the modular intelligent measuring circuit breaker provided by the present invention, a power supply unit device for providing power to the carrier communication device is provided on the frame structure. Circuit communication between the power supply unit device and the carrier communication device is achieved through an electrical connection plate. This structural design integrates the power supply unit device and two switch structures on the frame structure. The overall structure is compact, space-saving, and cost-reducing. Simultaneously, integrated installation on the circuit breaker is achieved, making installation more convenient. The power supply unit device can independently power the carrier communication device to prevent communication interruption and information loss of the carrier communication device due to sudden power failure of the circuit breaker main circuit, thereby ensuring the stability and reliability of signal transmission of the carrier communication device.

[0024] 3. In the modular intelligent measuring circuit breaker provided by the present invention, the power supply unit device is installed and accommodated in the groove cavity of the shell structure and is pluggably connected to the electrical connection plate through a first plug-in structure, and the carrier communication device is pluggably connected to the electrical connection plate through a second plug-in structure. This first plug-in structure and the second plug-in structure are both designed based on the principle of electrical connectors, with convenient plug-in connection and good electrical performance. This allows for rapid installation and connection of the power supply unit device and the carrier communication device with the electrical connection plate, plays a modular connection role, simplifies the assembly process, facilitates mass production and assembly of the signal alarm device and the carrier communication device, and improves assembly efficiency.

[0025] 4. In the modular intelligent measuring circuit breaker provided by the present invention, the carrier communication device comprises a carrier module body and a control electrical assembly. The control electrical assembly is connected to a second connector via a circuit, and a first socket and a second socket are correspondingly provided on the electrical connection plate. During installation, when the power supply unit is inserted into the recessed cavity, the first connector and the first socket are engaged, and the second connector and the second socket are engaged, thereby achieving a circuit connection between the power supply unit and the carrier communication device. Furthermore, the two switch structures can also be plugged into the electrical connection plate via the connector module, thereby achieving a circuit connection between the two switch structures and the carrier communication device. Indication signals sent by the two switch structures can be transmitted via the carrier communication device. This mounting structure design allows for assembly and connection between the various devices through plug-in engagement of connectors (electrical connectors). This simple mounting structure simplifies the installation process, facilitates assembly, saves assembly time, and facilitates disassembly and maintenance, thereby achieving modular installation of the signal alarm device and the carrier communication device on the circuit breaker.

[0026] 5. In the modular intelligent measuring circuit breaker provided by the present invention, the power supply unit has a cylindrical battery structure, and the recessed cavity has a corresponding circular groove structure. When the power supply unit is installed into the recessed cavity from top to bottom, the limiting slider on the power supply unit slides downward along the limiting groove on the inner wall of the recessed cavity. The cooperation between the limiting slider and the limiting groove can prevent the power supply unit from twisting within the recessed cavity when subjected to force, thereby limiting the installation and ensuring the installation stability of the power supply unit.

[0027] 6. In the modular intelligent measuring circuit breaker provided by the present invention, the signal alarm device integrates two switch structures and a power supply unit device on a frame structure. The frame structure is provided with two side chambers on either side for mounting the two switch structures. The top of the frame structure is provided with an upper chamber for mounting an electrical connection plate. A recessed cavity for mounting the power supply unit device is provided on the front side of the upper chamber. The two side chambers and the upper chamber are covered by two cover structures to provide a protective effect. This design ensures sufficient electrical clearance between the two switch structures and connects the two switch structures and the power supply unit device to the carrier communication device through the electrical connection plate to achieve circuit connection. This rationally optimizes the structural layout, reduces the occupied space, and facilitates reducing the size of the signal alarm device.

[0028] 7. In the modular intelligent measuring circuit breaker provided by the present invention, multiple elastic hook structures are provided at both ends of the frame structure, and multiple slot structures or multiple snap bosses are provided on the side walls of the mounting slot structure. During installation, once the frame structure is installed into the mounting slot structure, the elastic hook structures and the slot structures or snap bosses form a snap fit, thereby maintaining the frame structure in a fixed installation position within the mounting slot structure. This allows for the installation and fixation of the signal alarm device in one step, avoiding the use of traditional installation methods using multiple screws or other fasteners. This provides reliable fixation, simplifies the installation structure, improves assembly efficiency, and reduces costs. Finally, when the upper cover is fixed to the middle base, the mounting slot structure is covered to prevent the signal alarm device from being exposed, providing good protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the specific implementation or the description of the prior art.

[0030] Figure 1 It is a structural schematic diagram of the modular intelligent measuring circuit breaker of the present invention;

[0031] Figure 2 is a schematic planar structural diagram of the modular intelligent measuring circuit breaker of the present invention, particularly illustrating the mounting slot structure;

[0032] Figure 3Schematic diagram of the installation structure of the signal alarm device and the driving shaft of the present invention;

[0033] Figure 4 This is a structural diagram of the first switch structure of the present invention installed in a signal alarm device;

[0034] Figure 5 This is a structural diagram of the second switch structure of the present invention installed in a signal alarm device;

[0035] Figure 6 Schematic diagram of the cross-sectional structure of the signal alarm device of the present invention;

[0036] Figure 7 It is a structural schematic diagram of the power supply unit device of the present invention;

[0037] Figure 8 This is a schematic structural diagram of the first switch structure of the present invention when the circuit breaker is open;

[0038] Figure 9 This is a schematic structural diagram of the second switch structure of the present invention when the circuit breaker trips due to a fault;

[0039] Explanation of the accompanying drawings: 1. Shell assembly; 11. Base; 12. Middle seat; 2. Shell frame structure; 21. Side chamber; 22. Upper chamber; 23. Groove cavity; 24. First socket; 25. Second socket; 26. Positioning boss; 27. Limiting slide groove; 28. Elastic hook structure; 29. ​​Cover structure; 291. Buckle assembly; 292. Limiting column; 293. Strip groove; 3. First switch structure; 31. First contact pin; 4. Second switch structure; 4. First contact pin; 5. Electrical connection board; 50. Connector module; 51. First socket; 52. Second socket; 6. Power supply unit device; 61. First connector; 62. Limiting slider; 7. Carrier communication device; 8. Mounting slot structure; 80. Through hole; 81. Slot structure; 82. Buckle boss; 9. Drive shaft; 91. Push boss. DETAILED DESCRIPTION

[0040] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "first", "second" and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance.

[0042] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0043] Example 1

[0044] This embodiment provides Figure 1-9 A modular intelligent measuring circuit breaker with integrated signal indication and communication functions is shown, comprising:

[0045] The housing assembly 1 includes a base 11 and a middle base 12, and a drive shaft 9 rotatably disposed between the base 11 and the middle base 12. The drive shaft 9 has a first position in which the moving contact and the static contact are separated to form a first opening distance when the circuit breaker is normally opened, and a second position in which the moving contact and the static contact are separated to form a second opening distance when the circuit breaker is tripped due to a fault, wherein the second opening distance is greater than the first opening distance.

[0046] The mounting groove structure 8 is provided on the middle seat 12, and a through hole 80 is provided at the bottom thereof opposite to the driving shaft 9;

[0047] A signal alarm device is installed in the mounting slot structure 8 through a connecting structure, and includes a frame structure 2 accommodated in the mounting slot structure 8, and a first switch structure 3 and a second switch structure 4 installed on both sides of the frame structure 2, wherein the first switch structure 3 and the second switch structure 4 respectively have a first contact 31 and a second contact 41 extending through the through hole 80 on the rotation path of the drive shaft 9; when the drive shaft 9 is in the first position, it touches the first contact 31 to trigger the first switch structure 3 to send a signal for indicating that the circuit breaker is open, and when in the second position, it successively touches the second contact 41 to trigger the second switch structure 4 to send a signal for indicating that the circuit breaker is tripped and fault-tripped; when the circuit breaker is closed, the drive shaft 9 is separated from the first contact and the second contact, respectively, to trigger the first switch structure and the second switch structure to send signals for indicating that the circuit breaker is closed.

[0048] In the above embodiment, the signal alarm device is directly installed into the mounting slot structure 8 of the middle seat 12, so that the first contact 31 and the second contact of the first switch structure 3 and the second switch structure 4 can extend through the through hole 80 to the rotation path of the drive shaft 9. The advantage of this design is that the drive shaft 9 moves to the first position and touches the first contact 31 when the circuit breaker is normally opened, so that the first switch structure 3 sends a signal for indicating that the circuit breaker is opened, thereby serving as an auxiliary indication for the circuit breaker in the open and closed states, and when the circuit breaker trips and opens due to a fault, the drive shaft 9 will rotate across the first position to the second position and touch the second contact, so that the second switch structure 4 sends a signal for indicating that the circuit breaker trips and opens due to a fault, thereby serving as a signal alarm for the circuit breaker that has tripped due to a fault. The signal alarm device using this technical solution has a simple structure, can be installed in a modular and integrated manner, occupies a small installation space, and is convenient for the installation and replacement of the two switch structures on the circuit breaker. The installation is simple and convenient, which improves the installation efficiency and reduces the setting cost. The signal alarm device can detect the opening and closing status information of the circuit breaker and distinguish whether the circuit breaker is normally open or tripped due to a fault. The detection is accurate and reliable, ensuring the safety of product use.

[0049] The following combination Figure 1-3 The specific configuration of the first switch structure and the second switch structure is described in detail:

[0050] The frame structure 2 includes two side chambers 21 on both sides thereof, the first switch structure 3 and the second switch structure 4 are respectively micro switches fixed in the two side chambers 21, the first contact 31 is rotatably arranged on the side wall of the chamber 21 on one side and is connected to the triggering part of the first switch structure 3, the second contact is rotatably arranged on the side wall of the chamber 21 on the other side and is connected to the triggering part of the second switch structure 4, the first contact and the second contact are L-shaped and are respectively provided with a reset torsion spring, the triggering part is an elastic button or elastic key of the micro switch, when the circuit breaker is in the closed state, because the first contact and the second contact are respectively pressed against the triggering parts of the two micro switches under the action of the reset torsion spring, that is, the two micro switches are in the normally closed state, so that the first switch structure or the second switch structure sends a closing signal for indicating that the circuit breaker is closed. Therefore, when the circuit breaker is normally opened, refer to Figure 8 , the driving shaft drives the first contact foot 31 shaft and separates from the trigger part of the first switch structure 3, so that the first switch structure switches from normally closed to normally open, thereby triggering the first switch structure to start and send a trip indication signal; and when the circuit breaker trips due to a fault, refer to Figure 9, the driving shaft will drive the second contact pin to rotate and separate from the trigger part of the second switch structure, so that the second switch structure switches from normally closed to normally open, thereby triggering the first switch structure to open and send a trip indication signal. Obviously, it is also possible to choose not to have the first contact pin and the second contact pin contact the trigger parts of the two switch structures when the circuit breaker is closed, but when the circuit breaker is opened or tripped, the first contact pin and the second contact pin are driven by the driving shaft to squeeze the trigger parts of the two switch structures respectively, and the triggering process of the two switch structures can also be realized. Those skilled in the art can make a choice of the specific setting method of the first contact pin and the second contact pin based on the above description, and will not be described in detail here.

[0051] As a preferred embodiment, the bottom ends of the two side chambers 21 are open ends connected to the through hole 80. After the first contact 31 and the second contact pass through the through hole 80, they are located above the driving shaft 9 in a high and low position. The driving shaft 9 includes two abutting bosses 91 respectively opposite to the first contact 31 and the second contact. Since the driving shaft 9 rotates to the first position when the circuit breaker is normally opened, and passes through the first position and rotates to the second position when the circuit breaker trips and fails, that is, the driving shaft 9 drives the moving contact to open with a larger opening distance in the tripped state, thereby triggering the first contact 31 one after the other. and the second contact pin. In summary, when the driving shaft 9 is in the first position, it drives the first contact pin 31 to rotate through one of the pushing bosses 91, and when it is in the second position, it drives the second contact pin to rotate through the other pushing boss 91. wherein, the driving shaft 9 in the second position will successively trigger the first switch structure 3 and the second switch structure 4 to send signals, the trip indication signal of the first switch structure 3 serves as an auxiliary indication, and the trip fault signal indication of the second switch structure 4 can be used to determine that a trip fault has occurred in the circuit breaker, and the trip faults that cause the circuit breaker to trip are mainly short circuit faults, leakage faults or overload faults.

[0052] like Figure 4-5 As shown, an upper chamber 22 is provided on the top of the frame structure 2, and an electrical connection board 5 is installed in the upper chamber 22. The electrical connection board 5 is provided with a communication module that is connected to the first switch structure 3 and the second switch structure 4; or the electrical connection board 5 is provided with a connector module 50 that is connected to the first switch structure 3 and the second switch structure 4. This arrangement allows the two switch structures to be connected to the electrical connection board 5 by wireless or wireless means, and the connection methods are diverse.

[0053] The intelligent circuit breaker provided in this embodiment further includes a carrier communication device 7 provided between the base 11 and the middle base 12. Figure 1 、 Figure 4-6As shown, the frame structure 2 is provided with a power supply unit device 6 for providing power to the carrier communication device 7. The power supply unit device 6 and the carrier communication device 7 are respectively connected to the electrical connection plate 5 and are connected to each other to form a transmission circuit. The carrier communication device 7 can use existing power lines to transmit data, that is, it transmits analog or digital signals of the circuit breaker at high speed via a carrier wave. This eliminates the need to set up a new network bus and simplifies wiring. Therefore, the first switch structure 3 and the second switch structure 4 implement the indication signal transmission function through the carrier communication device 7. The advantage of this design is that the power supply unit device 6 is integrated with the two switch structures on the frame structure 2, resulting in a compact overall structure, saving space and reducing costs. Simultaneously, they are integrated and installed on the circuit breaker, making installation more convenient. The power supply unit device 6 can independently power the carrier communication device 7 to prevent communication interruption and information loss of the carrier communication device 7 due to a sudden power outage in the circuit breaker main circuit, thereby ensuring the stability and reliability of signal transmission of the carrier communication device 7.

[0054] In order to quickly connect the electrical circuit between the power supply unit device 6 and the carrier communication device 7, the frame structure 2 is provided with a groove cavity 23 located at the front end of the upper chamber 22. The power supply unit device 6 is installed and accommodated in the groove cavity 23 and is connected to the electrical connection board 5 through a first plug-in structure. The carrier communication device 7 is connected to the electrical connection board 5 through a second plug-in structure. Both the first plug-in structure and the second plug-in structure are designed based on the principle of electrical connectors, with convenient plug-in connection and good electrical performance. In this way, the power supply unit device 6 and the carrier communication device 7 can be quickly installed and connected to the electrical connection board 5, which plays a modular connection role, simplifies the assembly process, is beneficial to the mass production and assembly of the signal alarm device and the carrier communication device 7, and improves assembly efficiency.

[0055] A positioning boss 26 is provided in the upper chamber 22, and a positioning through-hole 80 is provided on the electrical connection board 5, which is adapted to be passed through the positioning boss 26. The electrical connection board 5 is positioned by the cooperation between the positioning boss 26 and the positioning through-hole 80. In this embodiment, the two switch structures may preferably adopt the setting mode of the connector module 50. Specifically, the connector module 50 includes two connector seat ends provided on both sides of the electrical connection board 5, and two connector wire ends respectively connected to the first switch structure 3 and the second switch structure 4. The connector wire ends are plug-fitted with the connector seat ends, and the installation and connection are convenient.

[0056] The following combination Figure 4-6 The specific configuration of the first plug-in structure and the second plug-in structure is described in detail:

[0057] A first socket 24 is provided between the front end side wall of the upper chamber 22 and the upper end of the groove cavity 23. The first plug-in structure includes a first socket 51 provided on the electrical connection board 5 near the first socket 24, and a first connector 61 provided on the power supply unit device 6 and opposite to the first socket 51. When the power supply unit device 6 is installed in the groove cavity 23, it drives the middle and forms a plug-in fit with the first socket 51. It is further preferably provided that the carrier communication device 7 includes a carrier module body that is pluggable and arranged on the middle seat 12, and a carrier module body that is arranged on the base 11 and is connected to the carrier module body. The control electrical components are electrically connected to the block body, and a plug-in groove for installing the carrier module body is provided on the middle seat 12. The control electrical components mainly include a control circuit board and a power circuit board, and a plug-in module arranged on the control circuit board and plugged in with the carrier module body. A second socket 25 is provided on the rear end side wall of the upper chamber 22, and the second plug-in structure includes a second socket 52 arranged on the electrical connection board 5 near the second socket 25, and a second connector connected to the control electrical component through a line, and the second connector is plugged into the second socket 52 through the second socket 25.

[0058] The advantage of adopting this design scheme is that the electrical connection board 5 itself integrates multiple circuit structures. Through the cooperation of the first connector 61 and the first socket 51 and the second connector and the second socket 52, the circuit connection between the power supply unit device 6 and the carrier communication device 7 is realized, and the two switch structures can also be plug-in installed with the electrical connection board 5 through the connector module 50, thereby realizing the circuit connection between the two switch structures and the carrier communication device 7, and the indication signals sent by the two switch structures can be transmitted through the carrier communication device 7. This installation structure design is to realize modular assembly between the devices through plug-in cooperation in the form of connectors (electrical connectors). The installation structure is simple, which greatly simplifies the installation process. It is extremely convenient to assemble, saves assembly time, and is very convenient to disassemble and maintain, thereby realizing modular installation of the signal alarm device and the carrier communication device 7 on the circuit breaker.

[0059] like Figure 5 and Figure 7As shown, the power supply unit device 6 is a battery structure matched to be installed in the groove cavity, and the battery structure includes a cylindrical battery shell and a lithium battery part installed in the battery shell. The groove cavity 23 is in the shape of a cylindrical groove. In order to prevent the power supply unit device 6 from rotating when the groove cavity 23 is subjected to force, at least one limiting groove 27 is provided on the circumferential inner wall of the groove cavity 23 along its length direction. The power supply unit device 6 has at least one limiting slider 62 that is slidably inserted into the limiting groove. With this structural arrangement, when the power supply unit device 6 is loaded into the groove cavity 23 from top to bottom, the limiting slider 62 thereon slides downward along the limiting groove 27 and is inserted into the groove cavity 23. The cooperation between the limiting slider 62 and the limiting groove 27 can limit the torsion of the power supply unit device 6 in the groove cavity 23 when subjected to force, thereby playing a role of limiting installation and ensuring the stability of the installation connection of the power supply unit device 6.

[0060] In this embodiment, the frame structure 2 includes two cover structures 29 installed on both sides thereof and covering the two side chambers 21 through a snap assembly 291. The two cover structures 29 have two upper blocking surfaces that cover the upper chamber 22 when aligned. The two upper blocking surfaces are respectively provided with limit columns 292 that are opposite to the upper and lower sides of the electrical connection plate 5. The limit columns 292 are used to press against the electrical connection plate 5 to prevent the electrical connection plate 5 from shaking and tilting in the upper chamber 22. The snap assembly 291 includes strip grooves 293 respectively provided on the side walls at the front and rear ends of the frame structure, and a plurality of mounting clips respectively provided on the two cover structures and engaged with the strip grooves; the shell assembly 1 also includes an upper cover installed on the middle seat and blocking the mounting slot structure 8. This The signal alarm device integrates two switch structures and a power supply unit device 6 and installs them on the frame structure 2. Two side chambers 21 for installing the two switch structures are provided on both sides of the frame structure 2. An upper chamber 22 for installing the electrical connection plate 5 is provided on the top, and a groove cavity 23 for installing the power supply unit device 6 is provided at the front end of the upper chamber 22. The two side chambers 21 and the upper chamber 22 are covered by two cover structures 29, which play a limiting and protective role on the two switch structures. This design ensures that there is sufficient electrical clearance between the two switch structures, and the two switch structures and the power supply unit device 6 are connected to the carrier communication device 7 through the electrical connection plate 5 to realize circuit connection, which reasonably optimizes the structural layout, reduces the occupied space, and is conducive to reducing the volume of the signal alarm device.

[0061] In order to realize the rapid installation of the signal alarm device on the circuit breaker, combined with Figure 2-4As shown, the connecting structure includes a plurality of elastic hook structures 28 provided at both ends of the frame structure 2, and a plurality of slot structures 81 and / or a plurality of snap bosses 82 correspondingly provided on the side walls on both sides of the mounting groove structure 8. That is, the slot structures 81 and the snap bosses 82 can be selected or used in combination. For example, a slot structure 81 is provided on one side wall of the mounting groove structure 8, and a snap boss 82 is provided on the other side wall. This structural arrangement allows the plurality of elastic hook structures 28 to be connected to the mounting groove structure 8 when the frame structure 2 is installed in the mounting groove structure 8. The hook structure 28 forms a snap fit with the slot structure 81 or the snap boss 82, so that the frame structure 2 maintains a fixed installation position in the installation slot structure 8, that is, the signal alarm device is installed and fixed in one step, avoiding the use of traditional installation methods such as multiple screws and other fasteners. The fit and fixation are reliable, the installation structure is simplified, the assembly is faster and more convenient, the assembly efficiency is improved, and it is beneficial to reduce costs. Finally, when the upper cover is fixed to the middle seat, the installation slot structure 8 is covered to avoid exposure of the signal alarm device, and the appearance is neat and beautiful, with good protection.

[0062] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A modular intelligent measuring circuit breaker with integrated signal indication and communication functions, characterized in that: include: A housing assembly (1) comprises a base (11) and a middle base (12), and a driving shaft (9) rotatably arranged between the base (11) and the middle base (12), wherein the driving shaft (9) has a first position for driving the moving contact and the static contact to separate to form a first opening distance when the circuit breaker is normally opened, and a second position for driving the moving contact and the static contact to separate to form a second opening distance when the circuit breaker is tripped due to a fault, wherein the second opening distance is greater than the first opening distance; A mounting groove structure (8) is provided on the middle seat (12), and a through hole (80) is provided at the bottom thereof opposite to the driving shaft (9); A signal alarm device is installed in the installation slot structure (8) through a connecting structure, comprising a frame structure (2) accommodated in the installation slot structure (8), and a first switch structure (3) and a second switch structure (4) installed on both sides of the frame structure (2), wherein the first switch structure (3) and the second switch structure (4) respectively have a first contact pin (31) and a second contact pin (41) extending through the through hole (80) on the rotation path of the drive shaft (9); when the drive shaft (9) is in the first position, it presses the first contact pin (31) to trigger the first switch structure (3) to send a signal for indicating the circuit breaker is disconnected, and when in the second position, it successively presses the second contact pin (41) to trigger the second switch structure (4) to send a signal for indicating the circuit breaker is disconnected due to a tripping fault.

2. The modular intelligent measuring circuit breaker with integrated signal indication and communication functions according to claim 1, characterized in that: The frame structure (2) includes two side chambers (21) arranged on both sides thereof; the first switch structure (3) and the second switch structure (4) are respectively micro switches fixed in the two side chambers (21); the first contact pin (31) is rotatably arranged on the side wall of one side chamber (21) and is connected to the triggering portion of the first switch structure (3); and the second contact pin (41) is rotatably arranged on the side wall of the other side chamber (21) and is connected to the triggering portion of the second switch structure (4).

3. The modular intelligent measuring circuit breaker with integrated signal indication and communication functions according to claim 2, characterized in that: The bottom ends of the two side chambers (21) are open ends connected to the through hole (80). After passing through the through hole (80), the first contact pin (31) and the second contact pin (41) are located above the driving shaft (9) in a high and low position. The driving shaft (9) includes two push bosses (91) respectively opposite to the first contact pin (31) and the second contact pin. When the driving shaft (9) is in the first position, it drives the first contact pin (31) to rotate through one of the push bosses (91), and when it is in the second position, it drives the second contact pin to rotate through the other push boss (91).

4. The modular intelligent measuring circuit breaker with integrated signal indication and communication functions according to claim 3, characterized in that: An upper chamber (22) is provided on the top of the frame structure (2), an electrical connection board (5) is installed in the upper chamber (22), and a communication module is provided on the electrical connection board (5) for communication connection with the first switch structure (3) and the second switch structure (4); or a connector module (50) is provided on the electrical connection board (5) for circuit connection with the first switch structure (3) and the second switch structure (4).

5. The modular intelligent measuring circuit breaker with integrated signal indication and communication functions according to any one of claims 1 to 4, characterized in that: A carrier communication device (7) is provided between the base (11) and the middle seat (12); a power supply unit device (6) for providing power to the carrier communication device (7) is provided on the frame structure (2); the power supply unit device (6) and the carrier communication device (7) are respectively connected to an electrical connection board (5) and are connected to form a transmission circuit.

6. The modular intelligent measuring circuit breaker with integrated signal indication and communication functions according to claim 5, characterized in that: The frame structure (2) is provided with a groove cavity (23) located at the front end of the upper chamber (22); the power supply unit device (6) is installed and accommodated in the groove cavity (23) and is connected to the electrical connection board (5) via a first plug-in structure; and the carrier communication device (7) is connected to the electrical connection board (5) via a second plug-in structure.

7. The modular intelligent measuring circuit breaker with integrated signal indication and communication functions according to claim 6, characterized in that: A first socket (24) is provided between the front end side wall of the upper chamber (22) and the upper end of the groove cavity (23). The first plug-in structure comprises a first socket (51) provided on the electrical connection board (5) near the first socket (24), and a first connector (61) provided on the power supply unit device (6) and opposite to the first socket (51). When the power supply unit device (6) is installed in the groove cavity (23), it drives the center and forms a plug-in fit with the first socket (51).

8. The modular intelligent measuring circuit breaker with integrated signal indication and communication functions according to claim 7, characterized in that: The carrier communication device (7) includes a carrier module body that is pluggable and arranged on the middle seat (12), and a control electrical component that is arranged on the base (11) and electrically connected to the carrier module body; a second socket (25) is provided on the rear end side wall of the upper chamber (22), and the second plug-in structure includes a second socket (52) provided on the electrical connection board (5) near the second socket (25), and a second connector connected to the control electrical component through a line, and the second connector passes through the second socket (25) and is plugged into the second socket (52).

9. The modular intelligent measuring circuit breaker with integrated signal indication and communication functions according to claim 4, characterized in that: A positioning boss (26) is provided in the upper chamber (22), and a positioning through hole (80) adapted to penetrate the positioning boss (26) is provided on the electrical connection plate (5); the connector module (50) comprises two connector base ends provided on both sides of the electrical connection plate (5), and two connector wire ends respectively connected to the first switch structure (3) and the second switch structure (4), wherein the connector wire ends are plug-fitted with the connector base ends.

10. The modular intelligent measuring circuit breaker with integrated signal indication and communication functions according to claim 8, characterized in that: The power supply unit device (6) is a battery structure matched to be installed in the groove cavity. The groove cavity (23) is in the shape of a cylindrical groove, and at least one limiting sliding groove (27) is provided on its circumferential inner wall along its length direction. The power supply unit device (6) has at least one limiting sliding block (62) that is slidably inserted into the limiting sliding groove.

11. The modular intelligent measuring circuit breaker with integrated signal indication and communication functions according to any one of claims 6 to 10, characterized in that: The frame structure (2) includes two cover structures (29) installed on both sides thereof through a snap assembly (291) and covering two side chambers (21); the two cover structures (29) have two upper blocking surfaces that cover the upper chamber (22) when aligned; the two upper blocking surfaces are respectively provided with limit columns (292) that are opposite to the electrical connection plate (5) in the upper and lower directions.

12. The modular intelligent measuring circuit breaker with integrated signal indication and communication functions according to claim 1, characterized in that: The shell assembly (1) also includes an upper cover installed on the middle seat and covering the installation slot structure (8); the connection structure includes a plurality of elastic hook structures (28) arranged at both ends of the shell frame structure (2), and a plurality of slot structures (81) and / or a plurality of snap-fit ​​bosses (82) correspondingly arranged on the side walls on opposite sides of the installation slot structure (8); when the shell frame structure (2) is installed in the installation slot structure (8), the plurality of elastic hook structures (28) and the slot structures (81) or the snap-fit ​​bosses (82) form a snap fit.

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