Modularized accessory module and circuit breaker

Abstract

The utility model discloses a modularized accessory module and a circuit breaker, the modularized accessory module comprises a base, a release, an alarm switch and an auxiliary switch, and the base is provided with longitudinal release slots which are regularly and transversely arranged; each tripper comprises a reset push rod capable of rotating back and forth around a shaft and a tripping shaft capable of moving back and forth by being reset by the reset push rod, the base is provided with a tripper transmission structure which is connected with the circuit breaker body to control tripping and resetting of the tripper, and the base is provided with auxiliary switch slots which are regularly and transversely arranged below the rear of the tripper slots. Alarm switch slots which are regularly and transversely arranged are arranged on the side face of the release slot of the base in the direction facing the operating mechanism side plate, and an alarm transmission structure and an auxiliary transmission structure are arranged on the base and connected with the circuit breaker body to control an alarm switch and an auxiliary switch to transmit corresponding signals. Through the scheme, the problems of scattered assembly and large occupied space in the prior art are solved, and the beneficial effects of reducing the size and lowering the cost are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of low-voltage electrical appliances, and in particular to a modular accessory module and a circuit breaker thereof. Background Art

[0002] Circuit breakers can be used to distribute electric energy and protect circuits and power equipment from overload and short circuit. They can also be used for infrequent switching of circuits and infrequent starting of motors. Circuit breakers usually consist of circuit breaker bodies and accessories. According to different user requirements for circuit breakers, circuit breakers can be installed and removed with various circuit breaker accessories, such as auxiliary contacts, alarm contacts, shunt releases, and undervoltage releases. In order to install various accessories, accessory cavities with different functions are usually set up in the circuit breaker body according to different structural requirements for installing different functional accessories. The assembly is relatively scattered, and a full set of accessories will basically occupy the entire area of ​​the middle cover. Summary of the invention

[0003] In view of the deficiencies of the prior art, the present application provides a modular accessory module and a circuit breaker to solve the problems of the prior art such as low modularization level, scattered assembly and large space occupation.

[0004] To achieve the above objectives, this application is implemented through the following technical solutions:

[0005] A modular accessory module, comprising a base, a release, an alarm switch and an auxiliary switch, wherein the base is provided with longitudinal release slots arranged in a regular transverse manner, the release is vertically installed in the release slots from top to bottom, a release fixing structure is provided at the notch position of the release slot to fix the release, each of the releases comprises a reset push rod that can rotate forward and backward around an axis and a release shaft that can move forward and backward and be reset by the reset push rod, and a avoidance feature for the release shaft is provided on the front wall of each of the release slots, and a release transmission structure is provided on the base to connect with the circuit breaker body to control the release to trip and reset; the base Auxiliary switch slots arranged in a regular transverse manner are arranged at the lower rear of the release slot, and a switch fixing structure is arranged at the notch of each auxiliary switch slot to fix the auxiliary switch. The base is provided with alarm switch slots arranged in a regular transverse manner on the side of the release slot facing the side plate of the operating mechanism, and a switch fixing structure is arranged at the notch of each alarm switch slot to fix the alarm switch. The base is provided with a notch at the bottom of each auxiliary switch slot and the alarm switch slot to expose the switch contacts, and an alarm transmission structure and an auxiliary transmission structure are respectively arranged on the base to connect with the circuit breaker body to control the alarm switch and the auxiliary switch to transmit corresponding signals.

[0006] Preferably, there are two release slots, one for installing a shunt release and the other for installing an undervoltage release.

[0007] Preferably, the releaser fixing structure includes a pressure plate and a longitudinal clip, the longitudinal clip is arranged on the isolation rib between the releaser slots, the pressure plate is pressed on the top surface of the releaser from above, and the base is provided with pressure plate screw holes on the top of both sides of all the releaser slots, and the pressure plate is fixed by the pressure plate screws on both sides and the longitudinal clip on the isolation rib at the same time.

[0008] Preferably, the switch fixing structure of the auxiliary switch slot is a transverse clip, and the transverse clip is arranged on the partition between the auxiliary switch slots and the rear side of the side plate of the sidemost auxiliary switch slot.

[0009] Preferably, the switch fixing structure of the alarm switch slot is a longitudinal buckle, and the longitudinal buckle is arranged on the top of the front and rear walls of the alarm switch slot.

[0010] The cam is connected with the first push rod by the second end of the push rod, and the cam is connected with the second push rod by the second end of the push rod to contact the first push rod of the cam. The cam is secured to the chassis and has a first end that is adapted to engage the second end of the second lever and to engage with the second end of the second lever when the lever is in a position to engage with the first lever.

[0011] Preferably, the alarm transmission structure includes an alarm push rod, which is fixedly mounted on the end of the tripping shaft facing the accessory module and rotates with the tripping shaft, and the far-axis end of the alarm push rod contacts the bottom switch contact of the alarm switch after rotation.

[0012] Preferably, the auxiliary transmission structure includes an auxiliary push rod, which is fixed to the bottom side of the rear part of the base through a fourth axis parallel to the first axis. A second reset torsion spring is also mounted on the fourth axis. The second reset torsion spring connects the auxiliary push rod and the base so that the auxiliary push rod can be reset after rotating around the fourth axis. The auxiliary push rod is mounted on the first push rod at one distal end of the fourth axis, and the other distal end contacts the switch contact at the bottom of the auxiliary switch after rotation.

[0013] Preferably, the first shaft, the second shaft, the third shaft and the fourth shaft are also provided with retaining springs.

[0014] Based on the same inventive concept, the present application also discloses a circuit breaker, including a circuit breaker body, wherein the circuit breaker body includes a rotating shaft, a tripping shaft, a tripping shaft, and a traction rod, wherein one end of the tripping shaft is fixedly mounted with a tripping shaft perpendicular to the tripping shaft and can rotate around and drive the tripping shaft, wherein the tripping shaft extends out of a side plate of an operating mechanism, wherein the rotating shaft, the traction rod and the tripping shaft are parallel, wherein a locking portion is radially extended outwardly from an upper edge of the traction rod, and wherein the circuit breaker further includes the aforementioned modular accessory module, wherein the accessory module is fixedly mounted on the circuit breaker body on one side of the side plate of the operating mechanism.

[0015] A modular accessory module and circuit breaker proposed in the present application integrate various circuit breaker accessories into the base to achieve a highly integrated, modular, small-volume, and low-cost accessory module solution. This solution can simultaneously meet the needs of four groups of auxiliary contacts, two groups of alarm contacts, and two groups of shunt or undervoltage release combinations with different voltage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural diagram of an embodiment of the accessory module of the present application installed on a circuit breaker body;

[0017] Figure 2 This is a schematic diagram of a three-dimensional exploded structure of an embodiment of an accessory module of the present application;

[0018] Figure 3 This is a three-dimensional structural diagram of an embodiment of an accessory module of the present application viewed from the rear side;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the auxiliary switch of the first embodiment of the accessory module of the present application during the operation process;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the front side of the alarm switch during the operation process of the first embodiment of the accessory module of this application;

[0021] Figure 6 This is a schematic diagram of the three-dimensional structure of the front side of the releaser during the operation process of the first embodiment of the accessory module of the present application;

[0022] Among them, 1-circuit breaker body, 11-accessory module, 1101-base, 11011-horizontal buckle, 11012-longitudinal buckle, 1102-base screw, 1103-shunt release, 11031-shunt reset push rod, 11032-, shunt release shaft, 1104-undervoltage release, 1105-alarm switch, 1106-auxiliary switch, 1107-pressure plate, 1108-pressure plate screw, 1109-first push rod, 11091-leg, 11092-push platform, 11093-push rod hole, 1110-first Second push rod, 1111-first axis, 1112-tripping rod, 11121-third push rod stop platform, 1113-second axis, 1114-third push rod, 11141-push strip, 11142-tripping rod stop strip, 1115-third axis, 1116-first reset torsion spring, 1117-second reset spring, 1118-auxiliary push rod, 1119-fourth axis, 1120-tripping spring, 1121-alarm push rod, 1122-circlip, 12-rotating shaft, 13-tripping shaft, 14-tripping, 15-traction rod, 151-locking part. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0024] The present embodiment provides a technical solution: a modular accessory module of the present application includes a base 1101, a release, an alarm switch 1105 and an auxiliary switch 1106. The base 1101 is provided with longitudinal release slots arranged in a regular horizontal direction. The release is vertically installed in the release slot from top to bottom. In the present embodiment, there are two release slots, one for installing a shunt release 1103 and the other for installing an undervoltage release 1104. The release slot is provided with a release at the slot position. The fixing structure fixes the releaser. In this embodiment, the releaser fixing structure includes a pressure plate 1107 and a longitudinal buckle 11012. The longitudinal buckle 11012 is set on the isolation ribs between the releaser slots. The pressure plate 1107 is pressed on the top surface of the releaser from above. The base 1101 is provided with pressure plate screw holes on the tops of both sides of all releaser slots. The pressure plate 1107 is fixed to the base 1101 using two pressure plate screws 1108 on both sides and the longitudinal buckle 11012 on the isolation ribs. The releaser fixing structure is not limited to this, and can also be fixed using a full screw pressure plate method or a full buckle pressure plate-free method.

[0025] Each of the trip devices includes a reset push rod that can rotate forward and backward around an axis and a trip shaft that can move forward and backward and be reset by the reset push rod. The front wall of each trip device slot is provided with an avoidance feature for the trip shaft. A trip device transmission structure is provided on the base 1101 and is connected to the circuit breaker body 1 to control the tripping and resetting of the trip device.

[0026] The release transmission structure in this embodiment includes a first push rod 1109, a second push rod 1110, a third push rod 1114, and a release rod 1112. The first push rod 1109 is transversely installed in a guide groove of a base 1101 below the release in a direction perpendicular to the release axis. The first push rod 1109 is provided with a leg 11091 extending out of the base 1101 along the radial extension of the rod, a push table 11092 contacting the bottom of the release push rod, and a push rod hole 11093 dynamically connected to one end of the second push rod. The first push rod 1109 moves vertically driven by the leg 11091, and the surface of the push table 11092 facing the bottom of the release push rod is an inclined surface so that the push table 1109 2 makes the trip push rod rotate forward around its axis when moving upward, the middle part of the second push rod 1110 is fixed to the side of the side plate of the base 1101 facing the operating mechanism through the first axis 1111, the second push rod 1110 rotates around the first axis 1111 and one end thereof extends into the push rod hole 11093 of the first push rod 1109, the trip rod 1112 is fixed to the bottom side of the front part of the base 1101 through the second axis 1113 parallel to the first axis 1111, the trip rod 1112 rotates around the second axis 1113 and one end thereof is suspended in the spring hanging hole provided on the side of the base 1101 through the vertical trip spring 1120, and the end of the trip rod 1112 is located at the other end of the second push rod 1110 The third push rod 1114 is fixed to the outer lower part of the front wall of the tripper slot at the front part of the base 1101 through a third axis 1115 parallel to the first axis 1111. A first reset torsion spring 1116 is also provided on one side of the third axis 1115. The first reset torsion spring 1116 in this embodiment adopts a straight arm torsion spring with a hook at one end. The spring 1116 connects the third push rod 1114 and the base 1101 so that the third push rod 1114 can be reset after rotating around the third axis 1115. The third push rod 1114 is radially provided with a trip rod stop bar 11142 extending outward and push bars 11141 with the same number as the trip device slots. The push bar 11141 is perpendicular to the trip axis of the trip device and the far axis end is located outside the avoidance feature for the trip axis of the base 1101 to support the trip axis. The end of the trip rod stop bar 11142 supports the third push rod stop platform 11121 of the trip rod 1112 and when the trip rod stop bar 11142 rotates backward, the trip rod 1112 is released to rotate upward when connected to one end of the trip spring 1120.

[0027] The release transmission structure is not limited to the above form, and an external tension spring or the like may be used to reset the push rod.

[0028] The base 1101 is provided with auxiliary switch slots arranged in a regular horizontal arrangement at the rear lower part of the tripper slot, and the slot of each auxiliary switch slot is provided with a switch fixing structure to fix the auxiliary switch 1106. In this embodiment, the switch fixing structure of the auxiliary switch slot is a horizontal buckle 11011, and the horizontal buckle 11011 is provided at the partition between the auxiliary switch slots and the rear side of the side plate of the sidemost auxiliary switch slot. Since the auxiliary switch slot is below the tripper slot, the switch fixing structure can also adopt a longitudinal buckle form, but it must be installed before the tripper is installed, and the independence is weak, so the horizontal buckle form is a better implementation method.

[0029] The base 1101 is provided with regularly arranged alarm switch slots in a horizontal direction on the side of the tripper slot facing the side plate of the operating mechanism, and the notch of each alarm switch slot is provided with a switch fixing structure to fix the alarm switch 1105. In this embodiment, the switch fixing structure of the alarm switch slot is a longitudinal buckle 11012, and the longitudinal buckle 11012 is provided on the top of the front and rear walls of the alarm switch slot. The switch fixing structure of the alarm switch slot can also adopt the switch fixing structure of the auxiliary switch slot.

[0030] The base 1101 has a notch at the bottom of each auxiliary switch slot and alarm switch slot to expose the switch contacts. The base 1101 is respectively provided with an alarm transmission structure and an auxiliary transmission structure that are connected to the circuit breaker body 1 to control the alarm switch and the auxiliary switch to transmit corresponding signals. In this embodiment, the alarm transmission structure includes an alarm push rod 1121, which is fixedly mounted on the end of the tripping shaft 13 facing the accessory module and rotates with the tripping shaft 13. After the far axis end of the alarm push rod 1121 rotates, it contacts the switch contact at the bottom of the alarm switch 1105; the auxiliary transmission structure includes an auxiliary push rod 1118, which is fixed to the bottom side of the rear portion of the base 1101 via a fourth axis 1119 parallel to the first axis 1111. The fourth shaft 1119 is also provided with a second reset torsion spring 1117. The second reset torsion spring 1117 adopts a parallel double torsion spring in this embodiment. The second reset torsion spring 1117 connects the auxiliary push rod 1118 and the base 1101 so that the auxiliary push rod 1118 can be reset after rotating around the fourth shaft 1119. The auxiliary push rod 1118 is mounted on the first push rod 1109 at one distal end of the fourth shaft 1119, and the other distal end contacts the switch contact at the bottom of the auxiliary switch 1106 after rotation. The alarm transmission structure is not limited to the above-mentioned embodiment, and can also be implemented by fixing a special-shaped spring at one end of the tripping shaft 13. The auxiliary transmission structure is also not limited to the above-mentioned form, and can also be reset by an external tension spring or the like, and can also be reset by an external tension spring or the like.

[0031] In this embodiment, the first shaft 1111, the second shaft 1113, the third shaft 1115, and the fourth shaft 1119 adopt a screw structure with a head. In order to make the fixation of the shaft more stable, a retaining spring 1122 is also installed on these shafts. When a thread is set at the tail of the screw, other structures such as nuts can also be used for fixation.

[0032] Based on the same inventive concept, the present application also discloses a circuit breaker, which includes a circuit breaker body 1 and the aforementioned modular accessory module 11. The circuit breaker body 1 includes a rotating shaft 12, a tripping shaft 13, a tripping shaft 14, a traction rod 15 and other common parts of a circuit breaker. The tripping shaft 13 is fixedly installed at one end of the tripping shaft 14 and is perpendicular to the tripping shaft 13 and can rotate around and drive the tripping shaft 13. The tripping shaft 13 extends out of the side plate of the operating mechanism. The rotating shaft 12, the traction rod 15 and the tripping shaft 13 are parallel. The traction rod 15 has a lock extending radially outward. The accessory module 11 is fixedly mounted on the circuit breaker body 1 on one side of the operating mechanism side plate. In this embodiment, the base 1101 is provided with three screw deep holes fixedly connected to the circuit breaker body 1, and the corresponding positions of the circuit breaker body 1 are also provided with threaded holes. The accessory module 11 is fastened to the circuit breaker body 1 by three base screws 1102. The fixing method is not limited to fastener fixing, and a longitudinal buckle may be provided at the bottom of the base 1101, and a buckle groove may be provided at the corresponding position of the circuit breaker body 1.

[0033] During the closing process of the circuit breaker, the rotating shaft 12 turns counterclockwise and uses the protruding part at the rear to push the first push rod 1109 upward, thereby pushing the auxiliary push rod 1118 to rotate clockwise, and the contacts at the bottom of the auxiliary switch 1106 are released to transmit the switch opening signal, and vice versa.

[0034] During the tripping process of the circuit breaker, the tripping button 14 rotates clockwise, and the tripping button shaft 13 rotates clockwise synchronously, driving the auxiliary push rod 1118 to rotate clockwise, and the contact at the bottom of the alarm switch 1105 is released to transmit the tripping signal, and vice versa.

[0035] The shunt release 1103 controls the tripping process as follows: the shunt release 1103 receives the tripping signal, the shunt tripping shaft 11032 of the shunt release 1103 pops out and releases, pushing the third push rod 1114 to rotate counterclockwise, the tripping rod gear bar 11142 of the third push rod 1114 releases the tripping rod 1112, the tripping rod 1112 rotates counterclockwise to strike the locking part 151 of the traction rod 15 of the mechanism, and the circuit breaker is tripped.

[0036] The reset process of the shunt release 1103 is as follows: after the circuit breaker is tripped, the rotating shaft 12 rotates counterclockwise, pushing the first push rod 1109 to move upward. On the one hand, it pushes the shunt reset push rod 11031 to reset the shunt trip shaft 11032 of the shunt release 1103. On the other hand, it pushes the second push rod 1110 to rotate counterclockwise, pressing the trip rod 1112. The trip rod 1112 overcomes the reaction force of the trip spring 1120 and rotates clockwise, engaging with the third push rod 1114. At this time, the switch can be opened and closed normally.

[0037] The holding process of the undervoltage release 1104 is as follows: the undervoltage release 1104 receives a voltage signal, and the tripping shaft of the undervoltage release 1104 remains attracted. At this time, when the switch is loaded, the rotating shaft 12 rotates counterclockwise, pushing the first push rod 1109 to move upward. On the one hand, it pushes the undervoltage reset push rod so that the tripping shaft of the undervoltage release 1104 can be powered on and reset. On the other hand, it pushes the second push rod 1110 to rotate counterclockwise, pressing the tripping rod 1112. The tripping rod 1112 overcomes the reaction force of the tripping spring 1120 and rotates clockwise, and engages with the third push rod 1114. At this time, the switch can be opened and closed normally.

[0038] The tripping process of the undervoltage releaser 1104 is as follows: when the voltage of the undervoltage releaser 1104 is lower than the holding voltage, the tripping shaft of the undervoltage releaser 1104 pops out and releases, pushing the third push rod 1114 to rotate counterclockwise, the tripping rod gear bar 11142 of the third push rod 1114 releases the tripping rod 1112, and the tripping rod 1112 rotates counterclockwise to strike the locking part 151 of the traction rod 15 of the mechanism, and the circuit breaker is tripped.

[0039] In the description of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0040] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and inventive concept of the present application, which should be covered by the protection scope of the present application.

Claims

1. A modular accessory module, characterized in that: The invention comprises a base (1101), a tripper, an alarm switch (1105) and an auxiliary switch (1106); the base (1101) is provided with longitudinal tripper slots which are regularly arranged horizontally; the tripper is vertically installed in the tripper slots from top to bottom; a tripper fixing structure is provided at the slot position of the tripper slot to fix the tripper; each of the trippers comprises a reset push rod which can rotate forward and backward around an axis and a tripping shaft which can move forward and backward and can be reset by the reset push rod; a front wall of each of the tripper slots is provided with an avoidance feature for the tripping shaft; a tripper transmission structure is provided on the base (1101) to connect with the circuit breaker body (1) to control the tripping and resetting of the tripper; the base (1101) is provided with a tripper transmission structure which is connected with the circuit breaker body (1) to control the tripping and resetting of the tripper; the base (1101) is provided with a tripper transmission structure which is connected with the circuit breaker body (1) to control the tripping and resetting of the tripper; the tripper is fixed to the base (1101) at the time of the tripping. Auxiliary switch slots arranged in a regular transverse arrangement are arranged at the rear lower part of the tripper slot, and a switch fixing structure is arranged at the notch of each auxiliary switch slot to fix the auxiliary switch (1106); the base (1101) is provided with alarm switch slots arranged in a regular transverse arrangement on the side of the tripper slot facing the side plate of the operating mechanism, and a switch fixing structure is arranged at the notch of each alarm switch slot to fix the alarm switch (1105); the base (1101) is provided with a notch at the bottom of each auxiliary switch slot and the alarm switch slot to expose the switch contact; and an alarm transmission structure and an auxiliary transmission structure are respectively arranged on the base (1101) to connect with the circuit breaker body (1) to control the alarm switch and the auxiliary switch to transmit corresponding signals.

2. The modular accessory module according to claim 1, characterized in that: There are two release slots, one for installing a shunt release (1103) and the other for installing an undervoltage release (1104).

3. The modular accessory module according to claim 1, characterized in that: The releaser fixing structure comprises a pressure plate (1107) and a longitudinal buckle (11012), wherein the longitudinal buckle (11012) is arranged on the isolation ribs between the releaser slots, and the pressure plate (1107) is pressed on the top surface of the releaser from above, and the base (1101) is provided with pressure plate screw holes at the tops of both sides of all the releaser slots, and the pressure plate (1107) is fixed by using the pressure plate screws (1108) on both sides and the longitudinal buckle (11012) on the isolation ribs at the same time.

4. The modular accessory module according to claim 1, characterized in that: The switch fixing structure of the auxiliary switch slot is a transverse buckle (11011), and the transverse buckle (11011) is arranged on the partition between the auxiliary switch slots and the rear side of the side plate of the sidemost auxiliary switch slot.

5. The modular accessory module according to claim 1, characterized in that: The switch fixing structure of the alarm switch slot is a longitudinal buckle (11012), and the longitudinal buckle (11012) is arranged on the top of the front and rear walls of the alarm switch slot.

6. The modular accessory module according to claim 1, characterized in that: The release transmission structure comprises a first push rod (1109), a second push rod (1110), a third push rod (1114), and a release rod (1112); the first push rod (1109) is transversely installed in a guide groove of a base (1101) below the release in a direction perpendicular to the release axis; the first push rod (1109) is provided with a leg portion (11091) extending out of the base (1101) along the radial direction of the rod portion, a push table (11092) contacting the bottom of the release push rod, and a push rod hole (11093) dynamically connected to one end of the second push rod; the first push rod (1109) moves vertically under the drive of the leg portion (11091); the surface of the push table (11092) facing the bottom of the release push rod is an inclined surface so that the push table (11091) is inclined. 92) moves upward, causing the trip push rod to rotate forward around its axis; the middle part of the second push rod (1110) is fixed to the side of the side plate of the base (1101) facing the operating mechanism through the first axis (1111); the second push rod (1110) rotates around the first axis (1111) and one end thereof extends into the push rod hole (11093) of the first push rod (1109); the trip rod (1112) is fixed to the bottom side of the front part of the base (1101) through a second axis (1113) parallel to the first axis (1111); the trip rod (1112) rotates around the second axis (1113) and one end thereof is suspended in a spring hanging hole arranged on the side of the base (1101) through a vertical trip spring (1120); the end of the trip rod (1112) is in a The tripping rod (1112) is located below the other end of the second push rod (1110) and is struck to rotate around the second axis (1113) when the other end of the second push rod (1110) rotates downward. The other end of the tripping rod (1112) contacts the locking portion (151) on the traction rod (15) of the circuit breaker body (1). The end of the tripping rod (1112) connected to the tripping spring (1120) is also provided with a third push rod stopper (11121). The third push rod (1114) is fixed to the outer lower part of the front wall of the tripping device slot at the front of the base (1101) through a third axis (1115) parallel to the first axis (1111). A first reset torsion spring (1116) is also provided on one side of the third axis (1115). The first reset torsion spring (1116) is connected to the tripping spring (1120). The third push rod (1114) and the base (1101) enable the third push rod (1114) to be reset after rotating around the third axis (1115); the third push rod (1114) is provided with a tripping rod stop bar (11142) extending outward in the radial direction and push bars (11141) the same in number as the number of the tripping device slots; the push bars (11141) are perpendicular to the tripping axis of the tripping device and the distal end of the push bars (11141) is located outside the avoidance feature for the tripping axis of the base (1101) to support the tripping axis; the end of the tripping rod stop bar (11142) supports the third push rod stop platform (11121) of the tripping rod (1112) and when the tripping rod stop bar (11142) rotates backward, the tripping rod (1112) is released to rotate upward at one end connected to the tripping spring (1120).

7. The modular accessory module according to claim 1, characterized in that: The alarm transmission structure comprises an alarm push rod (1121), which is fixedly mounted on the end of the tripping shaft (13) facing the accessory module and rotates with the tripping shaft (13), and the far-axis end of the alarm push rod (1121) contacts the bottom switch contact of the alarm switch (1105) after rotation.

8. The modular accessory module according to claim 6, characterized in that: The auxiliary transmission structure comprises an auxiliary push rod (1118), wherein the auxiliary push rod (1118) is fixed to the bottom side of the rear part of the base (1101) via a fourth axis (1119) parallel to the first axis (1111), and a second reset torsion spring (1117) is also mounted on the fourth axis (1119). The second reset torsion spring (1117) connects the auxiliary push rod (1118) and the base (1101) so that the auxiliary push rod (1118) can be reset after rotating around the fourth axis (1119). The auxiliary push rod (1118) is supported on the first push rod (1109) at one distal end of the fourth axis (1119), and the other distal end contacts the bottom switch contact of the auxiliary switch (1106) after rotating.

9. The modular accessory module according to claim 8, characterized in that: A retaining spring (1122) is also installed on the first shaft (1111), the second shaft (1113), the third shaft (1115), and the fourth shaft (1119).

10. A circuit breaker, comprising a circuit breaker body (1), the circuit breaker body (1) comprising a rotating shaft (12), a tripping shaft (13), a tripping shaft (14), and a traction rod (15), one end of the tripping shaft (14) being fixedly mounted with a tripping shaft (13) perpendicular thereto and being capable of rotating around and driving the tripping shaft (13), the tripping shaft (13) extending out of an operating mechanism side plate, the rotating shaft (12), the traction rod (15) and the tripping shaft (13) being parallel, the traction rod (15) having a locking portion (151) extending radially outward, characterized in that: The circuit breaker further comprises a modular accessory module (11) as claimed in claims 1 to 9, wherein the accessory module (11) is fixedly mounted on the circuit breaker body (1) on one side of the operating mechanism side plate.

Images