CN212113598U - Auxiliary alarm integrated electrical accessory of circuit breaker - Google Patents

Abstract

The utility model discloses an electric annex of supplementary warning integral type of circuit breaker, including shell, operating device, hasp and jump the knot, operating device is including handle and connecting rod, and the one end of connecting rod articulates on the handle, still including supplementary contact module and alarm contact module, supplementary contact module, alarm contact module correspond respectively and are connected with right wiring end group and left wiring end group. The auxiliary and alarm functions are achieved on the single electrical accessory, the width of the product keeps the 9 mm width of the single electrical accessory unchanged, the occupied volume of the circuit environment of the auxiliary alarm electrical accessory is effectively reduced, more installation space is saved for a user, and complicated circuit connection environment is relieved to a certain extent.

Description

Auxiliary alarm integrated electrical accessory of circuit breaker

Technical Field

The utility model relates to a circuit breaker annex field specifically is an electric annex of supplementary warning integral type of circuit breaker.

Background

An electrical accessory is one of the most common electrical devices in the auxiliary units of circuit breakers. The auxiliary electrical accessory is generally divided into an auxiliary electrical accessory and an alarm electrical accessory, wherein the auxiliary electrical accessory controls and indicates three states of breaking, closing and tripping of the circuit breaker through on/off switching of a contact, and the alarm electrical accessory sends out an alarm signal when a fault is tripped. In the prior art, an auxiliary accessory and an alarm accessory of a circuit breaker are generally of separate independent structures and are assembled independently, and the auxiliary accessory and the alarm accessory are required to be installed independently when the circuit breaker is used. In many circuit workplaces, because circuit electrical apparatus's demand, need be listed as the auxiliary fixtures simultaneously, the warning annex, however, usable space itself is just nervous in the workplace, adorn an electrical accessory more and increased the volume that whole electrical apparatus was listed as row undoubtedly, current circuit breaker electrical accessory structure is complicated moreover, and can't have supplementary and alarming function simultaneously on an electrical accessory, the function is single, still can cause the circuit connection environment to a certain extent complicated, leave hidden danger to line connection, this has brought the installation degree of difficulty not little for operating personnel.

Disclosure of Invention

The utility model aims at: in order to overcome the defects of the prior art, the utility model provides an auxiliary alarm integrated electrical accessory of circuit breaker.

The technical scheme of the utility model: the intelligent alarm device comprises a shell, an operating mechanism, a lock catch and a jump buckle, wherein the operating mechanism comprises a handle and a connecting rod, one end of the connecting rod is hinged to the handle, the intelligent alarm device also comprises an auxiliary contact module and an alarm contact module, and the auxiliary contact module and the alarm contact module are respectively and correspondingly connected with a right wiring end group and a left wiring end group; the auxiliary contact module comprises an auxiliary contact frame, an auxiliary spring and a microswitch fixedly arranged in the shell, the upper part of the auxiliary contact frame is coaxially arranged with the jump buckle, and when the jump buckle rotates, the auxiliary contact frame can be driven to synchronously rotate; in a closing state, the lock catch is meshed with the tripping buckle, and the lock catch is linked with the other end of the connecting rod; one end of the auxiliary spring is fixed on the shell, and the other end of the auxiliary spring is fixed at the bottom end of the auxiliary contact frame; the microswitch comprises a contact arm, a common contact, a normally open contact and a normally closed contact, wherein the right wiring end group comprises a right wiring end connected with a normally open contact lead, a right wiring end connected with a normally closed contact lead and a right three wiring end connected with a common contact lead, the auxiliary contact frame is provided with a pressing surface facing the contact arm, and the auxiliary contact frame is abutted against or separated from the contact arm under the control of the handle so as to be used for switching the connection state of the microswitch; the alarm contact module comprises an alarm contact frame, an alarm spring, a first fixed contact, a second fixed contact and a movable contact spring sheet, the alarm contact frame is coaxially arranged above the auxiliary contact frame, a contact surface which is abutted to the alarm contact frame is arranged between the alarm contact frame and the auxiliary contact frame, a groove is formed in the bottom of the alarm contact frame, and the left wiring end group comprises a left wiring end which is electrically connected with the first fixed contact, a left wiring end which is electrically connected with the second fixed contact and a left wiring end; one end of the movable contact elastic sheet is electrically connected with the left three wiring ends, the other end of the movable contact elastic sheet is positioned between the first fixed contact and the second fixed contact, the middle position of the movable contact elastic sheet penetrates through the groove, and the alarm contact frame is abutted against the movable contact elastic sheet through the groove wall of the groove under the control of the handle to move the movable contact elastic sheet so as to be used for switching contact connection between the first fixed contact and the second fixed contact by the movable contact elastic sheet; one end of the alarm spring is fixed to the housing, and the other end of the alarm spring is fixed to one side end of the auxiliary contact frame.

The utility model discloses a further setting: the below of handle is equipped with the handle draw-in groove, the warning touches the frame and still is provided with the support arm, at the circuit breaker state of breaking, the support arm card is gone into the handle draw-in groove, in order to restrict the warning touches the frame motion.

By adopting the technical scheme, the auxiliary and alarm functions are realized on a single electrical accessory, the width of the product keeps the 9 mm width of the single electrical accessory unchanged, the occupied volume of the circuit environment of the auxiliary alarm electrical accessory is effectively reduced, more installation space is saved for a user, and the complicated circuit connection environment is relieved to a certain extent.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural view of the hidden alarm touch frame of the present invention;

the auxiliary contact module 1, the alarm contact module 2, the housing 3, the operating mechanism 4, the latch 5, the jump buckle 6, the handle 41, the connecting rod 42, the handle slot 43, the auxiliary contact frame 11, the auxiliary spring 12, the micro switch 13, the contact arm 131, the common contact 132, the normally open contact 133, the normally closed contact 134, the right terminal group 7, the left terminal group 8, the right terminal 71, the right terminal 72, the right terminal 73, the pressing surface 111, the alarm contact frame 21, the alarm spring 22, the first fixed contact 23, the second fixed contact 24, the movable contact spring piece 25, the contact surface 211, the groove 212, the left terminal 81, the left terminal 82, the left terminal 83 and the support arm 213.

Detailed Description

As shown in fig. 1 and 2, the auxiliary alarm integrated electrical accessory for a circuit breaker includes an auxiliary contact module 1, an alarm contact module 2, a housing 3, an operating mechanism 4, a latch 5 and a jump buckle 6, wherein the auxiliary contact module 1 and the alarm contact module 2 are respectively and correspondingly connected with a right terminal group 7 and a left terminal group 8; the operating mechanism 4 comprises a handle 41 and a connecting rod 42, one end of the connecting rod 42 is hinged on the handle, and the auxiliary contact module 1 comprises an auxiliary contact frame 11, an auxiliary spring 12 and a microswitch 13 fixedly arranged in the shell. The upper portion of the auxiliary contact frame 11 and the jump buckle 6 are coaxially installed, when the jump buckle 6 rotates, the auxiliary contact frame 11 can be driven to synchronously rotate, the lock catch 5 and the jump buckle 6 are arranged in an engaged mode in a closing state, the lock catch 5 is linked with the other end of the connecting rod 42, when in a closing process, the handle 41 acts on the lock catch 5 through the connecting rod 42, and the jump buckle 6 is driven to move due to the engagement of the lock catch 5 and the jump buckle 6. One end of the auxiliary spring 12 is fixed to the housing 3, and the other end of the auxiliary spring 12 is fixed to the bottom end of the auxiliary touch frame 11 for providing a restoring tension of the auxiliary touch frame 11. The microswitch 13 comprises a contact arm 131, a common contact 132, a normally open contact 133 and a normally closed contact 134, the right terminal group 7 comprises a right terminal 71 connected with the normally open contact 133 through a lead, a right second terminal 72 connected with the normally closed contact 134 through a lead and a right three terminal 73 connected with the common contact 132 through a lead, the auxiliary contact frame 11 is provided with a pressing surface 111 facing the contact arm 131, the auxiliary contact frame 11 swings in a linkage manner under the control of the handle 41, the pressing surface 111 abuts against or is separated from the contact arm 131 so as to be used for switching the connection state of the microswitch 13, and on/off switching between the right first terminal 71 and the right second terminal 72 of the right three terminal 73 is realized; the alarm contact module 2 comprises an alarm contact frame 21, an alarm spring 22, a first fixed contact 23, a second fixed contact 24 and a movable contact spring piece 25, the alarm contact frame 21 is coaxially arranged above the auxiliary contact frame 11, a contact surface 211 which is abutted with the alarm contact frame 21 and the auxiliary contact frame 11 is arranged between the alarm contact frame 21 and the auxiliary contact frame 11, the bottom of the alarm contact frame 21 is provided with a groove 212, and the left wiring end group 8 comprises a left wiring end 81 which is electrically connected with the first fixed contact 23, a left wiring end 82 which is electrically connected with the second fixed contact 24 and a left wiring end 83; one end of the movable contact elastic sheet 25 is electrically connected with the left three wiring terminals 83, the other end of the movable contact elastic sheet is positioned between the first fixed contact 23 and the second fixed contact 24, the middle position of the movable contact elastic sheet penetrates through the groove 212, when the circuit breaker is tripped due to a fault, the alarm contact frame 21 is controlled by the handle 41 to swing in a linkage manner, the groove wall of the groove 212 abuts against the movable contact elastic sheet 25 to enable the movable contact elastic sheet 25 to move, and the movable contact elastic sheet 25 is used for switching contact connection between the first fixed contact 23 and the second fixed contact 24; one end of the alarm spring 22 is fixed to the housing 3, and the other end of the alarm spring 22 is fixed to one side end of the auxiliary touch frame 11 for providing a reset tension of the alarm touch frame 21. The movable contact spring piece 25 and the contact arm 131 of the microswitch 13 have resilience, and the operation mechanism can be assisted to return to the original position after being reset.

A handle clamping groove 43 is arranged below the handle 41, the alarm contact frame 21 is also provided with a support arm 213, and in the breaking state of the circuit breaker, the support arm 213 is clamped into the handle clamping groove 43 to limit the movement of the alarm contact frame 21.

The utility model discloses a theory of operation is: when the breaker is switched on and off, the handle 41 is pulled, the handle 41 acts on the lock catch 5 through the connecting rod 42, and the lock catch 5 and the trip catch 6 are in a closing occlusion state or an opening separation state at the moment. In the auxiliary function, when the jumper 6 moves, because the jumper 6 is coaxially installed on the auxiliary contact frame 11, the auxiliary contact frame 11 is driven to overcome or move under the pulling force of the auxiliary spring 12, the pressing surface 111 presses or separates the contact arm 131 of the microswitch 13, the common contact 132 is switched and communicated with the normally closed contact 134 and the normally open contact 133, and the switching connection between the right three terminal 73 and the right two terminal 72 and the right one terminal 71 is realized. In the alarm function, as the contact surface 211 which is abutted against the auxiliary contact frame 11 and the alarm contact frame 21 is arranged, the alarm contact frame 21 can be pushed to swing during switching on, the groove wall of the groove 212 of the alarm contact frame 21 is contacted with the movable contact elastic sheet 25 and abutted against and touched, so that the movable contact elastic sheet 25 moves, the movable contact elastic sheet 25 is contacted and connected with the second static contact 24, the left three terminal and the left two terminal are communicated, and the condition that the tripping fault does not occur in the circuit breaker is indicated; during the separating brake, the support arm 213 of the alarm contact frame 21 slides and is clamped into the handle clamping groove 43, therefore, when the auxiliary contact frame 11 rotates anticlockwise, the alarm contact frame 21 is not driven to rotate synchronously, the movable contact spring piece 25 does not act, and the state still is: the movable contact spring piece 25 is connected with the second fixed contact 24 and separated from the first fixed contact 23, and still indicates that the circuit breaker has not a trip tripping fault. When a fault tripping and tripping accident occurs, the tripping buckle 6 acts along with the handle 41, and the meshing linkage of the lock 5 is released; the auxiliary contact frame 11 rotates counterclockwise under the pulling force of the auxiliary spring 12, and the common contact 132 is separated from the normally closed contact 134 and connected to the normally open contact 133. When the auxiliary contact frame 11 rotates counterclockwise, the limit function of the alarm contact frame 21 is released, so that the alarm contact frame 21 moves counterclockwise under the pulling force of the alarm spring 22, and the movable contact spring piece 25 is separated from the second fixed contact 24 and connected with the first fixed contact 23. Thus, when the breaker is in a fault tripping state, the common contact 132 is connected with the normally open contact 133 to indicate the opening state of the breaker; the movable contact spring piece 25 is connected with the first fixed contact 23 and indicates that the circuit breaker has a tripping and tripping fault.

Claims (2)

1. The utility model provides an electric annex of supplementary warning integral type of circuit breaker, is including shell, operating device, hasp and jump the knot, operating device is including handle and connecting rod, the one end of connecting rod articulates on the handle, its characterized in that: the intelligent alarm terminal also comprises an auxiliary contact module and an alarm contact module, wherein the auxiliary contact module and the alarm contact module are respectively and correspondingly connected with a right wiring end group and a left wiring end group; the auxiliary contact module comprises an auxiliary contact frame, an auxiliary spring and a microswitch fixedly arranged in the shell, the upper part of the auxiliary contact frame is coaxially arranged with the jump buckle, and when the jump buckle rotates, the auxiliary contact frame can be driven to synchronously rotate; in a closing state, the lock catch is meshed with the tripping buckle, and the lock catch is linked with the other end of the connecting rod; one end of the auxiliary spring is fixed on the shell, and the other end of the auxiliary spring is fixed at the bottom end of the auxiliary contact frame; the microswitch comprises a contact arm, a common contact, a normally open contact and a normally closed contact, wherein the right wiring end group comprises a right wiring end connected with a normally open contact lead, a right wiring end connected with a normally closed contact lead and a right three wiring end connected with a common contact lead, the auxiliary contact frame is provided with a pressing surface facing the contact arm, and the auxiliary contact frame is abutted against or separated from the contact arm under the control of the handle so as to be used for switching the connection state of the microswitch;

the alarm contact module comprises an alarm contact frame, an alarm spring, a first fixed contact, a second fixed contact and a movable contact spring sheet, the alarm contact frame is coaxially arranged above the auxiliary contact frame, a contact surface which is abutted to the alarm contact frame is arranged between the alarm contact frame and the auxiliary contact frame, a groove is formed in the bottom of the alarm contact frame, and the left wiring end group comprises a left wiring end which is electrically connected with the first fixed contact, a left wiring end which is electrically connected with the second fixed contact and a left wiring end; one end of the movable contact elastic sheet is electrically connected with the left three wiring ends, the other end of the movable contact elastic sheet is positioned between the first fixed contact and the second fixed contact, the middle position of the movable contact elastic sheet penetrates through the groove, and the alarm contact frame is abutted against the movable contact elastic sheet through the groove wall of the groove under the control of the handle to move the movable contact elastic sheet so as to be used for switching contact connection between the first fixed contact and the second fixed contact by the movable contact elastic sheet; one end of the alarm spring is fixed to the housing, and the other end of the alarm spring is fixed to one side end of the auxiliary contact frame.

2. The auxiliary alarm integrated electrical accessory of circuit breaker as claimed in claim 1, wherein: the below of handle is equipped with the handle draw-in groove, the warning touches the frame and still is provided with the support arm, at the circuit breaker state of breaking, the support arm card is gone into the handle draw-in groove, in order to restrict the warning touches the frame motion.

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