CN215869222U - Plug-in circuit breaker - Google Patents

Abstract

The utility model provides a plug-in circuit breaker, includes two at least circuit breaker poles that set up side by side, be equipped with the operating device that link gear and link gear are connected in every circuit breaker pole, still include that both ends extend to the electric drive mechanism of two circuit breaker poles respectively, the link gear of two circuit breaker poles passes through the linkage shaft linkage, the electric drive mechanism cooperates the automatic divide-shut brake of this circuit breaker pole of drive with the link gear of one of them circuit breaker pole, and the link gear of this circuit breaker pole passes through the automatic divide-shut brake of all the other circuit breaker poles of linkage shaft drive. According to the plug-in circuit breaker, the electric operation transmission mechanism in the driving module is connected between two adjacent circuit breaker poles in a penetrating mode, the driving module directly drives one circuit breaker pole, the other circuit breaker poles are driven by the linkage mechanism, and the circuit breaker poles share one electric operation transmission mechanism, so that the driving module is prevented from being arranged inside one circuit breaker pole, and the internal space of the circuit breaker pole is saved.

Description

Plug-in circuit breaker

Technical Field

The utility model relates to the field of low-voltage electrical appliances, in particular to a plug-in circuit breaker.

Background

With the rapid development of the communication industry, the intelligentization and miniaturization trends of the circuit breaker become more and more obvious, and the size and function requirements of the system on the circuit breaker are higher and higher. The current plug-in circuit breaker that has the remote control function, its inside overall arrangement adopts to put drive module in inside and carries out signal transmission and mechanism motion control, and not only occupation space is unfavorable for mechanism motion control moreover to so overall arrangement, makes the unable requirement that satisfies intellectuality and miniaturization simultaneously of circuit breaker.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a plug-in circuit breaker which is simple in structure, high in reliability, small in occupied space and convenient to assemble.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a plug-in circuit breaker, includes two at least circuit breaker poles that set up side by side, be equipped with the operating device that link gear and link gear are connected in every circuit breaker pole, still include that both ends extend to the electric drive mechanism of two circuit breaker poles respectively, the link gear of two circuit breaker poles passes through the linkage shaft linkage, the electric drive mechanism cooperates the automatic divide-shut brake of this circuit breaker pole of drive with the link gear of one of them circuit breaker pole, and the link gear of this circuit breaker pole passes through the automatic divide-shut brake of all the other circuit breaker poles of linkage shaft drive.

Furthermore, an avoidance space is reserved on one side of the linkage mechanism of the two breaker poles, the avoidance spaces of the two breaker poles are kept right opposite, and two ends of the electric operation transmission mechanism respectively extend into the two avoidance spaces.

Further, the two ends of the electric operating transmission mechanism vertically extend into the two breaker poles along the thickness direction of the two breaker poles.

Further, the electric operating transmission mechanism comprises a motor and a gear set, the output end of the motor is meshed with the gear set, the gear set extends into one circuit breaker pole and is connected with a linkage mechanism in the circuit breaker pole, and the other end of the motor extends into the other circuit breaker pole.

Furthermore, the circuit breaker also comprises a partition board () and a circuit board, wherein the partition board is arranged between the two breaker poles, and the circuit board is connected with the electric operating transmission mechanism and assembled on the partition board.

Further, the same side of baffle is equipped with the first mounting groove that is used for the mounting circuit board and is used for installing the second mounting groove of electrically operated transmission mechanism, the degree of concavity of second mounting groove is greater than the degree of concavity of first mounting groove, makes the tank bottom of second mounting groove to the another side protrusion of baffle.

Further, the circuit board is laid along the tank bottom of first mounting groove, and the electricity behaviour drive mechanism includes motor and gear train, the motor assembly is in the second mounting groove and extend to a circuit breaker utmost point through the second mounting groove in, the output and the gear train drive of motor are connected, and the gear train extends to another circuit breaker utmost point.

Further, the one end of every circuit breaker utmost point is equipped with inlet wire socket as the inlet wire end be equipped with inlet wire terminal in the inlet wire socket, and the other end of the circuit breaker utmost point is equipped with outlet and button hole as the outlet wire terminal be equipped with outlet terminal and button mechanism in outlet and the button hole respectively, link gear sets up between operating device and button mechanism, button mechanism passes through the link gear and realizes operating device's manual operation.

Furthermore, the linkage mechanism comprises a linkage piece, the linkage piece is rotatably assembled in the circuit breaker pole, the linkage piece is connected with the button mechanism through a first connecting rod and is connected with the operating mechanism through a second connecting rod, gear teeth are arranged on the linkage piece, and the linkage piece is linked with the linkage pieces in other circuit breaker poles through a linkage shaft.

Furthermore, a contact mechanism, an arc extinguish chamber, a short-circuit protection mechanism and an overload protection mechanism are arranged between the operating mechanism and the incoming line terminal of each circuit breaker pole, a moving contact of the contact mechanism is connected with the operating mechanism, and a static contact of the contact mechanism is fixedly arranged and is opposite to the moving contact;

the operating mechanism comprises a contact support, a jump buckle and a lock catch, the contact support is rotatably assembled on the first base, the jump buckle and the lock catch are rotatably assembled on the contact support, the jump buckle is connected with the lock catch hasp, and the jump buckle is connected with the second connecting rod;

the button mechanisms of the at least two breaker poles are linked through the handle linkage piece at one ends extending out of the button holes, and the latches of the operating mechanisms of the at least two breaker poles are linked through the latch linkage piece.

According to the plug-in circuit breaker, the electric operation transmission mechanism in the driving module is connected between two adjacent circuit breaker poles in a penetrating mode, the driving module directly drives one circuit breaker pole, the other circuit breaker poles are driven by the linkage mechanism, and the circuit breaker poles share one electric operation transmission mechanism, so that the driving module is prevented from being arranged inside one circuit breaker pole, and the internal space of the circuit breaker pole is saved.

In addition, through optimizing the internal space structure of the circuit breaker poles, an avoidance space is reserved in the circuit breaker poles, the avoidance space provides a main assembly space of the electric operation transmission mechanism, and particularly, the avoidance space of the two circuit breaker poles is right, so that the electric operation transmission mechanism can vertically penetrate into the two circuit breaker poles, the whole thickness is reduced, and the transmission efficiency is improved.

In addition, two adjacent circuit breaker poles are separated by the partition plate, and meanwhile, the partition plate also provides an assembly position for the electric operation transmission mechanism and the circuit board, so that the circuit breaker is convenient to assemble.

Drawings

Fig. 1 is a schematic diagram of a plug-in circuit breaker of the present invention;

fig. 2 is a schematic view of a plug-in circuit breaker according to the present invention after the separation of the drive module from the first circuit breaker pole;

FIG. 3 is a schematic diagram of a plug-in circuit breaker according to the present invention after the driving module is separated from the first and second breaker poles;

fig. 4 is an exploded schematic view of a plug-in circuit breaker of the present invention;

fig. 5 is a schematic structural view of a first base in a plug-in circuit breaker according to the present invention;

fig. 6 is a schematic view of the internal structure of a circuit breaker pole in a plug-in circuit breaker according to the present invention;

FIG. 7 is a front view of FIG. 6;

fig. 8 is a schematic view of the connection of a current transformer in a plug-in circuit breaker according to the present invention;

fig. 9-10 are schematic structural views of a partition in a plug-in circuit breaker according to the present invention;

FIG. 11 is an enlarged schematic view (front) of the portion D of FIG. 10;

fig. 12 is an enlarged schematic view (side view) of a portion D in fig. 10.

Detailed Description

The following describes a plug-in circuit breaker according to an embodiment of the present invention with reference to the embodiments shown in fig. 1 to 12. A plug-in type circuit breaker of the present invention is not limited to the description of the following embodiments.

As shown in fig. 1 and 6, a plug-in circuit breaker includes at least two breaker poles arranged in parallel, two ends of each breaker pole are respectively used as a wire inlet end and a wire outlet end, a wire inlet is arranged at the wire inlet end, a wire outlet 51 and a button hole are arranged at the wire outlet end, a wire inlet terminal 481 is assembled in the wire inlet, a wire outlet terminal 482 and a button mechanism 41 are respectively assembled at the wire outlet 51 and the button hole, a linkage mechanism 42, an operating mechanism 43 and a contact mechanism which are linked with the button mechanism 41 are arranged in each breaker pole, and switching on and off of the breaker poles are manually operated by pressing or pulling the button mechanism 41. Preferably, an overcurrent protection mechanism is provided in at least one of the circuit breaker poles, including a short circuit protection mechanism 44 and/or an overload protection mechanism 47 to provide protection against tripping and de-energizing the circuit breaker in the event of a short circuit fault or overload fault in the circuit.

An improvement point of the application lies in that the linkage mechanisms 42 of two adjacent breaker poles are linked through the linkage shaft, and when one breaker pole is opened or closed, the other breaker poles are driven to synchronously open or close under the driving of the linkage mechanisms 42, so that all the breaker poles realize synchronous action opening and closing.

Another improvement point of this application lies in, the circuit breaker still includes an electrical control drive mechanism 33, as shown in fig. 1-7, in the both ends of electrical control drive mechanism 33 extended to two circuit breaker utmost points respectively, electrical control drive mechanism 33 and the link gear 42 cooperation drive this circuit breaker utmost point automatic divide-shut brake of one of them circuit breaker utmost point, and the link gear 42 of this circuit breaker utmost point drives all the other automatic divide-shut brake of circuit breaker utmost point through the universal driving shaft, and the automatic divide-shut brake of this circuit breaker utmost point is by electrical control drive mechanism 33 direct drive, and all the other circuit breaker utmost points realize automatic divide-shut brake under link gear's 42 linkage effect. Through with the electric operation drive mechanism cross-under in the drive module between two adjacent circuit breaker utmost points, drive module direct drive circuit breaker utmost point, all the other circuit breaker utmost points are driven by link gear, and a plurality of circuit breaker utmost points share an electric operation drive mechanism, avoid setting up drive module whole in the inside of a circuit breaker utmost point, have saved the inner space of circuit breaker utmost point. Of course, as a variant, the electrically operated transmission 33 for driving the automatic opening and closing of the breaker poles can also be arranged in one breaker pole, which of course increases the thickness of this breaker pole.

An embodiment (not shown) of the assembly of the electrically operated transmission 33 is that the electrically operated transmission 33 is directly mounted in the escape space 53 of the two breaker poles. Preferably on the basis of keeping current circuit breaker utmost point thickness, through the length that increases the circuit breaker utmost point or change the inside overall arrangement mode of circuit breaker utmost point, reserve in a circuit breaker utmost point in two adjacent circuit breaker utmost points at least and dodge space 53, the cross-under is realized through dodging space 53 to electric operator drive mechanism 33, adopt the extension to occupy the inner space of adjacent circuit breaker utmost point in order to reduce the whole thickness of circuit breaker, do benefit to the holistic miniaturized design of circuit breaker, wherein, be equipped with simultaneously in two circuit breaker utmost points and dodge space 53 and make the thickness and the volume of circuit breaker reach minimum. Of course, the escape space 53 is not provided in the breaker pole to be connected, and the linkage mechanism 42 of the electric operation transmission mechanism 33 and the breaker pole is linked outside the breaker pole to realize the automatic opening and closing drive, but the whole volume of the breaker is large.

A further improvement of the present application is that the circuit breaker comprises a drive module 3 with the electric operating transmission 33, the drive module 3 comprising a partition 31 and the electric operating transmission 33 arranged on the partition 31, the circuit breaker poles all comprising a housing, the partition 31 being assembled between the housings of the two circuit breaker poles, so that the drive module 3 is assembled between the two circuit breaker poles, the two ends of the electric operating transmission 33 extending into the housings of the two circuit breaker poles respectively. All circuit breaker utmost point and drive module 3 all include the shell, and circuit breaker utmost point and drive module 3 can assemble alone in respective shell, assemble through respective shell of rethread after accomplishing the equipment, have the equipment independent, assemble convenient advantage, make the user can select to assemble according to actual conditions, and the suitability is stronger.

As shown in fig. 2 to 7, the driving module 3 of this embodiment includes a partition 31 for separating two breaker poles, a circuit board 32 and an electrically operated transmission mechanism 33 connected to the circuit board 32 are disposed on the partition 31, the circuit board 32 is located between two adjacent breaker poles, and two ends of the electrically operated transmission mechanism 33 respectively extend into the two adjacent breaker poles. Preferably, an avoidance space 53 is reserved on one side of the linkage mechanism 42 of each breaker pole, the avoidance spaces 53 of the two breaker poles are opposite, and two ends of the electric operation transmission mechanism 33 respectively extend into the two avoidance spaces 53. In this embodiment, the electrically operated transmission mechanism 33 is vertically connected in a penetrating manner along the thickness direction of the two breaker poles, one end of the electrically operated transmission mechanism 33 extends into the avoiding space 53 of one breaker pole to be matched with the linkage mechanism 42, and the other end of the electrically operated transmission mechanism 33 only extends and is assembled in the avoiding space 53 of the other breaker pole.

Preferably, at least one circuit breaker utmost point internal current sampling device, circuit board 32 is connected with the current sampling device communication of circuit breaker, is equipped with microcontroller on circuit board 32, microcontroller is used for receiving and handling the signal by current sampling device feedback, preferably all is equipped with current sampling device in every circuit breaker utmost point, current sampling device is current transformer 45, and current transformer 45 is connected with circuit board 32 and is used for feeding back the current signal of each circuit breaker utmost point.

The utility model provides an assembly embodiment does (not shown in the figure) of circuit breaker utmost point and drive module, the shell of circuit breaker utmost point and drive module 3's shell all include the base and cover closes upper cover 11 on the base, reserve in the shell of every circuit breaker utmost point to have and dodge space 53, the dodge space 53 of two adjacent circuit breaker utmost points is just right, be equipped with on the shell lateral wall of two circuit breaker utmost points and drive module 3's shell lateral wall and dodge hole 121, make drive module 3's electric operating transmission mechanism 33 extend to two adjacent circuit breaker utmost points through dodging hole 121 when assembling.

Further, referring to the embodiments shown in fig. 1 to 7, the upper cover of the driving module 3 and the upper cover 11 of one circuit breaker pole may be omitted, or the base of the driving module 3 and the base of another circuit breaker pole may be omitted, after the upper cover or the base of the driving module 3 is omitted, the housing of the driving module 3 only includes one partition plate 31, and only the avoiding hole 121 needs to be formed in the side wall of the housing of one circuit breaker pole, which not only reduces the thickness of the whole circuit breaker, but also facilitates assembly.

Referring to the preferred embodiment of fig. 1-12, this embodiment takes a two-pole circuit breaker as an example, wherein the first circuit breaker pole 1 is an active circuit breaker pole directly driven by the driving module 3 to perform automatic switching on and off, and the second circuit breaker pole 2 is a driven circuit breaker pole linked by the linkage mechanism 42 to perform switching on and off actions.

As shown in fig. 1-5, the circuit breaker includes a first circuit breaker pole 1, a second circuit breaker pole 2 and a driving module 3, which are arranged in parallel, the first circuit breaker pole 1, the second circuit breaker pole 2 and the driving module 3 are assembled together through respective housings, and the driving module 3 is located between the first circuit breaker pole 1 and the second circuit breaker pole 2. First circuit breaker utmost point 1 includes first shell, first shell includes that first base 12 and lid close upper cover 11 on first base 12, and second circuit breaker utmost point 2 includes second base 21, and drive module 3 includes baffle 31, and first base 12 lid closes on baffle 31 to be equipped with on first base 12 and dodge the hole 121 with baffle 31 intercommunication, baffle 31 lid closes on second base 21 be provided with the groove structure who extends to in the second base 21 on the baffle 31, make drive module 3's electrical control drive mechanism 33 extend to first circuit breaker utmost point 1 and second circuit breaker utmost point 2 dodge the space 53 in through dodging hole 121 and groove structure, realize the cross-under of electrical control drive mechanism 33.

As shown in fig. 6-8, two ends of the first housing and the second base 21 are respectively used as a wire inlet end and a wire outlet end, a wire inlet terminal 481 is installed at the wire inlet end and is provided with a wire inlet corresponding to the wire inlet terminal 481, a wire outlet terminal 482 is installed at the wire outlet end and is provided with a wire outlet 51 corresponding to the wire outlet terminal 482, in this embodiment, the wire inlet is a wire inlet socket 52, the wire inlet terminal 481 is a bus clamp installed in the wire inlet socket 52, one end of the bus clamp is used as a clamping end for being connected with an external wire in a plugging manner, and the other end of the bus clamp is used as a connecting end for achieving electrical connection. The other ends of the first housing and the second base 21 are provided with an outlet 51 and a button hole, an outlet terminal 482 and a button mechanism 41 are respectively assembled in the outlet 51 and the button hole, the button mechanism 41 is slidably assembled in the button hole, one end of the button mechanism is positioned outside the button hole, and the other end of the button mechanism extends into the first housing and the second base 21.

The second breaker pole 2 of the present embodiment has the same structure as the first breaker pole 1, that is, the same layout positions in the first base 12 and the second base 21, and the first breaker pole 1 will be described below. A linkage mechanism 42 and an operating mechanism 43 are arranged between the button mechanism 41 and the wire inlet terminal 481 in the first base 12, wherein the operating mechanism 43 is arranged in the middle of the first base 12, the linkage mechanism 42 is arranged between the operating mechanism 43 and the button mechanism 41, the button mechanism 41 is connected with the operating mechanism 43 through the linkage mechanism 42 and is used for manually operating the opening and closing of the breaker pole, an avoidance space 53 is reserved on one side of the linkage mechanism 42, the button mechanism 41 and the wire outlet terminal 482, namely, the space surrounded by the linkage mechanism 42, the button mechanism 41 and the wire outlet terminal 482 is an avoidance space 53, an avoidance hole 121 is arranged on the first base 12 opposite to the avoidance space 53, one end of the electric operating transmission mechanism 33 passes through the avoidance hole 121 to be matched with the linkage mechanism 42, so that the first breaker pole 1 is directly driven by the electric operating transmission mechanism 33 to perform automatic braking action, the avoidance space 53 is arranged in parallel with the button mechanism 41, by arranging the avoidance space 53 on one side of the button mechanism 41, the avoidance space 53 is kept away from the area of the core component of the breaker pole, and the interference of the movement of the electric operation transmission mechanism 33 on other components in the breaker pole is avoided.

A contact mechanism, an arc extinguish chamber 46, an overcurrent protection mechanism and a current transformer 45 are further arranged between the operating mechanism 43 and the wire inlet terminal 481, the contact mechanism comprises a moving contact and a fixed contact which are matched with each other, the moving contact is connected to the operating mechanism 43, the fixed contact is fixed in the first base 12 and is opposite to the moving contact, the overcurrent protection mechanism comprises a short-circuit protection mechanism 44 and an overload protection mechanism 47, the arc extinguish chamber 46 and the short-circuit protection mechanism 44 are arranged between the operating mechanism 43 and the wire inlet terminal 481 in parallel, and an arc striking plate extending into the arc extinguish chamber 46 is arranged between the arc extinguish chamber 46 and the contact mechanism; one end of the short-circuit protection mechanism 44 is opposite to the operating mechanism 43, and when a short-circuit fault occurs, one end of the short-circuit protection mechanism 44 triggers the operating mechanism 43 to trip. The current transformer 45 is arranged between the inlet terminal 481 and the other end of the short-circuit protection mechanism 44, the conductive piece 49 between the short-circuit protection mechanism 44 and the inlet terminal 481 penetrates through the current transformer 45, the current transformer 45 is in communication connection with the circuit board 32 in the driving module 3 and is used for feeding back a current signal to the driving module 3, and the current transformer for collecting the current signal is arranged between the short-circuit protection mechanism and the inlet terminal, so that the current transformer is prevented from being influenced by other components, and the collection precision is improved; overload protection mechanism 47 sets up with operating device 43 side by side, button mechanism 41, operating device 42, short-circuit protection mechanism 44, current transformer 45 set up along one side of circuit breaker utmost point, set up along one side in first base 12 promptly, overload protection mechanism 47 sets up the opposite side in first base 12, with the position that operating device 43 corresponds, the inner space utilization who has improved the circuit breaker utmost point, do benefit to the miniaturized design of circuit breaker, and current transformer sets up between short-circuit protection mechanism and incoming line terminal, keep away from other parts.

It should be noted that, the short-circuit protection mechanism 44 and the overload protection mechanism 47 may be replaced (not shown), that is, the overload protection mechanism 47 and the incoming line terminal 481 are disposed on the same side, the current transformer 45 is disposed between the overload protection mechanism 47 and the incoming line terminal 481, the arc extinguish chamber 46 and the overload protection mechanism 47 are disposed between the incoming line terminal 481 and the operating mechanism 43 in parallel, and the short-circuit protection mechanism 47 and the operating mechanism 43 are disposed in parallel; or both overload protection mechanism 47 and short-circuit protection mechanism 44 may be disposed on the same side (not shown), preferably on the same side as line terminal 481, in which case current transformer 45 may be disposed between short-circuit protection mechanism 47 and line terminal 481, or between overload protection mechanism 47 and line terminal 481.

The button mechanism 41 comprises a button member and a connecting member, one end of the button member extends out of the button hole, the other end of the button member is connected with the linkage mechanism 42 through the connecting member, and one end of the button member extending out of the button hole of each circuit breaker pole is connected together through the handle linkage member, so that the button mechanisms 41 of all the circuit breaker poles are linked to keep synchronous action.

As shown in fig. 6, the linkage mechanism 42 includes a link member 423, the link member 423 is rotatably mounted in the circuit breaker pole, the link member 423 is connected to the button mechanism 41 through a first connecting rod 421, and is connected to the operating mechanism 43 through a second connecting rod 422, and gear teeth engaged with the gear set 332 of the driving module 3 are provided on the link member 423, preferably, the gear teeth of the link member 423 are located at a side close to the avoiding hole 121. The linkage 423 is linked with the linkages 423 in other breaker poles through linkage shafts.

The operating mechanism 43 includes a contact support, a trip and a latch, the contact support is rotatably mounted on the first base 12, the trip and the latch are rotatably mounted on the contact support, the trip forms a snap connection with one end of the latch, the trip is connected with the second link 422, and one end of the contact support is connected with the moving contact. The short-circuit protection mechanism 44 comprises an electromagnetic release, the moving end of the electromagnetic release is opposite to one end of the lock catch, and when a short-circuit fault occurs, the moving end of the electromagnetic release is driven by the increased electromagnetic force to trigger the lock catch, so that the operating mechanism 43 is released and powered off; the other end of the lock catch is connected with a trip rod 431, the overload protection mechanism 47 comprises a bimetallic strip, one end of the bimetallic strip is fixed in a pole of the circuit breaker, the movable end of the bimetallic strip is matched with the trip rod 431, and when an overload fault occurs, the bimetallic strip is heated and bent to trigger the trip rod 431 to enable the operating mechanism 43 to trip. Preferably, the latches of the operating mechanisms 43 of the at least two breaker poles are linked through the latch linkage member, and when one breaker pole breaks down and triggers the operating mechanism 43 to trip, the latch linkage member drives the operating mechanisms 43 of the other breaker poles to trip.

In the present embodiment, the second breaker pole 2 has the same structure as the first breaker pole 1, that is, the same layout positions in the first base 12 and the second base 21, and includes components such as an inlet terminal 481, an outlet terminal 482, a button mechanism 41, a link mechanism 42, an operating mechanism 43, a contact mechanism, a short-circuit protection mechanism 44, an arc extinguishing chamber 46, an overload protection mechanism 47, and a current transformer 45. The linkage 423 of the first circuit breaker pole 1 is connected with the linkage 423 of the second circuit breaker pole 2 through the linkage shaft, the difference between the second circuit breaker pole 2 and the first circuit breaker pole 1 lies in that the shell of the second circuit breaker pole 2 only comprises the second base 21, the difference between the second base 21 and the first base 12 lies in that the avoiding hole 121 is not arranged on the second base 21, but the avoiding space 53 in the first circuit breaker pole 1 and the second circuit breaker pole 2 is kept right.

As shown in fig. 2-4 and 9-12, the driving module 3 includes a partition plate 31, and an electric operating transmission mechanism 33 and a circuit board 32 assembled on the partition plate 31, where the partition plate 31 has the same shape as the housing of the first circuit breaker pole 1 and the second circuit breaker pole 2, that is, the partition plate 31 has the same shape as the first base 12 and the second base 21, and an open slot corresponding to the incoming line jack 52 is provided at one end of the partition plate 31, which is beneficial to ensuring the plugging of the circuit breaker. As shown in fig. 9, a first mounting groove 311 for mounting the circuit board 32 and a second mounting groove 312 for mounting the electric operation transmission mechanism 33 are opened on the same side of the partition plate 31, the first mounting groove 311 is located in the middle of the partition plate 31 for mounting the circuit board 32, the second mounting groove 312 corresponds to the avoiding space 53 of the first breaker pole 1 and the second breaker pole 2, the first mounting groove 311 can be communicated with the second mounting groove 312 or the first mounting groove 311 and the second mounting groove 312 are kept relatively independent, the degree of recess of the second mounting groove 312 is greater than that of the first mounting groove 311, the groove bottom of the second mounting groove 312 protrudes to the other side of the partition plate 31, that is, the groove bottom of the second mounting groove 312 extends and protrudes to the avoiding space 53 in the second breaker pole 2, the opening of the second mounting groove 312 is opposite to the avoiding hole 121 of the first breaker pole 1, in this embodiment, the avoidance spaces 53 in the first breaker pole 1 and the second breaker pole 2 are kept facing each other, and the electrically operated transmission mechanism 33 fitted in the second mounting groove 312 is vertically inserted in the direction of the thickness of the first breaker pole 1 and the second breaker pole 2. The circuit board 32 is arranged between two adjacent circuit breaker poles and is positioned between the first base 12 and the partition plate 31, the current transformer 45 is connected with the circuit board 32 to feed back current signals, the shielding effect is good, and the wiring is convenient.

As shown in fig. 2 to 6, a signal port 321 is provided at an upper side and/or a lower side of one end of the circuit board 32, and the housing of the first circuit breaker pole 1 and/or the housing of the second circuit breaker pole 2 is provided with a communication jack to be fitted with the signal port 321. In the present embodiment, the wiring board 32 is laid along the bottom of the first mounting groove 311, and the wiring board 32 is disposed between two breaker poles and corresponds to a region from the button mechanism 41 of the breaker pole to the outlet terminal 482. The incoming line ends of the two breaker poles are provided with communication sockets, and both sides of one end of the circuit board 32 are provided with signal ports 321 which are respectively arranged in the communication sockets of the two breaker poles; correspond all to be provided with communication socket on baffle 31, first shell and the second base 21, communication socket is located the inlet wire end, can realize simultaneously through once plug and draw being connected or breaking off with outside wire, communication line, does benefit to the circuit breaker wiring.

As shown in fig. 6, 7 and 10-12, the electrically operated transmission mechanism 33 includes a motor 331 and a gear set 332 in driving connection, the output of the motor 331 is in meshing connection with the gear set 332, the gear set 332 extends into one breaker pole and is connected with the linkage 42 in that breaker pole, and the other end of the motor 331 extends into the other breaker pole. In this embodiment, the output end of the motor 331 is engaged with the gear set 332 as the driving end of the electric operation transmission mechanism 33, the driving end passes through the avoiding hole 121 of the first base 12 and extends to the avoiding space 53 in the first breaker pole 1, the driving end is matched with the linkage mechanism 42 in the first breaker pole 1, so as to realize the driving connection of the operation mechanism 43 in the first breaker pole 1, and the other end of the motor 331 is assembled in the second installation groove 312 as the fixed end of the electric operation transmission mechanism 33 and extends to the avoiding space 53 in the second breaker pole 2 through the second installation groove 312. The avoidance space 53 of the first breaker pole 1 and the second breaker pole 2 is right, so that the motor 331 can be vertically assembled in the second mounting groove 312, namely, the two ends of the motor 331 are perpendicular to the first breaker pole 1 and the second breaker pole 2, so that the motor 331 is mainly located in the second breaker pole 2, and the gear set 332 is mainly located in the first breaker pole 1. The electric operating transmission mechanism 33 is arranged in parallel with the button mechanisms 41 of the two breaker poles and is positioned on one side of the button mechanisms 41 of the two breaker poles, after the breaker is assembled, the whole thickness of the breaker is thinner or basically the same compared with the thickness of the existing two-pole breaker, and it needs to be described that when part of gears of the gear set 332 are also assembled in the second mounting groove 312, the second mounting groove 312 is matched with the gear supporting part and provides space for the rotation of the gears.

In this embodiment, the gear set 332 and the motor 331 are respectively located at two sides of the circuit board 32, the output end of the motor 331 penetrates through the circuit board 32 to be meshed with the gear set 332, as shown in fig. 11 and 12, the gear set 332 includes five gears which are sequentially meshed, that is, a first gear, a second gear, a third gear, a fourth gear and a fifth gear, the first gear is preferably meshed with the output end of the motor 331 through a worm, the fifth gear penetrates through the avoiding hole 121 of the first base 12 to be meshed with the gear teeth of the linkage member 423 in the first breaker pole 1, the avoiding space 53 of the first breaker pole 1 provides a rotating space for the fifth gear, of course, except the fifth gear, the rest gears may fully or partially extend into the first breaker pole 1, in addition, the number of the gears of the gear set 332 may be increased or decreased according to actual needs, the size of the avoiding space 53 may be optimized according to the number of the gear set 332 and the assembly position, thereby further improving the overall size of the circuit breaker.

The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.

Claims (10)

1. The utility model provides a plug-in circuit breaker, includes two at least circuit breaker poles that set up side by side, is equipped with operating device (43) that link gear (42) and be connected with link gear (42) in every circuit breaker pole, its characterized in that: the automatic switch-on and switch-off device is characterized by further comprising electric operation transmission mechanisms (33) with two ends extending into the two circuit breaker poles respectively, wherein the linkage mechanisms (42) of the two circuit breaker poles are linked through a linkage shaft, the electric operation transmission mechanisms (33) are matched with the linkage mechanism (42) of one circuit breaker pole to drive the circuit breaker poles to be automatically switched on and switched off, and the linkage mechanism (42) of the circuit breaker pole drives the other circuit breaker poles to be automatically switched on and off through the linkage shaft.

2. A plug-in circuit breaker as claimed in claim 1, characterized in that: an avoidance space (53) is reserved on one side of the linkage mechanism (42) of the two breaker poles, the avoidance spaces (53) of the two breaker poles are kept right opposite, and two ends of the electric operation transmission mechanism (33) respectively extend into the two avoidance spaces (53).

3. A plug-in circuit breaker as claimed in claim 1, characterized in that: the two ends of the electric operation transmission mechanism (33) vertically extend into the two breaker poles along the thickness direction of the two breaker poles.

4. A plug-in circuit breaker as claimed in claim 1, characterized in that: the electric operation transmission mechanism (33) comprises a motor (331) and a gear set (332), the output end of the motor (331) is meshed with the gear set (332), the gear set (332) extends into one breaker pole and is connected with a linkage mechanism (42) in the breaker pole, and the other end of the motor (331) extends into the other breaker pole.

5. A plug-in circuit breaker as claimed in claim 1, characterized in that: the circuit breaker further comprises a partition plate (31) and a circuit board (32), wherein the partition plate (31) is arranged between the two breaker poles, and the circuit board (32) is connected with the electric operating transmission mechanism (33) and assembled on the partition plate (31).

6. A plug-in circuit breaker as claimed in claim 5, characterized in that: the same side of the partition board (31) is provided with a first mounting groove (311) for mounting the circuit board (32) and a second mounting groove (312) for mounting the electric operating transmission mechanism (33), the sinking degree of the second mounting groove (312) is greater than that of the first mounting groove (311), and the bottom of the second mounting groove (312) protrudes to the other side of the partition board (31).

7. A plug-in circuit breaker as claimed in claim 6, characterized in that: the circuit board (32) is laid along the groove bottom of the first mounting groove (311), the electric operation transmission mechanism (33) comprises a motor (331) and a gear set (332), the motor (331) is assembled in the second mounting groove (312) and extends into one circuit breaker pole through the second mounting groove (312), the output end of the motor (331) is in driving connection with the gear set (332), and the gear set (332) extends into the other circuit breaker pole.

8. A plug-in circuit breaker as claimed in claim 1, characterized in that: one end of each breaker pole is provided with an incoming line socket (52) as an incoming line end, an incoming line terminal (481) is assembled in the incoming line socket (52), the other end of each breaker pole is provided with an outlet (51) and a button hole as an outlet, the outlet (51) and the button hole are respectively provided with an outlet terminal (482) and a button mechanism (41), a linkage mechanism (42) is arranged between an operating mechanism (43) and the button mechanism (41), and the button mechanism (41) realizes manual operation of the operating mechanism (43) through the linkage mechanism (42).

9. A plug-in circuit breaker as claimed in claim 8, characterized in that: the linkage mechanism (42) comprises a linkage piece (423), the linkage piece (423) is rotatably assembled in the circuit breaker poles, the linkage piece (423) is connected with the button mechanism (41) through a first connecting rod (421), and is connected with the operating mechanism (43) through a second connecting rod (422), gear teeth are arranged on the linkage piece (423), and the linkage piece (423) is linked with the linkage piece (423) in other circuit breaker poles through a linkage shaft.

10. A plug-in circuit breaker as claimed in claim 9, characterized in that: a contact mechanism, an arc extinguish chamber (46), a short-circuit protection mechanism (44) and an overload protection mechanism (47) are further arranged between the operating mechanism (43) and the wire inlet terminal (481) of each circuit breaker pole, a moving contact of the contact mechanism is connected with the operating mechanism (43), and a fixed contact of the contact mechanism is fixedly arranged and is opposite to the moving contact;

the operating mechanism (43) comprises a contact support, a jump buckle and a lock catch, the contact support is rotatably assembled on the first base (12), the jump buckle and the lock catch are rotatably assembled on the contact support, the jump buckle is connected with the lock catch hasp, and the jump buckle is connected with the second connecting rod (422);

one ends of the button mechanisms (41) of the at least two breaker poles, which extend out of the button holes, are linked through a handle linkage piece, and the latches of the operating mechanisms (43) of the at least two breaker poles are linked through a latch linkage piece.

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