CN112366123B - A double-pole circuit breaker and a distribution box having the double-pole circuit breaker - Google Patents
A double-pole circuit breaker and a distribution box having the double-pole circuit breaker Download PDFInfo
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- CN112366123B CN112366123B CN202011372872.2A CN202011372872A CN112366123B CN 112366123 B CN112366123 B CN 112366123B CN 202011372872 A CN202011372872 A CN 202011372872A CN 112366123 B CN112366123 B CN 112366123B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/08—Terminals; Connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
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Abstract
The invention relates to a bipolar circuit breaker and a distribution box with the bipolar circuit breaker, wherein the bipolar circuit breaker comprises an outer shell, a first pole conductive line and a second pole conductive line, through first utmost point conductive line and second utmost point conductive line transversely buckle and intercrossing in the shell body, the final parallel outgoing line for circuit breaker whole is small, the wiring is convenient, the wiring is succinct, and interphase insulativity is good, has complete circuit breaking, arc extinguishing function.
Description
Technical Field
The invention relates to the field of circuit breakers, in particular to an improvement of a wiring structure of a conductive circuit of a bipolar circuit breaker.
Background
The existing circuit breaker used in the incoming line end of the distribution box is usually a diode circuit breaker, one pole is connected to an A-phase power line, the other pole is connected to a B-phase power line, the circuit breaker generally adopts an upper incoming line-lower outgoing line or lower incoming line-upper outgoing line wiring mode, and a contact system is vertically arranged between the incoming line end and the outgoing line end, so that the circuit breaker is large in size, and the problem that the circuit breaker cannot be installed is often caused due to the fact that the internal space of the distribution box is small.
Disclosure of Invention
Accordingly, in view of the above problems, the present invention proposes a bipolar circuit breaker with improved structure.
The invention is realized by adopting the following technical scheme:
The invention provides a bipolar circuit breaker, which comprises an outer shell, a first pole conductive line and a second pole conductive line, wherein the first pole conductive line is arranged in the outer shell in an extending way and is provided with a first wire inlet end and a first wire outlet end, the second pole conductive line is arranged in the outer shell in an extending way and is provided with a second wire inlet end and a second wire outlet end, the first pole conductive line and the second pole conductive line are respectively provided with a first contact system and a second contact system, the first pole conductive line and the second pole conductive line are mutually intersected, the first wire outlet end and the second wire outlet end are respectively exposed out of a first side edge of the outer shell at intervals side by side through a first wire outlet terminal seat and a second wire outlet terminal seat, the extending direction of the first wire outlet terminal seat and the extending direction of the second wire outlet terminal seat are defined to be longitudinal, and the first contact system and the second contact system are arranged in the outer shell in a parallel and transverse mode and are approximately located in a span range between the first wire outlet end and the second wire outlet end.
In one embodiment, the first contact system and the second contact system have a first breaking motion track and a second breaking motion track, and the extending directions of the first wire outlet terminal seat and the second wire outlet terminal seat are perpendicular to the motion planes where the first breaking motion track and the second breaking motion track are located.
In one embodiment, the first wire inlet end and the second wire inlet end are respectively exposed out of the second side edge of the outer shell at intervals side by side through a first wire inlet terminal seat and a second wire inlet terminal seat, and the second side edge is located on the opposite side of the first side edge.
In one embodiment, the connection line of the first wire inlet terminal block and the second wire outlet terminal block is parallel to the connection line of the second wire inlet terminal block and the first wire outlet terminal block.
Wherein, based on installation considerations, and also in order to match the shape of the approximately rectangular body of the outer shell, the inner space of the outer shell is utilized most fully, in one embodiment, the first electrode conductive line is arranged in an inverted Z-shaped bent extension from the first wire inlet end to the first wire outlet end approximately in a downward-rightward-downward direction, and the second electrode conductive line is arranged in an approximately Z-shaped bent extension from the second wire inlet end to the second wire outlet end approximately in a downward-leftward-downward direction, with the first wire outlet terminal seat being positioned at the lower side of the longitudinal direction of the outer shell and the first wire outlet terminal seat being positioned at the right side of the second wire outlet terminal seat in a transverse direction.
Wherein, based on manufacturing and cost considerations, in one embodiment, the first incoming wire end includes a first incoming wire terminal block and a first conductive copper bar, the first polar conductive line further includes a first hard connection and a first soft connection, the first incoming wire terminal block, the first conductive copper bar, the first hard connection, the first soft connection, the first contact system and the first outgoing wire end are sequentially connected, the first incoming wire terminal block, the first conductive copper bar and the first outgoing wire end are vertically arranged, the first contact system and the first soft connection are horizontally arranged left and right, the first hard connection is a bent sheet body, and the first incoming wire end to the first outgoing wire end is approximately arranged in a reverse Z-shaped bent extending arrangement from the first incoming wire end to the first outgoing wire end in a downward-rightward-downward manner through a bent structure thereof;
The second wire inlet end comprises a second wire inlet terminal seat and a second conductive copper bar, the second conductive circuit further comprises a second hard connection and a second soft connection, the second wire inlet terminal seat, the second conductive copper bar, a second contact system, the second soft connection, the second hard connection and a second wire outlet end are sequentially connected, the second wire inlet terminal seat, the second conductive copper bar and the second wire outlet end are longitudinally arranged up and down, the second contact system and the second soft connection are transversely arranged left and right, the second hard connection is a bent sheet body, the second soft connection transversely arranged left and right and the second wire outlet end longitudinally arranged up and down are connected through a bent structure of the second hard connection, and accordingly the second conductive circuit is arranged in a Z-shaped bent extending mode from the second wire inlet end to the second wire outlet end in a mode of 'downwards-leftwards-downwards'.
Wherein, in order to ensure that the circuit breaker has complete breaking and arc extinguishing functions, in one embodiment, the bipolar circuit breaker further comprises a first overcurrent release and a second overcurrent release which are respectively arranged on the first hard connection and the second hard connection.
Wherein, in order to ensure that the circuit breaker has complete breaking and arc extinguishing functions, in one embodiment, the bipolar circuit breaker further comprises a first arc extinguishing chamber and a second arc extinguishing chamber which respectively cover the first breaking movement track and the second breaking movement track.
In one embodiment, the first outgoing line terminal seat is located at a right side of the second outgoing line terminal seat in a transverse direction, and the first incoming line end and the second incoming line end are respectively arranged at a left side edge and a right side edge of the outer shell.
Wherein, based on installation considerations, in one embodiment, with the first and second outlet terminal blocks on the longitudinal underside of the outer housing, the first pole conductive trace is arranged in a generally "right-down" inverted L-bend extension from the first inlet end to the first outlet end, and the second pole conductive trace is arranged in a generally "left-down" L-bend extension from the second inlet end to the second outlet end.
Wherein, based on manufacturing and cost considerations, in one embodiment, the first pole conductive trace comprises a first wire inlet end, a first contact system, a first flexible connection, a first hard connection and a first wire outlet end which are connected in sequence, wherein the first wire inlet end, the first contact system and the first flexible connection are arranged horizontally left and right, the first wire outlet end is arranged vertically up and down, the first hard connection is a bent sheet body, the first flexible connection and the first wire outlet end are connected horizontally through a bending structure thereof, so that the first pole conductive trace is arranged in an inverted L-shaped bending extending mode from the first wire inlet end to the first wire outlet end approximately in a right-downward mode;
The second electrode conductive circuit comprises a second wire inlet end, a second hard connection, a second soft connection, a second contact system and a second wire outlet end which are sequentially connected, wherein the second wire inlet end, the second hard connection, the second soft connection and the second contact system are transversely arranged left and right, the second wire outlet end is approximately longitudinally arranged, and accordingly the second electrode conductive circuit is approximately arranged in a L-shaped bending extending mode of leftwards and downwards from the second wire inlet end to the second wire outlet end.
The bipolar circuit breaker further comprises an operating mechanism which is transversely arranged on the first contact system or the second contact system and used for controlling the opening and closing of the first contact system or the second contact system, and the first contact system and the second contact system are synchronously connected in a linkage mode.
Based on the bipolar circuit breaker, the invention further provides a distribution box, and the incoming line end of the distribution box is provided with the bipolar circuit breaker.
The invention has the following beneficial effects: the bipolar circuit breaker provided by the invention has the advantages that through transverse bending, mutual crossing and parallel outgoing lines between the first pole conductive circuit and the second pole conductive circuit, the whole size of the circuit breaker is small, the wiring is convenient, the wiring is concise, the interphase insulation is good, and the circuit breaker has complete circuit breaking and arc extinguishing functions.
Drawings
Fig. 1 is a schematic perspective view of a bipolar circuit breaker in embodiment 1;
Fig. 2 is a schematic perspective view (with the upper cover removed) of the bipolar circuit breaker in example 1;
Fig. 3 is a structural exploded view of the bipolar circuit breaker in embodiment 1;
FIG. 4 is a schematic diagram of a first pole conductive trace and a second pole conductive trace in example 1;
FIG. 5 is an exploded view of the first and second pole conductive traces of example 1;
Fig. 6 is a schematic diagram of the current flow (including a phase a and B phase) of the bipolar circuit breaker of example 1;
Fig. 7 is a schematic view of the working environment of the bipolar circuit breaker of embodiment 1 applied in a distribution box;
fig. 8 is a schematic perspective view of a bipolar circuit breaker in example 2;
fig. 9 is a schematic perspective view (with the upper cover removed) of the bipolar breaker in example 2;
fig. 10 is a structural exploded view of the bipolar circuit breaker in embodiment 2;
FIG. 11 is a schematic diagram of a first pole conductive trace and a second pole conductive trace in example 2;
FIG. 12 is an exploded view of the first and second pole conductive traces of example 2;
Fig. 13 is a schematic diagram of the current flow (including a-phase and B-phase electricity) of the bipolar breaker in example 2;
Fig. 14 is a schematic view of the working environment of the bipolar circuit breaker of example 2 applied in a distribution box.
Detailed Description
For further illustration of the various embodiments, the invention is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible embodiments and advantages of the present invention. The components in the figures are not drawn to scale and like reference numerals are generally used to designate like components.
The invention will now be further described with reference to the drawings and detailed description.
Example 1:
As a preferred embodiment of the present invention, there is provided a bipolar circuit breaker applied to an inlet terminal of a distribution box, the two poles of which are connected to a-phase electricity and B-phase electricity, respectively, as shown in fig. 1 to 3, the circuit breaker including an outer case 300, the outer case 300 including a base 31, a side wall 32 and an upper cover 33 which can be coupled to each other as one body, and a handle of a circuit breaker operating mechanism 9 being exposed to the outer case 300 to perform manual turn-off and turn-on. Referring to fig. 4-6 in combination, the circuit breaker further comprises a first pole conductive trace and a second pole conductive trace, the first pole conductive trace (receiving a phase of electricity) comprising a first incoming line end (the first incoming line end comprising a first incoming line terminal block 11 and a first conductive copper bar 12 fixedly electrically connected together), a first hard connection 13, a first soft connection 14, a first contact system 15 and a first outgoing line end 16, which are sequentially connected. The second pole conductive track (B phase connection) comprises a second incoming line end (the second incoming line end comprises a second incoming line terminal block 21 and a second conductive copper bar 22 fixedly and electrically connected together), a second contact system 23, a second flexible connection 24, a second hard connection 25 and a second outgoing line end 26, which are connected in sequence. Wherein: the first wire outlet terminal 16 includes a first wire outlet terminal block 162 extending in a sheet shape, and a first connection portion 161 for electrically connecting with the first contact system 15, and the second wire outlet terminal 26 includes a second wire outlet terminal block 262 extending in a sheet shape, and a second connection portion 261 for electrically connecting with the second hard connection 25, as shown in fig. 6, all of the first wire inlet terminal block 11, the second wire inlet terminal block 21, the first wire outlet terminal block 162, and the second wire outlet terminal block 262 are exposed out of the outer case 300 to facilitate wire connection. The first connecting portion 161 is provided with a first fixed contact 152 to be in contact fit with the first moving contact 151, so as to form the first contact system 15; the second conductive copper bar 22 is provided with a second fixed contact 232 to be in contact fit with the second movable contact 231 to form the second contact system 23.
For ease of description, define in fig. 6:
The first and second outlet terminal holders 162 and 262 are located at the lower side of the outer case 300 (sidewall 32) in the longitudinal direction, and then the outer case 300 (sidewall 32) is located at the upper side of the first and second outlet terminal holders 162 and 262 in the longitudinal direction; the lower side of the outer shell 300 is a first side, and the upper side of the outer shell 300 is a second side;
The first outlet terminal block 162 is located on the right side of the second outlet terminal block 262 in the lateral direction, and the second outlet terminal block 262 is located on the left side of the first outlet terminal block 162 in the lateral direction.
In the first pole conductive line, a first incoming line terminal seat 11, a first conductive copper bar 12 and a first outgoing line end 16 are longitudinally arranged up and down, a first contact system 15 and a first soft connection 14 are transversely arranged left and right, a first hard connection 13 is a bent sheet body, the first conductive copper bar 12 longitudinally arranged up and down and the first soft connection 14 transversely arranged left and right are connected through a bending structure of the first hard connection 13, and the first pole conductive line is in an inverted Z shape from incoming line to outgoing line from downward to rightward to downward; in the second conductive circuit, the second incoming line terminal seat 21, the second conductive copper bar 22 and the second outgoing line end 26 are longitudinally arranged up and down, the second contact system 23 and the second soft connection 24 are transversely arranged left and right, the second hard connection 25 is a bent sheet body, the second soft connection 24 transversely arranged left and right and the second outgoing line end 26 longitudinally arranged up and down are connected through a bending structure of the second hard connection, and the whole second conductive circuit is Z-shaped from incoming line to outgoing line.
At the same time, the first pole conductive line and the second pole conductive line are crossed with each other, in this embodiment, through bending and abdication between the first hard connection 13 and the second hard connection 25, so that the first pole conductive line and the second pole conductive line are crossed, the first pole conductive line and the second pole conductive line are firstly bent transversely and then crossed with each other, and finally respectively go out through the first wire outlet terminal 16 and the second wire outlet terminal 26, so that the first contact system 15 and the second contact system 23 are transversely arranged in parallel in the outer shell 300 and are approximately in the span range between the first wire outlet terminal 16 and the second wire outlet terminal 26, thereby utilizing the width space between the first wire inlet terminal seat 11 and the second wire inlet terminal seat 21 to transversely arrange the contact system and the operating mechanism 9, and reducing the whole volume of the circuit breaker. It should be noted that, the "span range between the first wire outlet terminal 16 and the second wire outlet terminal 26" referred to in the description should be understood as a span between connection points (i.e., the first connection portion 161 and the second connection portion 261) where the first wire outlet terminal 16 and the second wire outlet terminal 26 are connected to the first contact system 15 and the second contact system 23, respectively, and the first wire outlet terminal 16 and the second wire outlet terminal 26 may be bent or extended or the like so that the first wire outlet terminal seat 162 and the second wire outlet terminal seat 262 are exposed to the outer housing 300 at a suitable interval or length or the like, thereby adapting to the working environment of the electrical box.
In this embodiment, the first electrode conductive line and the second electrode conductive line are respectively in inverted zigzag and zigzag extending layout, which can be installed conveniently in the straight trend, and can match the shape of the substantially rectangular body of the outer housing 300, so as to fully utilize the internal space of the outer housing 300. In addition, in this embodiment, the first hard connection 13, the first soft connection 14, the second soft connection 24 and the second hard connection 25 are used as conductive connection structures to form the inverted Z-shaped and Z-shaped first electrode conductive line and the second electrode conductive line in a matching manner, and in other embodiments, the specific form of the conductive connection structures may be not restricted, as long as the wiring layout between the middle contact system and the wire inlet and outlet terminals can be satisfied.
The first moving contact 151 has a first breaking movement trace relative to the first fixed contact 152, the second moving contact 231 has a second breaking movement trace relative to the second fixed contact 232 to switch off and switch on the first pole conductive line and the second pole conductive line, and the operating mechanism 9 is transversely mounted on the first contact system 15 or the second contact system 23 and is used for operating the first moving contact 151 or the second moving contact 231 to move, and the first moving contact 151 and the second moving contact 231 are synchronously connected in a linkage mode. The extending direction of the first and second outlet terminal holders 162 and 262 is perpendicular to the movement plane in which the first and second breaking movement trajectories are located, so that the operating mechanism 9 can be laterally swung to facilitate operation.
In this embodiment, the first wire-incoming terminal seat 11 and the second wire-incoming terminal seat 21 are disposed on the upper side (the second side) of the outer housing 300, and the first wire-outgoing terminal seat 162 and the second wire-outgoing terminal seat 262 are disposed on the lower side (the first side) of the outer housing 300, i.e. the wire-incoming end of the circuit breaker is at the upper and lower wire-outgoing ends, so that the arrangement mode of single-side wire incoming and single-side wire outgoing makes the wiring of the external wiring of the circuit breaker more concise, and more preferably, the wiring of the first wire-incoming terminal seat 11 and the second wire-outgoing terminal seat 262 is approximately parallel to the wiring of the second wire-incoming terminal seat 21 and the first wire-outgoing terminal seat 162, thereby facilitating the wiring.
The circuit breaker further comprises an arc extinguishing chamber 7 and an overcurrent release 8 for respectively performing arc extinguishing and short-circuit protection, as shown in fig. 2-3, the two arc extinguishing chambers 7 respectively cover a first breaking movement track and a second breaking movement track, arc extinguishing treatment is performed on an arc which is possibly generated, the exhaust direction of the arc extinguishing chambers 7 is directed to the right side of the outer shell 300, the two overcurrent releases 8 are respectively installed on the first hard connection 13 and the second hard connection 25, and the operation mechanism 9 is matched for performing quick tripping and breaking through thermal deformation or magnetic field change generated by an overload circuit and short-circuit current. Since the arc extinguishing chambers 7 are arranged transversely and the wire inlet and outlet ends are arranged longitudinally, even when a short circuit occurs, the discharge direction of the arc in the arc extinguishing chambers 7 is transverse, and the wire inlet and outlet ends are not ablated.
According to the embodiment, through the layout mode of transverse bending and cross arrangement of the first pole conductive lines and the second pole conductive lines, the width space between the first incoming line terminal seat 11 and the second incoming line terminal seat 21 is fully utilized to arrange the contact system and the operating mechanism 9, the size of the circuit breaker is effectively reduced, the wiring of the incoming line terminal and the outgoing line terminal of the circuit breaker is very convenient and concise, fig. 7 shows a schematic diagram of the bipolar circuit breaker applied to the distribution box, and the outgoing line terminal can be conveniently connected with other small-sized circuit breakers in the distribution box due to the fact that the bipolar circuit breakers are respectively crossed and overlapped in the middle of the circuit breaker from the upper end and then are parallel to the lower end of the circuit breaker. Meanwhile, on the basis of the volume reduction of the bipolar circuit breaker, enough space is reserved for placing the arc extinguish chamber 7 and the overcurrent release 8, so that the circuit breaker is ensured to have complete circuit breaking and arc extinguishing functions, and the safety performance of the circuit is ensured.
Example 2:
This embodiment provides another bipolar circuit breaker, also for use in a distribution box, which is substantially similar in construction to the bipolar circuit breaker of embodiment 1, but differs in the arrangement of the incoming terminals. Specifically, referring to fig. 8-13, the bipolar circuit breaker includes an outer housing 300 ', and a first conductive trace and a second conductive trace mounted in the outer housing 300', wherein the first conductive trace includes a first wire inlet end (the first wire inlet end includes a first wire inlet terminal block 11 'and a first conductive copper bar 12'), a first contact system 15 ', a first flexible connection 14', a first hard connection 13 ', and a first wire outlet end 16' (the first wire outlet end 16 'includes a first wire outlet terminal block 161' extending longitudinally in a sheet shape), which are sequentially connected, wherein the first wire inlet end, the first contact system 15 ', the first flexible connection 14' are laterally arranged in a left-right direction, the first wire outlet end 16 'is longitudinally arranged up-down, the first hard connection 13' is a bent sheet body, and the first flexible connection 14 'and the first wire outlet end 16' extending longitudinally are joined by a bent structure thereof. The second conductive trace includes a second incoming line end (the second incoming line end includes a second incoming line terminal block 21 ' and a second conductive copper bar 22 '), a second hard connection 25 ', a second soft connection 24 ', a second contact system 23 ', and a second outgoing line end 26 ' (including a second outgoing line terminal block 261 ' extending longitudinally in a sheet shape), which are sequentially connected, wherein the second incoming line end, the second hard connection 25 ', the second soft connection 24 ', and the second contact system 23 ' are arranged laterally left and right, and the second outgoing line end 26 ' is arranged substantially longitudinally. Similar to embodiment 1, the first and second pole conductive traces are first bent laterally and then interdigitated, and finally are routed through the first and second outlet terminals 16 ' and 26 ', respectively, such that the first and second contact systems 15 ' and 23 ' are disposed laterally in parallel within the outer housing 300 ' and generally within the span between the first and second outlet terminals 16 ' and 26 ', thereby reducing the overall volume of the circuit breaker by utilizing the width space between the first and second inlet terminal blocks 11 ' and 21 '. Meanwhile, the extending direction of the first and second outlet terminal holders 162 ' and 262 ' is perpendicular to the moving plane in which the breaking movement tracks of the first and second contact systems 15 ' and 23 ' are located, so that the operating mechanism 9 ' can be laterally swung to facilitate operation.
The main difference between this embodiment and embodiment 1 is that: the first and second wire inlet ends are disposed on the left and right sides of the outer housing 300 ' in this embodiment such that, overall, the first conductive trace is in a generally "right-down" inverted L-shaped extension arrangement from the first wire inlet end to the first wire outlet end 16 ', and the second conductive trace is in a "left-down" L-shaped extension arrangement from the second wire inlet end to the second wire outlet end 26 '. The inverted L-shaped and L-shaped extension arrangement mode is convenient to install, can be matched with the approximately rectangular shape of the outer shell 300 ', fully utilizes the inner space of the outer shell 300', and meanwhile enables the bipolar breaker to be increased in size, but the longitudinal size is further reduced, the interval between the inlet and outlet terminals is larger, and the interphase insulation effect of the bipolar breaker is improved. Moreover, it should be noted that, although the first incoming line end and the second incoming line end are disposed at the left and right sides of the outer housing 300, the first incoming line terminal seat 11 'and the second incoming line terminal seat 21' may still be configured by bending to enable the first incoming line terminal seat 11 'and the second incoming line terminal seat 21' to extend up and down, so that the incoming line end and the outgoing line end maintain the layout manner of the upper incoming line and the lower outgoing line in parallel (as shown in fig. 13-14), and the layout of the external connection line of the bipolar circuit breaker is more concise.
The present embodiment is provided with the overcurrent release 7 ', the arc extinguishing chamber 8 ', the operating mechanism 9 ', and the like as in embodiment 1, and has the technical effects of the same components as in embodiment 1. It should be noted that, since the first incoming end is disposed on the left side of the outer housing 300 ' in the direction of the air jet of the arc extinguishing chamber 8 ', an arc separating piece 10 is also disposed between the arc extinguishing chamber 8 ' and the first incoming end in this embodiment to prevent the arc from overflowing the ablated terminal.
Fig. 14 shows a scenario in which the bipolar circuit breaker of the present embodiment is applied in a distribution box. The bipolar circuit breakers are respectively led in from the left side and the right side of the outer shell 300', are crossed and overlapped in the middle of the circuit breakers, and are led out in parallel along the lower end, so that the outgoing line end can be conveniently connected with other miniature circuit breakers in the distribution box.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (14)
1. A bipolar circuit breaker comprising an outer housing, a first pole conductive trace extending within the outer housing and having a first inlet end and a first outlet end, and a second pole conductive trace extending within the outer housing and having a second inlet end and a second outlet end, the first pole conductive trace and the second pole conductive trace further having a first contact system and a second contact system, respectively, characterized in that: the first pole conductive circuit and the second pole conductive circuit are mutually intersected, the first wire outlet end and the second wire outlet end are exposed out of the first side edge of the outer shell body at intervals side by side through a first wire outlet terminal seat and a second wire outlet terminal seat respectively, the extending direction of the first wire outlet terminal seat and the extending direction of the second wire outlet terminal seat are defined to be longitudinal, and the first contact system and the second contact system are transversely arranged in the outer shell body in parallel and approximately located in the span range between the first wire outlet end and the second wire outlet end.
2. The bipolar circuit breaker of claim 1 wherein: the first contact system and the second contact system are respectively provided with a first breaking movement track and a second breaking movement track, and the extending directions of the first outgoing line terminal seat and the second outgoing line terminal seat are perpendicular to movement planes where the first breaking movement track and the second breaking movement track are located.
3. The bipolar circuit breaker of claim 2, wherein: the first wire inlet end and the second wire inlet end are respectively exposed out of the second side edge of the outer shell at intervals side by side through the first wire inlet terminal seat and the second wire inlet terminal seat, and the second side edge is positioned on the opposite side to the first side edge.
4. A bipolar circuit breaker according to claim 3, characterized in that: the connecting line of the first incoming line terminal seat and the second outgoing line terminal seat is parallel to the connecting line of the second incoming line terminal seat and the first outgoing line terminal seat.
5. A bipolar circuit breaker according to claim 3, characterized in that: the first electrode conductive line is arranged in a reverse Z-shaped bending extending mode from the first wire inlet end to the first wire outlet end approximately in a downward-rightward-downward mode, and the second electrode conductive line is arranged in a Z-shaped bending extending mode from the second wire inlet end to the second wire outlet end approximately in a downward-leftward-downward mode.
6. The bipolar circuit breaker of claim 5 wherein: the first wire inlet end comprises a first wire inlet terminal seat and a first conductive copper bar, the first pole conductive circuit further comprises a first hard connection and a first soft connection, the first wire inlet terminal seat, the first conductive copper bar, the first hard connection, the first soft connection, the first contact system and the first wire outlet end are sequentially connected, the first wire inlet terminal seat, the first conductive copper bar and the first wire outlet end are longitudinally arranged up and down, the first contact system and the first soft connection are transversely arranged left and right, the first hard connection is a bent sheet body, and the first hard connection is connected with the first conductive copper bar longitudinally up and down and the first soft connection transversely arranged left and right through a bending structure of the first hard connection, so that the first pole conductive circuit is approximately arranged in a reverse Z-shaped bent extending manner from the first wire inlet end to the first wire outlet end in a downward-right-downward manner; the second wire inlet end comprises a second wire inlet terminal seat and a second conductive copper bar, the second conductive circuit further comprises a second hard connection and a second soft connection, the second wire inlet terminal seat, the second conductive copper bar, a second contact system, the second soft connection, the second hard connection and a second wire outlet end are sequentially connected, the second wire inlet terminal seat, the second conductive copper bar and the second wire outlet end are longitudinally arranged up and down, the second contact system and the second soft connection are transversely arranged left and right, the second hard connection is a bent sheet body, the second soft connection transversely arranged left and right and the second wire outlet end longitudinally arranged up and down are connected through a bent structure of the second hard connection, and accordingly the second conductive circuit is arranged in a Z-shaped bent extending mode from the second wire inlet end to the second wire outlet end in a mode of 'downwards-leftwards-downwards'.
7. The bipolar circuit breaker of claim 6 wherein: the system further comprises a first overcurrent release and a second overcurrent release respectively mounted on the first hard connection and the second hard connection.
8. The bipolar circuit breaker of claim 6 wherein: the device further comprises a first arc-extinguishing chamber and a second arc-extinguishing chamber which respectively cover the first breaking movement track and the second breaking movement track.
9. The bipolar circuit breaker of claim 1 wherein: the first outgoing line terminal seat is positioned on the right side of the second outgoing line terminal seat in the transverse direction, and the first incoming line end and the second incoming line end are respectively arranged on the left side edge and the right side edge of the outer shell.
10. The bipolar circuit breaker of claim 9 wherein: the first electrode conductive line is arranged in an inverted L-shaped bending extending mode from the first wire inlet end to the first wire outlet end approximately in a right-downward mode, and the second electrode conductive line is arranged in an L-shaped bending extending mode from the second wire inlet end to the second wire outlet end approximately in a left-downward mode.
11. The bipolar circuit breaker of claim 10 wherein: the first incoming line end comprises a first incoming line terminal seat, the second incoming line end comprises a second incoming line terminal seat, and the first incoming line terminal seat and the second incoming line terminal seat are arranged in an extending mode from top to bottom through bending.
12. The bipolar circuit breaker of claim 10 wherein: the first pole conductive circuit comprises a first wire inlet end, a first contact system, a first soft connection, a first hard connection and a first wire outlet end which are sequentially connected, wherein the first wire inlet end, the first contact system and the first soft connection are transversely arranged left and right, the first wire outlet end is longitudinally arranged up and down, the first hard connection is a bent sheet body, and the first soft connection and the longitudinal first wire outlet end are connected through a bending structure of the first hard connection, so that the first pole conductive circuit is approximately arranged in an inverted L-shaped bending extending mode from the first wire inlet end to the first wire outlet end in a rightward-downward mode; the second electrode conductive circuit comprises a second wire inlet end, a second hard connection, a second soft connection, a second contact system and a second wire outlet end which are sequentially connected, wherein the second wire inlet end, the second hard connection, the second soft connection and the second contact system are transversely arranged left and right, the second wire outlet end is approximately longitudinally arranged, and accordingly the second electrode conductive circuit is approximately arranged in a L-shaped bending extending mode of leftwards and downwards from the second wire inlet end to the second wire outlet end.
13. The bipolar circuit breaker of claim 1 wherein: the device also comprises an operating mechanism which is transversely arranged on the first contact system or the second contact system and is used for controlling the opening and closing of the first contact system or the second contact system, and the first contact system and the second contact system are synchronously connected in a linkage way.
14. A block terminal, includes the bipolar breaker of setting at its incoming line end, its characterized in that: the bipolar circuit breaker is a bipolar circuit breaker according to any one of claims 1-13.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011372872.2A CN112366123B (en) | 2020-11-30 | 2020-11-30 | A double-pole circuit breaker and a distribution box having the double-pole circuit breaker |
| US17/537,359 US11728112B2 (en) | 2020-11-30 | 2021-11-29 | Double-pole circuit breaker and distribution box |
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| CN202011372872.2A CN112366123B (en) | 2020-11-30 | 2020-11-30 | A double-pole circuit breaker and a distribution box having the double-pole circuit breaker |
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| CN112366123B true CN112366123B (en) | 2024-11-12 |
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| CN213691927U (en) * | 2020-11-30 | 2021-07-13 | 厦门宏发开关设备有限公司 | A double-pole circuit breaker and distribution box with the double-pole circuit breaker |
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| CN101958205B (en) * | 2009-12-09 | 2013-01-16 | 上海诺雅克电气有限公司 | Selective protection circuit breaker |
| DE102012112779A1 (en) * | 2012-12-20 | 2014-06-26 | Eaton Electrical Ip Gmbh & Co. Kg | Electrical switching device |
| CN105719918B (en) * | 2016-04-15 | 2019-06-21 | 常熟开关制造有限公司(原常熟开关厂） | Multibreak breaker of plastic casing |
| CN105914109B (en) * | 2016-07-06 | 2018-09-04 | 上海电科电器科技有限公司 | The galvanic circle of breaker |
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| CN213691927U (en) * | 2020-11-30 | 2021-07-13 | 厦门宏发开关设备有限公司 | A double-pole circuit breaker and distribution box with the double-pole circuit breaker |
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