CN218385065U - Integrated circuit breaker structure - Google Patents

Abstract

The utility model discloses an integrated circuit breaker structure, including the circuit breaker unit, the circuit breaker unit is including the lower generating line that is used for the output, its characterized in that: the number of the breaker units is N, and N is more than or equal to 2; the buses of the breaker units are fused and then output through the shared conducting bar, so that a parallel integrated breaker structure capable of being accommodated in the same switch cabinet is formed. Compared with the prior art, the utility model has the advantages of: the special integrated circuit breaker of two and above multichannel power input is designed, and the mode that the output of the parallelly connected integrated circuit breaker of multichannel was arranged with the sharing conductor replaces traditional parallel system's sharing generating line, can couple the cabinet-combining of monomer cubical switchboard to this type compression integration of common generating line in the parallel cabinet of a multichannel power input to reduce the consumptive material cost, reduce occupation space.

Description

Integrated circuit breaker structure

Technical Field

The utility model belongs to the technical field of transmission equipment technique and specifically relates to an integrated circuit breaker structure.

Background

The multi-power-supply parallel output is widely applied to power generation occasions such as photovoltaic power generation, wind power generation, internal combustion engine generation, gas turbine generation and the like. The traditional power parallel mode is generally a power parallel system formed by connecting a plurality of single switch cabinets in parallel to a common bus, for example, a triple cabinet bus bridge structure disclosed in the chinese patent application No. 202121101032.2, which includes a first switch cabinet, a second switch cabinet, a third switch cabinet, a first bus bar, a second bus bar, a third bus bar, a bus bridge and a copper bar; the first busbar, the second busbar and the third busbar are respectively led out from the upper end openings of the first switch cabinet, the second switch cabinet and the third switch cabinet, and the copper bars penetrate through the busbar bridge and are respectively connected with the first busbar, the second busbar and the third busbar.

The significant disadvantages of such systems are the large size, the high material consumption of the parallel common bus and the high energy consumption of the system itself.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art existence, provide an integrated circuit breaker structure, reduce the consumptive material cost, reduce occupation space.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: an integrated circuit breaker structure comprising a circuit breaker unit including a bus for output, characterized in that: the number of the breaker units is N, and N is more than or equal to 2;

buses of the breaker units are fused and then output through the shared conducting bar, so that a parallel integrated breaker structure capable of being accommodated in the same switch cabinet is formed.

In order to play supporting and insulating roles and simultaneously consider aspects such as short-circuit current and arc energy, the integrated circuit breaker structure further comprises a connecting box body arranged among the circuit breaker units, a space in the connecting box body forms a cavity shared by the circuit breaker units, buses of the circuit breaker units extend into the cavity for fusion, and the conducting bars extend out of the connecting box body for output.

In order to facilitate integration, positioning of the breaker units, the integrated circuit breaker structure further comprises a frame within which the breaker units are supported.

In order to avoid phase sequence misconnection, buses of each breaker unit supply power for three phases, and phases of different buses are fused into a common conducting bar for output in a one-to-one correspondence manner.

The bus bars have A, B, C, N phases, and the conductive bars are engraved with corresponding A, B, C, N phase sequence marks.

In order to further make the structure compact, the space in the connecting box body is filled with insulating materials.

According to the utility model discloses an aspect, the generating line is the generating line down, the circuit breaker unit includes contact system, contact system includes the moving contact subassembly, the moving contact subassembly includes contact support, contact spring, flexible coupling and moving contact, be provided with contact spring between moving contact and the contact support, connect through the flexible coupling between moving contact and the generating line down.

According to the utility model discloses a further aspect, the generating line is last generating line, the circuit breaker unit includes contact system and arc extinguishing mechanism, contact system includes static contact and run-on plate, the static contact sets up on last generating line, the one end of run-on plate is fixed on last generating line and is connected with the static contact, the other end of run-on plate is connected in arc extinguishing mechanism.

Compared with the prior art, the utility model has the advantages of: the special integrated circuit breaker of two way and above multichannel power input is designed, the mode that the parallelly connected integrated circuit breaker's of multichannel output used the sharing of leading electrical drainage replaces traditional parallelly connected system's sharing generating line, can connect the monomer cubical switchboard cabinet to this kind of type compression integration of common generating line in the parallelly connected cabinet of multichannel power input to reduce the consumptive material cost, reduce occupation space.

Drawings

Fig. 1 is a schematic diagram of an integrated circuit breaker structure according to a first embodiment of the present invention;

fig. 2 is a side view of an integrated circuit breaker structure according to a first embodiment of the present invention;

fig. 3 is a sectional view of an integrated circuit breaker structure according to a first embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of a contact system structure and a connection box of a circuit breaker unit according to a first embodiment of the present invention;

fig. 5 is a front view of a common conductive bar of an integrated circuit breaker structure according to a first embodiment of the present invention;

fig. 6 is a top view of an integrated circuit breaker structure according to a second embodiment of the present invention;

fig. 7 is a top view of an integrated circuit breaker structure according to a third embodiment of the present invention;

fig. 8 is a top view of an integrated circuit breaker structure according to a fourth embodiment of the present invention;

fig. 9 is a circuit diagram of the integrated circuit breaker structure of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, since the disclosed embodiments of the invention can be arranged in different orientations, these directional terms are for illustrative purposes only and should not be considered as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Example one

Referring to fig. 1 to 4, an integrated circuit breaker structure includes N circuit breaker units 100, N ≧ 2, N =2 in the present embodiment.

The two circuit breaker units 100 are oppositely arranged and supported in the same frame 200 to form a large-scale multi-unit parallel integrated circuit breaker structure. A connection case 300 is provided between the two circuit breaker units 100, and the circuit breaker units 100, the frame 200 and the connection case 300 are integrally formed. The connection case 300 has a hollow structure, and a space therein constitutes a sealed chamber common to the two breaker units 100. Due to the multiple power inputs, the parallel integrated output structure generally carries a large current, and for the considerations of support, insulation, short-circuit current, and arc energy, the lower bus 107 and the common conductive bar 400 of each breaker unit 100 are installed in a common sealed cavity (described in detail below), and the connection box 300 is made of a special DMC or SMC material. The conductive bar 400 may be a copper bar or an aluminum bar, and in this embodiment, a copper bar is used.

Each circuit breaker unit 100 has the same structure as an existing circuit breaker, and includes an operating mechanism 101, a contact system, an arc extinguishing mechanism 103, an undervoltage release 104, a closing release 105, an upper bus 106, a lower bus 107, an intelligent controller (not shown), a secondary connection terminal (not shown), and the like. The contact system comprises a fixed contact 1021, an arc striking piece 1022, a contact support 1023, a contact spring 1024, a flexible connection 1025 and a moving contact 1026, wherein the fixed contact 1021 is arranged on the upper bus 106, one end of the arc striking piece 1022 is fixed on the upper bus 106 and connected with the fixed contact 1021, and the other end of the arc striking piece 1022 is connected in the arc extinguishing mechanism 103. The contact support 1023, the contact spring 1024, the flexible connection 1025 and the movable contact 1026 form a movable contact assembly, the contact spring 1024 is arranged between the movable contact 1026 and the contact support 1023, and the movable contact 1026 is connected with the lower bus 107 through the flexible connection 1025.

Referring to fig. 3 to 5, the lower bus bars 107 of each circuit breaker unit 100 extend into the connection box 300, the lower bus bars 107 supply power for three phases, A, B, C, N phases of each lower bus bar 107 are fused in a common sealed cavity and then led out through a common conductive bar 400, the conductive bar 400 extends out of the connection box 300 for output, and the conductive bar 400 is provided with a corresponding phase sequence mark (A, B, C, N) to prevent a phase sequence misconnection condition. The phases of different lower bus bars 107 are fused into a common conducting bar 400 for output in a one-to-one correspondence manner.

The space inside the connection housing 300 is filled with an insulating material 301, whereby the interval between the phases can be made as small as possible, resulting in a more compact structure.

The output terminal conducting bar 400 of the parallel integrated circuit breaker with multiple power inputs in this embodiment is led out of the cavity after the lower buses 107 of the circuit breaker units 100 are fused with each other in the shared sealed cavity, and are shared with each other, which replaces the traditional mode that a parallel system is connected to a shared bus. And the parallel integrated circuit breaker of this embodiment can be installed in same parallel and the switch cabinet, has replaced the mode of a plurality of traditional monomer switch cabinets cabinet-combining, realizes the input of multichannel power, also greatly reduced use cost when integrated parallel output, practiced thrift the resource.

Each circuit breaker unit 100 is an independent operation individual, can be independently or jointly operated in parallel, and can be arbitrarily added or quit the operation sequence as required without influencing the operation condition of other circuit breaker units 100. If the circuit breaker unit 100 employs a drawer-type frame circuit breaker, the replacement and maintenance of the equipment unit can be performed well.

The utility of the applicable aspect of the circuit breaker structure of this embodiment: a single switch cabinet is arranged in the traditional multi-power input mode, a cabinet-combining mode is adopted between the cabinets, but due to different manufacturers and manufacturing processes or other factors, the cabinets are difficult to combine, or outgoing lines after the cabinets are combined are uneven and uneven, the appearance is influenced, the size and the style of the switch cabinet need to be specially customized, and the switch cabinet is kept uniform. The circuit breaker structure of the embodiment can be installed in the same parallel switch cabinet, so that a plurality of matters generated by cabinet combination are omitted.

The circuit breaker structure of this embodiment is economically practical: the circuit breaker structure of the embodiment can be installed in one parallel switch cabinet, the whole volume is smaller than that of a traditional cabinet combination mode of a plurality of single switch cabinets, and the cost of the traditional cabinet combination of a plurality of switch cabinets and the maintenance cost of a plurality of subsequent switch cabinets are saved; meanwhile, the output end of the circuit breaker structure of the embodiment adopts a shared conductive bar mode, and the cost of connecting a traditional parallel system to a shared bus is saved.

In the present embodiment, as can be seen from the above, the parallel connection of the breaker units 100 is realized by the fusion of the lower bus bars 107 into the conductive bar 400, and alternatively, the upper bus bars 106 can be fused in the same manner. In specific implementation, the corresponding outgoing bus may be selected according to whether the breaker unit 100 adopts an upper outgoing line mode or a lower outgoing line mode.

Example two

Referring to fig. 6, in the present embodiment, the difference from the first embodiment is that N =3, that is, three breaker units 100 are provided in one frame 200, arranged in a triangle.

EXAMPLE III

Referring to fig. 7, in the present embodiment, the difference from the first embodiment is that N =4, that is, four breaker units 100 are provided in one frame 200, arranged in a square.

Example four

Referring to fig. 8, in the present embodiment, the difference from the first embodiment is that N =6, that is, six breaker units 100 are provided in one frame 200, arranged in a hexagonal shape.

Claims (8)

1. An integrated circuit breaker structure comprising a circuit breaker unit (100), said circuit breaker unit (100) comprising a bus for output, characterized in that: the number of the breaker units (100) is N, and N is more than or equal to 2;

the buses of the breaker units (100) are fused and then output through a common conducting bar (400), so that a parallel integrated breaker structure capable of being accommodated in the same switch cabinet is formed.

2. The integrated circuit breaker structure of claim 1, wherein: the integrated circuit breaker structure is characterized by further comprising a connecting box body (300) arranged between the circuit breaker units (100), the space in the connecting box body (300) forms a cavity shared by the circuit breaker units (100), a bus of each circuit breaker unit (100) extends to the cavity to be fused, and the conducting bar (400) extends to the outside of the connecting box body (300) to be output.

3. The integrated circuit breaker structure of claim 1 or 2, wherein: the integrated circuit breaker structure further comprises a frame (200), each circuit breaker unit (100) being supported within the frame (200).

4. The integrated circuit breaker structure of claim 1 or 2, wherein: the buses of each breaker unit (100) are supplied with three phases, and the phases of different buses are fused into a common conducting bar (400) in a one-to-one correspondence mode for output.

5. The integrated circuit breaker structure of claim 4, wherein: the bus bar is provided with A, B, C, N phases, and the conductive bar (400) is engraved with a corresponding A, B, C, N phase sequence mark.

6. The integrated circuit breaker structure of claim 2, wherein: the space in the connection box body (300) is filled with an insulating material (301).

7. The integrated circuit breaker structure of claim 1 or 2, wherein: the bus is lower bus (107), circuit breaker unit (100) includes the contact system, the contact system includes the moving contact subassembly, the moving contact subassembly includes contact support (1023), contact spring (1024), flexible coupling (1025) and moving contact (1026), be provided with contact spring (1024) between moving contact (1026) and the contact support (1023), connect through flexible coupling (1025) between moving contact (1026) and lower bus (107).

8. The integrated circuit breaker structure of claim 1 or 2, wherein: the bus is an upper bus (106), the circuit breaker unit (100) comprises a contact system and an arc extinguishing mechanism (103), the contact system comprises a fixed contact (1021) and an arc striking plate (1022), the fixed contact (1021) is arranged on the upper bus (106), one end of the arc striking plate (1022) is fixed on the upper bus (106) and is connected with the fixed contact (1021), and the other end of the arc striking plate (1022) is connected in the arc extinguishing mechanism (103).

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