CN203415832U - Breaker arrangement structure of photovoltaic DC power distribution cabinet - Google Patents

Breaker arrangement structure of photovoltaic DC power distribution cabinet Download PDF

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Publication number
CN203415832U
CN203415832U CN201320543013.4U CN201320543013U CN203415832U CN 203415832 U CN203415832 U CN 203415832U CN 201320543013 U CN201320543013 U CN 201320543013U CN 203415832 U CN203415832 U CN 203415832U
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CN
China
Prior art keywords
positive
power distribution
negative
distribution cabinet
circuit breaker
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN201320543013.4U
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Chinese (zh)
Inventor
傅建民
龚进
周华江
胡建刚
徐铭
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Changshu Switchgear Manufacturing Co Ltd
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Changshu Switchgear Manufacturing Co Ltd
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Priority to CN201320543013.4U priority Critical patent/CN203415832U/en
Application granted granted Critical
Publication of CN203415832U publication Critical patent/CN203415832U/en
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Expired - Lifetime legal-status Critical Current

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Abstract

A breaker arrangement structure of a photovoltaic DC power distribution cabinet belongs to the technical field of photovoltaic distribution system, and comprises a power distribution cabinet body, a mounting plate, a plurality of DC breakers, breaker external busbars and a conflux bar; the mounting plate is fixed on the power distribution cabinet body; the breaker arrangement structure is characterized in that the plurality of DC breakers are arranged in pairs side by side on the mounting plate and form dual-column vertical arrangement from top to bottom; the conflux bar is formed by a positive and a negative conflux bars, the two conflux bars form dual--column vertical arrangement from top to bottom, and are positioned in the rear portion of the mounting plate and symmetrically distributed between two columns of DC breakers; each breaker external busbar comprises a positive and a negative wire inlet bars and a positive and a negative wire outlet bars; the positive and negative wire inlet bars are connected to one end, far away from the conflux bar, of the DC breaker; one ends of the positive and negative wire outlet bars are connected with the other end, close to the conflux bar, of the DC breaker; the other ends of the positive and negative wire outlet bars are electrically connected to the positive and negative conflux bars. The number of matched busbars is saved, wiring is easy, and heat radiation in the cabinet is convenient.

Description

A kind of circuit breaker arrangement of photovoltaic DC power distribution cabinet
Technical field
The utility model belongs to photovoltaic distribution system technical field, is specifically related to a kind of circuit breaker arrangement of photovoltaic DC power distribution cabinet.
Background technology
Photovoltaic DC power distribution cabinet is mainly used in large-sized photovoltaic power station; be used for connecting photovoltaic combiner box and photovoltaic DC-to-AC converter; and provide lightning protection and overcurrent protection; single crosstalk stream, voltage and lightning protection device state, the circuit-breaker status of monitoring photovoltaic array, access grid-connected inverter after the photovoltaic module power supply of header box output is confluxed again.Because photovoltaic DC power distribution cabinet will meet the access of multichannel header box, a plurality of DC circuit breakers of supporting needs are protected multiplex circuit.Existing DC circuit breaker is often single-row vertical array from top to bottom in cabinet, has taken space in a large amount of cabinets, and trace arrangements is chaotic, and wiring is loaded down with trivial details, needs a large amount of busbars supporting, is unfavorable for the heat radiation in cabinet simultaneously.
In view of above-mentioned prior art, be necessary the circuit breaker arrangement of existing photovoltaic DC power distribution cabinet to be improved, technical scheme described below produces under such background.
Summary of the invention
The purpose of this utility model is the circuit breaker arrangement that a kind of photovoltaic DC power distribution cabinet will be provided, and can effectively reduce circuit breaker taking up room in cabinet, saves supporting busbar quantity, is conducive to the heat radiation in cabinet simultaneously.
The purpose of this utility model reaches like this, a kind of circuit breaker arrangement of photovoltaic DC power distribution cabinet, comprise power distribution cabinet, mounting panel, a plurality of DC circuit breakers, the external busbar of a plurality of circuit breakers and bus-bar, described mounting panel is fixed on described power distribution cabinet, feature is: a plurality of DC circuit breakers are arranged on described mounting panel in pairs side by side, and forming biserial from top to bottom vertically arranges, described bus-bar is comprised of positive and negative two bus-bars, positive and negative two bus-bars form biserial from top to bottom and vertically arrange, and at described mounting panel rear and be symmetrically distributed between biserial DC circuit breaker, the external busbar of each circuit breaker comprises positive and negative two lead-in line rows and positive and negative two outlet rows, described positive and negative two lead-in line rows are connected to respectively on DC circuit breaker the one end away from bus-bar, and one end of described positive and negative two outlet rows is connected to respectively the other end of close bus-bar on DC circuit breaker, the other end of positive and negative two outlet rows is electrically connected to respectively positive and negative two bus-bars.
In a specific embodiment of the present utility model, the centre of described mounting panel offers the copper bar manhole appendix for supplying described lead-in line row and outlet row to pass.
In another specific embodiment of the present utility model, described power distribution cabinet is provided with external binding post below short transverse, described external binding post comprises terminal fixing plate, wire casing and terminal interface, described terminal fixing plate is fixed on the column in cabinet, described column is positioned at the left and right sides of the Width of power distribution cabinet, described terminal interface is arranged on the middle part of terminal fixing plate, and described wire casing is arranged on the outside surrounding of terminal fixing plate.
The utility model is due to a plurality of DC circuit breakers are adopted to the vertical cloth postpone of biserial, the beneficial effect having: compact conformation, wiring distance are short, can not only effectively reduce circuit breaker taking up room in cabinet, and can save supporting busbar quantity, facilitate wiring, be conducive to the heat radiation in cabinet simultaneously.
Accompanying drawing explanation
Fig. 1 is the front schematic view of photovoltaic DC power distribution cabinet described in the utility model.
Fig. 2 is the front partial enlarged drawing of photovoltaic DC power distribution cabinet described in the utility model.
Fig. 3 is the side partial enlarged drawing of photovoltaic DC power distribution cabinet described in the utility model.
Fig. 4 is the front section view of external binding post in photovoltaic DC power distribution cabinet described in the utility model.
Fig. 5 is the side sectional view of external binding post in photovoltaic DC power distribution cabinet described in the utility model.
In figure: 1. power distribution cabinet; 2. mounting panel, 21. copper bar manhole appendixs; 3. DC circuit breaker; 4. the external busbar of circuit breaker, 41. lead-in line rows, 42. outlet rows; 5. external binding post, 51. terminal interfaces, 52. wire casings, 53. terminal fixing plates; 6. column; 7. bus-bar.
Embodiment
In order to make the public can fully understand technical spirit of the present utility model and beneficial effect; applicant will describe in detail embodiment of the present utility model below by reference to the accompanying drawings; but applicant is not the restriction to technical scheme to the description of embodiment, anyly according to the utility model design, changes in the form rather than substance all and should be considered as protection range of the present utility model.
Refer to Fig. 1, Fig. 2 and Fig. 3, the utility model relates to a kind of circuit breaker arrangement of photovoltaic DC power distribution cabinet, comprise power distribution cabinet 1, mounting panel 2, a plurality of DC circuit breakers 3, the external busbar 4 of a plurality of circuit breakers and bus-bar 7, described mounting panel 2 is fixed on described power distribution cabinet 1, a plurality of DC circuit breakers 3 are arranged on described mounting panel 2 in pairs side by side, and forming biserial from top to bottom vertically arranges, specifically: a pair of (two) are set in the horizontal direction of described mounting panel 2 and are the DC circuit breaker 3 that front and back are arranged, and in the vertical direction of described mounting panel 2, be placed with above-mentioned multipair DC circuit breaker 3, thereby making circuit breaker form biserial vertically arranges, described bus-bar 7 is comprised of positive and negative two bus-bars, positive and negative two bus-bars form biserial from top to bottom and vertically arrange, and at described mounting panel 2 rears and be symmetrically distributed between biserial DC circuit breaker 3, the external busbar 4 of each circuit breaker comprises positive and negative two lead-in line rows 41 and positive and negative two outlet rows 42, described positive and negative two lead-in line rows 41 are connected to respectively on DC circuit breaker 3 one end away from bus-bar 7, and one end of described positive and negative two outlet rows 42 is connected to respectively the other end of close bus-bar 7 on DC circuit breaker 3, the other end of positive and negative two outlet rows 42 is electrically connected to respectively positive and negative two bus-bars.
Adopt the arrangement form of above-mentioned DC circuit breaker 3, make, in the inherent same level direction of cabinet, two DC circuit breakers 3 to be installed, relatively saved the space on cabinet inner height.In addition, adopt outlet row 42 connect the outlet terminal 32 of DC circuit breaker 3 and connect bus-bar 7, compare independent outlet and can save a large amount of supporting busbars, facilitate wiring; Meanwhile, reserve more space to cabinet chamber, be convenient to the heat radiation in cabinet.
The centre of described mounting panel 2 offers copper bar manhole appendix 21, and described lead-in line row 41 and outlet row 42 are through described copper bar manhole appendix 21.Offering of copper bar manhole appendix 21, makes lead-in line row 41 and outlet row 42 by this copper bar manhole appendix 21 by the short-range DC circuit breaker 3 that is electrically connected to of the busbars such as bus-bar at mounting panel 2 rears, to have saved copper bar.
Conventionally described DC circuit breaker 3 is at least two pairs four, according to how many adjustable DC circuit breakers of header box output circuit quantity, to adapt to actual needs.
Refer to Fig. 4 and Fig. 5, in order to make more convenient with extraneous the communicating by letter of photovoltaic DC power distribution cabinet, below DC power distribution cabinet short transverse, be provided with external binding post 5, described external binding post 5 comprises terminal fixing plate 53, wire casing 52 and terminal interface 51, described terminal fixing plate 53 is fixed on the column 6 in cabinet, described column 6 is positioned at the left and right sides of the Width of power distribution cabinet 1, described terminal interface 51 is arranged on the middle part of terminal fixing plate 53, and described wire casing 52 is arranged on the outside surrounding of terminal fixing plate 53.Described terminal interface 51 and wire casing 52 be all towards the rear side setting of cabinet, thereby when operator opens back door, can be easily to above-mentioned terminal interface 51 and wire casing 52 wiring.

Claims (3)

1. a kind of circuit breaker arrangement of photovoltaic DC power distribution cabinet, comprise power distribution cabinet (1), mounting panel (2), a plurality of DC circuit breakers (3), the external busbar of a plurality of circuit breakers (4) and bus-bar (7), described mounting panel (2) is fixed on described power distribution cabinet (1), it is characterized in that: a plurality of DC circuit breakers (3) are arranged on described mounting panel (2) in pairs side by side, and forming biserial from top to bottom vertically arranges, described bus-bar (7) is comprised of positive and negative two bus-bars, positive and negative two bus-bars form biserial from top to bottom and vertically arrange, and be positioned at described mounting panel (2) rear and be symmetrically distributed between biserial DC circuit breaker (3), the external busbar of each circuit breaker (4) comprises positive and negative two lead-in line rows (41) and positive and negative two outlet rows (42), described positive and negative two lead-in line rows (41) are connected to respectively the upper one end away from bus-bar (7) of DC circuit breaker (3), and one end of described positive and negative two outlet rows (42) is connected to respectively the upper other end near bus-bar (7) of DC circuit breaker (3), the other end of positive and negative two outlet rows (42) is electrically connected to respectively positive and negative two bus-bars.
2. the circuit breaker arrangement of a kind of photovoltaic DC power distribution cabinet according to claim 1, is characterized in that the centre of described mounting panel (2) offers the copper bar manhole appendix (21) for supplying described lead-in line row (41) and outlet row (42) to pass.
3. the circuit breaker arrangement of a kind of photovoltaic DC power distribution cabinet according to claim 1, it is characterized in that described power distribution cabinet (1) is provided with external binding post (5) below short transverse, described external binding post (5) comprises terminal fixing plate (53), wire casing (52) and terminal interface (51), described terminal fixing plate (53) is fixed on the column (6) in cabinet, described column (6) is positioned at the left and right sides of the Width of power distribution cabinet (1), described terminal interface (51) is arranged on the middle part of terminal fixing plate (53), described wire casing (52) is arranged on the outside surrounding of terminal fixing plate (53).
CN201320543013.4U 2013-09-03 2013-09-03 Breaker arrangement structure of photovoltaic DC power distribution cabinet Expired - Lifetime CN203415832U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320543013.4U CN203415832U (en) 2013-09-03 2013-09-03 Breaker arrangement structure of photovoltaic DC power distribution cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320543013.4U CN203415832U (en) 2013-09-03 2013-09-03 Breaker arrangement structure of photovoltaic DC power distribution cabinet

Publications (1)

Publication Number Publication Date
CN203415832U true CN203415832U (en) 2014-01-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103996978A (en) * 2014-06-12 2014-08-20 南车株洲电力机车研究所有限公司 Photovoltaic direct current distribution cabinet and assembly method thereof
WO2020125053A1 (en) * 2018-12-21 2020-06-25 华为技术有限公司 Power distribution apparatus and power distribution system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103996978A (en) * 2014-06-12 2014-08-20 南车株洲电力机车研究所有限公司 Photovoltaic direct current distribution cabinet and assembly method thereof
WO2020125053A1 (en) * 2018-12-21 2020-06-25 华为技术有限公司 Power distribution apparatus and power distribution system
US11784467B2 (en) 2018-12-21 2023-10-10 Huawei Technologies Co., Ltd. Power distribution equipment and power distribution system

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CX01 Expiry of patent term

Granted publication date: 20140129

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