CN120149961A

CN120149961A - AC combiner cabinet and energy storage container

Info

Publication number: CN120149961A
Application number: CN202510608391.3A
Authority: CN
Inventors: 葛少荣; 张鲁华; 孙学兵; 王祥; 刘朔臻; 王小杰
Original assignee: Zhejiang Jingke Energy Storage Co ltd
Current assignee: Zhejiang Jingke Energy Storage Co ltd
Priority date: 2025-05-13
Filing date: 2025-05-13
Publication date: 2025-06-13
Anticipated expiration: 2045-05-13
Also published as: CN120855094A; CN120149961B

Abstract

The present application relates to the technical field of energy storage systems, and proposes an AC junction box and an energy storage container, including: a main circuit breaker, having multiple input terminals and multiple output terminals, the multiple output terminals extending along a first direction to the wiring area at the bottom of the AC junction box; multiple sub-circuit breakers are arranged in sequence in the horizontal direction to form a circuit breaker unit, and multiple circuit breaker units are arranged in parallel and at intervals in the vertical direction; one end of each circuit breaker copper bar is connected to an output terminal of a sub-circuit breaker, and the other end forms an output terminal in the wiring area at the bottom of the AC junction box, multiple circuit breaker copper bars are arranged at intervals, and are connected one-to-one with multiple output terminals of multiple sub-circuit breakers; each main copper bar is connected to a corresponding input terminal of the main circuit breaker, and is connected to a corresponding input terminal of each sub-circuit breaker. At least the problem of wiring inconvenience caused by the reduction of the size of the AC junction box can be avoided.

Description

Alternating current convergence cabinet and energy storage container

Technical Field

The application relates to the technical field of energy storage systems, in particular to an alternating current bus cabinet and an energy storage container.

Background

The energy storage container is a highly integrated energy storage system solution, generally adopts a standard container as a carrier, and internally integrates core components such as a battery pack, a Battery Management System (BMS), an Energy Management System (EMS), an energy storage conversion system (PCS), a thermal management system, fire-fighting equipment and the like. The alternating current bus cabinet is a core component for realizing electric energy conversion, distribution and system integration in an energy storage conversion system (PCS).

In the prior art, as the demands for miniaturization and energy storage capacity of the energy storage container are increased, the space required by the battery pack is larger and larger, the size of the energy storage converter system is smaller and smaller, and particularly, the limitation on the width is larger and larger, how to reduce the size of the alternating current bus cabinet becomes the problem to be solved by the energy storage container.

Disclosure of Invention

Accordingly, it is necessary to provide an ac bus-bar cabinet and an energy storage container, which can at least reduce the size of the ac bus-bar cabinet, and at the same time reduce the size of the ac bus-bar cabinet, form a wiring area at the lower part of the ac bus-bar cabinet by copper bar connection, thereby avoiding the problem of inconvenient wiring after the size of the ac bus-bar cabinet is reduced.

To solve the above technical problems and other problems, according to some embodiments, an aspect of the present application provides an ac bus cabinet, including a main breaker having a plurality of input terminals and a plurality of output terminals extending in a first direction to a junction region of a lower portion of the ac bus cabinet;

The plurality of sub-circuit breakers are arranged at intervals in the horizontal direction in sequence to form a circuit breaker unit, the plurality of circuit breaker units are arranged at intervals in the vertical direction in parallel;

the circuit breaker copper bars are in a plurality, one end of each circuit breaker copper bar is connected with one output terminal of one sub circuit breaker, the other end of each circuit breaker copper bar forms an output terminal in a wiring area at the lower part of the alternating current bus cabinet, and the circuit breaker copper bars are arranged at intervals and are correspondingly connected with a plurality of output terminals of the sub circuit breakers one by one;

The main copper bars are multiple, and each main copper bar is connected with a corresponding input terminal of the main breaker and is connected with a corresponding input terminal of each sub-breaker.

In some embodiments, the breaker copper bars include a first breaker copper bar, a second breaker copper bar, and a third breaker copper bar;

One end of the first circuit breaker copper bar is connected with a sub-circuit breaker in a first target circuit breaker unit, and the other end of the first circuit breaker copper bar extends to a wiring area at the lower part of the alternating current bus cabinet along a first direction to form an output wiring terminal;

The first target circuit breaker unit is a circuit breaker unit close to a wiring area at the lower part of the alternating current bus cabinet, and the first direction is vertical and is close to the bottom surface of the alternating current bus cabinet.

In some embodiments, the second breaker copper bar has a connection portion extending in a first direction, a first bending portion extending in a second direction, a second bending portion extending in a third direction, the second breaker copper bar being connected with a sub-breaker in a second target breaker unit;

The second target circuit breaker unit is a circuit breaker unit which is not shielded by the main circuit breaker in the extending direction of the copper bar, the second direction is a direction which is horizontal and close to the back plate of the alternating current bus cabinet, and the third direction is a direction which is horizontal and far away from the back plate of the alternating current bus cabinet.

In some embodiments, the third breaker copper bar is connected with a sub-breaker in a third target breaker unit, a connection portion extending in a first direction, a first bending portion extending in a second direction, a second bending portion extending in a third direction, and a third bending portion extending in a fourth direction;

The third target circuit breaker unit is a circuit breaker unit which is shielded by the main circuit breaker in the extending direction of the copper bar, and the fourth direction is a direction which is horizontal and is close to the side plate of the alternating current bus cabinet.

In some embodiments, the connection part and the bending part of the copper bar of the circuit breaker are fixedly connected, and the first target circuit breaker, the second target circuit breaker and the third target circuit breaker respectively form a plurality of rows of output connection points which are arranged in parallel and at intervals in a wiring area at the lower part of the alternating current bus cabinet.

In some embodiments, the circuit breaker further comprises an insulating sleeve sleeved at the position of non-fixed connection of the circuit breaker copper bar;

the first bending parts extending along the second direction comprise a plurality of first sub-bending parts, and the lengths of the first sub-bending parts in the vertical direction are different and are circularly and alternately arranged, so that the two sides of the fixed connection part are both insulation sleeves;

the lengths of the second bending parts extending along the third direction are different in the vertical direction, and the second bending parts are circularly and alternately arranged, so that the two sides of the fixed connection part are both insulation sleeves;

The third bending parts extending along the fourth direction are different in length in the horizontal direction, so that output connection points which are arranged at intervals in the horizontal direction are formed in the wiring area at the lower part of the alternating current bus cabinet.

In some embodiments, further comprising a plurality of insulating mounts and a plurality of insulating posts;

The main circuit breaker and the sub circuit breaker are fixed on the insulating mounting frames, and the circuit breaker copper bars are fixed on the insulating mounting frames and/or other circuit breaker copper bars through the insulating columns.

In some embodiments, a wiring hole is formed on the side wall of the alternating current bus cabinet, and an external cable is connected with the copper bar of the wiring area through the wiring hole;

the wiring holes are located at positions corresponding to wiring areas at the lower part of the alternating current bus cabinet.

In some embodiments, the circuit breaker further comprises a control cabinet circuit breaker;

the control cabinet circuit breaker is arranged at a position, close to the side wall, in the first target circuit breaker unit, and the output end of the control cabinet circuit breaker extends to a wiring area at the lower part of the alternating current bus cabinet through the first circuit breaker copper bar.

In some embodiments, further comprising a cooling air duct, the cooling air duct comprising:

The air inlet duct is positioned at the lowest part of the alternating current convergence cabinet, and a plurality of openings corresponding to the positions of the circuit breakers are formed above the air inlet duct;

The air outlet channel is positioned at the uppermost part of the alternating current bus cabinet, and a plurality of openings corresponding to the positions of the circuit breakers are formed below the air outlet channel;

And a plurality of sub-cooling air channels are formed between the plurality of openings of the air inlet air channel and the plurality of openings of the air outlet air channel, and each sub-cooling air channel is used for cooling a plurality of sub-circuit breakers and circuit breaker copper bars on the paths of the sub-cooling air channels.

In some embodiments, the air inlet of the air inlet duct is connected with the air outlet of the air-cooled air conditioner, and the air outlet of the air outlet duct is connected with the air inlet of the air-cooled air conditioner.

In some embodiments, one air deflector group is formed at each opening position of the air inlet duct, and each air deflector group comprises a plurality of air deflectors arranged at intervals.

In some embodiments, the length of the air deflector close to the air inlet of the air inlet duct in each air deflector group is smaller, and the lengths of the air deflectors close to the air inlet of the air inlet duct in the same position of the plurality of air deflector groups are smaller, so that the cold air volume led out by each opening of the air outlet duct is the same.

The application further provides an energy storage container which comprises a control cabinet, an air-cooled air conditioner and the alternating current convergence cabinet in any embodiment.

In some embodiments, the air outlet of the air-cooled air conditioner is further connected with the air inlet of the control cabinet through a pipeline, the air outlet channel further comprises a control cabinet air outlet channel, the control cabinet air outlet channel comprises a control cabinet air outlet, and the control cabinet air outlet is connected with the air inlet of the air-cooled air conditioner.

The alternating current conflux cabinet and the energy storage container of the embodiment are connected with the circuit breaker through the special-shaped copper bars, and form a cooling air duct in the alternating current conflux cabinet, so that the size of the alternating current conflux cabinet can be reduced at least, and the alternating current conflux cabinet is reduced in size and connected through the copper bars, a wiring area is formed at the lower part of the alternating current conflux cabinet, the problem that wiring is inconvenient after the size of the alternating current conflux cabinet is reduced is avoided, and the problem that heat dissipation of the alternating current conflux cabinet is abnormal due to denser arrangement of the circuit breaker and the copper bars after the size of the alternating current conflux cabinet is reduced is avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other embodiments of the drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an AC bus cabinet according to an embodiment of the present application;

FIG. 2 is a schematic diagram II of an AC bus cabinet according to an embodiment of the present application;

FIG. 3 is a schematic diagram III of an AC bus cabinet according to an embodiment of the present application;

FIG. 4 is a schematic diagram of an AC bus cabinet according to an embodiment of the present application;

Fig. 5 is a schematic diagram of an air inlet duct according to an embodiment of the present application.

Reference numerals illustrate:

101. The circuit breaker comprises a main circuit breaker, 102, a sub circuit breaker, 104, a main copper bar, 105, a first circuit breaker copper bar, 106, a second circuit breaker copper bar, 107, a third circuit breaker copper bar, 108, a connecting part extending along a first direction, 109, a first bending part extending along a second direction, 110, a second bending part extending along a third direction, 111, a third bending part extending along a fourth direction, 112, a wiring area, 113, a control cabinet circuit breaker, 114, a circuit breaker unit, 201, a fixed connecting part, 202, an insulating column fixing part, 203, an insulating mounting frame, 204, an insulating column, 301, an air inlet channel, 302, an air outlet channel, 303, a sub cooling channel, 401, an air conditioner air outlet, 402, an air conditioner air inlet, 304, an air deflector group, 403, an alternating current bus cabinet, 404, a control cabinet, 405 and an air-cooled air conditioner.

Detailed Description

In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings. Preferred embodiments of the present application are shown in the drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Where the terms "comprising," "having," and "including" are used herein, another component may also be added unless explicitly defined terms such as "only," "consisting of," etc., are used. Unless mentioned to the contrary, singular terms may include plural and are not to be construed as being one in number.

It will be understood that, although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present application.

In the present application, unless explicitly specified and limited otherwise, the terms "connected," "coupled," and the like are to be construed broadly, and may be, for example, directly connected or indirectly connected through intermediaries, or may be in communication with each other between two elements or in an interaction relationship between the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-2, an ac bus bar 403 is provided in the present application, and the ac bus bar 403 includes a main breaker 101, a sub-breaker 102, a breaker copper bar, and a main copper bar 104.

Wherein the main breaker 101 has a plurality of input terminals and a plurality of output terminals extending in a first direction to the wiring area 112 at the lower portion of the ac bus bar 403.

1-2, The present application is exemplified by three circuit breakers, a main circuit breaker 101 and a sub circuit breaker 102 each having three inputs and three outputs.

Here, the number of the input terminals and the output terminals of the circuit breaker is not limited, and the type of the circuit breaker may be selected according to actual requirements.

The plurality of sub-circuit breakers 102 are arranged at intervals in the horizontal direction in sequence to form one circuit breaker unit 114, the plurality of circuit breaker units 114 are arranged at intervals in the vertical direction, and the plurality of circuit breaker units 114 are arranged in parallel.

Here, the number of sub-circuit breakers 102 and the number of circuit breaker units 114 in each circuit breaker unit 114 may be set according to the size of the actual ac bus bar 403.

In this way, the single-row sub-circuit breakers 102 which are sequentially arranged at intervals in the horizontal direction are arranged in a plurality of rows, so that a large amount of transverse space is saved.

The circuit breaker copper bars are multiple, one end of each circuit breaker copper bar is connected with one output terminal of one sub circuit breaker 102, the other end of each circuit breaker copper bar forms an output terminal in a wiring area 112 at the lower part of the alternating current bus cabinet 403, and the circuit breaker copper bars are arranged at intervals and are connected with a plurality of output terminals of the sub circuit breakers 102 in a one-to-one correspondence manner.

Here, a plurality of circuit breaker copper bars that the interval set up correspond with a plurality of sub-circuit breakers and are connected, have guaranteed promptly to remain between every circuit breaker copper bar and have had insulating interval, the sub-circuit breaker that the staff of being convenient for again discerns when the wiring corresponds with the copper bar.

Specifically, with continued reference to FIG. 1, the breaker copper bars include a first breaker copper bar 105, a second breaker copper bar 106, and a third breaker copper bar 107.

One end of the first breaker copper bar 105 is connected with the sub-breaker 102 in the first target breaker unit, and the other end of the first breaker copper bar 105 extends to the wiring area 112 at the lower part of the ac bus bar 403 along the first direction to form an output terminal.

The first target circuit breaker unit is a circuit breaker unit near the wiring area 112 at the lower part of the ac bus bar 403, and the first direction is a direction perpendicular to and near the bottom surface of the ac bus bar 403.

Specifically, with continued reference to fig. 1, the second circuit breaker copper bar 106 has a connection portion 108 extending along a first direction, a first bending portion 109 extending along a second direction, and a second bending portion 110 extending along a third direction, and the second circuit breaker copper bar 106 is connected to the sub-circuit breaker 102 in the second target circuit breaker unit 114.

The second target breaker unit is a breaker unit which is not shielded by the main breaker 101 in the extension direction of the copper bar, the second direction is a direction which is horizontal and is close to the back plate of the ac busbar 403, and the third direction is a direction which is horizontal and is far away from the back plate of the ac busbar 403.

In this way, the second circuit breaker copper bar 106 is made to cross the sub-circuit breaker 102 below the second target circuit breaker unit 114 by using the thickness direction of the ac bus bar 403 through the shape formed by the connection portion 108 of the second circuit breaker copper bar 106 extending in the first direction, the first bending portion 109 extending in the second direction, and the second bending portion 110 extending in the third direction, and the wiring terminal is formed in the wiring area 112, so that the problem that after the circuit breakers of multiple rows are formed, the wiring terminal of the circuit breaker is difficult to be wired by a worker due to the dense arrangement of the circuit breakers is avoided.

Specifically, with continued reference to fig. 1, the third breaker copper bar 107 is connected to the sub-breaker 102 in the third target breaker unit 114, and includes a connection portion 108 extending in the first direction, a first bent portion extending in the second direction, a second bent portion 110 extending in the third direction, and a third bent portion 111 extending in the fourth direction.

The third target breaker unit is a breaker unit shielded by the main breaker 101 in the extending direction of the copper bar, and the fourth direction is a direction horizontal and approaching the side plate of the ac busbar 403.

Here, the third breaker copper bar 107 cannot directly extend downward to the junction region 112 due to the blocking of the main breaker 101, and it is necessary to provide a third bent portion 111 extending in the fourth direction so that the third breaker copper bar 107 spans the main breaker 101 or the sub-breaker 102 in the thickness direction and also spans the main breaker 101 in the width direction to form a terminal at the junction region 112.

Here, due to the dense arrangement of the main circuit breaker and the sub circuit breaker, the main circuit breaker blocks the copper bar path of the sub circuit breaker which extends downwards to the wiring area through the copper bar, and the copper bar which is blocked still inconvenient to wire after directly extending to the copper bar of the main circuit breaker.

Specifically, the connection portion and the bending portion of the copper bar of the circuit breaker are fixedly connected, and the first target circuit breaker, the second target circuit breaker and the third target circuit breaker respectively form a plurality of rows of parallel and spaced output connection points in the wiring area 112 at the lower portion of the ac bus-bar 403.

In this way, the output connection points are all formed at the lower part of the alternating current bus cabinet 403, so that the width of the alternating current bus cabinet 403 can be reduced by arranging a plurality of rows of circuit breakers, the wiring difficulty can not be increased by arranging copper bars, and the applicability of the alternating current bus cabinet 403 is ensured.

Further, the positions of the multiple rows of output connection points of the wiring area 112 formed at the lower part of the ac bus bar 403 may correspond to the positions of the sub-circuit breakers 102, for example, the uppermost circuit breaker unit 114 may be disposed at a position closest to the back plate, and the lowermost circuit breaker unit 114 may be disposed at a position furthest from the back plate, so that the problem that it is difficult for a worker to make the multiple output connection points correspond to the circuit breakers is avoided.

As an example, when a plurality of rows of sub-circuit breakers are formed in the ac main tank 403, a plurality of rows of output connection points are also formed at the terminals of the ac main tank, the number of rows of output connection points corresponds to the number of rows of sub-circuit breakers, the arrangement mode of each row of output connection points is the same as that of the sub-circuit breakers, for example, when 3 three sub-circuit breakers are arranged in a row of sub-circuit breakers, among the output connection points corresponding to the row of sub-circuit breakers, the first three output connection points correspond to three output connection points of the first three sub-circuit breakers, the 4 th to 6 th output connection points correspond to the output connection points of the second three sub-circuit breakers, and the last three output connection points correspond to three output connection points of the third three sub-circuit breakers.

When the worker performs wiring, the number of the connection points of the sub-circuit breaker can be determined according to the positions of the output connection points, and the connection point of the sub-circuit breaker corresponding to the connection point is determined according to the structure diagram of the alternating current bus cabinet or the path for searching the copper bar.

In one embodiment, the lengths of the rows of output connection points of the row of output connection points which are farthest from the backboard are shortest, and the lengths of the rows of output connection points of the row of output connection points which are closest to the backboard are longest and the row of output connection points which are closest to the backboard are closest to the bottom, so that the connection of workers is facilitated.

As an example, when a plurality of rows of sub-circuit breakers are formed in the ac bus-bar 403, a plurality of rows of output connection points are also formed at the terminals of the ac bus-bar, the number of rows of output connection points corresponds to the number of rows of sub-circuit breakers, and while the arrangement of each row of output connection points is the same as that of the sub-circuit breakers, a plurality of rows of connection points may be formed, for example, when three rows of sub-circuit breakers are formed in the ac bus-bar 403, the length of the output connection point of the sub-circuit breaker of the lowest row is shortest, a row of connection points farthest from the back plate is formed, the length of the output connection point of the sub-circuit breaker of the uppermost row is longest and closest to the bottom, and the output connection point of the middle row of sub-circuit breakers forms a middle row of connection points, so that for three rows of sub-circuit breakers in the ac bus-bar 403, the connection points of the ac bus-bar 403 are staggered, and thus, no influence of the connection points by other output connection points is avoided by staff, and the staff is more convenient to perform the connection.

The number of main copper bars 104 is plural, each of which is connected to a corresponding one of the input terminals of the main circuit breaker and to a corresponding one of the input terminals of each of the sub-circuit breakers.

Here, the number of the main copper bars 104 is related to the number of the circuit breakers, for example, three circuit breakers are used to obtain three main copper bars 104.

Referring to fig. 2, in the present application, since the sub-circuit breakers 102 are arranged in two rows, the main copper bar 104 is C-like, and when three rows are arranged, the main copper bar 104 is E-shaped, and when more rows are arranged, only more transverse main copper bar 104 parts need to be added in the vertical direction. The lateral dimensions of the main copper bars 104 are related to the position of the sub-circuit breakers 102, and each main copper bar 104 needs to be laterally extended to cover a corresponding position of each sub-circuit breaker 102 to facilitate connection of the sub-circuit breakers 102 to the main copper bars 104.

Here, in order to ensure the insulation effect between the plurality of main copper bars 104, the plurality of main copper bars 104 are arranged along the direction away from the back plate at intervals, that is, the longitudinal interval distance of the main copper bars 104 is ensured, the interval distance of the main copper bars 104 in the thickness direction of the ac bus cabinet is ensured, and the thickness of the ac bus cabinet is further utilized, so that the effect of enhancing the insulation distance between the main copper bars is achieved.

With continued reference to fig. 2, an insulating sleeve (not shown) is further disposed in the ac bus 403 and is sleeved in the non-fixedly connected position of the copper bar of the circuit breaker.

Referring to fig. 1-2, the first bending portion 109 extending along the second direction includes a plurality of first sub-bending portions, and each of the first sub-bending portions has a different length in a vertical direction and is circularly and alternately arranged, so that two sides of the fixed connection portion 201 are insulation sleeves.

With continued reference to fig. 2, the second bending portions 110 extending along the third direction have different lengths in the vertical direction and are circularly and alternately arranged, so that the two sides of the fixed connection portion 201 are insulated sleeves.

Like this, both sides at fixed junction 201 are the copper bar that wraps insulating boot, have avoided because the too little problem that appears insulating anomaly of interval between the copper bar.

With continued reference to fig. 1-2, the third bending portion 111 extending in the fourth direction has different lengths in the horizontal direction, so that the connection areas 112 at the lower portion of the ac bus 403 form output connection points arranged at intervals in the horizontal direction.

Thus, by providing the third bending portions having different lengths, overlapping of the output connection points is avoided.

Optionally, when the length of the third bending portion is selected, the length of the third bending portion may be determined according to the position of the sub-breaker 102, so that the position of the connection point corresponds to the position of the sub-breaker 102, which is more convenient for the operator to wire.

With continued reference to fig. 1-2, the device further includes a plurality of insulating mounts 203 and a plurality of insulating columns.

The main circuit breaker 101 and the sub circuit breaker 102 are fixed on a plurality of insulating mounting frames 203, and the circuit breaker copper bars are fixed on the insulating mounting frames 203 and/or other circuit breaker copper bars through a plurality of insulating columns.

Here, the insulation column fixing portion 201 and the insulation sleeve on the copper bar may exist at the same time, and thus, the insulation columns do not need to be arranged in a staggered manner as the fixing portion 201.

With continued reference to fig. 1-2, a wiring hole is formed on a side wall of the ac bus bar 403, and an external cable is connected to the copper bar of the wiring area 112 through the wiring hole.

Wherein the wiring holes are located at positions corresponding to the wiring areas 112 at the lower part of the ac bus bar 403.

With continued reference to fig. 1-2, the ac combiner 403 further includes a control cabinet circuit breaker 113.

The control cabinet circuit breaker 113 is disposed in the first target circuit breaker unit 114 near a side wall, and an output end of the control cabinet circuit breaker 113 extends to a wiring area 112 at a lower portion of the ac bus bar 403 through the first circuit breaker copper bar 105.

Here, the control cabinet circuit breaker 113 is so connected to the control cabinet that the control cabinet circuit breaker 113 needs to be disposed at the lowest row closest to the control cabinet, and thus, the copper bar of the control cabinet circuit breaker 113 needs to have the output end extended to the junction area 112 at the lower portion of the ac combiner cabinet 403 through the first circuit breaker copper bar 105.

Referring to fig. 3-4, the ac combiner cabinet 403 further includes a cooling air duct.

The cooling air duct comprises an air inlet duct 301, an air outlet duct 302, a plurality of sub-cooling air ducts 303, a plurality of sub-circuit breakers 102 and copper bars, wherein the air inlet duct 301 is positioned at the lowest part of the alternating current convergence cabinet 403, the plurality of openings corresponding to the circuit breakers are formed above the air inlet duct 301, the plurality of openings corresponding to the circuit breakers are formed below the air outlet duct 302, the plurality of sub-cooling air ducts 303 are formed between the plurality of openings of the air inlet duct 301 and the plurality of openings of the air outlet duct 302, and each sub-cooling air duct 303 is used for cooling the plurality of sub-circuit breakers 102 and the copper bars on the paths of the sub-cooling air ducts.

The air inlet of the air inlet duct 301 is connected with the air outlet of the air-cooled air conditioner 405, and the air outlet of the air outlet duct 302 is connected with the air inlet of the air-cooled air conditioner 405.

Thus, the problem of abnormal heat dissipation of the alternating current bus cabinet 403 due to denser arrangement of the circuit breakers and the copper bars after the size of the alternating current bus cabinet 403 is reduced is avoided.

With continued reference to fig. 3, an air deflector group 304 is formed at each opening of the air inlet duct 301, and each air deflector group 304 includes a plurality of air deflectors arranged at intervals.

The smaller the length of the air deflector close to the air inlet of the air inlet duct 301 in each air deflector group 304, the smaller the lengths of the air deflectors close to the air inlet of the air inlet duct 301 in the same position of the plurality of air deflector groups 304, so that the air quantity of the cold air led out from each opening of the air outlet duct 302 is the same.

Here, due to the influence of wind pressure and wind speed, the air guide device is provided with a plurality of air guide plates at the openings of the air guide channels, so that the air quantity blown out by each opening of the air guide channels is the same.

Referring to fig. 3-5, an exemplary embodiment of the present invention includes that each set of air deflectors corresponds to a cooling opening, the size of each cooling opening is the same, the length of each air deflector closer to the air inlet of the air guide channel is smaller and the air deflector further away from the bottom of the air guide channel, and for a single air deflector at the same position of each set of air deflectors, the shorter the length of each air deflector closer to the air inlet of the air guide channel is, the further away from the bottom of the air guide channel, the larger the wind speed and the smaller the wind pressure are, the smaller the wind speed and the larger the wind pressure are, so that the longer the air deflector is required to obtain enough wind volume, the same wind volume is ensured to be intercepted by each air deflector set 304, the cooling effect of the air guide channel on the ac bus-bar 403 is ensured, and the wind volume of each cooling channel corresponding to each cooling opening is more even.

As an example, referring to fig. 5, three air deflectors may be used as one air deflector group 304. The air deflector groups 304 closest to the air inlet are 1 group, the air deflector groups 304 farthest from the air inlet are 9 groups, the first air deflector closest to the air inlet and the third air deflector farthest from the air inlet in each group, for example, in the 1 group, the length of the first air deflector is smaller than that of the second air deflector and smaller than that of the third air deflector, and for example, the length of the first air deflector of the 1 group is smaller than that of the first air deflector of the 2 groups compared with that of the 2 groups, the length of the second air deflector of the 1 group is smaller than that of the second air deflector of the 2 groups, and the length of the third air deflector of the 1 group is smaller than that of the third air deflector of the 2 groups.

Further, as shown in fig. 5, each air deflector includes a vertical portion and an inclined portion, the vertical portion may be a fixed length, the length of the vertical portion of the plurality of air deflectors of 2 groups should be greater than the length of the vertical portion of the plurality of air deflectors of 1 group by 5% -8%, thus, the initial balance of the total wind resistance of each air outlet is achieved by compensating the air flow attenuation through the length of the vertical portion, the inclination angle of the inclined portion may be different, the different inclination angles can compensate the local pressure loss caused by the difference of the lengths, the flow deviation of the air outlet is further reduced, for example, the inclination angle of the air deflector groups 1-3 close to the air inlet may be 25 ° -40 °, the inclination angle of the air deflector groups 7-9 away from the air inlet may be 15 ° -30 °, and the inclination angle of the air deflector groups 4-6 which are interrupted may be 20 ° -35 °.

The inclination angle of the inclined part is an included angle a between the bottom end of the inclined part and the vertical line.

Referring to fig. 4, in one exemplary embodiment, an energy storage container is provided comprising a control cabinet, an air cooled air conditioner 405, and an ac combiner cabinet 403 according to any of the above embodiments.

With continued reference to fig. 4, since the air-cooled air conditioner 405, the main control cabinet and the ac convergence cabinet 403 need to be formed in the same space, the thickness of the control cabinet is reduced, and the air-cooled air conditioner 405 is integrated on the door at a position corresponding to the control cabinet, so that after the door is closed, the energy storage container forms a regular cuboid, and no external machine of the air conditioner is required to be arranged at other positions.

Specifically, the air conditioner air outlet 401 of the air-cooled air conditioner 405 is further connected with the air inlet of the control cabinet through a pipeline, the air outlet channel 302 further comprises a control cabinet air outlet channel, the control cabinet air outlet channel comprises a control cabinet air outlet, and the control cabinet air outlet is connected with the air conditioner air inlet 402 of the air-cooled air conditioner 405.

Referring to fig. 3-4, the control cabinet air outlet duct and the air outlet duct 302 of the ac combiner cabinet 403 may be integrated together, and both may be connected to the air conditioner air inlet 402.

In the ac busbar cabinet 403 and the energy storage container according to the above embodiments, the special-shaped copper bars are connected with the circuit breaker, and a cooling air duct is formed in the ac busbar cabinet 403, so that at least the size of the ac busbar cabinet 403 can be reduced, and the wiring area 112 is formed at the lower part of the ac busbar cabinet 403 while the size of the ac busbar cabinet 403 is reduced, so that the problem that wiring is inconvenient after the size of the ac busbar cabinet 403 is reduced is avoided, and the problem that heat dissipation of the ac busbar cabinet 403 is abnormal due to denser arrangement of the circuit breaker and the copper bars after the size of the ac busbar cabinet 403 is reduced is avoided.

Note that the above embodiments are for illustrative purposes only and are not meant to limit the present application.

In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims

1. An ac convergence cabinet, comprising:

A main breaker having a plurality of input terminals and a plurality of output terminals extending in a first direction to a wiring area of a lower portion of the ac bus cabinet;

2. The ac busbar of claim 1, wherein the breaker copper bars include a first breaker copper bar, a second breaker copper bar, and a third breaker copper bar;

3. The ac mains cabinet according to claim 2, wherein the second breaker copper bar has a connection portion extending in a first direction, a first bending portion extending in a second direction, a second bending portion extending in a third direction, the second breaker copper bar being connected with a sub-breaker in a second target breaker unit;

4. The ac mains cabinet according to claim 3, wherein the third breaker copper bar is connected with the sub-breaker in the third target breaker unit, a connection portion extending in the first direction, a first bent portion extending in the second direction, a second bent portion extending in the third direction, and a third bent portion extending in the fourth direction;

5. The ac busbar cabinet of claim 4, wherein the connection portion and the bending portion of the copper bar of the circuit breaker are fixedly connected, and the first target circuit breaker, the second target circuit breaker and the third target circuit breaker respectively form a plurality of rows of output connection points which are arranged in parallel and at intervals in a wiring area at the lower portion of the ac busbar cabinet.

6. The ac mains cabinet according to claim 4, further comprising an insulating sleeve sleeved in place of the non-fixed connection of the circuit breaker copper bars;

7. The ac mains cabinet of claim 1, further comprising a plurality of insulating mounts and a plurality of insulating posts;

8. The ac busbar cabinet of claim 1, wherein a wiring hole is formed in a side wall of the ac busbar cabinet, and an external cable is connected with the copper bar of the wiring area through the wiring hole;

9. The ac mains cabinet according to claim 2, further comprising a control cabinet circuit breaker;

10. The ac mains cabinet according to claim 1, further comprising a cooling air duct comprising:

11. The ac convergence cabinet of claim 10 wherein the air inlet of the air inlet duct is connected to an air outlet of an air-cooled air conditioner and the air outlet of the air outlet duct is connected to an air inlet of the air-cooled air conditioner.

12. The ac mains cabinet according to claim 10, wherein one air deflector group is formed at each opening position of the air inlet duct, each air deflector group including a plurality of air deflectors arranged at intervals.

13. The ac mains cabinet according to claim 10, wherein the length of the air deflector in each air deflector group is smaller as the air deflector is closer to the air inlet of the air inlet duct, and the length of the air deflector in the same position of the plurality of air deflector groups is smaller as the air deflector is closer to the air inlet of the air inlet duct, so that the air volume of the cold air led out from each opening of the air outlet duct is the same.

14. An energy storage container, comprising:

A control cabinet;

An air-cooled air conditioner;

The ac mains cabinet according to any one of claims 1 to 13.

15. The energy storage container of claim 14, wherein the air outlet of the air-cooled air conditioner is further connected to the air inlet of the control cabinet via a pipe, the air outlet duct further comprises a control cabinet air outlet duct, the control cabinet air outlet duct comprises a control cabinet air outlet, and the control cabinet air outlet is connected to the air inlet of the air-cooled air conditioner.