CN222301110U - Electric connection device of PCS and block terminal in energy storage cabinet - Google Patents
Electric connection device of PCS and block terminal in energy storage cabinet Download PDFInfo
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- CN222301110U CN222301110U CN202421060763.0U CN202421060763U CN222301110U CN 222301110 U CN222301110 U CN 222301110U CN 202421060763 U CN202421060763 U CN 202421060763U CN 222301110 U CN222301110 U CN 222301110U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
本实用新型属于储能柜技术领域,涉及一种储能柜内PCS与配电箱的电连接装置，包括：储能柜、配电箱、PSC、直流正极排、直流负极排、交流U排、交流V排、交流W排、交流N排，各导电铜排按照由里到外、由短到长的安装顺序依次导电连接配电箱与PSC的对应接线端子；本实用新型采用软铜排导电连接代替了大线径电缆在储能柜中配电箱与PSC前后狭小空间弯折布局走线的方式，使得安装维护人员能够轻松实现各接线端子之间的电流连通，降低了安装难度，提高了安装维护的效率，并且保证了各接线端子之间的电流连通更加安全可靠，节省安装时间，降低安装成本，降低安装不良率，提高PCS散热效果。
The utility model belongs to the technical field of energy storage cabinets, and relates to an electrical connection device between a PCS and a distribution box in an energy storage cabinet, comprising: an energy storage cabinet, a distribution box, a PSC, a DC positive pole row, a DC negative pole row, an AC U row, an AC V row, an AC W row, and an AC N row, wherein each conductive copper row is conductively connected to the corresponding wiring terminals of the distribution box and the PSC in sequence from inside to outside and from short to long; the utility model adopts a soft copper row conductive connection to replace the bending layout and routing of a large-diameter cable in the narrow space before and after the distribution box and the PSC in the energy storage cabinet, so that installation and maintenance personnel can easily realize the current connection between the wiring terminals, reduce the installation difficulty, improve the efficiency of installation and maintenance, and ensure that the current connection between the wiring terminals is safer and more reliable, save installation time, reduce installation costs, reduce the installation defect rate, and improve the heat dissipation effect of the PCS.
Description
Technical Field
The utility model belongs to the technical field of energy storage cabinets, and relates to an electric connection device of a PCS and a distribution box in an energy storage cabinet.
Background
The energy storage cabinet is a device specially designed for storing electric energy, has wide application fields, and plays an important role in power systems, renewable energy utilization, household standby power supply and specific industry application. The energy storage cabinet has important significance in improving the energy utilization efficiency, promoting the popularization of renewable energy sources and enhancing the flexibility and the reliability of a power system through high-efficiency energy storage and release capacity. The PCS tank in the tank is referred to as the "energy storage converter" (Power Conversion System), which is a key component in the electrochemical energy storage system. The PCS box is responsible for realizing the bidirectional conversion of electric energy, namely, can control the charging and discharging processes of the energy storage battery pack, and converts alternating current into direct current in the two directions. Specifically, the PCS box converts AC power from the grid or other power source to DC power for storage in the battery when the battery pack is to be charged, and converts DC power released by the battery back to AC power when the battery pack is discharged to power the grid or load. The PCS box ensures high-efficiency flow and control of electric energy, can directly supply power to an alternating current load under the condition of no power grid, and is a bridge for connecting a battery system and the power grid (or load). It generally contains a bi-directional converter, a control unit, a protection mechanism, and interfaces to communicate with a Battery Management System (BMS) and an Energy Management System (EMS) in order to implement intelligent management and optimize operation strategies. In modern energy storage systems, the technical performance of the PCS has an important impact on the efficiency, safety and economy of the overall system.
However, because the current-carrying capacity of the connecting cable between the PCS and the distribution box in the energy storage cabinet is large, the connecting cable generally has a wire diameter of 50 square or more. The large-wire-diameter cable is connected and routed in a cabinet with a small space, and has the defects that firstly, the bending radius is large, and the distance between 50 mm and 60mm is needed at the routing bending position because of the large wire diameter. And secondly, the installation difficulty in a narrow space is high, the installation is affected by the bending radius, the installation is performed in the narrow cabinet space, the blockage is caused by the yield stress of the cable, the installation difficulty is high, and the efficiency is low. Again, material is wasted-in the case of a need for turning, a longer length than the actual distance needs to be used due to the large radius of the bend. And meanwhile, the PCS air outlet temperature is higher, the cable insulating cover is directly blown by hot air for a long time, so that the safety service life of the cable is influenced, and the cable has potential safety hazards after long-term use.
Therefore, there is a need for an electrical connection device for a PCS and a distribution box that is convenient to install, maintain and operate, and safe and reliable for long-term use, so as to solve the above technical problems.
Disclosure of utility model
The technical scheme includes that the electric connection device for PCS and the distribution box in the energy storage cabinet comprises an energy storage cabinet, a distribution box and PSC, wherein the distribution box and the PSC are respectively arranged in the energy storage cabinet, a direct current positive electrode row, a direct current negative electrode row, an alternating current U row, an alternating current V row, an alternating current W row and an alternating current N row are also arranged in the energy storage cabinet, the direct current positive electrode row, the direct current negative electrode row, the alternating current U row, the alternating current V row, the alternating current W row and the alternating current N row are all long-strip-shaped conductive copper bars with rectangular cross sections, and the current flux of the conductive copper bars is larger than the maximum rated current value of corresponding wiring terminals;
The direct current positive electrode row, the direct current negative electrode row, the alternating current U row, the alternating current V row, the alternating current W row and the alternating current N row are sequentially and electrically connected with corresponding wiring terminals of the distribution box and the PSC from inside to outside and from short to long according to the installation sequence, wherein the installation sequence of the conductive connection comprises the alternating current N row, the alternating current W row, the alternating current V row, the alternating current U row, the direct current negative electrode row and the direct current positive electrode row which are sequentially and electrically connected;
And the support isolation frames are used for supporting and fixing the direct current positive electrode row, the direct current negative electrode row, the alternating current U row, the alternating current V row, the alternating current W row and the alternating current N row and electrically insulating and isolating each other.
Preferably, the direct current positive electrode row, the direct current negative electrode row, the alternating current U row, the alternating current V row, the alternating current W row and the alternating current N row are all soft copper rows.
Preferably, the two ends of the direct current positive electrode row, the direct current negative electrode row, the alternating current U row, the alternating current V row, the alternating current W row and the alternating current N row are respectively provided with mounting holes, and the direct current positive electrode row, the direct current negative electrode row, the alternating current U row, the alternating current V row, the alternating current W row and the alternating current N row are respectively connected to the corresponding wiring terminals of the distribution box and the PSC through the mounting holes at the two ends by bolts to form respective current paths.
More preferably, the direct current positive electrode row, the direct current negative electrode row, the alternating current U row, the alternating current V row, the alternating current W row and the alternating current N row are divided into three layers from inside to outside, the innermost layer is the alternating current N row and the alternating current W row, the middle layer is the alternating current V row and the alternating current U row, the outermost layer is the direct current negative electrode row and the direct current positive electrode row, the alternating current N row is upwards bent and then is positioned on the upper row of the innermost layer, the alternating current W row is downwards bent and then is positioned on the lower row of the middle layer, the alternating current V row is upwards bent and then is positioned on the upper row of the outermost layer, and the direct current positive electrode row is downwards bent and then is positioned on the lower row of the outermost layer.
Preferably, the distribution box is adjacent to the PSC from left to right and is positioned on the same layer of the energy storage cabinet.
More preferably, the distribution box and the PSC are positioned at the bottommost layer of the energy storage cabinet.
Preferably, the top of the energy storage cabinet is provided with a hanging ring, and the bottom of the energy storage cabinet is provided with a bottom frame.
Preferably, the outer layers of the direct current positive electrode row, the direct current negative electrode row, the alternating current U row, the alternating current V row, the alternating current W row and the alternating current N row are respectively wrapped with insulating sleeves.
The beneficial effects of the utility model are as follows:
1. the utility model adopts the flexible copper bar conductive connection to replace a mode of bending and laying wires in a small space before and after a distribution box and a PSC in an energy storage cabinet, so that installation and maintenance personnel can easily realize current communication between the wiring terminals, the installation difficulty is reduced, the installation and maintenance efficiency is improved, and the current communication between the wiring terminals is ensured to be safer and more reliable, therefore, the utility model saves the installation time, reduces the installation cost, reduces the installation reject ratio and improves the PCS heat dissipation effect.
2. According to the utility model, the soft copper bars are adopted to conduct connection through the wiring terminals according to the sequence of firstly arranging the inner copper bars and then arranging the outer copper bars, firstly conducting the copper bars at a short distance and then conducting the copper bars at a long distance, so that the cross and interference among the copper bars are avoided, the reasonable distance and position relation among the copper bars are ensured, the circuit connection is safer and more reliable, and meanwhile, the copper bars which are orderly distributed enable the maintainability of the energy storage cabinet to be better.
Drawings
FIG. 1 is a schematic diagram of copper bar connection assembly of an electrical connection device for PCS and a distribution box in an energy storage cabinet;
FIG. 2 is a partial schematic view of the installation of the energy storage cabinet;
FIG. 3 is a schematic diagram of an energy storage cabinet installation complete machine;
FIG. 4 is a schematic top view of copper bar connection assembly;
Fig. 5 is a schematic diagram of copper bar connection.
The energy storage device comprises an energy storage cabinet 1, an energy storage cabinet 2, a distribution box 3, PSC, 4, a direct current positive electrode row, 5, a direct current negative electrode row, 6, an alternating current U row, 7, an alternating current V row, 8, an alternating current W row, 9, an alternating current N row, 10, a supporting isolation frame, 11, hanging rings, 12 and a bottom frame.
Detailed Description
The following description of the related art will be made apparent to, and is not intended to limit the scope of, the embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in figures 1-5, the electric connection device of PCS and a power distribution box in an energy storage cabinet comprises an energy storage cabinet 1, a power distribution box 2 and a PSC3, wherein the power distribution box 2 and the PSC3 are respectively arranged in the energy storage cabinet 1, a direct current positive electrode row 4, a direct current negative electrode row 5, an alternating current U row 6, an alternating current V row 7, an alternating current W row 8 and an alternating current N row 9 are arranged in the energy storage cabinet 1, the direct current positive electrode row 4, the direct current negative electrode row 5, the alternating current U row 6, the alternating current V row 7, the alternating current W row 8 and the alternating current N row 9 are all strip-shaped conductive copper bars with rectangular cross sections, the current flux of the conductive copper bars is larger than the maximum rated current value of corresponding wiring terminals, and a small space before and after the power distribution box 2 and the PSC3 of the power distribution cabinet 1 is bent in advance according to the spacing and the position of the wiring terminals, so that installation maintenance personnel can easily realize current communication between the wiring terminals, installation difficulty is reduced, installation maintenance efficiency is improved, and the current communication between the wiring terminals is ensured to be safer and more reliable;
The direct current positive electrode row 4, the direct current negative electrode row 5, the alternating current U row 6, the alternating current V row 7, the alternating current W row 8 and the alternating current N row 9 are sequentially connected with corresponding wiring terminals of the distribution box 2 and the PSC 3 in a conductive connection mode according to the installation sequence from inside to outside and from short to long, the conductive connection mode comprises the steps of sequentially and electrically connecting the alternating current N row 9, the alternating current W row 8, the alternating current V row 7, the alternating current U row 6, the direct current negative electrode row 5 and the direct current positive electrode row 4, and the wiring terminals are communicated according to the sequence of firstly arranging the short-distance conductive copper rows and then the long-distance conductive copper rows from inside to outside, so that the cross and interference among the conductive copper rows are avoided, reasonable spacing and position relation among the conductive copper rows are ensured, and the circuit connection is safer and more reliable. Meanwhile, the conductive copper bars which are orderly distributed enable the maintainability of the energy storage cabinet 1 to be better;
The support isolation frame 10 made of epoxy glass fiber boards is arranged among the direct current positive electrode row 4, the direct current negative electrode row 5, the alternating current U row 6, the alternating current V row 7, the alternating current W row 8 and the alternating current N row 9, the support isolation frame 10 supports, fixes and electrically isolates the direct current positive electrode row 4, the direct current negative electrode row 5, the alternating current U row 6, the alternating current V row 7, the alternating current W row 8 and the alternating current N row 9 from each other, and the support isolation frame 10 is used for supporting, fixing and insulating the conductive copper rows to prevent the conductive copper rows among different wiring terminals from being short-circuited.
Further, the direct current positive electrode row 4, the direct current negative electrode row 5, the alternating current U row 6, the alternating current V row 7, the alternating current W row 8 and the alternating current N row 9 are all soft copper rows, the soft copper rows are mainly formed by overlapping multiple layers Bao Tongbo and through welding, the middle part of each soft copper row is kept in a scattered copper sheet state, the soft copper rows have excellent electric conduction performance and rapid heat dissipation capability, meanwhile, good flexibility and installation convenience are achieved, the soft copper rows are used on the wiring terminals of the distribution box 2 and the PSC 3 to ensure efficient and safe electric conduction connection inside the energy storage cabinet 1, and the soft copper rows are kept flexible and meanwhile ensure stability and safety of electric connection between the distribution box 2 and the PSC 3.
Furthermore, the two ends of the direct current positive electrode row 4, the direct current negative electrode row 5, the alternating current U row 6, the alternating current V row 7, the alternating current W row 8 and the alternating current N row 9 are respectively provided with mounting holes, the direct current positive electrode row 4, the direct current negative electrode row 5, the alternating current U row 6, the alternating current V row 7, the alternating current W row 8 and the alternating current N row 9 are respectively connected to corresponding wiring terminals of the distribution box 2 and the PSC 3 through the mounting holes at the two ends by bolts to form respective current paths, and the electric connection between the two ends of the conductive copper row and the wiring terminals is firmer and more reliable by the bolt connection or the threaded connection.
Further, the direct current positive electrode row 4, the direct current negative electrode row 5, the alternating current U row 6, the alternating current V row 7, the alternating current W row 8 and the alternating current N row 9 are divided into three layers from inside to outside, the innermost layer is the alternating current N row 9 and the alternating current W row 8, the middle layer is the alternating current V row 7 and the alternating current U row 6, the outermost layer is the direct current negative electrode row 5 and the direct current positive electrode row 4, the alternating current N row 9 is bent upwards and then is positioned on the upper row of the innermost layer, the alternating current W row 8 is bent downwards and then is positioned on the lower row of the innermost layer, the alternating current V row 7 is bent upwards and then is positioned on the upper row of the outermost layer, the direct current negative electrode row 5 is bent downwards and then is positioned on the lower row of the outermost layer, the space distribution of multiple rows and multiple layers is fully utilized, so that the conductive copper rows are uniformly dispersed, namely the safe spacing between the conductive copper rows is ensured, and the space between the distribution box 2 and the PSC 3 can be fully utilized.
Furthermore, the distribution box 2 is adjacent to the PSC 3 in the left-right direction and is positioned on the same layer of the energy storage cabinet 1, and the adjacent layout of the same layer can reduce the length of the conductive copper bars as much as possible, so that the wiring is more convenient, and the routing path is shorter.
Further, the distribution box 2 and the PSC 3 are located at the bottom of the energy storage cabinet 1.
Further, a hanging ring 11 is arranged at the top of the energy storage cabinet 1, and a bottom frame 12 is arranged at the bottom of the energy storage cabinet 1.
Further, the outer layers of the direct current positive electrode row 4, the direct current negative electrode row 5, the alternating current U row 6, the alternating current V row 7, the alternating current W row 8 and the alternating current N row 9 are respectively wrapped with insulating sleeves, and the insulating sleeves are arranged outside the conductive copper rows, so that the insulativity between the conductive copper rows can be enhanced, and the installation, the operation and the maintenance are safer.
In summary, the utility model adopts the flexible copper bar conductive connection to replace the mode of bending and laying wires in the small space between the distribution box and the PSC in the energy storage cabinet, so that installation and maintenance personnel can easily realize the current communication between the wiring terminals, the installation difficulty is reduced, the installation and maintenance efficiency is improved, the current communication between the wiring terminals is ensured to be safer and more reliable, the installation time is saved, the installation cost is reduced, the installation failure rate is reduced, and the PCS heat dissipation effect is improved, thereby having wide application prospect.
It should be emphasized that the above-mentioned embodiments are merely preferred embodiments of the present utility model, and not intended to limit the present utility model in any way, and any simple modification, equivalent variation and modification made to the above-mentioned embodiments according to the technical principles of the present utility model still fall within the scope of the technical solutions of the present utility model.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421060763.0U CN222301110U (en) | 2024-05-15 | 2024-05-15 | Electric connection device of PCS and block terminal in energy storage cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421060763.0U CN222301110U (en) | 2024-05-15 | 2024-05-15 | Electric connection device of PCS and block terminal in energy storage cabinet |
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| CN222301110U true CN222301110U (en) | 2025-01-03 |
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| CN202421060763.0U Active CN222301110U (en) | 2024-05-15 | 2024-05-15 | Electric connection device of PCS and block terminal in energy storage cabinet |
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| CN (1) | CN222301110U (en) |
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