Distribution box and energy storage equipment

Abstract

The utility model relates to the technical field of new energy, in particular to a power distribution box and energy storage equipment, which comprise a box body, a controller, a connecting assembly, an insulating assembly and a protection assembly, a mounting plate is arranged in the box body, and the controller, the protection assembly and the insulation assembly are fixedly arranged on the mounting plate; an input interface and an output interface are arranged on the two sides of the box body respectively, the input interface can be electrically connected with the input end of the protection assembly through the connecting assembly, and the output end of the protection assembly can be electrically connected with the output interface through the connecting assembly; the connecting assembly comprises a plurality of copper bars, and insulating assemblies are connected between the plurality of copper bars and the mounting plate in an abutting mode. The high-voltage distribution box disclosed by the utility model is not only compact in structure and high in integration level, but also has very high insulativity.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy, and in particular to a distribution box and energy storage equipment. Background Art

[0002] In recent years, with the continuous advancement of new energy technologies, new energy storage systems have made great progress. Energy storage technology plays an increasingly important role in the fields of renewable energy power generation and grid operation. When operating in a high-power energy storage environment, the voltage and current are high, which poses huge challenges to the design of high-voltage distribution systems and the selection of high-voltage components. The high-voltage power supply directly enters the high-voltage distribution box and is distributed to electrical products according to system needs. This places high demands on how to ensure the safety and integration of the entire high-voltage system and its various electrical equipment.

[0003] CN218569840U discloses a distribution box and energy storage system, which includes: a shell, a high-voltage control unit and a micro-control unit; the shell is provided with multiple high-voltage interfaces and multiple communication interfaces; the high-voltage control unit and the micro-control unit are both located in the shell, and the high-voltage control unit is electrically connected to the multiple high-voltage interfaces, and the micro-control unit is communicatively connected to the multiple communication interfaces.

[0004] In the existing technology, with the continuous development and improvement of new energy technologies, the number of high-voltage electrical devices used in energy storage systems is increasing. It is required that power batteries can safely power multiple electrical appliances at the same time. To achieve this function, it is necessary to connect multiple high-voltage cables in parallel on the high-voltage busbar, and design fuse protection circuits and DC relays in the loop to realize the control function. In the existing technology, due to the large size and large number of high-voltage relays themselves, a large amount of layout space will be occupied. The control relays will also use a large number of low-voltage wiring harnesses. The integration and insulation of the distribution equipment are not high, the performance of the energy storage product will be reduced, and the safety during use is difficult to ensure. Utility Model Content

[0005] After long-term practice, it was found that the integration and insulation of the distribution equipment in the energy storage system were not high, which led to the decline in the performance of the energy storage products and made it difficult to ensure safety during use.

[0006] In view of this, the present invention aims to provide a distribution box and an energy storage device to at least solve the above technical problems existing in the prior art.

[0007] In one aspect, the present invention provides a power distribution box, comprising a box body, and a controller, a connection assembly, an insulation assembly, and a protection assembly fixedly arranged inside the box body;

[0008] A mounting plate is provided in the box body, and the controller, the protection component and the insulation component are fixedly provided on the mounting plate;

[0009] An input interface and an output interface are respectively provided on both sides of the box body, the input interface can be electrically connected to the input end of the protection component through the connecting component, and the output end of the protection component can be electrically connected to the output interface through the connecting component;

[0010] The connecting assembly includes a plurality of copper bars, and the insulating assemblies are respectively abutted between the plurality of copper bars and the mounting plate.

[0011] In one embodiment, the input interface includes a positive input interface and a negative input interface, the output interface includes a positive output interface and a negative output interface, the positive output interface includes at least two positive shunt interfaces, and the negative output interface includes at least two negative shunt interfaces.

[0012] In one embodiment, the protection component includes a relay and a fuse, the relay includes a positive relay, the input end of the positive relay is electrically connected to the positive input interface through the copper bar, the output end of the positive relay is electrically connected to the input end of the fuse through the copper bar, and the output end of the fuse is electrically connected to the positive output interface.

[0013] In one embodiment, the positive relay is further electrically connected to the controller, and the controller is capable of controlling the input and output of the power supply.

[0014] In one embodiment, the relay further includes a negative relay, the input end of the negative relay is electrically connected to the negative input interface through the copper bus, the output end of the negative relay is provided with a shunt, and the output end of the shunt is electrically connected to the negative output interface through the copper bus.

[0015] In one embodiment, the box body includes a base, an interface plate, a ventilation plate, and an upper cover; the base, the interface mounting plate, the ventilation plate, and the upper cover are detachably connected by screws, and the interface plate includes an input interface plate and an output interface plate, each of which is provided with an interface card hole;

[0016] In one embodiment, the output interface board is further provided with at least two connection terminals, and the connection terminals are electrically connected to the controller.

[0017] In one embodiment, a plurality of ventilation holes are provided on the ventilation plate.

[0018] In one embodiment, a mounting hole is provided on the base for installing the high-voltage distribution box.

[0019] On the other hand, the present invention provides an energy storage device, which includes the distribution box.

[0020] The utility model discloses a distribution box, which consists of a box body and a controller, a connecting assembly, an insulating assembly and a protective assembly fixedly arranged inside the box body. The controller is used to control the input and output of the power supply and improve the controllability of the distribution system. In order to improve the stability of the installation of parts inside the distribution box, a mounting plate is provided in the box body, and the controller, the protective assembly and the insulating assembly are fixedly arranged on the mounting plate. In order to reduce the structural redundancy of the distribution box and improve the integration of the distribution box, an input interface and an output interface are respectively provided on both sides of the box body. The input interface can be electrically connected to the input end of the protective assembly through the connecting assembly. The protective assembly can control the on and off of the circuit to play a role of automatic adjustment and safety protection. The output end of the protective assembly can be electrically connected to the output interface through the connecting assembly. The connecting assembly includes a plurality of copper bars. Insulating assemblies are respectively abutted between the plurality of copper bars and the mounting plate. The insulating assembly can not only be used to insulate the external box body, but also support the copper bars to prevent the copper bars from breaking due to vibration.

[0021] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 This is an overall schematic diagram of a distribution box in one embodiment of the utility model;

[0024] Figure 2 This is an exploded schematic diagram of a distribution box according to one embodiment of the present invention;

[0025] Figure 3 This is a side view of a distribution box according to one embodiment of the present invention.

[0026] Description of reference numerals:

[0027] 1. Box; 12. Mounting plate; 13. Input interface; 131. Positive input interface; 132. Negative output interface; 14. Output interface; 141. Positive output interface; 142. Negative output interface; 15. Base; 16. Interface board; 161. Input interface board; 162. Output interface board; 1621: Terminal blocks; 17. Ventilation plate; 171. Ventilation holes; 18. Top cover; 2. Controller; 3. Connector assembly; 31. Copper strip; 4. Insulation assembly; 5. Protection assembly; 51. Relay; 511. Positive relay; 512. Negative relay; 52. Fuse; 6. Shunt DETAILED DESCRIPTION

[0028] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0029] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate for the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices; "fixed" or "fixed connection" generally refers to common mechanical connection methods, such as threaded connection, welding or bonding.

[0031] In the prior art, with the continuous development and improvement of new energy technologies, the number of high-voltage electrical devices used in energy storage systems is increasing. This requires that power batteries be able to safely power multiple electrical appliances simultaneously. To achieve this function, it is necessary to connect multiple high-voltage cables in parallel on the high-voltage busbar and design fuse protection circuits and DC relays 51 in the loop to implement the control function. In the prior art, due to the large size and large number of high-voltage relays 51 themselves, a large amount of layout space is occupied. The control relays 51 also use a large number of low-voltage wiring harnesses, and the integration and insulation of the distribution equipment are not high. This will reduce the performance of the energy storage product and make it difficult to ensure safety during use. The present invention provides a high-voltage distribution box to at least solve the above technical problems existing in the prior art.

[0032] Figure 1 This is an overall schematic diagram of a distribution box according to one embodiment of the present invention; Figure 2 This is an exploded schematic diagram of a distribution box according to one embodiment of the present invention; Figure 3 This is a side view of a distribution box according to one embodiment of the present invention.

[0033] like Figure 1-3 As shown, the distribution box consists of a box body 1 and a controller 2, a connecting component 3, an insulating component 4 and a protective component 5 fixedly arranged inside the box body 1. The controller 2 is used to control the input and output of the power supply and improve the controllability of the distribution system. In order to improve the stability of the installation of parts inside the distribution box, a mounting plate 12 is provided in the box body 1, and the controller 2, the protective component 5 and the insulating component 4 are fixedly arranged on the mounting plate 12. In order to reduce the structural redundancy of the distribution box and improve the integration of the distribution box, interface components are respectively provided on both sides of the box body 1. The interface components include an input interface 13 and an output interface 14. The input interface 13 is electrically connected to the input end of the protective component 5 through the connecting component 3. The protective component 5 can control the on and off of the circuit and play a role of automatic adjustment and safety protection. The output end of the protective component 5 is electrically connected to the output interface 14 through the connecting component 3. The connecting component 3 includes multiple copper bars 31. The multiple copper bars 31 are respectively abutted against the mounting plate 12 by insulating components 4. The insulating component 4 can not only be used to insulate the external box body 1, but also support the copper bars 31 to prevent the copper bars 31 from breaking due to vibration.

[0034] In the embodiment of the present disclosure, in order to protect the electrical components in the distribution box and shield external electromagnetic interference, the material of the box body 1 can be a sheet metal part, and the box body 1 is set to a rectangular parallelepiped, wherein the box body 1 is also provided with a controller 2, a connection component 3, an insulation component 4 and a protection component 5. In order to facilitate the installation of the electrical components, a mounting plate 12 is provided in the box body 1, and the controller 2, the protection component 5 and the insulation component 4 are fixedly provided on the mounting plate 12. In order to improve the integration of the electrical components in the distribution box and save the accommodation space, an input interface 13 and an output interface 14 are respectively provided on both sides of the box body 1. The input interface 13 is connected to the protection component 5 through the connection component 3. The input end of the protection component 5 is electrically connected to the output interface 14 through the connecting component 3. Specifically, in order to reduce the structural redundancy of the distribution box and improve the integration of the distribution box, the input interface 13, the protection component 5 and the output interface 14 can be fixedly mounted on the mounting plate 12 in an inverted "L" structure through the connecting component 3; wherein, in order to enhance the conductivity, the connecting component 3 includes a plurality of copper bars 31. In order to insulate the copper bars 31 from the external box body 1 and to support the copper bars 31 to prevent the copper bars 31 from breaking due to vibration, the plurality of copper bars 31 and the mounting plate 12 are respectively abutted with insulating components 4. Specifically, the insulating component 4 can be set to a cylindrical shape.

[0035] In order to distribute high voltage current to different electrical appliances, such as Figure 1 and 3As shown, in a specific embodiment, the input interface 13 includes a positive input interface 131 and a negative input interface 132, the output interface 14 includes a positive output interface 141 and a negative output interface 142, the positive output interface 141 includes at least two or more positive shunt interfaces, and the negative output interface 142 includes at least two or more negative shunt interfaces. Specifically, the input interface 13 is used to connect to an external power supply, and the output interface 14 is used to connect to an electrical appliance. Multiple shunt interfaces can realize charging of different electrical appliances at the same time.

[0036] In order to achieve automatic circuit adjustment, voltage conversion and safety protection, and prevent the distribution circuit from being paralyzed due to excessive voltage or current during the power distribution process, in a specific embodiment, the protection component 5 includes a relay 51 and a fuse 52, the relay 51 includes a positive relay 511, the input end of the positive relay 511 is electrically connected to the positive input interface 131 through the copper bar 31, the output end of the positive relay 511 is electrically connected to the input end of the fuse 52 through the copper bar 31, and the output end of the fuse 52 is electrically connected to the positive output interface 141.

[0037] In order to further protect the circuit, the positive relay 511 is also electrically connected to the controller 2, which can control the input and output of the power supply. Specifically, the controller 2 is provided with an integrated circuit, which can realize the detection circuit and the protection circuit.

[0038] In one embodiment, the relay 51 also includes a negative relay 512, the input end of the negative relay 512 is electrically connected to the negative input interface 132 through the copper bar 31, and the output end of the negative relay 512 is provided with a shunt 6, and the output end of the shunt 6 is electrically connected to the negative output interface 142 through the copper bar.

[0039] To facilitate maintenance, in one embodiment, the box body 1 includes a base 15, an interface plate 16, a ventilation plate 17 and an upper cover plate 18; the base 15, the interface mounting plate 12, the ventilation plate 17 and the upper cover plate 18 are detachably connected by screws, and the interface plate 16 includes an input interface plate 161 and an output interface plate 162, and the input interface plate 161 and the output interface plate 162 are respectively provided with interface card holes. Specifically, the input interface plate 161 and the output interface plate 162 are arranged on adjacent sides of the box body 1. In order to better achieve the heat dissipation effect, at least two ventilation plates 17 can be provided. The input interface plate 161, the output interface plate 162 and the two ventilation plates 17 are surrounded to form the four sides of the box body 1. The upper cover plate 18 is a sealing plate covering the top of the box body 1 to prevent foreign garbage from entering the distribution box.

[0040] In order to charge the controller 2 without disassembling the high-voltage box, at least two wiring terminals 1621 are also provided on the output interface board 162. The wiring terminals 1621 are electrically connected to the controller 2. Specifically, one end of the wiring terminal facing the inside of the distribution box is electrically connected to the controller 2, and the end facing outside the distribution box is used to connect to an external power supply.

[0041] In order to reduce the temperature inside the distribution box during operation, in a specific embodiment, a plurality of ventilation holes 171 are provided on the ventilation plate 17 .

[0042] In order to facilitate the disassembly and assembly of the distribution box, a mounting hole is provided on the base 15 for installing the high-voltage distribution box.

[0043] On the other hand, the present invention provides an energy storage device, which includes at least the high-voltage distribution box as described in any one of the above items.

[0044] It should be noted that for the aforementioned method embodiments, for simplicity of description, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present invention is not limited by the order of the actions described, because according to the present invention, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required for the present invention.

[0045] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0046] In the several embodiments provided by the present invention, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0047] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0048] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0049] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A distribution box, characterized in that: It comprises a box body (1), a controller (2), a connection component (3), an insulation component (4), and a protection component (5) fixedly arranged inside the box body (1); A mounting plate (12) is provided in the box body (1), and the controller (2), the protection component (5) and the insulation component (4) are fixedly provided on the mounting plate (12); An input interface (13) and an output interface (14) are respectively provided on both sides of the box body (1); the input interface (13) can be electrically connected to the input end of the protection component (5) through the connection component (3); and the output end of the protection component (5) can be electrically connected to the output interface (14) through the connection component (3); The connection assembly (3) comprises a plurality of copper bars (31), and the insulating assembly (4) is respectively abutted between the plurality of copper bars (31) and the mounting plate (12).

2. The distribution box according to claim 1, characterized in that: The input interface (13) includes a positive input interface (131) and a negative input interface (132); the output interface (14) includes a positive output interface (141) and a negative output interface (142); the positive output interface (141) includes at least two positive shunt interfaces, and the negative output interface (142) includes at least two negative shunt interfaces.

3. The distribution box according to claim 2, characterized in that: The protection component (5) includes a relay (51) and a fuse (52), and the relay (51) includes a positive relay (511); The input end of the positive relay (511) is electrically connected to the positive input interface (131) through the copper strip (31), the output end of the positive relay (511) is electrically connected to the input end of the fuse (52) through the copper strip (31), and the output end of the fuse (52) is electrically connected to the positive output interface (141).

4. The distribution box according to claim 3, characterized in that: The positive relay (511) is also electrically connected to the controller (2), and the controller (2) is capable of controlling the input and output of the power supply.

5. The distribution box according to claim 3, characterized in that: The relay (51) further includes a negative relay (512); The input end of the negative relay (512) is electrically connected to the negative input interface (132) via the copper bar (31), the output end of the negative relay (512) is provided with a shunt (6), and the output end of the shunt (6) is electrically connected to the negative output interface (142) via the copper bar (31).

6. The distribution box according to claim 1, characterized in that: The box body (1) comprises a base (15), an interface plate (16), a ventilation plate (17) and an upper cover plate (18); the base (15), the interface mounting plate (12), the ventilation plate (17) and the upper cover plate (18) are detachably connected by screws; The interface board (16) comprises an input interface board (161) and an output interface board (162), and the input interface board (161) and the output interface board (162) are respectively provided with interface card connection holes.

7. The distribution box according to claim 6, characterized in that: At least two connection terminals (1621) are also provided on the output interface board (162), and the connection terminals (1621) are electrically connected to the controller (2).

8. The distribution box according to claim 6, characterized in that: The ventilation plate (17) is provided with ventilation holes (171).

9. The distribution box according to claim 6, characterized in that: The base (15) is provided with a mounting hole for mounting the distribution box.

10. An energy storage device, characterized in that: The energy storage device comprises at least the distribution box according to any one of claims 1 to 9.

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