Energy storage sub-module test tool

Abstract

The invention relates to an energy storage sub-module test tool, which comprises an assembly main body, a communication module and an on-off module, an accommodating space is arranged in the assembly main body, the communication module and the on-off module are both arranged in the accommodating space, and the communication module and the on-off module are in communication connection. The on-off module is used for collecting the voltage of the energy storage sub-module and detecting the on-off state of the energy storage sub-module, the communication module is used for detecting the communication state of the energy storage sub-module, the communication module is connected with the top wall, and the on-off module is connected with one of the side walls. Under the condition of ensuring the installation strength, the space distance in the assembly main body is fully utilized, and the electrical insulation between the on-off module and the communication module is ensured, so that the overall structural design is reasonable, the insulation design is reasonable, the on-off module and the communication module can collect and process various signals, and the communication efficiency is improved. Therefore, various test requirements of the high-voltage directly-hung energy storage sub-module are met.

Description

Technical Field

[0001] This application relates to the technical field of energy storage, and particularly to a test tool for energy storage sub-modules. Background Art

[0002] With the development of smart grids, energy storage technology has become an important part of its development process. Among various energy storage technologies, compared with the energy storage method of traditional configuration step-up transformers, high-voltage direct connection energy storage has advantages such as high safety, high efficiency, strong compatibility, and high cost performance. It can play a role in peak shaving and frequency modulation in the power system transmission and distribution, provide backup power for the power grid, improve the recovery ability of the power grid after a fault, and ensure the power supply reliability of important loads.

[0003] The high-voltage direct connection energy storage valve tower includes multiple sub-modules (including but not limited to power modules), busbar cabinets, battery cabinets, etc., and adopts a connection method of series connection of sub-modules and parallel connection of battery cabinets. In related technologies, the structural layout of the test tool that can simultaneously detect the on / off state of energy storage sub-modules and the communication states of power modules, busbar cabinets, and electric cabinets in the sub-modules is unreasonable, and the detection effect is poor. Summary of the Invention

[0004] Based on this, it is necessary to provide a test tool for energy storage sub-modules, and a portable test tool structure for energy storage sub-modules is proposed. The overall structure design is reasonable and the insulation design is reasonable, realizing various test requirements of the high-voltage direct connection energy storage valve tower.

[0005] This application provides an energy storage sub-module, including an assembly main body with an accommodation space inside; a communication module and an on / off module. Both the communication module and the on / off module are arranged in the accommodation space, and the communication module and the on / off module are communicatively connected. The on / off module is used to collect the voltage of the energy storage sub-module and detect the on / off state of the energy storage sub-module, and the communication module is used to detect the communication state of the energy storage sub-module; wherein, the assembly main body has a top wall, a bottom wall, and a plurality of side walls connecting the top wall and the bottom wall. The communication module is connected to the top wall, and the on / off module is connected to one of the side walls.

[0006] In the technical solution of the embodiment of this application, by placing the communication module at the top and the on / off module on the side, the internal space of the assembly main body can be fully utilized. By arranging the communication module and the on / off module at different positions of the assembly main body, while using the spatial distance of the assembly main body itself, the electrical insulation between the on / off module and the communication module can be ensured. Thus, while the overall layout of the test tool is uniform, the insulation design is reasonable, and the on / off module and the communication module can collect and process various signals, thereby realizing various test requirements of the high-voltage direct connection energy storage sub-module.

[0007] In some embodiments, in the direction opposite to the top wall and the bottom wall, the communication module and the on / off module are arranged in a staggered manner.

[0008] In the technical solution of the embodiment of the present application, the communication module and the on-off module are further kept at a reliable insulation distance.

[0009] In some embodiments, the energy storage sub-module test tooling further includes a DC power supply disposed in the accommodation space, and the DC power supply is used to apply voltage to the energy storage sub-module, and the DC power supply is connected to the bottom wall.

[0010] In the technical solution of the embodiment of the present application, since the DC power supply is connected to the bottom wall, it can be separated from the communication module connected to the top wall and the on-off module connected to the side wall, thereby reducing the influence of the relatively high voltage generated by the DC power supply on the communication module and the on-off module.

[0011] In some embodiments, the energy storage sub-module test tooling further includes a first switching power supply and a second switching power supply disposed in the accommodation space; the first switching power supply is electrically connected to the on-off module, and the second switching power supply is electrically connected to the communication module; the first switching power supply is connected to the top wall and is arranged at intervals along the length direction of the top wall with the communication module; the second switching power supply is connected to the bottom wall and is arranged at intervals along the length direction of the bottom wall with the DC power supply.

[0012] In the technical solution of the embodiment of the present application, a relatively large space will be formed among the first switching power supply, the communication module, the on-off module 30, the second switching power supply and the DC power supply. This space can accommodate the wiring to the greatest extent, making the wiring simpler, thus facilitating wiring and avoiding winding. In addition, a certain electrical distance will also be maintained among the first switching power supply, the communication module, the on-off module, the second switching power supply and the DC power supply, reducing mutual interference.

[0013] In some embodiments, the energy storage sub-module test tooling further includes an optical-electric converter disposed in the accommodation space, and the optical-electric converter is electrically connected to the second switching power supply; the optical-electric converter is connected to the top wall and is arranged at intervals along the length direction of the top wall with the first switching power supply and the communication module.

[0014] In the technical solution of the embodiment of the present application, by connecting the optical-electric conversion switch to the top wall and electrically connecting it to the second switching power supply connected to the bottom wall, the connection line between the optical-electric conversion switch and the power supply can be simplified. And since it is arranged at intervals with the first switching power supply and the communication module, it can avoid crossing the connection line between the first switching power supply and the on-off module and the connection line between the communication module and the second switching power supply, reducing the winding situation.

[0015] In some embodiments, the energy storage sub-module test tooling further includes a network switch disposed in the accommodation space, and the network switch is electrically connected to the communication module; the network switch is disposed on the bottom wall and is arranged along the length direction of the bottom wall between the DC power supply and the second switching power supply.

[0016] In the technical solution of the embodiment of the present application, by arranging the network switch between the DC power supply and the second switching power supply, the DC power supply and the second switching power supply can be separated, thereby avoiding interference between the power supplies.

[0017] In some embodiments, the assembly body further includes a blocking member. The side wall has a through hole communicating with the on-off module, and the blocking member can cover the through hole.

[0018] In the technical solution of the embodiment of the present application, the optical fiber can pass through the through hole to be plugged and unplugged with the on-off module. Thus, without disassembling other structures of the assembly body, only by disassembling the blocking member can the optical fiber on the on-off module be plugged and unplugged, which is convenient for connecting with the energy storage sub-module in actual engineering.

[0019] In some embodiments, the communication module includes a frame assembly, a CPU board and a communication board. The CPU board and the communication board are arranged at intervals in the frame assembly and connected to the frame assembly. Among them, the frame assembly is semi-open.

[0020] In the technical solution of the embodiment of the present application, the assembly body forms an overall closed structure, performing electromagnetic shielding between the outside and the communication module. And, the frame assembly is semi-open, which can form a certain electromagnetic shielding protection for the internal CPU board and communication board, and at the same time, it can also facilitate users to observe the internal wiring situation.

[0021] In some embodiments, the frame assembly includes a top plate and a bottom plate arranged opposite to each other, and a rear plate and a front plate arranged between the top plate and the bottom plate. The rear plate and the front plate are arranged opposite to each other, and at least part of the front projection of the rear plate facing the front plate falls outside the front plate. The rear plate, the CPU board and the communication board are arranged at intervals. The frame assembly has an opening on one side of the front plate, and the opening faces the first side wall.

[0022] In the technical solution of the embodiment of the present application, the rear plate encloses from the rear of the CPU board and the communication board, and the front plate encloses from the front of the CPU board and the communication board.

[0023] After actually installing the communication module into the accommodating space, the formed opening faces the first side wall. At this time, only by removing the first side wall can the inside of the communication module be seen from the outside through the opening, thereby further improving the electromagnetic shielding effect.

[0024] In some embodiments, the communication module includes a CPU fixing baffle, a communication fixing baffle and a side plate. The side plate is arranged between the top plate and the bottom plate and intersects with the rear plate; both the CPU fixing baffle and the communication fixing baffle are arranged between the top plate and the bottom plate and are opposite to the side plate. The CPU fixing baffle is fixed to the CPU board, the communication fixing baffle is fixed to the communication board, and both the CPU fixing baffle and the communication fixing baffle are provided with wire passing holes.

[0025] In the technical solution of the embodiment of the present application, when wiring the CPU board and the communication board is required, the wire harness can pass through the wire passing holes on the CPU fixing baffle and the communication fixing baffle respectively, and be inserted into the set positions of the CPU board and the communication board.

[0026] In some embodiments, the communication module further includes a backplane, which is arranged on the side of the side plate facing the CPU board and the communication board. Power supply female head terminals are arranged on the side of the backplane facing the CPU board and the communication board. The V switch power supply is electrically connected to the CPU board and the communication board through the power supply female head terminals.

[0027] In the technical solution of the embodiment of the present application, the power supply female head terminals arranged on the back can supply ±12V voltage to the CPU board and the communication board by plugging and unplugging the male head terminals, thus facilitating the wiring of the CPU board and the communication board.

[0028] In some embodiments, the communication module further includes an inner lining board and two connecting plates. The inner lining board is arranged on the side of the bottom plate facing the top plate. Both the CPU board and the communication board are connected to the inner lining board through a connecting plate. Among them, the inner lining board has a plurality of installation grooves, and each connecting plate has a plurality of installation protrusions, and the installation protrusions and the installation grooves are matched and fixed.

[0029] In the technical solution of the embodiment of the present application, the side of the installation protrusion of the connecting plate can be spot welded to the inner lining board to achieve further fixation, and the VBC tooling adopts a sheet metal welding method to form a guide rail, which is convenient for the installation and disassembly of the board cards, and reduces the production process, simplifies the structure, and is easier to realize production processing and reduce the structural cost.

[0030] In some embodiments, heat dissipation holes are penetrated through the inner lining board and / or the side plate.

[0031] In the technical solution of the embodiment of the present application, neither wire passing nor electrical connection components are required on the side plate and the inner lining board. Therefore, heat dissipation holes are provided on the inner lining board and / or the side plate to dissipate heat for the CPU board and the communication board in the communication module, and improve the safety of the communication module.

[0032] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application are specifically given below. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. And in all the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0034] Figure 1 Schematic diagram of a system for connecting a test tooling for an energy storage sub-module to an energy storage sub-module provided according to one or more embodiments of the present application;

[0035] Figure 2 Schematic perspective view of a test tooling for an energy storage sub-module provided according to one or more embodiments of the present application;

[0036] Figure 3 is Figure 2 Another perspective schematic perspective view of the test tooling for an energy storage sub-module provided in

[0037] Figure 4 is Figure 2 The first partial exploded view of the test tooling for an energy storage sub-module provided in

[0038] Figure 5 is Figure 2 The third perspective schematic perspective view of the test tooling for an energy storage sub-module provided in

[0039] Figure 6 is Figure 2 The second partial schematic perspective view of the test tooling for an energy storage sub-module provided in

[0040] Figure 7 is Figure 2 The schematic perspective view of the communication module of the test tooling for an energy storage sub-module provided in

[0041] Figure 8 is Figure 2 The third partial structure view of the communication module of the test tooling for an energy storage sub-module provided in

[0042] 100. Test tooling; 10. Assembly main body; 10a. Accommodation space; 11. Top wall; 111. Guide rail; 112. Handle; 12. Bottom wall; 13. First side wall; 13b. Second side wall; 13c. Third side wall; 13c1. Through hole; 14. First fixing part; 15. Second fixing part; 16. Guide rail fixing part; 17. Handle fixing part; 18. Blocking part; 19. Fastening part; 20. Communication module; 21. Frame assembly; 211. Top plate; 212. Bottom plate; 213. Side plate; 214. Front plate; 22. CPU board; 23. Communication board; 24. CPU fixing baffle; 25. Communication fixing baffle; 26. Backplane; 27. Power supply female head terminal; 28. Lining plate; 29. Connecting plate; 30. On-off module; 40. DC power supply; 50. First switching power supply; 60. Second switching power supply; 70. Optical-electric converter; 80. Network switch; 90. High-voltage terminal; 200. Energy storage valve tower. Detailed implementation manners

[0043] The embodiments of the technical solution of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present application more clearly, and thus are only examples and should not be used to limit the protection scope of the present application.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0045] In the description of the embodiments of this application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "a plurality of" is more than two, unless otherwise specifically defined.

[0046] Referring to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0047] In the description of the embodiments of this application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0048] In the description of the embodiments of this application, the term "a plurality of" refers to more than two (including two). Similarly, "a plurality of groups" refers to more than two groups (including two groups), and "a plurality of pieces" refers to more than two pieces (including two pieces).

[0049] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present application.

[0050] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication between two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0051] In the future, the energy storage industry will be closely integrated with solar energy, wind energy and new energy vehicles, which is expected to bring huge development opportunities to the energy storage industry. Now, "photovoltaic + energy storage" has become a typical mode in the application scenarios of energy storage systems. With the increase in the number of photovoltaic energy storage power stations, the requirements for the power conversion efficiency of inverters are gradually increasing. To reduce costs and increase efficiency, a technical solution with high DC voltage input and high AC voltage (35KV) output for grid connection has emerged. Compared with the traditional energy storage method with a step-up transformer, the high-voltage direct-connected energy storage has the advantages of high safety, high efficiency, strong compatibility, high cost performance, etc. It can play a role in peak shaving and frequency modulation in the power system transmission and distribution, provide a standby power supply for the power grid, improve the recovery ability of the power grid after a fault, and ensure the power supply reliability of important loads; in the new energy scenario, it can balance the energy and suppress the fluctuations, and at the same time can replace the SVG in the new energy power station to meet the reactive power output requirements. The application prospect of the high-voltage direct-connected energy storage is very broad.

[0052] The high-voltage direct-connected energy storage valve tower includes multiple sub-modules, a busbar cabinet, a battery cabinet, etc., and adopts a connection method of series connection of sub-modules and parallel connection of battery cabinets. In the prior art, there are few test tools that can simultaneously detect the on-off of energy storage sub-modules and the communication status of power modules, busbar cabinets, and electrical cabinets in the sub-modules. Moreover, in the existing test tools, the structural layout is unreasonable and the detection effect is poor.

[0053] Based on this, the present application provides a test tool for energy storage sub-modules that can communicate and test the high-voltage direct-connected energy storage valve. The overall structure design is reasonable, the insulation design is reasonable, and various test requirements of the high-voltage direct-connected energy storage valve tower are realized.

[0054] According to some embodiments of the present application, with reference to Figures 1 to 3 , the present application provides a test tooling 100 for an energy storage sub-module, which includes an assembly main body 10, a communication module 20 and a switching module 30. An accommodation space 10a is provided inside the assembly main body 10, and both the communication module 20 and the switching module 30 are arranged in the accommodation space 10a. The communication module 20 and the switching module 30 are communicatively connected and both are communicatively connected to the energy storage sub-module. The switching module 30 is used to collect the voltage of the energy storage sub-module and detect the on / off state of the energy storage sub-module. The communication module 20 is used to detect the communication state of the energy storage sub-module. Among them, the assembly main body 10 has a top wall 11, a bottom wall 12 and a plurality of side walls connecting the top wall 11 and the bottom wall. The communication module 20 is connected to the top wall 11, and the switching module 30 is connected to one of the side walls.

[0055] The communication module 20 is used for optical fiber communication with the energy storage sub-module, executing programs and processing data. The switching module 30 is communicatively connected to the energy storage sub-module for obtaining or testing the on / off signal of the energy storage sub-module. The two cooperate with each other to detect the communication states of the power module, busbar cabinet and electrical cabinet in the energy storage sub-module.

[0056] The switching module 30 is a center for executing programs and processing data, which is used to collect the voltage of the energy storage sub-module and detect the on / off state of the energy storage sub-module. Specifically, the switching module 30 can be communicatively connected to the DC side of the energy storage valve sub-module to collect the voltage of the DC side of the energy storage sub-module.

[0057] By placing the communication module 20 at the top and the switching module 30 on the side, the internal space distance of the assembly main body 10 itself can be fully utilized, and various electrical modules of the test tooling 100 can be arranged in appropriate positions.

[0058] In this way, while ensuring the installation strength, the space distance of the assembly main body is effectively utilized, and the electrical insulation between the switching module 30 and the communication module 20 is ensured. As a result, the overall structure design is reasonable, the insulation design is reasonable, and the switching module 30 and the communication module 20 can collect and process various signals, thus realizing various test requirements for the energy storage sub-module of the high-voltage direct-connected valve tower 200.

[0059] Further, in the direction from the top wall 11 to the bottom wall 12, the communication module 20 and the switching module 30 are arranged in a staggered manner.

[0060] Understandably, even if the communication module 20 is placed at the top and the on-off module 30 is placed on the side, if the communication module 20 and the on-off module 30 are aligned vertically (i.e., in the direction from the top wall 11 to the bottom wall 12), there will still be a situation where the communication module 20 and the on-off module 30 are in contact and the electrical insulation distance is insufficient. Therefore, to solve this problem, the communication module 20 and the on-off module 30 are arranged in a staggered manner. At this time, there is not only a vertical distance but also a horizontal distance between the communication module 20 and the on-off module 30, thereby improving the electrical insulation effect and avoiding mutual interference between the two.

[0061] According to some embodiments of the present application, referring to Figures 1 to 2 , optionally, the energy storage sub-module test tooling 100 further includes a DC power supply 40 disposed in the accommodation space 10a. The DC power supply 40 is used to apply pressure to the energy storage valve sub-module, and the DC power supply 40 is connected to the bottom wall 12.

[0062] The way the DC power supply 40 applies pressure to the energy storage valve sub-module is to output a relatively high starting voltage to the energy storage valve sub-module. Specifically, the DC power supply 40 has a voltage input terminal and a voltage output terminal. The voltage input terminal can input a voltage of 220V, and the voltage output terminal can output a voltage up to 1KV at most. The voltage output terminal is electrically connected to the energy storage valve sub-module, specifically, it can be electrically connected to the DC side of the energy storage valve sub-module.

[0063] Since the DC power supply 40 is connected to the bottom wall 12, it can be separated from the communication module 20 connected to the top wall 11 and the on-off module 30 connected to the side wall, thereby reducing the influence of the relatively high voltage generated by the DC power supply 40 on the communication module 20 and the on-off module 30.

[0064] Furthermore, the energy storage valve sub-module test tooling 100 further includes a first switching power supply 50 and a second switching power supply 60 disposed in the accommodation space 10a. The first switching power supply 50 is electrically connected to the on-off module 30, and the second switching power supply 60 is electrically connected to the communication module 20. The first switching power supply 50 is connected to the top wall 11 and is arranged at intervals along the length direction of the top wall 11 with the communication module 20. The second switching power supply 60 is connected to the bottom wall 12 and is arranged at intervals along the length direction of the bottom wall 12 with the DC power supply 40.

[0065] The first switching power supply 50 and the second switching power supply 60 can supply power to the on-off module 30 and the communication module 20 respectively.

[0066] By setting the first switching power supply 50 to be connected to the top wall 11 and arranged at intervals from the communication module 20 along the length direction of the top wall 11, and the second switching power supply 60 to be connected to the bottom wall 12 and arranged at intervals from the DC power supply 40 along the length direction of the bottom wall 12, and the on-off module 30 is also connected to the side wall. Therefore, a relatively large space will be formed among the first switching power supply 50, the communication module 20, the on-off module 30, the second switching power supply 60 and the DC power supply 40. This space can accommodate the wiring to the greatest extent, making the wiring simpler, thus facilitating wiring and avoiding wire winding. In addition, a certain electrical distance will also be maintained among the first switching power supply 50, the communication module 20, the on-off module 30, the second switching power supply 60 and the DC power supply 40, reducing mutual interference.

[0067] It should be pointed out here that whether it is the DC power supply 40, or the first switching power supply 50 and the second switching power supply 60, a certain voltage needs to be input to them before they can output voltage. In the implementation manner of this application, in order to simplify the structure of the voltage input ends of the DC power supply 40, the first switching power supply 50 and the second switching power supply 60, a power strip is also provided. The power strip has a voltage input end, and the power strip also includes a plurality of voltage output ends. The plurality of voltage output ends are respectively electrically connected to the DC power supply 40, the first switching power supply 50 and the second switching power supply 60 for supplying power to the DC power supply 40, the first switching power supply 50 and the second switching power supply 60. Specifically, the voltage input end of the power strip can access 220V low-voltage electricity from the outside.

[0068] In the implementation manner of this application, the first switching power supply 50 and the second switching power supply 60 can be converted into the required ±15V and ±12V through different forms of architectures for different components to use.

[0069] According to some embodiments of this application, the energy storage sub-module test tooling 100 further includes an optical-electric converter 70 arranged in the accommodation space 10a. The optical-electric conversion switch 70 is electrically connected to the second switching power supply 60. The optical-electric conversion switch 70 is connected to the top wall 11 and arranged at intervals from the first switching power supply 50 and the communication module 20 along the length direction of the top wall 11.

[0070] The optical-electric conversion switch 70 is used to convert optical signals into electrical signals. Specifically, it is an Ethernet transmission media conversion unit that interchanges short-distance twisted-pair electrical signals and long-distance optical signals.

[0071] By connecting the optoelectronic conversion switch 70 to the top wall 11 and electrically connecting it to the second switching power supply 60 connected to the bottom wall 12, the connection line between the optoelectronic conversion switch 70 and the power supply can be simplified. And since it is arranged at an interval from the first switching power supply 50 and the communication module 20, it can avoid the connection line between the first switching power supply 50 and the on-off module 30 and the connection line between the communication module 20 and the second switching power supply 60 from crossing, reducing the winding situation.

[0072] Specifically, the communication module 20 is arranged between the first switching power supply 50 and the optoelectronic converter 70 to facilitate wiring and achieve a reasonable and uniform layout.

[0073] According to some embodiments of the present application, the energy storage sub-module test tooling 100 further includes a network switch 80 arranged in the accommodation space 10a. The network switch 80 is electrically connected to the communication module 20. The network switch 80 is arranged on the bottom wall 12 and is arranged between the DC power supply 40 and the second switching power supply 60 along the length direction of the bottom wall 12.

[0074] The main function of the network switch 80 is to transmit data with the communication module 20. It can connect multiple terminal devices and control the data flow direction. The network switch 80 can also be communicatively connected to a PC host computer for receiving control commands from the PC host computer. In the embodiment of the present application, the network switch 80 is also electrically connected to the optoelectronic converter 70 and can transmit data with the optoelectronic converter 70.

[0075] By arranging the network switch 80 between the DC power supply 40 and the second switching power supply 60, the DC power supply 40 and the second switching power supply 60 can be separated, thereby avoiding interference between the power supplies.

[0076] In the embodiment of the present application, the length direction of the top wall 11 and the length direction of the bottom wall 12 are arranged in parallel.

[0077] In some embodiments, optionally, the test tooling 100 further includes a high-voltage terminal 90. The high-voltage terminal 90 has a set electrical distance from the communication module 20 and / or the on-off module 30.

[0078] The high-voltage terminal 90 is used for the test tooling 100 to access high-voltage wires. The high-voltage terminal 90 and the DC power supply 40 are arranged on the same side of the side wall, so as to facilitate wiring. While avoiding winding, the high-voltage terminal 90 maintains a sufficient electrical distance from the surrounding electrical components.

[0079] Specifically, the set electrical distance can be selected according to the specific high voltage accessed by the high-voltage terminal 90 and the specific specifications of the assembly body 10. The present application does not make a limitation here.

[0080] Further, the high-voltage terminal 90 may include two to form a pair of input interfaces.

[0081] In some embodiments, optionally, refer to Figures 2 to 6 , the multiple side walls include a first side wall 13a and a second side wall 13b. The first side wall 13a and the second side wall 13b intersect and are connected. The on-off module 30 is connected to the first side wall 13a. The test tooling 100 further includes a high-voltage terminal 90. The high-voltage terminal 90 is disposed on the second side wall 13b. One end of the DC power supply 40 is connected to the second side wall 13b.

[0082] The high-voltage terminal 90 is disposed on the second side wall 13b connected to the DC power supply 40, which is convenient for wiring. Moreover, the high-voltage terminal 90 and the communication module 20 are connected to different side walls, making full use of the internal space of the assembly body 10, thereby ensuring sufficient electrical spacing between the high-voltage terminal 90 and the communication module 20 and improving the safety performance.

[0083] It can be understood that the multiple side walls of the present application may only include the first side wall 13a and the second side wall 13b. At this time, the first side wall 13a, the second side wall 13b, the top wall 11, and the bottom wall 12 are connected to form a closed assembly body 10. The multiple side walls may also include other side walls in addition to the first side wall 13a and the second side wall 13b. All the side walls, the top wall 11, and the bottom wall 12 are connected to form a closed assembly body 10.

[0084] The size and thickness of each side wall are not limited and are specifically set according to the setting requirements of the entire test tooling 100.

[0085] According to some embodiments of the present application, refer to Figure 5 , the assembly body 10 further includes a blocking member 18. The side wall has a through hole 13c1 communicating with the on-off module 30. The blocking member 18 can cover the through hole 13c1.

[0086] When the blocking member 18 covers the through hole 13c1, the fastener 19 fixes and combines the side wall and the blocking member 18 to form a flat surface structure.

[0087] When the fastener 19 is removed, the blocking member 18 is disassembled and separated from the side wall, and the through hole 13c1 is exposed. The optical fiber can pass through the through hole 13c1 to be plugged and unplugged with the on-off module 30. Thus, without disassembling other structures of the assembly body 10, only by disassembling the blocking member 18, the plugging and unplugging of the optical fiber on the on-off module 30 can be realized, which is convenient for connecting with the energy storage sub-module in actual engineering.

[0088] The blocking member 18 and the main body can be connected to the third side wall 13c by means of riveting screws, snap connection, etc. The specific connection method is not limited.

[0089] Specifically, the multiple side walls further include a third side wall 13c. The third side wall 13c intersects and connects with the second side wall 13b and is arranged parallel to the first side wall 13a. The first side wall 13a has a through hole 13c1.

[0090] In some embodiments, optionally, referring to Figure 7 , the assembly body 10 further includes a guide rail fixing member 16 and a guide rail. The guide rail fixing member 16 is arranged on the first side wall 13a. The guide rail is arranged on the side of the top wall 11 facing the accommodation space 10a. The guide rail is connected to the guide rail fixing member 16, and the optical - electrical converter 70 is slidably and detachably mounted on the guide rail.

[0091] Through the fixed connection between the guide rail fixing member 16 and the guide rail, the top wall 11 and the first side wall 13a are fixedly connected. Moreover, the optical - electrical converter 70 can be connected to the top wall 11 through the sliding connection with the guide rail on the top wall 11.

[0092] Furthermore, the optical - electrical converter 70 can slide along the guiding direction of the guide rail until it disengages from the guide rail and is removed from the top wall 11, thereby realizing the detachable connection between the optical - electrical converter 70 and the guide rail.

[0093] In a specific embodiment, a clearance space can be formed between the guide rail fixing member 16 and the first side wall 13a. A fixing nut is provided on the side of the guide rail fixing member 16 facing the first side wall 13a. Mounting holes are provided on the guide rail. The fixing bolts can pass through the mounting holes and the guide rail fixing member 16 and penetrate into the clearance space, and are fixed to the fixing nut. In this way, during actual installation and fixing, the user only needs to drive in the fixing bolts from the outside, and the operation is simple and convenient.

[0094] In some embodiments, optionally, referring to Figure 3 , the communication module 20 includes a housing assembly 21, a CPU board 22 and a communication board 23. The CPU board 22 and the communication board 23 are arranged at intervals within the housing assembly 21 and are connected to the housing assembly 21. Among them, the housing assembly 21 is semi - open.

[0095] The CPU board 22 and the communication board 23 are common electrical components. The semi - open type of the housing assembly 21 means that the space formed by enclosing the housing assembly 21 has an opening on one side and does not completely enclose the internal space of the housing assembly 21. The user can observe or operate the internal CPU board 22 and communication board 23 through the opening side.

[0096] The communication module 20 is the main electrical component for information communication and processing. It not only needs to maintain an insulating distance from other electrical components but also requires electromagnetic shielding. First, the assembly main body 10 forms an overall enclosed structure to conduct electromagnetic shielding between the outside and the communication module 20. And, the frame assembly 21 is semi-open. While providing a certain degree of electromagnetic shielding protection for the internal CPU board 22 and communication board 23, it also enables users to observe the internal wiring situation conveniently.

[0097] At the same time, the CPU board 22 and the communication board 23 are arranged at intervals to improve electrical safety performance and avoid mutual interference between the two.

[0098] In some embodiments, optionally, refer to Figure 3 , the frame assembly 21 includes a top plate 211 and a bottom plate 212 arranged oppositely, and a rear plate (not shown in the figure) and a front plate 214 disposed between the top plate 211 and the bottom plate 212. The rear plate and the front plate 214 are arranged oppositely, and at least part of the orthographic projection of the rear plate facing the front plate 214 falls outside the front plate 214. The rear plate, the CPU board 22, and the communication board 23 are arranged at intervals. The frame assembly 21 is provided with an opening on one side of the front plate 214, and the opening faces the first side wall 13a.

[0099] The top plate 211 and the bottom plate 212 can be flat plate-like structures of equal size and the same material. The frame assembly 21 surrounded by three sides is formed by the top plate 211, the bottom plate 212, and the rear plate, and the area of the rear plate is larger than that of the front plate 214. In this way, the projection of the side of the rear plate facing the front plate 214 covers the front plate 214 and the opening. The rear plate encloses from the rear of the CPU board 22 and the communication board 23, and the front plate 214 encloses from the front of the CPU board 22 and the communication board 23.

[0100] After actually installing the communication module 20 into the accommodating space 10a, the formed opening faces the first side wall 13a. At this time, only by removing the first side wall 13a can one see the inside of the communication module 20 from the outside through the opening, thereby further improving the electromagnetic shielding effect.

[0101] In some embodiments, optionally, refer to Figure 3 , the communication module 20 includes a CPU fixing baffle 24, a communication fixing baffle 25, and a side plate 213. The side plate 213 is disposed between the top plate 211 and the bottom plate 212 and intersects with the rear plate. The CPU fixing baffle 24 and the communication fixing baffle 25 are both disposed between the top plate 211 and the bottom plate 212 and are arranged oppositely to the side plate 213. The CPU fixing baffle 24 is fixed to the CPU board 22, the communication fixing baffle 25 is fixed to the communication board 23, and through holes are provided on both the CPU fixing baffle 24 and the communication fixing baffle 25.

[0102] During actual assembly, the CPU fixing baffle 24 and the CPU board 22 can be fixed first. After the communication fixing baffle 25 and the communication board 23 are fixedly connected, the CPU fixing baffle 24 and the communication fixing baffle 25 are arranged on the same side between the top plate 211 and the bottom plate 212 and opposite to the side plate 213. In this way, the rear plate, the front plate 214, the CPU fixing baffle 24, the communication fixing baffle 25, and the side plate 213 form a four-sided fixation of the CPU board 22 and the communication board 23 in the front, back, left, and right directions, and the top plate 211 and the bottom plate 212 form an up-and-down two-sided fixation of the CPU board 22 and the communication board 23.

[0103] When wiring the CPU board 22 and the communication board 23 is required, the wire harnesses can respectively pass through the wire passing holes on the CPU fixing baffle 24 and the communication fixing baffle 25 and be inserted into the set positions of the CPU board 22 and the communication board 23.

[0104] In some embodiments, optionally, refer to Figure 3 , the communication module 20 further includes a backplane 26. The backplane 26 is arranged on the side of the side plate 213 facing the CPU board 22 and the communication board 23. A power supply female terminal 27 is arranged on the side of the backplane 26 facing the CPU board 22 and the communication board 23. The second switching power supply 60 is electrically connected to the CPU board 22 and the communication board 23 through the power supply female terminal 27.

[0105] The backplane 26 is arranged in the internal space formed by enclosing the front plate 214, the rear plate, the side plate 213, the CPU fixing baffle 24, and the communication fixing baffle 25. The power supply female terminal 27 arranged on the back surface can supply ±12V voltage to the CPU board 22 and the communication board 23 in a way of plugging and unplugging the male terminal, thus facilitating the wiring of the CPU board 22 and the communication board 23.

[0106] In some embodiments, optionally, refer to Figure 8 , the communication module 20 further includes a lining plate 28 and two connecting plates 29. The lining plate 28 is arranged on the side of the bottom plate 212 facing the top plate 211. Both the CPU board 22 and the communication board 23 are connected to the lining plate 28 through a connecting plate 29. Among them, the lining plate 28 has a plurality of mounting grooves, and each connecting plate 29 has a plurality of mounting protrusions. The mounting protrusions and the mounting grooves are matched and fixed.

[0107] Specifically, the bottom of the CPU board 22 and the communication board 23 can be connected to the connecting plate 29 through bolts, and the other end of the connecting plate 29 forms a plurality of mounting protrusions. Since the CPU board 22 and the communication board 23 are arranged at intervals, the connecting plates 29 respectively connected to the CPU board 22 and the communication board 23 are also arranged at intervals. Correspondingly, two rows of mounting grooves are arranged on the lining plate 28, and each row of mounting grooves is fixed corresponding to the mounting protrusions of one connecting plate 29.

[0108] Furthermore, the side edges of the mounting protrusions of the connecting plate 29 can be spot welded to the inner lining plate 28 for further fixation, and the VBC tooling adopts sheet metal welding to form guide rails, which facilitates the installation and loading and unloading of boards, reduces the production process, simplifies the structure, makes it easier to realize production and processing, and reduces the structural cost.

[0109] In some embodiments, optionally, heat dissipation holes are formed through the inner lining plate 28 and / or the side plate 213 .

[0110] There is no need for wires to be passed through the side panel 213 and the inner lining panel 28, and there are no electrical connection components. Therefore, heat dissipation holes are set on the inner lining panel 28 and / or the side panel 213 to dissipate heat for the CPU board 22 and the communication board 23 in the communication module 20 and to improve the safety of the communication module 20.

[0111] In some embodiments, optionally, see Figure 2 and Figure 6 The assembly body 10 further includes a first fixing portion 14 and a second fixing portion 15 disposed in the accommodating space 10a. The first fixing portion 14 is disposed around and fixed to the outer periphery of the DC power supply 40, and the second fixing portion 15 is disposed around and fixed to the outer periphery of the network switch 80.

[0112] Generally, the DC power supply 40 and the network switch 80 are relatively complete accessories, and when they are provided to the test fixture 100 , they are generally not provided with reserved fixing holes such as mounting holes for fixing the DC power supply 40 and the network switch 80 .

[0113] Because, in order to fix the DC power supply 40 and the network switch 80 in the accommodating space 10a, a first fixing portion 14 and a second fixing portion 15 are provided. The first fixing portion 14 is arranged around the outer periphery of the DC power supply 40, and the second fixing portion 15 is arranged around the outer periphery of the network switch 80. Thus, the DC power supply 40 and the network switch 80 are fixed without the need for additional processing of the DC power supply 40 and the network switch 80.

[0114] Furthermore, the first fixing portion 14 and the second fixing portion 15 can both be strip structures provided on the bottom wall 12, which are bent into different shapes according to the shapes and volumes of the DC power supply 40 and the network switch 80, so as to respectively clamp around the outer periphery of the DC power supply 40 and the network switch 80.

[0115] In some embodiments, optionally, the testing tool 100 further includes a handle 112 , which is disposed on a side of the top wall 11 facing away from the accommodating space 10 a .

[0116] A portable handle position can be formed between the handle 112 and the top wall 11. The user can lift the entire test tooling 100 from this portable handle position, thereby forming a portable energy storage sub-module test tooling 100, which facilitates the user to move its position at any time.

[0117] The handle 112 and the top wall 11 can be fixed by handle fixing parts 17 such as screws, bolts, etc. The specific fixing method is not limited.

[0118] According to some embodiments of the present application, referring to Figure 1 , the present application provides an energy storage sub-module test tooling 100, which includes an assembly main body 10, a communication module 20, a switching module 30, a DC power supply 40, a first switching power supply 50, a second switching power supply 60, an optical-electric converter 70 and a network switch 80. The energy storage sub-module test tooling 100 collects the AC-side voltage of the sub-module and detects the on-off state of the sub-module through the switching module 30 in the test tooling 100, communicates with the control module through the communication module 20 in the test tooling 100, and detects the communication states of the power module, busbar cabinet and electrical cabinet in the sub-module. And through the reasonable arrangement of the above components in the assembly main body 10, while ensuring the safety insulation distance, the internal space of the assembly main body 10 is fully utilized to provide a test tooling 100 with a reasonable overall structure design, wire arrangement layout and insulation design.

[0119] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered within the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A test tool for an energy storage sub-module, characterized in that Comprising: An assembly main body with an accommodation space inside; A communication module and a switching module, both the communication module and the switching module are arranged in the accommodation space, the communication module and the switching module are communicatively connected, the switching module is used to collect the voltage of the energy storage sub-module and detect the on / off state of the energy storage sub-module, and the communication module is used to detect the communication state of the energy storage sub-module; Wherein, the assembly main body has a top wall, a bottom wall and a plurality of side walls connecting between the top wall and the bottom wall, the communication module is connected to the top wall, and the switching module is connected to one of the side walls.

2. The energy storage sub-module testing tooling according to claim 1, characterized in that, In the direction opposite to the top wall and the bottom wall, the communication module and the switching module are arranged in a staggered manner.

3. The energy storage sub-module test tooling according to claim 1, wherein The energy storage sub-module test tooling further includes a DC power supply arranged in the accommodation space, the DC power supply is used to apply pressure to the energy storage sub-module, and the DC power supply is connected to the bottom wall.

4. The energy storage sub-module testing tooling according to claim 3, characterized in that The energy storage sub-module test tooling further includes a first switching power supply and a second switching power supply arranged in the accommodation space; the first switching power supply is electrically connected to the switching module, and the second switching power supply is electrically connected to the communication module; The first switching power supply is connected to the top wall and is arranged at an interval from the communication module along the length direction of the top wall; the second switching power supply is connected to the bottom wall and is arranged at an interval from the DC power supply along the length direction of the bottom wall.

5. The energy storage sub-module test tooling according to claim 4, characterized in that The energy storage sub-module test tooling further includes an optical-electric converter arranged in the accommodation space, and the optical-electric converter is electrically connected to the second switching power supply; The optical-electric converter is connected to the top wall and is arranged at an interval from the first switching power supply and the communication module along the length direction of the top wall.

6. The energy storage sub-module test tooling according to claim 4, characterized in that The energy storage sub-module test tooling further includes a network switch arranged in the accommodation space, and the network switch is electrically connected to the communication module; The network switch is arranged on the bottom wall and is arranged between the DC power supply and the second switching power supply along the length direction of the bottom wall.

7. The energy storage sub-module test tooling according to claim 1, wherein The assembly main body further includes a blocking member, the side wall has a through hole communicating with the switching module, and the blocking member can cover the through hole.

8. The energy storage sub-module test tooling according to claim 1, wherein The communication module includes a frame assembly, a CPU board and a communication board, the CPU board and the communication board are arranged at intervals in the frame assembly and are connected to the frame assembly, wherein the frame assembly is semi-open.

9. The energy storage sub-module test tooling according to claim 8, wherein, The frame assembly includes a top plate and a bottom plate arranged oppositely, and a rear plate and a front plate arranged between the top plate and the bottom plate, the rear plate and the front plate are arranged oppositely and at least part of the orthographic projection of the rear plate facing the front plate falls outside the front plate, and the rear plate, the CPU board and the communication board are arranged at intervals; Among the plurality of side walls, there is a first side wall, the switching module is connected to the first side wall, and the frame assembly has an opening on one side of the front plate, and the opening faces the first side wall.

10. The energy storage sub-module test tooling according to claim 9, wherein The communication module includes a CPU fixing baffle, a communication fixing baffle and a side plate, the side plate is arranged between the top plate and the bottom plate and intersects and connects with the rear plate; The CPU fixing baffle and the communication fixing baffle are both arranged between the top plate and the bottom plate and are oppositely arranged relative to the side plate. The CPU fixing baffle is fixed to the CPU board, the communication fixing baffle is fixed to the communication board, and wire passing holes are provided on both the CPU fixing baffle and the communication fixing baffle.

11. The energy storage sub-module test tooling according to claim 10, wherein The communication module further includes a backplane, and the backplane is arranged on the side of the side plate facing the CPU board and the communication board; Power supply female head terminals are provided on one side of the backplane facing the CPU board and the communication board, and the second switching power supply is electrically connected to the CPU board and the communication board through the power supply female head terminals.

12. The energy storage sub-module test tooling according to claim 11, wherein The communication module further includes an inner lining plate and two connecting plates. The inner lining plate is arranged on the side of the bottom plate facing the top plate, and both the CPU board and the communication board are connected to the inner lining plate through one of the connecting plates; Wherein, the inner lining plate has a plurality of installation grooves, each of the connecting plates has a plurality of installation convex parts, and the installation protrusions and the installation grooves are matched and fixed.

13. The energy storage sub-module test tooling according to claim 12, characterized in that, Heat dissipation holes are penetrated through the inner lining plate and the side plate.

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