Structure internally provided with BMS module and EMS module

Abstract

The utility model discloses a structure internally provided with a BMS module and an EMS module, the structure comprises a machine body, the machine body comprises a machine frame assembly and a BMSEMS assembly installed in the machine frame assembly, the BMSEMS assembly comprises an installation box, the BMS module, the EMS module and an upper cover plate, the installation box comprises a box body and a front panel, the front panel is installed on the machine frame assembly, and the upper cover plate is installed on the box body. The box body is installed on the front panel, the BMS module is installed on the inner bottom wall of the installation box, the EMS module is installed on the inner bottom wall of the installation box through an EMS module installation plate, and the upper cover plate is assembled on the box body of the installation box through installation screws. The BMS module and the EMS module are installed in the PCS case, integration of the EMS module, the BMS module and the energy storage converter is achieved through the structure, and the structural integration level of an energy storage product is improved.

Description

Technical Field

[0001] This application relates to the field of industrial and commercial energy storage integrated machines, and particularly to a structure with an internally installed BMS module and EMS module. Background Art

[0002] The cost of lithium iron phosphate batteries has been continuously optimized, and the technology of solid-state batteries has been continuously matured and promoted in the market. The application of industrial and commercial energy storage in the power grid has been gradually promoted, and its role in power grid stability has also gradually emerged. With the application expansion in different scenarios, due to the restrictions on height and volume in many scenarios, the requirement for the system integration of industrial and commercial energy storage is getting higher and higher. At the same time, the reduction of size will also bring cost optimization.

[0003] The outdoor integrated cabinet for industrial and commercial energy storage mainly includes battery PACK, high-voltage box, PCS (Power Conversion System, energy storage inverter), AC distribution, liquid cooler, etc. The inside of the high-voltage box is mainly the part on the DC side of the battery, including fuse, circuit breaker, BMS (Battery Management System), current sensor, etc. Usually, the high-voltage box is designed as a box installed on top of the PCS, with low overall dimension utilization rate, mismatched sizes between the internal circuit breaker and other devices, and large internal space. How to integrate the high-voltage and related main circuit parts with the PCS has been under research. Some products have met the basic requirements for the main circuit, but the BMS is still treated as a separate box. On the one hand, considering that the BMS is mainly used for debugging and monitoring together with the battery, and on the other hand, considering after-sales maintenance, the BMS and PCS need to be separated. How to integrate the BMS and EMS (Energy Management System) and facilitate after-sales maintenance is a problem worthy of research. The handling of this problem can not only improve the power density of the system, but also reduce costs from the perspectives of the system and after-sales maintenance. Generally speaking, the integrated design of the integration among BMS, EMS, and PCS has practical application value and significance. Content of the Utility Model

[0004] The purpose of this application is to provide a structure with an internally installed BMS module and EMS module, install the BMS module and EMS module inside the PCS chassis, and realize the integration of the EMS module and BMS module with the energy storage inverter through this structure, so as to improve the structural integration degree of the energy storage product.

[0005] A structure with built-in BMS module and EMS module, including a body, the body includes a frame assembly and a BMSEMS assembly installed inside the frame assembly, the BMSEMS assembly includes an installation box, a BMS module, an EMS module and an upper cover plate, the installation box includes a box body and a front panel, the front panel is installed on the frame assembly, the box body is installed on the front panel, the BMS module is installed on the inner bottom wall of the installation box, the EMS module is installed on the inner bottom wall of the installation box through an EMS module mounting plate, and the upper cover plate is assembled on the box body of the installation box through installation screws.

[0006] Optionally, a first sealing strip is coated on the inner surface of the upper cover plate.

[0007] Optionally, a window is opened on the front end face of the installation box for the communication interfaces of the BMS module and the EMS module, and the size and position of the window are adjusted according to the number and shape of the communication interfaces of the BMS module and the EMS module.

[0008] Optionally, a second sealing strip is coated around the inner surface of the front panel of the installation box.

[0009] Optionally, a number of press rivet studs are connected to the bottom plate of the installation box for installing the BMS module and the EMS module.

[0010] Optionally, a flange edge is provided at the opening position of the installation box, and the first sealing strip on the upper cover plate is in close contact with the flange edge.

[0011] Optionally, a guide rail is welded on the front end face of the frame assembly, and the guide rail is used to support and guide the installation of the BMSEMS assembly.

[0012] In summary, the present application includes at least one of the following beneficial technical effects:

[0013] 1. The installation box has a simple structure and lightweight materials, reducing the impact of the BMS EMS assembly on the overall mass of the energy storage converter.

[0014] 2. The PCB board of the BMS module can be installed in the installation box, and the window opened on the front end face of the installation box and the external dimensions of the installation box can be adjusted accordingly;

[0015] 3. The BMSEMS assembly facilitates the disassembly and maintenance of the EMS module and the BMS module by users.

[0016] 4. Sealing strips are coated around the front panel of the installation box, and an effective seal can be formed between the BMSEMS assembly and the front end face of the frame assembly during installation; rivet studs are provided on the bottom plate of the installation box to install the BMS EMS module inside the box body; the above two points meet the IP65 protection level requirements of the energy storage converter chassis.

[0017] 5. The guide rail plays a supporting role when installing the BMSEMS component, enabling the front end face of the frame component to fully fit with the front panel of the installation box to form a seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of an embodiment of the present application.

[0019] Figure 2 It is a schematic distribution diagram of the installation structure involved in the present application inside the machine body.

[0020] Figure 3 It is an assembly schematic diagram of the BMSEMS component in an embodiment of the present application.

[0021] Figure 4 It is a schematic structural diagram of the machine body in an embodiment of the present application, mainly used to display the guide rail inside the machine body.

[0022] Figure 5 It is an exploded schematic diagram of the installation box in an embodiment of the present application.

[0023] Figure 6 It is a schematic structural diagram of the front end face of the installation box in an embodiment of the present application.

[0024] Figure 7 It is a schematic structural diagram of the installation box from a top-down perspective in an embodiment of the present application.

[0025] Figure 8 It is a schematic structural diagram of the upper cover plate in an embodiment of the present application.

[0026] DESCRIPTION OF THE REFERENCE NUMERALS:

[0027] 1. Machine body; 2. BMSEMS component; 3. First installation screw; 4. Guide rail; 5. Installation box; 6. BMS module; 7. Second installation screw; 8. Fixing screw; 9. EMS module mounting plate; 10. EMS module; 11. Third installation screw; 12. Upper cover plate; 13. Fourth installation screw; 14. First sealing strip; 15. Rivet stud; 16. Second sealing strip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] For ease of understanding the present application, the following provides a more detailed description of the present application in conjunction with the drawings and specific embodiments. It should be noted that when an element is expressed as "fixed to" another element, it can be directly on the other element, or there can be one or more intermediate elements therebetween. When an element is expressed as "connected to" another element, it can be directly connected to the other element, or there can be one or more intermediate elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application pertains. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0030] An embodiment of this application discloses a structure with an internally installed BMS module and an EMS module. Referring to Figure 1 and Figure 2 , it includes a body 1, and the body 1 includes a frame assembly and a BMSEMS assembly 2 installed within the frame assembly.

[0031] Referring to Figure 2 , Figure 3 and Figure 4 , a guide rail 4 is welded to the front end face of the frame assembly. The guide rail 4 is used to support and guide the installation of the BMSEMS assembly 2. The BMSEMS assembly 2 is located above the front part within the body 1. The BMSEMS assembly 2 maintains a certain physical distance from the internal PCB circuit board of the body 1 to reduce interference with the BMSEMS assembly 2 when the body 1 is operating.

[0032] Referring to Figure 3 , Figure 4 and Figure 5 , the BMSEMS assembly 2 includes an installation box 5, a BMS module 6, an EMS module 10, and an upper cover plate 12. The installation box 5 includes a box body and a front panel. The box body and the front panel are made of 5052 aluminum alloy. The box body is formed by sheet metal processing, and the front panel and the box body are formed by welding. Windows are opened on the front end face of the installation box 5 for the communication interfaces of the BMS module 6 and the EMS module 10. The size and position of the windows are adjusted according to the number and shape of the communication interfaces of the BMS module and the EMS module.

[0033] Referring to Figure 3 and Figure 6 , the front panel of the installation box 5 is fixed to the frame assembly by first mounting screws 3.

[0034] Referring to Figure 5 , Figure 6 and Figure 7 , a number of press studs 15 are fixedly connected to the bottom plate of the installation box 5 for installing the BMS module 6 and the EMS module 10. The BMS module 6 is installed on the inner bottom wall of the installation box 5 by second mounting screws 7. An EMS module mounting plate 9 is installed on the inner bottom wall of the installation box 5 by third mounting screws 11, and the EMS module 10 is installed on the EMS module mounting plate 9 by fixing screws 8.

[0035] Referring to Figure 3, Figure 5 and Figure 8 , a second sealing strip 16 is coated around the inner surface of the front panel of the installation box 5. When the front panel is installed on the frame assembly, the second sealing strip 16 can improve the sealing performance between the front panel and the frame assembly.

[0036] Referring to Figure 5 , Figure 6 and Figure 7 , the upper cover plate 12 is assembled on the box body of the installation box 5 through the fourth installation screw 13, and a first sealing strip 14 is coated on the inner surface of the upper cover plate 12. A flange edge is provided at the opening position of the installation box 5, and the first sealing strip 14 on the upper cover plate 12 is in close contact with the flange edge.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A structure with a built-in BMS module and an EMS module, characterized in that: The invention comprises a machine body (1), wherein the machine body (1) comprises a frame assembly and a BMS EMS assembly (2) installed in the frame assembly, wherein the BMS EMS assembly (2) comprises an installation box (5), a BMS module (6), an EMS module (10) and an upper cover plate (12), wherein the installation box (5) comprises a housing and a front panel, wherein the front panel is installed on the frame assembly, wherein the housing is installed on the front panel, wherein the BMS module (6) is installed on the inner bottom wall of the installation box (5), wherein the EMS module (10) is installed on the inner bottom wall of the installation box (5) via an EMS module installation plate (9), and wherein the upper cover plate (12) is assembled on the housing of the installation box (5) via installation screws.

2. The structure of a built-in BMS module and an EMS module according to claim 1, characterized in that: A first sealing strip (14) is coated on the inner surface of the upper cover plate (12).

3. The structure of a built-in BMS module and an EMS module according to claim 1, characterized in that: A window is provided on the front face of the installation box (5) for the communication interfaces of the BMS module (6) and the EMS module (10), and the size and position of the window are adjusted according to the number and shape of the communication interfaces of the BMS module (6) and the EMS module (10).

4. The structure of a built-in BMS module and an EMS module according to claim 1, characterized in that: The inner surface of the front panel of the installation box (5) is coated with a second sealing strip (16) around its periphery.

5. The structure of a built-in BMS module and an EMS module according to claim 1, characterized in that: A plurality of riveting studs (15) are connected to the bottom plate of the installation box (5) and are used for installing the BMS module (6) and the EMS module (10).

6. The structure of a built-in BMS module and an EMS module according to claim 2, characterized in that: A flange edge is provided at the opening position of the installation box (5), and the first sealing strip (14) on the upper cover plate (12) is in close contact with the flange edge.

7. The structure of a built-in BMS module and an EMS module according to claim 1, characterized in that: A guide rail (4) is welded to the front end surface of the frame assembly, and the guide rail (4) is used to support and guide the installation of the BMSEMS assembly (2).

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