Energy storage converter mounting structure of external BMS (Battery Management System)

Abstract

The utility model discloses an energy storage converter installation structure of an external BMS, and the structure comprises a case, two opposite outer side walls of the case are provided with a left side handle support and a right side handle support respectively, and the left side handle support and the right side handle support are each provided with a through hole used for being fixedly connected with an outdoor energy storage integrated cabinet. A mounting plate is hinged to the left handle support and the right handle support jointly, a BMS mounting box and an EMS mounting box are mounted on the mounting plate, and a limiting part used for limiting overturning of the mounting plate is arranged on the case. The BMS mounting box and the EMS mounting box are mounted on the mounting plate, the BMS module is mounted in the BMS mounting box, and the EMS module is mounted in the EMS mounting box, so that the BMS module is mounted on the case of the PCS, the BMS module and the EMS module are convenient to overhaul and maintain in the later period, the system integration degree is improved, and the space is effectively utilized.

Description

Technical Field

[0001] The present application relates to the field of integrated energy storage devices, and in particular to an installation structure of a power conversion system (PCS) with an external battery management system (BMS). Background Art

[0002] Battery technology is constantly updated and the cost is gradually reduced. Energy storage is increasingly applied in the industrial and commercial fields. As an independent energy storage unit, the industrial and commercial outdoor integrated cabinet has been widely promoted and applied in the market due to its convenience. Due to many conditions such as the actual site and height of the application scenario, the requirement for system integration is getting higher and higher, not only considering the size, but also more considering the optimization of cost, etc.

[0003] With the continuous development of battery technology and the gradual reduction of cost, energy storage systems are increasingly widely used in the industrial and commercial fields. In particular, the outdoor integrated cabinet, as an integrated energy storage solution, has been widely used in the market due to its convenience and flexibility. The outdoor integrated cabinet usually includes main components such as batteries, a power conversion system (PCS), a high-voltage box, AC distribution, and a liquid cooling machine. Among them, the high-voltage box contains the DC-side components of the battery, such as fuses, circuit breakers, a battery management system (BMS), an energy management system (EMS), and sensors.

[0004] In view of the above related technologies, the inventor believes that there are the following defects: The BMS and PCS still exist as independent units, which not only increases the complexity of the system, but also reduces the integration degree of the system, and is not convenient for later maintenance and repair. How to solve the integration between the BMS and PCS is a problem worthy of research. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the present application provides an installation structure of a power conversion system (PCS) with an external battery management system (BMS) to solve the above problems.

[0006] An installation structure of a power conversion system (PCS) with an external battery management system (BMS) includes a chassis. On the opposite outer side walls of the chassis, a left handle bracket and a right handle bracket are respectively provided. Through holes for connecting and fixing with an outdoor integrated energy storage cabinet are opened on both the left handle bracket and the right handle bracket. An installation plate is jointly hinged on the left handle bracket and the right handle bracket. A BMS installation box and an EMS installation box are installed on the installation plate. A limiting member for restricting the flipping of the installation plate is provided on the chassis.

[0007] By adopting the above technical solution, a BMS installation box and an EMS installation box are installed on the mounting plate. The BMS module is installed in the BMS installation box, and the EMS module is installed in the EMS installation box, so that the BMS module is installed on the chassis of the PCS, which is convenient for later maintenance and repair of the BMS module and the EMS module, improves the system integration degree, and effectively utilizes the space.

[0008] Optionally, the limiting member includes two sliding rails arranged on the outer side wall of the chassis. A sliding nut is slidably connected to each sliding rail, and a fastening screw is threadedly connected to the sliding nut. Two chute holes for the fastening screws to be inserted are symmetrically formed at the movable end of the mounting plate.

[0009] By adopting the above technical solution, the fastening screw can slide along the length direction of the sliding rail. Slide the fastening screw into the chute hole on the mounting plate, and then tighten the fastening screw so that the fastening screw presses the mounting plate, thereby restricting the mounting plate from flipping.

[0010] Optionally, the limiting member includes a spring bolt, and a locking hole for the spring bolt to be inserted is formed on the left handle bracket.

[0011] Optionally, a flange hem is vertically arranged on the mounting plate.

[0012] By adopting the above technical solution, the flange hem can improve the structural strength of the mounting plate.

[0013] Optionally, hanging lock rings are connected to both the left handle bracket and the right handle bracket. Locking holes for the hanging lock rings to pass through are formed on the flange hem of the mounting plate, and a locking member is inserted into the hanging lock ring.

[0014] By adopting the above technical solution, after the hanging lock ring passes through the locking hole, insert the locking member into the hanging lock ring, thereby locking the mounting plate and keeping the mounting plate in a horizontal state.

[0015] Optionally, the locking member is a positioning pin or a screwdriver.

[0016] Optionally, both ends of the mounting plate are respectively connected to the left handle bracket and the right handle bracket through hinge hinges.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] 1. A BMS installation box and an EMS installation box are installed on the mounting plate. The BMS module is installed in the BMS installation box, and the EMS module is installed in the EMS installation box, so that the BMS module is installed on the chassis of the PCS, which is convenient for later maintenance and repair of the BMS module and the EMS module, improves the system integration degree, and effectively utilizes the space.

[0019] 2. The fastening screw can slide along the length direction of the sliding guide rail. Slide the fastening screw into the chute hole on the mounting plate, and then tighten the fastening screw so that the fastening screw presses against the mounting plate, thereby restricting the flipping of the mounting plate. Brief Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present application.

[0021] Figure 2 It is a schematic structural diagram of the mounting plate in Embodiment 1 of the present application when it is flipped to the horizontal state.

[0022] Figure 3 It is a partially enlarged schematic diagram of Embodiment 1 of the present application.

[0023] Figure 4 It is a schematic diagram of the state when the fastening screw slides into the chute hole in Embodiment 1 of the present application.

[0024] Figure 5 It is a schematic diagram of the state when the fastening screw is removed from the chute hole in Embodiment 1 of the present application.

[0025] Figure 6 It is a schematic diagram of the state after the locking member locks the mounting plate in Embodiment 1 of the present application.

[0026] Figure 7 It is a schematic structural diagram of Embodiment 2 of the present application.

[0027] Figure 8 It is a schematic diagram of the state when the pin shaft of the spring bolt is pulled out in Embodiment 2 of the present application.

[0028] Description of the Reference Numerals:

[0029] 1. Chassis; 2. Left handle bracket; 3. Right handle bracket; 4. Mounting plate; 5. BMS mounting box; 6. EMS mounting box; 7. Rotating shaft hinge; 8. Hinge mounting screw; 9. Locking member; 10. Sliding guide rail; 11. Sliding nut; 12. Fastening screw. Detailed Embodiments

[0030] To facilitate the understanding of the present application, the present application will be described in more detail below 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 only for the purpose of illustration.

[0031] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. 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.

[0032] Embodiment 1

[0033] An embodiment of this application discloses an installation structure of an energy storage converter with an external BMS. Refer to Figure 1 and Figure 2 , which includes a chassis 1. On the two opposite outer side walls of the chassis 1, a left handle bracket 2 and a right handle bracket 3 are respectively fixedly connected. The left handle bracket 2 and the right handle bracket 3 are designed with a symmetrical structure.

[0034] Refer to Figure 1 and Figure 2 . Through holes for connecting and fixing with an outdoor energy storage integrated cabinet are provided on both the left handle bracket 2 and the right handle bracket 3. An installation plate 4 is jointly hinged on the left handle bracket 2 and the right handle bracket 3. A BMS installation box 5 and an EMS installation box 6 are fixedly connected to the installation plate 4. The BMS module is installed in the BMS installation box 5, and the EMS module is installed in the EMS installation box 6, so as to install the BMS module on the chassis 1 of the PCS, which is convenient for later maintenance and repair of the BMS module and the EMS module, improves the system integration degree, and effectively utilizes the space.

[0035] Refer to Figure 1 and Figure 2 . On one side of the chassis 1 facing the installation plate 4, a number of wiring ports are provided. The installation plate 4 can block the wiring ports, thereby improving the simplicity of the outer surface of the chassis 1. Just flip the installation plate 4 upward.

[0036] Refer to Figure 1 and Figure 3 . Both ends of the installation plate 4 are respectively connected to the left handle bracket 2 and the right handle bracket 3 through hinge hinges 7. The hinge hinges 7 are fixed to the left handle bracket 2, the right handle bracket 3, and the installation plate 4 through hinge installation screws.

[0037] Refer to Figure 2 and Figure 3 . A flange flange is vertically connected to the upper end of the installation plate 4, which can improve the structural strength of the installation plate 4.

[0038] Refer to Figure 1 , Figure 4 and Figure 5, a limiting member for restricting the flipping of the mounting plate 4 is provided on the chassis 1. The limiting member includes two sliding guide rails 10 fixedly connected to the outer side wall of the chassis 1 in the horizontal direction. A sliding nut 11 is slidably connected to each sliding guide rail 10, and a fastening screw 12 is threadedly connected to the sliding nut 11. Two chute holes for the fastening screws 12 to be inserted are symmetrically formed on the movable end of the mounting plate 4. The fastening screw 12 can slide along the length direction of the sliding guide rail 10. Slide the fastening screw 12 into the chute hole on the mounting plate 4, and then tighten the fastening screw 12 so that the fastening screw 12 presses against the mounting plate 4, thereby restricting the flipping of the mounting plate 4.

[0039] Refer to Figure 2 , Figure 3 and Figure 6 , hanging lock rings are fixedly connected to both the left handle bracket 2 and the right handle bracket 3. Locking holes for the hanging lock rings to pass through are formed on the flange fold of the mounting plate 4. A locking member 9 is inserted into the hanging lock ring. The locking member 9 is a positioning pin or a screwdriver. Flip the mounting plate 4 to the horizontal state so that the hanging lock ring passes through the locking hole, and then insert the locking member 9 into the hanging lock ring, thereby locking the mounting plate 4 and keeping the mounting plate 4 in a horizontal state, which is convenient for checking the wiring condition of the wiring port on the chassis 1.

[0040] The implementation principle of the installation structure of the energy storage converter with an external BMS in the embodiment of the present application is as follows: Install the BMS module in the BMS installation box 5 and install the EMS module in the EMS installation box 6, so as to install the BMS module on the chassis 1 of the PCS, which is convenient for later maintenance and repair of the BMS module and the EMS module, improves the system integration degree, and effectively utilizes the space.

[0041] Embodiment 2

[0042] Refer to Figure 7 and Figure 8 , the difference between Embodiment 2 and Embodiment 1 is that: the limiting member includes a spring bolt 13 fixedly connected to the movable end of the mounting plate 4, and a locking hole for the spring bolt 13 to be inserted is formed on the left handle bracket 2. When it is necessary to restrict the rotation of the mounting plate 4, just insert the pin shaft of the spring bolt 13 into the locking hole, and the movable end of the mounting plate 4 can be locked to restrict the flipping of the mounting plate 4; when it is necessary to rotate the mounting plate 4, just pull out the pin shaft of the spring bolt 13 from the locking hole, and the mounting plate 4 can be flipped, which is convenient to operate, time-saving and labor-saving.

[0043] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. 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. An energy storage converter installation structure for an external BMS, characterized in that: The invention comprises a chassis (1), wherein a left handle bracket (2) and a right handle bracket (3) are respectively arranged on two opposite outer side walls of the chassis (1), and through holes for connecting and fixing with an outdoor energy storage integrated cabinet are provided on the left handle bracket (2) and the right handle bracket (3), and a mounting plate (4) is hingedly connected to the left handle bracket (2) and the right handle bracket (3), and a BMS mounting box (5) and an EMS mounting box (6) are mounted on the mounting plate (4), and a limiting member for limiting the turning of the mounting plate (4) is arranged between the chassis (1) and the mounting plate.

2. The energy storage converter installation structure of an external BMS according to claim 1, characterized in that: The limiting member comprises two sliding guide rails (10) arranged on the outer wall of the chassis (1), each of the sliding guide rails (10) is slidably connected to a sliding nut (11), and a fastening screw (12) is threadedly connected to the sliding nut (11), and two sliding slot holes for the fastening screws (12) to be inserted are symmetrically provided on the movable end of the mounting plate (4).

3. The energy storage converter installation structure of an external BMS according to claim 1, characterized in that: The limiting member comprises a spring latch (13), and a locking hole for the spring latch (13) to be inserted is provided on the left handle bracket (2).

4. The energy storage converter installation structure of an external BMS according to claim 1, characterized in that: A flange fold is vertically arranged on the mounting plate (4).

5. The energy storage converter installation structure of an external BMS according to claim 4, characterized in that: The left handle bracket (2) and the right handle bracket (3) are both connected to a padlock ring, a locking hole for the padlock ring to pass through is provided on the flange fold on the mounting plate (4), and a locking piece (9) is inserted into the padlock ring.

6. The energy storage converter installation structure of an external BMS according to claim 5, characterized in that: The locking member (9) is a positioning pin or a screwdriver.

7. The energy storage converter installation structure of an external BMS according to claim 1, characterized in that: Both ends of the mounting plate (4) are respectively connected to the left handle bracket (2) and the right handle bracket (3) via a rotating shaft hinge (7).

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