Energy storage monitor and energy storage inverter system

Abstract

According to the energy storage monitor and the energy storage inverter system, through the technical scheme, the battery management module and the energy storage inverter module are both arranged in the frame body, the first installation space is defined by the energy storage inverter module and the inner wall of the frame body, the battery management module is arranged in the first installation space, the idle space in the frame body is utilized as much as possible, and the battery management module is arranged in the first installation space; therefore, the module structure in the frame body is more compact, and the integration level of the energy storage monitor can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of inverters, and in particular to an energy storage monitor and an energy storage inverter system. Background Art

[0002] The energy storage monitor is connected to the battery management system, which transmits battery status information to the energy storage monitor, allowing the energy storage monitor to adjust the energy conversion process based on the battery status. The energy storage monitor and battery management system are two different modules, each independently installed within the energy storage inverter system and connected to each other via cables. This causes excessive internal space occupation in the energy storage inverter system, hindering its size reduction. Utility Model Content

[0003] The embodiments of the present application provide an energy storage monitor, which improves the level of integration of the energy storage monitor to solve the above-mentioned technical problems.

[0004] In order to achieve the above objectives, according to a first aspect of the present application, an energy storage monitor is provided, comprising:

[0005] frame;

[0006] An energy storage inverter module is disposed in the frame, wherein the energy storage inverter module and an inner wall of one side of the frame define a first installation space;

[0007] A battery management module is provided in the frame and located in the first installation space, and the battery management module is electrically connected to the energy storage inverter module.

[0008] Optionally, the frame includes a first side plate, the inner wall of the first side plate facing the energy storage inverter module and the energy storage inverter module define the first installation space, and the battery management module is fixed to the first side plate.

[0009] Optionally, the frame further includes a bottom plate, the bottom plate is connected to the first side plate, and the bottom side of the battery management module is fixed on the bottom plate.

[0010] Optionally, the energy storage monitor also includes a fixing seat, which is arranged in the first installation space, and the side of the fixing seat is fixedly connected to the inner wall of the first side panel, and the bottom of the fixing seat is fixedly connected to the bottom plate, and the battery management module is detachably installed in the fixing seat.

[0011] Optionally, a snap-in groove is formed on a side of the fixing seat facing the energy storage inverter module, and the battery management module is snap-into the snap-in groove.

[0012] Optionally, the energy storage monitor also includes a pre-charging circuit module and a fuse, and the pre-charging circuit module and the fuse are both arranged in the frame, and the pre-charging circuit module is located on the same side of the energy storage inverter module and the battery management module. The side of the pre-charging circuit module facing away from the battery management module and the inner wall of one side of the frame define a second installation space, and the fuse is arranged in the second installation space.

[0013] Optionally, the frame further includes a second side plate, two sides of which are respectively connected to the first side plate and the bottom plate, and the second side plate and the pre-filling circuit module define the second installation space.

[0014] Optionally, the second side panel is provided with a maintenance window, the maintenance window is arranged in alignment with the fuse, and the second side panel is provided with a maintenance door, the maintenance door is arranged in alignment with the maintenance window, and is used to close or open the maintenance window.

[0015] Optionally, a liquid cooling plate is provided inside the base plate, and a liquid inlet joint and a liquid outlet joint of the liquid cooling plate both extend to the outside of the base plate.

[0016] According to a second aspect of the present application, there is provided an energy storage inverter system, comprising:

[0017] Energy storage batteries;

[0018] As described in the first aspect, the energy storage monitor is signal-connected to the energy storage battery.

[0019] In the energy storage monitor of the embodiment of the present application, the above-described technical solution integrates both the energy storage inverter module and the battery management module within the frame, which helps improve the integration of the energy storage monitor and makes the structure of the energy storage monitor more compact. Specifically, the energy storage inverter module is disposed within the frame and, together with a side of the frame, defines a first installation space for mounting the battery management module, thereby achieving integration of the battery management module and the energy storage inverter module. Both the battery management module and the energy storage inverter module are located within the energy storage monitor, improving the integration and structural compactness of the energy storage monitor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of an energy storage monitor provided in an exemplary embodiment of the present disclosure;

[0021] Figure 2 is an internal structural diagram of an energy storage monitor provided in an exemplary embodiment of the present disclosure;

[0022] Figure 3 Schematic diagram of the positional relationship between the battery management module and the frame in the energy storage monitor provided in an exemplary embodiment of the present disclosure.

[0023] Description of reference numerals:

[0024] 1. Frame; 11. First side panel; 12. Second side panel; 121. Maintenance window; 122. Maintenance door; 13. Bottom panel; 14. First installation space; 15. Second installation space;

[0025] 2. Energy storage inverter module;

[0026] 3. Battery management module;

[0027] 4. Fixed seat; 41. Snap-in slot;

[0028] 5. Pre-charge circuit module;

[0029] 6. Fuse;

[0030] 7. Liquid cooling plate; 71. Liquid inlet connector; 72. Liquid outlet connector. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0032] This application provides an energy storage monitor, please refer to Figure 1 and Figure 2 , Figure 1 A schematic diagram of the overall structure of the energy storage monitor provided in an embodiment of the present application.

[0033] The energy storage monitor includes a frame 1, an energy storage inverter module 2, and a battery management module 3. The energy storage inverter module 2 is arranged in the frame 1 and defines a first installation space 14 together with the inner wall of one side of the frame 1. The battery management module 3 is arranged in the frame 1 and is located in the first installation space 14. By integrating the energy storage inverter module 2 and the battery management module 3 in the frame 1, it is beneficial to improve the integration of the energy storage monitor and make the structure of the energy storage monitor more compact. In detail, the energy storage inverter module 2 is arranged in the frame 1 and defines a first installation space 14 together with one side of the frame 1. The first installation space 14 is used to install the battery management module 3 to realize the integration of the battery management module 3 and the energy storage inverter module 2, so that the battery management module 3 and the energy storage inverter module 2 are both located inside the energy storage monitor, thereby improving the integration and structural compactness of the energy storage monitor. Furthermore, the battery management module 3 is electrically connected to the energy storage inverter module 2. The battery management module 3 is used to monitor, manage, and protect the battery in real time. It monitors key battery parameters such as voltage, current, and temperature, and analyzes this data through algorithms to ensure that the battery operates safely and reliably, preventing overcharging, over-discharging, and overheating. The energy storage inverter module 2 is responsible for converting electrical energy. It converts the DC power in the battery into AC power for use in the power grid or electrical devices. It also converts AC power from the grid into DC power for charging the battery. The battery management module 3 transmits battery status information to the energy storage inverter module 2, allowing the energy storage inverter module 2 to adjust the energy conversion process based on the battery status. For example, when the battery management module 3 detects that the battery charge is too low, it will limit the energy storage inverter module 2 from outputting external power to protect the battery from damage caused by over-discharge. The communication between the battery management module 3 and the energy storage inverter module 2 is achieved through cable connection. Since the battery management module 3 and the energy storage inverter module 2 are both integrated in the frame 1, the cable between the battery management module 3 and the energy storage inverter module 2 is also integrated in the frame 1, effectively avoiding the cable from being routed outside the frame 1, shortening the cable length, reducing the cable cost, and also reducing the probability of cable damage.

[0034] In some embodiments, the frame 1 includes a first side panel 11, which secures the battery management module 3 to the inner wall of the first side panel 11 facing the energy storage inverter module 2. The first side panel 11 and the energy storage inverter module 2 together define a first installation space 14. By securing the battery management module 3 to the first side panel 11, the battery management module 3 is positioned within the first installation space 14. This first installation space 14 is defined by the smaller size of the energy storage inverter module 2, which prevents it from contacting the first side panel 11. This space would otherwise be wasted. By locating the battery management module 3 within this space, the structure within the frame 1 is made more compact, improving integration. Furthermore, securing the battery management module 3 to the first side panel 11 improves the stability of the battery management module 3, preventing the energy storage monitor from shaking or even falling out of the first installation space 14 during transport.

[0035] Furthermore, the frame 1 also includes a bottom plate 13, which is connected to the first side plate 11, and the bottom side of the battery management module 3 is fixed to the bottom plate 13. By fixing the bottom side of the battery management module 3 to the bottom plate 13, the number of surfaces of the battery management module 3 involved in the fixation is increased, which can further improve the fixation stability of the battery management module 3. In addition, the bottom and side surfaces of the battery management module 3 are respectively fixed to the bottom plate 13 and the first side plate 11, so that the battery management module 3 can adapt to the direction of placement of the energy storage monitor, and also increase the range of positions where the energy storage monitor can be placed. For example, the energy storage monitor can be placed upright or upside down without affecting the fixation of the battery management module 3.

[0036] For further information, see Figure 3 The energy storage monitor also includes a fixing base 4, which is arranged in the first installation space 14. The side of the fixing base 4 is fixedly connected to the inner wall of the first side panel 11, and the bottom surface of the fixing base 4 is fixedly connected to the bottom panel 13. The battery management module 3 is detachably installed in the fixing base 4. By arranging the fixing base 4 in the first installation space 14, the battery management module 3 does not need to be directly fixed on the side panel and bottom panel 13 of the frame 1, but is directly fixed on the fixing base 4. This is conducive to avoiding damage to the frame 1 caused by the fixation of the battery management module 3, and the battery management module 3 and the fixing base 4 are detachably installed, thereby improving the disassembly and assembly efficiency of the battery management module 3. In addition, it is also conducive to simplifying the structure of the first side panel 11 and facilitating the molding of the first side panel 11.

[0037] The removable structure of the fixing base 4 is specifically characterized by a snap-in slot 41 formed on the side of the fixing base 4 facing the energy storage inverter module 2. The battery management module 3 snaps into the snap-in slot 41, and the snap-in slot 41 is utilized to achieve rapid assembly and disassembly of the battery management module 3. The sidewalls or side pillars forming the snap-in slot 41 all have elastic deformation properties. As long as they have elastic deformation properties, they can be used to form the structure of the snap-in slot 41. By utilizing the sidewalls or side pillars with elastic deformation properties, the battery management module 3 can be snapped into the snap-in slot 41 and squeezed by the side pillars or sidewalls, thereby achieving the fixation of the battery management module 3. Of course, after the battery management module 3 is snapped into the snap-in slot 41, other fixing members, such as bolts, can be further used to further secure the battery management module 3 in the snap-in slot 41 to improve the stability of the fixation. If other fixing parts are needed to achieve fixation after the clamping, the clamping slot 41 can not only fix the battery management module 3 but also play a positioning role.

[0038] In some embodiments, the energy storage monitor also includes a pre-charge circuit module 5 and a fuse 6. The pre-charge circuit module 5 is used to prevent the energy storage monitor from having a large inrush current when it is first started or the power is reconnected. Since the energy storage monitor contains large-capacity capacitors, these capacitors may cause very large charging currents (i.e., surge currents) when the circuit is first connected. The instantaneous impact of this current may damage the devices in the circuit, especially power semiconductor components. The pre-charge circuit usually consists of a current limiting resistor and a relay. At startup, the current passes through the current limiting resistor and gradually charges the large capacitor, thereby limiting the size of the initial current. After the capacitor is fully charged, the relay closes, bypassing the current limiting resistor and restoring the normal operating mode, so that the current of the circuit can flow normally in a low-impedance path. There is a fusible link made of a specific material inside the fuse 6. When the rated current is exceeded, this fusible link will quickly heat up and melt, thereby cutting off the circuit to provide overcurrent protection.

[0039] Among them, the pre-charging circuit module 5 and the fuse 6 are both arranged in the frame 1, and the pre-charging circuit module 5 is located on the same side of the energy storage inverter module 2 and the battery management module 3. The side of the pre-charging circuit module 5 facing away from the battery management module 3 and the inner wall of one side of the frame 1 define a second installation space 15, and the fuse 6 is arranged in the second installation space 15. Since the energy storage inverter module 2 and the battery management module 3 cannot completely fill the internal space of the frame 1, the energy storage inverter module 2 and the battery management module 3 are both arranged on the same side in one direction, such as in the upper space in the frame 1, which means that the lower space in the frame 1 is in a vacant state. The pre-charging circuit module 5 is then arranged on the same side of the energy storage inverter module 2 and the battery management module 3, that is, in the lower space in the frame 1, so that the lower space can be utilized, making the structure in the frame 1 more compact and reducing space waste. Similarly, for the pre-filling circuit module 5, its volume is not enough to completely fill the lower part of the space, so that the pre-filling circuit module 5 and the inner wall of one side of the frame 1 define a second installation space 15, and the fuse 6 is arranged in the second installation space 15, further improving the compactness of the structure.

[0040] It should be noted that the energy storage inverter module 2 and the battery management module 3 can also be arranged in the lower part of the space of the frame 1, and correspondingly, the pre-charging circuit module 5 and the fuse 6 are arranged in the upper part of the space of the frame 1; or the energy storage inverter module 2 and the battery management module 3 can also be arranged in the left part of the space of the frame 1, and correspondingly, the pre-charging circuit module 5 and the fuse 6 are arranged in the right part of the space of the frame 1; or the energy storage inverter module 2 and the battery management module 3 can also be arranged in the right part of the space of the frame 1, and correspondingly, the pre-charging circuit module 5 and the fuse 6 are arranged in the left part of the space of the frame 1.

[0041] Furthermore, the frame 1 also includes a second side panel 12, the two sides of which are connected to the first side panel 11 and the bottom panel 13, respectively. Specifically, one side of the second side panel 12 is connected to the first side panel 11 at an angle, preferably 90°, and the other side of the second side panel 12 is connected to the bottom panel 13 at an angle, preferably 90°. One side is also connected to the other side at an angle, preferably 90°. The second side panel 12 and the pre-filling circuit module 5 define a second installation space 15, which fully utilizes the smaller size of the pre-filling circuit module 5, which cannot contact the second side panel 12, thereby forming a second installation space 15 between the second side panel 12 and the pre-filling circuit module 5. The fuse 6 is disposed in this installation space, thereby improving the integration of the modules and components in the frame 1 and making the structure more compact.

[0042] Furthermore, the second side panel 12 is provided with a maintenance window 121. The maintenance window 121 is positioned in alignment with the fuse 6 so that the fuse 6 can be exposed to the outside of the frame 1 through the maintenance window 121, allowing observation and maintenance of the fuse 6 without disassembling the frame 1. The second side panel 12 is provided with a maintenance door 122, which is positioned in alignment with the maintenance window 121 and is used to close or open the maintenance window 121. By providing a maintenance door 122 that can be switched between open and closed states at the maintenance window 121, the maintenance window 121 can be effectively sealed through the maintenance door 122, protecting the various modules and components inside the frame 1 from damage due to the ingress of dust, water, or other reasons. Furthermore, when the fuse 6 needs to be repaired, the maintenance door 122 can be opened, allowing the fuse 6 to be inspected, replaced, or otherwise replaced without disassembling the frame 1.

[0043] In some embodiments, a liquid cooling plate 7 is provided in the bottom plate 13, and the liquid inlet connector 71 and the liquid outlet connector 72 of the liquid cooling plate 7 both extend to the outside of the bottom plate 13. By arranging the liquid cooling plate 7 in the bottom plate 13, it can not only dissipate heat for the modules in the frame 1, but also play a protective role, effectively avoiding the problem of damage to the liquid cooling plate 7 due to being arranged outside the frame 1, and the problem of poor heat dissipation. In addition, compared with the case where the liquid cooling plate 7 is arranged in the frame 1, the liquid cooling plate 7 is arranged in the bottom plate 13, which saves more space. The liquid cooling plate 7 does not occupy the space in the frame 1, and the bottom plate 13 can protect the liquid cooling plate 7, preventing the liquid in the liquid cooling plate 7 from leaking into the frame 1. The liquid cooling plate 7 has a winding infusion tube in it, and the liquid can flow in the infusion tube, thereby taking away the heat in the frame 1. The liquid inlet connector 71 and the liquid outlet connector 72 are arranged on the same side of the liquid cooling plate 7 so that the liquid infusion pipe can be arranged to meander as much as possible in the liquid cooling plate 7, thereby increasing the area of ​​the liquid infusion pipe covering the liquid cooling plate 7 and thus increasing the heat dissipation area.

[0044] According to a second aspect of the present disclosure, an energy storage inverter system is provided, comprising an energy storage battery and an energy storage monitor, the energy storage monitor being the energy storage monitor described in any of the aforementioned embodiments. The energy storage monitor is signal-connected to the energy storage battery. This energy storage inverter system has all the beneficial effects of the aforementioned energy storage monitor, and this disclosure will not elaborate further here.

[0045] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0046] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0047] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0048] The above are merely preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. An energy storage monitor, characterized in that: include: frame; An energy storage inverter module is disposed in the frame, wherein the energy storage inverter module and an inner wall of one side of the frame define a first installation space; A battery management module is provided in the frame and located in the first installation space, and the battery management module is electrically connected to the energy storage inverter module.

2. The energy storage monitor according to claim 1, characterized in that: The frame includes a first side plate, the inner wall of the first side plate facing the energy storage inverter module and the energy storage inverter module define the first installation space, and the battery management module is fixed to the first side plate.

3. The energy storage monitor according to claim 2, characterized in that: The frame further includes a bottom plate connected to the first side plate, and the bottom side of the battery management module is fixed on the bottom plate.

4. The energy storage monitor according to claim 3, characterized in that: The energy storage monitor also includes a fixing base, which is arranged in the first installation space, and the side of the fixing base is fixedly connected to the inner wall of the first side panel, and the bottom of the fixing base is fixedly connected to the bottom plate, and the battery management module is detachably installed in the fixing base.

5. The energy storage monitor according to claim 4, characterized in that: A clamping groove is formed on one side of the fixing seat facing the energy storage inverter module, and the battery management module is clamped in the clamping groove.

6. The energy storage monitor according to any one of claims 3 to 5, characterized in that: The energy storage monitor also includes a pre-charging circuit module and a fuse. The pre-charging circuit module and the fuse are both arranged in the frame, and the pre-charging circuit module is located on the same side of the energy storage inverter module and the battery management module. The side of the pre-charging circuit module facing away from the battery management module and the inner wall of one side of the frame define a second installation space, and the fuse is arranged in the second installation space.

7. The energy storage monitor according to claim 6, characterized in that: The frame further includes a second side plate, two sides of which are respectively connected to the first side plate and the bottom plate, and the second side plate and the pre-filling circuit module define a second installation space.

8. The energy storage monitor according to claim 7, characterized in that: The second side panel is provided with a maintenance window, which is arranged in alignment with the fuse. The second side panel is provided with a maintenance door, which is arranged in alignment with the maintenance window and is used to close or open the maintenance window.

9. The energy storage monitor according to any one of claims 3 to 5, characterized in that: A liquid cooling plate is provided inside the bottom plate, and a liquid inlet joint and a liquid outlet joint of the liquid cooling plate both extend to the outside of the bottom plate.

10. An energy storage inverter system, characterized in that: include: Energy storage batteries; The energy storage monitor according to any one of claims 1 to 9, wherein the energy storage monitor is signal-connected to the energy storage battery.

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