Industrial and commercial miniature energy storage device

Abstract

The utility model discloses an industrial and commercial miniature energy storage device, which relates to the technical field of industrial and commercial energy storage and comprises an energy storage cabinet comprising a cabinet front door and a cabinet box; a touch screen is arranged on the inner side of the cabinet front door; a plurality of layers are arranged in the cabinet box, an energy storage converter is arranged on the uppermost layer, an energy management system box is arranged at the bottom of the energy storage converter, and a battery module is arranged at the bottom of the energy management system box; a 4G communication module is arranged in the energy management system box; the inner side wall of the cabinet box is also provided with a three-phase multifunctional ammeter and an Ethernet communication module. According to the industrial and commercial miniature energy storage device, an off-grid and grid-connected working mode and a manual and automatic switching charging and discharging working mode are realized, and efficient energy storage and release are realized; the micro energy storage device improves the robustness and reliability of a power grid, is compact in structure, and is suitable for small equipment or places in industrial and commercial scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial and commercial energy storage, and in particular to a micro energy storage device for industrial and commercial use. Background Art

[0002] During the operation of industrial and commercial power transmission lines, power outages are inevitable. In the case of insufficient power supply in remote mountain villages, in order to avoid the losses caused by power outages to factories and specific places, industrial and commercial energy storage equipment has been widely used.

[0003] In the related technology, the existing industrial and commercial micro energy storage equipment is mainly used in the grid-connected mode, which connects the energy storage equipment in parallel to the power grid and compensates the load power by releasing the stored electric energy. At the same time, the equipment lacks the remote data reading function, and the user needs to go to the site to check the table to obtain data information and send the power plan curve, which wastes manpower and material resources and causes many inconveniences in use. There is an urgent need for an industrial and commercial micro energy storage device that can still be put into operation in the power grid off mode and can remotely obtain equipment operation information. Utility Model Content

[0004] The purpose of the present utility model is to provide a micro energy storage device for industrial and commercial use, so as to solve at least one aspect of the problems and defects raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A micro energy storage device for industrial and commercial use, comprising:

[0007] An energy storage cabinet, the energy storage cabinet comprising a cabinet front door and a cabinet box;

[0008] A touch screen is arranged on the inner side of the cabinet front door;

[0009] The cabinet box is provided with several layers, wherein the top layer is provided with an energy storage converter, an energy management system box is provided at the bottom of the energy storage converter, and a battery module is provided at the bottom of the energy management system box;

[0010] The energy management system box is provided with a 4G communication module;

[0011] A three-phase multifunctional electric meter and an Ethernet communication module are also arranged on the inner wall of the cabinet.

[0012] The industrial and commercial micro energy storage device according to this solution has at least the following technical effects:

[0013] The industrial and commercial micro energy storage device realizes two-way data transmission with the energy management system through the 4G communication module, and can obtain data information of the device system in real time, and can adjust the PCS output and input power by remotely modifying the power metering curve; at the same time, the energy management system works together with the energy storage inverter to adjust the output power of the energy storage inverter according to the load power size, and charges the battery module during the valley electricity price period and discharges the external load during the peak electricity price period to obtain the electricity price difference, and remotely obtains the operation information and income of the device through the 4G communication module; realizes the industrial and commercial micro energy storage off-grid working mode and manual and automatic switching charging and discharging working mode, realizing efficient energy storage and release; improves the robustness and reliability of the power grid of the energy storage device, and the micro energy storage device has a compact structure and is suitable for small equipment or places in industrial and commercial scenarios.

[0014] As a further solution of the utility model: the battery module includes 4 groups of battery boxes, and the battery box is integrated with a battery management system.

[0015] Since the battery module includes 4 groups of battery boxes, the battery box is integrated with a battery management system, which enhances the rated energy of the energy storage device, improves the service life and stability of the battery module, and realizes balanced charging and discharging of the battery through the battery management system, alarm of battery system operation, local display of alarm, real-time voltage display of battery module, battery charge and discharge current detection, upper limit voltage of single cell charge and lower limit voltage of single cell discharge, thus avoiding overcharging or over-discharging of the battery, improving the safety of battery use, and thus improving the stability and reliability of the entire energy storage system.

[0016] As a further solution of the utility model: each group of battery boxes is composed of two battery PACK modules.

[0017] Since each battery box is composed of two battery PACK modules, the battery module has high energy density and short charging time, which can provide long-lasting power support for the device and maintain the operating stability of the device.

[0018] As a further solution of the utility model: the three-phase AC side of the energy storage converter is connected in parallel to the low-voltage grid side through a circuit breaker, and the DC side of the energy storage converter is electrically connected to the battery module.

[0019] Since the three-phase AC side of the energy storage inverter is connected in parallel to the low-voltage grid side through a circuit breaker, and the DC side of the energy storage inverter is electrically connected to the battery module, the energy storage inverter is connected to the energy management system box through Ethernet communication, which can realize effective conversion between DC power and AC power, and realize efficient storage and release of energy, thereby realizing the unified management of the energy storage inverter and the charging and discharging operations of the energy management system, while enhancing the management and protection of the battery module and improving the safety and stability of the device.

[0020] As a further solution of the utility model: the energy storage cabinet also includes a cabinet rear door, and a refrigeration device is arranged on the outer side of the cabinet rear door.

[0021] Since the energy storage cabinet also includes a rear door, the important components of the device can be sealed in the cabinet to prevent dust and water vapor from entering the cabinet; and a refrigeration device is provided on the outside of the rear door, so that the temperature and humidity inside the cabinet can be effectively detected and controlled, reducing the loss of important components in the cabinet due to heat, thereby enhancing the operating efficiency and stability of the device.

[0022] As a further solution of the utility model: a fire-fighting device is also arranged in the cabinet.

[0023] By installing a fire-fighting device in the cabinet, it is possible to promptly detect abnormal system operation or excessive current load that may cause overheating of important components in the cabinet and cause a fire. Through the warning of the fire-fighting device, emergency measures can be taken in time to reduce the possibility of fire and improve the safety performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0025] Figure 1 It is a schematic diagram of the overall structure of a micro energy storage device for industrial and commercial use;

[0026] Figure 2 This is a schematic diagram of the structure of a single battery box for an industrial and commercial micro energy storage device;

[0027] Figure 3 This is a schematic diagram of the structure of an energy storage converter for an industrial and commercial micro energy storage device;

[0028] Figure 4 The schematic diagram of the structure of an energy management system box for an industrial and commercial micro energy storage device.

[0029] Reference numerals:

[0030] 101. Energy storage cabinet; 102. Cabinet front door; 103. Cabinet box; 104. Touch screen; 105. Energy storage inverter; 106. Energy management system box; 107. Battery box; 108. Cabinet rear door; 109. Refrigeration device. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0035] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0037] like Figure 1-4 The embodiment of the utility model shown is a micro energy storage device for industrial and commercial use, comprising: an energy storage cabinet 101, the energy storage cabinet 101 comprising a cabinet front door 102 and a cabinet box 103; a touch screen 104 is arranged on the inner side of the cabinet front door 102; a plurality of layers are arranged in the cabinet box 103, wherein an energy storage inverter 105 is arranged on the top layer, an energy management system box 106 is arranged at the bottom of the energy storage inverter 105, and a battery module is arranged at the bottom of the energy management system box 106; a 4G communication module is arranged in the energy management system box 106; a three-phase multi-function electric meter and an Ethernet communication module are also arranged on the inner wall of the cabinet box 103.

[0038] Specifically, the industrial and commercial micro energy storage device realizes two-way data transmission with the energy management system through the 4G communication module, and can obtain data information of the device system in real time, and can adjust the PCS output and input power by remotely modifying the power metering curve; at the same time, the energy management system works together with the energy storage inverter 105 to adjust the output power of the energy storage inverter 105 according to the load power size, and obtains the price difference by charging the battery module during the valley electricity price period and discharging the external load during the peak electricity price period, and remotely obtains the operation information and income of the device through the 4G communication module; realizes the industrial and commercial micro energy storage off-grid working mode and manual and automatic switching charging and discharging working mode, and realizes efficient energy storage and release; improves the robustness and reliability of the power grid of the energy storage device, and the micro energy storage device has a compact structure and is suitable for small equipment or places in industrial and commercial scenarios.

[0039] like Figure 1 and Figure 2 As shown, the battery module includes four battery boxes 107 , and a battery management system is integrated in the battery box 107 .

[0040] Specifically, since the battery module includes 4 groups of battery boxes 107, the battery box 107 is integrated with a battery management system, which enhances the rated energy of the energy storage device, improves the service life and stability of the battery module, and the battery management system performs battery system operation alarm, local alarm display, battery module real-time voltage display and battery charge and discharge current detection, single cell charging upper limit voltage and single cell discharging lower limit voltage settings, thereby achieving balanced charging and discharging of the battery, avoiding overcharging or over-discharging of the battery, and improving the safety of battery use, thereby improving the stability and reliability of the entire energy storage system.

[0041] Furthermore, each battery box 107 is composed of two battery PACK modules.

[0042] Specifically, since each battery box 107 is composed of two battery PACK modules, the battery module has a high energy density and a short charging time, which can provide long-lasting power support for the device and maintain the operating stability of the device.

[0043] According to the embodiment of the present utility model, the three-phase AC side of the energy storage converter 105 is connected in parallel to the low-voltage grid side through a circuit breaker, and the DC side of the energy storage converter 105 is electrically connected to the battery module.

[0044] Specifically, since the three-phase AC side of the energy storage inverter 105 is connected in parallel to the low-voltage power grid side through a circuit breaker, and the DC side of the energy storage inverter 105 is electrically connected to the battery module, the energy storage inverter 105 is connected to the energy management system box 106 via Ethernet communication, which can achieve effective conversion between DC power and AC power, and achieve efficient storage and release of energy, thereby realizing the unified management of the energy storage inverter 105 and charging and discharging operations by the energy management system, while enhancing the management and protection of the battery module, and improving the safety and stability of the device.

[0045] like Figure 1 As shown, the energy storage cabinet 101 further includes a cabinet rear door 108 , and a refrigeration device 109 is disposed outside the cabinet rear door 108 .

[0046] Specifically, since the energy storage cabinet 101 also includes a cabinet rear door 108, important components of the device can be sealed in the cabinet box 103 to prevent dust and water vapor from entering the cabinet box 103; and a refrigeration device 109 is provided on the outside of the cabinet rear door 108, so that the temperature and humidity inside the cabinet box 103 can be effectively detected and controlled, reducing the loss of important components in the cabinet box 103 due to heat, thereby enhancing the operating efficiency and stability of the device.

[0047] It should also be noted that a fire-fighting device is also provided in the cabinet 103 .

[0048] Specifically, by installing a fire-fighting device in the cabinet 103, it is possible to promptly detect abnormal system operation or excessive current load that causes overheating of important components in the cabinet 103 and causes a fire. Through the warning of the fire-fighting device, emergency measures can be taken in time to reduce the possibility of fire and improve the safety performance of the device.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A micro energy storage device for industrial and commercial use, characterized in that: include: An energy storage cabinet (101), the energy storage cabinet (101) comprising a cabinet front door (102) and a cabinet box (103); A touch screen (104) is provided on the inner side of the cabinet front door (102); The cabinet box (103) is provided with a plurality of layers, wherein the top layer is provided with an energy storage converter (105), an energy management system box (106) is provided at the bottom of the energy storage converter (105), and a battery module is provided at the bottom of the energy management system box (106); The energy management system box (106) is provided with a 4G communication module; A three-phase multifunctional electric meter and an Ethernet communication module are also arranged on the inner side wall of the cabinet (103).

2. The industrial and commercial micro energy storage device according to claim 1, characterized in that: The battery module comprises four groups of battery boxes (107), and a battery management system is integrated in the battery box (107).

3. The industrial and commercial micro energy storage device according to claim 2, characterized in that: Each group of battery boxes (107) is composed of two battery PACK modules.

4. The industrial and commercial micro energy storage device according to claim 1, characterized in that: The three-phase AC side of the energy storage converter (105) is connected in parallel to the low-voltage power grid side via a circuit breaker, and the DC side of the energy storage converter (105) is electrically connected to a battery module.

5. The industrial and commercial micro energy storage device according to claim 1, characterized in that: The energy storage cabinet (101) further comprises a cabinet rear door (108), and a refrigeration device (109) is arranged outside the cabinet rear door (108).

6. The industrial and commercial micro energy storage device according to claim 1, characterized in that: A fire-fighting device is also provided in the cabinet (103).

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